Drying mechanism of plastic bag printing machine

Abstract

The utility model relates to the field of plastic bag printing and processing, and discloses a drying mechanism of a plastic bag printing machine, which comprises a conveying frame, an air supply component, a drying box, a rotating drum, a bevel gear II, a rotating shaft, an upper fan blade, a bevel gear I, a lower fan blade, a bevel gear III and a driving motor. The air supply assembly and the rotating assembly rotationally spray hot air to the drying box, a driving motor drives a third bevel gear to rotate, the third bevel gear drives a first bevel gear and a second bevel gear to rotate, the first bevel gear and the second bevel gear are opposite in rotating direction, the second bevel gear drives a rotating shaft to rotate, and therefore upper fan blades rotate and accelerate hot air generated by the air supply assembly to flow downwards; the first bevel gear drives the lower fan blade to rotate, the lower fan blade blows hot air upwards, the upper fan blade and the lower fan blade form convection, the hot air is rapidly and evenly diffused in the drying box, and it is guaranteed that the temperature in the drying box rises rapidly and is consistent. The drying device has the advantages and effects of being uniform and rapid in drying and high in drying efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bag printing and processing, and in particular to a drying mechanism of a plastic bag printing machine. Background Art

[0002] Plastic bags, made primarily of plastic, are used to package a variety of items and are essential in people's daily lives. To increase the variety of plastic bags, designs are often printed on them during production. Plastic bag printing machines are typically used for printing these bags. These machines include a drying mechanism that dries the ink printed on the bags. Chinese utility model patent publication number CN220742490U discloses an ink drying device for plastic bag printing. The device comprises a drying box, with support bases fixed to both left and right ends of the drying box's lower surface. A drying mechanism for drying the ink is provided at the left end of the drying box's upper surface. A conveyor rack is fixed to the inner bottom wall of the drying box. Sealing mechanisms are provided on both left and right side walls of the drying box's inner cavity. The drying mechanism includes a mounting box fixed to the left end of the drying box's upper surface. An air inlet is formed in the left wall of the mounting box's inner cavity, and a deflector is fixed to the left wall of the mounting box's inner cavity. This ink drying device for plastic bag printing utilizes a mounting box, air inlet, air guide, fan, partition, heating wire, vent pipe, hollow plate, and nozzle that all work together. The fan then blows the hot air ejected from the nozzle downward, thereby circulating the air within the drying box and distributing the air evenly, thereby improving the ink drying effect.

[0003] However, the existing drying mechanism only uses a one-way fan to drive the hot air in the middle downward and the hot air nozzle is fixed. The hot air in the drying box circulates slowly and diffuses slowly and unevenly, resulting in uneven drying and low drying efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a drying mechanism for a plastic bag printing machine, which solves the above technical problems and has the effects of uniform and rapid drying and high drying efficiency.

[0005] The above technical objectives of the present utility model are achieved through the following technical solutions: A drying mechanism of a plastic bag printing machine, a conveyor rack is provided at the bottom of the drying box, an air supply assembly is provided at the top, uniform components are provided on both sides of the conveyor rack, the uniform component includes a rotating shaft rotatably connected to the drying box, a rotating drum is sleeved on one end of the rotating shaft, and a fixing cap is fixed on the other end, and upper fan blades are evenly fixed on the circumference of the fixing cap, the rotating drum is rotatably connected to the drying box and is fixedly provided with bevel gear 1 at one end and an annular fixing sleeve at the other end, lower fan blades are evenly fixed on the circumference of the fixing sleeve, bevel gear 2 is fixed on the bottom end of the rotating shaft, and it also includes a drive motor, bevel gear 3 is fixed on the output end of the drive motor, and bevel gear 3 is meshed with bevel gear 1 and bevel gear 2.

[0006] By adopting the above technical solution, the conveyor rack delivers the printed plastic bags into the drying box. The drive motor drives bevel gear 3 to rotate, which in turn drives bevel gear 1 and bevel gear 2 to rotate. Bevel gear 1 and bevel gear 2 rotate in opposite directions. Bevel gear 2 drives the rotating shaft to rotate, thereby rotating the fixed cap and upper fan blades. The upper fan blades accelerate the hot air generated by the air supply assembly to flow downward. Bevel gear 1 drives the fixed sleeve and lower fan blades to rotate, and the lower fan blades blow the hot air upward. The upper and lower fan blades form convection, allowing the hot air generated by the air supply assembly to quickly and evenly diffuse within the drying box, ensuring that all parts of the drying box heat up quickly and at a uniform temperature. This dries the ink on the plastic bags on the conveyor rack, achieving the advantages of uniform, rapid, and efficient drying.

[0007] The present invention is further configured as follows: an air supply component includes a fan, an electric heater is connected to the rear end of the fan, a rotating disk is rotatably connected inside the drying box, the rotating disk is hollow inside and a plurality of nozzles are evenly arranged below, an air outlet of the electric heater is rotatably connected to the rotating disk through an air inlet pipe, and a rotating component is also included to drive the rotating disk to rotate.

[0008] By adopting the above technical solution, the rotating assembly drives the rotating disk to rotate, and the fan blows air toward the electric heater to the rotating disk and then sprays it out through the nozzle. Since the nozzle rotates with the rotating disk, the hot air will rotate and spray toward the drying box, which can drive the hot air to flow up and down rapidly, further ensuring that the temperature of various parts in the drying box rises quickly and uniformly, further improving drying efficiency.

[0009] The utility model is further configured as follows: a rack is fixedly provided on the circumferential outer wall of the rotating disk, a rotating motor is provided on the top of the drying box, a gear is provided at the output end of the rotating motor, and the gear is meshed with the rack.

[0010] By adopting the above technical solution, the rotating motor drives the gear to rotate, and the gear engages with the rack, thereby driving the rotating disk to rotate, and the rotating disk can be rotated quickly.

[0011] The present invention is further configured as follows: the length of the conveying rack is greater than the length of the drying box.

[0012] By adopting the above technical solution, the loading of printed plastic bags and the unloading of dried plastic bags are facilitated.

[0013] The present invention is further configured as follows: the conveying frame is located between the upper fan sheet and the lower fan sheet.

[0014] The utility model is further configured as follows: the upper fan blade and the lower fan blade are equal in length.

[0015] The present invention is further configured as follows: the distance between the two uniform components is greater than the length of the upper fan.

[0016] By adopting the above technical solution, it is ensured that the two upper fan blades and the two lower fan blades rotate independently, and no collision or accident occurs.

[0017] The present invention is further configured as follows: a storage box is provided on the upper and lower parts of the drying box, and the bevel gear 1, the bevel gear 2 and the bevel gear 3 are located in the storage box.

[0018] By adopting the above technical solution, the drive motor, bevel gear 1, bevel gear 2 and bevel gear 3 are arranged in the receiving box to play a protective role.

[0019] The present invention is further configured as follows: three upper fan blades are provided.

[0020] The present invention is further configured as follows: the rotating motor is located outside the drying box.

[0021] By adopting the above technical solution, it is avoided that the high temperature in the drying box will reduce the service life of the rotating motor.

[0022] The beneficial effects of the utility model are:

[0023] 1. A conveyor rack is provided to deliver printed plastic bags into the drying oven. The drive motor rotates bevel gear 3, which in turn drives bevel gears 1 and 2. Bevel gears 1 and 2 rotate in opposite directions. Bevel gear 2 drives the rotating shaft, thereby rotating the fixed cap and upper fan blades. The upper fan blades accelerate the downward flow of hot air generated by the air supply assembly. Bevel gear 1 drives the fixed sleeve and lower fan blades to rotate. The lower fan blades blow the hot air upward. The upper and lower fan blades form convection, allowing the hot air generated by the air supply assembly to quickly and evenly diffuse within the drying oven, ensuring rapid and consistent temperature rise across all parts of the drying oven. This dries the ink on the plastic bags on the conveyor rack, achieving the advantages of uniform, rapid, and efficient drying.

[0024] 2. By setting up a rotating motor to drive the gear to rotate, the gear engages with the rack, thereby driving the rotating disk to rotate. The fan heats the electric heater and blows the air to the rotating disk and then sprays it out through the nozzle. Since the nozzle rotates with the rotating disk, the hot air will rotate and spray toward the drying box, driving the hot air to flow up and down quickly, which can further ensure that all parts of the drying box are heated quickly and the temperature is consistent, further improving the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are merely some embodiments of the present invention. Those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0026] Figure 1 It is a schematic diagram of the interior of the drying box of the present invention.

[0027] Figure 2 It is an overall front view of the utility model.

[0028] In the figure, 1. Drying box; 2. Conveyor rack; 3. Air supply assembly; 31. Fan; 32. Electric heater; 33. Rotating disk; 34. Nozzle; 35. Air inlet pipe; 36. Rack; 37. Rotating motor; 38. Gear; 4. Uniform assembly; 40. Rotating shaft; 41. Rotating drum; 42. Fixing cap; 43. Upper fan blade; 44. Bevel gear 1; 45. Fixing sleeve; 46. Lower fan blade; 47. Bevel gear 2; 48. Drive motor; 49. Bevel gear 3. DETAILED DESCRIPTION

[0029] The technical solutions of the present invention will be described clearly and completely below with reference to specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, and are not exhaustive. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0030] Embodiment, a drying mechanism of a plastic bag printing machine, such as Figure 1 、 Figure 2As shown, it includes a drying box 1 with a conveyor frame 2 at the bottom and an air supply assembly 3 at the top, a rotating drum 41 at one end, a fixed cap 42 at the other end, and a rotating shaft 40 with a bevel gear 2 47 fixed on one end near the rotating drum 41. The rotating shaft 40 is respectively arranged on both sides of the conveyor frame 2 and includes a rotating shaft 40 rotatably connected to the drying box 1, an upper fan blade 43 evenly fixed on the circumference of the fixed cap 42, a bevel gear 1 44 fixed on one end of the rotating drum 41, an annular fixed sleeve 45 fixed on the other end of the rotating drum 41, a lower fan blade 46 evenly fixed on the circumference of the fixed sleeve 45, and a uniform assembly 48 fixedly connected to the bevel gear 3 49. Among them, the bevel gear 3 49 is meshed with the bevel gear 1 44 and the bevel gear 2 47, including a fan 31, an electric heater 32 connected to the air outlet of the fan 31, The air supply component 3 of the rotating disk 33 is hollow inside and has multiple nozzles 34 evenly arranged at the bottom. It is used to drive the rotating disk 33 to rotate. It includes a rack 36 fixed to the circumference of the outer wall of the rotating disk 33, and a rotating component of a gear 38 that meshes with the rack 36 and is fixedly connected to the rotating motor 37. Among them, the rotating disk 33 is rotatably connected in the drying box 1, the conveying rack 2 is located between the upper fan blade 43 and the lower fan blade 46, and the upper fan blade 43 and the lower fan blade 46 are equal in length. The distance between the two uniform components 4 is greater than the length of the upper fan blade 43, and the rotating motor 37 is located outside the drying box 1.

[0031] Its working principle is as follows: the conveyor rack 2 is activated to deliver the freshly printed plastic bags into the drying box 1. The rotating motor 37 is activated to rotate the gear 38. Since the gear 38 meshes with the rack 36, the rotating disk 33 is rotated. The fan 31 heats the electric heater 32 with air, blowing it toward the rotating disk 33 and then spraying it out through the nozzle 34. Since the nozzle 34 rotates with the rotating disk 33, the hot air rotates and sprays toward the drying box 1, which can drive the hot air to flow up and down rapidly, further ensuring that the temperature of each part in the drying box 1 rises quickly and uniformly, further improving the drying efficiency.

[0032] At the same time, the drive motor 48 is started to rotate bevel gear three 49. Bevel gear three 49 drives bevel gear one 44 and bevel gear two 47 to rotate, with bevel gear one 44 and bevel gear two 47 rotating in opposite directions. Bevel gear two 47 drives the rotating shaft 40 to rotate, thereby rotating the fixing cap 42 and the upper fan blade 43. The upper fan blade 43 accelerates the hot air generated by the air supply assembly 3 to flow downward. Bevel gear one 44 drives the fixing sleeve 45 and the lower fan blade 46 to rotate. The lower fan blade 46 blows the hot air upward. The upper and lower fan blades 46 form convection, so that the hot air generated by the air supply assembly 3 is quickly and evenly diffused in the drying box 1, ensuring that all parts in the drying box 1 are heated quickly and at a uniform temperature, thereby drying the ink on the plastic bags on the conveyor rack 2. This has the advantages of uniform and rapid drying and high drying efficiency.

[0033] Specifically, the length of the conveying rack 2 is greater than that of the drying box 1, which facilitates loading of materials into the drying box 1 and automatic unloading of materials, thereby improving drying efficiency.

[0034] Specifically, a receiving box is provided on the upper and lower sides of the drying box 1. The bevel gear 1 44, the bevel gear 2 47 and the bevel gear 3 49 are located in the receiving box, and the receiving box plays a protective role.

[0035] Specifically, the rotating motor 37 is located outside the drying box 1 to avoid the high temperature inside the drying box 1 from reducing the service life of the rotating motor 37.

Claims

1. A drying mechanism for a plastic bag printing machine, comprising a drying box (1), characterized in that: A conveying frame (2) is provided at the bottom of the drying box (1), and an air supply assembly (3) is provided at the top. A uniform assembly (4) is provided on both sides of the conveying frame (2). The uniform assembly (4) includes a rotating shaft (40) connected to the drying box (1). One end of the rotating shaft (40) is provided with a rotating drum (41), and the other end is fixed with a fixing cap (42). The fixing cap (42) is fixed with upper fan blades (43) uniformly around the circumference. The rotating drum (41) is rotatably connected to the drying box (1) and is fixed with a bevel gear 1 (44) at one end and a ring-shaped fixing sleeve (45) at the other end. The fixing sleeve (45) is fixed with lower fan blades (46) uniformly around the circumference. The bottom end of the rotating shaft (40) is fixed with a bevel gear 2 (47). The rotating shaft (40) also includes a driving motor (48). The output end of the driving motor (48) is fixed with a bevel gear 3 (49). The bevel gear 3 (49) is meshed with the bevel gear 1 (44) and the bevel gear 2 (47).

2. The drying mechanism of a plastic bag printing machine according to claim 1, characterized in that: The air supply assembly (3) includes a fan (31), the tail end of the fan (31) is connected to an electric heater (32), a rotating disk (33) is rotatably connected in the drying box (1), the rotating disk (33) is hollow inside and a plurality of nozzles (34) are evenly arranged below, the air outlet of the electric heater (32) is rotatably connected to the rotating disk (33) through an air inlet pipe (35), and the drying box (1) further includes a rotating assembly for driving the rotating disk (33) to rotate.

3. The drying mechanism of a plastic bag printing machine according to claim 2, characterized in that: A rack (36) is fixedly provided on the circumferential outer wall of the rotating disk (33), a rotating motor (37) is provided on the top of the drying box (1), and a gear (38) is provided at the output end of the rotating motor (37), and the gear (38) is meshed with the rack (36).

4. The drying mechanism of a plastic bag printing machine according to claim 1, characterized in that: The length of the conveying rack (2) is greater than the length of the drying box (1).

5. The drying mechanism of a plastic bag printing machine according to claim 1, characterized in that: The conveying frame (2) is located between the upper fan plate (43) and the lower fan plate (46).

6. The drying mechanism of a plastic bag printing machine according to claim 1, characterized in that: The upper fan piece (43) and the lower fan piece (46) are equal in length.

7. The drying mechanism of a plastic bag printing machine according to claim 6, characterized in that: The distance between the two uniform components (4) is greater than the length of the upper fan (43).

8. The drying mechanism of a plastic bag printing machine according to claim 1, characterized in that: The drying box (1) is provided with a receiving box on the upper and lower sides, and the bevel gear 1 (44), bevel gear 2 (47), and bevel gear 3 (49) are located in the receiving box.

9. The drying mechanism of a plastic bag printing machine according to claim 1, characterized in that: The upper fan blades (43) are provided with three.

10. The drying mechanism of a plastic bag printing machine according to claim 3, characterized in that: The rotating motor (37) is located outside the drying box (1).

Images