Automatic paper feeding device of carton printing machine

Abstract

The utility model relates to the technical field of printing paper feeding, in particular to an automatic paper feeding device of a carton printing machine, which comprises a machine base and a conveying belt rotatably arranged on the machine base, the machine base is provided with a driving component, the driving component is used for driving the conveying belt to operate, and the machine base is provided with a straightening roller when rotating. And the straightening roller is rotationally arranged above the conveying belt. The carton printing device has the effect that the overall carton printing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing and paper feeding, in particular to an automatic paper feeding device for a carton printing machine. Background Art

[0002] With the development of the packaging industry, cartons, as one of the important packaging materials, have been increasingly used in the transportation and protection of various commodities. Especially with the progress of the times, the production scale of various industries has become larger and larger, and the demand for cartons used for packaging has also increased. A carton printing machine is a printing device that can print the required text, patterns and other information on the surface of a carton. It generally includes process flows such as plate mounting, inking, embossing, and paper feeding.

[0003] When the carton printing machine is working, the text and images to be printed are first made into a printing plate, installed on the printing press, and then a person operates the printing press to evenly apply ink to the areas with text and images on the printing plate, and then transfer them to the corrugated cardboard to complete the printing.

[0004] During actual use, workers need to move cardboard when performing carton printing operations, and they need to move it again after the cardboard is used up. This is not only time-consuming and labor-intensive, but also requires interrupting the cardboard printing operation, resulting in low overall carton printing efficiency. Utility Model Content

[0005] In order to improve the overall low efficiency of carton printing, the present application provides an automatic paper feeding device for a carton printing machine.

[0006] The automatic paper feeding device of a carton printing machine provided in this application adopts the following technical solution:

[0007] An automatic paper feeding device for a carton printing machine includes a machine base and a conveyor belt rotatably arranged on the machine base. The machine base is provided with a driving assembly, which is used to drive the conveyor belt to operate. When the machine base rotates, a correction roller is provided, which is rotatably arranged above the conveyor belt.

[0008] By adopting the above technical solution, the cardboard falls onto the machine base conveyor belt after being processed in the previous process, and the transmission belt is driven to rotate by the driving component, thereby driving the cardboard to move forward, and the rotation of the correction roller is assisted to adjust the posture of the cardboard, reduce the possibility of cardboard skew and blockage, and arrange it neatly, so that the cardboard moves through the conveyor belt and is automatically transported from the previous process to the carton printing machine. The staff can take the neatly arranged cardboard from the conveyor belt during the printing interval. The operation is simple and convenient, and there is no need to stop the printing work, and there is almost no waste of time, which improves the overall efficiency of carton printing.

[0009] Preferably, the driving assembly includes a driving motor, a main driving roller and an auxiliary driving roller. The machine base is provided with a conveying groove. The main driving roller and the auxiliary driving roller are both rotatably set in the conveying groove. The conveyor belt is rotatably set in the conveying groove and wound around the main driving roller and the auxiliary driving roller. The driving motor is set on the machine base, and the driving motor shaft is connected to the main driving roller.

[0010] By adopting the above technical solution, when the conveyor belt is started, the drive motor is started to drive the main drive roller to rotate, and then the conveyor belt is driven to rotate with the assistance of the auxiliary drive roller, so as to transport the cardboard. The operation is simple and convenient, and it is easy to use, which improves the transportation efficiency and thus improves the carton printing efficiency.

[0011] Preferably, the main driving roller is provided with a first transmission sprocket, the auxiliary driving roller is provided with a second transmission sprocket, and the engaging sleeves of the first transmission sprocket and the second transmission sprocket are provided with a transmission chain.

[0012] By adopting the above technical solution, when the main drive roller rotates, it drives the first transmission sprocket to rotate, and with the cooperation of the transmission chain, it drives the second transmission sprocket to rotate, thereby driving the auxiliary drive roller to rotate, thereby improving the stability of the transmission belt rotation.

[0013] Preferably, the machine base is provided with a positioning grating ruler and a controller connected by signals, the positioning grating ruler is used to measure the travel distance and position of the cardboard, the machine base is provided with a warning light connected to the controller signal, and the controller is used to control the flashing of the warning light according to the measurement result of the positioning grating ruler.

[0014] By adopting the above technical solution, the positioning grating scale accuracy reaches the μm level, and the maximum range is not less than 1000mm, so as to detect the position of the moving cardboard. When the cardboard moves to the printing press, the grating scale measurement result is less than the set value, and the controller controls the warning light to flash, thereby reminding the staff that the cardboard is in place.

[0015] Preferably, the machine base is provided with a mounting block, the correction roller is rotatably mounted on the mounting block, the mounting block is provided with a rotating motor, and the rotating shaft of the rotating motor is connected to the correction roller.

[0016] By adopting the above technical solution, the rotating motor on the mounting block is used to drive the correction roller to rotate, thereby improving the stability of the correction roller in driving the cardboard to adjust its position and posture, making the cardboard more neatly arranged, convenient for staff to take, and improving the convenience of use.

[0017] Preferably, a plurality of the straightening rollers are provided, the mounting block is provided with a transmission assembly, the transmission assembly is used to drive the straightening roller to rotate, the machine base is provided with a limiting guide rail, and the limiting guide rail is provided above the conveyor belt.

[0018] By adopting the above technical solution, the transmission assembly drives multiple correction rollers to rotate, thereby improving the cardboard correction effect. At the same time, the moving cardboard is limited by the limiting guide rail, thereby improving the neatness of the cardboard arrangement.

[0019] Preferably, the transmission assembly includes a transmission gear and a reversing gear, both of which are rotatably set on the mounting block, the transmission gear is connected to the correction roller, the reversing gear is meshed between two adjacent transmission gears, and the rotating motor shaft is connected to one of the transmission gears.

[0020] By adopting the above technical solution, the rotating motor drives the transmission gear to rotate in cooperation with the reversing gear, thereby driving multiple correction rollers to rotate synchronously, which is simple and convenient to operate and improves the convenience of use.

[0021] Preferably, the machine base is rotatably provided with a safety protection door, and the machine base is provided with a recycling box.

[0022] By adopting the above technical solution, a safety protection door is set up to reduce the possibility of workers accidentally touching the correction rollers or conveyor belts during rotation and causing injuries, thereby reducing safety risks. A recycling bin is set up to recycle cardboard that the workers do not have time to take.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting up a machine base, conveyor belt, drive assembly and correction roller, the cardboard falls on the machine base conveyor belt, and the drive assembly drives the conveyor belt to rotate on the machine base. In the process of the cardboard following the movement of the conveyor belt, the cardboard adjusts its posture through the rotation of the correction roller, so that the cardboard is arranged neatly during the movement, which is convenient for workers to take and use, thus completing the transportation of cardboard during the production and printing process. Workers do not need to stop printing to manually carry and take the cardboard, saving time and improving printing efficiency.

[0025] 2. By arranging a drive motor, a main drive roller, an auxiliary drive roller, a first transmission sprocket, a second transmission sprocket and a transmission chain, the drive motor drives the main drive roller and the first transmission sprocket to rotate, and the transmission chain drives the second transmission sprocket to rotate, thereby mobilizing the auxiliary drive roller to rotate, and then drives the transmission belt to rotate and move, realizing drive, simple and convenient operation, and improving convenience of use;

[0026] 3. By setting the mounting block, rotating motor, transmission gear and reversing gear, after the rotating motor on the mounting block is started, the reversing gear is engaged therein, driving all the transmission gears to rotate synchronously in the same direction, thereby driving the correction rollers to rotate synchronously in the same direction to correct the cardboard. The operation is simple and convenient, and the convenience of use is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is an overall schematic diagram of an automatic paper feeding device of a carton printing machine provided in an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view used to show the internal structure of the body.

[0029] Figure 3 It is a cross-sectional view used to show the internal structure of the sprocket cavity.

[0030] Figure 4 It is a cross-sectional view used to reflect the internal structure of the gear cavity.

[0031] Figure 5 This is a control block diagram of an automatic paper feeding device of a carton printing machine provided in an embodiment of the present application.

[0032] Explanation of the accompanying symbols: 1. Machine base; 11. Conveyor trough; 12. Conveyor belt; 13. Sprocket cavity; 14. Auxiliary trough; 15. Material receiving plate; 16. Safety protection door; 17. Recycling box; 2. Mounting block; 21. Mounting trough; 211. Correction roller; 22. Gear cavity; 23. Limiting guide rail; 24. Rotating motor; 3. Controller; 31. Positioning grating scale; 32. Warning light; 4. Drive assembly; 41. Drive motor; 42. Main drive roller; 43. Auxiliary drive roller; 5. First transmission sprocket; 51. Second transmission sprocket; 52. Transmission chain; 6. Transmission assembly; 61. Transmission gear; 62. Reversing gear. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] The embodiment of the present application discloses an automatic paper feeding device for a carton printing machine. Figures 1 to 4The machine base 1 includes a conveyor belt 12. A conveyor trough 11 is provided on the surface of the machine base 1, extending through both ends. The conveyor belt 12 is rotatably mounted within the trough 11. The machine base 1 is equipped with a drive assembly 4 for driving the conveyor belt 12. The drive assembly 4 includes a drive motor 41, a main drive roller 42, and an auxiliary drive roller 43. The main drive roller 42 and the auxiliary drive roller 43 are rotatably mounted within the trough 11 at both ends, respectively. The conveyor belt 12 is sleeved over the main drive roller 42 and the auxiliary drive roller 43. The drive motor 41 is fixed to the machine base 1. The drive motor 41 shaft is inserted into the trough 11 and is coaxially fixedly connected to the main drive roller 42. A sprocket cavity 13 is provided within the machine base 1. A first drive sprocket 5 and a second drive sprocket 51 are rotatably mounted within the sprocket cavity 13. The first drive sprocket 5 is coaxially fixedly connected to the drive motor 41 shaft, while the second drive sprocket 51 is coaxially fixedly connected to the auxiliary drive roller 43. A transmission chain 52 is engaged with the first and second drive sprockets 5 and 51. A trapezoidal mounting block 2 is fixedly mounted on the side wall of the conveyor trough 11. This mounting block 2 is equipped with a mounting slot 21, within which several straightening rollers 211 are rotatably mounted. The mounting block 2 and the straightening rollers 211 are positioned above the conveyor belt 12. A rotating motor 24 is fixedly mounted on the top wall of the mounting block 2. A transmission assembly 6 is located between the rotating motor 24 and the straightening rollers 211, driving all of the straightening rollers 211. Cardboard sheets are transported along the conveyor belt 12 and aligned by the straightening rollers 211 during transport, making them easier for workers to access and transport, thereby improving the efficiency of carton printing.

[0035] To improve the convenience of use, refer to Figures 2 to 4 The base 1 is provided with a limit guide rail 23 fixedly provided on the inner wall of one side of the conveying trough 11 through a connecting rod. The limit guide rail 23 is provided parallel to the inner wall of the conveying trough 11. An auxiliary groove 14 is provided through the inner wall of the conveying trough 11 away from the limit guide rail 23. The transmission assembly 6 includes a transmission gear 61 and a reversing gear 62. The mounting block 2 is provided with a gear cavity 22. The transmission gear 61 and the reversing gear 62 are both rotatably provided in the gear cavity 22. The transmission gear 61 is coaxially fixedly connected to the correction roller 211 in a one-to-one correspondence. The reversing gear 62 is meshed and provided between two adjacent transmission gears 61. The rotating shaft of the rotating motor 24 is connected to one of the transmission gears 61. When the rotating motor 24 is started, with the cooperation of the reversing gear 62, all the transmission gears 61 are driven to rotate synchronously in the same direction, so that the correction roller 211 rotates synchronously. The operation is simple and convenient, and it is easy to use.

[0036] To improve the convenience of use, refer to Figure 1 、 Figure 2 and Figure 5A receiving plate 15 is fixedly mounted on the inner wall of the conveyor trough 11. This plate is located at the end of the machine base 1 near the straightening roller 211. A safety gate 16 is fixedly mounted on the top wall of the machine base 1, partially shielding the conveyor trough 11. A recycling bin 17 is fixedly mounted on the end of the machine base 1 away from the receiving plate 15. A positioning scale 31 is fixedly mounted on the inner wall of the recycling bin 17. The bottom wall of the positioning scale 31 is flush with the top wall of the transmission belt. The positioning scale 31 is used to measure the distance and position of the cardboard. The machine base 1 is equipped with a controller 3 connected to the positioning scale 31. A warning light 32 is fixedly mounted on the side wall of the machine base 1 where the auxiliary trough 14 is located. The controller 3 is used to control the warning light 32 to flash based on the measurement results of the positioning scale 31. The safety gate 16, installed for safety reasons, blocks the view. The cardboard's moving position is measured by the positioning scale 31. When the cardboard moves to the auxiliary trough 14, the controller 3 controls the warning light 32 to flash, reminding the staff to remove the cardboard, improving user convenience.

[0037] In the embodiment of the present application, in order to improve the overall performance, the main control unit of the controller 3 adopts a high-performance PLC controller with strong anti-interference ability and computing speed; the drive motor 41 adopts a servo motor with moderate power (5kW-7.5kW), which responds quickly and has a repeated positioning accuracy of ≤±0.05mm; the conveyor belt 12 is made of wear-resistant and high-temperature resistant rubber material with an anti-slip texture on the surface; the wheel diameter range of the correction roller 211 is 40mm-60mm, and different specifications can be replaced according to actual needs; the positioning grating scale 31 has an accuracy of μm level, and the maximum measuring range is not less than 1000mm.

[0038] The implementation principle of the automatic paper feeding device of a carton printing machine in the embodiment of the present application is as follows: starting the driving motor 41 drives the main driving roller 42 to rotate, and drives the auxiliary driving roller 43 to rotate with the cooperation of the sprocket chain, thereby driving the conveyor belt 12 to rotate, thereby driving the cardboard that falls on the conveyor belt 12 through the receiving plate 15 to move, and at the same time starting the rotating motor 24, and under the drive of the transmission component 6, drives the correction roller 211 to rotate, so that the cardboard is inserted between the limiting guide rail 23 and the inner wall of the conveying trough 11, thereby adjusting the posture of the cardboard, when the cardboard moves to the auxiliary trough 14, the measurement value of the positioning grating ruler 31 is less than the set value, and the controller 3 controls the warning light 32 to flash to remind the staff. At this time, the staff can take out the cardboard for use through the auxiliary trough 14, and the staff does not need to manually move the cardboard, so there is no need to stop the printing action for a long time, thereby improving the efficiency of carton printing.

[0039] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An automatic paper feeding device for a carton printing machine, characterized by: The invention comprises a machine base (1) and a conveyor belt (12) rotatably arranged on the machine base (1); the machine base (1) is provided with a driving assembly (4); the driving assembly (4) is used to drive the conveyor belt (12) to operate; when the machine base (1) rotates, a correction roller (211) is provided; the correction roller (211) is rotatably arranged above the conveyor belt (12).

2. The automatic paper feeding device of a carton printing machine according to claim 1, characterized in that: The driving assembly (4) comprises a driving motor (41), a main driving roller (42) and an auxiliary driving roller (43); the machine base (1) is provided with a conveying groove (11); the main driving roller (42) and the auxiliary driving roller (43) are both rotatably arranged in the conveying groove (11); the conveyor belt (12) is rotatably arranged in the conveying groove (11) and is wound around the main driving roller (42) and the auxiliary driving roller (43); the driving motor (41) is provided on the machine base (1); and the rotating shaft of the driving motor (41) is connected to the main driving roller (42).

3. The automatic paper feeding device of a carton printing machine according to claim 2, characterized in that: The main driving roller (42) is provided with a first transmission sprocket (5), the auxiliary driving roller (43) is provided with a second transmission sprocket (51), and the engaging sleeves on the first transmission sprocket (5) and the second transmission sprocket (51) are provided with a transmission chain (52).

4. The automatic paper feeding device of a carton printing machine according to claim 1, characterized in that: The machine base (1) is provided with a positioning grating ruler (31) and a controller (3) connected by signals. The positioning grating ruler (31) is used to measure the travel distance and position of the cardboard. The machine base (1) is provided with a warning light (32) connected by signals to the controller (3). The controller (3) is used to control the flashing of the warning light (32) according to the measurement result of the positioning grating ruler (31).

5. The automatic paper feeding device of a carton printing machine according to claim 1, characterized in that: The machine base (1) is provided with a mounting block (2), the correction roller (211) is rotatably mounted on the mounting block (2), the mounting block (2) is provided with a rotating motor (24), and the rotating shaft of the rotating motor (24) is connected to the correction roller (211).

6. The automatic paper feeding device of a carton printing machine according to claim 5, characterized in that: A plurality of the correction rollers (211) are provided, a transmission assembly (6) is provided between the rotating motor (24) and the correction rollers (211), the transmission assembly (6) is used to drive the correction rollers (211) to rotate, and the machine base (1) is provided with a limiting guide rail (23), and the limiting guide rail (23) is provided above the conveyor belt (12).

7. The automatic paper feeding device of a carton printing machine according to claim 6, characterized in that: The transmission assembly (6) comprises a transmission gear (61) and a reversing gear (62), both of which are rotatably mounted on the mounting block (2), the transmission gear (61) being connected to the correction roller (211), the reversing gear (62) being meshed and arranged between two adjacent transmission gears (61), and the rotating shaft of the rotating motor (24) being connected to one of the transmission gears (61).

8. The automatic paper feeding device of a carton printing machine according to claim 1, characterized in that: The machine base (1) is rotatably provided with a safety protection door (16), and the machine base (1) is provided with a recovery box (17).

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