A continuous labeling machine for carton production

Abstract

This utility model discloses a continuous labeling machine for producing packaging cartons, relating to the technical field of carton production equipment. The continuous labeling machine includes an L-shaped support, with a first motor fixedly mounted on the rear side of the L-shaped support. A drive roller and a driven roller are rotatably mounted on the front side of the L-shaped support. Moving wheels are fitted onto the outer walls of the drive roller and the driven roller. The output shaft of the first motor is fixedly mounted to one end of the drive roller. This continuous labeling machine for producing packaging cartons allows for flexible adjustment of the height of the guide plate and labeling mechanism through an adjustment component. Combined with the sliding adjustment functions of the guide rod of the limiting component and the first and second side plates, it can adapt to cartons of different heights and widths, solving the limitation of traditional equipment on carton dimensions. The pressure sensor of the tensioning component monitors the label tension in real time, and the electric push rod automatically adjusts the position of the tensioning roller to prevent labels from being too loose and wrinkled or too tight and breaking, ensuring flat and firm labeling and improving labeling quality.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box production equipment technology, and in particular to a continuous labeling machine for producing packaging cardboard boxes. Background Technology

[0002] Packaging cartons are paper containers widely used in logistics, warehousing, and commodity distribution. Their main functions include protecting products, facilitating storage and transportation, and promoting sales. Depending on the material and structure, cartons can be divided into corrugated cartons, single-layer cardboard boxes, and other types. After packaging products, cartons typically require labeling machines to affix labels to their surface.

[0003] For example, Chinese patent document CN219770394U discloses a carton labeling machine, which includes a conveyor body and a casing. Support columns are fixedly installed on both sides of the top of the conveyor body. The conveyor body is fixedly connected to both sides of the casing via four support columns. Connecting plates are rotatably connected to the bottom of both sides of the casing via pins. A pressure roller located at the rear of the casing is rotatably installed between two connecting plates. Slide rails are fixedly installed on both sides of the top of the casing. Roller seats are slidably connected to both slide rails. A material roller is installed between two roller seats. A labeling plate, two guide wheels, and a winding roller are rotatably installed inside the casing. The pressure roller rolls the labels affixed to the cartons, improving the label adhesion effect. A drive cylinder and two limit cylinders work together to move the material roller to the front end of the casing and into a vertical position, facilitating label replacement operations and improving work efficiency.

[0004] The labeling machine described above can only label certain types of cartons. If the size of the cartons changes (becomes larger or smaller), it cannot achieve compatibility. Utility Model Content

[0005] The purpose of this invention is to provide a continuous labeling machine for producing packaging cartons, so as to solve the problems and defects mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a continuous labeling machine for producing packaging cartons, comprising an L-shaped bracket, a first motor fixedly mounted on the rear side of the L-shaped bracket, a drive roller and a driven roller rotatably mounted on the front side of the L-shaped bracket, movable wheels sleeved on the outer walls of the drive roller and the driven roller, an output shaft of the first motor fixedly mounted to one end of the drive roller, a slide groove provided on the L-shaped bracket, a guide plate slidably mounted in the slide groove, a control panel fixedly mounted on the rear side of the L-shaped bracket, a labeling mechanism mounted on the guide plate, a labeling sticker being provided on the labeling mechanism, the labeling mechanism being used to label cartons during movement, a tensioning component mounted on the front side of the guide plate, the tensioning component being used to adjust the tension of the labeling sticker, a limiting component mounted on the front side of the L-shaped bracket, the limiting component being used to limit the traveling direction of the cartons, and an adjusting component mounted between the L-shaped bracket and the guide plate, the adjusting component being used to adjust the working height of the first motor and the labeling mechanism.

[0007] Preferably, the labeling mechanism includes a second motor, an unwinding roller, a third motor, a take-up roller, a first positioning roller, a second positioning roller, a peeling plate, and a third positioning roller. The second motor and the third motor are both fixedly installed on the rear side of the guide plate. The unwinding roller, the take-up roller, the first positioning roller, the second positioning roller, and the third positioning roller are all rotatably installed on the front side of the guide plate. The output shaft of the second motor is fixedly installed at one end of the unwinding roller, and the output shaft of the third motor is fixedly installed at one end of the take-up roller. The peeling plate is fixedly installed on the front side of the guide plate. The label is sleeved on the unwinding roller and the take-up roller, and the label is wrapped around the outer wall of the first positioning roller, the second positioning roller, the peeling plate, and the third positioning roller.

[0008] Preferably, the tensioning assembly includes a tensioning roller, a fixed plate, an electric push rod, a pressure sensor, and a roller frame. The fixed plate is fixedly installed on the front side of the guide plate, the electric push rod is fixedly installed on the fixed plate, the pressure sensor is fixedly installed on the free end of the electric push rod, the roller frame is fixedly installed on one side of the outer wall of the pressure sensor, and the tensioning roller is rotatably installed on the front and rear sides of the roller frame. The tensioning roller is in contact with the label sticker and automatically adjusts the position of the tensioning roller to prevent the label from being too loose and wrinkled or too tight and broken, ensuring that the label is applied flat and firmly, and improving the labeling quality.

[0009] Preferably, the limiting component includes guide rods, a first side plate, and a second side plate. There are two guide rods, both of which are fixedly installed on the front side of the L-shaped bracket. The first side plate and the second side plate are slidably installed on the two guide rods. The first side plate and the second side plate are arranged symmetrically front and back, which can stably limit the movement trajectory of the carton, ensure smooth label feeding, effectively avoid label deviation, and improve labeling accuracy.

[0010] Preferably, the adjustment assembly includes a threaded rod and a crank handle. The threaded rod is rotatably mounted on the bottom of the slide groove, and the crank handle is fixedly mounted on the top of the threaded rod. The guide plate is threaded onto the outer wall of the threaded rod, which can flexibly adjust the height of the guide plate and the labeling mechanism, and can adapt to cartons of different heights and widths, thus solving the problem of traditional equipment limiting the size of cartons.

[0011] Preferably, a fixing sleeve is fixedly installed on the adjacent side wall of the first side plate and the second side plate, and a bolt is threaded on the top of the fixing sleeve.

[0012] Preferably, both the unwinding roller and the rewinding roller are threaded with nuts to facilitate quick replacement of label rolls.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This continuous labeling machine for packaging cartons can flexibly adjust the height of the guide plate and labeling mechanism through the adjustment components. With the help of the limit component guide rod and the sliding adjustment function of the first side plate and the second side plate, it can adapt to cartons of different heights and widths, solving the problem of the limitation of carton size by traditional equipment.

[0015] The symmetrical arrangement of the first and second side plates of the limiting component can stably restrict the carton's travel trajectory. The cooperation of multiple positioning rollers and peeling plates in the labeling mechanism ensures smooth label feeding, effectively avoids label deviation, and improves labeling accuracy.

[0016] The nut design of the unwind and rewind rollers facilitates quick label roll replacement, and the control panel integrates multi-device control, simplifying the operation process and improving production efficiency. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure on the other side;

[0020] Figure 3 This is a schematic diagram of the labeling mechanism of this utility model.

[0021] Reference numerals: 1. L-shaped bracket; 2. First motor; 3. Driven roller; 4. Driven roller; 5. Moving wheel; 6. Guide plate; 7. Second motor; 8. Unwinding roller; 9. Third motor; 10. Rewinding roller; 11. First positioning roller; 12. Second positioning roller; 13. Peeling plate; 14. Third positioning roller; 15. Label sticker; 16. Tensioning roller; 17. Fixing plate; 18. Electric push rod; 19. Pressure sensor; 20. Roller frame; 21. Threaded rod; 22. Crank handle; 23. Control panel; 24. Guide rod; 25. First side plate; 26. Second side plate. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Please see Figure 1-3 This utility model provides a technical solution: a continuous labeling machine for packaging carton production, including an L-shaped bracket 1, a first motor 2 fixedly mounted on the rear side of the L-shaped bracket 1, a driving roller 3 and a driven roller 4 rotatably mounted on the front side of the L-shaped bracket 1, movable wheels 5 sleeved on the outer walls of the driving roller 3 and the driven roller 4, the output shaft of the first motor 2 fixedly mounted to one end of the driving roller 3, a sliding groove provided on the L-shaped bracket 1, a guide plate 6 slidably mounted in the sliding groove, and a control panel 23 fixedly mounted on the rear side of the L-shaped bracket 1. When the first motor 2 is started, the output shaft of the first motor 2 drives the driving roller 3 to rotate. The rotation drives the movable wheel 5 to move, thereby enabling the transportation of the cardboard boxes placed on the movable wheel 5. It also includes a labeling mechanism installed on the guide plate 6, which is equipped with a label sticker 15. The labeling mechanism is used to label the cardboard boxes during the movement. A tensioning component is installed on the front side of the guide plate 6 to adjust the tension of the label sticker 15. A limiting component is installed on the front side of the L-shaped bracket 1 to limit the travel direction of the cardboard boxes. An adjustment component is installed between the L-shaped bracket 1 and the guide plate 6 to adjust the working height of the first motor 2 and the labeling mechanism.

[0024] Furthermore, the labeling mechanism includes a second motor 7, an unwinding roller 8, a third motor 9, a take-up roller 10, a first positioning roller 11, a second positioning roller 12, a peeling plate 13, and a third positioning roller 14. The second motor 7 and the third motor 9 are both fixedly mounted on the rear side of the guide plate 6. The unwinding roller 8, the take-up roller 10, the first positioning roller 11, the second positioning roller 12, and the third positioning roller 14 are all rotatably mounted on the front side of the guide plate 6. The output shaft of the second motor 7 is fixedly mounted to one end of the unwinding roller 8, and the output shaft of the third motor 9 is fixedly mounted to one end of the take-up roller 10. The peeling plate 13 is fixedly mounted on the guide plate 6. On the front side of plate 6, label sticker 15 is sleeved on unwinding roller 8 and rewinding roller 10, and label sticker 15 is wrapped around the outer wall of first positioning roller 11, second positioning roller 12, peeling plate 13, and third positioning roller 14. The second motor 7 is started, and the output shaft of the second motor 7 drives the unwinding roller 8 to rotate. The rotation of the unwinding roller 8 unwinds the label sticker 15. The third motor 9 is started, and the third motor 9 drives the rewinding roller 10 to rotate. The rotation of the rewinding roller 10 rewinds the label sticker 15. During the movement of the label sticker 15, the label on the label sticker 15 will be pasted on the top of the carton, realizing labeling.

[0025] Furthermore, the tensioning assembly includes a tensioning roller 16, a fixing plate 17, an electric push rod 18, a pressure sensor 19, and a roller frame 20. The fixing plate 17 is fixedly installed on the front side of the guide plate 6, the electric push rod 18 is fixedly installed on the fixing plate 17, the pressure sensor 19 is fixedly installed on the free end of the electric push rod 18, and the roller frame 20 is fixedly installed on one side of the outer wall of the pressure sensor 19. The tensioning roller 16 is rotatably installed on the front and rear sides of the roller frame 20, and the tensioning roller 16 is in contact with the label sticker 15. The position of the tensioning roller is automatically adjusted to prevent the label from being too loose and wrinkled or too tight and broken, ensuring that the label is applied flat and firmly, and improving the labeling quality.

[0026] Furthermore, the limiting component includes guide rods 24, a first side plate 25, and a second side plate 26. There are two guide rods 24, both of which are fixedly installed on the front side of the L-shaped bracket 1. The first side plate 25 and the second side plate 26 are slidably installed on the two guide rods 24. The first side plate 25 and the second side plate 26 are arranged symmetrically front and back, which can stably limit the carton's travel trajectory, ensure smooth label feeding, effectively avoid label offset, and improve labeling accuracy.

[0027] Furthermore, the adjustment assembly includes a threaded rod 21 and a crank 22. The threaded rod 21 is rotatably mounted at the bottom of the slide, and the crank 22 is fixedly mounted at the top of the threaded rod 21. The guide plate 6 is threaded onto the outer wall of the threaded rod 21. The crank 22 is manually turned, which drives the threaded rod 21 to rotate. The rotation of the threaded rod 21 drives the first motor 2 and the labeling mechanism to rise and fall. The height of the guide plate and the labeling mechanism can be flexibly adjusted, which can adapt to cartons of different heights and widths, thus solving the problem of the limitation of traditional equipment on the size of cartons.

[0028] Furthermore, a fixing sleeve is fixedly installed on the adjacent side wall of the first side plate 25 and the second side plate 26, and a bolt is threaded on the top of the fixing sleeve.

[0029] Furthermore, both the unwinding roller 8 and the take-up roller 10 are threaded with nuts for easy and quick replacement of label rolls.

[0030] Working principle: The first motor 2 is started via control panel 23. The output shaft of the first motor 2 drives the drive roller 3 to rotate, which in turn moves the movable wheel 5, thus transporting the cartons placed on the movable wheel 5. Then, the second motor 7 is started, and its output shaft drives the unwind roller 8 to rotate, unwinding the label sticker 15. Next, the third motor 9 is started, driving the take-up roller 10 to rotate, rewinding the label sticker 15. During this movement, the label sticker 15 adheres to the top of the cartons, achieving labeling. Manually turning the crank handle 22 drives the threaded rod 21 to rotate, which in turn... The first motor 2 and the labeling mechanism are raised and lowered, enabling labeling of cartons of any size. By pushing the first side plate 25 and the second side plate 26, the direction of travel of the cartons can be limited, ensuring that the labels can be accurately pasted on the cartons. When the label sticker 15 is tight, the pressure sensor 19 will detect that the pressure applied by the label sticker 15 to the tension roller 16 and the roller frame 20 is large, and the control panel 23 will activate the free end of the electric push rod 18 to retract, loosening the label sticker 15. When the label sticker 15 is loose, the pressure sensor 19 will detect that the pressure applied by the label sticker 15 to the tension roller 16 and the roller frame 20 is small, and the control panel 23 will activate the free end of the electric push rod 18 to extend, tightening the label sticker 15.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A continuous labeling machine for producing packaging cartons, comprising an L-shaped bracket (1), a first motor (2) fixedly mounted on the rear side of the L-shaped bracket (1), a drive roller (3) and a driven roller (4) rotatably mounted on the front side of the L-shaped bracket (1), movable wheels (5) sleeved on the outer walls of the drive roller (3) and the driven roller (4), the output shaft of the first motor (2) fixedly mounted to one end of the drive roller (3), a groove provided in the L-shaped bracket (1), a guide plate (6) slidably mounted in the groove, and a control panel (23) fixedly mounted on the rear side of the L-shaped bracket (1), characterized in that, Also includes: The labeling mechanism is installed on the guide plate (6) and is equipped with label stickers (15). The labeling mechanism is used to label the cartons during the movement process. A tensioning assembly is installed on the front side of the guide plate (6) and is used to adjust the tension of the label sticker (15); A limiting component is installed on the front side of the L-shaped bracket (1). The limiting component is used to limit the direction of travel of the carton. An adjustment assembly is installed between the L-shaped bracket (1) and the guide plate (6). The adjustment assembly is used to adjust the working height of the first motor (2) and the labeling mechanism.

2. The continuous labeling machine for producing packaging cartons according to claim 1, characterized in that: The labeling mechanism includes a second motor (7), an unwinding roller (8), a third motor (9), a take-up roller (10), a first positioning roller (11), a second positioning roller (12), a peeling plate (13), and a third positioning roller (14). The second motor (7) and the third motor (9) are both fixedly installed on the rear side of the guide plate (6). The unwinding roller (8), the take-up roller (10), the first positioning roller (11), the second positioning roller (12), and the third positioning roller (14) are all rotatably installed on the front side of the guide plate (6). The output shaft of the second motor (7) is fixedly installed on one end of the unwinding roller (8), and the output shaft of the third motor (9) is fixedly installed on one end of the take-up roller (10). The peeling plate (13) is fixedly installed on the front side of the guide plate (6). The label sticker (15) is sleeved on the unwinding roller (8) and the take-up roller (10), and the label sticker (15) is wrapped around the outer wall of the first positioning roller (11), the second positioning roller (12), the peeling plate (13), and the third positioning roller (14).

3. A continuous labeling machine for producing packaging cartons according to claim 2, characterized in that: The tensioning assembly includes a tensioning roller (16), a fixing plate (17), an electric push rod (18), a pressure sensor (19), and a roller frame (20). The fixing plate (17) is fixedly installed on the front side of the guide plate (6), the electric push rod (18) is fixedly installed on the fixing plate (17), the pressure sensor (19) is fixedly installed on the free end of the electric push rod (18), the roller frame (20) is fixedly installed on one side of the outer wall of the pressure sensor (19), and the tensioning roller (16) is rotatably installed on the front and rear sides of the roller frame (20), and the tensioning roller (16) is in contact with the label sticker (15).

4. A continuous labeling machine for producing packaging cartons according to claim 3, characterized in that: The limiting assembly includes a guide rod (24), a first side plate (25), and a second side plate (26). There are two guide rods (24), both of which are fixedly installed on the front side of the L-shaped bracket (1). The first side plate (25) and the second side plate (26) are slidably installed on the two guide rods (24). The first side plate (25) and the second side plate (26) are arranged symmetrically front and back.

5. A continuous labeling machine for producing packaging cartons according to claim 4, characterized in that: The adjustment assembly includes a threaded rod (21) and a crank (22). The threaded rod (21) is rotatably mounted on the bottom of the slide groove, and the crank (22) is fixedly mounted on the top of the threaded rod (21). The guide plate (6) is threadedly mounted on the outer wall of the threaded rod (21).

6. A continuous labeling machine for producing packaging cartons according to claim 5, characterized in that: The adjacent side walls of the first side plate (25) and the second side plate (26) are fixedly installed with fixing sleeves, and the top of the fixing sleeves is threaded with bolts.

7. A continuous labeling machine for producing packaging cartons according to claim 6, characterized in that: Both the unwinding roller (8) and the winding roller (10) are threaded with nuts.

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