Automatic labeling device for packaging boxes

Abstract

The utility model provides a kind of packing box automatic labeling device, and the device includes conveying mechanism, label supply mechanism and labeling execution mechanism. Conveying mechanism intermittent conveying packing box to labeling station, ensure accurate positioning;Label supply mechanism is set to one side, through label reel, guide component, peeling angle and rewinding roller cooperative work, realize the accurate peeling and stable conveying of label from release paper;Peeling angle is driven by peeling cylinder, cooperate with the structure of guide port, send label to the label taking position, and through the through-hole on the material taking surface, it is convenient for suction nozzle adsorption. Labeling execution mechanism is across above conveying mechanism, and multiple degrees of freedom accurate positioning is realized using transverse and longitudinal linear motor, and the labeling angle is adjusted in combination with rotary cylinder, to ensure that it adapts to different labeling requirements. Especially, a camera driven by visual detection cylinder is provided above the peeling angle, which can detect the position, posture and surface defects of the label in real time before labeling, to improve the labeling quality consistency.

Description

Technical Field

[0001] This utility model relates to the field of labeling device technology, and in particular to an automatic labeling device for packaging boxes. Background Technology

[0002] With the continuous improvement of industrial automation, packaging production lines are placing higher demands on the efficiency, accuracy, and stability of labeling processes. Traditional manual labeling methods suffer from drawbacks such as high labor intensity, inconsistent label placement, and susceptibility to errors, making them unsuitable for modern large-scale production. Although various automated labeling devices have emerged, most still employ continuous label feeding or fixed peeling structures, which are prone to label placement deviations due to uneven label tension or accumulated mechanical errors, affecting product appearance quality. Furthermore, some devices lack detection methods for label posture, integrity, and surface defects after label peeling, failing to promptly identify and remove abnormal labels, leading to defective products flowing into subsequent processes. Utility Model Content

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide an automatic labeling device for packaging boxes, which solves the problems of low label peeling and positioning accuracy, poor labeling adaptability, and lack of pre-labeling quality inspection function in the prior art, resulting in large labeling position deviation.

[0004] To achieve the above and other related objectives, this utility model provides the following technical solution:

[0005] An automatic labeling device for packaging boxes includes: a conveying mechanism, a label supply mechanism, and a labeling execution mechanism; the conveying mechanism is arranged horizontally and is used to intermittently convey packaging boxes to be labeled to a predetermined labeling station; the label supply mechanism is located on one side of the conveying mechanism and includes a label roll, a guide assembly, and a peeling mechanism, used to peel continuously arranged labels from the release paper and convey the labels to the label picking position of the labeling execution mechanism through the peeling mechanism; the labeling execution mechanism spans above the conveying mechanism and includes a driving device, an angle adjustment assembly, and a labeling assembly, used to transfer the label from the label picking position and affix it to the target area on the surface of the packaging box when the packaging box passes through the labeling station.

[0006] To achieve the above technical solution, the automatic labeling device for packaging boxes intermittently delivers packaging boxes to the labeling station via a conveying mechanism, ensuring accurate positioning. The label supply mechanism releases label tape from the label roll, which, after being guided by a guide component, automatically separates from the release paper at the peeling mechanism, and then transports the exposed label to the label-taking position. The labeling execution mechanism, driven by a drive unit, adjusts the posture of the labeling component via an angle adjustment component to adapt to different labeling angle requirements. When the packaging box arrives at the station, the labeling component precisely transfers and affixes the label to the target area. This device structure achieves high-precision, automated label application.

[0007] In one embodiment of the present invention, the labeling execution mechanism includes a transverse linear motor arranged parallel to the conveying mechanism and a longitudinal linear motor arranged on the transverse linear motor;

[0008] The angle adjustment assembly includes a mounting bracket on the longitudinal linear motor slide and a rotary cylinder at the lower end of the mounting bracket; the labeling assembly includes a mounting plate on the rotary cylinder turntable and a plurality of suction nozzles on the mounting plate.

[0009] To achieve the above technical solution, the labeling actuator uses the coordinated movement of a horizontal linear motor and a vertical linear motor to achieve precise positioning of the labeling component in a horizontal plane, which can adapt to the labeling needs of different positions. The rotary cylinder in the angle adjustment component is mounted on the slide of the vertical linear motor and fixed by the mounting bracket. It can drive the mounting plate below to rotate in angle, thereby adjusting the labeling posture. Multiple suction nozzles on the mounting plate can simultaneously pick up the label and ensure its flat transfer. During labeling, the label is stably released by controlling the air flow of the suction nozzles.

[0010] In one embodiment of the present invention, the peeling mechanism includes a peeling angle, a peeling cylinder for driving the peeling angle to the label taking position, a winding roller for winding the release paper, and a plurality of transition rollers disposed between the peeling angle and the winding roller.

[0011] To achieve the above technical solution, the peeling mechanism is driven by a peeling cylinder to move the peeling angle to the label taking position. After the label tape is drawn out from the label roll, the front end of the label moves forward with the peeling angle and is pulled to the label taking position below the labeling head. At this time, the label and the release paper are separated at the tip of the peeling angle. This structure uses pneumatic drive combined with precise mechanical positioning to achieve intermittent and precise peeling and positioning of the label.

[0012] In one embodiment of the present invention, the peeling angle includes two parallel guide surfaces, a material-taking surface connected to the upper ends of the two guide surfaces, a guide opening opened at the upper end of the guide surfaces for the release paper to pass through, and two guide rollers connected between the two guide surfaces; a through hole is provided on the material-taking surface.

[0013] To achieve the above technical solution, the peeling angle forms a stable label tape travel channel through two parallel guide surfaces. The release paper enters from the guide opening at the front end of the guide surface, passes around the guide roller inside, and is then led out in the opposite direction to the take-up roller. The label extends to the label taking station along with the material taking surface. When the peeling cylinder drives the peeling angle to move forward, the material taking surface drives the label to move forward as a whole and detach from the release paper, achieving precise peeling. The through hole opened on the material taking surface facilitates the suction nozzle on the labeling assembly to approach the through hole and adsorb the label.

[0014] In one embodiment of the present invention, a visual inspection cylinder is provided above the peeling angle, and a camera is provided on the piston rod of the visual inspection cylinder.

[0015] To achieve the above technical solution, a visual inspection cylinder is provided above the peeling angle, and a camera is mounted on the piston rod of the visual inspection cylinder; the visual inspection cylinder drives the camera to move downward and approach the label surface, and performs real-time detection of the label's position, angle, integrity, and whether there are defects such as wrinkles, damage, or missing prints through high-resolution imaging.

[0016] In one embodiment of the present invention, the guiding assembly includes a plurality of guiding rollers disposed between the label roll and the peeling angle.

[0017] To achieve the above technical solution, the guiding assembly includes several guide rollers disposed between the label roll and the peel angle, used to guide the label tape to be smoothly conveyed along a predetermined path. These guide rollers are reasonably distributed in the label travel path, effectively controlling the direction of the label tape and preventing it from deviating, twisting, or wrinkling during conveying.

[0018] As described above, the automatic labeling device for packaging boxes of this utility model has the following beneficial effects: This device achieves intermittent and precise positioning of the packaging boxes through a conveying mechanism. Combined with the guide rollers, peeling angle, and winding system in the label supply mechanism, it ensures smooth operation of the label tape and achieves precise intermittent peeling, effectively avoiding deviation and damage. The labeling execution mechanism uses horizontal and vertical linear motors in conjunction with rotary cylinders to achieve high-precision motion control of the labeling components under multiple degrees of freedom, adapting to labeling requirements at different positions and angles. Multiple suction nozzles work together to ensure flat and reliable label transfer. In particular, a camera driven by a vision inspection cylinder is integrated above the peeling angle, which can detect the label position, posture, and surface defects in real time before labeling, significantly improving the consistency of labeling quality. The overall device has a compact structure and a high degree of automation, making it suitable for the efficient and continuous production of packaging boxes of various specifications. Attached Figure Description

[0019] Figure 1 The diagram shown is a structural schematic of this utility model.

[0020] Figure 2 The diagram shows the structure of the labeling actuator.

[0021] Figure 3 The diagram shows the structure of the label supply organization.

[0022] Figure 4 The diagram shows the structure with the peel angle.

[0023] Component designation explanation

[0024] 1. Conveying mechanism; 2. Label roll; 3. Horizontal linear motor; 4. Longitudinal linear motor; 5. Mounting bracket; 6. Rotary cylinder; 7. Mounting plate; 8. Suction nozzle; 9. Peeling angle; 10. Peeling cylinder; 11. Take-up roller; 12. Transition roller; 13. Guide surface; 14. Material picking surface; 15. Guide opening; 16. Guide roller; 17. Through hole; 18. Vision inspection cylinder; 19. Camera; 20. Guide roller. Detailed Implementation

[0025] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.

[0026] Please see Figures 1 to 4 This utility model provides an automatic labeling device for packaging boxes, including a conveying mechanism 1, a label supply mechanism, and a labeling execution mechanism. The conveying mechanism 1 is arranged horizontally and is used to intermittently convey packaging boxes to be labeled to a predetermined labeling station. The label supply mechanism is arranged on one side of the conveying mechanism 1 and includes a label roll 2, a guide assembly, and a peeling mechanism, used to peel continuously arranged labels from the release paper and convey the labels to the label picking position of the labeling execution mechanism through the peeling mechanism. The labeling execution mechanism spans above the conveying mechanism 1 and includes a driving device, an angle adjustment assembly, and a labeling assembly, used to transfer the label from the label picking position and attach it to the target area on the surface of the packaging box when the packaging box passes through the labeling station.

[0027] The automatic labeling device for packaging boxes intermittently delivers packaging boxes to the labeling station via a conveyor mechanism 1, ensuring accurate positioning. The label roll 2 in the label supply mechanism releases label tape, which, after being guided by a guide component, automatically separates from the release paper at the peeling mechanism, and the exposed label is then conveyed to the label picking position. The labeling execution mechanism, driven by a drive unit, adjusts the posture of the labeling component via an angle adjustment component to adapt to different labeling angle requirements. When the packaging box arrives at the station, the labeling component precisely transfers and affixes the label to the target area. This device structure achieves high-precision, automated label application.

[0028] The labeling actuator includes a transverse linear motor 3 arranged parallel to the conveying mechanism 1 and a longitudinal linear motor 4 arranged on the transverse linear motor 3; the angle adjustment assembly includes a mounting bracket 5 arranged on the slide of the longitudinal linear motor 4 and a rotary cylinder 6 arranged at the lower end of the mounting bracket 5; the labeling assembly includes a mounting plate 7 arranged on the turntable of the rotary cylinder 6 and a plurality of suction nozzles 8 arranged on the mounting plate 7.

[0029] The labeling actuator achieves precise positioning of the labeling component in the horizontal plane through the coordinated movement of the horizontal linear motor 3 and the vertical linear motor 4, which can adapt to the labeling needs of different positions. The rotary cylinder 6 in the angle adjustment component is installed on the slide of the vertical linear motor 4 and fixed by the mounting bracket 5. It can drive the mounting plate 7 below to rotate in angle, thereby adjusting the labeling posture. Multiple suction nozzles 8 on the mounting plate 7 can simultaneously pick up the label and ensure its flat transfer. During labeling, the label is stably released by controlling the air supply and de-air supply of the suction nozzles 8.

[0030] The peeling mechanism includes a peeling angle 9, a peeling cylinder 10 that drives the peeling angle 9 to the label taking position, a take-up roller 11 for winding up the release paper, and a plurality of transition rollers 12 disposed between the peeling angle 9 and the take-up roller 11.

[0031] The peeling mechanism is driven by the peeling cylinder 10 to move the peeling angle 9 to the label taking position. After the label tape is drawn out from the label roll 2, the front end of the label moves forward with the peeling angle 9 and is pulled to the label taking position below the labeling head. At this time, the label and the release paper are separated at the tip of the peeling angle 9. This structure uses pneumatic drive combined with precise mechanical positioning to realize the intermittent and precise peeling and positioning of the label.

[0032] The peeling angle 9 includes two parallel guide surfaces 13, a material taking surface 14 connected to the upper end of the two guide surfaces 13, a guide opening 15 opened at the front end of the guide surface 13 for the release paper to pass through, and two guide rollers 16 connected between the two guide surfaces 13; the material taking surface 14 is provided with a through hole 17.

[0033] The peeling angle 9 forms a stable label tape travel channel through two parallel guide surfaces 13. The release paper enters from the guide opening 15 at the front end of the guide surface 13, passes around the guide roller 16 inside, and is then pulled out in the opposite direction to the take-up roller 11. The label extends to the label taking station along with the material taking surface 14. When the peeling cylinder 10 drives the peeling angle 9 to move forward, the material taking surface 14 drives the label to move forward as a whole and detach from the release paper, achieving precise peeling. The through hole 17 opened on the material taking surface 14 makes it easy for the suction nozzle 8 on the labeling assembly to come close to the through hole 17 to adsorb the label.

[0034] A visual inspection cylinder 18 is located above the peeling angle 9, and a camera 19 is mounted on the piston rod of the visual inspection cylinder 18. The visual inspection cylinder 18 drives the camera 19 to move downwards and closer to the label surface, and performs real-time detection of the label's position, angle, integrity, and whether there are defects such as wrinkles, damage, or missing prints through high-resolution imaging.

[0035] The guiding assembly includes a plurality of guide rollers 20 disposed between the label roll 2 and the peel angle 9. These guide rollers 20 are used to guide the label tape smoothly along a predetermined path. These guide rollers 20 are rationally distributed in the label travel path, effectively controlling the direction of the label tape and preventing it from shifting, twisting, or wrinkling during transport.

[0036] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. All equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An automatic labeling device for packaging boxes, characterized in that, include: Conveying mechanism, label supply mechanism, and labeling execution mechanism; The conveying mechanism is arranged horizontally and is used to intermittently transport the packaging boxes to be labeled to the predetermined labeling station; The label supply mechanism is located on one side of the conveying mechanism and includes a label roll, a guide assembly, and a peeling mechanism. It is used to peel the continuously arranged labels from the release paper and to convey the labels to the labeling execution mechanism's label picking position via the peeling mechanism. The labeling execution mechanism spans above the conveying mechanism and includes a drive device, an angle adjustment component, and a labeling component. It is used to transfer the label from the label picking position and affix it to the target area on the surface of the packaging box when the packaging box passes through the labeling station.

2. The automatic labeling device for packaging boxes according to claim 1, characterized in that: The labeling actuator includes a transverse linear motor arranged parallel to the conveying mechanism and a longitudinal linear motor arranged on the transverse linear motor; The angle adjustment assembly includes a mounting bracket disposed on the longitudinal linear motor slide and a rotary cylinder disposed at the lower end of the mounting bracket. The labeling assembly includes a mounting plate disposed on the rotary cylinder turntable and a plurality of suction nozzles disposed on the mounting plate.

3. The automatic labeling device for packaging boxes according to claim 1, characterized in that: The peeling mechanism includes a peeling angle, a peeling cylinder that drives the peeling angle to the label taking position, a take-up roller for winding the release paper, and a plurality of transition rollers disposed between the peeling angle and the take-up roller.

4. The automatic labeling device for packaging boxes according to claim 3, characterized in that: The peeling angle includes two parallel guide surfaces, a feeding surface connected to the upper end of the two guide surfaces, a guide opening opened at the upper end of the guide surfaces for the release paper to pass through, and two guide rollers connected between the two guide surfaces. The material receiving surface has through holes.

5. The automatic labeling device for packaging boxes according to claim 3, characterized in that: A visual inspection cylinder is located above the peeling angle, and a camera is mounted on the piston rod of the visual inspection cylinder.

6. The automatic labeling device for packaging boxes according to claim 1, characterized in that: The guiding assembly includes a plurality of guide rollers disposed between the label roll and the peel angle.

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