Labeling machine with detection function

Abstract

The utility model discloses a kind of labeling machines with detection function, including rack, controller, conveying mechanism, positioning clamping mechanism, labeling device, label presence / absence detection component, label peeling confirmation detection component, miss paste detection component and surface defect detection component, by setting label presence / absence detection component in the rear of material disc component, whether label is exhausted or broken can be monitored in real time, once detecting abnormality, controller can stop in time and alarm, avoid equipment in no mark state continuous operation, reduce the generation of empty paste product, reduce subsequent manual screening cost, improve production continuity;Second is that label peeling confirmation detection component is set to corresponding peeling label plate, whether label is normally peeled from backing paper can be accurately identified, if appear not completely peel (such as label remains in backing paper), controller can immediately trigger adjustment or stop, avoid wrong paste, miss paste problem caused by label, guarantee the accurate matching of label and product.

Description

Technical Field

[0001] This utility model relates to the field of labeling machines, and in particular to a labeling machine with detection function. Background Technology

[0002] Currently, during the product manufacturing process, various labels need to be affixed to the surface of the product casing, such as trademarks, energy efficiency labels, and energy-saving labels. These labels can reveal the product name, specifications, and uses, so that users can identify and purchase the product. The traditional labeling process generally involves manually tearing off the release paper of the label and then pasting the label on the corresponding position on the product. This process is cumbersome and inefficient.

[0003] With the development of technology, the emergence of labeling machines has facilitated the labeling operation of products. Automatic labeling machines are devices that can paste rolls of paper or metal foil labels onto specified packaging containers or products. The labels have adhesive on the back and are arranged regularly on the glossy backing paper. The label peeling mechanism on the labeling machine can automatically peel them off.

[0004] Traditional labeling machines often fail to detect issues like running out of label rolls or torn label paper in time, leading to continuous empty labeling. This not only wastes production time but also requires manual sorting of empty labels, increasing rework costs. When peeling the label off the backing paper, if the peeling plate angle is deviated or the label is not sticky, the equipment may produce label-on (label not detached from the backing paper) or partial peeling, which may lead to mislabeling or omission, affecting the integrity of the product label.

[0005] Therefore, it is necessary to design a new technical solution to solve the above problems. Utility Model Content

[0006] In view of this, the present invention addresses the deficiencies of the existing technology by providing a labeling machine with a detection function. This machine features a label presence / absence detection component located behind the material tray assembly, which can monitor in real time whether labels are exhausted or broken. Upon detecting an abnormality, the controller can promptly stop the machine and issue an alarm, preventing the equipment from running continuously without labels, reducing the production of unlabeled products, lowering subsequent manual screening costs, and improving production continuity. Secondly, the label peeling confirmation detection component is located corresponding to the peeling plate, accurately identifying whether the label has been properly peeled from the backing paper. If incomplete peeling occurs (such as label residue on the backing paper), the controller can immediately trigger adjustments or a shutdown, preventing mislabeling or missing labels and ensuring accurate matching between labels and products.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A labeling machine with detection function includes: frame; The controller is mounted on the rack; A conveying mechanism is mounted on a frame; the conveying mechanism includes a frame and a conveyor belt extending left and right along the frame. A positioning clamping mechanism is mounted on a frame and connected to a controller. The positioning clamping mechanism includes a first positioning clamping component and a second positioning clamping component arranged opposite to each other on the left and right sides. The first positioning clamping component and the second positioning clamping component are arranged opposite to each other in front and behind to form a clamping space for clamping the product to be labeled. A labeling device is mounted above a conveyor belt and connected to a controller, allowing it to move back and forth and up and down via a displacement adjustment mechanism. The labeling device is used to label the front of the product to be labeled. The labeling device includes at least a label head plate, a tray assembly mounted on the label head plate, a label peeling mechanism, and several rollers spaced apart. The tray assembly holds the label rolls, and the traction mechanism cooperates with the rollers to transport the label paper. The label peeling mechanism includes a peeling plate and a pressing plate inclined towards the conveyor belt. The peeling plate peels off the label, and the pressing plate presses the peeled label onto the product surface. A label presence or absence detection component is provided. The label presence or absence detection component is located behind the tray assembly and connected to the controller. The label presence or absence detection component is used to detect whether the labels to be labeled on the tray assembly are exhausted or broken. A label peeling confirmation detection component is provided corresponding to the label peeling plate and connected to the controller. The label peeling confirmation detection component is used to detect whether the label is peeled off normally from the backing paper. A missing label detection component is mounted on a frame and connected to a controller. The missing label detection component is positioned opposite to the label peeling mechanism. The missing label detection component is used to detect whether a product to be labeled has a missing label. A surface defect detection component is provided, which is located on the side of the conveyor belt near the labeling device. The surface defect detection component is used to detect whether there are bubbles, wrinkles or damage defects in the label. The surface defect detection component is connected to the controller.

[0008] As a preferred embodiment, the displacement adjustment mechanism includes a front-to-back adjustment component and a height adjustment component, wherein the height adjustment component is mounted vertically on the front-to-back adjustment component, and the labeling device is disposed on the height adjustment component; The front and rear adjustment assembly includes a first transmission rod and a first guide rod disposed around the first transmission rod. The upper end of the first transmission rod is provided with a first adjustment handle, and a first movable seat is provided on the first transmission rod. The first guide rods all pass through the front and rear surfaces of the first movable seat. The height adjustment assembly is disposed on the first movable seat. The first adjustment handle drives the first movable seat through the first transmission rod, thereby driving the labeling device to move along the first guide rod. The height adjustment assembly includes a second transmission rod, a third transmission rod, and a second guide rod disposed around the third transmission rod. The upper end of the second transmission rod is provided with a second adjustment handle, and an angle adjustment seat is provided on the second transmission rod. The third transmission rod is disposed on the angle adjustment seat via an angle adjustment shaft. The third transmission rod passes through the head plate, and the upper end of the third transmission rod is provided with a third adjustment handle. The second adjustment handle drives the angle adjustment seat to move through the second transmission rod.

[0009] As a preferred embodiment, the label presence / absence detection component includes a first mounting bracket disposed on the frame and a label presence / absence detection sensor disposed on the first mounting bracket, wherein the label presence / absence detection sensor is disposed behind the tray assembly.

[0010] As a preferred embodiment, the label peeling confirmation detection component includes a second mounting bracket and a label peeling confirmation sensor disposed on the second mounting bracket, the label peeling confirmation sensor being disposed corresponding to the label peeling plate.

[0011] As a preferred embodiment, the missing label detection component includes a third mounting bracket and a missing label detection sensor disposed on the third mounting bracket, wherein the missing label detection sensor is disposed opposite to the label peeling mechanism.

[0012] As a preferred embodiment, the surface defect detection assembly includes a fourth mounting bracket and a surface defect detection sensor disposed on the fourth mounting bracket, the surface defect detection sensor being disposed beside the labeling device.

[0013] As a preferred embodiment, the frame is also provided with a feeding area, which is located at the right end of the output end.

[0014] As a preferred embodiment, the labeling device further includes a label measuring photoelectric sensor mounted on the label head plate. The label measuring photoelectric sensor is installed on the side of the label peeling mechanism. The traction mechanism includes a traction roller and a drive motor, and the drive motor is connected to the traction roller via a synchronous belt.

[0015] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly uses a label detection component set behind the material tray assembly to monitor in real time whether the labels are exhausted or broken. Once an abnormality is detected, the controller can stop the machine and sound an alarm in time, avoiding the equipment from running continuously in a labelless state, reducing the production of empty labeled products, reducing the cost of subsequent manual screening, and improving production continuity. Secondly, the label peeling confirmation detection component is set with a corresponding label peeling plate, which can accurately identify whether the label has been properly peeled off from the backing paper. If the peeling is incomplete (such as the label remaining on the backing paper), the controller can immediately trigger adjustment or stop the machine to avoid mislabeling or missing labeling caused by the label, and ensure accurate matching between the label and the product. The positioning and clamping mechanism uses first and second positioning and clamping components that are opposite to each other on the left and right, and the two components form a clamping space in front and behind each other. It can limit the product to be labeled in multiple directions from the left, right and front and back, effectively offsetting the offset during the conveying process, ensuring that the product is in the preset reference position when labeling, and greatly reducing the occurrence of labeling skew and offset problems. Furthermore, the missing label detection component and the label peeling mechanism are set up in opposite directions, which can detect whether there are any missing labels immediately after the product is labeled, and promptly screen out products with missing labels; the surface defect detection component is set on the side of the conveyor belt, which can specifically detect appearance defects such as bubbles, wrinkles, and damage after the label is applied, so as to achieve comprehensive monitoring of labeling quality, reduce the flow of unqualified products into downstream links, and reduce brand reputation risks. Furthermore, the various components are linked with the controller to achieve intelligent closed-loop control. Components such as label presence detection, peel confirmation, missing label detection, and surface defect detection are all connected to the controller. The controller can adjust the equipment's operating status in real time based on the detection signals from each component, thereby improving the automation and intelligence level of the equipment and reducing manual intervention.

[0016] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a top view of a preferred embodiment of the present invention; Figure 2 This is a perspective view of a preferred embodiment of the present utility model; Figure 3 This is a structural diagram of a preferred embodiment of the labeling device of this utility model; Figure 4 This is a structural diagram of the displacement adjustment mechanism according to a preferred embodiment of the present invention; Figure 5 This is a general control block diagram of a preferred embodiment of the present invention; Figure 6This is a structural diagram of a label presence / absence detection component according to a preferred embodiment of this utility model.

[0018] Explanation of reference numerals in the attached diagram: 10. Rack 20. Controller 30. Conveying mechanism; 31. Frame 32. Conveyor belt 40. Positioning and clamping mechanism; 41. First positioning and clamping assembly 42. Second positioning and clamping assembly 43. Clamping space 50. Labeling device; 51. Displacement adjustment mechanism 52. Front and rear adjustment assembly 53. Height adjustment assembly 54. Header plate 55. Material tray assembly 56. Label stripping mechanism 57. Traction mechanism 58. Roller 521. First transmission rod; 522. First guide rod 523. First adjusting handle; 524. First movable seat 531. Second transmission rod; 532. Third transmission rod 533, Second guide rod; 534, Second adjusting handle 535. Angle adjustment seat; 536. Third adjustment handle 561. Label peeling plate 562. Label pressing plate 60. Label presence / absence detection component 61. First mounting bracket 62. Does the label have a detection sensor? 70. Label peeling confirmation detection component; 80. Missing label detection component 90. Surface defect detection component; 100. Material unloading area. Detailed Implementation

[0019] First, it should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Please refer to Figures 1 to 6 As shown, it illustrates the specific structure of a preferred embodiment of the present invention.

[0021] A labeling machine with detection function includes a frame 10, a controller 20, a conveying mechanism 30, a positioning and clamping mechanism 40, a labeling device 50, a label presence / absence detection component 60, a label peeling confirmation detection component 70, a missing label detection component 80, and a surface defect detection component 90.

[0022] The controller 20 is mounted on the rack 10.

[0023] The conveying mechanism 30 is mounted on the frame 10; the conveying mechanism 30 includes a frame 31 and a conveyor belt 32 that extends left and right along the frame 31. Positioning clamping mechanism 40, which is mounted on frame 31 and connected to controller 20, includes a first positioning clamping component 41 and a second positioning clamping component 42 arranged opposite to each other on the left and right. The first positioning clamping component 41 and the second positioning clamping component 42 are arranged opposite to each other in front and behind to form a clamping space 43 for clamping the product to be labeled. The labeling device 50 is mounted above the conveyor belt 32 and connected to the controller 20 via a displacement adjustment mechanism 51. The labeling device 50 is used to label the front of the product to be labeled. Preferably, the displacement adjustment mechanism 51 includes a front-to-back adjustment component 52 and a height adjustment component 53. The height adjustment component 53 is movably mounted on the front-to-back adjustment component 52, and the labeling device 50 is disposed on the height adjustment component 53. The front-to-back adjustment component 52 includes a first transmission rod 521 and a first guide rod 522 disposed around the first transmission rod 521. The upper end of the first transmission rod 521 is provided with a first adjustment handle 523, and a first movable seat 524 is provided on the first transmission rod 521. The first guide rods 522 all penetrate the front and rear surfaces of the first movable seat 524. The height adjustment component 53 is disposed on the first movable seat 524. The first adjustment handle 523 drives the first movable seat 524 through the first transmission rod 521, thereby causing the labeling device 50 to move along the first guide rod 522. The height adjustment component 53 includes a second transmission rod 531, a third transmission rod 532, and a second guide rod 533 disposed around the third transmission rod 532. The upper end of the second transmission rod 531 is provided with a second adjustment handle 534, and an angle adjustment seat 535 is provided on the second transmission rod 531. The third transmission rod 532 is mounted on the angle adjustment seat 535 via an angle adjustment shaft. The third transmission rod 532 passes through the label plate 54, and its upper end is provided with a third adjustment handle 536. The second adjustment handle 534 drives the angle adjustment seat 535 to move via the second transmission rod 531. The displacement adjustment mechanism 51, through the combination design of the front-back adjustment component 52 and the height adjustment component 53, and the cooperation of the first transmission rod 521, the first guide rod 522, the second transmission rod 531, the third transmission rod 532, and the corresponding adjustment handles, achieves flexible adjustment of the labeling device 50 in both the front-back and height directions. Precise Adjustment: In the front and rear adjustment assembly 52, the first guide rod 522 provides stable guidance to the first movable seat 524. Combined with the mechanical transmission of the first transmission rod 521 and the first adjustment handle 523, the front and rear position of the labeling device 50 can be precisely controlled manually to adapt to products of different lengths and specifications. In the height adjustment assembly 53, the second transmission rod 531 and the second adjustment handle 534 work together to achieve overall height adjustment. The third transmission rod 532, through the cooperation of the angle adjustment shaft and the angle adjustment seat 535, can further fine-tune the tilt angle of the labeling device 50 (such as adapting to the tilt requirements of the product surface). The second guide rod 533 ensures the stability of the height adjustment process. The overall structure, through mechanical transmission and guidance, achieves high adjustment precision and convenient operation, solving the problems of cumbersome position adjustment and poor adaptability of traditional labeling devices 50. It can quickly respond to the labeling needs of products of different sizes and shapes, improving the versatility of the equipment.

[0024] The labeling device 50 includes at least a label head plate 54, a tray assembly 55 disposed on the label head plate 54, a label peeling mechanism 56, a traction mechanism 57, and several rollers 58 spaced apart. The tray assembly 55 is used to hold label rolls. The traction mechanism 57 cooperates with the rollers 58 to transport the label paper. The label peeling mechanism 56 includes a label peeling plate 561 and a label pressing plate 562 inclined towards the conveyor belt 32. The label peeling plate 561 is used to peel off the label, and the label pressing plate 562 is used to press the peeled label onto the product surface. Preferably, the labeling device 50... The system also includes a photoelectric sensor mounted on the label plate 54, which is installed on the side of the label peeling mechanism 56. The traction mechanism 57 includes a traction roller 58 and a drive motor. The drive motor is connected to the traction roller 58 via a synchronous belt, and drives the traction roller 58 via the synchronous belt. Compared with traditional friction transmission, synchronous belt transmission has the characteristics of no slippage and stable transmission ratio, which can ensure the matching of the label paper conveying speed and the speed of the conveyor belt 32, avoid the stretching and wrinkling of the label paper caused by unstable conveying, ensure the stability of label supply, and indirectly improve the labeling quality.

[0025] The label presence / absence detection component 60 is located behind the tray assembly 55 and connected to the controller 20. The label presence / absence detection component 60 is used to detect whether the labels to be labeled on the tray assembly 55 are exhausted or broken. Preferably, the label presence / absence detection component 60 includes a first mounting bracket 61 located on the frame 10 and a label presence / absence detection sensor 62 located on the first mounting bracket 61. The label presence / absence detection sensor 62 is located behind the tray assembly 55. The label presence / absence detection sensor 62 is mostly a diffuse reflection photoelectric sensor, installed behind the label roll. When the label paper is broken or exhausted, the sensor cannot detect the label, triggering a shutdown alarm. The transmitter of the label presence / absence detection sensor 62 emits infrared light onto the surface of the label paper, and the receiver receives the reflected light. There is a difference in reflectivity between the label paper (including the label layer) and the backing paper (usually a transparent or light-colored film): when the label is being transported normally, the label layer (mostly paper or with a printed layer) has a higher reflectivity, and the receiver can receive a stable reflected signal; when the label is exhausted (only the backing paper remains) or the label paper is broken (without any object blocking it), the reflectivity drops sharply (the backing paper has low reflectivity) or there is no reflected signal, and the sensor sends a label abnormality signal to the controller 20.

[0026] The label peeling confirmation detection component 70 is disposed corresponding to the label peeling plate 561 and connected to the controller 20. The label peeling confirmation detection component 70 is used to detect whether the label has been properly peeled off from the backing paper. Preferably, the label peeling confirmation detection component 70 includes a second mounting bracket and a label peeling confirmation sensor disposed on the second mounting bracket. The label peeling confirmation sensor is disposed corresponding to the label peeling plate 561. The label peeling confirmation sensor is usually a transmissive photoelectric sensor, which is installed at the label peeling plate. It determines whether the label has been properly detached from the backing paper by detecting the label residue on the backing paper (the label will block the light when it is not peeled off), thus avoiding empty application. The label peeling confirmation sensor is installed at the outlet of the label peeling plate 561 through the second mounting bracket. The transmitter and receiver are located on opposite sides of the backing paper conveying path (the backing paper will bend and retract along the bottom of the label peeling plate 561 after the label is peeled off). When the label is not peeled off, the label (opaque) on the backing paper will block the light path between the transmitter and receiver, and the receiver will not receive a signal. When the label is properly peeled off, only the transparent backing paper is left to pass through, the light path is unobstructed, and the receiver receives a signal. If there is no signal for an extended period (exceeding the preset time), the sensor determines that the stripping is abnormal and sends feedback to the controller 20.

[0027] The missing label detection component 80 is mounted on the frame 10 and connected to the controller 20. The missing label detection component 80 is positioned opposite to the label peeling mechanism 56. The missing label detection component 80 is used to detect whether a label has been missing from the product to be labeled. Preferably, the missing label detection component 80 includes a third mounting frame and a missing label detection sensor mounted on the third mounting frame. The missing label detection sensor is positioned opposite to the label peeling mechanism 56. The missing label detection sensor can be a visual sensor or a reflective photoelectric sensor. The missing label detection sensor determines whether the product has a label by image comparison. If it is a visual sensor: it captures an image of the product labeling area through a lens and compares it with a preset "labeled" standard image. If no label outline or features (such as edges or color blocks) are detected, it is determined that the label is missing. If a reflective photoelectric sensor is used, it is fixed above the product conveying path behind the label peeling mechanism 56 via a third mounting bracket. The transmitting end emits light towards the product labeling area, and the receiving end detects the intensity of the reflected light. The reflectivity of the label (such as paper or metal foil) differs significantly from that of the product surface (such as plastic or glass). If the detected reflectivity matches the label characteristics, it is determined that the label has been "labeled"; if the reflectivity matches that of the product surface, it is determined that the label was missed.

[0028] The surface defect detection component 90 is disposed on the side of the conveyor belt 32 near the labeling device 50. The surface defect detection component 90 is used to detect whether there are bubbles, wrinkles or damage defects in the label. The surface defect detection component 90 is connected to the controller 20.

[0029] Preferably, the surface defect detection component 90 includes a fourth mounting bracket and a surface defect detection sensor mounted on the fourth mounting bracket. The surface defect detection sensor is located beside the labeling device 50. The surface defect detection sensor also relies on a vision system to detect defects such as bubbles, wrinkles, and damage on the label, ensuring the quality of the label's appearance. It can employ an industrial vision sensor (including a lens, light source, and image processor). The sensor is fixed to the side of the labeling device 50 via the fourth mounting bracket, and the lens is aimed at the surface of the labeled product, using a coaxial light source (to reduce glare interference) to capture high-definition images. For example, the image processor compares a real-time image with a preset qualified label template: bubbles can cause abnormal reflection in local areas (abrupt changes in grayscale values); wrinkles can cause irregular deformation of the label edges (contour deviating from the template); damage can manifest as unexpected gaps or holes in the label area (missing pixels). When the above features are detected and exceed the tolerance range, a defect is determined to exist and feedback is sent to the controller 20. In this embodiment, the mounting brackets for each detection component are identical.

[0030] Preferably, the frame 10 is further provided with a feeding area 100, which is located at the right end of the output end.

[0031] The key design feature of this utility model is that it mainly uses a label presence detection component set behind the material tray assembly to monitor in real time whether the labels are exhausted or broken. Once an abnormality is detected, the controller can stop the machine and sound an alarm in time, avoiding the continuous operation of the equipment in the absence of labels, reducing the production of empty labeled products, reducing the cost of subsequent manual screening, and improving production continuity. Secondly, the label peeling confirmation detection component is set with a corresponding label peeling plate, which can accurately identify whether the label has been properly peeled off from the backing paper. If the peeling is incomplete (such as the label remaining on the backing paper), the controller can immediately trigger adjustment or stop the machine to avoid mislabeling or missing labeling caused by the label, and ensure accurate matching between the label and the product. The positioning and clamping mechanism uses first and second positioning and clamping components that are opposite to each other on the left and right, and the two components form a clamping space in front and behind each other. It can limit the product to be labeled in multiple directions from the left, right and front and back, effectively offsetting the offset during the conveying process, ensuring that the product is in the preset reference position when labeling, and greatly reducing the occurrence of labeling skew and offset problems. Furthermore, the missing label detection component and the label peeling mechanism are set up in opposite directions, which can detect whether there are any missing labels immediately after the product is labeled, and promptly screen out products with missing labels; the surface defect detection component is set on the side of the conveyor belt, which can specifically detect appearance defects such as bubbles, wrinkles, and damage after the label is applied, so as to achieve comprehensive monitoring of labeling quality, reduce the flow of unqualified products into downstream links, and reduce brand reputation risks. Furthermore, the various components are linked with the controller to achieve intelligent closed-loop control. Components such as label presence detection, peel confirmation, missing label detection, and surface defect detection are all connected to the controller. The controller can adjust the equipment's operating status in real time based on the detection signals from each component, thereby improving the automation and intelligence level of the equipment and reducing manual intervention.

[0032] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A labeling machine with detection function, characterized in that, Including: frame; The controller is mounted on the rack; A conveying mechanism is mounted on a frame; the conveying mechanism includes a frame and a conveyor belt extending left and right along the frame. A positioning clamping mechanism is mounted on a frame and connected to a controller. The positioning clamping mechanism includes a first positioning clamping component and a second positioning clamping component arranged opposite to each other on the left and right sides. The first positioning clamping component and the second positioning clamping component are arranged opposite to each other in front and behind to form a clamping space for clamping the product to be labeled. A labeling device is mounted above a conveyor belt and connected to a controller, allowing it to move back and forth and up and down via a displacement adjustment mechanism. The labeling device is used to label the front of the product to be labeled. The labeling device includes at least a label head plate, a tray assembly mounted on the label head plate, a label peeling mechanism, a traction mechanism, and several rollers spaced apart. The tray assembly holds the label rolls, the traction mechanism works with the rollers to convey the label paper, and the label peeling mechanism includes a peeling plate and a pressing plate inclined towards the conveyor belt. The peeling plate peels off the label, and the pressing plate presses the peeled label onto the product surface. A label presence or absence detection component is provided. The label presence or absence detection component is located behind the tray assembly and connected to the controller. The label presence or absence detection component is used to detect whether the labels to be labeled on the tray assembly are exhausted or broken. A label peeling confirmation detection component is provided corresponding to the label peeling plate and connected to the controller. The label peeling confirmation detection component is used to detect whether the label is peeled off normally from the backing paper. A missing label detection component is mounted on a frame and connected to a controller. The missing label detection component is positioned opposite to the label peeling mechanism. The missing label detection component is used to detect whether a product to be labeled has a missing label. A surface defect detection component is provided, which is located on the side of the conveyor belt near the labeling device. The surface defect detection component is used to detect whether there are bubbles, wrinkles or damage defects in the label. The surface defect detection component is connected to the controller.

2. The labeling machine with detection function according to claim 1, characterized in that: The displacement adjustment mechanism includes a front-to-back adjustment component and a height adjustment component. The height adjustment component is mounted on the front-to-back adjustment component and can move up and down. The labeling device is disposed on the height adjustment component. The front and rear adjustment assembly includes a first transmission rod and a first guide rod disposed around the first transmission rod. The upper end of the first transmission rod is provided with a first adjustment handle, and a first movable seat is provided on the first transmission rod. The first guide rods all pass through the front and rear surfaces of the first movable seat. The height adjustment assembly is disposed on the first movable seat. The first adjustment handle drives the first movable seat through the first transmission rod, thereby driving the labeling device to move along the first guide rod. The height adjustment assembly includes a second transmission rod, a third transmission rod, and a second guide rod disposed around the third transmission rod. The upper end of the second transmission rod is provided with a second adjustment handle, and an angle adjustment seat is provided on the second transmission rod. The third transmission rod is disposed on the angle adjustment seat via an angle adjustment shaft. The third transmission rod passes through the head plate, and the upper end of the third transmission rod is provided with a third adjustment handle. The second adjustment handle drives the angle adjustment seat to move through the second transmission rod.

3. The labeling machine with detection function according to claim 1, characterized in that: The label presence / absence detection component includes a first mounting bracket disposed on the frame and a label presence / absence detection sensor disposed on the first mounting bracket. The label presence / absence detection sensor is disposed behind the tray assembly.

4. The labeling machine with detection function according to claim 1, characterized in that: The label peeling confirmation detection component includes a second mounting bracket and a label peeling confirmation sensor disposed on the second mounting bracket, wherein the label peeling confirmation sensor is disposed corresponding to the label peeling plate.

5. The labeling machine with detection function according to claim 1, characterized in that: The missing label detection component includes a third mounting bracket and a missing label detection sensor disposed on the third mounting bracket. The missing label detection sensor is disposed opposite to the label peeling mechanism.

6. The labeling machine with detection function according to claim 1, characterized in that: The surface defect detection assembly includes a fourth mounting bracket and a surface defect detection sensor disposed on the fourth mounting bracket, wherein the surface defect detection sensor is disposed on the side of the labeling device.

7. The labeling machine with detection function according to claim 1, characterized in that: The frame is also provided with a feeding area, which is located at the right end of the output end.

8. The labeling machine with detection function according to claim 1, characterized in that: The labeling device also includes a label measuring photoelectric sensor installed on the label head plate. The label measuring photoelectric sensor is installed on the side of the label peeling mechanism. The traction mechanism includes a traction roller and a drive motor. The drive motor is connected to the traction roller via a synchronous belt.

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