Automatic labeling device

Abstract

The utility model discloses an automatic labeling device. According to the technical scheme, the automatic label feeding device comprises a rack, a label stripping mechanism is arranged on the rack, the automatic label feeding device further comprises a label receiving mechanism, a label transferring mechanism and a plastic barrel placing mechanism, the label receiving mechanism comprises a material receiving lifting air cylinder arranged on one side of a conveying guide plate, and the material receiving lifting air cylinder is connected with a receiving plate capable of receiving stripped labels; a plurality of air outlet holes capable of blowing air towards the labels are formed in the receiving plate; the label transferring mechanism comprises a transverse transferring air cylinder arranged on the rack, the transverse transferring air cylinder is connected with a material taking and placing lifting air cylinder through a connecting plate, and a negative pressure suction cup capable of adsorbing and releasing labels is arranged on a fixing plate. The sum of the suction force between the negative pressure suction cup and the label and the thrust of airflow in the blowing hole to the label is larger than the adhesive force between the label and the receiving plate. According to the scheme provided by the utility model, the label can be attached to the fixed position of the plastic barrel, the position is accurate and rapid, and the label attaching quality and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of labeling machines, in particular to an automatic labeling device. Background Art

[0002] In the production and manufacturing process of plastic barrels, the patterns on the plastic barrel bodies are generally mechanically printed and dyed, such as screen printing, in-mold printing, and heat transfer printing that require manual assistance. However, there is still a need to label the plastic barrel bodies. In the prior art, the method of labeling plastic barrel bodies is mostly implemented manually. Manual labeling often has mistakes, such as inaccurate labeling positions and wrinkles on the labeling surface. Moreover, in terms of labor costs, it also increases significantly. In the prior art, a label automatic peeling device has appeared very early. For example, the patent with the publication number CN101318571A discloses a label peeling device, which can be applied to the automatic peeling of self-adhesive labels, but it cannot realize the automatic labeling of plastic barrels. Therefore, how to design an automatic labeling device for plastic barrels is exactly the problem to be solved by the inventor. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the main purpose of the utility model is to provide an automatic labeling device that can attach labels at a fixed position on a plastic barrel, with accurate and fast positioning, and can improve the quality and efficiency of label attachment.

[0004] To achieve the above purpose, the utility model provides the following technical solutions: An automatic labeling device includes a frame. A label peeling mechanism is arranged on the frame. The label peeling mechanism includes a label feeding rack, a release paper dragging roller, a peeling knife, a release paper collecting roller, and a guide plate. After the label material roll on the label feeding rack passes through the release paper dragging roller, the peeling knife peels off the label, and the release paper of the label material roll is wound around the release paper collecting roller. The device also includes a label receiving mechanism, a label transferring mechanism, and a plastic barrel placing mechanism. The label receiving mechanism includes a receiving lifting cylinder arranged on one side of the conveying guide plate. The receiving lifting cylinder is connected with a receiving plate that can receive the peeled label. A plurality of air outlet holes that can blow air towards the label are arranged on the receiving plate. The label transferring mechanism includes a transverse transferring cylinder arranged on the frame. The transverse transferring cylinder is connected with a picking and placing lifting cylinder through a connecting plate. The picking and placing lifting cylinder is connected with a fixing plate. A negative pressure suction cup that can adsorb and release the label is arranged on the fixing plate. The suction force between the negative pressure suction cup and the label plus the thrust of the air flow in the air blowing holes on the label is greater than the adhesion force between the label and the receiving plate. The plastic barrel placing mechanism includes a placing rack arranged on one side of the receiving plate. A material detecting photoelectric sensor that can detect the plastic barrel is arranged below the placing rack.

[0005] Preferably, the area of the suction cup is greater than half of the area of the label.

[0006] Preferably, a buffer plate in contact with the plastic bucket is provided at the top of the placement rack.

[0007] Preferably, the connecting plate is in an L shape.

[0008] Preferably, the label peeling mechanism further includes a tension roller provided in front of the release paper dragging roller.

[0009] The utility model has the following advantages compared with the prior art. The label material roll is placed on the label feeding rack. After the label material roll is pulled out and passes through the release paper dragging roller, the peeling knife peels off the label, and the release paper of the label material roll is wound on the release paper collecting roller. The label receiving mechanism uses the receiving plate to receive the peeled label. The lifting air cylinder lifts the receiving plate to be able to receive the label at a close distance. Then the label transfer mechanism acts. The picking and placing lifting air cylinder drives the negative pressure suction cup to attach to the label on the receiving plate and adsorbs it through negative pressure. Then the picking and placing lifting air cylinder drives the negative pressure suction cup to rise. At this time, several air outlet holes on the receiving plate blow air towards the label to provide a force for the label to break away. In this way, the suction force between the negative pressure suction cup and the label plus the thrust of the air flow in the air blowing holes on the label is greater than the adhesion force between the label and the receiving plate, so that the label can be adsorbed by the negative pressure suction cup. When the object detection photoelectric eye of the plastic bucket placement mechanism detects the plastic bucket, the horizontal transfer air cylinder acts, driving the negative pressure suction cup to reach the position of the placement rack, that is, above the plastic bucket. Then the picking and placing lifting air cylinder drives the negative pressure suction cup to descend to the position of the plastic bucket and attach the label to the plastic bucket. This solution can achieve attaching the label at a fixed position of the plastic bucket, with accurate and fast positioning, and can improve the quality and efficiency of label attachment. Description of the Drawings

[0010] Figure 1 It is a schematic structural diagram of an automatic labeling device of the utility model.

[0011] In the figure: 1, frame; 2, label feeding rack; 3, release paper dragging roller; 4, peeling knife; 5, release paper collecting roller; 6, guide plate; 7, receiving lifting air cylinder; 8, receiving plate; 9, air outlet hole; 10, horizontal transfer air cylinder; 11, connecting plate; 12, picking and placing lifting air cylinder; 13, fixing plate; 14, negative pressure suction cup; 15, placement rack; 16, object detection photoelectric eye; 17, buffer plate; 18, tension roller. Detailed Embodiments

[0012] The following further describes the utility model with reference to the drawings.

[0013] As Figure 1As shown in the figure, an automatic labeling device includes a frame 1, on which a label peeling mechanism is provided. The label peeling mechanism includes a label feeding rack 2, a release paper dragging roller 3, a peeling knife 4, a release paper collecting roller 5 and a guide plate 6. After the label roll on the label feeding rack 2 passes through the release paper dragging roller 3, the peeling knife 4 peels off the label, and the release paper of the label roll is wound around the release paper collecting roller 5. It also includes a label receiving mechanism, a label transferring mechanism and a plastic bucket placing mechanism. The label receiving mechanism includes a receiving lifting cylinder 7 provided on one side of the conveying guide plate 6. The receiving lifting cylinder 7 is connected with a receiving plate 8 that can receive the peeled label. A plurality of air outlets 9 that can blow air towards the label are provided on the receiving plate 8. The label transferring mechanism includes a horizontal transfer cylinder 10 provided on the frame 1. The horizontal transfer cylinder 10 is connected with a picking and placing lifting cylinder 12 through a connecting plate 11. The picking and placing lifting cylinder 12 is connected with a fixing plate 13. A negative pressure suction cup 14 that can adsorb and release the label is provided on the fixing plate 13. The suction force between the negative pressure suction cup 14 and the label plus the thrust of the air flow in the air blowing holes on the label is greater than the adhesion force between the label and the receiving plate 8. The plastic bucket placing mechanism includes a placing rack 15 provided on one side of the receiving plate 8. A object detecting photoelectric eye 16 that can detect the plastic bucket is provided below the placing rack 15.

[0014] In the working process of an automatic labeling device of this solution, the label roll is placed on the label feeding rack 2. After the label roll is pulled out and passes through the release paper dragging roller 3, the peeling knife 4 peels off the label, and the release paper of the label roll is wound around the release paper collecting roller 5. The label receiving mechanism uses the receiving plate 8 to receive the peeled label. The lifting cylinder lifts the receiving plate 8 to receive the label at a close distance. Then the label transferring mechanism operates. The picking and placing lifting cylinder 12 drives the negative pressure suction cup 14 to attach to the label on the receiving plate 8 and adsorbs it through negative pressure. Then the picking and placing lifting cylinder 12 drives the negative pressure suction cup 14 to rise. At this time, a plurality of air outlets 9 on the receiving plate 8 blow air towards the label to provide a force for the label to break away. In this way, the suction force between the negative pressure suction cup 14 and the label plus the thrust of the air flow in the air blowing holes on the label is greater than the adhesion force between the label and the receiving plate 8, so that the label can be adsorbed by the negative pressure suction cup 14. When the object detecting photoelectric eye 16 of the plastic bucket placing mechanism detects the plastic bucket, the horizontal transfer cylinder 10 operates, driving the negative pressure suction cup 14 to reach the position above the placing rack 15, that is, above the plastic bucket. Then the picking and placing lifting cylinder 12 drives the negative pressure suction cup 14 to descend to the position of the plastic bucket and attach the label to the plastic bucket. In this solution, the plastic bucket can be placed manually or placed on the placing rack 15 by an industrial manipulator, and this solution does not make any restrictions. This solution can achieve attaching the label at a fixed position of the plastic bucket, with accurate and fast positioning, and can improve the quality and efficiency of label attachment.

[0015] Preferably, the area of the suction cup is greater than half of the area of the label. Such a setting can ensure the adsorption force between the negative pressure suction cup 14 and the label.

[0016] Preferably, a buffer plate 17 in contact with the plastic bucket is provided at the top of the placement rack 15.

[0017] The setting of the buffer plate 17 can prevent deformation and collision of the plastic bucket.

[0018] Preferably, the connecting plate 11 is L-shaped.

[0019] Preferably, the label peeling mechanism further includes a tension roller 18 provided in front of the release paper dragging roller 3.

[0020] The tension roller 18 can improve the tension during the peeling of the label material roll and ensure the label peeling quality.

[0021] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. An automatic labeling device, comprising a frame, on which a label peeling mechanism is arranged. The label peeling mechanism includes a label feeding rack, a release paper dragging roller, a peeling knife, a release paper collecting roller and a guide plate. After the label roll on the label feeding rack passes through the release paper dragging roller, the peeling knife peels off the label, and the release paper of the label roll is wound around the release paper collecting roller. It is characterized in that: It further includes a label receiving mechanism, a label transfer mechanism and a plastic bucket placing mechanism. The label receiving mechanism includes a receiving lifting cylinder arranged on one side of the conveying guide plate. The receiving lifting cylinder is connected with a receiving plate capable of receiving the peeled label. A plurality of air holes capable of blowing air towards the label are arranged on the receiving plate. The label transfer mechanism includes a transverse transfer cylinder arranged on the frame. The transverse transfer cylinder is connected with a pick-and-place lifting cylinder through a connecting plate. The pick-and-place lifting cylinder is connected with a fixing plate. A negative pressure suction cup capable of adsorbing and releasing the label is arranged on the fixing plate. The suction force between the negative pressure suction cup and the label plus the thrust of the air flow in the air holes on the label is greater than the adhesion force between the label and the receiving plate. The plastic bucket placing mechanism includes a placing rack arranged on one side of the receiving plate. An object detecting photoelectric eye capable of detecting the plastic bucket is arranged below the placing rack.

2. The automatic labeling device according to claim 1, wherein: The area of the suction cup is greater than half of the area of the label.

3. An automatic labeling device according to claim 1, characterized in that: A buffer plate in contact with the plastic bucket is arranged at the top of the placing rack.

4. An automatic labeling device according to claim 1, characterized in that: The connecting plate is in an L shape.

5. An automatic labeling device according to claim 1, characterized in that: The label peeling mechanism further includes a tensioning roller arranged in front of the release paper dragging roller.

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