An automatic labeling machine capable of positioning a labeling position

Abstract

The utility model belongs to the technical field of pasting label, disclose a kind of automatic labelling machine of positionable labelling position, including conveyer belt, unwinding wheel, guide wheel, labelling wheel, winding wheel and stripping plate;Conveyer belt is installed on rack;Positioning strip is set on conveyer belt;Winding motor is installed on winding wheel;Conveyer belt is driven by driving roller and transmission roller, and driving roller is driven by servo motor;Limiting rail is installed on rack, and the inner side surface of limiting rail and bottle shoulder are attached;Symmetrical support frame is installed on the limiting rail of rack side, and industrial camera is arranged between the two support frames;Industrial camera is inclined and aligned with conveyer belt;Industrial camera is connected by ethernet interface and PLC controller;PLC controller and servo motor, winding motor are electrically connected.The utility model realizes that the axis of label and the axis of bottle body are attached, and avoids label offset.

Description

Technical Field

[0001] This utility model belongs to the field of label pasting technology, specifically an automatic label pasting machine that can locate the label pasting position. Background Technology

[0002] Labeling machines are devices used to affix labels to bottles, primarily used in the food, pharmaceutical, and daily chemical industries. Existing round bottle labeling machines mainly consist of an unwinding roller, a buffer roller, a guide roller, a drive roller, a rewinding roller, a peeling plate, and a labeling roller. However, they are not very effective at labeling flat bottles, and the labels tend to deviate from the center line.

[0003] A related reference, CN208947786U, discloses an automatic labeling mechanism including a fixed plate, an unwinding roller, a peeling roller, a rewinding roller, and a labeling roller. The fixed plate has an unwinding roller connected to the peeling roller via a label tape, and the peeling roller is connected to the labeling roller via the same label tape. The labeling roller is located to the left of the rewinding roller. The fixed plate has a guardrail containing a conveyor belt. The lower end of the fixed plate is connected to one end of a connecting shaft C, and the other end of the connecting shaft C is connected to a motor via a coupling. The non-end face of the connecting shaft C is connected to a pulley B via a key. The motor drives the pulley and belt, causing the clamping plate to rotate and contact the bottle, affixing the label to the bottle. Additionally, a cylinder pushes the bottle between two pressure plates, firmly attaching the label to the bottle, thus achieving automated labeling. However, for flat bottles, it is difficult to accurately adhere the label to the bottle's central axis, resulting in poor labeling performance. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an automatic bottle labeling machine that aligns the label's central axis with the bottle's central axis to prevent label misalignment.

[0005] To address the above technical problems, this utility model provides an automatic labeling machine with a positioning function, comprising a conveyor belt, an unwinding roller, a guide roller, a labeling roller, a rewinding roller, and a peeling plate; the conveyor belt is mounted on a frame; positioning strips are provided on the conveyor belt; a rewinding motor is mounted on the rewinding roller; the conveyor belt is driven by a drive roller and a transmission roller, the drive roller being driven by a servo motor; a limit rail is installed on the frame, the inner side of the limit rail conforming to the bottle shoulder; support frames are symmetrically installed on the limit rail on one side of the frame, and an industrial camera is positioned between the two support frames; the industrial camera is tilted and aligned with the conveyor belt; the industrial camera is connected to a PLC controller via an Ethernet interface; the PLC controller is electrically connected to the servo motor and the rewinding motor.

[0006] By adopting the above technical solution, the bottle is placed at the positioning strip and transported forward with the conveyor belt. With the cooperation of the positioning strip and the industrial camera, when the label is applied, the industrial camera detects that the positioning strip has reached the target position and starts the take-up roller, so that the label is peeled off and pasted onto the bottle body, realizing the alignment of the label's central axis with the bottle's central axis and avoiding label misalignment.

[0007] Preferably, a rubber pad is placed between the industrial camera and the support frame.

[0008] By adopting the above technical solutions, the vibration impact of the conveyor belt on the industrial camera is reduced, thereby lowering the positioning error of the industrial camera.

[0009] Preferably, the cross-section of the support frame is triangular.

[0010] By adopting the above technical solution, the three sides of the support frame support each other to form a rigid structure that is not easily deformed, providing stable support for the industrial camera.

[0011] Preferably, the industrial camera is at an angle of 30-45° to the plane of the conveyor belt.

[0012] By adopting the above technical solution, the 30-45° angle between the industrial camera and the conveyor belt balances the field of view and distortion, which is conducive to accurately capturing the position information of the positioning strip.

[0013] Preferably, LED lights are installed at the front of the bottom of the industrial camera.

[0014] By adopting the above technical solution, the LED beads at the bottom of the industrial camera provide uniform illumination to the positioning strip, eliminating the shadows generated at the positioning strip and further refining the positioning strip's position information.

[0015] Preferably, a peeling plate is tangentially arranged at the guide wheel, the distance between the peeling end of the peeling plate and the guide wheel is the thickness of the label backing paper, and the peeling plate is connected to the labeling wheel.

[0016] By adopting the above technical solution, the label can be accurately peeled off from the backing paper by the peeling plate when it passes the guide roller, and quickly and smoothly transferred to the labeling roller. The seamless transfer method keeps the label flat during the labeling process and improves the labeling quality.

[0017] Preferably, the tail end of the peeling plate is rounded.

[0018] By adopting the above technical solution, the arc-shaped tail of the peeling plate makes the label transition more smoothly to the labeling roller, avoiding fuzzing and damage to the label edges.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model places the bottle on the positioning strip. The bottle is transported forward with the conveyor belt. With the cooperation of the positioning strip and the industrial camera, when the label is applied, the industrial camera detects that the positioning strip has reached the target position and starts the winding wheel to peel off and stick the label to the bottle body, so as to achieve the alignment of the label's central axis with the bottle's central axis and avoid label misalignment.

[0020] 2. A rubber pad is installed between the industrial camera and the support frame in this utility model to reduce the vibration impact of the conveyor belt on the industrial camera and reduce the positioning error of the industrial camera.

[0021] 3. The industrial camera of this utility model is at a 30-45° angle to the plane of the conveyor belt, which balances the field of view and distortion, and is conducive to accurately capturing the position information of the positioning strip. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a schematic diagram of the installation of the industrial camera of this utility model; Figure 3 This is a schematic diagram of the support frame of this utility model; Figure 4 This is a schematic diagram of the installation of the peeling plate of this utility model.

[0023] Drawing numbers: 1. Conveyor belt, 2. Unwinding roller, 3. Guide roller, 4. Labeling roller, 5. Rewinding roller, 6. Peeling plate, 7. Positioning strip, 8. Rewinding motor, 9. Drive roller, 10. Transmission roller, 11. Mounting plate, 12. Frame, 13. Limiting rail, 14. Support frame, 15. Industrial camera, 16. PLC controller, 17. Rubber pad, 18. LED light beads. Detailed Implementation

[0024] like Figure 1As shown, an automatic labeling machine with positionable labeling includes a conveyor belt 1, an unwinding roller 2, a guide roller 3, a labeling roller 4, a take-up roller 5, and a peeling plate 6 mounted on a mounting plate 11. The conveyor belt 1 is mounted on a frame 12, and positioning strips 7 are evenly distributed on the conveyor belt 1. A take-up motor 8 is mounted on the take-up roller 5; the take-up roller 5 is mounted on the upper end face of the mounting plate 11, and the take-up motor 8 is mounted on the lower end face of the mounting plate 11. The output shaft of the take-up motor 8 passes through the mounting plate 11 and is fixedly connected to the shaft of the take-up roller 5. The mounting plate 11 is fixed to the frame 12. The conveyor belt 1 is driven by a drive roller 9 and a transmission roller 10. The drive roller 9 is driven by a servo motor. The drive roller 9 is mounted on a drive frame on the bottom surface of the frame 12 via a main bearing, and two transmission rollers 10 are respectively mounted at both ends of the frame 12; the conveyor belt 1 is sleeved on the outer circumference of the transmission roller 10 and the drive roller 9. The output shaft of the servo motor is connected to the drive roller 9 via a belt; preferably, the output shaft of the servo motor is connected to the drive roller 9 via a gear and a meshing gear at the end of the drive roller 9. The servo motor is mounted on the drive frame. A limit rail 13 is installed on the frame 12, and the inner side of the limit rail 13 fits against the bottle shoulder. Support frames 14 are symmetrically installed on the limit rail 13 on one side of the frame 12.

[0025] like Figure 2 As shown, an industrial camera 15 is positioned between the two support frames 14. The industrial camera 15 is tilted and aligned with the conveyor belt 1; the industrial camera 15 is connected to a PLC controller 16 via an Ethernet interface; the PLC controller 16 is electrically connected to a servo motor and a take-up motor 8. This application is applicable to labeling flat bottles. The bottle is placed at the positioning strip 7, and the bottle is conveyed forward with the conveyor belt 1. Through the cooperation of the positioning strip 7 and the industrial camera 15, when labeling, the industrial camera 15 detects that the positioning strip 7 has reached the target position, and starts the take-up roller 5, so that the label is peeled off and pasted onto the bottle body, realizing the alignment of the label's central axis with the bottle's central axis, and avoiding label misalignment.

[0026] The industrial camera 15 is at a 30-45° angle to the plane of the conveyor belt 1, which balances the field of view and distortion, and is conducive to accurately capturing the position information of the positioning strip 7.

[0027] A rubber pad 17 is installed between the industrial camera 15 and the support frame 14 to reduce the vibration impact of the conveyor belt 1 on the industrial camera 1 and reduce the positioning error of the industrial camera 15.

[0028] An LED bead 18 is installed at the front of the bottom of the industrial camera 15 to provide uniform illumination to the positioning strip 7, eliminate the shadow generated at the positioning strip 7, and further accurately locate the position information of the positioning strip 7.

[0029] like Figure 3 As shown, the support frame 14 has a triangular cross-section. The support frame 14 is fixed to the frame 12 by bolts or welding. The three sides of the support frame 14 support each other to form a rigid structure that is not easily deformed, providing stable support for the industrial camera 15.

[0030] like Figure 4 As shown, a peeling plate 6 is tangentially positioned at the guide wheel 3. The distance between the peeling end of the peeling plate 6 and the guide wheel 3 is the thickness of the label backing paper. The peeling plate 6 is connected to the labeling wheel 4. This allows the label to be precisely peeled off from the backing paper by the peeling plate 6 as it passes the guide wheel 3, and then quickly and smoothly transferred to the labeling wheel 4. This seamless transfer method keeps the label flat during the labeling process, improving the labeling quality. The tail of the peeling plate 6 is rounded. The rounded tail of the peeling plate 6 makes the label transition more smoothly to the labeling wheel 4, preventing the label edges from fraying or breaking.

[0031] Conveyor belt 1 uses a rough-surfaced rubber belt with high frictional resistance. The bottle bottom is placed close to the positioning strip 7. The inner side of the limiting rail 13 fits against the bottle shoulder, allowing the bottle to move in a straight line along a predetermined path. As conveyor belt 1 moves forward, industrial camera 15 detects that positioning strip 7 has reached the target position and starts the take-up roller 5. Directly in front of guide roller 3, the peeling end of peeling plate 6 is close to the backing paper. As the take-up roller 5 rewinds, the label is peeled off the backing paper and then pasted onto the bottle body. Industrial camera 15 and positioning strip 7 work together, with PLC controller 16 precisely controlling take-up roller 5, peeling the label at one end to the target point, ensuring that the label's central axis aligns with the bottle's central axis, and preventing label misalignment.

[0032] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. An automatic labeling machine capable of positioning the labeling position, comprising a conveyor belt (1), an unwinding reel (2), a guide wheel (3), a labeling wheel (4), a rewinding reel (5), and a peeling plate (6); the conveyor belt (1) is mounted on a frame (12); characterized in that: Positioning strips (7) are provided on the conveyor belt (1); a winding motor (8) is installed on the winding wheel (5); the conveyor belt (1) is driven by a drive roller (9) and a transmission roller (10), and the drive roller (9) is driven by a servo motor (11); a limiting rail (13) is installed on the frame (12), and the inner side of the limiting rail (13) is in contact with the bottle shoulder; support frames (14) are symmetrically installed on the limiting rail (13) on one side of the frame (12), and an industrial camera (15) is set between the two support frames (14); the industrial camera (15) is tilted and aligned with the conveyor belt (1); the industrial camera (15) is connected to the PLC controller (16) through an Ethernet interface; the PLC controller (16) is electrically connected to the servo motor (11) and the winding motor (8).

2. An automatic labeling machine with a position for positioning labels according to claim 1, characterized in that: A rubber pad (17) is provided between the industrial camera (15) and the support frame (14).

3. An automatically labeling machine capable of positioning a labeling position according to claim 1, characterized in that: The cross-section of the support frame (14) is triangular.

4. An automatic labeling machine with a position for labeling as described in claim 1, characterized in that: The industrial camera (15) is at an angle of 30-45° to the plane of the conveyor belt (1).

5. An automatic labeling machine with a position for positioning labels according to claim 1, characterized in that: LED beads (18) are installed at the front of the bottom of the industrial camera (15).

6. An automatic labeling machine with a position for labeling as described in claim 1, characterized in that: A peeling plate (6) is tangentially arranged at the guide wheel (3). The distance between the peeling end of the peeling plate (6) and the guide wheel (3) is the thickness of the label backing paper. The peeling plate (6) and the labeling wheel (4) are connected.

7. An automatic labeling machine with a position for labeling as described in claim 1, characterized in that: The tail of the peeling plate (6) is rounded.

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