Label adjusting structure of a labeling machine

Abstract

The application relates to a label adjusting structure of a labeling machine and relates to the technical field of labeling machines. The label adjusting structure comprises a rack, a conveying belt arranged on the rack, air holes, supporting rollers, conveying rollers, guide plates, pressing rollers, a first adjusting assembly and a leveling mechanism. The label adjusting structure of the labeling machine is convenient for placing a label roll, the conveying rollers are convenient for conveying the label roll, the label in the pasting process is extruded through the action of the guide plates and the pressing rollers, the packaging bag is sucked and stabilized at a label pasting position of the conveying belt through an air extractor, and the stability of the packaging bag during label pasting is facilitated.

Description

Technical Field

[0001] This application relates to the technical field of labeling machines, and in particular to a label adjustment structure for a labeling machine. Background Technology

[0002] A food packaging bag labeling machine, disclosed in related technology publication number CN215323785U, includes a conveyor belt, a first fixed plate, a second fixed plate, a support rod, a rotating shaft, an auxiliary rod, a display screen, an operating plate, and a controller. It also includes a vertical box located below the operating plate. A motor is mounted at the rear end of the vertical box, and a straight rod is bolted to the output shaft of the motor. The other end of the straight rod extends into the interior of the vertical box and is bolted to a first gear. A second gear meshes with the surface of the first gear, and a screw is bolted to the interior of the second gear. This invention allows for height adjustment and can accommodate packaging bags of various heights. It also facilitates quick label roll replacement by operators, solving the problems of existing food packaging bag labeling machines that cannot adjust height and hinder quick label roll replacement by operators.

[0003] Regarding the label adjustment structure of the labeling machine in the aforementioned technology, due to its inherent design characteristics, the inventors discovered that because the packaging bags themselves are relatively light, or even empty, they are prone to movement during the labeling process. This movement may not only cause the label to be applied crookedly or unevenly, but may even cause it to be applied directly to the outside of the packaging bag, resulting in a large amount of labeling waste and significantly affecting production efficiency and product qualification rate. Utility Model Content

[0004] To address the issue of label adjustment structures in current labeling machines, the inventors have discovered that packaging bags, being lightweight or even empty, are prone to shifting during the labeling process. This shift can lead to misaligned or uneven label application, or even labels being applied directly to the outside of the packaging bag, resulting in a large amount of labeling waste and significantly impacting production efficiency and product yield. This application provides a label adjustment structure for a labeling machine.

[0005] The label adjustment structure of the labeling machine provided in this application adopts the following technical solution: including a frame, a conveyor belt disposed on the frame, air holes evenly disposed on the conveyor belt, a support roller disposed on one side of the frame, a plurality of conveying rollers disposed relative to the discharge direction of the support roller, a guide plate disposed below the discharge direction of the conveying rollers, a pressure roller disposed below the guide plate and disposed relative to the conveyor belt, a first adjustment component disposed at the connection between the pressure roller and the guide plate, and a leveling mechanism disposed below the conveyor belt and disposed relative to the pressure roller;

[0006] The leveling mechanism includes a mounting groove on the frame, a mounting plate in the inner cavity of the mounting groove, an exhaust fan on the mounting plate, an exhaust hole on the mounting plate and the exhaust fan but away from the exhaust fan, and a second adjustment component for adjusting the mounting plate.

[0007] By employing the above technical solution, the support rollers and conveyor rollers on the frame work together. The support rollers hold the label rolls and facilitate their transport, while the conveyor rollers move the label rolls forward. Next, the labels are squeezed under the action of the guide plate and pressure rollers, ensuring flatness during the lamination process. The design of the pressure rollers located below the guide plate ensures the labels remain stable during lamination, improving lamination quality. Evenly distributed air holes on the conveyor belt can draw the packaging bags to the labeling position, enhancing the stability of the packaging bags during labeling. In the leveling mechanism, a negative pressure is created by the suction fan installed in the mounting groove and the exhaust holes located away from it, adsorbing the packaging bags onto the conveyor belt and ensuring their accurate and stable positioning during labeling. Through the coordinated work of these components, the equipment can effectively and accurately affix labels to packaging bags, improving production efficiency and label lamination quality.

[0008] As a preferred embodiment, the first adjusting component includes adjusting slide rods at both ends of the pressure roller and adjusting nuts disposed at the connection between the adjusting slide rods and the guide plate. The adjusting nuts are connected to the guide plate via a threaded structure, and the adjusting slide rods are provided with sliding holes adapted to the adjusting nuts.

[0009] By adopting the above technical solution, the adjusting nut is fixed at the connection between the adjusting slide rod and the guide plate, and the adjusting slide rod is provided with a sliding hole that matches the adjusting nut. This allows for easy adjustment of the position of the adjusting slide rod relative to the conveyor belt, thereby adjusting the pressure of the pressure roller on the packaging bag, ensuring that the label can be tightly attached to the packaging bag, and improving the quality of label attachment.

[0010] As a preferred embodiment, the two ends of the pressure roller are rotatably connected to the adjusting slide rod, and the outer periphery of the pressure roller is set as a smooth arc surface.

[0011] By adopting the above technical solution, after the packaging bag and label are affixed, the rotational connection between the two ends of the sliding rod and the pressure roller ensures that the label is tightly adhered to the surface of the packaging bag. The smooth arc surface of the pressure roller's outer circumference reduces friction when in contact with the packaging bag, improving the adhesion effect. After the packaging bag affixing is completed, the packaging bag continues to be smoothly conveyed forward along the conveyor belt through the combined action of the conveyor belt and the pressure roller, thus ensuring that the labeled packaging bag smoothly enters the next process.

[0012] As a preferred embodiment, a fixing screw is provided at the connection between the mounting plate and the exhaust fan, and the fixing screw passes through the connection between the exhaust fan and the mounting plate.

[0013] By adopting the above technical solution, fixing screws are set at the connection between the mounting plate and the exhaust fan, so that the exhaust fan can be firmly installed on the mounting plate. The fixing screws pass through the exhaust fan and the mounting plate, ensuring that the exhaust fan operates stably during operation and will not loosen or shift.

[0014] As a preferred embodiment, the inner diameter of the exhaust port is smaller than the exhaust port of the exhaust fan, and the inner wall of each exhaust port is coated with an electrostatic coating.

[0015] By adopting the above technical solution, the inner diameter of the exhaust port is designed to be smaller than the exhaust port of the exhaust fan. This causes the airflow to contract when it enters the exhaust port, enhancing the local vortex effect and thus improving the air purification efficiency. At the same time, the inner wall of the exhaust port is treated with an electrostatic coating to form a charged surface that can attract and capture charged particles, further improving the filtration effect.

[0016] As a preferred embodiment, the second adjustment component includes a support plate fixedly disposed on one side of the mounting groove, a screw connected to the support plate, a movable block fixedly disposed on one side of the lower end face of the mounting plate and connected to the screw, a threaded sleeve disposed at the connection between the movable block and the screw, a drive motor for driving the screw, a slider fixedly disposed on the other side of the mounting plate, and a slide rail disposed on the mounting groove and adapted to the slider. A ball bearing is provided at the connection between the screw and the support plate.

[0017] By adopting the above technical solution, the second adjustment component is connected to the screw rod via a support plate fixedly mounted on one side of the mounting groove. The support plate and the screw rod are connected by ball bearings, allowing the screw rod to rotate smoothly. A threaded sleeve is installed on the screw rod, and the threaded sleeve is fixedly connected to a moving block. The moving block moves linearly along the screw rod under the drive of the drive motor. A slider parallel to the screw rod is fixed on the other side of the mounting plate, and the slider is slidably mounted in a slide rail on the mounting groove. When the drive motor starts and drives the screw rod to rotate, the screw rod drives the threaded sleeve and the moving block fixed to it to move along its axial direction, thereby moving the mounting plate horizontally to meet different maintenance needs. It can also effectively clean impurities in the exhaust hole, keeping the equipment clean and operating efficiently.

[0018] As a preferred embodiment, the output shaft of the drive motor is connected to the screw, and the drive motor is fixedly mounted on the outside of the support plate.

[0019] By adopting the above technical solution, the drive motor is fixedly installed on the outside of the support plate to ensure stable operation of the drive motor. The drive motor is set as a forward and reverse motor, which enables the output shaft to rotate in both directions, thereby driving the screw to rotate in both directions. This allows for flexible adjustment of the equipment's working state and improves work efficiency.

[0020] In summary, this application includes the following beneficial technical effects:

[0021] 1. By rotating the adjusting nut on the adjusting slide bar, the adjusting slide bar moves relative to the guide plate and the pressure roller, thereby changing the distance between the pressure roller and the packaging bag, and thus adjusting the pressure on the packaging bag, so that the label can be more tightly attached to the packaging bag;

[0022] 2. By setting fixing screws at the connection between the mounting plate and the exhaust fan, the exhaust fan can be firmly installed on the mounting plate. The fixing screws pass through the exhaust fan and the mounting plate to ensure that the exhaust fan operates stably during operation and will not loosen or shift.

[0023] 3. The support plate and the screw are connected by ball bearings, allowing the screw to rotate smoothly. A threaded sleeve is installed on the screw, and the threaded sleeve is fixedly connected to a moving block. The moving block moves linearly along the screw under the drive of the drive motor. A parallel slider is fixed on the other side of the mounting plate, and the slider is slidably installed in a slide rail on the mounting groove. When the drive motor starts and drives the screw to rotate, the screw drives the threaded sleeve and the moving block fixed to it to move axially, thereby moving the mounting plate horizontally to meet different maintenance needs. It can also effectively clean impurities in the exhaust port, keeping the equipment clean and operating efficiently. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the label adjustment structure of the labeling machine of this application;

[0025] Figure 2 It is the label adjustment structure of the labeling machine of this application. Figure 1 A structural schematic diagram of a partial sectional view;

[0026] Figure 3 It is the label adjustment structure of the labeling machine of this application. Figure 2 A structural schematic diagram of the enlarged view at point A;

[0027] Figure 4 This is a partially exploded view of the adjustment component in the label adjustment structure of the labeling machine of this application;

[0028] Figure 5 It is the label adjustment structure of the labeling machine of this application. Figure 4Another structural diagram from another perspective;

[0029] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Conveyor belt; 21. Air hole; 31. Support roller; 32. Conveyor roller; 33. Guide plate; 4. Pressure roller; 51. Adjusting slide bar; 511. Adjusting nut; 61. Exhaust fan; 611. Fixing screw; 62. Mounting plate; 620. Exhaust hole; 621. Sliding block; 6211. Slide rail; 71. Screw; 711. Support plate; 72. Moving block; 721. Screw sleeve; 8. Drive motor. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 This application discloses a label adjustment structure for a labeling machine. It includes a frame 1, a conveyor belt 2 mounted on the frame 1, air holes 21 evenly distributed on the conveyor belt 2, a support roller 31 on one side of the frame 1, several conveying rollers 32 arranged relative to the discharge direction of the support roller 31, a guide plate 33 positioned below the discharge direction of the conveying rollers 32, and a pressure roller 4 positioned below the guide plate 33 and relative to the conveyor belt 2. The support roller 31 and the conveying rollers 32 on the frame 1 work together. The support roller 31 holds the label roll and facilitates its transport, while the conveying rollers 32 move the label roll forward. The label is then squeezed under the action of the guide plate 33 and the pressure roller 4, ensuring flatness during the labeling process. The design of the pressure roller 4, located below the guide plate 33, keeps the label stable during the labeling process, improving the labeling quality. The evenly distributed air holes 21 on the conveyor belt 2 can draw the packaging bag to the labeling position, enhancing the stability of the packaging bag during labeling.

[0032] For details, please refer to [link / reference]. Figure 1 , Figure 3 , Figure 4 and Figure 5A first adjusting component is provided at the connection between the pressure roller 4 and the guide plate 33. The first adjusting component includes adjusting slide rods 51 at both ends of the pressure roller 4 and adjusting nuts 511 at the connection between the adjusting slide rods 51 and the guide plate 33. The adjusting nuts 511 are connected to the guide plate 33 through a threaded structure. The adjusting slide rods 51 are provided with sliding holes that are compatible with the adjusting nuts 511. The adjusting nuts 511 are fixed at the connection between the adjusting slide rods 51 and the guide plate 33. The adjusting slide rods 51 are provided with sliding holes that are compatible with the adjusting nuts 511, which can easily adjust the position of the adjusting slide rods 51 relative to the conveyor belt 2, thereby adjusting the pressure of the pressure roller 4 on the packaging bag, ensuring that the label can be tightly attached to the packaging bag, and improving the quality of label attachment. The specific working principle is as follows: When it is necessary to change the pressing pressure, the position of the adjusting nut 511 on the adjusting slide rod 51 is rotated, so that the adjusting slide rod 51 moves relative to the guide plate 33 and the pressure roller 4, thereby changing the distance between the pressure roller 4 and the packaging bag, and thus adjusting the pressure on the packaging bag, so that the label can be attached to the packaging bag more tightly, effectively ensuring the quality of label adhesion.

[0033] See Figure 3 , Figure 4 and Figure 5 In this system, the two ends of the pressure roller 4 are rotatably connected to the adjusting slide rod 51, and the outer circumference of the pressure roller 4 is set as a smooth arc surface. After the packaging bag and label are affixed, the rotational connection between the two ends of the adjusting slide rod 51 and the pressure roller 4 ensures that the label can be tightly adhered to the surface of the packaging bag. The smooth arc surface of the outer circumference of the pressure roller 4 reduces friction when in contact with the packaging bag, improving the adhesion effect. After the packaging bag affixing is completed, the packaging bag continues to be smoothly conveyed forward along the conveyor belt 2 through the combined action of the conveyor belt 2, thereby ensuring that the labeled packaging bag smoothly enters the next process. The entire working principle and process are as follows: First, the pressure roller 4 rotates to affix the label to the packaging bag, and then the labeled packaging bag is moved forward by the conveyor belt 2, finally completing the conveying task.

[0034] See Figure 3 , Figure 4 and Figure 5A leveling mechanism is installed below the conveyor belt 2 and relative to the pressure roller 4. The leveling mechanism includes a mounting groove on the frame 1, a mounting plate 62 inside the mounting groove, an exhaust fan 61 on the mounting plate 62, an exhaust hole 620 on the mounting plate 62 and the exhaust fan 61 but located away from the exhaust fan 61, and a second adjusting component for adjusting the mounting plate 62. In the leveling mechanism, a negative pressure is created by the exhaust fan 61 in the mounting groove and the exhaust hole 620 located away from it, adsorbing the packaging bag onto the conveyor belt 2, ensuring its accurate and stable position during labeling. Through the coordinated work of these components, the equipment can effectively and accurately affix labels to the packaging bags, improving production efficiency and label adhesion quality.

[0035] See Figure 4 and Figure 5 A fixing screw 611 is provided at the connection between the mounting plate 62 and the exhaust fan 61. The fixing screw 611 passes through the connection between the exhaust fan 61 and the mounting plate 62. By providing a fixing screw 611 at the connection between the mounting plate 62 and the exhaust fan 61, the exhaust fan 61 can be firmly installed on the mounting plate 62. The fixing screw 611 passing through the exhaust fan 61 and the mounting plate 62 ensures that the exhaust fan 61 operates stably during operation and will not loosen or shift. The working principle is as follows: when the exhaust fan 61 operates and generates negative pressure, air or gas can be drawn in through the impeller inside the exhaust fan 61 and discharged through the outlet of the exhaust fan 61, realizing the functions of exhaust and ventilation. At the same time, the tight connection between the mounting plate 62 and the fixing screw 611 ensures the overall structural stability and sealing of the exhaust fan 61, allowing the fan to work more efficiently without being affected by vibration or loosening, thereby ensuring the long-term reliable operation of the equipment and improving work efficiency and safety.

[0036] See Figure 4 and Figure 5 The inner diameter of the exhaust port 620 is smaller than the exhaust port of the exhaust fan 61, and the inner wall of each exhaust port 620 is coated with an electrostatic coating. The smaller inner diameter of the exhaust port 620 causes airflow to contract upon entering the exhaust port 620, enhancing the local vortex effect and thus improving air purification efficiency. Simultaneously, the electrostatic coating on the inner wall of the exhaust port 620 creates a charged surface that attracts and captures charged particles, further enhancing the filtration effect. This design process ensures that airflow enters through a well-designed airflow channel and then captures pollutants through the charged exhaust ports 620, preventing pollution of the surrounding environment during exhaust by the exhaust fan 61.

[0037] See Figure 2 , Figure 3 , Figure 4 andFigure 5 The second adjustment component includes a support plate 711 fixedly mounted on one side of the mounting groove, a screw 71 connected to the support plate 711, a movable block 72 fixedly mounted on one side of the lower end face of the mounting plate 62 and connected to the screw 71, a threaded sleeve 721 disposed at the connection between the movable block 72 and the screw 71, a drive motor 8 for driving the screw 71, a slider 621 fixedly mounted on the other side of the mounting plate 62, and a slide rail 6211 disposed on the mounting groove and adapted to the slider 621. A ball bearing is provided at the connection between the screw 71 and the support plate 711. The second adjustment component is connected to the screw 71 via the support plate 711 fixedly mounted on one side of the mounting groove. The support plate 711 and the screw 71 are connected by a ball bearing, allowing the screw 71 to rotate smoothly. The threaded sleeve 721 is mounted on the screw 71 and is fixedly connected to the movable block 72. The movable block 72 moves linearly along the screw 71 under the drive of the drive motor 8. A slider 621 parallel to the mounting plate 62 is fixed on the other side of the mounting plate 62. The slider 621 is slidably mounted in the slide rail 6211 on the mounting groove. When the drive motor 8 starts and the drive screw 71 rotates, the screw 71 drives the screw sleeve 721 and the moving block 72 fixed thereto to move along its axial direction, thereby moving the mounting plate 62 in the horizontal direction to meet different maintenance needs. It can also effectively clean impurities in the vent hole 620, keeping the equipment clean and operating efficiently.

[0038] See Figure 5 The output shaft of the drive motor 8 is connected to the screw 71. The drive motor 8 is fixedly mounted on the outside of the support plate 711. Fixing the drive motor 8 on the outside of the support plate 711 ensures that the drive motor 8 works stably. The drive motor 8 is set as a forward and reverse motor. The setting of the forward and reverse motor drive motor 8 allows the output shaft to rotate in both directions, thereby driving the screw 71 to rotate in both directions. This allows for flexible adjustment of the working state of the equipment and improves work efficiency.

[0039] The implementation principle of the label adjustment structure of the labeling machine in this application embodiment is as follows: During use, when it is necessary to change the pressing pressure, the position of the adjusting nut 511 on the adjusting slide rod 51 is rotated, causing the adjusting slide rod 51 to move relative to the guide plate 33 and the pressure roller 4, thereby changing the distance between the pressure roller 4 and the packaging bag, and thus adjusting the pressure on the packaging bag, so that the label can be more tightly attached to the packaging bag. The support roller 31 and the conveying roller 32 on the frame 1 work together. The support roller 31 is used to hold the label roll and facilitate... The conveyor roller 32 drives the label roll forward, and the pressure roller 4 rotates to label the packaging bag. During this process, a fixing screw 611 is set at the connection between the mounting plate 62 and the exhaust fan 61, so that the exhaust fan 61 can be firmly installed on the mounting plate 62. The fixing screw 611 passes through the exhaust fan 61 and the mounting plate 62 to ensure that the exhaust fan 61 operates stably during operation and will not loosen or shift. Then, the labeled packaging bag is moved forward by the conveyor belt 2, and the conveying task is finally completed.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A label adjustment structure for a labeling machine, characterized in that: Includes a frame (1), a conveyor belt (2) disposed on the frame (1), air holes (21) evenly disposed on the conveyor belt (2), a support roller (31) disposed on one side of the frame (1), a plurality of conveyor rollers (32) disposed relative to the discharge direction of the support roller (31), a guide plate (33) disposed below the discharge direction of the conveyor rollers (32), a pressure roller (4) disposed below the guide plate (33) and disposed relative to the conveyor belt (2), a first adjustment component disposed at the connection between the pressure roller (4) and the guide plate (33), and a leveling mechanism disposed below the conveyor belt (2) and disposed relative to the pressure roller (4); The leveling mechanism includes a mounting groove on the frame (1), a mounting plate (62) in the inner cavity of the mounting groove, an exhaust fan (61) on the mounting plate (62), an exhaust hole (620) on the mounting plate (62) and the exhaust fan (61) and located away from the exhaust fan (61), and a second adjustment component for adjusting the mounting plate (62).

2. The label adjustment structure of a labeling machine according to claim 1, characterized in that: The first adjustment component includes adjustment slide rods (51) at both ends of the pressure roller (4) and adjustment nuts (511) provided at the connection between the adjustment slide rods (51) and the guide plate (33). The adjustment nuts (511) are connected to the guide plate (33) through a threaded structure, and the adjustment slide rods (51) are provided with sliding holes that are adapted to the adjustment nuts (511).

3. The label adjustment structure of a labeling machine according to claim 2, characterized in that: The two ends of the pressure roller (4) are rotatably connected to the adjusting slide rod (51), and the outer periphery of the pressure roller (4) is set as a smooth arc surface.

4. The label adjustment structure of a labeling machine according to claim 3, characterized in that: A fixing screw (611) is provided at the connection between the mounting plate (62) and the exhaust fan (61), and the fixing screw (611) passes through the connection between the exhaust fan (61) and the mounting plate (62).

5. The label adjustment structure of a labeling machine according to claim 4, characterized in that: The inner diameter of the exhaust port (620) is smaller than the exhaust port of the exhaust fan (61), and the inner wall of each exhaust port (620) is coated with an electrostatic coating.

6. The label adjustment structure of a labeling machine according to claim 5, characterized in that: The second adjustment component includes a support plate (711) fixedly disposed on one side of the mounting groove, a screw (71) connected to the support plate (711), a movable block (72) fixedly disposed on one side of the lower end face of the mounting plate (62) and connected to the screw (71), a threaded sleeve (721) disposed at the connection between the movable block (72) and the screw (71), a drive motor (8) for driving the screw (71), a slider (621) fixedly disposed on the other side of the mounting plate (62), and a slide rail (6211) disposed on the mounting groove and adapted to the slider (621).

7. The label adjustment structure of a labeling machine according to claim 6, characterized in that: A ball bearing is provided at the connection between the screw (71) and the support plate (711).

8. The label adjustment structure of a labeling machine according to claim 7, characterized in that: The output shaft of the drive motor (8) is connected to the screw (71), and the drive motor (8) is fixedly installed on the outside of the support plate (711).

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