A kind of not dry adhesive label printing equipment

Abstract

This utility model belongs to the field of self-adhesive label technology, and in particular to a self-adhesive label printing equipment, including a frame. A printing device is installed inside the frame, including a printing machine. The printing machine prints self-adhesive labels using an inkjet imaging system. A drying device dries the printed self-adhesive labels. A fan draws in air, and a filter layer in the air inlet pipe filters the drawn air. The fan's outlet is fixedly connected to a guide plate via a pipe, delivering the filtered air to the guide plate. The heat generated by infrared tubes below the guide plate is blown onto the surface of the self-adhesive labels. Multiple infrared tube arrays are distributed on the support frame to ensure uniform heat coverage of the label surface, avoiding localized overheating or uneven drying. The array spacing needs to be optimized according to the label width and drying requirements to achieve the best drying effect.

Description

Technical Field

[0001] This utility model relates to the field of self-adhesive label technology, and in particular to a self-adhesive label printing device. Background Technology

[0002] Self-adhesive labels are composite materials composed of a face stock, an adhesive layer, and a backing paper. They are characterized by strong adhesion and ease of use, and are widely used in product identification, logistics management, pharmaceutical packaging, food labeling, and other fields. The printing process typically includes pattern printing, drying, die-cutting, and waste removal. Self-adhesive label printing is carried out using a printing press. The printhead assembly of the printing press integrates a forward wheel, also known as a drive wheel or feed wheel, which is in direct contact with the label surface. During the printing process, the forward wheel contacts the paper and applies a pushing force, causing the label to move forward continuously, ensuring accurate printing position. After printing, the label is dried using a fan and heating tube.

[0003] In existing technologies, self-adhesive labels need to be pressed down by a flat paper roller and a spring before entering the printing nozzle, which makes it difficult to achieve precise control of paper pressure. In addition, the drying method of the fan and heating tube combination mainly relies on hot air convection, which has a slow heating speed and high energy consumption. Therefore, a self-adhesive label printing equipment is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In order to solve the technical problems in the prior art, where self-adhesive labels need to be pressed down by a flat paper roller and spring before entering the printing nozzle, making it difficult to achieve precise control of paper pressure, and the drying method of the combination of fan and heating tube mainly relies on hot air convection, resulting in a slow heating speed, this application provides a self-adhesive label printing device.

[0005] The present invention discloses a self-adhesive label printing device, including a frame, and a printing device is arranged inside the frame. The printing device includes a printing machine, which prints self-adhesive labels through an inkjet imaging system.

[0006] The upper surface of the frame is provided with a drying device, which includes an infrared tube that dries the printed self-adhesive labels by means of radiation heating.

[0007] Preferably, the printing device further includes a roll, which is placed in a groove on the upper left side of the frame. An electric push rod is fixedly installed on the upper surface of the frame, and one end of the telescopic rod of the electric push rod is fixedly installed on the top upper surface of the printing machine.

[0008] With the above technical solution, the roll is placed in the groove on the upper left side of the frame for easy replacement. Self-adhesive labels are wound on the roll. It is fixed to the frame and the electric push rod, which is then fixed to the printing press via the extension rod of the electric push rod. The extension and retraction of the extension rod drives the printing press to rise and fall, adapting to label materials of different thicknesses and ensuring the optimal distance between the printhead and the label surface, thus improving printing accuracy and quality. The printing press uses an inkjet imaging system to print self-adhesive labels with high precision. Its printhead assembly integrates a forward wheel, also known as a drive wheel or feed wheel, which directly contacts the label surface. The lower surface of the label contacts the frame. During printing, the forward wheel contacts the paper and applies a pushing force, causing the label to move continuously forward, ensuring accurate printing position. The frame is made of carbon steel with a powder-coated or galvanized surface. The roll can be made of aluminum alloy with an anodized surface. The electric push rod can be a LINAK LA36 model, and it is equipped with a controller and encoder for precise control.

[0009] Preferably, a motor is fixedly mounted on the bottom front surface of the frame, the output shaft of the motor is rotatably connected to the bottom front surface of the frame through a bearing, and a rotating rod is fixedly mounted on the output shaft of the motor, the rotating rod being rotatably connected to the inner wall of the rear groove of the frame through a bearing.

[0010] The above technical solution involves fixing the motor to the frame. The motor model can be Siemens 1FL6042-2AF21-1AA1, equipped with a servo driver and PLC controller to achieve precise speed and position control. The motor's output shaft is rotatably connected to the frame via bearings to ensure its rotational stability. The rotating rod is also rotatably connected to the frame via bearings to ensure its rotational stability. The rotating rod can be made of 45# steel, which has good comprehensive mechanical properties, including high strength, toughness, and wear resistance, making it suitable for mechanical parts that bear large loads and frequent movements.

[0011] Preferably, a screw is rotatably connected to the inner wall of the groove of the frame via a bearing, the rotating rod drives the screw to rotate via a bevel gear set, a slider is threadedly connected to the outer surface of the screw, the slider is slidably connected to the inner wall of the limiting groove of the frame, and a pressure roller is rotatably connected to the outer side of the slider via a bearing.

[0012] Through the above technical solution, the screw is rotatably connected to the frame via bearings to ensure its rotational stability. Two screws are provided, and the rotating rod drives both screws to rotate synchronously via bevel gear sets at both ends. The screws are threadedly connected to the slider, driving its rotation and lifting. However, because the slider is slidably connected to the frame, it is limited, allowing only lifting. The slider and the pressure roller are rotatably connected via bearings to ensure their rotational stability. The screw material can be 38CrMoAl, a nitrided steel with excellent wear resistance, fatigue resistance, and corrosion resistance, suitable for high-precision transmission components. After nitriding, the surface hardness can reach HRC60 or higher, significantly extending its service life. The slider material can be 40Cr, which, after tempering, has good strength and toughness, as well as a certain degree of wear resistance, suitable for sliding components that cooperate with the screw. The pressure roller can be made of polyurethane-coated roller, ensuring pressure while maximizing the protection of the self-adhesive label surface, preventing damage or contamination.

[0013] Preferably, the drying device further includes a guide plate, which is fixedly installed on the upper right side surface of the frame. A fan is fixedly installed in the bracket groove of the guide plate. The air inlet end of the fan is fixedly connected to an air inlet pipe with a filter layer, and the air outlet end of the fan is fixedly connected to the upper surface of the guide plate through a pipe.

[0014] The above technical solution involves fixing a baffle plate to the frame. The baffle plate has a semi-circular cross-section with multiple through holes on its lower surface. The baffle plate is fixedly installed to the fan. The fan's inlet is connected to an inlet duct to draw in air. A filter layer inside the inlet duct filters the drawn-in air. The inlet duct can be made of stainless steel, and the filter layer can be made of activated carbon composite filter mesh. This filter not only removes solid particles but also adsorbs odors and harmful gases from the air. The fan's outlet is fixedly connected to the baffle plate via a pipe, delivering the filtered air to the baffle plate. The heat generated by the infrared tube below the baffle plate is then blown onto the surface of the self-adhesive label. The baffle plate is also made of stainless steel. The fan model can be EBM-PapstR4E310-AK07-12, and a frequency converter is provided to adjust the airflow and ensure drying effect.

[0015] Preferably, a support frame is fixedly installed on the inner wall of the frame, and multiple infrared tube arrays are distributed on the inner sidewall of the support frame.

[0016] The above technical solution involves fixing the frame and support frame together. Multiple infrared tube arrays are distributed on the support frame to ensure that the heat evenly covers the label surface, avoiding local overheating or uneven drying. The array spacing needs to be optimized according to the label width and drying requirements to achieve the best drying effect. The support frame is also made of stainless steel, and the infrared tubes can be Philips IR T150. Precise temperature control is achieved through a temperature controller and solid-state relay.

[0017] The beneficial effects of this utility model are as follows: 1. By setting up a printing device, self-adhesive labels are printed. Self-adhesive labels are wound on a roll. The telescopic rod of the electric push rod is fixedly installed with the printing machine. The extension and retraction of the telescopic rod drives the printing machine to rise and fall, ensuring that the printhead and the label surface maintain the optimal distance. There are two screws. The rotating rod drives the two screws to rotate synchronously through the bevel gear sets at both ends. The screws are threadedly connected to the slider, driving it to rotate and rise. However, since the slider is slidably connected to the frame, it is limited, so that it only rises and falls. The pressure roller can be made of polyurethane coated roller, which ensures the pressure force while protecting the surface of the self-adhesive label to the maximum extent and preventing damage or contamination. This solves the technical problem in the prior art that the self-adhesive label needs to be pressed down by a flat paper roller and spring before entering the printing printhead, making it difficult to achieve precise control of paper pressure.

[0018] 2. By setting up a drying device, the printed self-adhesive labels are dried. A fan draws in air, and the filter layer in the air inlet pipe filters the drawn air. The air outlet of the fan is fixedly connected to the guide plate through a pipe, and the filtered air is delivered to the guide plate. The heat generated by the infrared tubes below the guide plate is blown onto the surface of the self-adhesive label. Multiple infrared tube arrays are distributed on the support frame to ensure that the heat evenly covers the label surface and avoids local overheating or uneven drying. The array spacing needs to be optimized according to the label width and drying requirements to achieve the best drying effect. This solves the technical problems of existing technologies, where self-adhesive labels need to be pressed down by a flat paper roller and spring before entering the printing nozzle, making it difficult to achieve precise control of paper pressure. In addition, the drying method of the fan and heating tube combination mainly relies on hot air convection, which has a slow heating speed and high energy consumption. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a self-adhesive label printing device proposed in this utility model. Figure 2 A perspective view of the electric push rod structure of a self-adhesive label printing equipment proposed in this utility model; Figure 3 This is a perspective view of the slider structure of a self-adhesive label printing device proposed in this utility model. Figure 4A perspective view of the guide plate structure of a self-adhesive label printing equipment proposed in this utility model; Figure 5 This is a perspective view of the fan structure of a self-adhesive label printing equipment proposed in this utility model.

[0020] In the diagram: 1. Frame; 2. Roller; 21. Electric push rod; 22. Printing press; 3. Motor; 31. Rotating rod; 4. Screw; 41. Slider; 42. Pressure roller; 5. Guide plate; 51. Fan; 52. Air inlet pipe; 6. Support frame; 61. Infrared tube. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-5 A self-adhesive label printing device includes a frame 1, and a printing device is arranged inside the frame 1. The printing device includes a printing machine 22, which prints self-adhesive labels through an inkjet imaging system.

[0023] To drive the printing press 22 to rise and fall, the printing device also includes a roll 2, which is placed in a groove on the upper left side of the frame 1. An electric push rod 21 is fixedly installed on the upper surface of the frame 1. One end of the telescopic rod of the electric push rod 21 is fixedly installed on the top upper surface of the printing press 22. The roll 2 is placed in a groove on the upper left side of the frame 1 for easy replacement. Self-adhesive labels are wound on the roll 2. It is fixedly installed on the frame 1 and the electric push rod 21. The telescopic rod of the electric push rod 21 is fixedly installed on the printing press 22. The extension and retraction of the telescopic rod drives the printing press 22 to rise and fall to accommodate label materials of different thicknesses. To ensure optimal distance between the printhead and the label surface, improving printing accuracy and quality, the printing machine 22 uses an inkjet imaging system to perform high-precision printing on self-adhesive labels. Its printhead assembly integrates a forward wheel, also known as a drive wheel or feed wheel, which directly contacts the label surface. The lower surface of the label contacts the frame 1. During printing, the forward wheel contacts the paper and applies a pushing force, causing the label to move continuously forward, ensuring accurate printing position. The frame 1 is made of carbon steel with a powder-coated or galvanized surface. The roll 2 can be made of aluminum alloy with an anodized surface. The electric push rod 21 can be a LINAK LA36 model. It is also equipped with a controller and encoder for precise control.

[0024] To ensure the stability of the output shaft rotation of motor 3, motor 3 is fixedly mounted on the bottom front surface of frame 1. The output shaft of motor 3 is rotatably connected to the bottom front surface of frame 1 via bearings. A rotating rod 31 is fixedly mounted on the output shaft of motor 3. The rotating rod 31 is rotatably connected to the inner wall of the rear groove of frame 1 via bearings. The motor 3 is fixedly mounted on frame 1. The motor 3 can be a Siemens 1FL6042-2AF21-1AA1, equipped with a servo driver and PLC controller to achieve precise speed and position control. The output shaft of motor 3 is rotatably connected to frame 1 via bearings to ensure its rotational stability. The rotating rod 31 is rotatably connected to frame 1 via bearings to ensure its rotational stability. The material of rotating rod 31 can be 45 steel, which has good comprehensive mechanical properties, including high strength, toughness and wear resistance, and is suitable for mechanical parts that bear large loads and frequent movements.

[0025] To ensure the stability of the rotation of the pressure roller 42, a screw 4 is rotatably connected to the inner wall of the groove of the frame 1 via a bearing. A rotating rod 31 drives the screw 4 to rotate via a bevel gear set. A slider 41 is threadedly connected to the outer surface of the screw 4. The slider 41 is slidably connected to the inner wall of the limiting groove of the frame 1. The outer side of the slider 41 is rotatably connected to the pressure roller 42 via a bearing. The screw 4 is rotatably connected to the frame 1 via a bearing to ensure its rotational stability. Two screws 4 are provided. The rotating rod 31 drives the two screws 4 to rotate synchronously via bevel gear sets at both ends. The screws 4 are threadedly connected to the slider 41, driving its rotation and lifting. However, because the slider 41 is slidably connected to the frame 1, it is limited, causing it to only lift and lower. Block 41 and pressure roller 42 are rotatably connected by bearings to ensure their rotational stability. The screw 4 can be made of 38CrMoAl, a nitrided steel with excellent wear resistance, fatigue resistance and corrosion resistance, suitable for high-precision transmission components. After nitriding, the surface hardness can reach HRC60 or higher, which can significantly extend the service life. The slider 41 can be made of 40Cr, which has good strength and toughness after tempering and has a certain degree of wear resistance, suitable for sliding components that cooperate with screw 4. The pressure roller 42 can be made of polyurethane coated roller, which can protect the surface of self-adhesive labels to the maximum extent while ensuring the clamping force, preventing damage or contamination.

[0026] By setting up a printing device, self-adhesive labels are printed. Self-adhesive labels are wound on the roll 2. The telescopic rod of the electric push rod 21 is fixedly installed with the printing machine 22. The extension and retraction of the telescopic rod drives the printing machine 22 to rise and fall, ensuring that the printhead and the label surface maintain the optimal distance. There are two screws 4. The rotating rod 31 drives the two screws 4 to rotate synchronously through the bevel gear set at both ends. The screws 4 are threadedly connected to the slider 41, driving it to rotate and rise and fall. However, since the slider 41 is slidably connected to the frame 1, it is limited and only rises and falls. The material of the pressure roller 42 can be a polyurethane coated roller. While ensuring the pressure, it protects the surface of the self-adhesive label to the maximum extent and prevents damage or contamination. This solves the technical problem in the prior art that the self-adhesive label needs to be pressed down by a flat paper roller and spring before entering the printing printhead, which makes it difficult to achieve precise control of paper pressure.

[0027] In order to dry the printed self-adhesive labels, a drying device is provided on the upper surface of the frame 1. The drying device includes an infrared tube 61, which dries the printed self-adhesive labels by means of radiation heating.

[0028] To filter solid particles, the drying device also includes a guide plate 5, which is fixedly installed on the upper right side surface of the frame 1. A fan 51 is fixedly installed in the bracket groove of the guide plate 5. The air inlet end of the fan 51 is fixedly connected to an air inlet pipe 52 with a filter layer. The air outlet end of the fan 51 is fixedly connected to the upper surface of the guide plate 5 through a pipe. The guide plate 5 is fixedly installed and secured to the frame 1. The cross-section of the guide plate 5 is semi-circular, and multiple through holes are opened on its lower surface. The guide plate 5 is fixedly installed and secured to the fan 51. The air inlet end of the fan 51 is fixedly connected to the air inlet pipe 52 to draw in air. The internal filter layer filters the drawn-in air. The air inlet pipe 52 can be made of stainless steel, and the filter layer can be made of activated carbon composite filter. It can not only filter solid particles, but also adsorb odors and harmful gases in the air. The air outlet of the fan 51 is fixedly connected to the guide plate 5 through the pipe, and the filtered air is delivered to the guide plate 5. The heat generated by the infrared tube 61 below the guide plate 5 is blown onto the surface of the self-adhesive label. The guide plate 5 is also made of stainless steel. The model of the fan 51 can be EBM-PapstR4E310-AK07-12. It is also equipped with a frequency converter to adjust the air volume to ensure the drying effect.

[0029] To achieve precise temperature control, a support frame 6 is fixedly installed on the inner wall of frame 1. Multiple infrared tubes 61 are arrayed on the inner side wall of support frame 6. The support frame 6 is fixedly installed and secured by frame 1. The distribution of multiple infrared tubes 61 on support frame 6 ensures that heat is evenly distributed on the label surface, avoiding local overheating or uneven drying. The array spacing needs to be optimized according to the label width and drying requirements to achieve the best drying effect. The support frame 6 is also made of stainless steel. The infrared tubes 61 can be Philips IR T150. Precise temperature control is achieved through a temperature controller and solid-state relay.

[0030] By setting up a drying device, the printed self-adhesive labels are dried. The fan 51 draws in air, and the filter layer in the air inlet pipe 52 filters the drawn air. The air outlet of the fan 51 is fixedly connected to the guide plate 5 through a pipe, and the filtered air is delivered to the guide plate 5. The heat generated by the infrared tube 61 below the guide plate 5 is blown onto the surface of the self-adhesive label. Multiple infrared tubes 61 are arrayed on the support frame 6 to ensure that the heat is evenly covered on the label surface and to avoid local overheating or uneven drying. The array spacing needs to be optimized according to the label width and drying requirements to achieve the best drying effect. This solves the technical problems in the prior art, where the self-adhesive label needs to be pressed down by a flat paper roller and spring before entering the printing nozzle, which makes it difficult to achieve precise control of the paper pressure. In addition, the drying method of the fan and heating tube combination mainly relies on hot air convection, which has a slow heating speed and high energy consumption.

[0031] Working principle: The operator places the roller 2 wrapped with self-adhesive labels into the preset groove of the frame 1, and manually pulls out one end of the label so that it passes under the pressure roller 42. The control system starts the motor 3 through the PLC program, drives the rotating rod 31 to rotate, and drives the screw 4 to rotate through the bevel gear set, so that the slider 41 moves up and down in the limiting groove track of the frame 1, thereby adjusting the height of the pressure roller 42 until its surface is in close contact with the upper surface of the label, ensuring that the label remains flat and wrinkle-free during the printing process. The staff continues to guide the label to below the printhead of the printing machine 22. Then, the control system activates the electric push rod 21, which adjusts the height of the printing machine 22 through precise displacement of the telescopic rod, keeping the distance between the printhead and the label surface within the optimal working range, preparing for subsequent inkjet imaging. The control system issues a command, the inkjet imaging system starts, and the printing machine 22 performs high-precision printing on the label through the printhead assembly. The advance wheel integrated inside the printhead directly contacts the label surface and applies a continuous pushing force, driving the label to move forward stably. The advance wheel rotates continuously during the printing process, providing linear driving force to the label and ensuring that the label moves forward at a uniform speed. The encoder monitors the moving speed and position of the label in real time and feeds the data back to the PLC controller, forming a closed-loop control. The PLC dynamically adjusts the inkjet timing and ink volume according to the feedback signal to prevent printing misalignment or blurring due to speed fluctuations. The specific model of the printing machine 22 can be selected according to the actual situation. After printing, the labels enter the drying area. Multiple arrays of infrared tubes 61 are activated to rapidly heat the label surface through radiation heating, causing the ink to solidify quickly. The temperature controller monitors the temperature of the drying area in real time and adjusts the power of the infrared tubes 61 through a solid-state relay to ensure that the temperature is stable within the set range. At the same time, the fan 51 sends outside air through the air inlet pipe 52 to the guide plate 5 to form forced convection, which blows heat evenly to the label surface, improving drying efficiency and preventing local overheating. After drying, the labels are inspected for printing quality using a visual inspection system. The system automatically identifies defects and marks or rejects unqualified products. This system is existing technology, so it will not be described in detail here. The qualified labels enter the subsequent die-cutting mechanism, where they are die-cut according to the preset shape. They are then rewound into a roll by the take-up shaft 2 for easy packaging or use. This mechanism is also existing technology.

[0032] The bearings should be lubricated with lithium-based grease every 3 months to ensure smooth rotation; the screw 4 and slider 41 should be lubricated with anti-wear grease monthly to reduce frictional resistance; the gears should be lubricated with gear oil regularly to avoid dry friction. Regularly check whether the fan 51, motor 3, and electric push rod 21 are operating normally, and whether there are any abnormal noises or overheating. Calibrate the temperature controller and encoder every 6 months, and conduct a comprehensive overhaul of the electrical circuits and mechanical parts every year. If blurry printing occurs, check if the printhead is clogged and clean or replace it. If the drying is uneven, check if the infrared tube 61 is damaged or if the guide plate 5 is clogged. If the label is not conveyed smoothly, adjust the pressure of the pressure roller 42 or check the wear of the forward wheel.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A self-adhesive label printing apparatus comprising a frame (1), characterized in that: The frame (1) is equipped with a printing device, which includes a printing press (22) that prints self-adhesive labels using an inkjet imaging system. The upper surface of the frame (1) is provided with a drying device, which includes an infrared tube (61) and the infrared tube (61) dries the printed self-adhesive label by means of radiation heating.

2. The self-adhesive label printing equipment according to claim 1, characterized in that: The printing device also includes a roll (2), which is placed in a groove on the upper left side of the frame (1). An electric push rod (21) is fixedly installed on the upper surface of the frame (1), and one end of the telescopic rod of the electric push rod (21) is fixedly installed on the top upper surface of the printing machine (22).

3. The self-adhesive label printing equipment according to claim 1, characterized in that: A motor (3) is fixedly installed on the front surface of the bottom end of the frame (1). The output shaft of the motor (3) is rotatably connected to the front surface of the bottom end of the frame (1) through a bearing. A rotating rod (31) is fixedly installed on the output shaft of the motor (3). The rotating rod (31) is rotatably connected to the inner wall of the rear groove of the frame (1) through a bearing.

4. The self-adhesive label printing equipment according to claim 3, characterized in that: The inner wall of the groove of the frame (1) is rotatably connected to a screw (4) via a bearing. The rotating rod (31) drives the screw (4) to rotate via a bevel gear set. The outer surface of the screw (4) is threadedly connected to a slider (41). The slider (41) is slidably connected to the inner wall of the limiting groove of the frame (1). The outer side of the slider (41) is rotatably connected to a pressure roller (42) via a bearing.

5. The self-adhesive label printing equipment according to claim 1, characterized in that: The drying device also includes a guide plate (5), which is fixedly installed on the upper right side surface of the frame (1). A fan (51) is fixedly installed in the bracket groove of the guide plate (5). The air inlet end of the fan (51) is fixedly connected to an air inlet pipe (52) with a filter layer. The air outlet end of the fan (51) is fixedly connected to the upper surface of the guide plate (5) through a pipe.

6. The self-adhesive label printing equipment according to claim 1, characterized in that: A support frame (6) is fixedly installed on the inner wall of the frame (1), and multiple infrared tubes (61) arrays are distributed on the inner side wall of the support frame (6).

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