Label pasting method and device

Abstract

The invention relates to the technical field of automatic equipment, in particular to a method and device for pasting a label, and the method for pasting the label comprises the following steps: automatically feeding and positioning the label, taking out the label from a material stack, and preliminarily positioning; secondary positioning of the label: positioning the label, and determining that the direction and the position of the label are correct; automatic dispensing: dispensing on the surface of the part to be pasted with the label; a label is pasted, specifically, the label is pasted to the surface of the part; quality inspection: detecting whether the pasting quality and direction of the label meet requirements or not; marking and code scanning are conducted, specifically, the pasted label is marked, and code scanning is conducted to bind serial number information. According to the scheme, the defects that in the prior art, a manual or semi-automatic label pasting mode is low in efficiency and unstable in quality are overcome, full-process automation of label pasting is achieved, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automation equipment, and in particular to a method and a device for pasting a label. Background Art

[0002] In modern industrial production, label pasting is a common process, especially in the process of automated production and assembly of products. Labels usually contain key production and assembly information, such as barcodes, QR codes or text characters, which are essential for product tracking and management.

[0003] However, most of the existing methods of label pasting rely on manual or semi-automatic methods, which have many shortcomings. First, manual or semi-automatic label pasting methods require a lot of human resources. Operators need to paste the labels to the product surface one by one, which is not only time-consuming and labor-intensive, but also prone to human errors, resulting in low production efficiency and unstable quality. Secondly, it is difficult to control the uniformity of the amount of glue in the manual glue dripping operation. Too much glue may cause overflow, contaminate the product surface, and even affect the appearance and performance of the product; too little glue may cause the label to be loosely pasted and easy to fall off. Finally, during the label marking process, it is often necessary to manually adjust the label to the correct direction before marking, which not only increases labor costs, but also prolongs the production cycle, and is prone to direction adjustment errors, affecting subsequent scanning and reading. Summary of the invention

[0004] The present invention provides a method and device for pasting a label, which are used to solve the defects of low efficiency and unstable quality of manual or semi-automatic label pasting methods in the prior art, realize the full process automation of label pasting, and improve production efficiency and product quality.

[0005] The present invention provides a method for pasting a label, comprising: automatic label feeding and positioning, taking the label out of a material stack and preliminarily positioning it; secondary label positioning, positioning the label to determine that the direction and position of the label are correct; automatic glue dispensing, dispensing glue on the surface of a part to which the label is to be pasted; label pasting, pasting the label to the surface of the part; quality inspection, detecting whether the pasting quality and direction of the label meet the requirements; marking and code scanning, marking the pasted label and scanning the code to bind serial number information.

[0006] According to one embodiment of the present invention, the step of automatically loading and positioning the sign includes: the sign is stacked in the form of a stack; the bottom of the stack is equipped with a through-beam sensor, and each time a sign is taken away, the stack automatically moves up a distance of the thickness of the sign.

[0007] According to one embodiment of the present invention, the step of secondary positioning of the sign includes: positioning the sign by a mechanical positioning device and a visual detection system; if the direction of the sign is incorrect, adjusting it to the correct direction by a rotating mechanism.

[0008] According to one embodiment of the present invention, the automatic dispensing step includes: moving the part to a dispensing station by a multi-axis robot; dispensing the part by a dispensing head; and checking the dispensing quality by a visual inspection system after the dispensing is completed.

[0009] According to one embodiment of the present invention, the step of pasting the label includes: moving a suction mechanism to the label position through an electric servo system; sucking the label through a suction cup of the suction mechanism; moving the label to the surface of the part through a multi-axis robot; and applying pressure to the label through a pressure control system to paste the label to a designated position.

[0010] According to one embodiment of the present invention, the quality inspection step includes: detecting the position and direction of the sign through a camera and an image processing program; if the position and direction of the sign do not meet the requirements, sending the part to a defective product processing area.

[0011] According to one embodiment of the present invention, the steps of marking and scanning include: moving the parts to a marking station by a multi-axis robot; automatically marking and scanning the parts to bind serial number information; and sending the parts to a conveyor line or a designated location after marking and scanning are completed.

[0012] According to one embodiment of the present invention, the method is applicable to the pasting of various types of labels, including rivet labels, adhesive-backed labels and glue-pasted labels.

[0013] The present invention also provides a device for pasting labels, which is used to execute the method for pasting labels of the above-mentioned embodiment; the device includes: a label feeding system, which is used to take out the label from the material stack and preliminarily position it; a label secondary positioning system, which is used to accurately position the label; an automatic glue dispensing system, which is used to accurately dispense glue on the surface of the part; a label suction and pasting system, which is used to paste the label to the surface of the part; a glue and label pasting inspection system, which is used to detect the pasting quality and direction of the label; a marking and scanning system, which is used to automatically mark the pasted label and scan the code to bind the serial number information.

[0014] According to one embodiment of the present invention, the label loading system includes a material stack, a beam sensor and an electric servo system; and / or, the label secondary positioning system includes a mechanical positioning device, a visual detection system and a rotating mechanism; and / or, the automatic dispensing system includes a multi-axis robot, a dispensing head and a visual detection system; and / or, the label suction and pasting system includes an electric servo system, a suction cup and a pressure control system; and / or, the glue and label pasting inspection system includes a camera and an image processing program; and / or, the marking and code scanning system includes a multi-axis robot, a marking machine and a code scanner.

[0015] The method and device for pasting labels provided by the present invention realize the automation of the whole process from loading to final labeling and scanning of labels through a series of automated steps. First, a mechanical arm or a special picking device is used to automatically take out the label from the material stack and perform preliminary positioning, which reduces the need for manual operation and improves the speed and accuracy of loading; then, a visual recognition system is used to perform secondary precise positioning of the label to ensure that its direction is correct and avoid problems caused by wrong direction; then, a precision dispensing device is used to apply an appropriate amount of glue to the surface of the part according to preset parameters, which solves the problem that it is difficult to control the uniformity of manual glue dripping, prevents excessive glue from overflowing and contaminating the product, and prevents the situation where too little glue causes loose pasting; then, the label is pressed steadily and accurately onto the surface of the glued part by a mechanical arm or other automated tools, realizing high-precision control of the pasting position of the label; then, the pasted label is quality inspected by means of optical detection equipment and other means, unqualified products are discovered and eliminated in time, and the quality of the product is ensured; finally, the pasted label is encoded with information (such as printing a barcode / QR code) and associated with the corresponding product information by scanning, which is convenient for subsequent logistics management and product traceability. The entire process not only overcomes the problems of low efficiency and easy errors in traditional manual or semi-automatic label pasting methods, but also greatly improves work efficiency and yield rate, reduces production costs, and makes the production line more flexible and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is one of the flow charts of the method for pasting a label provided by the present invention.

[0018] Figure 2 This is the second flow chart of the method for sticking a label provided by the present invention.

[0019] Figure 3 This is the third flow chart of the method for sticking a label provided by the present invention.

[0020] Figure 4 The present invention is a schematic structural diagram of a device for sticking a label provided by the present invention.

[0021] Figure 5 The present invention is a schematic structural diagram of a label feeding system and a label secondary positioning system of a label pasting device provided by the present invention.

[0022] Figure 6 The invention is a schematic diagram of the structure of the glue and label pasting inspection system and the marking and code scanning system of the label pasting device provided by the invention.

[0023] Reference numerals: 11. Material stack; 12. Through-beam sensor; 13. Mechanical positioning device; 14. Multi-axis robot; 15. Glue dispensing head; 16. Suction cup; 17. Camera; 18. Marking machine. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0026] Combine the following Figures 1 to 6 The specific implementation of the method and device for sticking labels of the present invention is described.

[0027] Figure 1 It is one of the flow charts of the method for pasting a label provided by the present invention, such as Figure 1 As shown, the method includes the following: Step 110: Automatically load and position the label, take the label out of the material stack 11 and preliminarily position it. Specifically, one or more robotic arms cooperate with suction cups 16, grippers and other tools to accurately grab a single label from the material stack 11 where the labels are stored, and place it on a preset workbench for preliminary position adjustment, ensuring that the label can be accurately taken out and placed in a position suitable for subsequent processing.

[0028] Step 120, the sign is repositioned to determine whether the sign is in the correct direction and position. Specifically, a high-precision visual recognition system (such as a CCD camera 17) is used to capture the sign image, and then the computer software analyzes the image data to determine the deviation between the current specific orientation of the sign and the expected orientation. Based on the analysis results, the control system will command the mechanical device to adjust the sign until its orientation and position fully meet the requirements.

[0029] Step 130, automatic glue dispensing, dispensing glue on the surface of the part to be pasted with the label. Specifically, a precisely controlled glue dispensing machine is used to evenly apply an appropriate amount of adhesive to the specified area of ​​the part according to the pre-set trajectory and glue quantity parameters. This process ensures the consistency of glue distribution, avoids excessive or insufficient glue, and thus ensures a good pasting effect.

[0030] Step 140, label pasting, pasting the label onto the surface of the part. Specifically, the label is pressed onto the surface of the part on which the adhesive has been applied after precise positioning. To ensure the best pasting effect, the pressure mechanism of the robot can maintain a certain pressure for a period of time to help the adhesive fully contact and solidify.

[0031] Step 150: Quality inspection to check whether the quality and direction of the label are in compliance with the requirements. Specifically, optical inspection equipment (such as a camera system) installed on the production line is used to conduct a comprehensive inspection of the products that have completed the pasting operation, including but not limited to the flatness of the label, the presence of bubbles, and the edge warping. If any non-compliance is found, the product will be marked for further processing or directly rejected.

[0032] Step 160, marking and scanning, marking the pasted label and scanning the label to bind the serial number information. Specifically, a laser marking machine 18 or other type of printer is used to print barcodes, QR codes and other identification information on the label; then, these codes are read by a scanning device and associated with the unique serial number of the product, so as to realize the electronic management of product information, facilitate subsequent quality tracking, and also provide convenience for inventory management and logistics distribution.

[0033] Through the above steps, the present invention effectively solves the problems of low efficiency and unstable quality existing in the traditional manual or semi-automatic label pasting process, realizes the full automation of label pasting, and significantly improves production efficiency and product quality.

[0034] Furthermore, according to a method for pasting a label of the present invention, in the step of automatically feeding and positioning the label, the method comprises: Step 111, the signs are stacked in the form of a stack 11. Specifically, the signs are neatly stacked in a certain order and direction in a specially designed stack 11 container, preferably vertically stacked. The container preferably has a fixed size and structure to ensure that the signs can be stably arranged vertically and are convenient for a robot arm or other automated equipment to perform a grabbing operation.

[0035] Step 112, the bottom of the stack 11 is equipped with a through-beam sensor 12, and each time a label is taken away, the stack 11 automatically moves up a distance of the label thickness. Specifically, a group of through-beam photoelectric sensors are installed at the bottom of the stack 11 container to detect the position of the bottom label.

[0036] When the robot arm takes out a label from the stack 11, the through-beam sensor 12 will immediately sense that the label has been removed, and trigger the lifting mechanism under the stack 11 through the control system, so that the entire stack 11 moves upward by a distance equivalent to the thickness of a single label. The next label to be taken is always at the same height, which makes it convenient for the robot arm to repeat the same grabbing action without adjusting its movement path. In addition, it can effectively avoid the situation where multiple labels are taken out at the same time due to excessive friction between the labels, thereby ensuring that only one label is accurately taken out each time.

[0037] Furthermore, according to a method for pasting a sign of the present invention, in the step of secondary positioning of the sign, the method includes: Step 121, position the sign through the mechanical positioning device 13 and the visual detection system. Specifically, first use a high-precision visual detection system (such as a CCD camera 17) to capture the position and posture information of the sign. The visual detection system can quickly identify the outline, feature points and deviations of the sign relative to the predetermined position. Then, the above data is transmitted to the control system for analysis and processing. At the same time, the mechanical positioning device 13 (such as a precision guide rail, a pneumatic clamp, etc.) will fine-tune the position of the sign according to the feedback information of the visual system to ensure its accurate alignment on the X-axis and Y-axis. This step ensures that the sign can reach an accurate initial position before entering the next step of operation.

[0038] Step 122. If the direction of the sign is incorrect, adjust it to the correct direction through the rotating mechanism. Specifically, once the visual inspection system determines that the direction of the sign does not match the required direction, it will send an instruction to the control system, which then activates the rotating mechanism installed on the workbench or special positioning equipment. The rotating mechanism can be a turntable driven by a servo motor or other form of programmable rotating device. The rotating mechanism will accurately rotate the sign according to the calculated angle difference until its direction is exactly as required. In order to achieve this process, the rotating mechanism needs to have high-precision position control capabilities and be able to complete the rotation action smoothly and quickly to ensure that the sign will not be offset or damaged during the rotation process. In addition, after the rotation is completed, the visual inspection system can be used to confirm again whether the direction of the sign is correct to ensure the final positioning accuracy.

[0039] Furthermore, according to a method for pasting a label of the present invention, in the step of automatic glue dispensing, the method comprises: Step 131: Move the part to the glue dispensing station by the multi-axis robot 14. Specifically, a high-precision multi-axis robot 14 (such as a six-axis industrial robot) is used to grab the part to be processed and accurately move it to a pre-set glue dispensing working position.

[0040] Step 132, glue the parts by glue dispensing head 15. Specifically, the parts are accurately placed in place, and the glue dispensing head 15 on the glue dispensing device can start to apply glue according to the preset trajectory and parameters. The glue dispensing head 15 is preferably driven by a precision-controlled pneumatic or electric drive system to be able to finely control the glue amount and glue line width. The glue dispensing path can be customized by software programming according to the specific needs of different parts, so as to ensure that the glue can be evenly and uniformly distributed on the surface of the part.

[0041] Step 133: After the dispensing is completed, the quality of the dispensing is checked by the visual inspection system. Specifically, after the dispensing operation is completed, the visual inspection system (such as a high-resolution camera with image processing software) installed near the dispensing station will immediately capture the image of the part surface. The system can analyze the coverage area of ​​the glue, the continuity of the glue line, and whether the glue amount meets the preset standards. If problems such as uneven glue distribution, broken lines, or excessive / insufficient glue are found, the control system can issue an alarm and take corresponding measures, such as re-dispensing or marking defective products for subsequent processing.

[0042] The real-time quality monitoring mechanism helps to detect and correct potential problems in a timely manner, thus ensuring that each product can meet high quality standards. The highly automated and precise control of the glue dispensing process before the label is pasted not only improves production efficiency, but also significantly improves the quality and consistency of the final product.

[0043] Furthermore, according to a method for pasting a sign of the present invention, in the step of pasting the sign, the steps include: Step 141, move the suction mechanism to the sign position by an electric servo system. Specifically, a high-precision electric servo system (such as a servo motor with a linear guide or a rotary axis) is used to control the movement of the suction mechanism. The servo system is preferably able to provide fast and accurate position control to ensure that the suction mechanism can move accurately above the positioned sign. The motion parameters of the servo system (such as speed, acceleration and final position) can be pre-set by the control system to accommodate signs of different sizes and shapes.

[0044] Step 142, the label is sucked by the suction cup 16 of the suction mechanism. Specifically, when the suction mechanism reaches the corresponding grasping position of the label (such as directly above), the vacuum suction cup 16 thereon is activated to firmly absorb the label by generating negative pressure.

[0045] Preferably, the design of the suction cup 16 needs to take into account the characteristics of the material of the sign, and select a suitable type of suction cup 16 (for example, a soft suction cup 16 is suitable for fragile materials, and a hard suction cup 16 is suitable for more solid materials) to prevent damage to the sign. In addition, the number and layout of the suction cups 16 can be optimized according to the size and shape of the sign to ensure that the sign is grasped evenly and stably.

[0046] Step 143, the label is moved to the surface of the part by the multi-axis robot 14. Specifically, after the label is successfully absorbed, the multi-axis robot 14 (preferably an industrial robot with six or more axes) will smoothly move it to the position opposite to the surface of the part that has been glued according to the preset path. The robot's actions can be coordinated through a preset logic program to avoid collision with the label during movement.

[0047] Step 144, apply pressure to the sign through a pressure control system to stick the sign to the designated location. Specifically, after the sign is placed on the surface of the part, the robot end effector or a dedicated pressure device can apply a certain amount of pressure to cause the sign to be in close contact with the surface of the part and firmly bonded. The pressure value during the pressure application process is preferably precisely controlled by a pressure control system to ensure that neither the sign or part is damaged due to excessive pressure, nor the sign is not firmly pasted due to insufficient pressure. The pressure control system preferably also includes components such as force sensors, pneumatic or hydraulically driven clamping devices, etc., to achieve the best pasting effect, for example, a force sensor is set at the end of the robot to detect pressure changes. In addition, depending on the type of dispensing, the above-mentioned pressure application action preferably maintains a certain pressure time to ensure that the glue is fully diffused and the curing process begins.

[0048] Furthermore, according to a method for pasting a label of the present invention, in the step of quality inspection, the method comprises: Step 151, detect the position and direction of the sign through the camera 17 and the image processing program. Specifically, use a high-resolution industrial camera 17 to capture the surface image of the part with the sign attached. The camera 17 is preferably installed in a fixed position or on a movable platform to obtain a clear image from the best angle. Subsequently, the image data is transmitted to the image processing software for analysis. The image processing program uses a preset algorithm to identify the specific position, direction and deviation from the expected standard of the sign. The recognition logic of the above-mentioned preset algorithm preferably includes edge detection, feature matching, template comparison and other technologies to ensure that the sign is accurately placed in the specified position and in the correct direction.

[0049] Step 152: If the position and orientation of the label do not meet the requirements, the part is sent to the defective product processing area. Specifically, once the image processing program detects that there is a deviation in the position or orientation of the label, the control system responds accordingly. First, the system marks the product as a defective product and removes it from the main production line through a robotic arm or other conveying device. Then, the defective products are automatically guided to a specially established defective product processing area. In the defective product processing area, further manual inspection, correction attempts or direct disposal can be carried out. In addition, the data generated during the entire process (such as the number and type of defective products) will preferably be stored in the storage unit of the record and control system for subsequent quality control analysis and process improvement.

[0050] The above automated quality inspection process not only improves the speed and accuracy of inspection, but also reduces errors caused by human factors, thereby ensuring the high quality standards of the final product. At the same time, timely isolation of unqualified products also helps prevent them from entering the next process, preventing waste of resources and the spread of potential quality problems.

[0051] Furthermore, according to a method for pasting a label of the present invention, in the steps of marking and scanning the code, the method includes: Step 161, move the parts to the marking station by the multi-axis robot 14. Specifically, use a high-precision multi-axis robot 14 (such as a six-axis industrial robot) to grab the parts that have completed quality inspection and move them to the working position of the marking equipment. In order to adapt to parts of different sizes and shapes, the robot can be equipped with adjustable or replaceable clamps or suction cups 16 and their spare parts.

[0052] Step 162, automatically mark and scan the code to bind the serial number information. Specifically, when the parts are accurately placed in place, the automatic marking system (such as a laser marking machine 18 or an inkjet printer) will mark the label on the part according to the preset information content. It can be a barcode, a QR code, or other forms of product identification information. Subsequently, a high-speed scanner (such as a barcode scanner or a QR code reader) installed in the same workspace or nearby will immediately read the newly generated marking information and associate this information with the product's unique serial number through a software interface connected to the production management system. It not only facilitates subsequent quality tracking, but also provides convenience for inventory management and logistics distribution. The entire marking and scanning process is preferably automatically managed by the control system to ensure the accuracy and real-time nature of the data.

[0053] Step 163, after the marking and scanning are completed, the parts are sent to the conveyor line or designated location. Specifically, after the marking and scanning operations are successfully completed and the information has been correctly recorded, the multi-axis robot 14 takes the parts out of the marking station and places them at the next process on the production line, or directly sends them to the designated storage area or packaging station. If the production line uses a continuous conveyor belt, the robot can place the parts on the conveyor belt and let them naturally enter the next link; if it is a discrete production layout, the robot can send the parts to a predetermined tray or container for further processing.

[0054] According to a method for pasting a label of the present invention, the method can be applied to the pasting of various types of labels, including but not limited to rivet labels, adhesive labels and glue-pasted labels. In addition, for labels of different materials (metal, plastic, paper, etc.), suitable materials and sizes of suction cups 16 can be selected; for labels of different shapes and sizes, precise operation can be achieved by adjusting the algorithm of the visual detection system and the motion trajectory of the multi-axis robot 14. In addition, by integrating sensor technology and intelligent control systems, the entire pasting process can be highly automated and intelligent, thereby adapting to various complex production environments.

[0055] Specifically, for a label that needs to be fixed mechanically, such as by rivets, the method of the present invention can be appropriately adjusted to accommodate such a requirement. For example, in step 140, a specially designed pressing device can be used instead of a pressure control system to bond the label to the surface of the part, and the rivet installation can be completed by an automated riveting device.

[0056] For labels with self-adhesive backing, no additional dispensing process is required. In step 130, this step can be skipped directly. In step 140, the suction mechanism directly places the label on the surface of the part and ensures good contact between the label and the surface of the part through slight pressure. Since the self-adhesive label itself is sticky, it only needs to ensure that the placement is accurate to achieve effective adhesion.

[0057] The glue-pasted label is the situation described in the standard process of this invention, that is, a proper amount of glue is applied on the surface of the part by a glue dispenser, and then the label is accurately placed and pressed by a mechanical arm or suction mechanism to ensure that the label is firmly pasted. The entire process has been optimized from automatic feeding positioning, secondary precise positioning, glue dispensing, pasting to quality inspection, etc., and the label pasting work can be completed efficiently and with high quality.

[0058] like Figure 2 and Figure 3 As shown, according to the method for pasting a label in a preferred embodiment of the present invention, the label is first automatically loaded and positioned. The labels are stored in a stack 11 in a neatly stacked manner, and a through-beam sensor 12 is installed at the bottom to detect whether there is a label on the bottom layer. If there is no label, the stack 11 mechanism automatically moves up a distance of the thickness of the label until the label is detected. Subsequently, the electric servo system drives the suction mechanism to move above the label and firmly adsorbs the label through the suction cup 16. The visual inspection system analyzes the image of the label to determine whether its direction is correct; if not, it is adjusted to the correct direction through the rotating mechanism. Next, the electric servo system transports the label to the secondary positioning station. After the secondary positioning device further fine-tunes the position of the label, the suction mechanism grabs the label again and transports it to the position on the surface of the part to be pasted.

[0059] During the process of automatic gluing, pasting and marking of the label, the multi-axis robot 14 grabs the parts and moves them to the gluing station, and the gluing head 15 applies an appropriate amount of glue according to the preset trajectory. If the amount or position of the glue does not meet the requirements, the control system will mark the part as a defective product and send it to the defective product processing area; if it meets the requirements, proceed to the next step. The multi-axis robot 14 moves the glued parts to the labeling position, and the suction mechanism accurately places the label on the surface of the part and applies appropriate pressure to make it firmly adhered. Subsequently, the visual inspection system checks the position and direction of the label, and if there is any deviation, it is also marked as a defective product. If the position and direction of the label are correct, the multi-axis robot 14 moves the part to the marking station, and the automatic marking equipment marks the label. Finally, confirm whether the information is correct by scanning the code. If it is not correct, it is marked as a defective product; if it is correct, the relevant information is recorded and the part is placed on the conveyor line or designated location, ready to enter the next process or packaging. This preferred implementation method realizes the automation of the entire process from label loading, precise positioning, gluing, pasting, quality inspection to marking and code scanning, which not only improves production efficiency, but also ensures the consistency and traceability of product quality.

[0060] The device for sticking a label provided by the present invention is described below. The device for sticking a label described below and the method for sticking a label described above can be referred to each other.

[0061] like Figure 4 , Figure 5 and Figure 6 As shown, the present invention also provides a device for pasting a label, which is used to perform the method for pasting a label in the above embodiment. The device for pasting a label includes: a label feeding system, which is used to take out the label from the material stack 11 and preliminarily position it; a label secondary positioning system, which is used to accurately position the label; an automatic glue dispensing system, which is used to accurately dispense glue on the surface of the part; a label suction and pasting system, which is used to paste the label to the surface of the part; a glue and label pasting inspection system, which is used to detect the pasting quality and direction of the label; a marking and scanning system, which is used to automatically mark the pasted label and scan the code to bind the serial number information.

[0062] Specifically, the label loading system is responsible for taking out the label from the material stack 11 and performing preliminary positioning. This system uses electric servo technology and a suction cup 16 mechanism to effectively and accurately transfer the label from the material stack 11 to the specified position. Next, the secondary positioning system of the label further confirms the direction and position of the label through visual inspection technology, and uses a rotary adjustment mechanism to correct it when necessary to ensure the accuracy of the label in subsequent steps. The automatic dispensing system can apply an appropriate amount of glue on the surface of the part according to a preset trajectory. After the dispensing is completed, there will be a quality inspection step to ensure that the amount and distribution of glue meet the standards. Subsequently, the label suction and pasting system again uses a multi-axis robot 14 in conjunction with a suction cup 16 to move the accurately positioned label to the surface of the part that has been coated with glue, and apply appropriate pressure to make it firmly attached.

[0063] In order to ensure the quality of the final product, the glue and label pasting inspection system preferably uses a high-resolution camera 17 and an image processing program to carefully check each pasted label to ensure that it is in the correct position and has no quality problems. Finally, the marking and scanning system uses a laser marking machine 18 to add a unique identification to the label, and uses a high-speed scanner to record the information and bind it to the product serial number to achieve full traceability.

[0064] The label pasting device can realize the integrated operation from label supply to final marking, which not only improves production efficiency, but also greatly enhances the quality consistency of the finished product. By integrating advanced sensor technology and intelligent control system, the device can flexibly respond to the needs of different types of labels and is widely applicable to various manufacturing scenarios.

[0065] Furthermore, according to a device for pasting labels of the present invention, the label feeding system includes a material stack 11, a through-beam sensor 12 and an electric servo system. The material stack 11 is used to store neatly arranged labels to ensure that the labels can be taken out in an orderly manner. The through-beam sensor 12 is installed at the bottom of the material stack 11 and can detect whether there is a label at the bottom layer. When the sensor detects that there is no label, the material stack 11 mechanism will automatically rise a distance of the thickness of the label until the label is detected. The electric servo system is responsible for driving the suction mechanism to move precisely above the label, and firmly adsorb the label through the suction cup 16, and then preliminarily position it.

[0066] Preferably, the secondary positioning system of the sign includes a mechanical positioning device 13, a visual detection system and a rotating mechanism. The mechanical positioning device 13 is used to make a preliminary position adjustment to the sign, while the high-precision visual detection system (such as a CCD camera 17) captures the sign image and analyzes whether its direction and position are correct. If the direction of the sign is incorrect, the rotating mechanism will automatically adjust the sign to the correct direction.

[0067] Preferably, the automatic dispensing system includes a multi-axis robot 14, a dispensing head 15 and a visual inspection system. The multi-axis robot 14 is responsible for carrying the parts to be processed to the dispensing station, and the dispensing head 15 applies an appropriate amount of glue on the surface of the parts according to a preset trajectory. After the dispensing is completed, the visual inspection system checks whether the glue amount and glue distribution meet the requirements to ensure the consistency of the dispensing quality.

[0068] Preferably, the label suction and pasting system includes an electric servo system, a suction cup 16 and a pressure control system. The electric servo system controls the suction mechanism to move the label from the secondary positioning station to the surface of the part on which the glue has been dispensed, and the suction cup 16 releases the label and applies appropriate pressure to make the label closely contact with the surface of the part. The pressure control system ensures that the applied pressure is moderate, which will not damage the label or the part, and can ensure a good pasting effect.

[0069] Preferably, the glue and label pasting inspection system includes a camera 17 and an image processing program. The system uses a high-resolution camera 17 to capture the image of the pasted label, and the image processing program analyzes whether the position and orientation of the label are correct. If any deviation or quality problem is found, the control system will mark the part as a defective product and send it to the defective product processing area; if everything is normal, it will continue to the next step.

[0070] Preferably, the marking and scanning system includes a multi-axis robot 14, a marking machine 18 and a barcode scanner. The multi-axis robot 14 moves the parts to the marking station, and the marking machine 18 marks the label to generate identification information such as a barcode or a QR code. Subsequently, the high-speed barcode scanner reads the newly generated marking information and associates it with the unique serial number of the product through the production management system.

[0071] Through the collaborative work of the above systems, the label pasting device of the present invention realizes the automation of the entire process from label feeding, precise positioning, glue dispensing, pasting, quality inspection to marking and code scanning, greatly improving production efficiency and product quality.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or modes in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or modes described in this specification and the features of the different embodiments or modes, without contradiction.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for pasting a label, characterized in that: include: The label is automatically loaded and positioned, and the label is taken out from the material stack (11) and initially positioned; Secondary positioning of the sign, positioning the sign to ensure that the direction and position of the sign are correct; Automatic glue dispensing, dispensing glue on the surface of the part to be pasted with the label; Label pasting, pasting the label onto the surface of the part; Quality inspection, testing whether the pasting quality and direction of the said sign meet the requirements; Marking and scanning the code: mark the affixed label and scan the code to bind the serial number information.

2. The method for pasting a label according to claim 1, characterized in that: The steps of automatically feeding and positioning the signboard include: The signboards are stacked in the form of a stack (11); The bottom of the material stack (11) is equipped with a beam sensor (12), and each time a label is taken away, the material stack (11) automatically moves upward by a distance equal to the thickness of the label.

3. The method for pasting a label according to claim 1, characterized in that: The step of secondary positioning of the sign includes: Positioning the sign by means of a mechanical positioning device (13) and a visual detection system; If the sign is not in the correct direction, adjust it to the correct direction by rotating the mechanism.

4. The method for pasting a label according to claim 1, characterized in that: The automatic dispensing step includes: Moving the part to a glue dispensing station by a multi-axis robot (14); Dispensing glue on the parts using a glue dispensing head (15); After dispensing is completed, the dispensing quality is checked by a visual inspection system.

5. The method for pasting a label according to claim 1, characterized in that: The step of pasting the sign includes: The suction mechanism is moved to the sign position by an electric servo system; Sucking the label by means of a suction cup (16) of the suction mechanism; Moving the label to the surface of the part by a multi-axis robot (14); The label is pressed by a pressure control system to stick the label to a designated position.

6. The method for pasting a label according to claim 1, characterized in that: The steps of quality inspection include: Detecting the position and orientation of the sign through a camera (17) and an image processing program; If the position and direction of the label do not meet the requirements, the part will be sent to the defective product processing area.

7. The method for pasting a label according to claim 1, characterized in that: The steps of marking and scanning include: Moving the part to a marking station by a multi-axis robot (14); Automatically mark and scan the code to bind the serial number information; After marking and scanning, the parts are sent to the conveyor line or designated location.

8. The method for pasting a label according to any one of claims 1 to 7, characterized in that: The method is applicable to the pasting of various types of labels, including rivet labels, adhesive-backed labels and glue-pasted labels.

9. A device for pasting a label, characterized in that: A method for performing a label pasting method as claimed in any one of claims 1 to 8; The device comprises: A label loading system, used to take the label out of the material stack (11) and initially position it; Sign secondary positioning system, used to accurately position the sign; Automatic dispensing system for precise dispensing on part surfaces; Label suction and pasting system, used to paste the label to the surface of the part; Glue and label pasting inspection system, used to detect the pasting quality and direction of the label; The marking and scanning system is used to automatically mark the pasted labels and scan the codes to bind the serial number information.

10. The device for sticking a label according to claim 9, characterized in that: The label loading system comprises a material stack (11), a beam sensor (12) and an electric servo system; And / or, the sign secondary positioning system comprises a mechanical positioning device (13), a visual detection system and a rotating mechanism; And / or, the automatic dispensing system comprises a multi-axis robot (14), a dispensing head (15) and a visual inspection system; And / or, the label suction and pasting system comprises an electric servo system, a suction cup (16) and a pressure control system; And / or, the glue and label sticking inspection system comprises a camera (17) and an image processing program; And / or, the marking and code scanning system comprises a multi-axis robot (14), a marking machine (18) and a code scanner.

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