A laser coding production line for easy-tear cap materials

Abstract

This application discloses a laser coding production line for easy-tear cap materials, including an uncoiling line, a cursor locator, a laser, a coding association system, a spraying machine, a coding line, and a finished product rewinding line. A laser and a spraying machine are installed on both the upper and lower sides of the coding line. The cursor locator is installed on one or both sides of the coding line. The first end of the coding line is connected to an external uncoiling line, and the last end is connected to the finished product rewinding line. The coding association system is connected to both the laser and the spraying machine, and the laser and the spraying machine associate laser information and spraying information through the coding association system. Using this invention, easy-tear cap materials are automatically fed into the uncoiling conveyor line, achieving automatic positioning, automatic coding, automatic detection, data association, identification of invalid codes, smoke purification, sterilization and disinfection, and automatic rewinding functions.

Description

Technical Field

[0001] This application relates to the field of laser coding technology, and in particular to a laser coding production line for easy-tear cover materials. Background Technology

[0002] Aluminum foil easy-tear caps, also known as safety caps, are widely used, primarily in the food packaging sector. The metal ring features a quick-opening, inward-rolling design to prevent hand injuries, and the sealing film is easy to open and 50% lighter than ordinary easy-open caps. No dust or debris falls into the can after the cap is torn open, making it a high-end packaging form for the food and pharmaceutical industries in the future.

[0003] The existing easy-tear cap production line transmission system uses a synchronous belt to convey the iron ring material and a servo-driven synchronous positioning system to automatically complete functions such as cap setting, punching, deep drawing, edge rolling, aluminum foil pre-sealing, sealing, embossing, and output. However, during the cap setting process, due to the disordered orientation of the easy-tear cap, it is impossible to accurately position and complete the coding. Furthermore, the coding processes on the upper and lower surfaces of the easy-tear cap material are independent of each other, which can easily lead to situations where the coding on the upper and lower surfaces of the easy-tear cap material cannot be correlated or is inconsistent. Summary of the Invention

[0004] This application provides a laser coding production line for easy-tear cap materials, which automatically feeds the easy-tear cap materials into the unwinding production line and realizes functions such as automatic positioning, automatic coding, automatic detection, data association, identification and marking of invalid codes, smoke purification, sterilization and disinfection, and automatic winding.

[0005] To solve the above-mentioned technical problems, this application provides a laser coding production line for easy-tear cap materials, including a cursor locator, a laser, a code reading association system, a spraying machine, a coding line, and a finished product winding line;

[0006] Lasers and spraying machines are installed on both the upper and lower sides of the coding line. The cursor locator is installed on one or both sides of the coding line. The beginning of the coding line is connected to an external uncoiling production line, and the end of the coding line is connected to the finished product winding line. The code reading association system is connected to the laser and the spraying machine respectively. The laser and the spraying machine associate laser information and spraying information through the code reading association system. The laser information is generated by the code reading association system based on reserved information, and the spraying information is generated by the code reading association system by comparing the difference between the laser coding information and the reserved information.

[0007] The cursor locator is used to locate the laser position of the easy-tear cover material on the coding line; the laser is used to laser mark the easy-tear cover material according to the cursor point positioning information and the laser information; when the easy-tear cover material passes through the visual positioning station on the coding line, the laser marking information of the easy-tear cover material is obtained; the spraying machine is used to modify the laser marking information of the easy-tear cover material according to the spraying information to ensure that the modified laser marking information is consistent with the reserved information.

[0008] In one possible implementation, the laser and the spraying machine associate laser information and spraying information through the code reading association system, specifically including:

[0009] The text or pattern editing system of the code association system associates the laser information of the laser on the upper side of the coding line with the spraying information of the spraying machine, ensuring that the laser coding information on the inner surface and the coding information on the outer surface of the easy-tear cover material are consistent.

[0010] In one possible implementation, the step of laser marking the easy-tear cap material on the marking line based on the cursor point positioning information and laser information specifically includes:

[0011] Laser marking is performed on the inner and outer surfaces of the easy-tear cap material along the marking line to form laser marking information, so that the laser marking information formed on the inner and outer surfaces of the easy-tear cap material is consistent.

[0012] In one possible implementation, the laser marking information includes markings and / or text and / or graphics and / or barcodes and / or QR codes.

[0013] In one possible implementation, the code reading association system is installed on the visual positioning station. The code reading association system reads the laser marking information of the easy-tear cover material through a camera, identifies and marks the code information in the laser marking information that is inconsistent with the reserved information.

[0014] In one possible implementation, after marking based on the consistency between the laser marking information and the reserved information code information, the method further includes:

[0015] Spraying information is generated based on code information that is consistent with or inconsistent with the reserved information, or the information that is consistent with or inconsistent with the reserved information and the corresponding mark are transmitted and recorded to the code reading association system so that they can be retained or removed for later use.

[0016] In one possible implementation, a cleaning system is also included; the cleaning system includes a dust collector and / or a dust removal roller, the cleaning system being used to adsorb the smoke and dust generated during the laser marking process.

[0017] In one possible implementation, a sterilization system is also included; the sterilization system disinfects and sterilizes the easy-tear cap material.

[0018] In one possible implementation, the finished product winding line includes a winding drive wheel and a winding buffer wheel.

[0019] In one possible implementation, the uncoiling production line includes an uncoiling drive wheel and an uncoiling buffer wheel.

[0020] Compared with the prior art, this application has the following beneficial effects:

[0021] The text or pattern editing system of the code association system associates the laser information of the laser on the upper side of the coding line with the spraying information of the spraying machine, ensuring that the laser coding information on the inner surface and the laser coding information on the outer surface of the easy-tear cover material are consistent, thereby achieving a unique one-to-one correspondence between the inner and outer codes.

[0022] For invalid codes, garbled codes, or blank codes printed at the front end (laser marking process), identify and mark the codes in the laser marking information that are inconsistent with the reserved information, so that the back end (easy-tear cap making and rejection process) can identify and reject them, or directly modify the spraying information so that the spraying machine can modify and improve the laser marking information on the easy-tear cap material. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a laser coding production line for easy-tear cap materials, as shown in an embodiment of this application. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] Please refer to Figure 1 , Figure 1 A laser coding production line for easy-tear cap material provided in this application embodiment includes a cursor locator 1, a laser 2, a code reading association system 3, a spraying machine 4, a coding line 7, and a finished product winding line 8.

[0026] Lasers 2 and sprayers 4 are installed on both the upper and lower sides of the coding line 7. The cursor locator 1 is installed on one or both sides of the coding line 7. The first end of the coding line 7 is connected to an external uncoiling production line, and the second end of the coding line 7 is connected to the finished product winding line 8. The code reading association system 3 is connected to the laser 2 and the sprayer 4 respectively. The laser 2 and the sprayer 4 are associated with laser information and spraying information through the code reading association system 3. The laser information is generated by the code reading association system 3 based on reserved information, and the spraying information is generated by the code reading association system 3 by comparing the difference between the laser coding information and the reserved information.

[0027] The cursor locator 1 is used to locate the laser position of the easy-tear cover material on the coding line 7; the laser 2 is used to laser mark the easy-tear cover material according to the cursor point positioning information and the laser information; when the easy-tear cover material passes through the visual positioning station on the coding line 7, the laser marking information of the easy-tear cover material is obtained; the spraying machine 4 is used to modify the laser marking information of the easy-tear cover material according to the spraying information, so as to ensure that the modified laser marking information is consistent with the reserved information.

[0028] It should be noted that the easy-tear cap materials mentioned in this plan include, but are not limited to, aluminum foil, composite film, and tinplate.

[0029] The entire coding process is as follows: automatic winding (taking aluminum foil as an example) → unwinding → cursor positioning and recognition → laser coding → code reading and association → invalid code identification and marking → smoke purification and dust removal → secondary dust removal → sterilization → automatic unloading of finished rolls → connection to cap production line.

[0030] Automatic roll-up: A robotic arm automates the roll-up of the easy-tear cap material.

[0031] Uncoiling: Utilizing the uncoiling drive wheel and uncoiling buffer wheel on the uncoiling production line, instantaneous uncoiling is achieved, which has a correction function to ensure consistent uncoiling tension of the material.

[0032] Cursor positioning and recognition: The cursor positioner 1 is used to locate the cursor point and calculate the rotation angle of the easy-tear cover material with disordered direction.

[0033] Laser coding: This method can mark Chinese and English text, dates and times, barcodes, serial numbers, etc., and output Chinese and English text, graphics, various barcodes, QR codes, etc. It requires the installation of a fully functional font library. The laser 2 or the spraying machine 4 can achieve association through the text or pattern editing program of the code reading association system 3. Association means that the information of the inner and outer QR codes can be linked to achieve a unique one-to-one correspondence between the inner and outer codes.

[0034] Code Reading Association: Identifying laser codes to determine QR code readability. This involves using a camera to read and recognize QR codes, categorizing them as either readable or unreadable.

[0035] Invalid code identification mark: Identify and mark invalid codes, data errors, or blank codes printed at the front end (laser coding process) to facilitate identification and rejection at the back end (easy-tear cap making and rejection process). Alternatively, the coding information can be modified by spraying with a spraying machine 4.

[0036] Smoke purification: The smoke purifier is used to adsorb the smoke and dust generated during the coding process to achieve the dust removal effect.

[0037] Secondary dust removal: Dust removal can be achieved using electrostatic adsorption, ultrasound, etc. (meeting food contact safety requirements).

[0038] Sterilization: Using ultraviolet light to disinfect and sterilize materials.

[0039] Automatic unloading of finished rolls: The finished roll winding line 8 uses buffer rollers to perform instantaneous winding, which corresponds to the front-end unwinding production line and has functions such as deviation correction and constant tension.

[0040] Cap making production line: After the aluminum foil material is fully coded, it is connected to the cap making line to achieve automated production.

[0041] In this embodiment, the text or pattern editing system of the code association system 3 associates the laser information of the laser 2 on the upper side of the coding line 7 with the spraying information of the spraying machine 4, ensuring that the laser coding information on the inner surface and the laser coding information on the outer surface of the easy-tear cover material are consistent, thereby achieving the uniqueness of the one-to-one correspondence between the inner and outer codes.

[0042] For invalid codes, garbled codes, or blank codes printed at the front end (laser marking process), identify and mark codes that are inconsistent with the reserved information in the laser marking information. This facilitates identification and rejection by the back end (easy-tear cap making and rejection process) or directly modifies the spraying information so that the spraying machine 4 can modify and improve the laser marking information on the easy-tear cap material. By assigning and improving codes on the raw materials in advance, accurate positioning can be achieved, coding efficiency can be improved, and the cap making effect can be unaffected.

[0043] For example, the laser 2 and the spraying machine 4 are associated with laser information and spraying information through the code reading association system 3, specifically including:

[0044] The text or pattern editing system of the code association system 3 associates the laser information of the laser 2 on the upper side of the coding line 7 with the spraying information of the spraying machine 4 on the lower side, ensuring that the laser coding information on the inner surface of the easy-tear cover material is consistent with the coding information on the outer surface.

[0045] This embodiment is not limited to using laser marking; marking can also be done using a spray gun 4 on the easy-tear cap material. The spray gun 4 here can be an inkjet printer. Besides supplementing the functions that laser marking cannot achieve, it can also correct the laser marking information on the easy-tear cap material through spraying, ensuring that the laser marking information matches the pre-reserved information.

[0046] For example, the step of laser marking the easy-tear cap material on the marking line 7 according to the cursor point positioning information and laser information specifically includes:

[0047] Laser marking is performed on the inner and outer surfaces of the easy-tear cover material on the marking line 7 to form laser marking information, so that the laser marking information formed on the inner and outer surfaces of the easy-tear cover material is consistent.

[0048] For example, the laser marking information includes markings and / or text and / or graphics and / or barcodes and / or QR codes.

[0049] The pattern of laser-marked information is not limited to QR codes; it can be numbers, letters, graphics, or one or a combination of these.

[0050] The pattern can be implemented both inside and outside, and be interconnected, or it can be independent; the pattern can be directly visible or it can be an invisible pattern that can only be seen with special lighting or tools, and it has anti-counterfeiting function.

[0051] For example, the code reading association system 3 is installed on the visual positioning station. The code reading association system 3 reads the laser marking information of the easy-tear cover material through a camera, identifies the code information in the laser marking information that is inconsistent with the reserved information, and marks it.

[0052] The purpose of identifying and marking discrepancies between the laser marking information and the reserved information is to determine the differences between them, and then generate spraying information to correct the laser marking information. Marking can be done on consistent information, inconsistent information, or both.

[0053] For example, after marking based on the consistency between the laser marking information and the reserved information code information, the method further includes:

[0054] Spraying information is generated based on code information that is consistent with or inconsistent with the reserved information, or the information that is consistent with or inconsistent with the reserved information and the corresponding mark are transmitted and recorded to the code reading association system so that they can be retained or removed for later use.

[0055] For example, it also includes a cleaning system 5; the cleaning system 5 includes a dust collector and / or a dust removal roller, the cleaning system being used to adsorb the smoke and dust generated during the laser marking process.

[0056] For example, it also includes a sterilization system 6; the sterilization system 6 disinfects and sterilizes the easy-tear cover material.

[0057] Generally, the cleaning system 5 and the sterilization system 6 are installed at the cleaning station of the coding line 7, and use ultraviolet light, ozone and ultrasound to disinfect and sterilize the coded aluminum foil materials.

[0058] For example, the finished product winding line 8 includes a winding drive wheel and a winding buffer wheel.

[0059] For example, the uncoiling production line includes an uncoiling drive wheel and an uncoiling buffer wheel.

[0060] In summary, the laser coding production line for easy-tear cap materials provided by the above embodiments of the invention has the following functions:

[0061] Marking function: It can mark Chinese and English text, time and date, barcodes, serial numbers, etc., and output Chinese and English text, graphics, various barcodes, QR codes, etc., with a complete font library;

[0062] QR code marking function: It can realize the data transmission of QR code system, generate various different QR code data, data upload, anti-duplicate code (single code package), code supplementation, and anti-missed printing functions;

[0063] Data system functions: By accessing the code reading association system 3 through different data systems, it can realize real-time communication via network port and serial port to receive data and assign codes, or directly read MDB database, TXT and Excel files;

[0064] Anti-counterfeiting code function: Customizable regional codes facilitate dealer management and prevent cross-selling.

[0065] Production tracking function: Saves data such as production shifts, times, and contents for easy monitoring and tracking.

[0066] Automatic counting and stacking function: The system marks the completion of the task and automatically counts the finished products, while simultaneously dividing them into stacks and sending them out.

[0067] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this application. It should be understood that the above descriptions are merely specific embodiments of this application and are not intended to limit the scope of protection of this application. In particular, it should be noted that any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application for those skilled in the art.

Claims

1. A laser coding production line for easy-tear cap materials, characterized in that, This includes uncoiling production lines, cursor positioners, lasers, barcode reading systems, spray coating machines, coding lines, and finished product winding lines; Lasers and spraying machines are installed on both the upper and lower sides of the coding line. The cursor locator is installed on one or both sides of the coding line. The beginning of the coding line is connected to an external uncoiling production line, and the end of the coding line is connected to the finished product winding line. The code reading association system is connected to the lasers and the spraying machines respectively. Through the text or pattern editing system of the code reading association system, the laser information of the laser on the upper side of the coding line and the spraying information of the spraying machine are associated with the laser information of the laser on the lower side of the coding line and the spraying information of the spraying machine, ensuring that the laser coding information on the inner surface and the laser coding information on the outer surface of the easy-tear cover material are associated or consistent. The laser information is generated by the code reading association system based on reserved information, and the spraying information is generated by the code reading association system by comparing the differences between the laser coding information and the reserved information. The cursor locator is used to locate the laser position of the easy-tear cover material on the coding line; the laser is used to laser-code the easy-tear cover material according to the cursor point positioning information and the laser information; when the easy-tear cover material passes through the visual positioning station on the coding line, the laser coding information of the easy-tear cover material is obtained; the spraying machine is used to modify the laser coding information of the easy-tear cover material according to the spraying information to ensure that the modified laser coding information is consistent with the reserved information. The easy-tear cap material includes aluminum foil and / or composite film and / or tin-plated tinplate and / or chrome-plated tinplate.

2. The laser coding production line for easy-tear cap material as described in claim 1, characterized in that, The step of laser marking the easy-tear cap material on the coding line according to the cursor point positioning information and laser information specifically includes: Laser marking is performed on the inner and outer surfaces of the easy-tear cover material along the marking line to form laser marking information, so that the laser marking information formed on the inner and outer surfaces of the easy-tear cover material is related or consistent.

3. The laser coding production line for easy-tear cap material as described in claim 1, characterized in that, The laser marking information includes text and / or numbers and / or graphics and / or barcodes and / or QR codes.

4. The laser coding production line for easy-tear cap material as described in claim 1, characterized in that, The code reading association system is installed on the vision positioning station. The code reading association system reads the laser marking information of the easy-tear cover material through a camera and marks it according to the consistency between the laser marking information and the reserved information code information.

5. The laser coding production line for easy-tear cap material as described in claim 4, characterized in that, After marking based on the consistency between the laser marking information and the reserved information code information, the method further includes: Spraying information is generated based on code information that is consistent with or inconsistent with the reserved information, or the information that is consistent with or inconsistent with the reserved information and the corresponding mark are transmitted and recorded to the code reading association system so as to facilitate later identification for retention or rejection.

6. The laser coding production line for easy-tear cap material as described in claim 1, characterized in that, It also includes a cleaning system; the cleaning system includes a dust collector and / or a dust removal roller; the cleaning system is used to adsorb the smoke and dust generated during the laser marking process.

7. The laser coding production line for easy-tear cap material as described in claim 1, characterized in that, It also includes a sterilization system; the sterilization system disinfects and sterilizes the easy-tear cap material.

8. The laser coding production line for easy-tear cap material as described in claim 1, characterized in that, The finished product winding line includes a winding drive wheel and a winding buffer wheel.

9. The laser coding production line for easy-tear cap material as described in claim 1, characterized in that, The uncoiling production line includes an uncoiling drive wheel and an uncoiling buffer wheel.

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