A two-dimensional code spraying system and method for a gypsum board production line

By electrically connecting the printing assembly and the cutting blade PLC control system on the gypsum board production line, and adjusting the position of the printing assembly and the cutting time of the cutting blade, the problem of QR codes not being cut or missed on the gypsum board production line was solved, and accurate scanning and classified stacking of QR codes were achieved.

CN119261405BActive Publication Date: 2025-11-28CHINA NAT BUILDING MATERIALS TECHCAL INNOVATION & RES INST LIMITED +1
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Patent Information

Application Number
CN202411580212.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2025-11-28
Estimated Expiration
2044-11-07

AI Technical Summary

Technical Problem

On a gypsum board production line, how can we ensure that the printed QR code is not split in two at the two-control cutter, and that the QR code equipment accurately scans the QR code on each gypsum board without missing any during the high-speed movement of the gypsum board?

Method used

By electrically connecting the printing assembly to the cutter PLC control system of the second control section of the gypsum board production line, the cutter PLC control system controls the cutter to cut the gypsum board and adjusts the printing assembly to print QR codes on the gypsum board. The position of the printing assembly is adjusted based on the length of a single gypsum board so that the cutting position of the cutter deviates from the QR code printing position. The time interval between the two downward cuts of the cutter is determined by the cutter PLC control system. The printing assembly has multiple printing heads to evenly divide the QR code, ensuring that the QR code is printed at equal intervals on the gypsum board.

Benefits of technology

This technology enables the QR codes to be accurately scanned on each gypsum board during high-speed gypsum board production without being cut by the cutting blade, ensuring information integrity and recognition accuracy, and supporting the subsequent classification and stacking of gypsum boards.

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Abstract

The application discloses a two-dimensional code spraying system and method for a gypsum board production line, wherein a spraying assembly is electrically connected with a cutter PLC control system of a two-control section of the gypsum board production line, the cutter PLC control system controls the cutter to cut off the gypsum board, meanwhile, the spraying assembly is regulated to spray a two-dimensional code on the gypsum board, the position of the spraying assembly is adjusted based on the length of a single gypsum board produced, so that the cutting position of the single gypsum board cut off by the cutter is always deviated from the spraying position of the two-dimensional code; when the cutter of the two-control section of the gypsum board production line cuts the board, the cutter PLC control system of the two-control section of the gypsum board production line sends a signal to the spraying assembly, at this time, the spraying assembly starts to spray the two-dimensional code. Since the distance between the cutter equipment and the spraying equipment is constant, and the length of the spraying equipment is smaller than the length of the single gypsum board produced by cutting, the position of the gypsum board cut off by the cutter and the position of the two-dimensional code will not conflict.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gypsum board production line, and particularly relates to a two-dimensional code spraying system and method for a gypsum board production line. BACKGROUND

[0002] With the gradual improvement of intelligentization and unmanned level of the gypsum board production line, the two-dimensional code technology is introduced into the gypsum board industry, the two-dimensional code is sprayed on the gypsum board and is associated with the corresponding product information, so that the gypsum board information can be known by scanning the two-dimensional code.

[0003] However, in actual application, the time and position of spraying the two-dimensional code are required due to the high-speed continuous production during the production of the gypsum board, how to ensure that the sprayed two-dimensional code is not divided into two parts at the two-control cutter, and how to ensure that the two-dimensional code device accurately scans the two-dimensional code on each gypsum board without missing in the high-speed motion of the gypsum board, become technical problems to be solved by the two-dimensional code spraying system. SUMMARY

[0004] The purpose of the present application is to provide a two-dimensional code spraying system and method for a gypsum board production line, to solve the technical problems of how to ensure that the sprayed two-dimensional code is not divided into two parts at the two-control cutter, and how to ensure that the two-dimensional code device accurately scans the two-dimensional code on each gypsum board without missing in the high-speed motion of the gypsum board in the prior art.

[0005] To solve the above technical problems, the present application specifically provides the following technical solutions:

[0006] A two-dimensional code spraying method for a gypsum board production line, comprising:

[0007] The spraying assembly is electrically connected with a cutter PLC control system of a two-control section of the gypsum board production line, the cutter PLC control system controls the cutter to cut the gypsum board, and simultaneously controls the spraying assembly to spray the two-dimensional code on the gypsum board;

[0008] The position of the spraying assembly is adjusted based on the length of a single gypsum board, so that the cutting position of the single gypsum board cut by the cutter is always offset from the spraying position of the two-dimensional code.

[0009] As a preferred scheme of the present application, the cutter PLC control system determines the time interval of the two-time cutting of the cutter based on the length of the single gypsum board and the running speed of the roller;

[0010] The time interval T(t2-t1) of the two-time cutting of the cutter is equal to the length of the single gypsum board divided by the running speed of the roller;

[0011] Wherein, t2 is the time point of the cutting of the cutter this time, and t1 is the time point of the cutting of the cutter last time.

[0012] As a preferred scheme of the present application, the printing assembly has at least two printing heads, the crosswise length of all the printing heads is less than the length of the single gypsum board, and the position of the printing heads is regulated based on the length of the single gypsum board, so that the two-dimensional code printed by the printing heads can evenly divide the single gypsum board into multiple equal-length sub-blocks.

[0013] As a preferred scheme of the present application, the distance between the cutting knife and the printing head is regulated based on the number of the printing heads of the printing assembly, so that the distance between the cutting knife and the printing head closest to the cutting knife is the same as the distance between two adjacent printing heads.

[0014] As a preferred scheme of the present application, the cutting-knife PLC control system regulates the cutting knife and the printing assembly to simultaneously contact the gypsum board.

[0015] In addition, the present application also provides a printing system of the two-dimensional code printing method applied to the gypsum board production line, which comprises:

[0016] The printing assembly is installed above the gypsum board production line and has at least two printing heads, which are used to print the two-dimensional code of the product information on the gypsum board, and the installation position of the printing assembly is adjusted so that the two-dimensional code formed by the printing assembly can evenly divide the length of the gypsum board.

[0017] The cutting-knife assembly is installed downstream of the printing assembly and is used to cut the gypsum board on which the printing is completed into single gypsum boards with fixed length.

[0018] The cutting-knife PLC control system is electrically connected with the cutting-knife assembly and the printing assembly respectively and is used to regulate the cutting-knife assembly and the printing assembly to work simultaneously.

[0019] As a preferred scheme of the present application, the printing assembly is installed at the tail of the first control section of the gypsum board production line, the cutting knife is installed at the head of the second control section of the gypsum board production line, and the installation position of the printing assembly is adjusted so that the distance between the printing head close to the cutting-knife assembly and the cutting-knife assembly is the same as the distance between two adjacent printing heads of the printing assembly.

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

[0021] The two-dimensional code printing assembly is installed in the first control section of the gypsum board production line, the printing assembly communicates with the cutting-knife PLC control system of the second control section of the gypsum board production line, when the cutting knife of the second control section of the gypsum board production line cuts the board, the cutting-knife PLC control system of the second control section of the gypsum board production line sends a signal to the printing assembly, at this time, the printing assembly starts to print the two-dimensional code. Since the distance between the cutting-knife equipment and the printing equipment is adjustable, and the length of the printing equipment is less than the length of the single gypsum board cut off, therefore, the position of the cutting knife cutting the gypsum board will not conflict with the position of the two-dimensional code. Attached Figure Description

[0022] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0023] Figure 1 This is a flowchart illustrating the laser boundary demarcation method according to an embodiment of the present invention. Detailed Implementation

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

[0025] like Figure 1 As shown, the present invention provides a QR code printing method for a gypsum board production line, comprising the following steps:

[0026] The printing assembly is electrically connected to the cutter PLC control system of the second control section of the gypsum board production line. The cutter PLC control system controls the cutter to cut the gypsum board, and at the same time controls the printing assembly to print QR codes on the gypsum board. That is, the cutter PLC control system controls the cutter and the printing assembly to contact the gypsum board at the same time.

[0027] The position of the printing component is adjusted based on the length of the single gypsum board produced, so that the cutting position of the single gypsum board formed by the cutter is always offset from the printing position of the QR code.

[0028] The QR code is used to integrate information about the gypsum board products produced, such as raw material information, manufacturer information, and usage instructions. Therefore, users can learn about the gypsum board information by scanning the QR code.

[0029] This implementation method adjusts the position of the print head of the printing assembly based on the length of a single gypsum board after cutting, thereby ensuring that the printed QR code is not split at the cutting position of the cutter.

[0030] Furthermore, the PLC control system for the cutter determines the time interval between two downward cuts based on the length of a single gypsum board and the speed of the roller conveyor.

[0031] The time interval between the two downward cuts of the cutter is T(t2-t1) = length of a single gypsum board / speed of the roller conveyor.

[0032] Wherein, t2 is the time point of the cutter this time down cutting, t1 is the time point of the cutter last time down cutting.

[0033] In the embodiment, the cutter PLC control system automatically calculates the time point t2 of the cutter this time down cutting the gypsum board based on the time point t1 of the cutter last time down cutting the gypsum board, so as to realize cutting the long gypsum board to form single gypsum board.

[0034] In the embodiment, in order to ensure that the cutting position of the cutter is always offset from the sprayed two-dimensional code, so that the two-dimensional code is not cut and can be stably scanned and recognized, the specific implementation of adjusting the position of the spraying assembly is:

[0035] The spraying assembly has at least two spraying heads, the transverse length of all spraying heads is less than the length of single gypsum board, and the position of the spraying head is controlled based on the length of single gypsum board, so that the two-dimensional code sprayed by the spraying head can uniformly divide the single gypsum board into multiple equal-length blocks.

[0036] The distance between the spraying head of the spraying assembly and the cutter is controlled based on the number of spraying heads, so that the distance between the cutter and the spraying head closest to the cutter is the same as the distance between two adjacent spraying heads.

[0037] After the specific two-dimensional code is sprayed on the gypsum board on the gypsum board production line, the subsequent identification and stacking of the gypsum board is also realized by scanning and identifying the two-dimensional code by the system, so as to facilitate the subsequent identification operation of the two-dimensional code on the gypsum board production line. In the embodiment, the spraying position of the spraying head is adjusted, so that the spraying position can uniformly divide the single gypsum board into multiple equal-length blocks, so that in the subsequent process of identifying the two-dimensional code, the scanning of the two-dimensional code can be driven in the form of equal-time interruption, so that each two-dimensional code can be scanned, and thus the system can distinguish the product information corresponding to each two-dimensional code. Based on the scanned two-dimensional code information, the gypsum board can be classified and stacked.

[0038] Therefore, in order to realize the identification of the two-dimensional code on the entire gypsum board production line, the two-dimensional code is sprayed equidistantly in the embodiment, that is, the distance between the sprayed two-dimensional code and the two ends of the single gypsum board is the same, and the distance between the adjacent two two-dimensional codes is the same. That is, the two-dimensional code sprayed in the embodiment can divide the single gypsum board into equal-length blocks in the length direction.

[0039] The two-dimensional code spraying method of the gypsum board production line corresponds to a spraying system, which comprises:

[0040] The printing assembly 1 is installed above the gypsum board production line and has at least two printing heads for printing a two-dimensional code of product information on the gypsum board. The installation position of the printing assembly 1 is adjusted so that the two-dimensional code formed by the printing assembly 1 evenly divides the length of the gypsum board.

[0041] The cutter assembly 2 is installed downstream of the printing assembly 1 and is used to cut the printed gypsum board into single gypsum boards with fixed length.

[0042] The cutter PLC control system is electrically connected with the cutter assembly 2 and the printing assembly 1, respectively, and is used to control the cutter assembly 2 and the printing assembly 1 to work simultaneously.

[0043] The printing assembly 1 is installed at the tail of the first control section of the gypsum board production line, and the cutter assembly 2 is installed at the head of the second control section of the gypsum board production line. The installation position of the printing assembly 1 is adjusted so that the distance between the printing head close to the cutter assembly 2 and the cutter assembly 2 is the same as the distance between two adjacent printing heads of the printing assembly 1.

[0044] In this embodiment, the two-dimensional code printing assembly 1 is installed in the first control section of the gypsum board production line and communicates with the cutter PLC control system of the second control section of the gypsum board production line. When the cutter of the second control section of the gypsum board production line cuts the board, the cutter PLC control system of the second control section of the gypsum board production line sends a signal to the printing assembly 1, and the printing assembly 1 starts to print the two-dimensional code. Since the distance between the cutter assembly 2 and the printing assembly 1 is adjustable, and the two-dimensional code is evenly printed on the single gypsum board cut by the cutter, the position of the cutter cutting the gypsum board does not conflict with the position of the two-dimensional code.

[0045] The above examples are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements should also be considered to fall within the protection scope of the present application.

Claims

1. A method of printing a two-dimensional code on a gypsum board production line, characterized by, Comprising: The jet printing assembly is electrically connected with the cutter PLC control system of the two-control section of the gypsum board production line, the cutter PLC control system controls the cutter to cut off the gypsum board, and simultaneously regulates and controls the jet printing assembly to jet print the two-dimensional code on the gypsum board; The position of the jet printing assembly is adjusted based on the length of the produced single gypsum board, so that the cutting position of the cutter to cut off the formed single gypsum board is always offset from the jet printing position of the two-dimensional code; The cutter PLC control system determines the time interval of the cutter to cut off twice based on the length of the single gypsum board and the running speed of the roller table; The time interval T (t2-t1) of the cutter to cut off twice = the length of the single gypsum board / the running speed of the roller table; Wherein, t2 is the time point of the cutter to cut off this time, and t1 is the time point of the cutter to cut off last time; The jet printing assembly has at least two jet printing heads, the cross length of all jet printing heads is less than the length of the single gypsum board, and the position of the jet printing head is regulated based on the length of the single gypsum board, so that the two-dimensional code jet printed by the jet printing head can uniformly divide the single gypsum board into multiple equal-length blocks; The distance between the jet printing head and the cutter is regulated based on the number of jet printing heads of the jet printing assembly, so that the distance between the cutter and the jet printing head closest to the cutter is the same as the distance between two adjacent jet printing heads.

2. The two-dimensional code jet printing method of the gypsum board production line according to claim 1, wherein: The cutter PLC control system regulates the cutter and the jet printing assembly to contact the gypsum board at the same time.

3. A printing system for a two-dimensional code printing method applied to the gypsum board production line according to any one of claims 1 to 2, characterized by Comprising: A jet printing assembly (1) is installed above the gypsum board production line and has at least two jet printing heads, which are used to jet print a two-dimensional code of product information on the gypsum board, and the installation position of the jet printing assembly (1) is adjusted to make the two-dimensional code formed by the jet printing assembly (1) evenly divide the length of the gypsum board; A cutter assembly (2) is installed downstream of the jet printing assembly (1) and is used to cut the jet printed gypsum board into single gypsum boards with fixed length; A cutter PLC control system is electrically connected with the cutter assembly (2) and the jet printing assembly (1) respectively, and is used to regulate and control the cutter assembly (2) and the jet printing assembly (1) to work at the same time.

4. The jet printing system according to claim 3, wherein: The jet printing assembly (1) is installed at the tail of the one-control section of the gypsum board production line, and the cutter assembly (2) is installed at the head of the two-control section of the gypsum board production line, and the installation position of the jet printing assembly (1) is adjusted to make the distance between the jet printing head close to the cutter assembly (2) and the cutter assembly (2) the same as the distance between two adjacent jet printing heads of the jet printing assembly (1).

Citation Information

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