Cigarette paper steel seal printing position positioning method and device and storage medium

Abstract

The invention discloses a cigarette paper steel seal printing position positioning method and device and a storage medium in the technical field of high-speed cigarette mechanical control. The method comprises the steps that the real-time host production speed is obtained; inputting the host production speed into a pre-constructed compensation model to obtain a position compensation amount; superposing the position compensation quantity to a preset basic set value of the steel seal adjusting roller to obtain a position set value; and offsetting the position deviation at the real-time host production speed based on the position set value, so that the steel seal is printed at a preset target position. The technical problems that in the prior art, steel seals deviate, operators are forced to frequently conduct manual position intervention adjustment, and the production efficiency and the product quality stability are affected can be solved.

Description

Technical Field

[0001] This invention relates to the field of high-speed cigarette machinery control technology, and in particular to a method, device and storage medium for positioning the printing position of a steel stamp on cigarette paper. Background Technology

[0002] On high-speed cigarette rolling machines driven independently by multiple servo motors, the lack of a traditional mechanical rigid gearbox transmission means that the speed coordination between the independent drive shafts can easily become slightly asynchronous during dynamic processes due to load changes, differences in motor response, and other factors. This directly causes the steel stamp printed on the cigarette paper to shift relative to the preset fixed position of the cigarette. The steel stamp refers to the pattern, text, or marking printed by a steel stamping wheel. This shift is particularly noticeable during speed changes, forcing operators to frequently intervene manually to adjust the position, impacting production efficiency and product quality stability.

[0003] Regarding the brand box, it refers to the printing component designed and manufactured for existing cigarette machines. It is an integrated mechanical transmission kit that rigidly meshes with the main machine's transmission to maintain synchronization with the main machine's production speed. This ensures that the linear speed of the printing roller matches the linear speed of the cigarette paper, thereby guaranteeing the relative stability of the stamped position. It is specifically designed for traditional mechanical transmissions and cannot be directly applied to high-speed cigarette machines with multiple servo motors independently driven. Furthermore, if any deviation exceeds the allowable tolerances, manual intervention by the operator is required for position adjustment. The accuracy of this adjustment depends on the operator's experience, making it time-consuming and labor-intensive.

[0004] The printing wheel, also called the steel printing wheel or printing plate wheel, has raised patterns or text printing plates on its outer circumference. During production, the printing wheel rotates, and the ink supply mechanism applies ink to the printing plate surface. Thus, the printing wheel prints the patterns and text onto the cigarette paper at intervals.

[0005] Therefore, there is an urgent need for a method, device, and storage medium for positioning the printing position of the steel stamp on cigarette paper to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a method, device and storage medium for positioning the printing position of the steel stamp on cigarette paper. This invention can solve the technical problem that the steel stamp offset in the prior art forces operators to frequently make manual interventions to adjust the position, which affects production efficiency and product quality stability.

[0007] To achieve the above objectives, the present invention is implemented using the following technical solution: In a first aspect, the present invention provides a method for positioning the printing position of a steel stamp on cigarette paper, comprising: Obtain real-time host production speed; The host production speed is input into a pre-built compensation model to obtain the position compensation amount; The position compensation amount is added to the preset base setting value of the stamping adjustment roller to obtain the position setting value; The position setting value is used to offset the position deviation under the real-time host production speed, so that the steel stamp is printed at the preset target position.

[0008] Furthermore, the process of constructing the compensation model includes: Obtain discrete calibration point data; Based on the discrete calibration point data, a compensation model is constructed using one of the following methods: linear interpolation, curve fitting, and direct table lookup.

[0009] Furthermore, obtaining discrete calibration point data includes: Control the production equipment to produce at different speeds; When the steel stamp position is detected to be off the preset target position, the position of the steel stamp adjustment roller is further calibrated online in real time by adjusting the position setting value of the steel stamp adjustment roller until the steel stamp position on the cigarette paper reaches the preset target position. Immediately acquire discrete calibration point data, which includes: The instantaneous absolute position offset of the motor shaft of the stamping adjustment roller at the current main machine production speed when it reaches the preset target position. Furthermore, the construction of the compensation model using linear interpolation includes: Based on the discrete calibration point data, the compensation amount corresponding to the production speed is calculated, and the calculation formula includes: , in, For production speed Position compensation amount at time, When the production speed is When the preset target position is reached, the instantaneous absolute position offset is... When the production speed is When the preset target position is reached, the instantaneous absolute position offset is... For production speed and production speed Production speed between; A compensation model is constructed based on the aforementioned position compensation amount and production speed; When the production speed is input, the output is a compensation amount corresponding to the production speed.

[0010] Furthermore, the position compensation amount is superimposed on the preset base setting value of the stamping adjustment roller to obtain the position setting value. The calculation formula includes: , in, Set a value for the position. This is the real-time location compensation amount. The preset base setting value is greater than or equal to 0.

[0011] Furthermore, it also includes: Monitor and obtain the actual deviation of the stamp position; The actual deviation is added to the position setting value to obtain the final position setting value, the expression of which includes: , in, This is the actual deviation. This is the real-time location compensation amount. Set a value for the final position; The final position setting value is used to offset the inherent positional deviation under the real-time host production speed, so that the steel stamp is printed at the preset target position.

[0012] Secondly, the present invention provides a cigarette paper steel stamp printing position positioning device, comprising: The data acquisition module is used to obtain the real-time host production speed; The input module is used to input the host production speed into a pre-built compensation model to obtain the position compensation amount; The overlay module is used to overlay the position compensation amount onto the preset base setting value of the stamping adjustment roller to obtain the position setting value; The adjustment module is used to offset the position deviation under the real-time host production speed based on the position setting value, so that the steel stamp is printed at the preset target position.

[0013] Thirdly, the present invention provides an electronic terminal, including a processor and a memory connected to the processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the steps of the method described in any of the preceding claims are performed.

[0014] Fourthly, the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the methods described above.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: This application obtains a position compensation amount by inputting the real-time machine production speed into a pre-built compensation model. The position compensation amount is then superimposed on the pre-set base value of the stamp adjustment roller to obtain a position setting value. The position setting value is used to offset the inherent position deviation under the real-time machine production speed, so that the stamp is accurately in the pre-set fixed position. This can alleviate stamp slippage, stabilize and improve stamp position accuracy, reduce scrap rate caused by position deviation, improve product quality consistency and brand image, reduce downtime for adjustments and time, speed up specification changeover, and reduce the frequency of manual intervention. Attached Figure Description

[0016] Figure 1 This is a flowchart of a method for positioning the steel stamp printing position on cigarette paper according to Embodiment 1 of the present invention; Figure 2 This is a structural block diagram of the stamp positioning system provided in Embodiment 1 of the present invention. Detailed Implementation

[0017] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments and specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations thereof. In the absence of conflict, the embodiments and technical features in the embodiments can be combined with each other.

[0018] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship. Example 1:

[0019] Figure 1 This is a flowchart illustrating the cigarette paper steel stamp printing position positioning method in Embodiment 1 of the present invention. This flowchart merely shows the logical sequence of the method described in this embodiment. Provided there are no conflicts, different methods may be used in other possible embodiments of the present invention. Figure 1 Complete the steps shown or described in the order indicated.

[0020] The cigarette paper stamp printing position positioning method provided in this embodiment can be applied to a terminal and can be executed by a mechanical equipment fault identification device. This device can be implemented in software and / or hardware and can be integrated into the terminal, such as any smartphone, tablet, or computer device with communication capabilities. The positioning method mentioned in this embodiment can be based on a stamp positioning system (such as...) Figure 2 As shown, the stamp positioning system includes: The system includes a human-machine interface (HMI), an industrial-personal computer (IPC) connected to the HMI, a cutter bracket axis servo controller connected to the IPC, a stamping adjustment roller servo controller connected to the IPC, a first printing roller servo controller connected to the IPC, a second printing roller servo controller connected to the IPC, a first printing roller servo motor connected to the first printing roller servo controller, and a second printing roller servo motor connected to the second printing roller servo controller. Each servo controller is connected to the corresponding servo motor, and an encoder is installed on the motor shaft of each servo motor. The encoder signal is connected to each controller and finally fed back to the IPC. The servo controller for the stamping adjustment roller is used to control the stamping adjustment roller, which precisely adjusts the length of the cigarette paper passing in front of it by its eccentric rotation. The printing roller can accurately imprint on the cigarette paper passing through the point, and the position change of the steel stamp adjustment roller should be able to change the length of the paper tape path before the printing contact point; It should be noted that the steel stamp positioning system mentioned in this embodiment is existing technology and will not be described in detail here.

[0021] See Figure 1 As shown, the method in this embodiment specifically includes the following steps: Step 1: Obtain the real-time host production speed.

[0022] Step 2: Input the main machine production speed into the pre-built compensation model to obtain the position compensation amount; The construction process of the compensation model includes: Obtain discrete calibration point data: Power on the production equipment to make it operational, and turn on the stamp calibration function on the human-machine interface. Following the operation prompts on the HMI, the production equipment is controlled to produce at different production speeds. In this embodiment, the different production speeds can be three different stages of production speed: V0, V2, and V1. V0 can be the starting speed or the initial low speed point, such as 10-20% of the rated production speed; V2 can be the rated production speed; V1 can be the acceleration process speed point, which is a lower speed point between V0 and V2, representing the production speed of the acceleration transition stage.

[0023] The production equipment operates stably at one of the preset production speeds V0, V2, and V1. The steel stamp positioning system only ensures that the speed of the printing wheel and the cutting knife bracket shaft are the same, but there is no position compensation. At this time, due to the difference in the dynamic characteristics of the servo system, the steel stamp position deviates from the preset target position.

[0024] When a deviation of the stamped position from the preset target position is detected, the position of the stamped adjustment roller is further calibrated by adjusting the position setting value of the stamped adjustment roller until the stamped position on the cigarette paper reaches the preset target position; and the stamped position printed on the cigarette is also precisely aligned. At this point, the inherent deviation caused by the asynchronous speed at that speed point is "corrected".

[0025] Regarding the aforementioned calibration of the position of the stamping adjustment roller, a brief explanation is provided below: Under normal operating conditions, the set speed of the printing wheel servo motor and the speed of the main drive virtual shaft are theoretically synchronized. However, due to slight speed or phase jitter / lag of the printing wheel relative to the main drive virtual shaft, position compensation is required between the printing wheel and the stamping adjustment roller to adjust the stamping. The stamping adjustment roller is an eccentric wheel, and its movement only changes the position of the preceding stamp. If only the position of the following stamp is adjusted, i.e., the relative phase offset between the printing wheel motor and the cutter bracket shaft motor is controlled for stamping adjustment, the preceding stamp will also change synchronously. Therefore, this application uses reverse compensation via the stamping adjustment roller to keep the position of the preceding stamp unchanged, achieving this solely through the movement of the stamping adjustment roller motor. In the positioning process mentioned in this embodiment, if the adjustment of the preceding and following positions is too large (the upper limit in this embodiment is 5mm), it indicates that the compensation amount is too large, and the adjustment value can be reset to zero for recalibration.

[0026] When the stamped position is detected to have reached the preset target position, confirm the speed point calibration is complete on the HMI.

[0027] Immediately acquire discrete calibration point data after calibration is completed, wherein the discrete calibration point data includes: The current main machine production speed and the instantaneous absolute position offset corresponding to the motor shaft of the steel stamp adjustment roller reaching the preset target position at the current main machine production speed.

[0028] Regarding the host machine's production speed, it has a proportional relationship with the instantaneous absolute encoder value of the cutter bracket shaft encoder and the instantaneous absolute encoder value of the motor shaft of the first or second printing wheel servo motor. Further explanation is needed: since the production equipment used in this embodiment is the ZJ119 model, and the ZJ119 model does not have a physical main motor, each rotating wheel or drum is directly driven by its respective servo motor. This application establishes a main drive virtual axis based on the operating speed of the cutter bracket shaft, and the host machine speed is given by the main drive virtual axis. Each servo motor establishes a speed proportional relationship with the main drive virtual axis based on the speed of the directly driven wheel or drum. How to obtain the host machine's production speed based on this specific speed proportional relationship is prior art and will not be elaborated here.

[0029] Repeat the above steps to complete the calibration and data acquisition for different production speeds. All calibration point data is securely stored in the controller's non-volatile memory.

[0030] Based on the discrete calibration point data, a compensation model is constructed using one of the following methods: linear interpolation, curve fitting, and direct table lookup.

[0031] To provide further explanation, constructing the compensation model using linear interpolation includes: Based on the discrete calibration point data, the compensation amount corresponding to the production speed is calculated, and the calculation formula includes: , in, For production speed Position compensation amount at time, When the production speed is When the preset target position is reached, the instantaneous absolute position offset is... When the production speed is When the preset target position is reached, the instantaneous absolute position offset is... For production speed and production speed Production speed between; A compensation model is constructed based on the aforementioned position compensation amount and production speed; When the production speed is input, the output is a compensation amount corresponding to the production speed.

[0032] Furthermore, constructing a compensation model using curve fitting and direct table lookup methods is a conventional existing technology in this field, and will not be elaborated upon here. After constructing the compensation model, its specific function is mainly manifested in outputting a compensation amount corresponding to the input production speed.

[0033] Step 3: Add the position compensation amount to the preset base setting value of the stamping adjustment roller to obtain the position setting value. The calculation formula includes: , in, Set a value for the position. This is the real-time location compensation amount. This is a preset basic setting value, which is greater than or equal to 0. When the preset basic setting value is 0, the queried / calculated value can be directly used. As .

[0034] Step 4: Based on the position setting value, offset the position deviation under the real-time host production speed, so that the steel stamp is printed at the preset target position.

[0035] In summary, the basic concept of this application is to calculate and apply the position compensation amount of the stamping adjustment roller in real time based on the real-time host speed using the compensation model established in step two, so as to offset the position deviation at that speed in real time, ensure that the stamping is accurately printed at the preset target position, and eliminate the deviation at startup, compensate for the lag in the acceleration phase, and suppress the drift at high speed.

[0036] In addition, it may include: It can be integrated with high-precision online visual inspection equipment to continuously monitor and obtain the actual deviation of the stamp position; The actual deviation is added to the position setting value to obtain the final position setting value, the expression of which includes: , in, This is the actual deviation. This is the real-time location compensation amount. Set a value for the final position; The final position setting is used to offset the inherent positional deviations at the real-time host production speed, ensuring that the stamp is printed at the preset target position. This further enhances robustness in response to model errors or external disturbances. Example 2:

[0037] Embodiment 2 of the present invention provides a cigarette paper steel stamp printing position positioning device, comprising: The data acquisition module is used to obtain the real-time host production speed; The input module is used to input the host production speed into a pre-built compensation model to obtain the position compensation amount; The overlay module is used to overlay the position compensation amount onto the preset base setting value of the stamping adjustment roller to obtain the position setting value; The adjustment module is used to offset the position deviation under the real-time host production speed based on the position setting value, so that the steel stamp is printed at the preset target position.

[0038] The cigarette paper steel stamp printing position positioning method provided in Embodiment 2 of the present invention can execute the cigarette paper steel stamp printing position positioning method provided in Embodiment 1 of the present invention, and has the corresponding functional modules and beneficial effects of the execution method. Example 3:

[0039] Embodiment 3 of the present invention also provides an electronic terminal, including a processor and a memory connected to the processor, wherein a computer program is stored in the memory, and the processor is used to perform operations according to the instructions to execute the steps of the method described in Embodiment 1.

[0040] The electronic terminal provided in Embodiment 3 of the present invention can execute the cigarette paper steel stamp printing position positioning method provided in Embodiment 1 of the present invention, and has the corresponding functional modules and beneficial effects of the execution method. Example 4:

[0041] Embodiment 4 of the present invention also provides a computer-readable storage medium storing a computer program thereon. When the computer program is executed by a processor, it implements the steps of the method described in Embodiment 1, and has the corresponding functional modules and beneficial effects of the method.

[0042] Those skilled in the art will understand that embodiments of this application can be provided as methods, apparatus, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0043] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (devices), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0044] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0045] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0046] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for positioning the printing position of a steel stamp on cigarette paper, characterized in that, include: Obtain real-time host production speed; The host production speed is input into a pre-built compensation model to obtain the position compensation amount; The position compensation amount is added to the preset base setting value of the stamping adjustment roller to obtain the position setting value; The position setting value is used to offset the position deviation under the real-time host production speed, so that the steel stamp is printed at the preset target position.

2. The method for positioning the printing position of the cigarette paper steel stamp according to claim 1, characterized in that, The process of constructing the compensation model includes: Obtain discrete calibration point data; Based on the discrete calibration point data, a compensation model is constructed using one of the following methods: linear interpolation, curve fitting, and direct table lookup.

3. The method for positioning the printing position of the steel stamp on cigarette paper according to claim 2, characterized in that, Obtaining discrete calibration point data includes: Control the production equipment to produce at different speeds; When the steel stamp position is detected to be off from the preset target position, the position of the steel stamp adjustment roller is further calibrated by adjusting the position setting value of the steel stamp adjustment roller until the steel stamp position on the cigarette paper reaches the preset target position, and the calibration is completed. After calibration, discrete calibration point data is obtained, including: The current main machine production speed and the instantaneous absolute position offset corresponding to the motor shaft of the steel stamp adjustment roller reaching the preset target position at the current main machine production speed.

4. The method for positioning the printing position of the steel stamp on cigarette paper according to claim 3, characterized in that, The method of constructing the compensation model using linear interpolation includes: Based on the discrete calibration point data, the compensation amount corresponding to the production speed is calculated, and the calculation formula includes: ， in, For production speed Position compensation amount at time, When the production speed is When the preset target position is reached, the instantaneous absolute position offset is... When the production speed is When the preset target position is reached, the instantaneous absolute position offset is... For production speed and production speed Production speed between; A compensation model is constructed based on the aforementioned position compensation amount and production speed; When the production speed is input, the output is a compensation amount corresponding to the production speed.

5. The method for positioning the printing position of the steel stamp on cigarette paper according to claim 1, characterized in that, The position compensation amount is added to the preset base setting value of the stamping adjustment roller to obtain the position setting value. The calculation formula includes: ， in, Set a value for the position. This is the real-time location compensation amount. The preset base setting value is greater than or equal to 0.

6. The method for positioning the printing position of the steel stamp on cigarette paper according to any one of claims 1-5, characterized in that, Also includes: Monitor and obtain the actual deviation of the stamp position; The actual deviation is added to the position setting value to obtain the final position setting value, the expression of which includes: ， in, This is the actual deviation. This is the real-time location compensation amount. Set a value for the final position; The final position setting value is used to offset the inherent positional deviation under the real-time host production speed, so that the steel stamp is printed at the preset target position.

7. A device for positioning the printing position of a steel stamp on cigarette paper, characterized in that, include: The data acquisition module is used to obtain the real-time host production speed; The input module is used to input the host production speed into a pre-built compensation model to obtain the position compensation amount; The overlay module is used to overlay the position compensation amount onto the preset base setting value of the stamping adjustment roller to obtain the position setting value; The adjustment module is used to offset the position deviation under the real-time host production speed based on the position setting value, so that the steel stamp is printed at the preset target position.

8. An electronic terminal, characterized in that, It includes a processor and a memory connected to the processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, it performs the steps of the method as described in any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program performs the steps of the method according to any one of claims 1 to 6.

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