Cutting control method and device, cutting system and computer storage medium

Abstract

The application provides a cutting control method, comprising the following steps: S100, adjusting a first cutter group and a second cutter group to be electronically cam synchronized with a traction roller; S200, calculating an initial phase deviation value between the first cutter group and the second cutter group, and adjusting a phase when the second cutter group starts according to the initial phase deviation value; S300, reading a color mark in real time; S400, for a current color mark read, calculating deviation values required for adjusting the first cutter group and the second cutter group when the current color mark reaches the first cutter group and the second cutter group respectively, and saving the deviation values; S500, when the current color mark reaches the first cutter group and the second cutter group, adjusting the first cutter group and the second cutter group respectively according to the saved deviation values. Based on the method, the deviation values are adjusted in real time, so that the color mark is cut with high precision and high speed. The application also provides a cutting control device, a cutting mechanism, a system and a computer storage medium.

Description

Technical Field

[0001] This invention relates to the field of digital printing and cutting, and more particularly to cutting control methods, devices, cutting systems, and computer storage media. Background Technology

[0002] Digital printing is characterized by its ability to print on demand without the need for plate making, offering high flexibility, efficiency, and color stability. It also enables variable data printing and anti-counterfeiting technology printing. Its advantage lies in its ability to achieve personalized, unique printing for each sheet, ushering in a new era for production.

[0003] Digital rotary cutting and folding machines are post-press equipment, primarily used in flyers and brochures, and also in perfect-bound books and bookplate production. A digital rotary cutting and folding machine includes an unwinding mechanism, a folding mechanism, and a cutting mechanism. Post-press paper is unwound by the unwinding mechanism, folded along predetermined fold lines by the folding unit, and then cut to the set length by the cutting head. Finally, the paper is sorted and bound into books and periodicals. Summary of the Invention

[0004] In view of the above, the present invention proposes a cutting mechanism and cutting control method, device and cutting system, and computer storage medium to achieve high-performance cutting work.

[0005] According to a first aspect of the present invention, a cutting control method is provided, comprising:

[0006] Adjust the first and second cutter groups to be electronically synchronized with the traction rollers using cams;

[0007] The initial phase deviation value between the first cutter group and the second cutter group is calculated, and the phase of the second cutter group at startup is adjusted according to the initial phase deviation value.

[0008] Real-time reading of color marks;

[0009] For the current color mark read, calculate the deviation value that needs to be adjusted when the current color mark reaches the first cutting group and the second cutting group respectively, and save it;

[0010] When the current color mark is read and reaches the first cutter group and the second cutter group, the saved deviation value is used to adjust the first cutter group and the second cutter group respectively.

[0011] In some optional embodiments, the step of calculating and saving the deviation value required to adjust the current color mark when it reaches the first cutting group and the second cutting group, respectively, further includes:

[0012] When the first color mark is read, based on the current actual position of the traction roller, the actual positions of the first cutter group and the second cutter group, the distance from the first cutter group to the color mark sensor, and the distance from the second cutter group to the color mark sensor, the first mark deviation value of the first color mark reaching the first cutter group and the second cutter group respectively is calculated, and the first mark deviation value is saved.

[0013] The deviation value that needs to be adjusted when the next color mark reaches the first cutter group and the second cutter group is calculated based on the actual position of the traction roller when the current color mark is read, the cutting length, and the actual position of the traction roller when the next color mark is read. The value is then saved.

[0014] In some optional embodiments, when the first color mark is read, the step of calculating the first mark deviation value of the first color mark reaching the first cutter group and the second cutter group respectively based on the current actual position of the traction roller, the actual positions of the first cutter group and the second cutter group, the distance (L1) from the first cutter group to the color mark sensor, and the distance (L2) from the second cutter group to the color mark sensor, and saving the first mark deviation value, further includes:

[0015] When the first color mark is read, the current actual position of the traction roller and the actual positions of the first cutter group and the second cutter group are read;

[0016] The estimated position of the traction roller when the first cutter group cuts the color mark on the paper is calculated based on the actual positions of the first cutter group and the second cutter group.

[0017] Based on the actual position of the traction roller, the estimated position of the traction roller, the distance from the first cutter group to the color mark sensor, and the distance from the second cutter group to the color mark sensor, the first mark deviation value of the first color mark reaching the first cutter group and the second cutter group respectively is calculated and saved.

[0018] In some optional embodiments, the step of calculating and saving the deviation value that needs to be adjusted when the next color mark reaches the first cutter group and the second cutter group based on the actual position of the traction roller when reading the current color mark, the cutting length, and the actual position of the traction roller when reading the next color mark of the current color mark further includes:

[0019] For the current color mark read, the reference position of the next color mark is calculated; wherein, the reference position of the next color mark = the actual position of the traction roller obtained when the current color mark is read + the cutting length;

[0020] When the next color mark is read, the deviation value that needs to be adjusted when the next color mark reaches the first cutter group and the second cutter group is calculated based on the reference position and the current actual position of the traction roller, and then saved.

[0021] In some optional embodiments, the step of calculating and saving the deviation value required to adjust when the current color mark reaches the first cutting group and the second cutting group respectively, for the current color mark read, further includes: setting a sliding window for the current color mark read, and determining whether the next signal read is the next color mark based on the sliding window.

[0022] In some optional embodiments, the step of calculating and saving the deviation value required to adjust when the current color mark reaches the first cutting group and the second cutting group respectively, for the read current color mark, further includes: establishing a first circular queue and a second circular queue, wherein the first circular queue is used to save the deviation value of the first cutting group and the second circular queue is used to save the deviation value of the second cutting group.

[0023] According to a second aspect of the present invention, a cutting control device is provided, comprising:

[0024] The synchronization module is used to adjust the first and second cutter groups to move synchronously with the traction roller via electronic cams.

[0025] An initial phase adjustment module is used to calculate the initial phase deviation value between the first cutter group and the second cutter group, and adjust the phase of the second cutter group when it starts up based on the initial phase deviation value.

[0026] A color mark reading module, which is used to read color marks in real time;

[0027] The deviation value acquisition and storage module calculates and saves the deviation value required to adjust when the current color mark reaches the first cutting group and the second cutting group respectively.

[0028] The deviation value adjustment module adjusts the first cutter group and the second cutter group respectively using the saved deviation value when the current color mark reaches the first cutter group and the second cutter group.

[0029] In some optional embodiments, the deviation value acquisition and storage module further includes a color mark detection module, which is used to obtain the reference position of the current color mark, set a sliding window, and determine whether the next signal read is the next color mark based on the sliding window.

[0030] According to a third aspect of the present invention, a cutting system is provided, including a controller and a cutting mechanism. The cutting mechanism includes at least a pair of traction rollers, a first cutter group, and a second cutter group. The traction rollers are configured to pull paper along a first direction. The first cutter group and the second cutter group are sequentially arranged in the direction in which the traction rollers extend towards the first direction. Blades are respectively provided on the first cutter group and the second cutter group. The blades of the first cutter group and the blades of the second cutter group are staggered along a second direction perpendicular to the first direction. A color mark sensor is also provided between the first cutter group and the traction rollers. The traction rollers, the first cutter group, the second cutter group, and the color mark sensor are respectively connected to the controller and execute the cutting control method according to the above embodiments under the control of the controller.

[0031] According to a fourth aspect of the present invention, a computer storage medium is also provided, the computer storage medium storing computer instructions for causing a computer to execute the cutting control method according to the above embodiments.

[0032] According to the cutting control method of the present invention, firstly, the two cutting blade groups and the traction roller are synchronized electronically using cams to ensure synchronization between the cutting blade groups and the traction roller. Then, the initial phase deviation value between the first and second cutting blade groups is calculated, and initial phase adjustment is performed to ensure that the two cutting blade groups cut the same line of the paper. Subsequently, the color mark signal is acquired in real time, and the deviation value of the latest acquired color mark is calculated. Based on this deviation value, the first and second cutting blade groups are adjusted respectively when the latest color mark arrives at the first and second cutting blade groups. This process continuously calculates the deviation value and adjusts the position based on the newly read color mark, thereby ensuring the cutting accuracy. In addition, the present invention sets a sliding window to determine whether the signal read by the color mark sensor is the next color mark, eliminating the interference of various interfering text patterns on the paper on the color mark sensor reading, making the cutting adjustment more accurate. The cutting method based on the embodiments of the present invention can achieve a production speed of 220m / min and a cutting accuracy of + / -0.2mm. According to the embodiments of the present invention, a cutting control device, a cutting system, and a computer storage medium are also provided. Attached Figure Description

[0033] The accompanying drawings are intended only to illustrate and explain this disclosure and do not limit the scope of this disclosure.

[0034] Figure 1 A schematic diagram of the structure of a cutting mechanism according to an embodiment of the present disclosure is shown;

[0035] Figure 2A schematic diagram illustrating the steps of a cutting control method according to an embodiment of the present disclosure is shown.

[0036] Figure 3 A schematic diagram of a sub-step of step S400 of a cutting control method according to an embodiment of the present disclosure is shown;

[0037] Figure 4 A schematic diagram of a sub-step of step S401 of the cutting control method according to another embodiment of the present disclosure is shown;

[0038] Figure 5 A schematic diagram of a sub-step of step S402 of the cutting control method according to another embodiment of the present disclosure is shown;

[0039] Figure 6 A schematic diagram of a cutting control device according to an embodiment of the present disclosure is shown.

[0040] X First direction 1 First cutter group 2 Second cutter group 3 Traction roller 4 Color mark sensor

[0041] 10 Cutting control device; 100 Synchronization module; 200 Initial phase adjustment module; 300 Color mark reading module.

[0042] 400 Deviation Value Acquisition and Storage Module

[0043] Distance from L1 first cutter group to color mark sensor

[0044] L2 Distance from the second cutter group to the color mark sensor

[0045] S100 controls the first and second cutter groups to move synchronously with the traction roller via electronic cams;

[0046] S200: Calculate the initial phase deviation value between the first cutter group and the second cutter group, and adjust the phase of the second cutter group when it starts up based on the initial phase deviation value;

[0047] S300, real-time color mark reading;

[0048] S400. For the current color mark read, calculate the deviation value that needs to be adjusted when the current color mark reaches the first cutting group and the second cutting group respectively, and save it.

[0049] S500: When the current color mark reaches the first cutter group and the second cutter group, the first cutter group and the second cutter group are adjusted respectively using the saved deviation value;

[0050] S401. When the first color mark is read, based on the current actual position of the traction roller, the actual positions of the first cutter group and the second cutter group, the distance (L1) from the first cutter group to the color mark sensor, and the distance (L2) from the second cutter group to the color mark sensor, the first mark deviation value of the first color mark reaching the first cutter group and the second cutter group respectively is calculated, and the first mark deviation value is saved.

[0051] S402. Based on the actual position of the traction roller when reading the current color mark, the cutting length, and the actual position of the traction roller when reading the next color mark, calculate the deviation value that needs to be adjusted when the next color mark reaches the first cutting group and the second cutting group, and save it.

[0052] S410. When the first color mark is read, read the current actual position of the traction roller and the actual positions of the first cutter group and the second cutter group;

[0053] S420. Based on the actual positions of the first cutter group and the second cutter group, calculate the estimated position of the traction roller when the first cutter group and the second cutter group cut the color mark on the paper;

[0054] S430. Based on the actual position of the traction roller, the estimated position of the traction roller, and the distance (L1) from the first cutter group to the color mark sensor and the distance (L2) from the second cutter group to the color mark sensor, calculate the first mark deviation value of the first color mark reaching the first cutter group and the second cutter group respectively, and save the first mark deviation value.

[0055] S450. For the current color mark that is read, calculate the reference position of the next color mark; wherein, the reference position of the next color mark = the actual position of the traction roller obtained when the current color mark is read + the cutting length;

[0056] S460. When the next color mark is read, the deviation value that needs to be adjusted when the next color mark reaches the first cutter group and the second cutter group is calculated based on the reference position and the current actual position of the traction roller, and then saved. Detailed Implementation

[0057] To enable those skilled in the art to better understand the technical solutions in the present disclosure, the technical solutions in the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings in the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present disclosure should fall within the scope of protection of the present disclosure.

[0058] Figure 1 The structural schematic diagram of a cutting mechanism according to an embodiment of the present disclosure is shown;

[0059] As Figure 1 shown, the cutting mechanism at least includes a first cutter group 1, a second cutter group 2 and a pair of traction rollers 3. The traction rollers 3 are arranged to pull the paper to move along the first direction X. The first cutter group 1 and the second cutter group 2 are sequentially arranged in the direction in which the traction rollers extend along the first direction X. Blades are respectively arranged on the first cutter group 1 and the second cutter group 2. The blades of the first cutter group 1 and the blades of the second cutter group 2 are arranged staggeredly along a second direction perpendicular to the first direction X; A color mark sensor 4 is also arranged between the first cutter group 1 and the traction rollers 3.

[0060] Specifically, the traction rollers 3 are driven by a motor and include an upper traction roller and a lower traction roller. In one implementation, the lower traction roller does not rotate, and the upper traction roller rotates to pull the paper to be transported along the first direction X; The first cutter group 1 and the second cutter group 2 are sequentially arranged in the direction in which the traction rollers 3 extend along the first direction X. A guide roller can also be selectively arranged between the first cutter group 1 and the traction rollers 3. The first cutter group 1 and the second cutter group 2 each include an upper knife and a lower knife, and the upper knife and the lower knife are each composed of a row of blades (for example, 6 blades are arranged on the upper and lower sides respectively). During actual production, the blades of the first cutter group 1 do not cut off the material, but cooperate with the second cutter group 2 staggeredly to jointly achieve the cutting of a certain part of the paper, and the blades of the second cutter group 2 cut off the material; The upper knife and the lower knife move under the drive of a motor respectively; A transmission belt is arranged between the upper knife and the lower knife, and the belt is driven by an independent motor; The paper is suspended and passes through the upper knife and the lower knife under the clamping of the belt and moves along the first direction X; A color mark sensor 4 is arranged on one side of the traction rollers 3 close to the first cutter group 1. The color mark on the paper can be read through the color mark sensor 4. The distance from the color mark sensor 4 to the first cutter group is L1, and the distance from the color mark sensor 5 to the second cutter group is L2, where L1 < L2; The color marks on the paper of the first cutter group are arranged according to a certain rule, for example, evenly distributed at intervals of a fixed cutting length.

[0061] Figure 2 The step schematic diagram of a cutting control method according to an embodiment of the present disclosure is shown;

[0062] As Figure 2 shown, the cutting control method includes:

[0063] S100 controls the first and second cutter groups to move synchronously with the traction roller via electronic cams;

[0064] After the main unit starts up, before its speed increases (e.g., when the speed is low after startup and the operator is still checking and adjusting the equipment), the movement positions of the first cutter group 1 and the second cutter group 2 are designated as slave axes, and the movement position of the traction roller 3 is designated as the master axis. The first cutter group 1 and the second cutter group 2 are synchronized with the electronic cam of the traction roller 3. Specifically, a coordinate axis is formed, where the horizontal axis represents the circumferential position of the traction roller 3, and the vertical axis represents the position of either the first cutter group 1 or the second cutter group 2. A cam curve is used to represent the positional relationship between the two. The specific method for controlling the synchronization of the electronic cam is a well-known technique to those skilled in the art and will not be elaborated upon here.

[0065] S200: Calculate the initial phase deviation value between the first cutter group 1 and the second cutter group 2, and adjust the phase of the second cutter group 2 when it starts up with the initial phase deviation value;

[0066] Specifically, step S200 further includes:

[0067] The distance L1 from the first cutter group 1 to the color mark sensor 4, the distance L2 from the second cutter group 2 to the color mark sensor 4, and the cutting length are obtained.

[0068] Based on the distance L1 from the first cutter group 1 to the color mark sensor 4, the distance L2 from the second cutter group 2 to the color mark sensor 4, and the cutting length, the initial phase deviation value is calculated using the first formula.

[0069] Specifically, the first formula can be: Initial phase deviation value = (L2-L1) / L*360, where L1 represents the distance from the first cutter group to the color mark sensor, L2 represents the distance from the second cutter group to the color mark sensor, and L represents the cutting length;

[0070] Adjust the phase of the second cutter group at startup based on the initial phase deviation value.

[0071] Specifically, a color mark sensor 4 is provided for reading color marks. It measures the distance L1 from the first cutter group 1 to the color mark sensor 4 and the distance L2 from the second cutter group 2 to the color mark sensor 4. The distance from the first cutter group 1 to the color mark sensor 4 is the distance between the cutting point of the paper cut by the first cutter group and the color mark sensor, and the distance from the second cutter group 2 to the color mark sensor 4 is the distance between the cutting point of the paper cut by the second cutter group and the color mark sensor. The cutting length is the distance between adjacent color marks in the paper transport direction, and this value can be preset in advance.

[0072] Through the above steps, the initial phase deviation value is calculated, and then the second cutter group is adjusted with the initial phase deviation value, so that the second cutter group 2 and the first cutter group 1 can cut the same line on the paper.

[0073] S300, real-time color mark reading;

[0074] In this step, a color mark sensor can be set up to read the signal on the paper and determine whether it is a color mark pattern.

[0075] S400. For the current color mark read, calculate the deviation value that needs to be adjusted when the current color mark reaches the first cutting group and the second cutting group respectively, and save it.

[0076] Due to factors such as paper tension, friction, or deviations in the color mark itself, the distance the paper moves may differ from the estimated distance, resulting in a certain deviation value. In this step, the deviation value of the color mark reaching the first cutter group 1 and the second cutter group 2 is calculated in real time and saved. This value then serves as the basis for the position adjustment of the first cutter group 1 and the second cutter group 2 when the color mark arrives at the first cutter group 1 and the second cutter group 2.

[0077] S500: When the current color mark reaches the first cutter group 1 and the second cutter group 2, the first cutter group 1 and the second cutter group 2 are adjusted respectively using the saved deviation values.

[0078] Since the actual positions of the traction roller, the first cutter group, and the second cutter group are known when the color mark is detected, and the distance from the color mark sensor to the first cutter group and the second cutter group is also known, it is possible to determine whether the color mark has reached the first cutter group or the second cutter group based on the distance. When it is determined that the color mark has reached the first cutter group 1 or the second cutter group 2, the corresponding deviation value that has been saved is taken out and applied to the motors of the first cutter group 1 and the second cutter group 2, so that the first cutter group 1 and the second cutter group 2 can adjust their positions to ensure accurate mark cutting.

[0079] Figure 3 This diagram illustrates a sub-step of step S400 in a cutting control method according to an embodiment of the present disclosure; as shown... Figure 3 As shown, step S400 includes the following steps:

[0080] S401. When the first color mark is read, based on the current actual position of the traction roller, the actual positions of the first and second cutter groups, the distance (L1) from the first cutter group to the color mark sensor, and the distance (L2) from the second cutter group to the color mark sensor, the first mark deviation value of the first color mark reaching the first and second cutter groups respectively is calculated and the first mark deviation value is saved.

[0081] Since there is a distance between detecting the first color mark and the first color mark reaching the first cutting group, the way to calculate the deviation value is different from the way to calculate the deviation value of each color mark after the first mark.

[0082] S402. Based on the actual position of the traction roller when reaching the current color mark, the cutting length, and the actual position of the traction roller when reading the next color mark, calculate the deviation value that needs to be adjusted when the next color mark reaches the first and second cutting groups, and save it.

[0083] For each color mark after the first color mark, the same calculation method is used to obtain the deviation value.

[0084] Figure 4 A schematic diagram of a sub-step of step S401 of a cutting control method according to an embodiment of the present disclosure is shown, as follows: Figure 4 As shown, step S401 includes:

[0085] S410. When the first color mark is read, read the current actual position of the traction roller and the actual positions of the first and second cutter groups.

[0086] The actual positions of the first cutter group 1 and the second cutter group 2 here represent the actual values ​​of the rotation angles of the motor shafts of the first cutter group 1 and the second cutter group 2 at this time, which can be obtained in real time, for example, by an encoder installed on the motor.

[0087] S420. Based on the actual positions of the first cutter group 1 and the second cutter group 2, calculate the estimated position of the traction roller when the first cutter group and the second cutter group cut the color mark on the paper.

[0088] Since the first cutter group 1 and the second cutter group 2 have been synchronized with the traction roller 3 by electronic cam, the estimated position of the traction roller when the first cutter group cuts the color mark on the paper can be calculated based on the actual position of the first cutter group, and the estimated position of the traction roller when the second cutter group cuts the color mark on the paper can be calculated based on the actual position of the second cutter group.

[0089] S430. Based on the actual position of the traction roller, the estimated position of the traction roller, and the distance L1 from the first cutter group to the color mark sensor and the distance L2 from the second cutter group to the color mark sensor, the first mark deviation value of the first color mark reaching the first cutter group and the second cutter group respectively is calculated by the second formula, and the first mark deviation value is saved.

[0090] Specifically, this can be calculated using the second formula; the second formula includes: the first mark deviation value of the first cutter group = (L1-(n1-m)) / L, the first mark deviation value of the second cutter group = (L2-(n2-m)) / L, where n1 represents the estimated position of the traction roller when the first cutter group cuts the color mark on the paper, n2 represents the estimated position of the traction roller when the second cutter group cuts the paper surface, m represents the actual position of the traction roller when the first color mark is read, and L represents the cutting length; the integer part calculated in this second formula is the number of sheets that the cutter needs to wait for to cut the color mark; the decimal part is converted into an angle, which is the phase that the cutter needs to adjust when the first color mark reaches the first cutter group and the second cutter group.

[0091] The above steps enable precise calculation and adjustment of the first color stop phase. The adjustment of the first color stop phase is crucial, as it serves as the benchmark for subsequent non-first color stop deviation adjustments, ensuring the accuracy of the entire cutting process.

[0092] Figure 5 A schematic diagram of the sub-steps of step S402 of the cutting control method according to an embodiment of the present disclosure is shown below, as follows: Figure 5 As shown, step S402 includes:

[0093] S450. For the current color mark that is read, calculate the reference position of the next color mark; where the reference position of the next color mark = the actual position of the traction roller obtained when the current color mark is read + the cutting length.

[0094] In theory, the interval between adjacent color marks on the paper along the direction of paper movement is the cutting length. Therefore, when the current color mark is read, that is, when the next color mark arrives, the actual position of the traction roller should be the actual position of the traction roller when the current color mark is read plus the cutting length, i.e., the reference position.

[0095] S460. When the next color mark is read, the deviation value that needs to be adjusted when the next color mark reaches the first cutter group and the second cutter group is calculated based on the reference position and the actual position of the current traction roller, and then saved.

[0096] Specifically, the deviation value = reference position - actual position of the traction roller; since the first and second cutter groups are synchronized after the initial phase deviation value adjustment, here, it is only necessary to calculate the deviation value based on the reference position as the common adjustment phase of the first and second cutter groups.

[0097] In some possible implementations, step S400 further includes: obtaining the reference position of the current color mark, setting a sliding window, and determining whether the next signal to be read is the next color mark based on the sliding window.

[0098] Specifically, since there are many patterns on the paper, the color mark sensor may misread some interfering or useless non-color mark patterns. By setting a window, the noise signals from other patterns on the paper to the color mark sensor can be filtered out. However, since the rotation of the traction shaft is not necessarily an integer multiple of the cutting length, the window must be a sliding window rather than a fixed window to accurately detect the color mark. The sliding window includes two factors: center position and width. The center position of the window is the reference position of the traction roller, and the width of the window is determined according to the specific printed pattern. For example, if the color mark is a small rectangle of 5mm*10mm, filled with black, and the pattern outside the rectangle is white or other patterns with obvious contrast, then the width of the window is set to 10mm, and the sliding window is [reference position - 5mm, reference position + 5mm].

[0099] As can be seen in the above embodiments, by designing a sliding window to detect the correct next color mark, interference from various text patterns on the paper on the color mark sensor readings is eliminated. Then, for each color mark read, the deviation value when the color mark reaches the cutter is calculated, and the phase of the cutter is adjusted based on this deviation value when the color mark reaches the cutter, thereby completing the marking task efficiently and with high precision.

[0100] Furthermore, step S400 may also include:

[0101] Establish a first circular queue and a second circular queue, wherein the first circular queue is used to store the deviation value of the first cutting blade group, and the second circular queue is used to store the deviation value of the second cutting blade group.

[0102] Of course, the above is just one possible implementation method. The storage method can be different, such as array storage or stack storage. Setting different storage methods is a technical means well known to those skilled in the art, and will not be elaborated here.

[0103] According to a second aspect of the present invention, a cutting control device 10 is provided, specifically comprising:

[0104] Synchronization module 100 is used to adjust the first cutter group and the second cutter group to move synchronously with the traction roller via electronic cams.

[0105] The initial phase adjustment module 200 is used to calculate the initial phase deviation value between the first cutter group and the second cutter group, and adjust the phase of the second cutter group when it starts up based on the initial phase deviation value.

[0106] Color mark reading module 300, used for real-time reading of color marks;

[0107] The deviation value acquisition and storage module 400 calculates and saves the deviation value required to adjust when the current color mark reaches the first cutting group and the second cutting group respectively.

[0108] The deviation value adjustment module 500 adjusts the first and second cutting groups respectively using the saved deviation values ​​when the current color mark reaches the first and second cutting groups.

[0109] In some possible implementations, the deviation value acquisition and storage module 400 further includes a color mark detection module, which is used to obtain the reference position of the current color mark, set a sliding window based on the reference position, and determine whether the next signal read is the next color mark based on the sliding window.

[0110] It should be noted that the information interaction and execution process between the modules in the above-mentioned cutting control device 10 are based on the same concept as the aforementioned method embodiment. For details, please refer to the description in the aforementioned method embodiment, and will not be repeated here.

[0111] According to a third aspect of the present invention, a cutting system is also provided, including a controller and a cutting mechanism. The cutting mechanism includes at least a pair of traction rollers, a first cutting blade group, and a second cutting blade group. The traction rollers are configured to pull paper along a first direction. The first cutting blade group and the second cutting blade group are sequentially arranged in the direction in which the traction rollers extend in the first direction. Blades are respectively provided on the first cutting blade group and the second cutting blade group. The blades of the first cutting blade group and the blades of the second cutting blade group are staggered along a second direction perpendicular to the first direction. A color mark sensor is also provided between the first cutting blade group and the traction rollers. The traction rollers, the first cutting blade group, the second cutting blade group, and the color mark sensor are respectively connected to the controller and execute the cutting control method according to the above embodiments under the control of the controller.

[0112] In some implementations, Siemens controllers can be used to perform the functions of the invention. On the one hand, the very high computing power of Siemens motion controllers and their ability to acquire signals from high-speed color mark sensors can be fully utilized. On the other hand, the cutting position can be estimated through the electronic cam function module built into the Siemens motion controller, thereby cleverly achieving precise adjustment of the color mark phase and making the cutting system highly robust.

[0113] According to a fourth aspect of the present invention, a computer storage medium is also provided, wherein the computer storage medium stores computer instructions for causing a computer to execute the cutting control method of the above embodiments.

[0114] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this disclosure is not limited in this respect.

[0115] It should be understood that expressions such as "first," "second," "first," or "second" used in this disclosure may modify various components regardless of their order and / or importance, but these expressions do not limit the corresponding components. The above expressions are configured only for the purpose of distinguishing components from other components.

[0116] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". It should be noted that the modifications of "one" and "a plurality of" mentioned in this disclosure are illustrative and not restrictive, and those skilled in the art should understand that unless explicitly indicated otherwise in the context, they should be understood as "one or more".

[0117] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit them. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure.

Claims

1. A cutting control method, the method comprising: S100, Adjust the first cutter group (1) and the second cutter group (2) to be synchronized with the traction roller (3) by electronic cam; S200. Calculate the initial phase deviation value between the first cutter group (1) and the second cutter group (2), and adjust the phase of the second cutter group (2) when it starts with the initial phase deviation value. S300, real-time color mark reading; S400. For the current color mark read, calculate the deviation value that needs to be adjusted when the current color mark reaches the first cutting knife group (1) and the second cutting knife group (2) respectively, and save it. S500: When the current color mark reaches the first cutter group (1) and the second cutter group (2), the first cutter group (1) and the second cutter group (2) are adjusted respectively using the saved deviation value; The S400 further includes: S401. When the first color mark is read, based on the current actual position of the traction roller (3), the actual positions of the first cutter group (1) and the second cutter group (2), the distance (L1) from the first cutter group (1) to the color mark sensor (4), and the distance (L2) from the second cutter group (2) to the color mark sensor (4), the first mark deviation value of the first color mark reaching the first cutter group (1) and the second cutter group (2) respectively is calculated, and the first mark deviation value is saved. S402. Based on the actual position of the traction roller (3) when reading the current color mark, the cutting length, and the actual position of the traction roller (3) when reading the next color mark of the current color mark, calculate the deviation value that needs to be adjusted when the next color mark reaches the first cutter group (1) and the second cutter group (2), and save it.

2. The cutting control method according to claim 1, wherein step S401 further comprises: S410. When the first color mark is read, read the current actual position of the traction roller (3) and the actual positions of the first cutter group (1) and the second cutter group (2); S420. Based on the actual positions of the first cutter group (1) and the second cutter group (2), calculate the estimated position of the traction roller (3) when the first cutter group (1) and the second cutter group (2) cut the color mark on the paper; S430. Based on the actual position of the traction roller (3), the estimated position of the traction roller (3), the distance (L1) from the first cutter group (1) to the color mark sensor (4), and the distance (L2) from the second cutter group (2) to the color mark sensor (4), the first mark deviation value of the first color mark reaching the first cutter group (1) and the second cutter group (2) is calculated respectively, and the first mark deviation value is saved.

3. The cutting control method according to claim 1 or 2, wherein step S402 further comprises: S450. For the current color mark that is read, calculate the reference position of the next color mark of the current color mark; wherein, the reference position of the next color mark = the actual position of the traction roller (3) obtained when the current color mark is read + the cutting length; S460. When the next color mark is read, the deviation value that needs to be adjusted when the next color mark reaches the first cutter group (1) and the second cutter group (2) is calculated based on the reference position and the actual position of the current traction roller (3), and saved.

4. The cutting control method according to claim 1, wherein step S400 further comprises: For the current color mark read, a sliding window is set, and the next signal read is determined based on the sliding window to determine whether it is the next color mark.

5. The cutting control method according to claim 1, wherein step S400 further comprises: Establish a first circular queue and a second circular queue, wherein the first circular queue is used to store the deviation value of the first cutter group (1), and the second circular queue is used to store the deviation value of the second cutter group (2).

6. A cutting control device (10), characterized in that, include: Synchronization module (100), the synchronization module (100) is used to adjust the first cutter group (1) and the second cutter group (2) to move synchronously with the traction roller (3) via electronic cams; An initial phase adjustment module (200) is used to calculate the initial phase deviation value between the first cutter group (1) and the second cutter group (2), and adjust the phase of the second cutter group (2) when it starts with the initial phase deviation value. A color mark reading module (300) is used to read color marks in real time; The deviation value acquisition and storage module (400) calculates and stores the deviation value required to adjust when the current color mark reaches the first cutter group (1) and the second cutter group (2) respectively, based on the current actual position of the traction roller (3), the actual positions of the first cutter group (1) and the second cutter group (2), the distance (L1) from the first cutter group (1) to the color mark sensor (4), and the distance from the second cutter group (2) to the color mark. The distance (L2) of the sensor (4) is used to calculate the first mark deviation value when the first color mark reaches the first cutter group (1) and the second cutter group (2) respectively, and the first mark deviation value is saved; and the deviation value that needs to be adjusted when the next color mark reaches the first cutter group (1) and the second cutter group (2) is calculated based on the actual position of the traction roller (3) when reading the current color mark, the cutting length, and the actual position of the traction roller (3) when reading the next color mark of the current color mark, and the deviation value is saved. The deviation value adjustment module (500) adjusts the first cutter group (1) and the second cutter group (2) respectively using the saved deviation value when the current color mark is read to reach the first cutter group (1) and the second cutter group (2).

7. The cutting control device according to claim 6, characterized in that, The deviation value acquisition and storage module (400) further includes a color mark detection module, which is used to obtain the reference position of the current color mark, set a sliding window, and determine whether the next signal read is the next color mark based on the sliding window.

8. A cutting system, characterized in that, The device includes a controller and a cutting mechanism. The cutting mechanism includes at least a pair of traction rollers (3), a first cutter group (1), and a second cutter group (2). The traction rollers (3) are configured to pull the paper along a first direction (X). The first cutter group (1) and the second cutter group (2) are sequentially arranged in the direction in which the traction rollers (3) extend toward the first direction (X). The first cutter group (1) and the second cutter group (2) are respectively provided with blades. The blades of the first cutter group (1) and the blades of the second cutter group (2) are staggered along a second direction perpendicular to the first direction (X). A color mark sensor (4) is also provided between the first cutter group (1) and the traction rollers (3). The traction rollers (3), the first cutter group (1), the second cutter group (2), and the color mark sensor (4) are respectively connected to the controller and execute the cutting control method as described in any one of claims 1 to 5 under the control of the controller.

9. A computer storage medium, wherein, The computer storage medium stores computer instructions for causing the computer to execute the cutting control method according to any one of claims 1 to 5.

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