Aluminum-plastic composite decorative plate slotting and cutting device and control method

Abstract

The application relates to the technical field of composite board processing, and discloses an aluminum-plastic composite decorative plate slotting and cutting device and a control method. The device comprises a frame, a supporting assembly, a three-axis actuating mechanism, a cutting head, a vacuum source, a pipeline valve group, a controller, a plate surface detection assembly and a vacuum state detection assembly, the supporting assembly is provided with a plurality of adsorption subareas capable of being selectively communicated with the vacuum source. The controller determines a Z-axis control target according to a supporting reference, plate calibration parameters and a plate surface height in a depth-setting slotting stage; determines a leakage-related subarea and a supporting subarea according to a processing stage and a plate area communication state formed by a completed through cutting seam in a through cutting stage, and carries out isolation, flow limitation, adsorption maintenance, enhancement or migration in combination with a vacuum state. When the supporting condition is insufficient, the final separation processing is delayed, and the separation is completed after the condition is met. The application matches corresponding control parameters in different processing stages, and realizes depth-setting control in the slotting stage and subarea adsorption support in the through cutting stage respectively.

Description

Technical Field

[0001] This invention relates to the field of composite board processing technology, and in particular to a grooving and cutting device and control method for aluminum-plastic composite decorative panels. Background Technology

[0002] Aluminum-plastic composite decorative panels typically require grooving, edge trimming, hole punching, or irregular contour processing. Grooving requires controlling the cutting position of the tool relative to the panel's layer structure to preserve a predetermined material layer or remaining thickness; through-cutting requires the tool to penetrate the panel while maintaining the stable position of the area to be processed and the area to be separated on the supporting component. Because the depth targets and support requirements of these two processes differ, when performing them consecutively on the same panel, it is necessary to differentiate between processing stages.

[0003] When fixed-depth grooving is performed solely based on the machine tool's fixed coordinates, the relationship between the support surface reference, the thickness or interlayer parameters of the sheet metal itself, and the local height of the sheet surface may not be simultaneously incorporated into the Z-axis control target. If there is a height variation of the sheet surface relative to the support assembly, the fixed Z-axis position cannot directly reflect the actual relative position between the tool and the sheet surface. Therefore, it is necessary to obtain the support reference, sheet metal calibration parameters, and sheet surface height information, and to use this information together to determine the control target of the Z-axis actuator. Through-cutting creates through-cut kerfs in the sheet metal. As the through-cut kerf extends, connects, or approaches the sheet metal boundary, the connectivity between sheet metal regions changes, and the through-cut kerf may also form a leaky connection with a certain adsorption zone of the support assembly. If all adsorption zones always maintain the same connectivity, the leaking zone will affect the negative pressure provided by the vacuum source to other zones; if only the zone near the tool is closed, it may weaken the support required for the target machining area. For the target machining area gradually enclosed by the through-cut kerf, in addition to determining whether there are adsorption zones nearby, it is also necessary to determine whether the selected adsorption zone can restrict the translation and rotation of the target machining area. When the current combination of support zones cannot meet the support conditions, directly completing the final through-cut will cause the target processing area to separate prematurely. Therefore, it is necessary to delay the local processing that leads to eventual separation when the support is insufficient, and then perform the local processing only after the support conditions are met.

[0004] Therefore, there is a need for a device and control method that links the Z-axis control of fixed-depth slotting, the identification of leakage zones caused by through-cutting, the selection of support zones for the target processing area, and the final separation conditions. Summary of the Invention

[0005] The purpose of this invention is to provide an aluminum-plastic composite decorative panel grooving and cutting device and its control method to solve the problems in the prior art where, in continuous processing tasks including fixed-depth grooving and through-cutting, it is difficult to dynamically adjust the control basis according to the current processing stage, and there is a lack of continuous state coordination between Z-axis depth control, leakage-related zone control, support zone control and final separation action, resulting in the inability of each adsorption zone of the support component to be isolated, limited or migrated as needed, and insufficient processing stability and separation reliability.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A grooving and cutting device for aluminum-plastic composite decorative panels includes a frame, a support assembly for supporting the aluminum-plastic composite decorative panels, a three-axis actuator mounted on the frame for driving a cutting head to move relative to the support assembly in the X, Y, and Z directions, a vacuum source, a pipeline valve group, and a controller. The three-axis actuator includes a Z-axis actuator, an X-axis actuator, and a Y-axis actuator. The support assembly has multiple adsorption zones, each of which is selectively connected to the vacuum source via the pipeline valve group. The device also includes a panel surface detection assembly and a vacuum state detection assembly. The panel surface detection assembly is used to acquire the panel surface height information of the aluminum-plastic composite decorative panels, and the vacuum state detection assembly is used to acquire the vacuum state parameters of each adsorption zone or a combination of adsorption zones. The controller is connected to the three-axis actuator, the pipeline valve group, the panel detection component, and the vacuum state detection component, and is configured to: in the fixed-depth grooving stage, determine the Z-axis control target of the Z-axis actuator based on the support datum, the calibration parameters of the aluminum-plastic composite decorative panel, and the panel height information; in the through-cutting stage, determine the leakage-related partition that forms a leakage connection with the through-cut and the support partition corresponding to the target processing area based on the completed through-cut and the connectivity status of the panel area, control the pipeline valve group to isolate or limit the leakage-related partition, and maintain or enhance the adsorption of the support partition; when the vacuum state parameters indicate that the support partition does not meet the preset support conditions, prohibit the execution of local through-cutting that ultimately separates the target processing area.

[0007] Preferably, the support reference includes a coordinate relationship established by the reference surface of the support component, the calibration block, and the tool setting point; the calibration parameters of the aluminum-plastic composite decorative panel include at least one of the total thickness of the panel, interlayer parameters, and target remaining thickness; the controller calculates the Z-axis control target based on the support reference, the calibration parameters, and the panel height information.

[0008] Preferably, the plate surface detection component includes a non-contact displacement sensor located in front of the cutting head in the feed direction, and a contact probe having a preset coordinate offset with the cutting head; the controller maps the plate surface height information to the trajectory position to be reached by the cutting head according to the coordinate offset.

[0009] Preferably, the adsorption partition includes a porous adsorption plate and a vacuum chamber group disposed below the porous adsorption plate. The vacuum chamber group includes multiple vacuum chambers that are spaced apart from each other. The adsorption holes of the porous adsorption plate are respectively connected to the corresponding vacuum chambers. The pipeline valve group includes a main pipeline connected to the vacuum source, multiple branch pipelines connected to the main pipeline, and branch valves respectively disposed on each of the branch pipelines. Each branch pipeline is connected to at least one of the vacuum chambers.

[0010] Preferably, the vacuum state detection component includes detection units respectively disposed at the vacuum chamber, the branch pipe, or the inlet of the adsorption zone; the controller determines the leakage associated zone and the support zone based on the intersection, adjacency, or connectivity relationship between the projection of the processing trajectory and the completed through-cut on the support component and the effective range of each adsorption zone, and verifies and adjusts the determination result according to the vacuum state parameters.

[0011] Preferably, the controller divides the board area into a still-connected area, a to-be-separated area, and a separated area based on the completed through-cut. The controller selects an adsorption partition from the adsorption partitions corresponding to the target processing area to restrict the translation and rotation of the target processing area as the support partition. When the support partition does not meet the preset support conditions, the controller controls the cutting head to pause the through-cut or retain a connecting bridge between the target processing area and the surrounding board. After forming a combination of support partitions that meet the preset support conditions, the controller controls the cutting head to cut off the connecting bridge.

[0012] A method for controlling the grooving and cutting of aluminum-plastic composite decorative panels, applied to an aluminum-plastic composite decorative panel grooving and cutting device, includes: S1. Obtain continuous processing tasks for the same aluminum-plastic composite decorative panel, wherein the continuous processing tasks include fixed-depth grooving and through-cutting; S2. During the fixed-depth grooving stage, obtain the support datum, plate calibration parameters and plate height information, and determine the Z-axis control target based on the support datum, the plate calibration parameters and the plate height information; S3. During the through-cutting stage, record the completed through cuts and update the connectivity status of the board area accordingly. S4. Based on the communication state of the through cut and the plate area, determine the leakage-related partition and the corresponding target processing area support partition, isolate or limit the leakage-related partition, and maintain or enhance the adsorption of the support partition. S5. Obtain the vacuum state parameters of the support partition; when the vacuum state parameters indicate that the support partition does not meet the preset support conditions, delay the execution of the partial through-cut that ultimately separates the target processing area; after the preset support conditions are met, execute the partial through-cut.

[0013] Preferably, the leakage-related zone and the support zone are determined based on the intersection, adjacency, or connectivity between the processing trajectory and the projection of the completed through-cut on the support component and the effective range of each adsorption zone; then the determination results are verified and adjusted based on the vacuum state parameters.

[0014] Preferably, based on the completed through-cut, the plate area is divided into a still-connected area, a to-be-separated area, and a separated area; an adsorption partition corresponding to the target processing area is selected as the support partition to restrict the translation and rotation of the target processing area, and the support partition is expanded, contracted, or migrated according to the vacuum state parameters.

[0015] Preferably, when a support partition combination that meets the preset support conditions cannot be formed, the through-cutting is paused or the connecting bridge is retained; the position or number of the connecting bridge is determined according to the contour, center of gravity, remaining connection relationship and vacuum state parameters of the target processing area, and the connecting bridge is cut off after a support partition combination that meets the preset support conditions is formed.

[0016] The present invention has the following beneficial effects: 1. This invention collaboratively determines the Z-axis control target of the Z-axis actuator by using a support datum, aluminum-plastic composite decorative panel calibration parameters, and real-time panel height information acquired by the panel detection component. This overcomes the traditional method of depth control based solely on fixed machine tool coordinates, enabling the Z-axis control target to dynamically reflect the support relationship, the physical parameters of the panel itself, and the local panel height at the processing location. This effectively eliminates the influence of panel height fluctuations on the cutting depth, ensuring the depth control accuracy and interlayer processing quality of constant-depth grooving.

[0017] 2. This invention utilizes porous adsorption plates, separated vacuum chambers, branch pipes, and branch valves to construct adsorption zones that can be controlled independently or in groups. During the processing, a geometric correlation is established based on the completed through-cut, and combined with real-time vacuum state parameters obtained from a vacuum state detection component, a two-way verification mechanism for predicting, confirming, and correcting leakage-related zones is achieved. It can accurately isolate or restrict flow control of leakage-related zones based on the actual physical cut state, effectively blocking the impact of cut leakage on the negative pressure of the main pipeline, reliably maintaining the negative pressure environment of other adsorption zones, and avoiding misjudgments and lags caused by simply relying on theoretical trajectories or instantaneous position determinations.

[0018] 3. Based on the connectivity of the plate area after the through-cut update, this invention selects an adsorption zone that can effectively restrict the translation and rotation of the target processing area as a support zone. The support zone can maintain adsorption, enhance adsorption, expand, shrink, or migrate as the processing progresses, so that the negative pressure support always dynamically adapts to the constraint requirements of the workpiece. At the same time, a pre-support judgment mechanism is introduced to delay the local processing that leads to final separation when the support conditions are not met, until the support conditions are met before the connecting bridge is cut off to complete the separation. This eliminates the risk of the workpiece falling off prematurely, deflecting, or damaging the tool and plate edge before a stable adsorption is formed, and significantly improves the processing safety and yield of continuous through-cutting. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of the device disclosed in this invention; Figure 2 Schematic diagram of the internal structure of the device disclosed in this invention. Figure 1 ; Figure 3 Schematic diagram of the internal structure of the device disclosed in this invention. Figure 2 ; Figure 4 Flowchart of the grooving and cutting control method for aluminum-plastic composite decorative panels disclosed in this invention; Figure 5 The flowchart of the determination and correction of leakage-related partitions and support partitions in the method disclosed in this invention; Figure 6 The flowchart of the target processing area support determination and connecting bridge control method disclosed in this invention.

[0020] in: 1. Supporting component; 2. Adsorption zone; 3. Aluminum-plastic composite decorative panel; 4. Cutting head; 5. Z-axis actuator; 6. X-axis actuator; 7. Y-axis actuator; 8. Vacuum source; 9. Pipeline valve group; 10. Porous adsorption plate; 11. Vacuum chamber group. Detailed Implementation

[0021] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0022] Example 1, such as Figures 1-3 As shown, the frame forms the mounting base of the device, and the support component 1 is set in the processing area formed by the frame. The aluminum-plastic composite decorative panel 3 can be placed flat on the support surface of the support component 1. The three-axis actuator is installed on the frame and spans above the support component 1. The cutting head 4 is connected to the moving end of the three-axis actuator, so that the cutting head 4 can move relative to the support component 1 in the X, Y, and Z directions.

[0023] The X and Y directions are used to guide the cutting head 4 to the target trajectory position within the plate plane, while the Z direction is used to change the height of the cutting head 4 relative to the plate surface and the supporting assembly 1. The Z-axis actuator 5 is the part of the three-axis actuator responsible for Z-axis motion, and its output end is connected to the cutting head 4. The controller sends position or motion commands to the three-axis actuator according to the processing task, and selects the corresponding Z-axis control target and zone control mode according to the current processing stage.

[0024] The vacuum source 8 is connected to multiple adsorption zones 2 within the support assembly 1 via a pipe valve group 9. The controller changes the connection state between each adsorption zone 2 and the vacuum source 8 via the pipe valve group 9, thereby enabling different adsorption zones 2 to be controlled independently or as a combination of zones.

[0025] The support datum is established by the datum plane of support assembly 1, the calibration block, and the tool setting point. The datum plane of support assembly 1 is used to represent the position of the support structure in the device coordinate system; the calibration block provides a known position that can be contacted and detected by the cutting head 4 or the detection piece; the tool setting point is used to establish the relationship between the tool tip and the device coordinates. The controller stores the correspondence formed by the above three as the support side basis for determining the Z-axis control target during the fixed-depth grooving stage.

[0026] The calibration parameters for aluminum-plastic composite decorative panels include at least one of the following: total panel thickness, interlayer parameters, and target remaining thickness. Total panel thickness indicates the dimension between the upper and lower surfaces of the panel; interlayer parameters indicate the relative position or thickness relationship between different material layers within the panel; and target remaining thickness indicates the material thickness to be retained after grooving at a fixed depth. The controller associates and saves the calibration parameters corresponding to the actual task with the support reference.

[0027] Before starting the fixed-depth grooving, the controller can first complete the establishment of the support datum and the input of the plate calibration parameters, and then obtain the plate height information. If the task changes the plate or the datum relationship of support component 1 changes, the datum or calibration record for the corresponding task should be re-established. This process is used to ensure that the data used by the subsequent Z-axis control target corresponds to the same plate and the same support relationship.

[0028] The plate surface detection assembly includes a non-contact displacement sensor and a contact probe. The non-contact displacement sensor is positioned in front of the feed direction of the cutting head 4, so that its detection position arrives at the machining position before the tool. The contact probe has a known coordinate offset from the cutting head 4, and the detection point of the probe can be calculated as the corresponding point on the tool trajectory using this coordinate offset.

[0029] The controller records the coordinate relationships between the non-contact displacement sensor, the contact probe, and the cutting head 4 or blade tip. When the non-contact displacement sensor outputs a detection value, the controller associates the detection value with the X and Y positions and feed direction during detection; when the contact probe acquires a detection value, the controller converts the probe position to the material coordinates based on the coordinate offset. This generates material height information with trajectory position markings.

[0030] Non-contact displacement sensors can be used to continuously or discretely obtain the plate surface height, while contact probes can be used to obtain the plate surface height at one or more calibrated locations. Both are components of the plate surface detection assembly described in the claims. When the controller uses both, it should maintain the correlation between the detected value, the detected position, and the corresponding tool path position, avoiding directly using height values ​​obtained from different positions for the same path point.

[0031] After entering the fixed-depth grooving stage, the controller reads the support datum, the calibration parameters of the current aluminum-plastic composite decorative panel 3, and the panel height information obtained by the panel detection component. The support datum provides the positional relationship of the support side, the panel calibration parameters provide the panel thickness, interlayer position, or target remaining thickness, and the panel height information provides the panel surface state at the location to be processed. The controller combines the above information in the same coordinate relationship to obtain the Z-axis control target of the cutting head 4 at the corresponding trajectory position.

[0032] As the cutting head 4 moves along the fixed-depth grooving trajectory, the non-contact displacement sensor first acquires the plate height information at the position in front. Based on the coordinate relationship between the sensor and the cutting head 4, the controller delays or maps this information to the moment the cutting head 4 reaches the corresponding trajectory position, and then outputs the corresponding control target to the Z-axis actuator 5. The calibration position data acquired by the contact probe can be used to establish or verify the correspondence between the plate height information and the device coordinates.

[0033] The Z-axis control target represents the position that the Z-axis actuator 5 is to reach at the corresponding trajectory position, or the motion control quantity derived from that position. The claims do not limit the controller to using a specific calculation formula; as long as the support reference, the plate calibration parameters, and the plate height information are all included in the process of determining the Z-axis control target, and the target corresponds to the trajectory position that the cutting head 4 is about to reach, it belongs to this control relationship.

[0034] The adsorption section 2 of the supporting component 1 includes a porous adsorption plate 10 and a vacuum chamber assembly 11 disposed below the porous adsorption plate 10. The vacuum chamber assembly 11 includes multiple vacuum chambers that are spaced apart from each other. Each vacuum chamber is connected to the adsorption holes in the corresponding area of ​​the porous adsorption plate 10, so that the negative pressure in the vacuum chamber can act on the lower surface of the aluminum-plastic composite decorative panel 3 through the adsorption holes.

[0035] The separate vacuum chambers create multiple distinct and controllable adsorption zones on the support surface of the support assembly 1. One vacuum chamber can correspond to one adsorption zone 2, or multiple vacuum chambers controlled by the same branch can form a combination of adsorption zones. Regardless of whether single-chamber or combined control is used, the controller maintains the correspondence between adsorption zone 2, vacuum chambers, and the pipeline valve group 9 branches.

[0036] The porous adsorption plate 10 supports the aluminum-plastic composite decorative panel 3 and transmits negative pressure. The distribution range of the adsorption holes corresponds to the effective range of the vacuum chamber below it. The spacing between adjacent vacuum chambers is used to distinguish the pressure changes of one vacuum chamber from those of other vacuum chambers, so that the vacuum state detection component can obtain parameters that characterize the state of the corresponding zone.

[0037] The pipeline valve assembly 9 includes a main pipeline, multiple branch pipelines, and multiple branch valves. The main pipeline is connected to the vacuum source 8, and the multiple branch pipelines are connected to the main pipeline. The other end of each branch pipeline is connected to at least one vacuum chamber. Each branch pipeline is equipped with a corresponding branch valve, enabling the controller to select the connected, flow-limited, or isolated state of the branch.

[0038] The vacuum status detection component includes multiple detection units. These units can be installed in multiple vacuum chambers, corresponding branch pipes, or zone inlets. Detection units installed in vacuum chambers directly acquire the status parameters of that chamber; detection units installed in branch pipes or zone inlets acquire status parameters related to that branch or zone. The controller assigns the detected values ​​to the corresponding adsorption zone 2 or adsorption zone combination using pre-saved mappings.

[0039] Vacuum status parameters are used to reflect the vacuum status of the corresponding adsorption zone 2 under the current valve control state. The controller reads the corresponding parameters before and after the branch valve is activated. This can be used to confirm whether the adsorption zone 2 establishes or maintains a vacuum state according to the control command, and can also be used to determine whether the completed through-cut has caused a leakage connection in a certain zone.

[0040] The controller acquires continuous processing tasks for the same aluminum-plastic composite decorative panel 3. Each continuous processing task includes at least a fixed-depth grooving trajectory and a through-cutting trajectory, and contains task information that allows the controller to distinguish between the two types of processing. The controller identifies the current processing stage according to the task execution progress, ensuring that the Z-axis control rules, kerf recording rules, and adsorption zone control rules used at the same time correspond to the current processing stage.

[0041] During the fixed-depth grooving stage, the controller uses the support datum, sheet calibration parameters, and sheet height information to determine the Z-axis control target. Grooves formed during fixed-depth grooving but not penetrating the sheet are not recorded as completed through-cuts. After entering the through-cutting stage, the controller records the trajectory segments that have penetrated the sheet as completed through-cuts according to the actual completion status.

[0042] The controller can divide the task trajectory into continuous trajectory segments and update the record after the corresponding segment reaches the penetration state. Trajectory segments that have not yet been executed, have not reached the penetration state, or whose execution state cannot be confirmed are not used as completed penetration cuts to update the connectivity state of the board area. This ensures that the connectivity state of the board area corresponds to the already formed physical cuts.

[0043] The controller updates the connectivity status of the board regions based on the position, extension direction, connection relationship, and relationship with the board boundary of the completed through-cut seam within the board plane. The connectivity status of the board regions indicates whether the various board regions are still connected to each other through uncut material, and can identify the relevant board regions as still connected regions, regions to be separated, or separated regions.

[0044] The "still connected area" refers to the area that remains connected to the surrounding sheet material even after the through-cut has been completed; the "to be separated area" refers to the area whose outline has been partially formed by the through-cut, and further processing of the planned local area may separate it from the surrounding sheet material; the "separated area" refers to the area where the planned material connection between it and the surrounding sheet material has been severed. The above classification is updated as more through-cuts are completed.

[0045] The target processing area is the sheet metal area targeted by the current through-cut control. The controller correlates the outline position of the target processing area and the connectivity status of the sheet metal area with the spatial range of adsorption partition 2 to determine which adsorption partitions 2 may form a leaky connection with the through cut and which adsorption partitions 2 can provide support for the target processing area.

[0046] The controller establishes a geometric relationship between the through-cut and adsorption zones 2 based on the processing trajectory and the completed through-cut. This geometric relationship can represent the intersection, adjacency, or connectivity between the projection of the through-cut onto the support component 1 and the effective range of each adsorption zone 2. The controller uses the completed through-cut, rather than the unexecuted trajectory, as the primary geometric basis for the current leakage relationship.

[0047] When the effective range of the through-cut and a certain adsorption zone 2 has been formed, allowing outside air to enter the zone through the cut, the zone is identified or predicted as a leakage-associated zone. The controller can predict the zone that will become a leakage-associated zone based on the trajectory to be executed before the through-cut continues; after the corresponding cut is actually formed, the prediction is confirmed or corrected by combining the vacuum state parameters.

[0048] For identified or predicted leak-related zones, the controller performs isolation or flow restriction via pipeline valve group 9. Isolation can reduce the connection between the zone and vacuum source 8 by closing the corresponding branch valve; flow restriction can limit the impact of the leak-related zone on the overall pipeline vacuum state by adjusting the flow rate of the branch valve. The action taken is determined by the supporting role currently undertaken by the zone and the vacuum state parameters.

[0049] The support zone is the adsorption zone 2 selected by the controller to constrain the target processing area. Based on the location, extent, and connectivity of the target processing area, the controller selects a zone or combination of zones from the adsorption zones 2 corresponding to the target processing area that can restrict its translation and rotation as the support zone. The support zone does not need to coincide with the instantaneous position of the cutting head 4.

[0050] When the current support zone can still provide the required constraints, the controller maintains its adsorption state; when the vacuum state parameters indicate that the support is insufficient but the corresponding zone is still suitable to continue to bear the support, the controller can enhance the adsorption of the zone by changing the branch valve state; when the original support zone has a leakage relationship due to the cut or no longer corresponds to the target processing area, the controller selects another adsorption zone 2 and implements zone migration.

[0051] The partition migration process includes establishing a new combination of support partitions and reducing or eliminating the function of the original support partitions. To maintain support continuity during the migration process, the controller can first establish a vacuum state in the newly selected adsorption partition 2, and confirm that the new support partition has reached the corresponding state based on the vacuum state parameters, before isolating, limiting the flow, or canceling the original support partition.

[0052] The controller can also expand or shrink the support zones based on vacuum state parameters. Expansion involves incorporating one or more additional adsorption zones 2 into the support assembly; shrinkage involves removing zones from the current support assembly that are no longer needed or that create leakage. Expansion, shrinkage, and migration are all aimed at maintaining the support conditions of the target processing area.

[0053] After obtaining the predicted results of the leakage-related zones and support zones based on geometric correlation, the controller reads the vacuum state parameters output by the corresponding detection unit. If the detection results are consistent with the prediction results, the controller executes or maintains zone control according to the prediction results; if the detection results show that the predicted leakage zone does not show the corresponding state, or that the unpredicted zone shows a change in vacuum state, the controller corrects the leakage-related zone set according to the detection results.

[0054] For each support zone, the controller combines the vacuum state parameters with the current valve control state of that zone and the correspondence between the target processing area and the support zone. If the support zone cannot reach or maintain the state required for support determination, the controller can expand the support zone, migrate it to another zone, or prevent local processing that would eventually lead to separation of the target processing area. Thus, the vacuum state parameters are used both to confirm leak predictions and to determine support conditions.

[0055] Support conditions indicate whether the current combination of support zones can continue to constrain the target processing area during the final separation of local processing. The controller makes a judgment based on the spatial correspondence between the support zones and the target processing area, the combination of zones restricting the translation and rotation of the target processing area, and the corresponding vacuum state parameters. The specific judgment limits for the support conditions can be pre-calibrated according to the device and the sheet material, but the objects used for judgment remain the support zones and vacuum state parameters described in the claims.

[0056] If a combination of support zones that meets the support conditions cannot be obtained, the controller pauses through-cutting or retains a connecting bridge between the target processing area and the surrounding sheet material. A connecting bridge is a localized connection of material along a predetermined contour that has not yet been cut; its function is to delay the final separation of the target processing area. Pausing through-cutting and retaining connecting bridges can be performed selectively, or the process can be paused and the zones adjusted first, followed by a decision on whether to retain the connecting bridges, depending on the task progress.

[0057] The controller determines the position or number of connecting bridges based on the contour, center of gravity, remaining connections, and vacuum state parameters of the target processing area. The contour of the target processing area is used to determine the range of locations where connections can be retained; the center of gravity is used to determine the relationship between the separated area and the support zone; the remaining connections are used to indicate the material connections that have not yet been severed; and the vacuum state parameters are used to indicate the current state of the support zone.

[0058] Once the controller obtains a combination of support zones that meet the support conditions through zone expansion, enhancement, or migration, it controls the cutting head 4 to reach the location of the connecting bridge and cut it off. After the connecting bridge is cut off, the controller adds the corresponding through-cut trajectory to the completed through-cut and updates the connectivity status of the plate area in the target processing region. If other connecting bridges still exist, the support condition judgment and cutting process is repeated.

[0059] Example 2, as Figures 4-6As shown, a method for controlling the grooving and cutting of aluminum-plastic composite decorative panels. Step S1: The controller acquires continuous processing tasks for the same aluminum-plastic composite decorative panel 3. Continuous processing tasks include fixed-depth grooving and through-cutting. The controller identifies the current processing stage and records completed through-cuts during the actual execution of through-cutting, updating the connectivity status of the panel area based on newly added cuts.

[0060] In step S2, during the fixed-depth grooving stage, the controller acquires the support datum established by the reference surface of the support component 1, the calibration block, and the tool setting point, obtains the calibration parameters of the current aluminum-plastic composite decorative panel 3, and obtains the panel height information from the panel detection component. The controller converts the above information into corresponding coordinate relationships and determines the Z-axis control target of the Z-axis actuator 5.

[0061] In step S3, during the through-cutting stage, the controller determines the leakage-associated zones and support zones based on the current processing stage and the connectivity status of the plate area. The leakage-associated zones form a leakage connection with the completed through-cut; the support zones are used to constrain the target processing area. The controller isolates or limits the flow to the leakage-associated zones through the pipe valve group 9, and maintains adsorption, enhances adsorption, or implements zone migration for the support zones.

[0062] Step S4: The controller acquires the vacuum state parameters of adsorption zone 2 or the combination of adsorption zones, confirms or corrects the prediction results of the leakage-related zone and the support zone based on the vacuum state parameters, and determines whether the current support zone meets the support conditions of the target processing area.

[0063] Step S5: If the support conditions are not met, the controller delays the partial processing that ultimately leads to the separation of the target processing area, specifically by pausing the through-cut or retaining the connecting bridge; if the support conditions are met, the controller executes the partial processing. After the partial processing is completed, the controller updates the completed through-cut and plate area connectivity status for continued use in subsequent processing stages.

[0064] When the same aluminum-plastic composite decorative panel 3 contains multiple target processing areas, the controller saves the completed through-cut, panel area connectivity, leakage-related zones, and support zones corresponding to each target processing area. A through-cut in one target processing area may change the vacuum state of the adsorption zone 2 shared with another target processing area. Therefore, before switching target processing areas, the controller rereads the relevant vacuum state parameters.

[0065] If two target processing areas require the same adsorption partition 2 as a support partition, the controller will first determine the support conditions of the other target processing area before executing a trajectory that might cause leakage in that adsorption partition. Only after both target processing areas maintain the required support, or after an alternative support combination has been established through partition migration, will the through-cutting that would change the state of the common partition continue.

[0066] When the panel detection component fails to obtain the panel height information corresponding to the position of the processing trajectory, the controller does not replace the missing information with an unconfirmed height value. Instead, it maintains the unexecuted fixed-depth grooving section, re-obtains the panel height information, or stops the section. This process ensures that the Z-axis control target is still determined by the support datum, the panel calibration parameters, and the effective panel height information.

[0067] When the vacuum status detection component fails to obtain the vacuum status parameters corresponding to the target adsorption zone 2, or the detection results cannot be used to confirm the current support conditions, the controller will not execute the local processing that would eventually lead to the separation of the target processing area, and will remain in a paused state for through-cutting or connecting bridges. After restoring the corresponding vacuum status parameters, the leak-related zone, support zone, and support conditions will be reconfirmed.

[0068] If the execution status of a completed through-cut cannot be confirmed, the controller will not directly use the corresponding trajectory segment to update the connectivity status of the sheet metal area. The geometric association and zoning control will only be updated after it is confirmed that the corresponding trajectory segment has formed a through-cut. This process prevents premature isolation of support zones or premature judgment that the target processing area has been separated based on cuts that have not actually formed.

[0069] The structural features and control methods of the device of the present invention work together: the porous adsorption plate 10 and multiple vacuum chambers separated from each other form distinguishable adsorption zones 2; the main pipe, multiple branch pipes and branch valves enable each adsorption zone 2 to selectively connect with the vacuum source 8; the vacuum state detection component enables the controller to obtain the state parameters of the corresponding zone; the controller then determines the valve control and final separation action according to the processing stage, the completed through-cut and the connection status of the plate area.

[0070] Although fixed-depth grooving and through-cutting employ different direct control objects, both are managed by the current machining stage of the same continuous machining task. The direct control object for the fixed-depth grooving stage is the Z-axis control target of the Z-axis actuator 5; the direct control objects for the through-cutting stage include leakage-related zones, support zones, and local machining that leads to final separation. Identification of machining stages allows the aforementioned control objects to switch according to the task progress.

[0071] In the description of this invention, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only to describe the invention and not to require the invention to be constructed or operated in a specific orientation; therefore, they should not be construed as limitations on the invention. The terms "connected" and "linked" in this invention should be interpreted broadly. For example, they can refer to a connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms based on the specific circumstances.

[0072] The above description represents the preferred mode of operation of the present invention. The specific operational modes are provided solely for a better understanding of the invention's concept. Those skilled in the art can make various improvements or equivalent substitutions based on the principles of this invention, and these improvements or equivalent substitutions are also considered to fall within the scope of protection of this invention.

Claims

1. A grooving and cutting device for aluminum-plastic composite decorative panels, comprising a frame, a support assembly (1) for supporting aluminum-plastic composite decorative panels (3), a three-axis actuator installed on the frame and used to drive a cutting head (4) to move relative to the support assembly (1) in the X, Y, and Z directions, a vacuum source (8), a pipeline valve group (9), and a controller, wherein the three-axis actuator includes a Z-axis actuator (5), an X-axis actuator (6), and a Y-axis actuator (7), and the support assembly (1) is provided with multiple adsorption zones (2), the adsorption zones (2) being connected to the vacuum source (8) through the pipeline valve group (9); Its features are, The device also includes a panel detection component and a vacuum state detection component. The panel detection component is used to obtain the panel height information of the aluminum-plastic composite decorative panel (3). The vacuum state detection component is used to obtain the vacuum state parameters of each adsorption partition (2) or adsorption partition combination. The controller is connected to the three-axis actuator, the pipeline valve group (9), the panel detection component, and the vacuum state detection component, and is configured to: in the fixed-depth grooving stage, determine the Z-axis control target of the Z-axis actuator (5) based on the support datum, the calibration parameters of the aluminum-plastic composite decorative panel (3), and the panel height information; in the through-cutting stage, determine the leakage-related partition that forms a leakage connection with the through-cut and the support partition of the corresponding target processing area based on the completed through-cut and the connection status of the panel area, control the pipeline valve group (9) to isolate or limit the leakage-related partition, and maintain or enhance the adsorption of the support partition; when the vacuum state parameter indicates that the support partition does not meet the preset support conditions, prohibit the execution of local through-cutting that ultimately separates the target processing area.

2. The grooving and cutting device for aluminum-plastic composite decorative panels according to claim 1, characterized in that: The support reference includes the coordinate relationship established by the reference surface of the support component (1), the calibration block and the tool setting point; the calibration parameters of the aluminum-plastic composite decorative panel (3) include at least one of the total thickness of the panel, interlayer parameters and target remaining thickness; the controller calculates the Z-axis control target based on the support reference, the calibration parameters and the panel height information.

3. The grooving and cutting device for aluminum-plastic composite decorative panels according to claim 1, characterized in that: The plate surface detection component includes a non-contact displacement sensor located in front of the cutting head (4) in the feed direction, and a contact probe having a preset coordinate offset with the cutting head (4); the controller maps the plate surface height information to the trajectory position to be reached by the cutting head (4) according to the coordinate offset.

4. The grooving and cutting device for aluminum-plastic composite decorative panels according to claim 1, characterized in that: The adsorption partition (2) includes a porous adsorption plate (10) and a vacuum chamber group (11) disposed below the porous adsorption plate (10). The vacuum chamber group (11) includes multiple vacuum chambers that are separated from each other. The adsorption holes of the porous adsorption plate (10) are respectively connected to the corresponding vacuum chambers. The pipeline valve group (9) includes a main pipeline connected to the vacuum source (8), multiple branch pipelines connected to the main pipeline, and branch valves respectively disposed on each branch pipeline. Each branch pipeline is connected to at least one vacuum chamber.

5. The grooving and cutting device for aluminum-plastic composite decorative panels according to claim 4, characterized in that: The vacuum state detection component includes detection units respectively set at the vacuum chamber, the branch pipe or the inlet of the adsorption zone; the controller determines the leakage associated zone and the support zone according to the intersection, adjacency or connection relationship between the projection of the processing trajectory and the completed through cut on the support component (1) and the effective range of each adsorption zone (2), and verifies and adjusts the determination result according to the vacuum state parameters.

6. The grooving and cutting device for aluminum-plastic composite decorative panels according to claim 5, characterized in that: The controller divides the board area into a still-connected area, a to-be-separated area, and a separated area based on the completed through-cut. The controller selects an adsorption partition (2) corresponding to the target processing area as the support partition to restrict the translation and rotation of the target processing area. When the support partition does not meet the preset support conditions, the controller controls the cutting head (4) to pause the through-cut or retain a connecting bridge between the target processing area and the surrounding board. After forming a combination of support partitions that meet the preset support conditions, the controller controls the cutting head (4) to cut off the connecting bridge.

7. A method for controlling the grooving and cutting of aluminum-plastic composite decorative panels, applied to a grooving and cutting device for aluminum-plastic composite decorative panels, characterized in that... include: S1. Obtain the continuous processing task of the same aluminum-plastic composite decorative panel (3), the continuous processing task includes fixed-depth grooving and through cutting; S2. During the fixed-depth grooving stage, obtain the support datum, plate calibration parameters and plate height information, and determine the Z-axis control target based on the support datum, the plate calibration parameters and the plate height information; S3. During the through-cutting stage, record the completed through cuts and update the connectivity status of the board area accordingly. S4. Based on the communication state of the through cut and the plate area, determine the leakage-related partition and the corresponding target processing area support partition, isolate or limit the leakage-related partition, and maintain or enhance the adsorption of the support partition. S5. Obtain the vacuum state parameters of the support partition; when the vacuum state parameters indicate that the support partition does not meet the preset support conditions, delay the execution of the partial through-cut that ultimately separates the target processing area; after the preset support conditions are met, execute the partial through-cut.

8. The grooving and cutting control method for aluminum-plastic composite decorative panels according to claim 7, characterized in that: Based on the intersection, adjacency, or connectivity between the processing trajectory and the projection of the completed through-cut on the support component (1) and the effective range of each adsorption zone (2), the leakage-related zone and the support zone are determined; then the determination results are verified and adjusted based on the vacuum state parameters.

9. The grooving and cutting control method for aluminum-plastic composite decorative panels according to claim 8, characterized in that: according to the completed through cut, the panel area is divided into a still connected area, a to be separated area and a separated area; an adsorption partition (2) corresponding to the target processing area is selected as the support partition for restricting the translation and rotation of the target processing area from the adsorption partition (2), and the support partition is expanded, contracted or migrated according to the vacuum state parameters.

10. The method for controlling the grooving and cutting of aluminum-plastic composite decorative panels according to claim 9, characterized in that: When a support partition combination that meets the preset support conditions cannot be formed, the through-cutting is paused or the connecting bridge is retained; the position or number of the connecting bridge is determined according to the contour, center of gravity, remaining connection relationship and vacuum state parameters of the target processing area, and the connecting bridge is cut off after a support partition combination that meets the preset support conditions is formed.

Images