Multi-parameter linkage forming control method for conductive foam

Abstract

This invention discloses a multi-parameter linkage molding control method for conductive foam, belonging to the field of automatic control technology for material molding processes. The method includes the following steps: collecting continuous change records of the conductive foam foaming molding process, organizing them into a change and fluctuation sequence according to the time progression, and marking the positions of slight density fluctuations in the change and fluctuation sequence to form a fluctuation reference. By constructing a change and fluctuation sequence and marking the positions of slight density fluctuations to form a fluctuation reference, this invention identifies the sections where the adjustment extrusion trajectory and rhythm are intertwined, thereby discovering the relationship between adjustment rhythm in advance. Furthermore, by identifying overlapping segments, determining the instability propagation starting point, and performing reverse-order yield adjustment, the method releases the accumulated pressure adjustment behavior, restores the stable rhythm of foaming propagation, and improves the stability and consistency of the conductive foam molding process.

Description

Technical Field

[0001] This invention relates to the field of automatic control technology for material molding processes, specifically to a multi-parameter linkage molding control method for conductive foam. Background Technology

[0002] Multi-parameter linkage molding control of conductive foam refers to the collaborative management and synchronous control of multiple key process factors during the foaming and molding process, rather than independently adjusting a single process condition. This is achieved by continuously monitoring production conditions such as temperature changes, pressure changes, the state of the foaming agent, the dispersion state of the conductive filler, and the calendering or molding rhythm. Based on the changes exhibited by the material during the foaming expansion and structural shaping stages, the mutual influence between various process parameters is uniformly analyzed and linkedly adjusted. This ensures that different production parameters form a coordinated relationship within the same time scale, thereby maintaining a consistent molding rhythm in key stages such as foam structure formation, conductive particle construction of conductive paths, and stable control of foam thickness and density. This achieves stable control of the conductivity, elasticity, and structural uniformity of the conductive foam during the production process.

[0003] The existing technology has the following shortcomings:

[0004] Under current technological conditions, the foaming process of conductive foam typically relies on online density monitoring signals to adjust the pressure curve in real time. When the foam density monitoring signal shows only slight fluctuations, the control program is prone to misinterpreting these fluctuations as trend deviations, leading to frequent corrections of the pressure curve. Due to the inherent response lag in the foaming process, previous corrections are not fully reflected before subsequent corrections are added, easily resulting in continuous overlapping adjustments over time. This causes repeated pulling and rhythmic fluctuations in the foaming process. Under these circumstances, the stress state inside the cells changes periodically, and the unstable cell structure is prone to local collapse. Under the redistribution of expansion stress, diffusion-type instability occurs, which can lead to the overall collapse of the entire batch of material, causing significant quality risks.

[0005] The information disclosed in the background section is only intended to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a multi-parameter linkage molding control method for conductive foam to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a multi-parameter linkage molding control method for conductive foam, comprising the following steps:

[0008] Continuous change records of the conductive foam foaming process are collected and organized into a change and fluctuation sequence according to the time progression. The positions of slight density fluctuations are marked in the change and fluctuation sequence to form a fluctuation reference.

[0009] Based on the fluctuation reference, the pressure adjustment process within the corresponding time segment of the change and fluctuation sequence is reviewed. The order of entry and the rhythm of pause of adjacent adjustment actions are decomposed and sorted to form the adjustment squeezing trajectory that reflects the mutual squeezing relationship of adjustment actions. The rhythm-dependent segment is determined in the adjustment squeezing trajectory.

[0010] By combining the rhythmic ripples and changes in the segment, the density decline rhythm and pressure follow-up rhythm within the same segment are sorted out, and overlapping segments that are repeatedly chased but not fully released are identified. The starting point of instability expansion is determined in the overlapping segments.

[0011] Continue reading the subsequent changes in the fluctuation sequence around the starting point of instability expansion, and sort out the catch-up time segments that continue to extend outward to form a collapse and spread sequence. In the collapse and spread sequence, determine the transfer and recovery section.

[0012] Based on the transfer and recovery section, reverse transfer adjustment is performed, the latest adjustment action is suspended, and the adjustment interval is gradually widened in reverse time and the subsequent follow-up rhythm is slowed down. The backlog of adjustment in the previous stage is released through the pulse window to restore the stable change rhythm of foaming propulsion.

[0013] Preferably, the steps for collecting continuous change records and forming fluctuation references during the conductive foam foaming process are as follows:

[0014] Collect continuous change records during the foaming and molding process, and arrange the continuous change records in chronological order to form a change fluctuation sequence;

[0015] The changes in the position of adjacent time points in the fluctuation sequence are compared segment by segment, and the magnitude of the changes is recorded. The fluctuation observation segment that presents a reciprocating change pattern is delineated in the fluctuation sequence.

[0016] By observing the fluctuations, we can read the change records in the fluctuation sequence and organize the change direction of adjacent time positions. In the fluctuation sequence, we can mark the swing nodes where the upward and downward changes alternate to form the density micro-swing position.

[0017] By using the position of the density micro-amplitude oscillation, the position of the changing fluctuation sequence is marked and arranged in chronological order, forming a fluctuation reference in the changing fluctuation sequence for reviewing the change process.

[0018] Preferably, the process of adjusting and advancing pressure within the corresponding time segment based on the fluctuation reference and the change sequence, and determining the rhythmic entanglement segment, includes the following steps:

[0019] For the time intervals corresponding to the position of the slight fluctuation of density in the fluctuation reference reading sequence, and to organize the pressure regulation and advancement records within the time intervals to form a time correspondence;

[0020] By recording the pressure adjustment advance within a time segment, the entry position of the adjustment action is identified and the adjustment dwell segment is organized. The entry sequence of the adjustment actions is arranged according to the time advancement sequence to form an adjustment action arrangement structure.

[0021] Based on the arrangement structure of adjustment actions, organize the time arrangement relationship between adjacent adjustment action dwelling segments to form adjustment entry overlap segments within the time segments;

[0022] By using the adjustment entry overlapping section, the adjustment action entry position and adjustment dwell section are uniformly arranged, forming an adjustment squeezing trajectory that reflects the mutual squeezing relationship of the adjustment actions in the changing fluctuation sequence;

[0023] The continuous adjustment of the compression trajectory is carried out to enter the overlapping section and the time and position are marked, forming a rhythmic entanglement section in the compression trajectory.

[0024] Preferably, the time arrangement relationship between the entry position of the adjustment action and the adjustment stop section is read around the adjustment compression trajectory. The overlapping sections of adjustment entry appearing in consecutive time positions are sorted in sequence, and the time position of the consecutive adjustment entry overlapping sections is marked, forming a time distribution structure of rhythmic entanglement sections in the adjustment compression trajectory.

[0025] Preferably, the steps for combining the rhythm-dependent segments to unfold the change and fluctuation sequence and determine the starting point of instability expansion are as follows:

[0026] Extract density change records within time segments from the change and fluctuation sequence corresponding to the rhythmic segment and arrange them in the order of time progression to form change segments;

[0027] By recording density changes in different zones, density drop zones can be identified and arranged in chronological order to form a density drop rhythm.

[0028] By combining the pressure adjustment progress records of the changing sections, pressure follow-up sections are identified and arranged in chronological order to form a pressure follow-up rhythm. A correspondence between density decline sections and pressure follow-up sections is established in the changing sections.

[0029] Based on the correspondence between density decline sections and pressure follow-up sections, catch-up sections are identified and connected in chronological order to form overlapping segments.

[0030] Organize the density decline zone and pressure follow-up zone entry sequence around the overlapping segments, and mark the starting time position of the continuous catch-up relationship in the overlapping segments to form the instability expansion starting point.

[0031] Preferably, the temporal arrangement relationship between the density decline segment and the pressure follow-up segment around the overlapping segment is continuously read to identify the time segment in which the pressure follow-up segment enters the density decline segment to form a continuous catch-up relationship, and the earliest entry position in the continuous catch-up relationship time segment is recorded to form the time mark of the instability expansion start point.

[0032] Preferably, the steps for reading the change and fluctuation sequence around the instability propagation starting point and determining the transfer and recovery segment are as follows:

[0033] Starting from the instability expansion point, the continuous change records after the corresponding time position in the change fluctuation sequence are read and arranged in the order of time progression to form a continuous change segment;

[0034] By recording the density changes in continuously varying sections and the pressure regulation propulsion records, the position of the chase entry is identified and the chase time segments are organized to form a chase time segment set.

[0035] The collection of time segments is connected and organized in chronological order to form an outward-extending time arrangement path, and a collapse and spread sequence is formed in the changing and fluctuating sequence.

[0036] In the collapse and spread sequence, the changes in the end time position and subsequent time position of the chasing time segment are observed sequentially, and time segments in which no chasing entry position appears are marked to form the transfer and recovery segment.

[0037] Preferably, the reverse transfer adjustment steps based on the transfer and recovery section are as follows:

[0038] Read the adjustment entry records before the time position of the transfer and recovery segment in the time fluctuation sequence and arrange them in the time backtracking order to form the adjustment entry sequence;

[0039] By adjusting the entry sequence, the first adjustment entry behavior of the sequence is identified and marked as the latest adjustment action. In the fluctuating sequence, the latest adjustment action is stopped from continuing and a pause state is formed.

[0040] The remaining adjustment entry behaviors in the adjustment entry sequence are adjusted segment by segment according to the time backtracking order to form a dispersed arrangement structure. The adjustment follow-up behavior after the corresponding time position in the change fluctuation sequence is read in the yield and recovery section to adjust the entry rhythm and form a delayed arrangement structure.

[0041] A continuous time interval is set at the corresponding time positions of the dispersed arrangement structure and the delayed arrangement structure to form a pulse window interval. In the pulse window interval, the accumulated pressure in the front section is released and the stable change rhythm of foaming propulsion is restored.

[0042] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0043] This invention organizes the continuous changes recorded during the foaming process of conductive foam over time, constructing a sequence of fluctuations and marking the positions of slight density swings within it, thus creating a reference for reviewing the process. Based on this, the pressure adjustment process is further reviewed over time segments, allowing the sequence of adjustment actions and the rhythm of pauses to be broken down and organized within a unified trajectory, forming an adjustment compression trajectory and identifying rhythmic interference segments. Through this method, the temporal overlap between adjustment actions can be identified in a timely manner during the foaming process, clearly revealing the correspondence between the density change rhythm and the pressure adjustment rhythm. This allows for early detection of rhythmic interference during the foaming process, reducing the possibility of continuous chasing relationships between adjustment actions and maintaining a continuous and stable change in the foaming rhythm over time.

[0044] After identifying rhythm-dependent segments, this invention further identifies overlapping segments that repeatedly chase and fail to release by correspondingly organizing the density decline rhythm and pressure follow-up rhythm. The instability propagation starting point is determined within these overlapping segments. By continuously reading subsequent changes in the fluctuation sequence, a collapse and spread order is formed. Within this order, a transfer and recovery segment is identified, and reverse-order transfer adjustment is performed around this segment. By pausing the latest adjustment action, gradually widening the adjustment entry interval, and slowing down the subsequent follow-up rhythm, the accumulated adjustment behavior from the previous stage is gradually released within the pulse gap, thereby restoring a stable rhythm of foaming propagation. This ensures that density changes, pressure adjustment propagation, and the overall molding rhythm during the foaming process remain coordinated, improving the stability and molding consistency of the conductive foam molding process. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0046] Figure 1 This is a flowchart of the multi-parameter linkage molding control method for conductive foam of the present invention. Detailed Implementation

[0047] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that the description of this disclosure will be more complete and fully convey the concept of the exemplary embodiments to those skilled in the art.

[0048] This invention provides, for example Figure 1The conductive foam multi-parameter linkage molding control method shown includes the following steps:

[0049] Continuous change records of the conductive foam foaming process are collected and organized into a change and fluctuation sequence according to the time progression. The positions of slight density fluctuations are marked in the change and fluctuation sequence to form a fluctuation reference.

[0050] During the foaming and molding process of conductive foam, continuous change records are continuously introduced as the original basis for reflecting the changes in the foaming process. By sequentially organizing these records over time, the changes at each time point during the foaming process can be fully presented within the same time trajectory, thus establishing a stable foundation for identifying subsequent minor density fluctuations. Based on this, segment-by-segment organization is carried out around the continuous change records, allowing density fluctuations during the foaming process to form identifiable locations within the time trajectory. These locations are then marked to create a fluctuation reference for reviewing the change process. The specific implementation steps are as follows:

[0051] During the foaming process, continuous data collection of changes is performed, and all records are sequentially organized according to time progression, ensuring that each time progression point corresponds to a specific change record. Specifically, a starting point for time progression is determined at the beginning of foaming, and change records are collected for each consecutive time position from this starting point, creating a record for the current foaming progress at each position. As foaming progresses, these continuous change records accumulate, forming a set of continuous change records along the time progression direction. This set is then sorted by time, arranging all records in chronological order and using the time progression direction as the main line to form a change fluctuation sequence. Each position in this change fluctuation sequence corresponds to a time progression position, and a change record is stored at that position, allowing the change fluctuation sequence to fully represent the trajectory of changes during the foaming process. As foaming continues, the change fluctuation sequence gradually extends, forming a continuous sequence that fully records the changes during the foaming process, enabling subsequent density fluctuation identification to be performed within the same time progression trajectory.

[0052] The method involves segmenting the amplitude of changes in a fluctuating sequence, observing the amplitude of changes between adjacent records sequentially to reveal the changing patterns over time. Specifically, starting from the beginning of the fluctuating sequence, the amplitude of changes between adjacent time points is compared segment by segment. As the sequence extends, the amplitude of changes between each new time point and its predecessor is continuously recorded, ensuring a clear relationship between each segment. Subsequently, the amplitudes of changes at multiple consecutive time points are sequentially analyzed. When the amplitudes of changes between multiple consecutive time points exhibit a reciprocating pattern within a certain time interval, that interval is designated as the fluctuation observation interval. By arranging the change records at each time point within the fluctuation observation interval segment, a clear structure of changes is formed within the fluctuating sequence, providing a basis for identifying subsequent micro-oscillations in density.

[0053] The analysis continues by organizing the change records in the fluctuation sequence within the fluctuation observation segment. By sequentially analyzing the change records within this segment, the micro-oscillations of density can be clearly identified within the fluctuation sequence. Specifically, the starting point of the fluctuation observation segment is used as the starting point for analysis. From this point, the change records in the fluctuation sequence are read segment by segment, and the direction of change between adjacent time positions is organized. When the direction of change shows an alternating pattern of rising and falling between consecutive time positions, this time position is marked as an oscillation node and recorded as the location of the micro-oscillation of density. Subsequently, the subsequent change records in the fluctuation sequence are observed segment by segment along the time progression, ensuring that each location exhibiting an alternating pattern can be identified as a location of micro-oscillation of density. As the fluctuation sequence extends, multiple micro-oscillation locations of density are gradually identified and recorded, gradually forming a set of oscillation nodes within the fluctuation sequence that reflects the density fluctuations.

[0054] The density micro-oscillation positions are used as the basis for a unified organization of the fluctuation sequence, forming a continuous marked structure within the sequence. In practice, each density micro-oscillation position in the fluctuation sequence is marked according to the time progression, ensuring that each oscillation node has a clear identifier within the sequence. After all oscillation nodes are marked, their corresponding time positions are sequentially arranged, creating a continuous distribution relationship and establishing a fluctuation reference structure. Each oscillation node in the fluctuation reference structure is associated with a corresponding time position in the fluctuation sequence. These nodes allow for reviewing the changes within the corresponding time segment, enabling a continuous and readable reference for density micro-oscillations during the foaming process. In this way, the change and fluctuation sequence can not only record the continuous change trajectory during the foaming and propulsion process, but also form a fluctuation reference within the sequence that can be used to review the change process. This provides a stable change basis for subsequent review of the adjustment and propulsion process based on the fluctuation reference, allowing the changes in foaming and propulsion to be sorted out segment by segment in a unified change sequence and to continue to carry out subsequent change analysis.

[0055] Based on the fluctuation reference, the pressure adjustment process within the corresponding time segment of the change and fluctuation sequence is reviewed. The order of entry and the rhythm of pause of adjacent adjustment actions are decomposed and sorted to form the adjustment squeezing trajectory that reflects the mutual squeezing relationship of adjustment actions. The rhythm-dependent segment is determined in the adjustment squeezing trajectory.

[0056] Based on the established fluctuation reference, continuous review and organization are conducted on the corresponding time segments in the fluctuation sequence. This allows the pressure regulation process within the time segment where the density micro-oscillation is located to be presented segment by segment in the same time trajectory. By breaking down the entry time and duration of each pressure regulation action within the time segment, the temporal arrangement relationship between regulation behaviors can be fully expressed. On this basis, the overlap of entry between regulation behaviors is further organized to form a regulation compression trajectory that reflects the mutual compression relationship of regulation actions. Within this regulation compression trajectory, rhythmic interplay segments are identified. The specific implementation steps are as follows:

[0057] Based on fluctuation references, the corresponding time segments in the fluctuation sequence are fully read, enabling a one-to-one correspondence between the time segments where density micro-oscillations occur and the pressure regulation progression processes within the same time segment. In specific implementation, marked density micro-oscillation positions are selected in the fluctuation sequence, and the time position corresponding to these positions is used as the starting point for time segment reading. Changes in consecutive time positions are read backwards and forwards in the fluctuation sequence, ensuring that consecutive time positions before and after the density micro-oscillation position together constitute a complete time segment. After completing the time segment reading, the pressure regulation progression records corresponding to each time position within that time segment are sequentially imported and organized, ensuring that each time position corresponds to one pressure regulation progression record. This establishes a temporal correspondence between the change records in the fluctuation sequence and the pressure regulation progression records. As multiple density micro-oscillation positions are read one by one, multiple time segments in the fluctuation sequence form a change environment corresponding to the pressure regulation progression process, allowing subsequent regulation actions to be organized along the same change trajectory.

[0058] Based on the established correspondence between time segments and pressure regulation progress records, all pressure regulation progress records within a time segment are broken down and organized segment by segment, so that the entry sequence of each regulation action in the time progression trajectory can be clearly expressed. In specific implementation, starting from the beginning position of the time segment, the pressure regulation progress record corresponding to each time position is read one by one. When a change in pressure regulation progress occurs at a certain time position, that time position is marked as the entry position of the regulation action, and the entry time position of the regulation action is recorded. Subsequently, the pressure regulation progress records of subsequent time positions are read along the time progression direction. When the same regulation action persists continuously at consecutive time positions, these consecutive time positions are grouped into the same regulation dwell segment, and this regulation dwell segment is extended from the entry time position to the regulation exit time position, thus forming a complete regulation action dwell segment. When there are multiple regulation actions within a time segment, all regulation action entry positions are arranged according to the time progression sequence, so that all regulation actions in the time segment form a complete time arrangement structure according to the entry sequence, and each regulation action corresponds to a complete regulation dwell segment.

[0059] To address the temporal arrangement of the entry sequence and dwell periods of adjustment actions, the temporal arrangement relationships between adjacent adjustment actions are systematically organized segment by segment, ensuring that the overlapping relationships between adjustment actions are fully expressed within the time progression trajectory. In practice, using the time progression direction as the main line, the dwell periods of two adjacent adjustment actions are continuously observed. When the entry time of a subsequent adjustment action occurs before the dwell period of the preceding action has ended, this time position is marked as the starting point of the overlapping entry, and the change records continue to be read along the time progression direction, gradually extending the overlapping entry segment. When multiple adjustment actions enter sequentially within the same time segment and form a continuous overlap, these overlapping segments are connected and organized according to the time progression sequence, creating a continuous arrangement structure within the time segment for the overlapping entry relationships between adjustment actions. As the time progression continues, the overlapping entry segments between multiple adjustment actions gradually form a continuously extending time arrangement trajectory within the change trajectory.

[0060] Based on the established continuous arrangement structure of adjustment entry and overlapping segments, the entry positions, dwell segments, and overlapping segments of all adjustment actions within a time segment are uniformly organized, ensuring that the mutual compression relationships between adjustment actions are fully expressed in the time progression trajectory. In specific implementation, starting from the beginning of the time segment, the entry position, dwell segment, and overlapping segment of each adjustment action are uniformly arranged according to the time progression sequence, ensuring that each adjustment action occupies a specific time position in the time progression trajectory. When multiple adjustment actions form an entry overlapping relationship at consecutive time positions, these entry overlapping segments are connected segment by segment, forming a continuous change path in the time progression trajectory, and this continuous change path is recorded as the adjustment compression trajectory. In the adjustment compression trajectory, each adjustment action is arranged according to the entry sequence, and the dwell overlapping relationship and entry overlapping relationship between adjustment actions are fully expressed within the trajectory, thus enabling the mutual compression relationships between adjustment actions to form a continuous change structure in the time progression trajectory.

[0061] After the adjustment compression trajectory is formed, the rhythmic changes within the trajectory are segmented to identify the rhythmic connections between adjustment actions. Specifically, starting from the initial time position of the adjustment compression trajectory, the entry position and dwell segment corresponding to each adjustment action are observed sequentially. When adjacent adjustment actions form an overlapping entry relationship at consecutive time positions and persist across multiple time positions, this consecutive time segment is marked as a rhythmic connection segment. Subsequently, the subsequent changes in the adjustment compression trajectory are read along the time progression direction, ensuring that all consecutive overlapping adjustment entry segments are identified as rhythmic connection segments and arranged according to the time progression. Once all rhythmic connection segments are marked, they are uniformly arranged within the adjustment compression trajectory, forming a clear temporal distribution structure within the trajectory. In this way, the adjustment compression trajectory not only expresses the mutual compression relationship between adjustment actions but also forms rhythmic connection segments within the trajectory for identifying rhythmic connections, thus providing a stable foundation for subsequent changes centered around these rhythmic connection segments.

[0062] By combining the rhythmic ripples and changes in the segment, the density decline rhythm and pressure follow-up rhythm within the same segment are sorted out, and overlapping segments that are repeatedly chased but not fully released are identified. The starting point of instability expansion is determined in the overlapping segments.

[0063] Around the already identified rhythmic entanglement segments, the corresponding time ranges in the fluctuating sequence are further read and organized segment by segment. This allows the temporal arrangement relationship between density changes and pressure regulation within the rhythmic entanglement segments to be fully presented within the same trajectory. Furthermore, by segment-by-segmenting the density decline rhythm and the pressure follow-up rhythm, the catch-up relationship formed by continuous regulation behavior can be gradually identified within the fluctuating sequence. Based on this, overlapping segments that repeatedly catch up but have not yet completed their release are further identified, and the instability propagation starting point is determined within these overlapping segments. The specific implementation steps are as follows:

[0064] The process involves a complete reading of the rhythm-dependent segments within the fluctuating sequence, aligning them with their corresponding time positions. This ensures the rhythm-dependent segments form a unified timeframe with the density change records within the fluctuating sequence. Specifically, the starting point of the rhythm-dependent segment is located within the fluctuating sequence, serving as the starting point for reading. From this point, density change records are read segment by segment along the time progression, ensuring that the density change records corresponding to each time position within the rhythm-dependent segment are read sequentially. Simultaneously, starting from this starting point, preceding change records are read segment by segment in the time backward direction, forming a complete fluctuating sequence from the continuous change records before and after the rhythm-dependent segment. After completing the timeframe reading, the density change records at each time position within the fluctuating sequence are arranged chronologically, creating a continuous arrangement within a unified time trajectory. This establishes a clear range of variation for the rhythm-dependent segment within the fluctuating sequence.

[0065] Based on the changing segments corresponding to the rhythmic entanglement segments, the density change records within each changing segment are systematically organized to ensure that the density decline rhythm is fully expressed within the changing segment. In practice, starting from the initial time position of the changing segment, the density change records at each time position are read sequentially, and the density change direction between adjacent time positions is systematically organized. When the density change record at a certain time position shows a decrease relative to the previous time position, this time position is marked as the density decline start position, and the density change records at subsequent time positions continue to be read along the time progression direction. When the density change records in consecutive time positions continuously show a decrease, these consecutive time positions are grouped into the same density decline segment, and this density decline segment is extended from the density decline start position to the time position where the density change direction stops decreasing. When the density change direction changes again, a new density decline start position is identified at the new time position, gradually forming multiple consecutive density decline segments within the changing segment. In this way, the density decline rhythm within the changing segment forms a clear arrangement structure in the time progression trajectory.

[0066] To further facilitate this process, pressure adjustment progress records at corresponding time positions within the rhythmic entanglement segment are systematically organized, ensuring that the pressure follow-up rhythm can be fully expressed within the same time interval. Specifically, starting from the initial time position of the change segment, each pressure adjustment progress record is read sequentially. When a pressure adjustment progress change occurs at a certain time position, that time position is marked as the pressure follow-up entry position, and its time position within the time interval is recorded. When pressure adjustment progress changes persist at consecutive time positions, these consecutive time positions are grouped into the same pressure follow-up segment, and this pressure follow-up segment is extended from the pressure follow-up entry position to the time position where the pressure adjustment progress change ends. After organizing the pressure follow-up segments, all pressure follow-up segments are arranged in chronological order, creating a continuous arrangement structure within the change segment. Subsequently, the pressure follow-up segment and the density decline segment are matched one by one, so that each density decline segment can find the corresponding pressure follow-up segment at the same time position in the same time trajectory, thereby forming a complete correspondence between the density decline rhythm and the pressure follow-up rhythm within the changing segment.

[0067] By combining the correspondence between the density decline rhythm and the pressure follow-up rhythm, the catch-up relationships within the change segment are systematically organized to identify continuous catch-up behavior within the change segment. In practice, the temporal sequence is the main thread, and the temporal arrangement relationship between each density decline segment and its corresponding pressure follow-up segment is observed segment by segment. When the entry time of a pressure follow-up segment occurs before the end of the corresponding density decline segment, this time position is marked as the catch-up starting point, and the change record continues to be read along the temporal direction, gradually extending the catch-up segment. When a new pressure follow-up segment re-enters the same density decline segment, the new catch-up segment is connected and organized with the previous catch-up segment, forming a continuous arrangement structure of continuous catch-up relationships within the change segment. When multiple catch-up segments appear consecutively within the change segment and form a temporal overlap relationship, these overlapped segments are grouped into the same overlapping segment and arranged according to the temporal sequence, forming a continuous time segment within the change segment.

[0068] After the overlapping segments are formed, the temporal arrangement within each segment is further refined to determine the instability propagation starting point. Specifically, starting from the initial temporal position of the overlapping segment, the entry sequence of the density decline and pressure follow-up segments is observed segment by segment. When the pressure follow-up segment enters the density decline segment at multiple consecutive time points and forms a continuous catch-up relationship, the earliest time point of this continuous catch-up relationship is marked as the instability propagation starting point. Subsequently, the change records within the overlapping segment are read along the temporal progression direction, allowing the catch-up relationship after the instability propagation starting point to continue extending within the change segments, thus establishing a clear temporal position for the instability propagation starting point within the overlapping segment. In this way, the change segments corresponding to the rhythmic entanglement segment not only express the correspondence between the density decline rhythm and the pressure follow-up rhythm, but also identify overlapping segments that repeatedly catch up but have not yet fully released within the change segments, and determine the instability propagation starting point within the overlapping segments. This provides a stable foundation for subsequent changes centered around the instability propagation starting point.

[0069] Continue reading the subsequent changes in the fluctuation sequence around the starting point of instability expansion, and sort out the catch-up time segments that continue to extend outward to form a collapse and spread sequence. In the collapse and spread sequence, determine the transfer and recovery section.

[0070] Around the identified instability expansion starting point, continuous reading and sequential organization of the continuous change records after that time position in the fluctuation sequence are carried out. This allows the catch-up relationships formed after the instability expansion starting point to be presented segment by segment within a unified time progression trajectory. By breaking down the catch-up changes between consecutive time positions segment by segment, the catch-up relationships gradually form a change path extending in the time progression direction within the fluctuation sequence. Based on this, the catch-up time segments are sequentially organized to form a collapse and spread sequence. Furthermore, within the collapse and spread sequence, transfer and recovery segments that can form adjustment and release space are identified. The specific implementation steps are as follows:

[0071] The process involves locating the identified instability propagation point within the fluctuation sequence and using the time position corresponding to this point as the starting point for reading. Continuous change records following this time position are then read segment by segment. Specifically, starting from the time position corresponding to the instability propagation point, subsequent time positions are read sequentially along the time progression direction, ensuring each time position forms a continuous change record. As time progresses, each read change record is arranged in chronological order, creating a continuous temporal arrangement within the fluctuation sequence. After completing the continuous reading, all change records following the instability propagation point are connected in chronological order to form a continuous change segment. This continuous change segment completely covers all time positions following the instability propagation point, ensuring that the change state after the instability propagation point is fully expressed within the same change trajectory.

[0072] Based on the continuous change segments formed after the instability expansion starting point, the catch-up relationship is identified segment by segment within a unified time-progression trajectory, ensuring that each catch-up action forms a distinct time segment within the change segment. In specific implementation, starting from the initial time position of the continuous change segment, the density change record and pressure regulation advancement record corresponding to each time position are observed sequentially. When the pressure regulation advancement record enters the density decline segment at a certain time position, this time position is marked as the catch-up entry position and becomes the starting time position of a catch-up time segment. Subsequently, the change records at subsequent time positions are read along the time progression direction. When the pressure regulation advancement record continuously enters the density decline segment at consecutive time positions, these consecutive time positions are grouped into the same catch-up time segment, and this catch-up time segment is extended continuously from the catch-up entry position to the time position where the pressure regulation advancement record exits the density decline segment. When a new pressure regulation advancement record re-enters a new density decline segment, a new catch-up entry position is marked at the new time position, and a new catch-up time segment is formed in the same way, gradually creating multiple catch-up time segments within the continuous change segment.

[0073] Based on the identified catch-up time segments, their temporal arrangement within the changing segments is sequentially organized, ensuring that the continuously extending catch-up relationships form a sequential structure within the changing segments. In practice, all catch-up time segments are arranged in chronological order, with the instability expansion point serving as the starting node, allowing the catch-up time segments to be arranged segment by segment in the direction of temporal progression. When a catch-up time segment ends, if a new catch-up entry point appears at a subsequent time position, the new catch-up time segment is connected and organized with the previous catch-up time segment in chronological order, forming a continuous time path within the changing segment. Within this continuous time path, each catch-up time segment corresponds to a defined time segment and establishes a temporal connection with adjacent catch-up time segments. In this way, multiple catch-up time segments are connected and organized in chronological order, so that these catch-up time segments form a continuous time path within the change segment. This time path is recorded as the collapse and spread sequence, which can fully express the extension direction and time sequence of the catch-up relationship after the instability expansion starting point.

[0074] Given a collapse-spreading sequence, the rhythm of change in each time segment within this sequence is observed segment by segment to identify time segments that can create adjustment and release space. Specifically, starting from the initial time position of the collapse-spreading sequence, the time segments corresponding to each catch-up time segment are observed sequentially. When a catch-up time segment ends, and no new catch-up entry position appears at subsequent time positions, this continuous time segment is marked as a rhythm release segment. Subsequently, the change records are read along the time progression direction. When this rhythm release segment remains without a new catch-up entry position at multiple consecutive time positions, these consecutive time positions are grouped into the same release segment. Next, this release segment is correlated with the preceding catch-up time segments in the collapse-spreading sequence, forming a time segment within the collapse-spreading sequence that can inherit the preceding catch-up relationship and facilitate change transfer. This time segment is then marked as a transfer and recovery segment. As the collapse and spread sequence continues to unfold along the timeline, the locations of all release sections are identified segment by segment, enabling multiple transfer and recovery sections to form a continuous distribution structure within the collapse and spread sequence. This provides a clear temporal basis for the subsequent adjustment and release process surrounding the transfer and recovery sections.

[0075] According to the transfer and recovery section, reverse transfer adjustment is performed, the latest adjustment action is suspended, and the adjustment is gradually widened in reverse time and the subsequent follow-up rhythm is slowed down. The backlog of adjustment in the previous section is released through the pulse window to restore the stable change rhythm of foaming propulsion.

[0076] Around the established transfer and recovery zone, reverse-order transfer adjustments are carried out at the corresponding time positions in the fluctuation sequence. This allows the continuous catch-up relationship formed by previous adjustments in the time trajectory to be gradually resolved. By reversing the order of adjustment entry, the accumulated adjustment behavior from the previous stage is gradually released. At the same time, by widening the adjustment entry interval and slowing down the subsequent follow-up pace, the adjustment progress rhythm in the fluctuation sequence returns to a stable state. The specific implementation steps are as follows:

[0077] In the fluctuation sequence, the established yield-and-recovery segments are located, and the starting point of the yield-and-recovery segment is used as the reference starting point for reverse yield-and-recovery adjustments. All adjustment entry behaviors that occurred before the yield-and-recovery segment are fully read. Specifically, starting from the starting point of the yield-and-recovery segment, adjustment entry records in the fluctuation sequence are read segment by segment along the time-backtracking direction, so that the adjustment entry behavior corresponding to each time position is presented one by one in the time-backtracking trajectory. As the time-backtracking direction continues, all read adjustment entry behaviors are organized in chronological order, forming an adjustment entry sequence arranged in the time-backtracking direction. In this adjustment entry sequence, the adjustment entry behavior closest to the yield-and-recovery segment's time position is placed at the beginning of the sequence, while adjustment entry behaviors occurring at earlier time positions are placed in subsequent positions. After this arrangement is completed, the adjustment entry behavior at the beginning of the sequence is marked as the latest adjustment action, and the further advancement of this latest adjustment action is stopped in the fluctuation sequence, so that no new adjustment entry records are generated after its corresponding time position, thus forming a stopped adjustment node in the fluctuation sequence.

[0078] After pausing the latest adjustment action, the remaining adjustment entry behaviors in the adjustment entry sequence are systematically reorganized, gradually dispersing the temporal arrangement between adjacent adjustment entry behaviors. Specifically, starting with the adjustment entry behavior at the second position in the sequence, the temporal relationship between this behavior and the first adjustment entry behavior is rearranged. By shifting the entry time position of this behavior backward, a clear time interval is created between the two adjustment entry behaviors. This process continues forward along the adjustment entry sequence, similarly reorganizing the third-position adjustment entry behavior. By shifting the entry time position of the third-position adjustment entry behavior backward, a time interval is created between the third-position and second-position adjustment entry behaviors. This process is repeated for each subsequent adjustment entry behavior, resulting in a gradually dispersed arrangement of all adjustment entry behaviors in the fluctuating sequence, transforming what were originally consecutive adjustment entry behaviors into an intermittent arrangement.

[0079] Based on the established dispersed structure of adjustment entry behaviors, the pace of adjustment follow-up behaviors after the concession and recovery phase is slowed down, gradually reducing the entry rhythm of subsequent adjustment follow-up behaviors in the time trajectory. Specifically, starting from the end of the concession and recovery phase, adjustment follow-up behaviors at subsequent time positions in the fluctuation sequence are read segment by segment, and the entry time position corresponding to each adjustment follow-up behavior is recorded sequentially. When a certain adjustment follow-up behavior forms a continuous adjacent arrangement with the previous adjustment entry behavior in the time trajectory, its entry time position is shifted backward, creating a delayed entry state in the time trajectory. This process is then repeated for each subsequent adjustment follow-up behavior, gradually shifting the entry time position backward to create a gradually slowing entry rhythm in the fluctuation sequence, thus transforming the continuous adjustment follow-up behaviors in the time trajectory into an intermittent arrangement.

[0080] After the dispersed arrangement of adjustment entry behaviors and the subsequent slowing down of adjustment rhythm are completed, a pulse window segment is set in the fluctuation sequence to allow the accumulated adjustment behaviors from the previous stage to be gradually released in the time progression trajectory. In specific implementation, starting from the time start position of the transfer and recovery segment, a continuous time segment is defined in the time progression direction of the fluctuation sequence, and no new adjustment entry behaviors appear within this time segment, thus forming a window segment in the fluctuation sequence. Once the window segment is formed, the previously existing adjustment entry behaviors gradually complete their corresponding changes and influences in the time progression trajectory, while new adjustment entry behaviors reappear after the window segment ends. By forming this pulse window segment in the fluctuation sequence, the continuous superposition relationship formed between the previous adjustment entry behaviors is gradually released, thereby gradually restoring the adjustment progression rhythm in the fluctuation sequence to a stable state, and allowing the foaming process to re-establish a stable change rhythm in the time progression trajectory.

[0081] This invention organizes the continuous changes recorded during the foaming process of conductive foam over time, constructing a sequence of fluctuations and marking the positions of slight density swings within it, thus creating a reference for reviewing the process. Based on this, the pressure adjustment process is further reviewed over time segments, allowing the sequence of adjustment actions and the rhythm of pauses to be broken down and organized within a unified trajectory, forming an adjustment compression trajectory and identifying rhythmic interference segments. Through this method, the temporal overlap between adjustment actions can be identified in a timely manner during the foaming process, clearly revealing the correspondence between the density change rhythm and the pressure adjustment rhythm. This allows for early detection of rhythmic interference during the foaming process, reducing the possibility of continuous chasing relationships between adjustment actions and maintaining a continuous and stable change in the foaming rhythm over time.

[0082] After identifying rhythm-dependent segments, this invention further identifies overlapping segments that repeatedly chase and fail to release by correspondingly organizing the density decline rhythm and pressure follow-up rhythm. The instability propagation starting point is determined within these overlapping segments. By continuously reading subsequent changes in the fluctuation sequence, a collapse and spread order is formed. Within this order, a transfer and recovery segment is identified, and reverse-order transfer adjustment is performed around this segment. By pausing the latest adjustment action, gradually widening the adjustment entry interval, and slowing down the subsequent follow-up rhythm, the accumulated adjustment behavior from the previous stage is gradually released within the pulse gap, thereby restoring a stable rhythm of foaming propagation. This ensures that density changes, pressure adjustment propagation, and the overall molding rhythm during the foaming process remain coordinated, improving the stability and molding consistency of the conductive foam molding process.

[0083] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A method for controlling the multi-parameter linkage molding of conductive foam, characterized in that, Includes the following steps: Continuous change records of the conductive foam foaming process are collected and organized into a change and fluctuation sequence according to the time progression. The positions of slight density fluctuations are marked in the change and fluctuation sequence to form a fluctuation reference. Based on the fluctuation reference, the pressure adjustment process within the corresponding time segment of the change and fluctuation sequence is reviewed. The order of entry and the rhythm of pause of adjacent adjustment actions are decomposed and sorted to form the adjustment squeezing trajectory that reflects the mutual squeezing relationship of adjustment actions. The rhythm-dependent segment is determined in the adjustment squeezing trajectory. By combining the rhythmic ripples and changes in the segment, the density decline rhythm and pressure follow-up rhythm within the same segment are sorted out, and overlapping segments that are repeatedly chased but not fully released are identified. The starting point of instability expansion is determined in the overlapping segments. Continue reading the subsequent changes in the fluctuation sequence around the starting point of instability expansion, and sort out the catch-up time segments that continue to extend outward to form a collapse and spread sequence. In the collapse and spread sequence, determine the transfer and recovery section. Based on the transfer and recovery section, reverse transfer adjustment is performed, the latest adjustment action is suspended, and the adjustment interval is gradually widened in reverse time and the subsequent follow-up pace is slowed down. The backlog of adjustment in the previous section is released through the pulse gap.

2. The method for controlling the multi-parameter linkage molding of conductive foam according to claim 1, characterized in that, The following steps were taken to collect continuous change records and generate fluctuation data during the foaming and molding process of conductive foam: Collect continuous change records during the foaming and molding process, and arrange the continuous change records in chronological order to form a change fluctuation sequence; The changes in adjacent time positions in the fluctuation sequence are compared segment by segment, and the magnitude of the changes is recorded. Fluctuation observation segments that exhibit reciprocating patterns are delineated in the fluctuation sequence. By observing the fluctuations, we can read the change records in the fluctuation sequence and organize the change direction of adjacent time positions. In the fluctuation sequence, we can mark the swing nodes where the upward and downward changes alternate to form the density micro-swing position. The position of the fluctuation sequence is marked by the position of the density micro-oscillation and arranged in the order of time progression, forming a fluctuation reference in the fluctuation sequence.

3. The method for controlling the multi-parameter linkage molding of conductive foam according to claim 2, characterized in that, Based on the fluctuation reference, reviewing the pressure adjustment process within the corresponding time period of the change and fluctuation sequence, and determining the rhythmic involvement segment, the steps include the following: For the time intervals corresponding to the position of the slight fluctuation of density in the fluctuation reference reading sequence, and to organize the pressure regulation and advancement records within the time intervals to form a time correspondence; By recording the pressure adjustment progress within a time segment, the entry position of the adjustment action is identified and the adjustment dwell segment is organized. The entry sequence of the adjustment actions is arranged according to the time progression order to form an adjustment action arrangement structure. Based on the arrangement structure of adjustment actions, organize the time arrangement relationship between adjacent adjustment action dwelling segments to form adjustment entry overlap segments within the time segments; By using the adjustment entry overlapping section, the adjustment action entry position and adjustment dwell section are uniformly arranged, forming an adjustment squeezing trajectory that reflects the mutual squeezing relationship of the adjustment actions in the changing fluctuation sequence; The continuous adjustment of the compression trajectory is carried out to enter the overlapping section and the time and position are marked, forming a rhythmic entanglement section in the compression trajectory.

4. The method for multi-parameter linkage molding control of conductive foam according to claim 3, characterized in that, The time arrangement relationship between the entry position of the adjustment action and the adjustment stop section is read around the adjustment compression trajectory. The overlapping sections of adjustment entry appearing in consecutive time positions are sorted out in sequence, and the time position of consecutive adjustment entry overlapping sections is marked, forming a time distribution structure of rhythmic entanglement sections in the adjustment compression trajectory.

5. The method for controlling the multi-parameter linkage molding of conductive foam according to claim 3, characterized in that, The steps for determining the starting point of instability expansion by combining the rhythmic fluctuation sequence with the steps for analyzing the changes and undulations in the rhythmic segment are as follows: Extract density change records within time segments from the change and fluctuation sequence corresponding to the rhythmic segment and arrange them in the order of time progression to form change segments; By recording density changes in different zones, density drop zones can be identified and arranged in chronological order to form a density drop rhythm. By combining the pressure adjustment progress records of the changing sections, pressure follow-up sections are identified and arranged in chronological order to form a pressure follow-up rhythm. A correspondence between density decline sections and pressure follow-up sections is established in the changing sections. Based on the correspondence between density decline sections and pressure follow-up sections, catch-up sections are identified and connected in chronological order to form overlapping segments. Organize the density decline zone and pressure follow-up zone entry sequence around the overlapping segments, and mark the starting time position of the continuous catch-up relationship in the overlapping segments to form the instability expansion starting point.

6. The method for multi-parameter linkage molding control of conductive foam according to claim 5, characterized in that, The temporal relationship between the density decline segment and the pressure follow-up segment is continuously read around the overlapping segments. The time segment in which the pressure follow-up segment enters the density decline segment to form a continuous catch-up relationship is identified. The earliest entry position in the continuous catch-up relationship time segment is recorded to form the time mark of the instability expansion start point.

7. The method for multi-parameter linkage molding control of conductive foam according to claim 5, characterized in that, The steps for reading the fluctuation sequence around the instability propagation starting point and determining the transfer and recovery segment are as follows: Starting from the instability expansion point, the continuous change records after the corresponding time position in the change fluctuation sequence are read and arranged in the order of time progression to form a continuous change segment; By recording the density changes in continuously varying sections and the pressure regulation propulsion records, the position of the chase entry is identified and the chase time segments are organized to form a chase time segment set. The collection of time segments is connected and organized in chronological order to form an outward-extending time arrangement path, and a collapse and spread sequence is formed in the changing and fluctuating sequence. In the collapse and spread sequence, the changes in the end time position and subsequent time position of the chasing time segment are observed sequentially, and time segments in which no chasing entry position appears are marked to form the transfer and recovery segment.

8. The method for multi-parameter linkage molding control of conductive foam according to claim 6, characterized in that, The reverse transfer adjustment steps based on the transfer and recovery section are as follows: Read the adjustment entry records before the time position of the transfer and recovery segment in the time fluctuation sequence and arrange them in the time backtracking order to form the adjustment entry sequence; By adjusting the entry sequence, the first adjustment entry behavior of the sequence is identified and marked as the latest adjustment action. In the fluctuating sequence, the latest adjustment action is stopped from continuing and a pause state is formed. The remaining adjustment entry behaviors in the adjustment entry sequence are adjusted segment by segment according to the time backtracking order to form a dispersed arrangement structure. The adjustment follow-up behavior after the corresponding time position in the change fluctuation sequence is read in the yield and recovery section to adjust the entry rhythm and form a delayed arrangement structure. A continuous time interval is set at the corresponding time positions of the dispersed arrangement structure and the delayed arrangement structure to form a pulse window interval. In the pulse window interval, the accumulated pressure in the front section is released and the stable change rhythm of foaming propulsion is restored.

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