A method and system for multi-process collaborative control of a ceramic production line

Abstract

The application belongs to the field of ceramic production line control, and particularly relates to a ceramic production line multi-process collaborative control method and system, which comprises the following steps: obtaining a target control path and a continuous switching permission table, checking a body powder formula number of a first product and a second product, obtaining a first product end brick body group, a second product candidate brick body group and a brick body group record after accepting a product switching instruction, obtaining a device feedback parameter qualified state and a second product ready state according to a device feedback parameter, determining a process formula switching permission condition and sending a process formula switching instruction according to the first product end brick body group set, obtaining a transition marker value and a final shunt queue according to the brick body group record and the second product ready state, controlling a final shunt device to send a transition brick body group into a transition product temporary storage position, and sending a second product stable brick body group into an inspection packaging device or an inspection lamination device.

Description

Technical Field

[0001] This invention relates to the field of ceramic production line control technology. More specifically, this invention relates to a method and system for multi-process collaborative control of a ceramic production line. Background Technology

[0002] A continuous production line for ceramic wall and floor tiles typically consists of a press, drying equipment, glazing equipment, inkjet printing equipment, firing kiln, edge grinding equipment, conveying equipment, sorting equipment, and inspection and packaging equipment connected in sequence. The production line control system needs to centrally control multiple machines and manage production process data, equipment feedback parameters, conveying status, and product batches. When switching between different ceramic products on the same production line, even if the body powder formula remains unchanged, the glazing process, inkjet printing documents, temperature zones, brick conveying speed, and edge grinding specifications may still change. Therefore, product switching involves the issuance of process formulas, confirmation of equipment status, conveying of physical bricks, and subsequent inspection and sorting.

[0003] In existing ceramic production lines, each process equipment is generally controlled by an independent controller to execute set values. The production management system or upper control system is responsible for transmitting production tasks, process routes, and process parameters. The adjustment time for new process formulas differs between rapid response process equipment and thermal process equipment. If the switching is judged to be complete only based on the sending status of the process formula switching command or the equipment feedback parameters at a certain sampling moment, it is easy to encounter situations where the equipment has not yet entered a stable state while the brick blanks have already passed through the process equipment. At the same time, the physical brick blanks may also be rejected, split, redirected, and merged in multiple conveying channels, resulting in deviations between the planned batch and the actual arrival sequence.

[0004] Chinese invention patent CN114399274A discloses a method, system, equipment, and medium for managing ceramic production parameters. It mentions accessing each ceramic production device according to a preset polling cycle, reading first production process data and retrieving second production process data, and writing the second production process data to the currently accessed ceramic production device when the two are inconsistent. Chinese invention patent CN118377280A discloses a method, system, equipment, and medium for dynamic process control in the ceramic industry. It mentions obtaining target work orders and associating them with corresponding process routes, and controlling the process status of upstream and downstream production processes based on the node information and process rules of the target production process.

[0005] The aforementioned technologies can support the updating of process parameters or the management of process status in ceramic production equipment. However, when switching products under continuous conveying conditions, the progress of process formula switching, the stable state of equipment feedback parameters, and the actual position of the physical brick blanks do not change synchronously. The physical boundary between the first and second products also changes with the channel operation status. Existing processing methods are difficult to continuously correspond to the actual processing time of the brick blank group and the process processing equipment. This results in a lack of consistent online basis for the timing of process formula switching, the determination of transition brick blank groups, and the final diversion. Coordination difficulties still exist in ceramic production lines to complete multi-process product switching while maintaining continuous operation. Summary of the Invention

[0006] To address the technical problem of difficulty in coordinating the switching status of multi-process formulas with the actual flow status of the final brick blank group of the first product and the candidate brick blank group of the second product during continuous switching of ceramic products using a common body powder formula, resulting in a lack of corresponding online basis for the timing of process formula switching, identification of transition brick blank groups, and final diversion of each process equipment, this invention provides a multi-process collaborative control method and system for a ceramic production line, including: acquiring the target control path, continuous switching permission table, and product switching instructions; verifying the body powder formulas of the first and second products; tracking the press output; and establishing the final brick blank group of the first product and the candidate brick blank group of the second product. The system includes: brick blank groups and brick blank group records; controlling each process processing device to switch to the second product process formula based on the state of the first product's final brick blank group leaving the working area of ​​each process processing device; obtaining the execution confirmation information and equipment feedback parameters returned by each process processing device after executing the second product process formula; determining the second product's ready state based on the execution confirmation information and equipment feedback parameters; determining the transition mark value based on the second product's candidate brick blank group's experience in the working area of ​​each process processing device; forming the final diversion queue based on the brick blank group records and the transition mark value; and controlling the final diversion device to divert the transition brick blank group and the second product's stable brick blank group according to the final diversion queue.

[0007] This invention acquires the target control path, continuous switching permission table, and product switching instructions. After verifying the body powder formulas of the first and second products, it tracks the press output and controls the switching of the process formula of the second product based on the state of the brick blank group at the end of the first product leaving the working area of ​​each process equipment. It acquires the execution confirmation information and equipment feedback parameters returned by each process equipment after executing the process formula of the second product, and determines the ready state of the second product accordingly. Then, it acquires the transition mark value and the final diversion queue based on the ready state of the second product candidate brick blank group. This ensures that the switching state of the multi-process formula can correspond to the actual flow state of the brick blank group at the end of the first product and the candidate brick blank group of the second product. It provides an online basis for the process formula switching timing of each process equipment, the identification of transition brick blank groups, and the final diversion, reducing the inconsistency between the state of the process equipment and the processing state of the brick blank group during the continuous switching of ceramic products.

[0008] The present invention describes obtaining the target control path, continuous switching permission table, and product switching instruction, and verifying the billet powder formulas of the first product and the second product, including: writing the first product number, the second product number, the common billet powder formula number, the target control path number, the second product process formula, the allowable range of equipment feedback parameters, and the retention time into the continuous switching permission table; when the billet powder formula numbers of the first product and the second product are consistent with the common billet powder formula number, the product switching instruction is accepted.

[0009] This invention writes the first product number, the second product number, the common preform powder formula number, the target control path number, the second product process formula, the allowable range of equipment feedback parameters, and the holding time into a continuous switching permission table. When the preform powder formula numbers of the first and second products are consistent with the common preform powder formula number, a product switching instruction is accepted. This provides clear recording basis for the product combinations, target control paths, second product process formulas, and equipment feedback parameter judgment conditions that allow continuous switching, reducing the number of products that do not meet the common preform powder formula conditions or lack corresponding process parameters from entering the continuous switching process.

[0010] The present invention describes determining the second product's ready state based on execution confirmation information and equipment feedback parameters, including: determining the second product's process formula execution confirmation state, process formula number consistency state, and second product process formula execution confirmation time based on execution confirmation information; determining the equipment feedback parameter range state based on equipment feedback parameters; continuously detecting the second product process formula execution confirmation state, process formula number consistency state, and equipment feedback parameter range state from the second product process formula execution confirmation time; and determining the equipment feedback parameter range state as qualified when all three states remain continuously at 1 for a preset duration corresponding to the equipment feedback parameters.

[0011] This invention determines the execution confirmation status of the second product process formula, the consistency status of the process formula number, and the execution confirmation time of the second product process formula based on the execution confirmation information. It also determines the range status of the equipment feedback parameters based on the equipment feedback parameters. Starting from the execution confirmation time of the second product process formula, it continuously detects the corresponding status. After the three statuses continuously meet the equipment feedback parameter maintenance duration, it obtains the qualified status of the equipment feedback parameters. This ensures that the execution confirmation information and the equipment feedback parameters have a clear status transition relationship, reducing the situation where the equipment feedback parameters are judged to be qualified when they briefly enter the allowable range of the equipment feedback parameters or when the process formula is not yet consistent.

[0012] The present invention further includes determining the second product readiness status based on execution confirmation information and equipment feedback parameters by: obtaining the second product process formula issuance status, the second product process formula execution confirmation status, and the qualification status of each equipment feedback parameter; when all statuses are 1, the second product readiness status of the corresponding process processing equipment is set to 1, and when any status is 0, it is set to 0.

[0013] This invention obtains the status of the second product process formula issuance, the status of the second product process formula execution confirmation, and the qualification status of each equipment feedback parameter. Based on all the statuses, the second product readiness status of the corresponding process processing equipment is obtained. This allows the issuance of the process formula, execution confirmation, and continuous qualification of equipment feedback parameters to be expressed in a unified status result, reducing the need to judge the readiness of the process processing equipment based on a single equipment feedback parameter or a single process formula status.

[0014] The present invention tracks the output of the press and establishes a first product end brick blank group, a second product candidate brick blank group, and a brick blank group record, including: assigning a brick blank group identifier to each brick blank group; recording the target control path number, conveying channel number, remaining quantity of brick blank group, first and last brick sequence number, position, number of detection targets, and transition mark value; writing the brick blank group record into the channel shift queue in a first-in-first-out order; and updating the brick blank group record according to the press cycle signal, the encoder signal of the brick blank conveying equipment, and the photoelectric detection signal.

[0015] This invention assigns a brick group identifier to each brick group. The brick group record stores the target control path number, conveying channel number, remaining quantity of brick group, first and last brick sequence number, position, number of detection targets, and transition mark value. The brick group record is written into the channel shift queue in a first-in-first-out order. The brick group record is updated according to the press cycle signal, the encoder signal of the brick conveying equipment, and the photoelectric detection signal, so that the quantity, sequence, and position of the brick group have continuous data records, which helps to improve the correspondence between the brick group record and the actual position of the physical brick.

[0016] The method described in this invention for updating the brick group record based on the press cycle signal, the brick conveying equipment encoder signal, and the photoelectric detection signal includes: when a physical brick is rejected, deducting the remaining quantity of the brick group and the quantity of detection targets corresponding to the untested detection positions; when some physical bricks are turned around, splitting the brick group record and assigning a new brick group identifier; and when multiple conveying channels converge, writing the brick group record according to the actual arrival order represented by the photoelectric detection signal.

[0017] This invention deducts the remaining quantity of brick blanks and the number of detection targets corresponding to detection positions that have not yet been passed when a physical brick blank is rejected. When some physical brick blanks are turned, the brick blank group record is split and a new brick blank group identifier is assigned. When multiple conveying channels converge, the brick blank group record is written according to the actual arrival order. This allows the channel shift queue to be updated as physical brick blanks are rejected, split, turned, and converged, reducing the inconsistency between the original brick blank group record and the actual quantity, arrangement order, and conveying channel of the physical brick blanks.

[0018] The present invention describes controlling the switching of each process processing device to the second product process formula based on the state of the first product end brick blank group leaving the working area of ​​each process processing device, including: forming a first product end brick blank group set by outputting the last pressing cycle into the corresponding process processing device; when the remaining quantity of each brick blank group in the first product end brick blank group set is 0 or the tail brick of the brick blank group leaves the working area of ​​the corresponding process processing device, sending a second product process formula switching command to the process processing device.

[0019] This invention forms a set of first product end brick blanks from the last pressing cycle that enter the corresponding process equipment. When the remaining quantity of each brick blank in the set is zero or the tail brick of the brick blank leaves the working area of ​​the corresponding process equipment, a second product process formula switching command is sent. This allows all first product end brick blanks that actually enter the same process equipment in different conveying channels to participate in the switching permission judgment, reducing the situation where the second product process formula switching command is sent prematurely due to the omission of some first product end brick blanks.

[0020] The present invention describes determining the transition flag value based on the second product ready state experienced by the second product candidate brick blank group within the working area of ​​each process processing equipment, including: obtaining the time when the first brick of the second product candidate brick blank group enters and the last brick of the brick blank group leaves the working area of ​​each process processing equipment; when the second product ready state is 0 during any complete processing period, the transition flag value is set to 1, otherwise it is set to 0.

[0021] This invention obtains the times when the first brick of the second product candidate brick group enters and the last brick of the brick group leaves the working area of ​​each process equipment, and checks the second product ready state from the entry time to the exit time. This allows the second product candidate brick group to retain the case where the second product ready state is zero during the complete processing period in the transition mark value, reducing the chance of missing state changes during the processing period by judging the transition mark value based on a single state of entry time or exit time.

[0022] The present invention describes controlling the final diversion device to divert transition brick blank groups and second product stable brick blank groups according to the final diversion queue, including: saving brick blank group identifiers, remaining quantity of brick blank groups and transition mark values ​​in the final diversion queue according to the arrival order; sending transition brick blank groups with transition mark values ​​of 1 to the transition product temporary storage position, and sending second product stable brick blank groups with transition mark values ​​of 0 to the inspection and packaging equipment or inspection and bonding equipment.

[0023] This invention stores the brick group identifier, remaining quantity of brick groups, and transition mark value in the final sorting queue according to the order in which the brick groups arrive at the final sorting equipment. Based on the transition mark value, the transition brick groups are sent to the transition product temporary storage location, and the second product stable brick groups are sent to the inspection and packaging equipment or inspection and bonding equipment. This ensures that the recorded order and sorting destination in the final sorting queue correspond to the actual arrival order and transition mark value of the brick groups, reducing the possibility of the final sorting equipment using incorrect records or incorrect sorting destinations.

[0024] A multi-process collaborative control system for a ceramic production line is characterized by comprising a processor, a memory, and a communication interface, wherein the processor, memory, and communication interface are connected via a communication bus; the memory stores computer program instructions, the processor executes the computer program instructions to obtain the target control path and continuous switching permission table, track the flow of brick blanks, control the switching of process formulas, determine the ready state of the second product and the transition mark value, and controls the final diversion equipment to divert the transition brick blank group and the second product stable brick blank group through the communication interface.

[0025] This invention connects a processor, a memory, and a communication interface via a communication bus. The processor executes computer program instructions from the memory to obtain the target control path and continuous switching permission table, tracks the flow of brick blanks, controls process formula switching, determines the ready state of the second product, and the transition mark value. The communication interface controls the final diversion device to divert the transition brick blank group and the second product stable brick blank group. This enables the information processing and control instructions required for the collaborative control of multiple processes in the ceramic production line to be transmitted in the same system, reducing information transmission deviations between different control units.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention links the process formula switching status during the continuous switching process of ceramic products with the actual flow status of the physical brick blanks by using a target control path, a continuous switching permission table, a first product end brick blank group, a second product candidate brick blank group, a second product ready status, a transition mark value, and a final diversion queue. This enables the switching control of each process equipment, the identification of transition brick blank groups, and the final diversion to have a continuous data transmission relationship, reducing the inconsistency in status caused by separate control of multiple processes.

[0027] This invention tracks the quantity, sequence, position, and conveying channel of physical brick blanks through brick blank group records and channel shift queues. It also determines the process formula switching conditions of the second product based on the brick blank group set at the end of the first product. This ensures that even after physical brick blanks are removed, split, redirected, or merged, the corresponding records can still be updated according to the actual flow situation, reducing the situation where the planned brick blank group information is inconsistent with the actual flow direction of the physical brick blanks, which affects the process formula switching judgment.

[0028] This invention obtains the second product readiness state based on execution confirmation information and equipment feedback parameters, obtains a transition mark value based on the second product readiness state experienced by the second product candidate brick blank group in the working area of ​​each process processing equipment, and controls the transition brick blank group and the second product stable brick blank group to enter different positions according to the final diversion queue. This allows the brick blank groups generated during the process processing equipment adjustment to be diverted according to the actual process state experienced, reducing the situation where the transition brick blank group and the second product stable brick blank group are mixed and enter the inspection and packaging equipment or inspection and bonding equipment. Attached Figure Description

[0029] Figure 1 This invention illustrates a flowchart of a multi-process collaborative control method for a ceramic production line. Figure 2 This diagram illustrates the changes in the glaze flow rate feedback value of the glazing equipment. Figure 3 A schematic diagram showing the changes in the second product's ready state with different process equipment is shown. Figure 4 The diagram shows the final distribution results of the second product candidate brick blank group. Detailed Implementation

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention.

[0031] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0032] This invention discloses a multi-process collaborative control method for a ceramic production line, referring to... Figure 1 This includes steps S1-S7: This invention is applicable to the continuous switching process of ceramic products that use a common body powder formula but differ in subsequent processes. This invention uses the brick blank group output by the press as the tracking object. The brick blank group is all the physical brick blanks that enter the same conveying channel and maintain an adjacent arrangement within one pressing cycle. The process processing equipment in this invention is the production equipment that needs to change the stable process formula during the product switching process. The area of ​​action of the process processing equipment in this invention is the area in which the process processing equipment produces the actual processing effect on the physical brick blanks.

[0033] S1: Obtain the target control path.

[0034] It should be noted that this invention requires first determining the actual flow direction of the physical brick blanks in the ceramic production line, and based on this, determining the process processing equipment that needs to perform process formula switching, the arrangement order of each process processing equipment, and the location of the final diversion equipment. This is because subsequent process parameter reading, brick blank group position tracking, process formula switching, and transition brick blank group diversion are all based on the target control path. This invention has multiple presses, multiple drying equipment, and multiple firing kilns. The process processing equipment that different products pass through is not exactly the same. Therefore, this invention processes each target control path that is actually put into production separately.

[0035] Specifically, the present invention obtains the target control path based on the product manufacturing process card, equipment connection relationship and currently activated equipment, and records the process processing equipment number of each process processing equipment in the order in which the physical brick blank passes through the process processing equipment.

[0036] This invention defines the target control path for interior wall tiles and floor tiles as follows: press output position, bisque drying equipment, bisque kiln, glazing equipment, inkjet equipment, glaze drying equipment, firing kiln, edge grinding equipment, final distribution equipment, inspection and packaging equipment, and temporary storage position for transitional products; this invention defines the target control path for exterior wall tiles as follows: press output position, glazing equipment, glaze drying equipment, firing kiln, final distribution equipment, inspection and bonding equipment, and temporary storage position for transitional products.

[0037] This invention defines glazing equipment, inkjet equipment, and edge grinding equipment as rapid response process processing equipment, and bisque drying equipment, bisque kiln, glaze blank drying equipment, and firing kiln as thermal process processing equipment. This invention defines the location where the rapid response process processing equipment directly contacts or processes the solid brick blank as the process processing equipment's working area, and defines the entire internal brick blank channel of the thermal process processing equipment as the process processing equipment's working area.

[0038] It should be added that the final diversion device is located downstream of the last process processing device in the target control path and upstream of the inspection and packaging device or inspection and bonding device; the ceramic production line control system completes the calculation of the transition mark value before the brick blank group reaches the final diversion device.

[0039] S2: Obtain the continuous switching license table.

[0040] It should be noted that after determining the target control path, this invention needs to determine the first and second products that can be switched continuously, and for each process equipment in the target control path, it needs to determine the stable process formula of the second product, the allowable range of equipment feedback parameters, the duration of equipment feedback parameters, and the process formula switching limit. The readiness status of the second product can only be determined based on parameters that have been verified in production. This invention does not calculate intermediate process parameters based on the powder ratio, thereby avoiding the use of unverified pressing parameters, drying parameters, or firing parameters in the product switching process.

[0041] Specifically, the present invention reads the first product stable process formula and the second product stable process formula from the process formula record that has been verified in production. The first product stable process formula and the second product stable process formula respectively include the equipment setting values ​​that each process processing equipment in the target control path needs to execute.

[0042] This invention obtains a continuous switching permission table, which records the first product number, the second product number, the common preform powder formula number, the target control path number, the stable process formula of the first product, the stable process formula of the second product, the lower limit of the allowed equipment feedback parameters, the upper limit of the allowed equipment feedback parameters, the duration of the equipment feedback parameters, and the process formula switching limit.

[0043] This invention determines the lower and upper limits of allowable equipment feedback parameters according to the product manufacturing process card. When the product manufacturing process card only provides the set values ​​of the equipment feedback parameters but not the allowable range of the equipment feedback parameters, this invention obtains the allowable range of the equipment feedback parameters through a second product stable production test.

[0044] When conducting a stable production test of the second product, the equipment feedback parameters are recorded according to a fixed sampling cycle under the condition that the second product is continuously produced and the product inspection results are qualified. The continuous recording time for each stable production test of the second product is not less than 30 minutes, and the stable production test of the second product is not less than 3 times.

[0045] This invention retains the range of equipment feedback parameter changes during the period when the product inspection results are qualified in the stable production test of the second product, and selects the lower limit and upper limit of the equipment feedback parameters within the range of equipment feedback parameter changes; this invention re-produces the second product according to the selected range of equipment feedback parameters, and after the re-produced second product passes the inspection, the range of equipment feedback parameters is written into the continuous switching license table.

[0046] It should be added that when the product manufacturing process card has already specified the allowable range of equipment feedback parameters, this invention directly uses the allowable range of equipment feedback parameters specified in the product manufacturing process card, without using a second product stable production test to expand the allowable range of equipment feedback parameters.

[0047] This invention determines the duration of equipment feedback parameters by conducting product switching tests, with no fewer than three product switching tests. For each product switching test, the equipment feedback parameters are recorded starting from the moment the second product process formula is confirmed, and the duration of temporary compliance after the equipment feedback parameters have entered the allowable range and then left the allowable range is found.

[0048] This invention adds one sampling period to the longest temporary qualified duration of the corresponding equipment feedback parameters in all product switching tests, and takes the full time that is convenient for the process equipment controller to execute, as the equipment feedback parameter holding time; when there is no situation where the equipment feedback parameter leaves the allowable range again after temporary qualification, the equipment feedback parameter holding time is the larger value between the state confirmation time specified by the process equipment controller and one sampling period.

[0049] In a specific operating setting, the present invention sets the sampling period of the equipment feedback parameters to 1 second, and sets the allowable range of the glaze flow feedback value of the glazing equipment to 98% to 102% of the glaze flow setting value of the second product; the longest temporary qualified duration obtained from 3 product switching tests is 4 seconds, so the holding time of the equipment feedback parameters corresponding to the glaze flow feedback value is set to 5 seconds.

[0050] In this invention, the printing file number of the inkjet equipment must be consistent with the printing file number in the second product stable process formula, and the inkjet controller readiness value is set to 1; the status confirmation time of the inkjet equipment controller is 2 seconds, therefore the holding time of the equipment feedback parameters corresponding to the printing file number and the inkjet controller readiness value is set to 2 seconds.

[0051] This invention sets the allowable range of temperature feedback values ​​for the bisque drying equipment and glaze drying equipment to the range of the corresponding temperature setting value minus 3 degrees Celsius to the corresponding temperature setting value plus 3 degrees Celsius. The longest temporary qualified duration obtained from three product switching tests is 47 seconds. Therefore, the duration of the equipment feedback parameter corresponding to the temperature feedback value is set to 60 seconds.

[0052] This invention sets the allowable range of temperature feedback values ​​for the bisque kiln and the firing kiln to the range of the corresponding temperature zone setpoint minus 5 degrees Celsius to the corresponding temperature zone setpoint plus 5 degrees Celsius. The longest temporary qualified duration obtained from three product switching tests is 246 seconds. Therefore, the duration of the equipment feedback parameter corresponding to the temperature zone feedback value is set to 300 seconds.

[0053] The present invention sets the allowable range of the brick blank conveying speed feedback value to 99% to 101% of the set value of the second product brick blank conveying speed. The longest temporary qualified duration obtained from three product switching tests is 9 seconds. Therefore, the duration of the equipment feedback parameter corresponding to the brick blank conveying speed feedback value is set to 10 seconds.

[0054] The present invention sets the allowable range of the edge grinding specification feedback value of the edge grinding equipment to the second product edge grinding specification setting value minus 0.2 mm to the second product edge grinding specification setting value plus 0.2 mm, and sets the position value of the edge grinding execution component to 1; the status confirmation time of the edge grinding equipment controller is 2 seconds, so the holding time of the equipment feedback parameters corresponding to the edge grinding specification feedback value and the position value of the edge grinding execution component is set to 2 seconds.

[0055] This invention determines the process formula switching limits based on the instruction manual of the process processing equipment and the product manufacturing process card. When the instruction manual of the process processing equipment and the product manufacturing process card are inconsistent, this invention adopts the more stringent value.

[0056] In a specific operating setting, the present invention sets the allowable heating rate and allowable cooling rate of the bisque drying equipment and the glaze blank drying equipment to 1 degree Celsius per minute, sets the allowable heating rate and allowable cooling rate of the bisque kiln and the firing kiln to 2 degrees Celsius per minute, sets the glaze flow rate change rate of the glazing equipment to no more than 2% of the second product glaze flow rate setting value per second, and sets the brick blank conveying speed change rate to no more than 1% of the second product brick blank conveying speed setting value per second.

[0057] Upon receiving a product switching instruction, the present invention reads the green body powder formula number corresponding to the first product and the green body powder formula number corresponding to the second product, respectively. When both the green body powder formula number corresponding to the first product and the green body powder formula number corresponding to the second product are the same as the common green body powder formula number, the ceramic production line control system accepts the product switching instruction; otherwise, the ceramic production line control system refuses to perform continuous product switching according to the present invention.

[0058] It should be added that the scope of application of this invention is limited to product switching without changing the body powder formula. The first product and the second product can have different glazing processes, inkjet patterns, drying processes, firing processes or edge grinding specifications. This invention is not used to determine the candidate brick blank group of the second product when switching products involving changing the body powder formula.

[0059] S3: Obtain the second product ready condition.

[0060] It should be noted that after obtaining the continuous switching permission table, this invention needs to jointly determine the readiness status of the second product based on the process formula switching instruction, the execution confirmation information returned by the process processing equipment, and the equipment feedback parameters. The readiness status of the second product indicates whether the process processing equipment has actually executed the stable process formula of the second product and has maintained a stable state for a specified time. This invention does not determine the readiness status of the second product solely based on whether the temperature, speed, or flow rate has entered the allowable range of the equipment feedback parameters corresponding to the second product, thereby avoiding premature readiness when the allowable ranges of the equipment feedback parameters of the first product and the second product partially overlap.

[0061] Specifically, the present invention selects equipment feedback parameters based on the data provided by the existing controller of the process equipment. The equipment feedback parameters of the glazing equipment include the glaze path status and glaze flow feedback value. The equipment feedback parameters of the inkjet equipment include the print file number and inkjet controller readiness value. The equipment feedback parameters of the bisque drying equipment, bisque kiln, glaze blank drying equipment and firing kiln include the temperature zone temperature feedback value and brick blank conveying speed feedback value. The equipment feedback parameters of the edge grinding equipment include the edge grinding specification feedback value and the edge grinding execution component positioning value.

[0062] This invention assigns a unique process formula switching instruction number to each process formula switching instruction. When the ceramic production line control system sends a process formula switching instruction, it forcibly resets the second product ready state of the corresponding process processing equipment to 0, and forcibly resets the second product process formula execution confirmation state of the corresponding process processing equipment to 0.

[0063] In this invention, after the process processing equipment receives a process formula switching instruction containing a second product number and a process formula switching instruction sequence number, the second product process formula issuance status is set to 1; after the process processing equipment returns a second product stable process formula number consistent with the process formula switching instruction sequence number and execution confirmation information, the ceramic production line control system sets the second product process formula execution confirmation status to 1 and records the second product process formula execution confirmation time.

[0064] This invention sets a device feedback parameter range state for each device feedback parameter. When the device feedback parameter is between the lower limit and the upper limit of the device feedback parameter, the device feedback parameter range state is set to 1; otherwise, the device feedback parameter range state is set to 0.

[0065] This invention sets a process formula number consistency status for each process processing device. When the current process formula number of the process processing device is consistent with the stable process formula number of the second product, the process formula number consistency status is set to 1; otherwise, the process formula number consistency status is set to 0.

[0066] This invention obtains the qualified status of equipment feedback parameters based on the execution confirmation status of the second product process formula, the consistency status of the process formula number, and the range status of the equipment feedback parameters: In the formula, Number the process equipment Corresponding device feedback parameter number At sampling time The equipment feedback parameters are in a qualified state. The sampling time within the duration of the device feedback parameters; Number the process equipment The corresponding confirmation time for the second product process formulation execution, Number the process equipment Corresponding device feedback parameter number The duration for which device feedback parameters are retained. Number the process equipment At sampling time The second product process formulation execution confirmation status; Number the process equipment At sampling time The process formula numbers are consistent. Number the process equipment Corresponding device feedback parameter number At sampling time The device feedback parameter range status, min is the minimum value for calculation.

[0067] In the formula, when the execution confirmation status of the second product process formula, the consistency status of the process formula number, and the range status of the equipment feedback parameters are all 1, the multiplication result of the corresponding sampling time is 1; when the multiplication result of each sampling time within the equipment feedback parameter holding time is 1, and the current sampling time is not earlier than the sum of the execution confirmation time of the second product process formula and the holding time of the equipment feedback parameters, the qualified status of the equipment feedback parameters is 1.

[0068] It should be added that the present invention calculates the equipment feedback parameter holding time from the moment the second product process formula is confirmed. Equipment feedback parameters collected before the moment the second product process formula is confirmed are not included in the calculation of the equipment feedback parameter qualification status. When the second product process formula confirmation status, the process formula number consistency status, or the equipment feedback parameter range status becomes 0 within the equipment feedback parameter holding time, the present invention recalculates the equipment feedback parameter holding time.

[0069] This invention obtains the second product's ready state based on the second product's process formula issuance status, the second product's process formula execution confirmation status, and the qualified status of all equipment feedback parameters: In the formula, Number the process equipment At sampling time The second product ready state, Number the process equipment At sampling time The second product's process formula has been issued. Number the process equipment At sampling time The second product process formulation execution confirmation status; Number the process equipment The total number of corresponding device feedback parameters Sampling time The equipment feedback parameters indicate that it is in compliance with regulations.

[0070] In the formula, when the status of the second product process formula issuance, the status of the second product process formula execution confirmation, and the status of all equipment feedback parameters being qualified are all 1, the second product ready status is 1; when any one of the statuses is 0, the second product ready status is 0.

[0071] It should be added that the present invention records the sampling time when the second product is ready for the first time after the process formula switching command is issued as the second product ready time. The second product ready time shall not be earlier than the sum of the maximum value of the second product process formula execution confirmation time and the holding time of all equipment feedback parameters.

[0072] For example, if the glazing equipment returns the second product stable process formula number and execution confirmation information at 10:00:00, and the equipment feedback parameter corresponding to the glaze flow feedback value is maintained for 5 seconds, the earliest the qualified status of the equipment feedback parameter corresponding to the glaze flow feedback value is 1 at 10:00:05; even if the glaze flow feedback value before 10:00:00 is already within the allowable range of the equipment feedback parameter, the glaze flow feedback value before 10:00:00 is not included in the calculation of the 5-second equipment feedback parameter maintenance time.

[0073] For example, Figure 2This is a schematic diagram of the change in glaze flow feedback value of the glazing equipment. The diagram shows that the glaze flow feedback value gradually increases after the process formula switching command is issued, briefly exceeds the upper limit of the equipment feedback parameter, and then gradually decreases. After 13 seconds, it remains between the lower limit and the upper limit of the equipment feedback parameter. The equipment feedback parameter is judged based on a 5-second holding time. The qualified status of the equipment feedback parameter first changes to 1 after 18 seconds, which reduces the situation of premature qualified judgment when the glaze flow feedback value briefly enters the allowable range.

[0074] For example, Figure 3 This diagram illustrates the changes in the second product readiness status of different process equipment. The diagram shows that the inkjet printer, glazing equipment, glaze drying equipment, and firing kiln enter the second product readiness status at 5 seconds, 18 seconds, 93 seconds, and 343 seconds, respectively. Different process equipment independently completes the judgment based on their respective execution confirmation information, consistency of process formula number, equipment feedback parameter range status, and equipment feedback parameter retention time, reflecting the difference in actual adjustment time between fast-response process equipment and thermal process equipment in the ceramic production line.

[0075] S4: Identify and track product switchover boundaries.

[0076] It should be noted that after obtaining the second product readiness condition, this invention needs to determine the physical boundary between the first and second products from the press output position, and maintain the correspondence between the brick blank group identifier and the physical brick blank when the physical brick blank undergoes multi-channel conveying, rejection, splitting, turning, or merging. This is because the subsequent process formula switching time and transition mark value both depend on the actual time when the physical brick blank arrives at the process processing equipment. The first and second products use the same green body powder formula, so this invention can distinguish the pressing cycle corresponding to the first product and the pressing cycle corresponding to the second product based on the press control record.

[0077] Specifically, after receiving the product switching instruction, the present invention determines the last pressing cycle corresponding to the first product number according to the press control record, and records the physical brick blanks output to each conveying channel in the last pressing cycle as the first product end brick blank group.

[0078] The present invention records the physical brick blanks output to the same conveying channel after the first product end brick blank group according to the second product number as the second product candidate brick blank group, and assigns a unique brick blank group identifier to each first product end brick blank group and each second product candidate brick blank group.

[0079] This invention acquires a brick group record for each brick group. The brick group record includes the brick group identifier, target control path number, conveying channel number, output quantity of the brick group, remaining quantity of the brick group, sequence number of the first brick of the brick group, sequence number of the last brick of the brick group, brick group position record, detection target quantity table, and transition mark value.

[0080] The target quantity table stores the target quantity of each brick blank group at each unvisited detection position according to the detection position number. When the brick blank group is just output from the press, the target quantity of each downstream detection position is set to the output quantity of the brick blank group.

[0081] This invention sets up a channel shift queue for each conveying channel and writes the brick blank group records into the channel shift queue according to the order in which the physical brick blanks enter the conveying channel; the channel shift queue processes the brick blank group records in a first-in-first-out order, and physical brick blanks in the same conveying channel are not allowed to overtake each other during normal operation of the target control path.

[0082] This invention utilizes the press cycle signal to obtain the time of brick blank generation and the output quantity of the brick blank group, uses the encoder signal of the brick blank conveying equipment to update the brick blank group position record, and uses the photoelectric detection signals set in each conveying channel to confirm the first brick and the last brick of the brick blank group according to the detection sequence.

[0083] The encoder signal of the brick blank conveying equipment is calibrated through a fixed-length movement test. In a specific operating setting, the brick blank conveying equipment generates 20,000 encoder pulses when it moves 10 meters. Therefore, each encoder pulse corresponds to a movement distance of 0.5 mm. The ceramic production line control system updates the brick blank group position record according to the movement distance of 0.5 mm.

[0084] When a physical brick blank is detected by a photoelectric detection signal, the present invention allocates the physical brick blanks to the brick blank group record that is at the front of the channel shift queue and whose detected quantity has not yet reached the detection target quantity of the corresponding detection position, according to the detection order; when the detected quantity reaches the detection target quantity of the corresponding detection position, the present invention confirms that the tail brick of the corresponding brick blank group has passed the corresponding detection position.

[0085] It should be added that when a physical brick blank is rejected, the present invention determines the corresponding brick blank group record according to the rejection location number, the conveying channel number and the detection sequence, and deducts the rejection quantity from the remaining quantity of the brick blank group; the present invention also deducts the detection target quantity corresponding to all detection locations that have not yet been passed from the detection target quantity table, and the detection target quantity corresponding to the detection locations that have already been passed is not modified.

[0086] For example, when the press outputs 4 solid brick blanks in one pressing cycle and the two conveying channels receive 2 solid brick blanks respectively, the present invention forms 2 brick blank groups, and the output quantity of each brick blank group is 2; when 1 solid brick blank is removed from 1 brick blank group before passing the second detection position, the present invention modifies the remaining quantity of the corresponding brick blank group from 2 to 1, and modifies the detection target quantity at the second detection position and after the second detection position from 2 to 1.

[0087] When the number of detected targets after deduction is 0, the corresponding brick group record is deleted from the subsequent channel shift queue of the corresponding detection position; when the number of detected targets after deduction is greater than 0, the subsequent photoelectric detection signal only confirms the tail brick of the corresponding brick group according to the number of detected targets after deduction, and no longer waits for the physical brick according to the output number of the brick group.

[0088] When a channel shift occurs, the present invention transfers the record of the brick group that has undergone the channel shift from the source channel shift queue to the target channel shift queue. When only some of the physical bricks in a brick group undergo a channel shift, the present invention splits the brick group record according to the sequence number of the bricks that have undergone the channel shift and assigns a new brick group identifier to the split brick group record.

[0089] This invention updates the remaining quantity of each brick group in the record of each brick group formed after splitting based on the quantity of physical brick blanks retained after splitting, and simultaneously updates the quantity of detection targets corresponding to all unvisited detection positions in the detection target quantity table; the record of the brick group formed after splitting inherits the process processing equipment passing record, the second product ready status record and the transition mark value that were saved before splitting.

[0090] When multiple conveying channels converge into the same conveying channel, this invention records each brick group sequentially into the channel shift queue after convergence, according to the actual arrival order corresponding to the photoelectric detection signal at the convergence position. This invention does not use the planned arrival order before convergence to replace the actual arrival order corresponding to the photoelectric detection signal at the convergence position.

[0091] S5: Obtain the first product end brick blank set and perform process formula switching.

[0092] It should be noted that after determining and continuously tracking the product switching boundary, this invention needs to determine whether all the physical brick blanks of the first product have left the working area of ​​the corresponding process processing equipment for each process processing equipment. Only after this determination is completed can the process formula switching instruction for the second product be sent. When the brick blank group at the end of the first product is split or reversed, different brick blank groups at the end of the first product may arrive at the same process processing equipment through different conveying channels. Therefore, this invention uses the set of brick blank groups at the end of the first product instead of a single brick blank group identifier as the basis for process formula switching.

[0093] Specifically, the present invention obtains a set of first product end brick blanks for each process processing device in the target control path. The set of first product end brick blanks includes all first product end brick blanks that were output in the last pressing cycle and entered the corresponding process processing device.

[0094] When the brick blank group at the end of the first product is split, the present invention determines whether the split brick blank group enters the corresponding process processing equipment based on the target control path corresponding to the split brick blank group record; when the split brick blank group enters the corresponding process processing equipment, the present invention adds the split brick blank group identifier to the first product end brick blank group set of the corresponding process processing equipment.

[0095] When the brick blank group at the end of the first product changes direction, the present invention maps the target control path after the change to each process processing equipment; when the brick blank group after the change no longer enters the original process processing equipment, the present invention deletes the brick blank group identifier after the change from the set of brick blank groups at the end of the first product corresponding to the original process processing equipment, and adds the brick blank group identifier after the change to the set of brick blank groups at the end of the first product corresponding to the actual process processing equipment passed through.

[0096] It should be added that when all the physical brick blanks in the first product end brick blank group are rejected and do not enter the corresponding process processing equipment, the corresponding brick blank group identifier is deleted from the first product end brick blank group set of the corresponding process processing equipment; when some physical brick blanks in the first product end brick blank group are rejected, the present invention determines whether the tail brick of the first product end brick blank group has left the working area of ​​the process processing equipment according to the updated detection target quantity.

[0097] This invention checks the set of first product end brick blanks corresponding to each process processing device. Only when all brick blanks in the set of first product end brick blanks meet the condition that the remaining quantity of brick blanks is 0, or the tail brick of the updated brick blank has left the working area of ​​the corresponding process processing device, does this invention allow the sending of process formula switching instructions to the corresponding process processing device.

[0098] For example, in the last pressing cycle of the first product, one end brick blank group of the first product is formed in each of the two conveying channels, and when both end brick blank groups of the first product enter the glazing equipment, the set of end brick blank groups of the first product corresponding to the glazing equipment includes the identification of the two brick blank groups; only after the tail bricks of the two end brick blank groups of the first product leave the process processing area of ​​the glazing equipment, does the present invention send a process formula switching instruction to the glazing equipment.

[0099] When the first product end brick blank group is split into two brick blank groups before entering the firing kiln, the present invention assigns a new brick blank group identifier to the two brick blank groups formed by the splitting, and adds the two new brick blank group identifiers to the first product end brick blank group set corresponding to the firing kiln; only after all the physical brick blanks in the two new brick blank groups have left the process processing equipment working area of ​​the firing kiln, the present invention sends a process formula switching instruction to the firing kiln.

[0100] After the conditions for process formula switching are met, the present invention sends a process formula switching instruction to the rapid response process processing equipment, which includes a second product number, a second product stable process formula, and a process formula switching instruction sequence number.

[0101] After the conditions for process formula switching are met, the present invention sends a process formula switching instruction to the thermal process processing equipment, which includes a second product number, a second product stable process formula, and a process formula switching instruction sequence number; the controller of the thermal process processing equipment executes the second product stable process formula according to the process formula switching limit in the continuous switching permission table.

[0102] It should be added that after the process formula switching command is issued, the present invention continuously reads the equipment feedback parameters and updates the second product ready state according to the second product ready conditions; when the second product ready state is 0, the ceramic production line control system allows the second product candidate brick blank group to continue to pass through the process processing equipment, so as to maintain the solid brick blank in the thermal process processing equipment by utilizing the continuously conveyed second product candidate brick blank group.

[0103] This invention does not create a large brickless gap between the end brick blank group of the first product and the candidate brick blank group of the second product, nor does it require the process equipment to reach the second product ready state at a pre-calculated time. When the actual adjustment time of the process equipment increases, this invention maintains the continuity of the product switching process by increasing the actual number of transition brick blank groups.

[0104] S6: Determine the transition brick blank group online.

[0105] It should be noted that after each process processing device starts to switch the process formula, the present invention needs to associate the ready state of each second product candidate brick blank group during the period when it passes through the action area of ​​the process processing device with the corresponding brick blank group identifier, and determine whether the second product candidate brick blank group has experienced an unstable process state in any process processing device. The present invention checks the complete processing time period of the second product candidate brick blank group from entering the action area of ​​the process processing device to leaving the action area of ​​the process processing device, and does not use the single state at the time of entry to replace the actual state within the complete processing time period.

[0106] Specifically, the present invention records the moment when the first brick of the second product candidate brick group passes through the entrance of the process processing equipment's action area as the entry moment, and records the moment when the last brick of the second product candidate brick group passes through the exit of the process processing equipment's action area as the exit moment; when the brick group is split, the present invention uses the first brick and the last brick of the split brick group to obtain the corresponding entry moment and exit moment respectively.

[0107] This invention continuously maintains the second product ready state during the process processing equipment's operating area for the second product candidate brick blank group, and obtains a transition marker value according to the second product ready state experienced by each second product candidate brick blank group in the entire process processing equipment's operating area: In the formula, Number the candidate brick blanks for the second product The corresponding transition marker value, Number the candidate brick blanks for the second product. The total number of process equipment in the target control path; Number the candidate brick blanks for the second product The corresponding first brick of the brick blank group enters the process processing equipment number The entry time of the corresponding process equipment's operating area. Number the candidate brick blanks for the second product The corresponding brick blank group tail brick leaving the process processing equipment number The departure time from the corresponding process equipment's operating area; Number the process equipment Sampling time The second product is ready.

[0108] In the formula, when any one of the process processing devices has a second product ready state of 0 during the passage of the second product candidate brick blank group through the process processing device's operating area, the minimum value is 0 and the transition mark value is 1; when all process processing devices maintain the second product ready state of 1 during the passage of the second product candidate brick blank group through the process processing device's operating area, the transition mark value is 0.

[0109] It should be added that, in this invention, the second product candidate brick blank group with a transition mark value of 1 is defined as the transition brick blank group, and the second product candidate brick blank group with a transition mark value of 0 is defined as the second product stable brick blank group; the actual number of the transition brick blank group varies with the actual adjustment time of the process equipment, and a fixed number of brick blanks is not used to limit the transition brick blank group.

[0110] In this invention, after the second product candidate brick blank group leaves the last process processing equipment in the target control path, the transition mark value is calculated, and the brick blank group identifier, the remaining quantity of the brick blank group and the transition mark value are written into the final diversion queue; the final diversion queue saves the corresponding records according to the order in which the brick blank groups arrive at the final diversion equipment.

[0111] S7: Control the flow of transition brick blanks and second product stable brick blanks.

[0112] It should be noted that after the transition mark value is calculated, the present invention needs to complete the physical diversion before the brick blank group enters the normal inspection and packaging path or the normal inspection and bonding path. This allows the transition brick blank group that has experienced an unstable process state to enter the transition product temporary storage position, and allows the second product stable brick blank group that has experienced a stable process state in all process processing equipment to enter the normal production path. Sufficient conveying distance needs to be maintained between the final diversion equipment and the last process processing equipment so that the ceramic production line control system can complete the transition mark value calculation, data transmission, and preparation for the final diversion equipment to operate.

[0113] Specifically, when the first brick of the brick group is detected at the entrance of the final diversion device, the present invention reads the identifier of the first brick group, the remaining quantity of the brick group, and the transition mark value from the final diversion queue, and checks the brick group identifier in the final diversion queue with the brick group identifier in the channel shift queue.

[0114] This invention obtains the longest time for transition flag value calculation and data transmission through no less than 20 data transmission tests, and obtains the longest operating time of the final splitter device through no less than 20 final splitter device operation tests; this invention adds the longest time for transition flag value calculation and data transmission, the longest operating time of the final splitter device, and the backup time to obtain the final splitter preparation time.

[0115] In a specific operating setup, the maximum time for transition flag value calculation and data transmission is 0.5 seconds, the maximum operating time of the final diversion device is 0.8 seconds, and the standby time is set to 0.7 seconds. Therefore, the final diversion preparation time is 2 seconds. The maximum brick conveying speed upstream of the final diversion device is 0.4 meters per second, and the conveying distance corresponding to 2 seconds is 0.8 meters. Therefore, this invention sets the final diversion device 1 meter downstream of the outlet of the last process equipment.

[0116] This invention performs the final diversion action when the brick blank group identification is consistent and the transition mark value has been calculated. The final diversion device sends the transition brick blank group with a transition mark value of 1 to the transition product temporary storage position, and sends the second product stable brick blank group with a transition mark value of 0 to the inspection and packaging equipment or inspection and bonding equipment. The final diversion device maintains the corresponding diversion position until the tail brick of the corresponding brick blank group is confirmed to have passed through the final diversion device according to the remaining quantity of the brick blank group. When the brick blank group identification is inconsistent, the transition mark value has not been calculated, or the final diversion queue lacks a corresponding record, the final diversion device sends the corresponding brick blank group to the transition product temporary storage position and outputs tracking anomaly information.

[0117] Therefore, based on the actual second product ready state experienced by the second product candidate brick blank group in the working area of ​​each process equipment, the present invention accurately separates the transition brick blank group that has experienced an unstable process state from the second product stable brick blank group, thus preventing the transition brick blank group from entering the inspection and packaging equipment or the inspection and bonding equipment, thereby completing the product switching collaborative control between multiple process equipment under the condition of continuous operation of the ceramic production line.

[0118] This invention also discloses a multi-process collaborative control system for a ceramic production line, including a path configuration module, a readiness determination module, a boundary tracking module, a switching control module, a transition determination module, and a diversion control module. The path configuration module is used to obtain the target control path and a continuous switching permission table. The readiness determination module is used to obtain the qualified status of equipment feedback parameters and the readiness status of the second product. The boundary tracking module is used to obtain the brick blank group record and the set of brick blank groups at the end of the first product. The switching control module is used to send process formula switching instructions. The transition determination module is used to obtain the transition flag value and the final diversion queue. The diversion control module is used to control the final diversion equipment to perform the final diversion action.

[0119] In one embodiment, the multi-process collaborative control system for a ceramic production line includes a processor, a memory, and a communication interface. The processor, memory, and communication interface are connected via a communication bus. The memory stores computer program instructions, and the processor executes the computer program instructions to obtain the target control path and continuous switching permission table, track the flow of brick blanks, control the switching of process formulas, determine the ready state of the second product and the transition mark value, and control the final diversion equipment to divert the transition brick blank group and the second product stable brick blank group through the communication interface.

[0120] For example, Figure 4This is a schematic diagram of the final diversion results of the second product candidate brick blank groups. The diagram shows that groups 1 to 25 of the second product candidate brick blank groups were identified as transition brick blank groups and sent to the transition product temporary storage location. Groups 26 to 32 of the second product candidate brick blank groups were identified as second product stable brick blank groups and sent to the inspection and packaging equipment. The reduction in the remaining quantity of some brick blank groups comes from the physical brick blank rejection records, indicating that the final diversion results can change with the second product readiness status and the remaining quantity of brick blank groups during the actual passage of the brick blank groups through the action areas of each process equipment.

Claims

1. A method for multi-process collaborative control of a ceramic production line, characterized in that, include: Obtain the target control path, continuous switching license table and product switching instructions, and verify the preform powder formulas of the first product and the second product. Track the press output and establish records for the first product end brick blank group, the second product candidate brick blank group, and the brick blank group; Based on the status of the first product's end brick blank group leaving the working area of ​​each process processing equipment, control each process processing equipment to switch to the second product's process formula, obtain the execution confirmation information and equipment feedback parameters returned by each process processing equipment after executing the second product's process formula, and determine the second product's ready status based on the execution confirmation information and equipment feedback parameters; The transition mark value is determined based on the second product ready state experienced by the second product candidate brick blank group in the working area of ​​each process equipment, and the final diversion queue is formed based on the brick blank group record and the transition mark value. The final diversion queue controls the final diversion equipment to divert the transition brick blank group and the second product stable brick blank group.

2. The method for multi-process collaborative control of a ceramic production line according to claim 1, characterized in that, The process of obtaining the target control path, continuous switching permission table, and product switching instruction, and verifying the billet powder formulas of the first and second products, includes: writing the first product number, the second product number, the common billet powder formula number, the target control path number, the second product process formula, the allowable range of equipment feedback parameters, and the retention time into the continuous switching permission table; when the billet powder formula numbers of the first and second products are consistent with the common billet powder formula number, the product switching instruction is accepted.

3. The method for multi-process collaborative control of a ceramic production line according to claim 2, characterized in that, The step of determining the second product's ready state based on execution confirmation information and equipment feedback parameters includes: determining the second product's process formula execution confirmation state, process formula number consistency state, and second product process formula execution confirmation time based on execution confirmation information, and determining the equipment feedback parameter range state based on equipment feedback parameters; continuously detecting the second product process formula execution confirmation state, process formula number consistency state, and equipment feedback parameter range state from the second product process formula execution confirmation time; and determining the equipment feedback parameter range state as qualified when all three states remain continuously at 1 for a preset duration corresponding to the equipment feedback parameters.

4. The method for multi-process collaborative control of a ceramic production line according to claim 3, characterized in that, The step of determining the second product readiness status based on the execution confirmation information and equipment feedback parameters further includes: obtaining the second product process formula issuance status, the second product process formula execution confirmation status, and the qualification status of each equipment feedback parameter; when all statuses are 1, the second product readiness status of the corresponding process processing equipment is set to 1, and when any status is 0, it is set to 0.

5. The method for multi-process collaborative control of a ceramic production line according to claim 1, characterized in that, The tracking press output establishes the first product end brick blank group, the second product candidate brick blank group, and brick blank group records, including: assigning brick blank group identifiers to each brick blank group, recording the target control path number, conveying channel number, remaining quantity of brick blank group, first and last brick sequence number, position, number of detection targets, and transition mark value; writing the brick blank group records into the channel shift queue in first-in-first-out order, and updating the brick blank group records according to the press cycle signal, the brick blank conveying equipment encoder signal, and the photoelectric detection signal.

6. The method for multi-process collaborative control of a ceramic production line according to claim 5, characterized in that, The process of updating the brick group record based on the press cycle signal, the brick conveying equipment encoder signal, and the photoelectric detection signal includes: when a physical brick is rejected, deducting the remaining quantity of the brick group and the quantity of detection targets corresponding to the untested detection positions; when some physical bricks are turned around, splitting the brick group record and assigning a new brick group identifier; and when multiple conveying channels converge, writing the brick group record according to the actual arrival order represented by the photoelectric detection signal.

7. The method for multi-process collaborative control of a ceramic production line according to claim 5, characterized in that, The method of controlling each process processing device to switch to the second product process formula based on the state of the first product end brick blank group leaving the working area of ​​each process processing device includes: forming a first product end brick blank group set by outputting the first product end brick blank group into the corresponding process processing device in the last pressing cycle; when the remaining quantity of each brick blank group in the first product end brick blank group set is 0 or the tail brick of the brick blank group leaves the working area of ​​the corresponding process processing device, sending a second product process formula switching command to the process processing device.

8. The method for multi-process collaborative control of a ceramic production line according to claim 4, characterized in that, The step of determining the transition flag value based on the second product ready state experienced by the second product candidate brick blank group in the working area of ​​each process processing equipment includes: obtaining the time when the first brick of the second product candidate brick blank group enters and the last brick of the brick blank group leaves the working area of ​​each process processing equipment; when the second product ready state is 0 in any complete processing period, the transition flag value is set to 1, otherwise it is set to 0.

9. A multi-process collaborative control method for a ceramic production line according to claim 8, characterized in that, The step of controlling the final diversion equipment to divert the transition brick blank group and the second product stable brick blank group according to the final diversion queue includes: saving the brick blank group identifier, the remaining quantity of the brick blank group and the transition mark value in the final diversion queue according to the arrival order; sending the transition brick blank group with the transition mark value of 1 to the transition product temporary storage position, and sending the second product stable brick blank group with the transition mark value of 0 to the inspection and packaging equipment or the inspection and bonding equipment.

10. A multi-process collaborative control system for a ceramic production line, characterized in that, It includes a processor, memory, and communication interface, which are connected via a communication bus. The memory stores computer program instructions, and the processor executes the computer program instructions to obtain the target control path and continuous switching license table, track the flow of brick blanks, control the switching of process formulas, determine the ready state of the second product and the transition mark value, and control the final diversion equipment to divert the transition brick blank group and the second product stable brick blank group through the communication interface.

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