SMT production line rapid line changing method and system

Abstract

The invention relates to an SMT production line rapid line changing method and system, and the method comprises the following steps: obtaining m plates of shared materials of an upper work order A and a lower work order B and corresponding unique code related material information, and counting the remaining materials which cannot be used in the lower work order B in the m plates as q plates; generating a transfer bill of material I of the next work order B, wherein the transfer bill of material I comprises n disks of non-shared materials of the next work order B and q disks of shared materials which cannot use excess materials; the materials are removed from the work order A of the SMT line according to the Feeder list II; according to the Feeder list III, feeding the materials required by the work order B to an SMT production line; when the line changing operation of switching from the upper work order A to the lower work order B is carried out, the material returning operation of the upper work order A of the (m-q) disk of the shared material m disk and the material feeding operation of the lower work order B are omitted, so that the time of feeding and discharging Feeder operation of a large amount of materials is saved, and the material loss caused by the feeding and discharging Feeder operation is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of SMT production line changeover, and more specifically, to a method and system for quickly changing an SMT production line. Background Art

[0002] SMT production line changeover refers to the switching of different work orders on the SMT production line. Specifically, the information related to production line conversion production and manufacturing includes three types of information: production work order information, placement machine station table, and tail / remaining materials on the material tray;

[0003] The production work order information includes the product's PCBA-related model, the front and back of the PCBA, the production quantity, the production line number, the SMT production line placement machine configuration number, etc.; the placement machine station table includes: SMT production line placement machine configuration number, placement machine sequence number, placement machine operation front and back, feeder station number, feeder model, material number, material quantity, material direction, material pitch and other information; the reason for the tail / residual material of the material tray is: the material tray provided by the material supplier has a standard packaging quantity, and the production is issued according to the number of trays. Therefore, there are a large number of work orders where the actual usage is less than the work order issuance quantity, resulting in excess materials when the work order is completed;

[0004] In the traditional SMT production line changeover process, the return of work order A (the work order that is about to be completed) and the loading of work order B (the work order that is about to be switched to start production) are carried out. The return of work order A adopts:

[0005] Step 1: Remove the material of work order A from the placement machine of the SMT production line, including moving out the feeder workbench of the placement machine or removing the feeder of material A on the previous work order;

[0006] Step 2: Move the A work order materials that have been removed from the SMT production line to the tail material return area;

[0007] Step 3: Remove the materials on the feeder separately and turn them into tailings;

[0008] Step 4: After the tailings are counted, the materials are put back into the tailings bin;

[0009] The material loading method for work order B is:

[0010] Step 1: The warehouse issues materials according to work order B;

[0011] Step 2: Put the material on the Feeder, and then select to put the Feeder with the material on the Feeder workbench of the placement machine;

[0012] Step 3: Move the feeder of material B on work order to the SMT production line;

[0013] Step 4: According to the placement machine station table, put the Feeder on the SMT placement machine corresponding to work order B;

[0014] In traditional SMT production line changeovers, there are repeated operations involving shared materials:

[0015] 1) There is a shared material m disk information between work order A and work order B. When the shared material is produced in work order A, there is often excess material in m disk;

[0016] 2) Work order A needs to return material according to the return process of work order A and perform the m-plate return operation;

[0017] 3) Place work order B and press the loading button of work order B to perform the loading operation of plate m;

[0018] 4) There is waste of repeated work in 2) and 3) above;

[0019] There is a need for a method and system for quickly changing SMT production lines that can effectively reduce the waste of material upper and lower feeder operation time during production line material change in the above-mentioned shared material scenario, and reduce the material loss caused by the upper and lower feeder operations. Summary of the invention

[0020] The technical problem to be solved by the present invention is to provide a method for quickly changing an SMT production line and a system for quickly changing an SMT production line in view of the above-mentioned defects of the prior art.

[0021] The technical solution adopted by the present invention to solve its technical problem is:

[0022] A method for quickly changing an SMT production line is constructed, which includes the following steps:

[0023] Get the shared material m disk and the corresponding unique code related material information of the upper work order A and the lower work order B, and count the remaining material in the m disk that cannot be used by the lower work order B as q disk;

[0024] Generate the transfer material list I for the work order B. The transfer material list I includes the non-shared material n trays in the work order B and the shared material m trays of the q trays that cannot use the remaining material. Prepare the feeder according to the transfer material list I.

[0025] According to Feeder List II, remove the materials from the upper work order A of the SMT line. Feeder List II includes the non-shared material p tray in the upper work order A, the q tray that cannot use the remaining materials, the t tray with the changed position of the placement machine feeder in the shared material m tray that can be used by the upper work order A and the lower work order B, and the corresponding unique codes, tail / remaining material quantities and placement machine station information of the materials on the feeders corresponding to the p tray, q tray and t tray respectively;

[0026] According to Feeder list III, the materials required for work order B are put on the SMT production line. Feeder list III contains the transfer material list I, the T-disk and the corresponding material unique code information in Feeder list II, and the material position information on the placement machine of work order B.

[0027] The SMT production line quick change method of the present invention, wherein the material required by the work order B is put on the SMT production line according to the Feeder list III by:

[0028] Automatically generate the feeder list III of the materials required for the work order B;

[0029] According to the position information of the placement machine in the Feeder List III, the operator is prompted by voice or light display to move the feeder on the feeder trolley to the corresponding position of the placement machine;

[0030] Move the feeder of the feeder trolley to the position of the corresponding placement machine;

[0031] Scan the station information of the feeder workbench of the patch machine and the feeder information or the material unique code information to determine and ensure that it complies with the corresponding information in the feeder list III;

[0032] Repeat the above operation until all the feeders on the feeder list III on the feeder vehicle are put on the corresponding stations of the placement machine.

[0033] The SMT production line quick change method of the present invention, wherein the step of placing the materials required by the work order B on the SMT production line according to the Feeder list III further includes the following steps:

[0034] Automatically check whether all feeders are on the corresponding positions of the placement machine, and remind when completed;

[0035] When the placement machine starts production, it connects with the placement machine management system information, and the placement machine automatically performs the station management of material B in the work order to prevent wrong materials.

[0036] In the SMT production line quick change method of the present invention, the operation of removing materials from the upper work order A of the SMT line according to the Feeder list II adopts:

[0037] Remove the SMT machine number, front and rear operation surfaces of the SMT machine, and feeder station corresponding to the feeder according to the prompts in Feeder List II;

[0038] Remove the Feeder from the Feeder workbench of the placement machine;

[0039] Scan the removed feeder and put the feeder onto the feeder cart;

[0040] Scan the unique code of the feeder, and determine and ensure that the unique code of the material bound to the feeder belongs to the (p+q+t) disk;

[0041] Repeat the above steps until all (p+q+t) tray materials in Feeder List II are removed, automatically check and remind when completed.

[0042] The SMT production line quick line change method of the present invention, wherein the feeder material preparation according to the line transfer material list I adopts:

[0043] According to the material list I, n and q trays of materials are issued, including the unique code corresponding to each tray of materials;

[0044] n trays and q trays of materials are put into the Feeder respectively;

[0045] The feeder loaded with materials is put on the feeder car;

[0046] Transport the feeder cart to the SMT production line corresponding to work order B.

[0047] The SMT production line quick line change method of the present invention further comprises the steps of:

[0048] After the line change, the feeder car returns to the material return area.

[0049] The SMT production line quick line change method of the present invention further comprises the steps of:

[0050] Set the material cycle interval according to future production work order information;

[0051] When the feeder returns to the material return area, it is determined whether the material on the feeder is the material to be used in the current cycle;

[0052] If yes, the material on the feeder does not need to be returned, otherwise the material is unloaded from the feeder.

[0053] A SMT production line quick line change system is applied to the SMT production line quick line change method as described above, wherein the system includes a data processing unit, a bill of materials generation unit, an upper work order A removal unit and a lower work order B loading unit;

[0054] The data processing unit is used to obtain the common material m trays and the corresponding unique code related material information of the upper work order A and the lower work order B, and count the remaining material in the m trays that cannot be used by the lower work order B as q trays;

[0055] The material list generating unit is used to generate a transfer material list I for the next work order B, wherein the transfer material list I includes the non-shared material n trays in the next work order B and the shared material m trays of the q trays that cannot use the remaining materials, and prepares the feeder according to the transfer material list I; and is also used to generate a feeder list II and a feeder list III; the feeder list II includes the non-shared material p trays in the upper work order A, the q trays that cannot use the remaining materials, the t trays with changed positions of the placement machine feeder in the shared material m trays that can be used by the upper work order A and the lower work order B, and the corresponding unique codes of the materials on the feeders corresponding to the p trays, q trays, and t trays, the tail / remaining material quantity, and the placement machine station information; the feeder list III includes the transfer material list I, the t trays in the feeder list II and the corresponding material unique code information, and the placement machine station information of the material in the next work order B;

[0056] The work order A removal unit is used to remove materials from the work order A of the SMT line according to the Feeder list II;

[0057] The work order B loading unit is used to load the materials required for the work order B onto the SMT production line according to the Feeder list III.

[0058] The SMT production line quick line change system of the present invention, wherein the material required by the work order B is put on the SMT production line according to the Feeder list III adopts:

[0059] Automatically generate the feeder list III of the materials required for the work order B;

[0060] According to the position information of the placement machine in the Feeder List III, the operator is prompted by voice or light display to move the feeder on the feeder trolley to the corresponding position of the placement machine;

[0061] Move the feeder of the feeder trolley to the position of the corresponding placement machine;

[0062] Scan the station information of the feeder workbench of the patch machine and the feeder information or the material unique code information to determine and ensure that it complies with the corresponding information in the feeder list III;

[0063] Repeat the above operation until all the feeders on the feeder list III on the feeder vehicle are put on the corresponding stations of the placement machine.

[0064] In the SMT production line quick line change system of the present invention, the operation of removing materials from the upper work order A of the SMT line according to the Feeder list II adopts:

[0065] Remove the SMT machine number, front and rear operation surfaces of the SMT machine, and feeder station corresponding to the feeder according to the prompts in Feeder List II;

[0066] Remove the Feeder from the Feeder workbench of the placement machine;

[0067] Scan the removed feeder and put the feeder onto the feeder cart;

[0068] Scan the unique code of the feeder, and determine and ensure that the unique code of the material bound to the feeder belongs to the (p+q+t) disk;

[0069] Repeat the above steps until all (p+q+t) tray materials in Feeder List II are removed, automatically check and remind when completed.

[0070] The beneficial effects of the present invention are:

[0071] 1. When switching from the upper work order A to the lower work order B, the material return operation of the upper work order A and the material loading operation of the lower work order B in the (mq) tray of the shared material m tray are omitted, saving a lot of material loading and unloading feeder operation time and reducing material loss caused by loading and unloading feeder operations;

[0072] 2. When the proportion of shared materials in the lower work order B is very high, avoid the line change operation mode of removing the feeder workbench of the placement machine of the upper work order A and inserting the feeder workbench of the placement machine of the lower work order B, so as to save the time of removing, disassembling and transporting the feeder workbench of the placement machine and the operation space in the workshop;

[0073] 3. No need to configure additional placement machine feeder workstations, saving investment;

[0074] 4. After the line change, if there are materials on the feeder material cart that will be used in the future production work order cycle, the materials on the feeder do not need to be returned, which saves the time of putting materials on and off the feeder and reduces the material loss of the feeding and unloading operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work:

[0076] Figure 1 This is a flow chart of a quick line change method for an SMT production line according to a preferred embodiment of the present invention;

[0077] Figure 2 This is a flow chart of a quick line change method for an SMT production line according to a preferred embodiment of the present invention;

[0078] Figure 3 This is a flow chart of a quick line change method for an SMT production line according to a preferred embodiment of the present invention;

[0079] Figure 4 It is a principle block diagram of the SMT production line quick line change system of the preferred embodiment of the present invention. DETAILED DESCRIPTION

[0080] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0081] The SMT production line quick line change method of the preferred embodiment of the present invention is as follows: Figure 1 As shown, the following steps are included:

[0082] S01: Get the shared material m disks and the corresponding unique code related material information of the upper work order A and the lower work order B, and count the remaining material in the m disk that cannot be used by the lower work order B as q disks;

[0083] S02: Generate a transfer material list I for the next work order B. The transfer material list I includes n trays of non-shared materials between the previous work order A and the next work order B (n trays refer to the non-shared materials in the B work order) and q trays of the shared material m trays that cannot use the remaining materials. Prepare materials for the feeder according to the transfer material list I;

[0084] S03: Remove materials from the upper work order A of the SMT line according to the Feeder list II. The Feeder list II includes the non-shared material p tray in the upper work order A, the q tray that cannot use the remaining material, the t tray with the changed position of the placement machine feeder in the shared material m tray that can be used by the upper work order A and the lower work order B, and the corresponding unique code, tail / remaining material quantity and placement machine station information of the materials on the feeder corresponding to the p tray, q tray and t tray respectively;

[0085] S04: Put the materials required for work order B on the SMT production line according to Feeder list III. Feeder list III contains the t-disk and corresponding material unique code information in the transfer material list I and Feeder list II, as well as the material position information on the placement machine of work order B;

[0086] The beneficial effects of the present invention are:

[0087] 1. When switching from the upper work order A to the lower work order B, the material return operation of the upper work order A and the material loading operation of the lower work order B in the (mq) tray of the shared material m tray are omitted, saving a lot of material loading and unloading feeder operation time and reducing material loss caused by loading and unloading feeder operations;

[0088] 2. When the proportion of shared materials in the lower work order B is very high, avoid the line change operation mode of removing the feeder workbench of the placement machine of the upper work order A and inserting the feeder workbench of the placement machine of the lower work order B, so as to save the time of removing, disassembling and transporting the feeder workbench of the placement machine and the operation space in the workshop;

[0089] 3. No need to configure additional placement machine feeder workstations, saving investment;

[0090] 4. After the line change, if there are materials on the feeder material cart that will be used in the future production work order cycle, the materials on the feeder do not need to be returned, which saves the time of putting materials on and off the feeder and reduces the material loss of the feeding and unloading operations.

[0091] The specific implementation can be done in the following ways. Some professional terms are explained as follows:

[0092] 1.Feeder

[0093] The feeder cart adopts a structure combining a trolley and a rack, and multiple feeders can be carried on the rack;

[0094] 2.Feeder barcode

[0095] The Feeder already has a scannable unique Feeder code.

[0096] 3. Material feeder operation

[0097] According to the feeder station order in the placement machine station table, load the materials onto the corresponding feeder model;

[0098] Scan the material unique code and feeder unique code respectively to ensure that the position of the feeder unique code and the related information of the material unique code are consistent with the position information of the placement machine;

[0099] The system automatically binds the feeder unique code and the material unique code;

[0100] 4. Material feeder operation

[0101] According to the system prompts, take the materials out of the Feeder;

[0102] Scan the material and feeder unique code, and the system will unbind the binding information between the original material and the feeder unique code;

[0103] Among them, according to Feeder List III, the materials required for work order B are put on the SMT production line using:

[0104] S11: Automatically generate the feeder list III of materials required for placing work order B;

[0105] S12: According to the position information of the placement machine in the Feeder List III, the operator is prompted by voice or light display to put the feeder on the feeder trolley to the corresponding position of the placement machine;

[0106] S13: Move the feeder of the feeder trolley to the station of the corresponding placement machine;

[0107] S14: Scan the station information of the feeder workbench of the chip placement machine and the feeder information or the material unique code information to determine and ensure that it complies with the information corresponding to the feeder list III;

[0108] S15: Repeat the operation (S12-S14) until all the feeders on the feeder list III on the feeder car are put on the corresponding station of the placement machine;

[0109] S16: Automatically check whether all feeders are on the corresponding positions of the placement machine, and remind when completed;

[0110] S17: When the SMT machine starts production, it connects with the SMT machine management system information, and the SMT machine automatically performs the station management for preventing wrong material placement of material B in the work order.

[0111] The existing placement machine feeder is an intelligent feeder. Each feeder has electronic unique code information. When the feeder is loading materials, the material unique code information is bound to the feeder unique code. Therefore, by obtaining the feeder unique code information, the material unique code information can be obtained.

[0112] When the placement machine changes the work order and changes the line, the placement program of the work order is called in. The placement program already contains the feeder station information. The placement machine will automatically obtain the unique feeder station position information of the placement machine feeder workbench. The placement machine control computer will automatically compare the material information on the feeder according to the station table, and make a mismatch comparison to see if the material information, feeder specification information, and feeder station position information are consistent. If there is an error, an alarm will be given or the machine will be shut down due to an alarm.

[0113] This system communicates and transmits the binding information of the material unique code and the feeder unique code corresponding to the shared material mq disk of the upper work order, and the binding information of the material unique code and the feeder unique code corresponding to the transfer list I of the lower work order B to the placement machine control computer for error-proof material comparison management.

[0114] Benefits: When the factory MES (manufacturing execution system) traces the work order materials, the system provides the material information bound to the feeder unique code, eliminating the need to perform the traditional feeder and material binding and scanning operations, saving operation time;

[0115] Among them, according to Feeder List II, the material is removed from the upper work order A of the SMT line by:

[0116] S21: Remove the SMT machine number, front and rear operation surfaces of the SMT machine, and feeder station corresponding to the feeder according to the prompts in the Feeder List II;

[0117] S22: Remove the Feeder from the Feeder workbench of the placement machine;

[0118] S23: Scan the removed feeder and put the feeder onto the feeder cart;

[0119] S24: Scan the unique code of the feeder, and determine and ensure that the unique code of the material bound to the feeder belongs to the (p+q+t) disk;

[0120] S25: Repeat the above operations (S21-S24) until all the (p+q+t) tray materials in Feeder List II are removed, automatically check and remind when completed.

[0121] This system will prompt the placement machine Feeder List II at the end of production of work order A, including the machine serial number, front and back of the machine, and the station position information of the machine Feeder workbench, through the display screen or PDA display and voice broadcast on the Feeder trolley, or after this system communicates with the placement machine control computer, the placement machine obtains the Feeder List II, and the placement machine control computer initiates the lighting of the corresponding feeder station position on the placement machine Feeder workbench to instruct employees to operate.

[0122] After taking out the Feeder from the SMT machine, scan the unique code of the Feeder, and the Feeder trolley will indicate that the position where the Feeder can be placed will light up. Put the Feeder into the Feeder trolley at the lighted position. Alternatively, this system is connected to the control computer of the SMT machine. After taking out the Feeder from the Feeder workbench of the SMT machine, the control computer of the SMT machine will notify the Feeder trolley of this system of the relevant information of the taken-out Feeder. The Feeder trolley will indicate that the position where the Feeder can be placed will light up. Then put the taken-out Feeder into the indicated position of the trolley. This system automatically obtains the relevant information of the Feeder unique code, and there is no need to scan the unique code of the Feeder.

[0123] Benefits: foolproof paperless operation, avoid errors and waste of time, and reduce the time of scanning the unique code of the feeder;

[0124] Among them, according to the line transfer material list I, the feeder material preparation adopts:

[0125] According to the material list I, n and q trays of materials are issued, including the unique code corresponding to each tray of materials;

[0126] n trays and q trays of materials are put into the Feeder respectively;

[0127] The feeder loaded with materials is put on the feeder car;

[0128] Transport the feeder cart to the SMT production line corresponding to work order B.

[0129] The method further comprises the steps of:

[0130] After the line change, the feeder car returns to the material return area;

[0131] Set the material cycle interval according to future production work order information;

[0132] When the feeder returns to the material return area, it is determined whether the material on the feeder is the material to be used in the current cycle;

[0133] If yes, the material on the feeder does not need to be returned, otherwise the material is unloaded from the feeder.

[0134] According to the cycle set by the user in this system, after the system is connected to the customer's production planning system, it obtains the production planning work order information within the cycle, and automatically calculates whether the returned Feeder material can be used in other production planning work orders within the cycle. If it can be used, it will be retained on the Feeder material cart. When the work order within the cycle needs to use the issued material, the Feeder with the material unique code corresponding to the Feeder unique code is directly issued. There is no need to follow the traditional return process to perform a series of actions such as Feeder unloading, material shelf loading, unloading the material using the material, and material reloading the material. When the material is not needed within the cycle, the material is unloaded from the Feeder.

[0135] Benefits: It can avoid the waste of operations when some returned feeder materials can be used in the work order within the cycle, including the operation of putting materials on the feeder, putting materials on the shelf, taking materials off the shelf when using the materials, putting materials on the feeder again, and the material loss caused by the operation of putting materials on and off the feeder;

[0136] A SMT production line quick line change system is applied to the SMT production line quick line change method as mentioned above, such as Figure 4 As shown, the system includes a data processing unit 100, a bill of materials generating unit 101, an upper work order A removal unit 102 and a lower work order B loading unit 103;

[0137] The data processing unit 100 is used to obtain the common material m trays and the corresponding unique code related material information of the upper work order A and the lower work order B, and count the remaining material in the m trays that cannot be used by the lower work order B as q trays;

[0138] The material list generation unit 101 is used to generate a transfer material list I for the next work order B, wherein the transfer material list I includes the non-shared material n trays in the next work order B and the shared material m trays that cannot use the remaining material q trays, and prepares the feeder according to the transfer material list I; it is also used to generate a feeder list II and a feeder list III; the feeder list II includes the non-shared material p trays in the upper work order A, the remaining material q trays that cannot use the remaining material, the shared material m trays that can be used by the upper work order A and the lower work order B, and the t trays with the changed position of the placement machine feeder, and the corresponding unique codes of the materials on the feeders corresponding to the p trays, q trays, and t trays, respectively, the tail / remaining material quantity, and the placement machine station information; the feeder list III includes the transfer material list I, the t trays in the feeder list II and the corresponding material unique code information, and the placement machine station information of the material in the next work order B;

[0139] The work order A removal unit 102 is used to remove the material from the work order A of the SMT line according to the Feeder list II;

[0140] The work order B loading unit 103 is used to load the materials required for the work order B onto the SMT production line according to the Feeder list III;

[0141] The system using this application has the following effects:

[0142] 1. When switching from the upper work order A to the lower work order B, the material return operation of the upper work order A and the material loading operation of the lower work order B in the (mq) tray of the shared material m tray are omitted, saving a lot of material loading and unloading feeder operation time and reducing material loss caused by loading and unloading feeder operations;

[0143] 2. When the proportion of shared materials in the lower work order B is very high, avoid the line change operation mode of removing the feeder workbench of the placement machine of the upper work order A and inserting the feeder workbench of the placement machine of the lower work order B, so as to save the time of removing, disassembling and transporting the feeder workbench of the placement machine and the operation space in the workshop;

[0144] 3. No need to configure additional placement machine feeder workstations, saving investment;

[0145] 4. After the line change, if there are materials on the feeder material cart that will be used in the future production work order cycle, the materials on the feeder do not need to be returned, which saves the time of putting materials on and off the feeder and reduces the material loss of the feeding and unloading operations.

[0146] Preferably, according to Feeder List III, the materials required for work order B are put on the SMT production line using:

[0147] Automatically generate the feeder list III of the materials required for the work order B;

[0148] According to the position information of the placement machine in the Feeder List III, the operator is prompted by voice or light display to put the feeder on the feeder trolley to the corresponding position of the placement machine;

[0149] Move the feeder of the feeder trolley to the position of the corresponding placement machine;

[0150] Scan the station information of the feeder workbench of the patch machine and the feeder information or the material unique code information to determine and ensure that it complies with the corresponding information in the feeder list III;

[0151] Repeat the operation until all the feeders on the feeder list III on the feeder car are put on the corresponding positions of the placement machine.

[0152] Preferably, the operation of removing the material from the upper work order A of the SMT line according to the Feeder list II is as follows:

[0153] Remove the SMT machine number, front and rear operation surfaces of the SMT machine, and feeder station corresponding to the feeder according to the prompts in Feeder List II;

[0154] Remove the Feeder from the Feeder workbench of the placement machine;

[0155] Scan the removed feeder and put the feeder onto the feeder cart;

[0156] Scan the unique code of the feeder, and determine and ensure that the unique code of the material bound to the feeder belongs to the (p+q+t) disk;

[0157] Repeat the above steps until all (p+q+t) tray materials in Feeder List II are removed, automatically check and remind when completed.

[0158] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A method for rapid line change of an SMT production line, characterized in that: The following steps are involved: Get the shared material m disk and the corresponding unique code related material information of the upper work order A and the lower work order B, and count the remaining material in the m disk that cannot be used by the lower work order B as q disk; Generate the transfer material list I for the work order B. The transfer material list I includes the non-shared material n trays in the work order B and the shared material m trays of the q trays that cannot use the remaining material. Prepare the feeder according to the transfer material list I. According to Feeder List II, remove the materials from the upper work order A of the SMT line. Feeder List II includes the non-shared material p tray in the upper work order A, the q tray that cannot use the remaining materials, the t tray with the changed position of the placement machine feeder in the shared material m tray that can be used by the upper work order A and the lower work order B, and the corresponding unique codes, tail / remaining material quantities and placement machine station information of the materials on the feeders corresponding to the p tray, q tray and t tray respectively; According to Feeder list III, the materials required for work order B are put on the SMT production line. Feeder list III contains the transfer material list I, the T-disk and the corresponding material unique code information in Feeder list II, and the material position information on the placement machine of work order B.

2. The SMT production line quick line change method according to claim 1, characterized in that: According to Feeder List III, the materials required for work order B are put on the SMT production line using: Automatically generate the feeder list III of the materials required for the work order B; According to the position information of the placement machine in the Feeder List III, the operator is prompted by voice or light display to put the feeder on the feeder trolley to the corresponding position of the placement machine; Move the feeder of the feeder trolley to the position of the corresponding placement machine; Scan the station information of the feeder workbench of the patch machine and the feeder information or the material unique code information to determine and ensure that it complies with the corresponding information in the feeder list III; Repeat the above operation until all the feeders on the feeder list III on the feeder vehicle are put on the corresponding stations of the placement machine.

3. The SMT production line quick change method according to claim 2, characterized in that: The process of putting the materials required for work order B on the SMT production line according to the Feeder list III also includes the following steps: Automatically check whether all feeders are on the corresponding positions of the placement machine, and remind when completed; When the placement machine starts production, it connects with the placement machine management system information, and the placement machine automatically performs the station management of material B in the work order to prevent wrong materials.

4. The SMT production line quick change method according to claim 1, characterized in that: The operation of removing materials from the upper work order A of the SMT line according to the Feeder list II adopts: Remove the SMT machine number, front and rear operation surfaces of the SMT machine, and feeder station corresponding to the feeder according to the prompts in Feeder List II; Remove the Feeder from the Feeder workbench of the placement machine; Scan the removed feeder and put the feeder onto the feeder cart; Scan the unique code of the feeder, and determine and ensure that the unique code of the material bound to the feeder belongs to the (p+q+t) disk; Repeat the above steps until all (p+q+t) tray materials in Feeder List II are removed, automatically check and remind when completed.

5. The SMT production line quick change method according to claim 1, characterized in that: According to the line transfer material list I, the feeder material preparation adopts: According to the material list I, n and q trays of materials are issued, including the unique code corresponding to each tray of materials; n trays and q trays of materials are put into the Feeder respectively; The feeder loaded with materials is put on the feeder car; Transport the feeder cart to the SMT production line corresponding to work order B.

6. The SMT production line quick line change method according to claim 1, characterized in that: The method further comprises the steps of: After the line change, the feeder car returns to the material return area.

7. The SMT production line quick change method according to claim 6, characterized in that: The method further comprises the steps of: Set the material cycle interval according to future production work order information; When the feeder returns to the material return area, it is determined whether the material on the feeder is the material to be used in the current cycle; If yes, the material on the feeder does not need to be returned, otherwise the material is unloaded from the feeder.

8. A SMT production line quick line change system, applied to the SMT production line quick line change method as described in any one of claims 1-7, characterized in that: The system includes a data processing unit, a bill of materials generation unit, an upper work order A removal unit and a lower work order B loading unit; The data processing unit is used to obtain the common material m trays and the corresponding unique code related material information of the upper work order A and the lower work order B, and count the remaining material in the m trays that cannot be used by the lower work order B as q trays; The material list generating unit is used to generate a transfer material list I for the next work order B, wherein the transfer material list I includes the non-shared material n trays in the next work order B and the shared material m trays that cannot use the remaining material q trays, and prepares the feeder according to the transfer material list I; and is also used to generate a feeder list II and a feeder list III; the feeder list II includes the non-shared material p trays in the upper work order A, the remaining material q trays that cannot use the remaining material, the shared material m trays that can be used by the upper work order A and the lower work order B, and the t trays whose positions on the placement machine feeder have changed, as well as the corresponding unique codes of the materials on the feeders corresponding to the p trays, q trays, and t trays, respectively, the tail / remaining material quantity, and the placement machine station information; the feeder list III includes the transfer material list I, the t trays in the feeder list II and the corresponding material unique code information, as well as the placement machine station information of the material in the next work order B; The work order A removal unit is used to remove materials from the work order A of the SMT line according to the Feeder list II; The work order B loading unit is used to load the materials required for the work order B onto the SMT production line according to the Feeder list III.

9. The SMT production line quick line change system according to claim 8, characterized in that: According to Feeder List III, the materials required for work order B are put on the SMT production line using: Automatically generate the feeder list III of the materials required for the work order B; According to the position information of the placement machine in the Feeder List III, the operator is prompted by voice or light display to move the feeder on the feeder trolley to the corresponding position of the placement machine; Move the feeder of the feeder trolley to the station of the corresponding placement machine; Scan the station information of the feeder workbench of the patch machine and the feeder information or the material unique code information to determine and ensure that it complies with the corresponding information in the feeder list III; Repeat the above operation until all the feeders on the feeder list III on the feeder vehicle are put on the corresponding stations of the placement machine.

10. The SMT production line quick line change system according to claim 8, characterized in that: The operation of removing materials from the upper work order A of the SMT line according to the Feeder list II adopts: Remove the SMT machine number, front and rear operation surfaces of the SMT machine, and feeder station corresponding to the feeder according to the prompts in Feeder List II; Remove the Feeder from the Feeder workbench of the placement machine; Scan the removed feeder and put the feeder onto the feeder cart; Scan the unique code of the feeder, and determine and ensure that the unique code of the material bound to the feeder belongs to the (p+q+t) disk; Repeat the above steps until all (p+q+t) tray materials in Feeder List II are removed, automatically check and remind when completed.

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