Work guidance device, work guidance system, and work guidance method

Abstract

Provided is a work guidance device capable of performing an instruction of preparation corresponding to a required time in a screen printing machine for a component that needs to be delivered or recovered. The work guidance device includes: a required time acquisition unit that acquires a device required time for a component used in a screen printing machine, the device required time including a time at which at least one of a delivery time at which a new component needs to be delivered to the screen printing machine and a recovery time at which a component that has been used in the screen printing machine needs to be recovered; a setting unit that sets a departure target time at which a departure from a departure place to the screen printing machine is required and information of a component, which is an object component, that needs to be worked on at a device required time corresponding to the departure target time, in a manner that catches up with the device required time acquired by the required time acquisition unit; and a display instruction unit that causes a plurality of work instruction information to be displayed in a list, for work instruction information in which the departure target time and the information of the object component set by the setting unit are associated.

Description

Technical Field

[0001] This disclosure relates to techniques for guiding the delivery and retrieval of components used in screen printing machines. Background Technology

[0002] Patent Document 1 describes a material management device that issues a preparation instruction to retrieve a solder can containing solder paste from a material storage warehouse. The material management device in Patent Document 1 generates a preparation instruction to retrieve the solder can from the material storage warehouse based on production plan information including the type of solder paste and information on the material condition of the solder paste stored in the material storage warehouse. The material management device then sends the generated preparation instruction to the operator's portable terminal. Existing technical documents Patent documents

[0003] Patent Document 1: Japanese Patent Application Publication No. 2018-190871 Summary of the Invention The technical problem that the invention aims to solve

[0004] However, in screen printing machines that use masks with printed patterns to print solder paste onto substrates, in addition to solder paste, various components such as masks and squeegees need to be delivered and retrieved. Furthermore, when managing multiple production lines, it is necessary to schedule the delivery and retrieval of components for each screen printing machine on each line. Therefore, a technology is needed that can provide operators with instructions on preparation in accordance with the required timing for the delivery and retrieval of components at the screen printing machine.

[0005] This disclosure was made in view of the aforementioned technical problems, and its purpose is to provide a work guidance device, a work guidance system, and a work guidance method that can execute instructions for preparation corresponding to the timing required in a screen printing machine for components that need to be delivered or retrieved. Means for solving technical problems

[0006] To solve the above-mentioned technical problems, this specification discloses a job guidance device comprising: a time request acquisition unit, which acquires device time requests for components used in a screen printing machine, the device time requests including at least one of a delivery time when a new component needs to be delivered to the screen printing machine and a recycling time when a component already used in the screen printing machine needs to be recycled; a setting unit, which sets a departure target time for departing from a departure point to the screen printing machine and information about the component, i.e., the target component, that needs to operate at the device time request corresponding to the departure target time in a manner that keeps up with the device time requests acquired by the time request acquisition unit; and a display instruction unit, which establishes job instruction information that associates the departure target time and the information about the target component set by the setting unit, and displays multiple job instruction information at a glance.

[0007] In addition, to solve the above-mentioned technical problems, this specification discloses a job guidance system comprising: a screen printing machine; a production line management device for managing a production line equipped with the screen printing machine; and a control device connected to each of the multiple production line management devices for managing the production sequence in the production lines managed by each of the multiple production line management devices. The job guidance system comprises: a request time acquisition unit for acquiring device request times for components used in the screen printing machine, the device request times including at least one of a delivery time when a new component needs to be delivered to the screen printing machine and a recycling time when a component already used in the screen printing machine needs to be recycled; a setting unit for setting a departure target time for departing from a departure point to the screen printing machine and information about the component, i.e., the target component, that needs to operate at the device request time corresponding to the departure target time; and a display instruction unit for establishing job instruction information that associates the departure target time set by the setting unit with the information about the target component, thereby displaying multiple job instruction information at a glance.

[0008] Furthermore, the content of this disclosure is not limited to implementation as a work guidance device or work guidance system; it is also extremely beneficial as a work guidance method for displaying work instruction information. Invention Effects

[0009] According to the operation guidance device, operation guidance system and operation guidance method disclosed herein, it is possible to execute preparation instructions corresponding to the timing required in the screen printing machine for components that need to be delivered or retrieved. Attached Figure Description

[0010] Figure 1This is a diagram showing the structure of the job guidance system 10 of this embodiment. Figure 2 This is a schematic diagram and a partial enlarged view showing an example of a work guidance system 10 including a printing press 11. Figure 3 This is a schematic diagram of the storage device 40 and the printing press 11. Figure 4 This diagram shows the action of moving the screen mask M into the storage device 40, and the diagram shows the state where the moving-in / moving-out unit 47 is in the released position. Figure 5 This diagram shows the action of moving the screen mask M into the storage device 40, and the state in which the moving-in and moving-out unit 47 holds the screen mask M in the holding position. Figure 6 This diagram shows the action of moving the screen mask M into the storage device 40, and it is a diagram of the state after the screen mask M has been moved in. Figure 7 This is a block diagram of the job guidance system 10. Figure 8 This is a diagram showing the processing flow of displaying job instruction information 73. Figure 9 This is a diagram showing a summary of the job instruction information 73 displayed on the display terminal 6. Figure 10 It is a conceptual diagram used to illustrate the device's required time T1, the target departure time T2, and the target start time of the operation T3. Detailed Implementation

[0011] Hereinafter, an embodiment of the work guidance system of the present disclosure will be described in detail with reference to the accompanying drawings. Figure 1 The structure of the job guidance system 10 in this embodiment is shown. Figure 1 As shown, the job guidance system 10 includes multiple production lines 2, multiple production line management devices 3, a control device 4, an automated guided vehicle 5, and a display terminal 6. Production lines 2, for example, include a printer 11, a mounting device 13, a reflow oven 14, and a substrate appearance inspection machine 15, arranged from upstream to downstream of production line 2. The job guidance system 10 is a system that transports substrates S from upstream to downstream of production line 2 and mounts components (electronic components, etc.) onto the substrates S. Furthermore, in the following description, as... Figure 1 As shown, taking the direction (left and right, etc.) of the printing press 11 viewed from the front as a reference, the direction of transporting the substrate S is called the left-right direction (X-axis direction), the direction that is parallel to the plane of the transported substrate S and orthogonal to the left-right direction is called the front-back direction (Y-axis direction), and the direction that is orthogonal to both the left-right direction and the front-back direction is called the up-down direction (Z-axis direction).

[0012] The printing machine 11 is a screen printing machine, which is an apparatus for printing a viscous fluid, such as a paste-like solder (hereinafter referred to as solder paste), onto a substrate S. Furthermore, the viscous fluid printed by the printing machine 11 is not limited to solder paste; it can also be a printing agent with similar properties, such as silver paste or an adhesive. The mounting device 13 is an apparatus for mounting components onto the substrate S printed with solder paste. The reflow oven 14 is an apparatus for heating the substrate S with mounted components, causing the solder paste to melt and solidify. Thus, components are mounted onto the substrate S. The substrate appearance inspection machine 15 is an apparatus for inspecting the mounting status of the substrate S with mounted components.

[0013] Production line management device 3 and overall management device 4 are communicatively connected to each device of production line 2 via network 7. Production line management device 3 manages production line 2 and the progress status of each device on production line 2. Each device on production line 2 exchanges information with production line management device 3 and obtains information such as the progress status of other devices. Overall management device 4 exchanges information with multiple production line management devices 3 and manages the production sequence in each production line 2. Details of production line management device 3 and overall management device 4 will be described later.

[0014] The automated guided vehicle 5 moves within a production facility equipped with a work guidance system 10, delivering components required for production line 2 and retrieving used components. A management device 4 manages the components transported by the automated guided vehicle 5, its current position, etc. In this embodiment, as an example of components required for production line 2, the case of components required for printing press 11 (such as screen printing mask M, described later) will be explained. In the production facility equipped with the work guidance system 10, a storage warehouse 8 is provided for storing components required for production line 2. The automated guided vehicle 5 moves between the storage warehouse 8 and production line 2, and within the production facility, for example, automatically transporting screen printing mask M. The automated guided vehicle 5 is an example of the transport device of this disclosure. Furthermore, the components of this disclosure are not limited to those required for printing press 11. Additionally, the transport device of this disclosure is not limited to vehicles with wheels; it can also be a device that moves using a movement mechanism other than wheels, such as tracks. Furthermore, the transport device can also be a flying device such as a drone. That is, the method of movement of the transport device is not limited to walking on the floor of the production facility.

[0015] Display terminal 6, for example, is a personal computer, located in storage 8. Display terminal 6 is connected to network 7 and displays information obtained from production line management device 3, control device 4, etc. This information is, for example, work instruction information 73 (described later). Figure 7 , Figure 9The work guidance system 10 displays work instruction information 73 on the display terminal 6, which instructs the automated guided vehicle 5 (AGV) to prepare for the retrieval and delivery of parts. The operator in the storage facility 8 confirms the work instruction information 73 to carry out the delivery and retrieval of parts. In this embodiment, the work guidance system 10 is a system for transporting parts by both the AGV 5 and a human operator. Details regarding the work instruction information 73 will be described later. Furthermore, the device displaying the work instruction information 73 is not limited to fixed devices such as personal computers described above, but can also be portable devices such as laptops, tablets, and smartphones.

[0016] in addition, Figure 1 The structure of the work guidance system 10 shown is one example. For example, the work guidance system 10 may have only one production line 2 and a production line management device 3, or it may have multiple management devices 4. Furthermore, the work guidance system 10 may also include devices other than those mentioned above, such as a solder inspection machine for checking the application status of solder paste. Additionally, in Figure 1 The diagram shows multiple automated guided vehicles (AGVs) 5, but the work guidance system 10 can be a structure with only one AGV 5, or it can be a structure with two or more AGVs. Alternatively, the work guidance system 10 can also be a system that does not have AGVs 5 and where all components are transported manually. In this case, the operator can also transport the components manually while confirming the work instruction information 73 described later.

[0017] (Automatic changing system for screen mask M) Next, the system for automatically changing the screen mask M of the printing press 11 will be described. For example, the system disclosed in International Publication WO2019 / 225002 can be used as the system for automatically changing the screen mask M. Therefore, the following description will provide a general overview of the system for automatic changing. The printing press 11 is connected to a storage device 40. The automated guided vehicle 5 temporarily stores the component being transported (in this embodiment, the screen mask M) in the storage device 40. Figures 2-6 As shown, the printing press 11 uses a squeegee 25 to press solder paste from the screen mask M into the pattern holes formed in the screen mask M, thereby applying (printing) the solder paste onto the substrate S below through these pattern holes. Additionally, Figure 2 The illustrations of the reflow oven 14 and the substrate appearance inspection machine 15 are omitted.

[0018] Printing press 11 includes a control unit 21 (see reference). Figure 7 ), Printing unit 22, Mask processing unit 26, Substrate processing unit 30, Cleaning unit 32, Supply unit 34, Storage device 35 (see reference) Figure 7The control unit 21 is, for example, a microprocessor such as a CPU, which executes a control program (not shown) stored in the storage device 35 to control the entire printing press 11. The storage device 35 includes, for example, RAM, ROM, HDD, etc. The storage device 35 stores task data (JOB) used when producing the substrate S (see reference 1)... Figure 7 Furthermore, storage device 35 is not limited to the storage media described above; it can also be other storage media such as SSDs and flash memory, or a combination of these. Additionally, storage device 35 can also be external storage media such as USB flash drives, CD-ROMs, DVD-RAMs, etc. The same applies to the other storage devices 62, 65, and 79 described later.

[0019] The printing section 22 is located at the upper part of the printing press 11 and is a unit that uses a screen mask M to print solder paste onto the substrate S. For example... Figure 2 As shown in the enlarged view, the printing unit 22 includes a printing head 23, a printing moving part 24, and a squeegee 25. The printing moving part 24 includes guides formed in the front-rear direction to move the printing head 23 in the front-rear direction. The squeegee 25 is a component for applying solder paste to the screen mask M and is disposed on the lower surface side of the printing head 23. In the printing unit 22, a total of two squeegees 25 are provided in the front-rear direction. The squeegee 25 needs to be replaced depending on the size of the substrate S to be produced. In addition, a mask moving part 27 is provided on the lower surface side of the printing head 23. The mask moving part 27 is a rod for hooking the screen mask M and moving the screen mask M, and is lowered to a position abutting the screen mask M by a cylinder (not shown).

[0020] like Figure 3As shown, the mask processing unit 26 is positioned vertically between the printing unit 22 and the substrate processing unit 30, positioning the screen mask M and supporting it in a horizontal position. When the screen mask M is replaced, it is pulled by the mask moving part 27 located in the printing unit 22 and moves forward and backward along the guide of the mask processing unit 26, where it is fixed. The substrate processing unit 30 is located below the mask processing unit 26 and includes a substrate transport unit 31, a clamping device 37, and a lifting platform 38. The printing machine 11 has transport ports on both sides in the left-right direction. The substrate transport unit 31 transports the substrate S, which is brought in from the upstream (left) transport port, to the right and discharges it from the downstream transport port. The substrate transport unit 31 transports the substrate S below the screen mask M located inside the machine. The clamping device 37 is located on both sides of the substrate S in the front-back direction. The lifting platform 38, with a support block 39 mounted on it, is raised and lowered by a drive source (not shown) such as a motor or cylinder. The lifting platform 38 holds the substrate S in a fixed manner by raising the support block 39, for example, clamping it between the support block 39 and the clamping device 37 in the vertical direction. The substrate processing unit 30 raises and lowers the substrate S, which is positioned by the clamping device 37, via a lifting mechanism (not shown), so that the substrate S contacts or moves away from the screen mask M from below.

[0021] The support block 39 is a component used for vacuum suction to correct the deflection of the substrate S. A ventilation hose connected to a vacuum pump (not shown) is installed on the lifting platform 38. The substrate processing unit 30 corrects the deflection of the substrate S by using the vacuum pump to evacuate the air chamber formed by the support block 39. The support block 39 is formed according to the size of the substrate S, and when there are pre-mounted components on the back side of the substrate S, it has recesses corresponding to the positions of those components. Therefore, the support block 39 needs to be replaced depending on the type of substrate S to be produced. Furthermore, the components for clamping and correcting the deflection of the substrate S are not limited to the support block 39; they can also be columnar components such as support pins.

[0022] The cleaning unit 32 is disposed vertically between the mask processing unit 26 and the substrate processing unit 30 to clean the back surface of the screen mask M. The cleaning unit 32 has a cleaning component 33, which is used to clean the back surface of the screen mask M. The cleaning component 33 is, for example, a cleaning paper. The cleaning component 33 becomes contaminated during cleaning and therefore needs to be replaced according to a specified number of uses and usage period.

[0023] The supply unit 34 is a unit that supplies solder paste contained in the cartridge 36 to the screen mask M. The supply unit 34 is located in front of the print head 23 and applies pressure to the cartridge 36 to expel the solder paste from the cartridge 36. The cartridge 36 needs to be replaced because the amount of solder paste it contains decreases with repeated printing.

[0024] Additionally, a balance detection sensor 36A for detecting the remaining amount of solder paste is installed in box 36 (see reference). Figure 3 As the remaining amount detection sensor 36A, a liquid level sensor or liquid level switch can be used, for example, to detect the height of the liquid level in the container of the cartridge 36. The printing press 11 detects the remaining amount of solder paste in the cartridge 36 based on the detection signal from the remaining amount detection sensor 36A. However, the method for detecting the remaining amount of solder paste is not limited to using the aforementioned remaining amount detection sensor 36A. For example, a camera can be used to photograph the solder paste (mixed solder roll) discharged from the cartridge 36 onto the screen mask M, and the amount of solder paste used can be detected based on the captured image data, and the remaining amount can be calculated based on the amount used.

[0025] The screen mask M has different perforations depending on the printed pattern, therefore it needs to be replaced with a screen mask M of different printed patterns depending on the type of substrate S to be produced. Furthermore, the screen mask M accumulates solder paste after repeated use, therefore it needs to be cleaned and replaced with a screen mask M of the same printed pattern. Additionally, as mentioned above, the squeegee 25 and support block 39 need to be replaced depending on the type of substrate S. Furthermore, the cassette 36 and cleaning component 33 need to be replaced based on consumption and contamination. In the work guidance system 10 of this embodiment, the screen mask M can be automatically replaced by the automated guided vehicle 5. Additionally, the remaining squeegee 25, support block 39, cassette 36, and cleaning component 33 can be manually replaced by the operator. The management device 4 displays work instruction information 73 on the display terminal 6 for the delivery of replacement parts and the recycling of used parts, and instructs the operator accordingly. The operator uses the automated guided vehicle 5 to replace the screen mask M, which is the target of automatic replacement. In addition, for other parts that need to be manually replaced, the operator prepares according to the indicated time, moves the prepared parts to the printing press 11, and performs the replacement. Alternatively, the automated guided vehicle 5 can be used to transport only the parts, and other operators located in front of the printing press 11 can receive the parts from the automated guided vehicle 5 and replace them manually. In this case, the structure can also be configured to accommodate parts other than the screen mask M in the storage device 40, and the parts other than the screen mask M can be transferred between the storage device 40 and the automated guided vehicle 5. In addition, the automated guided vehicle 5 can also be a structure capable of transporting two or more parts. It can also be a structure capable of transporting only one screen mask M or other parts. Therefore, the part replacement method (manual, automatic) and the part transport method (automated guided vehicle 5, human) of this disclosure can be appropriately modified.

[0026] Furthermore, the components that are automatically replaced and those that are manually replaced described above are examples of the same type of component. For example, such as... Figure 3As shown by the dashed arrow 28, the support block 39 can also be configured to be interchangeable between the printing press 11 and the storage device 40, allowing for automatic replacement. In this case, the support block 39 can be moved and replaced in the same manner as the unmanned transport vehicle 5 described later for moving the screen mask M. Furthermore, the work guidance system 10 can be a structure capable of automatically replacing all components to be replaced, or a structure capable of manually replacing all components. Additionally, the components disclosed herein are not limited to the screen mask M, support block 39, scraper 25, etc., as described above. For example, the component to be replaced could also be a solder recovery board for recovering solder paste residue on the screen mask M. Such a solder recovery board also requires changes according to the type of substrate and periodic cleaning, and therefore needs to be replaced.

[0027] A storage device 40 is positioned in front of the printing press 11 to store the screen mask M and to move the screen mask M in and out between itself and the printing press 11 and the automated guided vehicle (AGV) 5. The storage device 40 includes a storage section 42, a mounting section moving section 43, a pair of object moving sections 44, a pair of loading / unloading sections 47, a mounting section 50, and a door section 53. The storage section 42 is formed inside the housing of the storage device 40 and has an interface layer 58 that connects the screen mask M to the printing press 11. It houses multiple (e.g., five) mounting sections 50, each storing the screen mask M. An opening 16 for the screen mask M to pass through is formed on the printing press 11 side of the interface layer 58 in the storage section 42. Additionally, an loading / unloading outlet 17 for the screen mask M to pass through is formed on the AGV 5 side of the interface layer 58 in the storage section 42. Figure 3 As shown, the mounting section moving section 43 has a support section that supports the mounting section 50 at predetermined intervals in the vertical direction (Z-axis direction). The mounting section 50 is moved up and down in the vertical direction by a drive source not shown, replacing the mounting section 50 of the junction layer 58.

[0028] The mounting section 50 is a shelf for mounting the screen mask M, and includes a support roller 51 and a plate 52. The support roller 51 supports the screen mask M from below and rotates according to the movement of the screen mask M. The plate 52 is disposed below the support roller 51 and is removably mounted to the mounting section 50. It is a component for receiving viscous fluid falling from the screen mask M.

[0029] A pair of object moving parts 44 abut against the screen mask M and move in the loading / unloading direction (Y-axis direction, front-back direction). The pair of object moving parts 44... Figure 3 The configuration shown is located on the junction layer 58, as... Figure 4 The mounting portion 50 of the junction layer 58 shown is respectively provided on both sides in the left-right direction (X-axis direction). Each of the pair of object moving portions 44 has the same structure, for example, a structure symmetrical in the left-right direction. Figure 3 as well as Figure 4As shown, each of the pair of object moving parts 44 has multiple transport rollers 46, a belt 45 mounted on the transport rollers 46, a pair of clearance drive parts 56, and a transport drive part 57. The pair of clearance drive parts 56 are, for example, respectively located at both ends of the mounting part 50 in the front-rear direction. The pair of clearance drive parts 56 are connected to the transport rollers 46, and are driven by a drive source (cylinder, etc.) to move the belt 45 and transport rollers 46 in the left-right direction. Each of the pair of clearance drive parts 56 moves the belt 45 and transport rollers 46 to an contact position where the belt 45 abuts against the screen mask M (see reference). Figure 6 ) or the retraction position separated from the screen mask M (refer to Figure 4 ).

[0030] The transport drive unit 57 is a motor that rotates the transport roller 46. When the object moving parts 44 are in the contact position, they rotate the transport roller 46, causing the belt 45 to rotate, thereby moving the screen mask M in the transport-in / transport direction. Additionally, when the mounting unit 50 is raised or lowered, the pair of object moving parts 44 move the belt 45 and the transport roller 46 to a clearance position. Figure 4 , Figure 5 This shows the state in which a pair of object moving parts 44 are positioned in the retracted position. Figure 6 This shows the configuration in the gripping position.

[0031] A pair of infeed / outfeed sections 47 are disposed on the transfer layer 58, respectively located on both sides and at the front end of the mounting section 50 of the transfer layer 58 in the left-right direction. The pair of infeed / outfeed sections 47 move the screen mask M between itself and the automated guided vehicle 5. The pair of infeed / outfeed sections 47 protrude outward from the storage section 42, thereby pulling the screen mask M from the automated guided vehicle 5 into the storage section 42, or sending the screen mask M from the storage section 42 out of the automated guided vehicle 5. Furthermore, the automated guided vehicle 5 may also be equipped with infeed / outfeed sections 47 for sending and pulling in the screen mask M. Additionally, both the storage device 40 and the automated guided vehicle 5 may be equipped with devices for moving the screen mask M. Furthermore, the automated guided vehicle 5 may also directly transfer the screen mask M to the printing press 11. In this case, the printing press 11 may not be equipped with the storage device 40.

[0032] Each of the pair of infeed and outfeed sections 47 has an identical structure, including a holding member 48 and infeed / outfeed rollers 49. Additionally, as... Figure 4 , Figure 5 As shown, a pair of infeed and outfeed parts 47 are configured to rotate, so that the holding member 48 is in the holding position of holding the screen mask M of the unmanned transport vehicle 5 (see reference). Figure 5 ) and the release position after separation from the screen mask M (refer to Figure 4 The feed roller 49 is located at the front end of the holding member 48 and abuts against the screen mask M. It rotates based on the drive of a motor (not shown) to move the screen mask M in the feed direction.

[0033] Door 53 is a baffle unit that restricts the outward movement of the screen mask M. For example... Figure 2 As shown, the door portion 53 is located near both the opening portion 16 and the loading / unloading outlet 17. Additionally, in Figure 2 The diagram omits the door portion 53 located at the loading / unloading outlet 17. The door portion 53 moves the shielding plate 54 vertically via an opening / closing drive unit 55 (motor, etc.). The door portion 53 positions the shielding plate 54 at a restricted position that limits the movement of the screen mask M of the interfacing layer 58 in the loading / unloading direction. Figure 2 The solid line) and the open position of the screen mask M of the junction layer 58 that can move in the loading / unloading direction ( Figure 2 Move between the dotted lines.

[0034] Figures 4 to 6 This illustrates the action of moving the screen mask M into the storage device 40. The automated guided vehicle 5, for example, moves to the height of the junction layer 58 while carrying the screen mask M. Figure 4 As shown, the automated guided vehicle 5 is positioned before the storage device 40. For example, the management device 4 constantly manages the position of the automated guided vehicle 5. There are no particular limitations on the method for detecting the position of the automated guided vehicle 5; it is possible to use a GPS method, a method that uses sensors installed on the production line 2 or the automated guided vehicle 5 for detection, or a method that uses image processing from cameras installed in the production facility for detection, etc.

[0035] If the unmanned transport vehicle 5 is positioned in front of the printing press 11 (receiving device 40) that delivers and retrieves the screen mask M, the control device 4 instructs the receiving device 40 to load and unload the screen mask M. For example, when the screen mask M is loaded, the receiving device 40 opens the shielding plate 54 of the loading / unloading outlet 17. The receiving device 40 then moves the pair of loading / unloading sections 47 from the released position (see reference). Figure 4 Move to the holding position (refer to) Figure 5 The screen mask M on the automated guided vehicle 5 is held by a pair of infeed and outfeed sections 47. The storage device 40 moves the belt 45 and the transport roller 46 to the contact position, and rotates the infeed and outfeed rollers 49 and the transport roller 46, thereby moving the screen mask M from the automated guided vehicle 5 to the placement section 50 of the transfer layer 58 (see reference). Figure 6 The receiving device 40 moves the shielding plate 54 of the loading / unloading outlet 17 to a restricted position, limiting the outward movement of the screen mask M. Furthermore, in the case of discharging the screen mask M, for example by performing a... Figures 4 to 6 An action opposite to the one shown (reverse rotation, etc.) can discharge the screen mask M from the storage device 40 to the unmanned transport vehicle 5.

[0036] Furthermore, the printing press 11 and the storage device 40 are capable of transferring the screen mask M from the storage device 40 to the printing press 11 and discharging the screen mask M from the printing press 11 to the storage device 40. (Detailed description omitted.) For example, the transfer between the storage device 40 and the screen mask M between it and the automated guided vehicle 5 is similarly performed by opening the shielding plate 54 of the opening 16 and rotating the transport roller 46, thereby discharging the screen mask M to the printing press 11. The printing press 11 hooks the mask moving part 27, which is provided on the printing section 22, onto the end of the screen mask M, pulls the printing section 22 backward, and thereby positions the screen mask M into the printing press 11 (mask operation section 26) via the mask moving part 27. Additionally, when discharging the screen mask M from the printing press 11 to the storage device 40, the printing press 11 pushes the used screen mask M to the transfer layer 58 of the storage device 40 via the mask moving part 27. The storage device 40 can pull in the screen mask M by rotating the belt 45 in the opposite direction to the discharge direction. In this way, the printing press 11, storage device 40, and automated guided vehicle 5 of this embodiment can automatically transport and change the screen mask M. Furthermore, as mentioned above, the automatically changing component is not limited to the screen mask M; for example, ... Figure 3 As shown by the dashed arrow 28, the support block 39 can also be replaced automatically between the storage device 40 and the storage device 40.

[0037] (Job Guidance System 10) Figure 7 A block diagram of the job guidance system 10 is shown. (For example...) Figure 7 As shown, the production line management device 3 is, for example, a personal computer equipped with a control unit 61 such as a CPU, a storage device 62, etc. The production line management device 3 manages production in the production line 2 based on the production management plan of the board S managed by the management device 4. The storage device 62 is used to store the production plan data 75, which will be described later.

[0038] The management device 4 is, for example, a server device equipped with a control unit 64 such as a CPU, a storage device 65, etc. The storage device 65 stores a production management program 67, a boot program 68, a production plan DB 69, a task DB 70, and an instruction DB 71. The production management program 67 is a program that manages the production sequence of each production line 2. The boot program 68 is a program that changes the information displayed on the display terminal 6, specifically the work instruction information 73 described later, based on information collected from the production line management device 3 of each production line 2 (lists L1 to L5 described later).

[0039] The storage device 65 stores the data required to generate production plan data 75. Specifically, this includes information about the substrate S and the model numbers of each component. For example, the model number is information about the component (product) required to produce the substrate S for production plan data 75. In the case of substrate S, the model number is information about the model name of substrate S. Additionally, if the component is solder paste, the model number is information about the solder paste's model number (trade name, etc.). The operator operates the management device 4, refers to the data in the storage device 65, and selects the substrate type, solder type, component type, etc., according to the production plan to generate production plan data 75. The management device 4 generates production plan data 75 based on the operator's input and registers it in the production plan DB69. Production plan data 75, for example, indicates to production line 2 which model of component to use, when to start production of substrate S, and how many to produce. Therefore, production plan data 75 stores information indicating production instructions for each device on production line 2, such as printing press 11 and mounting device 13. In the following explanation of production plan data 75, the printing press 11 will be the primary focus.

[0040] Production planning data 75 is managed, for example, using an identification number called a work order number. In production planning data 75, in addition to the model number mentioned above, information such as the task name, the number of blocks to be produced, and the scheduled start time of production are also stored in association with the work order number (see [reference]). Figure 8 The model information includes, in addition to the model information of the components used in its production and the substrate S, such as the solder paste model mentioned above, information such as the model of the squeegee 25 is also provided. The task name is the name of the task data JOB. The task data JOB is the control data that controls each device (printer 11, mounting device 13) of production line 2 during the production of the production plan data 75. In the case of the printing machine 11, the task data JOB is, for example, information such as the starting position of the squeegee 25 corresponding to the size of the substrate S. In the case of the mounting device 13, the task data JOB is information such as the mounting position of the components. For example, multiple task data JOBs corresponding to the type of substrate S are stored in the task DB70. Each device of production line 2 obtains the task data JOB with the task name indicated by the production plan data 75 from the task DB70 before production begins, and uses it for production. The instruction DB71 registers the work instruction information 73 displayed on the display terminal 6. The production start scheduled time is the scheduled time to begin production of the substrate S. Furthermore, in this embodiment, for example, a point in time that does not have a time span but represents any point in time is referred to as "XX moment", and a point that represents a specified time span is referred to as "XX time".

[0041] Display terminal 6 is a personal computer equipped with a CPU (not shown), and includes a monitor 77, an input unit 78, and a storage device 79. The monitor 77 is, for example, an LCD panel. The input unit 78 is, for example, a mouse or keyboard. Display terminal 6 obtains operation instruction information 73 from instruction DB71 and stores it in the storage device 79, and displays it on the monitor 77.

[0042] (Regarding the display of work instruction information 73) Next, use Figure 8 The process of the work guidance system 10 displaying work instruction information 73 on the display terminal 6 will be described. In the following description, the device executing the program will be referred to by device name or program name. For example, "Production management program 67 writes to production plan DB69" means that the control unit 64 executes the writing of production plan DB69 by the management device 4. Furthermore, in the following description, to avoid complicating the accompanying drawings, such as... Figure 8 As shown, the explanation focuses on printing press 11 of one production line 2. However, information can also be collected from printing presses 11 of other production lines 2, and work instruction information 73 can be centrally displayed for each production line 2.

[0043] First of all, Figure 8 In step 1 (hereinafter referred to as S1), the operator of the control unit 4 registers new production plan data 75. The production management program 67 receives the operator's input (S1), generates production plan data 75 based on the received input, and registers the generated production plan data 75 in the production plan DB69 (S3). As described above, the production plan data 75 includes, for example, a work order number, task name, model, predetermined production quantity, and predetermined production start time. Furthermore, the content of the production plan data 75 described above is just one example. For instance, the production plan data 75 may also include information about the production line 2 that specifies the production substrate S, such as the identification information of the specified production line 2.

[0044] Operators, for example, use the control device 4 to check the current production status of each production line 2 and set the scheduled start time for production planning data 75. However, actual production sometimes starts earlier than expected or is delayed due to errors, making it impossible to proceed according to the production plan. As a result, the retrieval or delivery of parts may be advanced, causing the automated guided vehicle 5 to become idle before the printing press 11, or the retrieval or delivery of parts may be delayed, resulting in decreased production efficiency. Therefore, the work guidance system 10 displays work instruction information 73 by taking into account the actual production status of the printing press 11, enabling further optimized retrieval and delivery.

[0045] like Figure 7As shown, the printing press 11 stores two production plan data 75 in the storage device 35, for example. These two production plan data 75 are the production plan data 75 currently in production and the production plan data 75 scheduled for the next production. The printing press 11 obtains the next production plan data 75 (S5) in accordance with the end of production based on the production plan data 75 currently in production. The printing press 11 estimates the changeover adjustment time, a so-called changeover adjustment, based on the planned number of production blocks in the production plan data 75 currently in production, the number of substrates S that have been produced at the current time (i.e., the number of produced blocks) from the planned number of production blocks, and the unit production time required to produce one substrate S. Specifically, the changeover adjustment time can be calculated by the following formula: Changeover adjustment time = (planned number of production blocks - number of produced blocks) * unit production time

[0046] As a unit production time, a preset value (theoretical value, target value, etc.) based on the type of substrate can be used, or a measured value (average value, etc.) actually measured during the production of substrate S can be used. Furthermore, this unit production time is preferably set to include the cleaning time of the cleaning unit 32 in addition to the printing time for printing on substrate S. For example, the cleaning unit 32 is cleaned every four substrates printed by the printing press 11, and the time required for this cleaning operation is set as the cleaning time. In addition, the time required for printing one substrate is set as the printing time. In this case, the unit production time can be converted to the cleaning time per substrate and expressed by the following formula: Unit production time = Printing time + Cleaning time / 4. As a unit production time used for estimating the changeover adjustment time, the printing press 11 can also use a substantial unit production time that takes into account the cleaning time. For example, when the printing press 11 reaches a point (before) the estimated changeover adjustment time, i.e., the end time of production, it requests the next production plan data 75 (S5) from the production line management device 3. The printing press 11 notifies the production line management device 3 of the work order number and the required information of the current production plan data 75.

[0047] If the production line management device 3 receives the request from the printing press 11 in S5, it retrieves the next production plan data 75 from the production plan DB69 based on the work order number (S7) and sends it to the printing press 11 (S9). The method for retrieving the production plan data 75 is not particularly limited. For example, the production line management device 3 may, during the retrieval of the production plan data 75, notify the control device 4 of the work order number received from the printing press 11 and receive an instruction on which work order number's production plan data 75 should be retrieved as the next production plan data 75. Alternatively, the production line management device 3 may, in S7, retrieve the earliest production plan data 75 from the production plan data 75 registered in the production plan DB69, based on the scheduled production start time. Furthermore, the production line management device 3 may prioritize retrieving the production plan data 75 that includes the identification number of the production line 2 managed by this device. Additionally, the estimation of the changeover adjustment time may be performed by devices other than the printing press 11 (production line management device 3, control device 4). For example, the production line management device 3 can obtain the number of blocks produced from the printing press 11 to estimate the changeover adjustment time. When it becomes the time when the changeover adjustment time has been back by a specified time, it obtains the next production plan data 75 and sends it to the printing press 11.

[0048] On the other hand, the printing press 11 appropriately generates five lists required for generating the work instruction information 73 and notifies the guide program 68 (control unit 4) via the production line management device 3 (S11, S12). The control unit 4 generates the work instruction information 73 based on these lists (S15) and registers the generated work instruction information 73 in the instruction DB71 (S17). The five lists are, for example, the planned preparation list L1, the manual changeover adjustment request list L2, the planned component request list L3, the planned recycling request list L4, and the emergency component request list L5. In addition, when these lists are described in a concentrated manner, they are recorded as lists L1 to L5. Alternatively, the generation process of lists L1 to L5 can be performed by a device other than the printing press 11 (production line management device 3, control unit 4). Alternatively, the printing press 11 can send lists L1 to L5 directly to the control unit 4 (guide program 68) without going through the production line management device 3.

[0049] The planned preparation list L1 is a list of automatically replaceable components required for changeover adjustments, which in this embodiment is the screen mask M. The manual changeover adjustment request list L2 is a list of manually replaceable components required for changeover adjustments, which in this embodiment is a list of components other than the screen mask M. As described above, the printing press 11 estimates the changeover adjustment time by multiplying the difference between the planned production number and the number of produced blocks by the unit production time. If the estimated changeover adjustment time is a point (before) a predetermined time, the printing press 11 obtains the task data JOB for the next production plan data 75. This predetermined time is the same as the planned component request list L3 described later, and preferably sets the preparation time T4 and the movement time T5 (refer to...) Figure 10 The time obtained by adding the two is a time greater than or equal to the time obtained by adding the two parts. That is, as described later, preferably, the time for generating / sending the planned preparation list L1 and the manual changeover adjustment request list L2 before the changeover adjustment time is set so that the parts are delivered before the changeover adjustment time. The printing press 11 obtains the task data JOB based on the task name set in the production plan data 75. In addition, the timing of obtaining the task data JOB is not limited to the time specified before the changeover adjustment time. For example, the printing press 11 may obtain the task data JOB with the task name set in the obtained production plan data 75 (the next production plan data 75) at the time when the next production plan data 75 is obtained. In this case, the printing press 11 may also generate the planned preparation list L1 and the manual changeover adjustment request list L2 (described later) and send them to the boot program 68 at the time when the next production plan data 75 is obtained and the time when production of the previous production plan data 75 (the next production plan data 75) begins.

[0050] Printing press 11 accesses task DB70 of management device 4, for example, to obtain task data JOB that matches the task name set in the next production plan data 75. The task data JOB specifies the names (models, etc.) of components used when producing substrate S using this task data JOB. Specifically, these are the names of the screen mask M, support block 39, solder paste, squeegee 25, etc. Printing press 11 detects components whose names in the task data JOB used in the next production run are different from the names of components set in the task data JOB of the substrate S currently being produced; these are newly needed components during changeover adjustments (an example of a component subject to this disclosure). If the newly needed component detected is screen mask M, printing press 11 writes the name of screen mask M and the changeover adjustment time into the planning preparation list L1 and sends it to the boot program 68 via production line management device 3 (S11, S12). Furthermore, if the detected newly required component is a component other than the screen mask M, the printing press 11 writes the name of the component (squeegee 25, etc.) and the changeover adjustment time into the manual changeover adjustment request list L2, and sends it to the boot program 68 via the production line management device 3 (S11, S12). Alternatively, the printing press 11 uses task data (JOB) to detect newly required components, but is not limited to this. For example, the printing press 11 can also use production plan data (75) to detect newly required components. The printing press 11 can also detect components whose names, as set in the production plan data (75) for the next production run, differ from the names of components set in the production plan data (75) for the substrate S in the current production run, as newly required components for changeover adjustments.

[0051] The boot program 68 generates job instruction information 73 (S15) based on the planned preparation list L1 and the manual changeover adjustment request list L2 received from the printing press 11, and registers the generated job instruction information 73 in the instruction DB71 (S17). The display terminal 6 accesses the instruction DB71 periodically, for example. When the printing press 11 detects access from the display terminal 6, it obtains the job instruction information 73 (S19) and enables the monitor 77 (refer to...) Figure 7 (S21) Displays a list of work instruction information 73.

[0052] Figure 9 This shows an example of a overview of the work instruction information 73 displayed on monitor 77. For example... Figure 9As shown, the job instruction information 73 includes information such as job name, job start target time T3, work order number, component type, component model, destination, and departure target time T2. The guiding program 68, for example, arranges each piece of information in the job instruction information 73 in one row, vertically arranging multiple job instruction information 73s and displaying them in a comprehensive view on the display terminal 6. The job name indicates the type of job in the job instruction information 73. In this embodiment, the job names are set as automatic delivery, manual delivery, automatic retrieval, and manual retrieval. Automatic delivery refers to the job of delivering the component (hereinafter referred to as the object component) of the object shown in the job instruction information 73 via an unmanned transport vehicle 5. In this embodiment, the delivery of the screen mask M is automatic delivery. Manual delivery refers to the job where the operator carries the object component from the storage room 8 to the printing press 11. In this embodiment, the scraper 25, box 36, cleaning component 33, and support block 39 are manually delivered. Automatic retrieval refers to the operation where an automated guided vehicle (AGV) 5 retrieves the screen mask M from the printing press 11 to the storage tank 8. Manual retrieval refers to the operation where an operator manually retrieves all parts other than the screen mask M from the printing press 11 to the storage tank 8. Furthermore, the above-mentioned types of operation names are just one example. For instance, as operation names, only delivery and retrieval may be set, without distinguishing between automatic and manual.

[0053] Figure 10 The relationship between each time point is shown. The boot program 68 obtains / sets the device requirement time T1 based on the received lists L1~L5. The device requirement time T1 is the delivery time when a new object component needs to be delivered to the printing press 11, or the recycling time when a used object component needs to be recycled. For example, the boot program 68 sets the changeover adjustment time T6 (an example of the delivery time in this disclosure) set in the planned preparation list L1 and the manual changeover adjustment request list L2 received from the printing press 11 as the device requirement time T1.

[0054] If it is a planned preparation list L1, the automated guided vehicle 5 will deliver automatically; if it is a manual changeover adjustment request list L2, the operator will deliver manually. Therefore, the guidance program 68 sets the required movement time T5 for the transported component based on the planned preparation list L1 or the manual changeover adjustment request list L2. In the case of the planned preparation list L1, the guidance program 68 sets the time required for the automated guided vehicle 5 to move from the storage room 8 to the target printing press 11 as the movement time T5. There is no particular limitation on the method of setting the movement time T5. For example, the storage device 65 may contain a set of movement time T5 required for the automated guided vehicle 5 to move from the storage room 8 to the printing press 11 of each production line 2. In addition, the printing press 11 has its information set in the planned preparation list L1. Furthermore, the guidance program 68 can also detect the printing press 11 that has been delivered to the destination based on the information of the device set in the planned preparation list L1, and retrieve and set the movement time T5 that matches the detected printing press 11 from the storage device 65. Similarly, in the case of the manual changeover adjustment request list L2, the guide program 68 sets the time required for the operator to move from the storage room 8 to the target printing press 11 as the movement time T5. The guide program 68 sets the time from the device requirement time T1 (changeover adjustment time T6) back to the movement time T5 as the departure target time T2 for the work instruction information 73. That is, the guide program 68 sets the departure time from the storage room 8 as the departure target time T2 in a way that allows the operator to meet the changeover adjustment time T6. Figure 9 As shown, the display terminal 6 displays the departure target time T2 in association with each operation instruction information 73.

[0055] Additionally, the guidance program 68 sets the start target time T3 of the operation instruction information 73 back from the departure target time T2 by the preparation time T4. This preparation time T4 is the time required for the operator to prepare the target component. For example, if the target component is a screen mask M, the preparation time T4 is the time required for the operator to locate the shelf in the storage unit 8, take the screen mask M out, and place it on the automated guided vehicle 5. If the target component is a scraper 25, a cleaning component 33, or a support block 39, the preparation time T4 is the time required for the operator to locate the shelf in the storage unit 8 and retrieve the target component. If the target component is solder paste, the preparation time T4 is the time required to retrieve the solder paste stored in the cold storage and restore it to room temperature, plus the time required for stirring. For example, a standard, ideal operation time can be preset as the preparation time T4. Alternatively, the preparation time T4 can also be a measured value actually obtained by the operator in the operation environment. Figure 9 As shown, the display terminal 6 displays the target start time T3 of the operation in association with each operation instruction information 73.

[0056] In addition, such as Figure 9As shown, the component type in the work instruction information 73 indicates the type of the target component (mask, support, etc.). The component model indicates the model of the target component. The guide program 68 can, for example, set the component type and model information in the work instruction information 73 based on the component names set in the planned preparation list L1 and the manual changeover adjustment request list L2. Additionally, the destination is the identification information of the production line 2 to which the product is delivered or returned. The guide program 68 can, for example, set this destination information based on the information of the sending source, such as the planned preparation list L1.

[0057] Additionally, the planned component requirement list L3 is a list of components that require periodic replacement due to consumption, etc. Among the components used in the printing press 11, there are components that need to be replaced every time a threshold number of substrates S have been printed. For example, the screen mask M gradually accumulates solder paste during repeated printing, thus requiring periodic cleaning. For example, if the screen mask M is set to print 1000 substrates S, then cleaning is required. In this case, after replacing the screen mask M, the planned replacement time T7 can be expressed using the current time and unit production time by the following formula. The 1000 substrates is an example of the threshold number of substrates disclosed herein. Planned replacement time T7 = Current time + 1000 * unit production time

[0058] Similarly, when the specified threshold number of solder paste blocks is printed, the remaining capacity of cartridge 36 is exhausted. The capacity of the unused solder paste in cartridge 36 is taken as the initial capacity. Additionally, the amount of solder paste consumed in one print is taken as the expected consumption. In this case, after replacing cartridge 36, the planned replacement time T7 can be expressed using the current time and unit production time as follows: Planned replacement time T7 = Current time + (Initial capacity / Expected consumption) * Unit production time. The initial capacity can be preset according to the size of cartridge 36. The expected consumption can be preset based on simulation results or measured values. In this case, the value of (Initial capacity / Expected consumption) is an example of the threshold number of blocks disclosed herein.

[0059] Similarly, for example, the cleaning component 33 is used in the cleaning process for each predetermined number of printed blocks. If a predetermined threshold number of blocks is printed, it needs to be replaced with a new one. Therefore, similar to the screen mask M, the threshold number of blocks to be replaced is multiplied by the unit production time, and the result of the multiplication is added to the current time, thereby calculating the planned replacement time T7. When the printing press 11 reaches a time that is a predetermined time back from the planned replacement time T7 calculated above, it generates and sends a planned component request list L3. This predetermined time is preferably set to a time greater than or equal to the time after adding the preparation time T4 and the movement time T5 of the target component. That is, preferably, the planned component request list L3 is generated / sent before the predetermined time so that the target component is delivered before the planned replacement time T7 of the target component. The printing press 11 sets the planned replacement time T7 and the name of the target component to be replaced in the planned component request list L3 and sends it to the boot program 68. In addition, the timing of sending the planned component request list L3 is not limited to a predetermined time back from the planned replacement time T7. For example, printing press 11 can also calculate the planned replacement time T7 immediately after the object part is replaced, generate a planned part requirement list L3 and send it.

[0060] Similar to the planned preparation list L1, the guide program 68 sets the planned replacement time T7 of the planned component requirement list L3 as the device requirement time T1, and sets the departure target time T2 and the work start target time T3 to generate work instruction information 73 (see reference). Figure 10 Therefore, as Figure 9 As shown, an arrangement is made to deliver solder paste and screen mask M.

[0061] The planned recycling request list L4 is a list of parts that need to be recycled in conjunction with a changeover adjustment. For example, when the printing press 11 reaches a point where a predetermined time has elapsed since the changeover adjustment time T6, it obtains the task data JOB for the next production plan data 75. As will be described later, if only recycling is performed, the preparation time T4 is unsuitable; therefore, this predetermined time is preferably a time longer than the move time T5. That is, in order to recycle the target parts before the changeover adjustment time T6, it is preferable to generate / send the planned recycling request list L4 before the predetermined time. The printing press 11 detects parts whose names are different from those set in the task data JOB of the substrate S in the current production process compared to the names set in the task data JOB used in the next production process; these are the parts that need to be recycled during the changeover adjustment (an example of the target parts of this disclosure). The printing press 11 sets the detected part names and the changeover adjustment time T6 in the planned recycling request list L4 and sends it to the boot program 68 via the production line management device 3 (S11, S12). The guiding procedure 68 sets the production changeover adjustment time T6 of the planned recycling requirement list L4 to the equipment requirement time T1, and generates operation instruction information 73 with the departure target time T2 set.

[0062] In addition, similar to the planned preparation list L1 and the manual changeover adjustment requirement list L2, the guide program 68 will, for screen masks M that can be automatically recycled and object parts that must be manually recycled (other than screen masks M), Figure 9 The job name is changed to automatic or manual recycling. For example, the guide program 68 can also determine automatic or manual recycling based on the name of the object part in the planned recycling requirement list L4 and generate job instruction information 73. Thus, the guide program 68 can set automatic or manual recycling as the job name for the job instruction information 73 based on the information in the planned recycling requirement list L4, and can clearly display whether the object part can be recycled by the automated guided vehicle 5 or the object part must be recycled manually by the operator. Alternatively, the printing press 11 can also set information indicating whether it is manual or automatic recycling in the planned recycling requirement list L4. In addition, the printing press 11 can also generate the planned recycling requirement list L4 into two lists, an automatic recycling planned recycling requirement list L4 and a manual recycling planned recycling requirement list L4, similar to the planned preparation list L1 and the manual changeover adjustment requirement list L2.

[0063] Furthermore, when only the object component is recycled, the preparation time T4 in the storage container 8 is no longer needed. For example, if support block 39 was used in a previous production run, but support pins are used in the next production run, support block 39 needs to be manually recycled. Alternatively, if the next production run can be performed using the screen mask M stored in the storage device 40, only the automatic recycling of the screen mask M occurs. In this case, the boot program 68, as... Figure 9 As shown in the third work instruction information 73 from the top, the work start target time T3 is not set, but only the departure target time T2 is set. This departure target time T2 is the time of movement time T5 retroactively from the changeover adjustment time T6 in the planned recycling request list L4. In addition, when only the unmanned transport vehicle 5 is used for recycling, it is not necessary to set the storage warehouse 8 as the departure point, and the unmanned transport vehicle 5 can be sent to the recycling from any location in the production facility (floor). Therefore, the guidance program 68 can set the time required to move the unmanned transport vehicle 5 to the printing press 11 at the recycling destination as the movement time T5, for example, in the case where there is an unmanned transport vehicle 5 moving towards the storage warehouse 8 without any load, or an unmanned transport vehicle 5 stopped and waiting in the production facility. In this case, the movement time T5 and the departure target time T2 can also be updated in conjunction with the movement of the unmanned transport vehicle 5. In addition, when it is possible to perform automatic delivery and automatic recycling or manual delivery and manual recycling in one round trip, the guidance program 68 can also generate a work instruction information 73 for delivery and recycling and display it. For example, the job name can be set to "Automatic Delivery / Collection" to display a job instruction message 73 across two lines.

[0064] The sudden component request list L5 is used when a component needs to be replaced earlier than expected. As described above, the printing press 11 estimates the planned replacement time T7 of the cartridge 36 based on the initial capacity of the solder paste, the expected consumption, and the unit production time, and generates the planned component request list L3. However, the solder paste may be consumed earlier than expected due to factors such as temperature, humidity, and the shape of the scraper 25. As described above, the printing press 11 is equipped with a balance detection sensor 36A that detects the remaining amount of solder paste in the cartridge 36. For example, if the remaining amount of solder paste detected by the balance detection sensor 36A reaches or falls below a predetermined threshold, the printing press 11 sets the name of the solder paste in the sudden component request list L5. In addition, the printing press 11 designates the delivery time of the solder paste to be delivered as the sudden time T8 (see reference). Figure 10 The generated sudden component requirement list L5 is set in the print press 11 and sent to the bootloader 68.

[0065] As the threshold quantity specified above, it is preferable to set a quantity in which the remaining amount is not zero before the new cartridge 36 is delivered. Specifically, for example, if the remaining time is defined as the time from the point when the remaining amount becomes the threshold quantity until printing continues until the remaining amount becomes zero, it is preferable that this remaining time is a threshold quantity greater than or equal to the total time of preparation time T4 and moving time T5. In addition, the target components requested in the sudden component request list L5 are not limited to solder paste. For example, if the cleaning component 33 is a component (cleaning fluid, etc.) consumed every specified time, the remaining amount of the cleaning component 33 can be detected by sensors or the like, and a request can be made through the sudden component request list L5 no earlier than expected.

[0066] The bootloader 68 sets the sudden time T8 of the received sudden component request list L5 as the device request time T1, and sets the preparation time T4 and the movement time T5 to generate work instruction information 73. Thus, even if the consumption of the target component is higher than expected, it can be delivered before it is completely depleted. The bootloader 68 performs the generation and display of work instruction information 73 based on the aforementioned lists L1 to L5 for multiple production lines 2, and displays it on the display terminal 6. Figure 9 As shown, the work instruction information 73 for each production line 2 is displayed in a summary.

[0067] As described above, the guidance program 68 sets the time T4 required for the operator to prepare the target component back from the departure target time T2 to the operator's work start target time T3. The guidance program 68 displays the work start target time T3 in association with the work instruction information 73. Additionally, as... Figure 9 As shown, the guide program 68 instructs the display terminal 6 to arrange and display multiple job instruction messages 73 in ascending order of job start target time T3. This allows for the sequential display of job instruction messages 73 that must begin preparation earlier, i.e., job instruction messages 73 with higher priority.

[0068] Additionally, the guidance procedure 68 arranges and displays multiple job instruction messages 73 in ascending order according to their departure target time T2. For example... Figure 9As shown, the guidance program 68 displays the tasks in ascending order of the target start time T3 and the target departure time T2. For example, the guidance program 68 sets the ascending order of the target start time T3 as the first priority, and then displays the task instructions 73 with the same target start time T3 in ascending order of the target departure time T2. Thus, it can display the task instructions 73 that must depart earlier, i.e., those with higher departure priority, sequentially. Furthermore, the guidance program 68 can also display the task instructions 73 in ascending order of the target departure time T2 without displaying the target start time T3. However, the display order is not limited to the ascending order described above. The guidance program 68 can also display them in descending order of the target start time T3 and the target departure time T2. Alternatively, the guidance program 68 may not display them in ascending or descending order, but rather sequentially from the task instructions 73 whose generation time is earlier.

[0069] Additionally, bootloader 68 receives Figure 9 When selecting from multiple work instruction messages 73 displayed on the screen, the selected work instruction message 73 is displayed in a manner that allows it to be recognized differently from other work instruction messages 73. For example, the display terminal 6 can obtain the selected work instruction message 73 from the input section 78 via the input section 78. Figure 9 The display terminal 6 receives a selection of a job instruction 73 that has begun preparation from the list of job instruction information 73 shown. For example, when the target start time T3 of any job instruction 73 is selected via the mouse or keyboard on the input unit 78, the display terminal 6 notifies the boot program 68 which job instruction 73 has been selected. The boot program 68 stores the status of the received job instruction 73 that has begun preparation in the instruction DB 71. The boot program 68 then notifies the display terminal 6 of an instruction to change the display of the selected job instruction 73. Figure 9 The status of job instruction information 73, indicating that the bottommost solder paste has been selected, is displayed. For example, as shown... Figure 9 As shown, when the display terminal 6 receives the display change instruction from the bootstrap program 68, it changes the color of the target start time T3 of the selected job instruction information 73 to red or yellow, so that it can be displayed in a way that is distinguishable from other job instruction information 73. Therefore, when multiple operators are preparing an object component, the difference in color at a glance can indicate which object component preparation other operators have started. This prevents the dual preparation of object components.

[0070] Furthermore, the display terminal 6 can also perform display changes without notifying the bootloader 68. Additionally, the bootloader 68 and the display terminal 6 can also receive the selection of the start-up preparation work instruction information 73 without receiving it through the input unit 78. For example, the display terminal 6 can also receive the selection of the work instruction information 73 based on a task that verifies whether the prepared object component is the correct component. Figure 1 As shown, the display terminal 6 includes, for example, a barcode reader 6A. The job guidance system 10 manages each object component using barcodes. The display terminal 6 can also determine that the preparation of job instruction information 73, matching the type of the object component, is complete when the barcode reader 6A reads the barcode of an object component (scraper 25, etc.) prepared by the operator in the storage room 8, and change the color of the matching job instruction information 73. Thus, it is possible to simultaneously receive whether the prepared object component is correct and whether the preparation of the object component is complete. Alternatively, the guidance program 68 may not perform the aforementioned selection and display change of job instruction information 73.

[0071] Furthermore, the guidance procedure 68 sets the departure target time T2 to the time required for the automated guided vehicle 5 to move from its starting point (warehouse 8, etc.) to the printing press 11, back from the device request time T1. Thus, it is possible to guide the vehicle to the departure target time T2, which is earlier than the required movement time T5. This allows the automated guided vehicle 5 to arrive at the printing press 11 more reliably before the device request time T1. Alternatively, the guidance procedure 68 can use the time required for a person to transport the object component instead of the time the automated guided vehicle 5 moves within the production facility, as the movement time T5 of the automated guided vehicle 5.

[0072] Furthermore, the printing press 11 estimates the changeover adjustment time T6 based on the number of blocks already produced, the planned number of blocks to be produced, and the unit production time, and notifies the boot program 68 using list L1, etc. The boot program 68 sets the changeover adjustment time T6 obtained from list L1 as the equipment requirement time T1. Thus, it is possible to set the equipment requirement time T1 and the departure target time T2 that conform to the actual production progress of the printing press 11. Alternatively, the boot program 68 can also perform the estimation of the equipment requirement time T1.

[0073] Furthermore, the guide program 68 sets the parts required after the production changeover adjustment (parts in the planned preparation list L1 and the manual production changeover adjustment request list L2) as the parts to be delivered, and sets the parts no longer needed after the production changeover adjustment (parts in the planned recycling request list L4) as the parts to be recycled. This allows for the detection of parts changed according to the production changeover adjustment and the appropriate setting of the parts to be delivered and recycled.

[0074] Furthermore, when a component requiring manual replacement during a production changeover is designated as an object component, the guide program 68 displays the work instruction information 73 for that object component, indicating that manual replacement is required. For example... Figure 9 As shown, the job guidance system 10 displays the text "Manual Delivery" as the job name. This allows the operator to easily identify job instructions 73 that require manual replacement and those that require automatic replacement. It also allows them to consider preparations for subsequent jobs, such as whether they need to move to the printing press 11 to perform the job. Alternatively, the guidance program 68 may not be displayed. Figure 9 The assignment name.

[0075] Furthermore, during the generation of the planned component requirement list L3, the printing press 11 calculates the time obtained by multiplying the predetermined threshold number of blocks (the number of blocks requiring cleaning, the number of blocks based on solder paste consumption) by the unit production time, and sets the current time to the calculated time as the planned replacement time T7. The boot program 68 sets the planned replacement time T7 obtained from the planned component requirement list L3 as the device requirement time T1. Thus, for the screen mask M that needs cleaning every threshold number of printed blocks and the solder paste that has run out of stock, the replacement period can be predicted and the operator can be notified to prepare.

[0076] (Regarding the delivery and recycling of object components) Bootloader 68 Figure 9 The overview of the work instruction information 73 shows the start of the delivery and retrieval of the receiving object parts. For example... Figure 9 As shown, the display terminal 6 displays a start button 81 to the right of each of the multiple job instruction messages 73. When the operator has prepared and placed the automatically delivered object (screen mask M) on the automated guided vehicle 5, they use the input unit 78 (mouse, etc.) to select the start button 81 to the right of the set job instruction message 73. The display terminal 6 notifies the guidance program 68 of the job instruction message 73 for which the start button 81 has been selected. The guidance program 68 then causes the automated guided vehicle 5 to depart from the storage room 8 towards the printing press 11 corresponding to the received job instruction message 73. The guidance program 68 then deletes the job instruction message 73 for which the start button 81 has been selected from the instruction DB 71. Furthermore, the guidance program 68 notifies the display terminal 6 of an instruction to remove the display of the job instruction message 73. Thus, the delivery of one job instruction message 73 is completed.

[0077] Therefore, when the display terminal 6 receives a selection from multiple work instruction messages 73 indicating that the preparation of the object component to be delivered has been completed by the operator, the guide program 68 causes the unmanned transport vehicle 5 to depart from the storage room 8 toward the printing press 11. Thus, the unmanned transport vehicle 5 can depart based on the completion of preparation, enabling automatic replacement at the appropriate time.

[0078] Similarly, when the operator has prepared the manually delivered object to a state where it can be retrieved, they select the start button 81 to the right of the prepared work instruction information 73. The guidance program 68 does not perform remote operation of the automated guided vehicle 5, but similarly to the automatic delivery case, it performs the deletion of the selected work instruction information 73 and the process of not displaying it. Therefore, even in the case of manual delivery, the deletion of work instruction information 73 can be performed based on the completion of the operator's preparation.

[0079] Furthermore, when the start button 81 for the job instruction information 73 with the job name "Automatic Recycling" is selected, the guide program 68, in the same manner as automatic delivery, directs the automated guided vehicle 5 toward the recycling of the no longer needed screen mask M. In this case, as described above, when only recycling is performed by the automated guided vehicle 5, it is not necessary to set the storage warehouse 8 as the departure point; the automated guided vehicle 5 can depart from any location within the production facility (floor). Additionally, at the time when the operator is ready to perform recycling for the job instruction information 73 with the job name "Manual Recycling," the start button 81 for the manual recycling job instruction information 73 can be selected to clear the job instruction information 73 and begin recycling.

[0080] In this embodiment, the unmanned transport vehicle 5 is an example of the transport device disclosed herein. The storage room 8 or the location of the unmanned transport vehicle 5 when indicating recycling is an example of the departure point. The management device 4 is an example of the operation guidance device. In addition, the scraper 25, cleaning component 33, box 36, support block 39, and wire mesh mask M are examples of components and object components. The remaining quantity detection sensor 36A is an example of the detection device. The guidance program 68 is an example of the request time acquisition unit, setting unit, and display indication unit. The production changeover adjustment time T6, planned changeover time T7, and emergency time T8 of the planned preparation list L1 and the manual production changeover adjustment request list L2 are examples of delivery times. The production changeover adjustment time T6 of the planned recycling request list L4 is an example of the recycling time.

[0081] Based on the above embodiments, the following effects are achieved. In one embodiment, the guide program 68 obtains the delivery time of new parts that need to be delivered to the printing press 11 (such as the changeover adjustment time T6 in the planned preparation list L1), and the recycling time of used parts that need to be recycled (such as the changeover adjustment time T6 in the planned recycling request list L4) (S12). The guide program 68 sets a departure target time T2 that needs to be dispatched from the departure point (warehouse 8, etc.) to the printing press 11 in a way that meets the obtained device request time T1 (S15). In addition, the guide program 68 sets information on the target parts that need to be delivered (recycled) at the device request time T1 corresponding to the departure target time T2. Figure 9The job name, work order number, component type, component model, and destination are specified. The guidance program 68 establishes associated job instruction information 73 based on the set departure target time T2 and the information of the target component, so that multiple job instruction information 73 are displayed in a single view on the display terminal 6 (S19, S21).

[0082] Here, even if the operators in storage warehouse 8 prepare according to the production plan of the control unit 4, the actual production operation may start earlier than expected, or be delayed due to errors, and sometimes it may not proceed according to the production plan. In this case, if the delivery of replacement parts is delayed, there is a problem of production stoppage. In addition, if the parts are delivered too early, there is a problem of parts remaining on site. In contrast, the guidance program 68 obtains lists L1 to L5 from the printing press 11, sets the departure target time T2 and the work start target time T3, and displays them as a list of work instruction information 73. As a result, the operators can carry out preparations that match the actual production progress of the printing press 11. The delivery and retrieval of target parts can be further optimized.

[0083] Furthermore, this disclosure is not limited to the above-described embodiments, and various improvements and modifications can be made without departing from the spirit of this disclosure. For example, in the above embodiment, the bootloader 68 uses the job instruction information 73 to perform the delivery and retrieval of the object component, but it may also perform only either delivery or retrieval. Therefore, the bootloader 68 may also use at least one of the five lists L1 to L5 to generate and display the job instruction information 73. In the above embodiment, the printing press 11 generates lists L1 to L5, but other devices, such as the production line management device 3, the overall management device 4, and the display terminal 6, can also obtain the required information (number of blocks produced, etc.) from the printing press 11 to generate lists L1 to L5. In addition, the boot program 68 generates job instruction information 73, but it can also be generated by any of other devices such as the production line management device 3, the printing press 11, or the display terminal 6 in the same way as the boot program 68. In addition, the display terminal 6 displays the work instruction information 73, but it can also be displayed on other devices, production line management device 3, overall management device 4, and printing machine 11.

[0084] in addition, Figure 9The overview of the work instruction information 73 shown is one example. For example, there could also be a start button 81. The guide program 68 and the display terminal 6 can also, when the start button 81 is selected for any of the multiple work instruction information 73 with a selected start target time T2, perform the start of the unmanned transport vehicle 5 and delete the work instruction information 73 for that selected work instruction information 73. Furthermore, for example, the guide program 68 can also display work instruction information 73 with a start target time T2 and a work start target time T3 that are earlier than the current time, differently from other work instruction information 73. That is, it can also emphasize the display of work instruction information 73 that is delayed beyond a predetermined time.

[0085] Furthermore, this disclosure is not limited to the dependent relationships described in the claims. For example, this specification also discloses the technical idea of ​​changing "the work guidance device according to claim 1 or 2" to "the work guidance device according to any one of claims 1 to 4" in claim 5. Additionally, for example, this specification also discloses the technical idea of ​​changing "the work guidance device according to claim 1 or 2" to "the work guidance device according to any one of claims 1 to 5" in claim 6. Additionally, for example, this specification also discloses the technical idea of ​​changing "the work guidance device according to claim 1 or 2" to "the work guidance device according to any one of claims 1 to 7" in claim 8. Additionally, for example, this specification also discloses the technical idea of ​​changing "the work guidance device according to claim 1 or 2" to "the work guidance device according to any one of claims 1 to 9" in claim 10. Additionally, for example, this specification also discloses the technical idea of ​​changing "the work guidance device according to claim 1 or 2" to "the work guidance device according to any one of claims 1 to 10" in claim 11. Explanation of reference numerals in the attached figures

[0086] 10. Work Guidance System, 2. Production Line, 3. Production Line Management Device, 4. Overall Management Device, 5. Automated Guided Vehicle (Transportation Device), 8. Storage Warehouse (Department), 11. Printing Machine (Screen Printing Machine), 25. Scraper (Component, Target Component), 33. Cleaning Component (Component, Target Component), 36. Box (Component, Target Component), 36A. Balance Detection Sensor (Detection Device), 39. Support Block (Component, Target Component), 68. Guidance Program (Required Time Acquisition Unit, Setting Unit, Display Indication Unit), 73. Work Indication Information, M. Screen Mask (Component, Target Component), T1. Device Required Time, T2. Departure Target Time, T3. Work Start Target Time, T4. Preparation Time, T6. Changeover Adjustment Time (Delivery Time, Recovery Time), T7. Planned Changeover Time (Delivery Time), T8. Emergency Time (Delivery Time).

Claims

1. A work guidance device, comprising: The requirement time acquisition unit, for components used in a screen printing machine, acquires the required time of the device, the required time of the device including at least one of the delivery time when a new component needs to be delivered to the screen printing machine and the recycling time when a component already used in the screen printing machine needs to be recycled; The setting unit, in a manner that keeps pace with the device's required time obtained by the required time acquisition unit, sets information about the component (i.e., the target component) that needs to depart from its origin towards the screen printing machine and whether it needs to perform automatic or manual operation at the device's required time corresponding to the departure target time, based on the type of component; and The display instruction unit establishes associated work instruction information with the departure target time set by the setting unit and the information of the target component, and displays multiple work instruction information at a glance.

2. The work guidance device according to claim 1, wherein, The device requires a timeframe including the delivery time. The setting unit will set the time required for the operator to prepare the object component, which is calculated by rewinding the departure target time, as the operator's operation start target time. In addition to the departure target time and the information of the object component, the display indicator also displays the operation start target time in association with the operation instruction information, and arranges multiple operation instruction information in ascending order according to the operation start target time and displays them in a list.

3. The work guidance device according to claim 2, wherein, When the display instruction unit receives a selection of a work instruction message from among a plurality of work instruction messages, indicating that the operator is beginning preparation of the object component, the selected work instruction message is displayed in a manner that allows it to be identified in a way that distinguishes it from the other work instruction messages.

4. The work guidance device according to claim 1, wherein, The device requires that the delivery time and the retrieval time be specified. The display indicator unit arranges and displays multiple job instruction messages in ascending order according to the departure target time.

5. The work guidance device according to claim 1 or 2, wherein, The object component is transported by a conveying device that moves within the production facility where the screen printing machine is located. The setting unit will set the departure target time as the time when the travel time required for the transport device to move from the departure point to the screen printing machine is backdated from the device request time.

6. The work guidance device according to claim 1 or 2, wherein, The required time acquisition unit sets the changeover adjustment time for a substrate being produced in the screen printing machine, which is the time when the type of substrate to be produced is changed after the substrate production is completed, as the required time of the device. The changeover adjustment time is estimated based on the number of substrates already produced, the planned number of substrates to be produced, and the unit production time required to produce one substrate. The number of substrates already produced is the number of substrates that have been completed in the screen printing machine, and the planned number of substrates to be produced is the total number of substrates that are planned to be produced in the screen printing machine.

7. The work guidance device according to claim 6, wherein, The device requires that the delivery time and the retrieval time be specified. The setting unit sets the components required after production changeover adjustments in the screen printing machine as the target components to be delivered, and sets the components no longer needed after production changeover adjustments as the target components to be recycled.

8. The work guidance device according to claim 1 or 2, wherein, The device requires a timeframe including the delivery time. The object component is transported by a conveying device that moves within the production facility where the screen printing machine is located. When the display indication unit receives a selection of a work instruction message from among a plurality of work instruction messages indicating that preparation of the object component to be delivered has been completed, it causes the transport device to depart from the departure point toward the screen printing machine.

9. The work guidance device according to claim 6, wherein, The object component includes the component that needs to be manually replaced. When the setting unit sets the component that needs to be manually replaced during production changeover in the screen printing machine as the target component, the display indicator unit displays the operation instruction information for the set target component, indicating that manual replacement is required.

10. The work guidance device according to claim 1 or 2, wherein, The object component includes the component that needs to be replaced each time a threshold number of substrates are produced in the screen printing machine. The required time acquisition unit calculates the time obtained by multiplying the number of threshold blocks by the unit production time required to produce one substrate in the screen printing machine, and sets the current time and the calculated time as the required time of the device.

11. The work guidance device according to claim 1 or 2, wherein, The device requires a timeframe including the delivery time. The screen printing machine is equipped with a detection device for detecting the remaining quantity of the object component. If the remaining amount of the object component detected by the detection device is below a predetermined threshold, the time requirement acquisition unit sets the delivery time at which a new object component needs to be delivered to the screen printing machine as the device requirement time.

12. A job guidance system, comprising: Screen printing machine; A production line management device for managing the production line equipped with the screen printing machine; and A unified management device is connected to each of the multiple production line management devices, and manages the production sequence in the production lines managed by each of the multiple production line management devices. The job guidance system has the following features: The device requests a time for obtaining the time required for the components used in the screen printing machine. The time required by the device includes at least one of the following: the time when a new component needs to be delivered to the screen printing machine and the time when a component already used in the screen printing machine needs to be recycled. The setting unit, in a manner that keeps pace with the device's required time obtained by the required time acquisition unit, sets information about the component (i.e., the target component) that needs to depart from its origin towards the screen printing machine and whether it needs to perform automatic or manual operation at the device's required time corresponding to the departure target time, based on the type of component; and The display instruction unit establishes associated work instruction information with the departure target time set by the setting unit and the information of the target component, and displays multiple work instruction information at a glance.

13. The job guidance system according to claim 12, wherein, The device requires a timeframe including the delivery time. The setting unit will set the time required for the operator to prepare the object component, which is calculated by rewinding the departure target time, as the operator's operation start target time. In addition to the departure target time and the information of the object component, the display indicator also displays the operation start target time in association with the operation instruction information, and arranges multiple operation instruction information in ascending order according to the operation start target time and displays them at a glance.

14. A method for guiding homework assignments, comprising: The requirement for obtaining a process, for components used in a screen printing machine, is a requirement for obtaining a device time, which includes at least one of the following: the time when a new component needs to be delivered to the screen printing machine and the time when a component already used in the screen printing machine needs to be recycled. The process is set in such a way that the required time of the process is obtained by the device at the required time. The departure target time that needs to be set from the departure point to the screen printing machine and the information of the component, i.e. the target component, that needs to be automatically or manually operated at the device required time corresponding to the departure target time are set according to the type of component. as well as The display instruction process establishes associated work instruction information for the two pieces of information: the departure target time set through the setting process and the information of the object component, so that multiple work instruction information are displayed at a glance.

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