Storage rack, exchange frame, rack system and printing device

Abstract

This accommodating rack 51 is used in a printing device provided with a printing unit that prints a viscous fluid using a screen mask on an object being processed, the accommodating rack 51 accommodating, in shelf form, a replacement frame provided with a frame-side stopper and a support part for supporting a replacement member used in the printing device. The accommodating rack comprises: an accommodating part for accommodating the replacement frame; a guiding part for supporting the replacement frame and guiding the replacement frame between the accommodating part and the exterior; and a rack-side stopper that protrudes inward from a reference outer surface of the replacement frame, the rack-side stopper engaging with the frame-side stopper and restricting removal of the replacement frame in a pulled-out state in which the replacement frame is pulled out from the accommodating rack.

Description

[Technical Field]

[0001] Disclosed herein are a storage rack, an exchange frame, a rack system, and a printing device. [Background technology]

[0002] Conventionally, for example, in a printing device that performs a printing process of a viscous fluid on a printing object such as a substrate using a screen mask, a device that automatically replaces replacement parts has been proposed (see, for example, Patent Document 1). In this printing device, the replacement parts can be automatically replaced, further reducing the burden on the operator. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2018 / 105016 Summary of the Invention [Problem to be solved by the invention]

[0004] In the printing device described above, the replacement part is supported by a replacement frame for automatic replacement, but it is also assumed that an operator will pull out the replacement frame and manually replace the replacement part. In such a case, if the replacement part is heavy, there is a risk that the replacement frame will fall if pulled out too far.

[0005] The present disclosure has been made in consideration of such problems, and its main purpose is to provide a storage rack, a replacement frame, a rack system, and a printing device that can ensure greater safety when replacing replacement parts used in a printing device. [Means for solving the problem]

[0006] The storage rack, exchange frame, rack system, and printing device disclosed in this specification employ the following means to achieve the above-mentioned main object.

[0007] The storage rack of the present disclosure comprises: A storage rack for storing replacement frames in a shelf-like manner, the replacement frames having a support part for supporting a replacement member used in the printing device and a frame-side stopper, the storage rack being used in a printing device having a printing unit that performs a printing process of a viscous fluid on a processing object using a screen mask, a housing portion that houses the replacement frame; a guide portion that supports the replacement frame and guides the replacement frame between the accommodation portion and the outside; a rack-side stopper that protrudes from a reference outer surface of the replacement frame toward the inside of the frame and engages with the frame-side stopper to restrict removal of the replacement frame in a pulled-out state in which the replacement frame is pulled out from the storage rack; It is equipped with the following.

[0008] In this storage rack, the frame-side stopper and the rack-side stopper engage with each other, restricting the removal of the replacement frame supporting the replacement component when it is in the pulled-out state. This storage rack can prevent the replacement frame from falling, further enhancing safety. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a schematic explanatory diagram showing an example of a mounting system 10 and a printing device 11. [Figure 2] FIG. 2 is an explanatory diagram showing an example of a printing device 11 and a rack system 50. [Figure 3] FIG. 1 is a schematic explanatory diagram of a rack system 50. [Figure 4] FIG. 2 is an explanatory diagram showing an example of a replacement frame 60. [Figure 5] FIG. 4 is an explanatory diagram showing the guide portion 56 and the replacement frame 60 as viewed from the front. [Figure 6] FIG. 4 is an explanatory diagram showing the guide portion 56 and the replacement frame 60 as viewed from the side. [Figure 7] FIG. 10 is an explanatory diagram showing an example of removing the replacement frame 60. [Figure 8] 10 is an explanatory diagram showing how the storage rack 51 is received and moved between the standby position and the replacement position. FIG. [Figure 9] 10 is a flowchart showing an example of an exchange processing routine. [Figure 10] FIG. 10 is an explanatory diagram showing an example of another rack-side stopper 57B and frame-side stopper 67B. DETAILED DESCRIPTION OF THE INVENTION

[0010] This embodiment will be described below with reference to the drawings. FIG. 1 is a schematic explanatory diagram showing an example of a mounting system 10 and a printing device 11 according to the present disclosure. FIG. 2 is an explanatory diagram showing an example of a printing device 11 and a rack system 50. FIG. 3 is a schematic explanatory diagram of a rack system 50 including a storage rack 51 and a replacement frame 60. FIG. 4 is an explanatory diagram showing an example of the replacement frame 60. FIG. 5 is an explanatory diagram showing the guide unit 56 and the replacement frame 60 as viewed from the front. FIG. 6 is an explanatory diagram showing the guide unit 56 and the replacement frame 60 as viewed from the side. FIG. 7 is an explanatory diagram showing an example of removing the replacement frame 60. FIG. 8 is an explanatory diagram showing the storage rack 51 received by the receiving unit 42 and moved between the standby position and the replacement position. In this embodiment, the left-right direction (X-axis), the front-rear direction (Y-axis), and the up-down direction (Z-axis) are as shown in FIGS. 1 to 8.

[0011] Mounting system 10 includes printing device 11, print inspection device 12, storage device 13, automated guided vehicle 14, mounting device 15, mounting inspection device 16, loader 18, a reflow device (not shown), and a management computer (PC) 19. Mounting system 10 is configured as a production line in which mounting devices 15 that mount components P on boards S (objects to be processed) are arranged downstream of printing device 11 in the transport direction of the boards S. In mounting system 10, mounting-related devices related to the mounting process include a transport device that transports boards S, printing device 11, print inspection device 12, storage device 13, mounting device 15, mounting inspection device 16, loader 18, reflow device, etc.

[0012] The print inspection device 12 inspects the condition of a viscous fluid, such as solder paste, printed on the board S by the printing device 11. The storage device 13 is a temporary storage location for feeders holding components P. The automated guided vehicle 14 automatically transports feeders between a preparation warehouse (not shown) and the storage device 13. The mounting device 15 performs a mounting process to place components P on the board S. The mounting inspection device 16 inspects the condition of components P mounted on the board S. The loader 18 is configured as a mobile work device that moves left and right along the X-axis rail 17 in front of the mounting device 15. It automatically attaches, detaches, collects, and replenishes mounting-related components used in the mounting device 15, such as feeders. The reflow device reflows boards on which solder has been printed and components P have been mounted. The management PC 19 manages information about each device in the mounting system 10. This management PC 19 manages the progress of each device on the production line that performs the mounting process.

[0013] As shown in FIGS. 1 and 2 , the printing device 11 uses a squeegee 25 to push solder on a screen mask M into pattern holes formed in the screen mask M, thereby applying (printing) the solder as a viscous fluid onto a substrate S serving as a processing object below through the pattern holes. Here, examples of the "processing object" include a substrate S on which components P are mounted and a three-dimensional base material. Examples of the "viscous fluid" include solder paste, conductive paste, and adhesive. The following description uses the substrate S and solder paste as examples. The screen mask M is fixed inside a replacement frame 60. The replacement frame 60 can hold replacement components such as screen masks M of various sizes and support members 32, and is sized to fit into the storage section 52 of the storage rack 51. As shown in FIG. 2, the printing device 11 includes a printing control unit 20, a printing unit 22, a mask work unit 26, a substrate processing unit 30, a cleaning unit 33, a fluid supply unit 35, an operation panel 38, a replacement unit 40, and a rack system 50.

[0014] The print control unit 20 is configured as a microprocessor centered on a CPU 21, and controls the entire printing apparatus 11. The print control unit 20 outputs signals to the printing unit 22, mask work unit 26, substrate processing unit 30, cleaning unit 33, fluid supply unit 35, operation panel 38, and replacement unit 40, as well as to a management PC 19 serving as an external device. The print control unit 20 also inputs signals from the printing unit 22, mask work unit 26, substrate processing unit 30, cleaning unit 33, fluid supply unit 35, operation panel 38, and replacement unit 40, as well as from the management PC 19 serving as an external device. The print control unit 20 has a storage unit that stores information about the substrate S to be printed, a print processing program that performs the print processing on the substrate S, and a replacement processing program that executes the replacement process of replacement parts by the replacement unit 27.

[0015] The printing unit 22 is disposed on the upper level of the printing device 11 and is a unit that prints a viscous fluid onto a substrate S using a screen mask M. As shown in FIGS. 1 and 2, the printing unit 22 includes a print head 23, a print moving unit 24, a squeegee lifting unit (not shown), and a squeegee 25. The print moving unit 24 moves the print head 23 in a predetermined printing direction (here, the front-to-rear direction) and includes a guide formed in the front-to-rear direction, a slider that moves along the guide, and a motor that drives the slider. The squeegee 25 is disposed below the print head 23 and is raised and lowered by the squeegee lifting unit. The printing unit 22 has two squeegees 25, one for the front and one for the rear. As shown in FIG. 2, the mask working unit 26 is disposed between the printing unit 22 and the substrate processing unit 30 in the vertical direction and is a unit that fixes and holds the screen mask M. The mask working unit 26 includes an exchange unit 27 and a mask fixing unit 28. The replacement unit 27 is used to pull the replacement frame 60 from the storage rack 51 into the housing of the printing device 11 and to push the replacement frame 60 from the housing of the printing device 11 into the storage rack 51. The replacement unit 27 is a transport rod attached to the print head 23 and is raised and lowered by an air cylinder (not shown) between a contact position (dotted line) where it contacts the screen mask M and a standby position (solid line). The print head 23 and replacement unit 27 engage with the replacement frame 60 between a shelf at a predetermined height of the storage rack 51 and the printing unit 22, moving the replacement frame 60. The mask fixing unit 28 positions the screen mask M and supports and fixes it in a horizontal position. The screen mask M is pushed by the replacement unit 27 and moved back and forth along the guide of the mask working unit 26, and is fixed by the mask fixing unit 28. The replacement frame 60 moves inside and outside the housing of the printing device 11 through a passage 39 located in the middle of the front of the housing (see FIG. 2).

[0016] The substrate processing unit 30 is disposed below the mask work unit 26 and is a unit that loads the substrate S, positions and supports the loaded substrate S, and brings the substrate S into contact with and separates from the screen mask M. The substrate processing unit 30 includes a substrate transport unit 31 that transports the substrate S in the left-right direction, a support member 32 that is a backup plate that supports the substrate S from below, and an elevator unit that raises and lowers the entire substrate processing unit 30 and the support member 32. The support member 32 is a flat member that is automatically replaced by the replacement unit 27 or the like depending on the type of substrate S. The replacement process of the support member 32 is performed, for example, as follows: The printing control unit 20 introduces an empty replacement frame 60 into the mask work unit 26 using the replacement unit 27, and then uses the elevator unit to raise the mounting unit with the support member 32 attached, and transfers the support member 32 to the replacement frame 60. Similarly, the printing control unit 20 causes the replacement frame 60 with the next support member 32 fixed thereto to be introduced into the mask work unit 26 by the replacement unit 27, and then raises the empty mounting unit by the lifting unit to mount the support member 32 on the mounting unit.

[0017] The cleaning unit 33 is disposed between the mask work unit 26 and the substrate processing unit 30 in the vertical direction, and is a unit that performs a cleaning process to clean the back surface of the screen mask M. The cleaning unit 33 has a cleaning member 34 that comes into contact with and cleans the screen mask M. The fluid supply unit 35 is a unit that supplies solder contained in a cartridge 36 onto the screen mask M. The fluid supply unit 35 is disposed in front of the print head 23. The fluid supply unit 35 applies pressure to the cartridge 36 to eject the solder from the cartridge 36. The cleaning member 34 and the cartridge 36 are consumables and are replaceable parts that are replaced as needed. The operation panel 38 is a unit that receives input from the operator W and presents information to the operator W. The operation panel 38 includes a display unit and an operation unit that is a touch panel type and has buttons.

[0018] The replacement unit 40 automatically replaces replacement parts by moving a storage rack 51 containing replacement parts used in the printing device 11 between a standby position and a replacement position. The replacement unit 40 is equipped with a belt drive device (not shown). The belt drive device is inserted into through grooves formed on the left and right sides of the storage section 52 of the storage rack 51, and is a unit that transports replacement parts into and out of the storage section 52 relative to the replacement frame 60. The replacement unit 40 is configured to accept the storage rack 51 containing replacement parts such as the screen mask M and support member 32 fixed to the replacement frame 60 and move the storage rack 51 back and forth and up and down. The replacement unit 40 has a left unit 41 and a right unit 45. The replacement unit 40 has a lift space 40a between the left unit 41 and the right unit 45, through which the storage rack 51 can be raised and lowered. The left unit 41 is disposed on the front left side of the housing of the printing device 11. The left unit 41 includes a receiving unit 42, a rack moving unit 43, and an area detection unit 44. The receiving unit 42 receives the storage rack 51 so that it can be raised and lowered. The rack moving unit 43 engages with the storage rack 51, moves the storage rack 51 back and forth when the storage rack 51 is on the ground, and raises and lowers the storage rack 51 when replacing a replacement part. The area detection unit 44 is a sensor that detects objects present around the left unit 41. This area detection unit 44 can be, for example, a laser scanner or an infrared sensor. Note that the receiving unit 46, rack moving unit 47, and area detection unit 48 of the right unit 45 have the same configuration as the receiving unit 42, rack moving unit 43, and area detection unit 44, and therefore their description will be omitted. The replacement unit 40 includes, for example, an open / close detection unit (not shown) that detects the open / close state of the door 54 of the storage rack 51. The replacement unit 40 also includes a replacement control unit 49. The exchange control unit 49 is configured as a microprocessor centered on a CPU, and controls the entire exchange unit 40. The exchange control unit 49 outputs control signals to the rack movement units 43 and 47, and acquires detection signals from the area detection units 44 and 48 and the open / close detection unit.

[0019] The rack system 50 is composed of a storage rack 51 and a replacement frame 60. As shown in FIGS. 1 to 3, the storage rack 51 is a movable storage and transport device that stores the replacement frames 60 in a shelf-like manner. The storage rack 51 only stores the replacement frames 60 and does not have a power source such as a drive unit for moving the replacement frame 60 or a drive unit for raising and lowering the replacement frame 60. This storage rack 51 can further simplify its configuration. The storage rack 51 includes a storage section 52, a handle 53, a door section 54, caster sections 55, guide sections 56, and a rack-side stopper 57. The storage section 52 is a box-shaped body with multiple stages of guide sections 56 arranged therein and two openings. One opening is opened and closed by the door section 54. The handle 53 is fixed to the top of the storage section 52. The handle 53 is composed of a rod-shaped member that is grasped by the worker W and a fixing member that fixes the rod-shaped member. The door unit 54 is a plate-shaped member that opens and closes the rear of the storage unit 52 (the front in FIG. 2). The door unit 54 is hinged at its lower end, and its upper end swings downward to open the opening (see FIGS. 3 and 6). The caster unit 55 is disposed below the storage unit 52. This caster unit 55 is composed of a structure with a space in the center and casters with wheels disposed on the underside of the structure. The worker W can move the storage rack 51 by holding this handle 53, and the automated guided vehicle 14 can also move by entering the central space below.

[0020] The guide portion 56 is a member that supports the replacement frame 60 and guides the replacement frame 60 between the storage portion 52 and the outside. The guide portion 56 is a member formed in the shape of a rectangular column that is elongated in the front-to-rear direction of the storage portion 52. The guide portion 56 has a running surface along which the cam followers 63 arranged on the replacement frame 60 move while rotating (see FIG. 5, etc.). The guide portions 56 are arranged in multiple stages on the left and right sides inside the storage portion 52, and are arranged vertically at predetermined intervals so that the replacement frame 60 can be placed vertically. The replacement frame 60 is inserted between the guide portion 56 and the guide portion 56 above it to form a shelf portion. The guide portion 56 supports the lower surface of the replacement frame 60 with its upper surface and also supports the upper end surface of the replacement frame 60 with its lower surface when the lower replacement frame 60 is pulled out, for example (see FIG. 3). 5, the guide portion 56 may be configured by combining a plurality of members, for example, a plate member having a stepped cross section, a plate member having an L-shaped cross section and a plate fixed to the stepped upper surface, and a member for the running surface of the cam follower 63. Alternatively, the guide portion 56 may be formed as an integrally molded product.

[0021] The rack-side stopper 57 engages with a frame-side stopper 67 provided on the replacement frame 60, and is a member that restricts removal of the replacement frame 60 when the replacement frame 60 is pulled out from the storage rack 51. The rack-side stopper 57 is provided at the tip of the opening side of each of the left and right guide portions 56. The rack-side stopper 57 is composed of a base portion 58 and a protruding portion 59. The base portion 58 is fixed to the side of the guide portion 56. As shown in FIGS. 5 and 6 , the protruding portion 59 protrudes toward the inside of the frame, i.e., upward, from a reference outer surface B of the replacement frame 60, and is a portion that engages with the frame-side stopper 67. In the replacement frame 60, the reference outer surface B is the underside of the frame body 61. For example, when the replacement frame 60 is viewed as a three-dimensional object, the reference outer surface B is the outer surface that occupies the majority of the replacement frame 60. As shown in FIG. 6 , the protrusion 59 has an abutment surface against which the rack-side stopper 57 abuts and an inclined surface inclined forward. As shown in FIG. 7 , the protrusion 59 is formed at a height such that, when the replacement frame 60 is in the pulled-out state (pulled out from the accommodation section 52) and its outer end is lifted, the frame-side stopper 67 passes over the protrusion 59, thereby releasing the restriction on movement. The inclined surface of the protrusion 59 makes it easy for the protrusion 59 to pass above the frame-side stopper 67 when the restriction on removal is released. Furthermore, the abutment surface of the protrusion 59 can reliably stop the frame-side stopper 67. The rack-side stopper 57 is fixed to the guide section 56 with a screw, and can be easily removed from the guide section 56 by removing the screw.

[0022] The replacement frame 60 is a frame body that supports replacement components used in the printing apparatus 11, and is a component that is stored in a storage rack 51 that has a rack-side stopper 57. A screen mask M as a replacement component is fixed to the mask working unit 26 while remaining fixed to the replacement frame 60, and is used in the printing process. The support member 32 as a replacement component is replaced via the replacement frame 60, and is removed from the replacement frame 60, or is attached to the replacement frame 60 and moved. The replacement frame 60 is stored in the storage unit 52, and forms a shelf portion with its end supported on the upper part of the guide portion 56. As shown in FIG. 4, the replacement frame 60 includes a frame body 61, a support portion 62, a cam follower 63, a passing portion 64, a nameplate 65, and a frame-side stopper 67.

[0023] The frame 61 has a structure in which columnar members with rectangular cross sections are attached to all four sides, with a support space in the center. The support portion 62 is disposed toward the inside of the frame 61 and is a member that supports replacement parts used in the printing device 11. An example of this support portion 62 is shown in FIG. 4, which supports two support members 32. When the fixed support member 32 is pushed up from below, the support portion 62 releases the fixed support member 32, and when a support member 32 is inserted from below while the frame 61 is empty, the support portion 62 fixes the support member 32. The cam follower 63 is a disc-shaped member rotatably supported on the underside of the inside of the frame 61 and rotates in the front-to-rear direction on the running surface of the guide portion 56. The frame 61 is supported by the guide portion 56 and the like via the cam follower 63. The passing section 64 is a space cut out from the reference outer surface B of the replacement frame 60 toward the inside of the frame, and is a space through which the rack-side stopper 57 passes as the replacement frame 60 moves (see FIG. 5). The passing section 64 is a space formed between the passing surface A formed by cutting out the frame body 61 and the reference outer surface B. The passing section 64 is formed on the underside of the replacement frame 60. The nameplate 65 has an indicator formed thereon for visually checking how far the replacement frame 60 has been pulled out from the storage section 52. The nameplate 65 has a warning area 66 formed at a position where the replacement frame 60 can be pulled out to the maximum. This nameplate 65 is colored in different colors depending on the amount of pulling out, for example. For example, the nameplate 65 may be colored green at the front, yellow in the center, and red for the warning area 66 at the rear end. The nameplate 65 may also be shaped so that it is thin at the front and thicker toward the rear end (see FIG. 4).

[0024] The frame-side stoppers 67 engage with the rack-side stoppers 57 to restrict removal of the replacement frame 60 when the replacement frame 60 is pulled out from the storage rack 51. One frame-side stopper 67 is provided on each side of the rear of the frame 61. The frame-side stoppers 67 are positioned based on an empirically determined position where the replacement frame 60 will not fall when pulled out, based on the weight of the supporting members 32 and the weight of the frame 61. The frame-side stoppers 67 are positioned based on this position. The frame-side stoppers 67 protrude between the passing plane A and the reference outer plane B, but do not protrude beyond the reference outer plane B. They are positioned within the space of the passing section 64 (see FIG. 5). Therefore, the frame-side stoppers 67 are unlikely to get caught on other structures when the replacement frame 60 is moved. The frame-side stoppers 67 are L-shaped members provided on the inner surface of the replacement frame 60 and include a support plate 68 and a locking portion 69 (see FIG. 3). The support plate 68 is a portion disposed on the frame body 61 and is a plate-like portion that fits along the inner surface of the frame body 61. The locking portion 69 is a portion that is connected to the support plate 68 and is a plate-like portion that is disposed approximately perpendicular to the inner surface of the frame body 61. The locking portion 69 abuts against the abutment surface of the protruding portion 59 of the rack-side stopper 57 to restrict movement of the replacement frame 60. The frame-side stopper 67 has the locking portion 69 that abuts against the rack-side stopper 57 at the front, and the support plate 68 fixes the locking portion 69 behind it. This more reliably restricts removal of the replacement frame 60, which is a relatively heavy object. In addition, because the locking portion 69 is relatively thin in the front-to-rear direction, as shown in FIG. 7 , the replacement frame 60 easily passes over the protruding portion 59 when being removed. The frame-side stopper 67 is fixed to the frame body 61 with a screw and can be easily removed from the frame body 61 by removing the screw.

[0025] Next, an overview of the printing process of the printing device 11 configured as described above will be described. When performing the printing process, the operator W stores the replacement frame 60 in the storage rack 51, moves the storage rack 51 to the replacement unit 40 (first stage in FIG. 8), and then performs the work of having the replacement unit 40 accept the replacement frame 60 (second stage in FIG. 8). After the replacement unit 40 accepts the storage rack 51, the operator W inputs a command to execute the printing process from the operation panel 38. When the operator W inputs a command to execute the printing process, the CPU 21 of the printing control unit 20 starts a printing process routine. The CPU 21 first transports and fixes the substrate S using the substrate processing unit 30, raises the support member 32 to support the substrate S from below, and then raises the entire unit to abut the substrate S against the screen mask M. At this time, the CPU 21 adjusts the position of the screen mask M using the mask working unit 26 to align the pattern holes with the substrate S.

[0026] Next, the CPU 21 ejects solder from the cartridge 36 onto the screen mask M, moves the print head 23, and lowers the squeegee 25 to abut the upper surface of the screen mask M, then moves it back and forth to print the solder on the substrate S. When the use of the screen mask M is finished, the CPU 21 executes a process to replace it with the next screen mask M. First, the CPU 21 causes the replacement unit 40 to pull the storage rack 51 out from the standby position retracted into the housing of the printing device 11 to the liftable position (third stage in FIG. 8), and then raises the storage rack 51 to the replacement position (fourth stage in FIG. 8). Then, the CPU 21 causes the replacement unit 27 to replace the screen mask M, and when the replacement is complete, causes the rack moving unit 43 to move the storage rack 51 to the standby position.

[0027] The CPU 21 also replaces the support member 32 as necessary. When the storage rack 51 is in the standby position, the worker W opens the door 54, pulls out the replacement frame 60, removes the used support member 32, and supports the next support member 32. If a heavy object is supported only on the tip end, the replacement frame 60 may fall. Therefore, the CPU 21 may notify the worker W via the operation panel 38 to remove the replacement frame 60 from the front support member 32. When the replacement frame 60 is pulled out of the storage section 52 of the storage rack 51, the worker W can check the nameplate 65 to adjust the pull so as not to pull it out too far. The rack-side stopper 57 and the frame-side stopper 67 stop the replacement frame 60 at a position where it will not fall. At this time, the lower surface of the replacement frame 60 is supported by the upper surface of the guide section 56, and the upper surface of the replacement frame 60 is supported by the lower surface of the guide section 56 one level above, providing stability (see FIG. 3). When the replacement frame 60 is ready, the CPU 21 moves the storage rack 51 to the replacement position, moves the empty replacement frame 60 to the mask work unit 26, and recovers the support member 32 that was attached to the substrate processing unit 30. The CPU 21 also moves the replacement frame 60 supporting the next support member 32 to the mask work unit 26 and attaches the support member 32 to the attachment unit. The CPU 21 repeats the printing process while replacing the screen mask M and the support member 32 until the production processing of all types of substrates S in the manufacturing plan is completed.

[0028] Next, a specific process for ensuring safety when the storage rack 51 is moved to replace a print-related component in the replacement unit 40 will be described. FIG. 9 is a flowchart showing an example of a replacement process routine executed by the replacement control unit 49. This routine is stored in the memory of the replacement control unit 49 and is executed when a replacement component is replaced. When this routine is executed, the CPU of the replacement control unit 49 determines whether or not there is a detected object in the peripheral area (see dotted line in FIG. 1) of the printing device 11 based on signals from the area detection units 44 and 48 (S100). If there is no detected object in the peripheral area, the CPU determines whether or not the door unit 54 is closed based on a signal from the open / close detection unit (S110). If the door unit 54 is closed, the CPU executes a replacement process for the replacement component (S120). Note that the replacement process executes the above-described process, and a detailed description thereof will be omitted. On the other hand, if an object is detected in the surrounding area in S100 or if the door unit 54 is open in S110, the CPU suspends the replacement process and displays a warning to that effect on the operation panel 38 (S130). After S130 or S120, the CPU of the replacement control unit 49 determines whether the replacement process is complete (S140). If the replacement process is not complete, the CPU executes the process from S100 onward. On the other hand, if the replacement process is completed in S140, the CPU outputs the results of the replacement process to the printing device 11 (S150) and terminates this routine. In the printing device 11, for example, if the door unit 54 is manually opened and the replacement frame 60 is pulled out, the replacement process is suspended, thereby ensuring greater safety. Furthermore, in the printing device 11, when an operator W pulls out the replacement frame 60 to replace a replacement part, the various mechanisms of the rack system 50 prevent the replacement frame 60 from falling, allowing the replacement work to be performed safely.

[0029] Here, the correspondence between the components of this embodiment and the components of the present disclosure will be clarified. The storage rack 51 of this embodiment corresponds to the storage rack of the present disclosure, the storage section 52 corresponds to the storage section, the guide section 56 corresponds to the guide section, the reference outer surface B corresponds to the reference outer surface, the rack-side stopper 57 corresponds to the rack-side stopper, and the protrusion 59 corresponds to the protrusion. Furthermore, the replacement frame 60 corresponds to the replacement frame, the support section 62 corresponds to the support section, the passing section 64 corresponds to the passing section, and the frame-side stopper 67 corresponds to the frame-side stopper. Furthermore, the substrate S corresponds to the object to be processed, the screen mask M corresponds to the screen mask, the rack system 50 corresponds to the rack system, the printing section 22 corresponds to the printing section, the rack moving sections 43 and 47 and the replacement section 27 correspond to the replacement section, and the printing device 11 corresponds to the printing device.

[0030] The storage rack 51 of the present embodiment described above includes a storage section 52 that stores the replacement frame 60, a guide section 56 that supports the replacement frame 60 and guides the replacement frame 60 between the storage section 52 and the outside, and a rack-side stopper 57 that protrudes toward the inside of the frame from the reference outer surface B of the replacement frame 60 and engages with a frame-side stopper 67 to restrict removal of the replacement frame 60 when the replacement frame 60 is in a pulled-out state after being pulled out from the storage rack 51. In this storage rack 51, the frame-side stopper 67 engages with the rack-side stopper 57, restricting removal of the replacement frame 60 that supports the support member 32 as a replacement member when in a pulled-out state. In this storage rack 51, it is possible to prevent the replacement frame 60 from falling, thereby further improving safety.

[0031] The rack-side stopper 57 is disposed on the tip side of the opening of the guide portion 56 and has a protruding portion 59 that protrudes upward and engages with the frame-side stopper 67. In this storage rack 51, the rack-side stopper 57 engages with the frame-side stopper 67 at the tip side, allowing the replacement frame 60 to be fully pulled out. In addition, in this storage rack 51, the protruding portion 59 that protrudes upward engages with the frame-side stopper 67, more reliably restricting removal of the replacement frame 60. Furthermore, the rack-side stopper 57 has the protruding portion 59 formed at a height such that when the outer end of the replacement frame 60 is lifted while the replacement frame 60 is in the pulled-out state, the frame-side stopper 67 exceeds the protruding portion 59, thereby releasing the restriction on movement. In this storage rack 51, the restriction on movement of the replacement frame 60 can be released and the replacement frame 60 can be removed by the simple task of lifting the end of the replacement frame 60. Furthermore, the guide parts 56 are arranged in multiple stages, and support the lower surface side of the replacement frame 60 with their upper surface side, and support the upper surface of the end part of the replacement frame 60 in the lower stage with the lower surface side of the upper stage. In this storage rack 51, the upper and lower guide parts 56 can support the replacement frame 60 that has been pulled out.

[0032] The replacement frame 60 also includes a support portion 62 that supports a replacement component used in the printing device 11; a passage portion 64 that is cut out from the reference outer surface B of the replacement frame 60 toward the inside of the frame and through which the rack-side stopper 57 passes as the replacement frame 60 moves; and a frame-side stopper 67 that protrudes between the passage portion 64 and the reference outer surface B and engages with the rack-side stopper 57 to restrict removal of the replacement frame 60 when the replacement frame 60 is pulled out from the storage rack. In this replacement frame 60, the frame-side stopper and the rack-side stopper engage, restricting removal of the replacement frame when the replacement frame supporting the replacement component is pulled out. In this storage rack 51, the replacement frame 60 can be prevented from falling, further enhancing safety. Furthermore, in this replacement frame 60, the passage portion 64 through which the rack-side stopper 67 passes is formed, and the frame-side stopper 67 does not protrude beyond the reference outer surface B. This makes it less likely for the frame-side stopper 67 to get caught on other components, allowing the replacement frame 60 to be pulled out smoothly. Furthermore, the passing portion 64 is formed on the underside of the replacement frame 60, and the frame-side stopper 67 is an L-shaped member disposed on the inner surface of the replacement frame 60. In this replacement frame 60, the frame-side stopper 67 has a simpler structure, and the movement of the replacement frame 60 can be more reliably restricted on the underside.

[0033] The rack system 50 includes the storage rack 51 and the replacement frame 60. In this rack system 50, the frame-side stopper 67 and the rack-side stopper 57 engage with each other, restricting removal of the replacement frame 60 supporting the replacement component when it is in a pulled-out state. This rack system 50 can prevent the replacement frame 60 from falling, further enhancing safety. In addition, in the rack system 50, at least one of the rack-side stopper 57 and the frame-side stopper 67 is arranged to be removable. In this rack system 50, removing either stopper releases the restriction on movement, allowing the replacement frame 60 to be easily used for automatic replacement by an automated guided vehicle 14 or the like.

[0034] The printing device 11 also includes a printing unit 22 that performs printing processing using a screen mask M and solder paste as a viscous fluid on a substrate S as an object to be processed, the rack system 50 described above, and rack movement units 43, 47 and a replacement unit 27 that act as replacement units that move a storage rack 51 between a replacement position and a standby position and pull a replacement frame 60 into the housing to replace replacement parts. This printing device 11 includes a rack system 50 in which a frame-side stopper 67 and a rack-side stopper 57 engage, restricting removal of the replacement frame 60 supporting the replacement part when it is in a pulled-out state. This printing device 11 can prevent the replacement frame 60 from falling, further improving safety.

[0035] It goes without saying that the storage rack, replacement frame, rack system, and printing device of the present disclosure are in no way limited to the above-described embodiments, and can be implemented in various forms as long as they fall within the technical scope of the present disclosure.

[0036] For example, in the above-described embodiment, the rack-side stopper 57 has been described as having a protruding portion 59 protruding upward. However, this is not particularly limited as long as it engages with the frame-side stopper 67. Furthermore, the rack-side stopper 57 is described as being fixed to the side surface of the guide portion 56. However, this is not particularly limited as long as it engages with the frame-side stopper 67. Furthermore, the passing portion 64 is described as being formed on the underside of the replacement frame 60. However, this is not particularly limited as long as the rack-side stopper 57 passes through it. FIG. 10 is an explanatory diagram showing an example of another rack-side stopper 57B and frame-side stopper 67B. In this rack system 50, the rack-side stopper 57B is fixed to the wall surface side of the storage rack 51, and the protruding portion 59 protrudes perpendicular to the wall surface. Furthermore, a passing portion 64B is formed on the side surface of the replacement frame 60. The frame-side stopper 67B is fixed to the frame body 61 without protruding from the reference outer surface B, which is the side surface. As with the rack-side stopper 57B and the frame-side stopper 67B, even if the directions of the engaging members are changed arbitrarily, as long as they are engaged, the same effect as the above-described rack system 50 can be achieved. Similarly, the forming direction of the passing portion 64 can also be changed appropriately to match the protruding direction of the rack-side stopper 57, as long as it is designed so that the rack-side stopper 57 passes through it.

[0037] In the above-described embodiment, the storage rack 51 is provided with a plurality of guide sections 56, but is not limited thereto and may be provided with a single guide section 56. In this case, the upper surface side of the replacement frame 60 may be supported by a member other than the guide section 56. Incidentally, it is preferable that the storage section 52 has a plurality of guide sections 56, as this improves the efficiency of the replacement work. Furthermore, even when the guide section 56 has a plurality of sections, the upper surface of the replacement frame 60 at the topmost section of the shelf section may be supported by a member other than the guide section 56.

[0038] In the above-described embodiment, the frame-side stopper 67 is an L-shaped member, but is not particularly limited to this, and may be the same shape as the rack-side stopper 57 or may be any shape as long as it abuts against the rack-side stopper 57 to restrict movement of the replacement frame 60. Furthermore, the rack-side stopper 57 has the protruding portion 59 having an abutment surface and an inclined surface, but is not particularly limited to this, and may be the same shape as the frame-side stopper 67 or may be any shape as long as it abuts against the frame-side stopper 67 to restrict movement of the replacement frame 60.

[0039] In the above-described embodiment, the rack-side stopper 57 and the frame-side stopper 67 are described as being fixed with screws and removable, but this is not particularly limited, and one or more of them may be non-removable. Furthermore, the rack-side stopper 57 is described as a separate, removable member, but for example, a portion of the guide section 56 or a portion of the wall of the accommodation section 52, which are difficult to remove, may be used as the rack-side stopper 57. Similarly, the frame-side stopper 67 is described as a separate, removable member, but for example, a portion of the frame body 61 or a portion of the support section 62, which are difficult to remove, may be used as the frame-side stopper 67.

[0040] In the above-described embodiment, the replacement frame 60 is provided with the nameplate 65, but this is not particularly limited, and the nameplate 65 may be omitted. In this rack system 50 as well, the frame-side stopper 67 and the rack-side stopper 57 engage with each other, and removal of the replacement frame 60 supporting the replacement component is restricted when the replacement frame 60 is in the drawn-out state, so that the replacement frame 60 can be prevented from falling, and safety can be further improved.

[0041] Although not specifically described in the above embodiment, the storage rack 51 may be provided with a locking unit that locks the door unit 54 when the storage rack 51 is moved to the replacement position. With this storage rack 51, the replacement frame 60 is prohibited from being pulled out when the storage rack 51 is in the replacement position, which makes it safer for the worker W.

[0042] The replacement frame of the present disclosure may be configured as follows: For example, the replacement frame of the present disclosure is used in a printing device having a printing unit that performs a printing process of a viscous fluid on a processing target using a screen mask, and is stored in a storage rack having a rack-side stopper, and includes: a support part that supports a replacement member used in the printing device, a passing part that is cut out from a reference outer surface of the replacement frame toward the inside of the frame and through which the rack-side stopper passes as the replacement frame moves, and a frame-side stopper that protrudes between the passing part and the reference outer surface and engages with the rack-side stopper to restrict removal of the replacement frame when the replacement frame is in a pulled-out state when it is pulled out from the storage rack.

[0043] In this replacement frame, the frame-side stopper and the rack-side stopper engage, restricting removal of the replacement frame supporting the replacement component when it is in the pulled-out state. This storage rack can prevent the replacement frame from falling, further enhancing safety. In addition, this replacement frame has a passage through which the rack-side stopper passes, and the frame-side stopper does not protrude from the outer surface, so the frame-side stopper is less likely to get caught on other components, allowing the replacement frame to be pulled out smoothly. [Industrial Applicability]

[0044] The present disclosure is applicable to the technical field of devices for mounting components. [Explanation of symbols]

[0045] , 10 Mounting system, 11 Printing device, 12 Printing inspection device, 13 Storage device, 14 Automatic guided vehicle, 15 Mounting device, 16 Mounting inspection device, 17 X-axis rail, 18 Loader, 19 Management PC, 20 Printing control unit, 21 CPU, 22 Printing unit, 23 Print head, 24 Printing movement unit, 25 Squeegee, 26 Mask work unit, 27 Replacement unit, 28 Mask fixing unit, 30 Substrate processing unit, 31 Substrate transport unit, 32 Support member, 33 Cleaning unit, 34 Cleaning member, 35 Fluid supply unit, 36 Cartridge, 38 Operation panel, 39 Passage opening, 40 Replacement unit, 40a Lifting space, 41 Left side unit, 42 Receiving unit, 43 Rack movement unit, 44 Area detection unit, 45 Left side unit, 46 Receiving unit, 47 Rack movement unit, 48 Area detection unit, 49 Replacement control unit, 50 rack system, 51 storage rack, 52 storage unit, 53 handle, 54 door unit, 55 caster unit, 56 guide unit, 57, 57B rack side stopper, 58 base, 59 protrusion, 60 replacement frame, 61 frame body, 62 support unit, 63 cam follower, 64, 64B passing unit, 65 nameplate, 66 caution area, 67, 67B frame side stopper, 68 support plate, 69 locking unit, A passing surface, B reference outer surface, M screen mask, S circuit board, P part, W operator.

Claims

1. A storage rack for storing replacement frames in a shelf-like manner, the replacement frames having a support part for supporting a replacement member used in the printing device and a frame-side stopper, the storage rack being used in a printing device having a printing unit that performs a printing process of a viscous fluid on a processing object using a screen mask, a housing portion that houses the replacement frame; a guide portion that supports the replacement frame and guides the replacement frame between the accommodation portion and the outside; a rack-side stopper that protrudes from a reference outer surface of the replacement frame toward the frame interior side, engages with the frame-side stopper, and restricts removal of the replacement frame in a pulled-out state in which the replacement frame is pulled out from the storage rack; A storage rack equipped with:

2. 2. The storage rack according to claim 1, wherein the rack-side stopper is disposed on a tip end side of the guide portion, and has a protruding portion that protrudes upward and engages with the frame-side stopper.

3. 3. The storage rack according to claim 2, wherein the rack-side stopper has a protrusion formed at a height at which, when the replacement frame is in a pulled-out state and an end of the replacement frame is lifted, the frame-side stopper exceeds the protrusion and movement restriction is released.

4. The storage rack according to any one of claims 1 to 3, wherein the guide portion is arranged in a plurality of stages, supports the lower surface side of the replacement frame on the upper surface side, and supports the upper surface of the end of the replacement frame of the lower stage on the lower surface side of the upper stage.

5. An exchange frame used in a printing device having a printing unit that performs a printing process of a viscous fluid on a processing object using a screen mask, the exchange frame being accommodated in a storage rack having a rack-side stopper, a support portion that supports a replacement member used in the printing device; a passage portion that is cut out from a reference outer surface of the replacement frame toward the inside of the frame and through which the rack-side stopper passes as the replacement frame moves; a frame-side stopper that protrudes between the passing portion and the reference outer surface, engages with the rack-side stopper, and restricts removal of the replacement frame in a pulled-out state in which the replacement frame is pulled out from the storage rack; Replacement frame with.

6. The passing portion is formed on a lower surface side of the replacement frame, 6. The replacement frame according to claim 5, wherein the frame-side stopper is an L-shaped member disposed on an inner surface of the replacement frame.

7. The storage rack according to any one of claims 1 to 4, A replacement frame according to claim 5 or 6; A rack system with

8. The rack system according to claim 7 , wherein at least one of the rack-side stopper and the frame-side stopper is detachably disposed.

9. a printing unit that performs printing processing of a viscous fluid on a processing object using a screen mask; A rack system according to claim 7 or 8; a replacement unit that moves the storage rack between a replacement position and a standby position and pulls the replacement frame into a housing to replace the replacement member; A printing device comprising:

Images