Component mounting machine

Abstract

A component mounter according to the present invention comprises: a base having a table attachment part; a feeder table attached to the table attachment part and equipped with a tape feeder that feeds a carrier tape accommodating a plurality of components and supplies the components to a predetermined supply position; and a cover provided on the feeder table and capable of changing between a closed state in which the area above the tape feeder is covered with the exception of the supply position, and an opened state in which the area above the tape feeder is not covered.

Description

Technical Field

[0001] This specification relates to a component mounter using a tape feeder.

Background Art

[0002] Techniques for mass-producing substrate products by performing substrate work on a substrate with a circuit pattern formed thereon have become widespread. As a typical example of a substrate working machine, there is a component mounter that performs component mounting work. Many component mounters use a tape feeder that pulls out and feeds a carrier tape containing a plurality of components from a reel. When the mounting work progresses and the carrier tape is used up to the end, the operator replaces the reel or replaces the tape feeder to replenish the components. On the other hand, in many cases where the type of substrate product is changed, the operator replaces a plurality of reels or a plurality of tape feeders together. Conventionally, a cover has been provided for the purpose of ensuring the safety of the tape feeder during operation. One technical example regarding a cover that covers the tape feeder is disclosed in Patent Document 1.

[0003] The component mounting apparatus disclosed in Patent Document 1 includes a component supply space where a component supply unit (tape feeder) is arranged by inserting a carriage, a mounting space where components are mounted on a substrate using a head unit having nozzles, a cover unit that separates the mounting space from the component supply space and enables the head unit to operate during carriage replacement, and a nozzle preparation unit provided in the cover unit. According to this, it is said that the occupancy rate of the nozzle preparation unit in the component mounting apparatus can be reduced. Furthermore, according to the description of the embodiment, by horizontally moving the shutter member that constitutes the cover unit, the opening through which the nozzle sucks the component can be blocked, and the mounting space and the component supply space can be completely isolated.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, not limited to the configuration of Patent Document 1, in a component mounting machine, generally, when performing a setup replacement using another reel instead of the reel around which the carrier tape in use is wound, the tape feeder rewinds the carrier tape in the reverse direction during normal operation, and the operator has to remove the reel and wind up the carrier tape. When rewinding the carrier tape, if there is a cover such as the cover unit exemplified in Patent Document 1, the rewinding operation of the carrier tape may be inhibited, the carrier tape may be damaged, or the setup replacement work of the operator may be complicated.

[0006] Therefore, this specification aims to solve the problem of providing a component mounting machine that can smoothly rewind the carrier tape in use in the tape feeder in the reverse direction.

Means for Solving the Problems

[0007] This specification discloses a component mounting machine including a base having a table mounting portion, a feeder table mounted on the table mounting portion and equipped with a tape feeder that feeds a carrier tape containing a plurality of components to supply the components to a predetermined supply position, and a cover provided on the feeder table that can be changed between a closed state covering the upper part except the supply position of the tape feeder and an open state opening the upper part.

Effects of the Invention

[0008] In the disclosed component mounting machine, when rewinding the carrier tape in use in the reverse direction, the cover can be opened to widely open the direction in which the carrier tape returns, so that the carrier tape can be smoothly rewound in the reverse direction. Also, when the carrier tape is not rewound in the reverse direction, the cover can be closed to maintain the original function of the cover.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

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Figure 8

Figure 9

Modes for Carrying Out the Invention

[0010] 1. Overall Configuration of Component Mounting Machine 1 of the Embodiment The overall configuration of the component mounting machine 1 according to the embodiment will be described with reference to FIG. 1. The component mounting machine 1 performs a mounting operation of mounting components on a substrate K. The direction from the left side to the right side of the drawing of FIG. 1 is the X-axis direction in which the substrate K is conveyed, and the direction from the lower side (front side) to the upper side (rear side) of the drawing is the Y-axis direction. The component mounting machine 1 includes a substrate conveying device 2, a component supply device 3, a component transfer device 4, a base 10, and a control device (not shown).

[0011] The substrate conveying device 2 includes a pair of guide rails 21, a pair of conveying belts (not shown), a clamp mechanism 23, and the like. The pair of guide rails 21 extend in the X-axis direction across the upper surface of the base 10 slightly toward the rear, and are assembled to the base 10 in parallel with each other. The pair of conveying belts rotate along the guide rails 21 with two parallel sides of the substrate K placed thereon, and carry the substrate K into the work execution position near the center of the base 10. The clamp mechanism 23 pushes up the carried-in substrate K and clamps it between the guide rails 21 for positioning. After the component mounting operation by the component transfer device 4 is completed, the clamp mechanism 23 releases the substrate K, and the conveying belt carries the substrate K out of the machine.

[0012] The component supply device 3 includes a feeder table 5 and a plurality of tape feeders 9. The feeder table 5 is detachably provided with respect to a table mounting portion 11 provided at the upper part of the front side of the base 10. The feeder table 5 is generally rectangular in plan view. A plurality of tape feeders 9 are mounted on the feeder table 5 in an array in the left-right direction. The feeder table 5 is incorporated in a component supply cart 31 to improve the workability of movement and detachment operations (details will be described later). However, it is not limited thereto, and the feeder table 5 may be formed in a portable single body shape.

[0013] The tape feeder 9 pulls out the carrier tape T from the reel R and feeds it (see Fig. 3), and supplies the components in a supply position 91 near the rear end so that they can be picked up. The tape feeder 9 is formed in a thin shape with a small width dimension in the left-right direction. The tape feeder 9 allows a plurality of types to be mixed corresponding to differences in the tape width dimension of the carrier tape T, and also allows a plurality of types with different internal configurations to be mixed. The configuration example of the tape feeder 9 will be described in detail later.

[0014] The component transfer device 4 is composed of a pair of guide rails 40, a Y-axis moving body 41, an X-axis moving body 42, a mounting head 43, a rotary tool 44, a suction nozzle 45, a substrate recognition camera 46, and a component recognition camera 49, etc. The pair of guide rails 40 are arranged on the left and right edges of the base 10, are parallel to each other while being separated, and extend in the Y-axis direction. The Y-axis moving body 41 is formed of a member long in the X-axis direction and is mounted on the pair of guide rails 40. The Y-axis moving body 41 is driven by a Y-direction drive mechanism (not shown) to move in the Y-axis direction. The X-axis moving body 42 is mounted on the Y-axis moving body 41 and is driven by an X-direction drive mechanism (not shown) to move in the X-axis direction.

[0015] The mounting head 43 is provided on the front surface of the X-axis moving body 42 and moves in two horizontal directions together with the X-axis moving body 42. A rotary tool 44 is rotatably provided below the mounting head 43. The rotary tool 44 rotates around a vertical central axis. The rotary tool 44 has a plurality (12 in the example of Fig. 1) of suction nozzles 45 at equal distances from the vertical central axis. The suction nozzle 45 is a form of a component mounting tool for mounting components at a predetermined mounting position on the substrate K. The suction nozzle 45 performs a lifting and lowering operation and a rotation operation around a vertical axis. Also, when the rotary tool 44 rotates, the suction nozzle 45 revolves around the vertical central axis of the rotary tool 44. The suction nozzle 45 has negative pressure or positive pressure air selectively supplied from an air supply mechanism (not shown) to perform component suction and mounting. Note that the rotary tool 44 may be omitted and a configuration in which one suction nozzle 45 is rotatably provided below the mounting head 43 may also be adopted.

[0016] The substrate recognition camera 46 is provided on the X-axis moving body 42 alongside the mounting head 43. The substrate recognition camera 46 is arranged such that its optical axis faces downward, and images the position reference marks attached to the substrate K from above. The acquired image data is processed, and the working position of the substrate K is accurately determined. As the substrate recognition camera 46, a digital imaging device having an imaging element such as a CCD (Charge Coupled Device) or CMOS (Complementary Metal Oxide Semiconductor) can be exemplified.

[0017] The component recognition camera 49 is provided on the base 10 between the substrate transfer device 2 and the component supply device 3. The component recognition camera 49 is arranged such that its optical axis faces upward. The component recognition camera 49 images and recognizes the component held by the suction nozzle 45 from below while the mounting head 43 moves from the component supply device 3 to the substrate K. Thereby, the correctness of the component type is determined, and the position and orientation of the component with respect to the suction nozzle 45 are detected and reflected in the mounting operation. As the component recognition camera 49, a digital imaging device having an imaging element such as a CCD or CMOS can be exemplified.

[0018] The component transfer device 4 can repeat a plurality of suction and mounting cycles for the positioned substrate K. In the suction and mounting cycle, first, the mounting head 43 moves above the component supply device 3, and each suction nozzle 45 sucks the component. Next, the mounting head 43 moves above the component recognition camera 49, and the component recognition camera 49 performs imaging. Then, the mounting head 43 moves above the substrate K, and each suction nozzle 45 mounts the component on the substrate K. And the mounting head 43 moves toward the component supply device 3 again. The suction and mounting cycle is a general term for the series of operations described above.

[0019] The control device with a schematic diagram omitted is assembled to the base 10, and its installation position is not particularly limited. The control device is composed of a computer device having a CPU and operating with software. Note that the control device may be configured such that a plurality of CPUs are distributed and communicatively connected within the machine. The control device controls the substrate transfer device 2, the component supply device 3, and the component transfer device 4 based on the mounting operation data created for each type of substrate K, and advances the component mounting operation. The mounting operation data is data that describes the detailed procedures and implementation methods of the mounting operation. The mounting operation data includes information such as the types and numbers of components to be mounted and the tape feeders 9 to be used.

[0020] 2. Configuration example of the tape feeder 9 Next, a configuration example of the tape feeder 9 will be described with reference to FIG. 3. As shown in the figure, the tape feeder 9 is formed with a small rear part and a large front part that expands downward. The tape feeder 9 has a ridge portion (not shown in the figure) that protrudes downward from the bottom surface of the rear part. The tape feeder 9 has a reel holding portion 92 that rotatably holds the periphery of the reel R at the front lower part. The reel R is a rotating body around which a carrier tape T (shown by a thick line in FIGS. 3 and 5) containing a plurality of components is wound. The carrier tape T has cavities for accommodating components one by one formed at a constant pitch. Further, the carrier tape T is provided with a large number of sprocket holes at a predetermined pitch on one side in the tape width direction.

[0021] The tape feeder 9 has a tape guide 93 that guides the carrier tape T to the supply position 91. The tape guide 93 starts from the upper rear side of the reel holding portion 92, is inclined obliquely upward and rearward at first, and extends horizontally rearward from the middle to reach the supply position 91. The tape feeder 9 further includes a tape peeling portion 94. The tape peeling portion 94 is formed to include the rear part of the tape guide 93 and the supply position 91. The tape peeling portion 94 temporarily opens the cavity portion of the carrier tape T to enable the extraction of components.

[0022] The carrier tape T that has passed through the supply position 91 is further sent rearward and then descends to reach the tape cutting mechanism 12 provided on the base 10. The tape cutting mechanism 12 cuts the used portion on the leading end side of the carrier tape T to generate a waste tape. The cut waste tape falls toward the waste tape storage portion 38 disposed on the lower side. Therefore, the used portion on the leading end side of the carrier tape T usually becomes less than a certain fixed length.

[0023] The tape feeder 9 has a sprocket 95 and a drive motor 96 as a drive mechanism for feeding the carrier tape T. The sprocket 95 is rotatably provided below the tape guide 93 on the front side of the supply position 91. The teeth of the sprocket 95 penetrate upward through the notch formed in the tape guide 93 and engage with the sprocket holes of the carrier tape T.

[0024] The drive motor 96 is connected to the rotation shaft of the sprocket 95. By rotating forward, the drive motor 96 drives the sprocket 95 to rotate forward so as to feed the carrier tape T in a predetermined supply direction. Also, by rotating in reverse, the drive motor 96 drives the sprocket 95 to rotate in reverse so as to return the carrier tape T in the direction opposite to the supply direction (wind it back). The drive motor 96 is automatically controlled during normal operation and can be manually operated by an operator during standby or the like. Note that a plurality of sprockets 95 may be provided at different positions of the tape guide 93, and correspondingly, a plurality of drive motors 96 may be provided.

[0025] When removing the reel R from the tape feeder 9, the used reel R has no carrier tape T. Therefore, the operator can easily remove the reel R from the reel holding portion 92. On the other hand, for the reel R during use, there is still carrier tape T remaining, and the teeth of the sprocket 95 are engaged with the sprocket holes of the carrier tape T. Therefore, the operator cannot wind the carrier tape T around the reel R.

[0026] Therefore, the operator first reverses the drive motor 96 manually to wind back the carrier tape T and release the engagement with the sprocket 95. Next, the operator removes the reel R from the reel holding portion 92 and winds the carrier tape T around the reel R. The removal operation of the reel R described above is performed in the outer setup area outside the machine of the component mounter 1. That is, the removal operation of the reel R is not performed with the feeder table 5 attached to the table attachment portion 11, but is performed after the feeder table 5 is removed.

[0027] 3. Feeder Table 5 and Component Supply Cart 31 Next, the component supply cart 31 including the feeder table 5 will be described with reference to FIGS. 2 to 5. The component supply cart 31 includes, in addition to the feeder table 5, a bottom plate 32, a pair of left and right leg members 33, a storage box 35, a pair of left and right side plates 39, and the like. The bottom plate 32 is a flat plate member that is long in the left-right direction and is arranged parallel to the floor surface near the floor surface.

[0028] The pair of left and right leg members 33 are elongated members extending in the front-rear direction. The pair of left and right leg members 33 are provided parallel to each other while being separated on the left and right sides of the upper surface of the bottom plate 32, and protrude in the front-rear direction from the bottom plate 32. Each of the leg members 33 is formed of, for example, a steel section having a crank-shaped cross section that opens downward. Wheels 34 that travel on the floor surface are provided at the front end portion and the rear end portion of the lower surface of the leg member 33. At least one of the front and rear wheels 34 is a swivel wheel with a variable traveling direction.

[0029] The storage box 35 is formed in a rectangular parallelepiped shape that opens upward. The storage box 35 is arranged above the bottom plate 32 and can be pulled out forward. The storage box 35 is partitioned by a partition plate 36 that is inclined around the middle in the front-rear direction into a front-side equipment storage portion 37 and a rear-side waste tape storage portion 38. The equipment storage portion 37 can store instruments such as the suction nozzle 45 used for replacement in the component mounter 1, general-purpose tools, and components such as the reel R. The waste tape storage portion 38 stores the waste tape described above.

[0030] A pair of left and right side plates 39 are provided so as to stand up from the left and right edges of the bottom plate 32. Near the front of each of the side plates 39, an operation handle 3A in the shape of a round bar that bends upward is provided. By operating the left and right operation handles 3A, an operator can move the component supply cart 31 and attach the feeder table 5. On the inner surface of each of the side plates 39, an arm 3B in the shape of a flat plate that refracts further upward toward the rear is provided. When the feeder table 5 is attached to the table attachment portion 11, the arm 3B is arranged in the vicinity of the front end of the component mounting machine 1. The feeder table 5 is provided horizontally so as to be spanned across the upper ends of the left and right arms 3B.

[0031] The feeder table 5 is composed of a bottom plate portion 51, a connecting portion 53, a pair of left and right side plates 54, a fixed cover 55, a movable cover 57, and the like. The bottom plate portion 51 is a rectangular plate-shaped member arranged horizontally. A plurality of groove-shaped slots 52 extending in the front-rear direction and arranged at a predetermined pitch in the left-right direction are formed on the upper surface of the bottom plate portion 51 (see FIG. 6). The slot 52 is one form of the mounting position for mounting the tape feeder 9. In FIGS. 2 and 4, a large number of outer contour lines representing the shapes of the plurality of slots 52 overlap and appear black.

[0032] The ridge portion on the bottom surface of the rear portion of the tape feeder 9 is inserted from the front side to the rear side of the slot 52. Thereby, the tape feeder 9 is mounted on the feeder table 5. Also, a large-sized tape feeder 9 with a large width dimension is mounted occupying a plurality of slots 52. In FIGS. 2 and 4, one tape feeder 9 is illustrated, and actually, a plurality of tape feeders 9 are mounted side by side on the left and right.

[0033] The connecting portion 53 is provided upright from the trailing edge of the bottom plate portion 51. On the front surface of the connecting portion 53, a table-side positioning portion and a table-side connector (not shown) are provided corresponding to the positions of the respective slots 52. On the other hand, on the rear surface of the tape feeder 9, a feeder-side positioning portion and a feeder-side connector (not shown) are provided. When the tape feeder 9 is inserted to the innermost part of the slot 52, the feeder-side positioning portion automatically engages with the table-side positioning portion, and the mounting position of the tape feeder 9 is determined. At the same time, the feeder-side connector automatically fits with the table-side connector, and power supply and communication connection from the feeder table 5 to the tape feeder 9 are performed.

[0034] A pair of left and right side plates 54 are provided upright at upper positions of the left and right arms 3B of the bottom plate portion 51. The fixed cover 55 is a plate-shaped member long in the left-right direction. The fixed cover 55 is horizontally bridged at a position near the front of the upper edges of the left and right side plates 54. The rear portion of the fixed cover 55 is an inclined portion 56 that is refracted obliquely rearward and downward.

[0035] The cover 57 is a plate-shaped member long in the left-right direction. The cover 57 is bridged at a position near the rear of the upper edges of the left and right side plates 54. On both left and right sides of the cover 57, swing arms 58 extending forward are provided. The tips of the swing arms 58 are rotatably supported by swing shafts 59 provided on the outer surfaces of the left and right side plates 54. Thereby, the cover 57 rotates and swings about the swing shaft 59 according to the opening and closing operation of the operator. A rear stopper 5A is provided at a position on the outer surface of the side plate 54 behind the swing shaft 59 (see FIG. 4). Further, a front stopper 5B is provided at a position on the outer surface of the side plate 54 in front of the swing shaft 59 (see FIG. 2).

[0036] The cover 57 rotates and swings backward until it abuts against the rear stopper 5A, and assumes a substantially horizontal posture. At this time, the cover 57 is in a closed state covering the upper part except the supply position 91 of the tape feeder 9. Then, the front edge of the cover 57 overlaps with the inclined portion 56 and is combined with the fixed cover 55, thereby functioning equivalently as one large cover. Further, the cover 57 rotates and swings forward until it abuts against the front stopper 5B, and assumes a substantially 60° inclined posture (see Fig. 5). At this time, the cover 57 is located above the fixed cover 55. In other words, the cover 57 rotates and swings forward by approximately 120° from the closed state, changing to an open state in which the upper part of the tape feeder 9 is opened.

[0037] As shown in Fig. 3, the fixed cover 55 and the cover 57 in the closed state cover at least a part of the region between the reel R and the tape peeling portion 94 above the tape feeder 9. In other words, the fixed cover 55 and the cover 57 in the closed state cover the range where the upper part of the tape guide 93 is opened. The cover 57 in the closed state may extend in a form that reaches the tape peeling portion 94. The fixed cover 55 and the cover 57 in the closed state prevent the carrier tape T fed along the tape guide 93 from curving upward and loosening.

[0038] Here, the original functions of the fixed cover 55 and the cover 57 in the closed state can be rephrased as a safety cover. That is, the fixed cover 55 and the cover 57 in the closed state prevent an operator from contacting the operating tape feeder 9. In particular, the fixed cover 55 and the cover 57 in the closed state prevent an operator from contacting the carrier tape T being fed, ensuring high safety.

[0039] Not limited to this, the original functions of the fixed cover 55 and the cover 57 in the closed state may be a guide cover. That is, the fixed cover 55 and the cover 57 in the closed state can be adjusted so that the height position of the tape feeder 9 held by the operator does not become too high, and guide it to the slot 52 (mounting position).

[0040] On the one hand, as shown in FIG. 3, between the cover 57 in the closed state and the tape guide 93, there is a narrow passage with a small gap dimension G1. For this reason, when the drive motor 96 is reversed to rewind the carrier tape T, the rewinding operation may be inhibited by the cover 57. That is, as shown by the thick dashed line, the carrier tape T may get caught on the cover 57 and bend upward. In particular, the catching of the carrier tape T is likely to occur in the large tape feeder 9 with a large tape width dimension.

[0041] When the carrier tape T gets caught, damage such as the occurrence of a bent and unusable length region or the dropping of parts from some cavity portions may occur. Furthermore, the setup change work of the operator who winds the carrier tape T onto the reel R becomes complicated. These problems frequently occurred in the conventional configuration provided with a large fixed cover comparable in size to the combined size of the fixed cover 55 and the cover 57 in the closed state.

[0042] In the present embodiment, before reversing the drive motor 96, the operator opens the cover 57 to the open state as shown in FIGS. 4 and 5. As a result, the narrow passage with the gap dimension G1 disappears. Instead, a narrow passage with a gap dimension G2 is generated between the fixed cover 55 and the tape guide 93 (see FIG. 5). Even so, the gap dimension G2 ensures at least about three times the gap dimension G1. That is, by changing the cover 57 to the open state, the direction in which the carrier tape T returns can be widely opened. As a result, the carrier tape T can be smoothly rewound in the reverse direction, and almost no catching occurs.

[0043] 4. Entry restriction unit 6 Next, the access control unit 6 will be described with reference to FIGS. 1 and 6. As shown in FIG. 1, the access control unit 6 is provided in a pair on the left and right sides near the front ends on the left and right sides of the table mounting portion 11. The access control unit 6 allows the feeder table 5 to enter the table mounting portion 11 when the cover 57 is in the closed state, and restricts the feeder table 5 from entering the table mounting portion 11 when the cover 57 is in the open state. The access control unit 6 always attaches the feeder table 5 with the cover 57 in the closed state, thereby reliably maintaining the original function of the cover 57 during the operation of the component mounting machine 1.

[0044] The access control unit 6 is composed of a member to be restricted provided on the cover 57 and an access control member 61 provided on the base 10. The member to be restricted is a member whose position or posture changes at least in one of the closed state and the open state of the cover 57. In the present embodiment, the swing arm 58 of the cover 57 or the cover 57 itself functions as the member to be restricted.

[0045] On the other hand, the access control member 61 provided on the base 10 is arranged close to the outside of the side plate 54 of the feeder table 5 that moves in the front-rear direction, as shown in FIG. 6. The access control member 61 has a crank-shaped notch portion 62 that opens inward toward the side plate 54. The notch portion 62 allows the entry and passage of the cover 57 in the horizontal posture in the closed state. On the other hand, the notch portion 62 restricts the entry of the cover 57 in the inclined posture in the open state.

[0046] That is, the inclined cover 57 or the swing arm 58 cannot enter the notch portion 62 by abutting against the upper edge of the notch portion 62, as shown in FIG. 6. The size and position of the crank shape of the notch portion 62 are designed so that the access control member 61 performs the above-described action. Thereby, it is possible to prevent the feeder table 5 from being attached when the cover 57 is in the open state.

[0047] 5. Release control unit 7 Next, the opening restriction unit 7 will be described with reference to FIGS. 1 and 7 to 9. As shown in FIG. 1, the opening restriction unit 7 is provided in a pair of left and right forms at a position rearward of the access restriction units 6 on the left and right sides of the table attachment unit 11. The opening restriction unit 7 restricts the change of the cover 57 from the closed state to the open state when the feeder table 5 is attached. The opening restriction unit 7 prevents an operator from accidentally opening the cover 57 during an operation interruption of the component mounting machine 1 or the like, and reliably maintains the original function of the cover 57.

[0048] The opening restriction unit 7 includes a locked member 71 provided on the cover 57 and an opening restriction member 72 provided on the base 10. As shown in FIG. 7, the locked member 71 is provided attached to the rear portions on both the left and right sides of the closed cover 57. The locked member 71 is a horizontally arranged plate-like member and is disposed at a position lower than the cover 57 main body.

[0049] On the other hand, the opening restriction member 72 provided on the base 10 is a horizontally arranged plate-like member. The opening restriction member 72 is fixed at a position slightly higher than the locked member 71 using a mounting member 73. The opening restriction member 72 locks the locked member 71 of the closed cover 57 and restricts the rotational swing of the cover 57. In the present embodiment, the opening restriction member 72 also serves as a member that supports a photoelectric sensor 86 described later. As a result, the number of components is reduced, and the material cost and the assembly work cost are reduced.

[0050] When the feeder table 5 is attached, as shown in FIGS. 8 and 9, the locked member 71 enters below the opening restriction member 72. Therefore, if an operator attempts to open the cover 57, the locked member 71 rises and abuts against the opening restriction member 72, but the subsequent rise is restricted by the opening restriction member 72. As a result, the cover 57 maintains the closed state without rotational swing.

[0051] 6. Detection unit 8 Next, the detection unit 8 will be described with reference to FIGS. 1 and 7 to 9. As shown in FIG. 1, the detection unit 8 has main components arranged at positions overlapping with the opening restriction unit 7 and is provided in a pair on the left and right. The detection unit 8 detects the mounting states of a plurality of tape feeders 9 mounted on the feeder table 5. The detection unit 8 is composed of a detection bar 81, a sensor dog 82, a photoelectric sensor 86, and the like.

[0052] As shown in FIGS. 7 and 8, the detection bar 81 is provided on the rear side of the cover 57. The detection bar 81 is a strip-shaped member having approximately the same width dimension in the left-right direction as that of the cover 57. The detection bar 81 is arranged at a position slightly higher than the upper surfaces of the plurality of tape feeders 9 mounted on the feeder table 5. The detection bar 81 can be finely adjusted in height position with respect to the cover 57 in order to accommodate individual differences in the height dimensions of the plurality of tape feeders 9.

[0053] The sensor dog 82 is provided above the locked members 71 on both the left and right sides of the closed cover 57 (see FIG. 9). The sensor dog 82 is a plate-shaped member arranged upright and has a light-shielding portion 83 on the rear side. The sensor dog 82 also has two long holes 84 that are long in the vertical direction. Each of the long holes 84 is displaceable in the vertical direction with respect to the pin member 85 on the cover 57 side. As a result, the sensor dog 82 can be finely adjusted in height position with respect to the photoelectric sensor 86. The sensor dog 82 moves up and down integrally with the cover 57 and the detection bar 81.

[0054] On the other hand, the photoelectric sensor 86 is supported on the upper surface of the opening restriction member 72 on the base 10 side. The photoelectric sensor 86 has a light projecting portion 87, a light receiving portion 88, and an output cable 89. The light projecting portion 87 and the light receiving portion 88 are arranged on the left and right sides with the light-shielding portion 83 of the sensor dog 82 interposed therebetween. The light projecting portion 87 irradiates detection light 8A (see FIG. 9) toward the light receiving portion 88. The light receiving portion 88 detects the amount of received detection light 8A, in other words, detects whether or not the detection light 8A is blocked by the light-shielding portion 83. The photoelectric sensor 86 outputs the detection result to the control device via the output cable 89.

[0055] As shown in FIG. 9, when a plurality of tape feeders 9 are in a good mounted state, the light-shielding portion 83 of the sensor dog 82 is located below the path of the detection light 8A. At this time, the light-receiving portion 88 detects a sufficient amount of the detection light 8A, and the photoelectric sensor 86 outputs a detection result indicating that the mounted state is good. Further, the separation distance D1 between the upper edge of the light-shielding portion 83 and the path of the detection light 8A is set to be smaller than the separation distance D2 between the locked member 71 and the release restricting member 72 in the release restricting portion 7.

[0056] Here, assume that the mounted state of one or more tape feeders 9 is not good. As described above, the tape feeder 9 is mounted with the protruding portion on the bottom surface inserted into the slot 52. However, it is not impossible for the tape feeder 9 to be mounted in a state where the protruding portion rides on the bottom plate portion 51 without being inserted into the slot 52. In this case, since the tape feeder 9 is mounted floating above the normal height position (a non-good mounted state), the detection bar 81 is pushed up.

[0057] As a result, the detection bar 81, the cover 57, the locked member 71, and the sensor dog 82 are in a state of rising integrally. Speaking more precisely about the cover 57, the cover 57 is displaced upward while rotating and rocking in the direction from the closed state to the open state. And before the locked member 71 comes into contact with the release restricting member 72, the light-shielding portion 83 of the sensor dog 82 shields the detection light 8A. Therefore, the light-receiving portion 88 detects the disappearance or decrease of the detection light 8A, and the photoelectric sensor 86 outputs a detection result indicating that the mounted state is not good. Since a pair of left and right detection portions 8 are provided, even if the detection bar 81 and the cover 57 rise while tilting in the left-right direction, a detection result indicating that the mounted state is not good can be obtained. The control device that receives this detection result does not start the mounting operation of the component mounting machine 1 and notifies the operator of the abnormality of the component supply device 3.

[0058] 7. Setup replacement work related to the component mounting machine 1 Next, the setup change operation related to the component mounter 1 will be described. In the component mounter 1, when the production achievement number of a certain substrate product reaches the target number, a setup change operation is required to use another reel R instead of the reel R around which the carrier tape T being used is wound. As described above, this setup change operation is carried out in the external setup area to prepare for the production of the next substrate product.

[0059] At the beginning of the setup change operation, the operator disconnects the component supply cart 31 from the component mounter 1 and moves it to the external setup area. The external setup area has a setup device that can supply power to the feeder table 5 and control the operation of the tape feeder 9. For this reason, each of the tape feeders 9 supplied with power via the feeder table 5 is in an operable state. Next, the operator opens the cover 57 from the closed state to the open state. Since this opening operation is not required to ensure safety by closing the cover 57 when the tape feeder 9 is not in operation, no problem will occur even if it is carried out. Moreover, this opening operation can be carried out because the release restricting member 72 remains on the side of the component mounter 1 and the release restricting portion 7 does not function.

[0060] Next, the operator rewinds the carrier tape T being used in each of the tape feeders 9 in the reverse direction. At this time, by controlling the setup device so that a plurality of tape feeders 9 perform rewinding simultaneously, the waiting time of the operator can be shortened. Also, for the tape feeder 9 that will continue to be used for the next substrate product, the operator maintains the current mounting state without rewinding the carrier tape T.

[0061] Since the cover 57 is in the open state during rewinding, the carrier tape T will not get caught on the cover 57. As a result, as shown in FIG. 5, the carrier tape T becomes slack inside and near the reel R. Therefore, the possibility of damage to the carrier tape T is eliminated.

[0062] Furthermore, the operator removes each of the tape feeders 9 from the feeder table 5. At this time, since the carrier tape T is not caught by the closed cover 57, the removal operation is easy. Next, the operator removes the reel R from the reel holding portion 92 of each tape feeder 9 and winds up the carrier tape T around the reel R. At this time, since the carrier tape T is slack in the vicinity of the reel R, the winding operation is easy. Depending on the structure of the tape feeder 9, the operator may remove and set the reel R with the tape feeder 9 mounted on the feeder table 5. Even in this case, the operation is easy.

[0063] Next, for each of the plurality of tape feeders 9, the operator sets a new reel R in the reel holding portion 92 and loads the carrier tape T by pulling it out until it engages with the sprocket 95. Further, after the operator closes the cover 57 from the open state to the closed state, the operator mounts the plurality of tape feeders 9 on the feeder table 5. Thereby, the setup of the component supply carriage 31 is completed. After this, the operator moves the component supply carriage 31 to the component mounting machine 1 and attaches the feeder table 5 to the table attachment portion 11.

[0064] During the attachment, if the cover 57 remains in the open state, due to the action of the entry restriction portion 6, the feeder table 5 cannot be attached. Therefore, the operator closes the cover 57 to the closed state on the spot (at the front position of the component mounting machine 1) and retries the attachment of the feeder table 5. Thus, the attachment of the feeder table 5 is completed, and the production preparation for the next substrate product is completed.

[0065] If the mounting state of the tape feeder 9 is not good, based on the detection result of the detector 8, the operator will be notified of this fact by the control device. The operator will once detach the component supply carriage 31 from the component mounter 1, visually check the tape feeder 9 on the spot, and reinsert it into the slot 52. Note that the number of tape feeders 9 with a poor mounting state is not limited to one, so the operator should carefully perform visual inspection and insertion to prevent omission. Furthermore, by the operator reinstalling the feeder table 5, the production preparation for the next substrate product will be completed.

[0066] In the component mounter 1 of the embodiment, when rewinding the carrier tape T that is being used in the reverse direction, the cover 57 can be opened to widely release the direction in which the carrier tape T returns, so that the carrier tape T can be smoothly rewound in the reverse direction. Also, when the carrier tape T is not being rewound in the reverse direction, the cover 57 can be closed to maintain the original function of the cover 57.

[0067] 8. Applications and Modifications of the Embodiment In the embodiment, it is possible to omit the fixed cover 55 and enlarge the rotating and swinging cover 57. Also, one or more of the entry restriction unit 6, the release restriction unit 7, and the detector 8 may be omitted. Furthermore, for the entry restriction unit 6 and the release restriction unit 7, it is not necessary for them to be a pair on the left and right, and either one of them may be omitted. The embodiment can have various other applications and modifications.

Explanation of Reference Numerals

[0068] 1: Component mounting machine 10: Base 11: Table attachment part 2: Substrate transfer device 3: Component supply device 31: Component supply cart 4: Component transfer device 5: Feeder table 51: Bottom plate part 52: Slot 55: Fixed cover 57: Cover 6: Entry restriction part 61: Entry restriction member 62: Notch part 7: Release restriction part 71: Locked member 72: Release restriction member 8: Detection part 81: Detection bar 82: Sensor dog 83: Light shielding part 86: Photoelectric sensor 87: Light projecting part 88: Light receiving part 8A: Detection light 9: Tape feeder 91: Supply position 92: Reel holding part 93: Tape guide 94: Tape peeling part 95: Sprocket 96: Drive motor R: Reel T: Carrier tape

Claims

1. A base having a table mounting portion, a feeder table detachably attached to the table mounting portion, with a tape feeder mounted thereon for feeding a carrier tape containing a plurality of components to supply the components to a predetermined supply position, a cover provided on the feeder table that can be changed between a closed state covering the upper portion except the supply position of the tape feeder and an open state opening the upper portion, an entry restriction portion that allows the feeder table to enter the table mounting portion in the closed state of the cover and restricts the feeder table from entering the table mounting portion in the open state of the cover, A component mounting machine comprising the above.

2. The entry restriction portion has a restricted member provided on the cover, at least one of the position or posture of which changes between the closed state and the open state of the cover, and an entry restriction member provided on the base that allows the restricted member to enter in the closed state of the cover and restricts the restricted member from entering in the open state of the cover. The component mounting machine according to Claim 1.

3. A base having a table mounting portion, a feeder table detachably attached to the table mounting portion, with a tape feeder mounted thereon for feeding a carrier tape containing a plurality of components to supply the components to a predetermined supply position, a cover provided on the feeder table that can be changed between a closed state covering the upper portion except the supply position of the tape feeder and an open state opening the upper portion, an opening restriction portion that restricts the change of the cover from the closed state to the open state when the feeder table is attached to the table mounting portion, A component mounting machine comprising the above.

4. The opening restriction portion has a locked member provided on the cover, and an opening restriction member provided on the base that locks the locked member of the cover in the closed state. The component mounting machine according to Claim 3.

5. A base having a table mounting portion, a feeder table attached to the table mounting portion, with a tape feeder mounted thereon for feeding a carrier tape containing a plurality of components to supply the components to a predetermined supply position, a cover provided on the feeder table that can be changed between a closed state covering the upper portion except the supply position of the tape feeder and an open state opening the upper portion, A detection unit that detects the mounting states of the plurality of tape feeders mounted on the feeder table. When one or more of the mounting states of the plurality of tape feeders are not good, the detection unit detects that the cover is displaced in the direction from the closed state to the open state. Component mounter.

6. A base having a table attachment portion. A feeder table that is mounted on the table attachment portion and mounts tape feeders that send a carrier tape containing a plurality of components and supply the components to a predetermined supply position. A cover provided on the feeder table that can be changed between a closed state that covers the upper part except the supply position of the tape feeder and an open state that opens the upper part. A detection unit that detects the mounting states of the plurality of tape feeders mounted on the feeder table. An unlocking restricting portion having a locked member provided on the cover and an unlocking restricting member provided on the base that locks the locked member of the cover in the closed state. The detection unit, or a member that supports the detection unit, also serves as the unlocking restricting member. Component mounter.

7. The component mounter according to any one of claims 1 to 6, wherein the cover is a safety cover that prevents an operator from contacting the tape feeder mounted on the feeder table attached to the table attachment portion.

8. The component mounter according to any one of claims 1 to 7, wherein the cover is a guide cover that guides the tape feeder to a mounting position provided on the feeder table.

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