JP7745196B2 - Parts Mounting Equipment - Google Patents

Description

The present invention relates to a component mounting device that removes components from a carrier tape and mounts them on a substrate.

Component mounting devices that mount components onto boards are known. The component mounting device includes a board holder that holds the board, and a work head that picks up components from a component supply unit and mounts them on the board. A tape feeder that uses a carrier tape containing multiple components arranged in a row is often used as the component supply unit that supplies the components to the component supply unit.

A component mounting device that uses tape feeders as component supply units includes a feeder base that holds multiple component supply units in an array, and a carrier tape cutting device that cuts the carrier tape into strips after the components have been removed by the work head. Because the carrier tape ejected from the component supply units must be reliably introduced into the carrier tape cutting device, the carrier tape cutting device is often either installed on the base side as a set with the feeder base (see Patent Document 1 below) or on a cart attached to the base (see Patent Document 2 below).

The cart is detachable from the base and is equipped with a feeder base. Therefore, by attaching the cart to the base with multiple component supply units lined up and attached to the feeder base, multiple component supply units can be attached to the base all at once.

In the former type, where the feeder base and carrier tape cutting device are mounted as a set on the base, maintenance is easy because only one carrier tape cutting device is mounted on the base, but multiple component supply units cannot be replaced all at once. On the other hand, in the latter type, where the feeder base and carrier tape cutting device are mounted as a set on the cart, multiple component supply units can be replaced all at once, making component supply unit setup easy, but the drawback is that maintenance is time-consuming because a carrier tape cutting device is mounted on each cart.

Japanese Patent Application Laid-Open No. 2018-13308 JP 2009-64929 A

Given the above, if one were to attempt to incorporate the advantages of both the former and latter types, one possible configuration would be to mount the carrier tape cutting device on the base, while simultaneously replacing the component supply units using a cart. When a component mounting device is configured in this way, it is desirable to provide an electrical connector plug as the cart-side connector and an electrical connector socket as the base-side connector, and then position these connectors vertically so that they join together when the cart is attached to the base. However, when the connectors are not joined together, there is a risk that dirt and dust will get into the opening of the upward-facing connector, causing various problems, and there is also the problem that it is difficult to remove any dirt or dust that has entered through the opening.

The present invention aims to provide a component mounting device that can prevent dirt and dust from entering the upward-facing connector opening when the cart is separated from the base.

The component mounting device of the present invention has a base, a substrate holding section provided on the base and holding a substrate, a work head that takes out components from a carrier tape and places them on the substrate held by the substrate holding section, and a carrier tape cutting device that cuts the carrier tape from which the components have been taken out, and a feeder base section that holds an array of multiple component supply units that feed the carrier tape to a component take-out position by the work head, and a carriage that is detachable from the base, and a circuit provided on the feeder base section that transmits power and signals to the component supply units. The device comprises a trolley-side connector, a moving unit provided on the base for lifting and holding the feeder base unit, a base-side connector provided on the moving unit for connecting to the trolley-side connector when the feeder base unit is lifted by the moving unit, and a shutter provided on the moving unit for positioning in a shielding position to cover the base-side connector when the trolley is separated from the base , the shutter having a shutter main body made of a plate-shaped member and legs extending from the shutter main body, and the position of the shutter moves as the legs move along a rail unit .

This invention prevents dirt and dust from entering the upward-facing connector opening when the carriage is separated from the base.

FIG. 1 is a plan view of a component mounting device according to an embodiment of the present invention. 1 is a side view of a component mounting device according to an embodiment of the present invention; 1 is a side view of a component supply unit provided in a component mounting device according to an embodiment of the present invention; FIG. 1 is a plan view of a component mounting unit provided in a component mounting device according to an embodiment of the present invention. FIG. 1 is a plan view of a component mounting unit provided in a component mounting device according to an embodiment of the present invention. FIG. 1 is a plan view of a component mounting unit provided in a component mounting device according to an embodiment of the present invention. 1 is a cross-sectional view of a moving part provided in a component mounting unit of a component mounting device according to an embodiment of the present invention; 1A and 1B are cross-sectional views of a moving part provided in a component mounting unit of a component mounting device according to an embodiment of the present invention. 1 is a cross-sectional side view of a component mounting unit provided in a component mounting device according to an embodiment of the present invention; 1 is a cross-sectional side view of a component mounting unit provided in a component mounting device according to an embodiment of the present invention; 1 is a side view of a protruding portion and a guide plate provided in a component mounting unit of a component mounting device according to an embodiment of the present invention; 1A, 1B, and 1C are side views of a guide plate provided in a component mounting unit of a component mounting device according to an embodiment of the present invention; 1A and 1B are cross-sectional side views of a moving part provided in a component mounting unit of a component mounting device according to an embodiment of the present invention. FIG. 1 is a diagram showing a power air transmission path provided in a component mounting device according to an embodiment of the present invention. FIG. 1 is a side view of a part of a component mounting unit of a component mounting device according to an embodiment of the present invention. FIG. 1 is a side view of a part of a component mounting unit of a component mounting device according to an embodiment of the present invention. 1A and 1B are cross-sectional side views showing a part of a moving unit provided in a component mounting unit of a component mounting device according to an embodiment of the present invention, together with a part of a feeder base unit. 1A and 1B are plan views of a connection portion provided in a component mounting unit of a component mounting device according to an embodiment of the present invention. 1A and 1B are cross-sectional side views showing the state of connection between a coupler plug and a coupler socket in a component mounting unit of a component mounting device according to an embodiment of the present invention. 1A and 1B are cross-sectional side views showing a feeder base portion of a component supply portion of a component mounting device together with a component supply unit according to an embodiment of the present invention. FIG. 1 is a side view showing a state in which a component supply unit is separated from a component mounting unit of a component mounting device according to an embodiment of the present invention. FIG. 1 is a side view showing a component mounting unit of a component mounting device together with a component supply unit according to an embodiment of the present invention. FIG. 1 is a side view showing a component mounting unit of a component mounting device together with a component supply unit according to an embodiment of the present invention. 1A and 1B are cross-sectional side views showing a part of a moving unit provided in a component mounting unit of a component mounting device according to an embodiment of the present invention, together with a part of a feeder base unit.

Embodiments of the present invention will now be described with reference to the drawings. Figure 1 shows a component mounting device 1 in one embodiment of the present invention. The component mounting device 1 is a device that performs component mounting work by mounting components onto a board KB carried in from an upstream device and then carrying the board out to a downstream device.

In Figures 1 and 2, the component mounting device 1 includes a component mounting section 1A that transports the board KB horizontally and mounts components on the board KB, and a component supply section 1B that supplies components to the component mounting section 1A. For ease of explanation, the transport direction of the board KB in the component mounting device 1 is referred to as the X direction (horizontal direction), and the up-down direction (perpendicular to the paper surface) is referred to as the Z direction. Furthermore, the direction perpendicular to both the X and Z directions is referred to as the Y direction (front-to-back direction), and the side of the Y direction facing the center of the base 11 (the side toward the board holding section 12) is referred to as the rear, and the side facing the opposite direction (the side toward the end of the base 11) is referred to as the front.

In Figures 1 and 2, the component mounting section 1A includes a base 11, a substrate holder 12, a work head moving mechanism 13, a work head 14, a component camera 15, and a carrier tape cutting device 16. In Figure 3, the component supply section 1B includes a carriage 21 and multiple component supply units 22 attached to the carriage 21. Each component supply unit 22 consists of a tape feeder and feeds the carrier tape CT to supply components to a predetermined component removal position 22K.

In Figures 1 and 2, the board holder 12 consists of two conveyors 12a arranged parallel to one another in a horizontal plane. It transports the board KB received from the upstream device in the X direction and holds the board KB at a predetermined work position. The work head movement mechanism 13 consists of a Y drive motor 13a extending in the Y direction and two beams 13b extending in the X direction. Each beam 13b is equipped with an X drive motor, which moves the work head 14 in the X direction.

In Figure 2, the work head 14 is equipped with multiple nozzles 14N extending downward. The work head 14 picks up components supplied to the component pick-up position 22K by the component supply unit 22 using the nozzles 14N, then transports them above the board KB and places them in the designated position.

In Figures 1 and 2, the component camera 15 is mounted on the base 11, with its imaging field of view facing upward. When the work head 14 moves above the board KB with a component picked up by the nozzle 14N, the component camera 15 captures an image of the component from below to recognize the component.

In Figure 2, the carrier tape cutting device 16 is located opposite the component supply unit 1B on the base 11. The carrier tape cutting device 16 cuts the carrier tape CT discharged by each component supply unit 22 (the carrier tape CT after the work head 14 has removed the components) into strips.

In this embodiment of the component mounting device 1, which has this configuration, a feature is the configuration that includes a carrier tape cutting device 16 provided on the base 11 of the component supply unit 1B and the component mounting unit 1A, which is described below.

In Figures 1 and 2, a pair of left and right protrusions 11H are provided at each end of the base 11 in the Y direction. The left and right protrusions 11H protrude outward in the Y direction and face each other with a gap in the X direction. A rear wall 11W of the base 11 extending along the XZ plane is provided at the base of the left and right protrusions 11H, and a front wall 11J (see Figure 9) extending along the XZ plane is positioned in front of the rear wall 11W, facing the rear wall 11W in the Y direction. The space surrounded by the left and right protrusions 11H and rear wall 11W of the base 11 forms a cart mounting station 11S where the cart 21 of the component supply unit 1B is mounted.

The component supply unit 1B is mounted on a carriage mounting station 11S at each end of the base 11 in the Y direction (Figures 1 and 2). As shown in Figures 2 and 3, the carriage 21 has a carriage base 31 and a feeder base 32. The carriage base 31 is equipped with multiple casters 31C on its bottom, allowing it to be moved on the floor. An operator can manually move the carriage 21 to attach or detach it from the base 11. A box-shaped tape waste receptacle 31T is provided at the bottom of the carriage base 31. Strips of carrier tape CT (cuttings) cut by the carrier tape cutting device 16 fall into the tape waste receptacle 31T and are collected and recovered.

In Figure 2, a pair of left and right carriage guides 11G are provided at the lower part of the inner surfaces (two surfaces facing each other in the X direction) of the left and right protrusions 11H. Each of the left and right carriage guides 11G is equipped with multiple guide rollers 11R. When the carriage 21 is attached (inserted) into the carriage attachment station 11S, the carriage guides 11G guide the carriage 21 approaching the base 11 using the multiple guide rollers 11R. This allows the carriage 21 to be smoothly guided into the carriage attachment station 11S.

The base 11 provided in the component mounting unit 1A thus has a pair of left and right protrusions 11H that protrude toward the carriage 21 (forward), and these left and right protrusions 11H are provided with carriage guides 11G that guide the carriage 21 as it approaches the base 11.

In Figure 3, a guide post 33 is provided on the top of the carriage base 31, extending in the Z direction. The bottom 34 of the feeder base section 32 is provided at the upper end of the guide post 33. The bottom 34 of the feeder base section 32 is made of a flat plate-shaped member that extends along the XY plane. A support section 35 is provided on the top surface of the bottom 34, extending upward, and a unit mounting section 36 is attached to the upper end of the support section 35.

Multiple component supply units 22 are mounted in the unit mounting section 36, lined up in the X direction (Figure 1). The guide posts 33 are slidable in the vertical direction, allowing the feeder base section 32 to move up and down relative to the carriage base 31. A tape discharge guide 37 extends downward from the rear of the unit mounting section 36 (Figure 3).

In Figure 3, a reel RL is held on the carriage base 31. Carrier tape CT is wound around the reel RL. Each of the multiple component supply units 22 attached to the feeder base section 32 supplies components to the component removal position 22K by pulling out the carrier tape CT from the corresponding reel RL and sending the leading end rearward (toward the component mounting section 1A). After the carrier tape CT supplies the components to the component removal position 22K (i.e., after the components are removed by the work head 14), it is ejected from the rear of the component supply unit 22 and guided downward by the tape ejection guide 37.

In this embodiment, the feeder base portion 32 is provided with a tape discharge guide 37 that guides the carrier tape CT discharged from the component supply unit 22 downward.

In Figure 2, a carriage mounting section 38 is provided within the carriage mounting station 11S of the base 11. As also shown in Figure 4, the carriage mounting section 38 is configured to include a moving section 39 and a moving section drive mechanism 40. The moving section 39 is provided in front of the rear wall 11W of the base 11 in a state where it is allowed to move up and down relative to the base 11. The moving section drive mechanism 40 is installed behind the rear wall 11W, i.e., inside the base 11. A carrier tape cutting device 16 is provided within the moving section 39.

In Figures 5, 6, and 7 (Figure 7 is a cross-sectional view taken along line A-A in Figure 5), the moving section 39 comprises a pair of left and right front plates 41, a back plate 42, a pair of left and right side plates 43, and a bottom plate 44. The left and right front plates 41 are each made of a plate-like member extending along the XZ plane and are lined up in the X direction at a predetermined interval. The back plate 42 is made of a plate-like member extending along the XZ plane and is located behind the left and right front plates 41.

In Figures 5, 6, and 7, the left and right side plates 43 each consist of a plate-like member extending along the YZ plane. The left and right side plates 43 are joined to the widthwise (X-direction) ends of the left and right front plates 41 and the widthwise end of the back plate 42. The front ends of the left and right side plates 43 are located forward of the front plate 41.

The bottom plate 44 is made of a plate-like member that extends along the XY plane. The front end of the bottom plate 44 is joined to the lower parts of the left and right front plates 41, and the left and right ends of the bottom plate 44 are joined to the left and right side plates 43. The bottom plate 44 has stopper insertion holes 44H that penetrate through it in the thickness direction (Z direction).

The carrier tape cutting device 16 will now be described. As shown in Figures 5, 6, and 7, the carrier tape cutting device 16 is provided in a space surrounded by the left and right front plates 41, back plate 42, left and right side plates 43, and bottom plate 44 of the moving section 39.

The carrier tape cutting device 16 includes a cutter 50 consisting of a fixed blade 51 and a movable blade 52, and a cutter drive cylinder 53 that drives the cutter 50 (more specifically, the movable blade 52). As shown in Figures 5 and 6, the fixed blade 51 and the movable blade 52 each have a shape that extends horizontally in the X direction. The edge of the fixed blade 51 (fixed blade edge 51E) faces forward, and the edge of the movable blade 52 (movable blade edge 52E) faces backward.

In Figure 7, a pair of left and right rails 54 protruding upward and extending in the Y direction are provided on the top surface of the bottom plate 44. A slider 55 is engaged with the upper edge of each rail 54, allowing it to slide freely in the Y direction along the rails 54. A plate-shaped moving blade mounting portion 56 extending horizontally in the X direction is attached to the top surface of the left and right sliders 55.

In Figures 5 and 6, one cutter drive cylinder 53 is provided on each of the left and right front plates 41. The left and right cutter drive cylinders 53 are air cylinders, and each has its output shaft 53J facing rearward (Figure 7). The output shaft 53J of each cutter drive cylinder 53 passes rearward through the front plate 41, and its tip is connected to the underside of the moving blade mounting part 56 via a block-shaped connecting part 57 (Figures 5 and 6).

In Figure 7, the fixed blade 51 is attached to the upper end of the back plate 42. The movable blade 52 is attached to the upper surface of the movable blade mounting part 56 and is supported by left and right rails 54 via the movable blade mounting part 56 and slider 55 so that it can move freely in the Y direction. As described above, the movable blade mounting part 56 is connected to the output shafts 53J of the left and right cutter drive cylinders 53 via the left and right coupling parts 57, so the movable blade 52 can be moved in the Y direction by the left and right cutter drive cylinders 53.

When the left and right cutter drive cylinders 53 advance the output shaft 53J, the movable blade 52 moves toward the fixed blade 51 (rearward) (Fig. 8(a) → Fig. 8(b)). Also, when the left and right cutter drive cylinders 53 retract the output shaft 53J, the movable blade 52 moves away from the fixed blade 51 (forward) (Fig. 8(b) → Fig. 8(a)).

In Figure 7, a flat, plate-shaped fixed safety cover 58 extending horizontally in the X direction is provided in front of the fixed blade 51. The fixed safety cover 58 is positioned so as to cover part of the Y-direction movement range of the moving blade 52 from above.

In Figure 7, the lower end of the tape discharge guide 37 of the feeder base 32 is located above the space sandwiched between the fixed blade 51 and the fixed safety cover 58. Therefore, the space between the fixed blade 51 and the fixed safety cover 58 is a space through which the carrier tape CT discharged from the component supply unit 22 moves from top to bottom. This space functions as an inlet for the carrier tape CT into the cutter 50, and will be referred to below as the "carrier tape inlet 59."

In Figures 7 and 8(a) and (b), the fixed blade 51 has its edge (fixed blade edge 51E) positioned within the carrier tape inlet 59. In other words, the fixed blade 51 is in a state of being ejected horizontally relative to the space (carrier tape inlet 59) through which the carrier tape CT moves from top to bottom. On the other hand, when the moving blade 52 moves rearward and approaches the fixed blade 51, its edge (moving blade edge 52E) is positioned within the carrier tape inlet 59 (Figure 8(b)).

Figures 5 and 8(a) show the state in which the cutter drive cylinder 53 operates the output shaft 53J to retract the moving blade 52 to its fullest extent. Hereinafter, this position of the moving blade 52 will be referred to as the "most retracted position." When the moving blade 52 is in its most retracted position, the moving blade edge 52E is located below the fixed safety cover 58.

Figures 6 and 8(b) show the state in which the cutter drive cylinder 53 operates the output shaft 53J to move the moving blade 52 forward to its fullest extent. Hereinafter, this position of the moving blade 52 will be referred to as the "most forward position." When the moving blade 52 is in its most forward position, the moving blade edge 52E advances to below the fixed blade 51.

In Figure 7, a plate-shaped chip guide 61 that extends along the XZ plane is provided on the rear side of the bottom plate 44. The space between the chip guide 61 and the back plate 42 forms a chip passage 62 that extends in the Z direction, and a discharge port 63 is provided at the bottom of the chip passage 62. As shown in Figures 9 and 10, a discharge duct 11D fixed to the rear wall 11W and front wall 11J is provided below the discharge port 63. Chips discharged from the discharge port 63 are sent to the tape waste receiver 31T via the discharge duct 11D.

When the moving blade 52 moves from its most retracted position to its most advanced position, the moving blade edge 52E crosses the cutting position 50P (Figures 7 and 8(a)), which is located between the carrier tape inlet 59 and outlet 63 (more specifically, on the fixed blade edge 51E). If there is an object to be cut at the cutting position 50P at this time, the moving blade cuts the object by the relative movement of the moving blade edge 52E and the fixed blade edge 51E.

The operation of the cutter 50 to cut the object by operating the moving blade 52 is hereinafter referred to as the "cutting operation." Note that, in this embodiment, the "object to be cut" refers to the carrier tape CT that has been introduced from the component supply unit 22, via the tape discharge guide 37, and into the carrier tape inlet 59 (i.e., after the components have been removed).

After the cutter 50 performs a cutting operation and the moving blade 52 is positioned in its most forward position, the left and right cutter drive cylinders 53 retract the output shaft 53J, returning the moving blade 52 to its most rearward position (Fig. 6 → Fig. 5 and Fig. 8(b) → Fig. 8(a)). Note that the cutter drive cylinders 53 always position the moving blade 52 in its most rearward position when the carriage 21 is separated from the base 11.

In this embodiment, the carrier tape cutting device 16 (cutter 50) is located near the carrier tape inlet 59. The cutter 50 (movable blade 52) is moved by the left and right cutter drive cylinders 53, which serve as cutter drives, so that the carrier tape CT introduced through the carrier tape inlet 59 is cut at the cutting position 50P between the carrier tape inlet 59 and the outlet 63.

As shown in Figures 7 and 8(a) and (b), the tape discharge guide 37 of the feeder base 32 is located directly above the carrier tape inlet 59, so the carrier tape CT discharged from the component supply unit 22 is smoothly guided to the cutting position 50P. Furthermore, as described above, the cutter 50 of the carrier tape cutting device 16 is located near the carrier tape inlet 59, so the length by which the leading edge of the carrier tape CT cut by the cutter 50 protrudes below the feeder base 32 can be shortened. Therefore, the leading edge of the carrier tape CT does not get in the way when the cart 21 is transported or when it is mounted on another component mounting device 1.

The carrier tape CT (carrier tape CT scraps) cut into strips by the cutter 50 fall through the scrap passage 62 and are discharged from the discharge outlet 63 through the discharge duct 11D to the tape scrap receiver 31T. In this way, the component mounting device 1 of this embodiment is configured with the discharge outlet 63 and discharge duct 11D for discharging the cut carrier tape CT.

In Figure 7, a carriage stopper 64 is provided at the rear of each of the left and right side plates 43 (see also Figures 5 and 6). The left and right carriage stoppers 64 each extend upward and are designed to abut against the rear end 34T (Figure 3) of the bottom 34 of the feeder base portion 32 of the carriage 21 when the carriage 21 is inserted into the carriage attachment station 11S of the base 11, as described below.

In Figures 9 and 10, three guide rollers 70 are provided at three locations on the outer surface of each of the left and right side plates 43 (see also Figures 5 and 6). The three guide rollers 70 consist of a rear upper roller 70a, a rear lower roller 70b, and a front roller 70c. The rear upper roller 70a is located above the rear of the side plate 43, and the rear lower roller 70b is located below the rear upper roller 70a. The front roller 70c is located in front of the rear upper roller 70a.

In Figures 4, 9, and 10, guide plates 11P are installed on the inner surfaces of the left and right protrusions 11H of the base 11. Each of the left and right guide plates 11P consists of a plate-shaped member extending along the YZ plane. As shown in Figures 11 and 12(a), (b), and (c), the guide plate 11P has a rear upper guide groove 71 provided in correspondence with the rear upper roller 70a of the moving unit 39, and a rear lower guide groove 72 provided in correspondence with the rear lower roller 70b.

In FIG. 11, the rear-upper guide groove 71 has a first vertical region 71a extending in the Z direction in front of a substantially rectangular rear reference piece 73 provided on the guide plate 11P, and a first horizontal region 71b extending rearward (above the rear reference piece 73) from the top of the first vertical region 71a. The rear-upper guide groove 71 guides the movement of the rear-upper roller 70a located inside it in a direction along the YZ plane. That is, the first vertical region 71a guides the rear-upper roller 70a in the up-down direction, while the first horizontal region 71b guides it horizontally (along the Y axis). The rear vertical surface KY1 of the first horizontal region 71b of the rear-upper guide groove 71 limits the movement range of the rear-upper roller 70a in the direction along the Y axis. The lower edge of the first horizontal region 71b, i.e., the upper surface KZ1 of the rear reference piece 73, guides the movement of the rear-upper roller 70a in the direction along the Y axis.

In Figure 11, the rear lower guide groove 72 has a second vertical region 72a extending in the Z direction and a second horizontal region 72b extending rearward from the top of the second vertical region 72a. The rear lower guide groove 72 guides the movement of the rear lower roller 70b located inside it in a direction along the YZ plane. That is, the first vertical region 72a guides the rear lower roller 70b in the up-down direction, and the first horizontal region 72b guides it horizontally (along the Y axis).

In Figure 11, a front reference piece 74 is provided at the front end of the guide plate 11P. A vertical surface KY3 is formed above and behind the front reference piece 74 of the guide plate 11P. The front surface 74a of the front reference piece 74 guides the vertical movement of the front roller 70c, and the top surface KZ3 guides it horizontally (along the Y-axis). The vertical surface KY3 limits the range of movement of the front roller 70c along the Y-axis.

The moving unit 39 can be moved from the position shown in FIG. 12(a) (referred to as the "first position") to the position shown in FIG. 12(b) (referred to as the "intermediate position"), and then to the position shown in FIG. 12(c) (referred to as the "second position"). Conversely, it can also be moved from the second position to the intermediate position and then to the first position.

When the moving part 39 is in the first position, the rear upper roller 70a abuts against the lower edge of the first vertical region 71a of the rear upper guide groove 71, and the rear lower roller 70b abuts against the lower edge of the second vertical region 72a of the rear lower guide groove 72. The front roller 70c is located in front of the front reference piece 74 (Figure 12(a)). Furthermore, when the moving part 39 is in the second position, the rear upper roller 70a is located in the first horizontal region 71b of the rear upper guide groove 71 and abuts against the upper surface KZ1 of the rear reference piece 73, and the front roller 70c abuts against the upper surface KZ3 of the front reference piece 74. The rear lower roller 70b is located in the second horizontal region 72b of the rear lower guide groove 72 (Figure 12(c)).

When the moving part 39 moves from the first position to the second position, the moving part 39 moves upward to reach the intermediate position, then moves horizontally (rearward) to reach the second position. When the moving part 39 moves from the second position to the first position, the moving part 39 moves horizontally (forward) to reach the intermediate position, then moves downward to reach the first position.

When the moving unit 39 moves between the first position and the second position as described above, the three guide rollers 70 provided on the moving unit 39 are guided by left and right guide plates 11P provided on the left and right protrusions 11H of the base 11, and by rear reference pieces 73 and front reference pieces 74 provided on each of these left and right guide plates 11P. In other words, the left and right guide plates 11P and the rear reference pieces 73 and front reference pieces 74 provided on each of these left and right guide plates 11P form moving unit guide means 75 (Figure 11) when the moving unit 39 moves relative to the base 11.

In this embodiment, the moving unit drive mechanism 40 is provided between a pair of protruding portions 11H of the base 11, and the pair of protruding portions 11H are provided with a moving unit guide means 75 that guides the moving unit 39 moved by the moving unit drive mechanism 40.

In Figures 5, 6, and 7, left and right protrusions 76 are provided on the back plate 42 of the moving section 39, protruding rearward. A driven roller 77 with its axis of rotation in the X direction is attached to the tip of each of the left and right protrusions 76.

In Figures 9 and 10, the moving unit drive mechanism 40 is composed of an L-shaped bracket 81, a swinging member 82, a lever drive cylinder 83, a lever support 84, and a drive lever 85 on the left and right sides. The L-shaped bracket 81 is attached to the lower rear surface of the rear wall 11W of the base 11, and has a portion that extends horizontally toward the rear. The front end of the swinging member 82 is pivotally connected to the portion that extends horizontally toward the rear of the L-shaped bracket 81, and is capable of swinging freely along the YZ plane. The lever drive cylinder 83 is attached to the swinging member 82 and is located on the rear side of the rear wall 11W. The lever drive cylinder 83 is composed of an air cylinder, and its output shaft, the operating rod 83R, faces upward.

In Figures 9 and 10, the lever support portion 84 is provided above the L-shaped metal fitting 81 on the rear wall 11W. A drive lever 85 is pivotally connected to the tip of the lever support portion 84 by a pivot shaft 84J extending in the X direction. The rear end of the drive lever 85 is pivotally connected to the upper end of the operating rod 83R of the lever drive cylinder 83 by a connecting shaft 86 extending in the X direction. Therefore, when the lever drive cylinder 83 moves the operating rod 83R back and forth, the drive lever 85 swings around the pivot shaft 84J, raising and lowering the front end.

More specifically, when the lever drive cylinder 83 advances the operating rod 83R, the drive lever 85 swings around the pivot shaft 84J in the direction of lowering the front end, and when the operating rod 83R is fully advanced, the drive lever 85 assumes a position in which its front end is fully lowered (Figure 9). Furthermore, when the lever drive cylinder 83 retracts the operating rod 83R, the drive lever 85 swings in the direction of raising the front end, and when the operating rod 83R is fully retracted, the drive lever 85 assumes a position in which its front end is fully raised (Figure 10).

In Figures 9 and 10, an opening 11K penetrating in the thickness direction (Y direction) is provided in the middle of the rear wall 11W of the base 11. This allows the protrusion 76 and driven roller 77 of the moving part 39 to move back and forth along the rear wall 11W through the opening 11K.

In Figures 9 and 10, the front end of the drive lever 85 is shaped like a fork. The front end (the fork-shaped portion) of each of the left and right drive levers 85 engages from behind with the left and right driven rollers 77, respectively, provided on the rear side of the moving section 39 (Figure 9).

When the carriage 21 is separated from the base 11 (when the carriage 21 is not inserted into the carriage attachment station 11S), the lever drive cylinder 83 moves the operating rod 83R forward to its fullest extent (Figure 9), and the drive lever 85 is in a position with its front end lowered to its fullest extent. In this state, the moving part 39 is in the first position (Figure 12(a)), and the moving part 39 is located close to the front wall 11J from the rear (Figure 13(a)).

When the lever drive cylinder 83 moves the operating rod 83R backward from its fully advanced position, the drive lever 85 swings in the direction of raising the front end. As a result, the driven roller 77, which is engaged with the front end (the fork-shaped portion) of the drive lever 85, is lifted by the drive lever 85, and the moving part 39 rises from the first position to the intermediate position (Figure 12(a) → Figure 12(b)).

As the lever drive cylinder 83 further retracts the operating rod 83R, the drive lever 85 further raises its front end. As a result, the moving part 39 is pulled by the drive lever 85 and moves rearward from the intermediate position (FIG. 12(b) → FIG. 12(c)). With the operating rod 83R of the lever drive cylinder 83 fully retracted, the moving part 39 is held in the second position (FIG. 12(c)). The moving part 39 held in the second position is positioned close to the rear wall 11W from the front (FIG. 10 and FIG. 13(b)).

In this manner, the component mounting device 1 in this embodiment comprises a base 11 equipped with a work head 14 that mounts components supplied by the component supply units 22 onto the board KB, and a carriage 21 that is detachable from the base 11 and has a feeder base 32 that holds a plurality of component supply units 22 in an array. The base 11 is also provided with a moving unit 39 that incorporates a carrier tape cutting device 16, and a moving unit drive mechanism 40 that drives the moving unit 39.

Here, we will explain the transmission path of the power air used to drive the actuators in the component mounting device 1. Figure 14 shows the transmission path of the power air when the carriage 21 is attached to the base 11.

In Figure 14, the power air transmission pipe (referred to as the "first power air transmission pipe DK1") that supplies power air to the left and right cutter drive cylinders 53 consists of a first base-side pipe 91, a relay pipe 92, and a second base-side pipe 93, with the second base-side pipe 93 connected to the power air supply unit DA via a valve device VL. The first base-side pipe 91 is connected to the base 11, the second base-side pipe 93 is connected to the base 11, and the relay pipe 92 is connected to the carriage 21. The valve device VL is provided on the base 11, and its operation is controlled by a control unit 11CT (Figure 2) provided within the base 11. The power air supply unit DA is installed outside the component mounting device 1.

In FIG. 14, the first base-side pipe 91 and relay pipe 92 of the first power air transmission pipe DK1 are connected by connecting the first coupler socket 94a on the base 11 side to the first coupler plug 95a on the carriage 21 side, and the relay pipe 92 and first base-side pipe 91 are connected by connecting the second coupler plug 95b on the carriage 21 side to the second coupler socket 94b on the base 11 side. In other words, the configuration of the first power air transmission pipe DK1 is as follows: first base-side pipe 91 - coupler (first coupler socket 94a - first coupler plug 95a) - relay pipe 92 - coupler (second coupler plug 95b - second coupler socket 94b) - second base-side pipe 93.

In this embodiment, the cutter 50 of the carrier tape cutting device 16 is operated by supplying power air as energy to the cutter drive cylinder 53 through the first power air transmission pipe DK1 configured as described above. Here, the first power air transmission pipe DK1 serves as an energy transmission path that transmits energy to drive the cutter drive cylinder 53, which is an actuator provided on the base 11 side, through the carriage 21 side from the base 11 side.

In this way, in the first power air transmission pipe DK1 that supplies power air to the left and right cutter drive cylinders 53, the intermediate section TB consisting of the first coupler plug 95a, relay pipe 92, and second coupler plug 95b is provided on the carriage 21 side (Figure 14). Therefore, when the carriage 21 is not attached to the base 11, the intermediate section TB is separated from the first power air transmission pipe DK1, and the first coupler plug 95a and first coupler socket 94a, and the second coupler plug 95b and second coupler socket 94b are both disconnected, rendering the cutter drive cylinder 53 inoperable.

For this reason, in this embodiment, the carriage 21 must be attached to the base 11 in order to operate the cutter drive cylinder 53. In other words, when the carriage 21 is separated from the base 11, the cutter 50 of the carrier tape cutting device 16 will not be driven.

The above-described configuration in which "when the carriage 21 is separated from the base 11, the intermediate section TB provided on the carriage 21 side is separated from the first power air transmission pipe DK1 (cutting off the first power air transmission pipe DK1), thereby restricting the cutting operation of the carrier tape cutting device 16" functions as a disabling means that disables the operation of the carrier tape cutting device 16 when the carriage 21 is separated from the base 11. By providing the component mounting device 1 in this embodiment with such a disabling means, the safety of the operator is ensured even when the cutter 50 of the carrier tape cutting device 16 is within the operator's reach when the carriage 21 is separated from the base 11.

In FIG. 14, the power air transmission pipe (referred to as the "second power air transmission pipe DK2") that supplies power air to the component supply unit 22 attached to the feeder base 32 consists of a pipe socket 101, multiple individual pipes 102, a manifold 103, a main pipe 104, and a third base-side pipe 105, with the third base-side pipe 105 connected to the power air supply unit DA via a valve device VL. The pipe socket 101, multiple individual pipes 102, the manifold 103, and the main pipe 104 are provided on the cart 21, and the third base-side pipe 105 is provided on the base 11. The multiple pipe sockets 101 provided on the cart 21 are connected to pipe plugs 22a that the component supply unit 22 is equipped with to receive a supply of power air.

In Figure 14, the main pipe 104 and third base-side pipe 105 of the second power air transmission pipe DK2 are connected by connecting the third coupler plug 95c on the carriage 21 side and the third coupler socket 94c on the base 11 side. In other words, the second power air transmission pipe DK2 is configured as follows: pipe socket 101 - multiple individual pipes 102 - manifold 103 - main pipe 104 - coupler (third coupler plug 95c - third coupler socket 94c) - third base-side pipe 105.

In this embodiment, the component supply unit 22 is operated by supplying power air as energy to the feeder base 32 through the second power air transmission piping DK2 configured as described above. Here, the second power air transmission piping DK2 serves as an energy transmission path for transmitting energy to drive the component supply unit 22, which is a device provided on the trolley 21 side.

In this embodiment, one of the couplers constituting the second power air transmission pipe DK2 (third coupler plug 95c) is provided on the carriage 21 side, and the other coupler (third coupler socket 94c) is provided on the base 11 side (Figure 14). Therefore, when the carriage 21 is not attached to the base 11, the couplers are separated. Therefore, even if the component supply unit 22 is attached to the feeder base portion 32 of the carriage 21, the component supply unit 22 will not operate unless the carriage 21 is attached to the base 11.

In Figure 14, the power air transmission pipe that supplies power air to the left and right lever drive cylinders 83 provided on the base 11 consists only of the fourth base-side pipe 106 provided on the base 11 side. Therefore, power air can be supplied to the left and right lever drive cylinders 83 even when the carriage 21 is not attached to the base 11, and the operation of moving the moving unit 39 between the first position and the second position by the left and right lever drive cylinders 83 can be performed regardless of whether the carriage 21 is attached to the base 11 or not.

10 and 13(a) and (b), a safety stopper 11T extends upward from the top of the front wall 11J that constitutes the moving section 39. When the carriage 21 is separated from the base 11 and the moving section 39 is in the first position (FIGS. 9 and 12(a)), the safety stopper 11T passes through the stopper insertion hole 44H from below. As mentioned above, when the carriage 21 is separated from the base 11, the moving blade 52 is in the most retracted position. The safety stopper 11T mechanically prevents the moving blade 52 from advancing toward the fixed blade 51 by positioning its tip just behind the connecting portion 57 that connects to the moving blade 52 in the most retracted position (FIG. 13(a)). The position in which the safety stopper 11T passes through the stopper insertion hole 44H from below and prevents the moving blade 52 from moving is hereinafter referred to as the "blocking position."

As described above, when the safety stopper 11T is in the blocking position, the movement of the movable blade 52 is mechanically blocked. Therefore, when the safety stopper 11T is in the blocking position, the cutter 50 will not perform a cutting operation even if there is a malfunction or control abnormality in the cutter drive cylinder 53, ensuring the safety of the operator. Furthermore, after the carriage 21 is attached to the base 11, when the movable unit 39 is moved from the first position to the second position by the lever drive cylinder 83 (FIG. 12(a) → FIG. 12(b) → FIG. 12(c)), the safety stopper 11T comes out of the stopper insertion hole 44H (moves below the bottom plate 44 of the movable unit 39) in the process, and the movement of the movable blade 52 is released from the blocked state (FIG. 13(b) and FIG. 10).

In this way, the configuration in which "when the cart 21 is separated from the base 11, the safety stopper 11T is positioned in the blocking position, thereby blocking the movement of the moving blade 52" functions as a disabling means (referred to as a "second disabling means") that disables the operation of the carrier tape cutting device 16 when the cart 21 is separated from the base 11, similar to the disabling means (referred to as a "first disabling means") described above. Because the component mounting device 1 in this embodiment is equipped with such a second disabling means, the safety of the operator is ensured even when the cutter 50 of the carrier tape cutting device 16 is within the operator's reach when the cart 21 is separated from the base 11.

In Figures 7 and 13(a) and (b), a movable safety cover 111 is provided within the chip passage 62 of the moving part 39. The movable safety cover 111 is a plate-shaped member that extends generally along the XZ plane and is disposed on the front side of the back plate 42. The movable safety cover 111 changes its position relative to the fixed blade 51 when the moving part 39 is in the first position and when it is in the second position.

That is, when the carriage 21 is not attached to the carriage attachment station 11S (the moving unit 39 is in the first position), the movable safety cover 111 is positioned in a position (protecting position) with its upper end positioned in front of the fixed blade 51 to cover the fixed blade edge 51E (Figures 13(a) and 15). On the other hand, when the carriage 21 is inserted into the base 11 (the moving unit 39 is in the second position), the movable safety cover 111 retreats from the protecting position to a position (exposing position) that exposes the fixed blade edge 51E (Figures 13(b) and 16). When in the exposing position, the movable safety cover 111 is positioned along the front surface of the back plate 42 below the fixed blade 51 so as not to interfere with the movement of the carrier tape CT passing through the carrier tape inlet 59 (Figure 13(b)).

Now, using Figures 15 and 16, we will explain the mechanism that moves the movable safety cover 111 between the protected position and the exposed position. As shown in Figures 15 and 16, a plate-shaped guided portion 112 extends rearward from the lower part of the movable safety cover 111. A safety cover guide groove 113 that extends vertically with its lower end bent forward is formed on the back plate 42 of the moving portion 39. Two safety cover guide pins 114 are provided on the guided portion 112, lined up vertically. These two safety cover guide pins 114 are positioned within the safety cover guide groove 113 and are movable along the safety cover guide groove 113.

As shown in Figures 15 and 16, a guide groove 115 extending in the vertical direction is provided in the rear wall 11W of the carriage 21. A rod-shaped link rod 116 extending diagonally downward from the back plate 42 side toward the rear wall 11W side is disposed between the back plate 42 of the moving section 39 and the rear wall 11W of the base 11. The front end (upper end) of the link rod 116 is pivotally connected to the upper of the upper and lower safety cover guide pins 114. Meanwhile, the rear end (lower end) of the link rod 116 is pivotally connected to a guide pin 117 provided in the guide groove 115 (and therefore movable in the vertical direction along the guide groove 115).

As shown in Figure 15, when the moving part 39 is in the first position and the moving part 39 as a whole is positioned close to the front wall 11J (Figure 9), the movable safety cover 111 is pushed up by the link rod 116, which has its lower end guide pin 117 positioned at the lower end of the guide groove 115 (Figure 15). When the movable safety cover 111 is in this position, both the upper and lower safety cover guide pins 114 are located in the middle portion (vertically extending portion) of the safety cover guide groove 113. Then, due to the attachment positions of the upper and lower safety cover guide pins 114 relative to the movable safety cover 111, the upper end of the movable safety cover 111 is tilted forward, and it is in a protective position covering the fixed blade edge 51E.

On the other hand, as shown in Figure 16, when the moving part 39 is in the second position and the moving part 39 as a whole is close to the rear wall 11W, the back plate 42 is moved higher than when the moving part 39 is in the first position. At this time, the upper and lower safety cover guide pins 114 are positioned lower within the safety cover guide groove 113 due to the weight of the movable safety cover 111 (Figure 16). In this state, due to the relationship between the inclination of the lower part of the safety cover guide groove 113 from the vertical direction and the attachment position of the upper and lower safety cover guide pins 114 relative to the movable safety cover 111, the movable safety cover 111 is positioned below the fixed blade 51 and is aligned with the front surface of the back plate 42, placing it in an exposed position that exposes the fixed blade edge 51E (Figure 16).

As described above, the component mounting device 1 in this embodiment is configured to include a moving unit 39 that is mounted on the base 11 in a manner that allows it to be raised and lowered, and a movable safety cover 111 whose position is changed by the moving unit 39. The movable safety cover 111 is movable between a protective position that covers the edge of one of the fixed blades 51 of the cutter 50 (fixed blade edge 51E) and an exposed position that does not cover the fixed blade edge 51E. When the carriage 21 is separated from the base 11, the movable safety cover 111 is positioned in the protective position, and when the moving unit 39 rises relative to the base 11, the movable safety cover 111 moves from the protective position to the exposed position. When the carriage 21 is separated from the base 11, the edge of the cutter 50 (fixed blade edge 51E) is protected by the movable safety cover 111, ensuring the safety of the operator.

In Figures 13(a) and (b), horizontal support surfaces 121 are formed at the middle and front ends in the Y direction on the top surface of each of the left and right side plates 43. An engagement pin 122 protrudes upward from each support surface 121 (see also Figures 5 and 6).

In Figures 5 and 6, a connection section 130 is provided between the left and right front plates 41 of the moving section 39. As shown in Figures 17(a), (b) and 18(a), (b), the connection section 130 includes a base 131, left and right rail sections 132, a floating member 133, an electrical connector socket 134, the three coupler sockets 94 mentioned above (first coupler socket 94a, second coupler socket 94b, third coupler socket 94c), a shutter 136, and a shutter drive roller 137.

In Figures 17(a), (b), 18(a), (b), and 19(a), (b), the base 131 is a plate-shaped member extending along the XY plane and is fixed to the bottom plate 44 of the moving section 39. The left and right rail sections 132 are disposed on the left and right sides of the base 131, and each extend in the Y direction.

In Figures 17(a), (b), 18(a), (b), and 19(a), (b), the floating member 133 consists of a plate-shaped member that extends along the XY plane. Four support posts 138 that are erected on the base 131 penetrate the four corners of the floating member 133 in the thickness direction. A spring member 139 is inserted into each of the four support posts 138, and these four spring members 139 support the four corners of the floating member 133 from below. In this way, the floating member 133 is elastically supported by the four spring members 139, and is in a so-called floating state.

In Figures 17(a) and 17(b) and 18(b), the three coupler sockets 94 (first coupler socket 94a, second coupler socket 94b, and third coupler socket 94c) on the moving section 39 side (base 11 side) are attached to the floating member 133 with their openings facing upward. The three coupler sockets 94 are lined up in the X direction in the order of first coupler socket 94a, third coupler socket 94c, and second coupler socket 94b. The first base-side piping 91 is connected to the first coupler socket 94a, and the second base-side piping 93 is connected to the second coupler socket 94b. The third base-side piping 105 is connected to the third coupler socket 94c (Figures 19(a) and 19(b)).

In Figures 17(a) and 17(b) and 18(b), the electrical connector socket 134 is also attached to the floating member 133 with its opening facing upward. The electrical connector socket 134 is connected to the control unit 11CT and a power supply unit (not shown) via wiring 140 (Figures 17(a) and 17(b)) that supplies power and transmits signals.

In Figures 18(a) and 18(b) and Figures 19(a) and 19(b), positioning pin guides 141 are provided on both the left and right sides of the floating member 133. Each positioning pin guide 141 has a guide hole 142 formed through it in the Z direction.

In Figure 18(b), the shutter 136 comprises a shutter main body 136a made of a plate-shaped member that extends entirely within the XY plane, and left and right legs 136b that extend downward from both left and right ends of the front end of the shutter main body 136a. The left and right legs 136b are slidable in the Y direction on the left and right rails 132, and the entire shutter 136 is movable in the Y direction relative to the base 131.

The shutter 136 moves in the Y direction to switch between a shielding position (Figures 17(a) and 18(a)) and a retracted position (Figures 17(b) and 18(b)). Here, the "shielding position" is a position in which the shutter main body 136a covers the three coupler sockets 94 and the electrical connector socket 134 (and therefore the openings of these sockets) from above. The "retracted position" is a position in which the shutter retracts rearward from the shielding position, exposing the three coupler sockets 94 and the electrical connector socket 134.

In Figures 18(a) and (b), the shutter drive roller 137 is mounted on the outer surface of one of the left and right legs 136b so as to be rotatable around an axis extending in the X direction. A shutter-side pin 143 that protrudes outward in the X direction is mounted on the other of the left and right legs 136b, and a base-side pin 144 that protrudes in the X direction is mounted on the side of the base 131 (the side on which the shutter-side pin 143 is mounted). The shutter-side pin 143 and base-side pin 144 are aligned in the Y direction, and a shutter spring 145 made of a tension spring is attached between the shutter-side pin 143 and base-side pin 144.

When no external force is acting on the shutter drive roller 137, the shutter 136 is pulled forward by the elastic force of the shutter spring 145 and is positioned in the blocking position (Figures 17(a) and 18(a)). On the other hand, when the shutter 136 is positioned in the blocking position and the shutter drive roller 137 is pressed backward against the elastic force of the shutter spring 145, the shutter 136 moves backward and is positioned in the retracted position (Figures 17(b) and 18(b)).

In Figures 17(a) and 17(b) and Figures 20(a) and 20(b), four downward-opening engagement pin insertion holes 151 are provided on the underside of the bottom 34 of the feeder base portion 32, on the front, rear, left and right sides. In addition to the three coupler plugs 95 (first coupler plug 95a, second coupler plug 95b, third coupler plug 95c) mentioned above, an electrical connector plug 152, a shutter drive pin 153, and left and right positioning pins 154 are also provided on the underside of the bottom 34, each extending downward (see also Figures 19(a) and 19(b)).

In Figures 19(a) and (b), the three coupler plugs 95 are lined up in the X direction in the order of first coupler plug 95a, third coupler plug 95c, and second coupler plug 95b, and are positioned between the left and right positioning pins 154. The main pipe 104 is connected to the third coupler plug 95c and extends above the bottom 34. The relay pipe 92 connecting the first coupler plug 95a and second coupler plug 95b is positioned above the bottom 34.

In Figures 20(a) and (b), the front end of the unit mounting section 36 is provided with the aforementioned multiple piping sockets 101, opening forward (towards the component supply unit 22). The front end of the unit mounting section 36 is also provided with a wiring socket 161, which is part of the circuit (electrical circuit) that supplies power to the component supply unit 22 and transmits signals, opening forward. The component supply unit 22 mounted to the unit mounting section 36 is provided with a piping plug 22a for introducing power air and a wiring plug 22b for supplying electricity, each of which protrudes rearward (towards the cart 21).

In Figures 20(a) and (b), the support portion 35 of the feeder base portion 32 contains the aforementioned manifold 103 and a relay board 162 that forms part of the electrical circuit. The manifold 103 is connected to three coupler plugs 95 via main piping 104, and is connected to a piping socket 101 via individual piping 102. The relay board 162 is connected to the electrical connector plug 152 via a main cable 163, and is connected to the wiring socket 161 via individual wiring 164.

Next, the procedure for attaching the cart 21 to the base 11 will be described. When attaching the cart 21 to the base 11, first, the component supply unit 22 is attached to the cart 21 that is separated from the base 11.

As mentioned above, when the carriage 21 is separated from the base 11 (Figure 21), the lever drive cylinder 83 of the moving unit drive mechanism 40 has the operating rod 83R fully advanced (Figure 9). In this state, the three coupler plugs 95, which are carriage-side couplers, and the three coupler sockets 94, which are base-side couplers, on the first power air transmission pipe DK1 and the second power air transmission pipe DK2 are separated (Figures 17(a) and 19(a)). The electric connector plug 152, which is the carriage-side connector, and the electric connector socket 134, which is the base-side connector, are also separated. Therefore, due to the action of the first disabling means mentioned above, the cutter drive cylinder 53 of the carrier tape cutting device 16 does not operate, and the cutter 50 is unable to perform cutting operations.

When the carriage 21 is separated from the base 11 (Figure 21), the shutter 136 of the connection part 130 is in the shielding position. Therefore, the three coupler sockets 94 and electrical connector socket 134 attached to the floating member 133, as well as the left and right positioning pin guides 141 (left and right guide holes 142), are covered by the shutter 136 (Figures 17(a) and 18(b)).

When the carriage 21 is separated from the base 11, the moving part 39 is in the first position (FIGS. 9 and 12(a)), and the safety stopper 11T is inserted into the stopper insertion hole 44H of the moving part 39 and is in the blocking position (FIG. 13(a)). Therefore, due to the action of the second disabling means described above, the moving blade 52 of the carrier tape cutting device 16 cannot move toward the fixed blade 51, and the cutter 50 is unable to perform cutting operations. Furthermore, the movable safety cover 111 is in a state where it covers the fixed blade edge 51E (FIGS. 13(a) and 15).

When attaching the component supply unit 22 to the cart 21, the worker inserts the component supply unit 22 horizontally (in the Y direction) from the rear into the unit mounting portion 36 of the feeder base 32 (Fig. 20(a) → Fig. 20(b)). This causes the piping plug 22a on the component supply unit 22 to fit into the piping socket 101 on the feeder base 32 from the front, and the wiring plug 22b on the component supply unit 22 to fit into the wiring socket 161 on the feeder base 32 from the front (Fig. 20(b)).

Once the required number of component supply units 22 are attached to the cart 21, the worker mounts the cart 21 on the base 11. To do this, the worker first inserts the cart 21 with the component supply units 22 attached into the cart mounting station 11S on the base 11 (Figure 21 → Figure 22). At this time, the cart base 31 is guided by the cart guide portions 11G (guide rollers 11R) provided on the left and right protrusions 11H of the base 11, allowing it to smoothly enter the cart mounting station 11S.

As the cart 21 is inserted into the cart attachment station 11S, the rear end 34T (Figure 17(a)) of the bottom 34 of the feeder base 32 abuts against the cart stopper 64 of the moving section 39 from the front (Figure 17(a) → Figure 17(b)). When the operator senses that the bottom 34 of the feeder base 32 has abutted against the cart stopper 64 of the moving section 39, the operator stops inserting the cart 21.

From the time the carriage 21 begins to be inserted into the base 11 until the rear end 34T of the bottom 34 abuts the moving section 39, the feeder base 32 moves horizontally (rearward) above the moving section 39. Then, by the time the rear end 34T of the bottom 34 of the feeder base 32 abuts the carriage stopper 64 of the moving section 39, the shutter drive pin 153 provided on the feeder base 32 abuts the shutter drive roller 137 provided on the shutter 136 from the front, pressing the entire shutter 136 rearward against the elastic force of the shutter spring 145.

The shutter 136 is pressed rearward, moving from the shielding position to the retracted position (Fig. 17(a) → Fig. 17(b) and Fig. 18(a) → Fig. 18(b)). This exposes the three coupler sockets 94 (first coupler socket 94a, second coupler socket 94b, third coupler socket 94c), electrical connector socket 134, and left and right guide holes 142 that were previously covered by the shutter 136 (Fig. 18(b)).

In this embodiment, when the carriage 21 approaches the base 11, the shutter drive pin 153, which serves as a drive member provided on the feeder base portion 32 of the carriage 21, moves the shutter 136 from the shielding position to the retracted position. Therefore, when the carriage 21 is separated from the base 11, one of the couplers (the three coupler sockets 94 that are the base-side couplers), one of the electrical connectors (the electrical connector socket 134), and the left and right guide holes 142 that were covered by the shutter 136 are exposed upward.

When the rear end 34T of the feeder base 32 abuts against the carriage stopper 64 of the moving unit 39, the three coupler plugs 95 on the carriage 21 are positioned above the three coupler sockets 94 exposed by the shutter 136 being in the retracted position. The electrical connector plug 152 on the carriage 21 is positioned above the electrical connector socket 134 (FIGS. 17(a) and 19(a)), and the left and right positioning pins 154 on the carriage 21 are positioned above the left and right guide holes 142 (FIG. 19(a)). Furthermore, the four engagement pin insertion holes 151 on the front, rear, left and right of the bottom 34 of the feeder base 32 are positioned above the four engagement pins 122 on the front, rear, left and right of the moving unit 39 (FIG. 17(a)).

When the operator has finished inserting the carriage 21 by the bottom 34 of the feeder base 32 abutting against the carriage stopper 64 of the moving unit 39, the operator operates the valve device VL via the control unit 11CT by performing a predetermined operation on the operating unit (not shown). This causes power air from the power air supply unit DA to be supplied to the left and right lever drive cylinders 83 through the fourth base-side piping 106, and the left and right lever drive cylinders 83 operate to retract their respective operating rods 83R (Figures 22 → 23).

As a result, the operating rod 83R of the lever drive cylinder 83 retracts, causing the drive lever 85 to pivot in the front-end-up direction. The driven roller 77, engaged with the front end of the drive lever 85, rises, and the moving unit 39 is lifted by the drive lever 85 (Fig. 22 → Fig. 23). When the operating rod 83R of the lever drive cylinder 83 retracts to its fullest extent and the drive lever 85 reaches its full front-end-up position, the moving unit 39 is held in the second position (Fig. 23 and Fig. 13(b)). Note that as the moving unit 39 moves from the first position to the second position in this manner, the lower end of the tape discharge guide 37 of the feeder base 32 is received by the upper end of the carrier tape inlet 59 of the moving unit 39, which has been lifted by the drive lever 85 (Fig. 22 → Fig. 23).

When the moving unit 39 is positioned in the second position, it moves the rear upper roller 70a to the upper surface KZ1 of the rear reference piece 73 and moves the front roller 70c to the upper surface KZ3 of the front reference piece 74. As a result, the rear upper roller 70a is supported from below by the upper surface KZ1, and the front roller 70c is supported from below by the upper surface KZ1. Therefore, the moving unit 39 is positioned in the Z direction relative to the guide plate 11P. Furthermore, when the moving unit 39 is positioned in the second position, it abuts the rear upper roller 70a from the front against the vertical surface KY1 in the rear upper guide groove 71. Therefore, the moving unit 39 is also positioned in the Y direction relative to the guide plate 11P. In this embodiment, the upper surfaces KZ1 and KZ3 serve as Z direction reference surfaces for positioning the moving unit 39 in the height direction, and the vertical surface KY1 serves as a Y direction reference surface for positioning the moving unit 39 in the horizontal direction (along the Y axis).

Before being lifted by the drive lever 85 and held in the second position, the moving unit 39 supports and lifts the feeder base unit 32 from below with the four support surfaces 121 in contact with the underside of the feeder base unit 32. As a result, the feeder base unit 32 is aligned in the height direction with respect to the base 11, and the carrier tape cutting device 16 is also aligned in the height direction with respect to the feeder base unit 32.

As described above, when the four support surfaces 121 of the moving part 39, which has been lifted by the drive lever 85, come into contact with the underside of the feeder base part 32, the four engagement pins 122 provided on those four support surfaces 121 engage from below with four engagement pin insertion holes 151 provided on the underside of the feeder base part 32. As a result, the feeder base part 32 is lifted by the moving part 39 while being aligned with the moving part 39.

In other words, in this embodiment, the support surface 121 provided on the moving section 39 has the function of supporting the feeder base section 32 from below, and the engagement pin 122 provided on the support surface 121 functions as an engagement section that aligns the feeder base section 32 horizontally. Furthermore, the engagement pin insertion hole 151 provided in the bottom of the feeder base section 32 serves as an engaged section that engages with the engagement pin 122 that serves as the engagement section. In this manner, in this embodiment, the moving section 39 is provided with a side plate 43 as a support member that has the support surface 121 that supports the feeder base section 32 from below and the engagement pin 122 that serves as an engaging section that aligns the feeder base section 32 horizontally, and the bottom 34 of the feeder base section 32 is provided with an engagement pin insertion hole 151 that serves as an engaged section that engages with the engagement pin 122.

In this way, the component mounting device 1 in this embodiment is arranged so that the moving unit 39 is allowed to move up and down relative to the base 11, and the moving unit drive mechanism 40 moves the moving unit 39 upward when the carriage 21 is attached to the base 11. When the moving unit 39 moves upward, it lifts and holds the feeder base 32, so that the feeder base 32 is aligned with the base 11, and the carrier tape cutting device 16 is aligned with the feeder base 32. This makes it easy to align the feeder base 32 with the base 11 and the carrier tape cutting device 16 with the feeder base 32, which are necessary when attaching the carriage 21 to the base 11.

Conventionally, when attaching the cart 21 to the base 11, the height of the feeder base 32 was aligned with the base 11 by lowering the lifted feeder base 32 and bringing it into contact with the top surface of the base 11. This created the risk of the component supply unit 22 attached to the feeder base 32 interfering with the work head 14. However, in this embodiment, the height of the feeder base 32 is aligned with the base 11 by lifting the feeder base 32, eliminating the above-mentioned risk.

As described above, while the moving unit 39 is lifted by the drive lever 85 and positioned in the second position, the left and right positioning pins 154 protruding downward from the bottom 34 of the feeder base unit 32 are inserted from above into the left and right guide holes 142 provided in the floating member 133 of the connection unit 130. Then, the three coupler plugs 95 protruding downward from the bottom 34 of the feeder base unit 32 are fitted from above into the three coupler sockets 94 provided in the floating member 133 of the connection unit 130 (Figures 19(a) → 19(b) and 24(a) → 24(b)).

As a result, the intermediate section TB of the first power air transmission pipe DK1 located on the carriage 21 side (the section from the first coupler plug 95a to the relay pipe 92 to the second coupler plug 95b) is connected to the other section of the first power air transmission pipe DK1 (the section on the base 11 side). This releases the restriction imposed by the first disabling means, allowing power air to be transmitted to the cutter drive cylinder 53 through the first power air transmission pipe DK1, and enabling the carrier tape cutting device 16 to operate.

Also, at approximately the same time that the three coupler plugs 95 mate with the three coupler sockets 94 from above, the electrical connector plug 152 provided on the bottom 34 of the feeder base 32 mates with the electrical connector socket 134 provided on the floating member 133 of the connection portion 130 from above (Fig. 19(a) → Fig. 19(b) and Fig. 24(a) → Fig. 24(b)). This enables the supply of power and the transmission of signals from the base 11 to the component supply unit 22, enabling the component supply unit 22 to operate.

In this embodiment, as the moving section 39 approaches the bottom 34 of the feeder base section 32, the carriage-side couplers (three coupler plugs 95) and base-side couplers (three coupler sockets 94) of the first power air transmission pipe DK1 and the second power air transmission pipe DK2 are connected. At the same time, the carriage-side connector (electrical connector plug 152) and base-side connector (electrical connector socket 134) in the electrical circuit that transmits power and signals to the component supply unit 22 are connected.

As mentioned above, the floating member 133, on which the coupler socket 94 and electrical connector socket 134 are mounted, is elastically supported by multiple spring members 139 and is in a floating state. Therefore, even if the axes of the coupler plug 95 and coupler socket 94 or the axes of the electrical connector plug 152 and electrical connector socket 134 are slightly misaligned, the spring members 139 are compressed and the floating member 133 sinks, connecting the coupler and electrical connector with appropriate pressure. In addition, the horizontal position of the floating member 133 can be finely adjusted, ensuring a secure connection between the coupler and electrical connector.

As described above, while the moving part 39 is lifted by the drive lever 85 and positioned in the second position, the safety stopper 11T, which had been in the blocking position until then, comes out of the stopper insertion hole 44H, and the restriction on movement of the moving blade 52 by the second disabling means is released. Furthermore, the movable safety cover 111 moves from the protective position in which it covers the fixed blade edge 51E to the exposed position in which it exposes the fixed blade edge 51E, making the cutter 50 usable.

Next, we will explain how to separate the cart 21 from the base 11. To separate the cart 21 from the base 11, the worker operates the valve device VL from the operating unit (not shown) mentioned above to activate the left and right lever drive cylinders 83, and once the operating rod 83R has moved forward to its maximum extent, the cart 21 is pulled out from the base 11.

The moving unit 39 moves from the second position to the first position (Fig. 23 → Fig. 22) while the operating rods 83R of the left and right lever drive cylinders 83 are fully advanced, and during this time the four support surfaces 121 of the moving unit 39 move downward away from the underside of the feeder base unit 32, releasing the feeder base unit 32 from its lifted position by the moving unit 39. Furthermore, while the moving unit 39 moves from the second position to the first position, the carriage-side coupler and base-side coupler separate (Fig. 19(b) → Fig. 19(a) and Fig. 20(b) → Fig. 20(a)), rendering the cutter drive cylinder 53 inoperable (first disabling means). Furthermore, because the moving part 39 of the safety stopper 11T is inserted into the stopper insertion hole 44H and positioned in the blocking position (Fig. 13(b) → Fig. 13(a)), the moving blade 52 of the cutter 50 is prevented from moving toward the fixed blade 51 (second disabling means).

In this way, in the component mounting device 1 of this embodiment, when the carriage 21 is separated from the base 11, the disabling means (first disabling means, second disabling means) disables the carrier tape cutting device 16 (cutter 50) from cutting the carrier tape CT. Therefore, even if the cutter 50 of the carrier tape cutting device 16 is located within the reach of the operator when the carriage 21 is separated from the base 11, the safety of the operator can be ensured.

Furthermore, as the moving part 39 moves from the second position to the first position, the movable safety cover 111 is displaced from the exposed position to the protected position (Fig. 13(a) → Fig. 13(a)), and the fixed blade edge 51E is protected by the movable safety cover 111. As such, in the component mounting device 1 of this embodiment, when the carriage 21 is separated from the base 11, the movable safety cover 111 covers and protects the edge (fixed blade edge 51E) of the cutter 50 of the carrier tape cutting device 16. Therefore, even when the cutter 50 of the carrier tape cutting device 16 is located within the reach of the operator when the carriage 21 is separated from the base 11, the safety of the operator can be ensured.

When the operating rod 83R of the lever drive cylinder 83 is fully advanced, the moving part 39 is in the first position, and the carriage 21 is pulled forward toward the base 11 (Fig. 22 → Fig. 21), the shutter drive pin 153 on the feeder base part 32 moves forward, causing the shutter 136 to return to the blocking position due to the elastic force of the shutter spring 145 (Fig. 18(b) → Fig. 18(a)). This covers the three coupler plugs 95, the electrical connector socket 134, and the left and right guide holes 142 with the shutter 136 (Figs. 17(a) and 18(b)), preventing dirt and dust from entering the upward-facing openings of the three coupler sockets 94 and the electrical connector socket 134. When attaching or detaching the dolly 21 from the base 11, vibrations can cause components to fly off the carrier tape CT and fall into the connection section 130, but even in such cases, there is no risk of the components getting caught in couplers or connectors facing upward.

In this manner, in the component mounting device 1 of this embodiment, when the cart 21 is attached to the base 11, the base-side couplers (three coupler sockets 94) that connect with the cart-side couplers (three coupler plugs 95) and the base-side connectors (electrical connector sockets 134) that connect with the cart-side connectors (electrical connector plugs 152) are covered by the shutter 136 when the cart 21 is separated from the base 11. This prevents dirt and dust from entering the upward-facing openings of the base-side couplers (three coupler sockets 94) and base-side connectors (electrical connector sockets 134), thereby preventing various problems that can arise from dirt and dust entering these openings. Furthermore, because dirt and dust are prevented from entering the openings, the work of removing dirt and dust that would otherwise be required if dirt or dust entered the openings is also unnecessary.

As explained above, in the component mounting device 1 of this embodiment, the base-side connector (electrical connector socket 134) that connects to the cart-side connector (electrical connector plug 152) when the cart 21 is attached to the base 11 is covered by the shutter 136 when the cart 21 is separated from the base 11. This prevents dirt and dust from entering the opening of the base-side connector (electrical connector socket 134), which faces upward, thereby preventing the occurrence of various problems that can arise from dirt and dust entering these openings.

Up to this point, we have described embodiments of the present invention, but the present invention is not limited to the above and various modifications are possible. For example, the configuration of the component mounting unit 1A in the above embodiment is one example, and the component mounting unit 1A may include a base 11, a substrate holding unit 12 provided on the base 11 and holding a substrate KB, a work head 14 that removes components from the carrier tape CT and mounts them on the substrate KB held by the substrate holding unit 12, and a carrier tape cutting device that cuts the carrier tape CT from which the components have been removed.

It can be applied to component mounting devices that use a cart to replace component supply units all at once.

1 Component mounting device 1A Component mounting section 1B Component supply section 11 Base 12 Substrate holding section 14 Work head 16 Carrier tape cutting device 21 Cart 22 Component supply unit 22K Component removal position 32 Feeder base section 39 Moving section 40 Moving section drive mechanism 53 Cutter drive cylinder (actuator)
94 Coupler socket (base side coupler)
94a First coupler socket 94b Second coupler socket 94c Third coupler socket 95 Coupler plug (bogie side coupler)
95a First coupler plug 95b Second coupler plug 95c Third coupler plug 134 Electrical connector socket (base side connector)
136 Shutter 145 Shutter spring (elastic member)
152 Electrical connector plug (carriage side connector)
153 Shutter drive pin (drive member)
DK1 First power air transmission piping (power air transmission piping)
DK2 Second power air transmission piping (power air transmission piping)
CT carrier tape KB substrate

Claims (6)

a component mounting unit having a base, a substrate holding unit provided on the base and holding a substrate, a work head that removes components from a carrier tape and mounts them on the substrate held by the substrate holding unit, and a carrier tape cutting device that cuts the carrier tape from which the components have been removed;
a carriage that has a feeder base portion that holds a plurality of component supply units arranged side by side and that feeds carrier tapes to a component pick-up position by the work head, the carriage being detachable from the base;
a carriage-side connector of a circuit provided in the feeder base portion and transmitting power and signals to the component supply unit;
a moving unit provided on the base and configured to lift and hold the feeder base;
a base-side connector provided on the moving unit and connected to the carriage-side connector when the feeder base unit is lifted by the moving unit;
a shutter provided on the moving part, the shutter being positioned at a shielding position to cover the base-side connector when the carriage is separated from the base;
Equipped with
The shutter has a shutter body made of a plate-shaped member and legs extending from the shutter body, and the position of the shutter moves as the legs move along a rail portion . The component mounting device described in claim 1, wherein the carriage has a drive member that moves the shutter, and when the carriage approaches the base, the drive member moves the shutter, which is positioned in the shielding position, to a retracted position retracted from the shielding position. 3. The component mounting device according to claim 2, wherein the shutter has an abutment portion on an outer surface side of the leg portion, and the drive member abuts on the abutment portion to move the shutter located at the shielding position. 4. The component mounting device according to claim 2, wherein the moving section is provided with an elastic member that positions the shutter at the shielding position by an elastic force, and the drive member moves the shutter from the shielding position to the retracted position against the elastic force of the elastic member. 5. The component mounting device according to claim 4, wherein the elastic member is provided so as to protrude outward from the leg portion of the shutter. 2. The component mounting device according to claim 1, further comprising: a carriage-side coupler provided on the carriage side and a base-side coupler provided on the moving unit as part of a power air transmission pipe that transmits power air from the base side through the carriage side to an actuator that drives the carrier tape cutting device provided on the base side, or a power air transmission pipe that transmits power air from the base side to the component supply unit, wherein the carriage-side coupler and the base-side coupler are connected when the feeder base is lifted by the moving unit, and the shutter covers the base-side coupler when the carriage is not attached to the base.