Reel holding device and component mounting device

Abstract

The objective is to provide a reel holding device and a parts mounting device that can prevent the reel from being lifted by the parts supply tape unwound from the reel, thereby hindering the normal parts supply operation of the parts supply unit. [Solution] The system includes a first reel holding part (reel case 41) that holds the reel RL, a second reel holding part 56 that holds the reel RL at a lower position than the first reel holding part, and a restricting member 61 that allows the reel RL to move from the first reel holding part to the second reel holding part 56, but restricts the movement of the reel RL that has moved to the second reel holding part 56 due to being pulled by the component supply tape BT transported by the tape feeder 22.

Description

Technical Field

[0001] The present disclosure relates to a reel holding device that holds a reel accommodating a component supply tape in which components are enclosed, and a component mounting apparatus configured to include this reel holding device.

Background Art

[0002] Conventionally, there is known a component mounting apparatus that produces a mounted substrate by supplying components with a component supply unit and transferring the components onto the substrate with a working head. While there are various types of component supply units, tape feeders of the type that convey a component supply tape enclosing components to supply the components to a component pick-up position are widely used. The tape feeder is configured to draw in and convey the component supply tape unwound from the reel, and requires a reel holding device that rotatably holds the reel (for example, refer to Patent Document 1 below).

[0003] In the reel holding device of Patent Document 1, the component supply tape can be independently fed from a plurality of reels to two adjacent tape feeders. For this reason, a reel holding space is secured such that a plurality of component supply tapes unwound from the plurality of reels do not interfere with each other.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problem to be Solved by the Invention

[0005] However, the conventional reel holding device described above had a problem: if the reel was lifted by the parts supply tape being unfurled from it, the reel could interfere with the tape feeder or parts supply tapes being unfurled from other reels, potentially hindering the normal parts supply operation of the tape feeder (parts supply unit).

[0006] Therefore, the present disclosure aims to provide a reel holding device and a component mounting device that can prevent a situation in which the reel is lifted by the component supply tape unwound from the reel, thereby hindering the normal component supply operation by the component supply unit. [Means for solving the problem]

[0007] The reel holding device of the present disclosure is a reel holding device used in conjunction with a parts supply unit that holds a reel containing a parts supply tape in which parts are sealed, and supplies the parts to a work head while feeding the parts supply tape unwound from the reel, and comprises: a first reel holding portion for holding the reel; a second reel holding portion for holding the reel at a lower position than the first reel holding portion; and a restricting member that allows the reel to move from the first reel holding portion to the second reel holding portion, but restricts the movement of the reel that has moved to the second reel holding portion due to being pulled by the parts supply tape conveyed by the parts supply unit.

[0008] The component mounting apparatus of the present disclosure comprises a component supply unit that transports the component supply tape drawn from the reel held by the reel holding device of the present disclosure and supplies components, and a work head that picks up the components supplied by the component supply unit and mounts them onto a substrate. [Effects of the Invention]

[0009] According to this disclosure, it is possible to prevent a situation in which the reel is lifted by the parts supply tape unwound from the reel, thereby hindering the normal parts supply operation of the parts supply unit. [Brief explanation of the drawing]

[0010] [Figure 1] This is a side view of a main part of a component mounting device in one embodiment of the present disclosure. [Figure 2] This is a side view of a part of a component mounting device in one embodiment of the present disclosure. [Figure 3] This is an exploded side view of a reel holding device included in a component mounting device according to one embodiment of the present disclosure. [Figure 4] This is a perspective view of a reel holding device in one embodiment of the present disclosure. [Figure 5] This is a perspective view of a reel case included in a reel holding device according to one embodiment of the present disclosure. [Figure 6] This is a side view of the rear reel holding mechanism of a reel holding device in one embodiment of the present disclosure. [Figure 7] (a) and (b) are side views illustrating the operation of the rear reel holding mechanism of a reel holding device in one embodiment of the present disclosure. [Figure 8] (a) and (b) are side views of a part of the rear reel holding mechanism of a reel holding device in one embodiment of the present disclosure. [Figure 9] (a) and (b) are side views illustrating the operation of the rear reel holding mechanism of a reel holding device in one embodiment of the present disclosure. [Figure 10] This is a side view of the front reel holding mechanism of a reel holding device in one embodiment of the present disclosure. [Figure 11] (a) and (b) are side views illustrating the operation of the front reel holding mechanism of a reel holding device in one embodiment of the present disclosure. [Figure 12] (a) and (b) are side views of a part of the front reel holding mechanism of a reel holding device in one embodiment of the present disclosure. [Figure 13] (a) and (b) are side views for explaining the operation of a front reel holding mechanism provided in a reel holding device according to an embodiment of the present disclosure. [Figure 14] It is a side view of a rear reel discharge portion provided in the reel holding device according to the embodiment of the present disclosure. [Figure 15] It is a side view of a front reel discharge portion provided in the reel holding device according to the embodiment of the present disclosure. [Figure 16] It is a lower perspective view of a slip-off preventing portion provided in the reel holding device according to the embodiment of the present disclosure. [Figure 17] (a) and (b) are side views for explaining the operation of the slip-off preventing portion provided in the reel holding device according to the embodiment of the present disclosure. [Figure 18] It is a side view of the reel holding device according to the embodiment of the present disclosure. [Figure 19] It is a side view of the reel holding device according to the embodiment of the present disclosure. [Figure 20] It is a side view of the reel holding device according to the embodiment of the present disclosure. [Figure 21] It is a side view of the reel holding device according to the embodiment of the present disclosure. [Figure 22] It is a side view of the reel holding device according to the embodiment of the present disclosure. [Figure 23] It is a side view for explaining the operation of the rear reel discharge portion provided in the reel holding device according to the embodiment of the present disclosure. [Figure 24] It is a side view for explaining the operation of the rear reel discharge portion provided in the reel holding device according to the embodiment of the present disclosure. [Figure 25] It is a side view for explaining the operation of the rear reel discharge portion provided in the reel holding device according to the embodiment of the present disclosure. [Figure 26] It is a side view for explaining the operation of the front reel discharge portion provided in the reel holding device according to the embodiment of the present disclosure. [Figure 27] It is a side view for explaining the operation of the front reel discharge portion provided in the reel holding device according to the embodiment of the present disclosure. [Figure 28] This is a side view illustrating the operation of the front reel discharge section of a reel holding device in one embodiment of the present disclosure. [Figure 29] This is a side view of a reel holding device in one embodiment of the present disclosure. [Figure 30] This is a side view of a reel holding device in one embodiment of the present disclosure. [Figure 31] This is a side view of a reel holding device in one embodiment of the present disclosure. [Figure 32] This is a side view of a reel holding device in one embodiment of the present disclosure. [Figure 33] This is a side view illustrating the operation of the rear reel discharge section of a reel holding device in one embodiment of the present disclosure. [Figure 34] This is a side view illustrating the operation of the front reel discharge section of a reel holding device in one embodiment of the present disclosure. [Figure 35] This is a side view of a reel holding device in one embodiment of the present disclosure. [Figure 36] This is a side view of a reel holding device in one embodiment of the present disclosure. [Figure 37] This is a side view of the rear reel discharge section of a reel holding device in one embodiment of the present disclosure. [Figure 38] This is a side view of the front reel discharge section of a reel holding device according to one embodiment of the present disclosure. [Modes for carrying out the invention]

[0011] Embodiments of this disclosure will be described below with reference to the drawings. Figure 1 shows a component mounting device 10 in one embodiment of this disclosure. The component mounting device 10 is a device that repeatedly performs the production work (component mounting work) of mounted boards (components BH) on a substrate KB that has been brought in and then discharged, and comprises a base 11, a substrate positioning unit 12, a component supply unit 13, and a component transfer unit 14. In this embodiment, for the sake of explanation, the transport direction of the substrate KB (the direction perpendicular to the plane of the paper in Figure 1, and the left-right direction as seen from the operator OP) will be referred to as the X direction, and the direction perpendicular to the X direction in the horizontal plane (the front-back direction as seen from the operator OP) will be referred to as the Y direction. The up-down direction will be referred to as the Z direction.

[0012] In Figure 1, the substrate positioning unit 12 is mounted on the base 11 and is equipped with a pair of transport conveyors 11a that extend in the X direction and face each other in the Y direction. The substrate positioning unit 12 transports the substrate KB in the X direction using this pair of transport conveyors 11a and positions it at a predetermined work position.

[0013] In Figure 1, the parts supply unit 13 is configured to include a feeder cart 21 connected to a base 11, a plurality of tape feeders 22 mounted on the feeder cart 21, and a reel holding device 23. The feeder cart 21 is equipped with a plurality of wheels 21H, and the operator OP can operate the feeder cart 21 to move it on the floor surface FL. A table-shaped feeder base 21F extending in the X direction is provided on the upper part of the feeder cart 21. The plurality of tape feeders 22 are detachably mounted on the feeder base 21F in an orderly manner in the X direction (see also Figure 2).

[0014] The tape feeder 22 supplies parts by transporting a parts supply tape BT, which contains a large number of parts BH arranged in a line. Specifically, the tape feeder 22 pulls the parts supply tape BT from the tape inlet 22A located at the rear end (the end on the operator OP's side) and transports it forward (towards the back as seen from the operator OP's perspective; to the right side of the paper in Figure 1), continuously supplying parts BH to the parts removal position 22T (Figure 2) set at the upper front end, and discharges the empty parts supply tape BT from the tape outlet 22B at the front end. The parts supply tape BT is stored wound on a reel RL, which is held by a reel holding device 23.

[0015] In Figure 2, the reel holding device 23 is attached to the feeder cart 21. More specifically, the reel holding device 23 is supported by being locked to a front support rod 21a located on the front side (far side as seen from the operator OP) and a rear support rod 21b located on the rear side (near side as seen from the operator OP), both of which extend in the X direction on the feeder cart 21. Multiple reel holding devices 23 can be attached to the feeder cart 21 in an arrangement in the X direction.

[0016] In Figures 1 and 2, one reel holding device 23 can hold two reels RL of component supply tape BT (current reel RC and next reel RN) each, which are drawn in by two tape feeders 22 located adjacent to each other on the feeder base 21F. Here, "current reel RC" is the reel RL in which the component supply tape BT is currently being drawn in by the tape feeder 22. "Next reel RN" is a replenishment reel RL, which becomes the next current reel RC after the current reel RC is used up. In Figures 1 and 2, the upper reel RL is shown as the next reel RN, but if there is no reel RL (current reel RC) on the lower side, the upper reel RL may become the current reel RC. Note that in reality, the two tape feeders 22 overlap and appear as one unit when viewed from the X direction, but in Figures 1 and 2, the two tape feeders 22 are intentionally offset in the illustration for clarity.

[0017] Each tape feeder 22 pulls in the component supply tape BT from the current reel RC and transports it. When it has finished discharging the end of the component supply tape BT and runs out of components, it pulls in the component supply tape BT from the next reel RN and transports it (the next reel RN then becomes the current reel RC), continues supplying components BH, and supplies components BH to the work head 14H. In this embodiment, the tape feeder 22 functions as a component supply unit that supplies components BH to the work head 14H of the component transfer unit 14 while feeding the component supply tape BT unwound from the reel RL.

[0018] In Figure 1, the part transfer unit 14 consists of a work head 14H and a head movement mechanism 14K. The work head 14H is equipped with a nozzle 14N extending downward, and by supplying vacuum pressure to the nozzle 14N, it picks up part BH. The head movement mechanism 14K consists of, for example, an XY table mechanism, and moves the work head 14H in the direction of the horizontal plane (XY plane).

[0019] When the component mounting device 10 performs component mounting work, first the substrate positioning unit 12 operates to receive the substrate KB sent from the upstream side and position it at the work position. Each tape feeder 22 supplies components BH to the component removal position 22T, and the component transfer unit 14 uses the head moving mechanism 14K to move the work head 14H back and forth between the tape feeder 22 and the substrate KB, thereby causing the work head 14H to repeatedly perform mounting turns.

[0020] In a single mounting turn, the work head 14H performs the operations of picking up component BH supplied by the tape feeder 22 with the nozzle 14N and mounting the picked-up component BH to the target mounting position on the substrate KB. As these mounting turns by the work head 14H are repeatedly performed, once all component BH to be mounted on the substrate KB have been mounted, the substrate positioning unit 12 operates to transport the component-mounted substrate KB (i.e., the mounted substrate) outside the component mounting device 10. This completes the component mounting work for one substrate KB.

[0021] In this component mounting device 10, the reel holding device 23 has a distinctive feature, which will be described below.

[0022] As described above, the reel holding device 23 is a device that holds multiple reels RL on which the component supply tape BT is stored (wound), and is used when attached to the feeder cart 21. In Figure 3, the reel holding device 23 has a base body 31 and a side cover 32. The side cover 32 is positioned opposite the base body 31 in the X direction and is fixed to the base body 31 by a plurality of spacers (not shown) that maintain a constant distance between them. The reel holding device 23 is detachably attached to the feeder cart 21 by engaging the hook portions 23F provided on the front upper and rear lower parts with two support rods (front support rod 21a and rear support rod 21b) that extend in the X direction from the center and rear (operator OP side) of the feeder cart 21 in the front-to-back direction (Y direction).

[0023] As mentioned above, the reel holding device 23 is capable of holding two current reels RC and two next reels RN (Figures 3 and 4). That is, one reel holding device 23 holds one current reel RC and next reel RN used by one tape feeder 22, and one current reel RC and next reel RN used by the tape feeder 22 located next to it. Each of the two tape feeders 22 mounted on the feeder base 21F and adjacent in the X direction pulls in the component supply tape BT from the corresponding current reel RC held by one reel holding device 23 and transports it forward to supply the component BH to the component removal position 22T.

[0024] In Figure 3, two reel holding mechanisms 33 (rear reel holding mechanism 33P and front reel holding mechanism 33Q) are arranged in the space between the base body 31 and the side cover 32. The rear reel holding mechanism 33P and the front reel holding mechanism 33Q each include a reel case 41 (rear reel case 41P or front reel case 41Q), an operating lever 42 (rear operating lever 42P or front operating lever 42Q), a reel discharge section 43 (rear reel discharge section 43P or front reel discharge section 43Q), an ejector 44 (rear ejector 44P or front ejector 44Q), a reel support 45 (rear reel support pin 45P or front reel support 45Q), and an anti-dislodgement section 46 (rear anti-dislodgement section 46P or front anti-dislodgement section 46Q). A reel discharge guide 47 is also positioned in the space between the base body 31 and the side cover 32.

[0025] In Figure 5, the rear reel case 41P, which is the reel case 41 of the rear reel holding mechanism 33P, and the front reel case 41Q, which is the reel case 41 of the front reel holding mechanism 33Q, each have two plate-shaped case plates 41a arranged in the X direction. These two case plates 41a are connected by two front and rear support parts 41b that extend in the X direction, as shown in Figure 5. The distance between the two case plates 41a is greater than the width dimension of the reel RL, and the distance between the two support parts 41b is smaller than the diameter DM of the reel RL. Note that the operating lever 42 is not shown in Figure 5.

[0026] As shown in Figures 3 and 4, the reel cases 41 (rear reel case 41P, front reel case 41Q) rotatably hold the reel RL inserted between the two case plates 41a. More specifically, the reel cases 41 hold the outer peripheral edge of the lower half of the reel RL inserted between the two case plates 41a with two support parts 41b. Thus, in this embodiment, the reel cases 41 (rear reel case 41P and front reel case 41Q) constitute the first reel holding part that holds the reel RL.

[0027] In Figure 6, the rear operating lever 42P extends almost straight from top to bottom, and its lower end is connected to the rear of the rear reel case 41P. In this embodiment, the rear operating lever 42P is mounted on the outside of one of the case plates 41a. At the rear of the rear reel case 41P, there is a pivot shaft 41J that extends in the X direction, passing through the rear support part 41b (left side of the page in Figure 6) of the two front and rear support parts 41b. The pivot shaft 41J is mounted on the upper end of the slider 51 (rear slider 51P), which will be described later.

[0028] In Figures 6 and 7(a) and 7(b), a rotation restricting portion 41K is provided on the rear reel case 41P at a position away from the pivot axis 41J, extending in the X direction (i.e., parallel to the pivot axis 41J) (see also Figures 8(a) and 8(b)).

[0029] In Figure 6, below the rear reel case 41P is the rear reel discharge section 43P, which is the reel discharge section 43 of the rear reel holding mechanism 33P. The rear reel discharge section 43P includes a slider 51 (rear slider 51P) as a sliding member, a torsion spring 52 (rear torsion spring 52P), a bracket 53 (rear bracket 53P), a movable roller 54 (rear movable roller 54P), and a tension spring 55 (rear tension spring 55P) as a second biasing member.

[0030] In Figures 6 and 7(a) and 7(b), the rear slider 51P, which is the slider 51 of the rear reel discharge section 43P, has a shape that extends diagonally from the rear upper to the front lower. An elongated hole 51H is provided in the middle of the rear slider 51P, shaped to follow the contour of the rear slider 51P. Two guide pins 53N pass through the elongated hole 51H at a distance from each other in the X direction. Both ends of the guide pins 53N are fixed to the base body 31 and the side cover 32. Therefore, the rear slider 51P is mounted on the base body 31 in a slidable state by the two guide pins 53N.

[0031] In Figures 7(a),(b) and 9(a),(b), the rear movable roller 54P, which is the movable roller 54 of the rear reel discharge section 43P, is rotatably attached to the lower end of the rear slider 51P. As described above, when the rear slider 51P moves along the axis JS, the rear movable roller 54P also moves in a direction parallel to the axis JS (Figures 9(a),(b)).

[0032] The rear slider 51P is slidable along an axis JS (Figures 9(a), (b)) that extends diagonally along the alignment direction of the two guide pins 53N, and its sliding range is limited to the range in which the elongated hole 51H can move relative to the two guide pins 53N. Therefore, the rear slider 51P can move between a lower position (Figure 9(a)) where the upper end edge of the elongated hole 51H abuts against the upper guide pin 53N of the two guide pins 53N, and an upper position (Figure 9(b)) where the lower end edge of the elongated hole 51H abuts against the lower guide pin 53N of the two guide pins 53N.

[0033] In Figures 7(a) and 7(b), the rear bracket 53P, which is one of the brackets 53, is attached to the two guide pins 53N. The rear tension spring 55P, which is the tension spring 55 of the rear reel discharge section 43P, is provided between the bracket projection 53T that protrudes rearward from the lower end of the rear bracket 53P and the slider projection 51T that protrudes rearward from the portion above the bracket projection 53T. Since the rear bracket 53P is fixed to the base body 31 via the guide pins 53N, when the rear slider 51P moves from the lower position to the upper position, a biasing force acts on the rear slider 51P from the rear tension spring 55P in the direction of pulling it back to the lower position.

[0034] The upper end of the rear slider 51P is connected to the pivot shaft 41J. In other words, in this embodiment, the pivot shaft 41J of the rear reel discharge section 43P is a connecting part that connects the rear operating lever 42P and the rear slider 51P. Therefore, the rear operating lever 42P and the rear reel case 41P can slide together with the rear slider 51P in the direction along the axis JS, and are held stationary at a height position (hereinafter referred to as the "reference position") determined when the rear slider 51P is in the lower position by the biasing force of the rear tension spring 55P. In addition, the rear operating lever 42P and the rear reel case 41P are rotatable around the pivot shaft 41J relative to the rear slider 51P.

[0035] In Figures 8(a) and 8(b), the rear torsion spring 52P, which is the torsion spring 52 of the rear reel discharge section 43P, is inserted through a pivot shaft 41J provided on the rear operating lever 42P. One end 52a of the rear torsion spring 52P is locked to the rear slider 51P, and the other end 52b of the rear torsion spring 52P is locked to a rotation restricting section 41K provided on the rear operating lever 42P. Therefore, in Figure 8, the rear operating lever 42P and the rear reel case 41P connected thereto are biased in a counterclockwise direction around the pivot shaft 41J by the rear torsion spring 52P.

[0036] In Figures 8(a) and 8(b), an engagement recess 51B, which opens toward the rear, is formed at a position below the portion of the rear slider 51P that is coupled to the pivot shaft 41J. The distance of the engagement recess 51B from the pivot shaft 41J is equal to the distance of the rotation restricting part 41K from the pivot shaft 41J. Therefore, the rotation restricting part 41K rotates together with the rear operating lever 42P and the rear reel case 41P around the pivot shaft 41J, and the rear torsion spring 52P causes the rotation restricting part 41K to rotate to a position where it engages with the engagement recess 51B.

[0037] The rear operating lever 42P is positioned in a reference position with the pivot shaft 41J engaged with the rotation restricting part 41K (hereinafter referred to as the "reference state"), and can be rotated around the pivot shaft 41J in a direction in which its upper end tilts forward (Figures 7(a)→7(b) and 8(a)→8(b)). When the operator OP operates the rear operating lever 42P and rotates it around the pivot shaft 41J, the rotation restricting part 41K also rotates around the pivot shaft 41J (Figure 8(a)→8(b)), and the rear reel case 41P, which is fixed to the rear operating lever 42P, also rotates around the pivot shaft 41J (Figure 7(a)→7(b)). In other words, the rear reel case 41P rotates together with the rear operating lever 42P around the pivot shaft 41J. When the rear operating lever 42P is rotated from its reference position (arrow RP shown in Figure 8(b)), the rotation restricting part 41K moves away from the engaging recess 51B (Figure 8(b)). When the operator OP releases their hand from the rear operating lever 42P, the rear torsion spring 52P returns the rear operating lever 42P and the rear reel case 41P to their reference positions.

[0038] The rear operating lever 42P can be operated from its standard position to a position where it is pulled up diagonally rearward and upward along the axis JS (referred to as the "second state"; Figure 9(b)) (arrow PP shown in Figure 9(b)). When the rear operating lever 42P is in the second state, the rear slider 51P, which is connected by the pivot shaft 41J, is also pulled up diagonally rearward and upward. As a result, the rear movable roller 54P, which is attached to the rear slider 51P, also moves diagonally rearward and upward. Thus, in this embodiment, the rear reel holding mechanism 33P has two reel support members (the rear movable roller 54P and the rear reel support pin 45P), one of which (the rear movable roller 54P) slides together with the rear operating lever 42P.

[0039] When the rear operating lever 42P is operated from the standard state to the first state, a biasing force acts on the rear operating lever 42P from the rear torsion spring 52P in the direction that returns it to the standard state. Therefore, when the operator OP releases their hand from the rotated rear operating lever 42P, the rear operating lever 42P returns to the standard state (Figure 7(b) → Figure 7(a)).

[0040] The rear operating lever 42P can also be operated from the standard state to a second state (arrow PP shown in Figure 9(b)). When the rear operating lever 42P is operated from the standard state to the second state in this way, the rear slider 51P, which is connected to the rear operating lever 42P via the pivot shaft 41J, is also pulled up diagonally upward and backward along the axis JS, so the rear operating lever 42P receives a biasing force from the rear tension spring 55P that biases it towards the lower position. Therefore, when the operator OP releases the rear operating lever 42P from the diagonally upward and backward position, the rear operating lever 42P returns to the standard state (Figure 9(b) → Figure 9(a)).

[0041] In this embodiment, the rear operating lever 42P can be operated to a first state (Figure 7(b)) in which the upper end is rotated forward from the reference state (Figures 7(a) and 9(a)) of the rear slider 51P, and a second state (Figure 9(b)) in which the upper end is pulled up diagonally rearward and upward from the reference state, unlike the first state. The torsion spring 52 (rear torsion spring 52P) of the rear reel holding mechanism 33P is a first biasing member that biases the rear operating lever 42P, which is in the first state, in the direction of returning it to the reference state, and the tension spring 55 (rear tension spring 55P) of the rear reel holding mechanism 33P is a second biasing member that biases the operating lever 42 (rear operating lever 42P), which is in the second state, in the direction of returning it to the reference state.

[0042] In Figure 10, the front operating lever 42Q extends diagonally from the rear upper to the front lower, and its lower end is connected to the rear of the front reel case 41Q. In this embodiment, the front operating lever 42Q is mounted on the outside of one of the case plates 41a. At the rear of the front reel case 41Q, a pivot shaft 41J is provided, which extends in the X direction through the rear support part 41b (left side of the page in Figure 10) of the two front and rear support parts 41b. The pivot shaft 41J is mounted on the upper end of the slider 51 (front slider 51Q), which will be described later.

[0043] In Figures 10 and 11(a) and (b), a rotation restricting portion 41K is provided on the front reel case 41Q at a position away from the pivot axis 41J, extending in the X direction (i.e., parallel to the pivot axis 41J) (see also Figures 12(a) and (b)).

[0044] In Figure 10, below the front reel case 41Q is the front reel discharge section 43Q, which is the reel discharge section 43 of the front reel holding mechanism 33Q. The front reel discharge section 43Q includes a slider 51 (front slider 51Q) as a sliding member, a torsion spring 52 (front torsion spring 52Q), a bracket 53 (front bracket 53Q), a movable roller 54 (front movable roller 54Q), and a tension spring 55 (front tension spring 55Q) as a second biasing member.

[0045] In Figures 10 and 11(a) and (b), the front slider 51Q, which is the slider 51 of the front reel discharge section 43Q, has a shape that extends diagonally from the rear upper to the front lower. An elongated hole 51H is provided in the middle of the front slider 51Q, shaped to follow the contour of the front slider 51Q. Two guide pins 53N pass through the elongated hole 51H at a distance from each other in the X direction. Both ends of the guide pins 53N are fixed to the base body 31 and the side cover 32. Therefore, the front slider 51Q is mounted on the base body 31 in a slidable state by the two guide pins 53N.

[0046] In Figures 11(a),(b) and 13(a),(b), the lower end of the front slider 51Q is an extension 51E that bends forward, and the front movable roller 54Q, which is the movable roller 54 of the front reel discharge section 43Q, is rotatably attached to the end of the extension 51E. As shown in Figures 10 and 11(a),(b), the base body 31 is provided with a roller guide slot 31N that extends in a direction parallel to the direction along the axis JS, and as described above, when the front slider 51Q moves in the direction along the axis JS, the front movable roller 54Q also moves in the direction parallel to the axis JS within the roller guide slot 31N (Figures 13(a),(b)).

[0047] The front slider 51Q is slidable along an axis JS (Figures 13(a), (b)) that extends diagonally along the alignment direction of the two guide pins 53N, and its sliding range is limited to the range in which the elongated hole 51H can move relative to the two guide pins 53N. Therefore, the front slider 51Q can move between a lower position (Figure 13(a)) where the upper end edge of the elongated hole 51H abuts against the upper guide pin 53N of the two guide pins 53N, and an upper position (Figure 13(b)) where the lower end edge of the elongated hole 51H abuts against the lower guide pin 53N of the two guide pins 53N.

[0048] In Figures 11(a) and (b), the front bracket 53Q, which is one of the brackets 53, is attached to the two guide pins 53N. The front tension spring 55Q, which is the tension spring 55 of the front reel discharge section 43Q, is provided between the bracket projection 53T that protrudes rearward from the lower end of the front bracket 53Q and the slider projection 51T that protrudes rearward from a portion above the bracket projection 53T. Since the front bracket 53Q is fixed to the base body 31 via the guide pins 53N, when the front slider 51Q moves from the lower position to the upper position, a biasing force acts on the front slider 51Q from the front tension spring 55Q in the direction of pulling it back to the lower position.

[0049] The upper end of the front slider 51Q is connected to the pivot shaft 41J. In other words, in this embodiment, the pivot shaft 41J of the front reel discharge section 43Q is a connecting part that connects the front operating lever 42Q and the front slider 51Q. Therefore, the front operating lever 42Q and the front reel case 41Q can slide together with the front slider 51Q in the direction along the axis JS, and are held stationary at a height position (hereinafter referred to as the "reference position") determined when the front slider 51Q is in the lower position by the biasing force of the front tension spring 55Q. In addition, the front operating lever 42Q and the front reel case 41Q are rotatable around the pivot shaft 41J relative to the front slider 51Q.

[0050] In Figures 12(a) and (b), the front torsion spring 52Q, which is the torsion spring 52 of the front reel discharge section 43Q, is inserted through a pivot shaft 41J provided on the front operating lever 42Q. One end 52a of the front torsion spring 52Q is locked to the front slider 51Q, and the other end 52b of the front torsion spring 52Q is locked to a rotation restricting section 41K provided on the front operating lever 42Q. Therefore, in Figure 12, the front operating lever 42Q and the front reel case 41Q connected thereto are biased in a counterclockwise direction around the pivot shaft 41J by the front torsion spring 52Q.

[0051] In Figures 12(a) and (b), an engaging recess 51B, which opens toward the front, is formed at a position below the portion of the front slider 51Q connected to the pivot shaft 41J. The distance of the engaging recess 51B from the pivot shaft 41J is equal to the distance of the rotation restricting section 41K from the pivot shaft 41J. Therefore, the rotation restricting section 41K rotates together with the front operating lever 42Q and the front reel case 41Q around the pivot shaft 41J, and the front torsion spring 52Q causes the rotation restricting section 41K to rotate to a position where it engages with the engaging recess 51B.

[0052] The front operating lever 42Q is positioned in a reference position with the pivot shaft 41J engaged with the rotation restricting part 41K (hereinafter referred to as the "reference state"), and can be rotated around the pivot shaft 41J in a direction in which its upper end tilts forward (Figures 11(a)→11(b) and 12(a)→12(b)). When the operator OP operates the front operating lever 42Q and rotates it around the pivot shaft 41J, the rotation restricting part 41K also rotates around the pivot shaft 41J (Figure 12(a)→12(b)), and the front reel case 41Q fixed to the front operating lever 42Q also rotates around the pivot shaft 41J (Figure 11(a)→11(b)). In other words, the front reel case 41Q rotates together with the front operating lever 42Q around the pivot shaft 41J. When the front operating lever 42Q is rotated from its reference position (arrow RQ shown in Figure 12(b)), the rotation restricting part 41K moves away from the engaging recess 51B (Figure 12(b)). When the operator OP releases their hand from the front operating lever 42Q, the front torsion spring 52Q returns the front operating lever 42Q and the front reel case 41Q to their reference positions.

[0053] The front operating lever 42Q can be operated from its standard position to a position where it is pulled up diagonally rearward and upward along the axis JS (referred to as the "second state"; Figure 13(b)) (arrow PQ shown in Figure 13(b)). When the front operating lever 42Q is in the second state, the front slider 51Q, which is connected by the pivot shaft 41J, is also pulled up diagonally rearward and upward. As a result, the front movable roller 54Q attached to the front slider 51Q also moves diagonally rearward and upward. Thus, in this embodiment, the front reel holding mechanism 33Q has two reel support members (front movable roller 54Q and front reel support 45Q), one of which (front movable roller 54Q) slides together with the front operating lever 42Q. Here, a roller (front movable roller 54Q) is shown as an example of a reel support member, but the reel support member does not necessarily have to be a roller; it may be a member capable of supporting the reel RL in a form other than a roller (for example, a pin or shaft).

[0054] When the front operating lever 42Q is operated from the standard state to the first state, a biasing force acts on the front operating lever 42Q from the front torsion spring 52Q in the direction that returns it to the standard state (standard position). Therefore, when the operator OP releases their hand from the rotated front operating lever 42Q, the front operating lever 42Q returns to the standard state (standard position) (Figure 11(b) → Figure 11(a)).

[0055] The front operating lever 42Q can also be operated from the reference state described above to a second state (arrow PQ shown in Figure 13(b)). When the front operating lever 42Q is operated from the reference state to the second state in this way, the front slider 51Q, which is connected to the front operating lever 42Q via the pivot shaft 41J, is also pulled up diagonally upward and backward along the axis JS, so the front operating lever 42Q receives a biasing force from the front tension spring 55Q that biases it towards the lower position. Therefore, when the operator OP releases the front operating lever 42Q which has been pulled up diagonally upward and backward, the front operating lever 42Q returns to the reference state (Figure 13(b) → Figure 13(a)).

[0056] In this embodiment, the front operating lever 42Q can be operated to a first state (Figure 13(b)) in which the upper end is rotated forward from the reference state (Figures 11(a) and 13(a)) of the front slider 51Q, and a second state (Figure 13(b)) in which the upper end is pulled up diagonally rearward and upward from the reference state, unlike the first state. The torsion spring 52 (front torsion spring 52Q) of the front reel holding mechanism 33Q is a first biasing member that biases the front operating lever 42Q, which is in the first state, in the direction of returning it to the reference state, and the tension spring 55 (front tension spring 55Q) of the front reel holding mechanism 33Q is a second biasing member that biases the operating lever 42 (front operating lever 42Q), which is in the second state, in the direction of returning it to the reference state.

[0057] In Figure 3, the rear ejector 44P of the rear reel holding mechanism 33P is provided projecting in the X direction from a position in front of the rear slider 51P on the base body 31 (see also Figure 6). Similarly, the front ejector 44Q of the front reel holding mechanism 33Q is provided projecting in the X direction from a position in front of the front slider 51Q on the base body 31 (see also Figure 10).

[0058] In Figure 3, the rear reel support pin 45P, which is the reel support 45 of the rear reel holding mechanism 33P, is located in front of and below the rear movable roller 54P on the base body 31. The rear reel support pin 45P consists of a protruding member that extends from the base body 31 in the X direction. As shown in Figures 6 and 14, an auxiliary pin 45H is provided in front of the rear reel support pin 45P, extending from the base body 31 in the X direction.

[0059] As shown in Figure 14, the distance KK between the rear movable roller 54P and the rear reel support pin 45P is set to be smaller than the diameter of the reel RL when the rear slider 51P is in the lower position, i.e., when the rear operating lever 42P is in the reference position. Therefore, when the rear slider 51P is in the lower position, the lower edge of the reel RL can be supported and held by the rear movable roller 54P and the rear reel support pin 45P (Figure 14).

[0060] In this embodiment, the movable roller 54 (rear movable roller 54P) and reel support 45 (rear reel support pin 45P) of the rear reel holding mechanism 33P form a second reel holding part 56 (rear second reel holding part 56P) that holds the reel RL at a lower position than the reel case 41 (rear reel case 41P), which is the first reel holding part of the rear reel holding mechanism 33P (Figure 6). The rear operating lever 42P rotates around a pivot axis 41J that extends in the direction (X direction) across the transport direction (Y direction) of the component supply tape BT by the tape feeder 22 to change to a first state, and the rear reel case 41P, which is the first reel holding part, rotates around the pivot axis 41J to change to a state in which the reel RL can be moved to the rear second reel holding part 56P.

[0061] In Figure 3, the front reel support 45Q, which is the reel support 45 of the front reel holding mechanism 33Q, is provided in front of and below the front movable roller 54Q on the base body 31. The front reel support 45Q protrudes from the base body 31 in the X direction and consists of a plate-shaped member that extends along the edge of the base body 31 so as to be inclined from the front upper to the rear lower.

[0062] As shown in Figure 15, the distance KK between the front movable roller 54Q and the front reel support 45Q is set to be smaller than the diameter of the reel RL when the front slider 51Q is in the lower position. Therefore, when the front slider 51Q is in the lower position, that is, when the front operating lever 42Q is in the reference position, the lower edge of the reel RL can be supported and held by the front movable roller 54Q and the front reel support 45Q (Figure 15).

[0063] In this embodiment, the movable roller 54 (front movable roller 54Q) and reel support 45 (front reel support 45Q) of the front reel holding mechanism 33Q form a second reel holding part 56 (front second reel holding part 56Q) that holds the reel RL at a lower position than the reel case 41 (front reel case 41Q), which is the first reel holding part of the front reel holding mechanism 33Q (Figure 10). The front operating lever 42Q rotates around a pivot axis 41J that extends in the direction (X direction) across the transport direction (Y direction) of the component supply tape BT by the tape feeder 22 to change to a first state, and the front reel case 41Q, which is the first reel holding part, rotates around the pivot axis 41J to change to a state in which the reel RL can be moved to the front second reel holding part 56Q.

[0064] In Figures 3 and 4, the rear anti-slip portion 46P of the rear reel holding mechanism 33P is located in front of the rear reel case 41P (see also Figure 6), and the front anti-slip portion 46Q of the front reel holding mechanism 33Q is located in front of the front reel case 41Q (see also Figure 10). These anti-slip portions 46 (rear anti-slip portion 46P, front anti-slip portion 46Q) each include a regulating member 61 that is swivelable like a pendulum around a shaft portion 31J that protrudes from the base body 31 in the X direction, a stopper member 62 located behind the shaft portion 31J of the base body 31, and a biasing spring 63 as a biasing means, as shown in Figures 16 and 17(a) and (b).

[0065] In Figures 16 and 17(a) and (b), the restricting member 61 includes a roller 61R mounted on its lower end. The roller 61R is rotatable about an axis in the direction along the X direction (parallel to the direction in which the shaft portion 31J extends). The biasing spring 63 is a torsion spring, and its cylindrical (coil-shaped) portion is mounted on the shaft portion 31J. One end 63a of the biasing spring 63 is locked to the restricting member 61, and the other end 63b is locked to a spring locking screw 62S provided on the stopper member 62.

[0066] The restricting member 61 is biased by the biasing force of the biasing spring 63 so that the roller 61R at its lower end faces backward. Therefore, when no force is acting on the roller 61R, the restricting member 61 is in a position (referred to as the "steady position") in which the contact surface 61M provided at its upper end is in contact with the stopper surface 62M of the stopper member 62 (Figures 16 and 17(a)). In other words, in this embodiment, the restricting member 61 is pivotable around the shaft portion 31J, which is a pivot axis extending along the thickness direction of the reel RL, and is positioned in the steady position in contact with the stopper member 62 that restricts the range of motion of the restricting member 61.

[0067] When the regulating member 61 is in a steady position, the distance KR between the support portion 41b (front support portion 41b) of the reel case 41 (rear reel case 41P or front reel case 41Q) that is closer to the roller 61R, and the lower end of the regulating member 61 (roller 61R) is set to be smaller than the diameter DM of the reel RL (Figures 6 and 10).

[0068] When no external force is acting on the lower roller 61R, the regulating member 61 is in a steady position as described above. However, when a forward pressing force is applied to the roller 61R, the regulating member 61 swings around the shaft portion 31J in a direction that moves its lower end (roller 61R) forward (Figure 17(a) → Figure 17(b)). In this swinging state, the regulating member 61 receives a biasing force from the biasing spring 63 in the direction that returns it to its steady position. After the pressing force is removed, the regulating member 61 returns to its steady position (Figure 17(b) → Figure 17(a)). When the regulating member 61 is swung to its maximum extent in the direction that moves it forward, the roller 61R reaches a position that is a distance greater than the diameter DM of the reel RL from the position of the support portion 41b when the operating lever 42 is operated to the first state.

[0069] In Figures 3 and 4, the reel discharge guide 47 protrudes from the base body 31 in the X direction and consists of a member that extends along the edge of the base body 31 so as to be inclined from the front upper to the rear lower. The reel discharge guide 47 is located diagonally below and behind the front reel support 45Q.

[0070] Next, the procedure for replacing reel RL in the reel holding device 23 will be explained. In the reel holding device 23, the replacement operation of reel RL in the rear reel holding mechanism 33P and the replacement operation of reel RL in the front reel holding mechanism 33Q can be performed independently of each other. However, for the sake of simplicity, this explanation will be based on the assumption that the replacement operation of reel RL in the rear reel holding mechanism 33P and the replacement operation of reel RL in the front reel holding mechanism 33Q are performed simultaneously. In this embodiment, the front reel holding mechanism 33Q holds the reel RL used by the front tape feeder 22 of the two tape feeders 22 arranged adjacent to each other on the feeder base 21F, and the rear reel holding mechanism 33P holds the reel RL used by the rear tape feeder 22.

[0071] Figure 18 shows a state in which the reel RL is not held in either the first reel holding section (rear reel case 41P and front reel case 41Q) or the second reel holding section (rear second reel holding section 56P and front second reel holding section 56Q) of the reel holding device 23. In order to make the reel RL be held by the reel holding device 23 in this state, the operator OP first inserts the reel RL into the rear reel case 41P and the front reel case 41Q to hold it (Figure 19).

[0072] Once the operator OP has the reels RL held in the rear reel case 41P and the front reel case 41Q, the operator pulls out the component supply tape BT from each reel RL and inserts the leading edge of the component supply tape BT into the tape inlet 22A of each of the two tape feeders 22 positioned adjacent to each other on the feeder base 21F (Figure 20). As a result, the two tape feeders 22 each begin the component supply operation, pulling in the component supply tape BT inserted from the tape inlet 22A and transporting it forward to supply the component BH to the component retrieval position 22T.

[0073] After the operator OP inserts the parts supply tapes BT pulled from the two reels RL into the tape inlets 22A of the two tape feeders 22, he rotates the rear operating lever 42P and the front operating lever 42Q from the "standard state" to the "first state" (Figure 20 → Figure 21 → Figure 22).

[0074] As described above, when the rear operating lever 42P is rotated from the "reference state" to the "first state" (arrow RP shown in Figure 23), one of the two support parts 41b that make up the rear reel case 41P (the front support part 41b) becomes relatively lower in height than the other (the rear support part 41b). Also, the reel RL held in the rear reel case 41P moves relatively closer to the rear ejector 44P, and the lower edge of the reel RL is pushed up relatively by the rear ejector 44P, so the center of gravity of the reel RL moves forward of the one (front) support part 41b. For this reason, when the rear operating lever 42P is operated from the "reference state" to the "first state", the reel RL comes out from the front of the rear reel case 41P and falls (Figure 23 → Figure 24).

[0075] Thus, in this embodiment, the first reel holding part (rear reel case 41P) of the rear reel holding mechanism 33P is equipped with two support parts 41b that support the outer circumference of the reel RL from below, and by changing the relative height of these two support parts 41b, the reel RL supported by the two support parts 41b is dropped and discharged from the rear reel case 41P.

[0076] As described above, the reel RL, which has fallen and been ejected from the rear reel case 41P, falls forward and downward. After its lower edge is temporarily held by the rear reel support pin 45P and the auxiliary pin 45H (Figure 24), the reel RL falls further and moves backward (Figure 24 → Figure 25). It is then held by the rear movable roller 54P and the rear reel support pin 45P, that is, the second reel holding part 56 (rear second reel holding part 56P) of the rear reel holding mechanism 33P (Figure 25).

[0077] Here, as described above, the reason why the reel RL, which has fallen from the rear reel case 41P, is temporarily held by the rear reel support pin 45P and the auxiliary pin 45H (Figure 24), and then falls further and moves backward, is because the center of gravity of the reel RL, while held by the rear reel support pin 45P and the auxiliary pin 45H, is located behind the rear reel support pin 45P. Furthermore, the reason why the reel RL, which has fallen from the rear reel case 41P, is ultimately held by the rear movable roller 54P and the rear reel support pin 45P (Figure 25), as mentioned earlier, is because the distance KK between the rear movable roller 54P and the rear reel support pin 45P is smaller than the diameter DM of the reel RL.

[0078] Similarly, when the front operating lever 42Q is rotated from the "reference state" to the "first state" (arrow RQ shown in Figure 26), one of the two support parts 41b that make up the front reel case 41Q (the front support part 41b) becomes relatively lower in height than the other (the rear support part 41b). Also, the reel RL held in the front reel case 41Q moves relatively closer to the front ejector 44Q, and the lower edge of the reel RL is pushed up relatively by the front ejector 44Q, so the center of gravity of the reel RL moves forward of the one (front) support part 41b. For this reason, when the front operating lever 42Q is operated from the "reference state" to the "first state", the reel RL comes out from the front of the front reel case 41Q and falls (Figure 26 → Figure 27).

[0079] Thus, in this embodiment, the first reel holding part (front reel case 41Q) of the front reel holding mechanism 33Q is equipped with two support parts 41b that support the outer circumference of the reel RL from below, and by changing the relative height of these two support parts 41b, the reel RL supported by the two support parts 41b falls out of the front reel case 41Q and is discharged.

[0080] As described above, the reel RL that falls and is discharged from the front reel case 41Q falls forward and downward, and is then held by the front movable roller 54Q and the front reel support 45Q, that is, the second reel holding part 56 (front second reel holding part 56Q) of the front reel holding mechanism 33Q (Figure 28).

[0081] Here, as described above, the reason why the reel RL that has fallen from the front reel case 41Q is held by the front movable roller 54Q and the front reel support 45Q (Figure 28) is because, as previously stated, the distance KK between the front movable roller 54Q and the front reel support 45Q is smaller than the diameter DM of the reel RL.

[0082] As mentioned above, the distance KR between the front support portion 41b of the reel case 41 and the lower end (roller 61R) of the regulating member 61 of the anti-dislodgement portion 46 is set to be smaller than the diameter DM of the reel RL. Therefore, the reel RL discharged from the reel case 41 comes into contact with the roller 61R (Figures 23 and 26). However, the biasing spring 63 does not exert enough biasing force to support the reel RL with the regulating member 61, so the roller 61R is displaced in a direction that moves forward due to the weight of the reel RL. As a result, the distance KR between the front support portion 41b and the roller 61R widens, and the reel RL passes between the front support portion 41b and the regulating member 61 and falls.

[0083] After the reel RL falls from between the front support portion 41b and the roller 61R as described above, the regulating member 61 returns to its steady position (the position where the contact surface 61M contacts the stopper surface 62M of the stopper member 62) due to the biasing force of the biasing spring 63. As a result, the distance KR between the front support portion 41b and the roller 61R returns to its original distance, which is smaller than the diameter DM of the reel RL (Figures 25 and 28). In this way, the reel RL that fell from between the front support portion 41b and the roller 61R is held by the second reel holding portion 56, and after the regulating member 61 returns to its steady position, the regulating member 61 does not come into contact with either the reel RL held in the reel case 41 or the reel RL held in the second reel holding portion 56.

[0084] In this embodiment, the reel RL discharged from the first reel holding part, the reel case 41 (rear reel case 41P or front reel case 41Q), passes between the one of the two support parts 41b of the reel case 41 that is closer to the regulating member 61 (the front support part 41b) and the regulating member 61, and moves to the second reel holding part 56. After the reel RL moves to the second reel holding part 56, the distance KR between the one (front) support part 41b and the regulating member 61 becomes smaller than the diameter of the reel RL.

[0085] As described above, once the reel RL in the rear reel case 41P is moved to a position where it is held by the rear second reel holding part 56P, and the reel RL in the front reel case 41Q is moved to a position where it is held by the front second reel holding part 56Q, the operator OP releases his hand from the rear operating lever 42P to return the rear operating lever 42P to its original position, and also releases his hand from the front operating lever 42Q to return the front operating lever 42Q to its original position (Figures 28 and 29).

[0086] As described above, when the reel RL in the rear reel case 41P is held by the rear second reel holding part 56P, as shown in Figure 28, the parts supply tape BT pulled out from the reel RL held by the rear second reel holding part 56P passes between the front support part 41b and the lower end (roller 61R) of the regulating member 61 and reaches the tape inlet 22A of the tape feeder 22. Also, when the reel RL in the front reel case 41Q is held by the front second reel holding part 56Q, as shown in Figure 28, the parts supply tape BT pulled out from the reel RL held by the front second reel holding part 56Q passes between the front support part 41b and the lower end (roller 61R) of the regulating member 61 and reaches the tape inlet 22A of the tape feeder 22.

[0087] Once the reel RL in the rear reel case 41P is held by the rear second reel holding section 56P, and the reel RL in the front reel case 41Q is held by the front second reel holding section 56Q, the operator OP has the replenishment reel RL held as the next reel RN in the respective empty rear reel case 41P and front reel case 41Q (Figure 30). After the replenishment reel RL is held in the respective rear reel case 41P and front reel case 41Q, the operator OP pulls out the parts supply tape BT from each of these replenishment reel RLs and inserts it into the tape inlet 22A of each tape feeder 22 (Figure 31). The parts supply tape BT pulled out from the reel RL held as the next reel RN and inserted into the tape feeder 22 of the tape feeder 22 remains in a standby state until the parts supply tape BT pulled out from the current reel RL and used for supplying parts runs out.

[0088] From the state shown in Figure 31, the parts supply operation by the tape feeder 22 proceeds, and when the parts supply tape BT pulled from the reel RL held by the rear second reel holding part 56P runs out and the reel RL held by the rear reel case 41P becomes the current reel RC (Figure 32), the operator OP pulls up the rear operating lever 42P diagonally upward and backward (arrow PP shown in Figure 33). As a result, the rear slider 51P connected to the rear operating lever 42P via the pivot shaft 41J is pulled up diagonally upward and backward along the axis JS, and the rear movable roller 54P is guided by the roller guide elongated hole 31N and moves diagonally upward and backward. Then, the distance KK between the rear movable roller 54P and the rear reel support pin 45P becomes larger than the diameter DM of the reel RL, and the reel RL falls downward through the space between the rear movable roller 54P and the rear reel support pin 45P (Figure 33).

[0089] Furthermore, from the state shown in Figure 31, as the parts supply operation by the tape feeder 22 progresses, and the parts supply tape BT pulled out from the reel RL held in the front second reel holding section 56Q runs out of parts, and the reel RL held in the front reel case 41Q becomes the current reel RC (Figure 32), the operator OP pulls up the front operating lever 42Q diagonally upward and backward (arrow PQ shown in Figure 34). As a result, the front slider 51Q, which is connected to the front operating lever 42Q via the pivot shaft 41J, is pulled up diagonally upward and backward along the axis JS, and the front movable roller 54Q moves diagonally upward and backward, guided by the roller guide elongated hole 31N. Then, the distance KK between the front movable roller 54Q and the front reel support 45Q becomes greater than the diameter DM of the reel RL, and the reel RL passes between the front movable roller 54Q and the front reel support 45Q, rolls along the reel discharge guide 47 and falls downward (Figures 34 and 35).

[0090] In this embodiment, the second reel holding section 56 (rear second reel holding section 56P, front second reel holding section 56Q) is equipped with two reel support members (movable roller 54 and reel support 45) that support the reel RL. When the operating lever 42 (rear operating lever 42P, front operating lever 42Q) is operated from the reference state to the second state, the distance KK between the two reel support members is widened, and when the distance KK becomes larger than the diameter DM of the reel RL, the reel RL is discharged from between the two reel support members.

[0091] As described above, once the empty reel RL held in the rear second reel holder 56P is discharged and the empty reel RL held in the front second reel holder 56Q is discharged (Figure 36), the state returns to that shown in Figure 20. After that, the operator OP replaces (replaces) the reel RL using the same procedure.

[0092] As described above, the reel holding device 23 in the component loading device 10 of this embodiment is used together with a tape feeder 22 that holds a reel RL containing a component supply tape BT and supplies component BH to the work head 14H while feeding the component supply tape BT unwound from the reel RL. The reel holding device 23 includes a reel case 41 as a first reel holding part that holds the reel RL, a second reel holding part 56 that holds the reel RL at a lower position than the reel case 41, and an operating lever 42 that can be operated from a reference state to a first state or a second state different from the first state. The reel case 41 changes to a state in which the reel RL can be moved to the second reel holding part 56 when the operating lever 42 is operated to the first state, and the second reel holding part 56 changes to a state in which the reel RL can be discharged when the operating lever 42 is operated to the second state.

[0093] In this embodiment, the discharge of the reel RL from the second reel holding section 56 and the movement of the reel RL from the first reel holding section (reel case 41) to the second reel holding section 56 are performed independently of each other. Therefore, if it becomes necessary to discharge the reel RL held in the second reel holding section 56 for any reason, the reel RL can be discharged without affecting the reel RL held in the first reel holding section (reel case 41). Thus, the reel holding device 23 in this embodiment is easy to use and significantly reduces the workload of the operator OP.

[0094] Furthermore, as mentioned above, once the reel RL that has fallen from the reel case 41 (rear reel case 41P or front reel case 41Q) is held in the second reel holding part 56 by the swinging of the regulating member 61 that constitutes the anti-detachment part 46, the regulating member 61 returns to a steady position due to the biasing force of the biasing spring 63, and the distance KR between the roller 61R and the rear support part 41b returns to its original distance which is smaller than the diameter DM of the reel RL (Figures 25 and 28). In other words, the regulating member 61 allows the reel RL to move from the reel case 41 to the second reel holding part 56, but restricts the movement of the reel RL that has moved to the second reel holding part 56 due to being pulled by the component supply tape BT conveyed by the tape feeder 22.

[0095] In this embodiment, the restricting member 61 is pushed by the reel RL, which moves from the first reel holding part (reel case 41) toward the second reel holding part 56, and moves from a predetermined steady position to allow the movement of the reel RL. When the pressure from the reel RL is released, the restricting member 61 returns to its steady position. The biasing spring 63 biases the restricting member 61 toward its steady position.

[0096] If the parts supply tape BT and reel RL become locked for some reason (the parts supply tape BT is not unwound from reel RL), reel RL, which has moved to the second reel holding section 56, may be pulled up by the parts supply tape BT being transported by the tape feeder 22. However, the lifted reel RL will come into contact with the roller 61R in its steady position, and the resulting momentum will release the lock, causing it to fall. In other words, the restricting member 61 alone functions to restrict the movement of reel RL, which has moved to the second reel holding section 56, by being pulled by the parts supply tape BT being transported by the parts supply unit (tape feeder 22).

[0097] As mentioned above, once the reel RL that has fallen from between the front support portion 41b and the roller 61R is held by the second reel holding portion 56, and the regulating member 61 returns to its steady position (returns), the regulating member 61 is designed not to come into contact with either the reel RL held in the reel case 41 or the reel RL held in the second reel holding portion 56. Therefore, the reel RL held in the second reel holding portion 56 does not receive resistance from the regulating member 61 (in this case, the roller 61R) and can rotate smoothly while being held in the second reel holding portion 56. As a result, the supply of the component supply tape BT from the reel RL held in the second reel holding portion 56 is smooth.

[0098] The embodiments of this disclosure are described above, and include the following technologies (reel holding device and component mounting device).

[0099] (Item 1) A reel holding device (reel holding device 23) used in conjunction with a parts supply unit (tape feeder 22) that holds a reel (reel RL) containing a parts supply tape (parts supply tape BT) in which parts (parts BH) are sealed, and supplies the parts to a work head (work head 14H) while feeding the parts supply tape unwound from the reel, the reel holding device comprising: a first reel holding part (reel case 41) for holding the reel; a second reel holding part (second reel holding part 56) for holding the reel at a lower position than the first reel holding part; and a restricting member (restricting member 61) that allows the reel to move from the first reel holding part to the second reel holding part, but restricts the movement of the reel that has moved to the second reel holding part due to being pulled by the parts supply tape conveyed by the parts supply unit.

[0100] In the reel holding device 23 of item 1, the lifting of the reel when the parts supply tape wound around the reel is unwound is restricted by the restricting member. Therefore, the lifted reel does not interfere with other reels or the parts supply tape unwound from those reels, and it is possible to prevent the normal parts supply operation of the parts supply unit from being hindered by the reel being lifted by the parts supply tape unwound from the reel.

[0101] (Item 2) The reel holding device according to item 1, wherein the restricting member is pushed by the reel moving from the first reel holding portion toward the second reel holding portion, moves from a predetermined steady position to allow the reel to move, and returns to the steady position when the pressure from the reel is released.

[0102] According to the technology in item 2, the effect of item 1 can be obtained with a simple configuration.

[0103] (Item 3) The reel holding device according to item 2, wherein the restricting member does not contact either the reel held by the first reel holding portion or the reel held by the second reel holding portion when in the steady position.

[0104] The technology described in item 3 ensures that the effects described in item 2 can be reliably obtained.

[0105] (Item 4) The reel holding device according to item 2, further comprising a biasing means (biasing spring 63) for biasing the regulating member toward the steady position.

[0106] According to the technology in item 4, the effect of item 2 can be obtained with a simple configuration.

[0107] (Item 5) The reel holding device according to item 4, wherein the restricting member is pivotable about a pivot axis (shaft portion 31J) extending along the thickness direction of the reel, and is positioned in the steady position in contact with a stopper member (stopper member 62) that restricts the range of motion of the restricting member.

[0108] According to the technology in item 5, the effect of item 4 can be obtained with a simple configuration.

[0109] (Item 6) The reel holding device according to item 1, wherein the first reel holding portion comprises two support portions (support portions 41b) that support the outer circumference of the reel from below, and by changing the relative height of the two support portions, the reel supported by the two support portions falls from the first reel holding portion and is discharged.

[0110] According to the technology in item 6, the effect of item 5 can be obtained with a simple configuration.

[0111] (Item 7) The reel holding device according to item 6, wherein the second reel holding portion comprises two reel support members (movable roller 54 and reel support 45) that support the outer circumference of the reel from below, and when the distance between the two reel support members (distance KK) is widened and the distance becomes greater than the diameter of the reel (diameter DM), the reel is discharged from between the two reel support members.

[0112] According to the technology in item 7, the effect of item 6 can be obtained with a simple configuration.

[0113] (Item 8) The reel holding device according to item 7, wherein the reel discharged from the first reel holding portion moves to the second reel holding portion by passing between the support portion of the first reel holding portion that is closer to the regulating member and the regulating member, and the distance (distance KR) between the support portion and the regulating member after the reel has moved to the second reel holding portion is smaller than the diameter of the reel.

[0114] The technology described in item 8 ensures that the effects described in item 7 can be reliably obtained.

[0115] (Item 9) A component mounting device (component mounting device 10) comprising: a component supply unit that transports the component supply tape pulled out from the reel held by a reel holding device described in any of items 1 to 8 to supply components; and a work head that picks up the components supplied by the component supply unit and mounts them onto a circuit board (circuit board KB).

[0116] Since the component mounting device of item 9 has the reel holding device of item 1, the same effect as item 1 can be obtained.

[0117] While embodiments of the present disclosure have been described so far, the technology of the present disclosure is not limited to those described above, and various modifications are possible. For example, in the above-described embodiment, there were two reel holding mechanisms 33 (a rear reel holding mechanism 33P and a front reel holding mechanism 33Q), but the number of reel holding mechanisms 33 is not limited to two; there may be one, or three or more.

[0118] Furthermore, in the above-described embodiment, the regulating member was configured to be movable and swing like a pendulum, but other movable configurations such as sliding or telescopic may be used instead. [Industrial applicability]

[0119] The present invention provides a reel holding device and a parts mounting device that can prevent the reel from being lifted by the parts supply tape unwound from the reel, thereby hindering the normal parts supply operation of the parts supply unit. [Explanation of Symbols]

[0120] 10. Component mounting device 14H work head 22 Tape feeder (component supply unit) 23 Reel holding device 31J Shaft section (oscillating shaft) 33 Reel holding mechanism 33P Rear reel holding mechanism 33Q Front reel holding mechanism 41 Reel case (first reel holding part) 41P Rear reel case 41Q Front reel case 41b Support part 41J Rotary shaft 42 Operating lever 42P Rear control lever 42Q Front control lever 43 Reel discharge section 43P Rear reel discharge section 43Q Front reel discharge section 44 Ejectors 44P Rear Ejector 44Q Front ejector 45 Reel support (reel support member) 45P Rear reel support pin 45Q Front reel support 46 Anti-slip section 46P Rear anti-detachment section 46Q Front anti-detachment part 47 Reel ejection guide 51 Slider 52 Torsion spring 52P Rear torsion spring 52Q Front torsion spring 53 Bracket 54. Movable roller (reel support member) 55 Tension spring 55P Rear tension spring 55Q Front tension spring 56 Second reel holding section 56P Rear second reel holding part 56Q Front second reel holding part 61 Regulating member 61R Laura 62 Stopper component 63. Biasing spring (biasing means) KK interval KR distance BT component supply tape RL Reel DM diameter BH parts KB board

Claims

1. A reel holding device used in conjunction with a parts supply unit that holds a reel containing a parts supply tape in which parts are sealed, and supplies the parts to a work head while feeding the parts supply tape unwound from the reel, A first reel holding part that holds the reel, A second reel holding portion that holds the reel at a lower position than the first reel holding portion, The movement of the reel from the first reel holding portion to the second reel holding portion is permitted, but the movement of the reel that has moved to the second reel holding portion is restricted by the part supply tape being transported by the part supply unit, and A reel holding device equipped with [a specific feature].

2. The reel holding device according to claim 1, wherein the restricting member is pushed by the reel moving from the first reel holding portion toward the second reel holding portion, moves from a predetermined steady position to allow the reel to move, and returns to the steady position when the pressure from the reel is released.

3. The reel holding device according to claim 2, wherein the restricting member does not contact either the reel held by the first reel holding portion or the reel held by the second reel holding portion when in the steady position.

4. The reel holding device according to claim 2, further comprising a biasing means for biasing the regulating member toward the steady position.

5. The reel holding device according to claim 4, wherein the restricting member is pivotable about a pivot axis extending along the thickness direction of the reel, and is positioned in the steady position in contact with a stopper member that restricts the range of motion of the restricting member.

6. The reel holding device according to claim 1, wherein the first reel holding portion comprises two support portions that support the outer circumference of the reel from below, and the reel supported by the two support portions falls and is discharged from the first reel holding portion by changing the relative height of the two support portions.

7. The reel holding device according to claim 6, wherein the second reel holding portion comprises two reel support members that support the outer circumference of the reel from below, and when the distance between the two reel support members is widened and the distance becomes greater than the diameter of the reel, the reel falls and is discharged from between the two reel support members.

8. The reel holding device according to claim 7, wherein the reel discharged from the first reel holding portion moves to the second reel holding portion by passing between the support portion of the first reel holding portion that is closer to the regulating member and the regulating member, and the distance between the support portion and the regulating member after the reel has moved to the second reel holding portion is smaller than the diameter of the reel.

9. A parts supply unit that supplies parts by transporting the parts supply tape pulled out from the reel held by the reel holding device according to any one of claims 1 to 8, A work head that picks up components supplied by the component supply unit and mounts them onto a circuit board, A component mounting device equipped with the following features.

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