Carrier tape supply device and component mounting device

Abstract

To provide a carrier tape supply device whose compact configuration can be maintained even when the number of reels to be held is increased and a component mounting device.SOLUTION: A carrier tape supply device 1C comprises: a carriage 31; and two reel holding devices 32 that are attached to the carriage 31 and hold reels RL. The two reel holding devices 32 are mounted on the carriage 31 in a state of the two devices being arranged in parallel in a direction of sending carrier tapes CT. The carrier tapes CT are supplied from the reels RL held by the respective reel holding devices 32 to a component supply unit 22.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a carrier tape supplying device that holds a reel housing a carrier tape in which components are enclosed, and a component mounting device that includes this carrier tape supplying device. [Background technology]

[0002] Conventionally, component mounting devices are known that manufacture mounted boards by supplying components using a component supply unit and transferring the components to a board using a work head. There are various types of component supply units, but a tape feeder that transports a carrier tape containing components and supplies the components to a component supply port is widely used. Because a tape feeder draws in and transports the carrier tape unwound from a reel, the component mounting device requires a carrier tape supply device that holds the reel and supplies the carrier tape. Carrier tape supply devices are typically capable of holding a reel to be used first and a reel to be used next (see, for example, Patent Document 1 below).

[0003] In the carrier tape supply device described in Patent Document 1, the current reel used first is installed at the rear as viewed from the operator, and the replenishment reel used after the current reel is installed at the front as viewed from the operator. The current reel has the wound carrier tape directly supported by the carrier tape supply device, and when the carrier tape is pulled by the component supply unit, it rotates in place to unwind the carrier tape. When all the carrier tape has been unwound, it is no longer supported by the carrier tape supply device and automatically drops and is ejected to the outside. When the used reel is ejected, the component supply unit switches to pulling in the carrier tape from the replenishment reel. The replenishment reel is pulled by the component supply unit and rolls from its standby position, moving to the location where the current reel was located, automatically replacing the reel. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. 2017 / 061042 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the carrier tape supply device described in the above patent document, if the component supply unit becomes thinner and the number of reels arranged side by side in the width direction increases, the only option is to arrange an increased number of reels side by side in the width direction accordingly, which poses the problem of the carrier tape supply device becoming larger.

[0006] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a carrier tape supplying device and a component mounting device that can maintain a compact configuration even when the number of reels held increases. [Means for solving the problem]

[0007] The carrier tape supplying device of the present invention is a carrier tape supplying device used together with a component supplying unit that holds a reel containing a carrier tape containing components and supplies the components to a working head while feeding the carrier tape that is unwound from the reel, and includes a base body and two reel holding devices that are attached to the base body and hold two reels respectively, and the two reel holding devices are attached to the base body in a state where they are lined up in the feeding direction of the carrier tape, and the carrier tape is supplied from the reels held by each reel holding device to the component supplying unit, and the two reel holding devices So Each of the two reel holding devices holds two reels that supply carrier tape used in two adjacent component supply units, one of the two reel holding devices holds a reel that is used in one of the two adjacent component supply units, and the other of the two reel holding devices holds a reel that is used in the other of the two adjacent component supply units. The two reel holding devices each include a reel holder that holds the reel, a plurality of rollers that contact the reel in the reel holder to regulate the position of the reel, and an interlocking unit that interlocks the plurality of rollers. .

[0008] The component mounting device of the present invention comprises the carrier tape supply device of the present invention described above, a work head that removes components from the carrier tape and mounts them on a substrate, and a component supply unit that supplies components to the work head while feeding the carrier tape supplied from the carrier tape supply device. [Effects of the Invention]

[0009] According to the present invention, the carrier tape supply device can maintain a compact configuration even if the number of reels held increases. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a side view of a main part of a component mounting device according to an embodiment of the present invention; [Figure 2] 1 is a side view of a component supply device and a carrier tape supply device provided in a component mounting device according to an embodiment of the present invention. [Figure 3] FIG. 1 is a partial cross-sectional side view of a component supply device and a carrier tape supply device according to an embodiment of the present invention. [Figure 4] FIG. 1 is a side view of a carrier tape supply device according to an embodiment of the present invention. [Figure 5] FIG. 1 is a plan view of a carrier tape supply device according to an embodiment of the present invention; [Figure 6] 1 is an exploded side view of a carrier tape supply device according to an embodiment of the present invention; [Figure 7] 1A and 1B are a plan view and a side view, respectively, of a reel holding device (first reel holding device) according to an embodiment of the present invention; [Figure 8] 1A and 1B are a plan view and a side view, respectively, of a reel holding device (second reel holding device) according to an embodiment of the present invention; [Figure 9] FIG. 1 is a side view showing a state in which a reel holding device (first reel holding device) is attached to a carrier tape supplying device according to an embodiment of the present invention; [Figure 10] FIG. 1 is a side view showing a state in which a reel holding device is attached to a carrier tape supplying device according to an embodiment of the present invention. [Figure 11] FIG. 1 is a plan view of a carrier tape supply device in a state before being connected to a component supply device according to an embodiment of the present invention. [Figure 12] 1A and 1B are side views showing a state in which a carrier tape supplying device is connected to a component supplying device according to an embodiment of the present invention. [Figure 13] FIG. 1 is a plan view showing a state in which a carrier tape supplying device is connected to a component supplying device according to an embodiment of the present invention; [Figure 14] 1A, 1B, and 1C are side views showing a procedure for holding a reel in a reel holding device (first reel holding device) according to an embodiment of the present invention. [Figure 15] 1A, 1B, and 1C are side views showing a procedure for holding a reel in a reel holding device (first reel holding device) according to an embodiment of the present invention. [Figure 16] 10 is a side view showing an operation of setting a current reel in an insertion port of a reel holding device according to an embodiment of the present invention; [Figure 17] FIG. 1 is a side view showing a state in which a current reel is held in a first position of a reel holding device according to an embodiment of the present invention. [Figure 18] 10 is a side view showing an operation of moving a current reel held at a first position of the reel holding device to a second position according to the embodiment of the present invention; FIG. [Figure 19] FIG. 10 is a side view showing a state in which the current reel is held in the second position of the reel holding device according to the embodiment of the present invention. [Figure 20] 10 is a side view showing an operation of setting a refill reel in an insertion port of a reel holding device according to an embodiment of the present invention; [Figure 21] FIG. 1 is a side view showing a state in which a reel holding device holds a refill reel at a first position according to an embodiment of the present invention; [Figure 22] FIG. 10 is a side view showing a state in which an empty current reel is held in a second position of the reel holding device according to the embodiment of the present invention. [Figure 23]1 is a side view showing an operation of moving a reel held at a first position of a reel holding device to a second position and simultaneously ejecting a current reel at the second position in an embodiment of the present invention; FIG. DETAILED DESCRIPTION OF THE INVENTION

[0011] An embodiment of the present invention will be described with reference to the drawings. Fig. 1 shows a component mounting device 1 according to one embodiment of the present invention. The component mounting device 1 is a device for mounting components BH onto a substrate KB, and includes a mounting device main body 1A, a component supply device 1B, and a carrier tape supply device 1C.

[0012] In FIG. 1, the mounting device main body 1A includes a board transport unit 11, a work head 12, and a head moving mechanism 13. The board transport unit 11 includes a pair of transport conveyors 11a that are spaced apart in the left-right direction of FIG. 1 and extend in a direction perpendicular to the plane of FIG. 1. The board transport unit 11 transports the board KB using the pair of transport conveyors 11a and positions it at a predetermined work position. For ease of explanation, the transport direction of the board KB by the board transport unit 11 will be referred to as the X direction (left-right direction), and the up-down direction will be referred to as the Z direction. The direction perpendicular to both the X direction and the Z direction will be referred to as the Y direction (front-back direction). Furthermore, the right side of the Y direction in FIG. 1 will be referred to as the front, and the left side of FIG. 1 will be referred to as the rear.

[0013] The work head 12 is equipped with a nozzle 12N that extends downward, and picks up the component BH by supplying vacuum pressure to the nozzle 12N. The head movement mechanism 13 is made up of, for example, an XY table mechanism, and moves the work head 12 in the XY plane.

[0014] The component supply device 1B includes a feeder cart 21 and a component supply unit 22. The feeder cart 21 is equipped with wheels and is movable on a floor surface FL, and includes a table-like feeder base 21F on its upper portion that extends in the X direction (see FIGS. 2 and 3).

[0015] The component supply unit 22 is composed of a tape feeder and is detachably mounted on the feeder base 21F. The component supply unit 22 transports the carrier tape CT supplied from the carrier tape supply device 1C forward in the Y direction. The carrier tape CT individually contains a plurality of components BH arranged in a line, and the component supply unit 22 transports the carrier tape CT to continuously supply the components BH to the component supply port 22K.

[0016] After positioning the board KB using the board transport unit 11, the mounting device main body 1A moves the work head 12 using the head movement mechanism 13 to repeatedly perform a component transfer operation in which components BH supplied by the component supply device 1B are transferred onto the board KB. The component transfer operation consists of an operation in which the nozzle 12N picks up the components BH supplied by the component supply unit 22, and an operation in which the picked-up components BH are placed at the target placement position on the board KB. By repeating this component transfer operation, a mounted board is manufactured in which components BH are placed on the board KB.

[0017] Next, the carrier tape supplying device 1C will be described. The carrier tape supplying device 1C is a device that holds a plurality of reels RL around which carrier tape CT is wound, and supplies the carrier tape CT to the component supplying unit 22, and is used while connected to the feeder cart 21. The component supplying unit 22 attached to the feeder cart 21 draws in and transports the carrier tape CT that is unwound forward from the reel RL held by the carrier tape supplying device 1C, and supplies components BH to the mounting device main body 1A.

[0018] 1, the carrier tape supply device 1C holds a reel RL to be used first (hereinafter referred to as "current reel RL1") and a reel RL to be used after the current reel RL1 (hereinafter referred to as "supply reel RL2"). The current reel RL1 is a reel that pays out the carrier tape CT being transported by the component supply unit 22. The supplementary reel RL2 is a supplementary reel, that is, a reel that pays out the carrier tape CT to the component supply unit 22 as the new current reel RL1 after the current reel RL1 runs out of components.

[0019] In this embodiment, the carrier tape supply device 1C is used in conjunction with a component supply unit 22 that holds a reel RL containing a carrier tape CT and feeds the carrier tape CT unwound from the reel RL forward while supplying components BH to the work head 12.

[0020] 4, 5, and 6, the carrier tape supplying device 1C includes a carriage 31 as a base body, and a first reel holding device 32A and a second reel holding device 32B arranged side by side in the front-to-back direction. In this specification, when it is not necessary to distinguish between the first reel holding device 32A and the second reel holding device 32B, they will simply be referred to as reel holding devices 32. The carriage 31 includes a pair of carriage bases 41 on the left and right. Each carriage base 41 extends in the Y direction (front-to-back direction). Wheels 42 are provided on the front and rear undersides of each carriage base 41, respectively, and the carrier tape supplying device 1C can run on a floor surface FL using these four wheels 42. A pair of front and rear support columns 43 extend upward from the middle of each carriage base 41, and a pair of rear support columns 44 extend upward from the rear end of each carriage base 41.

[0021] 4, 5 and 6, the carriage 31 is provided with a pair of left and right arms 45 extending in the front-rear direction. Each arm 45 extends to connect the upper ends of two pairs of left and right front support columns 43 and rear support columns 44 positioned opposite each other in the Y direction.

[0022] 4, 5, and 6, the carriage 31 is provided with a connecting bar 46 extending in the left-right direction. The connecting bar 46 connects the left and right carriage bases 41 at their intermediate portions. A pair of left and right chuck mechanisms 47 extending forward is provided on the connecting bar 46. Each of the left and right chuck mechanisms 47 is provided with a pair of gripping members 47S that grip the connecting pin 21P (see FIG. 11) on the feeder cart 21 side that is inserted into a groove that opens forward. These two gripping members 47S are biased by a spring member (not shown) in a direction in which they press against each other (X direction).

[0023] 4, 5, and 6, the carriage 31 is provided with a front support bar 48 and a rear support bar 49 extending in the X direction. The front support bar 48 connects the front ends of the left and right arms 45, and the rear support bar 49 connects the middle portions of the left and right rear supports 44 in the height direction.

[0024] 4 and 6, the carriage 31 is provided with a discharge section 50 into which a used, empty reel RL that has run out of parts is discharged. The discharge section 50 has both ends in the X direction connected to the left and right carriage bases 41 and has a groove-like shape recessed downward.

[0025] 4, 5, and 6, the carriage 31 has left and right alignment sections 55. Each alignment section 55 is attached to the inner surface (facing surface) of the front end of each of the left and right carriage bases 41, and has a shape that protrudes inward (facing each other). The distance between the inner surfaces of the left and right alignment sections 55 is slightly larger than the distance between the outer surfaces of the feeder cart 21.

[0026] 3, 4, and 5, each reel holding device 32 (first reel holding device 32A and second reel holding device 32B) is configured to be able to hold one current reel RL1 and one replenishment reel RL2. One reel holding device 32 is configured to be able to hold the current reel RL1 and replenishment reel RL2 used in one component supply unit 22. Thus, the first reel holding device 32A holds the current reel RL1 and replenishment reel RL2 used in one component supply unit 22, and the second reel holding device 32B holds the current reel RL1 and replenishment reel RL2 used in another component supply unit 22.

[0027] Next, the first reel holding device 32A will be described with reference to Figure 7. The first reel holding device 32A includes a reel holder 51A that holds a reel RL, a plurality of rollers 81 that contact the held reel RL to determine the position of the reel RL within the reel holder 51A, and an interlocking unit 80 that interlocks the plurality of rollers 81. As shown in Figures 7(a) and (b), the reel holder 51A includes a pair of guide plates 61 that face each other in the X direction, a first guide member 62, and a second guide member 63.

[0028] The first guide member 62 is provided between the two guide plates 61 and maintains a constant distance between the two guide plates 61 (slightly larger than the width of the reel RL). The second guide member 63, like the first guide member 62, is also provided between the two guide plates 61 and functions as a spacer that maintains a constant distance between the two guide plates 61. The second guide member 63 is located below the pair of guide plates 61. The upper surface of the second guide member 63 forms an inclined surface 63M facing rearward. The reel holder 51A can hold the reel RL in the space surrounded by the pair of guide plates 61, the first guide member 62, and the second guide member 63.

[0029] In Figure 7(b), reel holder 51A has an insertion opening 71A through which a reel RL is inserted and an ejection opening 72A through which the reel RL is ejected. The insertion opening 71A is located at the upper rear side of reel holder 51A, and the insertion opening 72A is located at the lower rear side of reel holder 51A. The reel RL inserted through the insertion opening 71A can move to the ejection opening 72A while being guided between a pair of guide plates 61 by a guide member consisting of a first guide member 62 and a second guide member 63. In other words, reel holder 51A has a movement path WA (indicated by a chain arrow in Figure 7(b)) for the reel RL formed by the pair of guide plates 61, the first guide member 62, and the second guide member 63.

[0030] 7(b), the reel holder 51A is fitted with the aforementioned interlocking unit 80 which interlocks a plurality of rollers 81. The interlocking unit 80 is made up of a swinging member 52, which is an example of an interlocking member, and a coil spring 82, which is an example of an elastic member. In this embodiment, the swinging member 52 has an overall shape with arms extending in three directions from the center (generally roughly Y-shaped), and a roller 81 is attached to the end of each arm.

[0031] The center of the swinging member 52 is pivotally supported on a shaft 52a attached to the guide plate 61 and extending in a direction along the X-axis. This allows the swinging member 52 to rotate around the shaft 52a within the plane of the guide plate 61 (within the YZ plane). The swinging member 52 is attached to the reel holder 51A with two rollers 81 aligned approximately in the front-to-rear direction, and the other roller 81 positioned below the other two rollers 81. Of the two rollers 81 aligned in the front-to-rear direction, the roller 81 positioned behind the shaft 52a is referred to as the first roller 81a, and the roller 81 positioned in front of the shaft 52a is referred to as the second roller 81b. The roller 81 positioned below the shaft 52a is referred to as the third roller 81c.

[0032] The range of rotation of the swinging member 52 is restricted by an arc-shaped guide groove 61g formed in the guide plate 61, and the swinging member 52 can swing within the range restricted by the guide groove 61g. This allows the swinging member 52 to take a position (first state) shown by the solid line in Figure 7(b) and a position (second state) shown by the dashed line. When the position of the swinging member 52 changes between the first state and the second state, the positions of the three rollers 81 also change.

[0033] When the swinging member 52 is in the first state, the first roller 81a and the second roller 81b support from below the reel RL held at the position indicated by the two-dot chain circle in Figure 7(b) (hereinafter referred to as the first position H1A). The first position H1A is located near the insertion opening 71A of the reel holder 51A, and holds the reel RL with at least a portion of it inserted between the pair of guide plates 61.

[0034] 7(b) (hereinafter referred to as second position H2A) from moving toward the outlet 72A. The second position H2A is located midway along the movement path WA of the reel RL from the first position H1A to the outlet 72A, and is lower than the first position H1A. The second roller 81b prevents the reel RL located at the first position H1A from moving along the movement path WA toward the second position H2A.

[0035] In this way, the second roller 81b abuts against the outer periphery of the reel RL located at the first position H1A, and serves as a first abutment portion that prevents the reel RL located at the first position H1A from moving to the second position H2A. The third roller 81c abuts against the outer periphery of the reel RL located at the second position H2A, and serves as a second abutment portion that prevents the reel RL located at the second position H2A from moving to the exit.

[0036] 7(b), when the swinging member 52 is in the second state, the second roller 81b and the third roller 81c move to positions that do not prevent the reel RL from moving along the movement path WA. This allows the reel RL from the first position H1A to move to the second position H2A, and the reel RL from the second position H2A to move to the discharge opening 72A. In other words, by changing from the first state to the second state, the swinging member 52 retracts the second roller 81b (first contact portion) and the third roller 81c (second contact portion) from positions that prevent the reel RL from moving.

[0037] 7(b), a coil spring 82 that maintains the swinging member 52 in the first state by its elastic force is provided near the insertion port 71A inside the reel holder 51A. The elastic force of the coil spring 82 is set to a magnitude that prevents the swinging member 52 from swinging under its own weight even when the reel RL fully loaded with carrier tape CT is held at the first position H1A and the second position H2A. However, when an external force acts on the swinging member 52 that is large enough that the elastic force cannot maintain the first state, the swinging member 52 swings about the shaft 52a against the elastic force of the coil spring 82.

[0038] In FIG. 7(b), a reel presser 83 is provided at the first position H1A of the reel holder 51A. The reel presser 83 is composed of a pressure spring 83a and a pressure roller 83b. The upper end of the pressure spring 83a is fixed to the reel holder 51A, and the pressure roller 83b is attached to the lower end of the pressure spring 83a. Therefore, when the pressure roller 83b is pressed from below, the pressure spring 83a is compressed, and a biasing force is generated in the pressure spring 83a to return the pressure roller 83b to its original position. When the component supply unit 22 pulls out the carrier tape CT from the reel RL installed at the first position H1A, the reel RL may be pulled up by the carrier tape CT, but the reel presser 83 prevents the reel RL from being lifted. The insertion opening 71A of the reel holder 51A is located between the first roller 81a and the pressure roller 83b of the reel presser 83.

[0039] 6 and 7(b), a hook 91 is provided at the upper center of the reel holder 51A. The hook 91 is attached to the guide plates 61 with a portion thereof sandwiched between them by a screw or the like. The hook 91 engages with the front support bar 48 of the carriage 31 and attaches the first reel holding device 32A in a suspended state to the front support bar 48. A posture stabilization roller 92 is provided at the lower end of the first reel holding device 32A. This posture stabilization roller 92 is provided for the purpose of stabilizing the posture of the first reel holding device 32A when it is attached in a suspended state to the front support bar 48, and stabilizes the posture of the first reel holding device by abutting against the connecting bar 46 of the carriage 31. A connecting bar 93 is provided at the rear of the first reel holding device 32A. The connecting bar 93 is a rod-shaped member extending in the X direction and is fixed in a sandwiched state between the pair of guide plates 61. Here, the front support bar 48 and rear support bar 49 provided on the carriage 31 serve as reel holding device mounting sections to which multiple reel holding devices 32 (first reel holding device 32A and second reel holding device 32B) can be attached and detached.

[0040] Next, the second reel holding device 32B will be described with reference to FIGS. 8(a) and 8(b). Components having the same structure as the first reel holding device 32A are designated by the same reference numerals, and detailed description thereof will be omitted. The second reel holding device 32B includes a reel holder 51B that holds a reel RL, a plurality of rollers 81 that contact the held reel RL to determine the position of the reel RL within the reel holder 51B, and an interlocking unit 80 that interlocks the plurality of rollers 81. As shown in FIGS. 8(a) and 8(b), the reel holder 51B includes a pair of guide plates 64 that face each other in the X direction, a spacer 65, a third guide member 66, and a connecting hook 94. The interlocking unit 80 is the same as that described in the description of the first reel holding device 32A.

[0041] The spacer 65, third guide member 66, and connecting hook 94 are provided between the two guide plates 64 and maintain a constant distance between the two guide plates 64 (slightly larger than the axial dimension of the reel RL). These members function as spacers that maintain a constant distance between the two guide plates 64. The third guide member 66 is located below the pair of guide plates 64. The top surface of the third guide member 66 forms an inclined surface 66M facing rearward. The reel holder 51B can hold the reel RL in the space surrounded by the pair of guide plates 64, the spacer 65, the third guide member 66, and the connecting hook 94.

[0042] 8(b), the reel holder 51B has an insertion opening 71B through which the reel RL is inserted and an ejection opening 72B through which the reel RL is ejected. The insertion opening 71B is located at the upper rear side of the reel holder 51B, and the insertion opening 72B is located at the lower rear side of the reel holder 51B. The reel RL inserted through the insertion opening 71B can move to the ejection opening 72B while being guided between a pair of guide plates 64 by a connecting hook 94 and a third guide member 63 (guide member). In other words, the reel holder 51B has a movement path WB (indicated by a chain arrow in FIG. 8(b)) for the reel RL, which is formed by the pair of guide plates 64, the connecting hook 94, and the third guide member 66.

[0043] In FIG. 8(b), a linking unit 80 that links multiple rollers 81 is attached to the reel holder 51B. This linking unit 80 has the same structure as that equipped in the first reel holding device 32A and is composed of a swinging member 52 and a coil spring 82. The swinging member 52 has a rotation range restricted by an arc-shaped guide groove 64g formed in a guide plate 64, and can swing within the range restricted by the guide groove 64g. As a result, in the second reel holding device 32B as well, the swinging member 52 can take a position indicated by the solid line in FIG. 8(b) (first state) and a position indicated by the dashed line (second state). When the position of the swinging member 52 changes between the first state and the second state, the positions of the three rollers 81 also change.

[0044] 8(b), when the swinging member 52 is in the first state, the first roller 81a and the second roller 81b support from below the reel RL held at the first position H1B. The first position H1B is located near the insertion opening 71B of the reel holder 51B and holds the reel RL with at least a portion of it inserted between the pair of guide plates 64. The third roller 81c prevents the reel RL held at the second position H2B from moving toward the discharge opening 72B. The second position H2B is located midway along the movement path WB of the reel RL from the first position H1B to the discharge opening 72B and is located at a lower position than the first position.

[0045] The second roller 81b prevents the reel RL located at the first position H1B from moving along the movement path WB to the second position H2B. In the second reel holding device 32B, the second roller 81b also abuts against the outer periphery of the reel RL located at the first position H1B, serving as a first abutment portion that prevents the reel RL located at the first position H1B from moving to the second position H2B, and the third roller 81c abuts against the outer periphery of the reel RL located at the second position H2B, serving as a second abutment portion that prevents the reel RL located at the second position H2B from moving to the exit.

[0046] 8(b), when the swinging member 52 is in the second state, the second roller 81b and the third roller 81c move to positions that do not prevent the reel RL from moving along the movement path WB. This allows the reel RL from the first position H1B to move to the second position H2B, and the reel RL from the second position H2B to move to the discharge opening 72B. In other words, by changing from the first state to the second state, the swinging member 52 retracts the second roller 81b (first contact portion) and the third roller 81c (second contact portion) from positions that prevent the reel RL from moving.

[0047] 8(b), a reel presser 83 is provided at the first position H1B of the reel holder 51B. The reel presser 83 is composed of a pressure spring 83a and a pressure roller 83b. The function of the reel presser 83 has been described in the explanation of the first reel holding device 32A, so a detailed explanation will be omitted.

[0048] 6 and 8(b), a connecting hook 94 is provided at the front end of the reel holder 51B (pair of guide plates 61) of the second reel holding device 32B. A hook 95 is provided at the rear end of the second reel holding device 32B. The connecting hook 94 and hook 95 are attached to the pair of guide plates 64 with screws or the like at a position sandwiched between them. The hook 95 engages with the rear support bar 49 of the carriage 31 and is a part that is mounted on the rear support bar 49. The connecting hook 94 engages with the connecting bar 93 of the first reel holding device 32A. In other words, the second reel holding device 32B is attached to the carriage 31 while being supported by the rear support bar 49 and the connecting bar 93 of the first reel holding device 32A.

[0049] When attaching the first reel holding device 32A and the second reel holding device 32B to the dolly 31, the worker first attaches the first reel holding device 32A to the dolly 31. When attaching the first reel holding device 32A to the dolly 31, the hook 91 is engaged with the front support bar 48 of the dolly 31, and the posture stabilization roller 92 is brought into contact with the connecting bar 46 of the dolly 31 from behind (FIG. 9). The center of gravity of the first reel holding device 32A is located behind a position directly below the front support bar 48, and the first reel holding device 32A, with the hook 91 engaged with the front support bar 48 and the posture stabilization roller 92 in contact with the connecting bar 46, is pressed against the connecting bar 46 by its own weight, and is therefore stably supported by the dolly 31.

[0050] After the first reel holding device 32A has been attached to the carriage 31 as described above, the worker engages the connecting hook 94 with the connecting bar 93 of the first reel holding device 32A from above, and also engages the hook 95 with the rear support bar 49 of the carriage 31 from above (FIG. 10). This causes the second reel holding device 32B to be stably supported by the carriage 31. A portion of the second reel holding device 32B is directly supported by the carriage 31 (more specifically, the rear support bar 49), while another portion is indirectly supported by the carriage 31 via the first reel holding device 32A attached to the carriage 31 (more specifically, the connecting bar 93).

[0051] 5 and 6, the front support bar 48 and the rear support bar 49 are round bars with smooth surfaces. Therefore, the hook 91 of the first reel holding device 32A is slidable along the X-axis while engaged with the front support bar 48. Similarly, the hook 95 of the second reel holding device 32B is slidable along the X-axis while engaged with the rear support bar 49. Therefore, the first reel holding device 32A and the second reel holding device 32B are slidable in the direction along the X-axis relative to the cart 31. Therefore, the base body (cart 31) includes reel holding device support portions (front support bar 48 and rear support bar 49) that support a plurality of reel holding devices 32 arranged in the parallel direction in which a plurality of component supply units 22 are arranged side by side, and the reel holding device support portions support the reel holding devices 32 slidably in the parallel direction. With this configuration, the position of the first reel holding device 32A or the second reel holding device 32B can be changed in the X direction by sliding it, even after it has been attached to the carriage 31. As a result, even when an operator wants to temporarily change the position of the reel holding device 32 for work, inspection, or confirmation, the operator does not need to remove the reel holding device 32 from the carriage 31, but can simply slide it along the front support bar 48 or the rear support bar 49.

[0052] 3, feeder cart 21 of component supply device 1B has a receiving space 21S in its center that is open to the rear. Feeder cart 21 also has horizontal beams 21B at its rear that extend in the X direction, and a pair of left and right connecting pins 21P that protrude downward from the underside of horizontal beams 21B.

[0053] When connecting the carrier tape supplying device 1C to the feeder cart 21 of the component supplying device 1B, the worker first positions the carrier tape supplying device 1C behind the feeder cart 21, as shown in Fig. 11. After positioning the carrier tape supplying device 1C behind the feeder cart 21, the worker moves the carrier tape supplying device 1C closer to the feeder cart 21 (Fig. 12(a) → Fig. 12(b)). As a result, the leading portion of the carrier tape supplying device 1C (leading portions of the left and right carriage bases 41) moves toward the inside of the feeder cart 21 with the inner surfaces of the left and right alignment portions 55 being guided by the outer surfaces of the feeder cart 21.

[0054] As the carrier tape supplying device 1C advances toward the inside of the feeder cart 21, the leading end of the carrier tape supplying device 1C is positioned in the lateral direction (X direction) relative to the feeder cart 21 by the left and right alignment units 55. Then, as the carrier tape supplying device 1C advances further, the connecting bar 46 of the carriage 31 abuts against a predetermined position on the feeder cart 21 from behind, and the carrier tape supplying device 1C is positioned in the front-rear direction (Y direction).

[0055] When the carriage 31 is positioned in the Y direction relative to the feeder cart 21, the left and right connecting pins 21P provided on the feeder cart 21 are wedged between the left and right gripping members 47S of the left and right chuck mechanisms 47 provided on the carrier tape supplying device 1C. As a result, the left and right connecting pins 21P are chucked by the left and right chuck mechanisms 47 (FIG. 13), and the carrier tape supplying device 1C becomes connected to the feeder cart 21 (FIG. 12(b)).

[0056] 2, when the carrier tape supply device 1C is connected to the feeder cart 21, the first reel holding device 32A is inserted into the receiving space 21S of the feeder cart 21. When the carriage 31 is pulled rearward away from the feeder cart 21 while the connecting pin 21P is chucked by the chuck mechanism 47, the connecting pin 21P pushes open the left and right gripping members 47S, releasing the chuck and allowing the carriage 31 to be separated from the feeder cart 21.

[0057] Next, using Figures 14(a), (b), (c) and 15(a), (b), (c), we will explain the procedure for holding a reel RL in the first reel holding device 32A and the procedure for ejecting the held reel RL from the first reel holding device 32A. Figures 14(a), (b), (c) and 15(a), (b), (c) use the first reel holding device 32A as an example, but the second reel holding device 32B can also hold a reel RL and eject the reel RL using the same procedure.

[0058] When a reel RL is to be held in the first reel holding device 32A that does not currently hold a reel RL, the reel RL to be the current reel RL1 is first inserted into the insertion port 71A of the reel holder 51A (arrow S shown in FIG. 14(a)). Then, the reel RL is supported by the first roller 81a and the second roller 81b attached to the swinging member 52 in the first state (FIG. 14(a)). In this way, the reel holder 51A holds the reel RL at the first position H1A.

[0059] When the reel RL is positioned in the first position, its outer periphery is stably held by the three rollers 81 (first roller 81a, second roller 81b, and pressure roller 83b), so even if the carrier tape CT is pulled out from this state, the reel RL does not move in that direction but rotates in place to unwind the carrier tape CT. Also, when the swinging member 52 is in the first state, the second roller 81b and the third roller 81c are positioned to prevent the reel RL from moving along the movement path WA.

[0060] When the operator pushes the reel RL, which is held in the first position H1A, into the reel holder 51A (arrow P shown in FIG. 14(b)), an external force acts on the second roller 81b. As a result, the swinging member 52 swings downward and forward against the elastic force of the coil spring 82, and the second roller 81b also moves (FIG. 14(b)). That is, the second roller 81b moves to a position where it does not interfere with the movement of the reel RL, and at the same time, the swinging member 52 changes its position from the first state to the second state. As a result, the reel RL passes over the second roller 81b and falls onto the inclined surface 63M of the second guide member 63 due to its own weight (FIG. 14(c)).

[0061] When the reel RL passes above the second roller 81b, the swinging member 52 returns from the second state to the first state due to the elastic force of the coil spring 82 (FIG. 14(c)). Accompanying this return, the third roller 81c also returns to a position that prevents the reel RL from moving. As a result, the reel RL, which rolls on the inclined surface 63M and attempts to move toward the discharge opening 72A, comes into contact with the returned third roller 81c and stops (FIG. 14(c)).

[0062] The reel RL, which has been moved from the first position H1A along the movement path WA in this manner, is held at the second position H2A where it abuts against the inclined surface 63M and the third roller 81c. Since the outer periphery of the reel RL positioned at the second position is stably supported by the inclined surface 63M and the third roller 81c, even if the carrier tape CT is pulled out from this state, the reel RL does not move in that direction but rotates in place to unwind the carrier tape CT.

[0063] Once the reel RL (current reel RL1) is positioned at the second position as described above, the operator then inserts a new reel RL (supply reel RL2) into the insertion port 71A of the reel holder 51A (arrow S shown in FIG. 15(a)). The supplementary reel RL2 inserted into the insertion port 71A is held at the first position in the manner described above (FIG. 15(a)). In this state, the current reel RL1 is held at the second position, and the supplementary reel RL2 is held at the first position.

[0064] When the operator pushes the refill reel RL2 forward, the second roller 81b moves to a position where it does not interfere with the movement of the reel RL, and at the same time, the swinging member 52 changes its position from the first state to the second state. The third roller 81c also moves in conjunction with the movement of the second roller 81b to a position where it does not interfere with the movement of the reel RL (FIG. 15(b)). As a result, the current reel RL1, which had been prevented from falling by the third roller 81c, rolls down the inclined surface 63M and is discharged from the discharge opening 72A of the reel holder 51A (FIG. 15(b)).

[0065] Furthermore, the refill reel RL2 falls downward after passing the second roller 81b and moves to the second position H2A where the current reel RL1 was discharged. Then, the movement is blocked (positioned at the second position) by the returned third roller 81c (FIG. 15(c)), and the state becomes the same as FIG. 14(c)).

[0066] As described above, the reel holding device 32 (first reel holding device 32A, second reel holding device 32B) in this embodiment has an insertion opening 71 (71A, 71B) and an ejection opening 72 (72A, 72B) located below the insertion opening 71 and from which the reel RL is ejected, and includes reel holders 51 (51A, 51B) that can hold one reel RL at each of a first position H1 (H1A, H1B) near the insertion opening 71 and a second position H2 (H2A, H2B) located on the movement path W (WA, WB) of the reel RL from the first position H1 to the ejection opening 72, and a first The reel RL includes a first contact portion (second roller 81b) that contacts the outer periphery of the reel RL located at position H1 to prevent the reel RL from moving to the second position H2, a second contact portion (third roller 81c) that prevents the reel RL located at second position H2 from moving to the discharge outlet 72, and an interlocking portion 80 (swinging member 52, coil spring 82) that interlocks the first contact portion (second roller 81b) and the second contact portion (third roller 81c) to move the first contact portion (second roller 81b) and the second contact portion (third roller 81c) away from the position that prevents the reel RL from moving.

[0067] The third roller 81c is retracted from and returned to the position that prevents the movement of the reel RL in conjunction with the movement of the second roller 81b by the interlocking portion 80. Therefore, the reel holding device 32 in this embodiment is configured to be able to move the reel RL from the first position H1 to the second position H2 and eject the reel RL from the second position H2 with a single action, i.e., by pushing the reel RL that is located at the first position H1 to the second position H2.

[0068] Therefore, when an operator wishes to eject a reel RL held at the second position, which is at the rear of the reel holder 51 from the operator's perspective, the operator can retrieve the reel RL at any timing simply by swinging the swinging member 52. As shown in Figure 15(a), when reels RL are held at both the first position H1 and the second position H2 and only the reel RL positioned at the second position H2 is to be retrieved, the reel RL positioned at the first position H1 can be pressed toward the inside of the reel holder 51, but when the operator also wishes to retrieve the reel RL positioned at the first position H1, the operator first pulls the reel RL2 rearward from the insertion port 71 and then sets the swinging member 52 to the second state.

[0069] Here, the reel RL held by the first reel holding device 32A and the reel RL held by the second reel holding device 32B are reels RL that feed the carrier tape CT to two component supply units 22 that are mounted adjacent to each other in the X direction of the feeder base 21F. Therefore, for example, if the reel RL held by the first reel holding device 32A feeds the carrier tape CT to the component supply unit 22 located in front of it, the reel RL held by the second reel holding device 32B feeds the carrier tape CT to the component supply unit 22 located adjacent to it.

[0070] 5, in this embodiment, the width dimension T of the first reel holding device 32A and the second reel holding device 32B is larger than the width dimension U1 of one component supply unit 22, but is equal to or smaller than the width dimension U2 of the space occupied by two component supply units 22 mounted adjacent to each other on the feeder base 21F. Therefore, by arranging the first reel holding device 32A and the second reel holding device 32B in series in the feed direction of the carrier tape CT, it is possible to arrange the multiple reels RL required for the two component supply units 22 within the width dimension U2. This eliminates the need to increase the width dimension of the carrier tape supply device 1C that supplies the reels RL required for all component supply units 22 mounted on the feeder base 21F, and allows the carrier tape supply device 1C to have a compact configuration.

[0071] 12(b) and 13, when the carrier tape supplying device 1C is connected to the feeder cart 21 of the component supplying device 1B, the following describes the procedure for setting the reel RL in the two reel holding devices 32 (first reel holding device 32A and second reel holding device 32B) provided in the carrier tape supplying device 1C so that the component supplying unit 22 can perform the component supply operation. In this case, the worker first causes the two reel holding devices to hold the reel RL.

[0072] To do this, first, the reels RL are inserted into the insertion ports 71 of the reel holders 51 of the two reel holding devices 32, and the reels RL are held at the first positions H1 of the reel holders 51 (FIG. 16). Once the reels RL are held at the first positions H1 of the reel holders 51, the worker pulls out the carrier tape CT from each reel RL and inserts its leading end into the tape insertion port 22G at the rear of the corresponding component supply unit 22 (FIG. 17).

[0073] The component supply unit 22 into which the leading end of the carrier tape CT has been inserted starts to pull in the carrier tape CT. As a result, the reel RL held at the first position of each reel holder 51 is pulled forward (toward the component supply unit 22) through the carrier tape CT. The reel RL rotates at the first position H1 and unwinds the carrier tape CT without moving from the first position H1.

[0074] When the carrier tape CT with its leading edge inserted is pulled in by the component supply unit 22, the operator pushes the reel RL held at the first position H1 toward the rear (front) of the reel holder 51 (see P in FIG. 14(b)). This causes the swing member 52 to swing clockwise in FIG. 17 (FIG. 18), and the reel RL drops to the second position H2A. The reel RL at the second position H2 is supported by the second guide member 63, and is prevented from moving toward the discharge opening 72 by the third roller 81c. The reel RL (current reel RL1) positioned at the second position H2 continues to have the carrier tape CT pulled by the component supply unit 22, but the reel RL rotates at the second position H2 and unwinds the carrier tape CT without moving from the second position H2.

[0075] After the worker positions the current reel RL1 at the second position in each of the first reel holding device 32A and the second reel holding device 32B, the worker inserts a new reel RL (supply reel RL2) into the insertion port 71 of the reel holder 51 of each of the first reel holding device 32A and the second reel holding device 32B (FIG. 20). Once the supply reel RL2 is held in the first position H1 of each reel holder 51, the worker pulls out the carrier tape CT from each supply reel RL2 and inserts its leading end into the tape insertion port 22G at the rear of the corresponding component supply unit 22 (FIG. 21).

[0076] As the supply of components BH by the component supply unit 22 progresses and the current reel RL1 runs out of components and becomes a used reel RL, the component supply unit 22 switches the target to be pulled in to the carrier tape CT being unwound from the replenishment reel RL2 held at the first position H1, and continues to supply components BH (FIG. 22). When the operator moves the replenishment reel RL2 to the first position H1 and removes the used reel RL from the second position H2, the operator pushes the replenishment reel RL2 forward, i.e., toward the second position H2 (see arrow P shown in FIG. 15(b)).

[0077] When the operator pushes the refill reel RL2 forward, the swinging member 52 swings against the elastic force of the coil spring 82 (FIG. 23). As a result, the third roller 81c moves in conjunction with the movement of the second roller 81b to a position where it does not interfere with the movement of the reel RL. Then, the used reel RL (current reel RL1) held in the second position rolls on the inclined surface 63M and is discharged from the discharge port 72 to the outside of the reel holder 51 (FIG. 23). In addition, the refill reel RL2 held in the first position drops and moves to the second position (FIG. 23). The state in which the refill reel RL2 is positioned in the second position is the same as the state in FIG. 19 (however, the refill reel RL2 positioned in the second position becomes the new current reel RL1). Therefore, by repeatedly performing the same operations, the component supply operation by the component supply unit 22 can be continued.

[0078] As described above, the reel holding device 32 included in the component mounting device 1 of this embodiment is provided with a swinging member 52 that, in the first state, holds the reel RL at the first position H1 and the second position H2 of the reel holder 51 and positions the second roller 81b and the third roller 81c at positions that prevent the reel RL from moving, and that, when the first state is changed to the second state, moves the second roller 81b and the third roller 81c away from the positions that prevent the reel RL from moving. That is, the swinging member 52 is an interlocking member that interlocks the second roller 81b and the third roller 81c. Therefore, when the second roller 81b is pushed and moved by the reel RL, the third roller 81c also moves in conjunction with the movement. As a result, the reel RL, whose movement was restricted by the second roller 81b and the third roller 81c, becomes movable, and the reel RL at the second position is discharged to the discharge port 72, and the reel RL at the first position H1 moves to the second position H2.

[0079] As described above, in the reel holding device 32 of this embodiment, the swinging member 52 that swings inside the reel holder 51 is used as the interlocking member, so the second roller 81b and the third roller 81c can be interlocked with a small number of parts. Also, because the interlocking unit 80 including the interlocking member is activated by external force, the reel RL can be discharged at the timing intended by the worker. Therefore, in the parts replenishing work that uses the information attached to the empty reel RL, the work error of mistaking the empty reel RL can be reduced.

[0080] In a configuration in which a reel is supported via a carrier tape, as in the conventional reel holding device described in Patent Document 1, the entire weight of the reel acts on the carrier tape, which can cause significant friction on the surface of the carrier tape as it is pulled out from the reel, potentially damaging components, or static electricity generated by the friction. There is also a risk that the feed motor of the component supply unit that pulls in the carrier tape may malfunction or have a shorter service life due to excessive load. In contrast, in the reel holding device 32 of this embodiment, the roller 81 that supports the reel RL does not support the reel RL by contacting the carrier tape CT wound around the reel RL. This eliminates friction on the carrier tape CT due to the weight of the reel RL or the carrier tape CT, eliminating the risk of damaging the carrier tape CT.

[0081] Furthermore, in the carrier tape supplying device 1C of this embodiment, two reel holding devices 32 are arranged side by side in the feed direction (Y direction) of the carrier tape CT and are attached to the carriage 31 in a connected state. This allows the width dimension T (FIG. 5) to be smaller than when two reel holding devices 32 are arranged side by side in the width direction (X direction) of the carrier tape CT, and even if the number of component supply units 22 attached to the feeder base 21F increases and the number of reels RL to be held accordingly increases, it is possible to prevent the carrier tape supplying device 1C from becoming larger.

[0082] Furthermore, one of the two reel holding devices 32 (first reel holding device 32A) is supported by the carriage 31, while the other of the two reel holding devices 32 (second reel holding device 32B) is supported by the first reel holding device 32A, which is one of the reel holding devices 32, and the carriage 31. In other words, the first reel holding device 32A functions as a support member that supports a part of the second reel holding device 32B, and the configuration of the carriage 31 can be simplified accordingly, which also prevents the carrier tape supplying device 1C from becoming larger.

[0083] As described above, the carrier tape supplying device 1C in this embodiment includes the carriage 31 as a base body and two reel holding devices 32 (first reel holding device 32A and second reel holding device 32B) attached to the carriage 31 to hold the reels RL. These two reel holding devices 32 are arranged side by side in the feed direction of the carrier tape CT and are attached to the carriage 31 in a connected state. This allows the two reel holding devices 32 to be accommodated within the width direction dimension of the space occupied by the two component supply units 22 attached adjacent to the feeder base 21F. Therefore, even if the number of component supply units 22 attached to the feeder base 21F increases and the number of reels RL to be held thereby increases, the carrier tape supplying device 1C can be prevented from becoming larger and can maintain a compact configuration.

[0084] Furthermore, one of the two reel holding devices 32 (first reel holding device 32A) is supported by the carriage 31, while the other of the two reel holding devices 32 (second reel holding device 32B) is supported by the first reel holding device 32A, which is one of the reel holding devices 32, and the carriage 31. In other words, the first reel holding device 32A functions as a support member that supports a part of the second reel holding device 32B. This simplifies the configuration of the carriage 31, and in this respect, the carrier tape supplying device 1C can be prevented from becoming large and a compact configuration can be maintained.

[0085] While the present invention has been described above in terms of an embodiment, it is not limited to the above and various modifications are possible. For example, in the above embodiment, the swinging member 52 has a generally Y-shape overall, but any other structure may be used as long as it can move the first contact portion (second roller 81b) and the second contact portion (third roller 81c) in conjunction with each other to retract the reel RL from a position where it prevents the reel RL from moving. Furthermore, in the present embodiment, the swinging member 52 is used as an example of an interlocking member, but as long as it is a mechanism that can move the first contact portion (second roller 81b) and the second contact portion (third roller 81c) in conjunction with each other to retract the reel RL from a position where it prevents the reel RL from moving, it may be a combination of components such as a member that performs a movement other than swinging, a link, or a cam.

[0086] Furthermore, in the above-described embodiment, the first reel holding device 32A of the two reel holding devices 32 is supported by the carriage 31, and the second reel holding device 32B is supported by the first reel holding device 32A and the carriage 31. However, the second reel holding device 32B may be supported by the carriage 31, and the first reel holding device 32A may be supported by the second reel holding device 32B and the carriage 31.

[0087] It goes without saying that the reel holding device 32 and the component mounting device 1 in this embodiment can also be used under operations that do not require component matching when replenishing components, and component matching is not a required component. [Industrial Applicability]

[0088] The present invention can be used in a carrier tape supplying device that supplies a carrier tape wound around a reel, and a component mounting device that removes components from the carrier tape supplied from the carrier tape supplying device and mounts them on a board. [Explanation of symbols]

[0089] 1. Parts mounting device 1A Main unit of the equipment 1B Parts supply device 1C Carrier tape supply device 12 working heads 22 Parts supply unit 31 Cart (base body) 32 Reel holding device 32A First reel holding device 32B Second reel holding device 48 Front support bar (reel holding device support part) 49 Rear support bar (reel holding device support part) 51, 51A, 51B Reel holder 52 Swinging member 61,64 Guide plate 62 First guide member 63 Second guide member 66 Third guide member 71,71A,71B Inlet 72,72A,72B outlet 80 Interlocking part 81 Laura 81a First Roller 81b Second Roller 81c Third Roller 82 Coil spring 83 Reel holder 83a Presser spring 83b Presser roller H1, H1A, H1B 1st position H2, H2A, H2B 2nd position RL Reel RL1 Current Reel RL2 Refill Reel CT carrier tape BH parts

Claims

1. A carrier tape supply device used together with a component supply unit that holds a reel containing a carrier tape containing components and supplies the components to a work head while feeding the carrier tape that is unwound from the reel, A base body; two reel holding devices attached to the base body and holding two reels, respectively; the two reel holding devices are attached to the base body in a state where the two reel holding devices are arranged side by side in the feeding direction of the carrier tape, and the carrier tape is supplied from the reels held by each reel holding device to a component supply unit; each of the two reel holding devices holds two reels that supply carrier tape used in two adjacent component supply units, one of the two reel holding devices holds a reel that is used in one of the two adjacent component supply units, and the other of the two reel holding devices holds a reel that is used in the other of the two adjacent component supply units; A carrier tape supply device, wherein each of the two reel holding devices comprises a reel holder that holds the reel, a plurality of rollers that contact the reel within the reel holder to regulate the position of the reel, and a linkage unit that links the plurality of rollers.

2. 2. The carrier tape supply device according to claim 1, wherein one of the two reel holding devices is supported by the base body, and the other of the two reel holding devices is supported by the one reel holding device and the base body.

3. 2. The carrier tape supply device according to claim 1, wherein the base body includes a reel holding device support portion that supports a plurality of the two reel holding devices in a parallel direction in which the component supply units are arranged side by side, and the reel holding device support portion supports each of the two reel holding devices slidably in the parallel direction.

4. 4. The carrier tape supply device according to claim 3, wherein the reel holding device support portion includes at least a first support bar extending in the parallel direction to support one of the two reel holding devices, and a second support bar extending in the parallel direction to support the other of the two reel holding devices.

5. 2. The carrier tape supply device according to claim 1, wherein a width dimension of the reel holding device is larger than a width dimension of the component supply unit and is equal to or smaller than a width dimension of a space occupied by two adjacent component supply units.

6. A component mounting device comprising: a carrier tape supplying device according to any one of claims 1 to 5; a work head that removes components from the carrier tape and mounts them on a substrate; and a component supplying unit that supplies components to the work head while feeding the carrier tape supplied from the carrier tape supplying device.

7. 7. The component mounting device according to claim 6, wherein the base body is detachable from a component supplying device having a plurality of the component supplying units mounted thereon.

Images