JP2004228604A - Feeder and circuit component mounting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a feeder capable of mounting a reel and a reel holder easily on its table in spite of being equipped with a reel holder for holding a large-size reel. <P>SOLUTION: In this feeder comprising: a feeder main body 254 which includes a feeding mechanism 252 for positioning circuit components one by one to its component-supply portions by moving them back and forth and a reel holder 310 which holds a large-size reel 308 on which a tape attached with circuit components are wound in such a position that the whole reel 308 is arranged on the lower side of the feeder main body 254 are connected by a connecting device 312. The reel holder 310 holds the reel 308 under the condition that the whole reel overlaps with the feeder main body 254 in the widthwise direction, and further more than half of the whole reel 308 overlaps with the feeder main body 254 in the a back and forth direction. In addition, the connecting device 312 desirably permits relative displacement of the reel holder 310 with respect to the feeder main body 254 in the widthwise direction. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention relates to a feeder mounted on a circuit component supply device to supply circuit components, and a circuit component mounting system including the feeder.

  Among the feeders for supplying circuit components, there are a feeder body having a feed mechanism for feeding circuit components one by one to a component supply unit, and a reel holding unit for holding a reel around which the taped circuit components are wound. There is something. Conventionally, in this type of feeder, a component supply unit is provided at a front end, which is one end of the feeder body in the circuit component feeding direction, and a reel holding unit is provided at a rear end opposite thereto. The feeder body and the reel holder are arranged in series in the circuit component feed direction, and the reel holder and the feeder body are located on the same plane, and both in the circuit component feed direction and in the width direction of the feeder body. In the perpendicular direction, at least a part of the reel holding portion is configured to overlap the feeder body.

For example, a plurality of feeders of this type are mounted on a circular (full circle) table, and the component supply units of the plurality of feeders are sequentially positioned at component supply positions by rotation of the circular table to supply circuit components. This kind of rotary type circuit component supply device is capable of rotating about (A) the plurality of feeders and (B) one axis extending in the up-down direction, and the component supply units of the feeders are capable of rotating the plurality of feeders. (C) a table for rotating the circular table and positioning each of the component supply units of a plurality of feeders at a predetermined component supply position; And a driving device.
The feeder may also be mounted on a linear circuit component feeder. In the linear circuit component supply device, a table that holds a plurality of feeders in a state where component supply units are arranged in a straight line is linearly moved, and positions each component supply unit of the feeder at a component supply position to supply a circuit component. Things.

  The rotary circuit component supply device can make the circuit component supply device more compact than the linear circuit component supply device. In the linear circuit component supply device, it is necessary to secure a space for movement in addition to the installation space of the table itself, and at least twice as much space as the installation space of the table is required. This is because in the case of a table, it is sufficient to secure a space for one table. In addition, when rotating a circular table, only a moment about the rotation center line is generally generated, so that the vibration of the device itself is smaller than when the table is moved linearly, and the vibration of the floor surface on which the supply device is installed is reduced. However, it is possible to prevent the operator from feeling uncomfortable or to prevent trouble caused by vibration in another device provided on the same floor surface, for example, a decrease in positioning accuracy of the moving member.

  However, the conventional circuit component supply apparatus still has points to be improved in order to further improve the supply efficiency. When the taped circuit components of the feeder are used up, it is necessary to supply the circuit components by replacing the reel or the feeder, and the operation is stopped at the time of the replacement. For this reason, in recent years, the number of replacements (the number of stops) has been reduced by increasing the length of the taped circuit component, and the supply efficiency has been improved. Becomes large, and mounting on a table becomes difficult.

  SUMMARY OF THE INVENTION In view of the above circumstances, the present invention has been made to provide a feeder having a large-sized reel holding portion, which can be easily mounted on a table.

In order to solve the above-described problems, the present invention provides a feeder that accommodates one type of circuit component and supplies one by one from each component supply unit. (B) a feeder body provided with a feed mechanism for positioning one by one in the component supply unit, and (b) a reel provided in a posture hanging down from the feeder body and wound with the tape-formed circuit component, and the entire reel is fed to the feeder. And a reel holding portion for holding the main body in a state below the main body.
Further, the circuit component mounting system includes (i) a circuit component supply device having a plurality of the feeders, and (ii) a circuit board to which circuit components supplied from each of the plurality of feeders of the circuit component supply device are to be mounted. A substrate supporting device that supports the material, and (iii) a circuit component mounting device that receives a circuit component from each of the plurality of feeders and mounts the circuit component on a circuit substrate supported by the supporting device, and The reel holding portion holds the reel at a position below the substrate supporting device.

In the feeder according to the present invention, the reel holding portion is provided in a posture hanging down from the feeder main body, and the entire reel is held in a state of being located below the feeder main body. Compared with the case where the holding part is provided in series, the dimension of the entire feeder in the front-rear direction, which is the circuit component feeding direction, can be reduced, and the circuit component supply device can be made compact.
Further, in the circuit component mounting system according to the present invention, the base member supporting device is provided at a height suitable for mounting the circuit component in relation to the component mounting device, but the lower portion is empty, and the reel holding unit is provided. It can be used effectively as a storage space for Thus, a part of the component supply device and the substrate support device can be vertically overlapped in the direction in which they are arranged, and the system can be made compact.

Aspects of the invention

  In the following, the inventions that are claimed to be capable of being claimed in the present application (hereinafter, may be referred to as “claimable inventions.” The claimed inventions are at least the “present invention” or the “present invention” described in the claims. (Including the invention of the present application, but may also include a subordinate invention of the present invention, a superordinate concept of the present invention, or an invention of another concept). As in the case of the claims, each aspect is divided into sections, each section is numbered, and if necessary, the other sections are cited in a form in which the numbers are cited. This is for the purpose of facilitating the understanding of the claimable invention, and is not intended to limit the combination of the components constituting the claimable invention to those described in the following items. In other words, the claimable invention should be construed in consideration of the description attached to each item, the description of the examples, and the like, and as long as the interpretation is followed, further embodiments are added to the embodiments of each item. In addition, a mode in which constituent elements are deleted from the modes of the respective sections can also be an embodiment of the claimable invention.

  In the following items, items (1), (2) and (3) correspond to claims 1, 2 and 3, respectively, and item (5) corresponds to item 4 and items (7) and (7) (8) and (9) are combined with claim 5, (11) and (12) are combined with claims 6 and 7, and (13) and (15) are combined. This corresponds to claim 8, and the combination of (14) and (16) corresponds to claim 9.

(1) A feeder that accommodates one type of circuit component and supplies one by one from each component supply unit.
A feeder body unit having a feed mechanism for feeding the circuit components in the front-rear direction and positioning the circuit components one by one in the component supply unit;
A reel holding portion provided in a posture hanging down from the feeder main body and holding a reel around which the tape-formed circuit component is wound, in a state where the entire reel is positioned below the feeder main body. feeder.
(2) The feeder according to the above mode (1), further comprising a connecting unit that connects the reel holding unit to the feeder body.
If the reel holding unit is connected to the feeder main body by the connecting means, a state in which the reel holding unit is suspended from the feeder main body can be easily realized.
(3) The connecting means connects the reel holding portion to the feeder body such that at least the center of gravity of the reel holding portion and the reel held by the reel holding portion is relatively movable in the width direction of the feeder body. The feeder according to the above mode (2).
In the feeder of this aspect, when the feeder main body is moved in the width direction (lateral direction orthogonal to the front-rear direction), the entirety is provided below the feeder main body, and at least the center of gravity of the feeder is located relative to the feeder main body. The reel holder and the reel, which are relatively movable in the moving direction, need not move integrally with the feeder body. However, since they are connected by the connecting means, they are not necessarily moved, but are allowed to be delayed with respect to the feeder main body due to their inertia moment. Therefore, the acceleration and deceleration at the time of movement of the reel holding unit and the reel can be smaller than when the reel holding unit is provided integrally with the feeder body. The feeder main body is moved laterally at a large acceleration and deceleration in order to quickly position the component supply portion at the component supply position. Therefore, the reel holding portion is provided integrally with the feeder main portion. If this is the case, the acceleration and deceleration of the reel holding unit also increase, and the vibration of the entire supply device increases. On the other hand, in the feeder according to the present embodiment, the vibration of the entire supply device can be small because the acceleration and the deceleration of the reel and the reel holding unit are small. Therefore, if the vibration at the time of positioning the feeder is the same as when the reel holding unit moves integrally with the feeder main body, the acceleration and deceleration of the feeder main body are increased to shorten the positioning time and to improve the supply efficiency. Can be improved. Alternatively, if the supply efficiency is the same as the conventional one, the acceleration and deceleration of the feeder main body can be kept at the conventional level to reduce the vibration, improve the supply accuracy, and reduce the capacity of the device for moving the feeder. it can. This effect increases as the length of the taped circuit component increases and the mass of the reel around which it is wound increases.
The connecting means includes a connecting member and two hinge means as will be described later, and is not limited to means for moving the entire component holding portion in parallel with respect to the feeder main body portion. May be elastically deformable to allow the component holder itself and the center of gravity of the circuit component to move relative to the feeder body. The center of gravity of the component holder and the circuit component can be moved relative to the feeder body without using a connecting means separate from the component holder.
(4) The connecting means connects the reel holding section to the feeder main body, and connects the entire reel holding section to the feeder main body so as to be movable in parallel in the width direction of the feeder main body. (2) Or the feeder according to the item (3).
In the feeder of this aspect, since the reel holding part is relatively movable in parallel to the width direction of the feeder main body with respect to the feeder main body, the reel holding part is moved relative to the feeder main body as described later. The angle of inclination of the reel holder when the reel holder is delayed with respect to the feeder body can be reduced as compared with the case where the reel holder is relatively rotatable about one axis, or the reel holder is not tilted at all. can do.
(5) The connecting means includes:
A connecting member extending vertically,
Both ends of the connecting member are connected to the feeder main body and the reel holding portion so as to be rotatable around each of two rotating axes parallel to the front-rear direction and vertically separated from each other. The feeder according to item (4), comprising: two hinge means for performing the following operations.
The connecting member rotates on one rotation axis with respect to the feeder main body, rotates on the other rotation axis with respect to the reel holding section, and the reel holding section moves in parallel with the feeder main body. Tolerate.
The connecting means includes a flexible elastic member (e.g., a leaf spring positioned on a plane parallel and vertical in the front-rear direction) extending in the up-down direction, and the elastic member deforms elastically to hold the feeder body and the reel. Although it is possible to allow relative movement with the part, according to the present embodiment, the problem of fatigue failure of the elastic member can be avoided. Also, as compared with the following aspect, there is an advantage that when the reel holder is delayed with respect to the feeder main body, there is no relative movement between the adjacent reel holders in the direction parallel to the side surfaces of the reel holders. is there.
(6) The supply of the rotary circuit component according to (3), wherein the connection unit connects the reel holding unit to the feeder body so as to be relatively rotatable around a rotation axis extending in the front-rear direction. apparatus.
In the feeder of this aspect, when the feeder main body is moved in the width direction, the reel holding unit is relatively rotated with respect to the feeder main body and is delayed, so that the vibration of the supply device is suppressed. If the reel holding unit is rotatably connected to the feeder main body, only one rotation axis is required, and the connecting means can be easily configured.
(7) The feeder main body has a longitudinal shape that extends long in the front-rear direction, and the reel holding portion hangs from an intermediate portion of the longitudinal shape of the feeder main body in the longitudinal direction. A feeder according to any one of the above 6).
According to this aspect, the amount of protrusion of the reel holding portion from the feeder main body in the front-rear direction of the feeder main body can be reduced, the feeder can be made compact, and the degree of freedom in designing peripheral members can be improved. it can.
(8) The feeder according to item (7), wherein the feeder main body has an attached portion attached to an attachment portion on one side of an intermediate portion on which the reel holding portion hangs, but not on an opposite side. .
(9) The feeder according to item (8), wherein the component supply unit is provided in a portion of the feeder body opposite to the side having the attached portion with respect to the intermediate portion.
(10) The connecting means according to any one of (1) to (9), wherein the connecting means includes relative rotation permitting means for permitting relative rotation of the reel holding portion with respect to the feeder main body around an axis extending vertically. Feeder.
The feeder according to this aspect is suitable for being used by being mounted on a rotary table or a fan-shaped table that rotates around one axis. When the rotary table or the sector table rotates and the reel holder moves relative to the feeder main body, the position around the rotation axis of the reel holder and the feeder main body is equal to or less than the rotation angle of the rotary table or the fan table. Shift (rotational position shift) occurs. This displacement is permitted by the relative rotation permitting means, and damage to the connecting means is avoided.
In the case where the connecting means of the feeder includes the connecting member and the two hinge means as described above, similarly, the connecting member is a member which can be elastically twisted about the longitudinal (vertical) axis. Thereby, relative rotation permitting means of the connecting means can be provided.
(11) The feeder according to any one of (1) to (10), wherein the reel holding unit holds the reel in a state in which the entire reel overlaps the feeder body in the width direction.
(12) The reel holding unit according to any one of (1) to (11), wherein the reel holding unit holds the reel in a state in which at least a half of the reel overlaps the feeder body in the front-rear direction. Feeder.
(13) A circuit component supply device including a plurality of feeders according to any one of (1) to (12),
A substrate supporting device that supports a circuit substrate on which circuit components supplied from each of the plurality of feeders of the circuit component supply device are to be mounted,
A circuit component mounting device that receives a circuit component from each of the plurality of feeders and mounts the circuit component on a circuit substrate supported by the substrate supporting device.
This aspect is particularly effective when the circuit component mounting apparatus is of the type described in the next section, but one or a plurality of mounting heads are located at any position in a horizontal plane in one direction or two directions orthogonal to each other. The present invention can also be applied to a circuit component mounting device of a type held by a movable member that can move to a position. Even in the latter type, for example, in order to improve the mounting efficiency, it may be desirable that the mounting head can receive the circuit component at a fixed position. In particular, in a circuit component mounting device in which the component holding head turning device described in the following paragraph is held by a movable member movable in one direction in a horizontal plane or in two directions orthogonal to each other, the circuit component is received at a fixed position. It is desirable to obtain.
(14) The circuit component mounting device is capable of pivoting around a pivot axis extending in the vertical direction, a plurality of component holding heads, and pivoting the plurality of component retaining heads around the pivot axis and a predetermined component. A component holding head rotating device for sequentially stopping at the mounting position, and wherein the substrate supporting device supports the circuit substrate, the circuit substrate supporting member, and the circuit substrate supporting member is perpendicular to the pivot axis. (13) The circuit component mounting system according to (13), further including a device for moving a circuit-substrate support member that moves to an arbitrary position within a simple plane.
As described in the embodiment of the invention, the component holding head turning device includes a plurality of rotating bodies that respectively hold the component holding heads and are rotated around a common rotation axis, and the plurality of rotating bodies, A rotating motion imparting device that includes one or more stops during the rotating axis and one or more stops between the rotating axes, and imparts a rotating motion having a certain time difference from each other, or It may include an intermittent rotator provided around the part so as to be intermittently rotatable and a plurality of component holding heads provided at an angle equal to the intermittent rotation angle, and a rotation drive device for intermittently rotating the intermittent rotator. The rotary drive device may rotate the intermittent rotating body in a fixed direction at a fixed angle, or may rotate the intermittent rotating body in a desired direction at a desired angle. When the component holding heads are held by a rotating body that can be rotated about one axis, the holding intervals of the plurality of component holding heads may be different from each other.
(15) The circuit component mounting system according to (13) or (14), wherein the reel holding unit holds the reel at a position below the substrate supporting device.
(16) The feeder main body portion is provided at a position higher than the substrate support device, and the circuit base material supported by the substrate support device enters between the feeder main body portion and the reel holding portion when a circuit component is mounted. The circuit component mounting system according to the above mode (15), which is capable of being operated.
In a mode in which the feeder main body is provided at a position higher than the substrate supporting device and the circuit base material can be inserted between the feeder main body and the reel holder when the circuit components are mounted, the system is particularly compact. can do.

Hereinafter, a feeder, which is one embodiment of the device invention, and a circuit component mounting system including a plurality of the feeders will be described with reference to the drawings. In the present circuit component mounting system, a feeder is used by being mounted on a rotary circuit component supply device.
As shown in FIGS. 1 and 2, the circuit component mounting system according to the present embodiment includes a rotary circuit component supply device 12, a circuit component mounting device 14, and a board transfer device 16 provided on a base 10.

  The substrate transfer device 16 includes a substrate positioning and supporting device 22 for positioning and supporting a printed circuit board 20 which is a kind of circuit base material, a loading device 24 for loading the printed circuit board 20 into the substrate positioning and supporting device 22, and a substrate positioning and supporting device. And an unloading device 26 that unloads from the circuit component 22, and is provided substantially below the circuit component mounting device 14.

  Each of the carry-in device 24 and the carry-out device 26 is driven by a drive device that uses a belt drive motor 28 (see FIG. 12) as a drive source for a pair of conveyor belts (each endless and annular) (not shown), which are transfer members. Thereby, the printed circuit board 20 placed on the conveyor belt is transported. The substrate transport direction is the horizontal direction in FIG. 2, and this direction is referred to as the X-axis direction.

  The substrate positioning and supporting device 22 includes an X table 36 provided on the base 10 so as to be movable in a direction parallel to the substrate transfer direction, and a Y axis provided on the X table 36 and perpendicular to the X axis direction in a horizontal plane. It has a Y table 38 movably provided in the direction, and a substrate support table 40 movably provided on the Y table 38.

  The substrate support 40 is provided with a substrate loading / unloading device and a substrate holding device. The substrate loading / unloading device is configured such that a pair of conveyor belts (each endless and annular) serving as transport members are driven by a belt driving device having a belt driving motor 44 (see FIG. 12) as a driving source. 20 is conveyed in the X-axis direction.

  As shown by a two-dot chain line in FIG. 2, the substrate support table 40 is loaded with a substrate transfer surface (a surface defined by an upper surface of an upper running portion of an annular conveyor belt of the substrate loading / unloading device) by the lifting device 46. The rising end position corresponding to each substrate transfer surface of the device 24 and the carrying-out device 26 (the surface defined by the upper surface of the upper running portion of each of the annular conveyor belts of the carrying-in device 24 and the carrying-out device 26) and a solid line in FIG. As shown, the printed circuit board 20 is raised and lowered between a lower end position located below the circuit component mounting device 14.

  The transfer of the printed circuit board 20 between the carry-in device 24 and the carry-out device 26 and the substrate positioning / supporting device 22 is performed in a state where the substrate support 40 is located at the rising end position, and the print carried into the substrate support 40 is carried out. The substrate 20 is held by a substrate holding device. When the circuit components are mounted on the printed circuit board 20, the board support 40 is lowered to the lower end position.

  A nut (not shown) is fixed to each of the X table 36 and the Y table 38 and is screwed to a screw shaft 52 (only a screw shaft for moving the Y table 38 is shown in FIG. 1). Each of the screw shafts is rotated by table driving servomotors 54 and 56 (see FIG. 12), so that the X table 36 and the Y table 38 are respectively guided by linear guide members (not shown) so that the X axis is rotated. The substrate support 40 is moved to an arbitrary position in a horizontal plane. A part of the X table 36 is located below the circuit component mounting device 14, and the substrate support 40 moves below the circuit component mounting device 14 as shown by a two-dot chain line in FIG. 1. A part of the moving range of the substrate support 40 and the circuit component mounting device 14 are vertically overlapped. The substrate support 40 is located between the loading device 24 and the unloading device 26 in the X-axis direction, and the position coincident with the loading device 24 and the unloading device 26 in the Y-axis direction is defined as an original in the horizontal plane of the substrate support 40. Called position.

The circuit component mounting device 14 will be described.
Although the circuit component mounting device 14 has not been disclosed yet, it is configured similarly to the circuit component mounting device described in the specification of Japanese Patent Application No. 8-338151 of the present applicant, and will be briefly described here. I do.
The circuit component mounting device 14 includes fifteen rotating plates 60 that can individually rotate around a common vertical axis, a component holding head 64 that is held by each of the rotating plates 60 and that can hold a circuit component 150, Each of the fifteen rotating plates 60 makes one rotation around the vertical axis, includes three stops during the one rotation, and gives a rotating motion having a certain time difference to each other. Having.

  A frame 68 provided above the base 10 and a support plate 69 provided below the frame 68 and fixed to the base 10 constitute a main body of the circuit component mounting device 14, and the frame 68 and the support plate 69 As shown in FIG. 3, the support shaft 70 is fixed vertically, and bearing groups 72 are respectively attached to two places separated in the axial direction. Each bearing group 72 has fifteen bearings 74 whose positions in the axial direction are different from each other. As shown in FIG. And is rotatably supported. The distance between these two bearings 74 is equal for each rotation plate 60, but the mounting position of each of the two supported arms 76 with respect to the rotation plate 60 in the direction parallel to the rotation axis is Each of the moving plates 60 is different, and the 15 turning plates 60 are supported by the support shaft 70 so as to be rotatable at the same position (height) in a direction parallel to the turning axis. I will not.

  A cam follower 84 is attached to each rotating plate 60. The mounting positions of the cam followers 84 in the direction parallel to the rotation axis with respect to the rotation plate 60 are the same in the 15 rotation plates 60, and the 15 cam followers 84 align the rotation axis of the rotation plate 60. Move on the same circumference as the center. Each cam follower 84 has a large diameter roller 86 and a small diameter roller 88 independently and rotatably mounted around a common axis orthogonal to the rotation axis of the rotation plate 60, and is rotatably mounted on the frame 68. Each of the four drum-shaped cams 90a, 90b, 90c, and 90d (see FIG. 2) is rotatable to each of the cam grooves 92b and 92d (the cam grooves are omitted for the drum-shaped cams 90a and 90c). Mated.

  The hourglass-shaped cams 90a, 90b, 90c, and 90d are arranged such that an arc centered on the axis of the support shaft 70 is positioned on the opposite side to the axis with respect to the arc, and the axis intersects the axis at right angles. When rotated around, it forms a locus drawn by the arc. These hourglass cams 90a, 90b, 90c, 90d are arranged axially symmetrically with the axis of the support shaft 70 as the axis of symmetry, and include a plane including all axes of the four hourglass cams 90a, 90b, 90c, 90d ( A set of lines of intersection between the (horizontal plane) and the outer peripheral surfaces of the four hourglass-shaped cams 90a, 90b, 90c, 90d describes a substantially continuous circle.

  Each of the four cam grooves is a two-stage cam groove having a wide portion 94 and a bottom surface of the wide portion 94 and a narrow portion 96 having a small width. The small-diameter rollers 88 are rotatably fitted to the narrow portions 96, respectively.

  As shown in FIG. 2, two bevel gears are fixed to the rotating shafts 98a and 98d fixed to the hourglass cams 90a and 90d, respectively, and the rotating shaft 98b (hourglass cam) fixed to the hourglass cams 90b and 90c is provided. A bevel gear is fixed to each end of the rotating shaft 90c), and among these bevel gears, bevel gears adjacent to each other are meshed with each other. Therefore, by rotating the rotating shaft 90a by the driving servomotor 100 (see FIG. 2), the four hourglass-shaped cams 90a, 90b, 90c, and 90d are simultaneously rotated in synchronization, and the rotating plate 60 is rotated. Is turned or stopped.

  The rotating plate 60 is stopped at the component suction position, the imaging position, and the component mounting position. The component suction position is set on the rotary circuit component supply device 12 side, and a drum-shaped cam 90d is provided at a position corresponding to the vicinity of the component suction position of the frame 68. The component mounting position is set on the substrate transfer device 16 side, and a drum-shaped cam 90b is provided at a position corresponding to the vicinity of the component mounting position of the frame 68. The imaging position is provided halfway from the component suction position to the component mounting position, and a drum-shaped cam 90a is provided at a position corresponding to the vicinity of the imaging position of the frame 68. An imaging device 102 (see FIG. 12) including a lighting device and a CCD camera is provided at a position corresponding to the vicinity of the imaging position of the base 10.

  Each cam groove of the hourglass-shaped cams 90a, 90b, and 90d includes an inclined portion having a lead angle with respect to a plane perpendicular to the axis of the hourglass-shaped cams 90a, 90b, and 90d, and a right-angled portion having no lead angle. The rotating plate 60 is stopped at the imaging position, the component mounting position, and the component suction position, respectively. The inclined portion accelerates the rotating plate 60 from a state of rotating at a constant angular velocity before stopping to gain a moving distance, decelerates and stops the rotating plate 60, and rotates the rotating plate 60 after resuming the rotation to move the moving distance. And decelerate to shift to rotation at a constant angular velocity. The cam groove of the hourglass cam 90c has only a linear inclined portion, and the rotating plate 60 is rotated at a constant angular velocity without stopping.

  Each of the cam grooves of the hourglass-shaped cams 90a, 90b, and 90d has a timing at which the rotary plate 60 stops at the imaging position, the component mounting position, and the component suction position, respectively, at one arrival time pitch, that is, one stop position. The component holding head 64 is formed so as to be shifted by approximately ず つ of the time pitch reached by the component holding head 64. The inclination of each of the inclined portions of the drum-shaped cams 90a, 90b, and 90d is the same in both the curved portion and the straight portion, and the constant rotation speed, acceleration, and deceleration of the rotation plate 60 are equal to those of the drum-shaped cam 90a. , 90b, and 90d, the lengths of the straight portions before and after the stop position are different from each other, and the distance between the component suction position and the imaging position and the distance between the imaging position and the component mounting position are different. And are not equal to each other. The inclination of the cam groove of the hourglass cam 90c is the same as the inclination of the linear portion of the inclined portion of the cam groove such as the hourglass cam 90a, and the rotating plate 60 is rotated by the hourglass cam 90c. It is rotated at a constant speed at the same angular velocity as when it is rotated at a constant speed by 90a, 90b, 90d.

  FIG. 4 is a timing chart showing the relationship between the rotation angles of the 15 rotation plates 60 and the time when the rotation plates 60 rotate. In FIG. 4, T is a time required for the rotating plate 60 to rotate 360 degrees, and since 15 rotating plates 60 are provided, a value T / 15 obtained by dividing the time T by 15 is 1 The passage of time is shown on the horizontal axis as a scale. One scale on the vertical axis is a station interval when 13 stations are assumed in one round. In the present embodiment, the rotating plate 60 stops at three stations out of thirteen stations, but passes through the remaining ten stations. The straight line portion of each line indicating the relationship between the rotation angle and the time is a portion where the rotation plate 60 is rotating at a constant speed, the curved portion that is convex upward is a portion that is decelerating, and the convex portion that is downward is convex. The curved part is the part that is accelerating.

  As shown in the timing chart, the timing at which the rotating plate 60 stops at the component suction position, the imaging position, and the component mounting position is shifted by approximately 1/3 of the arrival time pitch, and the acceleration timing and the deceleration before and after the stop. At the wrong time, the load torque of the driving servomotor 100 is leveled.

  The respective cam grooves of the adjacent drum-shaped cams are connected to each other at a fixed rotational phase, the cam follower 84 moves from one cam groove of the adjacent drum-shaped cam to the other cam groove, and the rotating plate 60 is rotated by 360 degrees. Rotate degrees. The cam follower 84 has a large-diameter roller 86 and a small-diameter roller 88. The large-diameter roller 86 reaches the seam of the cam groove first, and is not caught from both sides by the groove side surface of the wide portion 94. The small-diameter roller 88 is still sandwiched from both sides by the groove side surface of the narrow portion 96, and the large-diameter roller 86 can smoothly move over the cam groove. When the small-diameter roller 88 reaches the joint of the cam groove, the large-diameter roller 86 is already sandwiched from both sides by the groove side surface of the wide portion 94 of the adjacent cam groove, and the small-diameter roller 88 smoothly You can move over the ditch.

  As shown in FIG. 3, the component holding head 64 is held by an elevating member 124 as a moving member that is attached to the rotating plate 60 so as to be able to elevate and lower. Two fixed cam rollers 126 are attached to the elevating member 124 so as to be rotatable about an axis orthogonal to the rotation axis of the rotation plate 60, and a cam groove 130 of a fixed cam 128 fixed to the frame 68. Are rotatably fitted to. The cam groove 130 is formed along a cylindrical surface centered on the rotation axis of the rotation plate 60, and has a portion in which the position in the direction parallel to the rotation axis, that is, the position in the up-down direction gradually changes. The cam groove 130 is arranged such that the component holding head 64 is located at the rising end at the component suction position, is located at the lower end at the component mounting position, and moves horizontally before and after the component suction position, the imaging position, and the component mounting position. When the rotating plate 60 is rotated and the fixed cam roller 126 rolls on a portion where the height of the cam groove 130 changes smoothly in the circumferential direction, the elevating member 124 is raised and lowered, The component holding head 64 is moved up and down. The distance between the outermost surfaces of each of the two fixed cam rollers 126 in the direction parallel to the rotation axis of the rotation plate 60 is the width of the cam groove 130 (the width of the rotation plate 60). (Dimension in the direction parallel to the rotation axis), and the two fixed cam rollers 126 are brought into contact with the upper groove side surface and the lower groove side surface of the cam groove 130 with positive pressure. Therefore, the fixed cam roller 126 can roll quietly without generating vibration.

  The component holding head 64 includes a head holder 140 provided on the elevating member 124 so as to be rotatable around a vertical axis and rotatable about a horizontal axis, and on a circle around the rotation axis of the head holder 140. It has six component suction nozzles 146 (only two are typically shown in FIGS. 1 and 3) provided at angular intervals. When the head holding body 140 is rotated about the horizontal axis by a nozzle selection device having a nozzle rotation / selection servomotor 148 mounted on the elevating member 124 as a driving source, the component suction nozzle 146 is selected. One of the component suction nozzles 146 is positioned at the operating position, that is, the vertical and downward position. Further, by rotating the head holder 140 about a vertical axis by a nozzle rotating device driven by the nozzle rotation / selection servomotor 148 as a driving source, the component suction nozzle 146 positioned at the operating position is rotated around its own axis. And the azimuth error (position error about the axis) of the circuit component 150 (see FIG. 5) is corrected.

  The correction of the azimuth error is performed while the rotating plate 60 is rotated from the imaging position to the component mounting position. During the movement, the component suction nozzle 146 is returned to the position (original position) before the correction of the azimuth error, and the component suction nozzle 146 is selected.

  Although not shown, a component holding head elevating device is provided at a position corresponding to the vicinity of the component suction position and a position corresponding to the vicinity of the component mounting position of the frame 68. Fitting grooves are formed at positions corresponding to the vicinity of the component suction position and the vicinity of the component mounting position of the fixed cam 128, and the elevating member of the component holding head elevating device is fitted to be able to move up and down. A horizontal groove is formed in the elevating member, and when the elevating member is located at the ascending end position and fitted in the fitting groove, it forms a part of the cam groove 130 of the fixed cam 128.

  The lifting drive device for raising and lowering the lifting member uses the driving servomotor 100 as a drive source, and the rotation of the driving servomotor 100 is converted by a motion conversion device including a cam and a cam follower to raise and lower the lifting member. The component holding head lifting / lowering device includes a lifting / lowering stroke changing device, and can change the lifting / lowering stroke of the lifting / lowering member, that is, the lifting / lowering stroke of the component holding head 64, according to the height of the circuit component 150 or the like.

  When the rotating plate 60 is rotated to reach the component suction position, the fixed cam roller 126 enters the groove of the elevating member of the component holding head elevating device provided at a position corresponding to the vicinity of the component adsorbing position. Is raised and lowered, the lifting plate 124 is raised and lowered, and the component holding head 64 is raised and lowered, and the circuit component 150 is taken out from the rotary circuit component supply device 12. When the rotating plate 60 reaches the component mounting position, the fixed cam roller 126 enters the groove of the elevating member of the component holding head elevating device provided near the component mounting position, and holds the component by elevating the elevating member. The head 64 is moved up and down to mount the circuit component 150 on the printed circuit board 20. Switching between supply and cutoff of the negative pressure to the component suction nozzle 146 is performed by a switching device provided on the component holding head 64. The switching device 160 is a device that is mechanically switched, and the switching is performed by lowering the component holding head 64 by switching device driving devices provided at positions near the component suction position and the component mounting position of the device main body, respectively. It is performed along with. A negative pressure is supplied to the switching device 160 by a hose, a rotary valve, and the like (not shown), and power is supplied to the nozzle rotation / selection servomotor 148 by a non-contact power supply device (not shown).

  The rotary circuit component supply device 12 will be described. As shown in FIG. 1, the rotary circuit component supply device 12 includes a plurality of feeders 200, a full-circular circular table 202 as a rotary table holding the feeders 200, a table driving device 204 for rotating the circular table 202, It has. The circular table 202 has a cylindrical supported portion 208, and an annular mounting portion 210 that extends radially outward from the supported portion 208 at one axial end of the supported portion 208. Then, in the supported portion 208, it is rotatable around a vertical axis via a bearing 214 above a support shaft 212 fixed to the base 10 in a vertical direction, and is mounted in a posture in which the mounting portion 210 is located on the upper side. Have been.

  A driven gear 218 is fixed to a lower end of the supported portion 208, that is, an end opposite to the side on which the mounting portion 210 is provided. The rotation of the table rotation servomotor 220 is transmitted to the circular table 202 at a reduced speed by gears 222, 224, 226, 228, 230 and a driven gear 218. When the table rotation servomotor 220 is controlled by a control device 520 (see FIG. 12) described later, the circular table 202 is rotated to an arbitrary position at an arbitrary angular speed, and a plurality of feeders held by the circular table 202 are rotated. Each of the 200 component supply units is positioned at a predetermined component supply position. The component supply position is a position where the component supply unit is located immediately below the component holding head 64 stopped at the component suction position. The driven gear 218, the table rotation servomotor 220, the gears 222 to 230, the control device 520, and the like constitute the table driving device 204.

The feeder 200 will be described.
Each of the plurality of feeders 200 accommodates one type of circuit component 150, and sequentially supplies one of them from each component supply unit. The circuit component 150 supplied by the feeder 200 is a taped circuit component 242 as shown in FIG. As shown in FIG. 9, the taped circuit component 242 has a large number of component receiving portions projecting at a constant pitch between a pair of elongated supported portions, and a concave portion provided in each component receiving portion. Are embossed type taped circuit components in which circuit components are accommodated one by one, and the component accommodating recesses are covered with a cover tape 246.

  The main body member 250 of the feeder 200 generally has an elongated plate shape, and forms a feeder main body part 254 together with a feeding device 252 provided on the main body member 250 and serving as a feeding mechanism for feeding the taped circuit components 242 to the component supply unit one by one. ing. The feeding device 252 sends the taped circuit component 242 forward together with the cover 256, but does not feed the taped circuit component 242 when the cover 256 is retracted, and prepares for feeding (the ratchet pawl 258 (see FIG. 5) is carried out over the teeth of the ratchet wheel 260). A winding device 264 for winding the cover tape 246 is attached to the main body member 250 by a bracket 266. When the taped circuit component 242 is fed, the take-up reel 268 is stationary and does not take up the cover tape 246, and when the feed device 252 prepares for feeding, the take-up reel 268 is configured to rotate and wind up the cover tape 246.

  The feeding device 252 and the winding device 264 are driven by a driving device 272 that uses the driving servomotor 100 as a driving source. The driving device 272 has a driving member 274 that can be moved up and down at the component supply position of the rotary circuit component supply device 12, and the rotation of the driving servomotor 100 is constituted by a cam, a cam follower, and the like (not shown). The drive member 274 is converted into a vertical motion by the motion conversion device. The drive bar 276 attached to the bracket 266 is raised and lowered by the vertical movement of the drive member 274, and the feed device 252 and the winding device 264 are operated. It is.

  When the drive member 274 is lowered and the engagement roller 278 (see FIG. 5) engages with the drive bar 276 and pushes down the drive bar 276, the drive lever 279 rotates and the cover drive bar 281 moves forward. Then, the cover 256 is advanced, and the feed bar 283 is advanced, so that the rotating plate 285 is rotated. Accordingly, the ratchet pawl 258 rotatably attached to the rotating plate 285 moves while engaging with the teeth of the ratchet wheel 260, and the sprocket 358 provided on the ratchet wheel 260 and the ratchet wheel 260 so as to be relatively non-rotatable. The taped circuit component 242 that has been rotated and engaged with the teeth of the sprocket 358 in the feed hole of the carrier tape 244 is fed by one pitch, and the top circuit component of the circuit component 150 from which the cover tape 246 has been peeled off. 150 is sent to the parts removal position. The component supply section is located near the component removal position of the feeder 200, and the component supply section is provided on one side in the longitudinal direction of the feeder body 254. When the leading circuit component 150 is sent to the component take-out position, the take-up reel 268 is stationary in the take-up device 264, and the movable guide roller 280 pivots downward and forward, and the movable guide roller 280 rotates. The distance between the take-up reel 268 and the take-up reel 268 is increased, and the cover tape 246 that has been taken in at the time of take-up of the cover tape 246 is taken out, thereby allowing the taped circuit component 242 to be fed by one pitch together with the cover 256.

  Conversely, when the drive member 274 is raised, the drive lever 279 is rotated by the urging force of the extension coil spring 282, the cover drive bar 281 and the feed bar 283 are retracted, and the drive bar 276 is driven by the drive member 274. Is raised to follow. As a result, the cover 256 is retracted and preparation for feeding is performed in the feeding device 252. In the winding device 264, the winding reel 268 is rotated to separate the cover tape 246 by one pitch from the carrier tape 244. As the take-up takes place, the movable guide roller 280 attached to the drive lever 279 pivots upward and backward, and the distance between the movable guide roller 280 and the take-up reel 268 is reduced, so that a cover of a fixed length is formed. The tape 246 is loaded.

  The feed direction of the taped circuit component 242 (hereinafter, referred to as the circuit component feed direction) is parallel to the longitudinal direction of the main body member 250, and the feed direction of the circuit component and the longitudinal direction of the main body member 250 are the front-back direction of the feeder 200. But also. Further, the thickness direction of the feeder 280 is referred to as a left-right direction or a width direction. Since the feeding of the taped circuit component 242 and the winding of the cover tape 246 are not directly related to the present invention, detailed description will be omitted.

  A tape processing device 284 is provided at a position corresponding to the vicinity of the component suction position of the support plate 69, as shown in FIG. The tape processing device 284 includes a cutter for cutting the carrier tape 244 from which the circuit component 150 has been taken out, and a tape suction device for suctioning and collecting the cut tape pieces by negative pressure. The carrier tape 244 is cut off each time one circuit component 150 is supplied and the taped circuit component 242 is fed by one pitch.

  As shown in FIG. 5, a positioning projection 290 is provided in a lower part of an upstream portion of the main body member 250 in the circuit component feeding direction so as to project in parallel with the circuit component feeding direction. As shown in FIG. 6, the positioning protrusion 290 is a tapered portion having a width narrower toward the upstream side in the circuit component feeding direction, and when the feeder 200 is mounted on the circular table 202, the positioning protrusion 290 of the adjacent feeder 200 Interference with the system is avoided. An inclined contact surface 292 that is inclined downward toward the upstream side is provided on the upper surface of the upstream end of the positioning protrusion 290 in the circuit component feed direction. A positioning rib 294 is provided on the lower surface of the positioning protrusion 290. The width of the positioning rib 294 is smaller than the minimum width of the positioning protrusion 290 and is constant. Further, the width of the main body member 250 is constant, and is smaller than the minimum width of the positioning projection 290, so that interference with the main body member 250 of the adjacent feeder 200 is avoided.

  As shown in FIG. 5, another positioning projection 296 is provided at an end of the positioning projection 290 on the downstream side in the circuit component feeding direction. The positioning protrusion 296 extends downward from the positioning protrusion 290, that is, at a right angle to the opposite side of the main body member 250. An intermediate cylindrical surface in the projecting direction of the positioning projection 296 is formed with a partially cylindrical engaging surface 298 that opens to the downstream side in the circuit component feed direction and has a center line parallel to the width direction of the feeder 200. . In addition, a guide surface 300 that is inclined toward the upstream side in the circuit component feed direction is formed at the protruding end of the positioning protrusion 296 toward the protruding end.

  The taped circuit component 242 is wound around a reel 308 as shown in FIG. 7, and is a lower surface of an intermediate portion in the longitudinal direction of the main body member 250 and between the positioning projection 290 and the component supply portion. , A reel holder 310 is attached by a coupling device 312 to constitute a reel holder. The reel holder 310 includes a container-shaped reel container 314 whose width is slightly larger than the reel 308. A pair of side walls 316 and 318 of the reel container 314 has a shape in which a part of a circle larger than the reel 308 is deleted, and one side wall 316 is deleted to near the center.

  The bottom wall of the reel container 314 connects the side wall 316 and a part of the side wall 318, and the reel container 314 is opened upstream in the circuit component feeding direction of the feeder 200. The reel 308 is inserted between the pair of side walls 316 and 318, and both ends are rotatably supported by a removable shaft 320 supported by the side walls 316 and 318 about an axis parallel to the width direction of the feeder 200. I have. The reel container 314 and the shaft 320 detachable from the reel container 314 constitute a reel holder 310. Further, plate-shaped engaging pieces 322 serving as engaging members protrude outward in the radial direction at two circumferentially spaced locations on the outer surface of the bottom wall of the reel container 314.

  The connecting device 312 includes two hinge devices 328 and a connecting member 330. As shown in FIG. 8, a support member 332 is fixed to the lower surface of the intermediate portion in the longitudinal direction of the main body member 250. The support member 332 has a plate shape, and is suspended from one end in the width direction of the main body member 250 in a posture in which the plate surface is parallel to the longitudinal direction of the main body member 250 and is perpendicular to the width direction. An intermediate portion in the width direction of the extending end portion of the support member 332, that is, an intermediate portion in a direction parallel to the longitudinal direction of the main body member 250 is further projected downward, and is formed on a surface opposite to the main body member 250 side. The hinge member 334 (see FIG. 7) is fixed by welding, which is a kind of fixing means, in a posture parallel to the longitudinal direction of the main body member 250.

  Also, a part of the side wall 318 of the reel container 314 is extended upward as shown in FIG. 7, and the intermediate portion in the width direction of the extending end of the extending portion 338 further extends upward. A hinge member 334 similar to the hinge member 334 is fixed to the surface opposite to the side wall 316 by welding in parallel with the width direction of the extension portion 338.

  The connecting member 330 is made of a leaf spring, and its both ends in the longitudinal direction are respectively protruded in the longitudinal direction at both ends separated in the width direction, and a hinge member 342 is provided at each protruding end with a type of fixing means. Are fixed parallel to the width direction and concentrically with each other. A hinge pin 344 is fitted over the hinge members 334 and 342 with a hinge member 334 fixed to the support member 332 sandwiched between a pair of hinge members 342 fixed to one longitudinal end of the connection member 330. The hinge pin 344 is fitted over the hinge members 334 and 342 with the hinge member 334 fixed to the extension 338 of the reel container 314 sandwiched between a pair of hinge members 342 fixed to the other end. ing.

  The two ends of the connecting member 330 are separated from each other by the reel holder 310 and the main body member 250 in a direction parallel to the longitudinal direction of the main body member 250 and perpendicular to the longitudinal direction and the width direction of the main body member 250. When the feeder 200 is fixed to the circular table 202, the connecting member 330 extends in a direction parallel to the rotation axis of the feeder 200, and Both ends are respectively attached to the reel holder 310 and the main body member 250 around two rotation axes perpendicular to the moving direction of the feeder 200 and separated from each other in a direction parallel to the rotation axis of the feeder 200. It is in a state of being rotatably connected. Further, the reel holder 310 is suspended from the feeder main body 254 to hold the entire reel 308 in a state positioned below the feeder main body 254, and the whole of the reel 308 overlaps the feeder main body 254 in the width direction. In the component feed direction, more than half the part is attached to the feeder main body 254 in a state of overlapping with the feeder main body 254.

  A pair of guide members 350 is fixed to a surface of the extension 338 opposite to the side to which the hinge member 334 is fixed, and a surface of the support member 332 opposite to the side to which the hinge member 334 is fixed. , One guide member 352 is fixed. The guide members 350 and 352 have a plate shape and are curved, and the taped circuit component 242 pulled out from the reel 308 passes between the pair of guide members 350 and is guided by the guide member 352 to be a main body member. It is led to 250.

  As shown in FIGS. 5 and 9, the main body member 250 has a guide groove 356 which is opened on the bottom surface and the side surface, and is formed as a guide portion which is curved upward and convexly toward the downstream side in the circuit component feeding direction. Have been. After the taped circuit component 242 is inserted into the guide groove 356, the taped circuit component 242 is placed on the upper surface of the main body member 250, and is engaged with the teeth of the sprocket 358 in the perforations formed in the carrier tape 244. To prevent floating from the main body member 250. The cover drive bar 281 and the feed bar 283 partially close the opening of the guide groove 356 to the side surface of the main body member 250, and the taped circuit component 242 is connected to the groove side surface of the guide groove 356 and the cover drive. The bar 281 and the feed bar 283 prevent movement in the width direction, and the carrier tape 244 is engaged with the sprocket 358. Is parallel to the longitudinal direction of the main body member 250, and the leading circuit component 150 from which the cover tape 246 has been peeled off is accurately positioned at the component removal position. The diameter of the hinge members 334, 342 is small, and the hinge members 334, 342 of one of the two adjacent feeders 200 in a state where the feeder 200 is attached to the circular table 202 as described later. 342 does not interfere with the taped circuit component 242 of the other feeder 200 and hinder its movement.

  As shown in FIG. 6, annular positioning plates 370 and 372 having different radii are fixed concentrically with the circular table 202 on the outer peripheral side of the mounting portion 210 of the circular table 202, and are orthogonal to the rotation axis of the circular table 202. At a distance from each other. A plurality of positioning grooves 374, 376 penetrating in a direction perpendicular to the rotation axis of the circular table 202 are formed at equal angular intervals in these positioning plates 370, 372, respectively. These positioning grooves 374 and 376 have a fixed width that fits into the positioning ribs 294 provided on the main body member 250 of the feeder 200 so as to be immovable in the width direction. Further, a stopper plate 378 is fixed to the rotation axis side of the positioning plate 370 on the side closer to the rotation axis of the circular table 202. The stopper plate 378 has an annular shape, and is provided with an inclined contact surface 380 (see FIG. 5) that contacts the inclined contact surface 292 formed on the main body member 250. The stopper plate 378 is common to the plurality of feeders 200, and the inclined contact surface 380 forms an annular shape.

  An engagement device 384 is provided on the outer peripheral surface of the mounting portion 210 as shown in FIGS. In FIG. 6, two engagement devices 384 and two feeders 200 are typically shown. A mounting member 386 is fixed to a position that is lower than the upper surface of the outer peripheral surface of the mounting portion 210 by a small distance and corresponds to a positioning groove 376 formed in the positioning plate 372. Each mounting member 386 has a recess 388 that opens upward, and an engagement lever 390 is mounted by a pin 392 so as to be rotatable around an axis parallel to a tangent to the outer peripheral surface of the mounting portion 210. . An engagement roller 394 is attached to the upper end of the engagement lever 390 so as to be rotatable around an axis parallel to the rotation axis of the engagement lever 390, and a biasing means provided between the lower end and the attachment member 386. The engagement roller 394 is urged by the compression coil spring 396 as an elastic member, which is one type of the above, in a direction approaching the mounting portion 210.

  As shown in FIG. 7, a bucket 400 is connected to the lower surface of the outer peripheral portion of the mounting portion 210 by four connecting devices 402. The bucket 400 has a ring shape, is formed in a container shape opened upward, and engaging members 404 and 406 are fixed to two positions separated from each other in a direction orthogonal to the rotation axis of the circular table 202 on the inner surface. Each of the engagement members 404 and 406 is formed in an annular shape, is fixed concentrically with the bucket 400, and rotates the feeder 200 corresponding to the position where each reel holder 310 of the plurality of feeders 200 is attached. A plurality of fitting grooves 408, 410 extending in a direction perpendicular to the axis are formed at equal angular intervals to form a comb-like shape. The widths of the fitting grooves 408 and 410 are constant, and have such a width as to be immovably fitted in the width direction with the engaging pieces 322 protruding from the reel container 314. Although not shown, the upper ends of both sides of the pair of groove walls defining the fitting grooves 408 and 410 that are parallel to the radial direction of the circular table 202 are inclined in such a direction that the upper ends are separated from each other. An inclined surface is formed, and serves as a guide when the engaging piece 322 is fitted into the fitting grooves 408, 410.

The four connecting devices 402 are provided at equal angular intervals, and each connecting device 402 has two hinge devices 414 and two connecting members 416, respectively. The configuration of these connecting devices 402 is the same, and one of them will be described as a representative.
As shown in FIGS. 7 and 10, a hinge member 418 having a pair of cylindrical portions 420 is fixed to the lower surface of the outer peripheral portion of the mounting portion 210 of the circular table 202. The hinge member 418 has a longitudinal shape, is fixed in a direction perpendicular to the rotation axis of the circular table 202, and has cylindrical portions 420 concentrically provided at both ends in the longitudinal direction. A generally cylindrical hinge member 422 is fitted between these tubular portions 420, and a hinge pin 424 is fitted over the hinge members 418, 422, so that the hinge member 422 and the hinge member 418 The hinge device 414 is configured so as to be rotatable about an axis orthogonal to the rotation axis.

  As shown in FIGS. 7 and 10, an annular mounting portion 428 is integrally provided on the upper end of the peripheral wall portion of the bucket 400 on the side near the rotation axis of the circular table 202. The mounting portion 428 has a plate shape and is provided on the bucket 400 in a state where the plate surface is horizontal. A hinge member 418 similar to the hinge member 418 is provided on the upper surface of the mounting portion 428 with the center line of the bucket 400. It is fixed in an orthogonal direction. A generally cylindrical hinge member 422 is fitted between a pair of cylindrical portions 420 of the hinge member 418, and the hinge pin 424 is inserted, so that the two hinge members 418, 422 are aligned with the center line of the bucket 400. The hinge device 414 is connected to be rotatable about an axis perpendicular to the axis.

  Both ends in the longitudinal direction of a connecting member 416 made of a leaf spring are fixed to both side surfaces of each hinge member 422 of the two hinge devices 414, respectively. The connecting member 416 extends in a direction parallel to the rotation axis of the circular table 202, and both ends thereof are respectively connected to the circular table 202 and the bucket 400 and to the rotation axis of the circular table 202 while being orthogonal to the moving direction of the feeder 200. It is pivotally connected about each of two pivot axes separated in a parallel direction.

  The circular table 202 is also provided with four regulating member delay / return devices 450 at equal angular intervals. Each regulating member delay / return device 450 includes two commercially available shock absorbers 452, 454, as shown in FIG. As shown in FIG. 7, a plate-shaped engaging portion 456 is provided on each of the portions of the mounting portion 428 provided on the bucket 400 connected to the circular table 202 by the four connecting devices 402, as shown in FIG. The two shock absorbers 452, 454 are provided at right angles to the direction, and are respectively provided coaxially and opposed to both sides of the engaging portion 456 by brackets 458 fixed to the circular table 202.

The configurations of the shock absorbers 452 and 454 are the same, and the shock absorber 452 will be representatively described with reference to FIG.
A cylindrical cylinder tube 466 is fitted and fixed in the casing 464 of the shock absorber 452 leaving a gap in the radial direction. A piston 468 is fitted in the cylinder tube 466 in a substantially liquid-tight and slidable manner, and a first liquid chamber 470 and a second liquid chamber 472 are formed on both sides of the piston 468, respectively. A piston rod 474 provided integrally with the piston 468 is projected outside the casing 464 through the second liquid chamber 472, and the piston 468 is provided with two pistons disposed in the first liquid chamber 470. The piston rod 474 is urged in a direction to protrude from the casing 464 by a compression coil spring 476 (hereinafter, abbreviated as spring 476) as an elastic member, which is a kind of urging means. The ends of the two springs 476 near each other are supported by a spring seat 478.

  The first liquid chamber 470 and the second liquid chamber 472 are connected by an axial passage 480 and a plurality of radial passages 482 formed in the piston 468, and a check valve 486 is provided in the axial passage 480. I have. The check valve 486 has a valve seat 488, a ball 490 serving as a valve, and a biasing spring 492 in a direction in which the ball 490 is seated on the valve seat 488. Allows flow, but blocks reverse flow.

The annular third liquid chamber 496 and the first liquid chamber 470 provided between the casing 464 and the cylinder tube 466 are communicated with each other by a plurality of passages 498 formed on the peripheral wall of the cylinder tube 466. On the outer peripheral surface of the cylinder tube 466, a plurality of radially outward protrusions 500 are provided at intervals in a direction parallel to the axis of the cylinder tube 466, and a passage 498 is formed in each protrusion 500. I have. The clearance between the opening on the outer peripheral surface side of the cylinder tube 466 of the passage 498 and the inner peripheral surface of the casing 464 is extremely small, so that the liquid flowing out of the passage 498 is restricted. Further, the plurality of passages 498 are formed such that the closer to the back of the first liquid chamber 470 (the side closer to the piston 468), the smaller the distance between the adjacent passages 498.
Further, the third liquid chamber 496 and the second liquid chamber 472 are communicated with a sufficient flow area by a plurality of passages 504 provided in the cylinder tube 466. Further, a volume changing member 506 is provided in the third liquid chamber 496. Gas is filled in the volume changing member 506, and the volume of the volume changing member 506 is reduced while compressing the gas.

When a force is applied to the piston rod 474 to push it into the cylinder tube 466, the piston 468 is retracted while compressing the spring 476. This retreat is permitted by the liquid in the first liquid chamber 470 flowing out to the third liquid chamber 496 via the passage 498 with the decrease in the volume of the volume changing member 506, but the liquid flowing out from the passage 498 is restricted. Therefore, a damping force is generated to reduce the retreat speed of the piston 476. Further, as the retreat distance of the piston 468 increases, the number of the passages 498 for communicating the first liquid chamber 470 with the third liquid chamber 496 decreases, and the piston 468 becomes difficult to retreat. Conversely, when the force applied to the piston rod 474 is released, the piston 468 is advanced by the urging force of the spring 476. At this time, the number of passages 498 connecting the first liquid chamber 470 to the third liquid chamber 496 is small, and a small amount of liquid flows into the first liquid chamber 470 from the third liquid chamber 496 through the passage 498. Then, the liquid flows into the first liquid chamber 470 through the passages 504, 482, the second liquid chamber 472, and the check valve 486, and the piston 468 advances promptly.
In the present embodiment, each of the pair of shock absorbers 452 is set in a state where the piston 468 compresses the spring 476 and at least one passage 498 on the forward end side is closed, and the piston rod 474 comes into contact with the engagement portion 456. ing.

  When the feeder 200 is mounted on the circular table 202, the rear portion (upstream side in the circuit component feeding direction) is downward, and the front portion (downstream side in the circuit component feeding direction and the side on which the component supply unit is provided). In the upper state, the rear end of the positioning rib 294 is engaged with the positioning groove 374 provided on the positioning plate 370 of the pair of positioning plates 370 and 372 which is closer to the rotation axis of the circular table 202, The feeder 200 is moved in a direction approaching the rotation axis. After moving until the inclined contact surfaces 292 and 380 contact each other, the front part is lowered onto the positioning plates 370 and 372. As a result, the positioning rib 294 is fitted into the positioning groove 376 provided on the positioning plate 372 on the side remote from the rotation axis.

  Further, the positioning protrusion 296 enters between the engagement roller 394 and the circular table 202, and lowers while rotating the engagement lever 390 in a direction away from the circular table 202 against the urging force of the compression coil spring 396. Then, the protruding end is fitted into the concave portion 388. At this time, the guide roller 300 guides the entry of the positioning protrusion 296, and the engagement roller 394 engages with the engagement surface 298 in a state where the positioning rib 294 is fitted in the positioning grooves 374 and 376. The inclined contact surface 292 is pressed against the inclined contact surface 380 by the force of the engagement lever 390 pressing the feeder main body 254 based on the urging force of the compression coil spring 396, and is positioned in the longitudinal direction, and by the action of the inclined surface. The rear portion of the feeder 200 (the portion on the side where the inclined contact surface 292 of the positioning protrusion 290 is formed and the portion other than the portion where the positioning rib 294 protrudes) is pressed against the holding surface, that is, the upper surface of the positioning plate 370. . At the same time, since the engagement surface 298 is located below the upper surface of the positioning plate 370, the feeder 200 is provided with the contact position of the inclined contact surfaces 292 and 380 as the center, and the contact position and the engagement roller 394. A rotation moment is generated whose arm length is the distance in the up-down direction between the engagement position with the engagement surface 298, and this rotation moment causes the positioning projection 290 to have a side on which the inclined contact surface 292 is formed. Is a part on the opposite side, and a part other than the part where the positioning rib 294 protrudes is pressed against the upper surface of the positioning plate 372 which is a holding surface.

  The feeder 200 is prevented from moving in the width direction by fitting the positioning ribs 294 and the positioning grooves 374 and 376 and fitting the positioning protrusions 296 and the recesses 388. The feeder 200 is fixed to the circular table 202 in a substantially horizontal posture while preventing movement in the width direction and the front-rear direction and floating from the circular table 202. The supply unit is located on one circumference around the rotation axis of the circular table 202.

  When the feeder 200 is attached to the circular table 202 in this manner, the reel holder 310 is put into the bucket 400 and the two engaging pieces 322 are fitted into the fitting grooves 408 and 410 of the engaging members 404 and 406, respectively. The relative movement of the reel holders 310 of the plurality of feeders 200 with respect to the bucket 400 in the width direction is prevented. The positioning protrusion 290, the positioning rib 294, the positioning protrusion 296, the positioning groove 374, 376, the concave portion 388 and the stopper plate 378 constitute a positioning device for positioning the feeder 200 with respect to the circular table 202. The plate 378 and the positioning protrusion 290 constitute a fixing device for fixing the feeder 200 to the circular table 202.

  When the feeder 200 is attached to the circular table 202, as shown in FIG. 1, the downstream portion of the feeder 200 in the circuit component feed direction projects radially outward from the circular table 202, and the reel holder 310 Is suspended from the feeder body 254, and the main part of the reel holder 310 is positioned below the substrate positioning and supporting device 22. The board positioning and supporting device 22 is provided at a position higher than the floor surface in accordance with the height of the component mounting position of the circuit component mounting device 14, and the lower side thereof is empty. Can be set up. As described above, the component suction position is higher than the component mounting position, and the feeder main body 254 of the feeder 200 attached to the circular table 202 is located above the moving area of the printed circuit board 20. Therefore, the printed circuit board 20 (substrate support table 40) can be inserted between the feeder main body 254 and the reel holder 310 at the time of mounting the circuit components, and the system can be made compact by that amount, and the system can be configured. It can be made extremely compact.

  As shown in FIG. 1, the rotary circuit component supply device 12 is covered with a safety cover 510 to ensure safety and soundproofing. An opening / closing door 512 is provided on the safety cover 510. The interlock of the opening / closing door 512 is released, and the operator can manually open and close the opening / closing door 512 even while the circuit components are being mounted.

This circuit component mounting system is controlled by a control device 520 shown in FIG. The control device 520 is mainly composed of a computer 530 having a PU (processing unit) 522, a ROM 524, a RAM 526, and a bus 528 connecting them. An input interface 532 is connected to the bus 528, and the imaging device 102 is connected to the bus 528. An output interface 534 is also connected to the bus 528, and the driving circuit 536, 538, 540, 542, 544, 546, 548, 550 drives the belt driving motor 28, the belt driving motor 44, the lifting / lowering device 46, and the table drive. The servomotors 54 and 56, the driving servomotor 100, the nozzle rotation selection servomotor 148, the table rotation servomotor 220 and the like are connected. The ROM 524 stores various programs necessary for transporting and positioning the feeder 20, supplying and mounting the circuit components 150, and the like.
Each of the table driving servomotors 54 and 56, the driving servomotor 100, the nozzle rotation selection servomotor 148, and the table rotation servomotor 220 is a type of electric motor as a driving source, and is a motor whose rotation angle can be controlled. It is. A step motor may be used instead of the servo motor.

  When the circuit component 150 is mounted on the printed circuit board 20 in the circuit component mounting system configured as described above, the printed circuit board 20 is carried into the board positioning and supporting device 22 by the carry-in device 24. The board supporting table 40 receives and holds the printed circuit board 20 at the rising end position, is lowered, and is moved to an arbitrary position in the horizontal plane by the movement of the X table 36 and the Y table 38, so that a large number of the printed circuit boards 20 are The circuit component is mounted on each of the component mounting locations. Prior to the mounting of the circuit component 150, the reference mark provided on the printed circuit board 20 is imaged, and the position errors in the X-axis direction and the Y-axis direction of each of a large number of component mounting locations are calculated based on the image data. Is done. This position error is corrected by correcting the moving distance of the printed circuit board 20 together with the position error of the circuit component 150 held by the component holding head 64 in the X-axis direction and the Y-axis direction.

  When the circuit component 150 is mounted, the driving servomotor 100 is started, and the four hourglass-shaped cams 90a, 90b, 90c, and 90d are simultaneously rotated in synchronization. As a result, the fifteen rotating plates 60 are rotated and stopped, and the fifteen component holding heads 64 are sequentially moved to the component suction position to take out the circuit component 150 from the feeder 200 positioned at the component supply position. After taking out the circuit component 150, the rotating plate 60 is stopped at the imaging position, the circuit component 150 is imaged, and the position error and the azimuth error of the circuit component 150 in the X-axis direction and the Y-axis direction are calculated. After the imaging, the rotation plate 60 is further rotated, and the component suction nozzle 146 positioned at the operating position in parallel with the rotation is rotated around its own axis to correct the azimuth error. Reaching the mounting position, the component holding head 64 mounts the circuit component 150 on the printed circuit board 20.

  One of the plurality of feeders 200 is positioned at the component supply position and supplies the circuit component 150. When one feeder 200 finishes supplying the circuit components 150, the circular table 202 is rotated, and then the feeder 200 that supplies the circuit components 150 is positioned at the component supply position. In principle, the feeders 200 are mounted on the circular table 202 in the order in which the circuit components 150 are mounted on the printed circuit board 20. That is, the adjacent feeder 200 is rotated at an angle obtained by dividing 360 degrees by the number of all the feeders 200 that can be mounted on the circular table 202, and the adjacent feeder 200 is positioned at the component supply position.

  The operation when the circular table 202 is rotated by one pitch and stopped is described. In a state where the circular table 202 is kept in the stopped state for a long time, the elastic force of the springs 476 of the shock absorbers 452 on both the upstream side and the downstream side is also exerted on the bucket 400 and the plurality of reel holders 310 moving integrally therewith. It stops in a balanced state and is in the reference relative phase with respect to the circular table 202. From this state, it is assumed that the circular table 202 is smoothly accelerated, then smoothly decelerated, and rotated by one pitch. When the circular table 202 is accelerated, the feeder main body 254 fixed to the circular table 202 is accelerated integrally with the circular table 202. However, the bucket 400 and the reel holder 310 are respectively connected to the circular table 202 and the feeder main body. The rotation of the circular table 202 and the rotation of the feeder main body 254 are delayed by the respective moments of inertia because they are connected to the unit 254 by the connecting devices 402 and 312 so as to be relatively rotatable in the rotation direction of the circular table 202.

  In the connecting device 402 for connecting the circular table 202 and the bucket 400, the connecting member 416 rotates with respect to the circular table 202 and the bucket 400, respectively, and the bucket 400 maintains a horizontal posture and moves relative to the circular table 202. Relative rotation (relative movement in the circumferential direction of the circular table 202). With the relative rotation between the bucket 400 and the circular table 202, the connecting portion of the connecting member 416 to the circular table 202 (upper hinge device 414) and the connecting portion to the bucket 400 (lower hinge device 414) are circular. Not only does the table 202 relatively move in the circumferential direction, but also rotates a small angle relative to an axis parallel to the rotation axis of the circular table 202. This relative rotation is allowed by the twisting of the connecting member 416.

  In the connecting device 312 that connects the feeder main body 254 and the reel holder 310, the connecting member 330 rotates with respect to the feeder main body 254 and the reel holder 310, and the reel holder 310 has a vertical posture. The feeder body 254 is relatively moved in a direction parallel to the moving direction of the feeder body 254 (the circumferential direction of the circular table 202). At the same time, the reel holder 310 and the feeder body 254 relatively rotate around an axis parallel to the rotation axis of the circular table 202, and this relative rotation is allowed by the torsion of the connecting member 330. In addition, the portion between the feeder body 254 of the taped circuit component 242 and the reel 308 is bent substantially along the connecting member 330 of the connecting device 312 and does not interfere with the connecting device 312 of the adjacent feeder 200. Each of the reel holders 310 of the plurality of feeders 200 is engaged with the bucket 400, and rotates together with the bucket 400 in the direction opposite to the rotation direction of the circular table 202 with respect to the circular table 202 and the feeder body 254. . Since this rotation is permitted by the rotation of the connecting members 416 and 330 as described above, the bucket 400, the plurality of reel holders 310, the reel 308, and the taped circuit component 242 are similar to the weights of the pendulum. Each moves slightly upward to store potential energy. This potential energy generates an urging force (referred to as a reference phase restoring force) for returning the bucket 400 and the reel holder 310 to a reference phase relative to the circular table 202.

  When the circular table 202 is accelerated, of the two shock absorbers 452, the casing 464 of the shock absorber 452 on the upstream side in the rotation direction moves together with the circular table 202, and the piston rod 474 compresses the spring 476 while compressing the cylinder tube. 466. Further, also in the shock absorber 452 on the downstream side in the rotation direction, the casing 464 moves together with the circular table 202, the spring 476 extends, and the piston rod 474 projects from the cylinder tube 466. As the elastic force of the spring 476 of the upstream shock absorber 452 increases, the elastic force of the spring 476 of the downstream shock absorber 452 decreases, and the bucket 400 and the reel holder 310 are moved to the reference position for relative rotation with the circular table 202. A returning reference phase restoring force is generated. Both springs 476 return the bucket 400 and the reel holder 310 to the reference relative phase with respect to the circular table 202 in cooperation with the potential energy storage mechanism including the connecting members 416 and 330, the bucket 400 and the reel holder 310 described above. It functions as a force. Further, the damping force of the upstream shock absorber 452 reduces the rotational speed of the bucket 400 and the reel holder 310 in the reverse direction with respect to the circular table 202. During acceleration of the circular table 202, the passage 498 of the upstream shock absorber 452, the projection 500, and the inner peripheral surface of the casing 464 function as damper means. In addition, in the upstream shock absorber 452, the plurality of passages 498 are formed so that the distance between the adjacent passages 498 becomes smaller toward the back of the first liquid chamber 470 as described above. As the amount of delay with respect to the table 202 increases, the area of the flow path between the first liquid chamber 470 and the third liquid chamber 496 decreases at an accelerated rate, and the speed reduction function of the damper means increases at an accelerated rate. And also functions as stopper means for defining the delay limit of the component holding portion regulating member with respect to the movable table while avoiding the occurrence of the occurrence.

  As the acceleration of the circular table 202 decreases, the reverse moment for rotating the bucket 400 and the reel holder 310 in the reverse direction with respect to the circular table 202 based on the moment of inertia of the circular table 202 decreases. , And the positive moment due to the reference phase restoring force based on the potential energy and the elastic force of the spring 476. At this time, the delay of the bucket 400 and the reel holder 310 with respect to the circular table 202 stops, and thereafter, the bucket 400 and the reel holder 310 move relative to the circular table 202 in the forward direction as the acceleration of the circular table 202 decreases. It rotates and the delay that has occurred is recovered. The bucket 400 and the reel holder 310 return to the reference relative phase with respect to the circular table 202 around the time when the circular table 202 is gradually decelerated and stops rotating. At this time, the damping force of the shock absorber 452 on the downstream side functions as damper means for reducing the forward rotation speed of the bucket 400 and the reel holder 310 with respect to the circular table 202. When the circular table 202 is decelerated, the passage 498 of the downstream shock absorber 452, the projection 500, and the inner peripheral surface of the casing 464 function as damper means. Further, the return timing of the bucket 400 and the reel holder 310 to the reference relative phase can be appropriately changed by changing the elastic coefficient of the spring 476 of the shock absorber 452 and the damping force. However, the return time to the reference relative phase is affected by the moment of inertia of the reel 308 accommodated in the reel holder 310 and the taped circuit component 242 wound therearound, Will change accordingly. In the present embodiment, generally, when the circular table 202 is stopped and then kept in a stopped state for a fixed time longer than a prescribed stop time required for supplying one circuit component, the bucket 400 and the reel holder 310 are used as a reference. It returns to the relative phase.

  As described above, the case where the circular table 202 is rotated for one pitch from the state in which the circular table 202 has been stopped for a long time and is again maintained in the stopped state for a long time has been described. Just by stopping for the specified stop time, the next one pitch rotation is performed again. In this case, the circular table 202 rotates before the bucket 400 and the reel holder 310 return to the reference relative phase, and the bucket 400 and the reel holder 310 move to the circular table 202 with an angle delay of one pitch or more. Will follow. That is, the feeder main body 254, which rotates integrally with the circular table 202, is intermittently moved one pitch at a time with rapid acceleration and deceleration, whereas the bucket 400 and the reel holder 310 have relatively small acceleration, The rotation follows the circular table 202 and the feeder body 254 at the deceleration. FIG. 13 shows the ideal state. In this figure, a state is shown in which the circular table 202 and the feeder body 254 rotate intermittently one pitch at a time, while the bucket 400 and the reel holder 310 follow at a constant speed with a constant angle delay. In this state, no vibration occurs in the supply device due to acceleration and deceleration of the bucket 400 and the reel holder 310. However, actually, the bucket 400 and the reel holder 310 are slightly delayed with respect to the curve indicating the change in the rotation angle of the circular table 202 and the feeder main body 254, and rotate while drawing a curve obtained by smoothing this curve to some extent. Therefore, the vibration of the supply device is reduced by the smoother curve.

  If the circular table 202 is stopped for longer than the prescribed stop time in order to continuously supply a plurality of circuit components to one feeder 200, the circular table 202 of the bucket 400 and the reel holder 310 is stopped during the stop. And the delay with respect to the feeder body 254 is reduced or eliminated. Prior to this disappearance, a state in which the bucket 400 and the reel holder 310 are temporarily ahead of the circular table 202 and the feeder main body 254, that is, an overshoot state may occur. In the present embodiment, in principle, the circular table 202 is rotated in one direction to sequentially position the respective component supply units of the plurality of feeders 200 at the component supply positions and supply the circuit components. When the rotation of the circular table 202 is reversed for the purpose of, for example, supplying the circuit components to the supplied feeder 200 again, the bucket 400 and the reel holder 310 rotate in the forward direction, while the circular table 202 and the feeder 200 rotate. A state occurs where the main body 254 is rotated in the opposite direction. When the bucket 400 and the reel holder 310 are out of the reference relative phase, the load torque of the circular table 202 may temporarily increase. The characteristics of the shock absorber 452, the acceleration and deceleration of the circular table 202, the mass of the reel container 314, the reel 308, and the mass of the taped circuit component 242 are set so that the amplitude of the vibration of the supply device does not exceed the set limit. It is necessary to make a selection. When the rotation direction of the circular table 202 is reversed, the circular table 202 is kept stopped for a certain period of time as necessary, and the vibration of the bucket 400 and the reel holder 310 with respect to the circular table 202 is completely or somewhat attenuated. After that, it is also possible to start the rotation in the opposite direction.

  If the bucket 400 and the plurality of reel holders 310 engaged with the bucket 400 are delayed with respect to the circular table 202 and the feeder body 254 at a small acceleration and deceleration, the bucket 400 having a large mass, Vibration of the entire supply device is significantly smaller than when the plurality of reel holders 310, reels 308, and taped circuit components 242 are repeatedly rotated and stopped with a large acceleration and deceleration together with the circular table 202 and the feeder body 254. Do it. Therefore, it is possible to improve the positioning accuracy of the feeder 200 and suppress occurrence of a supply error, or to increase the acceleration and deceleration of the circular table 202 to increase the supply efficiency, thereby improving the supply efficiency of the circuit component mounting system. The mounting efficiency can be improved.

  Further, the taped circuit component 242 is inserted into the guide groove 356 in the feeder main body 254, and is sandwiched from both sides in the width direction by the groove side surface of the guide groove 356, the cover driving bar 281 and the feed bar 283, and the carrier tape is formed. Since the sprocket 358 is engaged with the teeth of the sprocket 358 at the feed holes formed at 244 and is constrained in the width direction at two places separated in the longitudinal direction, the relative movement of the reel holder 310 with respect to the feeder main body 254 is prevented. Accordingly, a portion between the reel 308 of the taped circuit component 242 and the feeder main body 254 bends substantially along the connecting member 330, but the taped circuit component 242 rotates around the vertical axis on the feeder main body 254. And the longitudinal direction is parallel to the longitudinal direction of the feeder body 254. Kept, the circuit component 150 of the head that was peeled cover tape 246 is positioned in the component pickup position of precisely the component supply unit.

  Further, the vibration of the floor on which the present circuit component mounting system is installed is reduced, and the circuit component 150 held by the component suction nozzle 146 of the circuit component mounting device 14 is displaced or dropped, and the circuit component on the printed circuit board 20 is dropped. The displacement of the mounting position of the circuit component 150 and the displacement of the circuit component 150 already mounted on the printed circuit board 20 are prevented. In addition, it is less likely that the vibration is transmitted to the worker and the worker is uncomfortable.

  When all of the predetermined circuit components 150 mounted on one printed circuit board 20 are completed, the circular table 202 is in the supply start position, that is, the component supply unit of the feeder 200 that supplies the circuit components 150 first is in the component supply position. Is rotated to the position located at. At this time, the rotation direction of the circular table 202 is determined according to the central angle occupied by the feeder 200 mounted on the circular table 202. If the central angle is larger than 180 degrees, the rotation is performed in the same direction as during the supply, and if the central angle is smaller than 180 degrees, the rotation is performed in the opposite direction to that during the supply. The rotation direction is determined so that the rotation angle of the circular table 202 is small, and the circular table 202 is quickly returned to the supply start position.

  The circular table 202 is slowly accelerated and, after reaching a certain rotation speed, is rotated at that speed, and finally is gradually decelerated and stopped at the supply start position. At this time, the constant rotation speed of the circular table 202 is set higher than the maximum rotation speed at the time of positioning the feeder 200, and is returned to the supply start position in as short a time as possible. The values are the same or smaller. Even during the return rotation, the bucket 400 and the reel holder 310 are delayed with respect to the circular table 202 and the feeder body 254, and it is allowed to return to the reference relative phase after the circular table 202 stops. A vibration reduction effect is obtained.

  Further, in the substrate positioning and supporting device 22, after the substrate supporting table 40 is returned to the original position, it is raised to the rising end position, and after the holding of the printed circuit board 20 by the substrate holding device is released, the substrate loading / unloading is performed. It is carried out to the carry-out device 26 by the device. After or in parallel with the unloading, the printed circuit board 20 on which circuit components are to be mounted next is loaded by the loading device 24 and the substrate loading and unloading device, and is held by the board holding device, and the next mounting is performed. Preparations are made.

As is clear from the above description, in the present embodiment, the connecting device 312 constitutes the connecting means, and the bucket 400 provided with the engaging members 404 and 406 as the engaging portions constitutes the reel holding portion regulating member. I have.
As described above, the connecting device 402 that connects the bucket 400 to the circular table 202 also allows the bucket 400 to be delayed with respect to the circular table 202 and uses the bucket 400 as a reference based on the rotation of the connecting member 416. It has the function of returning to the relative phase. The coupling device 402 is a regulating member attaching device that attaches the bucket 400 to the circular table 202, and is a regulating member delay / return device. In the present embodiment, the regulating member delay / return device is doubled. be able to.

  Further, the relative rotatable angle between the circular table 202 and the feeder body 254 and the bucket 400 and the reel holder 310 is desirably small from the viewpoint of easy supply of the taped circuit component 242, and the vibration of the supply device is reduced. It is desirable that the size is large from the viewpoint of ease of the operation. Although the effect of reducing the vibration can be obtained to some extent even within an angle of one pitch, it is generally preferable to set the angle to be larger than one pitch, and it is more preferable to set the angle to two pitches or more.

A circuit component supply device according to another embodiment of the device invention will be described with reference to FIGS.
In the rotary circuit component supply device 600 of the present embodiment, the rotary tables that hold the feeder 200 are two sector tables 602 and 604. The center angles of the fan-shaped tables 602 and 604 are equal to each other, and are smaller than 120 degrees in the present embodiment.

  As shown in FIG. 14, a sleeve 610 is attached to a support shaft 608 fixed to the base 10 in a vertical direction via a bearing 612 so as to be rotatable about an axis extending in the vertical direction and immovable in the axial direction. The fan-shaped table 602 is concentrically fixed to the upper part of the sleeve 610. A driven gear 614 is fixed to the lower end of the sleeve 610, and the rotation of the table rotation servomotor 616 is reduced and transmitted by the gears 618, 620, 622, 624, and 626, whereby the fan-shaped table 602 is formed. It can be rotated to any position at any angular velocity. The table rotation servomotor 616, the driven gear 614, and the gears 618 to 626 constitute an independent rotation driving device 628 together with the control device 690 shown in FIG.

  A fan-shaped table 604 is attached via a bearing 630 to a lower portion of the sleeve 610 below the portion to which the fan-shaped table 602 is fixed so as to be rotatable around an axis extending in the up-down direction and immovable in the axial direction. A driven gear 632 is fixed to the lower end of the sector table 604. As shown in FIG. 15, the rotation of the table rotation servomotor 634 is reduced and transmitted by gears 636, 638, 640, 642, and 644. Thus, the fan-shaped table 604 is rotated to an arbitrary position at an arbitrary angular velocity. The table rotation servomotor 634, the driven gear 632, and the gears 636 to 644 together with the control device 680 constitute an independent rotation drive device 646. The fan-shaped tables 602 and 604 are rotated by dedicated independent rotation driving devices 628 and 646, respectively.

  Partially annular positioning plates 650 and 652 each having a plurality of positioning grooves formed thereon and partial annular stopper plates 654 having inclined contact surfaces are fixed to the two sector tables 602 and 604, respectively. , Engagement devices 656 are provided corresponding to the portions to which the plurality of feeders 200 are attached. The engagement device 656 is configured similarly to the engagement device 384, and the feeder 200 is attached to the sector tables 602 and 604 in the same manner as in the above-described embodiment. The feeder body 254 is positioned on the fan-shaped tables 602 and 604 in the width direction and the longitudinal direction, and is attached to the fan-shaped tables 602 and 604 while being prevented from floating from the fan-shaped tables 602 and 604. It is hung downward from the middle part in the longitudinal direction.

  The reel holder 310 is accommodated in and engaged with buckets 660 and 662 attached to the sector tables 602 and 604, respectively. Each of the buckets 660 and 662 has a partially annular shape, and has a container shape that opens upward, and has a plurality of fitting grooves therein, respectively. Has been fixed. The buckets 660 and 662 are relatively rotatably connected to the fan-shaped tables 602 and 604 by three connecting devices 668 respectively. The coupling device 668 is configured similarly to the coupling device 402 that couples the bucket 400 to the circular table 202, and includes two hinge devices 670 and two coupling members 672.

  Each of the fan-shaped tables 602 and 604 is provided with two regulating member delay / return devices 676. The regulating member delay / return device 676 is configured similarly to the regulating member delay / return device 450 of the above embodiment, includes two commercially available shock absorbers 678, 679, and the buckets 660, 662 each have a sector shape. It is provided opposite to both sides of the engaging portion 680 provided at right angles to the rotation direction of the tables 602 and 604.

  Therefore, after the sector tables 602 and 604 are smoothly accelerated, they are smoothly decelerated and the pitch is one pitch, that is, the central angle of the sector tables 602 and 604 is determined by the number of all the feeders 200 that can be mounted on the sector tables 602 and 604. The buckets 660, 662, and 662 are rotated when the component supply unit of the feeder 200 is positioned at the component supply position by being rotated by the divided angle, when moving to the component supply start position, or when moving to a standby area described later. The reel holder 310 lags behind the fan-shaped tables 602 and 604 and the feeder main body 254, respectively, and the fan-shaped tables 602 and 604 and the acceleration and deceleration are smaller than the acceleration and deceleration of the fan-shaped tables 602 and 604 and the feeder main body 254. It rotates following the feeder body 254 and requires less vibration. Is the same as the serial embodiment.

  The circuit component supply device 600 is covered with a safety cover 684. An opening / closing door 686 is attached to the safety cover 684. The interlock of the door 686 is released, and the operator can manually open and close the door 686 even during automatic operation. Although not shown, a shutter device is provided for partitioning the work area from the standby area so that the worker does not come into contact with the operating sector table. As will be described later, in the circuit component supply device 600 of the present embodiment, the two fan-shaped tables 602 and 604 may supply the circuit components alternately. This area is provided on the opposite side to the component supply position with respect to the support shaft 608, and is an area for one fan-shaped table. The standby area is also a retreat area where the fan-shaped table retreats from the work area. The working area is an area on the component supply position side with respect to the support shaft 608, and has an area capable of sequentially positioning all the feeders 200 mountable on the fan-shaped table at the component supply position, and is used for supplying circuit components. used. The work area is also a component supply area. Each central angle of the sector tables 602 and 604 is smaller than 120 degrees, and the sector table that supplies circuit components in the work area is a sector table that stands by in the standby area regardless of whether it is located at the supply start position or the supply end position. Do not interfere with.

  The shutter device has a pair of shutters provided so as to be able to move up and down. The shutter is provided at two boundaries between the standby area and the work area so as to be able to move up and down, respectively. It is raised and lowered to the shielding position located on the side.

The circuit component mounting system including the circuit component supply device 600 is controlled by a control device 690 shown in FIG. The control device 690 mainly includes a computer 530 as in the case of the control device 520 of the above-described embodiment. The output interface 534 has a table rotation via drive circuits 692 and 694 in addition to the belt drive motor 28 and the like. Servo motors 616 and 634 are connected. Further, the ROM 524 stores various programs necessary for mounting circuit components, executing three types of circuit component supply modes described later, and the like.
The table rotation servomotors 616 and 634 are a kind of electric motor as a driving source, and are motors whose rotation angles can be controlled. A step motor may be used instead of the servo motor.

In the circuit component supply device 600 of the present embodiment, circuit components are supplied in one of three modes: a joint mode, a table replacement mode for the same type of board, and a table replacement mode for a different type of board.
In the joint mode, as shown in FIG. 17, two fan-shaped tables 602 and 604 are rotated together to supply circuit components as if they were one table. This is executed when there are many types of circuit components to be supplied and the number of feeders is insufficient with one fan-shaped table.
In the same-type board table replacement mode, the same type of feeder is mounted on each of two fan-shaped tables, and as shown in FIG. 18, one of the fan-shaped tables 604 is used as an operation table to supply circuit components in a work area, and the other is used. The fan-shaped table 602 is made to stand by in a standby area as a standby table, and when it is necessary to replace the operating table and the standby table, for example, when the taped circuit parts are lost and need to be replenished, the operating table and the standby table In this mode, circuit components are supplied by using the standby table as an operation table, the operation table is made to stand by in a standby area as a standby table, and replenishment of circuit components is performed.
In the table switching mode for different kinds of substrates, as shown in FIG. 18, one of the two sector-shaped tables 602 and 604 is used as an operation table, and the other is used as a standby table to supply circuit components alternately. When the type is different and the type of printed circuit board that supplies circuit components changes, the operation table and the standby table are switched, circuit components are supplied as the standby table as the operation table, and the standby table is used as the standby table in the standby area. This is a mode in which the printer is put on standby and replaced with a feeder according to the type of printed circuit board.

Each mode will be described in more detail.
When supplying circuit components according to the joint mode, the two sector tables 602 and 604 are rotated together. Of the two fan-shaped tables 602 and 604, the fan-shaped table that supplies the circuit components is the main control target table, and the rotation acceleration and the rotation acceleration and rotation are changed so that the feeder 200 is replaced when the component holding head 64 reaches the component suction position. The deceleration is set. When the preceding one of the two sector tables 602 and 604 supplies circuit components, the acceleration and deceleration of the subsequent sector table are made smaller than those of the preceding sector table. As a result, the two sector-shaped tables rotate together, and the moment of inertia is large, but less vibration is required. Note that while the preceding sector table stops and the feeder 200 supplies the circuit components, the subsequent sector table catches up with the preceding sector table, and the two sector tables do not separate. Further, when the preceding sector table rotates in the reverse direction for some reason, the succeeding sector table is also rotated in the opposite direction at the same acceleration and deceleration as the preceding sector table, thereby avoiding collision.

  When the supply of the circuit components by the feeder 200 held by the leading sector table ends, the circuit components are supplied by the feeder 200 held by the subsequent sector table. At the time of this change, the succeeding sector table is rotated at the same acceleration and deceleration as the first sector table, and the component supply unit of the feeder 200 that supplies the first circuit component is quickly positioned at the component supply position. You. The fan-shaped table after the supply of the circuit components is retracted to a standby area (the standby area is the same as the standby area in the same-substrate table switching mode and the different-substrate table switching mode), and the circuit components are stored in the standby area. Wait for the end of supply. The shutter of the shutter device is open.

  After the supply of the circuit components by the subsequent sector table is completed, the two sector tables 602 and 604 are placed at the supply start position, that is, the component supply unit of the feeder that supplies the first circuit component in the sector table that supplies the circuit component first. It is moved to a position located at the component supply position and supplies a circuit component to be mounted on the next printed circuit board. At this time, the rotation direction of the fan-shaped tables 602 and 604 is set to a direction that requires a small rotation angle. In the present embodiment, it is rotated in the same direction as when supplying the circuit components.

  When the taped circuit components are exhausted in the feeder 200, the fan-shaped tables 602 and 604 are moved to the standby area based on the component supply signal, and the taped circuit components are supplied. Whether or not the circuit components have been exhausted is determined by counting the number of circuit components supplied to each of the plurality of feeders 200 in the computer 530, and the component supply signal is issued before all the circuit components are exhausted in each feeder 200. Can be The number of supplied circuit components of the computer 530 is counted, and when the set number is reached, a part that issues a component supply signal constitutes a component exhaustion detection unit and a signal generation unit. Apart from this, it is also possible to detect a part break by, for example, providing a mark on the carrier tape and providing a mark detecting means for detecting the mark. The supply of the circuit components is performed after the supply of all the circuit components to be supplied to one printed circuit board is completed.

  The direction of rotation of the fan-shaped tables 602 and 604 when moving to the standby area for replenishment of circuit components is a direction in which the rotation angle is small. After moving the fan-shaped tables 602 and 604, the operator opens the opening / closing door 686 and replaces the feeder 200 having no taped circuit components with the feeder 200 on which the taped circuit components are set. Is closed, and when the start button is operated, the mounting of the circuit components is restarted. When the feeder is replaced, the fan-shaped tables 602 and 604 may be rotated and moved to a position where work is easy.

  If it is necessary to replenish the circuit components for each of the feeders 200 of the sector tables 602 and 604 at the same time, the exchange of the feeders 200 is performed for both the tables 602 and 604. When it is necessary to supply the circuit components to the feeder 200 of the main control target table, the circuit components may be supplied only to the main control target table. If so, circuit components may be replenished after the generation of the component supply signal.

  When the table switching mode for the same kind of board is executed, the two sector tables 602 and 604 alternately supply circuit components. While one is supplying the circuit components, the other fan-shaped table is kept in the standby area, and in parallel with the supply of the circuit components by the fan-shaped table as the operation table, the feeder 200 having no taped circuit components is supplied. Exchange and the like are performed. One fan-shaped table supplies the circuit components, but the interlock is released and the door 686 can be opened. In addition, the pair of shutters are lowered to the shielding position, so that the worker can see the boundary between the standby area and the work area, and avoid contact with the working sector table.

If there are no more circuit components in the feeder 200 of the operating table that is currently supplying the circuit components, the operating table and the standby table are switched based on the component supply signal. The replacement is performed after all the circuit components to be supplied to one printed circuit board have been supplied. If the feeder 200 is being replaced in the standby area when the component supply signal is issued, the mounting of the circuit components is interrupted, the replacement of the feeder 200 is completed, and after the door 686 is closed, the start button is operated. As a result, the standby table and the operating table are switched, supply and mounting are resumed, and the feeder 200 is exchanged for the standby table. At this time, the shutter is raised to the evacuation position to allow the operation table and the standby table to be changed, and after the change, the shutter is lowered to the shielding position.
When the replacement of the feeder 200 has already been completed in the standby area when the component supply signal is issued, the shutter is immediately opened and the operation table and the standby table are replaced.

  During execution of the table switching mode for different kinds of substrates, while one of the two sector tables 602 and 604 supplies circuit components, the other sector table is in the standby area, and then the circuit components are in the standby area. The feeder 200 having the circuit components according to the type of the printed circuit board to be mounted is set. When the circuit components of the feeder 200 of the operation table are exhausted, the operation table is moved to the standby area and the feeder 200 is replaced. At this time, if the replacement operation of the feeder 200 for the standby table is being performed, the operation is interrupted.

  When the door 686 is closed, the shutter is opened, the standby table retracts from the standby area, the operating table moves to the standby area, and the door 686 is opened to exchange the feeder 200 for the operating table. After the replacement, if the door 686 is closed, the operation table is moved to the work area to resume the supply of the circuit components, and the standby table is returned to the standby area, the shutter is closed, and the feeder replacement for the standby table is performed. If the work has been interrupted, the work is resumed.

  If the type of printed circuit board on which the circuit components are mounted changes, the shutter is opened, the operation table and the standby table are changed, the standby table becomes the operation table, the circuit components are supplied, and the operation table is on standby. The feeder 200 is exchanged as a table.

  As is clear from the above description, in the present embodiment, the sector tables 602 and 604 of the control device 690 are rotated together, and the plurality of feeders 200 held by the sector tables 602 and 604 are sequentially moved to the component supply position. The part for positioning and supplying circuit components constitutes a joint mode control means, the preceding sector table is set as the main control target table, and the subsequent sector table is set as the main control target table at a smaller acceleration and deceleration than the main control target table. The portion that follows the cruise control constitutes a gradual follow-up control unit. Further, a part for maintaining one of the two sector-shaped tables 602 and 604 of the control device 690 as an operation table, maintaining the other in a standby area, and replacing both as necessary constitutes a table replacement mode control means. The controller 690 also needs to change the operating table to the table changing mode control means according to the type of the printed circuit board on which the circuit component is to be mounted next, and supply the taped circuit components to the feeder on the operating table. A means for causing the table change mode control means to change the operation table in response to the signal to the effect is also configured.

  When supplying the circuit components in the joint mode, if the sum of the center angles of the two sector tables is smaller than 180 degrees, the area in which the preceding sector table is retracted after the end of the supply of the circuit components is the component. It can be set to the component supply area side than the area 180 degrees away from the supply position, and after the supply of the circuit parts by the subsequent sector table is completed, the two sector tables are set at the end of the supply of the circuit parts. It can be rotated in the opposite direction and returned to the supply start position.

  In the embodiment, the guide members 350 and 352 for guiding the taped circuit component are formed by bending a plate-shaped member, and the width direction of the taped circuit component is determined by the feeder body 254 and the reel holder 310. Is substantially parallel to the relative movement direction, but the width direction of the taped circuit component 242 may be substantially perpendicular to the relative movement direction at the portion where the coupling device 312 is provided. .

For example, as shown in FIGS. 19 and 20, the extension 338 of the side wall 318 of the reel container and the support member 332 fixed to the lower surface of the main body member 250 of the feeder 200, as shown in FIG. Then, the annular guide member 700 is fixed at an angle of 45 degrees in the same direction with respect to the plate surface of the connecting member 330. The inside of the guide member 700 is sized to allow the taped circuit component 242 to pass through and maintain a twisted state. Further, the annular guide member 702 is provided in the inner space of the upper portion of the portion of the extension portion 338 to which the guide member 700 is fixed and the lower portion of the portion of the support member 332 to which the guide member 700 is fixed. Is fixed in a direction in which the longitudinal direction of the member becomes parallel to the plate surfaces of the extending portion 338 and the support member 332. The inside of the guide member 702 is sized to allow the taped circuit component 242 to pass through and maintain a twisted state. A guide member 704 having a plate shape and being curved is fixed to the support member 332. Guide members 700 and 702 are provided in the extension part 338 in place of the two guide members 350.
Note that the taped circuit component 242 is an embossed type, and the length of the guide members 700 and 702 (the dimension in the direction parallel to the rotation axis of the circular table) is determined by the size at which at least one component housing is located inside. Is done.

  After extracting the taped circuit component 242 from the reel container, the taped circuit component 242 is guided to the main body member 250 through the guide members 700 and 702. The taped circuit component 242 passed through the lower guide member 700 is twisted by 45 degrees, and is further twisted by 45 degrees by passing through the lower guide member 702, for a total of 90 degrees. The taped circuit component 242 is passed through the upper guide member 702 and is kept in a twisted state by 90 degrees, and then is passed through the upper guide member 700 and is twisted back by 45 degrees. Is further twisted back by 45 degrees, for a total of 90 degrees.

  The portion between the feeder main body of the taped circuit component 242 and the reel, which bends substantially along the connecting member 330 when the reel holder is relatively moved with respect to the feeder main body, has a width direction perpendicular to the relative movement direction. It is done. Therefore, when the reel holder is relatively moved with respect to the feeder main body, the taped circuit component 242 bends easily along substantially the connecting member 330, and the reel holder is secured while ensuring smooth feeding of the taped circuit component 242. Are allowed to move relative to the feeder body, and interference between the adjacent feeders 200 and the connecting device 312 is avoided.

In each of the above embodiments, the regulating member delay / return devices 450 and 676 include the two shock absorbers 452, 454, 678, and 679 provided opposite to each other. The return device may be constituted by a shock absorber 720 shown in FIG.
A piston 726 is slidably fitted in a cylinder bore 724 in a housing 722 fixed to a circular table (not shown) while maintaining liquid tightness. Piston rods 728 and 730 are provided on both sides of the piston 726 so as to project from the housing 722, and one piston rod 730 is fixed to the engaging portion 456 of the bucket 400. In the first liquid chamber 732 and the second liquid chamber 734 on both sides of the piston 726, a first compression coil spring 736 and an second compression coil spring 738 as elastic members, which are a kind of urging means, are provided. I have. These compression coil springs 736 and 738 are the same. A passage 740 is formed in the piston 726 to communicate the first liquid chamber 732 and the second liquid chamber 734, and a throttle 742 is provided in the passage 740.

  When the circular table rotates, for example, if it rotates to the right in FIG. 21, the casing 722 moves together with the circular table, and the piston 726 moves in the direction of retracting into the cylinder bore 724 while compressing the first compression coil spring 736. I do. At this time, the second compression coil spring 738 expands, the first compression coil spring 736 is compressed, and the bucket 400 and the reel holder are delayed with respect to the circular table and the feeder body.

When the inertia force that causes the bucket 400 and the reel holder to delay the circular table and the feeder main body and the biasing force of the first compression coil spring 736 are balanced, the bucket 400 becomes the first compression coil spring 736. Is rotated in a direction to follow the circular table. At this time, the movement of the piston 726 is allowed by the liquid flowing from the second liquid chamber 734 to the first liquid chamber 732 through the passage 740, but the flow of the liquid is restricted by the restrictor 742. Is reduced, the bucket 400 follows the circular table with an acceleration and a deceleration smaller than the acceleration and deceleration at the time of rotation of the circular table, and the vibration can be reduced.
When the circular table rotates in the opposite direction (to the left in FIG. 21), the second compression coil spring 738 is compressed, and the urging force causes the bucket 400 to follow the circular table. Deceleration can be kept small.

  Further, in the above-described embodiment, the bucket 400 is relatively rotatably connected to the circular table 202 by the connecting device 402 which is a restricting member mounting device having two hinge devices 414, but the restricting member mounting device is shown in FIG. As described above, guide members 760 and 762 may be fixed to circular table 202 and bucket 400, respectively, and fitted to be rotatable relative to each other.

The guide member 760 has an annular shape with a T-shaped cross section, includes an engagement protrusion 764, and is concentrically fixed to the lower surface of the circular table 202. The guide member 762 also forms an annular shape, and the engagement protrusion 764 is fitted into the inverted T-shaped cross-section in which the engagement protrusion 764 is relatively movable in the circumferential direction and is fitted so as not to come out in a direction parallel to the rotation axis of the circular table 202. 766 are provided and fixed to the bucket 400. When the circular table 202 is rotated, the guide members 760 and 762 rotate relatively, and the bucket 400 relatively rotates with respect to the circular table 202.
These paired guide members may be provided over the entire circumference of the circular table and the bucket, or partially annular guide members may be provided at a plurality of locations. An annular guide member may be provided on one of the circular table and the bucket, and a partial annular guide member may be provided on a plurality of locations on the other.
When the restricting member attaching device includes a pair of guide members as described above, an urging means, which is a type of a returning device, is provided to return the reel holding portion restricting member to the reference relative phase. Further, a damper means may be provided.

  In the above-described embodiment, when the circular table is rotated, the whole of the reel holder is moved in parallel with the feeder main body in a direction substantially parallel to the moving direction of the feeder accompanying the rotation of the circular table. However, as shown in FIG. 23, the reel holder 780 serving as a reel holder is rotated relative to the feeder body 782 around a rotation axis orthogonal to the moving direction of the feeder 784 by rotation of a circular table (not shown). They may be connected as much as possible.

  Although the reel holder 780 and the feeder body 782 are schematically illustrated in FIG. 23, they are configured similarly to the reel holder 310 and the feeder body 254, and the feeder body 254 is a rotary table. It is fixed to a fan-shaped table (not shown). The reel holder 780 includes a reel container 786 and a shaft (not shown) that rotatably supports the reel. The reel container 786 is orthogonal to the moving direction of the feeder 784 by the shaft 788 on the feeder body 782. It is attached so as to be relatively rotatable around the rotation axis.

  A cushion member 794 is provided below each of a pair of side surfaces (outer surfaces of a pair of side walls supporting a reel support shaft) 792 of the reel container 786 of each reel holder 780. The cushion member 794 is made of, for example, a foam material such as urethane foam rubber, and a rubber layer 796 as a high friction coefficient material layer is provided on the surface of the cushion member 794. The gap between the adjacent reel holders 780 is such that a slight gap exists between the rubber layers 796 of the cushion members 794 provided on each reel holder 780 in a state where the reel holders 780 are not rotated with respect to the feeder main body 782. The size is provided.

  When the fan-shaped table is rotated and the feeder main body 782 is moved together with the fan-shaped table in the direction indicated by the arrow in FIG. 23, the reel holder 780 rotates around the axis of the shaft 788 as shown in FIG. Lags behind the feeder body 782. At this time, the adjacent reel holders 780 have a small gap between them and come into contact with each other. However, since they come into contact with the cushion member 794, the collision noise can be reduced. When the reel holder 780 further rotates from this state, the cushion member 794 is compressed, and the adjacent reel holder 780 relatively moves in a direction parallel to the side surface thereof. At this time, since the reel holder 780 comes into contact with the rubber layer 796 and moves relatively, the swing (vibration) of the reel holder 780 is attenuated. When the reel holder 780 rotates with respect to the feeder body 782 and lags, potential energy is stored, and the reel holder 780 is returned to the reference relative phase. Each reel holder 780 of the plurality of feeders spreads in the direction in which the component supply units of the feeders are arranged with the rotation, but since these feeders are mounted on the fan-shaped table, the spreading is allowed.

  Even when the reel holder is connected to the feeder main body so as to be relatively rotatable, adjacent reel holders may be connected to each other by a reel holder restricting member. For example, as shown in FIGS. 25 and 26, an engaging pin 806 is provided upright on an end surface 804 of the circular container (not shown) of the reel holder 802, which constitutes the reel holder 800, on the side opposite to the rotation axis side. And the reel holding portion regulating member 808 is engaged. The engagement pin 806 has a stepped shape. The reel holding portion regulating member 808 has a plate shape, is not flexible, is made of a rigid body, and has a U-shaped notch serving as an engaged portion that opens on the lower surface at a position corresponding to the reel holding device 800. 810 are formed, and are engaged with the small-diameter portions 812 of the engagement pins 806 in the respective notches 810 so as to be relatively rotatable. The large-diameter portion 814 of the engaging pin 806 prevents the reel holding portion regulating member 808 from being pulled out of the engaging pin 806 in a direction parallel to the axis of the engaging pin 806.

  A gap is provided between the adjacent reel holders 800 so that the reel holders 800 do not collide with each other even if the reel holders 800 rotate with respect to the feeder main body 816. Therefore, even if the rotary table is rotated and the reel holder 800 rotates around the axis of the shaft 818 with respect to the feeder main body 816 as shown in FIG. 27, the adjacent reel holders 800 collide with each other. Never. The plurality of reel holders 800 are connected to each other by the reel holding portion restricting member 808, and do not individually swing and collide. The reel holder 800 rotates with respect to the feeder main body 816, and the reel holder restricting member 808 slightly rises together with the reel holder 800 to store potential energy. 808 is returned to the reference relative phase.

In the embodiment shown in FIGS. 25 to 27, a plurality of reel holders may be connected by a reel holding part regulating member, and a cushion member may be provided on each reel holder. If the cushion member is provided, even if the adjacent reel holders collide, the collision occurs at the cushion member, so that the collision noise can be reduced. When the reel holder is further rotated after the contact, the cushion member is compressed, and the rotation of the reel holder is permitted. If the cushion member itself is formed of a material having a high friction coefficient, or if a high friction coefficient material layer is formed on the surface of the cushion member, the vibration is attenuated. Alternatively, as in the above-described embodiments, a regulating member delay / return device including one or two sets of urging means and damper means is provided to return the reel holding portion regulating member 808 to the reference relative phase. May be reduced.
Further, a plurality of reel holders may be connected by a flexible reel holding portion restricting member such as rubber so that the plurality of reel holders do not swing independently. In this case, when the adjacent reel holder is further rotated after the contact, the reel holding portion regulating member is extended to allow the rotation of the reel holder. In addition, if a cushion member is provided on the reel holder, the collision noise when the adjacent reel holders come into contact with each other can be reduced, and the cushion member itself can be formed of a material having a high coefficient of friction, or the cushion member can have a high surface. If the friction coefficient material layer is formed, the vibration is attenuated by friction when the reel holder is further rotated.
In the embodiment shown in FIGS. 23 and 24, the cushion member itself may be formed of a material having a high friction coefficient, and the vibration may be damped by friction.
If the rotary table is a fan-shaped table, spreading with the rotation of the reel holder is allowed. For example, if there is a gap between adjacent reel holders that does not collide with each other during rotation, the reel holder A plurality of reel holders do not spread during rotation, and a circular table can be used. Alternatively, if a smaller number of feeders than the total number that can be mounted on the circular table are mounted and the feeder group is formed into a fan shape, the spread when the reel holder is rotated is allowed, and the circular table can be used.

  Note that when supplying circuit components in a joint mode in a circuit component supply device having two sector tables, it is not essential to always rotate the two sector tables together, and the subsequent sector tables are made to stand by in a standby area, Immediately before the end of the supply of the circuit components by the preceding sector table, it may be moved to a position following the preceding sector table and rotated together.

Further, in the embodiment shown in FIGS. 1 to 13, four connecting devices 402 and four restricting member delay / return devices 450 for connecting the circular table 202 and the bucket 400 are provided, but not limited to four. Any number may be provided. Although two or more connecting devices 402 are provided, as the number of the regulating member delay / return devices 450 increases, the strength of the bucket can be reduced. The regulating member delay / return device 450 receives at least part of the inertial force of the large number of reel holders 310 received by the bucket, and the greater the number of regulating member delay / return devices 450, the more inertial force is received. It is.
Further, in the embodiment shown in FIGS. 14 to 18, three connecting devices 668 for connecting the sector tables 602 and 604 and the bucket 400 are provided, and two regulating member delay / return devices 676 are provided. The number of coupling devices is not limited to three, and may be two or four or more. The number of regulating member delay / return devices is not limited to two, and one or three or more regulating members may be provided.

  Further, in the above-described embodiment, the circular table and the fan-shaped table are rotated in one direction in principle to supply the circuit components. However, the circuit components are supplied by rotating the circular table and the sector-shaped table in both forward and reverse directions. It may be. For example, if the number of circuit components to be supplied to one type of printed circuit board is small and the number of feeders required for supplying the circuit components is less than the total number of feeders that can be fixed to the circular table, a part of the circular table After rotating the circular table in the forward direction, the component supply units of the plurality of feeders are sequentially positioned at the component supply position to supply the circuit components, and then the circular table is rotated in the reverse direction. Then, the component supply units of the plurality of feeders are sequentially positioned at the component supply positions in the reverse order to supply the circuit components. With this configuration, the circular table does not have to be returned to the supply start position after the completion of the supply of the circuit components by all of the plurality of feeders, as in the case where the circuit components are supplied by rotation in one direction. Supply efficiency can be improved. When the circuit components are supplied by rotating the circular table in one direction, if the central angle occupied by the plurality of feeders on the circular table is smaller than 180 degrees, the circular table is moved in the same direction as when supplying the components to return to the supply start position. Rotation in the opposite direction requires less rotation angle than rotation, and can be returned to the supply start position in a short time, but still requires a return time. If the circuit components are supplied, the return time is not required, and the supply efficiency can be improved. Even if the central angle occupied by the plurality of feeders on the circular table is 180 degrees or more (smaller than 360 degrees), if the circuit components are supplied by rotating in the opposite direction, the return time is eliminated and the circuit components are supplied efficiently. I can do it. Alternatively, a plurality of types of printed circuit board feeders may be mounted on one circular table, and the circuit components may be supplied by rotating the circular table in both forward and reverse directions for each type of printed circuit board. A plurality of feeder groups, each of which is a set of a plurality of feeders for one type of printed circuit board, are provided on a circular table, and the circular table is rotated in both forward and reverse directions for each group. The circuit components are supplied to each feeder. Also in the case of a fan-shaped table, the circuit components may be supplied to the feeder when rotating in the reverse direction.

  Further, in each of the above embodiments, even if the circular table and the sector table rotate in either the forward or reverse direction, the vibration is suppressed by the reel holder and the bucket being delayed with respect to the feeder body, the circular table and the sector table. However, if the rotation direction of the circular table at the time of supply of the circuit components is determined in one direction and does not rotate in the opposite direction, only one set of the urging means and the damper means may be provided. . The urging means is provided on the upstream side in the rotation direction of the circular table of the engaging portion provided on the bucket, and the damper means is provided on the downstream side. This damper means is a directional damper means for suppressing the relative movement speed when the reel holding portion regulating member returns to the reference relative position to be smaller than the relative movement speed when moving away from the reference relative position.

  Further, in the above embodiment, the reel holder has a shaft, and the reel around which the taped circuit component is wound is rotatably supported by the shaft.However, the reel support member is not limited to the shaft, A plurality of rollers may be provided in the reel container so as to be rotatable around a rotation axis parallel to the width direction of the reel holder, and the reels may be rotatably supported by the rollers.

  In the embossed taped circuit component, a band-shaped component receiving portion protrudes from between a pair of supported portions forming a long shape, and a large number of component receiving recesses are formed in the component receiving portion at equal intervals. It may be done. Further, the taped circuit component is not limited to the embossed type, and in addition, for example, the circuit component is accommodated in each of a large number of component accommodating recesses formed at equal intervals on a carrier tape having a constant thickness, The cover tape may prevent the component tape from jumping out of the component accommodating concave portion, and the carrier tape may be supported and fed from below by the guide surface of the feeder main body in the entire width direction.

Further, the present invention can be implemented in a mode in which the combination of the components of the above embodiments is changed.
In addition, without departing from the scope of the claims, various modifications and improvements can be made to the present invention based on the knowledge of those skilled in the art.

BRIEF DESCRIPTION OF THE DRAWINGS It is a side view (partial cross section) which shows the circuit component mounting system which is one Embodiment of this invention. It is a top view which shows the said circuit component mounting system. It is a side view (partial section) which shows the circuit component mounting device which constitutes the above-mentioned circuit component mounting system with some rotation type circuit component supply devices. It is a timing chart which shows the relation between the rotation angle of 15 rotation plates of the said circuit component mounting apparatus, and time. It is a front view which mainly shows the feeder main-body part of the feeder which comprises the said rotary type circuit component supply apparatus. FIG. 3 is a plan view showing a part of a circular table that constitutes the rotary circuit component supply device and holds the feeder. It is a side view (partial section) showing the above-mentioned feeder with a part of the above-mentioned circular table. It is a front view showing the connecting device which connects the feeder main part of the above-mentioned feeder, and the reel holder. It is a side sectional view showing the portion where the guide groove for guiding the taped circuit component of the feeder main body was provided. It is a front view which shows the connection device which connects the bucket which supports the said reel holder, and the said circular table, and the restricting member delay / return device. It is front sectional drawing which shows the shock absorber which comprises the said restricting member delay / return device. FIG. 2 is a block diagram showing a portion of the control device that controls the circuit component mounting system that is closely related to the present invention. It is a graph which shows the ideal transition of the rotation angle of a circular table and a bucket at the time of rotation of a circular table in the above-mentioned rotary type circuit component supply device. It is a side view (partial section) which shows a part of circuit component mounting system which is another embodiment of the present invention. FIG. 15 is a plan view showing the circuit component mounting system shown in FIG. 14. FIG. 15 is a block diagram illustrating a portion that is deeply relevant to the present invention in a control device that controls the circuit component mounting system illustrated in FIG. 14. FIG. 15 is a diagram illustrating one of the circuit component supply modes in the rotary circuit component supply device of the circuit component mounting system shown in FIG. 14. FIG. 15 is a diagram illustrating another mode of the circuit component supply mode in the rotary circuit component supply device of the circuit component mounting system illustrated in FIG. 14. It is a front view which shows another aspect of the guide member of the tape-formed circuit component provided in the feeder of a rotary-type circuit component supply apparatus. FIG. 20 is a plan view showing the guide member shown in FIG. 19. It is a front view (partial section) which shows roughly the control member delay / return device of the rotary type circuit component supply device of the circuit component mounting system which is another embodiment of the present invention. It is a front sectional view showing roughly a regulation member attaching device which attaches a bucket of a rotary type circuit component supply device of a circuit component attaching system which is another embodiment of the present invention to a circular table. It is a side view which shows roughly the feeder which comprises the rotary circuit component supply apparatus of the circuit component mounting system which is another embodiment of this invention. FIG. 24 is a side view showing a state in which a reel holder constituting the feeder shown in FIG. 23 is rotated with respect to the feeder main body. It is a side view showing the state where each reel holder which constitutes a plurality of feeders of a rotary type circuit parts supply device of a circuit parts mounting system which is another embodiment of the present invention was connected by a reel holding part regulation member. FIG. 26 is a front view (partial cross section) showing a portion where the reel holding portion restricting member is engaged with the reel holding tool shown in FIG. 25. FIG. 26 is a side view showing a state where the reel holder shown in FIG. 25 is rotated with respect to the feeder main body.

Explanation of reference numerals

  12: Rotary circuit component supply device 200: Feeder 202: Circular table 204: Table driving device 250: Main body member 252: Feeding device 254: Feeder main body 308: Reel 310: Reel holder 312: Connecting device 328: Hinge device 330 : Connecting member 332: supporting member 334, 342: hinge member 344: hinge pin 400: bucket 402: connecting device 414: hinge device 416: connecting member 450: regulating member delay / return device 520: control device 600: supply of rotary circuit components Device 602, 604: Fan-shaped table 628, 646: Independent rotation drive device 660: Bucket 668: Connecting device 676: Restriction member delay / return device 690: Control device 720: Shock absorber 780: Reel holder 782: Feeder body 784: Feeder 800: Reel holder 808: Reel holder regulating member 816: Feeder body

Claims (9)

A feeder for accommodating one type of each circuit component and sequentially supplying one from each component supply unit,
A feeder body unit having a feed mechanism for feeding the circuit components in the front-rear direction and positioning the circuit components one by one in the component supply unit;
A reel holding portion provided in a posture hanging down from the feeder main body and holding a reel around which the tape-formed circuit component is wound, in a state where the entire reel is positioned below the feeder main body. feeder.   The feeder according to claim 1, further comprising a connection unit that connects the reel holding unit to the feeder body.   The connecting means connects the reel holding unit to the feeder body so that at least the center of gravity of the reel holding unit and the reel held by the reel holding unit is relatively movable in the width direction of the feeder body. 3. The feeder according to claim 2, wherein: The connecting means,
A connecting member extending vertically,
Both ends of the connecting member are connected to the feeder main body and the reel holding portion so as to be rotatable around each of two rotating axes parallel to the front-rear direction and vertically separated from each other. 4. A feeder as claimed in claim 3, comprising two hinge means.   The feeder main body has a longitudinal shape that extends long in a direction parallel to the front-rear direction, and the reel holding portion hangs from an intermediate portion of the longitudinal shape of the feeder main body in the longitudinal direction. The main body portion has an attached portion attached to the attaching portion on one side of the intermediate portion on which the reel holding portion hangs, but has no attached portion on the other side, and the component supply portion is provided on the opposite side. The feeder according to claim 1, wherein   The feeder according to claim 1, wherein the reel holding unit holds the reel in a state where the entire reel overlaps the feeder main body in the width direction.   The feeder according to any one of claims 1 to 6, wherein the reel holding unit holds the reel in a state where a half or more of the reel overlaps the feeder body in the front-rear direction. A circuit component supply device comprising a plurality of feeders according to claim 1,
A substrate supporting device that supports a circuit substrate on which circuit components supplied from each of the plurality of feeders of the circuit component supply device are to be mounted,
A circuit component mounting device that receives a circuit component from each of the plurality of feeders and mounts the circuit component on a circuit substrate supported by the supporting device, and wherein the reel holding unit moves the reel from the substrate supporting device. A circuit component mounting system that holds in a lower position.   A circuit board supporting member that supports the circuit board, and a circuit board supporting member moving device that moves the circuit board supporting member to an arbitrary position in a plane perpendicular to the pivot axis; And the feeder main body is provided at a position higher than the substrate support device, and the circuit base material supported by the substrate support device at the time of mounting circuit components is moved between the feeder main body and the reel holding portion. The circuit component mounting system according to claim 8, wherein the circuit component mounting system can be entered.

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