JP3769160B2 - Feeding feeder - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a feeding feeder configured to take out a chip component such as an IC from a tray of a tray storage unit and feed the chip component to a mounting apparatus by a component conveying unit.
[0002]
[Prior art]
Conventionally, a mounting device in which a chip component (electronic component) supplied by a component supply device is sucked by a mounting head having a suction nozzle, and this head is moved onto a printed circuit board to mount the chip component. Generally known. The mounting device is usually provided with a relatively compact component supply device such as a tape feeder. However, some chip parts having a relatively large size or special shape may be difficult to store in a tape feeder or the like.
[0003]
Therefore, as a component supply device used in such a case, for example, as disclosed in Japanese Patent Application Laid-Open No. 64-30298, a tray storage unit that stores a plurality of upper and lower trays in which chip components are arranged is freely detachable. The component conveying means provided from a predetermined position on the side of the tray storage unit to the component adsorption position of the mounting apparatus and the chip component on the tray pulled out from the tray storage unit are adsorbed to 2. Description of the Related Art There is known a feeder that includes a component transfer head unit that is transferred to a conveyance unit.
[0004]
[Problems to be solved by the invention]
The conventional feeding feeder as described above is not mounted sufficiently compactly with respect to the mounting device, such as the tray storage part, the part transfer head part, and the part transporting means, and the parts supply space is wide. Improvement of the efficiency of parts feeding to the equipment has been hindered.
[0005]
In view of such circumstances, the present invention provides a feeding feeder that can improve the efficiency of feeding components to a mounting device by laying out compactly with respect to the mounting device so that the component supply space does not increase. The purpose is to do.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is a feeding feeder that is disposed adjacent to both mounting devices between two mounting devices that are installed on the substrate transport line at a predetermined interval. In addition, a tray storage unit in which a plurality of upper and lower trays in which chip parts are arranged can be pulled out and stored, a component transfer line disposed adjacent to and parallel to the base transfer line between both mounting devices, and mounting It is arranged close to the parts transport line between devices and can move in a direction parallel to and perpendicular to the parts transport line, and transports the parts taken out from the tray storage section onto the parts transport line. A component transfer head unit that is provided on the component transfer line, is driven by a driving means, moves on the component transfer line, and transfers a component received from the component transfer head unit to the mounting apparatus. Means and a tray pulling device for pulling out a tray on which chip components are arranged from the tray storage portion to a position corresponding to the component transfer head unit, and between the two mounting devices, On one side of the line and to the empty space that is the area on the board transfer line side from the line connecting the side ends of both mounting devices in the direction orthogonal to the board transfer line, onto the component transfer line and the transfer line The arrangement of the transfer line, the component transfer head unit and the component transfer means is set so that the head of the component transfer head unit when the components are transferred and the component transfer means are positioned, and the tray A storage portion is disposed adjacent to the component transfer head unit.
[0007]
According to this configuration, the tray storage unit, the component conveying line, the component transfer head unit, the component conveying means, and the like are rationally laid out in the vicinity of the mounting apparatus, which is advantageous for improving the component feeding efficiency.
[0008]
In addition, it is possible to arrange the component conveying lines in a plurality of rows and provide the component conveying means in each row of the component conveying lines.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
[0010]
FIG. 1 schematically shows a part including a feeding feeder and a part of a mounting apparatus according to an embodiment of the present invention. In this figure, 1 and 2 are mounting devices, 3 is a substrate transport line made up of a conveyor and the like, and 4 is a feeder for chip components. Since the mounting apparatuses 1 and 2 are conventionally known, a specific structure is not shown, but the printed board sent by the board transfer line 3 is held at a predetermined mounting work position, while a suction nozzle is installed. After the chip component is adsorbed by the mounting head, the chip head is mounted on the printed board by moving the mounting head onto the printed board. Further, a component supply unit such as a tape feeder is also provided inside the mounting apparatuses 1 and 2, and small chip components and the like are supplied from the internal component supply unit.
[0011]
In the figure, the mounting devices 1 and 2 are provided in two places at an appropriate interval in the direction of the substrate transfer line 3 so that, for example, a chip component is mounted on a part of the printed circuit board by one mounting device 1. Thus, the two mounting devices can be properly used, for example, the printed board is moved to the other mounting device 2 and the chip parts are mounted on the remaining portions. Note that the usage of both the mounting devices 1 and 2 is not limited to this example. For example, the mounting devices 1 and 2 may separately mount chip components on the printed circuit board.
[0012]
The feeding feeder 4 is installed between the mounting apparatuses 1 and 2 by using a free space on the side of the board transfer line 3.
[0013]
As shown in FIG. 2, the feeding feeder 4 includes a tray storage portion 5, a component transfer head unit 6, a plurality of rows of component conveying lines 7 and 8, and the component conveying lines 7 and 8. The component conveyance means 9 and 10 are provided, and the component conveyance lines 7 and 8 are disposed adjacent to and parallel to the substrate conveyance line 3.
[0014]
The tray storage unit 5 is arranged at a position spaced apart from the component conveying lines 7 and 8 so that the front surface faces the component conveying lines 7 and 8 side. In this tray storage section 5, trays 11 on which chip parts are arranged are stored in multiple rows (see FIG. 3). Each tray 11 can be pulled forward with respect to the tray storage portion 5, and a gripped portion 12 that is gripped by a clamp described later protrudes from the front surface thereof (see FIG. 4). A tray pulling device 15 for pulling out a desired tray 11 is provided in front of the tray storage unit 5.
[0015]
As shown in FIG. 2 and FIG. 3, the tray drawer device 15 includes a support frame 16 for supporting both sides of the tray 11, a tray drawer clamp 17, and the clamp 17 in the X direction ( A guide 18 that is movably supported in a direction perpendicular to the component conveying lines 7 and 8 and a mechanism for moving the clamp 17 are provided. The clamp 17 has a pair of hook-shaped gripping portions 17a and 17b that can be moved close to and away from each other so that the gripped portion 12 can be gripped from both sides, and the gripping portion 17a is driven by driving means such as a cylinder. , 17b are actuated. The mechanism for moving the clamp 17 includes a feed belt 19 disposed along the guide 18 and a motor 20 for operating the feed belt 19. When the clamp 17 is coupled to the feed belt 19, the motor The clamp 17 moves in the X direction according to the operation of the feed belt 19 by 20.
[0016]
Further, the tray pulling device 15 is attached to a column 22 provided on the main body frame 21 of the feeding feeder 4 so as to be movable up and down, and a ball screw shaft 23 extending vertically in parallel with the column 22 and a belt 24. A servo motor 25 that is rotated via the nut is provided on the main body frame 21, while a nut portion (not shown) that is screwed to the ball screw shaft 23 is provided on the tray pulling device 15, thereby the servo motor 25. As the ball screw shaft 23 is driven and rotated, the tray pulling device 15 is moved up and down.
[0017]
The component transfer head unit 6 is provided between the tray storage unit 5 and the component transport lines 7 and 8 at a fixed height position above the ascending end position of the tray drawing device 15 in the X direction. It is possible to move in the Y direction (direction parallel to the component conveying lines 7 and 8). That is, the head unit support member 30 extending in the Y direction is supported by the guide rail 31 so as to be movable in the X direction and is coupled to the X direction feed belt 32, and the head unit 6 is connected to the head unit support member 30 in the Y direction. It is supported so as to be movable, and is coupled to a Y-direction feed belt 33 provided on the head unit support member 30. Both the feed belts 31, 33 are driven by an X-axis servo motor 34 and a Y-axis servo motor 35, respectively. It has come to be.
[0018]
The head unit 6 is provided with a component suction head 36, and in the figure, two heads 36 are provided in parallel. Each head 36 has a nozzle 37 at its lower end, and can be raised and lowered by a fixed stroke by an air cylinder 38 (see FIG. 5). Further, the head 36 is connected to a negative pressure supply source via a switching valve outside the figure.
[0019]
The component conveying lines 7 and 8 are arranged in two rows in parallel with each other, and are each formed of a monorail guide rail. The substantially intermediate position of both the mounting devices 1 and 2 is set as a component feeding position, and both sides from the component feeding position. It extends in a straight line, and is formed so as to reach both mounting apparatuses 1 and 2. The component conveying means 9 and 10 provided in each of the component conveying lines 7 and 8 integrally have a component supporting portion 41 and an attaching portion 42 to the component conveying lines 7 and 8, respectively. The transfer lines 7 and 8 are movably engaged. In the example shown in the figure, the component support portion 41 can support five chip components simultaneously.
[0020]
Further, each of the component conveying lines 7 and 8 includes a feed belt 43 disposed along the conveying lines 7 and 8 as a mechanism (driving unit) for moving the component conveying units 9 and 10, and the feed belt 43. A servo motor 44 for driving is provided, and component conveying means 9 and 10 are coupled to the feed belt 43 (see FIG. 6).
[0021]
The operation of the feeding feeder of this embodiment as described above will be described next.
[0022]
When supplying a specific chip component among various chip components arranged on the tray 11 in the tray storage unit 5 to the mounting apparatuses 1 and 2, the tray 11 in which the chip component is placed is first selected. Accordingly, the servo motor 25 is driven to adjust the height position of the tray drawing device 15 so as to correspond to the selected tray 11. Then, as shown in FIG. 4, the clamp 17 is operated and the tray 11 is pulled out, that is, the clamp 17 is operated toward the tray 11 as shown by the arrow A in FIG. When the front surface of the tray 11 is reached, the pair of gripping portions 17a and 17b are actuated in the direction of approaching each other as indicated by the arrow b in FIG. 17 is actuated in the pull-out direction as indicated by arrow C in FIG.
[0023]
After the tray is withdrawn, the tray withdrawing device 15 is raised to the substantially raised end position. In this state, the head unit 6 is driven by the servo motors 34 and 35 to move above the tray 11, and then the head as shown in FIG. 36 is lifted and lowered by a fixed stroke, and the chip component 50 on the tray 11 is sucked. In this case, the height from the upper surface of the tray 11 to the upper surface of the chip component 50 varies depending on the type of the chip component 50, but the upper surface of the chip component 50 is lowered by the head by finely adjusting the height position of the tray drawing device 15. A constant level H corresponding to the position of the nozzle 37 at the time is desirable in order to perform an appropriate suction operation. Further, since the head unit 6 is provided with the two heads 36, two chip components can be adsorbed by operating each of them.
[0024]
After the component adsorption, the head unit 6 moves onto the component conveyance lines 7 and 8. Then, the head 36 is lowered and the negative pressure supplied to the head 36 is cut off on the component support portion 41 of the component conveying means 9 and 10 at the component delivery position of the component conveying lines 7 and 8. The component is moved to the component support portion 41.
[0025]
By repeating the operations of the tray drawing device 15 and the head unit 6 as described above, the specified number of chip components within the range of the number of components that can be supported on the component support portion 41 (5 in the illustrated example) are transferred. The chip component is transferred to the other component conveying means 10 after being transferred to the one component conveying means 9 as necessary.
[0026]
When the transfer of the component onto the component support portion 41 is completed, as shown in FIG. 6, the feed belt 43 is driven by the servo motor 44, so that the component conveying means 9 or 10 becomes the designated mounting apparatus. Move towards 1 or 2. When a predetermined component supply position in the mounting apparatus is reached, the component conveying means 9 or 10 is stopped, and the chip component on the component support portion 41 is sucked by the mounting head in the mounting apparatus. When this component suction operation is completed, the component conveying means 9 or 10 returns to the original component delivery position.
[0027]
Chip components are fed in this way. In particular, two rows of component conveying lines 7 and 8 are arranged, and both component conveying lines 7 and 8 are formed so as to extend over two mounting apparatuses 1 and 2. In addition, since the component conveying means 9 and 10 are provided so as to be movable in both directions, chip components can be obtained by rationally using the component conveying lines 7 and 8 and the component conveying means 9 and 10 properly. The feeding efficiency is improved.
[0028]
In order to explain this action, FIGS. 7A and 7B show specific examples of the relationship between the operation of both mounting apparatuses and the operation of the feeding feeder 4. In this figure, among the operation times of the mounting apparatuses 1 and 2, A is the time required for the movement to the suction point and the suction operation when picking up the chip component from the component supply unit provided in the mounting apparatus itself. , B is the time required for component position correction and movement to the mounting point, C is the time required for mounting operation, D is the movement to the suction point when sucking the chip component sent from the feeding feeder 4 and the suction operation It takes time to complete. Of the operation times of the feeding feeder 4, E is the time required for component transportation to the mounting device and the component supply operation in the mounting device, and F is the component feeding preparation operation (tray drawer device 15, Operation of the component transfer head unit 6 or the like).
[0029]
In FIG. 7A, the operation times of the above E and F in the feeding feeder 4 are substantially constant, and each operation is performed periodically. If the control timing and time distribution are adjusted so that the other times A, B, and C correspond to the time F of the preparatory operation in the feeding feeder 4, the optimum cycle time can be obtained as a whole. It is done. Further, for example, component feeding to one mounting device 1 by the feeding feeder 4 and component feeding to the other mounting device 2 are sequentially performed, and the relationship between the mutual control timings of both the mounting devices 1 and 2 is accordingly determined. If one is adjusted, component feeding to both the mounting apparatuses 1 and 2 is efficiently performed by one feeding feeder 4.
[0030]
Moreover, although parts feeding by both parts conveyance lines may be performed simultaneously as shown in FIG. 7A, either one of both parts conveyance lines 7, 8 as shown in FIG. 7B. A part of the preparatory operation (time F) with respect to the other is performed during the component conveyance and component supply operation (time E) in FIG. 1, so that the operations of the respective conveyance lines 7 and 8 are shifted in time. You can also
[0031]
In the above-described embodiment, the component conveying lines are two rows, but three or more rows may be provided. Moreover, the mounting apparatus may be disposed at three or more locations, and a component conveyance line may be provided over these. In addition, the specific structure of each part may be changed in design without departing from the gist of the present invention.
[0032]
【The invention's effect】
As described above, the feeding feeder according to the present invention effectively utilizes the empty space on the side of the substrate transfer line between the two mounting apparatuses, the tray storage unit, the component transfer line, the component transfer head unit, Since the component conveying means and the tray drawing device are arranged so that the component supply space is not widened, the component feeding efficiency with respect to the mounting device can be improved.
[Brief description of the drawings]
FIG. 1 is a plan view showing a feeding feeder according to an embodiment of the present invention together with a part of a mounting apparatus.
FIG. 2 is an enlarged plan view of the feeding feeder.
FIG. 3 is a front view of a tray storage unit and a tray drawer device.
FIGS. 4A, 4B, and 4C are operation explanatory views sequentially illustrating a tray drawing operation. FIGS.
FIG. 5 is an operation explanatory view showing an operation of sucking chip components on a tray by a head.
FIG. 6 is an operation explanatory diagram illustrating a transport operation by a component transport unit.
7A and 7B are time charts showing a temporal relationship between the operation of the feeding feeder and the operation of each mounting apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, 2 Mounting apparatus 4 Feeding feeder 5 Tray storage part 7, 8 Component conveyance line 9, 10 Component conveyance means

Claims (4)

A feeding feeder disposed adjacent to both mounting devices between two mounting devices installed at a predetermined interval on the substrate transfer line,
A tray storage section that stores a plurality of upper and lower trays in which chip parts are arranged so that it can be pulled out,
A component transfer line disposed adjacent to and parallel to the substrate transfer line between the mounting devices;
Between the mounting devices, it is arranged close to the component conveyance line and can move in a direction parallel to and perpendicular to the component conveyance line, and the component taken out from the tray storage unit is placed on the component conveyance line. A component transfer head unit to be transported;
A component conveying means that is provided in the component conveying line, is moved by the driving means and moves on the component conveying line, and conveys the component received from the component transfer head unit to the mounting device;
A tray drawing device for pulling out a tray in which chip components are arranged from the tray storage unit to a position corresponding to the component transfer head unit;
Between the two mounting devices, in one side of the substrate transport line and in the region on the substrate transport line side from the line connecting the side edges of both mounting devices in the direction orthogonal to the substrate transport line The transfer line and the component transfer so that the component transfer line, the head of the component transfer head unit when the component is transferred onto the transfer line, and the component transfer means are positioned in a certain empty space. The arrangement of the head unit for parts and the parts conveying means is set,
The feeder feeder, wherein the tray storage portion is disposed adjacent to the component transfer head unit. The parts conveying line is arranged in a plurality of rows,
The feeding feeder according to claim 1, wherein the component conveying means is provided in each row of the component conveying line. The component conveying line is arranged to connect the two mounting devices,
The feeder according to claim 1 or 2, wherein the component conveying means conveys a chip component to the two mounting devices. The feeding feeder according to any one of claims 1 to 3, wherein the component conveying means conveys a plurality of components received from the component transfer head unit to the mounting device at the same time.

Images