JPH085454B2 - Transfer device for small parts - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer device for small parts such as IC chips, which is suitable for transferring small parts such as IC chips from a conveying means to a recess for mounting parts on a tape.

[0002]

2. Description of the Related Art Conventionally, as a method for managing small components such as IC chips, small components of the same type are mounted in a plurality of component mounting recesses of a component mounting tape formed in a bag shape. There is known a method of storing a plurality of small components of the same type in the component mounting tape and managing the same. Various mounters have been proposed for mounting the small parts in the component mounting recesses, for example, a conveyor such as a belt conveyor for conveying the small parts in parallel with the component mounting tape, and a conveyor. A transfer device that sequentially transfers and mounts the small components conveyed by the means into a plurality of component mounting recesses formed on the component mounting tape, and a transfer device that mounts the small components on the surface of the component mounting tape. The one provided with a welding means for welding the heat-welded film is used.

The transfer device includes holding means capable of sucking and holding small components, horizontal moving means for moving the holding means over the component mounting tape and the conveying means, and
Vertical moving means for moving the holding means in the vertical direction, the holding means is raised while the small component conveyed by the conveying means is held by the holding means, and then the holding means is moved above the component mounting recess. In the horizontal direction, and then the holding means is lowered to transfer and mount the small component held by the holding means in the component mounting concave portion, and the holding means is reversely mounted. The new small parts conveyed by the conveying means are held by the holding means, and this operation is repeated to sequentially transfer the small parts conveyed by the conveying means to the component mounting recesses. Those configured to be mounted are widely adopted.

[0004]

The transfer device requires two moving means for moving the holding means in the vertical and horizontal directions, which complicates the structure of the transfer device and increases the manufacturing cost thereof. However, there is a problem that the movement of the holding means needs to be temporarily stopped when the moving direction of the holding means is switched, and the cycle time for transfer is lengthened accordingly, resulting in a decrease in work efficiency. An object of the present invention is to provide a transfer device for small parts or the like that can be manufactured at low cost and that can improve the work efficiency of transfer work.

[0005]

According to a first aspect of the present invention, there is provided a transfer device for small parts and the like, which comprises an operating arm connected to an operating shaft of a rotating means and rotated by a predetermined angle, and a support parallel to the operating arm. A driven arm rotatably supported on the shaft and arranged in parallel with the operating arm, a restriction means for restricting a rotation range of the driven arm to a range smaller than the predetermined angle, and an equal distance from the operation shaft and the support shaft. The driven arm is connected to both arms at a distant position, is rotatable about an axis parallel to the operation axis with respect to the operation arm, and is immovably connected in the axial direction at least at a position for transferring small parts and the like. Is provided with a shaft rod that is rotatable about an axis parallel to the support shaft and is movably connected in the axial direction, and holding means that is supported by the shaft rod and that is capable of sucking and holding small parts and the like. It is a thing. Here, as in claim 2, the rotation angle of the driven arm may be regulated to 180 ° by the regulation means.

[0006]

In the apparatus for transferring small parts and the like according to the first aspect, the operating arm is rotated by the rotating means while the small parts and the like conveyed by the conveyor are suction-held by the holding means. , The driven arm is rotated in conjunction with the operating arm, and the holding means moves in parallel while drawing a circular arc together with the shaft rod connected to both arms, and the small parts sucked and held by the holding means move to tape or the like. Transferred to a position above the mounting site. Then, the rotation of the driven arm is regulated by the regulation means, and the rotation of the actuating arm after the rotation of the driven arm is regulated causes the axial rod to move in the axial direction and is adsorbed and held by the holding means. Etc. are transferred to a transfer site such as a component mounting recess of the tape. Here, in the present invention, since the rotation angle of the driven arm is regulated to 180 ° by the regulation means, the tape or the like is arranged at the same height position as the conveyance surface of the conveyance means such as the conveyor, and the conveyance surface is Small parts or the like are transferred to a transfer site such as a component mounting recess that is one step lower.

[0007]

The details of the present invention are further illustrated by the illustrated embodiments. This embodiment is a case where the present invention is applied to a transfer device of a component mounting device on a tape. Figure 1
FIG. 1 is an overall external view of a component mounting device on a tape, in which 1 is a mounting tape, 2 is a guide rail for guiding the mounting tape 1, and a guide groove 3 is provided at its upper end. There is. Along the way of the guide rail 2, a belt conveyor for feeding IC chips and other electronic parts and small parts a to the side of the guide rail 2, and other conveying means 4
Is set, and a transfer device for transferring the mounted product, which is the small component a on the conveying means 4, to the mounting tape 1 is shown as 5. After mounting, a detection device 6 for inspecting mounting failure and a sealing tape for sealing the surface of the mounting tape 1 after mounting are shown as 7 above. Again 8
Is a feeding unit 8 such as a pin roller for feeding such a mounting tape 1 from the right side to the left side in the drawing.

As shown in FIGS. 1 and 2, the mounting tape 1 in the component mounting apparatus for such a tape is as follows.
It is made of a synthetic resin film, especially a thermoplastic film, and the central part thereof has an IC chip as the mounted product,
A component mounting recess 9 for accommodating electronic components and other small components a is provided, and a feed hole 10 for transporting the mounting tape 1 is provided on its side, that is, on the right side in FIG.
Is provided. The recesses 9 and the feed holes 10 are provided at a constant pitch, and the mount a is mounted in the recesses 9 by the transfer device 5 described later. As shown in FIG. 2, the mounting tape 1 is guided on the guide rails 2,
The width (L) from the side edge to the center of the feed hole 10 is usually
Although the component mounting recesses 9 are formed with a constant width, various mounting tapes 1 having recesses 9 of different sizes are used to accommodate various sizes of components. Therefore, when the tape having the component mounting recesses 9 of different sizes corresponding to the components of different sizes is used, the guide rails 2 for guiding each tape 1 are used.
It is necessary to adjust the width.

Next, a guide rail for guiding such a mounting tape 1 is shown as 2 in the drawing. FIG. 2 shows a front view in a tape guiding state, and a guide groove 3 for receiving the mounting tape 1 as described above is provided inside the upper end of the guide rail 2. The mounting tape 1 is received in the guide groove 3,
The recess 9 of the mounting tape 1 is placed in the groove, and the locking pieces 11 on both sides of the tape are placed on the receiving surfaces on both sides of the groove 3. How to guide the mounting tape 1 with the guide groove 3 at the upper end of the guide rail 2 is as shown in FIG.
It is guided by 12 and received in the guide groove 3 between the upper ends of the guide rails 2 and moves leftward in the drawing. At this time, when the width of the mounting tape 1 changes, the width of the guide rail 2 must also be changed. The width of the guide rail 2 is set by the guide rail width adjusting means 13.

Various kinds of guide rail width adjusting means 13 may be considered. At least one of the pair of guide rails 2 arranged side by side moves in a direction in which one or both of the guide rails 2 expands and contracts, whereby a guide groove at the upper end is formed. Various types can be adopted as long as the width can be adjusted. For example, a method of setting both guide rails 2 on a transfer rail (not shown), and adjusting by sliding the upper surface,
Alternatively, although a method of adjusting the guide rail width by inserting an unillustrated shaft body into the guide rail 2 and sliding the guide rail 2 along the shaft body, etc., in the embodiment of the present invention, Each guide rail 2 is intended to be moved by using two screw shafts as shown in FIG.

That is, the guide groove width adjusting means 13 of the guide rail 2 has a width adjusting shaft 14 penetrating at two left and right positions in the figure which are separated from each other by the pair of guide rails 2 arranged in parallel. The screw-shaped 14a relationship provided for the guide rail 2 and the screw-shaped 14b relationship provided for the other guide rail 2 are set to be reverse screw relationships with each other, and one width adjusting shaft 14
Is used in association with the rotation transmitting means 15 for transmitting the rotation of the other width adjusting shaft 14 to the rotation of the other width adjusting shaft 14, and by rotating the one width adjusting shaft 14, the other width adjusting shaft 14 is also formed. By rotating the guide rails 2, the width of the pair of guide rails 2 arranged side by side can be increased or decreased. The width adjusting shaft 14 in the figure is a bearing 16 fixed to the guide rail 2 for each guide rail 2.
The bearings 16, 16 and the width adjusting shaft
14 and 14 are screwed to each other. Then, one end of the width adjusting shaft 14 is exposed on the front side of the guide rail 2, and in the case of manual operation, a rotating handle 17 as shown in the figure.
A gear 18 is provided at one end of the exposed screw shaft and the other end of the exposed screw shaft on the other side, and a chain, a belt or the like serving as a rotation transmission means 15 is stretched between the gears 18, 18. As shown in the figure, if the handle 17 of one width adjustment shaft 14 is rotated, the rotation is also transmitted to the width adjustment shaft 14 on the other side, and both shafts rotate synchronously while the guides on the front side in the figure are rotated. The guide rail 2 on the back side is expanded or contracted with respect to the rail 2. Therefore, by this operation, the width of the guide groove 3 located at the upper end of the guide rail 2 can be set corresponding to the width of various mounting tapes 1. At this time, when the tape guiding roller 12 on the front side is integrated with the tape guiding roller 12 on the back side located at the right end in the figure, naturally the expansion / contraction operation of the guide rail 2 is restricted. Therefore, the rollers 12 and 12 are rotatably attached to the guide rails 2 and 2 independently of each other by shaft bodies separated from each other as shown in the drawing. In addition, 19 and 19 located on the side of the width adjusting shaft 14 of the guide rail 2 arranged opposite to each other are two width adjusting shafts 1.
When expanding and contracting the guide rails 2 and 2 with 4 and 14, they are guide shafts for guiding so that they can move while maintaining parallel, and two guide shafts are provided on each side. One guide shaft 19 is related to one guide rail 2 via a guide bush 20, and the other guide shaft 19 is related to the other guide rail 2 via the other guide bush 20. When moving, the expansion / contraction operation is performed while being guided by the corresponding guide shafts 19. In other words, in order to expand or contract the width of the pair of guide rails 2 and 2 arranged side by side having such a configuration, that is, the width of the guide groove 3,
Simply rotate the handle 17 exposed on the outside,
The two width adjusting shafts 14 and 14 rotate, and the guide rails 2 and 2 associated with each other in the relationship of the reverse screw make expansion and contraction movements with each other, and the guide shafts 19 ... The expansion and contraction are performed while keeping the guide rails 2 and 2 parallel to each other.

Incidentally, 8 in the figure provided on the rear guide rail 2
Is a feed portion by a pin roller and is rotatably provided on the inner surfaces of the upper portions of the other guide rails 2 and 2.
It is related to a stepping motor or the like, and the tip of the pin roller 8 is provided in a state of slightly protruding from the surface of the guide rail 2, and the feed hole 10 of the mounting tape 1 running on the surface of the guide groove 3 of the guide rail 2 is provided. The mounting tape 1 is moved from the right side to the left side in FIG. Further, reference numeral 21 in the drawing is a pressing roller which is located on the upper surface of the pin roller 8 and holds the mounting tape 1 so as not to escape upward, and the mounting tape 1 sent to the left in the drawing is It is guided by the rollers 22 at the end of the guide rail 2 and is wound up in a case (not shown).

Next, regarding the relationship between the guide rails 2 and 2 and the mounting tape 1, the mounting tape 1 is I
A transfer device for transferring the C chip and the small parts a such as electronic parts is shown as 5 in the drawing. In this transfer device 5, at least one or more of which the base end is pivotally supported by a rotary shaft 23, the vertical end of which is vertically movably held at the front end, and whose rotation is regulated so that it can rotate 180 °. Driven arm 24;
The arm 24 is held so as to be vertically movable, a component holding portion 25 (which corresponds to a holding means) 25 such as a suction cup is provided at the tip, and a picking rod 26 of the mounting component a is arranged to intersect with the arm 24. ; Arranged in parallel with the driven arm 24, pivotally supported by an operating shaft 27 associated with a rotating means, and a tip picking rod.
On the 26 side, two upper and lower guide pieces 28, 28 are provided to project, and a projecting shaft 29 provided on the picking rod 26 is held slidably in the length direction of the guide piece 28; and It will be.

That is, in the transfer device indicated by the reference numeral 5, two driven arms 24 are vertically arranged, and a chain, a belt, etc. are arranged so that their base ends penetrate into the main body and rotate in synchronization with each other. A shaft holding rod 32 is supported by a rotary shaft connected by the above, and at the tip end, a shaft rod arranged vertically can be moved up and down, for example, a holding portion 32 having a guide hole 31 is provided at the tip end so as to project therefrom.
The shaft rod 26 is vertically movably inserted therein, and the driven arm 24 is rotated by 180 ° in the horizontal direction, for example, by restricting the rotation angle of the rotary shaft 23, or As in the example, stoppers (this corresponds to the restricting means) 33, 33 are provided at positions on both sides of the arm 24 rotated by 180 °. In other words, the two driven arms 24, 24 in the example
A 180 ° semicircular link movement is possible while holding the vertical picking rod 26 on the holding portion 32 at the tip position. A picking rod 26 is shown in the figure, and the picking rod 26 has the two driven arms 24, 24.
A shaft rod provided at the tip end so as to be vertically movable, and a holding rod 35 is hung from the shaft rod in parallel via connecting pieces 34, 34, and this rod body 35 is provided.
A component holding portion 25 such as a suction cup associated with the suction means is provided at the tip of the, and a spring member 36 is interposed between the two connecting pieces 34. Then, the middle of the picking rod 26 connected by the two driven arms 24, 24, that is, the two upper and lower driven arms.
An operating arm 30 is provided between 24 and 24. The actuating arm 30 has a base end side similar to the driven arms 24, 24.
Actuating shaft related to the motor etc. located inside the main body
At the same time as shown in FIG. 5, the driven arm 24 is rotated by 180 ° between the two stoppers 33, 33 and then the actuating arm 30 is slightly rotated while holding the picking rod 26 mentioned above. In order to allow the downward movement of the picking rod 26 whose movement is restricted in the left-right direction in the drawing, two guide pieces 28, 28 are provided on the tip of the operating arm 30 on the picking rod 26 side. The protruding shaft 29 provided on the picking rod 26 is held so as to be movable in the length direction of the guide piece 28. In other words, the driven arm 24 is capable of rotating by 180 ° and stops rotating at that stage, whereas the operating arm 30 rotates 180 ° by the rotation of the operating shaft 27.
Although the rotation of the working arm 30 is restricted by the driven arm 24, the rotation of the working arm 30 is restricted because the position of the picking rod 26 is fixed by the driven arm 24. Since the projecting shaft 29 is guided by the two guide pieces 28, 28 so as to be slidable toward the tip end side of the operating arm 30, the lower end of the picking rod 26, that is, the picking rod 26 is provided side by side with the connecting piece 34. Holding rod 35
25 is lowered from the solid line state in FIG. 5 to the imaginary line state. That is, as shown in FIGS. 1 and 4, the small parts supplied to the side of the device are rotated by 180 ° of the transfer device, and on the other hand, the part holding portion 25 of the picking rod 26 is provided on the upper surface of the part. Located on the other hand, and on the other hand the recess 9 of the mounting tape 1
It will be located above. Then, by rotating the actuating arm 30 by 180 ° and further rotating it by a certain angle, the picking rod 26 further descends to hold the component,
Alternatively, the component is mounted. This movement is the shortest distance between picking of the mounted article and mounting movement on the tape.

Next, the parts mounted on the mounting tape 1 pass below the cover plate indicated by 6 in the drawing.
As shown in FIG. 4, when the mounting component a is not accurately accommodated, the projecting component corners come into contact with the lid plate and push the lid plate 6 upward. By the load of this lid plate 6,
When this part is housed in the housing recess 9, naturally,
Although there is no problem, when the cover plate 6 is lifted above a certain position, an alarm for indicating a defective mounting state or a stop of the feeding device is made to inform the defective mounting state.
In a normal mounting state, naturally, the surface of the mounting tape 1 is covered with the sealing tape 7 which passes under the sensor and is then supplied from above. The seal tape 7 is continuously or intermittently adhered by the heat sealer 37 in the covered state, and the pin roller 8 is adhered in this adhered state.
Is sent to the left of the device.

As described above, in the case where the width of the tape 1 is variously changed in the tape component mounting apparatus, 2
When one of the width adjusting shafts 14 is rotated, the other shaft is also rotated in synchronization with the guide rails 2 and 2 corresponding to the width of the mounting tape 1, that is, the guide groove 3 located at the upper end thereof. It is possible to accommodate and guide various tapes by adjusting the width.

[0017]

According to the transfer device for small parts of the first aspect of the invention, since the small parts are transferred by utilizing the arc motion of the operating arm and the driven arm, the structure of the transfer device can be greatly simplified. In addition, the transfer time can be shortened without changing the transfer direction, and after the rotation of the driven arm is restricted, the actuating arm moves the shaft rod in the axial direction to linearly move the holding means. Can be moved,
Even in the recessed position, it is possible to transfer the small parts and the like without dropping the small parts.
According to the second aspect, it is possible to transfer the small parts or the like to the tape or the like arranged at the same height position as the conveying surface of the conveying means such as a conveyor, so that the conveying means and the tape are laid out. It is possible to arrange them with good performance.

[Brief description of drawings]

FIG. 1 is a perspective view for explaining main parts of a device for mounting a component on a tape according to the present invention.

FIG. 2 is a partial cross-sectional explanatory view showing a state in which a mounting tape is placed on a guide rail.

FIG. 3 is an explanatory plan view in section showing a state in which width adjusting means for the guide rail is provided.

FIG. 4 is an explanatory diagram for explaining a mounting state by a mounting machine, as viewed from another angle in FIG. 1.

FIG. 5 is an explanatory diagram showing vertical movement after 180 ° rotation by the mounting machine.

[Explanation of symbols]

 1 Mounting Tape 2 Guide Rail 3 Guide Groove 4 Transfer Device 5 Transfer Device 6 Detecting Device 7 Sealing Tape 8 Feeding Part 9 Recess 10 Feeding Hole 11 Locking Piece 12 Roller 13 Guide Rail Width Adjusting Means 14 Width Adjusting Shaft 14a Screw Article 14b Thread 15 Rotation transmitting means 16 Bearing 17 Rotation handle 18 Gear 19 Guide shaft 20 Guide bush 21 Pressing roller 22 Roller 23 Rotating shaft 24 Driven arm 25 Component holder 26 Picking rod 27 Actuating shaft 28 Guide piece 29 Projecting shaft 30 Actuating arm 31 Guide hole 32 Holding part 33 Stopper 34 Connecting piece 35 Holding rod 36 Spring member 37 Heat sealer

Claims (2)

[Claims] 1. An operating arm which is connected to an operating shaft of a rotating means and is rotated by a predetermined angle, and a driven arm which is rotatably supported by a support shaft parallel to the operating arm and arranged parallel to the operating arm. Restricting means for restricting the range of rotation of the driven arm to a range smaller than the predetermined angle, and connecting to both arms at a position equidistant from the operating shaft and the support shaft, and the operating shaft for the operating arm. It is rotatable about an axis parallel to the axis and is immovably connected in the axial direction at least at the position where small parts are transferred. The driven arm is rotatable about the axis parallel to the spindle. A transfer device for small parts and the like, comprising: an axial rod that is movably connected in a direction; and a holding unit that is supported by the axial rod and that can adsorb and hold small parts and the like. 2. The transfer device for small parts or the like according to claim 1, wherein the rotation angle of the driven arm is regulated to 180 ° by the regulation means.