JPH09252194A - Tube feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately position a tube according to the type of chips by providing guide adjusters to adjust the width of guide plates symmetrically to the center axis of a chip sliding down passage. SOLUTION: Adjusting bolts have male threads 23a meshed with female threads 23a of support posts 22 and ring-like slits 23c at the heads 23b. Grip plates 24, 25 have C-shaped bases 24a, 25a and bars 24b, 25b vertically inserted near the center of the posts 22 to enter inside the slits 23c. When the heads 32b of the bolts 23 are clamped from a narrow angle between the grip plates 24, 25, the bars 24b, 25b move near to the posts 22, while the bases 24a, 25a pivoted to pins 26, 27 widen the angle between the plates 24, 25 to widen the remove between the plates 24, 25, thus adaptable to various types of chips and the center is aligned with that of the post 22. Thus, the tube can be accurately positioned.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tube feeder for feeding a chip by sliding the chip down from a tube.

[0002]

2. Description of the Related Art There are several types of feeders for feeding chips to a transfer head of an electronic component mounting apparatus, such as a tape feeder and a tray feeder.

Of these, the tube feeder is of a type in which a tube for storing chips is tilted forward and the chips are delivered from the tube to a chip transfer section via a chute section.

Now, the tube feeder uses a tunnel-shaped chute portion to slide down the chip.
The chute unit must be configured to be able to guide at least the lower part and both sides of the chip in the moving path of the chip.

[0005]

By the way, since the width dimension of the chip varies depending on the type of the chip, the width between the members for guiding both sides of the chute portion must be changed according to the type. However, in the conventional tube feeder, the dedicated chute portion is manufactured according to the type of chip, which causes a problem that not only the cost becomes high but also waste is large.

Therefore, an object of the present invention is to provide a tube feeder which can cope with a plurality of types of chips without waste.

[0007]

SUMMARY OF THE INVENTION A tube feeder of the present invention comprises a tube stocker for holding a tube for accommodating chips, a tube stocker which is continuous with the tube stocker and which is held in a forward tilted position, and slides the chips delivered from the tube. The chute part includes a chute part to be lowered and a chip transfer part provided at a lower part of the chute part, and the chute part is a lower pedestal for receiving the lower surface of the sliding chip, and a pair of guiding both side parts of the sliding chip. And a guide adjusting portion that opens and closes the guide plate symmetrically with respect to the central axis of the moving path of the tip that slides down.

[0008]

According to a first aspect of the present invention, there is provided a tube stocker for holding a tube for accommodating a chip, and a chute portion which is continuous with the tube stocker and which is held in a forward tilted position and slides down the chip delivered from the tube. And a chip transfer part provided in the lower part of the chute part, wherein the chute part underlies the lower surface of the sliding chip, and a pair of guide plates for guiding both side parts of the sliding chip. , The width of the tip has been changed due to the change of the type of the tip because it is configured with a guide adjustment part that adjusts the width of the guide plate symmetrically with respect to the center axis of the moving path of the tip that slides down. At this time, use the guide adjustment part to align the position of the guide plate with the width of the new tip. As a result, even if the type of chip is changed, it is possible to flexibly cope with the change of the chute unit.

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view of a tube feeder according to an embodiment of the present invention. In FIG. 1, reference numeral 1 is a base material of the tube feeder 2, and 3 is a stand portion standing on the base material 1. The chute part A in the tube feeder 2 is mainly composed of the tunnel body 4,
This tunnel body 4 is obliquely installed on the base portion 3 in a forward tilted posture. The chute portion A slides down the tip delivered from the tube 5. The guide adjusting portion C of the chute portion A will be described in detail later.

B is a tube stocker, of which 6
Is a long plate-like frame connected to the upper portion of the tunnel body 4, and tube holding portions 7 and 8 for positioning the upper end portion and the lower end portion of the tube 5 are provided at both ends thereof.
This tube 5 has a thin tubular shape, and the SOP is
Many chips are stored. Tube 5 is a stack of multiple tubes 5 in the forward tilted position, and is the empty bottom tube 5.
Are dropped from the frame 6 and collected in the receiving frame 9.

Further, D is a chip transfer section provided below the chute section A. Reference numeral 10 is a Y guide provided in the front portion of the base material 1, and 11 is a bracket that is movable in the Y direction on the base material 1 by a slider 12 that slidably engages with the Y guide 10. A block 13 is fixed to the tip of the bracket 11. Further, 14 is a cylinder that reciprocates the bracket 11 in the Y direction by its rod 15.

Reference numeral 16 is provided in the front portion of the base material 1 and is substantially L
A cam having a character-shaped profile surface, and 17 is a receiving material for receiving chips from the chute portion A. Here, a lower front portion of the receiving member 17 is rotatably supported by the block 13 by a shaft 18, and a cam follower 19 provided on a lower rear portion of the receiving member 17 is supported.
Is slidably engaged with the contour surface of the cam 16.
The receiving member 17 is pulled toward the block 13 by the spring force of the spring 20.

Therefore, with the rod 15 retracted,
In the positional relationship shown by the solid line in FIG. 1, the receiving member 17 receives the chip from the chute portion A, and then the rod 15 is projected to make the receiving member 17 in a horizontal posture as shown by the chain line in FIG. The receiving material 17 can supply chips to the transfer head 21.

Next, the structure of the tube holding portion 7 will be described with reference to FIGS.

In FIG. 2, reference numeral 22 denotes a column that is erected on the rear portion of the frame 6, the upper portion of the column 22 is sag, and a female screw portion 22a is formed at the center thereof as shown in FIG. 24 and 25 are, with respect to the center of the column 22,
These are a pair of sandwich plates that are symmetrically arranged and sandwich the left and right side surfaces of the tube 5. The base end portions 24a, 25a of the sandwich plates 24, 25 are bent in a U shape, and the base end portions 24a, 25a are pivotally supported by the pins 26, 25 provided on the support column 22. ing. Therefore, the sandwich plates 24 and 25 can be opened and closed in the direction of the arrow N1 according to the width of the tube 5 (which is changed depending on the type of chip).

Next, a mechanism for adjusting the opening angle of the sandwich plates 24 and 25 will be described. Reference numeral 23 is an adjusting bolt whose male screw portion 23a is screwed into the female screw portion 23a of the support column 22.
A ring-shaped slit 23c is formed on the head 23b of the adjusting bolt 23. And the sandwich plates 24, 2
Of the base end portions 24a and 25a having the U-shape of 5, the column 2
Bars 24b and 25b are vertically inserted near the center of 2, and the bars 24b and 25b are provided with slits 23.
It is inside c.

Therefore, as shown by the solid line in FIG. 3, when the opening angle of the sandwiching plates 24, 25 is narrow, as shown by the chain line in FIG. , 25b approach the column 22 side. On the other hand, the base end portions 24a, 25a of the sandwich plates 24, 25
Is pivotally supported on the column 22 by the pins 26 and 27, the opening angle of the sandwich plates 24 and 25 increases, and the sandwich plate 2
It is possible to widen the interval between 4, 25.

That is, when the width of the tube 5 is changed in accordance with the change in the type of chip, the head 23b is loosened to increase the opening angle of the sandwich plates 24 and 25, and a new tube 5 is sandwiched. Set between 25. And the head 23b
It is only necessary to reduce the opening angle of the sandwiching plates 24 and 25, and sandwich both sides of the new tube 5 with the sandwiching plates 24 and 25. Here, since the sandwich plates 24 and 25 are arranged to be symmetrical with respect to the center of the column 22 and to increase or decrease the opening angle by the same amount, the sandwich plates 24 and 25 can be set roughly even if the tube 5 is roughly set. After the sandwiching by 24 and 25 is completed, the center of the tube 5 always coincides with the center of the support column 22, and the tube 5 can be positioned easily and accurately.

Next, with reference to FIGS. 4 to 6, the guide adjusting portion C and the connecting elements will be described. FIG.
FIG. 5 is a vertical cross-sectional view of the vicinity of the guide adjusting portion according to the embodiment of the present invention, and FIG.

As shown in FIG. 5, inside the tunnel body 4, a lower pedestal 28 for receiving the lower surface of the chip P concentrically with the center M of the tunnel body 4 is provided. The lower receiving portion 28 has a shape that is considerably narrower than the width of the tunnel body 4, and as shown in FIG. 4, the tip P slides on the upper surface of the lower receiving base 28, and It is sent to the chip transfer section D. A plurality of lower pedestals 28 are provided at intervals, and are supported by a beam 29 that is laid across the tunnel body 4. The left and right side portions of the tip P are guided by guide surfaces 30a and 31a of a pair of guide plates 30 and 31 which are opened and closed concentrically with and parallel to the center M.

The lower portions of the guide plates 30 and 31 are bent at a right angle to the center M side, and a vertical pin 30 is provided at a position outside the center M of the bent portion by the same distance.
b and 31b are rotatably inserted. Further, the tip ends of links 39, 40 having shafts 37, 38 (FIG. 4) concentric with the center M as pivots are pivotally supported under the pins 30b, 31b.

Then, as shown in FIG.
A moving block 32 is provided below the inside of the so as to move in parallel to the moving direction of the tip P and concentrically with the center M, and the lower portions of the shafts 37 and 38 described above are fixed to the moving block 32. ing.

Further, a female screw portion 32a is provided so as to project downward on the lower portion of the moving block 32. In the lower part of the tunnel body 4, axially supporting portions 33 and 34 are provided so as to project downward at intervals. A screw shaft 35 is axially supported by the axially supporting portions 33 and 34 in parallel with the tunnel body 4, and a screw shaft 35 is provided. Is the internal thread 32
It is screwed with a.

Therefore, when the handle 36 attached to the screw shaft 35 is rotated, the moving block 32 is moved to the arrow N2.
Can be moved in the direction, so that the shaft 37,
38 can be moved by the same distance in the direction of arrow N2.

Here, as shown in FIG. 6A, the gap between the guide surfaces 30a and 31a is W1 in accordance with the width of the tip P so far, and the opening angle of the links 39 and 40 at this time is W1. It was assumed that it was θ1. Next, if the type of the chip P is changed and the width of the chip P is increased, the handle 36 is rotated and the shafts 37 and 38 are moved to the positions shown in FIG.
6 is moved from the position indicated by the chain line (same as in FIG. 6A) as indicated by arrow N3. As a result, the shafts 37 and 38 move to the positions indicated by the solid lines in FIG. 6B, the opening angles of the links 39 and 40 increase to θ2, and the spacing between the guide surfaces 30a and 31a also increases to W2.
It will increase to. Of course, in order to narrow the gap between the guide surfaces 30a and 31a, the handle 36 may be rotated in the opposite direction.

As described above, according to the tube feeder of this embodiment, even if the type of the chip P is changed, the chute portion A
It is not necessary to replace the above, and the gap between the guide surfaces 30a and 31a can be made appropriate by simply rotating the handle 36, and this can be easily dealt with. Similarly to the sandwich plates 24 and 25, even if the handle 36 is rotated and the shafts 37 and 38 are moved, the shafts 37 and 38 are always on the center M, and the centers of the guide surfaces 30a and 31a are the center M. Since it is on the top, the tip P can always slide down concentrically with the center M.

[0027]

The tube feeder of the present invention comprises a tube stocker for holding a tube for containing a chip, and a chute part which is continuous with the tube stocker and which is held in a forward tilted position and slides down the chip delivered from the tube. When,
And a chip transfer section provided at the bottom of the chute section,
The chute part is a pedestal for receiving the lower surface of the sliding tip, a pair of guide plates for guiding both sides of the sliding tip, and a symmetry with respect to the central axis of the moving path of the sliding tip. Since the guide adjusting unit for opening and closing the guide plate is provided, even if the chip type is changed, it is not necessary to replace the chute unit, and it is possible to easily and efficiently cope with the type change.

[Brief description of drawings]

FIG. 1 is a side view of a tube feeder according to an embodiment of the present invention.

FIG. 2 is a perspective view of a tube holding portion according to an embodiment of the present invention.

FIG. 3 is an operation explanatory view of the tube holding portion in the embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view of the vicinity of a guide adjusting portion according to the embodiment of the present invention.

FIG. 5 is a sectional view taken along line AA of FIG. 4;

FIG. 6 is an operation explanatory diagram of the guide adjustment unit according to the embodiment of the present invention.

[Explanation of symbols]

 28 Lower support 30 Guide plate 31 Guide plate 39 Link 40 link P Tip A Chute part M Center C Guide adjustment part

Claims (2)

[Claims] 1. A tube stocker for holding a tube for accommodating a chip, a chute part which is continuous with the tube stocker and which is held in a forward leaning position and slides down a chip delivered from the tube, and the chute part. And a chute part for receiving the lower surface of the sliding tip, a pair of guide plates for guiding both sides of the sliding tip, and And a guide adjusting portion that opens and closes the guide plate symmetrically with respect to the central axis of the moving path of the chip. 2. The tube feeder according to claim 1, wherein the tube stocker includes a pair of sandwich plates sandwiching both sides of the tube, and an adjusting bolt for adjusting an opening angle of the sandwich plates.