JPS6283964A - Automatic replenishment device for taping parts - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a feeding mechanism for taped electronic components;
In particular, the present invention relates to an automatic replenishing device that has been improved to be optimal for automatically replenishing or replacing taped parts when parts are out of stock or when a setup is changed in an electronic component mounting machine.

[Background of the invention]

Regarding the feeding mechanism for taped electronic parts, the closest known example to the present invention is JP-A-55-118698.
In the figure, JP-A-59-252499 is shown in FIG. JP-A-55-118698 (FIG. 6) discloses a component supply section, a component transfer and mounting section, a board support section, and a system for selecting multiple types of components for mounting electronic components 1 onto a board. It consists of a parts supply drive unit, etc. The taped electronic component 1 is supplied by a supply mechanism as shown in FIG. That is, the feed hole 2 of the tape 2 shown in FIG.
' is engaged with the bee of the electric train 6, and when the electric train 6 rotates at a fixed pitch, it is fed a predetermined amount. After that, the vacuum suction nozzle (1 not shown) descends to suction the electronic component 1 housed in the tape 2, and after rising, moves to attach the board (not shown).
Mount the electronic component 1 on top of the . In the component supply unit itself shown in FIG. 6, a frame 7 is fixed to a main body base 8. Therefore, after feeding a predetermined amount of electronic components 1, it is necessary to temporarily stop the machine, remove the remaining tape 2, and mount a new tape 2. Naturally, this known example has the disadvantage that it takes a long time to replenish parts because the tape attachment work must be done manually and in a confined space.

Also, another known example is JP-A-59-2!12499 (
In Fig. 7), the entire parts supply mechanism is made into a cassette that can be attached to and removed from the machine base. When replenishing parts, the parts supply mechanism (cassette) with no electronic parts is removed, and the parts are pre-attached with tape 2 (Fig. 8). The structure is such that the supply mechanism is attached to the top of the main body base. According to this, the installation work of the tape 2 itself can be performed using the spare parts supply mechanism while the machine is operating (during the loading operation), and so-called off-site setup is possible. However, since the installation of the component supply mechanism itself is done manually, it is dependent on the convenience of the operator (for example, because he was doing other work and wanted to be able to replace it immediately), which has the disadvantage of reducing work efficiency.

[Object of the Invention] An object of the present invention is to provide a mechanism that can significantly improve work efficiency by automatically performing electronic component replenishment operations and component type exchange operations during model replacement in an electronic component mounting device. It's true.

[Summary of the invention]

To achieve the above objectives, first describe the basic principle of the device of the present invention.

On average, parts are replenished in electronic component mounting equipment once every 15 minutes.
This process requires several times (each time takes about 2 minutes), which is a bottleneck in unmanned production. In addition, automatic mounting of the tape itself containing electronic components requires operations such as peeling off the upper tape and attaching it to the roll, resulting in an overly complicated mechanism. Therefore, the tape feeding mechanism is made into a cassette and the entire tape feeding mechanism is replaced (mechanism).
was considered and resolved.

In order to achieve the above object based on the above-mentioned principle, an automatic taping parts replenishing device according to the present invention comprises means for intermittently feeding taped parts, means for taking out parts, and mounting the taken out parts on a board. In an automatic parts mounting machine equipped with means for It is characterized by being provided with a transport mechanism for transporting and positioning.

[Embodiments of the invention]

Embodiments according to the present invention will be described below with reference to FIG. 1 to TLC diagrams. In FIG. 1, the rail 56α.

A tape feeding unit (U) is fixed in a predetermined position above 56b, 56c, . . . . The tape feeding unit U has a structure in which a tape feeding roller 22 and gears 24 and 25 are rotatably supported on a side plate 20. tape 2
The tape reel is stored in the box 29, and the tape 2
Pull out the starting end of the tape presser foot 2B and the guide 54.
The tape is attached via a tape feed roller 22. The tape 2 is fed by swinging the lever 25 with the pin 51 as the fulcrum (Y-shaped bar 5 is moved by another drive source).
8 slides, the core lever 25 swings) Since the feed pawl 26 engages with the teeth of the gear 25, the gear 25 and the gear 24 rotate by a predetermined angle, which causes the tape feed roller 22 to rotate. is rotated by a predetermined angle, and the tape 2 is fed by a predetermined number of steps.

Block 21 and block 50 fixed to side plate 20
are slidably guided by the lower and side surfaces of the rails 56α and 56h. The U groove 21 of the block 21 is connected to the rail 3
The bars 57J/C fixed to 6α, 56h, . . . are engaged without play. Rail 56α, 36h・
... are fixed on the slide base 59 at a constant pitch. A guide 40 is fixed to the lower surface of the slide base 59, and the guide 40 and the guide rail 42 are slidably engaged. Further, a pole nut 45 is fixed to the lower surface of the slide base 59. The pole nut 45 is rotatably engaged with the ball screw 44. The ball screw 44 is rotatably supported by the bracket 70. Further, a pin 55 is fixed to the block 50.

A C-clamp 46 with a pin 45 as a fulcrum is rotatably attached to the side surface of the rail 56b.

To explain the operation of the structure up to this point, the tape feeding unit has rails 56α, 56.
It is fixed at 6... Furthermore, C clamp 46 is connected to pin 5.
5, thereby causing the tape feeding unit to move to the rail 36.
α, 56b is fixed at a predetermined position. When the ball screw 44 rotates (the driving source is a DC motor (not shown)), the slide table 59 moves to the rail 42 via the pole nut 43.
, 42 as guides. As a result, it is possible to select which unit (that is, which electronic component) is to be supplied from among the plurality of tape feeding units fixed on the plurality of rails 56α, 56h, . . . . The selected tape feeding unit is the suction nozzle 71
When the tape 2 is fed one pitch, the suction nozzle 71 descends, picks up the electronic component 1 housed in the tape 2, rises, and then onto a board (not shown). Transport and load.

Next, the mechanism on the main body base 19 will be explained.

The brackets 72 and 75 fixed to the main body base 19 and the rails 69α, 69h... are the rails 56α, 56b.
It is fixed at the same pitch as... Further, slide rails 65, 65' are fixed on the main body base 19', and are slidably engaged with slide blocks 64, 64 fixed on the lower surface of the slide base 54.

Bracket 55°55 fixed to slide base 64
A guide bar 62, 62' is fixed to '. The ball screw 65 is also rotatably supported by the brackets 55 and 55, while the block 61 engages with the ball screw 65 and is guided by the guide bars 62 and 62 to be stationary. A motor 68 is fixed to the bracket 55', and its rotating shaft is directly connected to the ball screw 65. A plate 55 is fixed to the bracket 55, a cylinder 52 is fixed on the plate 55, and a block 49 is slidably engaged. A cylinder 50 is fixed to this block 49, and a hook 47 is slidably engaged therewith.

The rod of the cylinder 52 is attached to the block 49, and the rod of the cylinder 50
The rods are each fixed to the frame 47.

On the other hand, a bracket 59 is fixed on the block 61, and a cylinder 60 and a hook 57, which is rotatably supported around the pin 5B as a fulcrum, are fixed to the bracket 59. The rod of cylinder 60 is supported at one end of hook 57.

Next, the operation of these mechanisms on the main body base 19' will be explained.

The mechanism on the slide base 54 is a motor (not shown) that rotates a ball screw 67 using a guide rail 65 as a guide.
to move in the X-axis direction. Further, the block 61 and the hook 57 are moved in the Y direction by the rotation of the motor 68. That is, the hook 47 can select any position in the Y-axis direction,
Any position of the hook 57 can be selected in both the Y-axis direction and the X-axis direction.

Next, the replacement operation of the tape feeding unit will be explained.

Rail 56α on slide base 59.

At 56h..., 1 tape feeding units are lined up. (It is assumed that rL type parts are selected and installed).

In FIG. 2, a case will be explained in which the tape feeding unit &1 is replaced because it is out of parts. Figure 5 is 1 of Figure 2.
-1 sectional view. When the loading operation is stopped due to the no-component signal (detected on the loading device main body side) K, the slide table 59 moves to the position where it should be discharged (the first position).
Come to position A) in the figure. At the same time, the slide table 54 also moves to be directly below the tape feeding unit (41) to be ejected. Then, as shown in FIG. 2, the 7-/-47 engages with the C-clamp 46, and in this state, the cylinder 50 rotates the hook 46 counterclockwise in the figure to release the engagement with the pin 55. (See Figure 4).

Next, the motor 68 rotates and moves the block 61 in the Y-axis direction in this state in which the seven blocks 57 (Fig. 1) are swung by the cylinder 60 and engaged with the projections 56 from the tape feeding unit. As a result, the tape feeding unit of MU 1 is transferred from the rails 56α, 56h to the rails 69α, 69h.

Next, the hook 46 is returned to the position shown in FIG. 2 by the cylinder 50, and the hook 57 is also released from engagement with the protrusion 56 by the cylinder 601C. In this state, the slide table 59 moves to a position (41)t where the tape feeding unit to be supplied next is installed. Hook 57 at the same time.
The hook 47 also moves to a position corresponding to the above. Then, the hook 57 swings again and engages the protrusion 56 of the tape feeding unit to be fed, and the hook 47 opens the C-clamp 46 as shown in FIG.

In this state, the block 61 is moved by the motor 68 and the hook 57. The tape feeding unit is transferred from the rails 69α, 69b side to the rails 56α, 56b side via the protrusion 56. U1112 to pin 57 on rail 56α, 56b side
1' is engaged, the cylinder 50 engages the C clamp 46 with the pin 55 as shown in FIG. At this time, the shaft of the cylinder 50 stops at the position shown in FIG. Furthermore, in order to ensure tightening, the cylinder 5
2 moves the working block 49 in the direction in which the C clamp is tightened. After the hook 47 is securely tightened, the cylinder 52 returns the hook 47 to the gap Gl between the roller 48 and the roller 48, as shown in FIG.

G2 is secured.

According to the mechanism of this embodiment described above, when there are no more electronic components to be supplied, the entire supply unit is automatically discharged to a predetermined position, and then the supply unit with the tape 2 attached in advance is placed in the predetermined position. can be automatically supplied to

〔Effect of the invention〕

As described above, when the present invention is applied, parts to be supplied can be set in advance in the supply mechanism (unitized) and lined up at predetermined positions, so that when parts run out, they can be automatically replaced. Therefore, the replacement time can be shortened compared to conventional manual work, and there is no need to stop the machine due to the operator's convenience, and work efficiency can be significantly improved. Additionally, unmanned production will become possible.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the parts replenishing device of the present invention, and FIG.
Figure 5 is an enlarged front view of part A, and Figure 5 is a 1-1 sectional view of Figure 2.
FIG. 4 shows a front view during the operation of FIG. 2, and FIG. 5 shows a plan view of the parts replenishing device (FIG. 1). FIG. 8 is a perspective view of an electronic component storage tape, and FIGS. 6 and 7 are perspective views of a conventional tape feeding mechanism. DESCRIPTION OF SYMBOLS 1... Electronic component, 2... Tape, 19... Main body base, 20... Side plate, 22... Tape feed roller,
21...Block, 50...Block, 36α, 5
6h...Rail, 69IX. 69h...Rail, 59...Slide base, 4(
5-0C clamp, 47... hook, 57... hook, 56... protrusion, 61... block, 65, 6
7...Ball screw.

Claims (1)

[Claims] An automatic parts mounting machine equipped with a means for intermittently feeding taped parts, a means for taking out the parts, and a means for mounting the taken out parts on a board, which is equipped with a storage mechanism for taped parts and a feeding mechanism for taped parts. An automatic replenishment device for taping parts, comprising a tape feeding unit and a conveying mechanism for conveying and positioning a plurality of tape feeding units in two horizontal orthogonal axes X and Y directions.