JPH01315197A - Electronic component mounting equipment - Google Patents

Abstract

PURPOSE:To replace supply units easily by locating three or more supply units on a transfer unit so that the supply units located at the center and the supply units located on sides can connect with and separate from each other freely and such supply units which are often replaced are located on sides where replacement can be done easily. CONSTITUTION:Three or more supply units located on a transfer unit 11 move sliding on the transfer unit 11. A specified electronic component is taken up by a transfer head 8 when the component is located at a take up position and is transferred to a board 7 of a mounting portion 3, to be mounted there. More electronic components carried by the supply units located on sides are transferred to the board 7 to be mounted than the ones carried by the supply units located at the center. Therefore, tape units 24 established on the side supply units have to be replaced frequency. When the tape units 24 is replaced, the side supply units are moved to the end of the transfer unit to be separated from the other supply units. By this, it is possible to provide an electronic component mounting unit which is equipped with a supply portion to handle a variation of tape unit replacement frequency.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an electronic component mounting apparatus, and particularly to the structure of an electronic component supply section.

(Prior art) As a device for mounting electronic components such as ICs and LSIs on a board, electronic components encapsulated in an electronic component encapsulation tape are picked up by a transfer head, transferred to a board positioned on a mount section, and mounted. What it does is known. This type of electronic component-encapsulating tape is generally wound into a tape unit by being wound around a feed reel, and multiple tape units with different types of electronic components are arranged side by side to supply electronic components. 9, which configures the unit and slides this supply unit back and forth on the moving device, positions the electronic components of each tape unit at the tick-up position in the order of mounting, where they are ticked up by the transfer head and transferred to the board. It is set to be installed.

However, in the past, only one supply unit was installed in a mobile device, so if an electronic component of one of the tape units on the supply unit ran out and needed to be replaced, the operation of the device had to be stopped. However, there was a problem in that the implementation efficiency did not increase accordingly.

In order to solve this problem, it has been proposed to divide the supply unit into two (Japanese Patent Laid-Open No. 14049/1983).
No. 9). However, this product is equipped with only two supply units, so if one supply unit runs out of electronic components, the operator must immediately move to the supply section before the other supply unit runs out of electronic components. Therefore, there is a problem in that an operator is still busy replacing the tape unit without having time to spare. In particular, this type of electronic component mounting equipment is generally not installed and used alone; it has a printed circuit board printing device, a soldering device for soldering electronic component leads, and a mounting device on both sides. Inspection equipment, etc. that inspect the quality of the equipment are installed side by side, and workers must manage these peripheral devices as well. There was a problem that the system could not be managed properly.

By the way, this type of supply unit is equipped with a considerable number of tape units, in some cases over 100 tape units.
According to the observations of the present inventors, these tape units include a mixture of tape units that consume a large number of electronic components and are frequently replaced, and tape units that consume a small number of electronic components and are rarely replaced.

Therefore, in view of the fact that there is generally considerable variation in the frequency of replacing tape units as described above, the present invention focuses on this point and provides an electronic component mounting apparatus equipped with a supply section that is advantageous for replacing tape units. The purpose is to provide.

(Means for Solving the Problems) For this purpose, the present invention provides an electronic component supply unit, which is made up of a plurality of tape units equipped with electronic component encapsulating tape arranged side by side, in a moving device, and the electronic component supply unit. There is a supply section for electronic components that is slid along this moving device by the drive of a drive section, and an electronic component on an electronic component encapsulating tape is picked up in this supply section and transferred to a board positioned on a mount section. In the electronic component mounting apparatus, three or more of the above-mentioned supply units are arranged on the above-mentioned moving device, and tape units that are replaced less frequently are arranged in parallel to the supply unit in the center, and Tape units that are frequently replaced are arranged side by side in the supply unit, and the supply unit in the center and the supply unit in the side part can be freely joined and separated from each other.

(Function) In the above configuration, the three or more supply units arranged are guided by the moving device and slid, and with the predetermined electronic components positioned at the pick-up position, are picked up by the transfer head, and the mount unit is is transferred to the board and mounted thereon. Among three or more supply units, the consumption of electronic components in the side supply units -71 is greater than that in the center, so the tape units installed in the side supply units are frequently replaced. Must be. In such case,
This side supply unit is moved to the side of the mobile device and evacuated separately from other supply units, and the other supply units continue the mounting operation on the mobile device while being evacuated to the side. Replace the tape unit in the supplied supply unit. When the replacement is completed, the other supply unit being mounted is joined to the replaced supply unit, and the mounting work is continued again using these supply units.

(Example 1) Hereinafter, the present invention will be described in detail by taking a rotary head type electronic component mounting apparatus as an example and referring to the drawings.

FIG. 1 is a perspective view of the electronic component mounting apparatus, and FIG. 2 is a plan view, in which 1 is a main box in which a drive device is housed, and 2 is a rotary head rotatably disposed at the bottom of the main box 1. It is.

Reference numeral 3 designates a mount portion disposed at the lower front side of the rotary head 2 on the front side of the box 1, and includes an XY child table;
The substrate 7 is positioned at a predetermined position by driving the XY child table 5. Reference numeral 8 designates a number of transfer heads vertically disposed below the rotary rod 2 along the circumferential direction, and the electronic components are attracted to the lower end portions of the transfer heads.

Reference numeral 9 denotes a conveyor for carrying the substrate 7 into the mounting section 3 and carrying it out from there. Reference numeral 10 denotes an electronic component supply section provided on the rear side of the main body box 1. Next, the details thereof will be explained with reference to FIGS. 2 to 4.

11 is a horizontally elongated moving device, and a feed screw 13 is disposed in a groove 12 recessed in the upper part of the moving device. Reference numeral 14 denotes a motor as a drive unit disposed inside the moving device 11, and the feed screw 13 is driven by this motor 14. 1
5.16 is a bearing for the feed screw 13. A, B, and C are electronic component supply units disposed on the moving device 11, each having a plate-shaped base 21, 22, and 23, and a plurality of electronic component supply units arranged in parallel on the bases 21 to 23. It consists of a tape unit 24.

Each supply unit A, B, as detailed below.

C can be joined and separated from each other. As shown in FIG. 2, the central part of the moving device 11 is an operation area where the supply unit slides back and forth to perform mounting work, and the side parts are attachment/detachment areas where the connecting part 40 (described later) is attached and detached. A margin area is secured between the areas.

FIG. 4 is a side view of the supply unit B, in which the board 25 on which the tape unit 24 is set is removably attached to the upper surface of the stand 22 disposed on the moving device 11. It is configured as follows. Reference numeral 31 denotes a stop formed at the front part of the base part 22, and 32 is a ramp part provided at the rear part that can be opened and closed. Clamp part 3
Fixed by 2. The clamp portion 32 may be operated manually or by a driving means such as a cylinder.

In other words, these 31 and 32 constitute a means for detachably attaching the tape unit 24 to the base portion 22. Note that in each figure, the tape unit 24 is
, the clamp portion 32, etc. are omitted as appropriate.

The tape unit 24 includes a reel 27 for discharging an electronic component encapsulating tape 26 in which electronic components are encapsulated, and a cover tape 2.
It consists of 61 take-up reels 28, etc. The cover tape 261 of the electronic component encapsulating tape 26 fed out from the feed reel 27 is peeled off by a peeling means (not shown), and the electronic components encapsulated in the electronic component encapsulating tape 26 are exposed below the rotary head 2. is positioned at the positioning position a (see FIG. 2), picked up by the transfer head 8, transferred to the substrate 7 of the mount section 3 by intermittent rotation of the rotary head 2, and mounted thereon. Reference numeral 29 denotes a nut attached to the lower surface of the base portion 22, and is screwed onto the feed screw 13. When the feed screw 13 is rotated by the drive of the motor 14, the feed unit B
slides back and forth on the moving device ll. Reference numerals 33 and 34 indicate guide rails disposed on both sides of the feed screw 13 in parallel thereto, and reference numerals 35 and 36 indicate fitting portions formed on both sides of the lower surfaces of the bases 21 to 23.

Supply units A and C have the same structure as supply unit B, but in this embodiment, these supply units A and C have the same structure as motor 1.
4. It does not have driving means such as the feed screw 13 and the nut 29, and is merely placed on the guide rails 33 and 34.

Therefore, among the three supply units A-C, only the central supply unit B is driven by the motor 14 and slides, and the other side supply units A and C are connected to the supply units I-B by the connecting part 40. It is connected to and towed by this and slides. That is, only supply unit B is a drive supply unit driven by the motor 14, and the other two supply units A and C are driven supply units that slide by being pulled by this drive supply unit B. By mixing and organizing the drive supply unit and the driven supply unit in this manner, drive means such as the motor 14, feed screw 13, nut 29, etc. are omitted as much as possible.

FIG. 5 shows a connecting section 40 between supply unit B and supply unit C.
In this figure, 41 is a stop attached to the side wall of the pedestal part 22 of the supply unit I-B, and 42 is rotatably attached to the side wall of the pedestal part 23 of the supply unit C by a pin 43. 44 is a biasing spring material, 45 is a locking portion attached to the tip of the lever 42, and 46 is a locking hole into which the locking portion 45 is fitted. Further, 47 is a cylinder serving as an attachment/detachment device for attaching and detaching the connecting portion 40, and 471 is a rod thereof. The lever 42 is urged counterclockwise by the spring force of a spring member 44. When the rod 471 of the cylinder 47 protrudes, the lever 42 is pushed by the rod 471 and rotates clockwise against the spring force of the spring member 44, and the locking portion 45 rotates upward and separates from the locking hole 46. However, the connection state between supply unit B and supply unit C is released. In addition, with the locking portion 45 rotated upward in this manner, the supply unit B approaches and comes into contact with the supply unit C, and there, the cylinder 47
When the rod 471 is pulled in, the lever 42 is moved by the spring material 4.
4, the locking portion 45 rotates downward and engages with the locking hole 46, and the supply unit B and the supply unit C are connected.

In order to firmly connect the supply parts B and C without rattling, the locking surface 461 of the locking part 46 has a tapered shape, and is firmly pressed against the tapered surface of the locking hole 46. . The structure of the connecting portion 40 between supply unit A and supply unit B is also similar. Note that supply units A and C may also be provided with drive means such as feed screws, NANDs, and motors in the same way as supply unit B, so that they can slide on their own without being towed by supply unit B. If they are made to slide independently, attachment/detachment devices such as the connecting portion 40 and the cylinder 47 can be made unnecessary.

6 and 7 show an exchanging device 60 for the tape unit 24, in which 61 and 62 refer to the conveyor 9.
63 is a magazine or a stocker for the tape unit 24, which is disposed near the operator M. This exchange device 60 includes a pair of arm-shaped left and right holding members 64, 64 that hold the supply unit A, a drive unit 65 such as a motor for rotating the holding members 64, 64 in the opening/closing direction N, and the holding members 64, 64. a shaft 67 for guiding the cylinder 66 to slide between the supply section 10 and the exchange area 61;
, and a drive section 68 for driving this sliding motion.

Next, the operation of this exchange device 60 will be explained.
The supply unit A, which has lost its electronic components within the first operation area, is sent to the attachment/detachment area on the side, and the cylinder 47 is operated to release the connection with the supply unit B. Next, the holding members 64.64 are lowered from above to the supply unit l-A.
(see the chain line in FIG. 7), then hold the supply unit A and go up to the exchange area 61. Therefore, the operator M replaces the tape unit 24 on the supply unit A with no electronic components, with a new tape unit 24 stored in the magazine 63. Next, the holding member 64 returns to the moving device 11, descends there to place the supply unit A on the moving device 11, and the holding member 64 expands to separate from the supply unit A and move upward. do. Then, supply unit B approaches supply unit A, and both A and B are connected, and supply unit B returns to the operation area and continues the mounting work. Such exchange device 60 is also arranged on the other supply unit C side, and this exchange device 60 is also disposed on the other supply unit C side.
The tape unit 24 is also replaced in the same manner. In this case, the supply units A and c do not have the nut 29 screwed onto the feed screw 13, unlike the supply unit 1-B, and are simply placed on the moving device 11, so it is easy to It can be lifted from the moving device 11 and landed on it. Of the three supply units A-C, the central supply unit B is equipped with a tape unit 24 that consumes less electronic parts and is therefore less frequently replaced. Supply unit) A
, C are provided with a tape unit 24 that consumes a large amount of electronic parts and is therefore frequently replaced.

The present apparatus has the above-mentioned configuration. Next, the operation of the supply section 10 will be explained with reference to FIG. 8.

In the same figure (a), there are three supply units A.

B and C slide back and forth in the operation area in a joined state connected by the connecting part 40, and mounting work is performed. If the electronic components in supply unit A on the side are missing or the type of electronic components is changed, each unit) A, B, and C should be moved to the attachment/detachment area on the left and the operation of the cylinder 47 described above should be done. supply unit A is separated from supply unit B (see figure (b)), and then supply unit B is separated.

C returns to the central operating area and the mounting work continues.
(See FIG. 3(C)) During this time, the tape unit '24 of the supply unit A is replaced by the exchanger 1* device 60. Of course, the tape unit 24 can be replaced by the replacement device 6.
0, the operator may move to the supply section 10 instead of performing the exchange in the exchange areas 61 and 62, and in this case, the above-mentioned attachment/detachment area becomes the exchange area. Once the replacement work is completed, replace the supply units B and C with the supply unit A as soon as possible before the other supply unit C runs out of electronic components.
(see figure (d)), and again 3
The three supply units A, B, and C are returned to the operation area and the mounting work is continued (see (e) in the same figure). This replacement work for the tape unit 24 is also performed for the other supply unit C in the same way.

(Example 2) FIG. 9 shows a case where there are four supply units D, E, F, and G. In this case as well, the central supply unisol l-E,
A tape unit that is replaced less frequently is disposed in F, and supply units D and G are provided in which tape units that are more frequently replaced are set on the sides where it is easier to replace. A total of four attachment/detachment devices 47 are provided at each attachment/detachment position. Therefore, in this case as well, when the electronic components in the side supply units D and G are used up, the supply units D-G are moved to the side and the supply units are separated. Of course, this one also has a motor and feed screw for all supply units D-G.

A drive means such as a nut may be provided so that each can slide on the moving device by itself, or a drive means may be provided only on some supply units (for example, supply units 1-D and F). , other feeder units (e.g. supply unit E
, G) may be towed and slid by this supply unit. Also, in this case, it is advantageous in terms of mounting work, device drive programming, etc. if the electronic component types of supply units D and E on the left and supply units F and G on the right are arranged symmetrically. .

The present invention can be used in various ways, for example, a mobile device is equipped with three or more supply units, but it is not always necessary to use all the supply units at the same time; It is also possible to perform mounting work by sliding only some supply units through the operating area, while other supply units can be separated from them and evacuated to the side as appropriate.The way they are used depends on the mounting situation and implementation. It can be changed freely according to conditions etc.

In addition, in the above embodiment, both sides of the moving device are used as attachment/detachment areas, but if an electronic component is lost, the sliding of the supply unit is immediately stopped in the operating area, and the supply unit can be separated or replaced there. Therefore, the positions of the attachment/detachment area where the supply unit is joined and separated and the tape unit exchange area are not limited to those in the above embodiment.

(Effects of the Invention) As described above, the present invention provides an electronic component mounting apparatus of this type, in which three or more supply units are arranged in the above-mentioned moving device, and tape units that are replaced less frequently are arranged in parallel in the central supply unit. At the same time, the tape units that are frequently replaced are arranged side by side in the side supply units, and the central supply unit and the side supply units can be joined and separated from each other, making it easy to replace the frequently replaced supply units. By arranging it on the side where it is easy to work, it is possible for the operator to carry out the replacement work very advantageously without having to be busy with the replacement work.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is an overall perspective view of an electronic component mounting apparatus, Fig. 2 is a plan view, Fig. 3 is a front view of the supply section, and Fig. 4 is a supply unit. side view, fifth
The figure is a side view of the connecting part, FIGS. 6 and 7 are an overall side view and a partial front view of the exchanger, and FIGS. 8(a) and (b).
). (c), (d), and (e) are plan views of the supply section during mounting work, and FIG. 9 is a plan view of the supply section during mounting work of another embodiment. 3...Mount section 7...Substrate 8...Transfer head 10...Supply section 11...Movement device 14...Motor 24 as a drive section...Tape unit 26...Electronic components encapsulation tape

Claims (1)

[Claims] An electronic component supply unit comprising a plurality of tape units equipped with electronic component encapsulating tape arranged side by side is disposed on a moving device, and the supply unit is slid along the moving device by driving a drive section. In the electronic component mounting apparatus, the electronic component mounting apparatus comprises a supply section for electronic components, and a transfer head that takes up the electronic components from the electronic component encapsulating tape in the supply section, and transfers and mounts the electronic components on the board positioned on the mount section. Three or more units are arranged in the above-mentioned moving device, tape units that are replaced less frequently are arranged in parallel in the central supply unit, tape units that are replaced more frequently are arranged in parallel in the side supply units, and tape units that are replaced more frequently are arranged in parallel in the central supply unit, and An electronic component mounting apparatus characterized in that a supply unit in the section and a supply unit in the side section can be freely joined and separated from each other.