JPH04167499A - Magazine type printed-circuit board supply device - Google Patents

Abstract

PURPOSE:To enable a printed-circuit board to be supplied efficiently by providing a plurality of magazine supporting members with a gap which is larger than a magazine height and by moving those magazine supporting members along an annular path including a straight line part in up and down directions. CONSTITUTION:A magazine supply device 12 has supply conveyers 18 and 20 and supplies a magazine 22 to a magazine transfer position which is set at a terminal part of a conveyer 20. A magazine up/down device 14 is provided at this magazine transfer position and a magazine supporting member 70 travels along an annular path including a straight line part of a belt 58, thus enabling the magazine to be lifted. Also, a substrate extrusion cylinder 180 is provided at an upper part from the supply device 12 and pushes a printed-circuit board 30 at this position for supplying to an electronic parts mounting device. On the other hand, each supporting member 70 is provided at a gap where the next magazine 22 does not contact until carrying-in of the magazine 22 ends. Then, when supply of the substrate 30 by the magazine 22 ends, the next magazine 22 moves to a position near the printed-circuit board supply position, thus enabling the printed-circuit board 30 to be supplied efficiently.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a magazine-type printed circuit board supply device that stores and supplies printed circuit boards in a magazine.
In particular, it relates to improving supply efficiency.

BACKGROUND OF THE INVENTION Electronic circuits are formed on printed circuit boards through various processes such as applying solder, adhesive, etc., and mounting electronic components. There are magazine-type devices for supplying printed circuit boards to equipment that performs these processes.One-magazine type printed circuit board supply devices (a) move a magazine containing multiple printed circuit boards in multiple stages to a magazine transfer position; (b) A magazine support member is provided, and the magazine support member supports the magazine at the magazine transfer position and raises the magazine by a pitch equal to the storage pitch of the printed circuit boards in the magazine. and a magazine lifting device for sequentially positioning the printed circuit boards at the printed circuit board supply position. If the magazine is used in this way, it becomes easy to supply printed circuit boards.

Problems to be Solved by the Invention However, the conventional magazine-type printed circuit board supply device has
There was a problem with poor supply efficiency. The magazine lifting device is provided with one magazine supporting member, and the magazine supporting member is lowered to the magazine transfer position after the supported magazine finishes supplying printed circuit boards and the magazine is ejected by the ejecting device. After loading the next magazine, it is raised and the printed circuit board is moved to the printed circuit board supply position. Therefore, after the magazine is ejected, it takes time for the next magazine to become ready to supply printed circuit boards, resulting in poor supply efficiency.

An object of the present invention is to provide a printed circuit board supply device that can efficiently store and supply printed circuit boards in a magazine.

Means for Solving the Problems In order to solve the above problems, the present invention provides a magazine lifting device of a printed circuit board supplying device including the above-mentioned (a) magazine feeding device and 0)) magazine lifting device, in which the magazine supporting member is A plurality of the magazine supporting members are provided at intervals larger than the height of the magazine, and a moving device is included to move the magazine supporting members along an annular path including a straight portion in the vertical direction, and the printed circuit board feeding position is set by the magazine feeding device. The next magazine is set at a higher position by a distance larger than the arrangement interval of the magazine support members, and the next magazine is placed between the magazine that is currently positioned at the printed circuit board supply position and is supplying printed circuit boards, and the magazine supply device. The gist of the present invention is to provide a space detection means for detecting that a space that can be accommodated has been created, and a control means for causing a magazine supply device to supply the magazine to the magazine transfer position based on the detection by the space detection means. It is something.

In the magazine-type printed circuit board supply device configured as described above, the distance between the magazine supply device, and furthermore, between the magazine transfer position and the printed circuit board supply position, is larger than the interval between the magazine support members. Therefore, while a magazine is supplying printed circuit boards, a space is created below the magazine in which the next magazine can be accommodated. Then, based on the detection of this space, the next magazine is supplied to the magazine transfer position, so as the magazine currently supplying the printed circuit board rises, the next magazine is supported by the next magazine support member and raised. It happens. Therefore, when the magazine that currently supplies printed circuit boards ends, the next magazine has already been moved to the vicinity of the printed circuit board supply position, and the supply of printed circuit boards from the next magazine can be started immediately. I can do it.

Effects of the Invention As described above, according to the printed circuit board supplying device of the present invention, when the supply of printed circuit board (M) board from the previous magazine is finished, the next magazine has already reached the vicinity of the printed circuit board supply position, so that the printed circuit board is not supplied. Supply can be carried out efficiently. In addition, although there are multiple magazine support members, they are moved annularly and in the same direction at the same time, so they do not interfere with each other, which simplifies the configuration of the moving device and reduces device costs. can be kept low.

Embodiments Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

In FIG. 1, 10 is a base. On the base 10 is a magazine feeding device 12. A magazine lifting device 14 and a magazine ejecting device 16 are provided. The magazine supply device 12 has first and second supply conveyors 18 and 20 provided in series on the base 10, and the magazine 22 is transferred to a magazine transfer device set at the terminal end of the second supply conveyor 20. Supply to position. First and second supply conveyors 18
20 are provided in pairs separated by a distance in the width direction perpendicular to the conveyance direction, and are driven by supply conveyor drive motors 23 and 24. Also, magazine 22
As shown in FIG.
Inside, crosspieces 26 are provided in multiple stages, and one printed circuit board 30 is stored in each of the many storage sections 28 formed thereby. In addition, a first supply conveyor 1 is provided near the first supply conveyor 18 and at the magazine transfer position, respectively.
First and second magazine detection sensors 32 and 34 (see FIG. 13) are provided to detect whether or not the magazine 22 is present at the top and magazine transfer positions, respectively, based on the presence or absence of reflected light.

The magazine lifting device 14 is provided at the magazine transfer position. As shown in FIGS. 1 and 2, two columns 36 are erected on one widthwise side of the second supply conveyor 20 at a distance in the conveyance direction, and on the other side as well. Two pillars 38 are erected at a distance in the same direction, and the upper ends of these pillars 36 and 38 are connected to four beams 40.
(See Figure 3). Between these two columns 36 and 38, a plurality of guide rods 42 and one threaded shaft 44 are provided horizontally at appropriate intervals in the vertical direction, and each set of guide rods 42 and one screw shaft 44 are provided horizontally at appropriate intervals in the vertical direction. 42
A movable column 46 is slidably fitted into the shaft 46 and is screwed onto the screw shaft 44 through a nut 48 . The two screw shafts 44 are connected by a chain (not shown), and when one of the screw shafts 44 is rotated by a handle operation, the two movable columns 46 are moved simultaneously, and the distance from the column 36 is reduced. adjusted.

Rotating shafts 54 are provided at the upper and lower ends of the two columns 36, respectively.
is attached rotatably around an axis parallel to the conveyance direction of the second supply conveyor 20. These rotating shafts 5
Pulleys 56 are fixed to both ends of each rotating shaft 54, and an endless belt 58 is wound between the pulleys 56 at the same end of each rotating shaft 54. Similarly, rotary wheels 60 are rotatably attached to the upper and lower ends of the pair of movable columns 46, and pulleys 62 are attached to both ends of each rotary shaft 60, and a belt 64 is wound around them. There is.

A pair of f bells) 58 and 64 are provided on each side of the second supply conveyor 20, and these bells)
As shown in FIG. 5, each of the 58 and 64 is provided with five magazine support members 70 at intervals greater than the height of the magazine 22, and as shown in FIG. is installed.

The magazine support member 70 fixed to the belt 64 will be explained as an example. As shown in FIGS. 7 and 8, this magazine support member 70 includes a support portion 76 provided on the distal end surface of a longitudinal mounting plate 74, and is fixed to the belt 58 at both ends in the longitudinal direction. ing. As shown in FIG. 8, the width of the belt 58 is larger than the dimension in the rotational axis direction of the pulley 56, and both ends of the belt protrude from the pulley 56, and the magazine support member 70 is attached to the outer peripheral surface of the belt 58. The parts protruding from the pulley 56 are fixed by bolts 78 and 80, respectively, so that even when the magazine support member 70 is fixed to the belt 64, there is no problem in feeding the belt 64 by the pulley 62. A magazine support member 70 is provided on the portion of the belt 64 that protrudes outward in a direction parallel to the rotation axis of the pulley 62.
A bracket 82 is also fixed thereto. Bracket 8
2, as shown in FIG. 9, consists of a fixing part 86 with a square cross section and mounting parts 88 provided on both upper and lower end surfaces of the fixing part 86, respectively. The fixing part 86 is fitted into a six 89 (see FIG. 7) provided on the belt 64 and fixed to the magazine support member 70 by a bolt 80, and the two attachment parts 8
A guide roller 90 is attached to each of the pulleys 8 so as to be rotatable about a center line parallel to the rotational axis of the pulley 62.

These guide rollers 90 are fitted into and guided by groove-shaped guide rails 92 fixed to the movable column 46, thereby preventing the belt 64 from swinging in the width direction and thickness direction. Note that a shock absorber (not shown) is incorporated in the support portion 76 of the magazine support member 70, so that the shock applied to the magazine 22 when it comes into contact with the magazine 22 is alleviated. In addition, a pair of belts 5
A magazine support member 70 and a guide roller 90 are similarly attached to 8, but in this case, a grooved guide rail 92 is fixed to the column 36.

A pair of clamps 96 is attached to each magazine support member 70, respectively. Taking the magazine support member 70 attached to the belt 64 as an example, as shown in FIG. A clamp lever 104 is rotatably attached to a shaft 102 fixed to the lower end thereof. The clamp lever 104 has a dogleg shape as shown in FIG. 11, and a clamper 108 is provided at the tip of an arm portion 106 extending upward from the shaft 102. Further, an engagement roller 112 is rotatably attached to the side surface of the tip end of the other arm portion 110 of the clamp lever 104 . Further, a through hole 116 is formed between the shaft 102 of the arm portion 106 and the clamp portion 108, and a support bolt 118, which is erected on the magazine support member 70 through the elongated portion 98, passes through the through hole 116. are doing. A spring 120 disposed between the head of the support bolt 118 and the clamp lever 104 urges the clamper 108 to protrude outward from the outer peripheral surface of the belt 64.

At a position that is a distance shorter than the height of the magazine 22 in the moving direction of the belt 64 when the magazine is raised from the part of the belt 64 where the magazine support member 70 is fixed, there is a 10th
As shown in the figure, a mounting plate 124 is fixed with bolts 125. A pair of elongated parts 126 are formed on the mounting plate 124, and clamping tools 128 similar to the aforementioned clamping tools 96 are attached to each of them, and together with the clamping tools 96, they constitute the magazine clamping device 72. Magazine 2
2 is adapted to be clamped by four clamping tools. Note that, like the magazine support member 70, the mounting plate 124 is fixed at a position away from the pulley 62 of the belt 64, and the clamp tool 96 is deviated from the clamp tool 128 in the longitudinal direction of the magazine support member 70. Fixed in position. In addition, a pair of port insertion holes 130 are formed in the belt 64 at two locations spaced apart in the vertical direction (the insertion holes 130 into which the port 125 is inserted are not shown), and the mounting plate 124 By changing the mounting position of the clamp tool 96
The distance between and 128 can be adjusted according to the height of the magazine 22. Furthermore, the clamp tool 96,1
28 magazine support member 70. By adjusting the mounting position with respect to the mounting plate 124, each pair of clamp tools 9
6 and between the clamps 128 in the magazine 2.
The distance can be adjusted according to the depth of 2. Clamps 96 provided on belts 58 and 64, respectively;
The interval 128 can be adjusted to match the width of the magazine 22 by moving the movable column 46.

A lower rotating shaft 60 provided on the pair of movable columns 46
As shown in FIG. 11, between the pair of pulleys 62, a pair of plate cams 136 (only one of which is shown in the figure) is rotatable relative to the rotating shaft 60 and axially The position is adjustable. These plate cams 136 are
It has a semi-cylindrical surface 138 centered on the axis of the rotating shaft 60, and two inclined surfaces 140 extending from the upper edge of the semi-cylindrical surface 138 and approaching each other on the upper side. Also, plate cam 1
A pair of plate cams 144 are provided above the clamps 36 at a distance approximately equal to the distance between the clamps 96 and 128. These plate cams 144 have a vertical surface 146 parallel to the straight portion of the belt 64, and sloped surfaces 148 and 150 extending away from the belt 64 from both upper and lower edges of the vertical surface 146, respectively. The magazine support member 70 is provided so as to be adjustable in position in the vertical direction and in the longitudinal direction of the magazine support member 70. Further, above the plate cam 144, a sixth
As shown in the figure, a plate cam 15 having the same configuration as the plate cam 144
2,154 are provided.

The plate cam 152 is provided at a magazine ejection position which will be described later, and the position of the magazine support member 70 in the longitudinal direction can be adjusted. Further, the plate cam 154 is adjustable in position in the vertical direction and the longitudinal direction of the magazine support member 70, and is provided at a distance from the plate cam 152 that is approximately equal to the distance between the clamps 96 and 128. The plate cams 136 and 152 and the plate cams 144 and 154 are shifted in position in the longitudinal direction of the magazine support member 70 and are provided at positions corresponding to the clamps 96 and 128, respectively. In addition, although illustration is omitted,
Similar plate cams 136, 144° 152, 154 are provided on the sides as well.

Each clamp lever 104 of the clamp tool 96, 128 is
The engagement roller 112 is connected to the plate cams 136, 144, 152, 1
54, the clamper 108 is biased by the spring 120, as shown by the two-dot chain line in FIG.
is in the clamp position where it protrudes from the outer peripheral surface of the belt 64 (58), but as the belt 64 moves, the engagement roller 112 is moved to the semi-cylindrical surface 138. When engaged with the vertical surface 146, the clamper 108 is rotated against the biasing force of the spring 120 to an unclamped position retracted inside the belt 64 (58), and the magazine 22 is unclamped. At this time, the clamping tools 96 and 128 are provided with their positions shifted in the longitudinal direction of the magazine support member 70, and the plate cams 136, 144, 152, and 154 are also provided at positions that match them. The engagement rollers 112 do not contact the vertical surfaces 146 of the plate cams 144, 154 and are not unclamped as they pass over the plate cams 144, 154. Similarly, clamp tool 1
The clamp of 2B is not unclamped by the plate cams 136, 152.

The belts 58 and 64 on which the magazine support member 70 and the magazine clamp device 72 are provided in this way are connected to the rotating shaft 5
4.60 is rotated by a belt drive motor 160 (see FIGS. 1 to 3) and moved. The belt drive motor 160 is provided with its rotation axis extending in the vertical direction, and its rotation is controlled by the speed reducer 1.
The rotating shafts 54, 6 are connected by two bevel gears forming the
The rotation axis is converted into rotation about an axis parallel to the rotation axis of 0, and is transmitted by a belt 164 to a bevel gear provided in a gear box 166. This bevel gear is provided concentrically with the rotating shaft 54 and is meshed with a bevel gear fixed to one end of a rotation transmission shaft 168 (see FIG. 3) provided at right angles to the rotating shaft 54. The rotation is transmitted to a bevel gear fixed to one end of the rotating shaft 54 via the gear. Further, a bevel gear is fixed to the other end of the rotation transmission shaft 168 and housed in the gear box 170, and is meshed with a bevel gear fixed to one end of the rotation shaft 60. Therefore, the belt drive motor 160
The rotation of the speed reducer is 162 degrees) 164. At the same time, the rotation transmission shaft 1
68 and bevel gears to the rotating shaft 60, the rotating shafts 54 and 60 are rotated synchronously, and
The book belt 58.64 is simultaneously revolved and the magazine support member 70 is moved along an annular path including the straight portion of the belt 58.64. In this embodiment, the rotating shafts 54, 60 . Pulley 56. 62° bell) 58, 64.
The belt drive motor 160 and the like constitute a moving device. The belt drive motor 160 is constituted by an inverter motor, and the bell) 58.64 is the pitch between the many storage sections 28 of the magazine 22 (magazine 2
The belts 58 and 64 move smoothly and impact the printed circuit boards 30 stored in the magazine 22. is not allowed.

Further, the pulleys 56, 62 and belts 58, 64 are both timing pulleys and timing belts, and can be moved accurately by a predetermined amount, allowing the amount of movement of the magazine 22 to be controlled with high precision, and when using a chain. It has the advantage of providing smoother feed compared to other methods.

The magazine support member 70 attached to the belt 58 that is fed as described above is provided with a dog (not shown), and the magazine supply space detection switch 1 is installed at a fixed position.
76 (see FIG. 13).

Magazine supply space detection switch 176
This switch detects that a space into which the magazine 22 can be carried is created between the lower surface of the magazine 22 transported by 8.64 and the upper surface of the second supply conveyor 20. The magazine 22 can be carried into the magazine transfer position 1 if there is sufficient space between the lower surface of the magazine 22 being conveyed by the belt 58, 64 and the second supply conveyor 20 to carry the magazine 22 therein. has occurred and the magazine support member 7 currently supporting the magazine 22
The magazine support member 70 next to 0 is the second supply converter 20
It is necessary to position it lower, or on the side of the belt 58, 64 that does not support the magazine 22 (return side). In the belt movement path, there are positions that satisfy these conditions over a certain range, and the magazine supply space detection switch 176 and the dog are provided so as to continuously emit an ON signal while the magazine support member 70 passes through this certain range. It is being The magazine supply space detection switch 176 and the dog constitute space detection means.

A magazine support member 70 is mounted upward from the magazine supply device 12.
As shown in FIG. 1, a printed circuit board extrusion cylinder 180 is provided at a position separated by a distance greater than the arrangement interval. This position is the printed circuit board feeding position, and the piston loft 182 of the printed circuit board extrusion cylinder 180
A push-out member 184 is fixed to the tip of the push-out member 184, which pushes the printed circuit board 30 positioned at the printed circuit board supply position and supplies it to the electronic component mounting apparatus. A printed circuit board detection sensor 186 (see FIG. 13) is provided along the path along which the printed circuit board 30 moves due to this extrusion, and detects the printed circuit board 30 based on the presence or absence of reflected light.

Further, the magazine ejecting device 16 is provided above the printed circuit board supply position. Before the uppermost storage section 28 of the next magazine 22 supported by the belt 58, 64 reaches the printed circuit board supply position, the magazine ejection device 16 removes the magazine 22 that was previously supplying the printed circuit board 30.
The magazine ejecting position is located below the lower end surface of the magazine 22, and the position where the lower end surface of the magazine 22 is slightly higher than the upper surface of the magazine ejecting device 16 is the magazine ejecting position. At the magazine ejection position, there is a magazine ejection position detection switch 1 for detecting that the magazine support member 70 has reached the magazine ejection position.
87 (see FIG. 13) is provided, and the magazine support member 7
0 stops at the magazine ejection position.

The magazine discharging device 16 is connected to the magazine supply conveyor 1.
It has a pair of discharge conveyors 188 that move in a direction parallel to 8.20 and are spaced apart in a direction perpendicular to the direction of movement, and these discharge conveyors 188 are driven by a discharge conveyor drive motor 189 (see FIG. 13). Driven. Additionally, a magazine pulling device 19 is provided between these discharge conveyors 188.
0 is set. The magazine retracting device 190 includes a magazine retracting cylinder 192 and a retracting tool 194. As shown in FIG. 12, the bracket 196 of the retracting tool 194 is fixed to the tip of the piston loft 198 of the magazine retracting cylinder 192, and is formed with a T-shaped groove 200 opening on the top surface. An engagement member 202 is rotatably mounted by a shaft 204 and biased to protrude from the groove 200 by a compression spring 206 . Therefore, piston loft 198
In the contracted state, the retaining member 202 has its free end biased by the compression spring 206 so that the bracket 19
However, when the piston loft 198 is extended and reaches the magazine 22, the retaining member 202
The upper surface is pressed against the lower surface of the magazine 22, and the compression spring 206
It is rotated against the biasing force of the magazine 20 and accommodated in the groove 200, so that the lower part of the magazine 22 can be viewed. When the retaining member 202 is made to protrude to the opposite side of the magazine 22 from the retraction cylinder 192, it is made to protrude from the groove 200 by the biasing force of the compression spring 206 and engages with the side surface of the magazine 22. In this state, the piston rod 198 is contracted, thereby drawing the magazine 22 onto the discharge conveyor 188.

An electronic component mounting apparatus to which a printed circuit board 30 is supplied by the printed circuit board supply apparatus configured as described above will be briefly described. This electronic component mounting apparatus is capable of receiving two printed circuit boards 30 at a time. The electronic component mounting equipment includes a lift table that is movable between a printed circuit board receiving position set at the same height as the printed circuit board supply position and an electronic component mounting position below the same height, and a vertical table that is movable at the printed circuit board receiving position. It has a horizontal table that is movable in the direction,
The printed circuit board 30 pushed out from the magazine 22 is placed on an elevating table, and is moved to an electronic component mounting position due to its obstruction, where it is subjected to predetermined processing. During this time,
The horizontal table is moved to the printed circuit board receiving position to pick up the next printed circuit board. After the printed circuit board 30 has been mounted with electronic components, it is raised to the printed circuit board receiving position by the lifting table, and then pushed out to the magazine 22 side by the printed circuit board extrusion device. The printed circuit board placed on the horizontal table is transferred to the elevating table and moved to the electronic component mounting position without waiting for the supply of the printed circuit board 30, and the printed circuit board 30 is supplied without waste.

This magazine supply/discharge device consists of a control device 2 shown in FIG.
10. This control device 210 is a CPU
212. ROM214. RAM 216 and bus 218
It is mainly a computer with a bus 2
18 is connected via an input interface 220 to an electronic component mounting apparatus control device 224 . First and second magazine detection sensors 32.34. Magazine supply space detection switch 176, printed circuit board detection sensor 186. A magazine discharge position detection switch 187 and a magazine upward end position detection switch 228 are connected.

The magazine rising end position detection switch 228
This switch detects the upper end position of No. 2, that is, the position when the lowermost storage section 28 of the magazine 22 moves to the printed circuit board supply position.

An output interface 236 is further connected to the bus 218, and an electronic component mounting apparatus control device 214 is connected thereto.
6, 248, respectively, to feed conveyor drive motors 23, 24 . Belt drive motor 160. Printed circuit board ejection cylinder 180, magazine retraction cylinder 192.
A discharge conveyor drive motor 189 is connected. R.A.
M206 has F,,F, as shown in FIG.

F3 flags 254, 256, 258 and counter 26
0 is provided along with working memory. Also, R
The OM 204 stores various routines necessary for supplying printed circuit boards, such as a printed circuit board supply routine shown in flowcharts in FIGS. 15 and 16, and a magazine supply routine shown in a flowchart in FIG. 17. These printed circuit board supply routine and magazine supply routine are executed in several milliseconds by computer time-sharing control.
are executed alternately. In principle, the magazine 22 also includes printed circuit boards 3 in order from the top storage section 28.
0 is stored, but the printed circuit board 30 is not necessarily stored in all the storage sections 28, and the printed circuit board 30 may be stored in all but a few storage sections 28 at the bottom. . In addition, when an operator pulls out the printed circuit board 30 from the magazine 22 for inspection or the like, an empty space may be created in the storage section 28, but as a general rule, the number of printed circuit boards 30 that can be pulled out is one per magazine 22. When the removed printed circuit board 30 is returned to the magazine 22, it is returned to an empty storage section 28 on the lower side of the magazine 22. In this printed circuit board supply routine, if a situation occurs twice in which there is no printed circuit board 30 and the printed circuit board 30 is not pushed out even though the printed circuit board extrusion cylinder 180 performs the extrusion operation, the magazine 22 is is a printed circuit board 3 on which electronic components have not yet been mounted.
It is determined that there are no more 0's and the magazine 22 is ejected.

First, a case where printed circuit boards 30 are stored in all the storage sections 28 of the magazine 22 will be described. After the power is turned on, if the start switch is pressed, step 31 (hereinafter abbreviated as Sl. The same applies to other steps) of the printed circuit board supply routine is executed, and a check is made as to whether or not the magazine 22 is at the magazine transfer position. A determination is made. This determination is made based on whether or not the second magazine detection sensor 34 detects the magazine 22.
38 is executed and the magazine 2 is placed on the first supply conveyor 18.
2 is present or not.

This determination is made when the first magazine detection sensor 32
If the magazine 22 is present, S39 is executed, and the first and second supply conveyors 18.20
is driven and transported to the magazine transfer position. Further, if there is no magazine 22, a magazine request signal is outputted to the magazine supply unit at 540.

If the magazine 22 is supplied to the magazine transfer position, Sl becomes YES, and the magazine 22 is raised in S2, and as shown in FIG. 18(a), the printed circuit board stored in the uppermost storage section 28 is 30a is moved to the printed circuit board supply position, and F, ~F3 flag 2
54 to 258 are turned off, and counter 260 is cleared. Although FIG. 18 shows a state in which six printed circuit boards 30 are stored in the magazine 22, in reality, several dozen printed circuit boards 30 are stored. In addition, in the figure, the solid line indicates that the printed circuit board 30 is stored in the storage section 28,
The broken line indicates that the electronic component mounting device is being supplied and not stored in the storage section 28, the arrow pointing to the right indicates that the printed circuit board 30 is being supplied, and the arrow pointing to the left indicates that the printed circuit board 30 is being supplied.
Indicates a return of 0.

After the magazine 22 is moved, S3 is executed to operate the printed circuit board ejecting cylinder 180, and the printed circuit board 3 is
After 0a is pushed out to the electronic component mounting apparatus, it is determined in S4 whether or not the printed circuit board 30 is present. It is not always the case that the printed circuit board 30 is stored in the storage section 28 positioned at the printed circuit board supply position, and the printed circuit board detection sensor 186 detects the printed circuit board within a predetermined time after the printed circuit board extrusion cylinder 180 starts extrusion. Determination 34 is made depending on whether or not 30a is detected.

Now, the printed circuit boards 3 are installed in all the storage areas 28 of the magazine 22.
0 is stored, S4 becomes YES, and in S7, the magazine 22 is raised by one pinch (a distance equal to the installation interval of the storage sections 28), and is stored in the next storage section 28 as shown in Fig. 18 et al. After the printed circuit board 30b is positioned at the printed circuit board supply position, S8 is executed to push out the printed circuit board 30, and the second storage section 28 becomes empty as shown in FIG. 18(e).

Next, S9 is executed and it is determined whether or not the F1 flag 254 is ON, but since the F1 flag 254 is OFF in S2, the determination is NO when S9 is executed for the first time, and S10 At F, after the flag 254 is turned ON, it is determined whether or not the printed circuit board 30 is present at Sll. This determination is made in the same way as S4, and since there is a printed circuit board 30, Sll is Y.
It becomes ES, S12 is executed, and F! Flag 256 is O
A determination is made as to whether it is N or not. When it is determined that the printed circuit board 30 is stored in the storage section 28 of the third or lower stage, the FZ flag 256 is used to determine whether or not there was a state without a printed circuit board before that. Therefore, the F2 flag 256 is turned ON the first time a state in which there is no printed circuit board 30 occurs, but here it is turned OFF in S2, and the state in which there is no printed circuit board is detected before S12 is executed. F because it has not even occurred
2 flag 256 is OFF, S12 becomes No, 314 is executed, magazine 22 is lowered by 1 pitch,
It will be done. As a result, as shown in FIG. 18(d), the printed circuit board 30a is first supplied to the electronic component mounting apparatus, and the empty uppermost storage section 28 is repositioned to the printed circuit board supply position, and the electronic component mounting apparatus Waiting for the printed circuit board 30a that has been processed to be returned. In S15, it is determined whether the printed circuit board 30a has been returned. This determination is performed on the printed circuit board 30 in the electronic component mounting apparatus.
is pushed toward the magazine lifting device 14,
After starting the extrusion, the printed circuit board detection sensor 17
6 detects the printed circuit board 30 and determines whether a predetermined period of time has elapsed. If the printed circuit board 30a is returned to the storage section 28, S15 becomes YES, S16 is executed, and as shown in FIG.
After the third stage printed circuit board 30C is positioned at the printed circuit board supply position by being raised in pitch, it is determined in S17 whether or not the magazine 22 has reached the upper end position. Since the magazine 22 has just started supplying the printed circuit boards 30 and has not yet reached the rising end position, 317 becomes No, and the execution of the routine returns to S8.

Then, as shown in Fig. 18), the third storage section 28
After the printed circuit board 30c housed inside is pushed out,
When S9 is executed, the F1 flag 254 is turned ON in SIO, so the determination is YES, and 31B
is executed and a determination as to whether or not the printed circuit board 30c is present is executed in the same manner as S4. Now, since there is a printed circuit board 30c, 318 is YES and 312 is executed.
This judgment also becomes YES, and at 514 the magazine 22
is lowered by one pitch, and as shown in FIG. 18(8), the storage section 28 in which the second stage printed circuit board 30b is stored is positioned at the printed circuit board supply position, and the printed circuit board 3
Wait for 0b to be returned. If the printed circuit board 30b is returned, S15 becomes YES and 816 is executed, the magazine 22 is raised by two pitches, and the fourth stage printed circuit board 30d is positioned at the print/M board supply position.

In this way, by repeating the positioning of the printed circuit board 30 to the supply position by raising the magazine 22 two pitches, and the positioning of the empty storage space to the supply position by lowering the magazine 22 one pitch, the printed circuit board 30 is moved from the magazine 22 to the supply position. The printed circuit board 30 is supplied to the electronic component mounting apparatus, and the printed circuit board 30 on which the electronic component is mounted is returned to the magazine 22.

If the printed circuit board 30f stored in the lowermost storage section 28 is positioned at the printed circuit board supply position as shown in FIG.
326 in the figure is executed. At 326, the printed circuit board 30f is pushed out as shown in FIG. It was lowered one pitch, as shown in Figure 18 (
As shown in j), the storage section 28 one level above the lowest stage is positioned at the printed circuit board supply position and waits for the printed circuit board 3°e to be returned. 3 if the printed circuit board 30e is returned.
29 becomes YES, and then 330 is executed to raise the magazine 22 by one pitch, and as shown in FIG. It will be waiting for your return. As shown in FIG. 18 (1), if the printed circuit board 30f is returned, S31 becomes YES, and all the printed circuit boards 30 stored in the magazine 22 have been supplied to the electronic component mounting apparatus and have been subjected to the predetermined processing. , 332 are executed,
Magazine 22 is ejected. First, the magazine 22 is raised and moved to the ejection position. At this time, the magazine 22 is moved to the ejection position at high speed instead of being moved in pitch as when the printed circuit board 30 is supplied. Then, if it is moved to the ejection position, the retraction cylinder 19
2 is actuated and drawn onto the discharge conveyor 188.

As described above, while the magazine 22 is repeatedly raised and lowered to supply the printed circuit board 30 to the electronic component mounting apparatus, the re-magazine supply space detection switch 176 is turned ON due to the rise of the magazine 22. As a result, the judgment of 5IOI in the magazine supply routine becomes YES, and 5102
In step 5101, it is determined whether the magazine 22 is moving rapidly, that is, whether it is moving to the ejection position.

When the number of printed circuit boards 30 stored in the magazine 22 is small, the magazine 22 moves to the ejection position before turning on the magazine supply space detection switch 176 by rising at every pitch for supplying the printed circuit boards. However, in this case, the next magazine 22 is not fed. Since the movement of the magazine 22 to the ejection position is performed at high speed, if the next magazine 22 is supplied at this time and sent together,
This is because when the magazine support member 70 comes into contact with the magazine 22, the impact is large and vibrations are applied to the printed circuit board 30, which is undesirable.Furthermore, if the number of printed circuit boards 30 stored in the magazine 22 is small, then Normally, different types of printed circuit boards are supplied by the magazine 22, and there is no need to supply the next printed circuit board 30 following the supply of the previous printed circuit board 30 by the magazine 22. This is because there is no problem in supply efficiency even if the next magazine 22 is supplied after discharging one magazine 22.

At present, the magazine 22 stores all the storage areas 28 and 30, and the magazine supply space detection switch 176 is turned on during supply to the electronic component mounting apparatus.
Therefore, 5102 becomes NO, and it is determined in 5103 whether or not there is a magazine 22 on the first supply conveyor 18.

51 if the magazine 22 is on the first supply conveyor 18
04 is executed, the first and second supply conveyors 18.20 are driven, and then the magazine 2 supplies the printed circuit board 30.
2 is carried into the magazine transfer position. On the other hand, if there is no magazine 22 on the first supply conveyor 18, 5103
becomes No, and in 5105 a magazine request signal is output to the magazine supply unit.

If the next magazine 22 is carried into the magazine transfer position while the printed circuit boards 30 are being supplied by the magazine 22 in this way, this magazine 22 will support the magazine 22 that is currently supplying the printed circuit boards 30. It is lifted by the magazine support member 70 next to the magazine support member 70 currently in place. When the magazine supply space detection switch 176 is turned ON, the next magazine 22 is carried into the magazine transfer position, but each magazine support member 70 does not hold the next magazine 2 until the magazine 22 has been carried in.
2. The eels are eeled at intervals that do not touch each other. The length of the belt 58.degree. 64 is selected to provide such an interval. Therefore, the magazine support member 70 does not lift the magazine 22 while the magazine 22 is being carried to the transfer position, and the magazine 22 does not tilt or a mistake occurs in lifting. In addition, the magazine support member 7
Since a shock absorber is provided in the support part 76 of the magazine 22, the impact when the magazine support member 70 comes into contact with the magazine 22 is small, and the electronic components mounted on the printed circuit board 30 in the magazine 22 are prevented from shifting. etc., are prevented from occurring. The magazine 22 lifted by the next magazine support member 70 in this way is raised and lowered together with the previous magazine 22. Therefore, when the previous magazine 22 finishes supplying printed circuit boards 30, the next magazine 22 is moved to the vicinity of the printed circuit board supply position, and immediately after the previous magazine 22 is ejected, the next magazine 22 starts supplying printed circuit boards. position, and the printed circuit boards 30 are efficiently supplied.

Next, a case will be described in which an empty magazine 22 is supplied due to some circumstance. In this case, when step 34 of the printed circuit board supply routine is executed, the determination is N
0, and in S5 the count value C of the counter 260
is increased by 1, the F2 flag 256 is set in S6.
is turned on.

Then, by executing S7 and 3B, the printed circuit board 30 stored in the second storage section 28 is pushed out, but since the printed circuit board 30 is not inserted, the determination in step 311 is No, and in step 323, the counter 260 is pushed out. The count value is incremented by 1 and becomes 2. Therefore, S24
The judgment becomes YES, step 532 is executed, and magazine 2
2 is ejected.

Next, create two empty storage areas 28 at the bottom end of the printed circuit board 30.
Let's explain the case where there is. In this case, after the first empty storage section 28 is positioned at the printed circuit board supply position and the extrusion operation is performed, steps 319 to S21 are executed, C=1 is set, and the F2 flag 256 is turned ON. be made into Then, when the lowermost storage section 28 moves to the printed circuit board supply position, S17 becomes YES, and 326. S
27 is executed, but 327 is No and S34 is Y.
ES and S35 become No, and the magazine 22 is ejected. If the printed circuit board 30 is not stored in the two storage sections 28 at the bottom, steps 314 and 315 are executed after it is determined that the printed circuit board 30 is not stored in the second storage section 28 from the bottom. Since the printed circuit board 30 that was last supplied to the electronic component mounting apparatus is returned to the magazine 22, the magazine 22 is immediately ejected when it is determined that there is no printed circuit board 30 for the second time. -ing

If there are three or more empty storage sections 28 at the lower end of the magazine 22, C=2 before the magazine upper end position detection switch 228 is turned ON, and S20 is YES, 322
is No, 332 is executed, and the magazine 22 is ejected.

If the printed circuit board 30 is not stored only in the storage section 28 at the bottom of the magazine 22, S17 becomes YES, S27 becomes NO, and 333 is executed, and the count value C of the counter 260 is increased by 1. After that, it is determined in S34 whether C=2. This determination is No, and S36. After the printed circuit board 30 that was last supplied to the electronic component mounting apparatus is returned to the magazine 22 by executing S37, 332 is executed and the magazine 22 is ejected.

Further, there is one or more storage sections 28 in which no printed circuit boards 30 are stored at the lower end of the magazine 22, and one of the consecutively stored printed circuit boards 30 is removed by an operator for inspection or the like. 3 if
4. Either Sll or S18 becomes NO and C=1, and S6. S21. The F2 flag 256 is turned ON in either S25. In this case, since the printed circuit board 30 is stored in the storage section 28 next to the storage section 28 from which the printed circuit board 30 was extracted, the printed circuit board 30 is then pushed out, and the printed circuit board 30 is
When a determination is made as to whether or not there is, the determination is YES.
312 is executed. And F2 flag 25
6 is ON, S13 is executed, F, flag 25
8 is turned ON. Therefore, later, the storage section 28 in which no printed circuit board 30 is originally stored is positioned at the printed circuit board supply position and the printed circuit board 30 is pushed out, not by the operator pulling it out, and C=2
When S20 becomes YES, S22 also becomes YES and 336. S37 is executed, and after the printed circuit board 30 that was last supplied to the electronic component mounting apparatus is returned to the magazine 22, the magazine 22 is ejected.

This printed circuit board supply routine determines that there is no printed circuit board 30 on which electronic components are not mounted in the magazine 22 when there are two storage sections 28 in which no printed circuit board 30 is stored, and ejects the magazine 22. However, C=2 occurs when there are two or more storage areas 28 in the lower end of the magazine 22 that do not originally store printed circuit boards 30 as described above, and when such storage areas When there is one or more 28, by the worker's sampling,
There are cases where the storage section 28 without the printed circuit board 30 occurs at the top or in the middle of the printed circuit boards 30 that are consecutively stored in multiple stages. In the latter case, in order to eject the magazine 22 without leaving the printed circuit board 30 in the electronic component mounting apparatus, it is necessary to raise the magazine 22 one pitch down after C=2 and wait for the printed circuit board 30 to return. It is necessary, but in the former case, when C=2, immediately ?
The can 22 can be ejected. F! .

The F3 flags 256 and 258 are provided to distinguish between the two cases where C=2 as described above, and to perform different processing in each case.

As is clear from the above explanation, in this example,
A portion of the ROM 214 that stores 5101 to 5104 and a portion of the CPU 212 that executes these steps are connected to the magazine supply device 12 based on the detection by the space detection means.
This constitutes a control means for supplying the magazine 22 to the magazine transfer position.

In the above embodiment, the printed circuit board 30 is supplied to the electronic component mounting apparatus and returned to the magazine 22 by repeatedly raising the magazine 22 by two pitches and lowering it by one pitch. However, for example, if the printed circuit board 30 is returned to the storage section 28 one step below the storage section 28 in which it was stored, the magazine 22
The printed circuit board 30 may be supplied and returned only by raising the board.

In addition, the printed circuit board 30 supplied to the electronic component mounting apparatus
It is not essential to return the printed circuit board to the magazine 22, and it may be ejected by a printed circuit board ejecting device provided on the electronic component mounting apparatus side.

Furthermore, in the above embodiment, the magazine support member 70
By providing a shock absorber in the support portion 76 of the belt 58.6, the shock generated when the magazine support member 70 supports the magazine 22 is suppressed.
If the magazine support member 70 comes into contact with the magazine 22 when the moving speed of the magazine 4 is low, the shock absorber can be omitted. When the belts 58, 64 are raised and lowered by one pitch, the velocity V' is small at the beginning and end and large in the middle, as shown in FIG. 19 for one pitch. Therefore, it is only necessary that the magazine support members 70 come into contact with the magazine 22 while the moving speed of the belts 58, 64 is small, and therefore a plurality of magazine support members 70 are carried into the printed circuit board supply position and the magazine transfer position. With respect to the lower surface of the magazine 22 that is being loaded, the stop position of the magazine support member 70 that is currently supporting the magazine 22 becomes the position where the printed circuit board 30 is positioned at the printed circuit board supply position, and then the magazine 22
The stop position of the magazine support member 70 supporting the magazine 22 immediately before it comes into contact with the magazine 22 is set so that it comes into contact with the magazine 22 before the speed of the next one-pitch movement exceeds V. be.

Furthermore, although the extrusion operation of the printed circuit board 30 was performed in the above embodiment, the printed circuit board 30
If there is no 0 twice, it is determined that there is no printed circuit board 30 with unmounted electronic components in the magazine 22,
Although the magazine 22 is ejected, it may be ejected when it is detected that the printed circuit board 30 is not present three or more times.

Further, in the above embodiment, the supply and discharge of the printed circuit board 30 and the magazine 22 are controlled and performed by the control device 210 mainly composed of a computer, but it may be performed by sequence control.

Another embodiment of the invention is shown in FIGS. 20-26. As shown in FIG. 20, the magazine type printed circuit board supply device of this embodiment has a magazine supply device 270. A magazine lifting device 272 and a magazine ejecting device 274 are provided. Magazine supply device 27
0 has the first and second chain conveyor 276.27
8 are provided and are driven by first and second conveyor drive motors 2B0.282, respectively, to convey the magazine 284 to the magazine lifting device 272. Note that the chains constituting the second and second chain conveyors 276 and 278 are made of plastic.

The frame 288 of the magazine lifting device 272 has a 21st
As shown in FIG. 22 and FIG.
0 and a driven shaft 292 are rotatably mounted around a rotation axis parallel to the magazine conveyance direction. Each of the drive shaft 290 and the driven shaft 292 has two drive pulleys 294. A driven pulley 296 is attached, and an endless chain 298 is wound around each pair of driving pulley 294 and driven pulley 296, respectively. Further, a drive shaft 300 and a driven shaft 302 are rotatably attached to the upper and lower ends of the other widthwise side of the magazine 284, respectively, and a pair of drive pulleys 304. Driven pulley 306
A chain 308 is wound around each of the four chains 298 and 308, and these four chains 298 and 308 are connected to the chain conveyor 2.
86. The drive shaft 290 includes a second
As shown in Figure 0, the reducer 310. Pulley 312.314
．． The rotation of the chain drive motor 318 is transmitted through the belt 316, and as shown in FIG. The rotation is transmitted so that the four chains 298.308 are moved synchronously, and the chain 2
The magazine positioning and holding device 326 attached to 98.308 is moved. In this embodiment, the chain conveyor 286. Pulley 312, 314, 320.
The chain drive motor 318 constitutes a moving device. Both chains 298 and 308 are made of steel, and O-rings are fitted to the pins that connect the many link plates to reduce noise during movement and to ensure smooth movement. be.

Furthermore, the movement of the chains 298, 308 is guided by guides 328 provided for each of the chains 298, 308, as shown in FIG. These guides 3
28 is inserted into four screw shafts 330 supported at both ends by the frame 288, and the chains 298 and 30
A nut is tightened and fixed to the screw shaft 330 at a position corresponding to 8. One pair of chains 29
8 and 308 are attached to the frame 28B so that the distance between them corresponds to the depth dimension of the magazine 284 (in the left-right direction in FIG. It is fixed to the screw shaft 330 in accordance with the above. Also,
The distance between the chains 298 and 308 (the distance in the width direction of the magazine 284) is also changed in accordance with the width of the magazine 284 by changing the fixing position of the frame 331 supporting the chain 308 to the frame 288.

Five sets of magazine positioning and holding devices 326 are provided on chains 298 and 308. Each magazine positioning and holding device 326 has a lower retaining member 332 that supports the magazine 284 from below, and an upper retaining member 334 that engages with the upper side surface of the magazine 284. Lower staff member 3
32 has a substantially L-shaped cross section as shown in FIG. 23, and has a length extending over each pair of chains 298, 308, as shown in FIG. Double-shaped bracket 3
It is attached by 38. chain 298,30
Among the pins 342 connecting the many link plates 340 that make up the link plate 8, the pin 342 to which the retaining members 332 and 334 are attached has both ends protruding long from the link plate 340, as shown in FIG. The lower engaging member 332 is attached to this protruding end portion in a bracket 338 so as to be rotatable around the axis of the pin 342. Further, as shown in FIG. 24, the upper retaining member 334 includes a mounting portion 346 and a retaining portion 348 that extends diagonally from the mounting portion 346 and then bends parallel to the mounting portion 346. It has a length of one pair of chains 29
As shown in FIG. 26, the chain 298.
It is rotatably attached to a pin 342 of.

As shown in FIGS. 20 and 22, a lower engaging member plate cam 360 and an upper engaging member plate cam 362 are provided on the outer sides of each pair of chains 298 and 308 in the magazine loading direction. There is. These plate cams 36
0,362 are inserted into the threaded shaft 330 together with the guide 328 that guides the movement of the chains 298, 308, and the lower engaging members 332.0 and 362 are respectively inserted by nuts. It is fixed at a position corresponding to the length of the upper engagement member 334.

The lower retaining member plate cam 360 has a chain of 298°308
The length of the magazine 2 is approximately from the upper end to the lower end of the magazine.
As shown in FIGS. 22 and 23, the lower end of the side surface on the 84 side engages with the lower retaining member 332 and rotates it toward the magazine 284, but there is A gap of 2.5 mm is created between the lower retaining members 332 and
A disengagement portion 366 is provided that prevents the magazine 284 from being engaged with the magazine 284. Further, on the upper side of the non-engaging part 366, the lower engaging member 332 is further rotated toward the magazine 284 side, and the gap with the side surface of the magazine 284 is set to 0.5 m.
A retaining portion 368 is provided for engaging the magazine 284 with the magazine 284 . The non-retaining portion 366 is the plate cam 3 for lower retaining member.
Among 60 magazines, magazine 2 was carried into the magazine transfer position.
84 (the lower end surface of the lower magazine 284 indicated by the two-dot chain line in FIG. 22) and has a fixed length extending above and below the position of the lower end surface of the magazine 84 (the lower end surface of the lower magazine 284 shown by the two-dot chain line in FIG. 22).

Further, the upper retaining member plate cam 362 has a length extending from approximately the upper end to the lower end of the chains 298, 308, like the lower retaining member plate cam 360, and as shown in FIG. It is provided closer to the chains 298, 308 than the mating member plate cam 360. As shown in FIG. 24, the side surface of the upper retaining member plate cam 362 on the magazine 284 side engages with the upper retaining member 334 and rotates it toward the magazine 284. By further rotating the upper retaining member 334 and the non-retaining portion 372 that does not engage with the magazine 284, the gap between the side surface of the magazine 284 is reduced to 0.5 Wm. 50 and a retaining portion 374 that substantially engages the magazine 284. As shown in FIG. 22, the upper retaining member plate cam 3
62, a portion from the lower end to a short distance above the upper end of the magazine 284 carried into the magazine transfer position is a non-retaining portion 372, and a portion above that is a retaining portion 374.

Furthermore, as shown in FIGS. 21 and 21, the magazine ejecting device 274 operates a pair of first and second chain conveyors 380 and 382, which are arranged at a distance from each other in the width direction of the magazine 284. have The chains making up these chain conveyors 380 and 382 are made of plastic and are driven by first and second conveyor drive motors 384 and 386, respectively, to eject the magazine 284. In addition, each pair of chain conveyors 3
Between 80 and 382 is a printed circuit board extrusion cylinder 38.
8 and a magazine retraction device 390 are provided.

These are the same as the printed circuit board ejecting cylinder 180 and magazine retracting device 190, and their explanation will be omitted.

In this magazine-type printed circuit board supply device, the magazine 284 is carried into the magazine lifting device 272, as in the case of the previous embodiment, and is moved to the printed circuit board supply position, where printed circuit boards are supplied to the electronic component mounting device. be exposed. The magazine 284 carried into the magazine transfer position is
As the chain 298°308 moves, the lower retaining member 33
2 is supported by engaging from below. Initially, when the lower retaining member 332 comes into contact with the magazine 284, 2.
Because there is a gap of 5 m, even if there is a slight deviation in the position of the magazine 284 in the width direction, the magazine 284 will not fit into the magazine 2.
Upper and lower retaining members 332 facing each other in the width direction of 84,
334, and is sandwiched from both sides. After the lower retaining member 332 comes into contact with the magazine 284, if it is raised a short distance, the upper and lower retaining members 332, 334 are respectively rotated toward the magazine 284, and the gap between them and the side surface of the magazine 284 is almost eliminated. Use this to accurately position it. The upper and lower retaining members 332 and 334 are kept in a position where they position and hold the magazine 284 until they reach the upper ends of the upper and lower engagement member plate cams 360 and 362 and are released from their engagement, and the magazine 284 is held in the upper and lower engagement member positions. Members 332, 334
Magazine ejection device 2 remains positioned and held.
It is discharged at 74.

In this way, the chain conveyor 72 is used to convey the magazine 284.
86, and upper and lower retaining members 332, 334 rotatably attached to the chains 298, 308.
The magazine 28 is rotated by plate cams 360 and 362.
By positioning and holding 4, the device can be constructed easily and at low cost.

In this embodiment, the spacing between the chains 298 and 308 in the width direction of the magazine 284 and the spacing in the magazine carrying direction are adjusted in advance according to the dimensions of the magazine 284 when the chains 298 and 308 are assembled to the frame 288. After assembly, no changes were made, but the chain 298°308, guide 328, and plate cams 360, 362 for upper and lower retaining members were attached to the frame using screw shafts, etc. so that their positions could be adjusted. , the interval may be adjusted manually or automatically according to the dimensions of the magazine 284.

In addition, the present invention can be implemented with various modifications and improvements based on the knowledge of those skilled in the art without departing from the scope of the claims.

[Brief explanation of drawings]

FIG. 1 is a front view showing a magazine-type printed circuit board supply device which is an embodiment of the present invention. FIG. 2 is a side view of the printed circuit board supply device, and FIG. 3 is a plan view. FIG. 4 is a perspective view showing a magazine used in the printed circuit board supply device. FIG. 5 is a sectional view taken along the line v--■ in FIG. 3, and FIG. 6 is a sectional view taken along the line Vl--VI. FIG. 7 is a side view showing a magazine support member provided in the magazine lifting device of the printed circuit board supply device;
FIG. 8 is a plan view, and FIG. 9 is a side sectional view. FIG. 10 is a front view showing a clamping tool provided on a belt constituting the moving device of the magazine lifting device;
Figure 1 is a side view (partial cross section). FIG. 12 is a front view (partially in section) showing the magazine retracting device. FIG. 13 is a block diagram showing the configuration of a control device that controls the printed circuit board supply device. FIG. 14 is a diagram conceptually showing the configuration of the RAM of the computer that forms the main body of the control device. 15 and 16 are flowcharts showing a printed circuit board supply routine stored in the ROM of the computer, and FIG. 17 is a flowchart showing a magazine supply routine. FIG. 18 is a diagram illustrating the supply of printed circuit boards by the printed circuit board supply device. FIG. 19 is a graph showing changes in speed when the magazine support member moves one pitch. FIG. 20 is a front view showing a magazine-type printed circuit board feeding device according to another embodiment of the present invention, and FIG. 21 is a plan view. FIG. 22 is an enlarged side view showing the lower part of the magazine lifting device of the magazine-type printed circuit board feeding device shown in FIG. 20. FIG. 23 is a side view showing the lower retaining member provided in the magazine lifting device of FIG. 22, and FIG. 24 is a side view showing the upper retaining member. FIG. 25 is a plan view showing the lower engaging member together with the plate cam, and FIG. 26 is a plan view showing the upper engaging member together with the plate cam. 12: Magazine supply device 14: Magazine elevating device 22: Magazine 30 niblint board 56: Boley 58: Belt
62: Pulley 64: Belt 70: Magazine support member 72: Magazine clamp device 96: Clamp tool 104: Clamp lever 128: Clamp tool 160
: Belt drive motor 176: Magazine supply space detection switch 21〇2 Control device 270: Magazine supply device 272: Magazine lifting device f 284: Magazine 2
86: Chain conveyor 312. 314: Pulley 318: Chain drive motor 320: Pulley 332
:Lower engagement member 334:Upper engagement member

Claims (1)

[Scope of Claims] A magazine supply device that supplies a magazine in which a plurality of printed circuit boards are housed in multiple stages to a magazine transfer position; and a magazine support member, the magazine support member being at the magazine transfer position. A printed circuit board feeding device comprising: a magazine lifting device that supports a magazine and raises the plurality of printed circuit boards by a pitch equal to a storage pitch of the printed circuit boards in the magazine to sequentially position the plurality of printed circuit boards at a printed circuit board supply position; The lifting device includes a plurality of the magazine support members arranged at intervals greater than the height of the magazine, and a moving device for moving the magazine support members along an annular path including a straight portion in the vertical direction. At the same time, the printed circuit board supply position is set at a position higher than the magazine supply device by a distance greater than the arrangement interval of the magazine support members, and the magazine is currently positioned at the printed circuit board supply position and is supplying printed circuit boards. and the magazine supply device,
A space detection means for detecting the occurrence of a space capable of accommodating the next magazine, and a control means for causing the magazine supply device to supply the magazine to the magazine transfer position based on the detection by the space detection means. A magazine-type printed circuit board feeding device featuring: