JP2002240911A - Printed board buffer stocker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printed board buffer stocker capable of stocking each printed board of a different width for a process adjustment in a carrying line of the printed board for carrying printed boards of different widths. SOLUTION: This stocker is provided with a pair of supporting means constituted of a fixed side 71 for making the printed board 51 have a horizontal attitude and supporting both end parts of the width direction and a movable side 72 advanced and retreated so that a facing interval to the fixed side 71 may be a prescribed interval and elevating/lowering means 79 and 86 for moving the supporting means to the positions of the carrying line of the printed board in the vertical direction and positioning the supporting means so as to move the plurality of supporting means in the vertical direction by the elevating/ lowering means 79 and 86.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of temporarily retreating a printed circuit board from a transfer line in the course of a conveyor transfer line in a printed circuit board assembly / manufacturing line, for example, in order to improve the efficiency of the process. The present invention relates to a printed board buffer stocker housed in a position.

[0002] A printed circuit board is mounted on a printed circuit board by connecting it to a circuit by performing solder printing, mounting electronic components on important points, soldering by melting solder, and the like. The printed board unit is manufactured through an inspection process. Most of such assembling and manufacturing processes are automatically performed sequentially while being conveyed by an automated conveyor line.

If the printed circuit boards are of the same type,
Although continuous assembly and manufacture may be sufficient, in the fields of electronics and communication devices, since various circuit functions are combined, the circuit configuration and the size of the printed circuit board are different. Even in the same production line, it is unavoidable that the processes become complicated, but if they are mixed by rationalization, the production efficiency is improved. As described above, the efficiency is further improved by arranging the printed board buffer stocker at a key point in the manufacturing line and adjusting the process.

[0004] Regarding a printed board buffer stocker,
The configuration will be briefly described with reference to the front view of FIG. 16, the plan view of FIG. 17, and the side view of FIG. In the plan view of FIG. 17, the front side is the front side, and the side view of FIG. 18 shows a state viewed from the right side in FIGS. 16 and 17. In each of the drawings, the main parts of the internal configuration are shown by solid lines to facilitate understanding.

[0005] This printed board buffer stocker 1
The printed circuit board comprises a printed circuit board introduction section 2 on the left side and a printed circuit board stock section 3 on the right side.
In the figure, the light is introduced from the left side in the figure and is sent out to the right side in the direction of the arrow.

In the following description, the direction in which the paper is fed into the printed circuit board introduction section is referred to as upstream, and the direction in which the paper is fed from the printed circuit board stock section is referred to as downstream.

The printed circuit board introduction section 2 is provided with parallel belt-like belts for supporting and moving both sides in the width direction of the printed circuit board introduced in a horizontal posture, and one of the belts is fixed in position. However, the other is movably provided so as to be able to move parallel to the fixed side and change the width of the opposing interval, so that the width of the printed circuit board is reduced by moving in this way. A belt conveyor whose position can be set accordingly is provided.

In order to move the movable belt,
The belt is moved by the feed screw 6 that is linked to the motor 5 for changing the width. Of course, the rotation speed of the motor 5 is controlled by a control means (not shown) so as to be set at a predetermined belt position.

In the middle part of the belt conveyor, a pushing pusher 7 composed of an air cylinder for pushing a printed circuit board into the printed circuit board stocking section 3 and air for pushing out from the printed circuit board stocking section 3 to a downstream belt conveyor in the next process. An extrusion pusher 8 composed of a cylinder;
Is provided.

A fixed support member 11 and a movable support member 12 as printed circuit board support means are provided in the printed board stock section 3 in parallel in opposition to each other, and the movable support member 12 is a motor for varying the width. 13 is moved by a feed screw 14 which is rotated in conjunction with 13. The printed board supporting means is configured to be moved up and down by an elevating motor 15 for moving the printed board supporting means in the vertical direction, and to be stopped at an arbitrary predetermined position designated.

The board width is detected from the data of the printed board moved from the upstream side, the movable supporting member 12 of the printed board supporting means is moved, and the distance between the movable board supporting member 11 and the fixed supporting member 11 is set to the width of the printed board. By setting it to be suitable, the printed circuit board supporting means can support the printed circuit board in a horizontal state.

[0012]

2. Description of the Related Art FIG. 19 is a plan view showing a main part of a conventional printed circuit board buffer stocker 1, mainly showing a printed circuit board accommodation section 16 of a printed circuit board stocking section 3. FIG. FIG. 20 shows a side sectional view of the central portion.

In the figures, electric wires and cables are not shown because they are complicated. This is the same in the following drawings.

On a lower horizontal substrate 17, vertical wall surfaces 18 and 19 are erected in parallel in the front-rear direction. This wall 1
Feed screws 21 and 22 supported by upper and lower bearings at the central portion are provided in 8 and 19 so as to penetrate in the front-rear direction.

The lower feed screw 22 is provided with toothed pulleys 23 and 24 at both ends thereof, and the upper feed screw 21 is provided with a toothed pulley 24 at only one end thereof. A toothed belt 25 known as a timing belt is stretched between the attached pulleys 24, 24. A tension pulley 26 is provided in the middle of the tension pulley 26 to adjust the tension to an appropriate state in order to eliminate play in the forward and reverse rotation of the toothed belt 25.

A motor 13 for varying the width is mounted on the lower surface of the substrate 17. A toothed pulley 27 mounted on the output shaft and a toothed pulley 23 of the lower feed screw 22 are mounted.
The toothed belt 28 is also hung between them.

Therefore, the upper and lower feed screws 21 and 22 are rotated in the same direction and at the same rotational speed without slip or play in accordance with the rotation of the variable width motor 13 in the forward or reverse rotation direction. Becomes

Further, a cylindrical slide shaft 31 is vertically fixed to each of both end portions of the wall surfaces 18 and 19 in the left-right direction, and a total of four slide shafts 31 are fixed in parallel.
Nineteen intervals are also maintained.

As shown in FIG. 20, a fixed-side support member 11 is mounted and fixed to one of the inner surfaces of the wall surfaces 18 and 19 opposite to each other, and the movable-side support member 12 is mounted and fixed to a movable plate 32 by a metal mount. Have been.

As shown in FIGS. 21 and 22, the movable plate 32 is attached to and supported by a slide bush 33 made of a bearing alloy fitted to the slide shaft 31, and has a central portion shown in FIG. The screw bush 34 fitted to the upper and lower feed screws 21 and 22 shown in FIG.

With such a configuration, the movable plate 32 is moved in the front-rear direction by the screw bush 34 in accordance with the rotation of the feed screws 21 and 22 by the rotation of the width varying motor 13, whereby the movable-side support member is moved. 12 is also moved, but is moved forward and backward without being tilted by the slide bush 33 while maintaining a state parallel to the fixed-side support member 11.

As shown in FIGS. 19 and 20, the moving range can be set at an arbitrary interval from the reference numeral 12 indicated by the solid line position to the reference numeral 12 'indicated by the two-dot chain line.

Fixed side support member 11 and movable side support member 12
On the opposing surface, a large number of horizontal grooves 35 are formed symmetrically at equal intervals in the vertical direction.
Reference numeral 5 denotes a portion that supports both ends of the printed circuit board.

As shown in FIG. 19 and FIG. 21, the lower surface of the substrate 17 is attached to and supported by two elevating arms 36, and two elevating and lowering erects are provided in parallel. It is connected and supported by an elevating table 38 provided on a shaft 37.

An elevation feed screw (not shown), which is driven to rotate by the elevation motor 15 described with reference to FIG. 18, is also connected to the elevation table 38, and rotates the elevation motor 15 in the forward and reverse directions. , Whereby the support means is raised and lowered to an arbitrary predetermined position.

Reference numeral 41 shown in FIG. 19 is the fixed side of the conveyor belt provided in the printed circuit board introduction section 2, and similarly, reference numeral 42 is the movable side of the conveyor belt. The movable side conveyor belt 42 can also be set at any predetermined interval from the reference numeral 42 indicated by the solid line position to the reference numeral 42 'indicated by the two-dot chain line by the width varying motor 5 described in FIG. The distance to the fixed side is interlocked with the movable-side support means 12 of the support means, so that both are equal.

The operation of the printed circuit board stock unit 3 will be described with reference to the principle configuration diagram shown in FIG. Since FIG. 23 shows a schematic configuration, the coupling relationship is direct and indirect components are omitted, and the components corresponding to the above-described description have different specific shapes and the like. For ease of illustration, the same reference numerals are used.

An elevating motor 15 is mounted on a column 46 which stands upright on a base 45, and an elevating table 38 is connected to an elevating feed screw 47 arranged in parallel with the column 46 to thereby elevate the elevating table. Elevating table 38 by forward / reverse rotation of screw 47
Is raised and lowered. The rotation between the upper end of the elevating feed screw 47 and the output shaft of the elevating motor is transmitted by a toothed belt 48 hung on a toothed pulley attached to both ends.

The stationary support member 11 and the wall surface 18 are provided in parallel on the elevating table 38, and one end of feed screws 21 and 22 which penetrate the wall surface 18 and are parallel to the upper and lower portions thereof. It is rotatably supported by the support member 11.

To the other ends of the feed screws 21 and 22, toothed pulleys 23 and 24 are attached, and a toothed belt 25 is hung between them. The lower feed screw 22 is connected to the width varying motor 13.

A movable support member 12 is fitted between upper and lower feed screws 21 and 22 between the wall surface 18 and the fixed support member 11, and the fixed support member is rotated by rotation of the feed screws 21 and 22. 11 can vary in a parallel state.

The fixed-side support member 11 and the movable-side support member 12 are formed with symmetrical horizontal grooves 35 on the opposing surfaces thereof. Are fitted into and supported by the respective grooves 35.

In this way, the position of the concave groove 35 is raised and lowered to the position of the transport path, and the printed circuit board 51 from the upstream side is transported in multiple stages, for example, up to 40 Can be accommodated,
In accordance with the process procedure, the position of the concave groove 35 required again is moved up and down to the position of the transport path to perform alignment, and an arbitrary printed circuit board 51 is selected in the order required for the next step and sent out to the downstream transport path. Can be made.

Of course, the opposing interval of the supporting means can be set to an arbitrary interval by operating the width varying motor 13 according to the width of the printed circuit board.

[0035]

According to the above-mentioned printed board buffer stocker 1, a large number of printed boards 51 can be accommodated and stocked. Although it can be selected and sent out in the next step, since only the same board width can be stocked, if the board widths are different, all the contained printed boards 51 are sent out and the printed board introduction unit 2 In addition, after the width of the printed board stock unit 3 is adjusted to the changed position, the printed board 51 to be conveyed by issuing a request to the facility on the upstream side is accommodated. Also in this case, the substrate has the same width as a matter of course.

For this reason, although suitable for a manufacturing process having the same board width, it is difficult to cope with various manufacturing processes by transporting printed boards having different board widths in a mixed manner. Since multiple production lines are required depending on the requirements, it would be advantageous if a PCB buffer stocker that could handle multiple PCBs with different widths in a single production line was realized. is there.

It is an object of the present invention to provide a printed board buffer stocker which can cope with a plurality of different board widths.

[0038]

Means for Solving the Problems The first basic structure which is the gist of the means of the present invention for solving the problems is as follows.
A pair of support means comprising a fixed side supporting the printed circuit board in a horizontal position and supporting both ends in the width direction and a movable side advanced and retracted so that an opposing interval with respect to the fixed side can be a predetermined interval,
An interval adjusting means for positioning and moving the facing interval of the support means, and an elevating means for vertically moving the supporting means to the position of the transfer line of the printed circuit board and positioning, and the plurality of supporting means are moved by the elevating means. This is a printed board buffer stocker that is moved up and down.

According to the first basic constitution means, by providing a plurality of supporting means which are moved up and down by the elevating means, the opposing intervals of the plurality of supporting means are selectively set by the interval adjusting means. It becomes possible to support printed boards of different widths on the respective support means.

Further, each of the plurality of supporting means has a supporting portion for supporting a plurality of printed boards in a vertical state in parallel, so that a plurality of printed boards of the same width are supported and accommodated in the pair of supporting means. Can be done.

A second basic configuration of the means according to the present invention is that the printed circuit board is set in a horizontal posture, and the fixed side supporting both ends in the width direction thereof is moved forward and backward so as to be able to face the fixed side at a predetermined interval. A pair of supporting means on the movable side, elevating means for vertically moving the pair of supporting means to the position of the transport line of the printed circuit board and positioning, and a plurality of supporting means are moved vertically by the elevating means. The printed board buffer stocker includes a common interval adjusting unit that positions and moves the facing intervals of the plurality of supporting units in accordance with the movement.

According to the second basic constitution means, by providing a plurality of supporting means which are moved up and down by the elevating means, the facing intervals of the plurality of supporting means are selectively set by the common spacing adjusting means. Thus, it is possible to support the printed circuit boards having different widths on the respective supporting means by the one set of the spacing adjusting means in common with the vertical movement.

[0043]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the printed board buffer stocker according to the present invention based on the gist of the present invention will be described below in detail with reference to the drawings. It is to be noted that the same portions are denoted by the same reference numerals for the sake of convenience for easy understanding throughout the drawings.

1 is a front view, FIG. 2 is a plan view, and FIG. 3 is a side view. In the plan view of FIG. 2, the front side is the front side, and the side view of FIG. The state seen from the right side is shown. In FIG. 2, for the sake of easy understanding, a part of the cover is broken away and the main part of the internal structure is shown.

The printed board buffer stocker 61 is composed of a printed board introduction section 62 on the right side of FIG. 1 and FIG. 2 and a printed board stock section 63 on the left side. It is introduced and sent out in the direction of the arrow to the left. This is exactly the left and right reversed from the conventional one because of the installation of the manufacturing process line.

The printed circuit board introduction section 62 has belt-shaped belts 64 and 65 which rotate in parallel so as to support and move both sides in the width direction of the printed circuit board introduced in a horizontal posture.
The one belt 64 has a fixed position, while the other belt 65 has a solid line position with respect to the fixed side 64 as shown in FIG. It is movably provided so that the width of the opposing interval can be varied by moving in parallel so as to be closer to and away from the position of, and setting the position according to the width of the printed circuit board by moving in this way There is provided a belt conveyor that can be operated.

The printed circuit board 51 is at a position indicated by a horizontal two-dot chain line in FIG. 3, that is, a position where the printed circuit board 51 is supported and moved by a belt conveyor.

In order to move the movable side belt 65, the belt is moved by the width varying motor 66 and the feed screw. This is the same configuration as the conventional one. Further, a motor 6 for rotating and moving the belts 64 and 65 is provided.
7 are provided, but are rotated in conjunction with each other even when the opposing interval of the movable side belt 65 is being changed.

The intermediate portion of the belt conveyor has a function of selectively advancing and retracting to push the printed circuit board 51 into the printed circuit board stocking section 63, and a function of pushing out the printed circuit board stocking section 63 to the belt conveyor of the next process on the downstream side. A pusher 68 is provided, which is an air cylinder using compressed air and has a function of moving the belt conveyor. The pusher 68 is interlocked with the movement of the width of the belt conveyor and located at the center thereof.

As shown in FIG. 2, a fixed-side support member 71 and a movable-side support member 72 as printed-circuit board support means are provided in the printed board stock section 63 so as to face each other in parallel. The support member 72 is moved by a feed screw that is rotated in conjunction with the width changing motor 73. The printed circuit board supporting means is configured to be moved up and down by an elevating motor for moving the printed board supporting means in the up and down direction, and to be stopped at any specified position.

Printed circuit board 5 moved from upstream side
1, the movable-side support member 72 of the printed-circuit board support means is moved, and the fixed-side support member 71 is moved.
Is set so as to match the width of the printed board 51, the printed board 51 can be supported by the printed board supporting means.

FIG. 4 is a rear view of the elevating means accommodating portion 75 on the rear side shown in FIG. 2 as viewed from the rear side with a cover omitted, and FIG. 5 is a plan view with a top plate omitted. FIG.
Is shown in side view. Between the bottom plate 76 and the top plate 77, a vertically moving shaft 78 is provided in parallel with the left and right sides,
The upper and lower ends of the feed screw 79 are rotatably supported by bearings at the upper and lower ends at the center.
Is attached.

An elevating motor 81 is installed on the bottom plate 76 in a vertical position, and a toothed belt 83 is hung between an output shaft thereof and toothed pulleys 82 attached to a feed screw 79. ing.

A slide bearing 85 containing a slide bush is fitted to the left and right elevating shafts 78, 78. An elevating plate 86 having the slide bearing 85 is attached thereto. The screw bush 87 meshed with is mounted on the elevating plate 86. On the left and right of the front side of the lift plate 86,
Support arms 88, 88 projecting in the horizontal direction are provided.

Therefore, the lifting plate 86 is connected to the lifting motor 8.
By maintaining the correct posture by the forward and reverse rotation of 1 in FIG.
6, the position between the lower position shown by the solid line and the upper position 86 'shown by the two-dot chain line, and the upper position shown by the solid line and the lower position 86' shown by the two-dot chain line in FIG. Moved up and down.

FIG. 7 is a partial cross-sectional side view of the printed circuit board storage section 91 of the printed circuit board stock section 63. In FIG. 7, the left side is the front side, and the right side is the back (rear side). FIG. 8 is a rear view. Therefore, the left and right sides in the direction parallel to the paper surface of FIG. 7 are the front and rear surfaces, and the direction perpendicular to the paper surface, that is, the direction parallel to the paper surface in FIG.

A lower frame 94 is formed by combining a left and right frame member 92 disposed before and after the lower portion and a front and rear frame member 93 disposed on the left and right. An upper frame 97 is formed by combining a horizontal member 95 arranged in the front-rear direction and a connecting member 96 connecting the horizontal members in the front-rear direction.

The lower frame 94 and the upper frame 97 are connected and connected by a front vertical member 98 and a rear vertical member 99 which are connected at the front and rear central portions, and the front and rear both sides in the left-right direction are similarly connected. By connecting and connecting with the vertical member 101, a frame structure having the illustrated shape is formed.

At the same time, the vertical members 98, 10
9, fixed side support members 71 oriented in the horizontal direction are attached at three locations in the vertical direction by metal fittings. As shown in the side sectional view of FIG. Two sets of slide shafts 102 are fixedly attached to the front and rear longitudinal members 101 so as to be parallel to each other.

A feed screw 105 is rotatably supported on a bearing at a position deviated from the center and rotatably above the fixed side support member 71 of the front side vertical member 98 and the back side vertical member 99. The shafts at both ends protrude outward, and the variable-width motor 10 is mounted on the front side.
6 (73 in FIG. 2). Further, a feed screw 107 rotatably supported by a bearing at a position shifted in the opposite direction to the feed screw 105 is rotatably attached to the lower side of the fixed-side support member 71. , 107 are configured.

On the rear side of the rear vertical member 99, toothed pulleys 108, 108 are connected to the pair of feed screws 105, 107, respectively. The tension pulley 111 provided in the section appropriately keeps a loose state.

Further, a movable-side support member 72 is disposed and attached so as to face the fixed-side support member 71. Regarding this, referring to the rear view as viewed from the rear side in FIG. The movable side support members 72 in the direction are arranged in three places in the vertical direction. However, in FIG. 10, for convenience of explanation, an intermediate part is omitted and shown by a two-dot chain line.

At the center of the movable-side support member 72, a wide feeding metal fitting 112 is provided, and on both sides, a narrow guiding metal fitting 1 is provided.
13 is attached and fixed by metal fittings. Feeding bracket 1
A screw bush 114 is attached to the upper and lower portions of the pair of feed screws 1 at symmetrical positions deviated from the center.
05 and 107 are fitted. Guide bracket 113
A slide bush 115 is attached to the upper and lower portions of the slide shaft 102, and both are fitted on the slide shaft 102.

The fixed-side support member 71 and the movable-side support member 72 are provided with horizontal grooves 116 symmetrical to their opposing surfaces.
Are formed, and both ends of the printed circuit board 51 having a width matching the facing distance are fitted into and supported by the respective concave grooves 116.

With the above configuration, as shown in FIGS. 7 and 9, the rotation of the pair of feed screws 105 and 107 in the same direction by the forward and reverse rotation of the width varying motor 106 causes the movable side to rotate. The support member 72 can be moved from the position shown by the solid line to an arbitrary position between the position 72 'shown by the two-dot chain line, and can be tilted by the movement of the guide fitting 113 supported by the slide bush 115. Therefore, the parallel state with respect to the fixed-side support member 71 is reliably maintained.

As shown in FIG. 10, the position of the pair of feed screws 105 and 107 is shifted from the center to the symmetrical position because the feed screw 105 for moving the upper and lower movable side support members 72 is provided. It is possible to reduce the size of the apparatus by making the distance between the upper and lower movable side support members 72 close to the closest position while avoiding the upper and lower parts 107 and 107 including the bearing from overlapping each other.

From the above description, it is presumed that it has been understood that the fixed-side support member 71 and the movable-side support member 72
Are vertically configured in three sets, and each of these three sets can independently change the facing distance by a single operation of the width changing motor 106.

FIG. 11 is a side view showing a state in which the printed board accommodating portion 91 shown in FIG. 7 is mounted on the support arm 88 at the lowest position of the elevating plate 86 in the elevating means shown in FIG. Is shown in

The detailed description in FIG. 11 is omitted, and only the reference numeral is shown, so that the above description can be understood with reference to the drawings as necessary. Further, the position of the printed board housing portion 91 at the uppermost position where the elevating plate 86 is at the uppermost position is partially indicated by a two-dot chain line and indicated by reference numeral 91 '.

In FIG. 11, three sets of upper, middle, and lower printed circuit board support portions, each of which includes a fixed support member 71 and a movable support member 72, are formed. , Printed circuit board supporting parts A, B, C,
The symbols A, B, and C are assigned to the respective sections.

That is, the printed board supporting portion A has an interval width capable of accommodating the printed board 51A having the maximum width, and the printed board supporting portion B has an interval width capable of accommodating the printed board 51B having the minimum width. The portion C is set to have an interval width capable of accommodating the printed board 51C having an intermediate width. However, it goes without saying that the interval width can be set to any predetermined interval position as described above.

In order to accommodate the printed circuit board 51 conveyed from the upstream side in these printed circuit board supporting parts A, B, C, the printed circuit board introduction part 62 described with reference to FIGS.
The movable side belt 65 is moved to and away from the fixed side belt 64 to set it to a predetermined width position, and the printed circuit board supporting portion having a predetermined width to be housed by raising and lowering the printed circuit board housing portion 91 is moved to the belt conveyor 64. It is driven and matched to the 65 level positions by a command signal from the control device.

The printed circuit board 5 is inserted into the printed circuit board introduction section 62.
By being fed in, the leading end of the pusher 68 is engaged with the printed board 51 to extend and advance, so that the pusher 68 is fed into the concave groove 116 of the predetermined printed board supporting portion. In this way, the printed circuit board 51 having a predetermined width can be sequentially supported and accommodated in the printed circuit board supporting portion.

In response to a request to send out the printed circuit board 51 from the downstream device, the printed circuit board housing section 91 is moved up and down by a command signal from the control device, and the predetermined printed circuit board 51 is moved to the position of the belt conveyor on the downstream side. The positions of the accommodated printed circuit board accommodating portions are matched.

Then, the leading end of the pusher 68 of the printed circuit board introducing section 62 is engaged with the printed circuit board 51 to extend and advance the printed circuit board 51, thereby sending the printed circuit board 51 onto a downstream belt conveyor (not shown). in this case,
The width of the belt conveyor on the downstream side is matched in advance with the width of the printed circuit board 51 to be sent out.

The constituent materials of each member of the printed board buffer stocker are not shown individually, but are obtained by subjecting various known structural steel materials to appropriate rust prevention treatment, stainless steel materials, aluminum alloy materials, and copper alloy materials. It is composed of a combination of materials, synthetic resin materials, etc., and assembling and joining, etc., mainly assembles with screw parts because it guarantees precise mechanical configuration accuracy, and if necessary, Welding and riveting are used at key points.

The operation of the printed board stock section 63 in the above configuration will be described with reference to the principle configuration diagram shown in FIG. Since FIG. 12 shows a schematic configuration, the connection relationship is direct and indirect components are omitted. Although the components corresponding to the above-described description have different specific shapes and the like, it is understood. For ease of illustration, the same reference numerals are used.

An elevating motor 81 is mounted on a column 46 that stands upright on the base 45, and three sets of elevating tables 86 are mounted on an elevating feed screw 79 arranged in parallel with the column 46.
A, 86B, and 86C are connected, and the up / down tables 86A, 86B, and 86C are simultaneously moved up and down by forward / reverse rotation of the up / down feed screw 79. Between the upper end of the elevating feed screw 79 and the output shaft of the elevating motor 81, a toothed belt 83 hung on a toothed pulley attached to both ends.
Is configured to be rotationally transmitted.

The fixed support member 71 and the width varying motor 106
The movable-side support member 72 faces the fixed-side support member 71 in the meantime, and is disposed so as to be able to be moved toward and away from the fixed-side support member 71 while maintaining the parallel state. The movable-side support members 72 are configured to be independently moved by feed screws 107 provided in the respective members.

The fixed-side support member 71 and the movable-side support member 72
, Horizontal grooves 116 are formed at symmetrical positions on the opposing surfaces, and printed boards 51A, 51B, 51C having widths matching the opposing gaps are formed in the respective concave grooves 11.
6 is supported and accommodated.

As described above, the position of the concave groove 116 is moved up and down to the position of the conveying path, and the position is adjusted and sent.
1 according to the width of the substrate,
B and 86C can accommodate the number of grooves 116 corresponding to the number of the grooves 116 respectively in the printed circuit board housing portions, and the necessary positions of the grooves 116 are moved up and down again to the position of the transport path according to the process procedure. And any desired printed circuit boards 51A, 51B, 51C in the order necessary for the next process.
Can be selected and sent to the downstream transport path.

The spacing between the respective support means can be freely set to a predetermined arbitrary interval by operating the respective width varying motors 106 according to the command signal of the control device according to the width of the printed circuit board. That is, the number of sets of the support means is not limited to three steps,
It is also possible to set the number of 6 to an arbitrary number.

FIG. 13 is a side view of the principle construction of the printed circuit board storage section 121 in the printed circuit board stocker according to the second invention of the printed circuit board buffer stocker of the present invention, and FIG. 14 is a plan view thereof. .

This printed board buffer stocker has the same structure as that of FIGS. 1 to 6 and the description of the operation, and is the same as the printed board introduction section 62 and the lifting means accommodating section 75 in the printed board stock section 63. It is. The difference lies in the printed circuit board housing portion 91, the structure of which is shown in FIG. Therefore, the printed board housing section 91 is
The whole is constituted by replacing with. Since FIG. 13 shows a schematic configuration, the connection relationship is direct and indirect components are omitted.

An elevating motor 81 is mounted on a column 123 that stands upright on the base 122, and an elevating feed screw 79 arranged in parallel with the column 123 has an elevating stage 124.
And the elevator 124 is moved up and down in conjunction with the forward / reverse rotation of the elevation feed screw 79. The rotation between the upper end of the elevating feed screw 79 and the output shaft of the elevating motor 81 is conducted by a toothed belt 83 hung on a toothed pulley attached to both ends.

The fixed support member 12 is placed on the lift 124.
5 and the guide support plate 126 are erected in parallel, and the upper part is fixedly connected by a connecting member 127. The fixed-side support member 125 has a plurality of horizontal grooves 128 formed in multiple stages.

Guide holes are formed in multiple stages at both ends of the guide support plate 126, and guide shafts 132 attached to the rear sides of both ends of the movable support member 131 are fitted. Fixed side support member 125
Are supported so as to be movable in the near and far directions while maintaining the parallel state. The movable support member 131 is fixed to the fixed support member 12.
5 corresponds to the same position as the groove 128, and the same groove 1
28 are formed facing each other.

On the side where the guide shaft 132 protrudes from the back surface of the guide support plate 126, two support members 134 and 135 are erected on the base 122, and one support member 135 is provided.
Has a width variable motor 136 attached thereto, and a rotatable feed screw 137 supported by both support members 134 and 135 is attached to a toothed pulley attached to both the width variable motor 136 and the feed screw 137. It is rotated by the toothed belt 138 that has been hung.

FIG. 13 shows the central portion of the guide shaft 132 and the like on the near side in the drawing without illustration, and shows the relationship between the width varying motor 136, the feed screw 137 and the like for easy understanding.

Referring to FIG. 14, the fixed-side support member 12
5. The printed circuit board 51 supported by being fitted in the concave groove 128 by removing the upper surface of the movable-side support member 131 by being cut off.
Is shown.

The feed screw 137 has the movable arm 1 in the horizontal direction.
The central part of 41 is connected, and the movable arm 141 is moved in the axial direction according to the rotation of the feed screw 137. The movable arm 141 is set so that both ends are located at the distal end of the guide shaft 132 of the movable-side support member 131, and a retainer 142 that detachably holds the distal end of the guide shaft 132 is provided. ing.

The guide shaft 13 of the movable support member 131 is provided at both ends of the guide support plate 126.
There is provided a fixing device 143 for positioning and fixing so that 2 does not naturally move in the forward and backward directions.

The operation of the movable-side support member 125 together with the configuration of the retainer 142 and the fixing device 143 is described with reference to FIG.
Will be described with reference to FIG. In addition, as for the retainer 142 and the fixing device 143, a combination of only one side will be described with reference to FIG. 14, but the other is similarly operated simultaneously.

The retainer 142 is attached to the end of the movable arm 141 in FIG. 14, and when compressed air is sent from the air supply pipe 144 on the right side in the figure, a pair of opposing holding arms 145 approach to each other and the distal end. The holding claw 146 holds the small-diameter portion 147 of the guide shaft 132, and releases the air supply and eliminates the air pressure. Is restored.

As shown in FIG. 14, the support member 13
4 and 135, a slide shaft 148 is provided on the left and right of the upper portion, and the slide shaft 148 penetrates the holding arm 145 and is fitted, so that the holding arm 145 can move horizontally without tilting. It has become.

The fixing device 143 is provided at an intermediate portion of the bearing metal 152 on both sides of the through hole 151 with respect to the guide shaft 132 penetrating the guide support plate 126, in a direction perpendicular to the through hole 151 from the end of the guide support plate 126. From compression coil spring 15
Pressing shaft 154 that presses the surface of guide shaft 132 with 3
, The guide shaft 132 is prevented from moving. A friction member 155 having a large friction coefficient, such as hard rubber, is attached to the distal end surface of the pressing shaft 154. A ring-shaped engagement fitting 156 is attached to the outside on the opposite side of the pressing shaft 154.

[0097] On a support 157 standing upright from the base 122,
A release device 158 for releasing the fixed state of the fixing device 143 is provided. In the release device 158, the internal air cylinder is moved in the direction of the arrow by the compressed air being supplied through the air supply pipe 161. Thus, the ring-shaped engagement metal fitting 163 provided at the tip of the shaft 162
43, and is moved in the direction of the arrow.

When the pressing shaft 154 of the fixing device 143 is moved against the pressing force of the spring 153 in the direction of the arrow, the pressing shaft 154 is separated from the guide shaft 132 and can be freely moved. When the air supply to the release device 158 is cut off, the position is restored to the position shown in the figure by an internal spring, and a braking force is applied to the guide shaft 132 by the fixing device 143. Such an operation is simultaneously performed on the fixing device 143 on the other side of the guide support plate 126.

The printed circuit board housing 1 having the above configuration
The operation of the printed circuit board 21 will be described below. To accommodate the printed circuit board 51 conveyed from the upstream side in the printed circuit board housing section 121, the movable side belt of the printed circuit board introduction section 62 described with reference to FIGS. 65 is the fixed side belt 64
To a predetermined width position by moving the printed circuit board housing portion 121 up and down, and drive the drive unit to coincide with the level position of the belt conveyors 64 and 65 by a command signal from the control device to a position to be housed. .

As a result, the guide shaft 132 of the movable-side support member 131 is aligned on the same axis as the retainer 142, so that the width varying motor 136 is driven and the retaining claws 146 of the retainer 142 The holding claw 146 is engaged with the small-diameter portion 147 by operating the retainer 142 by setting the position to a state that matches the small-diameter portion 147.

At the same time, the release device 158 is also operated to pull the fixing device 143 in the direction of the arrow to release the braking state of the guide shaft 132, and to operate the width varying motor 136 to fix the position of the movable-side support member 131. The distance facing the side support member 125 is moved so as to match the width of the belt conveyor of the printed circuit board introduction section, and the release device 1 is moved.
58 is released, and the guide shaft 132 by the fixing device 143 is braked to fix the position. The retainer 142 is released, and the movable arm 141 is retracted by the width varying motor 136 to be in the retracted position and wait.

The printed circuit board 5 is inserted into the printed circuit board introduction section 62.
The printed circuit board 51 is fed into the recessed groove 128 of the printed circuit board supporting portion by engaging the leading end portion of the pusher 68 and extending and extending it by being fed.

As described above, the printed board 51 having an arbitrary predetermined width can be sequentially supported and accommodated in the printed board supporting portion.

In response to a request to send out the printed circuit board 51 from the downstream device, the printed circuit board housing section 121 is moved up and down by a command signal from the control device, and the predetermined printed circuit board 51 is moved to the position of the downstream belt conveyor. The positions of the accommodated printed circuit board accommodating portions are matched.

Next, the printed board 51 is sent out onto a downstream belt conveyor (not shown) by engaging the leading end of the pusher 68 of the printed board introducing section 62 with the printed board 51 and extending the same. in this case,
The width of the belt conveyor on the downstream side is matched in advance with the width of the printed circuit board 51 to be sent out.

As described above, the printed circuit boards 51 having an arbitrary predetermined width can be freely combined and accommodated or sent out.

Further, the distance between the plurality of movable-side support members 131 facing the fixed-side support member 125 and the fixed-side support member 125 is set to be equal to the width of the movable arm 141 serving as the common holding means 142 at the position of the transfer line. By the cooperative operation with the releasing device 158 for releasing the fixing device 143, each can be positioned as a common interval adjusting means.

The retainer 142 and the release device 15 described above
8 is operated by compressed air as a driving source, but is not limited to such a driving source. For example, it is of course possible to replace and operate by an electromagnet. That is.

(Supplementary Note 1) A pair of a fixed side that supports both ends in the width direction of the printed circuit board in a horizontal position and a movable side that is advanced and retracted so that the opposing interval with respect to the fixed side can be a predetermined interval. Means, an interval adjusting means for positioning and moving the opposing interval of the support means, and an elevating means for vertically moving and positioning the support means to a position of a transfer line of a printed circuit board, and the plurality of support means. A printed circuit board buffer stocker, which is moved up and down by lifting means.

(Supplementary Note 2) In the printed board buffer stocker according to Supplementary Note 1, the plurality of supporting means each include a supporting portion for supporting the plurality of printed boards in a vertically parallel state. Buffer stocker.

(Supplementary Note 3) A pair of support consisting of a fixed side that supports both ends in the width direction of the printed circuit board in a horizontal position and a movable side that is advanced and retracted so that an interval between the fixed side and the fixed side can be a predetermined interval. Means, elevating means for vertically moving the support means to the position of the transfer line of the printed circuit board for positioning, and a plurality of the support means are moved vertically by the elevating means and a plurality of support means in accordance with the movement A printed board buffer stocker, comprising: common interval adjusting means for positioning and moving the facing intervals.

(Supplementary Note 4) A pair of support consisting of a fixed side that supports both ends in the width direction of the printed circuit board in a horizontal position and a movable side that is moved forward and backward so that the opposing interval with respect to the fixed side can be a predetermined interval. Means, elevating means for vertically moving the pair of supporting means to the position of the transfer line of the printed circuit board and positioning, and a plurality of the supporting means being moved in the up and down direction by the elevating means to provide a plurality of supports in accordance with the movement. A common interval adjusting means for positioning and moving the opposing intervals of the means, and a releasable fixing means for maintaining a state in which the opposing interval of the movable-side support means with respect to the fixed side is set, respectively. Characterized printed circuit board buffer stocker.

(Supplementary Note 5) A pair of support consisting of a fixed side that supports both ends in the width direction of the printed circuit board in a horizontal position and a movable side that is advanced and retracted so that the opposing interval with respect to the fixed side can be a predetermined interval. Means, elevating means for vertically moving the pair of supporting means to the position of the transfer line of the printed circuit board and positioning, and a plurality of the supporting means being moved in the up and down direction by the elevating means to provide a plurality of supports in accordance with the movement. A common interval adjusting means for positioning and moving the opposing intervals of the means, a releasable fixing means for maintaining a state where the opposing interval of the movable side supporting means with respect to the fixed side is respectively set, and the interval adjusting means And a common release means for releasing the fixing means in response to the movement of the movable-side support means.

[0114]

As described above in detail, according to the printed board buffer stocker of the present invention, since a plurality of supporting means which are moved up and down by the elevating means are provided, the facing interval of each of the plurality of supporting means is adjusted. It is possible not only to selectively set by means and to allow each supporting means to support and accommodate printed circuit boards of different widths, but also to make each pair of supporting means portions support and accommodate a plurality of printed circuit boards of the same width. It is also possible.

Further, by providing a plurality of supporting means to be moved up and down by the elevating means, and by selectively setting the facing distance of each of the plurality of supporting means by a common spacing adjusting means, each supporting means is different. It is also possible to support a printed circuit board having a width by a common set of distance adjusting means along with the vertical movement.

As described above, a printed circuit board having a different width can be stocked for process adjustment and the like on a printed circuit board assembling, manufacturing, and transporting line on which printed circuit boards having different widths are transferred. Practical effects, such as the ability to sequentially send out the printed circuit boards in accordance with the requirements, are extremely remarkable.

[Brief description of the drawings]

FIG. 1 is a front view of a printed board buffer stocker according to the present invention.

FIG. 2 is a plan view of a printed board buffer stocker of the present invention.

FIG. 3 is a side view of the printed board buffer stocker of the present invention.

FIG. 4 is a rear view of the elevating means accommodating section.

FIG. 5 is a plan view of a lifting means accommodating portion.

FIG. 6 is a side view of a lifting means accommodating portion.

FIG. 7 is a side sectional view (part 1) of a printed circuit board accommodation section of the present invention.

FIG. 8 is a rear view of the printed circuit board housing section of the present invention.

FIG. 9 is a side cross-sectional view (part 2) of the printed circuit board housing section of the present invention.

FIG. 10 is an arrangement configuration diagram of a movable-side support member of the present invention.

FIG. 11 is a sectional side view of a main part of a first printed circuit board stock unit of the present invention.

FIG. 12 is a principle configuration diagram for explaining the operation of the first printed circuit board stock unit of the present invention.

FIG. 13 is a side view of the principle configuration diagram of the second printed circuit board stock unit of the present invention.

FIG. 14 is a plan view of the principle configuration diagram of the second printed circuit board stock unit of the present invention.

FIG. 15 is an operation explanatory view of the retainer and the fixing device with respect to the guide shaft of the movable-side support member.

FIG. 16 is a front view of a printed board buffer stocker.

FIG. 17 is a plan view of a printed board buffer stocker.

FIG. 18 is a side view of a printed board buffer stocker.

FIG. 19 is a plan view of a conventional printed circuit board stock unit.

FIG. 20 is a side sectional view (part 1) of a conventional printed circuit board housing portion.

FIG. 21 is a side sectional view (part 2) of a conventional printed circuit board accommodation portion.

FIG. 22 is a sectional front view of a conventional movable-side support member.

FIG. 23 is a principle configuration diagram for explaining an operation of a conventional printed circuit board stock unit.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 printed board buffer stocker 2 printed board introduction part 3 printed board stock part 5 variable width motor 6 feed screw 7 push-in pusher 8 push-out pusher 11 fixed-side support member 12 movable-side support member 13 variable-width motor 14 feed screw 15 Lifting motor 16 Printed circuit board housing 17 Substrate 18, 19 Wall surface 21, 22 Feed screw 23, 24 Toothed pulley 25 Toothed belt 26 Tension pulley 27 Toothed pulley 28 Toothed belt 31 Slide shaft 32 Movable plate 33 Slide bush 34 Screw bush 35 concave groove 36 elevating arm 37 elevating shaft 38 elevating platform 41 fixed conveyor belt 42 movable conveyor belt 45 base 46 support column 47 elevating feed screw 48 toothed belt 51 printed circuit board 61 printed circuit board buffer Stocker 62 Printed circuit board introduction part 63 Printed circuit board stock part 64 Fixed side belt 65 Movable side belt 66 Width variable motor 67 Motor 68 Pusher 71 Fixed side support member 72 Movable side support member 73 Width variable motor 75 Elevating means housing part 76 Bottom Face plate 77 Top plate 78 Elevating shaft 79 Elevating feed screw 81 Elevating motor 82 Toothed pulley 83 Toothed belt 85 Slide bearing 86 Elevating stand 87 Screw bush 88 Support arm 91 Printed circuit board housing part 92 Left and right frame members 93 Front and rear Frame member 94 lower frame 95 horizontal member 96 horizontal member 96 connecting member 97 upper frame 98 front vertical member 99 rear vertical member 101 vertical member 102 slide shaft 105 feed screw 106 motor for variable width 107 feed screw 108 toothed pulley 109 Toothed belt Reference Signs List 11 tension pulley 112 feed bracket 113 guide bracket 114 screw bush 115 slide bush 116 concave groove 121 printed circuit board housing 122 base 123 support 124 elevating platform 125 fixed side support member 126 guide support plate 127 connecting member 128 concave groove 131 movable Side support member 132 Guide shaft 134, 135 Support member 136 Motor for variable width 137 Feed screw 138 Toothed belt 141 Movable arm 142 Retainer 143 Fixed device 144 Air supply pipe 145 Retaining arm 146 Retaining claw 147 Small diameter portion 148 Slide shaft 151 Penetration Hole 152 Bearing metal 153 Compression coil spring 154 Pressing shaft 155 Friction member 156 Engagement fitting 157 Prop 158 Release device 161 Air supply pipe 162 Shaft 163 Engagement fitting

Claims (3)

[Claims] 1. A pair of support means comprising a fixed side for supporting both ends in the width direction of a printed circuit board in a horizontal posture and a movable side which is advanced and retracted so that an opposing interval with respect to the fixed side can be a predetermined interval. An interval adjusting means for positioning and moving the opposing interval of the supporting means; and an elevating means for vertically moving and positioning the supporting means to a position of a transport line of a printed circuit board, and elevating the plurality of supporting means. A printed board buffer stocker characterized by being vertically moved by means. 2. The printed circuit board buffer stocker according to claim 1, wherein the plurality of support means each include a support portion for supporting the plurality of printed circuit boards in a vertically parallel state. Stocker. 3. A pair of support means comprising a fixed side for supporting both ends in the width direction of the printed circuit board in a horizontal posture, and a movable side advanced and retracted so that an opposing interval with respect to the fixed side can be a predetermined interval. An elevating means for vertically moving the pair of supporting means to the position of the transfer line of the printed circuit board and positioning the plurality of supporting means; and a plurality of the supporting means being vertically moved by the elevating means, and a plurality of supporting means corresponding to the movement. A printed board buffer stocker, comprising: common interval adjusting means for positioning and moving the opposing intervals of each other.