JP6897016B2 - Sheet transport / loading equipment and sheet inspection / sorting equipment - Google Patents

Description

The present invention relates to a sheet conveying-stacking apparatus and a sheet inspection and sorting equipment.

As a device for transporting and loading sheets such as prepregs, the reject device (sorting device) changes the transport path by operating a part of the transport devices that make up the transport path, and transports the sheet to the nonconforming product stack (stage). , Loading. (See, for example, Patent Document 1).

However, in the above configuration, when the sheets are loaded, the surface of the sheet loaded first when the tip of the sheet to be transported next comes into contact with the surface of the sheet loaded first on the stage. Was sometimes hurt.

Therefore, in view of the above circumstances, an object of the present invention is to provide a sheet transport / loading device capable of transporting and loading a sheet without damaging the surface of the sheet.

In order to solve the above problems, according to one aspect of the present invention, a transport belt for transporting a sheet and a transport belt
A stack portion that is downstream of the transport belt in the transport direction of the sheet, is located below the transport belt, and sequentially loads the transported sheets, and includes a plurality of fans.
An airflow blowing means that sends an airflow in a direction substantially the same as the conveying direction of the conveying belt and lifts the tip of the sheet that is descending, and a means that inserts paper for each arbitrary number of sheets while loading a plurality of the sheets. wherein a flow control unit for adjusting the flow rate of the air flow of the air current blowing means comprises a, in the prior SL airflow blowing means, outlet of the plurality of air flow in the width direction of the sheet that is perpendicular to the conveying direction is provided, wherein The flow rate control unit adjusts the flow rate of the airflow in the airflow blowing means to be larger than when the sheets are conveyed one by one at the timing when the interleaving paper is loaded, and is sent from each outlet. to provide a sheet conveying-stacking apparatus, characterized in that the flow rate of the air flow pieces are separately adjustable.

According to one aspect, in the sheet transport / loading device, the sheet can be transported and loaded without damaging the surface of the sheet.

The whole view of the sheet inspection / sorting apparatus system which concerns on one Embodiment of this invention. The block diagram of the sorting apparatus included in FIG. The flowchart which shows the whole flow of this invention. Perspective view of the airflow blowing means. Exploded view of airflow blowing means. The figure which looked at the airflow blowing means from another angle. A block diagram of a part of a conforming product stacking device and a sorting device. Control block diagram related to seat characteristics. Perspective view of the nonconforming product stack. It is explanatory drawing of the taking-out state of a non-conforming product stack, (a) shows before pulling out a non-conforming product stack unit, and (b) shows after pulling out a non-conforming product stack unit. Perspective view of the conforming product stack. Another angle perspective view of the conforming product stack of FIG. The top view of the moving mechanism corresponding to the alignment part in four directions included in FIG. A schematic side view showing the loading state of the circuit board sheet in the conforming product stack.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

[Overall system configuration]
The present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of a sheet inspection / sorting device (system) 100 according to an embodiment of the present invention. The system 100 shown in FIG. 1 includes a sheet separation and supply device 110, an inspection device 120, a relay transfer device 130, a sorting device 140, and a conforming product stacking device 150.

The sheet separation supply device 110 supplies circuit board sheets (circuit board sheets) P one by one. The sheet separation and supply device 110 includes a supply sheet stack 10, a separation mechanism 12, and a sheet characteristic detection unit 13.

Here, the circuit board sheet P is, for example, a sheet for an electronic circuit board such as a prepreg. Circuit boards manufactured using scratched circuit board sheets will have problems with characteristics such as resistance, so care must be taken not to damage them when transporting the circuit board sheet. Become.

The prepreg may be one in which the base material is impregnated with the resin composition and then the resin in the impregnated resin composition is heated in a dryer to be semi-cured. The base material is, for example, a glass base material such as glass woven cloth, glass mat or glass paper, a synthetic resin base material formed of a woven cloth such as polyester fiber or aramid fiber or a non-woven fabric, or a paper base such as linter paper or kraft paper. Materials and the like can be used. As the resin used as the resin composition to be impregnated, for example, a resin conventionally used for producing a prepreg, such as an epoxy resin, a phenol resin, or a polyimide resin, can be used.

In the sheet separation and supply device 110, the separation mechanism 12 separates and conveys the circuit board sheet P by floating and holding and conveying it. The separation mechanism 12 that floats, holds, and conveys the circuit board sheet P (also simply referred to as a sheet) includes, for example, a drive roller, a driven roller, a transfer belt, a negative pressure air chamber, and the like. The negative pressure air chamber is sucked from the outside to maintain the negative pressure state, and the seat P located at the uppermost position in the stack is sucked by the suction holes provided in the transport belt. By floating and holding the sheets in this way, the sheets P are separated and conveyed one by one.

In the sheet separation and supply device 110, the sheet characteristic detection unit 13 measures the type, thickness, weight, unit weight, and the like of the sheet to detect the characteristics of the sheet. Alternatively, the sheet characteristic detection unit 13 may detect the performance of the sheet by reading a recognition bar code, a chip, or the like provided on the sheet P for the circuit board.

Alternatively, the sheet characteristics may be input and set by the operator without providing the sheet characteristic detection unit 13 for measuring the characteristics.

The supplied circuit board sheet P is inspected by the inspection device 120 from the front and back for foreign matter contamination and the like. Specifically, the inspection device 120 includes a transport belt 21 to 24 for transporting the circuit board sheet P to be inspected, a front surface inspection unit 25 for inspecting defects such as foreign substances, a resin content, and a resin curing degree, and a back surface. The inspection unit 26 is provided. Further, the inspection units 25 and 26 are connected to a determination unit 210 that determines whether the inspection item is within a predetermined range and a control unit 220 that sends an instruction signal to each device according to the result of the determination unit 210. There is.

For example, when the circuit board sheet P is a prepreg in which a glass base material is impregnated with an epoxy resin composition, the inspection units 25 and 26 use a light reflection method to inspect defects such as foreign substances and inspect the total resin content. In addition, a β-ray weight meter method, a discrimination method based on the difference in shading smoothness of surface irregularities by light reflection for inspection of the resin content on the front and back surfaces, and a light wavelength absorption type inspection machine for inspection of the degree of curing of the resin are used. Can be used.

In this system 100, the determination unit 210 has scratches or stains on the conforming circuit board sheet Pa in which the inspection items of the circuit board sheet P are as specified, and other quality that has been repelled by the inspection. The non-conforming product (rejected product, recyclable product) is discriminated from the circuit board sheet Pb. The non-conforming product includes a product that may be usable by a worker who corrects it by hand, and may include, for example, a case where a foreign substance or the like adhering to the surface can be manually corrected.

After passing through the inspection device 120, the circuit board sheet P is determined by the determination unit 210 to pass or fail (whether it is a conforming product or a non-conforming product) while the relay transport device 130 is being transported.

If the determination of the circuit board sheet P is passed, the sheet P is conveyed in the A direction by the selective transfer unit 47 in the sorting device 140, and is stacked on the conforming product stack (stack portion) 50 which is the loading tray of the conforming product stacking device 150. (Loaded).

When the inspection device 120 determines that the circuit board sheet P is a non-conforming product that does not conform to the predetermined standard, the selective transfer unit 47 is conveyed diagonally downward (B direction) by the selective drive motor M in the sorting device 140. It is rotated and moved (rotated) so as to face. Then, the circuit board sheet P is conveyed diagonally downward and loaded on the nonconforming product stack (stack portion) 48. Details of the sorting device 140 will be described later together with FIG.

The circuit board sheet P loaded on the conforming product stack (loading tray) 50 of the conforming product stack device 150 is used as a circuit board sheet in the circuit board manufacturing process.

As a result of separating and supplying the circuit board sheet P by such a system and inspecting whether foreign matter etc. is mixed from the front and back of the circuit board sheet P, the conforming product and the non-conforming product are sorted and separated from the middle. It is conveyed by a route and loaded onto the non-conforming product stack 48 or the conforming product stack (loading tray) 50. The above is an outline of the overall operation of the sheet inspection / sorting device (system) 100.

Immediately before the conforming product stacking device 150, the interleaving means 160 including the interleaving paper feeder 161 for interleaving the interleaving paper for each arbitrary number of sheets may be provided while the plurality of circuit board sheets are being loaded. Although the interleaving paper means 160 is shown above in FIG. 1, it may be provided on the side so as to be aligned with any of the devices in the sheet inspection sorting device 100. Alternatively, the step of arranging the interleaving paper means 160 may be at the latest upstream of the conforming product stacking device 150, and may be provided further upstream.

In the sheet inspection / sorting device (system) 100 of the embodiment of the present invention, the circuit board sheet is divided into two types, a conforming product and a non-conforming product, according to the inspection result, but there are three or more types of inspection results. It may be present, or it may be distributed into three or more types of stacks according to the inspection result. For example, it is conceivable to rank among conforming products and non-conforming products, or to classify according to the type of borderline between conforming and non-conforming products.

In this case, by providing two or more sorting devices 140 side by side, each sorting device includes a stack, and a conforming product stacking device is provided further downstream, so that the number of sorting destinations can be increased to three or more. Become. Alternatively, three or more types of sorting can be realized by providing a portion for selecting sorting and two or more stacks in one housing of the sorting device.

The sheet transport / loading device 190 composed of the sorting device 140 and the conforming product stacking device 150 (and the interleaving paper), which is a feature of the present invention, will be described below. The conforming product stack (loading tray) 50 of the conforming product stacking device 150 and the non-conforming product stack 48 serve as a stack portion in the sheet transport / loading device 190.

[Structure of sorting device]
FIG. 2 is a schematic configuration diagram of the sorting device 140. FIG. 3 is a flowchart showing the overall flow of the present invention.

The sorting device 140 includes a plurality of transport belts 41, 44, 45, 46 including transport belts (selective transport belts) 42, 43 included in the selective transport unit 47, a nonconforming product stack 48, and airflow blowing means 60, 70. ..

In FIG. 3, the circuit board sheet P is inspected for its sheet characteristics and separated (steps S1 and S2). In S1, the system may be set by inputting the characteristics of the seat by the operator instead of inspecting the characteristics of the seat.

After that, the product is conveyed to the sorting device (sorting device) 140 through the relay transport device 130 while passing through the inspection device 120 (S3) and performing the suitability / non-suitability determination process of the conforming product or the non-conforming product.

When the inspection device 120, the determination unit 210, and the control unit 220 determine that the product is conforming (Yes, S5 in S4), the selective transfer unit 47 that branches the transfer path is not moved from the horizontal state, and the transfer belt in FIG. 2 is not moved. The circuit board sheet P exists at the positions 42a and 43a and is conveyed in the direction of arrow A (S6). Then, after being blown by the first airflow blowing means 60 immediately before the conforming product stack (loading tray) 50 (S7), the airflow is dropped into the conforming product stack 50 of the conforming product stacking device 150 and loaded (S7). S8).

When it is determined that the product is non-conforming (No, S9 in S4), the selective transfer unit 47 for branching the transfer path is driven to the arrow B side by the selective drive motor (selection unit) M, and the transfer belts 42b and 43b in FIG. 2 The circuit board sheet P exists at the position and is conveyed in the direction of arrow B (S10). Then, after being blown by the second airflow blowing means 70 immediately before the nonconforming product stack (tray) 48 (S11), the airflow is dropped into the nonconforming product stack 48 and loaded (S12).

For details, refer to FIGS. 1 and 2, and in this system 100, as a loading device, a conforming product stack 50, which is an independent conforming product loading stage, and a recyclable product in the same housing as the sorting device 140 are used. It is provided with a nonconforming product stack 48 to be loaded.

The conforming product stack 50 is arranged immediately after the end of the conveyor belts 41 to 46, which are composed of a plurality of conveyors arranged in the same linear shape, and is loaded with a circuit board sheet Pa judged to be a conforming product by the inspection device 120 or the like. To do.

Further, the nonconforming product stack 48 is arranged below the arranged conveyors (conveyor belts 41 to 46) so that the selective transfer unit 47 can be connected when the traveling destination is tilted downward. .. The non-conforming product stack 48 is loaded with a circuit board sheet Pb determined to be non-conforming by the inspection device 120.

In the sorting device 140, when the selective transfer unit 47 is maintained horizontal based on the instruction signal from the control unit 220 after the determination, the conforming circuit board sheet Pa is conveyed to the connected transfer belt 46. On the other hand, when the selective transfer unit 47 tilts the traveling destination downward, the non-conforming product circuit board sheet Pb is transported to the non-conforming product stack 48, which is a loading stage for loading the non-conforming product.

The details of the configurations of the conforming product stack 50 and the non-conforming product stack 48 will be described later with reference to FIGS. 2, 9, and 10.

In the determination of the circuit board sheet, the circuit board sheet P is inspected by the inspection units 25 and 26 of the inspection device 120, and the inspection items of the circuit board sheet P are as specified by the determination unit 210 based on the inspection result. The conforming circuit board sheet Pa and the other non-conforming circuit board sheet Pb, which are recyclable products, are discriminated from each other.

Next, an instruction signal is transmitted from the control unit 220 to the selective drive motor M according to the determination result of the determination unit 210, and the selective transfer unit 47 of the distribution device 140 is held in a horizontal state or the inclination angle is changed.

The control unit 220 is linked to the transfer speed of the circuit board sheet P, and when the circuit board sheet P that has passed through the inspection units 25 and 26 is conveyed on the selective transfer unit 47, the selective transfer unit 47 moves. Send signals to fluctuate. The method of loading the circuit board sheet P is such that the selective transfer unit 47 is held in a horizontal state or the inclination angle is changed by the selective drive motor M, so that the circuit board sheet P is a conforming product (suitable for the standard). Passed products, non-defective products) and non-conforming products (rejected products, rejected products, defective products) can be sorted and loaded.

In the above-mentioned loading method of the circuit board sheet P, the accepted product and the non-conforming product (recyclable product) that has been repelled in the inspection are separately loaded, so that the worker can easily take out only the recyclable product in the subsequent process. , It is easy to rework and correct.

The inspection items for determining whether the circuit board sheet P is a conforming product or a non-conforming product are appropriately selected and set depending on the intended use of the circuit board sheet P and the like.

Further, as shown in FIG. 2, after selecting the transfer destination, the transfer state sensors 91 and 92 for detecting the transfer state of the circuit board sheet P on the transfer path are provided at any part of the transfer path. You may be.

As shown in FIG. 2, the airflow blowing means (devices) 60 and 70 are provided in the sorting device 140.

The airflow blowing means 60, 70 pushes the tip of the sheet (Pb, Pa) in the transport direction during the period when the sheet (Pb, Pa) is discharged (delivered) from the end of the transport belt and loaded on the stack portions 48, 50. Airflow is sent in the lifting direction, approximately parallel to the transport direction. Due to the airflow sent almost in parallel, the sheet floats from the transport belt, forming a layer of air between the discharging sheet and the previously loaded sheet, and the discharging sheet does not plummet. Since it descends slowly, it is possible to prevent scratches due to friction between the seat surfaces.

Here, the discharged sheet means that the sheets Pb, Pa are stacked on the uppermost surface of the sheet bundle in the stack portions 48, 50 from the time when at least a part of the sheets Pb, Pa is separated from the transport belts 43b, 46. It means the seats during the previous period, that is, the seats Pb and Pa that are falling by their own weight at the upper part of the stack portions 48 and 50.

In addition, since the tip of the discharging sheet is lifted in the falling direction due to the airflow sent substantially in parallel, the tip of the discharging sheet does not collide with the upper surface of the previously loaded sheet. By moving while rubbing the upper surface thereof, it is possible to prevent not only the tip of the sheet being discharged but also the upper surface of the previously loaded sheet from being damaged.

That is, the circuit board sheet Pb from which the air ejected by the first airflow blowing means (air ejection unit, air unit) 60 is discharged and the circuit board sheet P previously loaded on the nonconforming product stack 48. It is blown in between. Therefore, the tip end portion of the discharged circuit board sheet Pb is prevented from being scratched on the surface of the previously loaded circuit board sheet Pb by coming into contact with the floating circuit board sheet Pb.

Similarly, the circuit board sheet Pa from which the blown air from the second airflow blowing means (air blowing portion, air unit) 70 is discharged and the circuit board sheet previously loaded on the conforming product stack 50. It is blown between Pb. Therefore, the tip end portion of the circuit board sheet Pa being discharged is prevented from being scratched on the surface of the previously loaded circuit board sheet Pa by coming into contact with the floating circuit board sheet Pa.

<Structure of airflow blowing means>
FIG. 4 is a perspective view of the airflow blowing means, FIG. 5 shows an exploded view of the airflow blowing means, and FIG. 6 shows a view of the airflow blowing means from another angle. Since the airflow blowing means 60 and 70 have substantially the same configuration, the airflow blowing means 70 provided immediately before the conforming product stack 50 parallel to the transport unit 47 in the horizontal direction will be described.

With reference to FIG. 5, in the airflow blowing means 70, the fans 71a, 71b, 71c, 71d, 71e, 71f, 71g are arranged in the depth direction (the width direction of the sheet P). Outlets (nozzles) 72a, 72b, 72c, 72d, 72e, 72f, 72g are provided so as to correspond to these fans. The fans 71a to 71g are fixed to the base member 73 on the upstream side in the transport direction, and the downstream side in the transport direction is covered with the cover 74.

Further, in the housing of the sorting device 140, ionizers 77 for imparting static elimination ability to the airflow sent from the airflow blowing means 70 are provided, respectively. With reference to FIG. 6, the ionizer 77 is connected to the intake side of the base member 73 provided with the fans 71a to 71g via the pipe 76. A path 75 for passing the statically eliminated air is provided in the lower part of the base member 73 and the cover 74.

The airflow blowing means 70 is provided with a plurality of fans 71a to 71g, and the amount of air blown by the fans can be adjusted with respect to the outlets 72a to 72g. The air volume can be adjusted.

Therefore, by driving only the fans required by the characteristics (size (length, width), thickness, material, etc.) of the circuit board sheet P, it is possible to blow out air optimal for the size.

Further, when the transport status sensors 91 and 92 (see FIG. 1) detect a bend in the transport, the curled sheet P is sent a different amount of air in the width direction to prevent the curled sheet P from bending during loading. It can be corrected.

FIG. 7 shows a partial configuration diagram of the conforming product stacking device 150 and the sorting device 140. As shown in FIG. 1, a second airflow blowing means 70 is provided at the rear stage of the most downstream transport belt 46.

By providing the airflow blowing means 70 at this location, the airflow can flow in the transport direction between the circuit board sheet P discharged from the transport section and the circuit board sheet P already loaded.

The airflow blowing means 70 is provided in the transport direction so as to rise from the transport belt 46 from diagonally below the circuit board sheet Pa during the period in which the circuit board sheet Pa is loaded from the end of the transport belt 46 onto the conforming product stacking device. Airflow is sent almost parallel to.

As a result, by lifting the tip of the circuit board sheet Pa in the transport direction, it becomes difficult to collide with the sheet loaded on the conforming product stack 50 of the conforming product stacking device 150 from the side.

Further, since a layer of air is formed between the sheet Pa for the circuit board being discharged and the sheet Pa for the circuit board stacked on the conforming product stack 50 due to the substantially parallel airflow, the circuit board being discharged is being discharged. The sheet Pa slowly falls. Therefore, it is possible to prevent the sheet from being scratched due to friction between the sheet surfaces of the discharged sheet Pa and the stacked sheet Pa, or the tip of the discharged sheet Pa colliding with the upper surface of the stacked Pa and rubbing. To do.

In addition to the conforming product stack 50, which is a loading tray, the conforming product stack device 150 includes an elevating mechanism for raising and lowering the position of the conforming product stack 50 when collecting the circuit board sheet Pa, and the conforming product stack 50. A device housing or the like surrounding the device may be provided.

By flowing an air flow in the transport direction between the circuit board sheet Pa discharged from the transport section and the already loaded circuit board sheet Pa, the loaded circuit board sheet Pa is discharged. The friction with the circuit board sheet Pa can be reduced.

Although the airflow blowing means 70 has been described in FIGS. 4 to 6 above, the same configuration can be applied to the airflow blowing means 60.

Similarly in this example, the circuit board sheet Pb from which the air ejected by the air ejection unit (air flow blowing means) 60 is discharged and the circuit board sheet Pb previously loaded on the nonconforming product stack 48 It is blown in between. As a result, the tip of the newly laminated top-level circuit board sheet Pb is slightly floated, and when it comes into contact with the laminated circuit board sheet Pb, it comes into contact with the surface of the previously loaded circuit board sheet Pb. Prevent scratches.

<Control of air volume adjustment, etc.>
FIG. 8 illustrates a control block related to the characteristics of the circuit board sheet. As described above, by utilizing the characteristics of the sheet detected by the sheet characteristic detection unit 13 provided in the sheet separation and supply device 110, the air volume sent out by the above-mentioned airflow blowing means 60 and 70 and the conforming product stacking device 150. The widths of the stack portions 48 and 50 can be adjusted.

In FIG. 8, the control system 80 includes a CPU 81, a flow rate control unit 82, a seat width control unit 83, and the like.

The flow rate control unit 82 includes a first flow rate setting unit 86 that controls a first airflow blowing means 60 that sends air to the nonconforming product circuit board sheet Pb sent to the nonconforming product stack 48, and a conforming product stack (loading tray). ) 50 is connected to a second flow rate setting unit 87 that controls a second airflow blowing means 70 that sends air to the conforming circuit board sheet Pa.

The seat width control unit 83 is connected to the tip stopper position adjusting unit 89 and the jogger position adjusting unit 88 in the loading tray 50 of the conforming product stacking device 150. The control of the seat width control unit 83 will be described later together with FIGS. 11 to 13.

As described above, the sheet characteristic detection unit 13 detects the characteristics of the sheet. For the characteristics of the sheet, for example, the type, thickness, weight, unit weight, etc. of the sheet are measured.

Then, the flow rate control unit 82 changes the flow rate of the airflow by the plurality of fans 61a to 61g and 71a to 71g according to the measured characteristics (size, thickness, etc.) of the circuit board sheet P.

For example, when adjusting the flow rates of a plurality of fans, the flow rates of the airflow may be adjusted by PWM control.

Here, as described above, the airflow blowing means 70 may be provided with a plurality of airflow outlets 72a to 71g (see FIG. 5) in the width direction of the transport direction of the circuit board sheet. .. The airflow blowing means 60 may also be provided with a plurality of airflow outlets having the same configuration as in FIG.

Further, the transport state sensors 91 and 92 for detecting the transport state in the width direction may be provided in the transport path. The flow rate control unit 82 may be able to individually adjust the flow rate of the airflow sent from each outlet in the width direction according to the detection results of the transport state sensors 91 and 92.

For example, when it is detected that the circuit board sheet Pa discharged from the end of the transport belt 46 is curled, when the curl amount is different in the transport width direction, the curl of each part is adjusted according to the curl amount of each part. It can be adjusted to blow out different airflows from the outlet so that the amounts are the same.

For example, even in the same circuit board sheet Pa, the portion having a large curl amount reduces the flow rate of the airflow from the outlet corresponding to that portion, and the portion having a small curl amount is from the outlet corresponding to that portion. Increase the flow rate of the airflow.

The flow rate control unit 82 changes the flow rate of the air flow according to the timing at which the interleaving paper produced by the interleaving paper means 160 shown in FIG. 1 is loaded while a plurality of circuit board sheets P are being loaded. Since the interleaving paper is heavy, it may be adjusted to increase the air flow so that it does not fall toward other sheets immediately.

Further, an ionizer control means 85 for controlling whether or not to operate the ionizer 77 (67) shown in FIGS. 4 to 6 may be provided.

Here, returning to FIG. 2, when the non-conforming product stack 48 is installed horizontally with respect to the transport direction, a certain range is caused by the non-conforming product sheet Pb for the circuit board colliding with the guide (standing portion 48c) at the tip during loading. It may be loaded separately.

Further, since the non-conforming product stack 48 has a guide (distance between the standing portions 48a and 48b) set slightly wider than the circuit board sheet Pa and is substantially parallel to the transport surface, the stacked circuit board sheet Pb was uneven.

Therefore, in the embodiment of the present invention, the nonconforming product stack 48 is provided with a predetermined angle and inclination _{of θ A ° in the transport direction (arrow B direction).}

<Structure of non-conforming product stack>
Here, FIG. 9 shows a perspective view of the nonconforming product stack 48. As shown in FIG. 9, the airflow blowing means 60 is provided in the vicinity of the nonconforming product stack 48 at the rear stage of the transport belt 43b.

During the period from the end of the transfer belt 43b to the nonconforming product stack 48, the circuit board sheet Pb sends an air flow in the direction of lifting the tip of the sheet Pb in the transfer direction, that is, substantially parallel to the transfer direction. The sent airflow causes the sheet Pb to float from the transport belt 43b, and prevents friction between the surfaces of the sheet Pb and damage caused by collision or rubbing between the tip of the sheet Pb being discharged and the upper surface of the stacked sheet Pb. ..

Further, as shown in FIG. 9, in the embodiment of the present invention, the nonconforming product stack 48 in which the positions of the seats Pb are aligned by the upright portions (joggers) 48a, 48b, 48c is directed downstream in the transport direction of the seats Pb. It is tilted downward by a predetermined angle of θ _A degree, preferably 2 to 10 degrees. _{Further, the non-conforming product stack 48 is provided with an inclination of a predetermined angle θ B} degree, preferably 2 degrees to 10 degrees, downward toward the operation side in the width direction of the seat Pb.

With this configuration, the non-conforming circuit board sheet Pb can be aligned and loaded on the downstream side and the front side of the transfer.

In the present invention, the non-conforming circuit board sheet Pb sorted by the sorting device 140 is recyclable. Therefore, it is necessary to take out and collect the non-conforming circuit board sheet Pb loaded for a predetermined number of times or every number of sheets.

As described above, the plurality of transport belts 41 to 46 including the transport belts 42 and 43 whose inclination angles can be changed and the nonconforming product stack 48 are provided in the sorting device 140 which is the same housing 400. ..

Here, the nonconforming product stack 48 is tilted downward by a predetermined angle toward the downstream in the transport direction of the sheet Pb, so that the non-conforming product stack 48 and the transport surface are on an extension line from the selective transport belt 43 set to be tilted. It is possible to receive and load the sheet Pb judged to be non-conforming product at substantially the same angle. Therefore, it is possible to suppress the occurrence of scratches on the loaded sheet.

As described above, the non-conforming product stack 48 is tilted downward by a predetermined angle, preferably 2 to 10 degrees, toward the operation side (front side), so that the non-conforming product sheet Pb for the circuit board is formed. It will be easier to take out when collecting.

10A and 10B show an explanatory diagram of a non-conforming product stack 48 taken out, where FIG. 10A shows before the non-conforming product stack unit is pulled out, and FIG. 10B shows after the non-conforming product stack unit is pulled out.

The non-conforming product stack 48 and the mounting unit 49 are mounted on the housing 400 as non-conforming product stack units by the slide mechanisms 410 and 420.

Further, a grip portion 48H is provided on the front side of the non-conforming product stack 48, and a grip portion 49H is provided on the front side of the mounting unit 49. By providing the slide mechanisms 410 and 420 and the gripping portions 48H and 49H in this way, the non-conforming product stack 48 can be easily pulled out to the operation side with respect to the housing, and the non-conforming product circuit board sheet Pb can be easily taken out. preferable.

As shown in FIG. 9, the position of the grip portion of the non-conforming product stack 48 is not limited to the front side surface (48H) of the non-conforming product stack 48, and may be located on the rear end side side surface (48I). Further, it may be provided on the upper surface in the vicinity of the upright portion 48c at the rear end of the conforming product stack 48 (48G). By providing the grip portion on two or more sides, it becomes easy to remove.

Further, if the non-conforming product stack 48 is removable from the housing after being pulled out to the operation side, the non-conforming product stack 48 can be recovered in the removed state, which is more preferable. is there.

In FIG. 10, the non-conforming product stack 48 slides together with the mounting unit 49 by the slide mechanisms 410 and 420, but the present invention is not limited to this configuration, and the non-conforming product stack 48 also slides directly to the mounting unit 49. It may be configured. The direct sliding configuration can reduce the cost of the device.

The jogger moving mechanisms 48d, 48e, 49f having the same configuration as the jogger moving mechanisms 56, 57 described later with reference to FIGS. 11 to 13 are provided outside the standing portions (joggers) 48a, 48b, 40c, respectively. You may be. As a result, the positions of the standing portions 48a, 48b, and 40c can be automatically adjusted by the driving force.

[Compatible product stack device configuration]
FIG. 11 shows a perspective view of the conforming product stacking device 150. The conforming product circuit board sheet Pa transported from the rearmost transport belt 46 of the sorting device 140 in the arrow direction is substantially parallel to the transport direction from diagonally below the circuit board sheet Pa from the second airflow blowing means 70. Air is applied to the surface, and the printed circuit board sheet Pa tip is discharged and loaded on the loading tray (conforming product stack) 50 in a state of being floated by the air.

In general, the stack portion of the conforming product stack, the non-conforming product stack, or the like has a guide set slightly wider than the circuit board sheet, so that the stacked circuit board sheets are uneven.

However, in the stack portion of the present invention, for example, in the conforming product stacking device 150, the circuit board sheet Pa loaded on the loading tray 50 includes a front side jogger 52, a back side jogger 53, a rear end jogger 54, and a tip stopper 55A. It is provided, and four sides of the circuit board sheet Pa are regulated and loaded.

In the conforming product stack (loading tray) 50, the front side jogger 52, the back side jogger 53, the rear end jogger 54, and the tip stopper 55A regulate the position of the end portion of the circuit board sheet Pa when loading. It functions as a unit and is provided on all four sides of the circuit board sheet Pa.

The tip stopper 55A moves to a position corresponding to the size (length in the transport direction, X direction) of the circuit board sheet Pa and stops.

The front side jogger 52, the back side jogger 53, and the rear end jogger 54 move by a specified amount from the standby position one by one, push in three sides of the circuit board sheet Pa, and thrust the tip of the circuit board sheet Pa into the tip stopper 55A. Align and load by hitting. Since air is applied to the circuit board sheet Pa from diagonally below and slightly upward in the transport direction, an air layer is formed between the circuit board sheets, and when aligning with a jogger or stopper. The circuit board sheet is less likely to be scratched.

Insert the interleaving paper (bonded sheet) between the circuit board sheet Pa for each specified number of sheets. Since the interleaving paper has a size larger than that of the normal sheet Pa at the center of the circuit board sheet Pa in the transport direction, the rear end jogger 54 pushes the rear end of the interleaving paper when it is loaded on the uppermost surface, and the inserted interleaving paper is the interleaving paper. It hits the paper stopper 55B and aligns.

Since the interleaving paper is a partition paper for each specified number of circuit board sheets Pa, the alignment accuracy does not matter.

As shown in FIG. 11, as the number of loaded circuit board sheet Pas increases, the number of interleaving sheets also increases, and due to the influence of the interleaving sheets I, the front side jogger 52 and the back side jogger 53 of the circuit board sheet Pa increase. Dripping occurs at the contacting part, and the alignment accuracy is disturbed. In order to prevent the disturbance during loading, the pushing amount of the front side jogger 52 and the back side jogger 53 can be adjusted from the operator panel 99 (see FIG. 8).

According to the above configuration, a conforming circuit board sheet Pa can be reliably loaded on any size circuit board sheet. Further, in the sheet stack portion, good paper alignment of the sheet Pa for the circuit board can be realized.

FIG. 12 shows a perspective view of the loading tray 50 of the conforming product stacking device 150 as viewed from a different angle from FIG. FIG. 13 shows a top view of the moving mechanism corresponding to the four-direction alignment portion included in FIG. FIG. 14 shows a schematic side view showing the loading state of the circuit board sheet in the loading tray 50 of the conforming product stacking device 150.

The size of the circuit board sheet Pa that can be loaded in the loading tray 50 can be adjusted independently in the vertical direction (transportation direction) and the horizontal direction (width direction) in units of 1 mm from the minimum size Pmin, and the maximum size Pmax. Can be mounted on the loading tray 50. For example, the sheet may be square or rectangular, and in the case of a rectangle, it is preferable that the long side is in the transport direction. It is assumed that the length of the minimum size transport that can be mounted and the length of the maximum size in the transport direction can differ by about 2.6 times.

Here, the front side jogger 52 and the back side jogger 53 stand by at a movable position on the bottom surface 51 of the loading tray 50, which corresponds to the size of the circuit board sheet Pa and is separated from the center by the same distance in the Y direction. Then, it waits for the circuit board sheet Pa to be discharged to the loading tray 50.

At that time, the tip stopper 55 stands by at a predetermined position in the X direction (the range of the position indicated by the solid line to the dotted line in FIG. 12) corresponding to the size of the circuit board sheet Pa.

When the number of sheets to be loaded is small (between the first sheet and about 200 sheets), when the circuit board sheet Pa is discharged into the loading tray 50, the loading tray is aligned with the front side jogger 52 and the back side jogger 53. Within 50, when the front side jogger 52 and the back side jogger 53 reciprocate, they hit the loading tray 50 and the alignment operation cannot be performed. In addition, there is a risk that the joggers 52 and 53 may be missed.

Therefore, the lower side of the front side jogger 52 and the back side jogger 53 is shaped like a comb, and the bottom surface 51 of the loading tray 50 is also a concave comb at a position opposite to the comb tooth shape of the joggers 52 and 53 within the operating range of the jogger. A large number of tooth receiving portions 51T are provided to prevent the front side jogger 52 and the back side jogger 53 from swinging when the number of loaded pieces in the loading tray 50 is small.

Specifically, among the plurality of alignment portions (52, 53, 54, 55A), the lower part of the two width direction alignment portions (52, 53) that regulate the position of the circuit board sheet Pa in the width direction in the transport direction. Has a comb-teeth shape. Here, in the comb-teeth shape on the lower side of the widthwise alignment portions (joggers) 52 and 53, strip-shaped cuts at substantially equal intervals are made from the lower surface to the upper side. Then, the portions between the cuts that protrude relatively downward are the comb tooth portions 52T and 53T.

The bottom surface 51 of the conforming product stack (loading tray) 50 has a comb tooth surface in the width direction of the circuit board sheet Pa in the transport direction. On the bottom surface 51, a plurality of strip-shaped grooves (or slits) are formed as comb tooth surfaces so as to be recessed inward (lower side) along the width direction of the circuit board sheet Pa, for example, at substantially equal intervals. There is. The groove is a recess that is recessed with respect to the surface, and the slit means a through hole that is elongated with respect to the surface.

The groove or slit portion functions as a concave comb tooth receiving portion 51T, and the comb tooth receiving portion (first groove) 51T fits with the comb tooth portions 52T and 53T.

The comb tooth receiving portion 51T, which is a groove or slit provided, is slidably engaged with the comb tooth portions 52T, 53T of the joggers 52, 53 on the side surface. With this configuration, the joggers 52 and 53 can slide with respect to the bottom surface 51 along the comb tooth receiving portion 51T in the width direction of the circuit board sheet Pa, and movement is restricted in the transport direction. ..

The width direction aligning portions 52 and 53 can be moved with respect to the bottom surface 51 according to the loading status of the circuit board sheet Pa at the time of loading.

By forming a concave comb-tooth receiving portion 51T at a position facing the comb-tooth portions 52T and 53T of the joggers 52 and 53 on the bottom surface 51 of the loading tray 50, the circuit board sheet from Pmin size to Pmax size. , It is possible to prevent the Y-direction end of the circuit board sheet Pa from sagging and the joggers 52 and 53 from swinging.

In the conforming product stacking device 150, jogger moving mechanisms 56 and 57 for moving the positions of the front side jogger 52 and the back side jogger 53 are provided in order to move the above.

Further, the tip stopper 55A can move in the transport direction according to the characteristics of the seat P at the time of loading and the loading condition.

The bottom surface 51 is provided with a strip-shaped bottom groove or slit (second groove or slit) 51G extending (carved) along the transport direction so that the tip stopper 55A can move. The lower part of the is engaged with the bottom groove or the slit 51G.

Further, a tip stopper moving mechanism 59 for sliding the positions of the rear end jogger moving mechanism 58 and the tip stopper 55A (and the interleaving paper stopper 55B) for moving the position of the rear end jogger 54 close to the transport belt is provided. ..

Here, the moving mechanism will be described. The instruction signal from the jogger position adjusting unit 88 connected to the seat width control unit 83 in the control system 80 shown in FIG. 8 is sent to the jogger moving mechanisms 56, 57, 58, and the instruction signal from the stopper position adjusting unit 89. Is sent to the tip stopper moving mechanism 59.

The jogger moving mechanisms 56 and 57 located on both sides of the circuit board sheet Pa in the width direction, the rear end jogger moving mechanism 58 and the tip stopper moving mechanism 59 located on both sides in the transport direction are provided with a motor, a slide, and the like. It is a dynamic actuator.

According to the above configuration, a circuit board sheet transporting / loading device capable of reliably loading a circuit board sheet Pa in any size circuit board sheet Pa and achieving good paper alignment is provided. It becomes possible to do.

It should be noted that the slide engagement configuration (52T, 53T and 51T, 55A and 51G) of the alignment portion (52, 53, 54, 55A) and the engagement configuration provided in the above-mentioned conforming product stack device 150 is used. , May be applied to non-conforming product stack 48. For example, FIGS. 9 and 10 show a configuration in which one groove or slit is formed on the surface of the stack 48 in each direction, but the shape is a comb tooth shape in which a plurality of grooves or slits are formed. May be good.

With this configuration, even in a non-conforming product stack, the sheets can be reliably loaded and good paper alignment can be realized.

Although the present invention has been described above based on each embodiment, the present invention is not limited to the requirements shown in the above embodiments. In the above embodiment, the circuit board sheet P has been described as an object of the sheet transfer inspection device of the present invention, but the type of sheet is not limited to the use of the circuit board, for example, a resin sheet for purposes other than the circuit board. Including. With respect to these points, the gist of the present invention can be changed without impairing the gist of the present invention, and can be appropriately determined according to the application form thereof.

10 Supply stack 12 Separation mechanism 13 Sheet characteristic detector 41, 42, 43, 44, 45, 46 Transport belt 47 Selective transport unit 48 Non-conforming product stack (rejected product stack)
49 Mounting unit (base)
50 Loading tray (Compatible product stack)
51 Bottom 51G Bottom groove (second groove or slit)
51T comb tooth receiving part (first groove or slit)
52 Front side jogger (width direction alignment part)
52T comb tooth part 53 Back side jogger (width direction alignment part)
53T Comb tooth part 54 Rear end jogger 55A Tip stopper 55B Insert paper stopper 56 Front side jogger moving mechanism 57 Back side jogger moving mechanism 58 Rear end stopper moving mechanism 59 Tip stopper moving mechanism 60 First blowing means 61a, 61b, 61c, 61d, 61e, 61f, 61g Fan 67 Ionizer 70 Second blowing means 71a, 71b, 71c, 71d, 71e, 71f, 71g Fan 72a, 72b, 72c, 72d, 72e, 72f, 72g Blow-out nozzle (outlet)
77 Ionizer 91,92 Transport status sensor 100 Sheet inspection sorting system 110 Sheet separation and supply device 120 Sheet inspection device 130 Relay transport device 140 Sheet sorting device 150 Conformity product Stacking device 151 Drive unit 152 Back side jogger moving mechanism 153 Slider rod 190 Circuit board Sheet transfer / loading device 210 Judgment unit 220 Control unit 410 Slide mechanism 420 Slide mechanism 400 Sorting device housing M Selective drive motor (selection unit)
P sheet (circuit board sheet, for example, prepreg)
Pa compliant sheet Pb non-compliant sheet

Japanese Unexamined Patent Publication No. 2002-233827

Claims (14)

A transport belt that transports the sheet and
A stack portion that is downstream of the transport belt in the transport direction of the sheet, is located below the transport belt, and sequentially loads the transported sheets.
An airflow blowing means that includes a plurality of fans and sends an airflow in a direction substantially the same as the conveying direction of the conveying belt to lift the tip of the sheet during descent.
A means for interleaving an arbitrary number of sheets in the middle of loading a plurality of the sheets, and
A flow rate control unit for adjusting the flow rate of the air flow of the air flow blowing means is provided.
The airflow blowing means is provided with a plurality of airflow outlets in the width direction of the sheet orthogonal to the transport direction.
The flow rate control unit adjusts the flow rate of the airflow in the airflow blowing means at the timing when the interleaving paper is loaded so as to increase the flow rate of the airflow in the airflow blowing means as compared with the case where the sheets are conveyed one by one, and sends the sheets from each outlet. A sheet transport / loading device characterized in that the flow rate of the air flow to be operated can be adjusted individually. The sheet transport / loading device according to claim 1, wherein the plurality of fans are PWM-controlled to adjust the flow rate of the air flow. The characteristics of the sheet are measured, or the characteristics of the sheet are input or set by the operator.
The sheet transport / loading device according to claim 1 or 2 , wherein the flow rate control unit changes the flow rate of the fan according to the characteristics of the sheet. In the flow control unit, when the sheet discharged from the end of the transport belt is curled and the curl amount is different in the width direction, the curl amount of each part is the same from the outlet. The sheet transport / loading device according to any one of claims 1 to 3, wherein the flow rate of the air flow can be adjusted. The sheet transporting / loading device is connected to an inspection device that determines whether each of the sheets conforms to a predetermined standard or a non-conforming sheet.
The stack portion includes a conforming product stack on which the conforming product sheet is loaded and a non-conforming product stack on which the non-conforming product sheet is loaded.
The transport belt having a variable tilt angle and at least one stack of the conforming product stack and the non-conforming product stack are provided in the same housing.
The stack in the housing is inclined downward toward the downstream in the conveying direction in which the sheet is conveyed, and is inclined downward toward the operation side in the width direction of the sheet.
The sheet transport / loading device according to any one of claims 1 to 4 , wherein the stack is configured to be retractable to the operation side by a slide mechanism. The sheet transport / loading device according to claim 5 , wherein the stack is removable from the housing after being pulled out to the operation side. The stack unit, adapted and located in the border on the line of incompatible, the sheet conveying-stacking apparatus according to claim 5 or 6, further comprising a stack for borderline. The sheet transport / loading device according to any one of claims 1 to 7 , further comprising an ionizer that imparts static elimination ability to the air flow. Any of claims 1 to 8 , wherein the stack portion regulates the position of an end portion of the sheet when it is loaded, and a plurality of alignment portions are provided on four sides of the sheet. The sheet transport / loading device described in item 1. The plurality of alignment portions have two width direction alignment portions that regulate the position of the sheet in the width direction orthogonal to the transport direction of the sheet.
The two width direction alignment portions are movable in the width direction, and movement is restricted in the transport direction.
Each time one sheet is mounted on the stack portion, the two width direction alignment portions move in the width direction according to the size of the sheet, thereby pushing the width of the sheet and loading the sheet. The sheet transport / loading device according to claim 9 , wherein the sheet transport / loading device is characterized by the above. In the stack portion, a plurality of strip-shaped first grooves or slits are formed on the bottom surface on which the sheet is loaded along the width direction of the sheet.
The claim is characterized in that the lower portion of each width direction alignment portion of the two width direction alignment portions has a comb tooth shape that engages with the plurality of first grooves or slits on the bottom surface. 10. The sheet transport / loading device according to 10. The plurality of alignment portions are located on the tip side in the transport direction, and have a tip stopper that regulates the position of the sheet in the transport direction.
The tip stopper is movable in the transport direction, and movement is restricted in the width direction of the sheet.
The tip stopper is characterized in that each time one sheet is mounted on the stack portion, the tip of the sheet is pushed in and aligned and loaded by moving in the transport direction according to the size of the sheet. The sheet transport / loading device according to any one of claims 9 to 11. In the stack portion, a band-shaped second groove or slit is formed along the transport direction on the bottom surface on which the sheet is loaded.
The sheet transport / loading device according to claim 12 , wherein at least a part of the lower portion of the tip stopper is engaged with the second groove or slit on the bottom surface. An inspection device that inspects the characteristics of a sheet and determines whether each sheet is a conforming sheet that conforms to a predetermined standard or a non-conforming sheet that does not conform to the standard.
The sheet transport / loading device according to any one of claims 1 to 4 is provided.
The tilt angle of the transport belt can be changed.
The stack portion includes a conforming product stack on which the conforming product sheet is loaded, a non-conforming product stack on which the non-conforming product sheet is loaded, and the conforming product stack or the non-conforming product stack by setting the inclination angle. Equipped with a selection unit to be transported to
Before SL airflow blowing means is provided for each of the nonconforming products stack with the compliant product stack,
Before Symbol selection unit, according to the judgment of the inspection device, by setting the inclination angle, to transport the sheet to said Compliant stack or the nonconforming products stack,
The sheet transporting / loading device sets the sheet as either the conforming product stack or the non-conforming product stack based on the determination result of whether the sheet is the conforming product or the non-conforming product determined by the inspection device. A sheet inspection / sorting device characterized in that the tilt angle is selected so as to select and transport the sheet.

Images