JP2007214497A - Board storage equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide board storage equipment, capable of easily determining whether a magazine is storing a conforming or nonconforming article by checking the storage status of a board. <P>SOLUTION: This board storage equipment uses a different stage, depending on whether a target substrate is a conforming or nonconforming substrate in placing a first substrate on a magazine 2. In the case of conforming substrate, a substrate 3 is supported and stored sequentially from a storage start stage "1" (top stage). In the case of nonconforming substrate, the substrate 3 is stored sequentially from the corresponding support stage "2", under the top stage of the magazine 2 which is different from that storing the conforming substrate. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a mounting board storage device that stores, in a magazine, a printed circuit board on which electronic components are mounted or an electronic component mounting board such as a lead frame.

This type of storage device (substrate storage device) is disclosed in, for example, Patent Document 1, but is performed.
JP 2001-36290 A

  In such a conventional substrate storage apparatus, a magazine for storing non-defective substrates and a magazine for storing defective products are prepared, and each substrate is stored in each magazine. At this time, the non-defective substrate and the defective substrate are similarly supported in each stage of each magazine in the same manner, so it is possible to check whether the non-defective substrate or the defective substrate is stored in the magazine. In order for the operator to make a determination, the operator needs to find and confirm a mark indicating that it is a defective product on the substrate in the magazine, which is very complicated.

  Therefore, in the present invention, when a non-defective substrate (electronic component placement board) and a defective substrate are separately stored in different magazines, the magazine storing the non-defective substrate and the non-defective substrate are stored. It is an object of the present invention to provide a mounting plate storage device that allows an operator to easily determine a magazine.

  For this reason, the first invention comprises a magazine provided with a plurality of support stages for supporting a plurality of electronic component placement plates for placing electronic components at intervals, and an elevator for raising and lowering the magazine, In the mounting plate storage device for moving the magazine up and down by an elevator and supporting the electronic component mounting plate on the corresponding support stage and storing it in the magazine, depending on whether the electronic component mounting plate is a good product or a defective product In addition, the electronic device mounting plate may be mounted on different magazines, and may include control means for controlling raising and lowering of the elevator so that at least one electronic component mounting plate is mounted on different support stages.

  A second invention includes a magazine provided with a plurality of support stages for supporting a plurality of electronic component placement plates for placing electronic components at intervals, and an elevator for raising and lowering the magazine, In the mounting plate storage device for raising and lowering the magazine and supporting the electronic component mounting plate on the corresponding support stage and storing it in the magazine, a good electronic component mounting plate or a defective electronic component mounting plate is provided. The elevator ascends and descends so that the electronic component placement plates are sequentially placed from different support stages of different magazines depending on a plurality of magazines to be stored and whether the electronic component placement plates are good or defective. A component supply apparatus comprising control means for controlling the motor.

  According to a third aspect of the invention, there is provided a magazine provided with a plurality of support stages for supporting a plurality of electronic component placement plates for placing electronic components at intervals, and an elevator for raising and lowering the magazine. In the mounting plate storage device for raising and lowering the magazine and supporting the electronic component mounting plate on the corresponding support stage and storing it in the magazine, a good electronic component mounting plate or a defective electronic component mounting plate is provided. When the plurality of magazines to be stored and the electronic component placement plate are non-defective, the magazines are sequentially placed from the uppermost stage or the lowest support stage of the magazine, and when the electronic component placement plate is defective, the electronic component placement plate is placed. It is characterized by comprising control means for controlling the raising and lowering of the elevator so that the placing plate is sequentially placed from the intermediate support stage of different magazines.

  According to the present invention, an operator can easily determine a magazine storing non-defective products and a magazine storing defective products by confirming the storage state of the mounting plate.

  Hereinafter, with reference to the accompanying drawings, the mounting plate storage device will be described. The mounting plate storage device includes a magazine and can store a printed circuit board or a lead frame as an electronic component mounting plate.

  FIG. 1 is a perspective view showing a magazine, and FIG. 2 is a perspective view of a mounting plate storage device. The mounting plate storage device 1 is soldered with electronic components mounted on an empty magazine 2 by a component mounting line (not shown), for example. This is a device for storing the printed circuit board 3 that has been damaged.

  The printed circuit board 3 on which components are mounted on a component mounting line (not shown) is transported to the substrate transport conveyor 5, and the substrate storage device 1 is provided with an elevator 6 that moves up and down a magazine in which the transported substrate 3 is stored. ing.

  A transfer conveyor 7 is provided at the upper part of the elevator 6, and an empty magazine 2 is conveyed on the conveyor 7 and transferred to an elevator chamber 9 that moves up and down in the elevator 6.

  The elevator 6 is provided with a receiving conveyor 10 on which the magazine 2 is transferred at a position where the elevator chamber 9 is lowered.

  At the entrance / exit side of the magazine 2 of the elevator 6, a light projecting element 11 and a light receiving element 12 are attached to the outer wall thereof. A light beam is emitted from the light projecting element 11 toward the light receiving element 12, but this light beam is blocked by the magazine 2 or the like, and the magazine 2 or the like is being delivered because the light receiving element 12 does not receive the light beam. Is detected.

  Next, the magazine 2 shown in FIG. 1 will be described.

  Support stages are formed at predetermined vertical intervals so that a large number of printed boards 3 can be stored in the magazine 2 in the vertical direction, and FIG. 1 shows a state in which the substrates 3 are stored in each support stage. ing. The magazine 2 contained in the elevator chamber 9 shown in FIG. 1 is a magazine that stores non-defective substrates 3. The non-defective substrates 3 are sequentially placed from the uppermost level indicated by the dotted line among the supporting steps of the magazine 2. It is stored in. When the magazine 2 in the elevator chamber 9 is a magazine that stores defective substrates, the printed board 3 is not stored in the uppermost support stage indicated by the dotted line, The substrate 3 is sequentially stored in the lower support stage from the support stage.

  Next, the control circuit of the printed circuit board storage device 1 will be described with reference to FIG.

  Each element of the printed circuit board storage device 1 is centrally controlled by the CPU 14, and a ROM 15 for storing a control program including an elevator lifting program shown in FIG. 4 and a RAM 16 for storing various programs and various data are bus lines. 17 is connected.

  An operation unit 20 is connected to the CPU 14 through a bus line 17, and a lift motor 23 that drives the lift of the elevator chamber 9 through an interface 21 and a driver 22 is connected.

  Next, the setting of the data of the storage start stage and the storage end stage for performing the lifting control of the elevator 6 will be described.

  That is, a setting screen as shown in FIG. 5 is displayed on a display screen such as a liquid crystal monitor (not shown) of the operation unit 20, and a storage start stage, a storage end stage, and a rising number are set with a keyboard (not shown).

  With this setting, in order to perform the elevation control of the elevator 6, the storage start stage when the board is a non-defective product and the storage start stage when the board is a defective product are stored in the RAM 16. In the data shown in FIG. 5, each storage start stage is stored in the RAM 16 as operation data.

  In addition, the number “50” indicating the final support stage that is the support stage where the storage of the substrate 3 is to be terminated (usually the same as the magazine storing the non-defective substrate and the magazine storing the defective substrate) is the last. It is stored in the RAM 16 as a stage storage means. Further, every time the elevator chamber 9 accommodates the substrate 3, the ascending number “1” indicating the number of the supporting stage that ascends next is stored in the RAM 16. The numbers indicating the support stages of the magazine 2 are “1” at the top of FIG. 2 and “50” at the bottom, and have 50 support stages.

  The operation will be described below.

  When automatic operation is started and an empty magazine 2 is placed on the delivery conveyor 7, the conveyor 7 is driven and conveyed to the elevator 6 side. At this time, the elevator chamber 9 is raised and stopped at a position where the magazine 2 is transferred from the conveyor 7.

  Next, the conveyor 7 conveys the magazine 2, delivers the magazine 2 into the elevator chamber 9, and when the sensor (not shown) in the elevator chamber 9 detects that the magazine 2 has been completely transferred, the elevator chamber 9 4 is lowered to a position where the first substrate 3 can be stored.

  That is, the CPU 14 first determines whether the substrate 3 stored in the magazine is a non-defective product or a defective product based on, for example, a signal from an electronic component mounting apparatus installed on the upstream side and mounting an electronic component on the substrate. When the substrate to be stored is a non-defective product, the support stage to be moved next in the RAM 16 is set to “1” (the uppermost stage) which is the storage start stage in FIG. 5, and the CPU 14 outputs an operation signal to the lifting motor 23. To do. For this reason, the elevating motor 23 is operated, the elevator chamber 9 is raised, and the magazine 2 is raised to a position where the substrate 3 can be stored in the support stage “1”.

  Next, the substrate transport conveyor 5 is driven to support and store the substrate 3 on the support stage “1”.

  Next, the CPU 14 compares whether or not the support stage is “50”, which is the storage end stage. Since it is not the storage end stage, the CPU 14 counts up the support stage by “1”, which is the data of the number of ascending sheets. The elevator chamber 9 is raised so that the support stage “2”, that is, the second support stage from the top, can accommodate the substrate.

  Next, every time the non-defective substrate 3 is transported to the conveyor 5 and stored in the magazine 2 in this way, the elevator chamber 9 rises by the level of the substrate support step of the magazine 2. As indicated by the broken line arrows in FIG. The light receiving state of the light receiving element 12 is confirmed every time the ascending operation is performed.

  Thereafter, when the CPU 14 determines that the substrate 3 to be stored next in the magazine is a defective product, the magazine 2 other than the magazine that has stored the non-defective substrate 3 so far (the structure such as dimensions and the number of substrate storage stages is different). In order to store defective substrates in a magazine that has been storing non-defective substrates until now, first, the substrate is stored in the magazine 2 that has stored non-defective products in the elevator chamber 9 until the storage end stage. Regardless of whether it is present or not, the magazine 2 storing the non-defective product is lowered to a position where it can be transferred to the receiving conveyor 10. Then, the conveyor 10 is driven, and the magazine 2 is discharged and conveyed from the elevator 6. When it is detected by a sensor (not shown) that the conveyor 10 is at a predetermined position where the magazine 2 is completely discharged from the elevator 6, the elevator chamber 9 rises and stores the defective product 2 (hereinafter referred to as defective product storage). Magazine).

  That is, when an empty defective product storage magazine 2 for storing defective products is placed on the delivery conveyor 7, the conveyor 7 is driven and conveyed to the elevator 6 side.

  Next, the conveyor 7 conveys the defective product storage magazine 2 and delivers the magazine 2 into the elevator chamber 9, and a sensor (not shown) in the elevator chamber 9 confirms that the defective product storage magazine 2 has been completely transferred. When detected, the elevator chamber 9 descends to a position where the first defective substrate 3 can be accommodated according to the flowchart of FIG.

  Since the substrate to be stored is a defective product, the support stage to be moved next in the RAM 16 is set to “2” (lower stage) as the storage start stage in FIG. The defective product storage magazine 2 is lowered to a position where the substrate 3 can be stored.

  Next, the substrate transfer conveyor 5 is driven to store the substrate 3 in the support stage “2” without storing the defective substrate in the uppermost stage of the defective product storage magazine 2.

  Next, the CPU 14 compares whether or not the support stage is “50”, which is the storage end stage. Since it is not the storage end stage, the CPU 14 counts up the support stage by “1”, which is the data of the number of ascending sheets. The elevator chamber 9 is raised so that the supported stage “3” can accommodate the substrate.

  Next, when the substrate to be stored is also a defective product, the elevator chamber 9 is stepped on the substrate support stage of the magazine 2 each time the substrate 3 is transferred to the transfer conveyor 5 and stored in the defective product storage magazine 2 in this way. Ascend by minutes. The light receiving state of the light receiving element 12 is confirmed every time this lowering operation is performed.

  When the CPU 14 determines that the board to be stored in the magazine 2 is a non-defective product, the defective product storage magazine 2 in the elevator chamber 9 has no problem whether the board has been stored up to the end of the storage. The good product storage magazine 2 is lowered to a position where it can be transferred to the receiving conveyor 10. Then, the conveyor 10 is driven, and the defective product storage magazine 2 is discharged and conveyed from the elevator 6. When it is detected by a sensor (not shown) that the conveyor 10 is in a predetermined position where the defective product storage magazine 2 is completely discharged from the elevator 6, the elevator chamber 9 rises and the non-defective product previously placed on the conveyor 7 is detected. The magazine 2 for storing is taken in.

  The defective product storage magazine 2 discharged by the conveyor 10 does not store a substrate at the uppermost level, but stores and stores substrates sequentially from the second level. For this reason, the operator can arrange the magazine 2 in which non-defective substrates are sequentially placed and stored from the top, and the magazine 2 in which defective products are stored, even if the structure of the magazine 2 is the same. This can be easily determined by checking whether or not the substrate is placed on the upper stage.

  Further, when the substrate is placed and stored in the magazine for storing non-defective substrates or the defective product storage magazine 2 up to the end of storage (the lowest level), the CPU 14 operates to drive the conveyor 10, The magazine for storing the substrate or the defective product storage magazine 2 is discharged and conveyed from the elevator 6. At this time, if the substrate is placed on the uppermost stage of the magazine 2, the magazine stores a non-defective board, and the magazine 2 is not placed on the uppermost stage. Is a defective product storage magazine, and an operator can easily determine whether a substrate stored in the magazine is a non-defective product substrate or a defective product substrate, depending on whether or not a substrate is present at the top. .

  Thereafter, when the non-defective substrates are similarly stored in the magazine 2, the non-defective substrates are placed on the lower level sequentially from the uppermost level of the magazine 2, and the defective substrates are second from the uppermost level of another magazine 2. It is placed and stored in the lower stage sequentially from the first stage.

  In this embodiment, when the defective substrate is first stored in the magazine 2, it is not placed on the uppermost stage but is placed on the second stage below, but the defective substrate is placed first. The stage is not limited to the second stage. Further, when the non-defective substrates are sequentially placed and stored in the support stage from the uppermost stage to the lower stage of the magazine, the defective boards may be sequentially placed from the lowest stage to the upper support stage. At this time, the final support stage when the substrate is stored in the magazine may be a different support stage between the non-defective substrate and the defective substrate, for example, a different support stage in the middle. Further, when a good substrate is stored from the bottom of the magazine, the good substrate may be placed from the bottom and the defective substrate may be placed sequentially from the top of the bottom.

  In addition, since the occurrence frequency of defective substrates is extremely low, the first stage on which defective substrates are placed is, for example, the intermediate stage of the magazine 2, for example, when the total number of stages is 50, the 30th and 25th stages from the top. Alternatively, it may be set to the 20th stage, and further, defective substrates may be accommodated, for example, every 2 stages from the middle of the support stage of the magazine 2, so that the substrates are accommodated from the uppermost stage. It can be more easily distinguished from the non-defective storage magazine.

  Further, in the present embodiment, the case where the non-defective substrate and the defective substrate are stored in different magazines 2 has been described. However, the model of the electronic component mounting plate such as the substrate stored in the magazine 2 has been changed. In this case, when the magazine 2 is changed and the electronic component placement plate is stored in the changed magazine 2, the placement start when the placement plate of the model before the change is placed on the support step. By placing the support stage different from the support stage, for example, by changing the support stage to be placed when the model is changed, it is possible to obtain the same effects as the above-described embodiment.

  Further, in the above-described embodiment, when the non-defective substrate and the defective substrate are stored in different magazines 2, one magazine 2 is transferred to the elevator 6 and stored in the magazine 2. When a substrate is changed from a non-defective product to a defective product, or when the substrate is changed from a defective product to a non-defective product, the magazine has been transferred to the elevator 6 until now even if there is a space in the supporting stage of the magazine and the substrate can be placed. The magazine that has been discharged is transported, the magazine 2 that does not store the substrate is transferred, and the substrate is placed from a predetermined support stage of the magazine 2, but the two magazines are placed on the elevator 6 so that the magazine can be moved up and down. For example, when storing a non-defective substrate in one magazine, for example, in the same manner as in the above-described embodiment, sequentially place the substrates from the top, and when storing a defective substrate in the other magazine, start from the level below the top. order When a substrate is stored and the substrate is placed to the lowest level of the magazine, the magazine may be discharged. Thus, by storing the substrate to the lowest level of each magazine, the storage of the substrate can be performed. Therefore, the magazine can be used effectively, and the number of magazines prepared in advance can be suppressed as much as possible.

  Further, in the present embodiment, the mounting plate storage device that stores the printed circuit board 3 in the magazine 2 as a storage target has been described. However, the mounting plate storage device of the present invention is limited to a printed circuit board as a storage target. Rather, in the mounting plate storage device that stores the lead frame, for example, in the magazine, which is an electronic component mounting plate, as described above, when the lead frame is first stored in the magazine, the lead frame is a non-defective product. In the case of a defective product, it may be different. By doing in this way, it is possible to obtain the same function and effect as those of the mounting plate storage device for the substrate.

  Although the embodiments of the present invention have been described above, various alternatives, modifications, and variations can be made by those skilled in the art based on the above description, and the present invention is not limited to the various embodiments described above without departing from the spirit of the present invention. It encompasses alternatives, modifications or variations.

It is a perspective view which shows the magazine of this invention. It is a perspective view which shows the printed circuit board storage apparatus of this invention. It is a control block diagram of a printed circuit board storage device. It is a figure which shows the flowchart of board | substrate accommodation operation | movement. It is a figure which shows operation data.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mounting board storage apparatus 2 Magazine which stores a non-defective board 2 Magazine which stores a defective board 3 Printed circuit board (electronic component mounting board)
6 Elevator 9 Elevator room 14 CPU (control means)

Claims (3)

  A magazine having a plurality of support stages for supporting a plurality of electronic component placement plates for placing electronic components at intervals, and an elevator for raising and lowering the magazine, and raising and lowering the magazine by the elevator In the mounting plate storage device for supporting the electronic component mounting plate on the corresponding support stage and storing it in the magazine, the electronic component mounting plate is mounted in a different magazine depending on whether the electronic component mounting plate is a good product or a defective product, A mounting plate storage device comprising control means for controlling raising and lowering of the elevator so that at least one of the electronic component mounting plates is mounted on different support stages.   A magazine having a plurality of support stages for supporting a plurality of electronic component placement plates for placing electronic components at intervals, and an elevator for raising and lowering the magazine, and raising and lowering the magazine by the elevator In the mounting plate storage device for supporting the electronic component mounting plate on the corresponding support stage and storing it in the magazine, a plurality of magazines storing non-defective electronic component mounting plates or defective electronic component mounting plates; Control means for controlling raising and lowering of the elevator so that the electronic component placement plate is sequentially placed from different support stages of different magazines depending on whether the electronic component placement plate is good or defective. A mounting plate storage device comprising the mounting plate storage device. A magazine having a plurality of support stages for supporting a plurality of electronic component placement plates for placing electronic components at intervals, and an elevator for raising and lowering the magazine, and raising and lowering the magazine by the elevator In the mounting plate storage device for supporting the electronic component mounting plate on the corresponding support stage and storing it in the magazine, a plurality of magazines storing non-defective electronic component mounting plates or defective electronic component mounting plates; When the electronic component placement plate is a non-defective product, the magazine is placed sequentially from the uppermost stage or the lowest support stage of the magazine. When the electronic component placement plate is defective, the electronic component placement plate is different A mounting plate storage device comprising control means for controlling raising and lowering of the elevator so as to be sequentially mounted from an intermediate support stage.

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