JP2008270547A - Stick component feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stick component feeder capable of efficiently feeding an electronic component housed in a stick case to a mounting device, etc. <P>SOLUTION: The stick component feeder includes a stacking unit 10 which stacks stick cases C housing a plurality of electronic components and having open ends in the longitudinal direction with the open ends set inclined downward, a contact unit 18 having a flat face with which the open ends of the stick cases C stacked on the stacking unit 10 are in contact, a through-hole through which an electronic component in a stick case C coming out of one open end in contact with the flat face of the contact unit 18 travels toward a transfer unit 22, an ascending/descending means 12 which shifts the stick cases C stacked on the stacking unit 10 in the order of ascending or the order of descending to sequentially match the open end of each stick case C to the through-hole, and a changeover means 40 which changes the order of ascending and the order of descending for each other as the ascending/descending means 12 shifts the stick cases C. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a stick component supply device, and more particularly to a stick component supply device that is suitable for application when an electronic component housed in a stick case is supplied from an opening end thereof to a mounting device or the like.

  In general, in a mounting apparatus that mounts electronic components on a printed circuit board, an electronic component supplied to a predetermined position is held by a suction head or the like and then mounted at a target position on the substrate to produce a mounted substrate.

  A component supply device is used to supply an electronic component to a predetermined position of such a mounting device. One of them is a stick type case (hereinafter referred to as “stick case”) in which a plurality of electronic components are stored in a stacked state, and the components are supplied in order from the opening end in the length direction of each stick case. There is a component supply device (see, for example, Patent Document 1).

  FIG. 1 schematically shows an outline of an example of a stick component supply apparatus. However, the wall on the front side in the figure is omitted.

  As shown in this figure, a lifter (loading portion) 10 having an inclined mounting surface (upper surface) is composed of a ball screw 14 rotated by a motor 12, a link 16 driven by the ball screw 14, and the like. The lifting means is arranged so as to be able to rise in a direction perpendicular to the placement surface.

  In addition, a substantially rectangular contact portion 18 having a flat surface inclined in a direction substantially perpendicular to the inclined surface is disposed in the vicinity of the lower end in the inclination direction of the mounting surface of the lifter 10. Side walls 20 are disposed on both sides (the front side is omitted), and a stick supply portion including a space defined by the contact portions 18 and the side walls 20 is formed.

  A plurality of stick cases C are stacked on the stick supply unit as shown in the figure. Each stick case C is a cylindrical container in which an opening end (not shown) is formed at one end in the length direction, and a plurality of electronic components are accommodated therein. Each stick case C is stacked on the lifter 10 in an inclined state with the opening end facing downward, so that each opening end abuts against the flat surface (the back side in the figure) of the abutting portion 18 and closes. Has been.

  Further, the contact portion 18 is provided with a through hole 18A larger than the electronic component, and when the opening end of one stick case coincides, the stored electronic component passes through the through port 18A to the downstream conveying portion. Supplied.

  In this component supply apparatus, as described above, the stick case C is inclined and stacked on the lifter 10, so that the electronic component contained in the stick case C whose opening end coincides with the through-hole 18A is self-weighted. And flows through the through-hole 18A.

  Thereafter, the electronic component further flows through the groove 22A of the component supply guide 22 that constitutes the conveyance section inclined in the same direction, and reaches the endless supply belt 24 that also constitutes the conveyance section. The supply belt 24 is driven by a gear 28 that is rotated by a motor 26, and conveys an electronic component that has reached the upstream side to a component suction position 30 on the mounting device (not shown) side.

  In addition, a component detection sensor 32 composed of a photoelectric sensor or the like is disposed in the contact portion 18 in the vicinity of the through-hole 18A. As shown in FIG. The electronic component P that has passed through can be detected.

  In the above-described component supply apparatus, as described above, the electronic components contained in the stick case C are supplied in a stacked state. Therefore, when the electronic components in one stick case C are empty, It is necessary to switch to a stick case C. At that time, the motor 12 is driven to raise the lifter 10, and the opening end of the next stick case C is made to coincide with the through-opening 18 </ b> A so that the electronic components therein flow down to the component supply guide 22. Yes.

  For this reason, when the passage of the component P is not detected by the component detection sensor 32 for a predetermined time, it is determined that the component in the stick case C has disappeared, and the motor 12 is driven to Ascending is started, and when the passage of the component is detected again by the sensor 32 after the ascent is started, the lifting of the lifter 10 is controlled to be sequentially supplied from the next stick case C.

Japanese Patent Laid-Open No. 5-327280

  In the above-described stick component supply device, when there are no more electronic components in one stick case C, the electronic components are supplied from the stick case C loaded in the next stage, and therefore the lifter 10 is provided one by one. It is necessary to perform the control operation of raising until all the parts in the stick case C loaded from the uppermost stage to the lowermost stage are empty.

  That is, after the lift of the stick case C by the lifter 10 is repeated for the number of steps from the bottom to the top, it is necessary to lower the lifter 10 to the bottom and reload the new stick case on the lifter. In addition, there is a problem that the electronic components housed in the stick case C cannot be efficiently supplied to the mounting apparatus or the like.

  The present invention has been made to solve the above-mentioned conventional problems, and it is an object of the present invention to provide a stick component supply device that can efficiently supply electronic components stored in a stick case to a mounting device or the like. To do.

  The present invention relates to a stacking unit in which a plurality of electronic components are housed and stacked with a stick case having an opening end in the length direction with the opening end inclined downward, and a stick stacked in the stacking unit. A contact portion having a flat surface with which the opening end of the case contacts, a through-hole through which an electronic component in the stick case passes from one opening end in contact with the flat surface of the corresponding contact portion to the transport portion side, and the stacking Elevating means for moving the stick cases stacked in the ascending order or descending order, and sequentially matching the opening ends of the stick cases to the through-holes, and switching means for switching the ascending order and descending order for moving the stick cases by the elevating means And the above-mentioned problems are solved.

  In the present invention, a component detection sensor that detects the passage of an electronic component is installed in the vicinity of the through-hole, and when the component detection sensor does not detect the passage of the component for a predetermined time, the ascending or descending order by the lifting and lowering means. It is also possible to perform a control to start the movement of the vehicle and stop when the component detection sensor detects the passage of the component.

  According to the present invention, the moving direction of the stick cases stacked by the switching means can be switched in ascending order or descending order, so that each stick case is positioned sequentially in descending order as well as in ascending order, and stored electronic components Therefore, the electronic component can be efficiently supplied to a mounting apparatus or the like.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 3 is a perspective view corresponding to FIG. 1 showing an outline of the stick component supply device of the first embodiment according to the present invention.

  Since the basic configuration of the component supply apparatus of the present embodiment is substantially the same as that shown in FIGS. 1 and 2, the description of the same parts is omitted.

  In the component supply apparatus according to the present embodiment, the electronic components housed from the stick cases C stacked on the lifter (loading unit) 10 are passed through the through-holes 18A formed in the contact portions 18, In order to switch the direction in which the lifter 10 is moved by the lifting / lowering means such as the motor 10 at that time, in order of ascending or descending order, the components are supplied to the component adsorption unit 30 via the component supply guide 22 and the supply belt 24 that sequentially constitute the conveyance unit. The manual changeover switch (switching means) 40 is attached to the installation main body.

  In the present embodiment, for the stick cases C stacked on the lifter 10, the uppermost stick case Ca matches the component supply height, that is, the opening end of the stick case matches the through hole 18A. From the state shown in the figure, the lifter 10 is raised by one step of the stick case, and the bottom stick case Ce is sequentially positioned to the top matching the same height, so that it is stored in each stick case. Supply of electronic components can be performed in ascending order.

  After that, after the lifter 10 is lowered and replaced with a new number of stick cases at the uppermost position (not shown), the operator presses the changeover switch 40. Thus, contrary to the ascending order, the lifter 10 is lowered one by one from the state where the lowermost stick case Ce coincides with the component supply height, and the uppermost stick case Ca shown in FIG. Positioning is sequentially performed to the bottom matching the height, and similarly, electronic components can be supplied in descending order. Thereafter, by moving the changeover switch 40 again, it is possible to return to the ascending order mode.

  In the present embodiment, the control operation by using the changeover switch 40 is realized by a control device including a CPU (not shown).

  That is, at the time of supplying the components in ascending order, as described above, when the passage of the electronic component is not detected within a predetermined time by the component detection sensor 32 provided near the through hole 18A, the lifter 10 is operated by the motor 12. Is started, and when the component detection sensor 32 detects the passage of the component, the control is performed to raise the stick case one step at a time, and each opening end is made to coincide with the through hole 18A. Can do.

  The same applies when switching from ascending order to descending order by the changeover switch 40, and component supply control can be performed depending on whether or not the component detection sensor 32 detects the component.

  As described above in detail, in the present embodiment, when the lifter 10 is raised in the ascending order mode and all the parts of the stacked stick cases C are emptied, an operation of lowering the lifter 10 is performed. Instead, a new stick case C is stacked on the lifter 10 in the raised position, and the mode is changed to the descending order mode by the changeover switch 40. As a result, when the parts of the stick case Ce stacked at the bottom are emptied, it is possible to control the descending order of lowering the lifter 10.

  As described above, according to the present embodiment, it is possible to supply components in both ascending and descending directions, so that the operation at the time of changeover to replace the stick case can be reduced, and the supply efficiency of the electronic components to the mounting apparatus can be reduced. Can be improved.

  In FIG. 4, the outline | summary of the stick component supply apparatus of 2nd Embodiment which concerns on this invention is shown.

  The component supply apparatus of the present embodiment is the same as the first embodiment except that a top dead center sensor 42A and a bottom dead center sensor 42B are attached to corresponding positions on the side wall 20 instead of the changeover switch 40 shown in FIG. This is substantially the same as the embodiment.

  In the present embodiment, it is possible to determine whether the component supply from the stick case C is finished when the lifter 10 is fully raised or finished by being lowered and finished by the top dead center sensor 42A and the bottom dead center sensor 42B. it can.

  Accordingly, when the stick cases C are stacked and started to be supplied, if the top dead center sensor 42A is in the ON state, the parts are automatically supplied in descending order, and conversely the bottom dead center sensor 42B is in the ON state. If there is, it is possible to automatically control to supply the components in ascending order. Thereby, the function similar to 1st Embodiment is automatically realizable.

Perspective view schematically showing the outline of the stick component supply device Partial perspective view which expands and shows the principal part of a stick component supply apparatus The perspective view which shows typically the outline | summary of the stick component supply apparatus of 1st Embodiment which concerns on this invention. The perspective view which shows typically the outline | summary of the stick component supply apparatus of 2nd Embodiment which concerns on this invention.

Explanation of symbols

10 ... Lifter (loading section)
12 ... Motor (lifting means)
DESCRIPTION OF SYMBOLS 14 ... Ball screw 16 ... Link 18 ... Contact part 18A ... Through-hole 20 ... Side wall 32 ... Component detection sensor 40 ... Changeover switch 42A ... Top dead center sensor 42B ... Bottom dead center sensor

Claims (2)

A stacking unit for stacking a stick case having an opening end in the length direction in which a plurality of electronic components are stored, with the opening end inclined downward;
A contact portion having a flat surface with which the opening ends of the stick cases stacked on the stacking portion contact;
A through-opening through which an electronic component in the stick case passes from the one opening end in contact with the flat surface of the contact portion to the transport portion side;
Elevating means for moving the stick cases stacked in the loading section in ascending or descending order, and sequentially matching the opening ends of the stick cases with the through-holes,
A stick component supply apparatus comprising: switching means for switching the ascending order and descending order for moving the stick case by the elevating means. In the vicinity of the through-hole, a component detection sensor for detecting the passage of electronic components is installed,
When the component detection sensor does not detect the passage of the component for a predetermined time, the ascending or descending movement is started by the elevating means, and the control is performed to stop when the component detection sensor detects the passage of the component. The stick component supply device according to claim 1, characterized in that:

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