JP6074621B2 - Feeder maintenance device - Google Patents

Description

  The present invention relates to a feeder maintenance device that performs maintenance of a tape feeder that feeds components to a component supply port by performing a carrier tape feeding operation using a sprocket.

  The tape feeder is attached to a slot of a feeder base provided in the component mounting machine, and the carrier tape is fed by a sprocket to supply the component to the component supply port. For such a tape feeder, it is necessary to perform maintenance work periodically. Conventionally, the outer peripheral pin of the sprocket is imaged and its position is measured, and the feeding accuracy of the carrier tape is determined based on the result. What is known is known (for example, Patent Document 1).

JP 2003-168890 A

  However, as the tape feeder is repeatedly used, dirt, dust, foreign matter, etc. may adhere to the outer peripheral pin of the sprocket and the tape feeding accuracy may decrease, so the conventional outer peripheral pin of the sprocket is imaged. However, it was necessary to clean the sprocket manually in advance. For this reason, a lot of time is required for the entire maintenance work of the tape feeder, and there is a problem that the tape feeder cannot be sufficiently cleaned. In particular, since the entire sprocket is not exposed, it is necessary for the operator to repeat the wiping cleaning of the exposed part of the sprocket and the small amount of rotation of the sprocket alternately before cleaning. Was very cumbersome.

  Then, this invention aims at providing the feeder maintenance apparatus which can clean a sprocket easily and fully.

  The feeder maintenance device according to claim 1 is a feeder maintenance device that performs maintenance of a tape feeder that feeds a component to a component supply port by performing a carrier tape feeding operation using a sprocket, and a slot in which the tape feeder can be mounted. Air injection means for injecting air toward the sprocket of the tape feeder attached to the slot; rotation control of the sprocket of the tape feeder attached to the slot; and air injection control of the air injection means And control means for injecting air from the air injection means while rotating the sprocket of the tape feeder.

  The feeder maintenance device according to claim 2 is the feeder maintenance device according to claim 1, wherein the air ejecting means further includes a top tape of the tape feeder attached to the slot in addition to the sprocket. Air is jetted toward at least one of a tension detection sensor that detects tension, a top tape pulling portion that pulls the top tape and accommodates it in a top tape collecting portion, and a splicing member detection sensor that detects a splicing member of the carrier tape.

  A feeder maintenance device according to a third aspect of the present invention is the feeder maintenance device according to the first or second aspect, comprising a housing that covers the slot, the air ejecting means, and the tape feeder attached to the slot.

  In the present invention, air is injected from the air injection means toward the sprocket while rotating the sprocket of the tape feeder attached to the slot. Since it is not necessary to repeat a small amount of rotation operation alternately, the sprocket can be easily and sufficiently cleaned.

(A) (b) The perspective view of the feeder maintenance apparatus in one embodiment of this invention The perspective view which shows the state which attached the tape feeder in one embodiment of this invention to the feeder base of the component mounting machine The figure which shows the location on the tape feeder which the feeder maintenance apparatus in one embodiment of this invention cleans The block diagram which shows the control system of the feeder maintenance apparatus in one embodiment of this invention The perspective view which shows the feeder maintenance apparatus in one embodiment of this invention with a tape feeder

  Embodiments of the present invention will be described below with reference to the drawings. A feeder maintenance device 1 shown in FIG. 1A is a device that performs maintenance work on a tape feeder 2 used as a component supply unit of a component mounting machine (not shown). The tape feeder 2 performs maintenance. Sometimes, it is attached to the feeder maintenance device 1 by the operator OP as shown in FIG.

  First, the structure of the tape feeder 2 is demonstrated using FIG. The tape feeder 2 has a main body 11 provided with a feeding mechanism for the carrier tape 3 containing the component P as a main part, and a lower surface of the main body 11 has a slot FBS provided in a feeder base FB on the component mounter side. A connecting portion 11a to be inserted is provided. Here, for convenience of explanation, when the tape feeder 2 in the longitudinal direction of the tape feeder 2 is inserted into the slot FBS of the feeder base FB, the direction which is the leading side in the traveling direction (the back side as viewed from the operator OP) is the front slot. The direction that is the rear side of the traveling direction when inserted into the FBS (the front side as viewed from the operator OP side) is defined as the rear.

  A sprocket 12 constituting a feed mechanism for the carrier tape 3 is rotatably provided at the upper front portion of the main body 11. The sprocket 12 is driven intermittently by being driven by a sprocket drive motor 13 built in the main body 11. A groove-shaped tape passage 14 is provided on one side surface (here, the right side surface) of the main body portion 11, and the tape introduction port 15 through which the carrier tape 3 is introduced into the main body portion 11 is the rearmost portion of the tape passage 14. It has become.

  In FIG. 2, a tape pressing member 16 is provided on the front upper portion of the main body 11. The tape pressing member 16 is pivotally supported on the main body 11 by a pivot member 16p at its rear end, and is in a closed position that covers the upper region of the sprocket 12 and presses the carrier tape 3 toward the sprocket 12 (position shown in FIG. 2). And an open position (position shown in FIG. 3) opened upward from the closed position.

  As shown in the enlarged view of FIG. 2, in the longitudinal direction of the carrier tape 3, component storage portions 3a storing components P are provided at regular intervals to form a row of component storage portions 3a. A row of feed holes 3b is provided in parallel with the row of portions 3a. Of the carrier tape 3 drawn out from a reel (not shown) and entering the tape passage 14 from the tape inlet 15, the portion located immediately above the sprocket 12 is pressed against the sprocket 12 by the tape pressing member 16. The feed hole 3 b is engaged with the outer peripheral pin 12 p of the sprocket 12 rotated by the sprocket drive motor 13.

  The feeding operation of the carrier tape 3 by the tape feeder 2 is controlled by a control unit (not shown) of the component mounting machine. The control unit of the component mounting machine operates the sprocket drive motor 13 to intermittently rotate the sprocket 12, and the sprocket 12 engages the outer peripheral pin 12 p with the feed hole 3 b of the carrier tape 3 and pulls the carrier tape 3. As a result, the carrier tape 3 advances intermittently in the tape passage 14 from the rear to the front of the main body 11 (arrow A shown in FIG. 2), and the component P in the component storage portion 3a is transferred to the tape pressing member 16. The component supply port 16a provided is made to reach at regular time intervals. The component P supplied from the tape feeder 2 to the component supply port 16a is picked up by a mounting head (not shown) provided in the component mounting machine and mounted on the substrate.

  In the enlarged view of FIG. 2, a top tape 3t for preventing the component P from falling off from the component storage portion 3a is provided on the surface (upper surface) of the carrier tape 3 so as to cover the component storage portion 3a. The top tape 3t is peeled off from the carrier tape 3 before the component storage portion 3a reaches the component supply port 16a, and the main body from the top tape pull-out port 16T provided at the rear position of the component supply port 16a of the tape pressing member 16. It pulls out toward the back of the part 11 (arrow B shown in FIG. 2). The top tape 3t pulled out from the top tape outlet 16T is given an appropriate tension by the tension applying mechanism 17 provided at the middle upper portion in the longitudinal direction of the main body 11, and the top provided at the rear of the tension applying mechanism 17 is provided. The tape is pulled backward by the tape pulling portion 18 and collected in the top tape collecting portion 19.

  In FIG. 3, the tension applying mechanism 17 includes a swing member 17b to which two roller members 17a are rotatably attached, an urging spring 17c, and a tension detection sensor 17d. The swinging member 17b is swingably provided around the swinging fulcrum 17p, and the top tape 3t is bridged between the two roller members 17a (see FIG. 2). The biasing spring 17c biases the swing member 17b so that an appropriate tension is applied to the top tape 3t, and the tension detection sensor 17d determines the tension of the top tape 3t from the swinging posture of the swing member 17b (in detail). Detects when the tension drops below the specified value.

  In FIG. 3, the top tape tensioning portion 18 includes a pair of tensioning rollers 18a that sandwich the top tape 3t, and a tension roller driving motor that rotates the pair of tensioning rollers 18a so that the top tape 3t is pulled toward the top tape collecting portion 19 side. 18b. Both the tension applying mechanism 17 and the top tape pulling portion 18 are provided so as to be exposed on the right side when viewed from the operator OP of the main body portion 11.

  When the tension detection sensor 17d detects that the tension of the top tape 3t is lower than a specified value, the control unit of the component mounting machine (not shown) rotates the pair of pulling rollers 18a of the top tape pulling unit 18. . As a result, the pulling roller 18a rotates intermittently in synchronism with the sprocket 12, and the top tape 3t is pulled intermittently to be accommodated in the top tape collecting unit 19.

  In FIG. 2, a splicing member detection sensor 20 that detects a splicing member 3 </ b> S that connects the ends of the two carrier tapes 3 is provided at the upper center of the main body 11. The splicing member 3S is formed of a tape-like member, and is attached across two carrier tapes 3 to be connected. The plurality of feed holes 3b positioned at the ends of the two carrier tapes 3 to be coupled are covered and closed by the splicing member 3S.

  In FIG. 2, in the tape passage 14 formed in the main body 11 of the tape feeder 2, the upper part of the main body 11 and between the sprocket 12 and the tension applying mechanism 17 is located on the right side of the main body 11. A sensor frame 21 having an inverted L-shaped cross section is provided on the open side, and a horizontal ceiling portion 21a of the sensor frame 21 is positioned to face the tape passage 14 of the main body portion 11 in the vertical direction. As shown in the enlarged view of FIG. 3, the splicing member detection sensor 20 includes a light projecting portion 20a attached to the lower surface of the ceiling portion 21a of the sensor frame 21, and a main body portion on the tape passage 14 directly below the light projecting portion 20a. 11 and a light receiving portion 20b embedded in the space.

  The light projecting part 20a of the splicing member detection sensor 20 projects inspection light onto the traveling path of the feed hole 3b of the carrier tape 3 traveling on the tape path 14 directly below, and the light receiving part 20b passes the feed hole 3b. Receives light. When the carrier tape 3 is traveling on the tape path 14, the feed hole 3b of the carrier tape 3 crosses the inspection light at a constant time interval, so that the light receiving unit 20b repeats receiving pulsed inspection light. Here, when the splicing member 3S covering the feed hole 3b crosses the inspection light, the light receiving unit 20b does not receive the inspection light during that time, so the splicing member detection sensor 20 receives the pulsed inspection light received by the light receiving unit 20b. The splicing member 3S detects that the splicing member 3S has crossed the inspection light when the adjoining receiving hole 3b of the traveling carrier tape 3 becomes larger than the time interval crossing the inspection light.

  Next, the configuration of the feeder maintenance device 1 will be described. In FIG. 1, the feeder maintenance apparatus 1 has an air injection means installation section 32 on a fixed base 31 having a horizontal XY plane as an upper surface, and the air feeder installation section 32 has a tape feeder 2 attached to a slot 31S. Air injection means 33 for injecting air toward is provided.

  In FIG. 1A, a slot 31S is provided on the upper surface of the fixed base 31 so that the connecting portion 11a of the tape feeder 2 can be inserted and attached in one direction (Y-axis direction) in the horizontal plane. As shown in FIG. 1B, in the state where the tape feeder 2 is attached to the slot 31S, the longitudinal direction (front-rear direction) of the tape feeder 2 coincides with the Y-axis direction of the feeder maintenance device 1, and the tape feeder 2 The horizontal direction (left-right direction) coincides with the X-axis direction of the feeder maintenance device 1.

  The air injection means installation unit 32 includes a first installation unit 32a and a second installation unit 32b. The first installation portion 32a is located in front of the tape feeder 2 attached to the slot 31S, and the second installation portion 32b is located on the right side of the tape feeder 2 attached to the slot 31S so as to extend in the Y-axis direction. ing.

  The air injection means 33 includes four air injection nozzles 34 (a first air injection nozzle 34a, a second air injection nozzle 34b, a third air injection nozzle 34c, and a fourth air injection nozzle 34d). The first air injection nozzle 34a is installed in the first installation part 32a, and the second air injection nozzle 34b, the third air injection nozzle 34c, and the fourth air injection nozzle 34d are the second installation part 32b. Is installed. The first air injection nozzle 34a injects air toward the uppermost area AR (FIG. 3) of the sprocket 12 that is the exposed portion of the sprocket 12 of the tape feeder 2 attached to the slot 31S, and the second air injection nozzle 34b injects air toward the tension detection sensor 17d. The third air injection nozzle 34c injects air toward the top tape pulling portion 18, and the fourth air injection nozzle 34d injects air toward the splicing member detection sensor 20 (light projecting portion 20a and light receiving portion 20b). To do.

  The control device 40 (FIG. 4) provided in the feeder maintenance device 1 operates the sprocket drive motor 13 of the tape feeder 2 attached to the fixed base 31 and operates the pulling roller drive motor 18 b of the top tape pulling portion 18. (FIG. 4). Moreover, the control apparatus 40 performs air injection control which injects air from each of the 1st-4th air injection nozzles 34a, 34b, 34c, 34d which comprise the air injection means 33 (FIG. 4).

  When the maintenance work of the tape feeder 2 is performed by the feeder maintenance device 1, the operator OP first opens the tape pressing member 16 of the tape feeder 2 to be subjected to the maintenance work (open position) as shown in FIG. The connecting portion 11a of the tape feeder 2 is inserted into the slot 31S, and the tape feeder 2 is attached to the fixed base 31.

  When the operator OP attaches the tape feeder 2 to the fixed base 31, the operator OP performs a predetermined operation start operation input from the input device SB (FIG. 4) connected to the control device 40. When detecting the operation input signal made by the operator OP, the control device 40 operates the sprocket drive motor 13 to rotate the sprocket 12, and operates the top tape pulling roller drive motor 18b to operate the top tape pulling portion 18. While the pair of pulling rollers 18a are rotated, the four air injection nozzles 34 are made to inject air. As a result, air is blown to the uppermost area AR of the sprocket 12, the tension detection sensor 17d, the top tape pulling portion 18, and the splicing member detection sensor 20 (light projecting portion 20a and light receiving portion 20b), and these portions are cleaned. The control device 40 stops the air injection when a predetermined time has elapsed from the start of the air injection operation, and ends the maintenance work of the tape feeder 2.

  Thus, in the feeder maintenance apparatus 1 in the present embodiment, the first air injection nozzle 34a that injects air toward the exposed portion (uppermost area AR) of the sprocket 12 of the tape feeder 2 attached to the slot 31S. The air jetting means 33 including the air jetting means 33 is provided, and air is jetted from the air jetting means 33 toward the sprocket 12 while rotating the sprocket 12 of the tape feeder 2. For this reason, when cleaning the sprocket 12, it is not necessary to repeat the wiping cleaning of the exposed portion (uppermost area AR) of the sprocket 12 and the small amount rotation operation of the sprocket 12, and the sprocket 12 can be cleaned easily and sufficiently.

  In addition to the first air injection nozzle 34a for injecting air to the sprocket 12, the air injection means 33 includes a second air injection nozzle 34b, a third air injection nozzle 34c, and a fourth air injection nozzle 34d. These second to fourth air injection nozzles 34b, 34c, and 34d are configured to inject air toward the tension detection sensor 17d, the top tape tension portion 18, and the splicing member detection sensor 20. For this reason, not only the sprocket 12 but also other portions of the tape feeder 2 (the tension detection sensor 17d, the top tape pulling portion 18 and the splicing member detection sensor 20) can be cleaned together. For the tension detection sensor 17d, the top tape pulling portion 18, and the splicing member detection sensor 20, a sufficient effect can be obtained by simply injecting air toward at least one of them.

  The feeder maintenance device 1 described above includes a housing HG that can cover the slot 31S (fixed base portion 31), the air injection means 33, and the tape feeder 2 attached to the slot 31S, as shown in FIG. May be. With such a configuration, it is possible to prevent dust, dust, foreign matter, etc. blown away by air injection from the air injection means 33 from being scattered over a wide range.

  Provided is a feeder maintenance device that can easily and sufficiently clean a sprocket.

DESCRIPTION OF SYMBOLS 1 Feeder maintenance apparatus 2 Tape feeder 3 Carrier tape 3S Splicing member 12 Sprocket 16a Parts supply port 17d Tension detection sensor 18 Top tape tension | pulling part 19 Top tape collection | recovery part 20 Splicing member detection sensor 31S Slot 33 Air injection means 40 Control apparatus (control means) )
HG housing P parts

Claims (3)

A feeder maintenance device that performs maintenance of a tape feeder that feeds components to a component supply port by performing a carrier tape feeding operation by a sprocket,
A slot in which the tape feeder can be attached;
Air injection means for injecting air toward the sprocket of the tape feeder attached to the slot;
Control means for performing rotation control of the sprocket of the tape feeder attached to the slot and air injection control of the air injection means;
The feeder maintenance device, wherein the control means injects air from the air injection means while rotating the sprocket of the tape feeder.   In addition to the sprocket, the air ejecting means further includes a tension detection sensor for detecting the tension of the top tape of the tape feeder attached to the slot, and a top tape tensioner that pulls the top tape and accommodates it in a top tape recovery unit. 2. The feeder maintenance device according to claim 1, wherein air is jetted toward at least one of a splicing member detection sensor that detects a splicing member of the unit and the carrier tape.   The feeder maintenance apparatus according to claim 1, further comprising a housing that covers the slot, the air ejecting unit, and the tape feeder attached to the slot.

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