JP6276398B2 - Tape feeder - Google Patents

Description

  The present invention relates to a tape feeder that automates the operation of meshing sprocket teeth with a tape feed hole of a component supply tape.

  As this type of tape feeder, as described in Patent Document 1 (Japanese Patent Laid-Open No. 2013-98382), the sprocket has a meshing position and a tooth where the teeth mesh with the tape feed hole of the component supply tape. The feeder main body is provided with a vertical movement mechanism that moves up and down between the retraction position located below the tape feed hole, and when setting the component supply tape to the tape feeder, the sprocket is lowered to the retraction position and the component supply tape In some cases, after the sprocket is set above the sprocket, the operation of the vertical movement mechanism is controlled so as to raise the sprocket to the meshing position.

JP 2013-98382 A

  In Patent Document 1, when the sprocket is raised to the meshing position, the sprocket teeth are displaced from the position of the tape feed hole of the component supply tape, and the sprocket teeth mesh with the tape feed hole of the component supply tape. There is no possibility. Therefore, in Patent Document 1, when the sprocket teeth do not mesh with the tape feed holes of the component supply tape, the sprocket is rotated to mesh the sprocket teeth with the tape feed holes of the component supply tape.

  However, if the sprocket is rotated and the sprocket teeth are engaged with the tape feed holes of the component supply tape, the relationship between the sprocket rotation angle and the component position of the component supply tape will shift, and the suction nozzle of the component mounter will There is a possibility that when picking up parts on the parts supply tape, picking mistakes that fail to pick up parts may occur, or abnormal picking postures of the parts (abnormal picking, standing picking, side picking, etc.) may occur. .

  Accordingly, the problem to be solved by the present invention is that when the sprocket teeth are automatically meshed with the tape feed holes of the component supply tape, the rotation angle (tooth position) of the sprocket and the position of the component of the component supply tape ( It is to provide a tape feeder that can surely engage the sprocket teeth with the tape feed hole of the component supply tape without deviating the relationship with the position of the tape feed hole), and can prevent suction mistakes and abnormal suction. .

  In order to solve the above problems, the present invention rotates a sprocket with a motor while meshing the teeth of the sprocket with a tape feed hole formed along a side edge of a component supply tape in which a large number of components are arranged at a predetermined pitch. In the tape feeder for feeding the component supply tape to the component suction position, the sprocket has a meshing position where the teeth mesh with the tape feeding hole of the component feeding tape, and the teeth are below the tape feeding hole. A vertical movement mechanism that moves up and down between the retracted position, and when the component supply tape is set in the tape feeder, the sprocket is lowered to the retracted position and the component supply tape is set above the sprocket. And a control means for controlling the operation of the vertical movement mechanism so as to raise the sprocket to the meshing position later. The control means drives the sprocket motor initially to rotate the sprocket to the initial position before the sprocket is raised to the meshing position by the vertical movement mechanism, and then the sprocket is rotated by the vertical movement mechanism. Is raised to the meshing position.

  In this configuration, before the sprocket is raised to the meshing position by the vertical movement mechanism, the sprocket motor is initially driven to rotate the sprocket to the initial position, and then the sprocket is raised to the meshing position by the vertical movement mechanism. Therefore, when the sprocket teeth are automatically meshed with the tape feed holes of the component supply tape, the relationship between the sprocket rotation angle (tooth position) and the component supply tape component position (tape feed hole position) Without slipping, the sprocket teeth can be reliably meshed with the tape feed hole of the component supply tape, and suction errors and abnormal suction can be prevented.

  In the present invention, the work of setting the component supply tape to the tape feeder may be performed with the tape feeder removed from the component mounting machine, but since the vertical movement mechanism for moving the sprocket up and down is provided, the component mounting It is also possible to configure so that the component supply tape can be set in the tape feeder with the tape feeder attached to the machine.

  Specifically, a feeder main body provided with a sprocket, a vertical movement mechanism and a control means, and a tape supplier for supplying a component supply tape drawn from the tape reel to a component suction position, the tape reel and the tape supplier, The tape supplier is configured to be detachably set, and the tape supplier positions the component supply tape set in the tape supplier so that the tape feed hole meshes with the sprocket teeth rotated to the initial position. It is also possible to provide engagement means for engaging and holding. In this configuration, when replacing the component supply tape, the component supply tape pulled out from the new tape reel after removing the tape reel and the tape supplier from the feeder main body with the feeder main body attached to the component mounter. If these are mounted on the feeder body while being held by the tape supplier, the teeth of the sprocket can be automatically meshed with the tape feed holes of the component supply tape by the automatic meshing operation. In addition, the component supply tape is positioned by the engagement means so that the tape feed hole of the component supply tape set in the tape supplier meshes with the sprocket teeth rotated to the initial position. When the component supply tape is set on the component supply tape, the component supply tape can be easily positioned and the position of the tape feed hole of the component supply tape can be prevented from shifting.

  In this case, the feeder main body is provided with a plurality of sprockets and vertical movement mechanisms, and a plurality of tape suppliers are detachably attached to the feeder main body, and the parts supplied to each tape supplier are supplied. You may comprise so that the tooth | gear of each sprocket may mesh | engage with the tape feed hole of a tape. In this way, out of a plurality of component supply tapes set on the feeder body attached to the component mounter, only the component supply tape that has run out of parts is removed from the feeder body together with the tape supplier, and a new part Can be replaced with supply tape.

FIG. 1 is a perspective view of the entire tape feeder in one embodiment of the present invention. FIG. 2 is a perspective view (No. 1) of the feeder body. FIG. 3 is a perspective view (part 2) of the feeder body. FIG. 4 is a perspective view of the tape supplier. FIG. 5 is a perspective view (No. 1) showing the drive device for the cover tape feed gear and its peripheral portion. FIG. 6 is a perspective view (No. 2) showing the drive device for the cover tape feed gear and its peripheral portion. FIG. 7 is a perspective view of the tip portion of the feeder body. FIG. 8 is a perspective view showing the front end portion of the feeder body with the front end cover plate removed. FIG. 9 is a perspective view (No. 1) of two sprocket drive units. FIG. 10 is a perspective view (No. 2) of two sprocket drive units. FIG. 11 is a perspective view showing a state where the sprocket drive unit is removed from the feeder body. FIG. 12 is a perspective view showing a structure for attaching the sprocket drive unit to the feeder body. FIG. 13 is a right side view showing the configuration of the device for driving the sprocket. FIG. 14 is a left side view showing the configuration of the device for driving the sprocket. FIG. 15 is an enlarged sectional view showing a structure in which each gear of the spur gear train is supported by a bearing. FIG. 16 is a perspective view of the feeder mounting table of the component mounting machine. FIG. 17 is a perspective view showing the configuration of the lower surface side of the operation panel of the feeder body. FIG. 18 is an enlarged perspective view of the handle portion of the tape supplier and its peripheral portion. FIG. 19 is a block diagram showing the configuration of the control system of the tape feeder. FIG. 20 is an enlarged plan view of the tape engaging portion and its peripheral portion of the tape supplier. 21 (a) to 21 (c) are diagrams for explaining the automatic meshing operation. FIG. 22 is a flowchart showing the flow of processing of the automatic meshing operation control program.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment embodying a mode for carrying out the present invention will be described with reference to the drawings.
First, the configuration of the tape feeder 11 will be described.

  The tape feeder 11 is a conventional general tape feeder having a lateral width of the feeder body 13 (a tape feeder capable of setting only one component supply tape) so that a plurality of component supply tapes 12 can be set side by side in the horizontal width direction. It is formed to be approximately a plurality of times the horizontal width. In this embodiment, by reducing the interval between the adjacent component supply tapes 12, the width of the feeder main body 13 is, for example, approximately four times (approximately M times) the width of a conventional general tape feeder, and six ( N parts, where N is an integer greater than M) can be set side by side in the width direction. Although not shown in detail, the component supply tape 12 stores components in component storage recesses (cavities) formed in a line at a predetermined pitch on the carrier tape, and a top tape (also referred to as a cover tape) on the upper surface of the carrier tape. The tape feed holes 12a (see FIG. 20) are formed in a line along the side edge of the component supply tape 12 at a predetermined pitch.

  A handle 14 and an operation panel 15 are provided at the upper part of the rear side (removal direction side) of the feeder main body 13, and a reel holder for storing a tape reel 16 around which the component supply tape 12 is wound. 17 is provided. The reel holder 17 is formed so as to store a plurality of tape reels 16 arranged in two rows in the front and rear, and is stored so that each tape reel 16 can be rotated in the reel holder 17 as the component supply tape 12 is pulled out. . The operation panel 15 is provided with operation keys for inputting various operation signals such as a tape supplier mounting work start signal for each sprocket drive unit 41 (each tape supplier 21) to be described later.

  The component supply tape 12 drawn out from each tape reel 16 is set in the tape supplier 21. Each tape supplier 21 is configured to be detachably attached to the feeder body 13, and the width of each tape supplier 21 is the component supply so that only one component supply tape 12 is set in each tape supplier 21. The dimension is slightly larger than the width of the tape 12.

  As shown in FIG. 4, a reel hooking portion 22 for holding the tape reel 16 on the tape supplier 21 removed from the feeder main body 13 is provided at the rear end portion of each tape supplier 21. The tape reel 16 can be hooked and held.

  The tape supplier 21 is provided with a cover tape peeling device 23 that peels off the cover tape that covers the upper surface of the component supply tape 12, and a cover tape collection case 24 that collects the cover tape peeled off from the component supply tape 12. . The cover tape peeling device 23 includes a peeling roller 25, a tension roller 26, and a pair of cover tape feed gears 28 and 29. The cover tape peeled off by the peeling roller 25 is passed over the tension roller 26 and covered with the cover tape. It is sandwiched between the feed gears 28 and 29 and fed into the cover tape collecting case 24.

  The drive source of the cover tape feed gears 28 and 29 is provided on the feeder main body 13 side, and when the tape supplier 21 is attached to the feeder main body 13, one cover tape feed gear 28 is the drive gear 34 (see FIG. 5), the cover tape feed gears 28 and 29 are rotationally driven.

  A drive device 31 for driving the cover tape feed gears 28 and 29 is provided above the mounting space of the tape supplier 21 in the feeder main body 13. The drive device 31 includes a motor 33 that rotationally drives a bevel gear 32 (see FIG. 6) and a drive gear 34 that is rotationally driven by the bevel gear 32, and the drive gear 34 is connected to one cover tape feed gear 28. The both cover tape feed gears 28 and 29 are rotationally driven by meshing. The motor 33, the bevel gear 32, and the drive gear 34 are provided in the same number as the number of tape suppliers 21 that can be mounted on the feeder main body 13, and the cover tape feed amount (peeling amount) is independently provided for each tape supplier 21. ) Can be controlled.

  As shown in FIG. 4, the tape supplier 21 has a plurality of horizontal U-shaped tape holding portions 37 and 38 that hold only one side in the width direction of the component supply tape 12 on one side in the width direction of the component supply tape 12. Are alternately arranged in a zigzag pattern on the other side, and the tape holding portions 37 and 38 are supplied to the parts so as to hold the parts supply tape 12 while meandering the parts supply tape 12 slightly in the width direction (or obliquely tilting). The component supply tape 12 can be held with a smaller width by being arranged little by little inward in the width direction of the tape 12.

  In the tape holding portion 38 on the front end side of the tape supplier 21, the component supply tape 12 set in the tape supplier 21 is positioned so that the tape feed hole 12a meshes with the teeth of the sprocket 42 rotated to the initial position described later. An engaging claw 38a (see FIG. 20), which is an engaging means for engaging and holding, is provided, and the component supply tape 12 is engaged and held by the engagement claw 38a being caught in the tape feed hole 12a of the component supply tape 12. The The engaging force by the engaging claw 38a is set to be weak, and when the component supply tape 12 is driven in the tape feeding direction by the rotation of the sprocket 42, the engaging claw 38a caught in the tape feeding hole 12a of the component feeding tape 12 is removed. The component supply tape 12 is easily removed from the tape feed hole 12a and fed in the tape feed direction.

  The same number of sprocket drive units 41 as the number of component supply tapes 12 that can be set on the feeder body 13 are arranged side by side in the width direction on the front end side of the feeder body 13. As will be described later, the sprocket drive mechanism 45 of each sprocket drive unit 41 is connected to the elevating lever 30 (see FIGS. 9, 10, and 12) via the sprocket 42 and the sprocket 42 via a spur gear train 43 (gear mechanism). The motor 44 and the like to be driven are assembled, and these move up and down integrally with the shaft 51 as a fulcrum. Each sprocket 42 is disposed at a position corresponding to each component supply tape 12 set in the feeder main body 13, and the sprocket 42 rotates by meshing the teeth of the sprocket 42 with the tape feed hole 12 a of each component supply tape 12. The component supply tape 12 is pitched toward the component suction position.

  In order to reduce the dimension in the width direction of each sprocket drive unit 41, the positions of the sprockets 42 of the two adjacent sprocket drive units 41 are shifted in the front-rear direction as shown in FIGS. By shifting the positions of the gears 43a of the spur gear train 43 of the two sprocket drive units 41, the empty space of each sprocket drive unit 41 is arranged with the gear 43a of the adjacent sprocket drive unit 41 protruding. It can be used effectively as a possible space.

  The sprocket drive mechanism 45 of each sprocket drive unit 41 uses a flat motor (DC servo motor, pulse motor, etc.) as the motor 44 for driving the sprocket 42, so that the rotation axis of the motor 44 is parallel to the axis of the sprocket 42. The power of the motor 44 is arranged and transmitted to the sprocket 42 by the spur gear train 43.

  As shown in FIGS. 7 and 8, the upper cover plate 39 covering the upper part of the sprocket drive unit 41 in the feeder main body 13 is a component for sucking the component of the component supply tape 12 by the suction nozzle of the component mounting machine. The component suction openings 40a and 40b that open the suction positions are formed in a staggered pattern. In the present embodiment, since a total of six component supply tapes 12 can be mounted on the feeder main body 13, a total of six component suction openings 40a and 40b are formed.

  As shown in FIG. 15, each gear 43 a of the spur gear train 43 and the sprocket 42 are rotatably supported by two bearings 46, and between the inner rings of the two bearings 46, an elastic material such as rubber and a spring washer is provided. The structure is configured such that an appropriate preload is applied to the bearing 46 by compressing the elastic member 47 by tightening a bearing retainer 48 that prevents the inner ring of the bearing 46 from slipping out by interposing the member 47. With this structure, the rotation transmission between the gears 43a of the spur gear train 43 and the sprocket 42 can be performed more smoothly, and the deterioration of the rotation accuracy due to the falling or swinging of the gear 43a can be prevented.

  Next, the configuration of a vertical movement mechanism that moves the sprocket drive mechanism 45 of each sprocket drive unit 41 up and down independently will be described.

  As shown in FIGS. 9, 10, and 12, the elevating lever 30 assembled with the sprocket drive mechanism 45 of each sprocket drive unit 41 can move up and down the sprocket 42 side with the shaft 51 as a fulcrum on the unit base 50. The sprocket 42 moves up and down between a meshing position where the teeth of the sprocket 42 are engaged with the tape feed hole 12a of the component supply tape 12 and a retracted position where the teeth of the sprocket 42 are located below the tape feed hole 12a. It is configured as follows. A guide pin 52 for guiding the vertical movement of the sprocket drive unit 41 is provided on the tip surface of each sprocket drive unit 41, and each guide pin 52 is fitted in each guide hole 53 (see FIG. 2) formed in the tip surface portion of the feeder body 13. As a result, the range in which each sprocket drive mechanism 45 can move up and down is restricted to the range between the meshing position and the retracted position.

  As shown in FIG. 12, each sprocket drive unit 41 is provided with a spring 55 (an elastic body such as a spring) as an urging means for urging the sprocket 42 side of the sprocket drive mechanism 45 upward with a shaft 51 as a fulcrum. ) And the sprocket drive mechanism 45 can be held in the meshing position which is the upper limit position by the elastic force of the spring 55. Each sprocket drive unit 41 is provided with a motor 56 as an actuator for lowering the sprocket drive mechanism 45 against the spring 55.

  Cams 57 are respectively fixed to the rotation shafts of the motors 56. Correspondingly, each sprocket drive mechanism 45 has an L-shaped cam contact member 58 that contacts the cam 57 from below. When the motor 56 is rotated to rotate the cam 57 to the lowest position (or a position in the vicinity thereof), the cam contact member 58 is integrated with the sprocket drive mechanism 45 against the spring 55. Pulled down, the sprocket drive mechanism 45 is held at the retracted position, which is the lower limit position. Thereafter, when the motor 56 is rotated to the original position and the cam 57 is returned to the uppermost position (or a position in the vicinity thereof), the sprocket drive mechanism 45 is moved by the elastic force of the spring 55 following the movement of the cam 57. Is pushed up and held at the fitting position which is the upper limit position. At this time, the sprocket drive mechanism 45 may be pushed up by the elastic force of the spring 55 by turning off the power to the motor 56 and releasing the driving force of the motor 56.

  A position detection dog 61 for detecting the position of the cam 57 is provided on the rotation shaft of each motor 56, and each position detection dog 61 is detected by each sprocket drive unit 41 correspondingly. A cam position sensor 62 (an optical sensor such as a photo interrupter or a non-contact type sensor such as a magnetic sensor) is provided, and each cam position sensor 62 changes the position of the cam 57 to a fitting position (uppermost position) / retraction position (lowermost position). ) Can be detected.

  Further, as shown in FIG. 14, each sprocket drive unit 41 has a mesh detection sensor 63 (photo interrupter or the like) as a mesh detection means for detecting that the sprocket 42 of the sprocket drive mechanism 45 has been raised to the mesh position. Non-contact sensors such as optical sensors and magnetic sensors). Each sprocket drive mechanism 45 is provided with a position detection dog 64 for detecting the meshing position, and the teeth of the sprocket 42 of any one of the sprocket drive mechanisms 45 mesh with the tape feed holes 12a of the component supply tape 12. When the sprocket 42 is raised to the engagement position, the position detection dog 64 of the sprocket drive mechanism 45 is detected by the engagement detection sensor 63 and a detection signal is output.

  In this case, the mesh detection sensor 63 detects the position detection dog 64 when the teeth of the sprocket 42 mesh with the tape feed hole 12a of the maximum thickness component supply tape 12 that can be set in the tape feeder 11, and the minimum thickness component. The length of the teeth of the sprocket 42, the mesh detection sensor 63 and the position detection dog so that the mesh detection sensor 63 does not detect the position detection dog 64 when the teeth of the sprocket 42 are not meshed with the tape feed hole 12a of the supply tape 12. 64 positions are set.

  A connector 67 for connecting a signal line and a power line of the feeder main body 13 to a connector 68 (see FIG. 16) of the feeder mounting table 66 of the component mounting machine and two positioning pins are provided on the front end surface of the feeder main body 13. 69 and 70 are provided, and the two positioning pins 69 and 70 are inserted into the positioning holes 71 and 72 (see FIG. 16) of the feeder mounting table 66 of the component mounting machine, so that the feeder main body 13 is mounted on the feeder mounting table 66. The attachment position is positioned, and the connector 67 of the feeder body 13 is inserted and connected to the connector 68 of the feeder mounting table 66.

  A guide groove 74 having an inverted T-shaped cross section for supporting the tape feeder 11 in a vertical position is provided on the upper surface of the feeder mounting table 66, and a guide rail having an inverted T-shaped cross section provided on the lower surface side of the feeder body 13. (Not shown) is inserted into the guide groove 74 from the front side, so that the tape feeder 11 is supported in a vertically placed state on the feeder mounting table 66 and a clamp member (not shown) provided on the feeder main body 13. ) Fits into the clamp groove 79 of the feeder mounting table 66 and presses the feeder main body 13 forward (to the connector 68 side of the feeder mounting table 66) to clamp the feeder main body 13 on the feeder mounting table 66. Positioned in the front-rear direction and detachably attached.

  A handle portion 76 is provided at the upper rear portion of the cover tape collecting case 24 of each tape supplier 21, and a positioning pin 77 (see FIG. 18) is provided at the front end portion of each handle portion 76. Correspondingly, a positioning hole 78 (see FIG. 17) is formed in the lower step portion of the operation panel 15 of the feeder main body 13, and when the tape supplier 21 is set in the feeder main body 13, The handle 76 is positioned with respect to the lower surface of the operation panel 15 by inserting the positioning pins 77 into the positioning holes 78 on the lower side of the operation panel 15.

  As shown in FIG. 18, an RF tag 81 (also referred to as an electronic tag, IC tag, radio wave tag, or wireless tag) storing identification information (hereinafter referred to as “supplier ID”) of the tape supplier 21 is provided on the upper surface of the handle portion 76. Is attached. The RF tag 81 may store component information of the component supply tape 12 in addition to the supplier ID or instead of the supplier ID.

  Correspondingly, a reader 82 (see FIG. 17) for reading the supplier ID stored in the RF tag 81 is provided on the lower surface of the operation panel 15 of the feeder main body 13, and the tape supplier 21 is set in the feeder main body 13. Then, when the positioning pin 77 of the handle portion 76 is inserted into the positioning hole 78 on the lower side of the operation panel 15, the RF tag 81 on the upper surface of the handle portion 76 faces the reader 82 on the lower surface of the operation panel 15. Then, the supplier ID stored in the RF tag 81 is read by the reader 82.

  The signal of the supplier ID output from the reader 82 is also used as a set confirmation signal for the tape supplier 21 to the feeder main body 13. By reading the supplier ID with the reader 82, the tape supplier 21 is set to the feeder main body 13. Is to check. Note that the reader 82 disposed on the lower surface side of the operation panel 15 only needs to be provided with at least the antenna of the reader 82, and the control circuit unit of the reader 82 is separated from the antenna and disposed in another part. Also good.

  On the other hand, as shown in FIG. 19, the feeder main body 13 is provided with a control device 84 (control means) that controls the operation of the motors 33, 44, 56, and the supplier ID read by the reader 82 is the control device 84. And transmitted from the control device 84 to the control device 85 of the component mounter via the connectors 67 and 68. The memory 86 of the control device 84 of the feeder main body 13 stores identification information (hereinafter referred to as “feeder main body ID”) of the feeder main body 13, and the feeder main body ID is also transmitted from the control device 84 via the connectors 67 and 68. To the control device 85 of the component mounting machine.

  Each sprocket drive unit 41 is also provided with an ID storage memory 87 that stores identification information of the sprocket drive unit 41 (hereinafter referred to as “sprocket drive unit ID”), and the controller 84 of the feeder body 13 controls each sprocket drive. The sprocket drive unit ID stored in the ID storage memory 87 of the unit 41 is read and transmitted to the control device 85 of the component mounting machine. Thus, the control device 85 of the component mounting machine can individually manage the tape supplier 21, the feeder body 13, and the sprocket drive unit 41 using the supplier ID, the feeder body ID, and the sprocket drive unit ID.

  When the operator operates the mounting operation start key of the operation panel 15 when setting the tape supplier 21 to the feeder main body 13, the control device 84 of the feeder main body 13 operates the motor 56 for the vertical movement of the sprocket drive mechanism section. The sprocket 42 is automatically lowered to the retracted position. In this state, the operator sets the tape supplier 21 on the feeder main body 13, and the component supplier tape 12 is set above the sprocket 42 by the tape supplier 21 as shown in FIG. Then, the controller 84 of the feeder main body 13 initially drives the motor 44 of the sprocket 42 at the retracted position to rotate the sprocket 42 to the initial position (forward rotation or reverse rotation), as shown in FIG. Then, the predetermined teeth of the sprocket 42 are positioned directly above the rotation center of the sprocket 42, and the predetermined teeth of the sprocket 42 are positioned directly below the tape feed hole 12 a of the component supply tape 12. Thereafter, the control device 84 of the feeder main body 13 confirms the completion of the setting of the tape supplier 21 to the feeder main body 13 (reading of the supplier ID is completed), and then, as shown in FIG. The sprocket drive mechanism section vertical movement motor 56 is controlled so as to be moved upward, and the detection signal output from the engagement detection sensor 63 is received so that the teeth of the sprocket 42 are engaged with the tape feed hole 12a of the component supply tape 12. Make sure.

  The automatic meshing operation of the present embodiment described above is executed as follows according to the automatic meshing operation control program of FIG. 22 by the control device 84 of the feeder main body 13. The automatic meshing operation control program of FIG. 22 is repeatedly executed for each sprocket drive unit 41 (each tape supplier 21) during the power-on period of the control device 84 of the feeder main body 13.

  When this program is started, it is first determined in step 101 whether or not a tape supplier mounting work start signal has been input (whether or not the operator has operated the mounting work start key on the operation panel 15). If the tape supplier mounting work start signal is not input, the process waits until the tape supplier mounting work start signal is input.

  Thereafter, when the tape supplier mounting work start signal is inputted, the automatic meshing operation processing after step 102 is executed as follows. First, in step 102, the vertical movement motor 56 of the sprocket drive mechanism section is operated to lower the sprocket drive mechanism section 45 against the spring 55 to lower the sprocket 42 to the retracted position.

  Thereafter, the process proceeds to step 103, where the motor 44 of the sprocket 42 is initially driven at the retracted position to rotate the sprocket 42 to the initial position (forward rotation or reverse rotation), and as shown in FIG. The predetermined teeth of 42 are put in a state of being positioned immediately above the rotation center of the sprocket 42.

  In the next step 104, whether or not the operator has completed the setting work of the tape supplier 21 to the feeder body 13 by whether or not the reader 82 of the feeder body 13 has read the supplier ID from the RF tag 81 of the tape supplier 21. (Whether the RF tag 81 of the tape supplier 21 faces the reader 82 of the feeder main body 13) is determined, and if the reader 82 of the feeder main body 13 has not read the supplier ID yet, it waits until the supplier ID is read.

  Thereafter, when the reader 82 of the feeder main body 13 reads the supplier ID from the RF tag 81 of the tape supplier 21, it is determined that the operator has completed the setting operation of the tape supplier 21 to the feeder main body 13, and the process proceeds to Step 105. The sprocket drive mechanism part vertical movement motor 56 is rotated to the original position and the cam 57 is returned to the uppermost position (or a position in the vicinity thereof). After the sprocket drive mechanism 45 is raised to the fitting position by force, the power supply to the motor 56 is turned off. At this time, the energization of the motor 56 for moving up and down the sprocket driving mechanism is turned off to release the driving force of the motor 56, whereby the sprocket driving mechanism 45 is raised to the fitting position by the elastic force of the spring 55. You may do it.

  Thereafter, the process proceeds to step 106, where it is determined whether or not the cam position sensor 62 has detected that the cam 57 has returned to the vicinity of the fitting position (uppermost position). If not, the system waits until the cam 57 returns to the vicinity of the fitting position (uppermost position). Alternatively, it is determined whether or not a predetermined time required for the sprocket 42 to move up to the fitting position has elapsed, and if the predetermined time has not yet elapsed, the system waits until the predetermined time elapses. good.

  Thereafter, when the cam position sensor 62 detects that the cam 57 has returned to the vicinity of the fitting position (uppermost position) (or when a predetermined time has elapsed), the routine proceeds to step 107 where the detection signal from the meshing detection sensor 63 is detected. It is determined whether or not the teeth of the sprocket 42 are engaged with the tape feed hole 12a of the component supply tape 12 based on whether or not the output is output. If it is determined that the detection signal is output from the engagement detection sensor 63, step 112 is performed. Then, it is determined that the teeth of the sprocket 42 are engaged with the tape feed hole 12a of the component supply tape 12 (automatic engagement is completed), and the automatic engagement operation is terminated.

  On the other hand, if it is determined in step 107 that a detection signal is not output from the mesh detection sensor 63, the process proceeds to step 108, where the component supply tape 12 is displaced and the teeth of the sprocket 42 are moved to the component supply tape. 12 is not engaged with the tape feed hole 12a, the process proceeds to step 109, the motor 44 is rotated in the reverse direction and the sprocket 42 is rotated in the reverse direction by a predetermined angle. It is determined whether or not a signal is output. If no detection signal is output, it is determined that the teeth of the sprocket 42 are not yet engaged with the tape feed hole 12a of the component supply tape 12, and the process returns to step 109 to return to the motor. The process of reversely rotating 44 to reversely rotate the sprocket 42 by a predetermined angle is repeated. Thus, until the detection signal is output from the mesh detection sensor 63, the process of rotating the sprocket 42 reversely by a predetermined angle by the motor 44 is repeated, and when the detection signal is output from the mesh detection sensor 63, the sprocket 42 teeth. Is engaged with the tape feed hole 12a of the component supply tape 12, the process proceeds to step 111, the motor 44 is rotated forward by the reverse rotation angle, and the sprocket 42 is rotated forward by the reverse rotation angle. Is returned to the initial position, and the process proceeds to step 112 where it is determined that the automatic meshing is completed and the automatic meshing operation is terminated.

  According to the present embodiment described above, before the sprocket 42 is raised to the meshing position by the vertical movement mechanism, the motor 44 of the sprocket 42 is initially driven to rotate the sprocket 42 to the initial position, and then the vertical movement mechanism Since the sprocket 42 is raised to the meshing position, when the teeth of the sprocket 42 are automatically meshed with the tape feed holes 12a of the component supply tape 12, the rotation angle (tooth position) of the sprocket 42 and the component supply tape are used. Thus, the sprocket 42 teeth can be reliably meshed with the tape feed hole 12a of the component supply tape 12 without shifting the relationship with the position of the 12 parts (the position of the tape feed hole 12a). Can be prevented.

  Furthermore, in this embodiment, the tape reel 16 and the tape supplier 21 are configured to be detachably attached to the feeder main body 13, so that when the component supply tape 12 is replaced, the feeder main body 13 is attached to the component mounting machine. After the tape reel 16 and the tape supplier 21 are removed from the feeder main body 13 in the state of being attached, the component supply tape 12 pulled out from the new tape reel 16 is held by the tape supplier 21, and these are supplied to the feeder. When mounted on the main body 13, the teeth of the sprocket 42 can be automatically meshed with the tape feed hole 12a of the component supply tape 12 by the automatic meshing operation, and the replacement work of the component supply tape 12 can be easily performed.

  In this embodiment, the feeder main body 13 is provided with a plurality of sprocket drive units 41, and a plurality of tape suppliers 21 are detachably attached to the feeder main body 13, and are set in the respective tape suppliers 21. Since the teeth of the sprocket 42 of each sprocket drive unit 41 are meshed with the tape feed holes 12a of the component supply tape 12, a plurality of sets set on the feeder main body 13 attached to the feeder mounting table 66 of the component mounting machine. Among the component supply tapes 12, there is an advantage that only the component supply tape 12 that has run out of components can be removed from the feeder body 13 together with the tape supplier 21 and replaced with a new component supply tape 12.

  However, the present invention may be configured such that only one sprocket drive unit 41 is provided in the feeder main body 13 and only one tape supplier 21 is detachably attached to the feeder main body 13.

  In this embodiment, the feeder main body 13 is provided with the reel holder 17 for collectively storing a plurality of tape reels 16. However, each tape supplier 21 is provided with a reel holder for storing one tape reel 16. It is good also as a composition.

  In addition, the feeder body is configured to be separable into a feeder base that can be detachably attached to a feeder mounting table of a component mounting machine and a plurality of feeder units, and a plurality of feeder units can be individually attached to and detached from a plurality of slots of the feeder base. In addition, the tape supplier may be set in each feeder unit.

  In addition, the present invention is not limited to the above-described embodiments. For example, the number of tape suppliers 21 (the number of sprocket drive units 41) that can be mounted on the feeder body 13 is changed, or the sprocket drive mechanism is slid in the vertical direction. It goes without saying that various modifications can be made without departing from the scope of the invention, such as a configuration in which it can be moved.

  DESCRIPTION OF SYMBOLS 11 ... Tape feeder, 12 ... Component supply tape, 12a ... Tape feed hole, 13 ... Feeder main body, 14 ... Handle part, 15 ... Operation panel, 16 ... Tape reel, 17 ... Reel holder, 21 ... Tape supplier, 22 ... Reel Hook, 23 ... Cover tape peeling device, 24 ... Cover tape collecting case, 25 ... Stripping roller, 28, 29 ... Cover tape feed gear, 31 ... Drive device, 33 ... Motor, 34 ... Drive gear, 37, 38 ... Tape Holding part, 41 ... sprocket drive unit, 42 ... sprocket, 43 ... spur gear train (gear mechanism), 43a ... gear, 44 ... motor, 45 ... sprocket drive mechanism part, 46 ... bearing, 47 ... elastic member, 48 ... bearing Presser, 49 ... Screw, 51 ... Shaft, 52 ... Guide pin, 53 ... Guide hole, 55 ... Spring, 56 ... Motor, DESCRIPTION OF SYMBOLS 7 ... Cam, 58 ... Cam contact member, 61 ... Position detection dog, 62 ... Cam position sensor, 63 ... Meshing detection sensor, 64 ... Position detection dog, 66 ... Feeder mounting base, 67, 68 ... Connector, 69, 70 ... Positioning pins, 71, 72 ... Positioning holes, 74 ... Guide grooves, 76 ... Handles, 77 ... Positioning pins, 78 ... Positioning holes, 81 ... RF tags, 82 ... Readers, 84 ... Control devices (control means) ), 85... Control device for component mounting machine, 86... Memory, 87.

Claims (3)

The sprocket is rotated by a motor while meshing the teeth of the sprocket with a tape feed hole formed along the side edge of the component supply tape in which a large number of parts are arranged at a predetermined pitch, and the component supply tape is sent to the component suction position. In the tape feeder,
A vertical movement mechanism for moving the sprocket up and down between a meshing position where the teeth mesh with a tape feed hole of the component supply tape and a retracted position where the teeth are located below the tape feed hole;
When the component supply tape is set on the tape feeder, the vertical movement mechanism is configured to lower the sprocket to the retracted position and set the component supply tape above the sprocket and then raise the sprocket to the meshing position. Control means for controlling the operation of
The control means drives the sprocket motor initially to rotate the sprocket to the initial position before raising the sprocket to the meshing position by the vertical movement mechanism, and then moves the sprocket by the vertical movement mechanism. A tape feeder which is raised to the meshing position. A feeder body provided with the sprocket, the vertical movement mechanism and the control means;
A tape supplier for guiding a component supply tape drawn from the tape reel to the component suction position;
The tape reel and the tape supplier are configured to be detachably set to the feeder body,
The tape supplier is provided with engagement means for positioning and holding the component supply tape set in the tape supplier so that the tape feed hole meshes with the sprocket teeth rotated to the initial position. The tape feeder according to claim 1. The feeder body is provided with a plurality of the sprockets and the vertical movement mechanisms, respectively.
A plurality of tape suppliers are detachably attached to the feeder body, and each sprocket tooth is engaged with a tape feed hole of a component supply tape set in each tape supplier. The tape feeder according to claim 2.

Images