JP7308387B2 - tape feeder - Google Patents

Description

TECHNICAL FIELD The present invention relates to a tape feeder that feeds components by transporting a carrier tape having a plurality of protrusions having spaces for accommodating components arranged in the longitudinal direction, and more particularly, to a tape feeder that feeds components by feeding both ends of the carrier tape in the width direction by left and right sprockets. The present invention relates to a tape feeder that drives and conveys a carrier tape.

A tape feeder that functions as a component supply unit in a component mounting apparatus supplies components to a predetermined component supply position by feeding and conveying a carrier tape that has a plurality of projections that are arranged in the longitudinal direction and that have spaces for accommodating components, using sprockets. do. When the size of the component to be supplied is small and the dimension of the carrier tape in the width direction is small, the tape feeder feeds the carrier tape through a feed hole provided at one end in the width direction of the carrier tape with one sprocket. transport.

On the other hand, when the size of the parts to be supplied is large and the size of the protrusion is large, a tape feeder having two sprockets arranged opposite to each other on the left and right is used. The carrier tape has feed holes at both ends in the width direction, and the tape feeder supports both ends of the carrier tape from below with the tape support surfaces arranged on the left and right, and the sprockets on the left and right. The carrier tape is transported by feeding the feed holes at both ends at the same time. In such a tape feeder, two left and right sprockets are connected at their centers by a single shaft member, and are configured to rotate in the same direction and synchronously by a motor (for example, the following (see Patent Document 1).

Japanese Patent No. 4795310

However, in the tape feeder configured such that the centers of the left and right sprockets are connected by the shaft member, if the height dimension of the projection of the carrier tape is larger than the radius of the sprocket, the projection may interfere with the shaft member. there were. In order to avoid such interference, the radius of the sprocket must be increased, resulting in the problem of increasing the size of the entire tape feeder.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a tape feeder capable of conveying a carrier tape having projections with a large height dimension while having a compact structure.

The tape feeder of the present invention is a tape feeder that conveys a carrier tape in which a plurality of protrusions having spaces for accommodating components are arranged in the longitudinal direction and a plurality of feed holes are arranged in the longitudinal direction at both ends in the width direction, left and right tape support surfaces that support the both ends of the carrier tape from below; left and right sprockets for engaging feed pins on the outer periphery with feed holes; shaft members provided below the left and right sprockets; motors for generating power for rotating the left and right sprockets; and a second transmission gear that transmits the power to the other of the left and right sprockets via the shaft member provided in the first transmission gear mechanism. mechanism.

Another tape feeder of the present invention is a tape feeder that conveys a carrier tape having a plurality of projections with spaces for storing components and supplies the components to a component mounting apparatus, wherein a first sprocket that engages with one of the feed holes provided at a predetermined pitch and rotates in the feed direction to convey the carrier tape; and a first sprocket provided on both sides of the carrier tape at a predetermined pitch. a second sprocket that engages with the other of the feed holes and rotates in the feed direction to convey the carrier tape; , a first transmission gear mechanism for transmitting the power to the first sprocket, and a shaft member provided in the first transmission gear mechanism to transmit the power to the A second transmission gear mechanism is provided for transmission to a second sprocket, wherein the shaft member is located off-center between the first sprocket and the second sprocket.

ADVANTAGE OF THE INVENTION According to this invention, the carrier tape with a large height dimension of a protrusion can be conveyed with compact structure.

FIG. 1 is a side view of a main part of a component mounting apparatus provided with a tape feeder according to Embodiment 1 of the present invention; FIG. 1 is a side view of the tape feeder according to Embodiment 1 of the present invention; FIG. 2 is a perspective view showing part of the carrier tape conveyed by the tape feeder according to Embodiment 1 of the present invention; 1 is a perspective view of a tape feeder according to Embodiment 1 of the present invention; FIG. 1 is an exploded perspective view of a tape feeder according to Embodiment 1 of the present invention; FIG. 1 is a side view of part of the tape feeder according to Embodiment 1 of the present invention; FIG. FIG. 2 is a perspective view of a carrier tape feeding mechanism included in the tape feeder according to Embodiment 1 of the present invention; FIG. 2 is a schematic diagram of gear arrangement for explaining the transmission path of the torque of the motor provided in the tape feeder according to Embodiment 1 of the present invention; 1 is an exploded perspective view of a tape feeder according to Embodiment 1 of the present invention; FIG. A side view of a tape feeder according to Embodiment 2 of the present invention

(Embodiment 1)
FIG. 1 shows a component mounting apparatus 1 according to Embodiment 1 of the present invention. The component mounting apparatus 1 includes a base 11, a board transfer section 12, a tape feeder 13, a head moving mechanism 14, a mounting head 15 and a component camera 16, and mounts components BH on the board KB sent from the upstream process side. The component mounting work of mounting and carrying out to the downstream process side is repeatedly executed. In the first embodiment, for convenience of explanation, the horizontal direction viewed from the operator OP is the X-axis direction, the front-rear direction viewed from the operator OP is the Y-axis direction, and the vertical direction is the Z-axis direction. Further, in the Y-axis direction, the back side seen from the operator OP is called the front side, and the front side is called the rear side.

In FIG. 1, the substrate transfer section 12 includes a pair of belt conveyors 12a extending on the base 11 in the X-axis direction. The substrate transport unit 12 simultaneously operates the pair of belt conveyors 12a to transport the substrate KB in the X-axis direction and position the substrate KB at a predetermined work position. In FIG. 1, a feeder carriage 21 is connected to the rear end portion of the base 11 in the Y-axis direction (the end portion on the near side as seen from the operator OP). The feeder carriage 21 is movable on the floor surface F, and has a feeder base 22 on its top.

1 and 2, the tape feeder 13 is held by the feeder base 22. As shown in FIG. A rail-shaped slot engaging portion 13S (FIG. 2) extending in the Y-axis direction is provided on the lower surface of the tape feeder 13. As shown in FIG. On the other hand, on the upper surface of the feeder base 22, a plurality of slot forming members 22B (FIG. 2) extending in the Y-axis direction are arranged side by side in the X-axis direction, and between the slot forming members 22B adjacent in the X-axis direction. A slot (not shown) is formed. When attaching the tape feeder 13 to the feeder base 22 , the slot engaging portion 13 S provided on the tape feeder 13 is engaged with the slot formed on the upper surface of the feeder base 22 . A plurality of tape feeders 13 attached to the feeder base 22 are connected to the base 11 by connecting the feeder carriage 21 to the base 11 .

In FIG. 1, a reel 24 around which a carrier tape 23 is wound is rotatably held on a feeder carriage 21 . As shown in FIG. 3, the carrier tape 23 has a configuration in which a top tape 32 is attached to the upper surface of a base tape 31 . The base tape 31 is provided with a plurality of projections 23P having a downwardly recessed shape and arranged at regular intervals in the longitudinal direction. In addition, at both ends of the base tape 31 in the width direction, a plurality of feed holes 23H are arranged at regular intervals in the longitudinal direction of the carrier tape 23 (that is, parallel to the rows of the protrusions 23P). It is Each projection 23P accommodates one component BH, which is enclosed in the projection 23P by a top tape 32. - 特許庁In Embodiment 1, the carrier tape 23 is of an embossed type with a large height dimension of the projections 23P. That is, the carrier tape 23 has a plurality of protrusions 23P having spaces for accommodating the components BH arranged in the longitudinal direction, and a plurality of feed holes 23H arranged in the longitudinal direction at both ends in the width direction.

In FIG. 2, the tape feeder 13 internally has a tape transport path 13L extending from the rear to the front. The tape feeder 13 has a tape insertion opening 13G connected to the tape transport path 13L at its rear end, and a component supply position 13a as a position for supplying components BH is set at the upper front end (see also FIG. 1). . The tape feeder 13 supplies the component BH to the component supply position 13a by transporting the carrier tape 23 inserted into the tape transport path 13L from the tape insertion port 13G forward from the rear. Details of the configuration and operation of the tape feeder 13 will be described later. The tape transport path 13L is a space inside the tape feeder 13 through which the carrier tape 23 passes.

In FIG. 1, the head moving mechanism 14 is composed of, for example, an orthogonal coordinate robot, and moves the mounting head 15 within a horizontal plane. A plurality of nozzles 15a are mounted downward on the mounting head 15 (see also FIGS. 2 and 3). Each nozzle 15 a can be moved in the Z-axis direction and rotated about the Z-axis with respect to the mounting head 15 by a nozzle drive mechanism (not shown) incorporated in the mounting head 15 .

The mounting head 15 has a suction mechanism (not shown) that generates a vacuum suction force at the lower end of each nozzle 15a. The mounting head 15 operates the suction mechanism in a state in which the lower end of the nozzle 15a is brought close to the component BH supplied to the component supply position 13a by the tape feeder 13 from above, thereby generating a suction force at the lower end of the nozzle 15a. picks up the part BH (FIG. 3).

In FIG. 1, the component camera 16 is attached to the base 11 with the imaging field of view directed upward. The mounting head 15 picking up the component BH passes above the component camera 16 and causes the component camera 16 to image the component BH.

In FIG. 1, each operation of the board transfer section 12, each tape feeder 13, the head moving mechanism 14, the mounting head 15, and the component camera 16 is controlled by the controller CTR provided in the component mounting apparatus 1. FIG. The substrate transfer unit 12 is controlled by the control device CTR to transfer and position the substrate KB, and each tape feeder 13 supplies the components BH. The head moving mechanism 14 moves the mounting head 15, and the mounting head 15 lifts and rotates the nozzle 15a, and picks up the component BH with the nozzle 15a. The component camera 16 performs an imaging operation of the component BH, and transmits image data obtained by imaging to the control device CTR. The control device CTR recognizes the parts based on the image data of the parts BH sent from the parts camera 16 .

When the component mounting apparatus 1 performs the component mounting work, first, the board transfer section 12 operates to receive the board KB sent from the upstream process side and position it at a predetermined position. After the board transfer section 12 has positioned the board KB, the tape feeder 13 supplies the component BH to the component supply position 13 a , and the head moving mechanism 14 moves the mounting head 15 above the tape feeder 13 . The mounting head 15 moved above the tape feeder 13 picks up the component BH by adsorbing it to the lower end of the nozzle 15a.

After picking up the component BH, the mounting head 15 moves above the component camera 16, and the component camera 16 images the component BH from below. When image data obtained by imaging by the component camera 16 is transmitted to the control device CTR, the control device CTR recognizes the component based on the image data. Then, based on the component recognition result, the head moving mechanism 14 is operated to move the mounting head 15 above the component mounting position set on the board KB.

The mounting head 15 moved above the component mounting position lowers the nozzle 15a to mount the component BH at the component mounting position. When all the components BH to be mounted on the board KB are mounted by repeatedly performing such a series of component mounting operations, the board transfer section 12 operates to carry out the board KB to the downstream process side. This completes the component mounting work for each board KB.

Next, the configuration and operation of the tape feeder 13 will be described. 4, the tape feeder 13 includes left and right side frames 41, a connecting member 42, a feeder fixing portion 43, a carrier tape feeding mechanism 44, a tape pressing member 45, a tape introduction guide 46, and a top tape peeling unit 47 ( See also Figure 2).

4 and 5, the left and right side frames 41 are composed of a left side frame 41L located on the left side and a right side frame 41R located on the right side. Each side frame 41 has a shape that spreads in the Y-axis direction and the Z direction as a whole.

4 and 5, projecting portions 41H that project toward the sides facing each other are provided on the inner surfaces (surfaces facing each other) of the left and right side frames 41, respectively. The upper surfaces of the projecting portions 41H of the left and right side frames 41 are tape support surfaces 41M that support both ends of the carrier tape 23 from below. The left and right tape support surfaces 41M of the left and right side frames 41 constitute the tape transport path 13L.

4 and 5, the connecting member 42 has a spacer 42S and a plurality of connecting bars 42B. The spacer 42S is composed of a block-shaped member positioned between the left and right side frames 41 (more specifically, between the left and right projecting portions 41H). The left side frame 41L is attached to the left side of the spacer 42S, and the right side frame 41R is attached to the right side of the spacer 42S, whereby the left and right side frames 41 are connected to each other. A plurality of connecting bars 42B connect the front and rear portions of the left and right side frames 41 connected via spacers 42S.

Each member (the spacer 42S and the plurality of connecting bars 42B, respectively) constituting the connecting member 42 is detachable from the left and right side frames 41 . Therefore, by replacing the connecting member 42 with a member having a different dimension in the left-right direction, the interval between the left and right side frames 41 can be changed, and the size of the carrier tape 23 to be conveyed can be changed (changed in the width direction). ), the interval between the left and right side frames 41 can be changed.

In FIG. 5, the aforementioned slot engaging portion 13S is provided at the front portion of the lower surface of the spacer 42S. The feeder fixing portion 43 is provided on the rear portion of the lower surface of the spacer 42S and has a locking hook 43F operated by the operator OP (FIG. 2). The locking hook 43F is operated by operating the operating lever 43L.

In FIG. 2, the rear portion of the feeder base 22 is provided with a locking bar 22P extending in the X-axis direction. When the tape feeder 13 is attached from behind the feeder base 22 with the slot engaging portion 13S engaged with the slot, the locking hook 43F is positioned behind the locking bar 22P. After attaching the tape feeder 13 to the feeder base 22, the operator OP operates the operation lever 43L to operate the locking hook 43F (arrow Y shown in FIG. 2) to lock the locking hook 43F. It can be locked to the bar 22P (Fig. 2). The tape feeder 13 is thereby firmly fixed to the feeder base 22 .

6 and 7, the carrier tape feed mechanism 44 includes left and right sprockets 51, a shaft member 52, a motor 53, and left and right transmission gear mechanisms 54. As shown in FIG. The left and right sprockets 51 are composed of a left sprocket 51L and a right sprocket 51R, which are provided facing each other in the left and right direction with the rotation axis 51J extending in the left and right direction. 4 and 5, the left sprocket 51L is built in the projecting portion 41H of the left side frame 41L, and the right sprocket 51R is built in the projecting portion 41H of the right side frame 41R.

3, 6 and 7, each of the left and right sprockets 51 has a feed pin 51P on its outer periphery, and the top feed pin 51P protrudes into the tape transport path 13L. Therefore, in a state in which both ends of the carrier tape 23 are supported by the left and right tape support surfaces 41M, the feed pins 51P positioned at the top of the left and right sprockets 51 respectively move the left and right feed pins of the carrier tape 23. It is in a state of being fitted into the hole 23H from below.

As described above, the tape feeder 13 according to Embodiment 1 includes the left and right side frames 41 that are arranged to face each other in the left and right direction, and the connecting member 42 that connects the left and right side frames 41 . Both ends of the carrier tape 23 are supported from below by left and right tape support surfaces 41M formed on the inner surface side. In the left and right side frames 41, the carrier tape 23 is arranged to be opposed to the left and right, and both ends are supported by the left and right tape support surfaces 41M. Left and right sprockets 51 for engaging pins 51P are provided.

6 and 7, the shaft member 52 is provided below the left and right sprockets 51 so as to extend in the left-right direction. A shaft driving gear 52</b>C that rotates together with the shaft member 52 is provided in the intermediate portion of the shaft member 52 .

In FIGS. 4, 5 and 7, the motor 53 is built in the protruding portion 41H of one side frame 41 (here, the protruding portion 41H of the right side frame 41R). The motor 53 has a function of generating power to rotate the left and right sprockets 51 . As shown in FIG. 7, the output shaft 53J of the motor 53 extends in the left-right direction, and a drive gear 53G is attached to the tip of the output shaft 53J. As shown in FIGS. 6 and 7, the drive gear 53G is in mesh with the shaft drive gear 52C (see also FIG. 8), and the motor 53 applies rotational force to the shaft member 52 via the drive gear 53G and the shaft drive gear 52C. can give

In FIGS. 6 and 7, the left and right transmission gear mechanisms 54 are built in the projecting portions 41H of the left and right side frames 41, respectively. As shown in FIGS. 7 and 8, the left and right transmission gear mechanisms 54 each include an input gear 61, an idle gear 62, and a sprocket gear 63. As shown in FIG.

In FIG. 7, the left and right input gears 61 are arranged to face each other in the left-right direction with their rotational axes facing left and right. The left and right input gears 61 each have recesses 61H having recessed shapes on the surfaces facing each other (see also FIG. 5). Both ends of the shaft member 52 are fitted into the left and right recesses 61H of the left and right input gears 61 (FIGS. 7 and 8).

In FIG. 7, the left and right idle gears 62 are arranged facing each other in the left-right direction with their rotational axes oriented in the left-right direction. The left idle gear 62 meshes with the left input gear 61, and the right idle gear 62 meshes with the right input gear 61 (see also FIGS. 6 and 8).

In FIG. 7, the left sprocket gear 63 is provided coaxially and integrally with the left sprocket 51L, and the right sprocket gear 63 is provided coaxially and integrally with the right sprocket 51R. The left sprocket gear 63 meshes with the left idle gear 62, and the right sprocket gear 63 meshes with the right idle gear 62 (see also FIGS. 6 and 8).

When the carrier tape 23 pulled out from the reel 24 is inserted into the tape transport path 13L from the tape insertion opening 13G (FIGS. 2 and 4), both ends in the width direction of the carrier tape 23 are supported by the left and right tape support surfaces 41M. Feed pins 51P positioned at the top of the left and right sprockets 51 are supported from below and engaged with the left and right feed holes 23H from below (FIGS. 3 and 6). As shown in FIGS. 4 and 5, the left and right tape pressing members 45 are provided on the upper front ends of the left and right side frames 41 so as to extend in the front-rear direction. The left and right tape pressing members 45 press from above the areas where the feed pins 51P of the left and right sprockets 51 on both ends of the carrier tape 23 are engaged (FIGS. 2 and 6).

6, when the motor 53 rotates the output shaft 53J counterclockwise (arrow R1) with the feed pins 51P of the left and right sprockets 51 engaged with the left and right feed holes 23H of the carrier tape 23, the drive gear 53G rotates counterclockwise together with the output shaft 53J (arrow R1). As a result, the shaft drive gear 52C meshing with the drive gear 53G rotates clockwise (arrow R2), and the shaft member 52 integrally formed with the shaft drive gear 52C rotates clockwise (arrow R3).

In FIG. 6, when the shaft member 52 rotates clockwise, the left and right input gears 61 rotate clockwise together with the shaft member 52 (arrow R3), and the left and right idle gears 62 meshing with the left and right input gears 61 reverse. Rotate clockwise (arrow R4). When the left and right idle gears 62 rotate counterclockwise, the left and right sprocket gears 63 meshing with the left and right idle gears 62 rotate clockwise (arrow R5). sprocket 51 synchronously rotates clockwise (arrow R6, see also FIG. 3). As a result, the carrier tape 23 is transported forward (to the right) of the tape feeder 13 (arrow F; see also FIGS. 2 and 3).

As described above, the tape feeder 13 in Embodiment 1 includes the motor 53, the shaft member 52 provided extending in the horizontal direction below the left and right sprockets 51, and the left and right transmission gears provided on the left and right side frames 41. and a mechanism 54 . The shaft member 52 is driven by a motor 53, and the left and right transmission gear mechanisms 54 transmit the rotational force of the motor 53 transmitted to the shaft member 52 to the left and right sprockets 51 to rotate the left and right sprockets 51 synchronously. It's like Here, of the left and right transmission gear mechanisms 54, the right transmission gear mechanism 54 is a first transmission gear mechanism that transmits the power of the motor 53 to the right sprocket 51 (one of the left and right sprockets 51). The left transmission gear mechanism 54 transmits the power of the motor 53 to the left sprocket 51 (the other of the left and right sprockets 51) via the shaft member 52 provided in the right transmission gear mechanism 54 (first transmission gear mechanism). It is a second transmission gear mechanism for transmission.

2, 4 and 5, the tape introduction guide 46 is attached to the rear end portion of the spacer 42S and positioned at the rear portion of the left and right side frames 41. As shown in FIG. The tape introduction guide 46 has a function of guiding the carrier tape 23 to the tape insertion port 13G, and the carrier tape 23 is guided by the tape introduction guide 46 to be smoothly drawn from the reel 24 into the tape transport path 13L.

In FIGS. 2, 4 and 5, the top tape peeling unit 47 is provided extending in the left-right direction at a position straddling the left and right side frames 41 above the middle portion of the left and right side frames 41 . The top tape peeling unit 47 peels off the top tape 32 from the carrier tape 23 traveling forward on the tape conveying path 13L, pulls it backward, and collects it. Therefore, each protrusion 23P of the carrier tape 23 is in a state where the top tape 32 is removed before reaching the component supply position 13a, and is opened upward at the component supply position 13a. As a result, the mounting head 15 can pick up the component BH at the component supply position 13a (FIG. 3). The carrier tape 23 (base tape 31) from which the component BH has been picked up by the mounting head 15 at the component supply position 13a passes below the tape pressing member 45, and then feeds the tape feeder 13 from between the front ends of the left and right side frames 41. (Fig. 2).

The top tape peeling unit 47 is detachable from the left and right side frames 41 . Therefore, when the interval between the left and right side frames is changed in response to the size change (change in width dimension) of the carrier tape 23 to be conveyed, the changed interval between the left and right side frames 41 can be changed. The size of the carrier tape 23 can be changed by attaching the top tape peeling unit 47 of the corresponding size.

As described above, the tape feeder 13 according to Embodiment 1 is configured such that the shaft member 52 is rotated by the motor 53, and the rotational force of the shaft member 52 rotates the left and right sprockets 51 synchronously in the same direction via the left and right transmission gear mechanisms 54. The shaft member 52 is arranged below the left and right sprockets 51 (below the rotation axis 51J). That is, the shaft member 52 is provided at a position off the center of the first sprocket (right sprocket 51) and the second sprocket (left sprocket 51). Therefore, even if the height dimension of the projection 23P is larger than the radius of the sprocket 51, the projection 23P does not interfere with the shaft member 52. Therefore, according to the tape feeder 13 of the present embodiment, it is possible to feed the carrier tape 23 having the protrusions 23P with a large height dimension, while having a compact configuration.

Here, as described above, the shaft member 52 is attached by fitting both ends thereof into the concave portions 61H of the input gears 61 constituting the left and right transmission gear mechanisms 54. It is removable. Therefore, when the interval between the left and right side frames 41 is changed in accordance with the size change (width dimension) of the carrier tape 23 to be conveyed (FIG. 9), the length of the shaft member 52 is also changed accordingly. (length corresponding to the interval between the left and right side frames 41), and even when the interval between the left and right side frames 41 is changed, the interval between the left and right side frames 41 can be changed only by replacing the shaft member 52. After that, the left and right sprockets 51 can be synchronously rotated in the same direction. Therefore, according to the tape feeder 13 of this embodiment, most of the constituent elements except for the connecting member 42, the shaft member 52 and the top tape peeling unit 47 can be used as common parts, and carrier tapes 23 of different widths can be used. It is possible to manufacture a plurality of types of corresponding tape feeders 13 at low cost.

(Embodiment 2)
FIG. 10 is a side view of tape feeder 113 according to the second embodiment. The difference from the tape feeder 13 in Embodiment 1 is the layout of the motor 153, the drive gear 153G, the shaft member 152, the shaft drive gear 152C, the input gear 161, the idle gear 162, the sprocket 51 and the sprocket gear 163. Other configurations such as a pressing member are the same as those of the tape feeder 13 in the first embodiment.

The motor 153 is built in one side frame 41 (here, the right side frame 41R). A drive gear 153G is attached to the tip of the output shaft 153J of the motor 153. As shown in FIG. The drive gear 153G is meshed with the shaft drive gear 152C, and the motor 153 can apply rotational force to the shaft member 152 via the drive gear 153G and the shaft drive gear 152C.

The left and right transmission gear mechanisms 154 are built in the left and right side frames 41 respectively. The left and right transmission gear mechanisms 154 each include an input gear 161 , an idle gear 162 and a sprocket gear 163 .

The left and right input gears 161 are arranged so as to face each other in the left-right direction with their rotation axes directed to the left and right. The shaft member 152 is attached by fitting both ends thereof into the left and right input gears 161 .

As in the case of the first embodiment, the left and right idle gears 162 are arranged to face each other in the left-right direction with their rotational axes oriented in the left-right direction. The left idle gear 162 meshes with the left input gear 161 , and the right idle gear 162 meshes with the right input gear 161 .

The left sprocket gear 163 is provided coaxially and integrally with the left sprocket 51L, and the right sprocket gear 163 is provided coaxially and integrally with the right sprocket 51R. The left sprocket gear 163 meshes with the left idle gear 162 , and the right sprocket gear 163 meshes with the right idle gear 162 .

In the tape feeder 113, the center of the shaft member 152 and the center of the sprocket 51 are at the same height. As described above, the shaft member 152 may be arranged other than below the left and right sprockets 51 as long as it does not interfere with the tape transport path 13L of the carrier tape 23 . In particular, depending on the layout of the left and right transmission gear mechanisms 154, it is possible to dispose the shaft member 152 above the tape transport path 13L of the carrier tape 23. FIG. In this case, the tape feeder 113 can also feed the carrier tape 23 with the projections 23P having a greater height.

Although the embodiments of the present invention have been described so far, the present invention is not limited to those described above, and various modifications and the like are possible. For example, the configuration of the left and right transmission gear mechanisms 54 in the above embodiment is an example, and the rotational force of the shaft member 52 can be transmitted to the left and right sprockets 51 to synchronously rotate the left and right sprockets 51 in the same direction. , the configuration is arbitrary. For example, in Embodiment 1, the shaft drive gear 52C, the motor 53, the output shaft 53J and the drive gear 53G can be provided on the left side frame 41L. Similarly, in the second embodiment, shaft drive gear 152C, motor 153, output shaft 153J and drive gear 153G can be provided on left side frame 41L. Further, the shape of the left and right side frames 41, the configuration of the connecting member 42, and the like shown in the above-described embodiment are merely examples, and are not limited to those described above.

To provide a tape feeder capable of conveying a carrier tape having projections with a large height dimension while having a compact structure.

1 component mounting device 13, 113 tape feeder 23 carrier tape 23P projection 23H feed hole 41 side frame 41M tape support surface 42 connecting member 51 sprocket 51P feed pin 52, 152 shaft member 53, 153 motor 54, 154 transmission gear mechanism BH component

Claims (3)

A tape feeder for conveying a carrier tape having a plurality of protrusions having spaces for accommodating components arranged in the longitudinal direction and having a plurality of feed holes arranged in the longitudinal direction at both ends in the width direction,
Left and right tape support surfaces that support the both ends of the carrier tape from below;
Left and right sprockets that are arranged to face each other in the left and right direction and engage feed pins on the outer periphery with the feed holes at the both ends of the carrier tape, the both ends of which are supported by the left and right tape support surfaces;
a shaft member provided below the left and right sprockets;
a motor that generates power to rotate the left and right sprockets;
a first transmission gear mechanism that transmits the power to one of the left and right sprockets;
and a second transmission gear mechanism for transmitting the power to the other of the left and right sprockets via the shaft member provided in the first transmission gear mechanism. left and right side frames arranged to face each other in the left and right direction; and a connecting member for connecting the left and right side frames. 2. The tape feeder according to claim 1, wherein said sprockets and said first and second gear mechanisms are provided on said left and right side frames, respectively. The connecting member is detachable from the left and right side frames, and when changing the spacing between the left and right side frames by replacing the connecting member with one having different dimensions in the left and right direction, the shaft member can be replaced with the 3. The sprocket according to claim 2, wherein the left and right sprockets can be synchronously rotated in the same direction after changing the spacing between the left and right side frames by replacing the sprockets with sprockets having lengths corresponding to the spacing between the left and right side frames. tape feeder.

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