CN112106459B - Component supply device - Google Patents

Abstract

The component supplying device includes a conveying section, a cover, and a pair of rollers. The transport unit transports the carrier tape. The cover member covers an upper portion of the carrier tape conveyed by the conveying section and is openable and closable. A pair of rollers retrieves the cover tape peeled off from the carrier tape. The distance between the pair of rollers is changed in conjunction with the opening and closing of the cover.

Description

Component supply device

Technical Field

The present invention relates to a component supply device that supplies components to a component mounting device.

Background

As a component supply device that supplies components to a component mounting device, a tape feeder that performs pitch feeding of a carrier tape in which components are accommodated so that the components are positioned at component pickup positions determined by a component mounting mechanism is often used. A cover tape is attached to the upper surface of the carrier tape to seal the recess in which the component is housed. In the tape feeder, the cover tape is peeled off from the upper surface of the carrier tape at the upstream side of the component pickup position to expose the components (for example, see patent document 1).

In the conventional technique shown in this patent document example, when a new carrier tape is set in the tape feeder, first, a carrier tape main body that houses a plurality of components is set in a tape holder having a tape pressing function. Then, the end of the cover tape peeled off from the upper surface of the carrier tape is sandwiched by a pair of rollers provided in a retrieving mechanism for peeling the cover tape, and the peeled cover tape is retrieved.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2013-206963

Disclosure of Invention

The component supply device supplies a component to the component mounting device by conveying a carrier tape having a plurality of grooves in which the component is accommodated and to which a cover tape sealing the plurality of grooves is attached.

The component supplying device includes a conveying section, a cover, and a pair of rollers.

The transport unit transports the carrier tape.

The cover member covers an upper portion of the carrier tape conveyed by the conveying section and is openable and closable.

A pair of rollers retrieves the cover tape peeled off from the carrier tape.

The distance between the pair of rollers is changed in conjunction with the opening and closing of the cover.

Drawings

Fig. 1 is an explanatory diagram of the overall configuration of a component supply device according to an embodiment of the present invention.

Fig. 2 is an explanatory view of a belt conveying section of the component supply device according to the embodiment of the present invention.

Fig. 3 is a main part sectional view of the component supply apparatus of the embodiment of the present invention.

Fig. 4A is a diagram illustrating the structure of the opening/closing cover and the opening/closing cover holding portion of the component supply device according to the embodiment of the present invention.

Fig. 4B is a diagram illustrating the structure of the opening/closing cover of the component supply device according to the embodiment of the present invention.

Fig. 5 is an explanatory diagram of a closed state of the opening/closing cover in the component supply device according to the embodiment of the present invention.

Fig. 6A is a cross-sectional view of the peeling roller and the tape pressing member in the component supplying apparatus according to the embodiment of the present invention.

Fig. 6B is an explanatory view of the structure of the tape pressing member in the component supplying apparatus according to the embodiment of the present invention.

Fig. 7 is a functional explanatory view of the peeling roller and the tape pressing member in the component supplying apparatus according to the embodiment of the present invention.

Fig. 8A is an explanatory view of automatic peeling of the cover tape by the peeling roller in the component feeding device according to the embodiment of the present invention.

Fig. 8B is an explanatory diagram of automatic peeling of the cover tape by the peeling roller in the component feeding device according to the embodiment of the present invention.

Fig. 8C is an explanatory diagram of automatic peeling of the cover tape by the peeling roller in the component feeding device according to the embodiment of the present invention.

Fig. 9 is an explanatory view of peeling of the cover tape based on the first peeling position in the component supplying apparatus according to the embodiment of the present invention.

Fig. 10 is an explanatory view of peeling of the cover tape based on the second peeling position in the component supplying apparatus according to the embodiment of the present invention.

Fig. 11 is an explanatory view of peeling of the cover tape based on the second peeling position in the component supplying apparatus according to the embodiment of the present invention.

Fig. 12 is a structural explanatory view of a positioning portion of an opening/closing cover holding portion of the component supply device according to the embodiment of the present invention.

Fig. 13 is an explanatory view of an open state of the opening/closing cover of the component supply device according to the embodiment of the present invention.

Fig. 14 is an explanatory diagram of backlash adjustment of the gear in the component feeding device according to the embodiment of the present invention.

Fig. 15A is a diagram illustrating the structure and function of a position adjustment tool for adjusting the backlash of the gear in the component feeding device according to the embodiment of the present invention.

Fig. 15B is a diagram illustrating the structure and function of a position adjustment tool for adjusting the backlash of the gear in the component feeding device according to the embodiment of the present invention.

Fig. 15C is a diagram illustrating the structure and function of a position adjustment tool for adjusting the backlash of the gear in the component feeding device according to the embodiment of the present invention.

Fig. 16 is an explanatory diagram of backlash adjustment of the gear by the position adjustment tool in the component feeding device according to the embodiment of the present invention.

Fig. 17A is an explanatory diagram of the structure and function of the opening/closing cover in a modified example of the component supply device according to the embodiment of the present invention.

Fig. 17B is an explanatory diagram of the structure and function of the opening/closing cover in a modified example in the component supplying apparatus according to the embodiment of the present invention.

Detailed Description

In the prior art, it is difficult to make the preparation work for setting a new carrier tape on a tape feeder efficient for the component supply work. That is, in the conventional technique, when a carrier tape is set, a tape holder is first opened in the tape feeder, and the carrier tape from which a cover tape having a predetermined length has been previously peeled off is set in the tape holder and engaged with a sprocket. After that, the peeled cover tape is folded back rearward and sandwiched between a pair of rollers provided in the retrieving mechanism, whereby the component can be supplied by the carrier tape. Thus, the installation of the carrier tape in the conventional technique requires troublesome operations associated with the opening and closing of the tape holder and the opening and closing of the roller in the retrieval mechanism. Therefore, in order to improve the work efficiency, simplification of a preparation work for setting a new carrier tape is required.

Next, an embodiment of the present invention will be described with reference to the drawings. First, the overall structure of the tape feeder 1 as the component supply device in the present embodiment will be described with reference to fig. 1. In fig. 1, the tape feeder 1 has a function of supplying components to the component mounting apparatus shown in the figure.

The supply of components based on the tape feeder 1 is performed by conveying a carrier tape 20 having a plurality of grooves 20B (see fig. 6A, 6B) in which components P (see fig. 3) are housed and a cover tape 20a sealing the grooves 20B is attached. The carrier tape 20 is conveyed by rotating a sprocket provided with engaging pins (see engaging pins 7a shown in fig. 3) that engage with feed holes 20c (see fig. 6A and 6B) formed in the carrier tape 20 (see fig. 6A and 6B).

The tape feeder 1 is configured by arranging elements described below on a main body 2 configured by a plate-shaped frame. These elements are covered by side covers 2f (see fig. 3) provided on both sides. As shown in fig. 1, the main body 2 is provided with a belt conveying path 4 (conveying path) that communicates from a belt insertion opening 4a that opens at the lower portion on the upstream side to a supply position 4b set near the end of the upper surface on the downstream side. The carrier tape 20 containing the components is introduced into the tape transport path 4 from the tape insertion port 4a, is transported to the upper surface of the main body 2 through a diagonal portion provided in the middle, and reaches the supply position 4b.

Then, at the supply position 4b, the suction nozzle of the component mounting device M is moved up and down (arrow b) to perform the component pickup operation, thereby picking up the component P from the main body 2. The component P taken out is transferred from the mounting head to the component mounting device (arrow c), and mounted on the substrate as the work target. The carrier tape 20 is conveyed by the tape conveying unit 3 (conveying unit) in the component supply described above.

The belt conveying unit 3 includes a motor 5, a conveying sprocket 6, a positioning sprocket 7, and a discharge sprocket 8. The carrier tape 20 inserted from the tape insertion port 4a is conveyed and positioned at the supply position 4b in the tape feeder 1 by driving the conveying sprocket 6, the positioning sprocket 7, and the discharge sprocket 8 by the motor 5 as a driving source. Then, the carrier tape 20 from which the component P has been taken out at the supply position 4b is discharged to the downstream side of the tape feeder 1 by the discharge sprocket 8 via the front cover 9 arranged on the end face of the main body portion 2.

That is, the belt conveying section 3 has the following functions: the sprockets engage with the carrier tape 20, respectively, and transport the carrier tape 20 along the tape transport path 4. The cover tape 20a peeled off from the carrier tape 20 during the tape conveyance is folded back to the upstream side and collected in the cover tape storage section 2b provided in the main body 2. The engagement of the carrier tape 20 with the positioning sprocket 7 and the discharge sprocket 8 is performed by pressing the carrier tape 20 against the positioning sprocket 7 and the discharge sprocket 8 by the opening/closing cover 18 (cover) (see fig. 2 and 3).

A convex portion 2a for connection to a component mounting device is provided on the lower surface of the body 2 on the upstream side. The convex portion 2a is provided with a connector 2c, an air fitting 2d, and a hook 2e. In a state where the tape feeder 1 is installed on a feeder base provided in a component supply part of the component mounting device, the connector 2c and the air joint 2d are fitted to the counterpart side (component mounting device side) to be in a connected state. At this time, the tape feeder 1 is positioned to the feeder base by the hook 2e. In this connected state, power supply from the component mounting device to the tape feeder 1, air supply, and signal transmission and reception between the component mounting device and the tape feeder 1 can be performed.

The convex portion 2a incorporates a feeder control portion 10 that controls the operation of the tape feeder 1. In a state where the tape feeder 1 is connected to the component mounting device, the feeder control part 10 is electrically connected to the device control part of the component mounting device via the connector 2 c. Thereby, the operation command from the device control part of the component mounting device is transmitted to the tape feeder 1, and the operation feedback signal of the component supplying operation by the tape feeder 1 is transmitted to the component mounting device.

Next, the detailed structure of the belt conveying unit 3 will be described with reference to fig. 2 and 3. It should be noted that fig. 3 shows thebase:Sub>A-base:Sub>A step cross section in fig. 2. In fig. 2, a motor 5 held by a motor mounting member 5a serving as a support member is arranged at a lower end portion on the downstream side of the main body portion 2. As shown in fig. 3, the motor mounting member 5a is fixed to one side surface of the main body 2. The first transmission gear 51 is engaged with a drive gear 50 coupled to a rotation shaft of the motor 5, and the third transmission gear 15 (fifth gear) is engaged with a second transmission gear 52 provided coaxially with the first transmission gear 51. As shown in fig. 3, a shaft 52a that pivotally supports the first transmission gear 51 and the second transmission gear 52 is rotatably fitted in a bearing 52b fixed to the main body 2.

In fig. 3, a shaft 15b that axially supports the third transmission gear 15 is rotatably fitted in a bearing 15c fixed to a sliding member 15a serving as a support member. The slide member 15a is fitted into a guide groove 43 (fig. 14) formed in the main body 2 and is held so as to be adjustable in position in one direction. A positioning sprocket gear 11 (first gear) and a conveying sprocket gear 14 (fourth gear) are engaged with the third transmission gear 15, the positioning sprocket gear 11 is coaxial with the positioning sprocket 7 that positions the carrier tape 20, and the conveying sprocket gear 14 is coaxial with the conveying sprocket 6 that conveys the carrier tape 20 to the positioning sprocket 7.

As shown in fig. 3, the positioning sprocket gear 11 and the positioning sprocket 7 are supported by a shaft 11a, and the shaft 11a is rotatably fitted in a bearing 11b fixed to the main body 2. A fourth transmission gear 13 (third gear) for transmitting torque to an ejection sprocket gear 12 (second gear) is meshed with the positioning sprocket gear 11, the ejection sprocket gear 12 being coaxial with the ejection sprocket 8 from which the carrier tape 20 is ejected. Further, a fifth transmission gear 17 (seventh gear) that transmits torque to a peeling roller gear 16 (sixth gear) for driving a tape peeling mechanism 21 (see fig. 5) for tape feeding of the cover tape 20a peeled off from the carrier tape 20 is engaged with the conveyance sprocket gear 14.

In the above configuration, the motor 5 is driven to generate torque, and the torque is transmitted to the positioning sprocket gear 11, the discharge sprocket gear 12, and the feed sprocket gear 14 via the plurality of gears. Thereby, torque is transmitted to the positioning sprocket 7, the discharge sprocket 8, and the conveying sprocket 6, which are provided coaxially with the positioning sprocket gear 11, the discharge sprocket gear 12, and the conveying sprocket gear 14, respectively.

The positioning sprocket 7 is a first sprocket that rotates while engaging with a feed hole provided in the carrier tape 20, and conveys the component P to the supply position 4b for supplying the component mounting apparatus. The discharge sprocket 8 is a second sprocket that engages with the feed holes 20c of the carrier tape 20 supplied with the parts P and rotates, thereby discharging the carrier tape 20 from the tape feeder 1. The feed sprocket 6 is a third sprocket that engages with the feed hole 20c of the carrier tape 20 and rotates to feed the carrier tape 20 to the first sprocket.

Of these three sprockets, an opening/closing cover 18 (cover) is provided on the upper surface sides of the positioning sprocket 7 and the discharge sprocket 8 so as to be openable and closable with respect to the main body 2. The opening/closing cover 18 has a function of pressing the carrier tape 20 conveyed by the conveying sprocket gear 14 in a closed state. By this pressing, the engagement pins of the positioning sprocket 7 and the discharge sprocket 8 are engaged with the feed holes 20c of the carrier tape 20 (see fig. 2 to 4A). That is, the tape conveying unit 3 is configured to have the opening/closing cover 18 that presses the carrier tape 20 against the positioning sprocket 7 as a first sprocket and the discharge sprocket 8 as a second sprocket. The open/close cover 18 covers the carrier tape 20 conveyed by the tape conveying unit 3 in the closed state.

The motor 5 generates torque for driving the positioning sprocket 7 as a first sprocket, the discharge sprocket 8 as a second sprocket, and the conveying sprocket 6 as a third sprocket. The belt conveying unit 3 having the above-described structure is configured to include a plurality of gears for transmitting the torque generated by the motor 5 to the positioning sprocket 7, the discharge sprocket 8, and the conveying sprocket 6. The plurality of gears are configured to include a positioning sprocket gear 11 (first gear) coaxial with the positioning sprocket 7 as a first sprocket, a discharge sprocket gear 12 (second gear) coaxial with the discharge sprocket 8 as a second sprocket, and a fourth transmission gear 13 (third gear) meshing with the positioning sprocket gear 11 and the discharge sprocket gear 12.

As shown in fig. 3, an engagement pin 7a is provided on the outer periphery of the positioning sprocket 7. The carrier tape 20 has feed holes 20c formed therein at a pitch corresponding to the pitch of the engagement pins 7a (see fig. 6A and 6B). The carrier tape 20 is fed along the tape transport path 4 at a predetermined feed pitch by intermittently rotating the positioning sprocket 7 with the engagement pin 7a engaged with the feed hole. Similarly, the discharge sprocket 8 and the transport sprocket 6 are intermittently rotated, so that the carrier tape 20 is fed at a predetermined feed pitch.

The plurality of gears of the belt conveying unit 3 include a conveying sprocket gear 14 (fourth gear), a positioning sprocket gear 11 (first gear), and a third transmission gear 15 (fifth gear). Here, the conveying sprocket gear 14 (fourth gear) is coaxial with the conveying sprocket 6 as the third sprocket. The third transmission gear 15 (fifth gear) is meshed with the conveyance sprocket gear 14 (fourth gear).

Further, the above-described plurality of gears further includes a peeling roller gear 16 (sixth gear) and a fifth transmission gear 17 (seventh gear). Here, the peeling roller gear 16 (sixth gear) is coaxial with a driving peeling roller 22 (see fig. 4A) of a tape peeling mechanism 21, and the tape peeling mechanism 21 takes back the cover tape 20a peeled off from the carrier tape 20 by tape feeding. The fifth transmission gear 17 (seventh gear) is meshed with the peeling roller gear 16 and the conveying sprocket gear 14. In the present embodiment, the belt conveying unit 3 in which the above-described plurality of gears are arranged is used to rotationally drive the conveying sprocket 6, the positioning sprocket 7, and the discharge sprocket 8 by using the single motor 5 as a driving source.

Thereby, the carrier tape 20 introduced from the tape insertion port 4a is conveyed to the positioning sprocket 7 by the conveying sprocket 6. Next, the carrier tape 20 is positioned at the supply position 4b by the positioning sprocket 7. Further, the carrier tape 20 after the removal of the component P at the supply position 4b is discharged to the downstream side of the tape feeder 1 by the discharge sprocket 8. With such a structure, the carrier tape 20 can be stably and reliably conveyed in the tape feeder 1.

In the present embodiment, the diameter of the discharge sprocket 8 as the second sprocket is smaller than the diameter of the positioning sprocket 7 as the first sprocket. Thereby, in the tape feeder 1, the side close to the component mounting device can be made compact, and the component supply portion in which the plurality of tape feeders 1 are mounted can be downsized in the component mounting device.

Next, the structure and function of the opening/closing cover 18 that covers the upper surfaces of the positioning sprocket 7 and the discharge sprocket 8 and presses and engages the carrier tape 20 with the positioning sprocket 7 and the discharge sprocket 8 will be described with reference to fig. 4A, 4B, and 5. Fig. 4A is a plan view of the open/close cover holding portion 19 (cover holding portion) that holds the open/close cover 18, which is pivotally supported by the support shaft 32, in a state of being fixed to the block 31 of the main body portion 2. Fig. 4B is a plan view showing the opening/closing cover 18 shown in fig. 4A as a single body.

The opening/closing cover 18 is a member having a substantially U-shaped cross section with its lower surface opened. The upper surface portion of the opening/closing cover 18 is brought into contact with and pressed against the covering portion 18a of the carrier tape 20 (see fig. 3). In the covering portion 18a, a component take-out opening portion 18b for taking out the component P is provided at the supply position 4b. The component take-out opening 18b functions as a supply section for supplying the component P to the component mounting apparatus.

The covering portion 18a is provided with a first escape portion 18d and a second escape portion 18e for escaping the engagement pin 7a of the positioning sprocket 7 and the engagement pin 8a of the discharge sprocket 8, respectively, in a state where the opening/closing cover 18 is lowered and closed with respect to the main body portion 2 as shown in fig. 4A and 4B. The covering portion 18a is provided with a notch 18c formed by cutting the first escape portion 18d to one side surface. As shown in fig. 4B, the opening/closing cover 18 is provided with a base portion 18f extending upstream from the side surface on both sides. The opening/closing cover 18 is provided with a locking portion 18g (see fig. 5) extending from the covering portion 18a toward the downstream side.

In fig. 5, the block 31 is a rectangular block-shaped member and is fixed to the main body 2. On the lower surface side of the block 31, between the block and the upper surface of the belt conveying path 4, a substantially plate-shaped belt pressing member 30 is disposed along the belt conveying path 4. The tape pressing member 30 has a function of abutting against the upper surface of the carrier tape 20 conveyed along the tape conveying path 4 and pressing it from above (see fig. 6A and 6B).

The tape pressing member 30 is biased downward by a spring member 33 disposed between the block 31 and the tape pressing member, and is displaceable in the thickness direction of the carrier tape 20. This allows a plurality of types of carrier tapes 20 having different thickness dimensions to be conveyed without generating a gap in the pressing surface, thereby enabling stable conveyance.

The opening/closing cover holding portion 19 is pivotally supported by the block 31 via a support shaft 32 so as to be rotatable about the support shaft 32. The opening/closing cover holding portion 19 is a substantially disk-shaped member having an extended portion 19c partially extending in the tangential direction. A base portion 18f of the opening/closing cover 18 shown in fig. 4B is fixed to the extending portion 19c by screw fastening. With such a configuration, the opening/closing cover 18 is held by the opening/closing cover holding part 19 so as to be openable/closable with respect to the main body part 2 of the tape feeder 1. That is, the opening/closing cover holding portion 19 has a function of holding the opening/closing cover 18 and opening/closing the opening/closing cover 18 with respect to the main body portion 2 of the tape feeder 1.

Fig. 5 shows a state where the open-close cover 18 held by the open-close cover holding part 19 is closed. In this state, the opening/closing cover 18 is maintained in a closed state by a lock mechanism provided in the front cover 9. That is, the front cover 9 includes a lifting portion 9a that is slidable in the vertical direction (arrow d) with respect to the base portion 9b and is biased downward by a biasing spring member 9 c. The sliding operation of the lifting unit 9a is guided by a guide mechanism in which a long hole 9e provided in the lifting unit 9a and a pin 9d provided in the base 9b are combined.

A locking pin 9f (see fig. 4A) is provided on the upper portion of the lifting portion 9a, and the locking pin 9f is formed in a shape capable of locking a locking portion 18g extending from the end on the downstream side of the opening/closing cover 18. To close the opening/closing cover 18, first, the raising/lowering portion 9a is raised to raise the locking pin 9f, and in this state, the opening/closing cover 18 is closed and the locking portion 18g is positioned below the locking pin 9 f. Next, in this state, the lifting unit 9a is lowered, and the locking pin 9f is brought into contact with the locking unit 18 g. Thereby, the locking portion 18g is pressed downward by the biasing force of the biasing spring member 9c and locked, and the closed state of the opening/closing cover 18 is maintained.

The opening operation shown in fig. 9 is performed to change the opening/closing cover 18 from the closed state to the open state. That is, first, the lifting part 9a is lifted against the urging force of the urging spring member 9c, and the locked state in which the locking part 18g is pressed by the locking pin 9f is released. Then, the process is carried out. The opening/closing cover 18 is lifted up to be in the open state (arrow m) shown in fig. 9.

The shutter holding portion 19 of the present embodiment is provided with a positioning member 40 having a structure described below, and the positioning member 40 performs positioning of the shutter holding portion 19 in the open state and the closed state in the above opening and closing operation (see fig. 12). As shown in fig. 12, two recesses, i.e., a first engaging portion 19a and a second engaging portion 19b, are formed on the outer periphery of the open/close cover holder 19 in accordance with the open/close state of the open/close cover 18.

A positioning member 40 is disposed on the outer periphery of the open/close cover holding portion 19, and the positioning member 40 is provided with a positioning convex portion 40a engageable with the first engaging portion 19a and the second engaging portion 19 b. The positioning member 40 is rotatable about a fulcrum 40b, and is biased in the direction of arrow q, that is, in the direction in which the positioning convex portion 40a engages with the first engaging portion 19a and the second engaging portion 19b, by a biasing spring member 41 coupled to one end opposite to the positioning convex portion 40a. This makes positioning at the time of opening and closing the opening/closing cover 18 as described below.

First, when the opening/closing cover 18 is opened, as shown in fig. 13, the opening/closing cover 18 is lifted (arrow r), so that the opening/closing cover holding portion 19 is rotated and the positioning convex portion 40a is engaged with the first engaging portion 19 a. When the opening/closing cover 18 is closed, the positioning protrusion 40a is engaged with the second engaging portion 19b as shown in fig. 12.

This enables positioning of the opening/closing cover holding portion 19 according to the open/close state of the opening/closing cover 18. That is, in the present embodiment, the opening/closing cover holding portion 19 is configured to have the first engaging portion 19a that engages with the positioning convex portion 40a at the position where the opening/closing cover 18 is opened, and the second engaging portion 19b that engages with the positioning convex portion 40a at the position where the opening/closing cover 18 is closed.

In the closed state of the opening/closing cover 18 shown in fig. 12, it is preferable that a biasing force F for pressing the tape feeding unit 3 is applied to the opening/closing cover 18 in order to stabilize the engagement state of the carrier tape 20 with the positioning sprocket 7 and the discharge sprocket 8 constituting the tape feeding unit 3. In order to realize the urging force F with a simple configuration, it is preferable to provide an urging mechanism 19d having a function of applying the urging force F described above in the extension portion 19c that couples the opening/closing cover 18 to the opening/closing cover holding portion 19. As the urging mechanism 19d, for example, an elastic member that generates an elastic force in the rotational direction, such as a coil spring, can be used.

Next, the structure and function of the tape peeling mechanism 21 for retrieving the cover tape 20a peeled off from the carrier tape 20 will be described with reference to fig. 4A, 4B, and 5. As shown in fig. 5, in the belt conveying path 4, a belt peeling mechanism 21 is disposed at an upstream side diagonal portion of the positioning sprocket 7. The tape peeling mechanism 21 includes a pair of driving peeling rollers 22 and driven peeling rollers 23 for taking back the cover tape 20a peeled off from the carrier tape 20.

The driving peeling roller 22 and the driven peeling roller 23 are toothed rollers provided with teeth meshing with each other on the outer periphery, and have a function of taking back the cover tape 20a from the carrier tape 20 by sandwiching the cover tape 20a between the meshed teeth. As shown in fig. 5, one of the pair of rollers, the drive peeling roller 22, is attached to the opening/closing cover holding portion 19. The driven peeling roller 23, which is one of a pair of rollers, is rotatably provided at the downstream end of the belt pressing member 30 disposed along the belt conveying path 4 on the lower surface side of the block 31. With this configuration, the distance between the pair of driving peeling roller 22 and driven peeling roller 23 changes in conjunction with the opening and closing of the opening/closing cover 18 by rotating the opening/closing cover holding portion 19.

In the tape conveying path 4, a tape covering member 24 is provided along the upper surface of the tape conveying path 4 on the downstream side of the tape pressing member 30 to a position immediately before the feeding position 4b. The tape cover 24 is fixed to the tape pressing member 30 so as to be displaceable in the thickness direction of the carrier tape 20 together with the tape pressing member 30. The tape cover 24 functions as a first cover member for covering the upper surface of the carrier tape 20 from which the cover tape 20a is peeled by the tape peeling mechanism 21.

That is, in the carrier tape 20 in a state where the cover tape 20a is peeled off, the groove 20b is exposed, and the housed component P becomes unstable. By covering the upper surface of the carrier tape 20 with the tape covering material 24, the carrier tape 20 from which the covering tape 20a has been peeled off can be stably conveyed without causing troubles such as dropping of the component P.

The downstream-side tip end of the tape cover 24 can also function as a peeling portion 24a for peeling the cover tape 20a from the carrier tape 20 (see fig. 10 and 11). In this case, the tape cover 24 is formed as a first cover that presses the carrier tape 20 and is provided with a peeling part 24a that peels off the cover tape 20a.

In the tape feeder 1 shown in the present embodiment, a tape cover 24 as a first cover is provided fixed to a tape pressing member 30 that presses the carrier tape 20 upstream of the pair of driving peeling roller 22 and driven peeling roller 23. The opening/closing cover 18 as the second cover member is provided with a component take-out opening 18b as a supply portion for supplying the component P to the component mounting device, and is configured to be freely opened and closed with respect to the main body of the tape feeder 1.

Next, a driving mechanism of the tape peeling mechanism 21 will be explained. As shown in fig. 4A, the driving peeling roller 22 is disposed coaxially with the peeling roller gear 16. Further, a fifth transmission gear 17 meshing with the peeling roller gear 16 and the opening/closing cover holding portion 19 are provided coaxially. Further, in the opening/closing cover holding portion 19, the peeling roller gear 16 coaxial with the driving peeling roller 22 is disposed at a position meshing with the fifth transmission gear 17 (see also fig. 2).

Therefore, during the rotation of the open/close cover holding part 19 accompanying the opening/closing of the open/close cover 18, the peeling roller gear 16 is always in a state of meshing with the fifth transmission gear 17, and during the rotation of the open/close cover holding part 19, the peeling roller gear 16 rolls along the outer periphery of the fifth transmission gear 17. In this rolling, rotation is transmitted from the fifth transmission gear 17 to the peeling roller gear 16 regardless of the position of the peeling roller gear 16, and the peeling roller 22 is driven to rotate.

That is, the above structure has the peeling roller gear 16 (roller gear) and the fifth transmission gear 17 (roller drive gear). Here, the peeling roller gear 16 (roller gear) is coaxial with the driving peeling roller 22. The fifth transmission gear 17 (roller drive gear) rotates the drive peeling roller 22 by driving the peeling roller gear 16. Then, by rotating the opening/closing cover holding portion 19 coaxially with the fifth transmission gear 17, the opening/closing cover 18 is opened and closed, and the peeling roller gear 16 rolls on the outer periphery of the fifth transmission gear 17.

Then, as shown in fig. 5, the driving peeling roller 22 driven to rotate is engaged with the driven peeling roller 23 only in a state where the opening/closing cover 18 is closed. The tape peeling mechanism 21 in the present embodiment is configured to perform a function of pinching and withdrawing the cover tape 20a between the driving peeling roller 22 and the driven peeling roller 23 only in a state where the opening/closing cover 18 is closed. That is, when the opening/closing cover 18 is closed and covers the upper side of the carrier tape 20, the pair of driving peeling rollers 22 and driven peeling rollers 23 nip and capture the cover tape 20a. When the opening/closing cover 18 is opened, the gap between the pair of driving peeling roller 22 and driven peeling roller 23 is widened to release the cover tape 20a.

Next, the following peeling roller 23 constituting the tape peeling mechanism 21 and the guide mechanism for guiding the carrier tape 20 conveyed to the tape peeling mechanism 21 will be described in detail with reference to fig. 6A, 6B, and 7. Fig. 6A shows a cross section in a direction orthogonal to the conveying direction of the carrier tape 20 at the downstream-side end of the tape pressing member 30. In fig. 6A, the upper surface of the main body 2 forms a tape conveyance surface 2i for conveying the carrier tape 20. The tape conveyance path 4 opens to the tape conveyance surface 2i, and the carrier tape 20 is set in a posture such that the notch 20b is positioned on the tape conveyance path 4 in the conveyance state. In this set state, the carrier tape 20 abuts against the tape conveying surface 2i, and the convex portion 30a provided to protrude from the lower surface of the tape pressing member 30 abuts against the upper surface of the cover tape 20a.

As shown in fig. 6B, a spring member 33 as an elastic body is fitted into a recess 30B formed on the upper surface of the tape pressing member 30 and a recess 31a formed on the lower surface of the block 31. The spring member 33 is a compression spring, and applies a biasing force in the pressing direction between the fixed block 31 and the belt pressing member 30 displaceable in the thickness direction. Thereby, the convex portion 30a formed on the lower surface of the tape pressing member 30 abuts on the cover tape 20a, and the carrier tape 20 is pressed against the tape transport surface 2i (arrow e).

In the above structure, the tape pressing member 30 is connected to the block 31 fixed to the main body portion 2 of the tape feeder 1 by the spring member 33 as an elastic body. This can absorb the difference in thickness of the carrier tape 20 to be conveyed. The tape pressing member 30 has a convex portion 30a capable of abutting on the cover tape 20a on the upper surface of the carrier tape 20. Thus, in the structure in which carrier tape 20 is pressed by tape pressing member 30, it is possible to prevent a problem that tape pressing member 30 and cover tape 20a come into close contact and hinder a smooth sliding operation.

In fig. 6A, a bearing 34 provided at one side end of the tape pressing member 30 is rotatably held by a peeling roller support shaft 36 via a bearing 35. A roller member 37 constituting the driven peeling roller 23 is coupled to the peeling roller support shaft 36. The roller member 37 is a toothed roller member having teeth portions on the outer periphery thereof, which are engaged with the drive peeling roller 22, and two circumferential groove portions 37a are formed on the outer periphery thereof.

A roll-in preventing member 38 shown in fig. 7 is engaged with the circumferential groove portion 37a so as to allow the roller member 37 to rotate around the peeling roller support shaft 36. The entanglement preventing member 38 is a plate member engaging with the inner periphery of the circumferential groove portion 37a in the form of an E-ring, and its upstream end portion is fixed to the block 31 (see fig. 7).

That is, the roller member 37 is axially supported around the peeling roller support shaft 36, and is held by the entanglement preventing member 38 in a state of being allowed to rotate. In fig. 4A, the entanglement preventing member 38 is not shown. In addition, a roll-in preventing member 38 having the same structure is also attached to the driving peeling roller 22. The following effects are obtained by the presence of the entanglement preventing member 38 in a form fitted into the circumferential groove portion 37a formed in the roller member 37.

In the tape separation in which the cover tape 20a is sandwiched and retrieved by the pair of driving and driven peeling rollers 22 and 23a, there is a possibility that the sandwiched cover tape 20a is wound around any one of the peeling rollers, and normal tape retrieval is hindered. By providing the rolling-in preventing member 38 as shown in the present embodiment, the cover tape 20a is prevented from rolling in the outer peripheries of the driving peeling roller 22 and the driven peeling roller 23.

That is, the entanglement preventing member 38 functions as an entanglement preventing portion that prevents the cover tape 20a retrieved by the pair of driving peeling roller 22 and driven peeling roller 23 from being entangled. The driven peeling roller 23, which is one of the pair of the driving peeling roller 22 and the driven peeling roller 23, is formed to be coupled to the block 31 fixed to the main body portion 2 of the tape feeder 1 via a rolling-in preventing member 38 as a rolling-in preventing portion.

In the above configuration, the driven peeling roller 23 of the tape peeling mechanism 21 is formed in a holding type which is attached to the tape pressing member 30 via the peeling roller support shaft 36. Thereby, even if the thickness of the target carrier tape 20 changes, the driven peeling roller 23 moves in the thickness direction of the carrier tape 20 together with the tape pressing member 30, and the distance of the driven peeling roller 23 from the cover tape 20a is maintained constant.

In fig. 6A, the air ejection holes 2h are opened at positions corresponding to the belt peeling mechanism 21 (see fig. 7) constituted by a pair of rollers on the bottom surface of the belt conveying path 4. The air ejection holes 2h eject air supplied through the air joint 2d (see fig. 1) and the air supply holes 2g toward between the driving peeling roller 22 and the driven peeling roller 23. Thereby, the leading end of the cover tape 20a peeled off from the carrier tape 20 is blown up and introduced between the driving peeling roller 22 and the driven peeling roller 23.

That is, the air joint 2d, the air supply hole 2g, and the air ejection hole 2h for supplying air are provided at positions corresponding to the pair of rollers, i.e., the driving peeling roller 22 and the driven peeling roller 23, in the transport path of the tape transport path 4 of the carrier tape 20. The air joint 2d, the air supply hole 2g, and the air ejection hole 2h constitute an introduction portion that introduces the cover tape 20a between the driving peeling roller 22 and the driven peeling roller 23 by the airflow ejected from the air ejection hole 2 h. At this time, since the distance from the driven peeling roller 23 to the cover tape 20a is maintained constant as described above, the tip end of the blown-up cover tape 20a can be reliably caught by the driving peeling roller 22 and the driven peeling roller 23.

In the example shown in the present embodiment, the air ejected from the air ejection holes 2h is used as the air flow. Instead of ejecting air, negative pressure may be applied between the driving peeling roller 22 and the driven peeling roller 23, and the cover tape 20a may be introduced between the driving peeling roller 22 and the driven peeling roller 23 by the negative pressure.

Fig. 8A to 8C show the retracting operation of the cover tape 20a by the above-described introduction part. This retrieving operation is automatic peeling performed in a state where the opening/closing cover 18 is closed. First, as shown in fig. 8A, carrier tape 20 from which cover tape 20a having a predetermined length at the tip end portion thereof is peeled off in advance is conveyed along tape conveying path 4 (arrow g). At this time, in the tape peeling mechanism 21, the driving peeling roller 22 is driven to rotate, and thereby the pair of driving peeling roller 22 and driven peeling roller 23 are both in a rotating state (arrows i, j). The air for introduction is ejected from the air ejection holes 2h provided in the belt conveyance path 4 (arrow h).

When the conveyance is continued in this state, as shown in fig. 8B, the peeled cover tape 20a at the leading end portion reaches the tape peeling mechanism 21. The cover tape 20a at the leading end portion is blown up by the air ejected from the air ejection holes 2h and introduced between the driving peeling roller 22 and the driven peeling roller 23. Then, the cover tape 20a is sandwiched by the driving peeling roller 22 and the driven peeling roller 23 which rotate, whereby the cover tape 20a is peeled and retrieved from the carrier tape 20 as shown in fig. 8C.

Fig. 9 shows a state where the opening/closing cover 18 is opened after the above-described automatic peeling. First, the lifting unit 9a of the front cover 9 is lifted (arrow k), and the locking of the locking portion 18g by the locking pin 9f is released. Next, the open/close cover 18 is lifted (arrow m), the open/close cover holding portion 19 is rotated about the support shaft 32, and the positioning convex portion 40a is engaged with the first engaging portion 19a as shown in fig. 13. Thereby, the opening/closing cover 18 is maintained in an open state with respect to the main body 2.

Next, a mode of peeling the cover tape 20a using the peeling section 24a of the tape covering member 24 without using the automatic peeling by the above-described tape peeling mechanism 21 will be described with reference to fig. 10 and 11. As in the present embodiment, when a plurality of types of carrier tapes 20 are targeted for work, the peel-off characteristics of the cover tape 20a differ depending on the targeted carrier tape 20. That is, there are not only types of tapes to which the automatic peeling shown in fig. 8A to 8C can be applied without problems, but also types of tapes in which automatic peeling is difficult to perform without operational errors.

Therefore, in the present embodiment, the cover tape 20a is peeled off using the peeling section 24a of the tape covering member 24 for a type to which a tape that is difficult to peel off automatically is applied, as will be described below. In this embodiment, as shown in fig. 10, the opening/closing cover 18 is first opened (arrow n). In this state, the carrier tape 20 is fed along the tape transport path 4, passes through the lower surface side of the tape cover 24, and reaches the front cover 9 with its front end portion passing over the positioning sprocket 7 and the discharge sprocket 8. Thereby, the cover tape 20a is exposed on the downstream side of the tape cover 24.

Next, the exposed cover tape 20a is peeled off from the carrier tape 20, and as shown in fig. 10, is folded back upstream by a peeling portion 24a at the downstream end of the tape cover 24 as the first cover, and peeled off. The peeled cover tape 20a is guided to the cover tape housing portion 2b on the upstream side (arrow o) through the space between the opening/closing cover 18 and the tape cover 24.

Next, as shown in fig. 11, the opening/closing cover 18 is closed and locked by the front cover 9. That is, a downward biasing force (arrow p) is applied to the lifting portion 9a of the front cover 9 by the biasing spring member 9c, and the locking portion 18g of the opening/closing cover 18 is pushed downward by the locking pin 9 f. In this state, the driving peeling roller 22 attached to the opening/closing cover holding portion 19 is positioned to mesh with the driven peeling roller 23. Thereby, the cover tape 20a is sandwiched between the pair of driving peeling roller 22 and driven peeling roller 23, and is withdrawn to the upstream side.

That is, in the peeling method using the peeling part 24a of the tape cover 24, the cover tape 20a is peeled by being folded back in the direction opposite to the conveying direction of the carrier tape 20 by the peeling part 24a of the tape cover 24 which is the first cover. Then, the cover tape 20a peeled off by the peeling section 24a passes through between the tape cover 24 as a first cover and the opening/closing cover 18 as a second cover to be retrieved by the pair of driving peeling roller 22 and driven peeling roller 23.

In other words, the tape feeder 1 shown in the present embodiment is formed in a structure provided with a first peeling route for performing the aforementioned automatic peeling and a second peeling route for peeling the cover tape 20a by the peeling section 24a of the tape cover 24.

That is, the first peeling path has a tape transport path 4 for transporting the carrier tape 20, and a pair of driving peeling roller 22 and driven peeling roller 23. Here, the pair of driving peeling roller 22 and driven peeling roller 23 sandwich the cover tape 20a located at the tip of the carrier tape 20, and peel the cover tape 20a from the carrier tape 20.

The second peeling path has a tape conveyance path 4 for conveying the carrier tape 20, a tape covering member 24 (covering member), and a path for guiding the covering tape 20a peeled off by the peeling section 24a to the pair of driving peeling rollers 22 and driven peeling rollers 23. Here, the tape cover 24 presses the carrier tape 20 and has a peeling portion 24a that peels the cover tape 20a from the carrier tape 20 at an end portion on the side of the carrier tape 20 in the conveying direction.

Next, the function of adjusting the backlash in the tape conveying section 3 of the tape feeder 1 shown in this embodiment will be described with reference to fig. 14, 15A to 15C, and 16. In order to ensure the stop position accuracy of the components at the supply position 4b with high accuracy in the tape feeder 1, it is desirable to transmit the torque generated by the motor 5 as the drive source to the positioning sprocket 7 with high accuracy. Therefore, the belt conveying unit 3 according to the present embodiment employs the following configuration so that backlash at an important part of torque transmission can be adjusted with high accuracy and good workability.

Fig. 14 shows a transmission path for transmitting the torque generated by the motor 5 to the positioning sprocket 7 in the belt conveying section 3. In this transmission path, the motor 5 is coaxial with the drive gear 50, the first transmission gear 51 and the second transmission gear 52, and the positioning sprocket 7 and the positioning sprocket gear 11, respectively, and therefore, there is a possibility that a rotation transmission error may occur in a portion that is limited to a transmission portion from the drive gear 50 to the first transmission gear 51 and a transmission portion from the second transmission gear 52 to the positioning sprocket gear 11 via the third transmission gear 15.

Therefore, in the present embodiment, a support member is provided which supports at least one gear as an adjustment target rotatably and is displaceable with respect to the main body portion 2 of the tape feeder 1, so that the backlash adjustment at the two transfer portions described above can be performed with high accuracy and good workability.

First, the drive gear 50 provided coaxially with the motor 5 is included in at least one gear. Therefore, the motor mounting member 5a supports the motor 5 and the drive gear 50, and the relative position between the drive gear 50 and the first transmission gear 51 is finely adjusted (arrow s) by finely adjusting the position of the motor mounting member 5a, thereby adjusting the backlash. Here, the motor mounting member 5a is connected to the main body portion 2 of the tape feeder 1 via a support shaft 5b, and the motor mounting member 5a is capable of displacement of rotating about the support shaft 5 b.

Next, a third transmission gear 15 that meshes with the positioning sprocket gear 11 and the second transmission gear 52 is included in at least one gear. Therefore, the slide member 15a supporting the third transmission gear 15 is fitted into the guide groove 43 (see also fig. 2) formed in the main body portion 2 of the tape feeder 1. That is, the slide member 15a is guided in the predetermined direction indicated by the arrow t with respect to the main body 2 of the tape feeder 1 by the guide surface 43a of the guide groove 43. Here, the predetermined direction indicated by the arrow t is a direction in which the relative positions of the third transmission gear 15, the positioning sprocket gear 11, and the second transmission gear 52 can be finely adjusted together, and the sliding member 15a can be displaced so as to slide in the predetermined direction.

Therefore, the motor mounting member 5A and the slide member 15A are mounted so that the displacement of the motor mounting member 5A rotating around the support shaft 5B and the displacement of the slide member 15A sliding in a predetermined direction can be adjusted by the position adjusting tool 44 shown in fig. 15A to 15B. That is, the position adjustment tool 44 described below is fitted into the adjustment openings 42 provided in the motor mounting member 5a and the slide member 15a, respectively, and performs a predetermined adjustment operation, thereby performing fine adjustment of the positions of the motor mounting member 5a and the slide member 15 a. After the fine adjustment is performed, the fixing screws 5c and 15d are fastened, respectively, thereby fixing the motor mounting member 5a and the slide member 15a with respect to the main body portion 2.

Fig. 15A to 15B show the structure and the adjustment operation of the position adjustment tool 44 used for the fine adjustment. As shown in fig. 15A, the position adjustment tool 44 is formed in the following structure: a cylindrical rod-shaped operation member 45 is coupled to a circular member 46, and the operation member 45 has a protrusion 45a in which the tip end of the operation member 45 protrudes from the circular member 46.

The position adjustment tool 44 is an eccentric tool, and as shown in fig. 15B, the axis of the operation member 45 is set to be eccentric by a predetermined eccentric amount e with respect to the center of the circular member 46. A fitting portion 2j for fitting the protrusion 45a is provided in the main body portion 2 at a position corresponding to the adjustment opening 42 formed in the motor mounting member 5a or the slide member 15 a.

In order to finely adjust the positions of the motor mounting member 5a and the slide member 15a by the position adjusting tool 44, as shown in fig. 15C, the circular member 46 is fitted into the adjusting opening 42 provided in the motor mounting member 5a and the slide member 15a, and the protrusion 45a is fitted into the fitting portion 2j. Then, the operating member 45 is rotated in this state (arrow u), and the circular member 46 is rotated around the operating member 45. At this time, by adjusting the rotational direction and the amount of rotation of the operation member 45, the motor mounting member 5a and the slide member 15a can be displaced by a desired adjustment amount (arrow v).

In this position adjustment, as shown in fig. 16, first, the fixing screws 5C and 15d are loosened to make the motor mounting member 5a and the slide member 15a displaceable, and the working operation shown in fig. 15C is performed. That is, the position adjustment tool 44 is inserted into the motor mounting member 5a and the adjustment opening 42 of the slide member 15a in this order, and the operation shown in fig. 15C, that is, the operation of rotating the operation member 45 by a desired amount (arrows x, y) is performed.

By this operation, the motor mounting member 5a is displaced around the support shaft 5b so as to move the drive gear 50 in the arrow s direction. Similarly, the slide member 15a is displaced so as to slide the third transmission gear 15 in the arrow t direction. Then, the backlash of the meshing portions of the drive gear 50 and the first transmission gear 51, and the meshing portions of the third transmission gear 15 and the positioning sprocket gear 11 and the second transmission gear 52 are adjusted by the displacement. After the backlash is adjusted in this way, the motor mounting member 5a and the slide member 15a are fixed in position by tightening the fixing screws 5c and 15 d.

As described above, the tape feeder 1 according to the present embodiment conveys the carrier tape 20 having the plurality of concave grooves 20b in which the components are accommodated and the cover tape 20a sealing the concave grooves 20b, and supplies the components to the component mounting device. The tape feeder 1 includes: a tape conveying unit 3 that engages with the carrier tape 20 and conveys the carrier tape 20; an openable/closable cover 18 that covers the upper side of the carrier tape 20 conveyed by the tape conveying unit 3 and is openable/closable; and a pair of driving peeling roller 22 and driven peeling roller 23 which take back the cover tape 20a peeled off from the carrier tape 20. The distance between the pair of driving peeling roller 22 and driven peeling roller 23 changes in conjunction with the opening and closing of the opening and closing cover 18. With this configuration, the opening and closing of the opening and closing cover 18 and the opening and closing of the pair of driving peeling roller 22 and driven peeling roller 23 can be performed simultaneously by a single operation, and the preparation work for setting the carrier tape 20 can be simplified, thereby improving the work efficiency.

In addition, a modification of the tape feeder 1 shown in the present embodiment includes, in addition to the tape feeder 1 having the same configuration as described above: a pair of driving peeling roller 22 and driven peeling roller 23 for sandwiching and withdrawing the cover tape 20a, thereby peeling the cover tape 20a from the carrier tape 20; and a tape cover 24 that presses the carrier tape 20 and is provided with a peeling portion 24a that peels off the cover tape 20a. This makes it possible to selectively execute two types of peeling methods. With this configuration, even when a plurality of types of carrier tapes 20 having different characteristics are targeted, cover tape 20a can be reliably peeled from carrier tape 20 by a peeling method according to the characteristics of carrier tape 20, and occurrence of mounting failure can be suppressed.

In addition, another modification of the tape feeder 1 shown in the present embodiment includes, in addition to the tape feeder 1 having the same configuration as described above: a positioning sprocket 7 which is engaged with a feed hole 20c provided in the carrier tape 20 and rotates to feed the component to a supply position 4b for supplying the component mounting apparatus; and a discharge sprocket 8 which engages with the feed hole 20c of the carrier tape 20 after the component is supplied and rotates, thereby discharging the carrier tape 20 from the tape feeder 1. The diameter of the discharge sprocket 8 is set smaller than the diameter of the positioning sprocket 7. Thus, in the tape feeder 1 having the structure of the discharge sprocket 8, the tip portion can be downsized, and the compactness can be achieved.

In addition, another modification of the tape feeder 1 shown in the present embodiment includes, in addition to the tape feeder 1 having the same configuration as described above: a pair of driving peeling roller 22 and driven peeling roller 23 which are provided on the tape transport path 4 for transporting the carrier tape 20 and which sandwich and retrieve the cover tape 20 a; and a tape pressing member 30 that presses the upper surface of the carrier tape 20 and is displaceable in the thickness direction of the carrier tape 20. The driven peeling roller 23, which is one of the pair of rollers, is provided rotatably to the tape pressing member 30. Thus, in the configuration in which the cover tape 20a is retrieved by the pair of rollers, the cover tape 20a can be stably retrieved even when a thin carrier tape 20 is targeted.

In addition, another modification of the tape feeder 1 shown in the present embodiment includes, in the tape feeder 1 having the same structure as described above: a positioning sprocket 7 which is engaged with a feed hole 20c provided in the carrier tape 20 and rotates to feed the component to a supply position for supplying the component mounting apparatus; a motor 5 that generates torque for rotating the positioning sprocket 7; and at least one gear that transmits torque to the positioning sprocket 7. The tape feeder is configured to have a motor mounting member 5a and a slide member 15a that rotatably support at least one gear and are displaceable with respect to the main body 2 of the tape feeder 1. This makes it possible to easily adjust the backlash and to ensure high accuracy of the stop position of the component.

Next, another modification of the component supply device according to the present embodiment will be described with reference to fig. 17A and 17B. In the tape feeder 1 shown in fig. 1 to 16, the downstream side is lifted up in the opening and closing operation of the opening and closing cover 18 to open the opening and closing cover 18. In contrast, in the modified embodiment shown in fig. 17A and 17B, the open/close cover 118 is opened by lifting the upstream side.

In fig. 17A, the tape feeder 101 has a function of conveying the carrier tape 20 and supplying components to the component mounting apparatus, similarly to the tape feeder 1 shown in fig. 5. The tape feeder 101 includes a tape conveying portion 103, and the tape conveying portion 103 has the same structure and function as the tape conveying portion 3 in the tape feeder 1. The tape conveying section 103 includes a positioning sprocket 107 and a discharge sprocket 108 in the same manner as the tape feeder 1, and the positioning sprocket 107 and the discharge sprocket 108 engage with the carrier tape 20 supplied from the upstream side along the tape pressing member 130 in the tape conveying path 4. The positioning sprocket 107 and the discharge sprocket 108 are driven to rotate by a drive motor (not shown), so that the tape conveying section 103 conveys the carrier tape 20 downstream and positions it at a predetermined component supply position.

The upper side of the carrier tape 20 conveyed by the tape conveying section 103 is covered with an openable/closable cover 118. The opening/closing cover 118 has the same sectional shape as the opening/closing cover 18 in the tape feeder 1, and its upper face is formed to abut against and press the covering portion 118a of the carrier tape 20. The carrier tape 20 is engaged with the positioning sprocket 107 and the discharge sprocket 108 by pressing the upper surface of the carrier tape 20 with the opening/closing cover 118.

The opening and closing operation of the opening and closing cover 118 and the cover attachment portion that presses and attaches the opening and closing cover 118 to the main body portion 102 will be described. A downstream-side mounting portion 109 and an upstream-side mounting portion 110 having the following configurations are provided in the main body portion 102 at positions corresponding to downstream-side and upstream-side end portions of the opening/closing cover 118, respectively.

The downstream-side mounting portion 109 will be explained below. A substantially portal cross-sectional shape holding member 60 is fixed to the downstream end of the body 102. In the state where the opening/closing cover 118 is attached, the side surface (the paper surface in fig. 17A) of the holding member 60 is sandwiched from both sides in the horizontal direction by the side surface of the opening/closing cover 118. A long hole 60a extending in the vertical direction is formed in a side surface of the holding member 60. A cover attachment pin 118b inserted in the horizontal direction and protruding to both sides is fixed to the downstream-side tip end of the opening/closing cover 118. In a state where the opening/closing cover 118 is attached, the cover attachment pin 118b is fitted into the long hole 60a in a state where movement in the up-down direction is permitted.

A compression spring member 61 that biases the cover attachment pin 118b downward is attached to the inside of the holding member 60. Thereby, the cover fitting pin 118b is pushed toward the lower end portion within the elongated hole 60a, and is held in position in this state. That is, the opening/closing cover 118 is held by the downstream side attachment portion 109 to the main body portion 102, and a downward pressing force (arrow z 1) acts on the front end portion of the opening/closing cover 118. Instead of the compression spring member 61, a torsion spring may be used.

Next, the upstream mounting portion 110 will be explained. In the main body 102, the locking piece 62 is pivotally supported by a horizontally disposed shaft support pin 63 on the upstream side of the opening/closing cover 118. A locking pin 65 extends downstream of the upper end of the locking block 62. An engaged portion 118c is provided at an upstream end of the opening/closing cover 118. The distal end portion of the locking pin 65 is located at a position where it can abut against and lock the locked portion 118c from above in the state shown in fig. 17A, that is, in the state where the opening/closing cover 118 is closed.

Further, an extension spring member 64 is coupled to the upstream side of the lower end portion of the locking piece 62, and a rotational biasing force for rotating the locking piece 62 clockwise about the shaft support pin 63 as a fulcrum is applied. Thus, in the state where the opening/closing cover 118 is closed, the locking pin 65 abuts against the locked portion 118c from above, and presses the upstream end portion of the opening/closing cover 118 downward (arrow z 2).

That is, the state shown in fig. 17A is as follows: at the respective distal end portions of the downstream side and the upstream side of the opening/closing cover 118, downward pressing forces are applied to the opening/closing cover 118 by the downstream side attachment portion 109 and the upstream side attachment portion 110, respectively. Thereby, the opening/closing cover 118 is pressed against the tape conveying portion 103, and maintains the engagement state of the carrier tape 20 with the positioning sprocket 107 and the discharge sprocket 108, and the state of being mounted on the main body portion 102 of the tape feeder 101. When a downward pressing force is applied to the opening/closing cover 118, the lower surface of the carrier tape 20 is brought into close contact with the main body 102, and the upper surface of the carrier tape 20 is brought into close contact with the lower surface of the opening/closing cover 118. Thus, the carrier tape 20 is guided by the lower surfaces of the main body 102 and the opening/closing cover 118, and therefore the carrier tape 20 can be stably conveyed. That is, the downstream side mounting portion 109 and the upstream side mounting portion 110 constitute a cover mounting portion that presses the opening and closing cover 118 against the tape conveying portion 103 and mounts it to the main body portion 102 of the tape feeder 101.

The tape conveying path 4 is provided with a tape covering member 124 on the downstream side of the tape pressing member 130 along the tape conveying path 4 to a position immediately before the component feeding position. The downstream-side tip end portion of the tape covering member 124 is folded back upstream by wrapping the cover tape 20a peeled off from the carrier tape 20 back downstream, and functions as a peeling portion for peeling the cover tape 20a (see fig. 10).

In this way, the tape feeder 101 includes a pair of rollers, i.e., a driving peeling roller 122 and a driven peeling roller 123, which take back the cover tape 20a peeled off from the carrier tape 20. The driven peeling roller 123, which is one of the pair of rollers, is attached to the opening/closing cover 118. Further, a driving peeling roller 122, which is the other roller of the pair of rollers, is provided at the tip end portion of the belt pressing member 130 disposed along the belt conveying path 4.

The rotation of the transmission gear mechanism 117 driven to rotate by the motor 105 is transmitted to the drive peeling roller 122 via the idler gear 116. The motor 105, the transmission gear mechanism 117, and the idle gear 116 constitute a roller driving mechanism that drives the peeling roller 122, which is the other roller of the pair of rollers.

The cover tape 20a peeled off by the peeling portion at the front end portion of the tape cover 124 is folded back toward the upstream side. Then, the driving peeling roller 122 is driven in a state where the cover tape 20a is sandwiched between the pair of driving peeling roller 122 and driven peeling roller 123, whereby the cover tape 20a is retrieved and sent into the cover tape housing 102b provided in the main body portion 102.

Fig. 17B shows a state in which the upstream side attachment portion 110 is operated to release the locking of the upstream side of the opening/closing cover 118, and the opening/closing cover 118 is opened. When the opening/closing cover 118 is opened, the locking piece 62 is rotated in the locking release direction (arrow z 3) against the urging force of the tension spring member 64. Thus, the locking of the locked portion 118c by the locking pin 65 is released, and the opening/closing cover 118 can be rotated in the opening direction (arrow z 4) to open the opening/closing cover 118.

Accordingly, the driven peeling roller 123 attached to the opening/closing cover 118 also moves together and is separated from the driving peeling roller 122. In the tape feeder 101 shown in the present embodiment, the distance between the pair of rollers, i.e., the driving peeling roller 122 and the driven peeling roller 123, which take back the cover tape 20a peeled off from the carrier tape 20, changes in conjunction with the opening and closing of the opening and closing cover 118.

That is, when the opening/closing cover 118 is closed and covers the upper side of the carrier tape 20, the pair of driving peeling rollers 122 and driven peeling rollers 123 nip and capture the cover tape 20a. When the opening/closing cover 118 is opened, the gap between the pair of driving peeling roller 122 and driven peeling roller 123 is widened to release the cover tape 20a. Thus, in the installation work of the carrier tape 20 to the tape feeder 101, the carrier tape 20 can be installed to the tape feeder 101 only by a simple operation of closing the opening/closing cover 118 without a complicated operation of sandwiching the peeled cover tape 20a between the pair of driving peeling roller 122 and driven peeling roller 123.

The tape feeder 1 in the present embodiment conveys the carrier tape 20 in which the plurality of recesses 20b accommodating the components P are sealed with the cover tape 20a, and supplies the components P to the component mounting device. The tape feeder 1 includes a pair of rollers (a driving peeling roller 22, a driven peeling roller 23) and a first cover (a tape cover 24). Here, the pair of rollers sandwich the cover tape 20a and take it back, thereby peeling the cover tape 20a from the carrier tape 20. The first cover (tape cover 24) presses the carrier tape 20 and is provided with a peeling portion 24a that peels off the cover tape 20a.

The tape feeder 1 is further provided with an introducing portion. Here, the introduction section is provided at a position corresponding to the pair of rollers in the conveyance path of the carrier tape 20, and introduces the cover tape 20a to the pair of rollers by air flow.

The introducing portion of the tape feeder 1 ejects air to introduce the cover tape 20a to the pair of rollers.

The introducing portion of the tape feeder 1 may introduce the cover tape 20a to the pair of rollers by negative pressure.

The tape feeder 1 is further provided with a second cover (opening/closing cover 18). Here, the second cover (the opening/closing cover 18) has a supply portion (a component take-out opening portion 18 b) that supplies the component P to the component mounting device, and is provided so as to be openable and closable with respect to the main body of the tape feeder 1.

The tape cover 24 of the tape feeder 1 is fixed to the tape pressing member 30.

The cover tape 20a of the tape feeder 1 is peeled by being folded back toward a direction opposite to the conveying direction of the carrier tape 20 by the peeling part 24a of the tape cover 24. The cover tape 20a peeled off by the peeling section 24a passes between the tape cover 24 and the opening/closing cover 18 and is retrieved by the pair of rollers.

The tape feeder 1 conveys the carrier tape 20 in which the plurality of pockets 20b accommodating the components P are sealed with the cover tape 20a, and supplies the components P to the component mounting apparatus. The tape feeder 1 is provided with a first peeling path and a second peeling path. Here, the first peeling path includes a conveyance path (belt conveyance path 4) for conveying the carrier tape 20 and a pair of rollers (driving peeling roller 22 and driven peeling roller 23). The pair of rollers sandwich the cover tape 20a positioned at the leading end of the carrier tape 20, and peel the cover tape 20a from the carrier tape 20. The second peeling path has a tape cover 24 and a path for guiding the cover tape 20a peeled off by the peeling section 24a to a pair of rollers. The tape cover 24 presses the carrier tape 20, and has a peeling portion 24a that peels the cover tape 20a from the carrier tape 20 at an end portion on the conveyance direction side of the carrier tape 20.

As described above, according to the present invention, the preparation work for setting the carrier tape can be simplified and the work efficiency can be improved.

Industrial applicability

The component supplying device of the invention has the effect of simplifying the preparation operation for arranging the carrier tape and improving the operation efficiency. Therefore, the tape feeder is useful in the field of component mounting in which components taken out from the tape feeder are mounted on a substrate.

Description of the reference numerals

1. 101 tape feeder

2. 102 main body part

3. 103 belt conveying part

4. Belt conveying path

5. 105 motor

5a Motor mounting Member

6. Conveying chain wheel

7. 107 positioning sprocket

8. 108 discharge sprocket

10. Feeder control part

11. Positioning sprocket gear

12. Discharge sprocket gear

13. Fourth transmission gear

14. Conveying sprocket gear

15. Third drive gear

15a sliding member

16. Stripping roller gear

17. Fifth transmission gear

18. 118 opening and closing cover

18a, 118a cover

18b member take-out opening

19. Opening/closing cover holding part

19a first engaging part

19b second engaging part

19d force application mechanism

20. Carrier tape

20a cover tape

20b groove

21. Belt stripping mechanism

22. 122 drive the stripper roll

23. 123 driven peeling roller

24. 124 tape covering

24a peeling part

30. 130 belt pressing member

30a convex part

31. Block

33. 64 spring component

38. Entanglement preventing member

40a positioning projection

44. Position adjusting tool

46. Circular component

109. Downstream side assembling part

110. An upstream side fitting section.

Claims (10)

1. A component feeder for feeding a carrier tape having a plurality of grooves for housing components and a cover tape for sealing the grooves to a component mounting device,

the component supply device includes:

a transport unit that transports the carrier tape;

a cover member that can be opened and closed so as to be switched between a position covering the carrier tape conveyed by the conveying unit and a position not covering the carrier tape; and

a pair of rollers that retrieve the cover tape peeled off from the carrier tape,

the distance between the pair of rollers is changed in conjunction with the opening and closing of the cover.

2. The component supplying apparatus according to claim 1,

when the covering member is closed to cover the upper side of the carrier tape, the pair of rollers clamp and capture the covering tape,

when the cover is opened, the gap between the pair of rollers is widened to release the cover tape.

3. The component supplying apparatus according to claim 1,

the component supply device further includes a cover holding portion which is rotatably fixed to the main body portion of the component supply device, is connected to the base portion of the cover, holds the cover, and opens and closes the cover,

one of the pair of rollers is attached to the cover holding portion.

4. The component supplying apparatus according to claim 3,

the component supplying apparatus further includes a positioning member that performs positioning of the cover holding portion,

the cover holding portion has a first engaging portion that engages with the positioning member at a position where the cover is opened.

5. The component supplying apparatus according to claim 4,

the cover holding portion has a second engaging portion that engages with the positioning member at a position where the cover is closed.

6. The component supplying apparatus according to claim 3,

the component supply device further includes:

a roller gear coaxial with the one roller; and

a roller drive gear that rotates the one roller by driving the roller gear,

by rotating the cover holding portion coaxially with the roller drive gear, the cover is opened and closed, and the roller gear rolls on the outer periphery of the roller drive gear.

7. The component supplying apparatus according to claim 3,

the cover holding portion has an urging mechanism that applies an urging force that presses the cover against the conveying portion.

8. The component supplying apparatus according to claim 1,

one of the pair of rollers is attached to the cover.

9. The component supplying apparatus according to claim 8,

the component supply device further includes a cover attachment portion that presses the cover against the transport portion.

10. The component supplying apparatus according to claim 8,

the component supply device further includes a roller drive mechanism that drives the other roller of the pair of rollers.

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