KR101616772B1

KR101616772B1 - Work inserting instrument and work inserting method

Info

Publication number: KR101616772B1
Application number: KR1020100036822A
Authority: KR
Inventors: 무츠미 무로후시; 세이지 호리
Original assignee: 가부시키가이샤 도쿄 웰드
Priority date: 2009-04-23
Filing date: 2010-04-21
Publication date: 2016-04-29
Also published as: CN101873792B; TW201103849A; KR20100117031A; TWI460101B; JP5294204B2; JP2010254332A; CN101873792A

Abstract

An object of the present invention is to provide a work insertion mechanism for easily and reliably inserting a work stored in a work receiving hole of a carrier table into a cavity of a carrier tape.
The workpiece insertion mechanism 11 of the present invention is disposed in the insertion portion 11A which is the connecting portion of the carrier tape 2 and the carrier tape 2 The work W housed in the hole 3 is inserted into the cavity 13 of the carrier tape 12. Then, The workpiece insertion mechanism 11 is provided with a suction nozzle 15 provided so as to be movable in the vertical direction and a magnet 16 provided below the carrier tape 12 and sucking the workpiece W in the cavity 13 . The suction nozzle 15 is controlled by the control section 100a to pick up the workpiece W in the work receiving hole 3 when it is in the upper limit position 15a and descend to the lower limit position 15b, And the work W is inserted into the cavity 13.

Description

WORK INSERT INSTRUMENT AND WORK INSERTING METHOD [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a workpiece insertion mechanism and a workpiece insertion method for inserting a work such as a chip-type electronic component carried by a workpiece transfer device and inspected into a carrier tape, And a work insertion method.

BACKGROUND ART Conventionally, a work insertion device for inserting a work stored in a work receiving hole of a work transfer device into a cavity of a carrier tape is provided at a connecting portion between a work transfer device having a work receiving hole and a carrier tape having a cavity, It is known that there is provided an electronic control unit.

The work inserting mechanism has a suction nozzle for sucking a work in a work receiving hole of a work transfer device at a lower end thereof and inserting the work into a cavity of the carrier tape. The work stored in the work receiving hole of the work transfer device is sucked by the lower end of the suction nozzle. The work is lowered in accordance with the drop of the adsorption nozzle and the workpiece adsorbed by the adsorption nozzle enters into the cavity of the carrier tape.

Thereafter, the carrier tape moves, and the workpiece attracted to the lower end of the suction nozzle is separated from the suction nozzle by the cavity wall surface of the carrier tape, and is housed in the cavity of the carrier tape.

As described above, the workpiece attracted to the lower end of the suction nozzle enters the cavity of the carrier tape, and is accommodated in the cavity along with the movement of the carrier tape.

In this case, the carrier tape may move in a state in which the workpiece is not fully inserted into the cavity of the carrier tape due to, for example, an adjustment failure or the like. In this case, Or may protrude outward from the cavity of the carrier tape.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a work insertion mechanism and a work insertion method capable of easily and reliably inserting a work stored in a work receiving hole of a work transport apparatus into a cavity of a carrier tape do.

The present invention relates to a workpiece carrying apparatus having a workpiece carrying device having a workpiece receiving hole provided so as to penetrate and a carrier tape provided below the workpiece carrying device and having a cavity, A workpiece insertion mechanism for receiving the workpiece in the workpiece receiving hole and for inserting the workpiece in a cavity of the carrier tape, the workpiece insertion mechanism comprising: an air adsorption function provided so as to be movable in the vertical direction between the upper limit position and the lower limit position, And a magnet for suctioning the work stored in the cavity, wherein the suction nozzle is controlled by the control unit so that when the workpiece is held at the upper limit position, And then drops to the lower limit position to eject the work by air and insert it into the cavity To the workpiece.

In the present invention, a work sensor for detecting a work to be inserted into the cavity from the work receiving hole of the work transport apparatus is provided in the vicinity of the cavity of the carrier tape, the suction nozzle is movable in the horizontal direction, And a control unit for controlling the suction nozzle to move the suction nozzle in the cavity when the workpiece is not correctly inserted in the cavity based on a signal from the work sensor, And in a horizontal direction from above the work receiving hole and further bringing the suction discharge nozzle above the cavity and the work receiving hole to discharge the work in the cavity by the suction discharge nozzle.

The present invention is a workpiece insertion mechanism characterized in that the workpiece sensor is disposed below the lower limit position of the suction nozzle.

The present invention is characterized in that the work sensor has a light emitting portion and a light receiving portion and turns ON when the light receiving portion receives light and turns OFF when the light receiving portion does not receive light, OFF, and when it is shifted to ON, it is determined that the workpiece is correctly inserted in the cavity.

According to the present invention, a work in a work receiving hole of a work transfer device is received at a connection portion between a work transfer device having a through-hole provided therein and a carrier tape located below the work transfer device and having a cavity, A method for inserting a workpiece into a cavity of a tape, the method comprising: a step of adsorbing a workpiece in a work receiving hole by an adsorption nozzle at an upper position; a step of lowering the adsorption nozzle to a lower limit position, A step of detecting by the work sensor whether or not a workpiece is correctly inserted in the cavity; and a step of raising the suction nozzle to detect the cavity and the workpiece in the case where it is detected by the work sensor that the workpiece is not correctly inserted in the cavity, Is moved in the horizontal direction from above the work receiving hole, and the suction discharge nozzle Bringing the Bt and the work receiving hole above, a work insertion method characterized in that it includes a step of emission by the workpiece in the cavity to a suction discharge nozzle.

As described above, according to the present invention, it is possible to reliably insert the workpiece adsorbed by the adsorption nozzle into the cavity of the carrier tape by jetting air from the adsorption nozzle by lowering the adsorption nozzle. At this time, since the magnet for sucking the work stored in the cavity is provided below the carrier tape, it is possible to reliably store the work in the correct position in the cavity. Further, since the work is inserted into the cavity by ejecting air from the suction nozzle, the work can be quickly separated from the suction nozzle, and the suction nozzle can be quickly lifted thereafter.

1 is a plan view showing an embodiment of a work insertion mechanism according to the present invention;
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a workpiece insertion mechanism.
3 is an explanatory view showing the work inserting method of the work inserting mechanism according to the present invention.
Fig. 4 is an explanatory view showing the work inserting method of the work inserting mechanism according to the present invention; Fig.
Fig. 5 is an explanatory view showing the work inserting method of the work inserting mechanism according to the present invention; Fig.
Fig. 6 is an explanatory view showing the work inserting method of the work inserting mechanism according to the present invention; Fig.
7 is an explanatory view showing the work inserting method of the work inserting mechanism according to the present invention.
8 is an explanatory view showing the work inserting method of the work inserting mechanism according to the present invention.
Fig. 9 is an explanatory view showing the work inserting method of the work inserting mechanism according to the present invention; Fig.
10 is an explanatory view showing the work inserting method of the work inserting mechanism according to the present invention.
11 is an explanatory view showing the work inserting method of the work inserting mechanism according to the present invention.
Fig. 12 is an explanatory view showing the work inserting method of the work inserting mechanism according to the present invention; Fig.
13 is an explanatory view showing the work inserting method of the work inserting mechanism according to the present invention.
Fig. 14 is an explanatory view showing the work inserting method of the work inserting mechanism according to the present invention; Fig.
Fig. 15 is an explanatory view showing the work inserting method of the work inserting mechanism according to the present invention; Fig.
16 is an explanatory view showing the work inserting method of the work inserting mechanism according to the present invention.
17 is an explanatory view showing the work inserting method of the work inserting mechanism according to the present invention.
18 is an explanatory view showing the work inserting method of the work inserting mechanism according to the present invention.
19 is a perspective view showing a work sensor of the work insertion mechanism;
20 is a side view showing a work sensor of the workpiece insertion mechanism;
21 is a plan view showing a comparative example of a work insertion mechanism;
22 is an explanatory view showing the work inserting method of the comparative example of the work inserting mechanism;
23 is an explanatory view showing the work inserting method of the comparative example of the work inserting mechanism.
24 is an explanatory view showing the work inserting method of the comparative example of the work inserting mechanism;
25 is an explanatory view showing the work inserting method of the comparative example of the work inserting mechanism.
26 is an explanatory view showing the work inserting method of the comparative example of the work inserting mechanism;
Fig. 27 is an explanatory view showing the work inserting method of the comparative example of the work inserting mechanism. Fig.
28 is an explanatory view showing the work inserting method of the comparative example of the work inserting mechanism;
29 is an explanatory view showing the work inserting method of the comparative example of the work inserting mechanism;
30 is an explanatory view showing the work inserting method of the comparative example of the work inserting mechanism.
31 is an explanatory view showing the work inserting method of the comparative example of the work inserting mechanism.
32 is an explanatory view showing the work inserting method of the comparative example of the work inserting mechanism;
Fig. 33 is an explanatory view showing the work inserting method of the comparative example of the work inserting mechanism. Fig.
34 is an explanatory view showing the work inserting method of the comparative example of the work inserting mechanism;
35 is an explanatory view showing an operation of inserting a work in a comparative example of a work insertion mechanism;

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

1 to 20 are views showing an embodiment of a work insertion mechanism and a work insertion method according to the present invention.

First, a taping apparatus 100 in which a work insertion mechanism according to the present invention is assembled will be described with reference to Fig.

As shown in Fig. 1, a taping apparatus 100 includes a table base 1 arranged in a horizontal direction and a circular transfer table (work transfer apparatus) 2 provided on a table base 1. As the workpiece conveyance device, a conveyance belt may be used instead of the conveyance table 2. The carrying table 2 has a plurality of work receiving holes 3 that are opened toward the outer periphery of the carrying table 2 and penetrate the carrying table and the work receiving holes 3 are arranged at equal intervals And the work W in the form of a rectangular parallelepiped is individually housed. The transport table 2 is intermittently rotated in the clockwise direction (the direction of the arrow A) around the vertical central axis 4 by a driving mechanism (not shown) A guard wall (not shown) is formed on the periphery of the conveyance table 2, except for the vicinity of the separation / supply unit 6, which will be described later, so that the work W in the conveyance table 2 does not protrude to the outside of the conveyance table 2 by centrifugal force. Respectively.

The work W is fed from a parts feeder (not shown), transferred to a linear feeder 5, and conveyed in a line by a vibration toward the conveying table 2. The end portion of the linear feeder 5 is opposed to the opening of the work receiving hole 3 of the transfer table 2 and the work W is individually housed by the action of the separation / And is stored in the hole 3. The work W accommodated in the work receiving hole 3 is conveyed by the intermittent rotation of the conveyance table 2 and the first inspection is performed when the work W arrives at the first inspection section 7. The work W determined to be defective by the inspection result is discharged therefrom when it reaches the first discharge portion 8 by the intermittent rotation of the conveyance table 2. The workpiece W determined to be good in the first inspection section 7 passes through the first discharge section 8 as it is and reaches the second inspection section 9 by the transport table 2. A second inspection is performed on the work W in the second inspection section 9 and the work W judged as defective by the inspection result is transferred to the second discharge section 10 by the intermittent rotation of the transfer table 2. [ And is discharged from the second discharge portion 10. The workpiece W determined to be good in the second inspection section 9 passes through the second discharge section 10 as it is by the transport table 2 and reaches the insertion section (connection section) 11A. The work W housed in the work receiving hole 3 is inserted into the cavity 13 which is provided at equal intervals on the carrier tape 12 located below the transport table 2 at the insertion portion 11A and opened at the upper side Respectively.

Next, the work insertion mechanism 11 according to the present invention will be described. The workpiece insertion mechanism 11 includes a transfer table 2 having a work receiving hole 3 formed so as to penetrate therethrough and a connection portion between the carrier tape 12 having a cavity 13 and located below the transfer table 2 And is inserted into the cavity 13 of the carrier tape 12 by receiving the workpiece W in the work receiving hole 3 of the transport table 2.

2 to 9, the work insertion mechanism 11 is provided so as to be movable in the vertical direction between the upper limit position 15a and the lower limit position 15b, A magnet 16 which is provided below the carrier tape 12 and sucks the work W housed in the cavity 13 and a magnet 16 which is provided in the cavity 13 of the carrier tape 12. The attracting nozzle 15 attracts the workpiece W, And a work sensor 17 which is provided in the vicinity of the work 13 and detects whether or not the work W is correctly inserted into the cavity 13.

The suction nozzle 15 has a function of sucking the workpiece W in the work receiving hole 3 by vacuum and a function of ejecting the workpiece W by air and storing the workpiece W in the cavity 13. 19, the work sensor 17 has a light emitting element group 17a and a light receiving element group 17b.

12 and 15, the work W in the cavity 13 is sucked through the work receiving hole 3 in the vicinity of the suction nozzle 15, and then sucked and discharged to the outside And a nozzle 18 is provided.

The suction nozzle 15 and the suction discharge nozzle 18 of the workpiece insertion mechanism 11 are provided in the workpiece insertion mechanism main body 11a. The suction nozzle 15 and the suction discharge nozzle 18 move in the direction of the arrow G as the workpiece insertion mechanism main body 11a moves in the direction of arrow G shown in Fig. 12 from the horizontal direction by the drive mechanism The suction nozzle 15 is laterally outward from the cavity 13 and the work receiving hole 3 so that the suction discharge nozzle 18 reaches the cavity 13 and the work receiving hole 3. The workpiece insertion mechanism main body 11a moves in the direction of arrow H shown in Fig. 15 in the horizontal direction and the suction nozzle 15 returns to the upper side of the cavity 13 and the work receiving hole 3 ).

The suction nozzle 15 is vertically movable in the workpiece insertion mechanism main body 11a and the workpiece insertion mechanism main body 11a, the suction nozzle 15 and the suction / Is controlled by the control section 100a together with the carrier tape 2 and the carrier tape 12. [

Incidentally, in the insertion portion 11A, the lower side of the work receiving hole 3 is open. Therefore, in the place where the work receiving hole 3 other than the insertion portion 11A passes, the table base 1 is positioned below the transport table 2 to prevent the work from falling down. A separator 14 is provided along the longitudinal direction of the carrier tape 12 at the passage of the work receiving hole 3 in the vicinity of the inserting portion 11A, (2) and prevents the work W from dropping. The separator 14 also serves to prevent the carrier tape 12 from splashing in the vicinity of the insertion portion 11A, in addition to preventing the workpiece W from dropping. A magnet 16 is provided at a position directly under the cavity 13 of the carrier tape 12 in the insertion portion 11A and the work W inserted in the cavity 13 is provided as described above. So that the posture of the work W is stabilized. Since the workpiece W is an electronic component, the workpiece W has an electrode made of a metal component, which is attracted to the magnet 16. 1, when the workpiece W is received in the cavity 13, the carrier tape 12 is intermittently transported in the direction of arrow B by a drive mechanism (not shown), and is transported by a tape attaching mechanism The cover tape is pasted on the upper surface of the carrier tape 12, and the cavity 13 is clogged.

1, there are provided two inspection sections, that is, a first inspection section and a second inspection section. However, depending on the type of inspection, the third inspection section and the fourth inspection section may be further provided, or only the first inspection section may be provided.

Next, the operation of the present embodiment having such a configuration, that is, the work inserting method will be described with reference to Figs. 2 to 17, which are perspective views seen from arrow X of Fig.

2, the carrying table 2 accommodates a workpiece W in the form of a rectangular parallelepiped in the work receiving hole 3 and intermittently rotates in the direction of the arrow A1 (corresponding to the arrow A in Fig. 1). An upper portion of the transport table 2 is opened in the inserting portion 11A and a suction nozzle (not shown) for moving up and down by a drive source (not shown) toward the work receiving hole 3 of the transport table 2 15) is lowered. An adsorption port 15c for adsorbing the workpiece W is opened at the lower end of the adsorption nozzle 15 and the adsorption port 15c is connected to a vacuum source 25a through a switching valve 25c Vacuum suction is performed in the direction of the arrow C to adsorb the workpiece W. In Fig. 2, the suction nozzle 15 stops at the upper limit position 15a where the lower end thereof is slightly higher than the upper surface of the transport table 2.

As described above, the separator 14 is provided between the carrier tape 12 and the transfer table 2, and the lower part of the work receiving hole 3 is blocked by the separator 14, but the suction nozzle 15 The separator 14 is not provided and the lower portion of the work receiving hole 3 is opened so that the cavity 13 of the carrier tape 12 is stopped immediately below the separator 14. 3, when the work receiving hole 3 reaches the position directly under the suction nozzle 15 and the conveying table 2 is stopped, the work W in the work receiving hole 3 reaches the lower end of the suction nozzle 15 . Next, the adsorption nozzle 15 descends in the direction of the arrow D while adsorbing the work W (see FIG. 4). As shown in Fig. 5, the suction nozzle 15 stops at the lower limit position 15b where the lower end of the suction nozzle 15 becomes near the lower surface of the transport table. Next, the suction port 15c of the suction nozzle 15 connected to the vacuum source 25a is switched by the switching valve 25c so as to be connected to the compressed air supply source 25b. The compressed air is supplied to the inside of the suction nozzle 15 in the direction of the arrow F and the work W is discharged from the suction nozzle 15 toward the cavity 13 of the carrier tape 12 . 6 and 7, the work W ejected from the suction nozzle 15 is inserted into the cavity 13, which is opened at the upper side. A magnet 16 is provided on the lower side of the bottom surface of the cavity 13 and the work W having a metal portion is attracted and held on the bottom surface of the cavity 13 by the attracting force of the magnet 16, And is housed in the cavity 13.

The workpiece W in the cavity 13 is detected by the workpiece sensor 17 disposed in the vicinity of the cavity 13. [ Details of the work sensor 17 are shown in Figs. 19 and 20. Fig. Fig. 19 is a perspective view of the carrier tape 12 and the cavity 13 in the insertion portion 11A, and the arrow X in Fig. 1 is described so as to correspond to the direction. Fig. 20 is a perspective view of Fig. 19 viewed from the direction of arrow Y perpendicular to the arrow X. Fig. 19 and 20, the workpiece sensor 17 is composed of three light-emitting element groups 17a and three light-receiving element groups 17b. The respective light receiving elements of the light emitting element group 17b and the light receiving element group 17b of the light emitting element group 17a are provided at opposite positions on both sides of the carrier tape 12 with the cavity 13 therebetween have. The light emitting element group 17a projects light in the direction of the arrow S in Fig. 20, and the light receiving element group 17b detects light existing in the range T in which the oblique line is indicated.

Next, the operation of the work sensor 17 will be described in detail. First, in the range T shown in Fig. 20 described above with reference to Fig. 2 to Fig. 5, light passes through and the light receiving element group 17b detects light. Turn this state ON. 6, the work W ejected from the lower limit position 15b of the suction nozzle 15 toward the cavity 13 of the carrier tape 12 passes through the range T from above to below, The group 17b detects blocking of light. Turn this state OFF. Then, in Fig. 7, when the work W is received in the cavity 13, the light receiving element group 17b again detects light. This state is ON. Since the lower limit position 15b of the suction nozzle 15 is above the range T, the work sensor 17 detects this ON → OFF → ON and a signal from the work sensor 17 is sent to the control section 100a The control unit 100a determines that the work W has passed through the opening of the cavity 13. [ This means that the work W is inserted into the cavity 13 in the correct posture.

19, the number of the light emitting elements and the number of the light receiving elements constituting the light emitting element group 17a and the light receiving element group 17b are three, 20 in the range of the length Z of the opening of the cavity 13 in accordance with the direction shown in Fig. The number of the light emitting element and the number of the light receiving elements is determined optimally by the relationship between the length Z and the size of each light emitting element and each light receiving element.

8, when the workpiece sensor 17 detects that the workpiece W has passed through the opening of the cavity 13, the carrier tape 12 is intermittently moved in the direction of the arrow B by the control section 100a And the adsorption nozzle 15 rises in the direction of the arrow E. 9, the suction nozzle 15 stops at the upper limit position 15a at which the lower end of the suction nozzle 15 is located above the upper surface of the transport table 2. As shown in Fig. At this time, the cavity 13 into which the next workpiece W is inserted arrives at a position directly under the suction nozzle 15, and the carrier tape 12 stops. The transport table 2 starts intermittent rotation in the direction of the arrow A1 and carries the next work W toward the work insertion mechanism 11. The suction port 15c of the suction nozzle 15 is connected to the switch valve 25c to the vacuum source 25a. 2, and the suction port 15c of the suction nozzle 15 is vacuum-sucked in the direction of arrow C.

Next, the operation when the work W is not correctly housed in the cavity 13 will be described. In Fig. 10, the work W is inclinedly received in the cavity 13. Fig. At this time, part of the light receiving element group 17b constituting the work sensor 17 (the right end portion in Fig. 10) detects the interruption of light by the work W for a predetermined time or longer. That is, it is detected not from ON to OFF to ON but from ON to OFF.

The control section 100a judges that the work W is not inserted into the cavity 13 in the correct posture based on the signal from the work sensor 17. [ At this time, the suction nozzle 15 rises in the direction of the arrow E, and as shown in Fig. 11, the suction nozzle 15 is moved from the upper limit position 15a where the lower end thereof is positioned above the upper surface of the transport table 2 And the connection of the suction port 15c to the compressed air supply source 25b is released. Next, as shown in Fig. 12, the workpiece insertion mechanism main body 11a is moved in the direction of arrow G by the control section 100a, and as a result, as shown in Fig. 13, A suction / discharge nozzle 18 appears in place of the suction nozzle 15. As shown in Fig. 12, the suction and discharge nozzle 18 is connected to a vacuum source 28, vacuum suction is performed in the direction of arrow H in Fig. 14, and the work W, which is sloped and accommodated in the cavity 13, Is discharged to the outside through the work receiving hole (3) by the suction and discharge nozzle (18). 15, the workpiece insertion mechanism main body 11a moves in the direction of the arrow H, and as a result, as shown in Fig. 16, the cavity 13 and the upper side of the work receiving hole 3 The adsorption nozzle 15 appears again. 17, the suction nozzle 15 is connected to the vacuum source 25a through the switching valve 25c to start vacuum suction in the direction of the arrow C, and at the same time, the transport table 2 is moved in the direction indicated by the arrow A1 And the work W stored in the next work receiving hole 3 is transported toward the work insertion mechanism 11 and the work W is inserted from the state shown in Fig.

In the above-described embodiment, the case where the work W is inclined and accommodated is shown as an example in which the work W is not received in the correct posture in the cavity 13 (Fig. 10) It is possible to detect ON → OFF by the work sensor 17 in the same manner even when the entire workpiece W is floated and protrudes from the opening of the cavity 13 as shown in FIG.

As described above, according to the present embodiment, the suction nozzle 15 is lowered, and the work W sucked by the suction nozzle 15 is ejected from the suction nozzle 15 to be reliably ejected into the cavity 13 It is possible to insert it. In addition, the work W inserted into the cavity 13 can be held in the correct posture by the magnet 16. [ Furthermore, since the work W sucked by the suction nozzle 15 is ejected by the air, the work W is quickly separated from the suction nozzle 15, and then the suction nozzle 15 is quickly moved up . Even when the work W is not properly inserted into the cavity 13, the work W in the cavity 13 is discharged to the outside by the suction and discharge nozzle 18, It is possible to securely insert the workpiece W into the cavity 13. [

Next, a comparative example of the present invention will be described with reference to Figs. 21 to 35. Fig. The taping apparatus 101 has a circular transport table 2 horizontally installed on the table base 1. [ The carrying table 2 has a plurality of work receiving holes 3 that are opened toward the outer periphery of the carrying table 2. The work receiving holes 3 accommodate workpieces W having a rectangular parallelepiped shape individually, (In the direction of the arrow A) in the clockwise direction around the rotating shaft 4 as shown in Fig. So that the work W in the work receiving hole 3 does not protrude to the outside of the conveyance table 2 due to the centrifugal force during the intermittent rotation except for the vicinity of the separation / (2). The work W is fed from a part feeder (not shown), transferred to the linear feeder 5, and conveyed in a line to the conveying table 2 by vibration. The end portion of the linear feeder 5 faces the opening of the work receiving hole 3 of the transport table 2 and the work W is individually housed in the work receiving hole 3 by the separate feeding portion 6 . The work W received in the work receiving hole 3 is conveyed by the intermittent rotation of the conveying table 2. When the first inspection is performed when the work W arrives at the first inspection section 7, The work W reaches the first discharge portion 8 by intermittent rotation and is discharged.

The workpiece W determined to be good in the first inspection section 7 passes through the first discharge section 8 as it is and reaches the second inspection section 9. Therefore, the second inspection is carried out, and the work W judged as defective by the inspection result reaches the second discharge portion 10 by the intermittent rotation, and is discharged therefrom. The workpiece W determined to be good in the second inspection section 9 passes through the second discharge section 10 as it is and reaches the insertion section 111A. The work W housed in the work receiving hole 3 is individually inserted into the cavity 13 provided on the carrier tape 12 located below the transport table 2 at the insertion portion 111A. In the insertion portion 111A, the lower side of the work receiving hole 3 is open. Therefore, in the place where the work receiving hole 3 other than the insertion portion 111A passes, the table base 1 is positioned below the transport table 2 to prevent the work W from dropping, The separator 14 provided along the longitudinal direction of the carrier tape 12 is positioned below the transport table 2 so that the fall of the work W can be prevented . The separator 14 also serves to prevent the carrier tape 12 from splashing in the vicinity of the insertion portion 111A, in addition to preventing the workpiece from dropping. The carrier tape 12 in which the workpiece W is housed in the cavity 13 is intermittently transported in the direction of the arrow B by a driving mechanism not shown in the drawing and is transported to the upper surface of the carrier tape 12 by a tape attaching mechanism The tape is pasted and the cavity 13 is clogged.

The action in this comparative example is shown in Figs. 22 to 30, which are perspective views seen from the arrow X of the insertion portion 111A in Fig. 22, the carrying table 2 accommodates a workpiece W having a rectangular parallelepiped shape in the work receiving hole 3 and intermittently rotates in the direction of the arrow A1 (corresponding to the arrow A in Fig. 21). The upper portion of the transport table 2 is opened in the insertion portion 111A and the work insertion mechanism 111 is provided in the insertion portion 111A. The work inserting mechanism 111 has a suction nozzle 15 that ascends and descends by a driving source (not shown). At the lower end of the suction nozzle 15, an adsorption port 15c for adsorbing the workpiece W is opened, connected to a vacuum source (not shown) and vacuum suction is performed in the direction of arrow C, . In Fig. 22, the nozzle 15 is stopped at the upper limit position 15a where the lower end thereof is slightly above the upper surface of the transport table 2.

A separator 14 is provided between the carrier tape 12 and the transfer table 2 in the insertion portion 111A and the lower portion of the work receiving hole 3 is closed. The separator 14 is not provided and the lower portion of the work receiving hole 3 is opened and the cavity 13 of the carrier tape 12 is stopped immediately below the work receiving hole 3. 23, when the work receiving hole 3 reaches the position directly below the nozzle 15 and the carrying table 2 is stopped, the work W in the work receiving hole 3 is moved to the lower end of the suction nozzle 15 And is adsorbed. Next, as shown in Fig. 24, the adsorption nozzle 15 descends in the direction of arrow D while adsorbing the work W. 25, the adsorption nozzle 15 is stopped at the lower limit position 15b where the lower end portion is between the lower surface of the separator 14 and the upper surface of the carrier tape 12, Is inserted into the cavity (13) in a state of being adsorbed to the cavity (15). 26, the carrier tape 12 is intermittently transported in the direction of the arrow B and the workpiece W adsorbed at the lower end of the suction nozzle 15 is transported to the carrier 13 of the cavity 13 of the carrier tape 12 And comes in contact with the wall surface 13a on the side opposite to the conveying direction of the tape 12. 27, the workpiece W is separated from the nozzle 15 by friction with the movement of the carrier tape 12, falls down, and is accommodated in the cavity 13, as shown in FIG. Thereafter, as shown in Fig. 28, the adsorption nozzle 15 rises in the direction of the arrow E and reaches the upper limit position (Fig. 28) where the lower end thereof is slightly higher than the upper surface of the transport table 2 15a. At this time, the cavity 13 into which the next work W is inserted reaches the position directly under the suction nozzle 15, and the carrier tape 12 stops. Then, as shown in Fig. 30, the transport table 2 starts intermittent rotation in the direction of the arrow A1, and the next workpiece W is transported toward the insertion portion 111A, This is repeated.

Here, in the comparative example, when the workpiece is inserted into the cavity 13 of the carrier tape 12, the following problems arise. The first problem is that when the work W is rubbed from the suction nozzle 15 and falls off when the work W is stopped at a position higher than the lower limit position 15b at which the suction nozzle 15 should be originally stopped due to an adjustment failure or the like, The side of the carrier tape 12 in the carrying direction is heard slightly upward. At this time, the work W is conveyed while being in contact with the lower surface of the separator 14, whereby a scratch occurs on the work W. This shape is shown in Figs. 31 to 35 as an enlarged view of the vicinity of the cavity 13 of the carrier tape 12. Fig.

In Fig. 31, the adsorption nozzle 15 adsorbing the workpiece W is stopped at the lower limit position 15b. The stop position is higher than the position where the stop should be originally stopped due to, for example, a poor adjustment of the stop position accuracy of the suction nozzle 15. [ Here, the angle? Formed by the wall surface 13a and the bottom surface 13b of the cavity 13 of the carrier tape 12 is slightly larger than 90 degrees because the cavity 13 is formed by press working many. As described above, when the lower limit position 15b of the suction nozzle 15 is higher than the original position and the angle? Is slightly larger than 90 degrees, intermittent transportation of the carrier tape 12 is started, One side of the work W contacts the wall surface 13a of the cavity 13 at the position P as shown in Fig. 33, one side of the work W moves along the wall surface 13a so that the traveling direction side of the carrier tape 12 of the work W is moved upward in the cavity 13 And it tilts. At this time, the work W is adsorbed on the adsorption nozzle 15 and moves, and one side of the work W on the upper side of the work W is separated from the gap between the adsorption nozzle 15 and the separator 14, (Gap), and comes into contact with the separator 14 at the position Q as shown in Fig.

33, there is a gap indicated by N between the tip of the suction nozzle 15 and the upper surface of the work W, and the suction force of the suction nozzle 15 . However, since the length of one side of a chip-type electronic component in recent years is often about 1 mm and the length of N at that time is about 50 m, the drop of the attraction force is small and the work W falls off the suction nozzle There is no work. 34, one side of the work W contacting the separator 14 at the position Q moves while frictionally rubbing the lower surface of the separator 14, and when the carrier tape 12 is intermittently conveyed in this state, 35 cause a chattering of the workpiece W until the suction force of the suction nozzle 15 disappears and the workpiece W drops down and is accommodated in the cavity 13. [

As a countermeasure for preventing this, it is conceivable that the gap shown by M is made very small. However, in order to smoothly lift and lower the suction nozzle 15, a certain gap is required in this portion, and in the case of an insertion portion for handling a chip-type electronic component having a side length of about 1 mm as described above, Is about 20 to 30 mu m, it is very difficult to reduce the gap therebetween.

As another countermeasure, it is conceivable that the stop position of the lower limit position 15b of the suction nozzle 15 is controlled with high accuracy so that the work W does not come into contact with the separator 14 even if the work W is tilted. 31, the gap between the lower surface of the separator 14 shown by L and the upper surface of the carrier tape 12 is 20 (the distance between the lower surface of the separator 14 and the upper surface of the carrier tape 12 is 20 Mu] m, it is very difficult to control the lower limit position 15b of the suction nozzle 15 with high precision within this gap.

As described above, when the carrier tape 12 is transported while the workpiece W is in contact with the separator 14, scratches are generated on the workpiece W, but depending on the shape of the contact with the separator 14 The work W may be caught by the separator 14 and the conveyance of the carrier tape 12 may be stopped. In this case, it is necessary to temporarily stop the apparatus and manually remove the inclined work, and the operation rate of the apparatus is lowered.

The second problem in the comparative example is a case where it is difficult to increase the operation speed of the workpiece insertion mechanism 111. In the comparative example, as described above, the nozzle 15 to which the work W is adsorbed is lowered, and after the adsorption nozzle 15 reaches the lower limit position 15b, the carrier tape 12 is transported to the adsorption nozzle 15 And the adsorption nozzle 15 is then lifted up. Since a series of these operations are performed in series, there is a limit in speeding up the operation of the workpiece insertion mechanism 111.

On the other hand, according to the present invention, as described above, the work W stored in the work receiving hole 3 of the transfer table 2 can be easily and surely transferred to the carrier tape 2 12 into the cavity 13 of the housing. It is also possible to eject the workpiece W from the cavity 13 and insert the workpiece W into the cavity 13 even if the workpiece W is not correctly inserted into the cavity 13. [

1: Table base
2: Return table
3: Work receiving hole
4: center axis
5: Linear feeder
6:
7:
8:
9:
10:
11: Workpiece insertion mechanism
11A:
11a: workpiece insertion mechanism body
12: Carrier tape
13: Cavity
14: Separator
15: Adsorption nozzle
15a: Upper limit position
15b: Lower limit position
15c:
16: magnet
17: Work sensor
17a: Light emitting element group
17b: light receiving element group
18: Suction discharge nozzle
100: taping device
100a:

Claims

A workpiece carrying device having a workpiece receiving hole provided so as to penetrate the workpiece carrying device and a carrier tape provided below the workpiece carrying device and located below the workpiece carrying device and having a cavity, In a workpiece insertion mechanism for inserting into a cavity of a carrier tape,
A suction nozzle which is provided movably in the vertical direction between the upper limit position and the lower limit position and has an air suction function for suctioning a work in a work receiving hole and an air blowing function for spraying a work,
A magnet provided below the carrier tape for sucking the work stored in the cavity,
The suction nozzle is controlled by the control unit to suck the work in the work receiving hole when it is at the upper limit position and then drop to the lower limit position to inject the work into the cavity by air,
A work sensor for detecting a work to be inserted into the cavity from the work receiving hole of the work transfer device is provided in the vicinity of the cavity of the carrier tape, and the work sensor is disposed below the lower-
The suction nozzle is horizontally movable. A suction discharge nozzle for sucking the work in the cavity through the work receiving hole and discharging the work in the cavity is provided in the vicinity of the suction nozzle so as to be horizontally movable.
When the workpiece is not properly inserted in the cavity, the control unit moves the suction nozzle in the horizontal direction from above (above) the cavity and the work receiving hole, and moves the suction and discharge nozzle to the cavity and work storage And the workpiece in the cavity is discharged by the suction discharge nozzle.

delete

The method according to claim 1,
The work sensor has a light emitting portion and a light receiving portion. When the light receiving portion receives light, it turns on, and when the light receiving portion does not receive light, the work sensor turns off, and the control portion shifts from ON to OFF based on a signal from the light receiving portion , And when it is made to go ON, it is judged that the workpiece is correctly inserted in the cavity.

A work transporting device having a work receiving hole provided so as to penetrate and a work in a work receiving hole of the work transporting device at a connection portion between the carrier tape having a cavity and located below the work transporting device, A method for inserting a workpiece to be inserted,
A step of adsorbing a work in a work receiving hole by an adsorption nozzle at an upper limit position,
Wherein the suction nozzle drops to a lower limit position, the work is ejected by air to be inserted into the cavity and the work in the cavity is sucked by the magnet,
A step of detecting whether or not a workpiece is properly inserted in the cavity by a work sensor disposed below the lower position of the suction nozzle,
When it is detected by the work sensor that the workpiece is not properly inserted into the cavity, the suction nozzle is moved upward in the horizontal direction from above the cavity and workpiece receiving hole, and the suction discharge nozzle is brought to above the cavity and workpiece receiving hole And discharging the work in the cavity by the suction and discharge nozzle.