KR20100115305A - Work conveying apparatus and work conveying method - Google Patents

Abstract

PURPOSE: A work convey device and a work transfer method is provided to return work by emitting the work into a work accepting hole and to prevent damage to a work. CONSTITUTION: A work convey device comprises a carrier(3), a pole determining part, an converting track(7) and a sending unit. A plurality of work receiving holes(4a) accepting a work(W) with polarity is formed on a carrier. The pole determining part judges the forward reverse of polarity on the work within the work receiving hole of the carrier. The converting track comprises an entrance(8a) and an exit. The converting track comprises a converting track(8) which receives and turns over a work.

Description

Work conveying apparatus and work conveying method {WORK CONVEYING APPARATUS AND WORK CONVEYING METHOD}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work conveying apparatus and a work conveying method for conveying a work such as a chip-shaped electronic component having a polarity. In particular, the polarity of the work is determined during conveyance, and the direction of the work determined to be reverse in polarity is determined. A work conveying apparatus and a work conveying method which can be reversed easily and reliably.

In a device for measuring characteristics of a chip-shaped electronic component (hereinafter referred to as a work) having polarities such as a capacitor and a diode, and a taping device for storing these works in a carrier tape, it is sometimes necessary to match the polarity of the work. For this reason, these apparatuses are equipped with the polarity inversion mechanism which suits polarity at the time of conveying a workpiece | work.

Conventionally, the workpiece conveyance apparatus which has a workpiece | work polarity inversion mechanism is known (for example, refer patent document 1). 9 shows a work conveying apparatus having such a conventional work polarity inversion mechanism. As shown in FIG. 9, the outer periphery part of the conveyance table 22 which intermittently rotates the workpiece | work W conveyed in 1 row by the feeder 21 in the counterclockwise direction (arrow F direction). It is individually accommodated in the workpiece accommodation hole 23 arrange | positioned at the part. And the polarity of the workpiece | work W is determined by the polarity determination part which is not shown in figure, and the workpiece | work determined with the reverse polarity is located in the position 23a which opposes the inlet of the inversion track 25 formed in the inversion part 24. When the workpiece receiving hole 23 reaches, it is sent out in the inversion track 25 by the ejection means which is not shown in the vicinity of the position 23a. After detecting that the workpiece | work W1 was sent in the inversion track 25 by the sensor not shown in the inversion track 25, the timing of a branch and the rotation timing of the conveyance table 22 are adjusted. Thereby, when the workpiece accommodation hole 23 in which the said workpiece W1 was accommodated reached the position 23b which opposes the exit of the inversion track 25, the workpiece W1 is the said workpiece | work in the state which reversed the polarity. It is accommodated in the storage hole 23 again (arrow H of FIG. 9).

By the way, in the conventional workpiece conveyance apparatus shown in FIG. 9, the timing with which the workpiece | work W1 in the inversion track 25 reaches | attains an exit, and the workpiece storage hole 23 which the workpiece | work W1 was accommodated in the inversion track ( It is necessary to match the timing of reaching the position 23b opposite to the exit 25. In this case, it is necessary to detect the speed of the workpiece W1 passing through the inversion track 25 and compare it with the rotational speed of the conveying table 22, and control the rotational speed of the conveying table 22 to adjust the timing. However, timing in this way leads to complexity of the device and raises the cost.

Although the method of optimizing the speed of the workpiece | work W1 by adjusting the branching force of the blowing means which sends the workpiece | work W1 in the inversion track 25 is considered, this method is also not easy. That is, when the branching force is large, the speed of the work W1 becomes large, and it is earlier than the work receiving hole 23 in which the work W1 is stored reaches the position 23b opposite to the exit of the inversion track 25. The work W1 reaches the exit of the inversion track 25. At this time, the workpiece storage hole 23 and the other workpiece storage hole 23 in which the workpiece W1 has been stored are at a position 23b opposite to the outlet of the inversion track 25, and this workpiece storage hole 23 If another work W2 is housed in Fig. 9), as shown in Fig. 9, the work W1 collides with the work W2, and each work is damaged. In addition, if the outer peripheral part of the conveyance table 22 exists in this position 23b, the workpiece | work W1 will collide with the outer peripheral part of the conveyance table 22, and these corner parts and the workpiece | work W1 will be moved. It may damage it.

On the other hand, when the said branching force is small, the speed of the workpiece | work W1 will become small, and the workpiece | work W1 will stop in the inversion track 25, and will not reach the exit. In this case, even when the branching force is large or small, since the work W1 not accommodated in the work storage hole remains in the inversion track 25, it is necessary to stop the device and manually remove the work. It is causing a decrease in utilization rate.

Japanese Patent Application Laid-Open No. 10-139136

This invention is made | formed in view of this point, The workpiece conveyance apparatus which can accommodate the workpiece | work which reversed polarity certainly in the workpiece storage hole which the said workpiece was accommodated in, and does not damage a workpiece | work, and is simple in structure. And a work conveying method.

The present invention provides a plurality of workpiece storage holes for storing a workpiece having polarity, a carrier for conveying the workpiece, a polarity determination unit for determining the correct range of polarity with respect to the workpiece in the workpiece storage hole, A circular arc-shaped inverted track having an inlet and an outlet, a workpiece dispensing means for discharging the work in the work receiving hole into the reversing track, and a work disbursed by the workpiece dispensing means to the reverse track It is a workpiece conveyance apparatus provided with the workpiece | work deceleration means and the workpiece | work ejection means which ejects and returns the workpiece | work decelerated by the workpiece | work deceleration means in an inversion track into a workpiece storage hole.

In the present invention, the inversion track is connected to the gas reservoir through an upstream gas passage on the upstream side of the inversion track and a downstream gas passage on the downstream side of the inversion track, and the gas reservoir is switchably connected to a vacuum source and a gas supply source. When the gas reservoir is connected to the vacuum generating source, the downstream gas passage functions as a work deceleration means, and when the gas reservoir is connected to the gas supply source, the downstream gas passage functions as a work blowing means. Device.

This invention is the workpiece conveyance apparatus characterized by the atmospheric opening being provided downstream from the gas path downstream of a reverse track.

This invention is a workpiece conveyance apparatus provided with the workpiece delivery means comprised by the compressed gas blowing means which is provided in the side of a conveyance body, and sprays the workpiece | work in a workpiece storage hole toward the entrance of a reverse track.

This invention is the workpiece conveyance apparatus characterized by the inlet side sensor which detects that a workpiece | work was sent out from the workpiece storage hole to the inlet of a reverse track in the inlet vicinity of a reverse track.

This invention is the workpiece conveyance apparatus characterized by the exit side sensor which detects that a workpiece was ejected from the exit of the inversion track to the workpiece storage hole from the exit of the inversion track.

The present invention provides a compressed gas return means for returning a workpiece in the workpiece storage hole to the outlet of the reverse track when the workpiece is not normally stored in the workpiece storage hole at a portion facing the outlet of the reverse track on the carrier side. It is provided, the workpiece conveyance apparatus characterized by the above-mentioned.

The present invention is a step of conveying by a carrier having a plurality of work receiving holes for storing the work having a polarity, the step of determining the region of the polarity by the polarity determination unit for the work in the work receiving hole, A step of discharging the workpiece in the workpiece receiving hole of the carrier having the polarity determined by the polarity determining unit to the inlet of the arc-shaped reversed track provided against the carrier by the workpiece dispensing means, and from the inlet of the reversed track. And a step of decelerating the workpiece sent to the reversal track in the reversal track by the work deceleration means, and a step of ejecting and returning the work decelerated in the reversal track into the work receiving hole of the carrier by the work ejection means. It is a workpiece conveyance method characterized by the above-mentioned.

In the present invention, the inversion track is connected to the gas reservoir through an upstream gas passage on the upstream side of the inversion track and a downstream gas passage on the downstream side of the inversion track, and the gas reservoir is switchably connected to a vacuum source and a gas supply source. When the gas reservoir is connected to the vacuum generating source, the downstream gas passage functions as a work deceleration means, and when the gas reservoir is connected to the gas supply source, the downstream gas passage functions as a work blowing means. It is a way.

This invention is the workpiece conveyance method characterized by the atmospheric opening being provided in the downstream side rather than the gas path downstream of an inversion track.

This invention is a workpiece conveyance method provided with the workpiece delivery means comprised by the compressed gas blowing means which is provided in the side of a conveyance body, and blows the workpiece | work in a workpiece accommodation hole toward the entrance of a reverse track.

This invention is the workpiece | work conveying method characterized by the inlet side sensor which detects that a workpiece | work is sent out from the workpiece storage hole to the inlet of a reverse track in the inlet vicinity of a reverse track.

This invention is the workpiece conveyance method characterized by the exit side sensor which detects that the workpiece was ejected from the exit of the inversion track to the workpiece storage hole from the exit of the inversion track.

The present invention provides a compressed gas return means for returning a workpiece in the workpiece storage hole to the outlet of the reverse track when the workpiece is not normally accommodated in the workpiece storage hole at a portion facing the outlet of the reverse track on the carrier side. It is provided, the workpiece conveyance method characterized by the above-mentioned.

As mentioned above, according to this invention, according to this invention, the workpiece | work determined by the polarity determination part to be reversed is sent out in the inversion track by the workpiece delivery means from the workpiece accommodation hole of a conveyance body. The workpiece in the reverse track is then decelerated or stopped by the workpiece deceleration means, and then ejected into the workpiece storage hole by the workpiece ejection means and returned. In this case, by operating the workpiece ejection means in accordance with the conveyance speed of the carrier, the workpiece in the reverse track can be ejected easily and reliably into the workpiece storage hole and returned, without damaging the workpiece or the carrier.

BRIEF DESCRIPTION OF THE DRAWINGS The enlarged plan view which shows one Embodiment of the workpiece conveyance apparatus by this invention.
FIG. 2 is a cross-sectional view taken along AA in FIG. 1 showing a detail of a workpiece conveyance apparatus. FIG.
The front view which shows the conveyance table of a workpiece conveyance apparatus.
4 is a sectional view taken along line DD in FIG. 3 showing a conveyance table of the workpiece conveyance apparatus.
FIG. 5 is a cross-sectional view taken along the line C in FIG. 1 showing an air reservoir of the work conveying device. FIG.
FIG. 6 is a cross-sectional view taken along line BB in FIG. 1 showing an inversion track of the workpiece conveyance device. FIG.
(A), (b), (c) is a figure which shows the action | action of the workpiece conveyance apparatus by this invention.
8 is a schematic view of the entire work conveying device according to the present invention;
9 is a plan view illustrating a conventional work conveying device.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described with reference to drawings. 1-8 is a figure which shows one Embodiment of the workpiece conveyance apparatus and the workpiece conveyance method by this invention.

As shown in FIG. 1 and FIG. 8, the workpiece conveyance apparatus 30 is equipped with the several workpiece accommodation hole 4, 4a, 4b which accommodates the workpiece | work W which has polarity in the outer periphery, and arrange | positioned in the vertical direction. Polarity determination part 6 which determines the positive / negative range of a polarity with respect to the conveyance table (carrier body) 3, and the workpiece | work W in the workpiece storage holes 4, 4a, and 4b of the conveyance table 3. And an inverting portion 7 provided corresponding to the conveying table 3 and having an inverting track 8 including an inlet 8a and an outlet 8b and receiving and inverting the work W. have.

Moreover, the conveyance table 3 is hold | maintained rotatably around the center axis | shaft 2 in the table base 1 arrange | positioned in the vertical direction. In addition, it is also conceivable to use a band-shaped conveying belt as a conveying body instead of the conveying table 3.

As mentioned above, the work accommodation holes 4, 4a, 4b which accommodate a workpiece are provided in the outer peripheral part of the conveyance table 3 at equal intervals through the conveyance table 3 in the thickness direction. The shape of the workpiece | work W is a rectangular parallelepiped and has polarity. In the figure, black marking is made to one end of the longitudinal direction of the workpiece | work W clearly, and the polarity is shown by this. In the actual work W, these markings are not provided, and polarity may be displayed by other methods.

In FIG. 8, the workpiece W supplied from the feeder 5 is individually accommodated in the workpiece storage hole 4 by aligning the longitudinal direction with the thickness direction of the conveying table 3, and the conveying table 3 is Intermittently rotates clockwise around the center axis | shaft 2 by action of the drive part which is not shown in figure (arrow G of FIG. 8). And the workpiece | work W accommodated in the workpiece accommodation holes 4, 4a, and 4b reaches the inversion part 7 after determining the polarity by the polarity determination part 6.

The top view (magnified view seen from the arrow X of FIG. 8) of the inversion part 7 of the workpiece conveyance apparatus 30 is shown in FIG. In addition, A-A sectional drawing in FIG. 1 is shown in FIG. 2, B-B sectional drawing in FIG. 1 is shown in FIG. 6, and C sectional drawing in FIG. 1 is shown in FIG.

As shown in FIG. 1 and FIG. 2, the inverting portion 7 has a block 9 and a cover 10 covering the block 9, and the inverting portion 7 has a surface of the conveying table 3. It is fixedly spaced at a slight interval.

The above-mentioned inversion track 8 penetrates circularly in the block 9, and the inlet 8a and the outlet 8b of the inversion track 8 follow the rotation path | route of the conveyance table 3, and a workpiece storage hole. 1 pitch apart from (4). In the vicinity of the inlet 8a of the inversion track 8, the inlet side sensor S1 which detects that the workpiece | work W passed the inlet 8a of the inversion track 8 is provided. Similarly, the exit side sensor S2 which detects that the workpiece | pass passed the exit 8b of the inversion track is provided in the vicinity of the exit 8b of the inversion track.

In FIG. 1, the work storage hole 4a stops at a position opposite to the inlet 8a of the reverse track 8, and the work storage hole 4b is positioned at a position opposite to the outlet 8b of the reverse track 8. This stationary state is illustrated. Four air grooves (gas passages) 16a, 16b, 16c, 16d are connected to the inversion track 8 in the block 9, and the air grooves 16a, 16b, 16c, 16d are connected to the inversion track 8. It communicates with the air storage (gas storage) 15 formed below the substantially central part of the circular arc. In this case, the upstream air grooves 16a and 16b are the upstream air grooves, and the downstream air grooves 16c and 16d are the downstream air grooves.

As shown in FIG. 5, the air reservoir 15 communicates with the pipe connection port 18 through the communication hole 17, and the pipe connection port 18 is connected to the switching valve 31. Then, if necessary, the switching valve 31 is operated to switch the air reservoir 15 to be connected to the vacuum generating source 32 and the air supply source (gas supply source) 33. The air flow of the pipe connection port 18 is in the direction of arrow S in FIG. 5 when connected to the vacuum generator 32, and in the direction of arrow T in FIG. 5 when connected to the air supply source 33.

In addition, as shown in FIG. 1, the angle formed by the connection place between the air grooves 16a, 16b, 16c, and 16d and the inversion track 8 is determined from the air grooves 15a, 16b, 16c, When compressed air is supplied to the inversion track 8 via 16d), the compressed air is directed to the outlet 8b of the inversion track as it is.

In this way, by connecting the air grooves 16a, 16b, 16c, 16d and the inversion track 8, when the air reservoir 15 is connected to the vacuum generating source 32 by the action of the switching valve 31, the inversion is reversed. When the vacuum suction is performed from the outlet 8b side of the track toward the inlet 8a side, and the air reservoir 15 is connected to the air supply source 33 by the action of the switching valve 31, the inlet of the reverse track ( Air blowing is performed toward the outlet 8b side from the 8a) side. Here, when the workpiece | work W does not exist in the inversion track 8, the air reservoir 15 is connected to the vacuum generating source 32 by the action of the switching valve 31. As shown in FIG.

In addition, the inversion track 8 is provided on the cover 10 on the downstream side, i.e., closer to the outlet 8b of the inversion track, than the connection position between the air grooves 16a, 16b, 16c, 16d and the inversion track 8. The air opening hole 19 which is located at both sides of the inversion track 8 and communicates with the air is opened. This atmospheric opening hole 19 communicates with the inversion track 8 by the atmospheric opening groove 20 formed in the block 9.

In addition, in FIG. 1, each member 5 installed in the block 9 starting with the inversion track 8 is marked so as to be visible through the cover 10, but this is done by the transparent material of the cover 10. If it is. In practicing the present invention, the cover 10 need not be particularly transparent.

Next, the perspective view (perspective view seen from the arrow Y in FIG. 1) which looked at the conveyance table 3 from the opposite side of the table base 1 near the inversion part 7 is shown in FIG. A cross section is shown in FIG. In FIG. 3, although the inversion part 7 is located in front of the paper surface rather than the conveyance table 3, it is not shown in figure.

3 and 4, the annular negative pressure groove 11 is formed on the side of the table base 1 on the conveying table 3, and is connected to a vacuum generating source (not shown). It is. And the side facing the table base 1 of the conveyance table 3 has the counterbore hole 12 and the suction hole 13 which communicate with the annular negative-pressure groove 11 from the workpiece storage hole 4 It is provided and it is possible to hold | maintain vacuum suction of the workpiece | work W in the workpiece | work accommodation hole 4. Moreover, in the table base 1, the air blowing hole (compressed gas blowing means) 14a toward the inlet 8a of the inversion track at the position corresponding to the workpiece accommodation hole 4a opposite the inlet 8a of the inversion track. ) Is provided, and this air blowing hole 14a is connected to the air supply source 14c. Moreover, in the table base 1, the air blowing hole (compressed gas return means) 14b toward the exit 8b of the reversing track at the position corresponding to the work receiving hole 4b opposite the outlet 8b of the reversing track. ) Is provided, and this air blowing hole 14b is connected to the air supply source 14c. Here, the workpiece storage holes 4a and 4b show the same workpiece storage holes in both, and when the workpiece storage hole comes in a position opposite to the inlet 8a, the workpiece storage hole 4a becomes the outlet 8b. When it comes to the position opposite to), it becomes the workpiece accommodation hole 4b. In addition, each said member is drive-controlled by the control part 30a.

Next, the effect | action of this embodiment which consists of such a structure is demonstrated. First, the workpiece | work W accommodated in the workpiece storage hole 4, 4a, 4b of the conveyance table 3 is conveyed with the rotation of the conveyance table 3, and the polarity determination part 6 carries out the workpiece | work W Is determined.

Next, the conveyance table 3 rotates and the vicinity of the inlet 8a of the inversion track in the state where the workpiece | work W1 determined by the polarity determination part 6 to be reversed in polarity was accommodated in the workpiece accommodation hole 4a. Is reached, and the conveyance table 3 stops. Next, the workpiece W1 in the workpiece storage hole 4a is sent to the inversion track 8 and inverted by the inversion track 8, and is stored in the work storage hole 4b corresponding to the outlet 8b.

That is, the polarity is determined by the polarity determination part 6 of the workpiece | work W accommodated in the workpiece storage hole 4a of the conveyance table 3. At this time, when the workpiece | work W1 determined to be reverse in polarity reaches the entrance 8a of the inversion track, the conveyance table 3 will stop and based on the determination result of the polarity determination part 6, the control part ( Air is blown out from the air blowing hole 14a by the instruction of 30a (arrow P of FIG. 4), and the workpiece | work W1 is sent to the inversion track 8. On the other hand, about the workpiece | work with a positive polarity, even if it reaches the inlet 8a vicinity of the inversion track, it does not blow out air from the air blowing hole 14a, but conveys it in the state accommodated in the workpiece storage hole 4a as it is. do.

The shape immediately after the workpiece | work W1 of reverse polarity is sent to the inversion track 8 is shown to FIG. 7 (a). When the workpiece | work W1 is sent to the inversion track 8 by the air blowing from the air blowing hole 14a, it is known that the workpiece W1 passed through the inlet 8a of the inversion track 8 (inlet-side sensor ( S1) detects it.

In the meantime, the air reservoir 15 is connected to the vacuum generating source 32, and vacuum suction is performed toward the inlet 8a side from the outlet 8b side of the inversion track 8 (Fig. 7 (a)). Arrow J). At this time, the air flow is introduced into the air grooves 16a, 16b, 16c, and 16d from the inlet 8a of the inversion track 8, and from the air opening hole 19 from the air opening hole 19 by vacuum suction. Two types of air streams, the air streams flowing into 16b, 16C, and 16d). Here, in order to reliably stop the workpiece W1 sent to the inversion track 8 in the inversion track 8, the air flow from the inlet 8a of the inversion track 8 is regarded as the two types of air flows. The opening area of the atmospheric opening hole 19 and the cross-sectional area of the atmospheric opening groove 20 are made larger than the cross-sectional area of the inversion track 8 so that the air flow from the atmospheric opening hole 19 becomes larger.

In FIG. 7A, since the workpiece is accommodated in the work receiving hole 4b facing the outlet 8b of the inversion track 8, the air flow in the inversion track 8 is the above two types. When the workpiece is not stored in the workpiece storage hole 4b, the workpiece storage hole 4b is released from the atmospheric opening hole 19 by the vacuum suction acting on the suction hole 13 in the workpiece storage hole 4b. Another air flow flows toward the air. In either case, the air flow in the inversion track 8 is divided by the atmospheric opening hole 19. As described above, due to the air flow segmented by the atmospheric opening hole 19, the workpiece W1 in the inversion track 8 does not reach the outlet 8b and decelerates, and the air groove 16a on the uppermost side is provided. It stops at any position between the place which connects to this inversion track 8, and the atmospheric opening hole 19. FIG. This state is shown in FIG.

When the workpiece | work W1 stops in the inversion track 8, the air blowing from the air blowing hole 14a is stopped, the air reservoir 15 is connected to the vacuum generating source 32, and the exit of the inversion track ( Vacuum suction is performed from the 8b) side toward the inlet 8a side (arrow J in FIG. 7B).

In the meantime, in the polarity determination part 6, the inversion part 7, and the detection part, the sorting discharge part which are not shown, etc. which are provided along the rotation path of the conveyance table 3, respectively, predetermined | prescribed during the stop of the conveyance table 3, respectively. The process of is performed. Execution of the process which requires the most time among them is completed, and the conveyance table 3 will begin rotation again (arrow L of FIG. 7 (b)). And the workpiece accommodation hole 4a in which the workpiece | work W1 was accommodated moves toward the position which opposes the exit 8b of the inversion track.

Next, the workpiece storage hole 4a in which the workpiece W1 has been stored moves by one pitch of the workpiece storage hole, reaches a position opposite to the outlet 8b of the reverse track, and becomes the workpiece storage hole 4b. The conveyance table 3 stops (FIG. 7C). At this time, a stop signal indicating that the conveyance table 3 has stopped is transmitted to the control unit 30a, and the switching valve 31 operates by the command from the control unit 30a to operate the air reservoir 15 in the air supply source ( 33). Then, the four air grooves 16a, 16b, 16c, and 16d cause air ejection from the inlet 8a side of the inversion track 8 toward the outlet 8b side (arrow K in Fig. 7C). ), The ejected air is discharged outward from the air opening hole 19. Thereby, the workpiece | work W1 stopped in the inversion track 8 moves toward the exit 8b of the inversion track 8, and reaches the position of the atmospheric opening hole 19. FIG. The air blown out from the air grooves 16a, 16b, 16c, and 16d is discharged from the atmospheric opening hole 19, but part of the air is directed toward the outlet 8b of the inversion track 8, so that the work W1 is in the atmosphere. It passes through the position of the opening hole 19, and reaches | attains the workpiece storage hole 4b which opposes the exit 8b of the inversion track 8. As shown in FIG. And the workpiece | work W1 is accommodated in the workpiece storage hole 4b in the state which reversed the polarity by the vacuum suction by the suction hole 13 in the workpiece storage hole 4b. When the exit-side sensor S2 detects that the workpiece W1 has passed through the exit of the workpiece storage hole 4b, the conveyance table 3 becomes rotatable again, and the conveyance table 3 resumes rotation. . At this time, by the instruction from the control unit 30a, the switching valve 31 is operated so that the air reservoir 15 is connected to the vacuum generating source 32, and the inlet 8a is provided from the outlet 8b side of the inversion track 8. Vacuum suction is performed toward) side, and the next workpiece | work W is sent to the inversion track 8.

In addition, when the workpiece | work W1 is not stored correctly in the workpiece storage hole 4b, it is detected by the exit side sensor S2 that the workpiece | work W1 is not correctly accommodated in the workpiece storage hole 4b. . In this case, air is blown out from the air jet port 14b provided in the position corresponding to the workpiece storage hole 4b in the table base 1, and the workpiece | work W1 is returned to the inversion track 8 once. Next, by air blowing toward the outlet 8b side of the inversion track 8, the work W1 is stored in the work receiving hole 4b again.

Thus, according to this embodiment, after stopping the conveyance table 3, the workpiece | work W1 judged by the polarity determination part 6 to be reversed in polarity is sent out from the workpiece storing hole 4a in the inversion track 8. After that, the work W1 can be decelerated in the inversion track 8 and stopped. Thereafter, the conveyance table 3 is rotated by one pitch of the work receiving hole and stopped. Next, the workpiece | work W1 in the inversion track 8 can be returned to the workpiece storage hole 4b of the conveyance table 3 by compressed air. For this reason, since the movement timing of the conveyance table 3 and the timing which return the workpiece | work W1 to the workpiece accommodating hole 4b of the conveyance table 3 can be easily matched, the workpiece | work W1 is the conveyance table 3 ), The work W1 and the conveyance table 3 are not damaged.

In addition, in the said embodiment, the workpiece | work W1 sent out in the inversion track 8 is stopped in the inversion track 8, and the workpiece accommodation hole 4b which should accommodate the said workpiece W1 is the inversion track 8 Stop until it reaches the position opposite to the outlet 8b of), and after the workpiece storage hole 4b reaches the position opposite to the outlet 8b of the inversion track 8, the workpiece W1 is accelerated to Although it guides to the exit 8b, the rotation speed of the conveyance table 3 is large, and the position where the workpiece accommodation hole 4b which should accommodate the said workpiece W1 opposes the exit 8b of the inversion track 8. In the case where the time until reaching is short, the workpiece W1 is decelerated to a speed which does not reach a stop, and after the workpiece receiving hole 4b reaches the position facing the outlet 8b, the workpiece W1 May be accelerated and guided to the outlet 8b.

Moreover, although the example which connected four air grooves 16a, 16b, 16c, and 16d to the inversion track 8 was demonstrated, it is assured that the work W1 in the inversion track 8 is stopped and moved again. In addition, the number of air grooves is not limited to four, but can be set to an optimal number depending on the size and weight of the work W1, the rotation speed of the conveying table 3, and the like.

In addition, in this embodiment, although the case where the same air groove 16a, 16b, 16c, 16d has the function of vacuum suction and air blowing by switching the switching valve 31 was demonstrated, air groove 16a, 16b, The air grooves of any one of 16c and 16d may have a vacuum suction function, and the remaining air grooves may have an air blowing function.

In addition, although the example which sent out the workpiece | work W1 in the inversion track 8 by air blowing from the inlet 8a of the inversion track 8 was shown in FIG. 1, the inversion track 8 from the inlet 8a. You may send out the workpiece | work W1 in the inversion track 8 by air suction from the side. In addition, you may send out the workpiece | work W1 in the inversion track 8 by the combination of air suction and air blowing.

In addition, in this embodiment, although the example of the mechanism which blows off the workpiece | work W by air blowing is shown, it is not limited to air blowing but gas blowing using other gas, for example, inertness which does not affect a human body or a workpiece | work You may blow off the workpiece | work W using gas.

In addition, in this embodiment, the workpiece | work W is accommodated and conveyed in the workpiece storage hole 4 which penetrated in the thickness direction of the conveyance table 3, and the inversion track 8 is one side of the conveyance table 3, Although the case where it was installed in the above was demonstrated, the conveyance table 3 is arrange | positioned horizontally, the workpiece accommodation hole 4 is formed in the outer periphery of this conveyance table 3, and a workpiece | work ( W1) may be accommodated and conveyed, and the inversion track 8 may be provided in the outer side of the conveyance table 3 further.

Moreover, you may install the conveyance table 3 horizontally or inclined.

In addition, although the example of the conveying table 3 which rotates as a conveying body was shown, you may convey a workpiece | work using band-shaped bodies, such as an endless belt.

1: table base
2: central axis
3: return table
4, 4a, 4b: workpiece storage hole
6: polarity determination unit
7: inverting part
8: reverse track
8a: entrance of reverse track
8b: exit of reverse track
9: block
10: cover
14a, 14b: air blowing hole
15: air store
16a, 16b, 16c, 16d: air groove
19: atmospheric opening hole
30: work conveying device
31: switching valve
32: vacuum generating source
33: air source
W, W1, W2: Walk
S1: entrance side sensor
S2: outlet side sensor

Claims (14)

A plurality of workpiece storage holes for storing a workpiece having polarity, and a carrier for conveying the workpiece;
A polarity judging section for judging the region of polarity with respect to the workpiece in the workpiece storage hole;
An arc-shaped inverted track provided opposite to the carrier and having an inlet and an outlet;
Work sending means for sending out the work in the work receiving hole into the reverse track,
Work deceleration means for decelerating the work sent out by the work discharging means to the inversion track;
And a workpiece ejecting means for ejecting and returning the workpiece decelerated by the workpiece deceleration means into the workpiece storage hole in the reverse track. The method of claim 1,
The inversion track is connected to the gas reservoir through an upstream gas passage on the upstream side of the inversion track and a downstream gas passage on the downstream side of the inversion track, the gas reservoir is switchably connected to a vacuum source and a gas source,
When the gas reservoir is connected to the vacuum generating source, the downstream gas passage functions as a work deceleration means,
And when the gas reservoir is connected to the gas supply source, the downstream gas passage functions as a work blowing means. The method of claim 2,
A work opening device, wherein an atmospheric opening hole is provided on a downstream side of a reverse gas passage of a reverse track. The method of claim 1,
The workpiece conveyance means is provided on the carrier side, and consists of compressed gas ejection means which ejects the workpiece | work in a workpiece storage hole toward the entrance of a reverse track, The workpiece conveyance apparatus characterized by the above-mentioned. The method of claim 1,
An inlet-side sensor for detecting that the workpiece is fed from the workpiece storage hole to the inlet of the inversion track is provided near the inlet of the inversion track. The method of claim 1,
An exit side sensor for detecting that the workpiece is ejected from the outlet of the inversion track to the workpiece storage hole is provided near the outlet of the inversion track. The method of claim 1,
When the workpiece is not normally accommodated in the workpiece storage hole at the portion facing the outlet of the reverse track on the carrier side, the compressed gas return means for returning the workpiece in the workpiece storage hole to the outlet of the reverse track is provided. The workpiece conveyance apparatus characterized by the above-mentioned. A process of conveying by a carrier having a plurality of workpiece accommodating holes for storing a workpiece having polarity,
A step of judging the region of the polarity of the workpiece in the workpiece storage hole by the polarity determination unit;
Sending the workpiece in the workpiece storage hole of the carrier having the polarity determined by the polarity determining unit to the inlet of the arc-shaped reverse track provided to face the carrier by the workpiece dispensing means;
Decelerating the workpiece fed from the inlet of the reversal track to the reversal track in the reversal track by the work deceleration means;
And a step of ejecting and returning the workpiece decelerated in the reverse track into the workpiece accommodating hole of the carrier by the workpiece ejecting means. The method of claim 8,
The inversion track is connected to the gas reservoir through an upstream gas passage on the upstream side of the inversion track and a downstream gas passage on the downstream side of the inversion track, the gas reservoir is switchably connected to a vacuum source and a gas source,
When the gas reservoir is connected to the vacuum generating source, the downstream gas passage functions as a work deceleration means,
When the gas reservoir is connected to a gas supply source, the downstream gas passage functions as a work blowing means. The method of claim 9,
The atmospheric opening hole is provided downstream from the gas path downstream of a reverse track, The workpiece conveyance method characterized by the above-mentioned. The method of claim 8,
The workpiece conveyance means is provided on the carrier side, and consists of compressed gas ejection means which ejects the workpiece | work in a workpiece storage hole toward the inlet of a reverse track, The workpiece conveyance method characterized by the above-mentioned. The method of claim 8,
An inlet-side sensor for detecting that the workpiece is sent out from the workpiece storage hole to the inlet of the inversion track is provided near the inlet of the inversion track. The method of claim 8,
An exit side sensor for detecting that the workpiece is ejected from the exit of the reverse track to the workpiece storage hole is provided near the exit of the reverse track. The method of claim 8,
When the workpiece is not normally stored in the workpiece storage hole at the portion facing the outlet of the reverse track on the carrier side, the compressed gas return means for returning the workpiece in the workpiece storage hole to the outlet of the reverse track is provided. The workpiece conveyance method characterized by the above-mentioned.

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