JPH09169425A - Method and device for carrying work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the control of delivery of work one by one, and to lower the cost. SOLUTION: An upper auxiliary carrying means 11 and a lower main carrying means 12 are respectively provided with a pair of stoppers 26, 27. The pair of stoppers 26, 27 displace the timing of pinching of a work 13 between guide plates 15, 22 in response to the unit feeding time of one work, and intermittently stops the carrying of the work 13 on each carrying means 11, 12 so as to generate a space between the works. An elevating chute 20 provided in the downstream of the auxiliary carrying means 12 is intermittently driven in response to a constant period of the pair of stoppers 26, 27, and the work 13, which is fed from the auxiliary carrying means 12, is fed into the space between the works, which are carried by the main carrying means 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention merges articles conveyed from a plurality of sub-conveying means (hereinafter referred to as "workpieces") with the main conveying means which is a single line, or is conveyed from the main conveying means. The present invention relates to a method and apparatus for transferring a work to be distributed to a plurality of sub-transfer means.

[0002]

2. Description of the Related Art There is a work merging device for naturally merging works from a plurality of horizontally arranged sub-carriers into one main carrier. In this case, when the works are connected and conveyed, there is a risk of collision at the merging portion. Therefore, a stopper is provided at the end of each sub-conveying means, and the stoppers are provided between the works conveyed in a continuous image. The control is performed to generate one interval and to send it out. In this control, the stopper is operated between a protruding position in which the rod is brought into contact with the tip of the conveyed work to prevent passage of the work and a retracted position in which the rod is retracted to allow passage of the work.

In such a single-feeding mechanism, an inlet sensor for detecting the presence or absence of a work is required on the downstream side where the stopper is arranged in order to specify the operation timing of the stopper. When the workpiece is detected by the inlet sensor, the stopper is moved from the protruding position to the retracted position to allow the workpiece to pass. By the way, when the length of the workpiece to be conveyed along the conveying direction is constant, it is sufficient to match the operation period of the stopper with the workpiece passage time to pass the stopper, while workpieces with different lengths are mixed. In the case where the workpieces are conveyed by means of an outlet, an outlet sensor for detecting whether or not the work has passed through the stopper is required on the upstream side where the stopper is arranged. When the work is detected by the outlet sensor, the rod is moved from the retracted position to the projecting position, and the rod is brought into contact with the leading end of the succeeding work in the conveying direction to prevent the succeeding work from passing.

[0004]

However, in the merging device described above, since the sub-conveying means are arranged horizontally offset, a large installation area is required. Further, since the pair of sensors is used, the cost is increased and the software control for linking the signal obtained from the pair of sensors and the operation of the stopper becomes complicated. Moreover, when the sub-transporting means and the main transporting means, which are offset in the horizontal direction, are merged, the width of this merging portion becomes wider than that of the tributary and the main transporting means, so the work falls here and then the work at the merging portion. Frequent problems that clogged up. When such a problem occurs, the work is connected at the position of the sensor, and the exit sensor cannot detect the passage of the work. In such a case, the stopper cannot operate and
There is a drawback that it is not possible to control individual pieces.

There is also a mechanism in which two stoppers are provided so as to be displaced in the direction in which the workpieces are conveyed, and the stoppers are alternately operated to feed the workpieces one by one. It is impossible to insert a rod between workpieces with a work that does not occur, and this type cannot be used.

The present invention has been made in view of the above problems, and provides a work transfer method and device at a low cost in which the occupied area is reduced, and the structure and control of a single-piece dispensing stopper are simplified. The purpose is to

[0007]

In order to achieve the above object, in the present invention, the main transporting means and the sub transporting means, which are continuously traveling, are arranged vertically offset from each other, and the works are aligned by the respective transporting means. When transporting sequentially in the horizontal direction,
By the work stopping means provided for each of the carrying means, the works carried by the respective carrying means are intermittently stopped on the carrying means at a constant cycle so that the distance between the works on the respective carrying means is increased. The work conveyed by the sub-conveying means is intermittently driven by intermittently driving the joining means provided at the end of the sub-conveying means in correspondence with the predetermined period, and the work conveyed by the main conveying means is interleaved with each other. It is designed to be fed within the interval that occurs in the. As the work stopping means, the work is clamped between the guide plates so that a space can be surely created between the works even in the case of a work transfer form in which there is no gap in the front and back when connected. By doing so, the transport of the work on each transport means is intermittently stopped. The drive timing of each work stopping means may be shifted corresponding to the unit feed time for one work. In addition, a pressing member that elastically presses to provide a buffering action is provided so as not to damage or damage the work when pressing with the rod.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The carrying device of the present invention is shown in FIG.
The transfer device 10 joins the works 13 of the sub-transfer means 12 with the main transfer means 11 among the works 13 transferred from both the main transfer means 11 and the sub-transfer means 12.
The main transport means 11 is composed of a belt conveyor 14 and a pair of guide plates 15 provided on both edges of the belt conveyor 14,
The work 1 is driven by driving the belt conveyor 14 at a constant speed.
3 is conveyed along the horizontal direction. The sub-transport means 12 is arranged on the main transport means 11. The sub-conveying means 12 is also composed of a belt conveyor 16 having the same width as that of the main conveying means 11 and a pair of guide plates 17 provided on both edges of the belt conveyor 16, and the main conveying means 11 is conveyed by driving the belt conveyor 16 at a constant speed. The work 13 is conveyed in the same direction as the direction. These works 13 have a substantially horizontally long rectangular shape, and are conveyed in a posture in which the longitudinal direction is aligned with the conveying direction.

The end 12a of the sub-transporting means 12 is located in the middle of the main transporting means 11, and an elevating shooter 20 which is a movable line is arranged on the end 12a side. The elevating shooter 20 is provided at the end 12a of the sub-transport means 12.
The belt conveyor 1 is a work merging means for feeding the work 13 sent out from the
The sliding table 21 has the same width as that of Nos. 4 and 26, and a pair of guide plates 22 provided on both edges of the sliding table 21. The sliding table 21 is the end 1 of the sub-transporting means 12.
2a and main transport means 1 along the downstream side in the transport direction
1 has an inclined posture in which it is linearly connected to the upper surface, and the operation of the cylinder 23 causes the start end 21a to approach the end 12a of the sub-transport means 12 and the end 21b to approach the main transport means 11, respectively. And a starting point 2 at which the work 13 of the sub-transporting means 12 joins the main transporting means 11.
1a is located above the end 12a of the sub-transport means 12 and the end 21b is located above the main transport means 11 so as to pass the work 13 of the main transport means 11 as it is (indicated by a chain double-dashed line in the figure). Position).
This raising / lowering is controlled by the control unit 25 via the driver 24, and this raising / lowering control is continuously performed at a constant cycle. In addition, as the cylinder 23 described above,
Any of an air type, an electric type, a cam type, a hydraulic type and the like can be used.

An upper stopper 26 is arranged near the terminal end 12a of the sub-transport means 12. Also, the main transport means 11
Also, the lower stopper 27 is arranged at the same position in the vertical direction with respect to the position where the upper stopper 26 is provided. These stoppers 26 and 27 are provided for each transporting means 1
Work stop means for intermittently stopping the transfer of the work 13 on each of the rods 1 and 12 and horizontally extending from the direction orthogonal to the transfer direction of the lines 11 and 12 to the rod 26.
The work 13 is formed by projecting a and 27a at a constant cycle.
Of the workpieces 13 is prevented by allowing the passage of the workpieces 13 by retracting the rods 26a and 27a from the rods 26a and 27a. The operation of these stoppers 26, 27 is controlled by the controller 25 via the respective drivers 28, 29 so as to continuously project at a constant cycle.

As shown in FIG. 2, a method of forming a gap between the works 13 by the stopper 26 is a rod 26a.
The work 13 is pressed toward the guide plate 17 by the tip of the and clamped. In this case, since the rod 26a is pressed against the work 13, an impact is applied to the work 13 and a scratch or the like is likely to occur. Further, the guide plate 17 may be broken by pressing the rod 26a. Therefore, a pressing member 30 having a cushioning action is provided at the tip of the rod 26a. The pressing member 30 includes, for example, a pressing member 31 and a spring 32. The pressing member 31 is provided so as to be movable along the moving direction of the rod 26a so as not to come off from the tip of the rod 26a. Spring 32
Is provided inside the pressing member 31, one end contacts the tip of the rod 26a, and the other end contacts the pressing member 31.
Is urged toward the protruding position. As a result, the work 13 can be prevented from being scratched or damaged, and the rod 26a can be prevented.
It is not necessary to control the protrusion amount of the with high accuracy.

The control of the control unit 25 is such that the stopper 26 is moved to the projecting position, the work 13 is pressed toward the one guide plate 17 by the rod 26a, and the work 13 is sandwiched between the guide plate 17 and the one guide plate 17. The passage of the work 13 is blocked. When the leading work 13 is stopped by the stopper 26, the succeeding work 13 also comes into contact with the leading work 13 and slips with the belt conveyor 16 to be stopped sequentially. By moving the stopper 26 to the retracted position from this state, the leading work 13 is sent out, and by moving the stopper 26 to the projecting position thereafter, the next sent work 13 is pressed and stopped. By repeating this control at a constant cycle, it is possible to generate a space between the works 13 sent from the end of the sub-transporting means 12. The other stopper 27 is also provided with the pressing member 30 having the same configuration as described above, and the same control is performed.

As shown in FIG. 3, the control section 25 carries out the raising / lowering cycle of the raising / lowering shooter 20 in F1 hours. This time F1
Is composed of a time T1 of holding in the retracted position, a time T2 of holding in the merging position, and a time required to move up and down. At time T1, the work 1 sent from the main transport means 11 until the work 13 passes through the confluence position of the elevating shooters 20.
It is set to the unit feeding time of 3 pieces. Also, the time T
2 is set to a unit feed time for one work 13 until the work 13 delivered from the sub-transport means 12 passes through the elevating shooter 20 and merges with the main transport means 11.
These are determined according to the length of the work 13 in the longitudinal direction, the speed of the belt conveyors 14 and 16, the sliding time of the sliding stand 21, and the transport distance from the stoppers 26 and 27 to the merging position.

The timing at which the stoppers 26 and 27 are moved from the projecting position to the retracted position is generally the lifting shooter 2
The movement of 0 is detected by the sensor and is linked to the signal obtained from this sensor. However, in this embodiment, in order to reduce the cost, the sensor is omitted and the stoppers 26, 2 are not linked with the movement of the lifting shooter 20.
The operation of No. 7 is continuously operated with a shift corresponding to the same cycle as that of the elevating shooter 20, that is, a unit feed time of one work 13.

More specifically, the operating cycle F1 of the upper stopper 26 is the time from the time of moving from the projecting position toward the retracted position to the time of moving again toward the retracted position, which is the same cycle F1 as the lifting shooter 20. Set to.
This time is the time T3 when the stopper 26 is moved to the retracted position and one workpiece 13 passes therethrough, and the stopper 26
Is moved to the projecting position and the passage of the work 13 is blocked. Further, the lower stopper 27 is also set to the cycle F1 like the upper stopper 26, and this cycle F1 is continuously operated with a phase shifted by a half cycle from the operation cycle F1 of the upper stopper 26. The operating cycle F1 of the lower stopper 27 is 1 when the stopper 27 is moved to the retracted position.
It is composed of a time T5 during which the individual work pieces 13 pass therethrough and a time T6 during which the stopper 27 is moved to the projecting position to prevent the work pieces 13 from passing therethrough. In FIG. 3, the rod 26
It is assumed that the movements of a and 27a are instantaneously performed.

The phase difference between the upper stopper 26 and the elevating shooter 20 is at least after a lapse of time T2 from the time when the upper stopper 26 moves from the protruding position toward the retracted position.
The elevating shooter 20 is shifted from the merging position toward the retracted position at a timing to be lifted. Further, the phase difference between the lower stopper and the elevating shooter is the timing at which the elevating shooter 20 is lowered from the retracted position toward the merging position at least after a lapse of time T1 from the time when the lower stopper 27 moves from the protruding position toward the retracted position. Without slipping. As a result, after joining the main transport means 11, the works 13 are transported in a line at a distance corresponding to the time T1 and the time T2.

The operation of the above configuration will be described. The elevating shooter 20 and the upper and lower stoppers 26 and 27 are continuously driven by the control unit 25 while maintaining the cycle and phase shown in FIG. The sub-transporting means 12 and the main transporting means 11 are continuously traveling, and the workpieces 13 are continuously transported to them respectively from the downstream side. When the leading work piece 13 arrives at the time when the upper stopper 26 moves to the projecting position, this work piece 13 is pressed by the rod 26a toward one guide plate 17 and is clamped between the guide plate 17 and stopped here. To be At this time, the pressing member 30 reduces the impact. This pressing is shown in FIG.
For the time indicated by T4.

After the time T4 has elapsed, the upper stopper 26 moves to the retracted position. Due to this movement, the top work 13 is
It is conveyed toward the elevating shooter 20. At this time, the elevating shooter 20 is moving to the merging position. The movement of the upper stopper 26 to the retracted position is performed for the time indicated by T3 in FIG. 3, and then moves to the protruding position again. As a result, the work 13 following the sub-conveying means 12 is moved to the rod 26
It is pressed against the guide plate 17 by a, is sandwiched between the guide plate 17 and is stopped at this position, and one work piece 13 can be separated and sent out for a predetermined period.

When the leading work 13 sent out from the sub-transporting means 12 slips on the sliding table 21 of the elevating shooter 20 and reaches the top of the main transporting means 11, the time indicated by T2 in FIG. 3 has elapsed, After that, the elevating shooter 20 is raised toward the retracted position.

The lower stopper 27 moves to the retracted position when the upper stopper 26 moves to the projecting position, and to the projecting position when the upper stopper 26 moves to the retracted position. Therefore, at the time when the leading workpiece 13 of the sub-conveying means 12 is sent out by the above-mentioned movement of the upper-stage stopper 26 to the retracted position, the lower-stage stopper 27 has moved to the projecting position, and here, at the beginning of the main-conveying means 11. Work 13
Is blocking the passage of.

After that, when the elevating shooter 20 moves to the retracted position, the lower stopper 27 moves to the retracted position and allows the leading work 13 to pass. The movement of the lower stopper 27 to the retracted position is performed for the time indicated by T5 in FIG. 3, and then moves to the protruding position again. As a result, the work 13 following the main transport means 11 is stopped at this position, and one work 13 can be separated and sent out for a predetermined period.

The leading work 13 sent out from the main transfer means 11 is transferred as it is toward the downstream side of the main transfer means 11 because the elevating shooter 20 is moved to the retracted position. Thereafter, the work 13 has passed through the confluence position of the elevating shooters 20 after the time indicated by T1 in FIG. After the elapse of this time T1, the elevating shooter 20 is lowered again toward the merging position.

After that, by repeating the above-mentioned operation continuously, the works 13 sent out from the sub-conveying means 12 merge into the space between the works 13 conveyed by the main conveying means 11 and merge. After that, the works 13 are conveyed in a line in a state of being separated from each other by a predetermined distance.

[0024]

EXAMPLE A conveying device 10 is used in a line for collecting a used lens-fitted film unit from a developing station to a factory and recycling it in the factory. The lens-fitted film unit is collected in a state of being collected in a container such as a container. The recycle line has an aligning device and a conveying device 1.
0, and an inversion device and the like in this order.

The lens-fitted film unit is immediately supplied from the container to the recycle line and conveyed to the aligning device. In the aligning device, the longitudinal direction is aligned with the carrying direction. In this state, the finder is divided into two types of postures, an upright posture in which the finder is in an upper position and an inverted posture in which the finder is in a lower position.
Of the lines arranged vertically according to these postures, the one in the inverted posture is separately conveyed to the upper sub-conveying means 12 and the one in the upright posture is separately conveyed to the lower main conveying means 11,
The transfer device 10 forms a single line that is isolated for a predetermined time and transfers the transfer device 10 to the reversing device.

The reversing device reverses the inverted posture to the upright posture so that all the postures are the same.

In the lens-fitted film unit, types having different focal lengths, exposure screen sizes, and the like, and types having different shapes depending on whether there is a strobe are mixed. The lens-fitted film unit is conveyed to the main conveying means 11 and the sub-conveying means 12 in a mixed state of these types. Table 1 shows examples of the shapes of these varieties.

[0028]

[Table 1] (Unit: mm) (The symbol is the length dimension of the portion shown in FIG. 4.)

In order to improve the merging efficiency, it is necessary to devise a mechanism for passing the lifting shooter 20 quickly. Therefore, in this embodiment, a sliding material (low friction conveyor belt) is attached to the sliding surface of the sliding table 21 to reduce the time indicated by T2 in FIG. As a result, the cycle F1 of the elevating shooter 20 can be set to a short time, so that the cycle can be shortened as a whole and the merging efficiency is improved. As the sliding material, a sliding table subjected to Teflon processing may be used, or a resin such as Duracon or a steel material having a satin finished surface may be used.

The stoppers 26 and 27 have a standard working pressure of 5 k.
Rods 26a, 27a with g / cm ² air cylinder
I was allowed to go in and out. As the spring 32 used for the pressing member 30, the elasticity capable of pressing with a different width (W) depending on the product type, the impact force given to the lens-fitted film unit, the lens-fitted film unit between the guide plates 15 and 17. A load of 50g considering the force required to press and pinch and the belt conveyor speed
A compression coil spring having a characteristic of being compressed by 17 mm from the free length at the time of f is adopted.

When the stoppers 26, 27 are moved to the retracted positions, the belt conveyor speed and the stoppers are set so that at least one lens-fitted film unit having the smallest length (L) in the longitudinal direction passes through. Times T3 and T5 during which 26 and 27 are moving to the retracted position are set. For example, the speed of the belt conveyors 14 and 16 of the sub-transporting means 12 and the main transporting means 11 is set to 54 m / min, and the time T during which the respective stoppers 26 and 27 are moved to the retracted position is T.
3 and T5 are each set to 1 sec. As a result, the film unit with a lens with the shortest length in the longitudinal direction is
It is possible to prevent individual pieces from being sent out. In this example, the lens-fitted film unit of the type having the longest length (L) in the longitudinal direction may be pressed twice by the timing of movement of the stoppers 26 and 27 to the projecting position. In this case, since the lens-fitted photo film unit is not delivered, it is separated by a long interval corresponding to this amount after the merge, but it does not hinder the reversing device.

The times T3 and T5 during which the stoppers 26 and 27 are moving to the retracted positions are the length (L) in the longitudinal direction.
The time may be equal to or less than the time required for passing only one lens-fitted film unit of the smallest type. Further, the times T3 and T5 for moving the stoppers 26 and 27 to the retracted positions do not have to be the same time, and may be set to different times.

Further, when it is considered that one of the lines is preferentially transported according to the transport amount, the operation period may be changed between the upper stopper 26 and the lower stopper 27. For example, as shown in FIG. 5, the lower stopper 2
The upper stopper 26 is actuated twice during the time T6 during which 7 moves to the projecting position. In this case, since the two works 13 are conveyed from the sub-conveying means 12 toward the elevating shooter 20 at a predetermined distance, the time T2 for moving the elevating shooter 20 to the merging position is also lengthened by this amount. You can leave it. As a result, after merging, one work 13 is passed from the main transport means 11, and then two work 13 is transported from the sub-transport means 12 in the order in which they are transported. Can be preferentially processed. When the amount of conveyance of the main conveyance means 11 is large, the operation cycle of the lower stopper 27 is doubled with respect to the operation cycle of the upper stopper 26, and the operation cycle of the lifting shooter 20 is changed in accordance with these operation cycles. Just match.

In the above embodiment, the work merging means is the raising / lowering shooter 20, but the present invention is not limited to this.
For example, as shown in FIG. 6, a belt conveyor 40 is used in place of the elevating shooter 20, and one end 40a of the belt conveyor 40 is used as a shaft to rotate the other end 40b between a position approaching the main transport means 11 and a position away from the main transport means 11. You may do it. In this case, the belt conveyor 40 may be constantly driven, or may be driven only while the leading end 40b approaches the main transport means 11.

Further, in the above embodiment, either one of the two sub-conveying means is also used as the main conveying means.
For example, as shown in FIG. 7, a plurality of sub-conveying means 50, 51, 52 for conveying the work in the horizontal direction are arranged in the vertical direction, and the main conveying means is provided on the opposite side of the belt conveyor 53 which is the work merging means. A configuration in which one 54 is arranged may be used.
In this case, stoppers 55 to 57, which are work stopping means, are provided on the downstream sides of the sub-transporting means 50 to 52, respectively.
The phase of the operation cycle of these stoppers 55 to 57 is shifted in time series for each of the sub-transporting means 50 to 52, and the belt conveyor 53, which is a work joining means, is rotated about the shaft 53a in accordance with this phase. When one end 53b is made to approach the downstream tip of each of the sub-transporting means 50 to 52 in time series, the works transported from the sub-transporting means 50 to 52 are separated from the main transporting means 54 for a predetermined time and joined in a line. You can

Further, in the above-mentioned embodiment, the device for merging the works conveyed from a plurality of places in a line is used. However, in the case of the conveying device shown in FIGS. 6 and 7, the conveying directions of the respective conveying means and the work merging means. By reversing the above, it is possible to use it as a device for separating the workpieces, which are continuously conveyed, at a plurality of places for a predetermined period. Further, in the above embodiment, the belt conveyor is used, but a roller conveyor or the like may be used instead of this.

[0037]

As described above, according to the present invention, since the main transport means and the sub transport means are vertically offset from each other, the occupation area is only the area of one transport means in the horizontal direction. The installation area can be reduced. Also,
As the work stopping means, since the rods provided on the respective conveying means are projected at a constant cycle, the work can be performed by a simple software control.

According to the second aspect of the present invention, since the work is stopped by intermittently stopping the conveyance of the work on each conveying means by sandwiching the work between the guide plate and the guide plate, Even if only one piece is provided, it is possible to surely form an interval between the works even in the case of a work transfer form in which no gap is formed in the front and back in the connected state, and it is possible to reduce the cost. In the invention described in claim 3, since the work stopping means is operated by shifting the respective drive timings in correspondence with the unit feed time for one work, the work can be performed by software-based simple control. Further, in the invention according to claim 4, since the pressing member that elastically presses and clamps the work between the guide plate and the guide plate is provided at the tip of the rod, damage to the work can be prevented and the protrusion amount of the rod can be increased. Since it is not necessary to manage with precision, cost reduction can be achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an outline of a work transfer device.

FIG. 2 is a cross-sectional view schematically showing a stopper in which a pressing member is attached to the tip of a rod.

FIG. 3 is a timing chart of each mechanism of the transport device.

FIG. 4 is a perspective view illustrating symbols shown in Table 1 for each type of film unit with a lens.

FIG. 5 is a timing chart of another embodiment in which the works conveyed from the sub-conveying means are preferentially merged.

FIG. 6 is an explanatory view of another embodiment in which a conveyor is used instead of the lifting shooter.

FIG. 7 is an explanatory diagram showing an example of a transport device that merges a plurality of sub-transport means with the main transport means.

[Explanation of symbols]

10 Conveying Device 11 Main Conveying Means 12 Sub-Conveying Means 14, 16, 40, 50, 51, 52, 53, 54 Belt Conveyors 15, 17 Guide Plate 20 Elevating Shooter 22 Sliding Base 30 Pressing Member

Claims (4)

[Claims] 1. A main transport unit and a sub-transport unit that are continuously traveling are arranged so as to be vertically offset from each other, and when the workpieces are sequentially transported in the horizontal direction in a state in which they are aligned, the respective transport units are transported. By the work stop means provided for each means to intermittently stop the work conveyed by each conveyance means on the conveyance means at a constant cycle, a space is generated between the works on each conveyance means, The merging means provided at the end of the sub-conveying means is intermittently driven in correspondence with the predetermined cycle, and the work conveyed by the sub-conveying means is generated between the works conveyed by the main conveying means. A work transfer method characterized in that the work is transferred within an interval. 2. A main carrying means for carrying a work in a horizontal direction in an aligned state, and a sub-carrier which is arranged so as to be vertically offset with respect to the main carrying means and carries a work in a horizontal direction in an aligned state. Conveying means, a guide plate provided on the side surface of each conveying means along the conveying direction, and provided for each conveying means, and on the conveying means at a constant cycle in a direction orthogonal to the workpiece conveying direction. Corresponding to the above-mentioned fixed period, a work stopping means for projecting and holding the work between the guide plate and intermittently stopping the conveyance of the work on each of the conveying means, thereby creating an interval between the works. And a work merging unit that intermittently drives the work and sends the works sent out from the end of the sub-carrying unit into the interval between the works carried by the main carrying unit. Transfer device. 3. The work stopping means stops the work at a position separated from the work merging means for a certain period of time, and shifts respective drive timings corresponding to the work unit feed time. Item 2. The work transfer device according to item 2. 4. The work stopping means is an actuator which is driven intermittently at a constant cycle, a rod which is projected onto the conveying means by the driving of the actuator, and which is attached to the tip of the rod, and when the rod is projected. The work transfer device according to claim 2 or 3, further comprising a pressing member that elastically presses the work against the guide plate to sandwich the work.