JP2010191752A - Production line - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a production line for improving a production arrangement rate. <P>SOLUTION: The production line 1 is provided with a conveyer 10 for uni-directionally conveying a workpiece; and a production facility 20 which is arranged at one side of the conveyer 10 and used for operation for the workpiece conveyed to a prescribed position by the conveyer 10. An arrangement space 32 of a working region 31 where an operator 30 works for the workpiece to be conveyed by the conveyer 10 is configured at the other side of the conveyer 10 including a conveyance path. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a production line.

  Conventionally, there is a production line in which a work process by a production facility and a work process by an operator are mixed. Such a production line is generally provided with a plurality of production facilities along the line. Then, in the process sandwiched between the upstream production facility and the downstream production facility, an operator performs work.

  FIG. 5 shows an example of a conventional production line. The production line 101 includes a conveyor 110, a production facility 120 installed on the conveyance path of the conveyor 110, and a work area 131 by an operator 130 disposed between the production facility 120 and the production facility 120.

Japanese Patent Laid-Open No. 9-192952

  By the way, the work in the process between the production equipment 120 and the production equipment 120 is work that must be completed before the work is sent to the downstream production equipment 120 after the work by the upstream production equipment 120 is completed. .

Therefore, the work in the process sandwiched between the production facilities 120 cannot be averaged with respect to the line tact, and work loss is likely to occur depending on the process. Such work loss causes a reduction in the process organization rate.
It is desirable that the worker 130 can freely travel between the adjacent work areas 131 and manage the man-hours for the processes in each work area 131.

  However, as shown in FIG. 5, when the production facility 120 is installed on the conveyance path of the conveyor 110, the production facility 120 prevents the worker 130 from moving along the conveyor 110. It is a heavy burden to work around 120.

  Therefore, in practice, it is difficult to assign the man-hours to work beyond the production facility 120 to the worker 130, and as a result, it is difficult to improve the process organization rate.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a production line capable of improving the process organization rate.

  The production line of the present invention comprises a conveyor that conveys workpieces in one direction, and a production facility that is installed on one side of the conveyor and used for work on workpieces that are conveyed to a predetermined position by the conveyor, On the other side including the conveyance path of the conveyor, an arrangement space of a work area where an operator works on a work conveyed by the conveyor is configured.

  Moreover, it is preferable that the said production equipment is installed apart from the said conveyor, and the said conveyor equips the part with the detour conveyor unit which conveys a workpiece | work between the conveyance path of the said conveyor, and the said production equipment.

  The bypass conveyor unit is installed in place of a predetermined length portion of the conveyor, and the bypass conveyor for diverting and joining the work from the conveyor transport path and the work along the conveyor transport path. It is preferable to be able to select non-bypass conveyance to be conveyed.

  Moreover, it is preferable that the said work area | region can be arrange | positioned in the conveyance direction arbitrary positions of the said conveyor including the non-detour conveyance path of the said detour conveyor unit in the said arrangement space.

  According to the present invention, since the production facility and the work area are arranged on the opposite side across the conveyor, the operator can move from one work area to another work area along the line without being interrupted by the production equipment. Therefore, it is possible to work freely, so that the process organization rate can be improved.

It is a schematic plan view which shows one Embodiment of the production line by this invention. It is a schematic plan view which shows the state which moved the work area | region in embodiment of FIG. It is a schematic plan view which shows the middle of expansion in other embodiment of the production line by this invention. It is a schematic plan view which shows the extension result of embodiment of FIG. It is a schematic plan view which shows an example of the conventional production line.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic plan view showing an embodiment of a production line according to the present invention. This production line 1 includes a conveyor 10, production equipment 20, and a work area 31 by an operator 30.

  The conveyor 10 conveys a workpiece in one direction. In FIG. 1, the conveyor 10 is configured to convey the workpiece from right to left.

The production facility 20 is installed on one side of the conveyor 10, that is, on the right side in FIG. 1 when viewed from the conveyance direction of the workpiece, and is used for work on the workpiece conveyed to a predetermined position by the conveyor 10.
In FIG. 1, three production facilities 20k, 20l, and 20m are installed apart from the conveyor 10. These production facilities 20k, 20l, and 20m are installed in parallel to the conveyor 10 and spaced from each other. It is preferable that the mutual space | interval of the production facilities 20k, 20l, and 20m is a predetermined predetermined space | interval.

The conveyor 10 includes a bypass conveyor unit 11 that conveys workpieces between the conveyor 10 and the production facility 20.
In FIG. 1, three detour conveyor units 11k, 11l, and 11m corresponding to the production facilities 20k, 20l, and 20m are installed.

  The detour conveyor unit 11 is installed in place of a predetermined length portion of the conveyor 10, and is configured to be able to select detour conveyance and non-detour conveyance.

That is, when the detour conveyance is selected, the detour conveyor unit 11 diverts the work conveyed from the upstream side of the conveyor 10 from the conveyance path of the conveyor 10 and conveys the work to the production facility 20.
Moreover, a workpiece | work is conveyed from the production facility 20 to the conveyor 10, is made to join the conveyance path of the conveyor 10, and is conveyed downstream.
For example, when the detour conveyor unit 11 is in an operating state, detour conveyance is selected.

When the non-bypass conveyance is selected, the detour conveyor unit 11 causes the workpiece conveyed from the upstream side of the conveyor 10 to be conveyed downstream as it is along the conveyance path of the conveyor 10.
In this case, the conveyance of the work by the conveyor 10 is exactly the same as when the detour conveyor unit 11 is not provided.
For example, when the detour conveyor unit 11 is in an inoperative state, non-detour conveyance is selected.

  Each bypass conveyor unit 11k, 11l, and 11m can independently select an operating state or an inoperative state. Therefore, each of the detour conveyor units 11k, 11l, and 11m is independently selected to be detoured or non-detoured.

On the other side of the conveyor 10, that is, on the left side in FIG. 1 when viewed from the workpiece conveyance direction, an arrangement space 32 of a work area 31 where an operator works on the workpiece conveyed by the conveyor 10 is configured.
The arrangement space 32 includes the conveyance path of the conveyor 10.
Further, the production facility 20 is not installed at all in the arrangement space 32.

The work area 31 can be arranged at any position in the conveying direction of the conveyor 10 in the arrangement space 32.
That is, the work area 31 can be disposed between the production facilities 20k, 20l, and 20m in the conveying direction of the conveyor 10, as shown in FIG.
In FIG. 1, the work area 31k is arranged between the bypass conveyor unit 11k corresponding to the production facility 20k and the bypass conveyor unit 11l corresponding to the production facility 20l.
Further, a work area 31l is arranged between the bypass conveyor unit 11l corresponding to the production facility 20l and the bypass conveyor unit 11m corresponding to the production facility 20m.

As shown in FIG. 2, the work area 31 can be arranged at a position corresponding to the production facilities 20 k, 20 l, and 20 m in the conveyance direction of the conveyor 10.
In FIG. 2, the work area 31k is arranged at the position of the conveyor 10 including the right half in the drawing of the bypass conveyor unit 11l corresponding to the production facility 20l.
Further, a work area 31l is arranged at the position of the conveyor 10 including the left half in the figure of the detour conveyor unit 11l corresponding to the production facility 20l.

In FIG. 2, the right half of the bypass conveyor unit 11l in which the work area 31k is arranged is transferred to the production facility 20 by diverting the workpiece from the transfer path of the conveyor 10 when the bypass conveyor unit 11l is in an operating state. It is a detour conveyance branch channel.
Further, the left half of the bypass conveyor unit 11l in which the work area 31l is arranged is a part where the workpiece is transported from the production facility 20 to the conveyor 10 when the bypass conveyor unit 11l is in an operating state, and is transferred to the conveyor path of the conveyor 10. It is a detour conveyance joint flow path to be joined.
Both the detour conveyance branch flow path and the detour conveyance joint flow path are non-detour conveyance paths that convey the work as it is along the conveyance path of the conveyor 10 when the detour conveyor unit 11l is in an inoperative state.

Thus, in the arrangement space 32, the work area 31 may be arranged between the production facilities 20k, 20l, and 20m along the conveyance direction of the conveyor 10, or at a position corresponding to the production facilities 20k, 20l, and 20m. You can also
Therefore, the work areas 31k and 31l can be arranged, for example, with a space therebetween or adjacent to each other.

  In addition, there is nothing in the arrangement space 32 that hinders the movement of the workers 30k, 30l. Therefore, the workers 30k and 30l can freely go back and forth between the work areas 31k and 31l, for example.

In the production line 1 shown in FIG. 1, the line tact is assumed to be 500 seconds, for example. That is, the cycle time of each equipment 20k, 20l, 20m is 500 seconds.
Further, it is assumed that the number of process steps in the work area 31k between the facilities 20k and 20l is, for example, 400 seconds.
Further, it is assumed that the number of process steps in the work area 31l between the facilities 20l and 20m is, for example, 600 seconds.

  In this case, the man-hour of the process in the work area 31k is a man-hour of 400 seconds for a line tact of 500 seconds. Therefore, the process organization rate in the work area 31k is initially 80%. That is, the worker 30k works for 400 seconds.

The work for which the work of the worker 30k in the work area 31k has been completed is transported to the production facility 20l by the detour conveyor unit 11l, and the man-hours of a predetermined process are worked.
After completion of the work in the production facility 20l, the work is conveyed to the work area 30l by the detour conveyor unit 11l.
The worker 30k moves to the work area 31l at a timing when a hand is free from work in the work area 31k.

The worker 30k can work the remaining man-hours for the remaining 100 seconds with respect to the 500-second line tact on the workpiece conveyed from the production facility 20l to the work area 31l. The man-hour for 100 seconds can be obtained from the man-hour for 600 seconds of the process in the work area 31l.
Thereby, the process organization rate of the worker 30k finally rises to 100% full of line tact.
The worker 30k who has finished working for 100 seconds in the work area 31l moves to the work area 31k.

The process in the work area 31l has a man-hour of 600 seconds for a line tact of 500 seconds. However, since the man-hour for 100 seconds has already been worked by the worker 30k, the man-hour for 500 seconds remains.
The man-hour for 500 seconds is a man-hour that can be worked by one worker 30l. Therefore, the worker 30l performs the man-hour of 500 seconds. Therefore, the process organization rate of the worker 30l becomes 100% of the full line tact.

  Thus, in the case of the production line 1, only two workers, 30k and 30l, are required. The process organization rate of each worker 30k, 30l is 100%.

  On the other hand, in the case of the conventional production line 101 as shown in FIG. 5, since the production equipment 120 is arranged on the conveying path of the conveyor 110, the production equipment 120 moves the worker 130 along the conveyor 110. In this way, it is difficult for the worker 130 to work around the production facility 120.

Therefore, in the case of the conventional production line 101, three workers are required. That is, one person is required for a process with a man-hour of 400 seconds for a line tact of 500 seconds, and two persons are required for a process with a man-hour of 600 seconds for a line tact of 500 seconds.
And the process organization rate of the worker who works the man-hour of 400 seconds for the line tact of 500 seconds becomes 80%.
In addition, the process organization rate of a two-worker who works on a man-hour of 600 seconds for a line tact of 500 seconds is about 60%.

In the case of the production line 1, the production facility 20 is not installed at all in the arrangement space 32 of the work area 31 configured on the left side including the conveyance path of the conveyor 10 when viewed from the workpiece conveyance direction.
That is, there is nothing in the arrangement space 32 that hinders the movement of the workers 30k and 30l, and the workers 30k and 30l can freely move between the work areas 31k and 31l.
Therefore, the process man-hours in the work area 31k and the process man-hours in the work area 31l can be adjusted beyond the production facility 20l.

Therefore, in the case of the production line 1, it is possible to improve both the process organization rate of the worker 30k in the work area 31k and the process organization rate of the worker 30l in the work area 31l.
In addition, the worker is not disposed wastefully, and the work efficiency in the work areas 31k and 31l can be improved.

  Next, in the production line 1 as described above, the line tact is assumed to be, for example, 500 seconds, the process man-hour in the work area 31k between the equipment 20k, 20l is assumed to be, for example, 600 seconds, and the work between the equipment 20l, 20m It is assumed that the number of process steps in the region 31l is, for example, 400 seconds.

  In this case, the process in the work area 31k has a man-hour of 600 seconds for a line tact of 500 seconds. Therefore, the worker 30k works for the man-hour of 500 seconds. Therefore, the process organization rate of this worker 30k is 100% of the full line tact.

Prior to this, the worker 30l moves to the work area 31k at the timing when his / her hand is freed from the work in the work area 31l. Then, the man-hour for the remaining 100 seconds of the process in the work area 31k is worked.
Thereby, the work for 600 seconds of the process in the work area 31k is completed.

The work for which the work for a total of 600 seconds in the work area 31k has been completed is transferred to the production facility 20l by the detour conveyor unit 11l, and the work for the predetermined process is performed.
Further, the worker 30l who has finished the work for 100 seconds in the work area 31k moves to the work area 31l.
After completion of the work in the production facility 20l, the work is conveyed to the work area 30l by the detour conveyor unit 11l.

The process in the work area 31l has only a man-hour of 400 seconds for a line tact of 500 seconds. However, the worker 30l has already completed the man-hour for 100 seconds in the process in the work area 31k.
In addition to this, the worker 30l performs the work for 400 seconds of the process in the work area 31l on the work transferred from the production facility 20l to the work area 31l. Therefore, the process organization rate of the worker 30l is 100% of the full line tact.

  Thus, in the case of the production line 1, only two workers, 30k and 30l, are required. The process organization rate of each worker 30k, 30l is 100%.

  FIG. 3 is a schematic plan view showing an expansion process in another embodiment of the production line according to the present invention, and FIG. 4 is a schematic plan view showing an expansion result.

  This production line 2 is for adding a new production facility 20p between the production facility 20m and the production facility 20n among the existing four production facilities 20k, 20l, 20m, and 20n.

  That is, as shown in FIG. 3, a new detour conveyor unit 11p and a new production facility 20p are prepared between the production facility 20m and the production facility 20n. And a part of conveyor 10 between the detour conveyor unit 11m and the detour conveyor unit 11n is replaced with a new detour conveyor unit 11p. In addition, a new production facility 20p is installed at a predetermined position of the detour conveyor unit 11p. The state after installation is shown in FIG.

This production line 2 can easily add the production equipment 20p by using the detour conveyor unit 11p that can be exchanged with a predetermined length portion of the conveyor 10.
On the contrary, the production facility 20p can be easily separated from the line by removing the detour conveyor unit 11p and replacing it with a predetermined length portion of the conveyor 10.

  In this way, when a new production facility 20p is added to an existing line, for example, in the conventional production line 101 as shown in FIG. 5, a running try during the line operation time (an act of performing a test while the facility is operating). Cannot be executed.

  On the other hand, in the production line 2, since the additional production equipment 20p is separated from the conveyor 10, installation during the line operation and a running try are possible.

  In addition, when a new production facility 20p is added to an existing line, in the conventional production line 101 as shown in FIG. 5, the adjustment (position and inclination of the workpiece) between the production facility and the conveyor 10 occurs. Only after the production facility is installed on the production line 101 can it be determined whether the production facility is performing the requested work (operating rate or accuracy).

  On the other hand, in the production line 2, since the production facility 20p to be added is separated from the conveyor 10, after judging whether the production facility 20p is performing the requested work in the installation maker, the production facility 20p is introduced. Can be installed.

  When any of the production facilities 20k, 20l, 20m, 20p, and 20n becomes inoperable, the conventional production line 101 as shown in FIG. The production of the entire line will stop.

  On the other hand, in the production line 2, since the production facilities 20k, 20l, 20m, 20p, and 20n are all separated from the conveyor 10, it is only necessary to add a substitute for the work performed by the production facility that has become inoperable. Can continue production.

  The production line 1 of the embodiment shown in FIGS. 1 and 2 includes three production facilities 20k, 20l, and 20m, and the production line 2 of the embodiment shown in FIGS. 3 and 4 has five production facilities. Although described as having 20k, 20l, 20m, 20p, and 20n, the present invention is not limited to this. It is possible to provide one or more production facilities 10 for any of the production lines 1 and 2.

  Moreover, although said embodiment demonstrated as a production line provided with the production equipment 10, this invention is not limited to this. For example, the present invention can be applied to an assembly line provided with assembly equipment instead of production equipment, or a production line provided with production equipment instead of production equipment.

1, 2 Production line 10 Conveyor 11 Detour conveyor unit 20 Production facility 30 Worker 31 Work area 32 Space for arrangement

Claims (4)

A conveyor that transports workpieces in one direction;
Production equipment used for work on workpieces installed on one side of the conveyor and transported to a predetermined position by the conveyor,
A production line characterized in that, on the other side including the conveyor conveyance path, an arrangement space of a work area in which an operator works on a workpiece conveyed by the conveyor is configured. In the production line according to claim 1,
The production facility is installed away from the conveyor,
A part of the conveyor is provided with a detour conveyor unit that conveys a workpiece between a conveyance path of the conveyor and the production facility. In the production line according to claim 2,
The detour conveyor unit is installed in place of a predetermined length portion of the conveyor, diverts the work to be diverted from the conveyor conveyance path and joins the work, and conveys the work along the conveyor conveyance path. A production line characterized by being configured to be able to select non-bypass conveyance. In the production line according to claim 3,
The production line, wherein the work area can be arranged in an arbitrary position in the conveying direction of the conveyor including a non-detour conveying path of the detour conveyor unit in the arrangement space.

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