JPS6385862A - Schedule control system - Google Patents

Abstract

PURPOSE:To operate plural devices by the small number of operators by adjusting plural devices (lines) so that timing generated by operator's work is shifted in each device based on a parameter regulating operation and an operating state when plural devices are simultaneously operated. CONSTITUTION:The advancement of work in each device is calculated based on the parameter inputted from an input means 12 and the operating status of the device detected by a status detecting means. When the operator's work time bands of plural devices are overlapped as the result of calculating the work advancement, the operating speed of any one of the devices is controlled by a speed controller 22 so that the operator's work time bands are not overlapped. Then, the schedule of operator's work determined by adjustment is displayed. Consequently, the operators can execute work accurately and successively, so that the efficiency of work can be improved and misoperation can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Al Industrial Field of Application) The present invention relates to a schedule control system for controlling staff work schedules in a factory or the like where a plurality of production lines are operated simultaneously.

(b) Summary of the Invention The schedule control system according to the present invention determines the operation of a plurality of devices (lines) based on input parameters (input means) and detection contents of operating states (state detection means). The schedule is determined, and when staff work is to occur simultaneously on multiple devices, the operating speeds of the multiple devices are changed so that the staff work time periods do not overlap (adjustment means). Furthermore, as a result of the adjustment, the order in which the staff should perform the work is displayed (display means).

This allows a small number of staff to operate multiple devices.

(C1 Conventional technology Even in an automated production line, one or several staff members are required for product quality control, replenishment of raw materials, movement of products, etc.).

FIG. 5 schematically shows an electric wire manufacturing line that is an example of an automated manufacturing line.

This manufacturing line is a line for manufacturing communication cables and the like. Supply core 1 wound around the supply drum from the right in the figure. Reel of LAP tape (laminate tape) wrapped around the surface of the supply core8. Welding machine for LAP tape10. A LAP tape forming device 11 that wraps the LAP tape fed out from the tape 8 and placed under the supply core around the supply core. Sheath extruder for extruding polyethylene compound3. Water tank for cooling the polyethylene compound shaped into the outer jacket4. A counter 5 for measuring the length of the manufactured electric wire, a take-up machine 6 equipped with a caterpillar for taking up the supply core, and a winding machine 7 having a reel for winding the product are provided. Further, a tear string 9 inserted between the LAP tape and the jacket and used to peel off the jacket is supplied to the LAP tape forming machine 11 from a tear cord reel. Further, a wire 2 that supports the tensile force when the electric wire is stretched is supplied from a reel to a sheath extruder 3.

This messenger wire is covered with a sheath parallel to the supply core.

Note that 12 is an input device for inputting manufacturing control data and the like.

The operation of this production line is carried out by a person (hereinafter referred to as the "handleman") who is in charge of driving and stopping the supply drum and winding drum replacement production line, adjusting the two-piece die, etc.
A person in charge of monitoring product winding and preparing raw materials (hereinafter referred to as "winding man").

) and a person (hereinafter referred to as the "preparation man") in charge of preparations such as replacing drums and replenishing raw materials.

(d) Problems to be solved by the invention Conventionally, on the electric wire manufacturing line as described above, three people were always assigned to work on each production line. During normal operation, only two people (a handleman and a take-up man) are sufficient, and the work of a preparation man is only required in special situations such as when replenishing raw materials or replacing the take-up drum. Met.

For this reason, there was a drawback that the labor force of preparation personnel could not be fully utilized.

However, in conventional factories, multiple production lines were operated independently without being linked.
In some cases, preparation staff work on multiple production lines (such as running out of raw materials or replacing reels) occurs at the same time, and it is not possible to have one preparation staff concurrently work on these multiple production lines.

In view of these problems, it is an object of the present invention to provide a schedule control system that allows a small number of staff (preparation personnel) to operate a plurality of devices (manufacturing lines).

(e) Means for solving the problem The present invention provides a system that has a plurality of devices that require staff work during a predetermined time period and that operates these devices simultaneously, which defines the operation of each of the devices. an input means for accepting input of parameters; a state detection means for detecting the operating state of each device; and a shift of the staff working time of each device based on the parameters input from the input means and the detection contents of the state detection means. The present invention is characterized by comprising: an adjustment means for controlling the operating speed of each device, and a display means for displaying the staff work schedule determined by the adjustment means.

(f1 effect) The schedule control system of the present invention calculates the progress of the work of each device based on the parameters input by the input means and the operating state of the device detected by the state detection means. If the staff's work time periods overlap, the operating speed of one of the devices is controlled to prevent the staff's work time slots from overlapping.

(Bright Embodiment FIG. 1 is a block diagram of an electric wire manufacturing line to which a schedule control system according to an embodiment of the present invention is applied.

This production line consists of 3 independent production lines shown in Figure 5.
m (A, B, C) are installed. Each production line A, B
, C are connected to the control device 20. A counter 5 for detecting the wire manufacturing length for a certain period of time and a speed regulator 22 for controlling the winding speed of the winding machine 6 are connected to the control device 20. In addition, each production line A,
An input device 12 for inputting manufacturing items, lengths, etc. of B and C and displaying staff work schedules, etc. and the control device 20 are connected to a data processing device 21. The input device 12 has a keyboard for inputting data and a CRT for displaying work schedules and the like. Data such as manufacturing items and length of the manufacturing line correspond to the parameters of the present invention. Both the control device 20 and the data processing device 21 are CPUs.
, ROM, and RAM. The RAM of the data processing device 21 includes a reservation file that stores the manufacturing schedule of each manufacturing line, a schedule file that stores the manufacturing speed control schedule and staff work schedule of each manufacturing line, and when the manufacturing line is not operating as controlled. A notification flag is set to store this fact.

Here, the details of the work performed by the preparation man on the production line will be explained.

■Manufacturing preparation work - Various tasks for preparing raw materials and setting quality at the start of manufacturing are performed in collaboration with the handler and winder.

■Rewinding work - When the product has been wound up to a predetermined length on the winding drum, the winding drum is removed and an empty winding drum is set in the winding machine 7. This is done in collaboration with the handleman.

■Supply replacement work - When the supply core is empty, the next Lovely core is set and the core cable is jointed to ensure that the product is not interrupted. This is done in collaboration with the handleman.

■Organization and resizing work--Work that involves organizing the work after a product has been manufactured and preparing for the next work. This is done in collaboration with the handleman and take-up man.

Of these, ■Production preparation work and ■Organization and size change work occur at the start and end of production line operation, and ■Rewinding work and ■Supply change work occur periodically during production line operation. The timing chart of FIG. 2 shows such a work occurrence state. When each work (shown in the upper row) is combined, the work schedule shown in the lower row is obtained.

This amount of work occurs on each production line, and when multiple production lines are in operation, the work is proportional to the number of production lines in operation.

Figure 3) shows the control device 20. Data processing device 2
1 and an input device 12. FIG.

The hole in the figure is a flowchart showing the schedule control operation of the data processing device 21. This operation starts when one manufacturing schedule is manually started and the work starts, and step n 1' (hereinafter, step ni is simply referred to as ni).
It is determined whether a new manufacturing schedule has been input. If there is an input, the schedule is read out (n2) and a work chart is created (n3). When a plurality of production lines are operating at the same time, the adjustment for changing the operating speed of each line is calculated so that the working time periods that require preparation personnel do not overlap on each production line (n4). As a result, if it is possible to avoid overlapping work hours of the preparation staff, write the schedule to the schedule file (n6)
, display the staff work schedule on the display of the input device 12 (n
l). A display example is shown in Figure 4 (C1).Wait for 10 seconds at n8, refer to the notification flag (n9), and return to nl.nl
If it is determined that no new work schedule has been input, the process directly proceeds to n4. Furthermore, if it is not possible to avoid overlapping work hours of the preparation staff as a result of calculation processing, an alarm is issued to request an assistant staff member (n5.n1O).

FIG. 3 (Bl is the human power device 12 and the data processing device 21
3 is a flowchart showing the manufacturing schedule input operation of FIG. When the manufacturing schedule is entered by the handleman prior to the production line operation (n11), the work schedule is reported to the data processing device 21. The data processing device 21 writes the work schedule in the reservation file during the free time of the schedule control operation (n13). Input device 12 during this operation
The contents displayed on the display are shown in Fig. 4 (A) and (B).

FIG. 3(C) is a flowchart showing the manufacturing speed control operation of the control device 20. At n21, the schedule file is referred to and it is determined whether or not it is time to change the manufacturing speed of any production line (n22). When it is time to change the manufacturing speed, issue a command to the speed regulator 22 of the relevant manufacturing line to change the manufacturing speed.
23), After waiting for 10 seconds, return to n21. If it is not time to change the manufacturing speed, the process proceeds directly to n24 based on the judgment in n22.

In the same figure (DJ is a flowchart showing the manufacturing line monitoring operation of the control device 20. The manufacturing speed of the manufacturing line is detected from the counter 5 (n31), and the manufacturing speed of the manufacturing line is determined according to the schedule by referring to the schedule file (n32). It is determined whether it matches (n33). If they do not match, a notification flag corresponding to the abnormality is set (n34) and the process proceeds to n35. If it is normal, the process proceeds directly to n35 based on the judgment in n33. After waiting for 10 seconds at n35, return to n31.

The input device 12 and the operation shown in FIG. 3 (B) correspond to the input means of the present invention, the counter 5 and the operation shown in FIG. 3 (CD) correspond to the state detection means of the present invention,
Said speed regulator 22 and n3. The operations shown in n4 and FIG. 3 (C1) correspond to the adjusting means of the present invention, and the input devices 12 and n7 correspond to the display means of the present invention.

(h) Effects of the Invention According to this invention, even when multiple devices (lines) operate simultaneously, the timing at which staff work occurs in each device is based on the parameters that define the operation and the operating state. It can be adjusted to shift. As a result, a plurality of devices can be operated by a small number of staff members, and labor savings in factories and the like can be promoted.

In addition, by displaying the work schedule for staff who alternately operate multiple devices, staff can perform tasks accurately and sequentially, contributing to increased work efficiency and reduced mistakes. can do.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of a production line in which a schedule control system according to an embodiment of the present invention is used, FIG. 2 is a diagram showing the timing of occurrence of staff work on the production line, and FIG. A control device and a data processing device that control the manufacturing line. A flowchart showing the operation of the input device, Figure 4-(C
) is a diagram showing the display contents of the display of the input device, and FIG. 5 is a diagram showing an outline of a general single manufacturing line. 1-supply core, 5-counter, 7-winding machine, 12-
Human power device, 20-control device, 21-data processing device, 22-speed regulator.

Claims (1)

[Claims] (1) In a system that has a plurality of devices that require staff work during a predetermined time period and operates these devices simultaneously, the system includes an input means for accepting input of parameters that define the operation of each of the devices, and each device. a state detection means for detecting the operating state of the device; and an adjustment means for controlling the operating speed of each device in order to shift the staff working time of each device based on the parameters input from the input means and the detection contents of the state detection means. A schedule control system comprising: , a display means for displaying the staff work schedule determined by the adjustment means;