CN1861877A - Sewing machine - Google Patents

Abstract

To provide a sewing machine capable of reducing the complexity and cost of operations required for production management. The sewing machine (10) provides the actual performance data to the main management device (101) which collects the actual performance data for managing the sewn products in each sewing process in units of batches to generate plan information, wherein the used The structure includes: a plan storage mechanism (35), which stores plan information from the main management device; a selection mechanism (20), which selects whether to input whether to carry out sewing of any sewing process of any batch in the plan information; plan update means (31) for writing the actual performance data related to the selected sewing process into the plan information stored in the plan storage means; and an output means for externally outputting the plan information to the main management device.

Description

sewing machine

technical field

The present invention relates to a sewing machine that provides actual performance data used in production management to a main management device.

Background technique

In the production management of sewn products produced by sewing operations using sewing machines, conventionally, terminal devices are installed everywhere around the personnel engaged in the sewing operations, and each terminal device sends a message to the main management device via a communication circuit. On the other hand, data related to the progress status or completion status of the sewing operation. On the other hand, the main management device organizes the received data to grasp the progress of the entire sewing product (for example, refer to Patent Document 1).

[Patent Document 1] Japanese Patent Application Laid-Open No. 5-84373

However, in the above-mentioned conventional technology, there is the following unfavorable situation: when the person in charge of the sewing operation sends data indicating the progress or completion status to the main management device, he must leave the sewing machine and transfer the data from the terminal. Since the work is input, the sewing work has to be interrupted, and the work efficiency is reduced.

In addition, in the conventional example described above, there is also an undesirable situation in which terminals need to be installed everywhere at the work site, and the construction of the system requires a huge equipment cost.

Contents of the invention

An object of the present invention is to enable production management while maintaining high work efficiency of people engaged in sewing work.

In addition, another object of the present invention is to reduce equipment costs and enable production management.

The first invention is a sewing machine that is provided to a main management device that manages the production of various sewn products in batches and collects actual performance data for each sewing process of each batch to generate plan information. The actual performance data of the sewing process performed in batches as the object, wherein, the structure it adopts includes: a plan storage mechanism, which reads and stores plan information from the main management device; a selection mechanism, which is used to select and input Any sewing process in the batches included in the plan information; a plan update mechanism, which writes the actual performance data into the plan information stored in the plan storage mechanism when implementing the selected sewing process; output A means for externally outputting the plan information stored in the plan storage means to the main management device.

The so-called "lot" refers to a group consisting of a plurality of sewn products of the same kind, and production and management thereof are performed in batch units. Moreover, the number of sewn products in a batch is not a fixed number, and can be set arbitrarily for each batch.

The "sewing process" means dividing the process of sewing each batch of sewn products into multiple types.

The "planning information" refers to information including data indicating prerequisites for production management such as the number of lots, the number of sewn products for each lot, and the sewing process for each lot.

The "actual performance data" refers to various data used as a reference for grasping the progress of each sewing process for each lot.

The second invention adopts the same structure as the first invention, and the plan updating means includes the data indicating the number of completed sewing products in the sewing process in the actual result data.

The third invention has the same configuration as the first invention, and the plan update means includes data indicating at least one of the start time or the end time of the sewing process in one lot in the actual result data.

The structure adopted by the 4th invention has the same structure as the 1st invention, and has an information communication means for reading in plan information and outputting it to the outside.

The structure adopted by the fifth invention has the same structure as the first invention, and has a personal ID input means for inputting or selecting the personal ID of a person who performs a specific sewing operation, and the plan update means writes the personal ID into the plan information.

The sixth invention adopts the same structure as the fifth invention, and has a sewing machine ID input means for inputting or selecting a sewing machine ID unique to the sewing machine, and a plan update means writes the sewing machine ID into the plan information.

The seventh invention has the same structure as the first invention, and has a sewing machine ID input means for inputting or selecting a sewing machine ID unique to a sewing machine, and a plan updating means for writing the sewing machine ID into the plan information.

The eighth invention has the same structure as the first invention, and has display means for displaying the scheduled completion time set in each sewing process of each lot included in the planning information.

(effect of invention)

In the first invention, since the sewing machine overwrites and updates the actual performance data on the provided plan information, and outputs the updated plan information to the main management device, it is possible to perform an input operation to the terminal device without leaving the sewing machine, which can be compared. High work efficiency can be maintained, and the main management device can grasp the progress or completion status of the sewing operation.

In addition, another terminal device other than the sewing machine is not required, and equipment costs can be reduced for production management.

Since in the second invention, as the actual performance data, data indicating the number of sewn products completed in the sewing process is included, in the third invention, as the actual performance data, data indicating the start time or time of the sewing process in one lot is included. The data of the end time, so the progress of each batch can be grasped more specifically by returning the updated plan information to the main management device.

Since the fourth invention has an information communication mechanism for reading in plan information and outputting it to the outside, it is possible to quickly exchange plan information and grasp the progress or completion status of sewing operations in real time.

Since the fifth invention includes the personal ID of the operator who performs the sewing work in the plan information, the progress of each lot in an operator unit can be grasped more specifically.

According to the sixth and seventh inventions, since the sewing machine ID of the sewing machine performing the sewing operation is included in the planning information, it is possible to more specifically grasp the distribution status of each lot or the flow of the operation in units of sewing machines.

In the eighth invention, since the scheduled completion time set for each sewing process in the planning information is displayed by the display mechanism, the operator can grasp the scheduled completion time and carry out the work, and can prevent unexpected transition of the scheduled time and improve the completion rate .

Description of drawings

FIG. 1 is a block diagram showing a schematic configuration of a production management system using a production management sewing machine;

Fig. 2 is an illustration example illustrating information content of plan information generated by a master management device in a tabular form;

Fig. 3 is a diagram example illustrating in more detail the content of each piece of information assigned to each sewing process in a tabular form within the plan information in Fig. 2;

Fig. 4 is a block diagram showing a schematic configuration of a production management sewing machine;

Fig. 5 is a flow chart showing all processes performed after the main power supply of the production control sewing machine is turned on;

Fig. 6 is a flowchart showing processing related to planning information performed before sewing starts in the processing of Fig. 5;

7 is a front view of an operation panel showing an operator ID selection screen;

Fig. 8 is a front view of an operation panel showing a sewing process selection screen;

Fig. 9 is a front view of an operation panel showing a sewing machine ID selection screen.

Symbol Description:

10—Production management sewing machine

20—operation panel (selection mechanism, sewing machine ID input mechanism, personal ID input mechanism)

35—EEPROM (program storage mechanism)

36—Flash memory (information recording medium)

37—read and write device

101—Master Management Device

Detailed ways

(Overall structure of the embodiment of the invention)

Hereinafter, a production control sewing machine 10 according to an embodiment of the present invention will be described based on FIGS. 1 to 9 . FIG. 1 is a block diagram showing a schematic configuration of a production management system 100 employing a production management sewing machine 10 .

(master management device)

As shown in FIG. 1 , the production management system 100 is a system for performing production management in batch units composed of an arbitrary number of sewn products, which are objects to be sewn. This production management system 100 includes: a main management device 101 that generates planning information related to sewing operations that should be executed by the entire group of production management sewing machines 10; Management device 101.

A personal computer or a workstation can be used as the above-mentioned main management device 101 .

Then, the main management device 101 generates plan information, and transmits the plan information to each production-management sewing machine 10 via LAN.

(plan information)

FIG. 2 is a diagram illustrating an example of information content of the schedule information generated by the above-described main management device 101 in a table format. Hereinafter, plan information will be described in detail using FIG. 2 .

The "data version number" in FIG. 2 refers to the version number of the plan information, and when the information content is completely regenerated (not updated), a new number is assigned.

The so-called "management table type code" is a code indicating whether or not the information has been updated.

The so-called "generated meta code" is a code indicating whether the plan information is generated by the main management device 101 or generated (updated) by any one of the production management sewing machines 10 .

The "lot identification code" refers to an identification code assigned to each lot when all kinds of sewn products of a predetermined production number are divided into a plurality of lots. In addition, each lot is classified into each sewn product sewn in the same sewing process (work process).

The "planned number of batches" indicates the scheduled production number of sewn products per batch. The batch planned number of pieces is set separately for each batch.

In FIG. 2 , information related to the sewing process is arranged in columns from "A00 to E00" to "AXX to EXX" for each column. The so-called sewing process is one of a plurality of processes until the sewing of a sewn product is completed.

In other words, in FIG. 2 , the sewing process is shared in the column direction, the lot is shared in the row direction, and process information described later is arranged.

That is, the sewn products of each batch go through a plurality of sewing processes until the end of sewing. In the planning information, the production management is classified into each batch, and on this basis, each batch is also classified into each batch. in a sewing process.

The so-called "process identification code" in each column is a code indicating whether or not the data in each column is data related to any sewing process of a sewn product.

The "sewing machine ID" in each column above is a code indicating whether the sewing process specified by the "process identification code" is assigned to any of the production control sewing machines 10 . In other words, all the production management sewing machines 10 belonging to the production management system 100 are set with unique sewing machine IDs.

In addition, for one type of sewing process identified by the "process identification code", not only one production control sewing machine 10 is allocated, but a plurality of production control sewing machines 10 may be allocated.

The so-called "process information" shown in FIG. 2 is actual performance data showing the progress or completion status of each sewing process of each lot. FIG. 3 is an example of a diagram illustrating in more detail the content of each piece of information assigned to each of the sewing processes described above in a tabular form. Based on FIG. 3 , various information assigned to each production control sewing machine 10 will be described in more detail.

The so-called "completed number" in FIG. 3 indicates the number of completed sewing processes relative to the planned batch number.

The so-called "OP.ID" in FIG. 3 represents an operator ID (personal ID) of an operator engaged in a corresponding sewing process for a corresponding lot. In other words, all operators are identified to have unique operator IDs, and are registered in the master management device.

The so-called "start time" in FIG. 3 indicates the time at which counting of the start time of the sewing operation of the corresponding sewing process is started for the corresponding lot.

The so-called "end time" in FIG. 3 indicates the time when the sewing operation of the corresponding sewing process is completed for the corresponding lot.

The so-called "scheduled end time" in FIG. 3 indicates the target time at which the sewing operation of the corresponding sewing process is completed for the corresponding lot.

The main management device 101 generates plan information in which "sewing machine ID", "OP. ID", "start time" and "end time" in the above items are blank, and provides it to each production management sewing machine 10 via LAN.

In contrast, each production management sewing machine 10 updates the planning information by writing the actual performance data of the corresponding "sewing machine ID", "OP. ID", "start time", and "end time", and replies to the main management via LAN. device 101 .

Then, when the main management device 101 receives the updated plan information from each production management sewing machine 10, it integrates the content updated by each production management sewing machine 10 to generate new plan information reflecting it, or generates a new batch identification code or The new planning information of the process identification code is sent to each production control sewing machine again.

By repeating the above-described operations, it is possible to easily grasp the completion status of the entire operations of each generation management sewing machine 10 .

(Production management sewing machine)

FIG. 4 is a block diagram showing a schematic configuration of the production control sewing machine 10 .

Each production management sewing machine 10 includes: a sewing machine motor 11, which serves as a driving source for the up-and-down movement of the needle bar holding the machine needle; Needle bar; unillustrated cloth feeding mechanism; unillustrated thread adjustment block device; thread cutter driving solenoid 12, which drives the thread cutter for cutting the sewing thread after sewing is completed; operating pedal 13, which inputs the starting command of the sewing machine motor 11 through the front pedal, and inputs the driving command of the thread cutter driving solenoid 12 through the rear pedal; the operation panel 20 includes the operation keys 21 for various inputs described later and the specified Display unit 22 for screen display; ROM32, which stores various programs and initial data for executing various processes described later; CPU31, which executes various programs; RAM33, which stores various data related to the processing of CPU31 in Workspace; interface 34, which connects LAN and CPU 31 connected with main management device 101; EEPROM 35, which is used as a plan storage mechanism for storing plan information received from main management device 101 via communication mechanism, that is, LAN; flash memory card 36, which It is used to provide various setting data required for sewing or production management to the sewing machine; and the read/write device 37 .

(Various handling of production control sewing machines)

Fig. 5 is a flow chart showing all the processes performed after the main power supply of the production control sewing machine 10 is turned on, and Fig. 6 is a flowchart showing the processes related to the planning information performed before the start of sewing in all the above-mentioned processes. flow chart.

Each of the processes described above is performed by the CPU 31 of the production control sewing machine 10 executing various predetermined programs in the ROM 32 .

First, when the main power is turned on, the CPU 31 performs operation control to display an operator ID selection screen on the display unit 22 of the operation panel 20 (step S1 ).

FIG. 7 is a front view of the operation panel 20 displaying an operator ID selection screen. On this operator ID selection screen, the newly selected operator ID and other candidate operator IDs are displayed. Other candidate operator IDs are registered in the flash memory card 36, read from there, and displayed.

At this time, any one of the plurality of operation keys 21 on the operation panel 20 functions as a selection key for another candidate operator ID, and the other operation keys function as determination keys.

Then, when an operator ID is selected by key operation of the operation keys 21 , the CPU 31 registers the selected operator ID in the EEPROM 35 . That is, in the process of step S1, the operation panel 20 functions as a personal ID input means.

Next, the CPU 31 judges whether or not the pedal 13 has been stepped forward (step S2 ), and when the pedal has not been stepped forward, the process proceeds to step S3 shown in FIG. 6 .

In step S3 , when the plan information has already been read from the main management device 101 , it is determined whether or not a change in the sewing process has been instructed to be input through the predetermined operation key 21 of the operation panel 20 . Then, when the change of the sewing process has not been input, the processing is advanced to step S5, and when it has been input, the processing is advanced to step S4.

In step S4, CPU31 performs operation control which displays the sewing process selection screen on the display part 22 of the operation panel 20, and performs the process which receives the selection input of a sewing process from the operation key 21. In other words, in the processing of this step, the operation panel 20 functions as a selection mechanism.

Fig. 8 is a front view of the operation panel 20 displaying a sewing process selection screen. In this sewing process selection screen, a lot identification code (for example, K001-25790B) and a process identification code (for example, SL-IN) are displayed with "/" as a separator, and all the data stored in EEPROM35 are displayed. The unfinished sewing process in the process identification code of . The operator specifies the object to be sewn based on the lot identification code and the process identification code displayed on the selection screen.

At this time, any one of the plurality of operation keys 21 of the operation panel 20 functions as a selection key of the process identification code, and the other operation keys function as determination keys.

And when the sewing process is selected by the key operation of the operation key 21, CPU31 will register the process identification code selected in EEPROM35, and will make a process progress to step S5.

In step S5, the CPU 31 determines whether or not an instruction to acquire new plan information from the master management device 101 has been input through the operation key 21, and if not input, the process proceeds to step S7. In addition, when it has already been input, the process proceeds to step S6, and after acquiring new plan information from the main management device 101 and storing it in the EEPROM 35, the process proceeds to step S7.

In step S7 , CPU 31 judges whether an instruction to transmit schedule information in EEPROM 35 to main management device 101 is input via operation key 21 , and if not input, the process proceeds to step S9 . In addition, when it has been input, the process advances to step S8, and after outputting the plan information in EEPROM35 to the master management apparatus 101 via LAN, it advances a process to step S9.

In step S9 , the CPU 31 judges whether or not an instruction to execute time collation has been input through the operation keys 21 , and if not, the process proceeds to step S11 . In addition, when it has already been input, the process advances to step S10.

In step S10 , the CPU 31 performs operation control of displaying a time comparison screen on the display unit 22 of the operation panel 20 . On this time comparison screen, the currently set year, month, day and time are displayed on the display unit 22 . Furthermore, the plurality of operation keys 21 function as correction keys for inputting these corrections, and the other operation keys function as confirmation keys.

Then, when the current time is input by key operation of the operation keys 21, the CPU 31 updates the current time of the clock unit included in the CPU 31 to the input time, and then proceeds to step S11.

In step S11, the CPU 31 judges whether or not an instruction to input the sewing machine ID has been input through the operation keys 21, and if not, proceeds to step S2 (judgment of operation pedal input) shown in FIG. 5 .

In addition, when it has already been input, the process advances to step S12. Fig. 9 is a front view of the operation panel 20 showing a sewing machine ID selection screen. On the sewing machine ID selection screen, candidate sewing machine IDs are displayed one at a time. Candidate sewing machine IDs are registered in the flash memory card 36, read from there, and displayed.

At this time, any one of a plurality of operation keys 21 of the operation panel 20 functions as a selection key for other sewing machine IDs, thereby scrolling and displaying one other candidate sewing machine ID at a time in order, and by the operation of the determination key key 21 to confirm. That is, in the process of step S12, the operation panel 20 functions as a sewing machine ID input means.

Then, when the sewing machine ID is selected by key operation of the operation key 21, the CPU 31 registers the selected sewing machine ID in the EEPROM 35 .

In addition, the sewing machine ID input in the above-mentioned step S12 is processed for a sewing machine whose sewing machine ID has not been registered in EEPROM35 or a sewing machine whose sewing machine ID has been registered in EEPROM35 but needs to be changed. Generally, as long as the sewing machine ID is registered once in EEPROM35, it is not necessary. If it is judged as NO in step S11, it directly proceeds to step S2.

Then, after acquiring new plan information from the main management device 101 and storing it in the EEPROM 35, the process proceeds to step S7.

Then, the process returns to step S2 (judgment of pedal operation input) shown in FIG. 5 .

On the other hand, in step S2, when the forward stepping of the operation pedal 13 is detected, the CPU 31 starts the sewing machine motor 11 to start sewing (step S13).

Next, the CPU 31 determines whether there is an input of stepping back of the operation pedal 13 (step S14). If there is no input, the process returns to step S13 to continue sewing. If there is an input, the process proceeds to step S15.

In step S15 , the CPU 31 activates the thread cutter driving solenoid 12 to cut the sewing thread by moving the thread cutter.

Next, when the thread trimming process is performed, the CPU 31 executes a process of writing actual result data into the plan information (step S16). In other words, the CPU 31 executes processing as plan updating means.

The actual record data referred to here refers to an operator ID, a sewing machine ID, a start time, an end time, and the number of completions.

The processing will be described in detail with reference to FIG. 3 again.

Thread trimming means in principle the end of a sewing operation of a sewn product. Therefore, if carry out thread trimming process, then CPU31 from the sewing process that the process of step S3 has selected, the batch and sewing process in the specific planning information, and for corresponding batch or process, execute write operator ID and sewing machine ID processing.

Moreover, CPU31 performs the process which adds 1 to "the completion number" in the corresponding process information from the sewing process selected by the process of step S3.

Moreover, when the result of the addition processing of the said completion number shows the 1st thing, CPU31 refers to the current time, and performs the process which records this time in the "start time" in the said process information. In addition, in this case, strictly speaking, a time later than the start time is recorded, so the above-mentioned processing may be executed when the operation pedal 13 is stepped forward.

In addition, when the result of the addition process of the said completed number agrees with the lot plan number, CPU refers to the current time, and performs the process which records this time in the "end time" in the said process information.

That is, the schedule information in the EEPROM 35 is updated by the processing in step S16.

(Effect of embodiment)

According to the above-mentioned production management sewing machine 10, since the plan information provided from the main management device 101 by using the sewing machine 10 is used, various actual performance data are added and updated, and the updated plan information is output to the main management device 101. It is not necessary to leave the sewing machine 10 to perform input work to the terminal device, so that the work efficiency can be maintained high, and the main management device can grasp the progress status or completion status of the sewing work.

In addition, when performing production management, another terminal device other than the sewing machine is not required, so the equipment cost can be reduced.

In addition, since the actual performance data includes data indicating the number of completed pieces of sewn products of the sewing process in the current batch, the start time or the end time of the sewing process in a batch, it can be obtained by returning to the main management The updated plan information of the device 101 grasps the progress of each lot in more detail.

In addition, since the updated plan information includes the operator ID of the worker performing the sewing work and the sewing machine ID of the sewing machine performing the sewing work, it is possible to more specifically grasp the distribution of each lot in units of sewing machines. The flow of a condition or job.

In addition, since the CPU 31 of the above-mentioned production management sewing machine 10 executes thread trimming, it adds up the number of pieces completed, and refers to the timer to process the start time or end time and update the plan information, so the operator does not need to input these items one by one. , so that the complexity can be eliminated and the work efficiency can be improved.

In addition, since the above-mentioned production management sewing machine 10 utilizes the LAN as the information communication mechanism to transmit and receive planning information with the main management device 101, it is possible to quickly perform mutual transmission of planning information and grasp sewing operations in real time. status of progress or completion.

(other)

In the above-described embodiment, each production management sewing machine 10 transmits and receives planning information to and from the main management device 101 via a LAN, but any mechanism that can transfer information may be used. For example, a read/write device 37 for the flash memory 36 may also be provided in the main management device 101 , and plan information may be transmitted and received via the flash memory 36 . This eliminates the need for equipment such as a communication network, thereby reducing equipment costs.

In addition, instead of the setting process of the sewing process in step S3, a barcode reader may also be installed on the sewing machine 10 at the same time, and a barcode may be added to each lot that becomes the work target, and the barcode may be read by reading the barcode before sewing starts. , the batch identification code of the batch to be processed can be read. In this case, the sewing process cannot be specified, but it can be grasped that the sewing operation of any batch is currently being performed on any production control sewing machine, and selection or input of codes is unnecessary.

In addition, in the above-mentioned production management sewing machine 10, although the thread trimming operation is started as the writing process of the actual record data, for example, a configuration may be adopted in which an instruction to execute the writing of the actual record data is input from an operation key or a dedicated button.

In addition, in this case, it is not limited to each sewn product, and a configuration may be adopted in which an operator inputs an instruction when the sewing process in one lot is completed.

In addition, during the sewing operation, the scheduled end time in the plan information may be specified from the sewing process selected in the process of step S3, and the operation control may be performed to display the scheduled end time on the display unit of the operation panel 20. Thereby, the operator can grasp the scheduled end time and perform the work, thereby preventing unexpected transition of the scheduled time and improving the completion rate.

Claims (8)

1. A sewing machine, which is provided to a main management device that manages the production of various sewn products in units of batches, and collects actual performance data for each sewing process of each batch to generate plan information. The actual performance data of the sewing process performed in batches, characterized in that, It includes: a plan storage mechanism, which reads and stores plan information from the main management device; a selection mechanism for selecting and inputting any one of the sewing processes in the batches included in the planning information; a plan update unit that writes the actual performance data into the plan information stored in the plan storage unit when the selected sewing process is carried out; and an output means for externally outputting the plan information stored in the plan storage means to the main management device. 2. The sewing machine according to claim 1, wherein: The plan updating means includes, as the actual result data, data indicating the number of completed sewn products of the sewing process. 3. The sewing machine according to claim 1, wherein: The plan updating means includes, as the actual performance data, data indicating at least one of a start time or an end time of the sewing process in one lot. 4. The sewing machine according to claim 1, wherein: An information communication unit is provided for reading in the plan information and outputting it to the outside. 5. The sewing machine according to claim 1, wherein: There is a personal ID input mechanism which inputs or selects the personal ID of the person engaged in the specific sewing operation, The plan update mechanism writes the personal ID into the plan information. 6. The sewing machine according to claim 5, wherein: A sewing machine ID input mechanism is provided for inputting or selecting the inherent sewing machine ID of the sewing machine, The plan updating means writes the sewing machine ID in the plan information. 7. The sewing machine according to claim 1, wherein: A sewing machine ID input mechanism is provided for inputting or selecting the inherent sewing machine ID of the sewing machine, The plan updating means writes the sewing machine ID in the plan information. 8. The sewing machine according to claim 3, wherein: A display means is provided for displaying the scheduled completion time set for each sewing process of each batch included in the plan information.

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