JP2003175288A - Controller of sewing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a controller of a sewing machine making it possible to efficiently store into memory the information needed for displaying a plurality of parts as candidates for malfunctioning parts related to various malfunctions of the sewing machine and to reduce the capacity of the memory. <P>SOLUTION: The sewing machine controller 30 has a flash memory 35 including a first table storing a plurality of parts that can cause a plurality of kinds of malfunctions, in such a way that the parts are related to a plurality of pieces of identification information, and a second table storing the plurality of pieces of identification information corresponding to the plurality of parts that can cause the plurality of kinds of malfunctions of the sewing machine. Thus, even if the same candidate for malfunctioning is related to a plurality of malfunctions, pieces of information such as the display data for the candidates will not be stored in an overlapping manner in the flash memory 35; the malfunctions and the plurality of candidates for the malfunctioning parts related to the malfunctions can be efficiently stored in the flash memory 35. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewing machine control device, and more particularly to each of a plurality of types of abnormal states.
The present invention relates to information that can be efficiently stored in a memory for displaying a plurality of parts that may cause each abnormal state.

[0002]

2. Description of the Related Art Conventionally, when some abnormality occurs in a sewing machine and an abnormal state is detected, the occurrence of the abnormal state is displayed on a display of an operation panel. The operator confirms the display and investigates the parts that may cause the abnormal state in order to eliminate the abnormal state.

Further, in order to allow the operator to more easily understand which component is causing the abnormal state, the abnormal state is displayed in addition to the abnormal state occurrence display. In some cases, the display data of a plurality of components (hereinafter referred to as abnormality candidate components) that may be a factor are also displayed. By investigating the plurality of displayed abnormality candidate parts, the operator can easily find out the cause of the abnormal state. In this case, for each of the plurality of types of abnormal states, display data of a plurality of abnormal candidate parts in each abnormal state are associated and stored in the memory.

[0004]

In recent years, the types of abnormal states that occur and the number of abnormal candidate parts that correspond to each of these plural types of abnormal states tend to increase with the complexity of the structure and control of sewing machines. It is in. Therefore, as described above, for each of a plurality of types of abnormal states, when the display data of a plurality of abnormal candidate parts of each abnormal state are stored in the memory in association with each other, the same abnormal candidate part is associated with a plurality of abnormal states. In this case, the display data of the abnormality candidate parts will be stored in the memory in duplicate for each abnormal state, the information stored in the memory will increase, and a large capacity memory is required. It may be. An object of the present invention is to provide a control device for a sewing machine in which information for displaying a plurality of abnormality candidate parts in each abnormal state can be efficiently stored in a memory, to reduce the memory capacity, and the like. is there.

[0005]

According to a first aspect of the present invention, there is provided a control device for a sewing machine, an operating means for inputting various commands, a display means including a display capable of displaying a plurality of character strings, and a sewing machine control. In a control device for a sewing machine including control means for controlling a target device, each of a plurality of types of abnormal states occurring in the sewing machine and a plurality of parts that may be a cause of the abnormal state are stored in association with each other. A first table that stores a plurality of components that may be a cause of the plurality of types of abnormal states in association with a plurality of pieces of identification information, and a plurality of types of abnormal states of the sewing machine. It is characterized by comprising a first storage means including a second table storing a plurality of pieces of identification information corresponding to a plurality of parts which may cause an abnormal state.

In the first storage means, each of a plurality of types of abnormal states occurring in the sewing machine and a plurality of abnormal candidate parts for the abnormal state are stored in association with each other. In the first storage means, in the first table, a plurality of abnormality candidate parts displayed on the display means in any abnormal state are associated with a plurality of pieces of identification information (for example, bit data). In the second table, a plurality of types of abnormal states are associated with a plurality of pieces of identification information corresponding to a plurality of abnormal candidate parts for each abnormal state.

When an abnormal state occurs, a plurality of pieces of identification information corresponding to a plurality of abnormal candidate parts for the abnormal state are read from the second table by the control means. Further, the abnormality candidate parts corresponding to these pieces of identification information are read from the first table by the control means, and the control means causes the display of the display means to display the occurrence of the abnormal state and display the information on the abnormality candidate parts. . Therefore, even when the same abnormal candidate part is associated with a plurality of abnormal states, information such as display data of the abnormal candidate parts is not redundantly stored for each of a plurality of abnormal states. .

According to a second aspect of the present invention, there is provided a sewing machine control device according to the first aspect.
In the invention, it is characterized in that it has a second storage means for storing in advance the abnormality occurrence display data for displaying the occurrence of each of the plurality of kinds of abnormal states on the display. Therefore, when an abnormal state occurs, the first
The abnormality occurrence display data is read into the control means from the second storage means other than the storage means, and the occurrence of the abnormal state is displayed on the display.

A control device for a sewing machine according to claim 3 is the control device according to claim 2.
In the invention, the second storage means stores in advance component name display data for displaying on the display the names of the plurality of components that may cause the abnormal state. Therefore, when a certain abnormal state occurs, when a plurality of abnormality candidate parts corresponding to the abnormal state are read by the control means from the first and second tables of the first storage means, those abnormality candidate parts are read from the second storage means. The component name display data of the abnormality candidate component is read by the control means, the occurrence of the abnormal condition is displayed on the display, and the component name of the abnormality candidate component is displayed.

According to a fourth aspect of the present invention, there is provided a sewing machine control device according to the first aspect.
The invention according to any one of items 1 to 3 is characterized in that the first storage means comprises a memory capable of rewriting stored information. Therefore, the information stored in the first storage means can be changed or other information can be added according to the information input from the operation means or the floppy disk drive connected to the control means.

According to a fifth aspect of the present invention, there is provided a sewing machine control device according to the first aspect.
The invention according to any one of claims 1 to 4 is characterized in that the second storage means comprises a memory capable of rewriting stored information. Therefore, the information stored in the second storage means can be changed or other information can be added according to the information input from the operation means or the floppy disk drive connected to the control means.

[0012]

Embodiments of the present invention will be described below. In this embodiment, the present invention is applied to a multi-head sewing machine including three embroidery sewing machines. First,
The multi-head sewing machine M will be described. As shown in Figure 1,
A sewing machine support plate 2 having a predetermined length in the left-right direction is provided on the rear side of the upper surface of the base frame 1 extending in the left-right direction, and a support frame extending in the left-right direction is provided at the rear end of the sewing machine support plate 2. 3 are erected. Multi-head sewing machine M
, Three multi-needle type embroidery sewing machines M1 to M3 are arranged in parallel in the left-right direction at predetermined intervals.

The three embroidery sewing machines M1 to M3 are provided on the support frame 3 in the left-right direction and are arranged side by side at predetermined intervals.
6 to 6 and cylindrical bed portions 7 to 9 in which a thread cutting mechanism (not shown) and the like are incorporated, respectively. The rear ends of the beds 7 to 9 are respectively supported by the base frame 1 at the position of the front end of the sewing machine support plate 2. Needle bar cases 20 are respectively supported at the front ends of the head sections 4 to 6 so as to be movable in the left-right direction, and 12 needle bars (not shown) are vertically movable in the needle bar case 20. 1 in the direction
The sewing needles 21 are attached to the lower ends of the needle bars, which are supported in rows. Each needle bar case 20 has 12 scales 2
2 is swingably supported. Each needle bar case 20
Needle bar changing motor 54 (see FIG. 2) when changing the needle thread
Are driven to move in the left-right direction all at once. Each head part 4
Each of ~ 6 is also provided with a needle bar jump mechanism (not shown) for forcibly jumping the needle bar to the upper limit position.

A work table 13 is horizontally arranged in front of the sewing machine support plate 2, and a pair of auxiliary tables 14 and 15 are also provided on both left and right sides of the work table 13. On the upper surfaces of the work table 13 and the auxiliary tables 14 and 15, a movable frame 16 having a rectangular frame shape in plan view extending in the left-right direction is provided.
Is mounted on the movable frame 16, and each embroidery sewing machine M1 to
Cloth holding frames 17 corresponding to M3 are detachably attached.

A drive frame portion 16a is provided at the right end of the movable frame 16, and the movable frame 16 is moved in the X-axis direction (left-right direction) by an X-axis drive motor 56 (see FIG. 2) via the drive frame portion 16a. It is driven to move. A drive frame portion 16b is also provided at the left end of the movable frame 16, and the movable frame 16 includes the drive frame portion 16a,
It is moved and driven in the Y-axis direction (front-back direction) by a Y-axis drive motor 58 (see FIG. 2) via 16b. Therefore, the movable frame 16 is configured to be movable on the XY plane, and the origin position of the movable frame 16 on the XY plane is determined by the X-axis origin sensor 6
It is detected by the 0, Y-axis origin sensor 61 (see FIG. 2). The X-axis drive motor 56 and the Y-axis drive motor 58 are respectively stepping motors.

An operation panel 18 (operation means) for inputting various commands is provided on the rear side of the auxiliary table 15, and a plurality of lines of character strings relating to embroidery sewing can be displayed on the operation panel 18. A liquid crystal display 19 and a floppy disk drive 20 (FDD) for rewriting information stored in a flash memory 35 described later are provided.

Next, regarding the control system of the multi-head sewing machine M,
This will be described with reference to the block diagram of FIG. A sewing machine control device 30, which controls the entire multi-head sewing machine, includes an operation panel 18,
Display 19 and control unit 31 (control means) for controlling various control target devices of multi-head sewing machine M
It has and. The control unit 31 is a CPU
32, ROM 33, RAM 34, rewritable flash memory 35, communication interface 36 (communication I
/ F) and the like, and an input / output interface (not shown) connected to the microcomputer via a bus. Communication I / F3
An embroidery data processing device 37 is connected to 6, and the control unit 31 can receive embroidery data via the embroidery data processing device 37.

The control unit 31 includes a drive circuit 41 for the needle bar jump solenoid 40 for the needle bar jump mechanism and a presser foot drive solenoid 42 for retracting the presser foot for each head section 4-6. Drive circuit 43 for
And an upper thread breakage sensor 44 for detecting a thread breakage of the upper thread, respectively. Further, the control unit 31 includes a drive circuit 51 for the sewing machine motor 50 and a pulse generator that outputs an encoder signal consisting of 1000 pulse signals per revolution of a disk encoder provided on the sewing machine spindle (not shown). 52 and a spindle origin sensor 53 that outputs one spindle synchronization signal per revolution of the disk encoder.
Are connected.

Further, a drive circuit 55 for the needle bar changing motor 54, an X-axis drive motor 56, and a Y-axis drive motor 58.
Drive circuits 57 and 59, and X-axis origin sensor 60 and Y
A shaft origin sensor 61, a drive circuit 63 for a thread cutting motor 62 for a thread cutting mechanism that simultaneously cuts an upper thread and a lower thread,
The operation panel 18, FDD 20, etc. are also connected to the control unit.

The ROM 33 has a drive control control program for driving the motors 54, 56, 58 and 62 based on an encoder signal from the pulse generator 52, a spindle synchronization signal from the spindle origin sensor 53, and an abnormality described later. A control program for part detection control and the like are stored. RAM34
Is provided with various memories such as an embroidery data memory 34a for storing embroidery data received from an external embroidery data processing device 37. As will be described later in detail, each of the four types of abnormal states and a plurality of abnormal candidate parts for each abnormal state are stored in the flash memory 35 in association with each other, and further, when the abnormal state occurs. Various display data are also stored.

Next, when an abnormal state occurs in the multi-head sewing machine M, various stored information stored in the flash memory 35 (first storage means) for displaying the abnormal state on the display 19 will be described. This will be described with reference to FIGS. In the present embodiment, when four types of abnormal states occur, that is, the sewing machine motor 50 is abnormal, the needle thread break sensor 44 is abnormal, the movable frame 16 cannot move in the X direction, and the movable frame 16 cannot move in the Y direction. In FIG.
Messages such as (a) to (d) are displayed respectively.
As shown in FIG. 3, the flash memory 35 stores tables TB1 to TB4 relating to the abnormal state display. These tables TB1 to TB4 will be described in order.

As shown in FIG. 4, the table TB1 (first
The table) is a table for storing the 16 abnormality candidate parts of the above-mentioned four types of abnormal states in association with 16 bits B15 to B0 (identification information), respectively. Here, in the table TB1, 16 abnormality candidate parts are associated with 16 bits B15 to B0 by using the part name display data. These component name display data are for displaying on the display 19 the name of the abnormality candidate component corresponding to the abnormal state when a certain abnormal state occurs.

As shown in FIGS. 5 and 6, table TB2
The (second table) is a table that stores, for each of the four types of abnormal states, a plurality of bits corresponding to a plurality of abnormal candidate parts in each abnormal state. Each table TB2 is a 2-byte storage area. Remembered Also,
As shown in FIG. 7, the table TB3 has four types of abnormal states and addresses A1 to A4 shown in FIG. 5 of the table TB2.
Is an address table that associates

As shown in FIG. 6, flag data of 0 or 1 is stored in the bits B15 to B0 of the table TB2 corresponding to each abnormal state. In the table TB2 of a certain abnormal state, the flag data of a certain bit is 1
If it is, it indicates that the abnormality candidate part to which the bit corresponds in the table TB1 corresponds to the abnormality state. If the flag data of a bit is 0, the abnormality candidate to which the bit corresponds. Indicates that the part does not correspond to the abnormal condition.

As shown in FIG. 7, in the abnormal state of the main motor abnormality, the address A1 designated in the table TB3 is set.
Corresponding table TB2, and as shown in FIG. 6A, in this table TB2, bits B15,
B12 to B10 are 1. At this time, the four bits B15, B12 to B in the table TB1 of FIG.
The abnormality candidate parts corresponding to 10, that is, the four parts of the main control board, the sewing machine motor drive board, the sewing machine motor, and the sewing machine motor fuse correspond to the abnormal state of the main motor abnormality.

Similarly, as shown in FIG. 6B, three bits B15 to B15 are set in the abnormal state of the needle thread break sensor abnormality.
13, that is, the three parts of the main control board, the upper thread break sensor cable, and the upper thread break sensor correspond to each other. Figure 6
As shown in (c), the six bits B15, B7, B5 are included in the abnormal state in which the movable frame 16 cannot move in the X direction.
B4, B2, B0, that is, a main control board, an X-axis drive motor, an XY motor drive board, an X motor control cable,
Six parts, the X motor fuse and the XY motor power fuse, correspond.

As shown in FIG. 6D, the movable frame 16 is Y
6 bits B1 for an abnormal condition that is not movable in the direction
5, B7, B5, B4, B2, B0, that is, six parts, namely, a main control board, a Y-axis drive motor, an XY motor drive board, a Y motor control cable, a Y motor fuse, and an XY motor power fuse. . As shown in FIG. 8, the table TB4 is a table in which four types of abnormal states are associated with abnormal occurrence display data for displaying the occurrence of each abnormal state on the display 19.

In these four types of abnormal states, for example, the main control board is an abnormality candidate part corresponding to all the abnormal states. However, the component name display data of the main control board is not stored corresponding to every abnormal state one by one, but as shown in FIG.
5 is stored only in the table TB1 in association with No. 5, so that the component name display data of the main control board is not stored redundantly. This is because XY motor drive board and X
The same applies to the abnormality candidate parts for two types of abnormal states, such as the Y motor power fuse. Note that the tables TB1 to TB4 are stored in a rewritable flash memory, and the information in the tables TB1 to TB4 can be changed or the information in the tables TB1 to TB4 can be updated by the information input from the operation panel 18 or the FDD 20. You can add various information.

The above-mentioned four kinds of abnormal states are detected by executing abnormal portion detection control for detecting in which portion the abnormality occurs in the multi-head sewing machine M. Hereinafter, this abnormal part detection control will be described with reference to FIG.
A description will be given based on the flowchart. However, S in the figure
i (i = 10,11,12 ...) Represents each step. When the worker confirms some abnormality in the multi-head sewing machine M during the embroidery sewing work, the multi-head sewing machine M is temporarily stopped, and then the worker inputs a command to execute the abnormal portion detection control from the operation panel 18. Then, the control unit 31 receives this command, and the control unit 31 executes the abnormal part detection control.

First, the sewing machine motor 50 is driven (S1
0), the encoder signal is read from the pulse generator 52 (S11), and when an abnormality is detected in the sewing machine motor 50 (S12: No), the sewing machine motor 50 is determined to be abnormal (S19), and the sewing machine motor of FIG. Move to the error display routine. When it is determined that the sewing machine motor 50 is normal (S12: Yes), an abnormality is detected in the needle thread break sensor 44 of any of the three embroidery sewing machines M1 to M3 (S12).
13: No), after detecting which one of the embroidery sewing machines M1 to M3 the upper thread breakage sensor 44 has an abnormality (S20),
The routine proceeds to the routine for displaying the upper thread breakage sensor abnormality in FIG.

When all the upper thread breakage sensors 44 of the embroidery sewing machines M1 to M3 are normal (S13: Yes), the movable frame 16 is moved and driven by the X-axis drive motor 56 to the X-direction origin position (S14). . Here, the X-axis origin sensor 60 is OF
When it remains F (S15: No), the movable frame 16 is X.
The movable frame 1 of FIG. 13 is determined to be immovable in the direction (S21).
6 shifts to a routine for displaying an abnormality in which 6 cannot move in the X direction. When the X-axis origin sensor 60 is turned on (S
15: Yes), the movable frame 16 is moved to Y by the Y-axis drive motor 58.
It is driven to move to the direction origin position (S16). Here, when the Y-axis origin sensor 61 remains OFF (S17: N
o), it is determined that the movable frame 16 cannot move in the Y direction (S2
2), the process moves to the abnormal display routine in which the movable frame 16 in FIG. 14 cannot move in the Y direction. Y-axis origin sensor 61 is O
When it becomes N (S17: Yes), the display 19
A message prompting a visual inspection is displayed on (S18).

If any of the four abnormal states is detected by the abnormal part detection control, the above-mentioned table TB1 is set.
~ TB4, each abnormal state is displayed on the display 19 as shown in Figs. 9 (a) to 9 (d) by the respective abnormal state display routines shown in Figs. 11 to 14. Figure 1
When it is determined that the sewing machine motor 50 is abnormal by the abnormal part detection control of 0, as shown in FIG. 11, first, the abnormality occurrence display data of the sewing machine motor is read from the table TB4 of FIG. 8 ( S30). Next, table TB
2 and TB3, bits B15 to B0 regarding the abnormal state of the sewing machine motor abnormality shown in FIG. The name display data is read from the table TB1 in FIG. 4 to create list display data of abnormality candidate parts (S31). Then, as shown in FIG. 9A, a message indicating the occurrence of the abnormality and a list of the names of the abnormality candidate parts are displayed and output on the display 19 (S32).

When it is determined by the abnormal portion detection control that the needle thread breakage sensor 44 of any of the three embroidery sewing machines M1 to M3 is abnormal, first, as shown in FIG.
Abnormality occurrence display data of the upper thread breakage sensor abnormality is read from the table TB4 of FIG. 8 (S40). Next, table TB
2 and TB3, bits B15 to B0 regarding the abnormal state of the upper thread breakage sensor abnormality shown in FIG. 6B, in which the flag data is 1, are detected, and the abnormality candidate parts corresponding to those bits are detected. 4 is read from the table TB1 of FIG. 4 to create list display data of abnormality candidate parts (S41). Then, as shown in FIG. 9B, the message indicating the occurrence of the abnormality and the list of the names of the abnormality candidate parts are displayed and output on the display 19 (S42).

By the abnormal part detection control, the movable frame 16 is moved to the X position.
If it is determined that the movable frame cannot move in the X direction, as shown in FIG. 13, first, the abnormality occurrence display data when the movable frame cannot move in the X direction is read from the table TB4 in FIG. 8 (S50). ). Next, from the tables TB2 and TB3, the bits B15 to B0 regarding the abnormal state in which the movable frame is unable to move in the X direction shown in FIG. 6C and the flag data being 1 are detected, and those bits are detected. The component name display data of the corresponding abnormality candidate component is read from the table TB1 of FIG. 4, and the list display data of abnormality candidate components is created (S
51). Then, as shown in FIG. 9C, the message indicating the occurrence of the abnormality and the list display data of the abnormality candidate parts are displayed and output on the display 19 (S52).

By the abnormal portion detection control, the movable frame 16 becomes Y
If it is determined that the movable frame cannot be moved in the Y direction, as shown in FIG. 14, first, the abnormality occurrence display data when the movable frame cannot be moved in the Y direction is read from the table TB4 in FIG. 8 (S60). ). Next, from the tables TB2 and TB3, the bits B15 to B0 regarding the abnormal state in which the movable frame is unable to move in the Y direction shown in FIG. 6D and the flag data being 1 are detected, and these bits are detected. The component name display data of the corresponding abnormality candidate component is read from the table TB1 of FIG. 4, and the list display data of abnormality candidate components is created (S
61). Then, as shown in FIG. 9D, the message indicating the occurrence of the abnormality and the list display data of the abnormality candidate parts are displayed and output on the display 19 (S62).

According to the sewing machine controller 30 described above, the following effects can be obtained. 1) In the table TB1, 16 kinds of abnormality candidate parts corresponding to any of the four kinds of abnormal states are associated with 16 bits B15 to B0 by the parts name display data, respectively, and further, in the table TB2. In each of the four types of abnormal states, flag data of 1 is stored in a plurality of bits corresponding to a plurality of abnormal candidate parts for each abnormal state, and these abnormal candidate parts and bits are associated with each other.

Therefore, the component name display data of each of the 16 types of abnormality candidate parts is stored only in the table TB1, and even when the same abnormality candidate part is associated with a plurality of abnormal states, the abnormality is detected. Duplicate part name display data of candidate parts for each abnormal state
No need to remember in 5. That is, each abnormal state and a plurality of abnormal candidate parts for the abnormal state can be associated and efficiently stored in the flash memory 35. Therefore, the flash memory 35 can be downsized, which is advantageous in manufacturing cost of the sewing machine controller 30.

2) Since the rewritable flash memory 35 is used as the first storage means including the tables TB1 to TB4, the information in the tables TB1 to TB4 can be changed by the information input from the operation panel 18 or the FDD 20. , Information can be added to the tables TB1 to TB4. 3) Since information on each of the abnormal states and a plurality of abnormal candidate parts can be easily grasped from the information of the tables TB1 and TB2, preparation of materials such as a repair manual becomes extremely easy.

Next, a description will be given of a modified form in which various modifications are made to the above embodiment. 1] In table TB1, a plurality of abnormality candidate parts are stored in association with a plurality of codes as identification information, and for each abnormal state, in table TB2, a plurality of abnormality candidate parts corresponding to the plurality of abnormality candidate parts in the abnormal state are stored. The code may be stored. 2] The first storage means including the tables TB1 to TB4 is R
It may be the OM 33 or another rewritable memory such as an EEPROM.

3] As shown in FIG. 15, the codes C15 to C0 indicating 16 abnormality candidate parts are set to bits B15 to B0.
And a table TB5 (corresponding to the first table) stored in association with the table TB2 and TB3 of the above-described embodiment.
1 is stored in the first storage means, while the table TB4 storing the abnormality occurrence display data of the above-described embodiment is stored in the second storage means different from the first storage means.
6, a table TB in which the component name display data of the abnormality candidate component is stored in association with the codes C15 to C0.
6 may be stored in this second storage means.

If the first storage means is composed of a rewritable memory and the second storage means is composed of ROM, the information input from the operation panel 18, FDD 20, etc.
The tables TB2 and TB5 can be changed or new information can be added, while the abnormality occurrence display data and the part name display data stored in the tables TB4 and TB6 cannot be changed. You can Of course, both the first and second storage means may be composed of rewritable memories,
Both may be configured by ROM.

4] In the above embodiment, in the table TB1, the identification information is associated with the abnormality candidate component by associating the identification information with the component name display data of the abnormality candidate component. It is also possible to associate the identification information with the abnormality candidate component by associating the data of (1) with the image data of the abnormality candidate component. In these cases, when a certain abnormal state occurs, the display 19 displays the abnormality occurrence of the abnormal state, blinks the positions of a plurality of corresponding abnormality candidate parts, and displays a plurality of abnormality candidate parts. Images can be split and displayed.

5] In the above embodiment, the abnormal part detection control is performed by the operator inputting a command to execute the abnormal part on the operation panel 18. However, during the embroidery sewing work, the abnormal part detection control is performed in parallel with the control. Detection control may be performed, and when an abnormal state is detected, the abnormal state and the corresponding abnormal candidate component may be automatically displayed on the display 19. For example, when the sewing machine motor 50 does not rotate even if the start button of the operation panel 18 is pressed at the start of the embroidery sewing operation, the process of S19 is immediately performed. When the power is turned on, the movable frame 16 is moved and driven to the X-direction and Y-direction origin positions. If the origin is not detected by the origin sensors 60 and 61 at that time, the processing of S21 and S22 is performed.
However, regarding the abnormal state of the needle thread breakage sensor 44, it is necessary to detect the abnormal state by performing the abnormal part detection control by the input of the worker as in the above embodiment.

[0044]

According to the invention of claim 1, in the first table, a plurality of abnormality candidate parts corresponding to any of the abnormal states are respectively associated with a plurality of identification information, and in the second table, Since each of the types of abnormal states is associated with a plurality of pieces of identification information corresponding to the plurality of abnormal candidate parts for each abnormal state, even when the same abnormal candidate part is associated with a plurality of abnormal states. It is not necessary to duplicately store information such as display data of the abnormality candidate parts. That is, each abnormal state and a plurality of abnormal candidate parts for the abnormal state can be associated and efficiently stored in the first storage unit. Therefore, the capacity of the first storage means can be reduced, which is advantageous in manufacturing cost. Furthermore, since it is possible to easily grasp the correspondence between each abnormal state and a plurality of abnormal candidate parts from the information in the first and second tables, it is extremely easy to create a material such as a repair manual.

According to the second aspect of the present invention, the abnormality occurrence display data for displaying the occurrences of a plurality of types of abnormal states on the display are stored in advance in the second storage means different from the first storage means. Therefore, for example, the control unit can be configured such that the first storage unit is composed of a rewritable memory, the second storage unit is composed of a non-rewritable memory, and the abnormality occurrence display data cannot be rewritten. On the contrary, the control device can be configured so that the abnormality occurrence display data can be rewritten, and the degree of freedom in designing the control device is expanded. Other,
The same effect as that of the first aspect can be obtained.

According to the invention of claim 3, since the part name display data of the abnormality candidate part is stored in advance in the second storage means different from the first storage means, like the abnormality occurrence display data, For example, the control device can be configured such that the component name display data cannot be rewritten, or conversely, the control device can be configured such that the component name display data can be rewritten, thus increasing the degree of freedom in designing the control device. In addition, the same effect as that of the second aspect can be obtained.

According to the fourth aspect of the present invention, the first storage means comprises a memory capable of rewriting the stored information, so that the information input from the floppy disk drive, etc.
It is possible to change the storage information of the first storage means or add other information. In addition, the same effect as that of any one of claims 1 to 3 is obtained. According to the invention of claim 5,
Since the second storage means is composed of a memory capable of rewriting the stored information, the stored information in the second storage means can be changed or another information can be added according to the information input from the floppy disk drive or the like. it can. In addition, the same effect as that of any one of claims 1 to 4 can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view of a multi-head sewing machine according to an embodiment of the present invention.

FIG. 2 is a block diagram of a multi-head sewing machine.

FIG. 3 is a diagram showing a memory structure of a flash memory.

FIG. 4 is a chart showing the contents of a table TB1.

FIG. 5 is a diagram showing a structure of a storage area of a table TB2.

FIG. 6 is a data structure diagram showing bit data of a table TB2.

FIG. 7 is a chart showing the contents of a table TB3.

FIG. 8 is a chart showing the contents of a table TB4.

FIG. 9 is a diagram showing contents displayed on a display in an abnormal state.

FIG. 10 is a flowchart of abnormal portion detection control.

FIG. 11 is a flowchart of an abnormality occurrence display routine related to sewing machine motor abnormality.

FIG. 12 is a flowchart of an abnormality occurrence display routine relating to an abnormality in the upper thread breakage sensor.

FIG. 13 is a flowchart of an abnormality occurrence display routine relating to an abnormal state in which the movable frame cannot move in the X direction.

FIG. 14 is a flowchart of an abnormality occurrence display routine relating to an abnormal state in which the movable frame cannot move in the Y direction.

FIG. 15 is a diagram showing the contents of a modified table TB5.

FIG. 16 is a table showing the contents of a modified table TB6.

[Explanation of symbols]

M multi-head sewing machine 18 Operation panel 19 display 30 sewing machine control device 31 Control Unit 33 ROM 35 flash memory

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Claims (5)

[Claims] 1. Operating means for inputting various commands,
In a control device for a sewing machine, which includes a display means including a display capable of displaying a character string of a plurality of lines and a control means for controlling a control target device of the sewing machine, each of a plurality of abnormal states occurring in the sewing machine and its A first storage unit that stores a plurality of components that may be factors that cause an abnormal state in association with each other, and that associates a plurality of components that can be factors that cause the plurality of types of abnormal states with a plurality of pieces of identification information, respectively. First storage means including a stored first table and a second table that stores, for each of a plurality of types of abnormal states of the sewing machine, a plurality of pieces of identification information corresponding to a plurality of parts that may cause the abnormal states. A control device for a sewing machine, comprising: 2. The apparatus according to claim 1, further comprising a second storage unit that stores in advance abnormality occurrence display data for displaying the occurrence of each of the plurality of kinds of abnormal states on a display.
The control device for the sewing machine according to 1. 3. The second storage means stores in advance part name display data for displaying on a display the names of a plurality of parts that may cause the abnormal state. The control device for the sewing machine according to 1. 4. The control device for a sewing machine according to claim 1, wherein the first storage means comprises a memory capable of rewriting stored information. 5. The control device for a sewing machine according to claim 1, wherein the second storage means comprises a memory capable of rewriting stored information.