JP4564311B2 - sewing machine - Google Patents

Description

  The present invention relates to a sewing machine for sewing an embroidery pattern.

  2. Description of the Related Art Conventionally, there is known a sewing machine that sewes a predetermined embroidery pattern on a cloth by moving a sewing needle up and down and moving a holding frame that holds the cloth with respect to the sewing needle in the X and Y directions.

When a new embroidery pattern is set or an already set embroidery pattern is edited in the sewing machine as described above, a touch sensor is provided on the surface so that the embroidery pattern can correspond to various shapes. An input display device is used (for example, see Patent Document 1). That is, in the new setting or editing of an embroidery pattern, for example, for setting an embroidery pattern such as a shape point related to the shape of the embroidery pattern or a needle drop point that is dropped when creating an embroidery pattern. An embroidery pattern set point is designated using an input display device.
JP 2003-117273 A

  By the way, in the conventional input display device, for example, by using direction input buttons for designating eight directions displayed on the display screen, the cursor is moved in a predetermined direction and the embroidery pattern set point is designated. It is supposed to be. For this reason, when the cursor is moved to a predetermined embroidery pattern set point, depending on the location of the embroidery pattern set point, it is necessary to move the cursor in a predetermined direction by repeatedly pressing a plurality of direction input buttons. There is a problem that it takes a long time to specify the embroidery pattern set point and the operation cannot be easily performed.

  An object of the present invention is to provide a sewing machine that can quickly and easily specify an embroidery pattern setting point for setting an embroidery pattern.

Therefore, in order to solve the above-mentioned problem, the invention described in claim 1
Sewing data creation means for creating sewing data relating to the sewing of the embroidery pattern is provided. Based on the sewing data created by the sewing data creation means, the holding frame for holding the cloth and the sewing needle are relative to each other in the XY direction. It is moved to a sewing machine for sewing the embroidery pattern to form a plurality of needle drop point on the fabric by the sewing needle, according to the embroidery pattern in association with the arrangement of the embroidery pattern on the fabric Display means for displaying an embroidery pattern, detection means for detecting a contact position of the display means with respect to the display screen, and the embroidery pattern displayed on the display screen based on the contact position detected by the detection means of the embroidery pattern set point as shape points for specifying the planar shape of, search means for searching for candidate embroidery pattern set points included in the set point candidate search range of the display screen Based on the candidate embroidery pattern set point searched by the searching means, wherein by moving the position of the embroidery pattern set point designating means for setting the shape of the embroidery pattern, XY relative sewing needle holding frame XY moving means for moving in the direction, and the cloth set point corresponding position corresponding to the embroidery pattern set point as the shape point specified by the specifying means without passing through the plurality of needle drop points It is characterized by comprising linear movement control means for controlling the drive of the XY moving means until it faces the sewing needle to move the holding frame substantially linearly.

According to the first aspect of the present invention, the embroidery pattern related to the embroidery pattern is displayed on the display means in association with the arrangement of the embroidery pattern on the cloth, and the predetermined position on the display screen is determined by the operator's finger or the like. When contact is instructed, the contact position is detected by the detecting means. Based on the detected contact position, among the embroidery pattern setting shape points for setting the embroidery pattern displayed on the display screen, candidate embroidery pattern settings included in the set point candidate search range of the display screen The shape point can be searched, and the embroidery pattern setting shape point can be specified by the specifying means based on the searched candidate embroidery pattern setting shape point. In other words, when editing sewing data, the embroidery pattern setting shape point can be specified by touching a predetermined position on the display screen. For example, the configuration is based on the operation of the direction key. In comparison, the embroidery pattern setting shape point can be specified quickly and easily.

According to the invention described in claim 1, based on the embroidery pattern set shape point is specified, substantially the holding frame until it is opposed to the needled setpoint corresponding position of the cloth corresponding to the embroidery pattern set shape point It can be moved linearly. That is, the holding frame can be quickly moved to a predetermined embroidery pattern setting shape point. For example, an operation for confirming the shape of the embroidery pattern actually sewn on the cloth, the sewing sewing operation, etc. It can be done efficiently.

The invention according to claim 2 is the sewing machine according to claim 1 ,
Switching means for switching the function related to linear movement of the holding frame by the linear movement control means to be valid or invalid;
When the function of the linear movement of the holding frame with a linear movement control means is disabled by said switching means, for each point of the specified the embroidery pattern setpoint by the plurality of needle drop point and the designation unit, characterized in that it comprises a set point movement control means for moving the holding frame by controlling the driving of the XY moving means so as to face the set point position corresponding to the fabric on the needle corresponding to those the point It is said.

According to the second aspect of the present invention, it is possible to obtain the same effect as the first aspect of the invention. In particular, the function relating to the linear movement of the holding frame is enabled or disabled by the switching means. It can be switched as appropriate, if the functionality according to the linear movement of the holding frame has been disabled for each point of a plurality of needle drop points and the specified embroidery pattern set point, set point of the fabric corresponding to those the point The holding frame can be moved by the set point movement control means so that the corresponding position faces the sewing needle. Thus, the presence obstacle such as the moving direction of the holding frame, if it is not possible to properly perform linear movement of the holding frame, by switching disable function according to the linear movement of the holding frame, the point every, can be properly moved without those the point obstacle holding frame so as to face the sewing needle setpoint corresponding position of the cloth corresponding to the like gets in the way.

According to the first aspect of the present invention, the embroidery pattern setting shape point can be designated by touching a predetermined position on the display screen. For example, the embroidery pattern setting shape point can be designated based on the operation of the direction key. In comparison, the embroidery pattern setting shape point can be specified quickly and easily.

According to the first aspect of the present invention, the holding frame can be quickly moved to a predetermined embroidery pattern setting shape point. For example, the shape of the embroidery pattern actually sewn on the cloth or the sewing of the sewing machine The operation | movement which confirms the operation | movement etc. which concern on can be performed efficiently.

According to the second aspect of the present invention, when there is an obstacle or the like in the movement direction of the holding frame and the linear movement of the holding frame cannot be properly performed, the function related to the linear movement of the holding frame. by switching the disabled, for each point of a plurality of needle drop points and embroidery pattern setpoint, obstacles can obstruct the holding frame so as to face the sewing needle setpoint corresponding position of the cloth corresponding to those the point It can be moved properly without becoming.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, the scope of the invention is not limited to the illustrated examples.
Here, FIG. 1 is a diagram showing an overall configuration of a sewing machine exemplified as a preferred embodiment to which the present invention is applied.

As shown in FIG. 1, the sewing machine 100 has a holding frame 12 that holds a cloth to be sewn on the needle plate 11, and the holding frame 12 moves relative to the sewing needle 13, thereby holding the holding frame 12. 12 is a so-called electronic cycle sewing machine in which a seam is formed on a cloth held by a cloth 12 to form a predetermined embroidery pattern as a whole.
Here, the direction in which the sewing needle 13 to be described later moves up and down is the Z-axis direction (vertical direction), and one direction orthogonal thereto is the X-axis direction (left-right direction), and both the Z-axis direction and the X-axis direction are The direction perpendicular to the Y axis direction is defined as the Y-axis direction (front-rear direction). The holding frame 12 described above is moved in the X-axis direction and the Y-axis direction.

The sewing machine 100 includes a bed portion 14 provided with a needle plate 11, an arm portion 15 standing from one end of the bed portion 14 and extending in the X-axis direction, a table 16 on which the bed portion 14 is placed, and sewing. A vertical movement mechanism that moves the needle 13 up and down, an XY mechanism that arbitrarily positions the holding frame 12 along the XY plane, and an operation pedal that is provided below the table 16 and that activates the vertical movement mechanism 17, an operation panel 30 that performs various operations relating to sewing of the sewing machine 100, and an operation control means 50 that performs operation control of each of the above-described configurations.
The input display device described above includes an operation panel 30 and an operation control means 50 which will be described later.

The vertical movement mechanism moves up and down the needle bar (not shown) that supports the sewing needle 13 at the distal end of the arm 15, the sewing machine motor 18 that is the vertical movement drive source of the needle bar, and the rotational driving force of the sewing machine motor 18. And a crank mechanism (not shown) for converting into driving force.
The XY mechanism is a support arm (not shown) that supports the holding frame 12 so as to be movable in the X and Y axis directions, and a pulse motor that applies a moving force in the X axis direction to the holding frame 12 via the support arm. An X-axis motor 19 and a Y-axis motor 20 that is a pulse motor that applies a moving force in the Y-axis direction to the holding frame 12 via a support arm are provided.
The X-axis motor 19 and the Y-axis motor 20 are driven for each stitch in synchronism with the sewing machine motor 18 while the above-described holding frame 12 holds the cloth to be sewn on the upper surface of the needle plate 11, and the holding frame 12 is driven. When the sewing needle 13 is positioned at a needle drop point set in advance in the X-axis direction and the Y-axis direction, a predetermined stitch is formed on the cloth.

  The pedal 17 is for performing an operation input for driving the sewing machine motor 19 or operating a presser lifting actuator (not shown) for moving the holding frame 12 up and down. A drive signal corresponding to the amount of depression is output to the pedal 17, and the operation control means 50 performs control to determine the number of rotations of the sewing machine motor 18 in accordance with the drive signal.

The operation panel 30 is connected to the operation control means 50 by a wired or wireless line (not shown).
The operation panel 30 is provided on a display unit 31 including a liquid crystal panel for displaying an image showing various information related to sewing of a sewing machine and an input button for setting input, and the display screen of the display unit 31. And detecting means 32 for detecting the contact state and the contact position.

The display means 31 displays an embroidery pattern related to the embroidery pattern on the display screen in association with the arrangement of the embroidery pattern on the cloth based on the sewing data.
The detection means 32 has innumerable transparent electrodes provided on the display screen. When pressed by contact at any position on the display screen, the two transparent electrodes at the contact position come into contact with each other, and the contact position coordinates are obtained. The signal output shown is performed.
That is, the operation panel 30 is a setting screen for receiving various setting inputs from the operator by the display means 31, such as a new set point designation screen G1 (see FIG. 5; described later) and an edit set point designation screen G2 (see FIG. (See 9, see below). In these setting screens, a pattern display area S for displaying predetermined information such as an embroidery pattern to be newly set or edited, processing determination “execution” and cancellation “×”, and embroidery pattern set point candidate selection “candidate” A display area B of a button for inputting “.” Is included. When contact input to the display screen by the fingertip of the operator is performed, the contact position is detected by the detection unit 32, and the input of the input button is determined by the processing of the operation control unit 50, and specified by the determination. A process assigned in advance to the input button assigned is executed. Thereby, various input buttons displayed on the operation panel 30 can be made to function in the same manner as physical input buttons having electrical contacts.

Next, a control system for the sewing machine will be described with reference to FIG. Here, FIG. 2 is a block diagram showing a control system of the sewing machine.
As shown in FIG. 2, the operation control means 50 which is the center of the control system of the sewing machine 100 is a predetermined control program for the sewing machine motor 18, the X-axis motor 19, the Y-axis motor 20, the operation panel 30 and other actuators (not shown). The CPU 51 executes various processes and controls in accordance with the program, the ROM 52 that stores the programs for executing the various processes and controls, the data required for the various processes and controls, and stores various data and performs various processes. A RAM 53 serving as a work area, an external storage device 54 that is a detachable recording unit, an interface (not shown) for connecting the CPU 51 and various devices, and a pulse motor driver (not shown) for each motor. CPU 51, ROM 52, RAM 53, external storage device 54 and interface are connected via a bus It has been.

  The CPU 51 includes an X-axis origin sensor (not shown) provided with the X-axis motor 19, a Y-axis origin sensor (not shown) provided with the Y-axis motor 20, a drive signal input from the pedal 17, and an operation panel 30. Various setting data input and various data stored in the external storage device 54 are processed based on execution of various control programs for the electronic cycle sewing machine stored in the ROM 52, and the sewing machine motor 18 and the X-axis motor 19 are processed. The Y axis motor 20, the operation panel 30, or other actuators are controlled.

More specifically, in the sewing process of the embroidery pattern, the CPU 51 reads the sewing data stored in the ROM 52 or the external storage device 54 by executing a predetermined control program, and starts sewing data when the sewing machine motor 18 starts to be driven. The X-axis motor 19 and the Y-axis motor 20 are driven so that the needle drop point specified in (1) is reached, and control for positioning the holding frame 12 is executed. The CPU 51 continues to control the holding frame 12 in order for a plurality of needle drop points set in the sewing data until the sewing is completed while synchronizing with the rotation of the sewing machine motor 18.
Further, before the sewing process of the embroidery pattern, an operation confirmation process for confirming the movement of the holding frame 12 based on a designated embroidery pattern set point (described later) can be performed. The CPU 51 executes a predetermined control program to drive the X-axis motor 19 and the Y-axis motor 20 for each stitch so that the needle drop point specified in the sewing data is obtained, thereby positioning the holding frame 12. Execute control.

  The RAM 53 is provided with various work memories and counters, and is used as a work area during the sewing operation.

  The ROM 52 stores various control programs, fixed control data, or various sewing data. Specifically, the ROM 52 stores a new set point designation program, a sewing data creation program, a search program, an edit set point designation program, a linear movement control program, a switching program, a set point movement control program, and the like.

The new set point designation program is a process for causing the CPU 51 to designate the contact position as an embroidery pattern setting point for setting an embroidery pattern pattern based on the contact position detected by the detection means 32 of the operation panel as the designation means. It is a program for realizing the function concerning. More specifically, in the sewing data creation process for newly creating sewing data, when contact input by the operator's fingertip to the display screen of the operation panel 30 is performed based on the execution of the new set point designation program by the CPU 51, The contact position is detected by the detection means 32, and the detected contact position is designated as the embroidery pattern setting point of the newly set embroidery pattern.
Here, the embroidery pattern setting point is a point for setting an embroidery pattern to be sewn on the cloth. Specifically, the needle drop point at which the needle drops when the embroidery pattern is sewn on the cloth. Or a shape point for specifying the planar shape of the embroidery pattern. More specifically, as the shape point, for example, in a zigzag embroidery pattern, each corner is raised, and when a substantially circular shape is designated as the embroidery pattern, the shape point is A circle is defined by a trajectory passing through at least three predetermined points.

The sewing data creation program is a program for causing the CPU 51 to realize a function relating to processing for creating sewing data related to sewing of an embroidery pattern based on a designated embroidery pattern set point as sewing data creation means.
Here, the sewing data specifically includes the operation amount data related to the drive amounts of the X-axis motor 19 and the Y-axis motor 20 and the timing related to the vertical movement of the sewing needle 13 necessary for sewing the embroidery pattern. And movement amount data.

  Of the embroidery pattern setting points for setting the embroidery pattern displayed on the display screen based on the contact position detected by the detection means 32 of the operation panel 30 as the search means, the search program This is a program for realizing a function related to processing for searching for candidate embroidery pattern set points included in the set point candidate search range A (see FIG. 9) of the display screen. More specifically, in the sewing data editing process for editing the sewing data, contact input by the operator's fingertip is performed on the display screen of the operation panel 30 on which the embroidery pattern is displayed based on the execution of the search program by the CPU 51. Then, the contact position is detected by the detection means 32, and the candidate embroidery pattern set points included in the set point candidate search range A on the display screen are searched around the detected contact position.

The edit set point designating program is a program for realizing a function related to a process of causing the CPU 51 to designate an embroidery pattern set point for editing sewing data based on the retrieved candidate embroidery pattern set point as a designating means. It is. More specifically, in the sewing data editing process, based on the execution of the edit set point designation program by the CPU 51, a predetermined number of candidate embroidery pattern set points retrieved and candidate numbers are associated with each other in a candidate list table (for example, The needle drop point candidate list table T1 (FIG. 10 (a)) and the shape point candidate list table T2 (FIG. 10 (b)) are created and selected according to a predetermined operation of the display panel by the operator from the candidate list table. Candidate embroidery pattern setting points are designated as embroidery pattern setting points for editing sewing data.
The editing of the sewing data is, for example, a process of moving the position of the embroidery pattern set point or deleting only a predetermined embroidery pattern set point.

  The straight line movement control program causes the CPU 51 as the straight line movement control means to set the X axis until the cloth set point corresponding position corresponding to the embroidery pattern set point is opposed to the sewing needle 13 based on the designated embroidery pattern set point. This is a program for controlling the drive of the motor 19 and the Y-axis motor 20 (XY moving means) to realize a function related to the process of moving the holding frame 12 holding the cloth substantially linearly. More specifically, in the operation confirmation processing of the holding frame 12, instead of positioning the holding frame 12 for each stitch, the CPU 51 performs sewing data creation processing and sewing data editing processing based on the execution of the linear movement control program. The holding frame 12 is moved substantially linearly at the shortest distance until the cloth set point corresponding position corresponding to the designated predetermined embroidery pattern set point faces the sewing needle 13.

Here, the function related to the linear movement of the holding frame 12 related to the execution of the linear movement control program by the CPU 51 is enabled or disabled by the CPU 51 executing the switching program based on a predetermined operation of the operation panel 30 by the operator, for example. Can be disabled. At this time, the CPU 51 constitutes a switching unit that switches the function related to the linear movement of the holding frame 12 between valid and invalid.
In addition, the set point movement control program instructs the CPU 51 as a set point movement control unit for each designated embroidery pattern set point when the function related to the linear movement of the holding frame 12 under the control of the CPU 51 is disabled. The function relating to the process of moving the holding frame 12 by controlling the driving of the X-axis motor 19 and the Y-axis motor 20 so that the cloth set point corresponding position corresponding to the embroidery pattern set point is opposed to the sewing needle 13. It is a program for realizing.

  The external storage device 54 is a nonvolatile so-called flash memory, and stores sewing data other than those stored in the ROM 52 and sewing data newly set or edited based on a predetermined operation by the operator.

Next, sewing data creation processing under the control of the CPU 51 will be described with reference to FIGS.
Here, FIG. 3 is a flowchart showing an example of an operation related to the sewing data creation processing. FIG. 4 is a flowchart illustrating an example of an operation related to the new set point designation process, and FIG. 5 is a diagram illustrating a specific display example of the operation panel 30 in the new needle drop point designation process.

  As shown in FIG. 3, in the sewing machine 100 of the present embodiment, in the sewing data creation process, first, as a new set point designating process for newly setting an embroidery pattern set point, a new needle for designating a needle drop point A drop point designation process is executed (step S1).

As shown in FIG. 4, in the new needle drop point designation process, a new needle drop point is set to set an embroidery pattern pattern on the display screen of the operation panel 30 based on execution of a predetermined control program by the CPU 51. CPU 51 executes a predetermined determination program in a state in which the designation of the operator is accepted, and whether or not contact input by the operator's fingertip to the pattern display area of the display screen has been performed, that is, whether the pattern display area has been pressed. It is determined whether or not (step S11).
Here, when it is determined that the pattern display area is pressed (step S11; YES), that is, as shown in FIG. 5, when a predetermined position is pressed on the new set point designation screen G1, the contact position (FIG. 5) is displayed. When the signal indicating the contact position coordinates output from the detection means 32 is input to the CPU 51, the CPU 51 reads the new set point from the ROM 52. The designated program is read out and expanded in the RAM 53, and control for designating (setting) the contact position as a needle drop point is performed based on the execution of the new set point designating program (step S12).

Then, by repeating the operations in steps S11 and S12, a predetermined number of needle drop points are designated. That is, after the contact position is designated as the needle drop point, the process proceeds to step S11 to determine whether or not the pattern display area is pressed under the control of the CPU 51. Specify a new needle entry point.
On the other hand, if it is determined in step S11 that the button has not been pressed (step S11; NO), the CPU 51 executes a predetermined determination program and executes an operation panel for determining the designated needle entry point. It is determined whether or not the button “execute” has been pressed (step S13).
If it is determined that the execution button “execute” is pressed (step S13; YES), the CPU 51 determines the needle entry point designated in step S12 and sets the embroidery pattern. Thereby, the new needle drop point designation process is terminated.

  Next, as shown in FIG. 3, the CPU 51 controls the display means 31 based on the execution of a predetermined control program, and based on the set embroidery pattern, a holding frame for sewing the embroidery pattern A pop-up display for instructing whether or not to execute the operation confirmation process for confirming the movement of 12 is performed (step S2). Subsequently, the CPU 51 determines whether or not an execution button “execute” for executing the operation confirmation process is pressed based on execution of a predetermined determination program (step S3).

If it is determined in step S3 that the execution button “execute” is pressed (step S3; YES), the CPU 51 performs the needle drop operation for each stitch based on the execution of a predetermined determination program. Trace movement for tracing and moving the set point corresponding position of the cloth corresponding to the point so as to face the sewing needle 13 is instructed, or the set point corresponding position corresponding to the designated predetermined needle drop point is set. It is determined whether a linear movement at the shortest distance is instructed to face the sewing thread (step S4).
Here, when a linear movement at the shortest distance is instructed, the process proceeds to step S5, where the CPU 51 reads the linear movement control program from the ROM 52 and develops it in the RAM 53, and based on the execution of this linear movement control program, Control for driving the X-axis motor 19 and the Y-axis motor 20 to control the positioning by moving the holding frame 12 linearly at the shortest distance so that the set point corresponding position corresponding to a predetermined needle drop point is opposed to the sewing thread. Do.
On the other hand, when the trace movement is instructed, the process proceeds to step S6, and the CPU 51 controls the driving of the X-axis motor 19 and the Y-axis motor 20 based on the execution of a predetermined control program, thereby creating an embroidery pattern. Control is performed to position the holding frame 12 for each stitch so that the defined needle drop point is obtained.
When the operation check process of the holding frame 12 is executed in this way, the CPU 51 reads out the sewing data creation program from the ROM 52 and develops it in the RAM 53, and based on the designated needle entry point according to this sewing data creation program. The creation of the sewing data relating to the sewing of the embroidery pattern is completed. The created sewing data is stored in a predetermined storage area of the external storage device 54.

  If it is determined in step S3 that the execution button “execute” related to the execution of the operation confirmation process has not been pressed (step S3; NO), the process proceeds to step S4 and under the control of the CPU 51 It is determined whether or not the cancel button “×” has been pressed (step S7).

If it is determined in step S7 that the cancel button “×” has been pressed (step S7; YES), the CPU 51 executes the new needle drop point designating process again based on the execution of the predetermined determination program. It is determined whether or not an instruction is given (step S8).
Here, when it is determined that execution of the new needle drop point designation process is instructed (step S8; YES), the process proceeds to step S1, and the CPU 51 controls execution of the new needle drop point designation process. On the other hand, if it is determined that the execution of the new needle drop point designation process is not instructed (step S8; NO), the sewing data creation process is terminated.

  In the above sewing data creation process, as shown in FIG. 6, a new shape point designation process for designating a shape point is executed instead of the new needle entry point designation process (step S1; see FIG. 3). It may be done (step 21). That is, as a new shape point designation process, a process point substantially the same as steps S11 to S13 in FIG. 4 is performed to designate a shape point for specifying the planar shape of the embroidery pattern, and based on the designated shape point. An embroidery pattern is set. Therefore, when a new embroidery pattern is set by performing the new shape point designation process, the outline of the embroidery pattern pattern is roughly compared to the new needle drop point designation process for designating the needle drop point for each stitch. It can be set easily.

Next, the sewing data editing process under the control of the CPU 51 will be described with reference to FIGS.
Here, FIG. 7 is a flowchart showing an example of an operation related to the sewing data editing process. FIG. 8 is a flowchart illustrating an example of an operation related to the editing needle drop point designation process, and FIG. 9 is a diagram illustrating a specific display example of the operation panel 30 in the edit needle drop point designation process. FIG. 10A is a diagram showing a needle drop point candidate list table, and FIG. 10B is a diagram showing a shape point candidate list table.

  As shown in FIG. 7, in the sewing machine 100 of the present embodiment, in the sewing data editing process, first, as an edit set point designating process for designating an embroidery pattern set point related to editing of sewing data, a needle drop point is set. The designated edit needle drop point designation process is executed (step S31).

As shown in FIG. 8, in the editing needle drop point designation process, the embroidery pattern is displayed on the display screen of the operation panel 30 based on the execution of a predetermined control program by the CPU 51, and the needle drop point to be edited is designated. Is received, the CPU 51 executes a predetermined determination program to determine whether or not contact input by the operator's fingertip to the pattern display area of the display screen has been performed, that is, whether or not the pattern display area has been pressed. Is determined (step S311).
Here, if it is determined that the pattern display area is pressed (step S311; YES), that is, as shown in FIG. 9, when a predetermined position is pressed on the edit set point designation screen G2, the contact position (FIG. 9) is displayed. If the signal indicating the contact position coordinates output from the detection means 32 is input to the CPU 51 (step S312), the CPU 51 reads the search program from the ROM 52. Of the needle entry points for setting the embroidery pattern pattern based on the detected contact position according to the search program, the read-out and expanded in the RAM 53, the set point candidate search range A on the display screen (see FIG. 9). A process for searching for a needle drop point included in the inside is executed. That is, the CPU 51 sets the set point candidate search range A based on the detected contact position, for example, centering on the contact position (step S313), and sets the candidate needle drop points included in the set point candidate search range A. All are searched (step S314).
Subsequently, the CPU 51 reads out the edit set point designation program from the ROM 52 and develops it in the RAM 53, and in accordance with this edit set point designation program, the needle entry point for editing the sewing data based on the searched candidate needle entry point. Execute the process that specifies. That is, the CPU 51 creates a needle drop point candidate list table T1 (FIG. 10A) by associating a predetermined number of candidate needle drop points searched within the set point candidate search range A with candidate numbers. (Step S314) Based on the candidate numbers in the needle drop point candidate list table T1, the needle drop point of candidate number 1 is set as a candidate needle drop point to be edited (Step S315).

Thereafter, the process proceeds to step S311, and it is determined whether or not the pattern display area is pressed under the control of the CPU 51. If it is determined that the pattern display area is not pressed (step S311; NO), the CPU 51 executes a predetermined determination program to determine whether or not a candidate button “candidate” for changing the set candidate needle entry point has been pressed (step S316).
Here, if it is determined that the candidate button “candidate” has been pressed (step S316; YES), the CPU 51 executes a predetermined control program and executes the next based on the candidate numbers in the needle drop point candidate list table T1. Is set as a candidate needle drop point to be edited (step S317). Thereafter, the process proceeds to step S311 and the CPU 51 controls the execution of the subsequent processing.

If it is determined in step S316 that the candidate button “candidate” has not been pressed (step S316; NO), the CPU 51 executes a predetermined determination program to determine a needle entry point that is a candidate. It is determined whether or not an execution button “execute” is pressed (step S318).
If it is determined in step S318 that the execution button “execute” has not been pressed (step S318; NO), the process proceeds to step S311 and a new needle entry point to be edited is controlled under the control of the CPU 51. In performing the search, it is determined whether or not the pattern display area is pressed.
On the other hand, if it is determined that the execution button “execute” has been pressed (step S318; YES), the CPU 51 designates the candidate needle entry point as a needle entry point for editing the sewing data, and then designates the edit needle entry point. The process ends.

  Next, as shown in FIG. 7, the CPU 51 controls the display unit 31 based on the execution of a predetermined control program, and executes the operation confirmation process of the holding frame 12 based on the designated needle entry point. Pop-up display for instructing whether or not to perform is performed (step S32). Subsequently, the CPU 51 determines whether or not the execution button “execute” for executing the operation confirmation process is pressed based on the execution of the predetermined determination program (step S33).

  If it is determined in step S33 that the execution button “execute” is not pressed (step S33; NO), the CPU 51 executes a predetermined determination program to determine whether or not the cancel button “x” is pressed. Is determined (step S35).

If it is determined in step S35 that the cancel button “×” has been pressed (step S35; YES), the CPU 51 executes re-editing of the embroidery pattern based on execution of a predetermined determination program. It is determined whether or not it is instructed (step S36).
If it is determined that the execution of redoing the embroidery pattern has been instructed (step S35; YES), the process proceeds to step S31, and the CPU 51 executes the editing needle drop point designating process. On the other hand, if it is determined that the execution of re-editing of the embroidery pattern is not instructed (step S36; NO), the sewing data editing process is terminated.

  If it is determined in step S33 that the execution button “execute” is pressed (step S33; YES), the CPU 51 determines whether the X-axis motor 19 and the Y-axis motor 20 are based on the execution of a predetermined control program. After controlling the driving and performing control to position the holding frame 12 by linear movement at the shortest distance so that the set point corresponding position corresponding to the designated predetermined needle drop point is opposed to the sewing thread (step S34). After executing a predetermined editing operation based on the needle entry point, the sewing data editing process is terminated.

  In the above sewing data editing process, as shown in FIG. 11, an editing shape point specifying process for specifying a shape point is executed instead of the editing needle drop point specifying process (step S31; see FIG. 7). You may do (step 41). That is, as the edit shape point designation process, as shown in FIG. 12, in step S414, all candidate shape points included in the set point candidate search range A are searched under the control of the CPU 51, and the set point candidate search range A A shape point candidate list table T2 (FIG. 10B) is created by associating a predetermined number of candidate shape points and candidate numbers searched within, and candidates of the shape point candidate list table T2 are created in step S415. Based on the number, the shape point of candidate number 1 is set as the candidate shape point to be edited. In step S417, the shape point of the next candidate number is set as the candidate shape point to be edited based on the candidate number in the shape point candidate list table T2 under the control of the CPU 51. Except for what has been described above, substantially the same processing as that shown in FIG. 8 is performed, whereby a predetermined shape point for editing the sewing data is designated. Further, as shown in FIG. 11, in step S44, the set point corresponding position corresponding to the designated shape point is opposed to the sewing needle 13 based on the drive control of the X-axis motor 19 and the Y-axis motor 20 by the CPU 51. The holding frame 12 is linearly moved at the shortest distance so as to be positioned.

As described above, according to the sewing machine 100 of the present embodiment, when creating the sewing data, the operation panel 30 for displaying the embroidery pattern related to the embroidery pattern in association with the arrangement of the embroidery pattern on the cloth. When a predetermined position on the display screen is instructed by an operator's finger or the like, the contact position is detected, and an embroidery pattern setting point for setting the embroidery pattern pattern based on the detected contact position Can be specified as
Further, when a predetermined position on the display screen on which the embroidery pattern pattern is displayed is instructed to be touched by an operator's finger or the like, the contact position is detected, and the embroidery pattern displayed on the display screen based on the detected contact position Among the set points, the candidate embroidery pattern set points included in the set point candidate search range A can be searched, and the embroidery pattern set points of the sewing data can be designated based on the searched candidate embroidery pattern set points. .
Therefore, when sewing data is created or when sewing data is edited, an embroidery pattern set point can be designated by touching a predetermined position on the display screen of the operation panel 30. Designation of the embroidery pattern set points can be performed quickly and easily as compared with the configuration based on the operation.

Further, when creating sewing data or editing sewing data, the cloth set point corresponding position corresponding to the embroidery pattern set point is set under the control of the CPU 51 based on the designated embroidery pattern set point. The holding frame 12 can be moved substantially linearly until it faces the sewing needle 13. That is, the holding frame 12 can be quickly moved to a predetermined embroidery pattern set point. For example, an operation for checking the shape of the embroidery pattern actually sewn on the cloth, the operation related to the sewing of the sewing machine 100, and the like Can be performed efficiently.
The function related to the linear movement of the holding frame 12 can be appropriately switched between valid and invalid based on the execution of the switching program by the CPU 51. That is, when the holding frame 12 is moved in a straight line, if an obstacle or the like exists in the moving direction and the obstacle obstructs the linear movement of the holding frame 12, the function related to the linear movement of the holding frame 12. By disabling, the holding frame 12 can be properly moved without obstructions or the like getting in the way. That is, when the function related to the linear movement of the holding frame 12 is disabled, the embroidery pattern set point is handled for each designated embroidery pattern set point based on the execution of the set point movement control program by the CPU 51. The holding frame 12 can be moved so that the set point corresponding position of the cloth to be opposed to the sewing needle 13.

The present invention is not limited to the above embodiment, and various improvements and design changes may be made without departing from the spirit of the present invention.
For example, a direction input key for instructing a predetermined direction is provided on the display screen of the operation panel 30, and an embroidery pattern set point set when sewing data is newly created using the direction input key or sewing data to be edited The embroidery pattern setting point may be finely adjusted.

  The numerical values of the needle drop point candidate list table T1 and the shape point candidate list table T2 are examples, and are not limited to those shown in FIGS. 10 (a) and 10 (b).

1 is a perspective view illustrating an overall configuration of a sewing machine exemplified as a preferred embodiment to which the present invention is applied. It is a block diagram which shows the control system of the sewing machine of FIG. It is a flowchart which shows an example of the operation | movement which concerns on the sewing data creation process by the sewing machine of FIG. It is a flowchart which shows an example of the operation | movement which concerns on the new needle drop point designation | designated process by the sewing machine of FIG. It is a figure which shows the specific example of a display of the operation panel in the new needle drop point designation | designated process of FIG. It is a flowchart which shows an example of the operation | movement which concerns on the sewing data creation process by the sewing machine of FIG. It is a flowchart which shows an example of the operation | movement which concerns on the sewing data edit process by the sewing machine of FIG. 3 is a flowchart showing an example of an operation related to an editing needle drop point designation process by the sewing machine of FIG. 1. It is a figure which shows the specific example of a display of the operation panel in the edit needle drop point designation | designated process of FIG. It is a figure which shows a candidate list table. It is a flowchart which shows an example of the operation | movement which concerns on the sewing data edit process by the sewing machine of FIG. 3 is a flowchart showing an example of an operation related to an edit shape point designation process by the sewing machine of FIG. 1.

Explanation of symbols

100 sewing machine 12 holding frame 13 sewing needle 19 X-axis motor (XY moving means)
20 Y-axis motor (XY moving means)
30 operation panel 31 display means 32 detection means 50 operation control unit 51 CPU (sewing data creation means, designation means, search means, linear movement control means, switching means, set point movement control means)
A Setpoint candidate search range

Claims (2)

Sewing data creation means for creating sewing data relating to the sewing of the embroidery pattern is provided. Based on the sewing data created by the sewing data creation means, the holding frame for holding the cloth and the sewing needle are relative to each other in the XY direction. is moved, a sewing machine to sew the embroidery pattern to form a plurality of needle drop point on the fabric by the sewing needle, the
Display means for displaying an embroidery pattern related to the embroidery pattern in association with the arrangement of the embroidery pattern on the cloth;
Detecting means for detecting a contact position on the display screen of the display means;
Of the embroidery pattern setting points as shape points for specifying the planar shape of the embroidery pattern displayed on the display screen based on the contact position detected by the detection means, set point candidates for the display screen Search means for searching for candidate embroidery pattern set points included in the search range;
Based on the candidate embroidery pattern setting points retrieved by the retrieval means, the embroidery pattern setting
A designation means for moving the position of the point to set the shape of the embroidery pattern ;
XY moving means for moving the holding frame in the XY direction with respect to the sewing needle;
The XY movement until the set point corresponding position of the cloth corresponding to the embroidery pattern set point as the shape point designated by the designation means is opposed to the sewing needle without passing through the plurality of needle drop points. A sewing machine comprising linear movement control means for controlling the drive of the means to move the holding frame substantially linearly. Switching means for switching the function related to linear movement of the holding frame by the linear movement control means to be valid or invalid;
When the function of the linear movement of the holding frame with a linear movement control means is disabled by said switching means, for each point of the specified the embroidery pattern setpoint by the plurality of needle drop point and the designation unit, characterized in that it comprises a set point movement control means for moving the holding frame by controlling the driving of the XY moving means so as to face the set point position corresponding to the fabric on the needle corresponding to those the point The sewing machine according to claim 1 .

Images