JP5073360B2 - sewing machine - Google Patents

Description

  The present invention relates to a sewing machine that forms a seam according to sewing data including a plurality of needle drop positions and their order.

Conventionally, a sewing machine that forms a predetermined stitch pattern based on sewing data has been widely used. This sewing machine is provided with a cloth moving mechanism that horizontally moves a cloth holding mechanism that holds the cloth by the vertical movement of the cloth presser on a plane along the needle plate, and X, Y for each needle determined in the sewing data. Refers to the movement amount in the axial direction in order, and the cloth movement mechanism is driven for each needle by the pulse motor in the X-axis direction and the Y-axis direction, so that the cloth is moved relative to the needle bar and a predetermined stitch pattern is obtained. The formation of is realized.
Further, in the cloth holding mechanism of the sewing machine described above, the cloth presser is lowered with respect to the cloth installed on the upper surface of the lower plate, and the cloth is sandwiched between the presser foot and the lower plate by applying a pressing force to the cloth from above. Hold the fabric. At this time, if the presser foot is lowered from the raised position where the presser foot is moved upward to the presser foot position at a time, the presser foot is installed on the lower plate due to vibration generated when the presser foot and the lower plate come into contact with each other or vibration generated during the presser foot operation. The fabric may be misaligned. Therefore, in order to reduce the amount of movement of the presser foot when holding the fabric by the presser foot, there is known a sewing machine cloth holding mechanism in which an intermediate position is provided between the presser foot lifting position and the presser foot position. (For example, Patent Document 1). In other words, when the cloth is in the raised position, the cloth is adjusted to the approximate position, and the cloth presser can be stopped at the intermediate position to prevent misalignment, and the cloth presser at the intermediate position is seen to accurately position the cloth. It is possible to match. There is also known a sewing machine that can set the height of the intermediate position of the presser foot (for example, Patent Document 2).
JP 2003-135878 A JP 2003-326039 A

  By the way, since the thickness of the fabric varies with each sewing operation, the intermediate position of the presser foot that is optimal for the thickness of the fabric differs. For this reason, the height setting of the intermediate position must be changed every time the thickness of the fabric changes. Therefore, when the sewing work using the cloth and sewing data similar to the sewing work (sewing work A) performed in the past by the sewing machine is performed, the height of the intermediate position of the presser foot of the sewing work A set in the sewing machine is set. If it can be used as it is, it is not necessary to set the height of the intermediate position of the presser foot again, which is efficient.

  However, in the conventional sewing machine, when the sewing work is performed by setting the height of the intermediate position of the presser foot different from that of the sewing work A after the sewing work A is performed, the height of the intermediate position of the presser foot of the sewing machine is concerned. This setting is irrelevant to the height of the intermediate position of the presser foot in the sewing operation A. For this reason, the height of the intermediate position of the presser foot of the sewing work A has to be set again, and there is a problem that efficiency is poor.

In addition, in a sewing operation (for example, sewing a pocket) in which a fabric is newly added in the middle of the same sewing operation, the optimum intermediate position of the presser foot is changed during the same sewing operation. In this case, the conventional sewing machine has to change the setting of the intermediate position during the same sewing operation, and the operator is forced to perform complicated operations during the sewing operation.
Furthermore, when performing sewing operations using the same fabric and sewing data using a plurality of sewing machines, the conventional sewing machine has to set the height of the intermediate position of the presser foot for each sewing machine, which is inefficient. There was a problem.

  In view of the above-described problems, an object of the present invention is to provide a sewing machine capable of efficiently setting an intermediate position of a presser foot.

According to the first aspect of the present invention, there is provided a needle up-and-down moving mechanism for moving the sewing needle up and down, a cloth holding mechanism having a cloth presser that holds the sewing product by pressing it from above, a cloth presser and a sewing needle. A cloth moving mechanism that moves the workpiece by allowing relative movement in the direction crossing the vertical movement direction of the sewing needle, and at least a plurality of needle drop positions in sewing, their order, and a temporary stop during sewing A first storage means for storing a plurality of sewing data including a stop command, and driving the needle up-and-down moving mechanism and the cloth moving mechanism in accordance with the selected sewing data to stitch the sewing object in a sewing machine for forming at least the presser foot position said presser foot, and a driving means for driving each of the height of the raised position and the intermediate position, the presser foot position, the movement of the presser foot to the raised position or the intermediate position A presser foot position indication means for force instruction, the intermediate position height storage for storing the presser foot height at height and the pause associated with each sewing data of intermediate positions associated with each sewing data means and, so that moving the presser foot to the height of the intermediate position movement associated with the sewing data is carried out sewing to be instructed to the intermediate position of the presser foot by the presser foot position indicating means And control means for controlling to move the presser foot to the presser foot height at the time of the temporary stop after the sewing is executed according to the sewing data and stopped according to the temporary stop command of the sewing data. It is characterized by providing.

According to a second aspect of the present invention, in the sewing machine according to the first aspect, sewing package data including various sewing parameters including a setting of a height of an intermediate position of the presser foot that can be shared with the plurality of sewing data. A second storage means for storing, wherein the control means executes the sewing when the cloth presser is moved to an intermediate position by the driving means when executing the combination of the sewing data and the sewing package data. Control is performed to move the presser foot to a height of an intermediate position of the presser foot stored in package data.
In Claim 2 , the second storage means for storing the sewing package data and the intermediate position height storage means for storing the height of the intermediate position of the presser foot are the same storage means.

According to a third aspect of the present invention, there is provided a needle up-and-down moving mechanism for moving the sewing needle up and down, a cloth holding mechanism having a cloth presser for holding the sewing object by pressing it from above, a cloth presser and a sewing needle. A cloth moving mechanism for moving the sewing work by allowing relative movement in a direction intersecting the vertical movement direction of the needle;
First storage means for storing a plurality of sewing data including at least a plurality of needle drop positions and their order in sewing, and driving the needle up-and-down moving mechanism and the cloth moving mechanism according to the selected sewing data In the sewing machine that forms a seam in the workpiece, the driving means for driving the cloth presser to at least the height of the presser foot position, the lift position, and the intermediate position, and the presser foot position, the lift position, or the intermediate position A presser foot position instructing unit for instructing to input the movement of the presser foot, an intermediate position height storing unit for storing the height of the intermediate position stored as a part of each sewing data, and the presser foot position instructing unit When the movement of the presser foot to the intermediate position is instructed by the control means, the control means for controlling to move the presser foot to the height of the intermediate position associated with the sewing data for sewing. Second storage means for storing sewing package data including various sewing parameters including setting of the height of the intermediate position of the presser foot that can be shared with the plurality of sewing data, and a part of the sewing data Selection means for setting the priority application order to be selectable between the height of the intermediate position of the presser foot stored as the height of the intermediate position of the presser foot stored in the sewing package data. The means controls the cloth presser to move to a height of an intermediate position of the presser foot stored in the sewing data and the sewing package data in accordance with the priority application order set by the selecting means. .

According to the first aspect of the present invention, when the movement of the presser foot to the intermediate position is instructed by the presser foot position indicating means, the control means moves the presser foot to the intermediate position stored in the intermediate position height storage means. The drive means is controlled to move. At this time, the intermediate position height storage means stores at least the intermediate position associated with the sewing data that is being sewn, and the presser foot is set to the intermediate position height associated with the sewing data. Moved. Therefore, the presser foot is positioned at the optimum intermediate position for the sewing data, and it is possible to minimize the displacement of the sewing product when the presser foot moves from the intermediate position to the presser foot position. The efficiency of sewing work with the sewing machine is greatly increased. In addition, when finely adjusting the cloth position using the cloth presser at the intermediate position, the cloth presser can be set to an appropriate intermediate position according to the sewing data, so that the cloth position can be adjusted more accurately. It is possible to improve the sewing quality.
In addition, since the intermediate position is stored in the intermediate position height storage means, even when the sewing work is performed using the sewing data different from the sewing data, even if the sewing work is performed using the sewing work data, the intermediate position is automatically stored. The intermediate position of the presser foot is controlled to the intermediate position associated with the sewing data. Therefore, when the sewing work with sewing data different from the sewing data is performed, the problem that the intermediate position of the presser foot had to be set again in the prior art can be solved, and the efficiency of the sewing work with the sewing machine can be improved. Increase significantly.

Further, according to the first aspect of the invention, the sewing data includes a presser foot height data when the pause command and pause stopping the sewing in the middle of the sewing, the sewing operation in the pause command to stop The driving means is controlled by the control means so that the presser foot is positioned at the intermediate position height of the presser foot indicated by the presser foot height data. As a result, even when the thickness of the material to be sewn is changed by adding a cloth in the middle of sewing using the sewing data, the optimum intermediate position of the presser foot can be set in association with the sewing data. Therefore, in the prior art, the problem that the height of the intermediate position of the presser foot had to be set again during the sewing work can be solved, and the efficiency of the sewing work by the sewing machine is greatly increased.

According to the second aspect of the present invention, when performing the sewing operation by combining the sewing data and the sewing package data, if the presser foot position instruction means instructs the presser foot to be positioned at the intermediate position, the presser foot is The driving means is controlled by the control means so as to be positioned at the height of the intermediate position of the presser foot stored in the sewing package data. Accordingly, when it is desired to use the common intermediate presser height setting for different sewing data, it is only necessary to set the intermediate position height of the sewing package data. There is no need to set the height of the intermediate position. Therefore, the efficiency of sewing work by the sewing machine is significantly increased.
Further, by using any one of a plurality of sewing package data in combination with one piece of sewing data, it is possible to use different intermediate positions of the presser foot for one piece of sewing data. When it is desired to change the position temporarily, the sewing data can be used without rewriting. Therefore, the efficiency of sewing work by the sewing machine is significantly increased.

According to the invention of claim 3 , the selection means preferentially applies the height of the intermediate position of the presser foot stored as a part of the sewing data and the intermediate position height of the presser foot stored in the sewing package data. Set to be selectable. As a result, when the intermediate position height of the presser foot is stored in both the sewing data and the sewing package data, the operator can select and use the intermediate position height to be preferentially adopted. Accordingly, it is possible to set and operate the intermediate position height of the presser foot more flexibly, and the operability of the sewing machine is greatly improved.

(Overall structure of the invention)
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The sewing machine 100 according to the present invention is a sewing machine that forms a seam according to sewing data 30 (see FIG. 6) including a plurality of needle drop positions and their order.
FIG. 1 is a perspective view showing an embodiment of a sewing machine 100 according to the present invention. FIG. 2 is a block diagram showing a main configuration of the sewing machine 100 of the present invention.
As shown in FIG. 1, a sewing machine 100 includes a sewing machine body 1 that supports a needle bar 9 that holds a sewing needle 9a so as to be movable up and down, a needle vertical movement mechanism that moves the needle bar 9 up and down, and a workpiece to be sewn. The presser foot 20 has a presser foot 20 that holds the workpiece by moving up and down with respect to the lower plate 16 on which the cloth is placed. The cloth moving mechanism 15 for moving the sewing product relative to the needle bar 9 by horizontally moving the sewing material and the sewing needle 9a is provided in the vicinity of the sewing needle 9a so that the sewing product does not extend upward as the sewing needle 9a rises. The intermediate presser 25, the pedal 6 for switching between driving and stopping of the sewing machine 100 and adjusting the sewing speed by the sewing machine 100, and the pedal 7 as "cloth presser position indicating means" for instructing the vertical movement of the presser foot 20. , Various information of sewing machine 100 Comprising performs shows a touch panel display 4 as performing various inputs to the sewing machine 100, the control unit 10 as "control means" for controlling various operations of the sewing machine, the.

The sewing machine main body 1 is at least a sewing machine frame that is a casing, a sewing machine motor 2 provided inside the sewing machine frame, and is arranged along the extending direction of the arm portion of the sewing machine frame and connected to the sewing machine motor (not shown). A main shaft. When the main shaft is rotated by driving the sewing machine motor, the needle bar 9 is moved up and down by the needle vertical movement mechanism, and the sewing needle 9a held by the needle bar 9 is moved up and down with respect to the workpiece.
Although not shown, a lower shaft that is arranged along the main shaft below the needle plate 8 and rotates in conjunction with the rotation of the main shaft, and a hook portion that is rotatably connected to the lower shaft. Is provided. The lower shaft rotates in conjunction with the rotation of the main shaft via a power transmission mechanism (not shown) provided in the vertical body portion of the sewing machine, thereby rotating the shuttle portion. At this time, the rotation of the hook portion is provided in accordance with the phase of the vertical movement of the sewing needle described above. In this way, a seam is formed on the workpiece, and sewing is performed by a sewing machine as is well known.
The direction of the main shaft is the Y-axis direction, the direction perpendicular to the Y-axis direction and along the upper surface of the needle plate 8 is the X-axis direction, and the direction orthogonal to the X-axis direction and the Y-axis direction is the Z-axis direction. .

Further, as shown in FIG. 2, the pedal 6 is provided with a pedal sensor 6a for detecting the depression position of the pedal 6 by the operator. The drive of the sewing machine motor is controlled to a speed corresponding to the depression position of the pedal 6 detected by the pedal sensor 6a. Thereby, the sewing speed by the sewing machine is controlled.
The main shaft is provided with an encoder 3 for detecting the rotation angle of the main shaft. When the rotation angle of the main shaft is detected by the encoder 3, the position of the vertical movement of the needle bar is detected.

As shown in FIG. 2, the cloth moving mechanism 15 includes an X-axis motor 17 as a drive source for moving the cloth holding mechanism including the cloth presser 20 and the lower plate 16 in the X-axis direction, and the cloth holding mechanism as the Y-axis. Y-axis motor 18 as a drive source for moving in the direction, X-axis position sensor 17a for detecting the position of the lower plate 16 in the X-axis direction with respect to the needle plate 8, and the Y-axis direction of the lower plate 16 with respect to the needle plate 8 And a Y-axis position sensor 18a for detecting the position. The cloth moving mechanism 15 moves the X-axis motor 17 and the Y-axis motor 18 in conjunction with the vertical movement of the needle bar 9, thereby causing the workpiece held by the cloth holding mechanism to move relative to the needle bar 9. Move.
The movement of the sewing object by the cloth moving mechanism 15 at this time is performed based on the manufacturing data including the needle drop position and the order of the sewing work and other parameters related to the sewing work. Further, the position of the sewing product after being moved by the cloth moving mechanism 15 is detected by an X-axis position sensor 17a and a Y-axis position sensor 18a that detect the position of the lower plate 16 with respect to the needle plate 8. That is, the position of the sewing product is fed back by the X-axis position sensor 17a and the Y-axis position sensor 18a, so that the needle entry position designated by the sewing data 30 is compared with the actual sewing product position and corrected. . Thus, sewing based on the sewing data 30 is performed as is well known. The sewing data 30 will be described later.

The touch panel display 4 displays various types of information on the sewing machine 100. In addition, an input to the sewing machine 100 is performed by operating various input screens displayed on the touch panel display 4 by an operator.
A media interface 5 is provided on the side of the touch panel display 4. The media interface 5 is an interface to which an external storage device (for example, CompactFlash (registered trademark)) can be connected. The sewing machine 100 can use various programs and data stored in the external storage device connected to the media interface 5. It has become. The above-described sewing data 30 is stored in an external storage device connected to the media interface 5. When the sewing data 30 stored in the external storage device connected to the media interface 5 is selected on the screen of the touch panel display 4 by the operator, the sewing machine 100 performs the sewing work using the sewing data 30. That is, the external storage device connected to the media interface 5 functions as “first storage means”.

  Furthermore, the sewing data 30 can be created by input from the touch panel display 4. Sewing data 30 created by the touch panel display 4 is stored in an external storage device connected to the media interface 5. The creation of the sewing data 30 by the touch panel display 4 will be described later.

The presser foot 20 includes a presser foot motor 21 as a “driving means” for moving the presser foot 20 up and down, and a presser foot position detector 22 for detecting the vertical movement position of the presser foot. The presser foot 20 is moved up and down by the driving of the presser foot motor 21, and descends with respect to the sewing product placed on the lower plate 16, thereby applying a pressing force from above to the sewing product, and the sewing product. Hold.
Further, as the position of the presser foot 20, there are a lift position as a position where the presser foot is most lifted and retracted from the needle plate, a presser foot position which is a lower position when holding the presser foot, and a lift position and a presser foot position. An intermediate position, which is a predetermined position between them, is provided. Among these positions, the height of the intermediate position is settable by the operator. The setting of the height of the intermediate position of the presser foot 20 will be described later.
The position of the presser foot 20 is detected by the presser foot position detector 22. As a result, the position of the presser foot 20 is fed back and adjusted so that the presser foot 20 is positioned at the height intended by the operator.

  The pedal 7 functions as “cloth presser position instruction means” for instructing the vertical movement of the presser foot 20. The pedal 7 is provided with a pedal sensor 7a for detecting the depression position of the pedal 7 by the operator. At this time, the depression position of the pedal 7 is provided in three positions corresponding to the lifted position, the intermediate position, and the pressure foot position of the presser foot 20, and the presser foot 20 is operated by the operator when the pedal 7 is operated. It is controlled to a height corresponding to the depressed position.

In the vicinity of the intermediate presser 25, a cloth presser motor 26 that is a drive source for moving the intermediate presser 25 up and down, and an intermediate presser position detector 27 that detects the vertical movement position of the intermediate presser 25 are provided. The intermediate presser 25 moves up and down by driving of the intermediate presser motor 26 and moves to a position close to the workpiece to be sewn held by the cloth presser 20 and the lower plate 16 from above.
When the sewing needle 9a rises again after being lowered with respect to the sewing product, the sewing product may be pulled upward as the sewing needle 9a rises. At this time, the sewing needle 9a is removed from the sewing product by pressing the sewing product pulled upward by the intermediate presser 25 from above.
Further, the position of the intermediate presser 25 is detected by the presser foot position detector 27. As a result, the position of the intermediate presser 25 is fed back and adjusted so that the intermediate presser 25 is positioned at the height intended by the operator.

The control unit 10 includes at least a CPU 11 that performs various processes related to the operation of the sewing machine 100, a ROM 12 that stores various programs and data processed by the CPU 11, and a RAM 13 that serves as a primary storage area for various data processed by the CPU 11. .
The control unit 10 controls the height of the presser foot 20 by controlling the driving of the presser foot motor 21 described above. In addition, the control unit 10 controls the height of the intermediate presser 25 by controlling the driving of the above-described intermediate presser motor 26. Further, the control unit 10 calls the sewing data 30 selected by the touch panel display 4 from the external storage device connected via the media interface 5, controls the driving of the sewing machine motor based on the sewing data 30, and the cloth moving mechanism. The drive of 15 X-axis motors 17 and Y-axis motors 18 is controlled. In this way, the sewing work is performed using the sewing data 30.

  In addition, the control unit 10 controls the touch panel display 4 to display various screens. Further, the control unit 10 performs various processes for commands input via the touch panel display 4. Further, the control unit 10 reads and writes data from an external storage device connected to the media interface 5.

(Create sewing data with touch panel display)
Next, a mechanism for creating the sewing data 30 by input from the touch panel display 4 will be described in detail with reference to FIGS.
FIG. 3 is an explanatory diagram showing an input screen 50 displayed on the touch panel display 4. FIG. 4 is an explanatory view showing a shape point input screen 60 showing a shape point input screen for inputting the needle entry position of the sewing data 30. FIG.

  The input screen 50 includes at least a sewing input button 51 for transitioning to a shape point input screen 60 for inputting a needle drop position of the sewing data 30, and a feed for tracing the needle drop points of the created sewing data 30 in the order of needle drop. A forward button 52, a feed backward button 53 that traces the needle drop point of the sewing data 30 that has been created in the reverse order of the needle drop, a pattern information button 54 that allows various parameters of the entire sewing data 30 to be set, A function selection button 55 for performing various operations on a specific needle drop position of the sewing data 30 and a needle drop position display area 56 for displaying the needle drop position of the sewing pattern on the screen are provided.

When the sewing input button 51 on the input screen 50 displayed on the touch panel display 4 is pressed, the display content of the touch panel display changes to the shape point input screen 60 shown in FIG.
The shape point input screen 60 includes at least a needle drop position display area 65 indicating a needle drop position of the sewing pattern on the screen, a cursor 66 movable on the needle drop position display area 65, and the cursor 66 as a needle drop position display area. A plurality of arrow buttons 61 that move in the respective directions within 65, a midpoint button 62 that designates a midpoint of the needle drop position, an end point button 63 that designates the end position of the needle drop position, and an input of the needle drop position And an enter button 64 for inputting that the operation has ended.

  When one of the arrow buttons 61 on the shape point input screen 60 displayed on the touch panel display 4 is pressed, the cursor 66 in the needle drop position display area 65 moves in a direction corresponding to the pressed arrow button 61. When the midpoint button 62 is pressed, a midpoint (for example, midpoint 67a or midpoint 67b) is recorded at the position where the cursor 66 is displayed, and displayed in the needle entry position display area 65. When the end point button 63 is pressed, the position where the cursor 66 is displayed is recorded as the end point of the needle drop position, and is displayed in the needle drop position display area 65 in the same way as the halfway point.

FIG. 5 is an explanatory diagram showing the input screen 50 in which the needle entry position is displayed on the needle entry position display screen 56.
When the enter button 64 is pressed on the shape point input screen 60 described above, the display content of the touch panel display 4 transitions to the input screen shown in FIG. As shown in FIG. 5, the needle drop position 57 displayed on the needle drop position display screen 56 passes through intermediate points 67 a and 67 b set on the shape point input screen 60, and the end point specified at the position of the cursor 66. It is set to arrive at. That is, by pressing the enter button 64 on the shape point input screen 60, the needle drop position of the sewing data 30 is determined. In this way, the sewing data 30 is created by the input from the touch panel display 4. The created sewing data 30 is stored in an external storage device connected to the media interface 5.

When the feed forward button 52 or the feed backward button 53 is pressed on the input screen 50 shown in FIG. 5, the needle drop position 57 displayed in the needle drop position display area 56 can be traced. At this time, the target needle drop position point 58 is displayed on the line of the needle drop position 57, and when the feed forward button 52 is pressed, the target needle drop position point 58 moves to the next needle drop position, and the feed backward button 53 is When pressed, the target needle drop position point 58 moves to the previous needle drop position.
It is possible to specify the needle drop position by using the forward button 52 or the feed backward button 53, and to input and set commands such as a cloth presser height and a midway stop, which will be described later, before and after the needle drop position.

Next, the structure of the sewing data 30 will be described in detail with reference to FIGS.
FIG. 6 is an explanatory diagram showing the structure of the sewing data 30.
As shown in FIG. 6, the sewing data 30 stored in the external storage device connected to the media interface 5 includes a parameter 31 for each sewing data, a first element 32 of data relating to the needle drop position, and the second and subsequent elements. And an element 33 in the needle drop position. The parameter 31 for each piece of sewing data is a group of parameters indicating basic elements of the sewing data 30. The first element 32 and the element 33 at the needle drop position after the second element are elements of a sewing pattern provided for each sewing process based on the sewing data 30. For example, in the case of the sewing data 30 in which the cloth to be the pocket is sewn on the garment, the step of reversely sewing both ends of the opening of the pocket and the step of performing the line stitching on the side of the pocket are separate elements. The sewing data 30 has at least a parameter 31 and a first element 32 for each piece of sewing data, and an element 33 at the needle drop position after the second element is added depending on the type of sewing performed by the sewing data 30. The first element 32 and the element 33 at the needle drop position after the second element of the data related to the needle drop position will be described later.

  FIG. 7 is an explanatory view showing the structure of the parameter 31 for each piece of sewing data, which is a part of the sewing data 30. The parameter 31 for each sewing data includes at least the sewing data number given to the sewing data 30, the total number of stitches of the sewing data 30, and the sewing range of the sewing data 30 (the movement range of the cloth moving mechanism 15 by the sewing data 30). The sewing data 30 is set to the origin position (the coordinate position in the X-axis direction and the Y-axis direction, which is a reference for the needle drop position), and the sewing data 30 is set to the sewing data 30 and sewing is performed by the sewing machine 100. A presser foot height H1 applied as the height of the intermediate position of the presser foot 20, an edition indicating the software version that created the sewing data 30, a comment regarding the sewing data 30 recorded by the creator of the sewing data 30, Have The parameter 31 for each sewing data is set to an initial value determined when the sewing data 30 is created, but can be individually set by the operator via the touch panel display 4.

Next, a method for setting the presser foot height H1 of the parameter 31 for each sewing data will be described in detail.
FIG. 8 is an explanatory view showing a presser foot height setting screen 70 displayed on the touch panel display 4.
When the pattern information button 54 is pressed on the input screen shown in FIG. 5, the display content of the touch panel display 4 transitions to a parameter 31 setting screen for each sewing data (not shown). When the button for setting the presser foot height H1 is pressed on the setting screen, the display content of the touch panel display 4 transitions to the presser foot height setting screen 70 shown in FIG.
The presser foot height setting screen 70 includes at least a plurality of presser foot height setting buttons 71 for setting the height of the intermediate position of the presser foot 20 by numerical input or increase / decrease from an existing value, and the presser foot 20 currently set. The height of the presser foot display area 72 that displays the height of the intermediate position in 0.1 [mm] units, and the height of the intermediate position of the presser foot 20 that is currently displayed in the presser foot height display area 72 And an enter button 73 to be set.

The height of the intermediate position of the presser foot 20 can be set between 0.0 [mm] and 99.9 [mm], and each of 1 to 0 included in the presser foot height setting button 71 on the presser foot height setting screen 70 is set. When the number button is pressed, the 10th place value, the 1st place value, and the value after the decimal point are set in the order of being pushed down. For example, when the numeric buttons of the presser foot height setting button 71 are pressed in the order of 0, 2, and 3, 2.3 [mm] is set in the presser foot height display area 72. When the up arrow button 71a is pressed, the numerical value is increased by 0.1 from the numerical value displayed in the presser foot height display area 72 before being pressed. When the down arrow button 71b is pressed, the numerical value is decreased by 0.1 from the numerical value displayed in the presser foot height display area 72 before being pressed. However, the height of the intermediate position of the presser foot 20 set in the presser foot height display area 72 by the up arrow button 71a and the down arrow button 71b may exceed 99.9 [mm] or less than 0.0 [mm]. Absent.
In addition, it cannot be overemphasized that the numerical value in the above-mentioned embodiment is an example to the last, and can be changed.

  When the enter button 73 is pressed in a state where the height of the intermediate position of the presser foot 20 displayed in the presser foot height display area 72 of the presser foot height setting screen 70 becomes a desired height, sewing is performed. It is set as the value of the presser foot height H1 of the parameter 31 for each data. The set presser foot height H1 is stored in an external storage device connected to the media interface 5 as a part of the sewing data 30. Thus, the presser foot height H1 of the parameter 31 for each sewing data of the sewing data 30 is set by the operator via the touch panel display 4.

Further, when the sewing work is performed by the sewing data 30 in which the presser foot height H1 is set by the sewing machine 100, the control unit 10 determines the height of the intermediate position of the presser foot 20 set to the presser foot height H1. The height of the intermediate position of the presser foot 20 in the work is set, and the presser foot motor 21 is driven.
That is, by setting the presser foot height H <b> 1 stored as a part of the sewing data 30, the height of the intermediate position of the presser foot 20 associated with the sewing data 30 can be set. That is, the external storage device that stores the presser foot height H1 functions as “intermediate position height storage means”. Further, when the presser foot 20 is positioned at the intermediate position in the sewing work by the sewing data 30, the presser foot 20 is positioned at the intermediate position height of the presser foot 20 set to the presser foot height H1. The control unit 10 that drives the motor 21 functions as a “control unit”.

Next, the temporary stop position that can be provided during the sewing by the sewing data 30 and the intermediate position height of the presser foot at that time will be described in detail with reference to FIG.
FIG. 9 is an explanatory diagram showing the structure of the first element 32 of the sewing data 30.
The first element 32 is at least the type of element indicating the sewing pattern of the first element 32, the number of stitches of the first element 32, and the movement of the cloth movement mechanism 15 between the needle drop position and the next needle drop position. And a movement amount indicating the amount. At this time, as shown in FIG. 9, a presser foot height H2 and a temporary stop command 32a for temporarily stopping the sewing work can be provided between a specific needle drop position and the next needle drop position. It is. Further, when the temporary stop command 32a is set, it is possible to provide a presser foot raising command 32b for raising the presser foot 20 after the temporary stop command 32a.
The temporary stop command 32a is a command for stopping sewing in the middle of sewing. The presser foot raising command 32b is a command for automatically moving the presser foot 20 to an intermediate position when sewing is stopped halfway by the temporary stop command 32a.
The presser foot height H2 is set when the intermediate position is input by the pedal 7 while the sewing is stopped by the temporary stop command 32a, or when the presser foot raising command 32b exists following the temporary stop command 32a. This is a set value for the height at which the presser 20 is moved. At this time, as the presser foot height H2, the data before the temporary stop command 32a is adopted. For example, when the temporary stop command 32a is set at a plurality of locations, the latest value of the presser foot height H2 is adopted.
That is, it is possible to provide a temporary stop command 32a that is a temporary stop command in the middle of the sewing work by the first element 32 that is one step of the sewing work by the sewing data 30. In addition, when the intermediate position is instructed when the presser foot 20 is moved up and down by the temporary stop command 32a, the presser foot height H2 can be set as the intermediate position height.

Next, a procedure for setting a temporary stop command 32a, a presser foot raising command 32b, and a presser foot height H2 that is an intermediate position height during the sewing of the first element 32 of the sewing data 30 will be described in detail with reference to FIG. explain.
FIG. 10 is an explanatory view showing a halfway stop command input screen 75 displayed on the touch panel display 4.
When the function selection button 55 is pressed on the input screen shown in FIG. 5, the display content of the touch panel display 4 transitions to a function selection screen (not shown). The function selection screen is a screen for performing an operation of adding various parameters to the needle drop position of the target needle drop position 58 of the sewing data 30 displayed in FIG. When the halfway stop control command is selected on the function selection screen, the display content of the touch panel display 4 transits to a halfway stop command input screen 75 shown in FIG. When the pause command setting button 78 on the midway stop command input screen 75 is pressed, a pause command 32a is provided between the target needle drop position 58 and the next needle drop position.

  Further, the intermediate stop command input screen 75 includes a presser foot state setting button 76 for selecting whether or not to provide a presser foot raising command 32b for raising the presser foot 20 when the sewing work is temporarily stopped by the temporary stop command 32a. Further, a presser foot height setting button 77 for setting the intermediate position height in the temporary stop command 32a and an enter button 78 for reflecting the contents input from the midway stop command input screen 75 to the sewing data 30 are provided.

  When the presser foot state setting button 76 on the midway stop command input screen 75 is pressed, the display content of the touch panel display 4 selects whether or not to raise the presser foot 20 when the sewing work is paused by the temporary stop command 32a. Transition to a selection screen (not shown). When the setting for raising the presser foot 20 is selected on the selection screen, the presser foot raising command 32b is provided after the temporary stop command 32a, and the display content of the touch panel display 4 transits to the midway stop command input screen 75.

The function selection button 55 is pressed at the needle drop position 58 of the target needle drop position 58 of the sewing data 30 displayed in FIG. 5, and a midway stop control command is selected on the function selection screen, and a halfway stop input screen 75 When the presser foot height setting button 77 is pressed, the display content of the touch panel display 4 transitions to the presser foot height setting screen 70 shown in FIG. At this time, the intermediate position height of the presser foot 20 set on the presser foot height setting screen 70 is set as the presser foot height H2 which is the intermediate position height. When the enter button 73 on the presser foot height setting screen 70 is pressed, the display content of the touch panel display 4 transits to a midway stop command input screen 75 shown in FIG.
Thereafter, when the enter button 78 on the midway stop command input screen 75 is pressed, the temporary stop command 32a, the presser foot raising command 32b and the presser foot height H2 set in the above-described operation are connected to the media interface 5. It is stored as the stored contents of the sewing data 30 stored in the storage device, and is reflected in the first element 32 of the sewing data 30. Thus, the intermediate position height of the presser foot 20 when the temporary stop position is provided during the sewing work by the sewing data 30 can be set.

Further, when the sewing work is temporarily stopped by the temporary stop instruction 32a when the sewing work 30 is performed by the sewing data 30 in which the presser foot height H2 is set without the presser foot raising instruction 32b being set by the sewing machine 100, the pedal is used. 7, when the presser foot is instructed to be positioned at the intermediate position, the control unit 10 causes the presser foot motor to move the presser foot 20 to the intermediate position height of the presser foot 20 set to the presser foot height H2. 21 is driven.
That is, the setting of the presser foot raising command 32b is arbitrary, the presser foot raising command 32b is set, and the temporary stop command 32a and the presser foot height H2 provided in the middle of the sewing data 30 are set. Thus, the height of the intermediate position of the presser foot 20 associated with the temporary stop command 32a of the sewing data 30 can be automatically adjusted during the temporary stop. Further, when the presser foot raising command 32b is not set, the temporary stop command 32a provided in the middle of the sewing data 30 and the presser foot height H2 are set. Only when the pedal is stepped on, the height of the intermediate position of the presser foot 20 associated with the temporary stop command 32a of the sewing data 30 can be adjusted.
That is, the external storage device that stores the presser foot height H2 functions as “intermediate position height storage means”. Further, when the presser foot 20 is positioned at the intermediate position in the sewing work using the sewing data 30, the presser foot 20 is positioned at the intermediate position height of the presser foot 20 set to the presser foot height H2. The control unit 10 that drives the motor 21 functions as a “control unit”.

In the above-described embodiment, the description is limited to the case where the first element 32 is provided with the temporary stop command 32a, the presser foot lifting command 32b, and the presser foot height H2, but a plurality of stop commands are issued in the first element. Needless to say, the same applies to the case of providing or temporary stopping at the element 33 at the needle drop position after the second element.
In addition, when the temporary press command 32a and the presser foot raising command 32b are provided and the presser foot height H2 is not set, the presser foot height H1 set in the parameter 31 for each sewing data of the sewing data 30 is the presser foot height H1. This is applied as the intermediate position height of the presser foot 20 of the ascending command 32b.

Next, the sewing package data 40 will be described in detail with reference to FIG. FIG. 11 is an explanatory view showing the structure of the sewing package data 40.
The sewing package data 40 is data having various parameters relating to a sewing operation provided separately from the sewing data 30. The sewing package data 40 is used in the sewing operation in combination with the sewing data 30. At this time, various corrections are added to the sewing data 30 according to the parameters included in the sewing package data 40, and the setting of the sewing package data 40 has priority for the same type of parameters common to the sewing package data 40 and the sewing data 30. Is applied to. The various parameters of the sewing package data 40 include a presser foot height H3 (see FIG. 11), which is a set value of the height of the intermediate position of the presser foot 20. Therefore, by using the sewing package data 40, the intermediate position height of the presser foot 20 can be set.

The sewing package data 40 can be used in combination with a plurality of different sewing data 30. That is, by using the sewing package data 40, it is possible to add correction based on parameters common to the plurality of sewing data 30 to the sewing work by the sewing data 30. That is, it is possible to omit the setting for applying a common correction to the plurality of sewing data 30.
Furthermore, by providing a plurality of sewing package data 40 and combining a plurality of sewing package data 40 with respect to one sewing data 30, the sewing work by one sewing data 30 is added by different sewing package data 40. It is possible to perform sewing work with different corrections. That is, various parameters of the sewing data 30 can be changed without resetting the sewing data 30 individually.

  The sewing package data 40 includes at least a sewing package data number for identifying a plurality of sewing package data, and a sewing position for correcting the X axis direction and the Y axis direction with respect to the origin position set in the sewing data 30. Using the sewing package data 40, the movement rate of the sewing data, the enlargement / reduction ratio for correcting the sewing range of the sewing data 30 by the magnification, the sewing speed for setting the sewing speed of the sewing work by the sewing data 30, and the sewing package data 40 The presser foot height H3 that sets the intermediate position height of the presser foot 20 when the work is performed and the intermediate presser height that sets the position of the intermediate presser 25 when the sewing work is performed using the sewing package data 40 Have.

The sewing package data 40 can be set in advance to be associated with specific sewing data 30. As a result, it is possible to perform the sewing work by adding correction by various parameters based on the sewing package data 40 in the sewing work using the specific sewing data 30 only by designating the sewing package number.
The sewing package data 40 is stored in an external storage device connected to the media interface 5. That is, the external storage device connected to the media interface 5 functions as a “second storage unit”.

Next, a method for setting the presser foot height H3 of the sewing package data 40 will be described in detail with reference to FIG. FIG. 12 is an explanatory view showing a sewing package data setting screen 80 displayed on the touch panel display 4.
The sewing package data setting screen 80 has at least a presser foot height setting button 81 for setting a presser foot height H3 that is an intermediate position height of the presser foot 20 at the time of sewing work using the sewing package data 40. When the presser foot height setting button 81 on the sewing package data setting screen 80 is pressed, the display content of the touch panel display 4 transits to the presser foot height setting screen 70 shown in FIG. At this time, the intermediate position height of the presser foot 20 set on the presser foot height setting screen 70 is set as the presser foot height H3 which is the intermediate position height of the sewing package data 40. When the enter button 73 on the presser foot height setting screen 70 is pressed, the display content of the touch panel display 4 is changed to the sewing package data setting screen 80 shown in FIG. At this time, the presser foot height H3 is stored as a parameter of the sewing package data 40 stored in the external storage medium connected to the media interface 5 and is reflected in the sewing package data 40.

Further, when the sewing work is performed by the sewing package data 40 in which the presser foot height H3 is set by the sewing machine 100, the control unit 10 determines the height of the intermediate position of the presser foot 20 set to the presser foot height H3. At the height of the intermediate position of the presser foot 20 in the sewing work, the presser foot motor 21 is driven.
That is, by setting the presser foot height H3 stored as a part of the sewing package data 40, the height of the intermediate position of the presser foot 20 associated with the sewing package data 40 can be set. Further, when the presser foot 20 is positioned at the intermediate position in the sewing work by the sewing package data 40, the presser foot 20 is positioned at the intermediate position height of the presser foot 20 set to the presser foot height H3. The controller 10 that drives the motor 21 functions as “control means”.

Next, a sewing operation using the sewing package data 40 and the sewing data 30 will be described. FIG. 13 is an explanatory view showing a package sewing screen 85 displayed on the touch panel display 4.
The package sewing screen 85 has at least a package number selection area 86 for selecting a sewing package data number of the sewing package data 40 in the sewing work. The package sewing screen 85 displays a package number display area 87 for displaying the sewing package data number of the selected sewing package data 40, and the sewing data number of the sewing data 30 associated with the selected sewing package data 40. And a sewing data number display area 88.

In the package number selection area 86, an icon 86a indicating the sewing package data number of the sewing package data 40 is displayed. At this time, the specific sewing data 30 is associated with the sewing package data 40 having the sewing package data number on which the icon 86a is displayed.
When one of the icons 86a displayed in the package number selection area 86 of the package sewing screen 85 is pressed, the sewing package data number of the sewing package data 40 corresponding to the icon 86a is displayed in the package number display area 87. Further, the sewing data number of the sewing data 30 associated with the sewing package data 40 corresponding to the icon 86a is displayed in the sewing data number display area 88. As a result, the sewing work can be performed using the sewing package data 40 corresponding to the icon 86a and the sewing data 30 associated with the sewing package data 40 corresponding to the icon 86a.

  If the presser foot height H1 and / or the presser foot height H2 are set in the sewing data 30 associated with the sewn package data 40, the sewing machine 100 sets the presser foot height H3 set in the sewn package data 40. Is applied with priority. That is, the intermediate position height of the presser foot 20 in the sewing work using the sewing package data 40 is based on the presser foot height H3.

  Next, a procedure of sewing work by the sewing machine 100 will be described in detail. FIG. 14 is a flowchart showing a process flow of position control of the presser foot 20 by operating the pedal 7. FIG. 15 is a sub-flow diagram showing a procedure for determining the height of the intermediate position of the presser foot 20 based on the sewing data 30 and the sewing package data 40 in step S4 of the flowchart of FIG.

When the power of the sewing machine 100 is turned on, the control unit 10 controls each part of the sewing machine 100 to move to the initial position. In addition, a screen (not shown) for inputting various instructions related to the sewing work is displayed on the touch panel display 4.
When the operator selects the specific sewing data 30 or the sewing package data 40 associated with the specific sewing data from the touch panel display 4, the sewing machine 100 calls the sewing data 30 or the sewing package data 40 selected by the operator.

  Thereafter, the operator operates the pedal 7 in order to set the sewing product on the cloth holding mechanism. The presser foot 20 of the cloth holding mechanism moves to a position corresponding to the stepping position of the pedal 7. As shown in the flow of FIG. 14, when the position of the pedal 7 is the raised position (step S <b> 1: raised), the control unit 10 controls the driving of the cloth presser motor 21 so that the presser foot 20 is positioned at the raised position. (Step S2). When the position of the pedal 7 is the lowered position (step S1: lowered), the control unit 10 controls the driving of the presser foot motor 21 so that the presser foot 20 is positioned at the presser foot position (step S3). When the position of the pedal 7 is the intermediate position (step S1: intermediate), the control unit 10 acquires the height of the intermediate position of the selected sewing data 30 or sewing package data 40 (step S4), and The driving of the presser foot motor 21 is controlled so that the presser foot 20 is positioned at the height (step S5).

At this time, as shown in the sub-flow of FIG. 15, the above-described step S4 adopts the presser foot height H3 as the intermediate position when the sewing package data 40 is selected (step S11: YES) (step S12). If the sewing package data 40 is not selected (step S11: NO), it is determined whether or not the current stop position is a midway stop (stop by the temporary stop command 32a) (step S13). At this time, if the current stop position is not an intermediate stop (step S13: NO), the presser foot height H1 is adopted as the intermediate position (step S14). If the current stop position is an intermediate stop (step S13: YES), it is determined whether or not the presser foot height H2 is set (step S15). When the presser foot height H2 is set (step S15: YES), the presser foot height H2 is adopted as the intermediate position (step S16). If the presser foot height H2 is not set (step S15: NO), the presser foot height H1 is adopted as the intermediate position (step S14).
Further, as a process irrelevant to the depression of the pedal 7, sewing is executed according to the sewing data, a halfway stop is performed based on the temporary stop command 32a, and the presser foot raising command 32b is attached to the temporary stop command 32a. Regardless of the depression of the pedal 7, the cloth presser 20 is automatically positioned at the presser foot height H2.

In general, when setting the workpiece, the presser foot 20 is once raised to the raised position, the workpiece is placed on the lower plate 16, and the presser foot 20 is lowered to the intermediate position. Thereafter, the position of the sewing product is finely adjusted, and the presser foot 20 is lowered to the presser foot position while pressing the sewing product by hand, and the sewing product is held by the cloth holding mechanism.
Thereafter, when the pedal 6 is operated, the control unit 10 causes the sewing motor 30 and the X-axis motor 17 of the cloth moving mechanism 15 and the Y-axis motor 18 based on the sewing data 30 or the sewing package data 40 selected by the operator. The sewing machine 100 performs sewing work by controlling the driving of each part. If the sewing data 30 associated with the sewing data 30 or the sewing package data 40 includes a presser foot raising command 32b accompanying a halfway stop, the operator operates the pedal 7 in the same manner as in the above flow and subflow. Based on the above, the presser foot 20 is moved up and down.
When sewing by the sewing data 30 or the sewing package data 40 is finished and the sewing data 30 or the sewing package data 40 for performing another sewing operation is selected, the selected sewing data 30 or sewing package data is selected. The position control of the presser foot 20 is performed based on the presser foot heights H1, H2, and H3 stored in 40.

(Effects of the sewing machine according to the above embodiment)
According to the above-described embodiment, when the movement of the presser foot 20 to the intermediate position is instructed by the pedal 7, the control unit 10 presses the presser foot height H 1 stored in the external storage device connected to the media interface 5. The presser foot motor 21 is controlled to move the presser foot 20 to the intermediate position height of either the presser foot height H2 or the presser foot height H3. At this time, the presser foot height H1, the presser foot height H2, and the presser foot height H3 are stored in the external storage device as intermediate positions of the presser foot 20 associated with the sewing data 30 being sewn. The presser foot 20 is moved so that the intermediate position height associated with the sewing data 30 is reached. Therefore, the presser foot 20 is positioned at the optimum intermediate position height for the sewing data 30, and the displacement of the workpiece to be sewn when the presser foot 20 moves from the intermediate position to the presser foot position is minimized. This makes it possible to greatly increase the efficiency of sewing work with the sewing machine. Further, when the fabric position is finely adjusted using the fabric retainer 20 at the intermediate position, the fabric retainer 20 can be set to an appropriate intermediate position according to the sewing data, so that the fabric position adjustment is performed with higher accuracy. This makes it possible to improve the sewing quality.
Further, since the presser foot height H1, the presser foot height H2 and the presser foot height H3 are stored in the external storage device, the sewing work with the sewing data 30 different from the sewing data 30 for performing sewing is performed. After that, even when a sewing operation is performed using the sewing data 30 for performing sewing from now on, the presser foot height that is an intermediate position height automatically associated with the sewing data 30 for performing sewing from now on The intermediate position height of the presser foot 20 is controlled to any one of H1, presser foot height H2, and presser foot height H3. Therefore, when the sewing work with the sewing data 30 different from the sewing data 30 for performing the sewing is performed, the problem that the intermediate position height of the presser foot had to be set again in the prior art was solved. This increases the efficiency of sewing operations with the sewing machine.

Further, the presser foot height H1 and the presser foot height H2 stored in the external storage device are a part of the sewing data 30. Therefore, when performing the sewing work using the sewing data 30, the labor of collating the sewing data 30 with the presser foot height H1 and the presser foot height H2 can be omitted, and the efficiency of the sewing work performed by the sewing machine is significantly increased. Further, it is not necessary to separately prepare intermediate position height storage means, and the presser foot height H1 and the presser foot height H2 associated with the sewing data 30 can be used more easily and comfortably.
Furthermore, the sewing data 30 can be used by a plurality of sewing machines at a time by copying. Therefore, when performing the sewing work based on the same sewing data 30 with a plurality of sewing machines, it is possible to eliminate the problem that the intermediate position height of the presser foot had to be set for each sewing machine in the conventional technique, and sewing with the sewing machine The efficiency of the work is greatly increased.

  Further, the sewing data 30 includes a temporary stop command 32a for stopping the sewing in the middle of sewing and a presser foot height command Hb of the presser foot raising command 32b accompanying the temporary stop command 32a, and when the sewing operation is stopped by the temporary stop command 32a. The presser foot motor 21 is controlled by the control unit 10 so that the presser foot 20 is positioned at an intermediate position height of the presser foot 20 indicated by the presser foot height H2. As a result, even if the thickness of the material to be sewn is changed by adding a cloth in the middle of sewing by the sewing data 30, the cloth presser height H 2 that is the optimum intermediate position of the presser foot 20 is set in the sewing data 30. Corresponding settings can be made. Therefore, in the prior art, the problem that the height of the intermediate position of the presser foot had to be set again during the sewing work can be solved, and the efficiency of the sewing work by the sewing machine is greatly increased.

Further, when the sewing work is performed by combining the sewing data 30 and the sewing package data 40 and the pedal 7 instructs to place the presser foot 20 in the intermediate position, the presser foot 20 is stored in the sewing package data 40. The presser foot motor 21 is controlled by the control unit 10 so as to be positioned at the presser foot height H3 which is the height of the intermediate position of the presser foot 20. Accordingly, when it is desired to use the presser foot height H3 which is the setting of the intermediate position height of the common presser foot 20 for a plurality of different sewing data 30, the setting of the presser foot height H3 of the sewing package data 40 is performed. It is not necessary to set the height of the intermediate position for each sewing data 30. Therefore, the efficiency of sewing work by the sewing machine is significantly increased.
Further, by using any one of a plurality of sewing package data 40 in combination with one sewing data 30, it is possible to set different presser foot heights H3 for one sewing data 30 and various kinds of sewing. The parameters can be used in combination. When it is desired to correct the sewing data 30, the sewing data 30 can be used without being rewritten. Therefore, the efficiency of sewing work by the sewing machine is significantly increased.

(Other)
In the above-described embodiment, when the sewing package data 40 is used, the presser foot height H3 of the sewing package data 40 is automatically applied. However, the presser foot height H3 of the sewing package data 40 and the sewing data are used. When 30 presser foot heights H1 and H2 are set individually, “selection means” that can be selected to preferentially adopt one of them may be provided. The “selecting means” in this case is provided by a method such as a cloth presser intermediate position height priority setting screen (not shown). When the intermediate position height of the presser foot 20 is set in each of the sewing package 40 and the sewing data 30, the intermediate position of the presser foot intermediate position height priority setting screen is displayed. This is a screen that can be set to adopt height preferentially.
In this case, in addition to the effect of the above-described embodiment, when both the presser foot height H1 of the sewing data 30 or the presser foot heights H1 and H2 and the presser foot height H3 of the sewing package data 40 are set. Can be selected and set on the intermediate position height setting priority selection screen so that either one is preferentially adopted. Therefore, it becomes possible to set and operate the intermediate position height of the presser foot 20, which is more flexible, and the operability of the sewing machine is greatly improved.

  The sewing machine is not limited to the above-described embodiment, and other sewing machines may be used as long as sewing is performed using sewing data. For example, an electronically controlled sewing machine with a button may be used.

  The operation by the touch panel display 4 may be performed by other methods. For example, a sewing machine and a personal computer may be connected via an interface, and various operations may be performed from the personal computer. In this case, the sewing data may be called from a storage device provided in the personal computer.

  Further, the sewing data 30 and the sewing package data 40 are not limited to the external storage device connected to the media interface 5. For example, the ROM 12 of the control unit 10 is set as a rewritable storage medium such as an EPROM and is set to be writable therein. Also good.

  Further, when the sewing package data 40 is used, when the presser foot heights H1 and H2 are set in the sewing data 30, the presser foot heights H1 and H2 of the sewing data 30 may be used.

  Further, the data of the cloth presser height H1 included in the sewing data 30 clarifies the association between the sewing data and the cloth presser height by being included in the sewing data 30. However, the present invention is not limited to this. . For example, the cloth presser height H1 is stored in a separate memory or storage area as separate data separated and independent from the sewing data 30, and a plurality of sewing data and a plurality of cloth presser height data are prepared, respectively. The sewing machine may be provided with a control means for reading out the corresponding cloth presser height data each time the button is selected and executing sewing in an appropriate combination.

1 is a perspective view showing an embodiment of a sewing machine 100 according to the present invention. It is a block diagram which shows the main structures of the sewing machine 100 of this invention. It is explanatory drawing which shows the input screen 50 displayed on the touchscreen display. It is explanatory drawing which shows the shape point input screen 60 which shows the shape point input screen which inputs the needle drop position of the sewing data. It is explanatory drawing which shows the input screen 50 by which the needle drop position was displayed on the needle drop position display screen. 3 is an explanatory diagram showing a structure of sewing data 30. FIG. It is explanatory drawing which shows the structure of the parameter 31 for every sewing data which is a part of sewing data 30. FIG. It is explanatory drawing which shows the presser foot height setting screen 70 displayed on the touch panel display 4. FIG. FIG. 6 is an explanatory diagram showing a structure of a first element 32 of sewing data 30. It is explanatory drawing which shows the midway stop command input screen 75 displayed on the touch panel display 4. FIG. It is explanatory drawing which shows the structure of the sewing package data. FIG. 11 is an explanatory view showing a sewing package data setting screen 80 displayed on the touch panel display 4. It is explanatory drawing which shows the package sewing screen 85 displayed on the touch panel display. It is a flowchart which shows the flow of a process of the position control of the work clamp 20 by operation of the pedal 7. FIG. FIG. 15 is a sub-flow diagram illustrating a procedure for determining the height of the intermediate position of the presser foot 20 based on the sewing data 30 and the sewing package data 40 in step S4 of the flowchart of FIG. 14.

Explanation of symbols

4 Touch Panel Display 5 Media Interface 10 Control Unit 15 Cloth Movement Mechanism 16 Lower Plate 20 Cloth Presser 21 Cloth Presser Motor 30 Sewing Data 40 Sewing Package Data 70 Presser Height Setting Screen 100 Sewing Machine H1, H2, H3 Presser Height

Claims (3)

A needle up-and-down movement mechanism for moving the sewing needle up and down;
A cloth holding mechanism having a cloth presser that holds the sewing object by pressing it from above;
A cloth moving mechanism for moving the workpiece by allowing the cloth presser and the sewing needle to move relative to each other in a direction intersecting the vertical movement direction of the sewing needle;
First storage means for storing a plurality of sewing data including at least a plurality of needle drop positions in sewing, their order, and a pause command for stopping the sewing in the middle of sewing ;
In a sewing machine that forms a seam on an article to be sewn by driving the needle up-and-down moving mechanism and the cloth moving mechanism according to the selected sewing data,
Drive means for driving the presser foot to at least the height of the presser foot position, the raised position and the intermediate position;
Pressure foot position, the presser foot position instruction means for inputting an instruction to move the presser foot to the raised position or the intermediate position,
Intermediate position height storage means for storing the height of the intermediate position associated with each piece of sewing data and the presser foot height at the time of temporary stop associated with each piece of sewing data ;
And controls so that moving move said the height presser foot intermediate position associated with the sewing data is performing sewing to be instructed to the intermediate position of the presser foot by the presser foot position indicating means Control means for controlling to move the presser foot to the height of the presser foot at the time of the temporary stop after sewing is executed according to the sewing data and stopped according to the temporary stop command of the sewing data. Characteristic sewing machine. Second storage means for storing sewing package data including various sewing parameters including a setting of a height of an intermediate position of the presser foot that can be shared with the plurality of sewing data;
The control means, when executing the combination of the sewing data and the sewing package data, when the cloth presser moves to an intermediate position by the driving means, the cloth presser stored in the sewing package data. The sewing machine according to claim 1, wherein the sewing machine is controlled to move the presser foot to a height of an intermediate position. A needle up-and-down movement mechanism for moving the sewing needle up and down;
A cloth holding mechanism having a cloth presser that holds the sewing object by pressing it from above;
A cloth moving mechanism for moving the workpiece by allowing the cloth presser and the sewing needle to move relative to each other in a direction intersecting the vertical movement direction of the sewing needle;
First storage means for storing a plurality of sewing data including at least a plurality of needle drop positions and their order in sewing,
In a sewing machine that forms a seam on an article to be sewn by driving the needle up-and-down moving mechanism and the cloth moving mechanism according to the selected sewing data,
Drive means for driving the presser foot to at least the height of the presser foot position, the raised position and the intermediate position;
A presser foot position indicating means for inputting an instruction to move the presser foot to the presser foot position, the raised position or the intermediate position;
Intermediate position height storage means for storing the height of the intermediate position stored as a part of each sewing data;
Control means for controlling the cloth presser to move to the height of the intermediate position associated with the sewing data being sewn when the cloth presser position instruction means instructs the movement to the intermediate position of the presser foot. When,
Second storage means for storing sewing package data including various sewing parameters including setting of the height of the intermediate position of the presser foot that can be shared with the plurality of sewing data;
Selection means for setting the priority application order so as to be selectable between the height of the intermediate position of the presser foot stored as part of the sewing data and the height of the intermediate position of the presser foot stored in the sewing package data; With
The control means controls to move the cloth presser to a height of an intermediate position of the presser foot stored in the sewing data and the sewing package data according to the priority application order set by the selection means. Sewing machine.

Images