CN112575459A - Sewing device - Google Patents

Abstract

The present invention relates to a sewing device. The sewing device is provided with a needle bar mechanism, a shuttle mechanism, a moving mechanism and an up-down mechanism. The moving mechanism moves the shuttle mechanism and the needle bar mechanism in a direction parallel to the horizontal direction with respect to the sewing object. The vertical mechanism can move the needle bar mechanism to a lower position and an upper position, the lower position is a vertical position where the needle bar mechanism can be located when sewing the sewing object, and the upper position is higher than the lower position. The sewing device sets the vertical position of the needle bar mechanism as the lower position or the upper position when the needle bar mechanism is in idle feeding, and the idle feeding means that the needle bar mechanism and the shuttle mechanism are moved in the horizontal direction relative to the sewing object by driving the moving mechanism without moving the needle bar up and down by the needle bar mechanism.

Description

Sewing device

Technical Field

The present invention relates to a sewing device.

Background

The sewing device disclosed in japanese patent laid-open No. 2000-116975 includes a needle bar mechanism, a shuttle mechanism, a moving mechanism, and an up-down mechanism. The needle bar mechanism has a needle bar to which a needle can be attached at a lower end, and can move the needle bar up and down. The shuttle mechanism is arranged below the needle bar mechanism and is provided with a shuttle. The moving mechanism moves the shuttle mechanism and the needle bar mechanism in a first direction and a second direction parallel to the horizontal direction. The vertical mechanism can move the needle bar mechanism to a lower position and an upper position, the lower position is a vertical position where the needle bar mechanism is located when sewing the sewing object, and the upper position is located above the lower position.

The sewing device repeats the following processes: after one sewing operation is completed, the vertical position of the needle bar mechanism is moved from the lower position to the upper position, and after the next sewing start position is reached, the vertical position of the needle bar mechanism is moved from the upper position to the lower position. It takes time to perform the sewing operation according to the change of the vertical position of the needle bar mechanism by the sewing device.

Disclosure of Invention

The invention aims to provide a sewing device which can shorten the sewing operation time compared with the prior art.

The sewing device of claim 1 comprises: a needle bar mechanism having a needle bar to which a needle can be attached at a lower end, the needle bar mechanism being capable of moving the needle bar up and down; a shuttle mechanism disposed below the needle bar mechanism and having a shuttle; a moving mechanism that moves the shuttle mechanism and the needle bar mechanism in a direction parallel to a horizontal direction with respect to a sewing object; and an up-down mechanism capable of moving the needle bar mechanism to a lower position and an upper position, the lower position being a position in an up-down direction where the needle bar mechanism is located when the sewing object is sewn, the upper position being located above the lower position, the shuttle mechanism and the needle bar mechanism located at the lower position being moved relative to the sewing object by the moving mechanism, and the shuttle and the needle bar being operated in synchronization with each other to sew the sewing object, wherein the sewing apparatus comprises: a setting unit that sets a position of the needle bar mechanism in the idle feed, which is a position where the needle bar mechanism is driven without moving the needle bar up and down, to the lower position or the upper position, and moves the needle bar mechanism and the shuttle mechanism in a horizontal direction with respect to the sewing object; and a movement control unit that controls the vertical mechanism in accordance with the setting of the setting unit, and moves the vertical position of the needle bar mechanism during the idle feed to the lower position or the upper position. The sewing device can set the vertical position of the needle bar mechanism in idle feeding as any one of the lower position and the upper position. Therefore, the sewing device can shorten the time of the sewing operation as compared with the conventional device in which the vertical position of the needle bar mechanism is uniformly set to the upper position during the idle feeding by appropriately setting the vertical position of the needle bar mechanism during the idle feeding.

The sewing device according to claim 2 may further include an acquisition unit that acquires sewing data for forming a stitch on the sewing object, wherein the setting unit may set a position of the needle bar mechanism included in the sewing data acquired by the acquisition unit and indicating which position is one of the lower position and the upper position in the idle feed data of the idle feed, and the movement control unit may control the upper and lower mechanisms according to the setting of the setting unit to move the upper and lower positions of the needle bar mechanism at the time of the idle feed according to the sewing data to the lower position or the upper position. The sewing device can set the vertical position of the needle bar mechanism when the needle bar mechanism is empty-fed according to sewing data to be any one of the vertical position and the vertical position. Therefore, when the sewing device performs sewing according to the sewing data including the idle feeding data, the sewing operation time can be shortened compared with the prior device which makes the vertical position of the needle bar mechanism uniformly at the upper position during the idle feeding.

The setting unit of the sewing device according to claim 3 may set which of the lower position and the upper position the vertical position of the needle bar mechanism is located when the needle bar mechanism and the shuttle mechanism are moved to a position corresponding to a predetermined origin position with respect to the sewing object by the air feed. The sewing device can set the position of the needle bar mechanism in the vertical direction as the lower position or the upper position when the original point is conveyed, wherein the original point conveying means that the needle bar moves to the position of the specified original point position relative to the sewing object by the idle conveying. Therefore, the sewing device can shorten the time of sewing operation when being transported at the original point compared with the prior device which makes the vertical position of the needle bar mechanism uniformly at the upper position.

The sewing device according to claim 4 may further include: a beam portion that supports the needle bar mechanism so that the needle bar mechanism can move in a first direction parallel to a horizontal direction; and a holding mechanism having a holding portion that holds the sewing object at a position below the needle bar mechanism at the upper position, the moving mechanism including: a conveying mechanism for conveying the shuttle mechanism and the needle bar mechanism relative to the sewing object along the first direction; and a transport mechanism that transports the holding mechanism in a second direction parallel to the horizontal direction and orthogonal to the first direction, wherein the beam portion supports the needle bar mechanism on one side in the second direction with respect to the needle bar mechanism, and the setting portion sets a position of the needle bar mechanism in the upper direction when a moving path of the needle bar with respect to the sewing object during the idle transport passes by one side in the second direction or the other side in the second direction with respect to the holding portion. The sewing device can set the position of the needle bar mechanism in the vertical direction at the upper position when the moving path of the needle bar relative to the sewing object passes through the outer part of one side of the holding part in the second direction or the outer part of the other side of the holding part in the second direction. The sewing device can avoid the collision of the needle bar mechanism and the holding part in the moving process of the moving path when the moving path of the needle bar relative to the sewing object crosses the holding part.

The sewing device according to claim 5 may further include an upper holding portion that holds the vertical position of the needle bar mechanism at the upper position after the idle feeding when the movement control portion performs the idle feeding in a state in which the vertical position of the needle bar mechanism is set at the upper position according to the setting of the setting portion and the idle feeding is performed to a position on one side of the needle bar mechanism in the second direction with respect to the holding portion. Since the sewing device maintains the vertical position of the needle bar mechanism at the upper position after the empty feed, the operator does not need to change the vertical position of the needle bar mechanism from the lower position to the upper position when the operator performs the operation after setting the vertical position of the needle bar mechanism to the upper position, such as the replacement of the sewing object. Therefore, the sewing device can save time for changing the vertical position of the needle bar mechanism from the lower position to the upper position after the idle feeding.

The sewing device according to claim 6 may further include a lower moving portion that moves the vertical position of the needle bar mechanism to the lower position after the idle feed when the movement control portion performs the idle feed in a state where the vertical position of the needle bar mechanism is set to the upper position according to the setting of the setting portion and the idle feed is performed to a position where the needle bar is located on the other side in the second direction with respect to the holding portion. The sewing device sets the vertical position of the needle bar mechanism at the lower position after the empty feeding, so that an operator does not need to change the vertical position of the needle bar mechanism from the upper position to the lower position in order to perform the operation around the needle bar mechanism. Therefore, the sewing device can save time for changing the vertical position of the needle bar mechanism from the upper position to the lower position after the idle feeding.

In the sewing device according to claim 7, the setting unit may set whether or not the needle bar mechanism is moved by the lower moving unit, and when the setting unit sets that the needle bar mechanism is moved by the lower moving unit, the lower moving unit may move the vertical position of the needle bar mechanism to the lower position after the idle feed. The sewing device can select which position of the lower position and the upper position the vertical position of the needle bar mechanism is set to after the idle feeding, so that the operator can set the vertical position of the needle bar mechanism after the idle feeding according to the operation content.

The sewing device according to claim 8 may further include a notification unit that notifies a warning after the idle feed and before the lower moving unit moves the vertical position of the needle bar mechanism to the lower position. The sewing device can inform an operator that the lower moving part needs to move the needle bar mechanism from the upper position to the lower position.

Drawings

Fig. 1 is a perspective view of a sewing apparatus 1.

Fig. 2 is a perspective view of the needle bar mechanism 6 and the shuttle mechanism 7.

Fig. 3 (a) is a front view of the sewing device 1 when the needle bar mechanism 6 is at a lower position, and fig. 3 (B) is a front view of the sewing device 1 when the needle bar mechanism 6 is at an upper position.

Fig. 4 (a) is a plan view of the sewing device 1 when the needle bar mechanism 6 is at the left front position, and fig. 4 (B) is a plan view of the sewing device 1 when the needle bar mechanism 6 is at the left rear position.

Fig. 5 is a block diagram showing an electrical configuration of the sewing apparatus 1.

Fig. 6 (a) is an explanatory view of stitches h1 to h15 and empty feed paths j2 to j15 formed according to sewing data E of the specific example, and fig. 6 (B) is a cross-sectional view of line F-F in fig. 6 (a) in the viewing direction.

Fig. 7 is an explanatory diagram of the sewing data E.

Fig. 8 is a flowchart of the setting process.

Fig. 9 is an explanatory diagram of the screen D1 and the screen D2.

Fig. 10 is a flowchart of the creation process.

Fig. 11 is an explanatory diagram of the screen D3 and the sewing data E after the attribute setting.

Fig. 12 is an explanatory diagram of the screen D4.

Fig. 13 is an explanatory diagram of the screen D5 and the sewing data E after the attribute setting.

Fig. 14 is an explanatory diagram of the screen D6.

Fig. 15 is a flowchart of the origin detection processing.

Fig. 16 is a flowchart of the determination process.

Fig. 17 is a flowchart of the maintenance process.

Fig. 18 is a flowchart of the threading process.

Fig. 19 is a flowchart of the move process.

Fig. 20 is a flowchart of the sewing process.

Detailed Description

The sewing apparatus 1 of the present invention will be described. In the following description, the left and right, front and back, and up and down indicated by arrows in the drawings are used. As shown in fig. 1 to 5, the sewing device 1 is a gate type, and includes a base portion 2, a column portion 3, a column portion 4, a beam portion 5, a needle bar mechanism 6, a vertical mechanism 66, a shuttle mechanism 7, a holding mechanism 8, a conveying mechanism 9, a conveying mechanism 10, and an operation portion 11.

The seat 2 includes a base 21, a holding plate 22, an opening 24, an opening 25, a bellows 26, a bellows 27, a frame 28, and a lower rail 29. The base 21 has a substantially rectangular parallelepiped shape. The holding plate 22 constitutes an upper surface of the base 21 and extends parallel to the horizontal plane. The holding plate 22 has an opening 23 extending in the left-right direction. The opening 24 extends in the front-rear direction in the vicinity of the left end of the holding plate 22. The opening 25 extends in the front-rear direction in the vicinity of the right end of the holding plate 22. Each of the openings 24 and 25 extends in a rectangular shape in plan view so as to straddle between the front end and the rear end of the holding plate 22, and is open upward. The bellows 26 covers the opening 24, and the bellows 27 covers the opening 25. The frame 28 is a lattice-shaped structure, and supports the base 21 from below. The lower rail 29 extends in the left-right direction below the holding plate 22. The lower rail 29 supports the shuttle mechanism 7 in such a manner that the shuttle mechanism 7 can move left and right. Below the holding plate 22 of the base unit 2, a lower belt 94, a lower spline shaft 34, and a shuttle mechanism 7, which will be described later, are disposed.

The pillar portion 3 and the pillar portion 4 are each substantially quadrangular prism-shaped. The column part 3 extends upward from a position forward of the center in the front-rear direction of the left end part of the seat part 2. The column part 4 extends upward from a position forward of the center in the front-rear direction of the right end part of the seat part 2. The column section 3 and the column section 4 are separated in the left-right direction so as to rest the holding plate 22 therebetween. The synchronization mechanism 31 is a mechanism for synchronously driving the needle bar mechanism 6 and the shuttle mechanism 7, and includes a main motor 32, an upper spline shaft 33, a lower spline shaft 34, and a transmission mechanism, which will be described later. The main motor 32 is supported by the column part 3. The upper spline shaft 33 and the lower spline shaft 34 extend in the left-right direction between the column section 3 and the column section 4. The transmission mechanism of the synchronizing mechanism 31 is housed in the column portion 3, and transmits the power of the main motor 32 to the upper spline shaft 33 and the lower spline shaft 34. The conveyance mechanism 9 can move the shuttle mechanism 7 and the needle bar mechanism 6 in the horizontal direction parallel to the horizontal direction with respect to the sewing object, and includes an upper belt 93, a lower belt 94, an X motor 95, and a transmission mechanism, which will be described later. The X motor 95 is a pulse motor and is supported by the column part 4. The transmission mechanism of the conveyance mechanism 9 is housed in the column section 4, and transmits the power of the X motor 95 to the upper belt 93 and the lower belt 94. The upper belt 93 is fixed to the back surface of the needle bar mechanism 6. The lower belt 94 is fixed to the back of the shuttle mechanism 7. The shuttle mechanism 7 and the needle bar mechanism 6 move left and right in accordance with the rotation of the X motor 95.

The beam portion 5 extends in the left-right direction so as to straddle between the column portion 3 and the column portion 4. The beam portion 5 supports the needle bar mechanism 6 on one side (rear) in the front-rear direction with respect to the needle bar mechanism 6 so that the needle bar mechanism 6 can move in the left-right direction parallel to the horizontal direction. The beam section 5 has a housing 51, a bellows section 52 and an upper rail 53. The case 51 extends so as to straddle between the upper end of the column part 3 and the upper end of the column part 4 and between the rear end of the column part 3 and the rear end of the column part 4. The bellows portion 52 is provided on both the right and left sides of the needle bar mechanism 6 at the front end portions of the support portion 3, the support portion 4, and the housing 51. The upper rail 53 is a rod-like member extending in the right-left direction and is provided between the column part 3 and the column part 4. The upper rail 53 supports the needle bar mechanism 6 so that the needle bar mechanism 6 can move in the left-right direction. The housing 51 covers the upper rail 53 and the upper and rear sides of the upper spline shaft 33 of the synchronizing mechanism 31. The bellows 52 covers the upper rail 53 and the front side of the upper spline shaft 33. The bellows 52 extends and contracts in accordance with the left-right movement of the needle bar mechanism 6.

The needle bar mechanism 6 is provided on the other (front) side in the front-rear direction with respect to the beam portion 5. The needle bar mechanism 6 includes a housing 60, an upper shaft 61, a transmission mechanism 62, a needle bar 63, a presser foot 64, and a presser foot motor 68, and can move the needle bar 63 up and down. The housing 60 has a box shape, and houses the upper shaft 61. The rear surface of the housing 60 is coupled to the upper belt 93, and the housing 60 is supported by the upper rail 53. The needle bar mechanism 6 is movable left and right along the upper rail 53 in the beam portion 5 by the driving of the conveyance mechanism 9. The upper shaft 61 extends in the left-right direction. The transmission mechanism 62 transmits the power of the upper spline shaft 33 to the upper shaft 61. The needle bar 63 extends in the vertical direction, and can be fitted with a needle 65 at its lower end. The needle bar 63 is connected to the upper shaft 61, and the needle bar 63 moves up and down between the upper dead point and the lower dead point by the driving of the main motor 32. The presser foot 64 has a through hole through which the needle 65 passes in accordance with the vertical movement of the needle bar 63, and the presser foot 64 intermittently presses the sewing object from above. The presser foot motor 68 is a pulse motor, and moves the presser foot 64 up and down in synchronization with the up and down movement of the needle bar 63.

The vertical mechanism 66 can move the needle bar mechanism 6 to a lower position (fig. 3 a) where the needle bar mechanism 6 is located when sewing the object to be sewn and an upper position (fig. 3B) above the lower position. The up-down mechanism 66 has an air cylinder 67, and the up-down mechanism 66 moves the needle bar mechanism 6 up and down using the air cylinder 67 as a drive source. When the needle bar mechanism 6 is in the lower position, the needle 65 can pass through the needle accommodating hole 75. When the needle bar mechanism 6 is at the upper position, the needle bar 63 does not move up and down, and the lower end of the needle 65 and the lower end of the presser foot 64 are positioned above a holding portion 80 of the holding mechanism 8 described later.

The shuttle mechanism 7 is disposed below the needle bar mechanism 6 and inside the housing unit 2. The shuttle mechanism 7 has a housing 70, a lower shaft 71, a transfer mechanism 72, and a shuttle 73. The housing 70 has a box shape and has a needle plate 74 at the left upper end. The needle plate 74 has a needle receiving hole 75 through which the needle 65 can pass. Needle receiving bore 75 is located below needle shaft 63. The rear surface of the housing 70 is coupled to the lower belt 94. The lower spline shaft 34 penetrates the housing 70. The housing 70 is supported by the lower rail 29. The shuttle mechanism 7 is movable to the left and right along the lower rail 29 in synchronization with the needle bar mechanism 6 by the drive of the carrying mechanism 9. The transmission mechanism 72 transmits the power of the lower spline shaft 34 to the lower shaft 71. The shuttle 73 is connected to the lower shaft 71, and the shuttle 73 is driven by the main motor 32 to rotate in synchronization with the vertical movement of the needle bar 63.

The holding mechanism 8 includes a holding portion 80, a holding plate 83, a coupling portion 84, a coupling portion 85, and a coupling portion 90. The holding portion 80 can hold a sewing object, and includes an outer frame 81 having a rectangular frame shape in a plan view and a lower frame 82 having a rectangular plate shape in a plan view. The outer frame 81 surrounds the outer periphery of the lower frame 82. The lower frame 82 can mount a sewing object. The holding plate 83 is a rectangular plate and is disposed in front of the holding plate 22 of the seat unit 2 so as to be flush with the holding plate 22. The lower frame 82 is positioned above the holding plate 22 and the holding plate 83, and the holding plate 22 and the holding plate 83 support the holding portion 80 so that the holding portion 80 can move forward and backward. The coupling portion 84 is coupled to the left rear end portion of the holding portion 80, and the left lower end portion of the coupling portion 84 is disposed at the opening portion 24 of the seat portion 2 and fixed to the belt. The connecting portion 85 is connected to the right rear end portion of the holding portion 80, and the right lower end portion of the connecting portion 85 is disposed on a rail at the opening 25 of the seat portion 2 and fixed to the belt. The coupling portion 84 has an air cylinder 91, the coupling portion 85 has an air cylinder 92, an output shaft of the air cylinder 91 is engageable with the left rear portion of the holding portion 80, and an output shaft of the air cylinder 92 is engageable with the right rear portion of the holding portion 80. The output shafts of the air cylinders 91 and 92 are engaged with the holding portion 80, whereby the coupling portion 84 and the coupling portion 85 are coupled to the holding portion 80, and the output shafts of the air cylinders 91 and 92 are disengaged from the holding portion 80, whereby the holding portion 80 can be detached from the coupling portion 84 and the coupling portion 85. The connection portion 90 has a rectangular shape extending in the left-right direction, and is connected to the connection portion 84 and the connection portion 85, respectively. The operator can arrange the auxiliary frames 86 and 88 smaller than the outer frame 81 inside the outer frame 81 of the holding mechanism 8 according to the type of the object to be sewn and the shape of the stitches to be formed on the object to be sewn. The auxiliary frames 86, 88 are disposed on the upper surface of the sewing object, and can prevent the sewing object from floating. The auxiliary frames 86 and 88 have a rectangular plate shape in plan view, and are attached to the outer frame 81 at their rear end portions with hinges. Therefore, the front end portions of the auxiliary frames 86 and 88 can be opened and closed in the vertical direction. The auxiliary frame 89 is smaller than the auxiliary frames 86 and 88, has a circular frame shape in plan view, and is provided on the auxiliary frames 86 and 88. The auxiliary frame 86 has a grip 87 at its distal end. When the auxiliary frame 86 is disposed inside the outer frame 81, the upper end of the grip 87 is located above the upper end of the outer frame 81 in the vertical direction.

The transport mechanism 10 is capable of moving the holding mechanism 8 back and forth with respect to the needle bar mechanism 6 and the shuttle mechanism 7. The conveyance mechanism 10 is capable of moving the holding mechanism 8 back and forth between the forward position and the rearward position with respect to the needle bar mechanism 6 and the shuttle mechanism 7. As shown in fig. 4 (a), when the holding mechanism 8 is at the rear position with respect to the needle bar mechanism 6 and the shuttle mechanism 7, the needle bar 63 is at the front of the holding portion 80. As shown in fig. 4 (B), when the holding mechanism 8 is in the front position with respect to the needle bar mechanism 6 and the shuttle mechanism 7, the needle bar 63 is behind the holding portion 80. The conveyance mechanism 10 is disposed below the holding plate 22. The conveying mechanism 10 has a Y motor 101, a transmission mechanism, and a pair of belts. The Y motor 101 is a pulse motor. The transmission mechanism of the conveyance mechanism 10 transmits the power of the Y motor 101 to a pair of belts fixed to the connection portion 84 and the connection portion 85 of the holding mechanism 8. The holding mechanism 8 moves back and forth in accordance with the driving of the Y motor 101. The conveying mechanism 10 and the conveying mechanism 9 are collectively referred to as a moving mechanism 14. The moving mechanism 14 can move the holding mechanism 8 in the horizontal direction with respect to the needle bar mechanism 6 and the shuttle mechanism 7.

The operation portion 11 is supported by the left end portion of the holding plate 83. The operation unit 11 includes a switch group 12 and a display unit 13. The switch group 12 inputs various instructions in accordance with the operation of the operator. The display unit 13 is a liquid crystal display and can display various images.

Referring to fig. 5, an electrical structure of the sewing apparatus 1 will be described. The control unit 15 of the sewing apparatus 1 includes a CPU16, a ROM17, a RAM18, a storage device 19, an input interface 35, an output interface 36, drive circuits 45 to 50, a drive circuit 58, and the like. The CPU16 comprehensively controls the operation of the sewing machine 1. The ROM17 stores programs and the like for performing various processes in advance. The RAM18 temporarily stores various information generated during execution of various processes. The storage device 19 is nonvolatile, and stores various setting values. The storage device 19 includes an item storage area 30 that stores items described later.

The drive circuits 45 to 50 and the drive circuit 58 are connected to the output interface 36. The drive circuit 45 is connected to the main motor 32 of the synchronization mechanism 31, and drives the main motor 32 by a control command of the CPU 16. The drive circuit 46 is connected to an X motor 95 of the conveyance mechanism 9, and drives the X motor 95 by a control command of the CPU 16. The drive circuit 47 is connected to the Y motor 101 of the conveyance mechanism 10, and drives the Y motor 101 by a control command of the CPU 16. The drive circuit 48 is connected to the air cylinder 67 of the up-down mechanism 66, and drives the air cylinder 67 by a control command of the CPU 16. The drive circuit 49 is connected to the display unit 13, and displays various information on the display unit 13 by a control command of the CPU 16. The drive circuit 50 is connected to the presser foot motor 68, and drives the presser foot motor 68 by a control command from the CPU 16. The drive circuit 58 is connected to the air cylinder 91 and the air cylinder 92, and drives the air cylinder 91 and the air cylinder 92 by a control command of the CPU 16.

The power switch 20, the encoders 55 to 57, the switch group 12, and the like are connected to the input interface 35. The power switch 20 is used for connecting the power of the sewing device 1. The encoder 55 detects the rotational position and rotational speed of the output shaft of the main motor 32, and inputs the detection result to the input interface 35. The detection result of the encoder 55 indicates the vertical position of the needle bar 63 and the needle 65. The encoder 56 detects the rotational direction, rotational position, and rotational speed of the output shaft of the X motor 95, and inputs the detection result to the input interface 35. The detection result of the encoder 56 indicates the left-right direction positions of the needle bar mechanism 6 and the shuttle mechanism 7. The encoder 57 detects the rotation direction, the rotation position, and the rotation speed of the output shaft of the Y motor 101, and inputs the detection result to the input interface 35. The detection result of the encoder 57 indicates the front-rear direction position of the holding portion 80. The switch group 12 detects various instructions and inputs the detection result to the input interface 35.

The sewing data E of the specific example will be described with reference to fig. 6 and 7. The sewing data E is data for sewing a circular stitch on the inner sides of the fifteen auxiliary frames 89 shown in fig. 6 by the sewing device 1. Fifteen sub-frames 89 are arranged at substantially equal intervals in a lattice shape of three rows and five columns inside the outer frame 81, and are positioned inside the sub-frame 86 or 88. The rows indicate the number of the auxiliary frames 89 arranged in the front-rear direction, and the columns indicate the number of the auxiliary frames 89 arranged in the left-right direction. The two sub-frames 86 are arranged left and right inside the outer frame 81 in such a manner that one sub-frame 88 is placed therebetween. The fifteen trace configuration is indicated by the column and row numbers. The column number of the leftmost column of the stitches arranged in a lattice is set to one, and the column number is represented by one to five numbers. The line number of the last line is set to one, and the line numbers are represented by numbers one to three. The stitches formed on the inner sides of the fifteen sub-frames 89 are referred to as stitches h1 to h 15. The stitches h 1-h 6 are formed on the inner side of the sub frame 86 positioned on the left side of the sub frame 88. The stitches h 7-h 9 are formed on the inner side of the auxiliary frame 88. Stitches h 10-h 15 are formed on the inner side of the sub frame 86 on the right side of the sub frame 88.

As shown in fig. 7, the sewing data E alternately includes air feed data and stitch data. The air-conveying data J1-J16 and the trace data H1-H15 are arranged according to the execution sequence. The idle feed is an operation of the sewing device 1 that moves the needle bar mechanism 6 and the shuttle mechanism 7 relative to the sewing object without moving the needle bar 63 up and down, and the idle feed data J1 to J16 include data specifying the relative positions of the needle bar mechanism 6 and the shuttle mechanism 7 after moving relative to the sewing object, respectively. The sewing device 1 does not form a stitch on the sewing object when driven according to the air feeding data. The air data J1 to J15 indicate the following: the needle bar mechanism 6 and the shuttle mechanism 7 are moved relative to the sewing object so that the sewing start position is positioned below the needle bar 63. The air data J16 indicates the following: after the sewing is finished, the needle bar mechanism 6 and the shuttle mechanism 7 are moved to predetermined positions with respect to the sewing object. In fig. 6, the idle travel paths J2 to J15 indicated by the idle travel data J2 to J15 are indicated by dashed lines thicker than the dashed lines indicating the traces h1 to h 15. The idle conveyance paths J2 to J15 respectively represent movement paths of the needle bar 63 on the plane when the idle conveyance data J2 to J15 are executed.

The stitch data H1 to H15 are data for moving the needle bar mechanism 6 and the shuttle mechanism 7 relative to the sewing object while moving the needle bar 63 up and down, and include data specifying the position of the sewing point. The sewing point is a point on the sewing object which is penetrated by the needle 65. When the sewing device 1 is driven according to the stitch data, the sewing device 1 drives the X motor 95 to move the needle bar mechanism 6 and the shuttle mechanism 7 left and right according to the sewing data, and drives the Y motor 101 to move the holding mechanism 8 back and forth, thereby moving the needle bar mechanism 6 and the shuttle mechanism 7 to the sewing point with respect to the sewing object. The sewing device 1 drives the main motor 32 in synchronization with the driving of the X motor 95 and the Y motor 101 to drive the needle bar mechanism 6 and the shuttle mechanism 7. When the sewing device 1 is driven according to the stitch data H1-H15, the sewing device 1 forms stitches H1-H15 on the sewing object. The upper end of the auxiliary frame 89 is located below the needle bar 63 and the presser foot 64 when the upper dead center is located, and the upper ends of the outer frame 81, the auxiliary frame 86, and the auxiliary frame 88 are located above the needle bar 63 and the presser foot 64 when the upper dead center is located. Therefore, when the needle bar mechanism 6 is at the lower position, the sewing device 1 can be idle-fed across the auxiliary frame 89, but cannot be idle-fed across any of the outer frame 81, the auxiliary frame 86, and the auxiliary frame 88. The sewing device 1 can set the vertical position of the needle bar mechanism 6 during idle feed by the processing described later.

The setting process is explained with reference to fig. 8 and 9. The setting process is a process of receiving a setting regarding the vertical position of the needle bar mechanism 6 for each item stored in the sewing device 1. The sewing device 1 stores four items 001-004 as an example. The setting process is performed when the operator operates the switch group 12 from the menu displayed on the display unit 13 to designate the storage switch setting. At this time, the CPU16 reads out a program for setting processing from the ROM17 to the RAM 18.

The CPU16 controls the drive circuit 49 to display a screen D1 on the display unit 13 (S1). The screen D1 includes a list L1 and keys K1 to K3. The list in the list L1 shows four items stored in the item storage area 30 of the storage device 19 of the sewing apparatus 1. The item 001 is an item for setting: whether or not the function of changing the vertical position of the needle bar mechanism 6 from the lower position to the upper position at the time of idle feeding is enabled. The item 002 is an item for setting the following: whether or not the function of changing the vertical position of the needle bar mechanism 6 from the lower position to the upper position at the time of the specific idle conveyance is enabled. The specific air feed includes air feed during sewing according to sewing data, air feed at the end of sewing, and air feed at the time of interruption of sewing. Item 003 is an item set to: whether or not the vertical function of the needle bar mechanism is effective in changing the vertical position of the needle bar mechanism 6 from the lower position to the upper position when the idle conveyance path for the specific idle conveyance passes through the specific region. The specific area is the area where the auxiliary frames 86 and 88 are located, and is set for each sewing data. The specific area may be a preset area or an area designated by the operator. The item 004 is an item for setting the following: whether or not the function of changing the vertical position of the idle-fed needle bar mechanism 6 from the upper position to the lower position is effective. Items 001 to 004 are all represented by ON, OFF and OFF, and the initial values are all OFF. Items 002 to 004 can be set when item 001 is ON. Item 003 can be set when item 002 is ON. The key K1 is used to input an instruction to display all items stored in the sewing apparatus 1 in the list L1. The key K2 is used to input an instruction to display an item changed from an initial value among all items stored in the sewing apparatus 1 in the list L1. The key K3 is used to input an instruction to end the setting process.

The CPU16 determines whether selection of the key K3 is detected (S2). When the CPU16 determines that the selection of the key K3 is not detected (S2: no), the CPU16 determines whether the selection of a certain item in the list L1 is detected (S3). An instruction to select an item to be set or changed is input by an operator. When the CPU16 determines that selection of an item has not been detected (S3: no), the CPU16 returns the process to S2. When the CPU16 determines that selection of the item 001 has been detected (S3: yes), the CPU16 controls the drive circuit 49 to display the screen D2 corresponding to the item 001 detected in S3 on the display unit 13 (S4). As shown in fig. 9, the screen D2 includes a display field L2 and keys K4 to K7. The display field L2 displays the content of the item 001 detected by S3. The key K4 is used to input an instruction to turn ON the setting of the item 001 detected in S3. The key K5 is used to input an instruction to turn OFF the item 001 detected in S3. The key K6 is used to input an instruction to set the item 001 detected in S3 to the initial value. The key K7 is used to input an instruction to return to the screen D1. The CPU16 determines whether or not selection of any one of the keys K4 to K6 is detected (S5). When the CPU16 determines that selection of any one of the keys K4 to K6 is detected (S5: yes), the CPU16 changes the setting of the item 001 detected in S3 in accordance with the type of the key for which selection is detected (S6), and returns the process to S5. When the CPU16 determines that selection of the keys K4 to K6 is not detected (S5: no), the CPU16 determines whether selection of the key K7 is detected (S7). When the CPU16 determines that the selection of the key K7 has not been detected (S7: no), the CPU16 returns the process to S5. When the CPU16 determines that the selection of the key K7 has been detected (S7: yes), the CPU16 returns the process to S1 and displays the screen D1 on the display unit 13 (S1). When the CPU16 determines that the selection of the key K3 has been detected (S2: yes), the CPU16 stores the settings for the items 001 to 004 in the storage device 19, and ends the setting processing. The operator can change the settings of the items 001 to 004 by performing the setting process. As shown in fig. 5, the item storage area 30 of the storage device 19 is stored ON (valid) in the items 001 to 004 by the setting processing.

The creation process using the sewing data E will be described with reference to fig. 10 to 14. The creation processing is processing for receiving a setting regarding the vertical position of the needle bar mechanism 6 for each empty feed data included in the sewing data. The sewing data E may be data stored in advance in the storage device 19 or the like, data acquired from an external device, or data created by the sewing apparatus 1. The creation process is performed when the operator designates sewing data to be processed by operating the switch group 12 and instructs the creation process to be executed. At this time, the CPU16 reads out a program for creation processing from the ROM17 to the RAM 18.

As shown in fig. 10, the CPU16 acquires the sewing data E designated by the operator, controls the drive circuit 49, and displays a screen D3 corresponding to the sewing data E on the display unit 13 (S19). As shown in fig. 11, the screen D3 includes columns U1 to U4. The column U1 represents a stitch by a solid line Q2 and an idle conveyance path by a broken line Q3 based on the acquired sewing data E. The idle conveyance path is a linear line segment connecting a position before movement and a position after movement. A solid-line rectangle Q1 indicates a sewing region set inside the outer frame 81. Column U2 displays icons for selectable items. Column U2 displays a plurality of icons including icons C1-C3. The icon C1 corresponds to an item "input data" for creating sewing data in accordance with an instruction from the operator. The icon C2 corresponds to the item "edit contour" for editing the contour line of the stitch shown in the sewing data. The icon C3 corresponds to the item "edit sewing point" of the position of the sewing point indicated by the edit sewing data. The column U2 displays the background color of the selected icon C1 in a color different from the background color of the other icons. Column U3 displays icons for selectable sub-items corresponding to the selected item in column U2. Column U3 displays a plurality of icons including icon C4. The icon C4 corresponds to a sub-item "add" that gives various settings to the blank data included in the sewing data. The column U3 displays the background color of the selected icon C4 in a color different from the background color of the other icons. The column U4 displays setting items corresponding to the sub item selected in the column U3. Column U4 includes item C5. Item C5 corresponds to the needle bar mechanism raising setting for changing the needle bar mechanism 6 from the lower position to the upper position during idle feeding.

The CPU16 determines whether selection of input data is detected (S20). When creating the sewing data E, the operator operates the switch group 12 to select the icon C1, and inputs a selection of the input data. When the CPU16 determines that selection of input data has not been detected (S20: no), the CPU16 performs S27 described later. When the CPU16 determines that selection of input data is detected (S20: yes), the CPU16 displays icons of sub items corresponding to the input data in the column U3, and determines whether selection of addition is detected (S21). When creating the air traffic data, the operator operates the switch group 12 to select the icon C4, and inputs a selection for addition. When the CPU16 determines that selection of addition has been detected (yes in S21), the CPU16 displays the setting item corresponding to addition in the column U4 and determines whether the needle bar mechanism raising setting has been acquired (S22). When the operator determines, inputs, and changes the setting of the raising setting of the needle bar mechanism during the air feed, the operator operates the switch group 12 to select the item C5 and inputs the selection of the raising setting of the needle bar mechanism. When the CPU16 determines that the needle bar mechanism ascent setting has not been acquired (S22: no), the CPU16 returns the process to S21. When the CPU16 determines that the needle bar mechanism elevation setting has been acquired (yes in S22), the CPU16 acquires the needle bar mechanism elevation setting based on the detection result and determines whether or not input of idle conveyance data has been detected (S23). The operator operates the switch group 12 to input a start point and an end point corresponding to the idle conveyance path J7 (see fig. 6), and inputs an instruction to create idle conveyance data J7. When the CPU16 determines that no input of idle data has been detected (S23: no), the CPU16 returns the process to S21. When the CPU16 determines that input of air feed data has been detected (S23: yes), the CPU16 creates air feed data J7, as shown in fig. 11, in which the air feed data J7 corresponds to the air feed path J7 input at S23, and attribute information including the needle bar mechanism ascent setting acquired at S22 is added (S24). The CPU16 may create the air data J7 created as data added to the sewing data E acquired at S19, or may create the air data J7 as data different from the sewing data E. The CPU16 performs S27 described later. When the CPU16 determines that no selection for addition is detected (S21: no), the CPU16 determines whether selection for other processing is detected (S25). When the CPU16 determines that selection of another process has not been detected (S25: no), the CPU16 returns the process to S21. When the CPU16 determines that selection of another process is detected (S25: yes), the CPU16 performs the other process of detecting selection (S26), and determines whether selection of an edit sewing point is detected (S27).

When the operator edits the sewing point indicated by the stitch data in the sewing data E, the operator operates the switch group 12 to select the icon C3, and inputs a selection of the edited sewing point. When the CPU16 determines that the selection of the edit sewing point has not been detected (S27: no), the CPU16 performs S34 described later. When the CPU16 determines that selection of an editing and sewing point is detected (S27: yes), the CPU16 displays a screen D4 including icons of sub items corresponding to the editing and sewing point on the display unit 13 and determines whether selection of an editing code is detected (S28). As shown in fig. 12, the screen D4 includes columns U1 and U2, and columns U5 and U6 similar to the screen D3. Column U5 displays icons for selectable sub-items corresponding to the edit stitching selected in column U2. Column U5 displays a plurality of icons including icons C6, C7. The icon C6 corresponds to a sub-item "edit code" for editing a code indicating an execution condition of the sewing data E. The icon C7 corresponds to a sub-item "edit end code" of the edit end code, and the end code indicates an execution condition of data performed after the last sewing point is sewn according to the sewing data. The column U5 displays the background color of the selected icon C6 in a color different from the background color of the other icons. The column U6 displays setting items corresponding to the sub item selected in the column U5. The column U6 includes item C5 similar to screen D3.

When editing the air feed data J7 of the sewing data E, the operator operates the switch group 12 to select the air feed data J7, and then selects the icon C6 to input a selection of an editing code related to the air feed data J7. When the CPU16 determines that selection of the editing code has been detected (S28: yes), the CPU16 displays the setting item corresponding to the editing code in the column U6, and determines whether or not selection of the setting for raising the needle bar mechanism has been detected in the same manner as in S22 (S30). When the CPU16 determines that selection of the needle bar mechanism raising setting has not been detected (S30: no), the CPU16 returns the process to S28. When the CPU16 determines that selection of the needle bar mechanism elevation setting has been detected (yes in S30), the CPU16 changes the needle bar mechanism elevation setting corresponding to the selected idle feed path based on the detection result (S31), and performs S34 described later. When the CPU16 determines that the selection of the editing code is not detected (S28: no), the CPU16 determines whether the selection of the editing end code is detected (S29).

When the operator edits the air feed data J16 performed after sewing the last sewing point of the sewing data E, the operator operates the switch group 12 to select the icon C7 and inputs a selection of an edit end code. When the CPU16 determines that selection of the edit end code has been detected (S29: yes), the CPU16 performs the process of S30. As shown in fig. 13, the CPU16 controls the drive circuit 49 in S30 after S29, and displays a screen D5 on the display unit 13. The screen D5 includes columns U1, U2, U5, and U7 similar to the screen D4. The column U7 displays setting items corresponding to the sub item "edit end code" selected in the column U5. The column U7 includes item C5 similar to screen D3. When the operator determines or changes the setting of the needle bar mechanism elevation setting of the idle feed after the last sewing point of the sewing data E, the operator operates the switch group 12 to select the item C5 and inputs the selection of the needle bar mechanism elevation setting. When the CPU16 determines that selection of the needle bar mechanism raising setting has been detected (S30: yes), the CPU16 adds attribute information including the needle bar mechanism raising to the air feed data J16 executed after the sewing of the stitch h15 at the last row in the sewing order based on the detection result (S31). When the CPU16 determines that selection of the edit end code has not been detected (S29: no), the CPU16 determines whether selection of other processing has been detected (S32). When the CPU16 determines that selection of another process has not been detected (S32: no), the CPU16 returns the process to S28. When the CPU16 determines that selection of another process is detected (S32: yes), the CPU16 performs another process of detecting selection (S33), and determines whether selection of an editing contour is detected (S34).

When the operator determines and edits the setting of the contour of the stitch of the sewing data E, the operator operates the switch group 12 to select the icon C2 and inputs the selection of the edited contour. When the CPU16 determines that the selection of the edit contour is not detected (S34: no), the CPU16 performs S40 described later. When the CPU16 determines that selection of the editing profile is detected (S34: yes), the CPU16 displays a screen D6 including icons of sub items corresponding to the editing profile on the display section 13, and determines whether selection of a connection editing profile is detected (S35). As shown in fig. 14, the screen D6 includes columns U1 and U2, and columns U8 and U9 similar to the screen D3. Column U8 displays icons for sub-items corresponding to the selected editing profile in column U2. Column U8 includes an icon C8 for the sub-item "connect edit profile" that connects the profiles of the stitches of the sewing data. The column U9 displays setting items corresponding to the sub item selected in the column U8. The column U9 includes item C5 similar to screen D3.

When the operator determines and edits the connection of the outlines of the two stitches included in the sewing data E, the operator operates the switch group 12 to specify the outline to be connected, selects the icon C8, and inputs the selection of the connection edit outline. When the CPU16 determines that selection of the connection edit contour is detected (S35: yes), the CPU16 determines whether or not selection of the needle bar mechanism elevation setting is detected in the same manner as in S22 (S36). When the CPU16 determines that selection of the needle bar mechanism raising setting has not been detected (S36: no), the CPU16 returns the process to S35. When the CPU16 determines that selection of the needle bar mechanism elevation setting has been detected (yes in S36), the CPU16 changes the needle bar mechanism elevation setting of the idle feed data for the idle feed between the contours designated by the operator based on the detection result (S37), and performs S40 described later. When the CPU16 determines that the selection of the connection editing contour is not detected (S35: no), the CPU16 determines whether the selection of other processing is detected (S38). When the CPU16 determines that selection of another process has not been detected (S38: no), the CPU16 returns the process to S35. When the CPU16 determines that selection of another process is detected (S38: yes), the CPU16 performs another process of detecting selection (S39), and determines whether selection of an end is detected (S40). When the CPU16 determines that selection of the end has not been detected (S40: no), the CPU16 returns the process to S20. When the CPU16 determines that selection of an end is detected (S40: yes), the CPU16 ends the creation process. The operator can set an attribute indicating whether or not to move the needle bar mechanism 6 from the lower position to the upper position in accordance with the idle conveyance data corresponding to the idle conveyance paths j1 to j16 included in the sewing data E by performing the creation processing.

Referring to fig. 15, the origin detection process is explained. The origin detection process is a process of detecting the origin of the moving mechanism 14 by moving the needle bar mechanism 6 and the shuttle mechanism 7 to a predetermined origin position with respect to the holding mechanism 8. The sewing device 1 performs the origin detection process when the power switch 20 of the sewing device 1 is turned on, when the maintenance process described later is performed, and the like. At this time, the CPU16 reads out a program for origin detection processing from the ROM17 to the RAM 18.

The CPU16 performs determination processing (S52). The determination process is a process of determining whether or not the vertical position of the needle bar mechanism 6 is changed from the lower position to the upper position. As shown in fig. 16, the CPU16 refers to the item storage area 30 of the storage device 19 and determines whether the needle bar mechanism up-down function is valid (S81). In fig. 5, the vertical function of the needle bar mechanism is enabled (yes in S81), and the CPU16 determines whether or not the specific idle feed is performed (S82). When the origin detection process is executed, the process is not executed for the specific idle transmission (S82: NO). Therefore, the CPU16 sets the needle bar mechanism to be raised in the determination result (S89), and ends the determination processing to return the processing to the origin detection processing in fig. 15. The CPU16 determines whether the determination result in S52 indicates that the needle bar mechanism is lifted (S53). When the CPU16 determines that the needle bar mechanism is raised (yes in S53), the CPU16 controls the drive circuit 48 to raise the needle bar mechanism 6 from the lower position to the upper position (S54). When the CPU16 determines that the needle-less lever mechanism is ascending (S53: NO), or following S54, the CPU16 detects the origin (S55). The origin detection method may be any known method as appropriate. The CPU16 controls the drive circuit 46 and the drive circuit 47 to move the needle bar mechanism 6 and the shuttle mechanism 7 to a predetermined origin position with respect to the holding mechanism 8. The predetermined origin position can be set as appropriate according to the origin detection method. As shown in fig. 4 (a), the predetermined origin position is the front left position. In the left front position, the holding mechanism 8 is at the rearmost of the movable range, and the needle bar mechanism 6 is at the left end of the movable range. In the left front position, the holding portion 80 is located behind the needle bar 63 and the needle bar 63 is located in front of the holding portion 80 in plan view. At this time, the sewing device 1 uses the light emitting portion of the optical sensor disposed on the left portion of the bed portion 2 and the light receiving portion of the optical sensor disposed on the beam portion 5 to specify the position where the light emitted from the light emitting portion is blocked by the needle bar mechanism 6 and the shuttle mechanism 7, thereby detecting the origin. The CPU16 ends the origin detection processing.

The maintenance process is explained with reference to fig. 17. The maintenance process is a process of moving the needle bar mechanism 6 and the shuttle mechanism 7 to a predetermined maintenance position with respect to the holding mechanism 8. The predetermined maintenance position may be set as appropriate, and is a position designated by the operator out of the left rear position and the left front position. As shown in fig. 4 (B), the left rear position is a position: the holding mechanism 8 is at the forefront of the movable range, and the needle bar mechanism 6 is at the left end of the movable range. In the left rear position, the holding portion 80 is located forward of the needle bar 63 and the needle bar 63 is located rearward of the holding portion 80 in plan view. The sewing device 1 performs maintenance processing when the operator designates the maintenance position by operating the switch group 12 and instructs to start the maintenance processing. At this time, the CPU16 reads out a program for maintenance processing from the ROM17 to the RAM 18.

The CPU16 performs the origin detection process in fig. 15 (S10). In the origin detection processing, the CPU16 raises the vertical position of the needle bar mechanism 6 to the upper position. The CPU16 controls the drive circuits 46, 47 to move the needle bar mechanism 6 and the shuttle mechanism 7 relative to the holding mechanism 8 to the position designated by the operator out of the front left position and the rear left position (S11). The CPU16 determines whether the maintenance position designated by the operator is the front left position (S12). When the CPU16 determines that the maintenance position is the forward left position (S12: yes), the CPU16 refers to the item storage area 30 of the storage device 19 and determines whether the setting for lowering the needle bar mechanism is valid (S13). When the CPU16 determines that the setting for lowering the needle bar mechanism is valid (S13: yes), the CPU16 notifies that lowering of the needle bar mechanism 6 is started (S14). The CPU16 controls the drive circuit 49 to display a determination switch and "start lowering the needle bar mechanism" on the display unit 13. "is received. The CPU16 determines whether or not selection of the determination switch is detected (S15), and continues the process of S15 until it is determined that selection of the determination switch is detected (S15: no). After confirming the message displayed on the display unit 13, the operator operates the switch group 12 to input a selection of the determination switch. When the CPU16 determines that selection of the determination switch is detected (S15: yes), the CPU16 controls the drive circuit 48 to lower the needle bar mechanism 6 from the upper position to the lower position (S16). When the CPU16 determines that the maintenance position is the left rear position (S12: no), or when determining that the setting of the needle bar mechanism lowering is invalid (S13: no), the CPU16 maintains the vertical position of the needle bar mechanism 6 at the upper position (S18). After S16 or S18, the CPU16 turns off the power supply of the sewing apparatus 1 (S17), and ends the maintenance process.

With reference to fig. 18, the threading process will be described. The threading process is a process performed when the upper thread is threaded through the eye of the needle 65. The sewing device 1 performs the threading process when the operator operates the switch group 12 to instruct the start of the threading process. At this time, the CPU16 reads out a program for threading processing from the ROM17 to the RAM 18.

The CPU16 determines whether the needle bar mechanism 6 is in the upper position (S61). When the CPU16 determines that the needle bar mechanism 6 is at the upper position (S61: yes), the CPU16 controls the drive circuit 48 through the same processing as in S13 to S16 to lower the needle bar mechanism 6 from the upper position to the lower position (S62). When the CPU16 determines that the needle bar mechanism 6 is not at the upper position (S61: no), or following S62, the CPU16 controls the drive circuit 50 to lower the presser foot 64 to a predetermined position (S63). The CPU16 determines whether or not the needle bar mechanism 6 is moved to the designated position (S64). The designated position may be any position at which the operator can easily perform the threading operation, and is, for example, a position at the left end of the movable range of the needle bar mechanism 6. The designated position may be set in advance or may be set by the operator. The operator operates the switch group 12 to input an instruction as to whether or not to move the needle bar mechanism 6 to the left end of the movable range. When the CPU16 determines that the instruction to move the needle bar mechanism 6 to the specified position has not been detected (S64: no), the CPU16 determines whether or not the end of the job has been detected in accordance with the operation of the switch group 12 by the operator (S75). The CPU16 continues the process of S75 until determining that the end of the job is detected (S75: no). When the CPU16 determines that the end of the job is detected (S75: yes), the CPU16 ends the threading job.

When the CPU16 determines that an instruction to move the needle bar mechanism 6 has been detected (S64: yes), the CPU16 performs determination processing (S65). As shown in fig. 16, the CPU16 determines whether the needle bar mechanism up-down function is valid (S81). When the CPU16 determines that the needle bar mechanism up-down function is not effective (S81: no), the CPU16 sets the needle bar mechanism not to ascend in the determination result (S90). When the CPU16 determines that the needle bar mechanism vertical function is valid (S81: yes), the CPU16 determines whether or not the determination process is for the specific idle feed (S82). When the sewing is interrupted and the threading is performed due to the fact that the surface thread runs out in the sewing process, the sewing is in a specific idle feeding state (S82: Yes). At this time, the CPU16 refers to the item storage area 30 of the storage device 19 and determines whether the vertical function of the needle bar mechanism at the time of the specific idle feed is valid (S83). When the CPU16 determines that the vertical function of the needle bar mechanism is not effective at the time of the specific idle feed (S83: no), the CPU16 sets the non-needle bar mechanism to be raised in the determination result (S90). In fig. 5, since the vertical function of the needle bar mechanism at the time of the specific idle feed is enabled (S83: yes), the CPU16 refers to the item storage area 30 of the storage device 19 and determines whether or not the needle bar mechanism corresponds to the specific area (S84). When the CPU16 determines that the specific region is not to be assigned (S84: no), the CPU16 determines whether the setting of the attribute of air feed is the presence of the needle bar mechanism being raised (S85). When the CPU16 determines that the attribute of the empty feed is set to the needle bar mechanism lift (S85: yes), the CPU16 sets the needle bar mechanism lift as a result of the determination (S89). The determination processing in S65 is not idle transmission based on the idle transmission data, and there is no setting of the attribute (S85: no), so the CPU16 sets the needle bar free mechanism to ascend in the determination result (S90).

In fig. 5, since the specific region is specified in accordance with item 003 (yes in S84), the CPU16 determines whether or not the specific region is set (S86). When the CPU16 determines that there is no setting of the specific region (S86: no), the CPU16 sets the needle bar free mechanism to ascend in the determination result (S90). In fig. 5, the CPU16 determines that there is a specific area set (S86: yes), and the CPU16 calculates a route connecting from the current position to the designated position by a linear segment (S87). The CPU16 determines whether the route calculated through S87 passes through the specific region of S86 (S88). As shown in fig. 6, when the current position is a position corresponding to the stitches of the third to fifth columns, the path calculated by S87 passes through the specific area of S86 (S88: yes). At this time, the CPU16 determines that the needle bar mechanism is lifted (S89). When the current position is the position corresponding to the stitches of the first and second columns, the path calculated by S87 does not pass through the specific area of S86 (S88: no). At this time, the CPU16 sets the needle bar free mechanism to ascend in the determination result (S90). After S89 or S90, the CPU16 ends the determination process, and returns the process to the threading process.

The CPU16 determines whether the determination result in S65 indicates that the needle bar mechanism is lifted (S66). When the CPU16 determines that the needle bar mechanism is raised as a result of the determination (yes in S66), the CPU16 controls the drive circuit 48 to raise the needle bar mechanism 6 from the lower position to the upper position (S67). When the CPU16 determines that the determination result is that the needle-less lever mechanism is raised (S66: no), or following S67, the CPU16 stores the current positions of the needle bar mechanism 6 and the shuttle mechanism 7 with respect to the holding mechanism 8 as the home positions (S68).

The CPU16 controls the drive circuit 46 to move the needle bar mechanism 6 and the shuttle mechanism 7 to the specified position with respect to the holding mechanism 8 (S69). The CPU16 determines whether or not the end of the job is detected, based on the operation of the switch group 12 by the operator (S70). The CPU16 continues the process of S70 until determining that the end of the job is detected (S70: no). When the CPU16 determines that the end of the job is detected (S70: yes), the CPU16 determines whether or not an instruction to move to the home position is detected in accordance with the operation of the switch group 12 by the operator (S71). When the CPU16 determines that the instruction to move to the home position is detected (S71: yes), the CPU16 controls the drive circuit 46 to move the needle bar mechanism 6 and the shuttle mechanism 7 relative to the holding mechanism 8 to the home position stored by S68 (S72). The CPU16 refers to the item storage area 30 of the storage device 19 and determines whether the needle bar mechanism up-down function is valid (S73). When the CPU16 determines that the needle bar mechanism up-down function is valid (S73: yes), the CPU16 displays a message on the display unit 13 by the same processing as in S13 to S16, and then lowers the needle bar mechanism 6 from the upper position to the lower position when the selection of the determination switch is detected (S74). When the CPU16 determines that the instruction to move to the home position is not detected (S71: no), or when the CPU16 determines that the needle bar mechanism up-down function is not effective (S73: no), or following S74, the CPU16 ends the threading process.

Referring to fig. 19, the movement processing will be described. The movement process is a process of moving the needle bar mechanism 6 and the shuttle mechanism 7 to a target position designated by the operator with respect to the holding mechanism 8. The sewing device 1 performs the moving process when the operator operates the switch group 12 to input an instruction for starting the moving process. At this time, the CPU16 reads out a program for movement processing from the ROM17 to the RAM 18. In fig. 19, the same process as the origin detection process in fig. 15 is denoted by the same step number. The CPU16 performs S52 to S54 in the same manner as the origin detection processing. The CPU16 controls the drive circuit 46 and the drive circuit 47 to move the needle bar mechanism 6 and the shuttle mechanism 7 to the target positions designated by the operator with respect to the holding mechanism 8 (S56). The CPU16 ends the move process.

The sewing process in fig. 20 will be described with reference to specific examples in fig. 6 and 7. The sewing process is a process of forming a stitch on a sewing object according to sewing data. The sewing device 1 performs sewing processing when an operator operates the switch group 12 to input an instruction for starting the sewing processing. At this time, the CPU16 reads out a program for sewing processing from the ROM17 to the RAM 18. As shown in fig. 5, the item storage areas 30 of the storage device 19 are stored ON (valid) at items 001 to 004, respectively.

As shown in fig. 20, the CPU16 acquires sewing data E (S101). The CPU16 sets 1 to the variable N (S102). The variable N is used for processing to read out stitch data or air feed data included in the sewing data E acquired in S1 in accordance with the execution order. The CPU16 determines whether a stop signal is acquired (S103). The stop signal is a signal for stopping the driving of the sewing device 1, and the CPU16 detects the stop signal when detecting an error. The errors include upper thread breakage and lower thread breakage. The stop signal may be input by an operator operating the switch group 12. When the CPU16 determines that the stop signal is not acquired (S103: no), the CPU16 acquires the nth data included in the sewing data E acquired in S101 (S104). The CPU16 determines whether the nth data acquired in S104 is idle data (S105). The first data is null data J1 (S105: yes). At this time, the CPU16 performs the determination processing in fig. 16 (S106). In the determination processing in S106, the CPU16 refers to the item storage area 30 of the storage device 19, determines that the needle bar mechanism up-down function is valid (S81: yes), and determines that the empty feed is specified (S82: yes). The CPU16 determines that the vertical function of the needle bar mechanism at the time of the specific idle feed is valid (S83: yes), and determines that the needle bar mechanism corresponds to the specific region (S84: yes). The CPU16 determines that there is a setting of the specific area (S86: yes), and calculates the idle transmission path of the idle transmission data J1 (S87). The CPU16 determines that the empty feed path calculated in S87 passes through the specific region (S88: yes), sets the needle bar mechanism to be raised in the determination result (S89), and ends the determination process.

The CPU16 determines whether the determination result in S106 is that the needle bar mechanism is raised (S108). When the CPU16 determines that the needle bar mechanism is raised as a result of the determination (yes in S108), the CPU16 controls the drive circuit 48 to raise the needle bar mechanism 6 from the lower position to the upper position (S109). When the CPU16 determines that the determination result is that the needle-less lever mechanism is lifted (S108: NO), or following S109, the CPU16 controls the drive circuit 46 and the drive circuit 47 to perform idle feeding based on the first data acquired in S104 (S110). The CPU16 acquires the (N + 1) th data (S111), and determines whether the data is trace data (S112). When the CPU16 determines that the (N + 1) th data is the stitch data (S112: yes), the CPU16 controls the drive circuit 48 to lower the needle bar mechanism 6 from the upper position to the lower position (S113). When the CPU16 determines that the (N + 1) th data is not the stitch data (S112: no), or following S113, the CPU16 determines whether the (N + 1) th data is the last data in the execution order row in the sewing data E acquired in S101 (S114). The data of the second execution order row is not the last data in the sewing data E (S114: no). At this time, the CPU16 increments the variable N by 1(S119), and returns the process to S103. When the CPU16 determines that the stop signal is not acquired (S103: no), it acquires the second data in the execution order row in the sewing data E acquired in S101 (S104), and determines that the second data is the stitch data H1 instead of the idle feed data (S105: no). The CPU16 drives the driving circuits 45 to 47 based on the stitch data H1 acquired in S104, and stitches H1 on the sewing object (S107). The CPU16 performs the process of S114. In S106, the CPU16 sets the non-needle bar mechanism to be raised in the determination result for the empty feed paths j2 to j6, j8, j9, and j11 to j15 (S90), and performs the empty feed with the needle bar mechanism 6 in the lower position (S110). In S106, the CPU16 sets the needle bar mechanism to be raised in the empty feed paths j1, j7, j10, and j16 (S89), and raises the needle bar mechanism 6 from the lower position to the upper position (S109), and then performs the empty feed (S110).

When the CPU16 judges that the stop signal is acquired (YES in S103), the CPU16 controls the drive circuits 45 to 47 to stop sewing (S121). The CPU16 determines whether or not a re-sewing preparation is made (S122). This determination is made in accordance with the type of error that caused the output stop signal. When the stop signal is outputted due to the upper thread or the lower thread being used up, the CPU16 judges that there is a preparation for re-sewing (S122: yes). The CPU16 determines whether or not the threading process is performed according to the type of error (S123). When the CPU16 determines that the threading process is to be performed (S123: YES), the CPU16 performs the threading process in FIG. 18 (S124). When the CPU16 determines that the threading process is not to be performed (no in S123), or following S124, the CPU16 performs a re-sewing process (S125). The re-sewing process is a process for solving an error in accordance with the error. When the sewing device 1 outputs the stop signal due to the bottom thread running out, the processing of replacing the bottom thread is performed in S125. The CPU16 determines whether or not an instruction to continue sewing is detected (S126). The operator refers to the situation of solving the error in S125, operates the switch group 12, and inputs an instruction as to whether or not to continue sewing. When the CPU16 judges that the instruction to continue sewing is detected (S126: YES), the CPU16 returns the process to S103. When the CPU16 determines that there is no preparation for re-sewing (S122: no), or when the CPU16 determines that no instruction to continue sewing is detected (S126: no), the CPU16 shifts the process to S115.

When the CPU16 judges that the (N + 1) th data in the sewing data E acquired in S101 is the last data (S114: YES), the CPU16 performs the judgment processing (S115). As shown in fig. 16, in the determination processing in S115, the CPU16 refers to the item storage area 30 of the storage device 19, determines that the needle bar mechanism up-down function is valid (S18: yes), and determines that it is the specific idle feed (S82: yes). The CPU16 determines that the vertical function of the needle bar mechanism at the time of the specific idle feed is valid (S83: yes), and determines that the needle bar mechanism corresponds to the specific region (S84: yes). Specifically, the CPU16 judges that the specific area is set (S86: YES), and calculates the idle transmission route J16 of the idle transmission data J16 (S87). The CPU16 determines that the empty transport path j16 calculated in S87 passes through the specific region (S88: yes), sets the needle bar mechanism to be raised in the determination result (S89), and ends the determination process.

The CPU16 determines whether the determination result in S115 is that the needle bar mechanism is lifted (S116). When the CPU16 determines that the needle bar mechanism is raised as a result of the determination (yes in S116), the CPU16 controls the drive circuit 48 to raise the needle bar mechanism 6 from the lower position to the upper position (S117). When the CPU16 determines that the determination result is that the needle-less lever mechanism is raised (no in S116), or following S117, the CPU16 controls the drive circuit 46 and the drive circuit 47 to move the needle bar mechanism 6 and the shuttle mechanism 7 to the designated position of the (N + 1) th data with respect to the holding mechanism 8 (S118). The CPU16 ends the sewing process.

In the sewing apparatus 1 of the above embodiment, the CPU16 for performing S6, S24, S31, and S37 is an example of the setting unit of the present invention. The CPU16 in S54, S67, S109, and S117 is an example of the movement controller. The CPU16 at S19 is an example of the acquisition unit of the present invention. The CPU16 at S18 is an example of the upper maintenance unit of the present invention. The CPU16 at S16 is an example of the lower moving unit of the present invention. The CPU16 at S14 is an example of the notification unit of the present invention.

In the sewing device 1 of the above embodiment, the vertical mechanism 66 can move the needle bar mechanism 6 to the vertical position where the needle bar mechanism 6 is located when sewing the object to be sewn and to the vertical position above the vertical position. The CPU16 of the sewing device 1 sets the vertical position of the needle bar mechanism 6 at the time of idle feed, which is to drive the moving mechanism 14 to move the needle bar mechanism 6 and the shuttle mechanism 7 in the horizontal direction with respect to the sewing object without moving the needle bar 63 up and down, to be either the lower position or the upper position (S6, S24, S31, S37). The CPU16 controls the vertical mechanism 66 according to the setting, and moves the vertical position of the needle bar mechanism 6 at the time of idle feed to the lower position or the upper position (S54, S67, S109, S117). Therefore, the sewing device 1 can shorten the time required for the sewing operation as compared with the conventional device in which the vertical position of the needle bar mechanism 6 is uniformly set to the upper position during the idle feeding by appropriately setting the vertical position of the needle bar mechanism 6 during the idle feeding.

The CPU16 of the sewing device 1 acquires sewing data for forming stitches on a sewing object (S19), and sets a position of the needle bar mechanism 6 in the vertical direction of the idle feed data indicating the idle feed included in the acquired sewing data, to which one of the lower position and the upper position the vertical position is located (S24, S31, S37). The CPU16 controls the vertical mechanism 66 according to the setting, and moves the vertical position of the needle bar mechanism 6 to the lower position or the upper position at the time of idle feeding according to the sewing data (S109, S117). The sewing device 1 can set the vertical position of the needle bar mechanism 6 at the time of idle feed according to the sewing data to be either the lower position or the upper position. Therefore, the sewing device 1 can shorten the time required for the sewing operation when sewing according to the sewing data including the idle feed data, as compared with the conventional device in which the vertical position of the needle bar mechanism 6 is uniformly set to the upper position during the idle feed.

The CPU16 sets which position of the lower position and the upper position the vertical position of the needle bar mechanism 6 is located when the needle bar mechanism 6 and the shuttle mechanism 7 are moved to the position as the predetermined origin position with respect to the sewing object by the air feed (S6 in item 001). The sewing device 1 can set the position of the needle bar mechanism 6 in the vertical direction to be either the lower position or the upper position when the original point is transported, i.e., the needle bar 63 is moved to a position as a predetermined original point position with respect to the sewing object by the idle transport. Therefore, the sewing device 1 can shorten the time required for the sewing operation when transporting the needle bar mechanism 6 at the origin, as compared with the conventional device in which the vertical position of the needle bar mechanism is uniformly set to the upper position.

The sewing device 1 includes a beam portion 5, a holding mechanism 8, a conveying mechanism 9, and a conveying mechanism 10. The beam portion 5 supports the needle bar mechanism 6 at the rear side with respect to the needle bar mechanism 6 in such a manner that the needle bar mechanism 6 can move in the left-right direction parallel to the horizontal direction. The holding mechanism 8 includes a holding portion 80, and the holding portion 80 holds the sewing object at a position below the needle bar mechanism 6 located at the upper position. The conveying mechanism 9 conveys the shuttle mechanism 7 and the needle bar mechanism 6 in the left-right direction with respect to the sewing object. The conveying mechanism 10 conveys the holding mechanism 8 in the front-rear direction parallel to the horizontal direction and orthogonal to the left-right direction. The CPU16 sets the needle bar 63 at an upper position with respect to the movement path (idle conveyance path) of the sewing object when the needle bar passes behind or in front of the holding section 80 in the vertical direction of the needle bar mechanism 6 (S6 in item 003). The arrangement region of the outer frame 81 is set as the specific region, and when the operator sets the items 001 to 003 ON, the CPU16 sets the position of the idle conveyance path in the vertical direction of the needle bar mechanism 6 at the upper position when the idle conveyance path passes behind or in front of the holding portion 80 (S6). When performing the processing in fig. 15 or fig. 19, the CPU16 performs idle feeding (S55, S56) after raising the vertical position of the needle bar mechanism 6 from the lower position to the upper position (S54) in accordance with the setting acquisition determination result (S52). Therefore, the sewing device 1 can set the position of the needle bar mechanism 6 in the vertical direction at the upper position when the movement path of the needle bar 63 with respect to the sewing object passes through the outside of the rear side or the outside of the front side of the holding portion 80. The sewing device 1 can avoid the needle bar mechanism 6 from colliding with the holding part 80 during the moving process of the moving path when the moving path of the needle bar 63 relative to the sewing object crosses the holding part 80.

As shown in fig. 17, the CPU16 sets the vertical position of the needle bar mechanism 6 to the upper position after the needle bar 63 is moved to the left rear position rearward of the holding portion 80 with the vertical position of the needle bar mechanism 6 set to the upper position (S11; S12: no) (S18). Since the sewing device 1 maintains the vertical position of the needle bar mechanism 6 at the upper position after the idle feed, it is not necessary for the operator to change the vertical position of the needle bar mechanism 6 from the lower position to the upper position when the operator performs the work after setting the vertical position of the needle bar mechanism 6 to the upper position for the purpose of changing the sewing object. Therefore, the sewing device 1 can save time for changing the vertical position of the needle bar mechanism 6 from the lower position to the upper position after the idle feed.

The CPU16 sets the vertical position of the needle bar mechanism 6 to the lower position after the needle bar 63 is moved to the left front position on the front side of the holding part 80 with the vertical position of the needle bar mechanism 6 set to the upper position (S11; S12: YES) (S16). Since the sewing device 1 sets the vertical position of the needle bar mechanism 6 at the lower position after the idle feed, the operator does not need to change the vertical position of the needle bar mechanism 6 from the upper position to the lower position in order to perform work around the needle bar mechanism 6. Therefore, the sewing device 1 can save time for changing the vertical position of the needle bar mechanism 6 from the upper position to the lower position after the idle feed.

The CPU16 sets whether or not to move the needle bar mechanism 6 from the upper position to the lower position after the idle conveyance to the left front position (S6 in item 004). When the movement of the needle bar mechanism 6 is set in S6 (S13: yes), the CPU16 moves the vertical position of the needle bar mechanism 6 to the lower position after the idle feed to the left front position (S16). The sewing machine 1 is fed to a left front position when an operator performs maintenance work. The sewing device 1 can select which of the lower position and the upper position the vertical position of the needle bar mechanism 6 is set to after the idle conveyance, and therefore, the operator can set the vertical position of the needle bar mechanism 6 after the idle conveyance according to the work content.

The CPU16 notifies a warning after the idle feed to the left front position and before the vertical position of the needle bar mechanism 6 is moved to the lower position (S14). Therefore, the CPU16 of the sewing device 1 can notify the operator of the movement of the needle bar mechanism 6 from the upper position to the lower position. The sewing device 1 can prevent the operator from moving the needle bar mechanism 6 from the upper position to the lower position when not desired.

The sewing device of the present invention can be modified in various ways in addition to the above-described embodiments. The structure and movable range of the moving mechanism 14 may be appropriately changed. The sewing device 1 may move the needle bar mechanism 6 and the shuttle mechanism 7 in the front-rear direction and the left-right direction without changing the position of the holding portion 80 of the holding mechanism 8, or may move the holding portion 80 of the holding mechanism 8 in the front-rear direction and the left-right direction without changing the position of the needle bar mechanism 6 and the shuttle mechanism 7. The sewing device 1 may not include at least one of the beam portion 5, the holding mechanism 8, the conveying mechanism 9, and the conveying mechanism 10. The needle bar mechanism 6 may be provided so as to be movable in the left-right direction below the beam portion 5. The sewing device 1 may have a warning lamp or a sound output device as the notification unit, and the processing of S14 in fig. 17 may be appropriately changed according to the configuration of the notification unit. The input unit for inputting various instructions by the operator may be a touch panel, a microphone, or the like.

The program including the command for the sewing apparatus 1 to perform the setting process may be stored in the storage device 19 of the sewing apparatus 1 before the CPU16 executes the program, or may be received from another apparatus via cable or wireless communication and stored in a storage device such as a flash memory. Other devices include computers and servers connected via a network.

A part or all of the processing performed by the sewing apparatus 1 may be performed by an electronic device such as an ASIC different from the CPU 16. The processing performed by the sewing device 1 may be distributed by a plurality of electronic devices. The sewing device 1 may not set a part or all of the items 001 to 004 by the setting process shown in fig. 8. The creation process in fig. 10 may also be changed or omitted as appropriate. The screen displayed by the sewing apparatus 1 can be changed as appropriate according to the processing performed by the sewing apparatus 1. The sewing device 1 may not be able to set which position the vertical position of the needle bar mechanism 6 is located between the lower position and the upper position during idle feed in the origin detection process. The sewing device 1 may set the vertical position of the needle bar mechanism 6 at the upper position according to the setting of the operator, regardless of whether the idle feed path passes through the specific region. When the relative positions of the needle bar mechanism 6 and the shuttle mechanism 7 after the air feed with respect to the sewing object are the rear position or the front position, the sewing device 1 may move the vertical position of the needle bar mechanism 6 from the lower position to the upper position before the start of the movement. The sewing device 1 may not be able to set whether the vertical position of the needle bar mechanism 6 is maintained at the upper position or moved to the lower position after the idle feed. The maintenance position may be changed as appropriate. In fig. 17, the maintenance position may be designated by the operator or may be set in advance. When the maintenance position is adopted, the following steps are also available: the holding mechanism 8 is at the rearmost or foremost of the movable range, and the needle bar mechanism 6 is at any position of the movable range. The sewing device 1 may be configured so that the needle bar 63 cannot be moved to a position forward or backward with respect to the holding portion 80.

The sewing device 1 may automatically set the specific region according to the type of the holding portion 80, the type and arrangement of the auxiliary frames 86, 88, 89. In this case, the sewing device 1 may automatically detect the type of the holding portion 80, and a part or all of the types and arrangements of the auxiliary frames 86, 88, and 89, or may input the type of the holding portion 80, and a part or all of the types and arrangements of the auxiliary frames 86, 88, and 89 by an operator operating the switch group 12. The sewing device 1 may be configured not to provide the item 004, and may be configured to move the needle bar mechanism 6 from the upper position to the lower position after the idle feed in which the needle bar mechanism 6 and the shuttle mechanism 7 are moved with respect to the sewing object, or may be configured to maintain the needle bar mechanism 6 at the upper position after the idle feed. When receiving the setting of the specific region, the sewing device 1 may raise or lower the needle bar mechanism 6 while moving the needle bar mechanism 6 and the shuttle mechanism 7 relative to the sewing object outside the specific region. At least one of S14 and S15 may be omitted from the sewing device 1.

The sewing device 1 can set the vertical position of the needle bar mechanism 6 at the upper position even when the moving path of the needle bar 63 relative to the sewing object passes through the outside of the rear side or the outside of the front side of the holding portion 80 without crossing the holding portion 80.

When the blank data acquired in S104 is given attribute information indicating that the needle bar mechanism has risen, the CPU16 may determine in S84 that the specific region is not to be identified, regardless of the setting of the item 003 stored in the storage device 19 (S84: no). In this case, the CPU16 may set the needle bar mechanism to be raised (S89) when the attribute of the idle data is the needle bar mechanism to be raised (yes in S85), and set the needle bar mechanism not to be raised (S90) when the attribute of the idle data is the needle bar mechanism to be raised (no in S85).

Claims (8)

1. A sewing device, comprising:

a needle bar mechanism (6) having a needle bar (63) to which a needle (65) can be attached at the lower end, the needle bar mechanism being capable of moving the needle bar up and down;

a shuttle mechanism (7) which is arranged below the needle bar mechanism and has a shuttle (73);

a moving mechanism (14) for moving the shuttle mechanism and the needle bar mechanism relative to the sewing object along a direction parallel to the horizontal direction; and

an up-down mechanism (66) which can move the needle bar mechanism to a lower position and an upper position, the lower position is the up-down position where the needle bar mechanism can be located when sewing the sewing object, the upper position is higher than the lower position,

the shuttle mechanism and the needle bar mechanism located at the lower position are moved relative to the sewing object by the moving mechanism, and the shuttle and the needle bar are operated in synchronization with each other to sew the sewing object,

the sewing device is characterized in that,

the sewing device (1) comprises:

a setting unit (16) that sets the position of the needle bar mechanism in the vertical direction to which of the lower position and the upper position the needle bar mechanism is positioned when the needle bar mechanism is in the idle feed mode, wherein the idle feed mode is to drive the moving mechanism without moving the needle bar up and down, and to move the needle bar mechanism and the shuttle mechanism in the horizontal direction with respect to the sewing object; and

and a movement control unit that controls the vertical mechanism in accordance with the setting of the setting unit, and moves the vertical position of the needle bar mechanism during the idle feed to the lower position or the upper position.

2. The sewing apparatus of claim 1,

the sewing device is also provided with an acquisition part which acquires sewing data used for forming stitches on the sewing object,

the setting unit sets a position of the needle bar mechanism in the idle feed data indicating the idle feed, which is included in the sewing data acquired by the acquisition unit, to be located at any one of the lower position and the upper position,

the movement control unit controls the vertical mechanism according to the setting of the setting unit, and moves the vertical position of the needle bar mechanism to the lower position or the upper position during the idle feeding according to the sewing data.

3. Sewing device as claimed in claim 1 or 2,

the setting unit sets which of the lower position and the upper position is a vertical position of the needle bar mechanism when the needle bar mechanism and the shuttle mechanism are moved to a position corresponding to a predetermined origin position with respect to the sewing object by the air feed.

4. The sewing apparatus according to any one of claims 1 to 3,

the sewing device further comprises:

a beam portion (5) that supports the needle bar mechanism so that the needle bar mechanism can move in a first direction parallel to a horizontal direction; and

a holding mechanism (8) having a holding portion (80) that holds the sewing object at a position below the needle bar mechanism at the upper position,

the moving mechanism includes:

a conveying mechanism (9) for conveying the shuttle mechanism and the needle bar mechanism relative to the sewing object along the first direction; and

a conveying mechanism (10) that conveys the holding mechanism in a second direction parallel to the horizontal direction and orthogonal to the first direction,

the beam portion supports the needle bar mechanism on a side in the second direction with respect to the needle bar mechanism,

the setting unit sets a position of the needle bar mechanism in the up-down direction when a moving path of the needle bar relative to the sewing object passes by one side of the holding unit in the second direction or the other side of the holding unit in the second direction at the upper position.

5. The sewing apparatus of claim 4,

the sewing device further includes an upper holding portion configured to hold the vertical position of the needle bar mechanism at the upper position after the idle feeding when the movement control portion performs the idle feeding in a state where the vertical position of the needle bar mechanism is set to the upper position according to the setting of the setting portion and the idle feeding is performed to a position on one side of the needle bar mechanism in the second direction with respect to the holding portion.

6. Sewing device as claimed in claim 4 or 5,

the sewing device further includes a lower moving portion that moves the vertical position of the needle bar mechanism to the lower position after the idle feed when the movement control portion performs the idle feed in a state where the vertical position of the needle bar mechanism is set to the upper position according to the setting of the setting portion and the idle feed is performed to a position on the other side of the needle bar mechanism in the second direction with respect to the holding portion.

7. The sewing apparatus of claim 6,

the setting unit sets whether or not the needle bar mechanism is moved by the lower moving unit,

when the setting unit is set to move the needle bar mechanism by the lower moving unit, the lower moving unit moves the vertical position of the needle bar mechanism to the lower position after the idle feed.

8. Sewing device as claimed in claim 6 or 7,

the sewing device further includes a notification unit that notifies a warning after the idle feed and before the downward movement unit moves the vertical position of the needle bar mechanism to the downward position.

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