CN116262997A - Alignment method of jig and alignment program of jig - Google Patents

Abstract

The invention provides a jig alignment method and a jig alignment program capable of accurately arranging a plurality of pins at positions corresponding to a plurality of holes of a sewn object regardless of the size of the sewn object. In the jig alignment method, a control device of a sewing device captures coordinate data of a plurality of pins (S21), the control device relatively moves a head of the sewing device and a support frame to a position indicated by the coordinate data of a concerned pin among the plurality of pins, and indicates the position of the concerned pin indicated by the coordinate data according to the position of the support frame relative to the head (S26). In the jig alignment method, an operator aligns a target support member corresponding to the target pin among a plurality of support members with the position of the target pin, adjusts the position of the target support member relative to a support frame (S43), and fixes the target support member to the support frame (S44).

Description

Alignment method of jig and alignment program of jig

Technical Field

The invention relates to a jig alignment method and a jig alignment program.

Background

In the conventional sewing device, a holding plate for holding a sewn object is moved relative to a needle to form a stitch according to sewing data. The holding plate has a plurality of holes in an outer peripheral portion. The sewing device has a plurality of pins corresponding to the plurality of holes. The sewing device performs alignment of the holding plate by penetrating corresponding pins through a plurality of holes of the holding plate.

Prior art literature

Patent literature

Patent document 1: japanese patent application laid-open No. 2013-543739

Disclosure of Invention

Problems to be solved by the invention

In some sewing apparatuses, a jig is used instead of a holding plate, the jig including a support frame and a plurality of pins, the pins provided in correspondence with the holes being respectively inserted into a plurality of holes formed in a seam of an object to be sewn, so that the object to be sewn is held in a state of being spread and aligned with respect to the support frame. In this jig, when the size of the object to be sewn is large, it is difficult to accurately arrange the pins at positions corresponding to the holes of the object to be sewn.

The invention aims to provide a method for aligning a jig and a program for aligning the jig, wherein a plurality of pins can be accurately arranged at positions corresponding to a plurality of holes of a sewn object regardless of the size of the sewn object.

Solution for solving the problem

In the alignment method of the jig according to claim 1 of the present invention, the jig includes: a plurality of support members having pins protruding upward; and a support frame for fixing the plurality of support members in a position adjustable manner, wherein the support frame is configured to align the object to be sewn with respect to the support frame by penetrating a plurality of holes provided in the object to be sewn, the support frame comprising: a taking-in step in which a control device of the sewing device takes in the coordinate data of a plurality of pins; an instruction step of causing the controller to relatively move the head of the sewing device and the support frame to a position indicated by the coordinate data of the pin of interest among the plurality of pins, and instructing the position of the pin of interest indicated by the coordinate data based on the position of the support frame relative to the head; and a fixing step in which an operator aligns the support member of interest corresponding to the pin of interest among the plurality of support members with the position of the pin of interest, adjusts the position of the support member of interest with respect to the support frame, and fixes the support member of interest to the support frame. The positioning method of the jig according to claim 1 can determine the position of the support member with respect to the support frame by the sewing device, and therefore, a plurality of pins can be accurately arranged at positions corresponding to a plurality of holes of the object to be sewn regardless of the size of the object to be sewn.

In the capturing step of the jig aligning method according to claim 2, the control device captures the coordinate data from the stitching data of the stitch formed by the object held by the jig after alignment. In the jig alignment method according to claim 2, since the coordinate data is taken in from the sewing data in which the stitch is formed on the workpiece held by the jig after alignment, the support member can be aligned with respect to the support frame based on the coordinate data with higher reliability than in the case where the coordinate data and the sewing data are different. In addition, the control device can reduce the possibility of sewing based on the sewing data which does not correspond to the coordinate data when the sewing data is used for processing the sewing object held by the jig to form the stitch after the fixture is aligned.

In the instructing step of the jig aligning method according to claim 3, the controller instructs a position where the target pin is in contact with the presser foot when the presser foot provided on the head of the sewing apparatus is lowered from a raised position to a position between the raised position and the lowered position or the lowered position after relatively moving the head and the support frame to the position indicated by the coordinate data of the target pin, as the position of the target pin indicated by the coordinate data. In the jig alignment method according to claim 3, the position of the pin of interest indicated by the coordinate data is set to the position of the pin of interest indicated by the coordinate data, so that the operator can easily grasp the position of the pin of interest indicated by the coordinate data.

In the jig alignment method according to claim 4, the upper ends of the pins have tapered shapes with diameters smaller toward the upper side, the presser foot has a cylindrical shape having a hole smaller than 1.1 times the maximum diameter of the pins and having a size allowing at least a portion of the upper end of the pin concerned to be inserted therein, and in the fixing step, the position of the supporting member concerned with respect to the supporting frame is adjusted so that the position at which at least a portion of the upper end of the pin concerned is fitted into the hole of the presser foot when the presser foot of the sewing apparatus is lowered from the raised position, and the supporting member concerned is fixed to the supporting frame. In the jig alignment method according to claim 4, the position of the target support member with respect to the support frame is adjusted to the position of the upper portion of the target pin fitted into the hole of the presser foot, whereby it can be physically confirmed that the support member is disposed at the position of the target pin indicated by the coordinate data. The operator can perform the fixing step while judging whether the support member is disposed at the position of the pin of interest indicated by the coordinate data, based on whether the position of the hole in which the presser foot is fitted is located at a part of the upper end of the pin of interest.

The alignment method of the jig according to claim 5 further comprises: a sequence acquisition step in which the control device acquires a sequence in which the pins of interest are read out from the plurality of pins in the instruction step; a completion instruction acquisition step in which, after the fixing step, the control device acquires a completion instruction from the operator, the completion instruction indicating that the instruction step for the pin of interest whose order is next is possible; and a moving step of moving the presser foot of the sewing apparatus to the raised position when the completion instruction is acquired in the completion instruction acquisition step, the control apparatus performing the instruction step for the pin of interest in the order next after the moving step. The alignment method of the jig according to claim 5 can reliably avoid the step of indicating the pin of interest next in order in a state where the presser foot is not in the raised position.

In the jig alignment method according to claim 6, the jig alignment method further includes a sequence editing step in which the control device edits the sequence. The alignment method of the jig according to claim 6 can improve the convenience of the operator as compared with the case where the order cannot be edited.

In the alignment procedure of the jig of claim 7, the jig comprises: a plurality of support members having pins protruding upward; and a support frame for fixing the plurality of support members in a position adjustable manner, wherein the support frame is configured to perform positioning of the object to be sewn with respect to the support frame by inserting the plurality of pins through the plurality of holes provided in the object to be sewn, and wherein the positioning program of the jig includes instructions for causing a control device for controlling a sewing device for holding the support frame to perform the steps of: a capturing step of capturing coordinate data of a plurality of pins; and a step of relatively moving a head of the sewing device and the support frame to a position indicated by the coordinate data of the pin of interest among the plurality of pins, and indicating the position of the pin of interest indicated by the coordinate data based on the position of the support frame relative to the head. The positioning program of the jig enables the control device of the sewing device to indicate the position of the concerned supporting member relative to the supporting frame through the position of the supporting frame relative to the head. By observing the position of the support frame relative to the head, the operator can confirm the position of the support member of interest relative to the support frame and fix the support member to the support frame. The alignment program of the jig enables an operator to accurately arrange a plurality of pins at positions corresponding to a plurality of holes of a sewn object regardless of the size of the sewn object.

Drawings

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

Fig. 2 is a perspective view of the head 30.

Fig. 3 is a plan view of the sewing apparatus 1 in which the support frame 85 of the jig 8 is disposed at the attachment position.

Fig. 4 is a plan view of the sewing apparatus 1 in which the support frame 85 of the jig 8 is disposed at the limit position P2.

Fig. 5 is a perspective view of jig 8 in which a part of plurality of support members 140, 150 is temporarily arranged.

Fig. 6 is a block diagram showing the electrical configuration of the sewing apparatus 1 and the control apparatus 100.

Fig. 7 is a flowchart of the hole setting process.

Fig. 8 is an explanatory diagram showing a procedure of generating hole data E2 in the hole setting process.

Fig. 9 is a flowchart of the alignment method of the jig 8.

Fig. 10 (a) is a perspective view of a state where the relevant logout 145 is disposed below the intermediate leg 64 disposed at the raised position, and fig. 10 (B) is a perspective view of a state where the intermediate leg 64 lowered from the raised position is in contact with the upper end 146 of the attention pin 145.

Fig. 11 (a) is a schematic cross-sectional view showing a state where the logout 145 is disposed below the intermediate leg 64 disposed at the raised position, and fig. 11 (B) is a schematic cross-sectional view showing a state where the intermediate leg 64 lowered from the raised position is in contact with the upper end 146 of the attention pin 145.

Fig. 12 is an explanatory diagram showing a process of fixing the support member 150 to the support frame 85 by the alignment method of the jig 8.

Description of the reference numerals

1. A sewing device; 8. a jig; 16. 101, CPU; 30. a head; 64. a middle presser foot; 85. a support frame; 100. a control device; 122. a middle foot pressing mechanism; 145. a pin; 146. an upper end portion; 140. 150, a support member; H1-H22, holes.

Detailed Description

The physical structure of the sewing device 1 according to an embodiment of the present invention will be described. In the following description, the left and right, front and back, up and down, and the arrows in the figures are used. As shown in fig. 1 to 4, the sewing apparatus 1 is a door-type sewing apparatus, and includes a machine base 2, mounting tables 90F and 90R, stay portions 3 and 4, a synchronizing mechanism 31 (see fig. 6), a beam portion 5, a head portion 30, a shuttle mechanism 7 (see fig. 2), a jig 8 (see fig. 5), a moving mechanism 9 (see fig. 6), a conveying mechanism 10 (see fig. 6), and an operating portion 14.

As shown in fig. 1, the housing 2 includes a base 21, a mounting portion 22, openings 24 and 25, bellows portions 26 and 27, a frame 28, a lower rail 29 (see fig. 2), and a pair of rails. The base 21 is substantially rectangular parallelepiped. The mounting portion 22 forms an upper surface of the base 21, and is a plate extending parallel to a horizontal plane. The mounting portion 22 has an opening 23 extending in the left-right direction. The opening 24 is formed in the front-rear direction near the left end of the placement portion 22. The opening 25 is formed in the front-rear direction near the right end of the placement portion 22. The openings 24 and 25 are portions extending in a rectangular shape in plan view and opening upward between the front end portion and the rear end portion of the placement portion 22. The bellows portions 26, 27 cover the openings 24, 25, respectively. A pair of rails are provided below the bellows portions 26, 27. The pair of rails support the coupling portions 78, 79 of the conveying mechanism 10 so as to be movable in the front-rear direction. The frame 28 is a lattice-shaped structure, and supports the base 21 from below. As shown in fig. 2, the lower rail 29 extends in the left-right direction below the placement portion 22. The lower rail 29 supports the shuttle mechanism 7 so as to be movable laterally. The seat portion 2 is provided with a lower belt 94, a lower spline shaft 34, and a shuttle mechanism 7, which will be described later, below the mounting portion 22.

As shown in fig. 1, the mounting tables 90F and 90R support a support frame 85 described later so as to be slidable in the front-rear direction. The mounting table 90F is provided on the front side of the base 2, and the mounting table 90R is provided on the rear side of the base 2. The mounting tables 90F and 90R include a housing 41A and a receiving portion 42A. The frame 41A has a lattice shape elongated in the Y direction, and supports the receiving portion 42A from below. The receiving portion 42A includes a pair of left and right extending portions 96 extending in the Y direction, a pair of guide rails 95, and a plurality of rollers 39. The pair of extension portions 96 extend from the front end of the mounting table 90F to the rear end of the mounting table 90R. The pair of guide rails 95 are provided on the surfaces of the pair of extended portions 96 that face each other. The pair of guide rails 95 restricts the position of the support frame 85 in the X direction and guides it in the Y direction. The plurality of rollers 39 extend in the X direction and are arranged in the Y direction between the pair of guide rails 95. The support frame 85 slides in the Y direction on the plurality of rollers 39.

The pillar portions 3, 4 are each substantially quadrangular. The pillar portion 3 extends upward at a substantially center of the left end portion of the housing portion 2 in the front-rear direction. The pillar portion 4 extends upward at a substantially center of the right end portion of the housing portion 2 in the front-rear direction. The support column parts 3, 4 are separated in the left-right direction via the mounting part 22. The synchronizing mechanism 31 is a mechanism that synchronously drives the needle bar mechanism 6 and the shuttle mechanism 7, and includes a main motor 32 of fig. 6, an upper spline shaft 33, a lower spline shaft 34, and a transmission mechanism not shown in fig. 2. The main motor 32 is supported by the pillar portion 3. The upper spline shaft 33 and the lower spline shaft 34 extend in the left-right direction between the strut sections 3, 4. The transmission mechanism of the synchronizing mechanism 31 is accommodated in the column section 3, and transmits the power of the main motor 32 to the upper spline shaft 33 and the lower spline shaft 34.

As shown in fig. 2 and 6, the moving mechanism 9 is capable of moving the shuttle mechanism 7 and the needle bar mechanism 6 in a left-right direction parallel to a horizontal direction with respect to a workpiece, and the moving mechanism 9 includes an upper belt 93, a lower belt 94, an X motor 98, and a transmission mechanism, which will be described later. In the sewing apparatus 1 of this example, the jig 8 holds the object to be sewn. The X motor 98 is a pulse motor and is supported by the column section 4. The transmission mechanism of the moving mechanism 9 is housed in the column section 4, and transmits the power of the X motor 98 to the upper belt 93 and the lower belt 94. The upper belt 93 is fixed to the back 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 98.

As shown in fig. 1 and 2, the beam portion 5 extends in the left-right direction while being bridged between the pillar portions 3, 4. The beam 5 supports the needle bar mechanism 6 on the rear side with respect to the needle bar mechanism 6 so as to be movable in the left-right direction parallel to the horizontal direction. The beam 5 includes a housing 51, a bellows 52, and an upper rail 53. The housing 51 extends in the left-right direction at the upper end and the rear end of each of the strut sections 3, 4. The bellows-like portion 52 is provided at the front end portions of the strut portions 3 and 4 and the housing 51, and at both right and left end portions of the needle bar mechanism 6 described later. The upper rail 53 is bar-shaped extending in the left-right direction, and is provided between the pillar portions 3, 4. The upper rail 53 supports the needle bar mechanism 6 so as to be movable in the left-right direction. The housing 51 covers the upper rail 53, the upper side and the rear side of the upper spline shaft 33 of the synchronizing mechanism 31. The bellows 52 covers the upper rail 53, the front side of the upper spline shaft 33. The bellows portion 52 expands and contracts in accordance with the left-right movement of the needle bar mechanism 6.

The head 30 is provided above the mounting portion 22 and is located on the front side of the beam 5. The head 30 includes a needle bar mechanism 6 and a middle presser mechanism 122. The needle bar mechanism 6 includes a housing 60, an upper shaft 61, a transmission mechanism 62, and a needle bar 63, and can move the needle bar 63 up and down. The housing 60 has a box shape and houses the upper shaft 61. The back 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 driven by the moving mechanism 9 to move left and right along the upper rail 53 in the beam 5. 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 up-down direction, and can mount a needle 65 at the lower end. The needle bar 63 is coupled to the upper shaft 61, and moves up and down by the drive of the main motor 32.

As shown in fig. 2, 6 and 10, the medium presser mechanism 122 includes a medium presser 69, a medium presser motor 68 and a transmission mechanism (not shown). The middle presser bar 69 has a middle presser foot 64 at a lower end, and extends in the up-down direction parallel to the needle bar 63. The middle presser foot 64 is cylindrical and has a through hole 641 through which the needle 65 passes in accordance with the up-and-down movement of the needle bar 63, and swings to the up-and-down position, and intermittently presses the object to be sewn from above. The raised position is a position at which the middle presser 64 is separated from the sewn article, and at the uppermost side of the movable range of the middle presser 64. The lowered position is a position at which the middle presser 64 contacts the object to be sewn, and at which the middle presser 64 is at the lowest side of the movable range. The diameter D2 of the through hole 641 is substantially the same as the maximum diameter D3 of the pin 145 described later or is a size into which a part of the taper of the tip of the pin 145 can be inserted. Specifically, the diameter D2 of the through hole 641 is formed to a size not exceeding 1.1 times the maximum diameter D3 of the pin 145. As shown in fig. 11 (a), the presser foot 64 is attached to the presser bar 69 such that the axis M of the through hole 641 coincides with the axis M of the needle bar 63. As shown in fig. 2 and 6, the medium-pressure foot motor 68 is a pulse motor fixed to the upper surface of the housing 60. The middle presser foot motor 68 moves the middle presser bar 69 up and down, and moves the middle presser foot 64 up and down between the raised position and the lowered position. The transmission mechanism is coupled to the output shaft of the medium presser motor 68 and the medium presser 69, and transmits the rotation of the output shaft of the medium presser motor 68 to the medium presser 69.

The shuttle mechanism 7 is disposed below the needle bar mechanism 6 and is inside the housing 2. The shuttle mechanism 7 includes a housing 70, a lower shaft 71, a transmission mechanism 72, and a shuttle 73. The housing 70 has a box shape, and includes a needle plate 74 at the upper left end. The needle plate 74 has a needle receiving hole 75 through which the needle 65 can pass. Rong Zhenkong 75 is located below the needle 63. The back of the housing 70 is coupled to the lower strap 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 driven by the moving mechanism 9 to move left and right along the lower rail 29 in synchronization with the needle bar mechanism 6. The transmission mechanism 72 transmits the power of the lower spline shaft 34 to the lower shaft 71. The shuttle 73 is coupled to the lower shaft 71, and rotates in synchronization with the up-and-down movement of the needle bar 63 by the drive of the main motor 32.

As shown in fig. 3 and 6, the conveying mechanism 10 can move the jig 8 holding the object to be sewn back and forth relative to the head 30 having the needle bar mechanism 6 and the shuttle mechanism 7. The conveying mechanism 10 includes coupling portions 78, 79, mounting portions 88, 89, clamping portions 881, 891, and cylinders 91, 92. The left lower end portion of the coupling portion 78 is disposed on a rail located at the opening 24 of the seat portion 2. The right lower end portion of the coupling portion 79 is disposed on a rail located at the opening 25 of the seat portion 2. The connecting portion 78 has a mounting portion 88 fixed to the right front surface. The mounting portion 88 fixes a clamping portion 881 that can be switched to a closed state and an open state by the power of the cylinder 91 to the lower surface. The closed state of fig. 3 is a state in which any one of pins 116 to 120 of jig 8 described later can be brought into contact with and held. The open state, not shown, is a state separated from pins 116 to 120 of jig 8 described later. Similarly, the coupling portion 79 has a mounting portion 89 fixed to the left front surface. The mounting portion 89 fixes a clamping portion 891 that can be switched to a closed state and an open state by the power of the cylinder 92 to the lower surface. The closed state of fig. 3 is a state in which any one of pins 111 to 115 of jig 8 described later can be brought into contact with and held. The open state, not shown, is a state separated from pins 111 to 115 of jig 8 described later.

The conveying mechanism 10 includes a Y motor 99, a transfer mechanism, and a pair of belts below the placement unit 22. The Y motor 99 is a pulse motor. The transmission mechanism of the conveying mechanism 10 transmits the power of the Y motor 99 to the pair of belts fixed to the coupling portions 78, 79. The jig 8 held by the holding portions 881, 891 moves back and forth along a pair of rails of the housing 2 in accordance with the rotation of the Y motor 99.

The operation unit 14 is supported by the left end of the placement unit 22. The operation unit 14 includes the switch group 12 and the display unit 13 shown in fig. 6. The switch group 12 inputs various instructions according to an operation by an operator. The display unit 13 is a liquid crystal display, and can display various images.

As shown in fig. 5, the jig 8 includes a support frame 85 and a plurality of support members 140 and 150, and holds the object to be sewn inside the support frame 85 in a state in which the object to be sewn is positioned with respect to the support frame 85. The support frame 85 includes a frame body 850, pins 111 to 120, and a handle 85A. The frame 850 is a rectangular metal frame that is long in the Y direction in plan view. Grooves 851, 852 are formed on the upper surface of the housing 850. The groove portions 851, 852 are recessed downward from the upper surface of the support frame 85 between the inner periphery and the outer periphery of the support frame 85. The groove 851 is formed in a rectangular shape parallel to the inner periphery of the support frame 85 in a plan view on the inner periphery side of the support frame 85. The groove 852 is formed in a rectangular shape parallel to the inner periphery of the support frame 85 in a plan view on the outer periphery side of the support frame 85. The 5 pins 111 to 115 are provided at the right end portion of the support frame 85 and are arranged at predetermined intervals L in the front-rear direction. The 5 pins 116 to 120 are provided at the left end portion of the support frame 85 and are arranged at predetermined intervals L in the Y direction. The pins 111 to 115 and the pins 116 to 120 are arranged at the same positions as each other in the Y direction, and are opposed to each other in the X direction. The pins 111 to 120 are fixed to the upper surface of the housing 850 by fixing members such as screws penetrating the groove portions 851 and 852. Pins 111 to 120 protrude upward from the upper surface of housing 850. As shown in fig. 3 and 4, the handle 85A is provided at the left and right central positions of the front end portion and the rear end portion of the support frame 85, respectively. In fig. 5, illustration of the handle 85A is omitted.

The clamping portions 881 and 891 can clamp the pin located at the engagement position P1 among the pins 111 to 120. As shown in fig. 3 and 4, the engagement position P1 is a position provided on the front side of the movable range of the clamp portions 881 and 891, and is a position where the clamp portions 881 and 891 can engage with one of the left and right pairs of pins 111 and 116, the left and right pairs of pins 112 and 117, the left and right pairs of pins 113 and 118, the left and right pairs of pins 114 and 119, and the left and right pairs of pins 115 and 120 of the support frame 85. The limit position P2 is the rearmost position where the mounting portions 88, 89 can move rearward. The distance between the engagement position P1 and the limit position P2 is equal to the predetermined interval L, for example. The attachment portions 88 and 89 can perform switching grasping of the support frame 85 when the sewing device 1 performs a sewing operation. The "switching grip" refers to an operation in which the grip portions 881, 891 repeatedly grip and release the pins to grip the other pins.

Each of the plurality of support members 140 and 150 has a pin 145 protruding upward at one end. The other end portions of the plurality of support members 140 and 150 are supported by the support frame 85 so as to be adjustable in position. The structure of the support members 140 and 150 will be described by taking the case where the longitudinal direction of the support members 140 and 150 is the left-right direction and the pin 145 is disposed at the right portion of the support members 140 and 150 as an example.

The support member 140 has a rectangular shape long in the left-right direction in plan view, and includes a fixing portion 141, a support portion 142, a pin 145, and fixing members 127, 128, 147, and 148. The fixing portion 141 extends parallel to the horizontal plane at the left portion of the support member 140. Long holes 143, 144 long in the left-right direction are formed in the left portion of the fixing portion 141. The long holes 143, 144 are separated in the front-rear direction. The range of the elongated holes 143, 144 in the left-right direction is longer than the interval between the groove portions 851, 852 on the left, right, front and rear sides of the support frame 85.

The support portion 142 is a portion extending downward from the right end of the fixing portion 141 and then extending rightward, and has a rectangular plate shape in plan view. The upper surface of the supporting portion 142 is located below the upper surface of the fixing portion 141. The distance between the upper surface of the support portion 142 and the upper surface of the fixing portion 141 is substantially equal to the thickness of the frame 850 of the support frame 85. The thickness of the frame 850 is the length of the frame 850 in the up-down direction. The right-hand corner of the support 142 is chamfered. The pin 145 protrudes upward in a columnar shape from the right front portion of the support portion 142. The pin 145 may protrude upward from the right rear portion of the support portion 142 in a columnar shape. The upper end 146 of the pin 145 has a tapered shape with a diameter smaller toward the upper side. The maximum diameter D3 of the pin 145 is larger than the diameter D2 of the through hole 641 of the medium presser 64. The upper end 146 of this embodiment is in the form of an upwardly projecting hemisphere.

The fixing members 127, 128, 147, 148 are used when fixing the support member 140 to the support frame 85. The fixing members 127 and 128 are bolts having heads, for example, and the fixing members 147 and 148 are nuts screwed to the fixing members 127 and 128. When fixing the support member 140 to the support frame 85, the operator passes the fixing member 127 passing through one of the groove portions 851, 852 through the long hole 143 from the upper side, and engages the fixing member 147 with the lower end portion of the fixing member 127. The operator penetrates the fixing member 128 penetrating the other one of the groove portions 851, 852 from the upper side into the long hole 144, and engages the fixing member 148 with the lower end portion of the fixing member 128.

In the support member 150, the same reference numerals are given to the same structures as the support member 140. The support member 150 has a rectangular shape long in the left-right direction in a plan view, and includes a fixing portion 151, an adjustment member 170, a support portion 152, a pin 145, and fixing members 125 to 128, 147, 148, 155, and 156. The fixing portion 151 extends parallel to the horizontal plane at the left portion of the support member 150. As shown in fig. 12, the support member 150 of the present embodiment has a plurality of types of fixing portions 151 having different lengths in the lateral direction. As shown in fig. 5, long holes 153, 154 long in the left-right direction are formed in the left portion of the fixing portion 151. The long holes 153, 154 are separated in the front-rear direction. The range of the elongated holes 153, 154 in the left-right direction is longer than the interval between the left and right groove portions 851, 852 of the support frame 85. A pair of front and rear through holes (not shown) are provided in the right part of the fixing part 151. At least one of the through holes is formed as a long hole long in the front-rear direction.

The support portion 152 and the fixing portion 151 are formed independently of each other, and are fixed to the fixing portion 151 by fixing members 125, 126, 155, 156 so as to be able to adjust the left-right position and angle with respect to the fixing portion 151. The fixing members 125 and 126 are bolts having heads, for example, and the fixing members 155 and 156 are nuts screwed to the fixing members 125 and 126. The support portion 152 includes a fixing portion 157 and a support portion 158. The fixing portion 157 extends parallel to the horizontal plane at the left portion of the supporting portion 152. Long holes 159, 160 long in the left-right direction are formed in the left portion of the fixing portion 157. The long holes 159, 160 are separated in the front-rear direction. When the operator positions and fixes the support portion 152 with respect to the fixing portion 151, the fixing members 125 and 126 are inserted into the right hole of the fixing portion 151 from the upper side in a posture in which the heads of the fixing members 125 and 126 are disposed at the upper side. The operator inserts the fixing members 125 and 126 into the long holes 159 and 160, respectively, and then engages with the fixing members 155 and 156. The support portion 158 is a portion extending downward from the right end of the fixing portion 157 and then extending rightward, and has a rectangular plate shape in plan view. The upper surface of the supporting portion 158 is located below the upper surface of the fixing portion 157. The distance between the upper surface of the supporting portion 158 and the upper surface of the fixing portion 157 is substantially the same as the thickness of the frame 850 of the supporting frame 85. The right-hand corner of the support 158 is chamfered. The pin 145 similar to the support member 140 protrudes upward in a columnar shape from the right rear portion of the support portion 158. The pin 145 may protrude upward from the right front portion of the support portion 158 in a columnar shape. The upper end 146 of the pin 145 is in the form of an upwardly projecting hemisphere.

The adjustment member 170 is provided to eliminate the front-rear shake when the support member 150 is fixed to the support frame 85. The adjustment member 170 is made to have the same plate thickness as the support portion 152, so that the height of the support portion 158 when fixed to the support frame 85 is made to be the same as the height of the support portion 142, and the pins 145 are arranged on the same horizontal plane in the support member 140 and the support member 150. The adjustment member 170 is rectangular plate-like and long in the front-rear direction in plan view. The adjustment member 170 has a long hole 171 formed long in the front-rear direction. The range of formation of long hole 171 is larger than the front-rear interval of long holes 153, 154.

The fixing members 127, 128, 147, 148, which are the same as the support member 140, are used when fixing the support member 150 to the support frame 85. When fixing the support member 150 to the support frame 85, the operator inserts the fixing member 127 inserted into one of the groove portions 851, 852 from above into the long hole 171 of the adjustment member 170 and the long hole 143 of the fixing portion 151, and engages the fixing member 147 with the lower end portion of the fixing member 127. The operator inserts the fixing member 128 inserted into the other one of the groove portions 851, 852 from the upper side into the long hole 171 of the adjustment member 170 and the long hole 144 of the fixing portion 151, and engages the fixing member 148 with the lower end portion of the fixing member 128.

Referring to fig. 6, the electrical configuration of the sewing device 1 and the control device 100 of the sewing device 1 will be described. The control unit 15 of the sewing device 1 includes a CPU16, a ROM17, a RAM18, a storage device 19, a communication I/F11, an input/output interface (I/O) 20, and drive circuits 41 to 47. The CPU16 controls the operation of the sewing device 1. The ROM17 stores programs and the like for executing various processes in advance. The RAM18 temporarily stores various information generated in the execution of various processes. The storage device 19 is nonvolatile and stores various setting values. The communication I/F11 communicates with the communication I/F105 of the control device 100 in a wired or wireless manner.

The driving circuits 41 to 47, encoders 55 to 58, and switch block 12 are connected to the I/O20. The driving circuit 41 is connected to the main motor 32 of the synchronization mechanism 31, and drives the main motor 32 in accordance with a control instruction of the CPU 16. The drive circuit 42 is connected to the X motor 98 of the moving mechanism 9, and drives the X motor 98 in accordance with a control instruction of the CPU 16. The driving circuit 43 is connected to the Y motor 99 of the conveyance mechanism 10, and drives the Y motor 99 in accordance with a control instruction of the CPU 16. The driving circuit 44 is connected to the cylinder 91 of the clamp 881, and drives the cylinder 91 in accordance with a control instruction of the CPU 16. The driving circuit 45 is connected to the cylinder 92 of the holding portion 891, and drives the cylinder 92 in accordance with a control instruction of the CPU 16. The drive circuit 46 is connected to the middle presser foot motor 68, and drives the middle presser foot motor 68 in accordance with a control instruction of the CPU 16. The driving circuit 47 is connected to the display unit 13, and displays various information on the display unit 13 in accordance with a control instruction of the CPU 16.

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 I/O20. The detection result of the encoder 55 indicates the up-down positions of the needle bar 63 and the needle 65. The encoder 56 detects the rotational direction, rotational position, rotational speed of the output shaft of the X motor 98, and inputs the detection result to the I/O20. The detection result of the encoder 56 indicates the left and right positions of the needle bar mechanism 6 and the shuttle mechanism 7. The encoder 57 detects the rotational direction, rotational position, rotational speed of the output shaft of the Y motor 99, and inputs the detection result to the I/O20. The detection result of the encoder 57 indicates the front-rear position of the jig 8. The encoder 58 detects the rotational direction, rotational position, rotational speed of the output shaft of the medium platen motor 68, and inputs the detection result to the I/O20. The detection result of the encoder 58 indicates the up-down position of the middle presser foot 64. The switch group 12 detects various indications, and inputs the detection result to the I/O20.

The control device 100 is a general-purpose information processing device such as a personal computer. The control device 100 includes a CPU101, a ROM102, a RAM103, a storage device 104, a communication I/F105, and an input/output interface (I/O) 107. The CPU101 is responsible for the control of the control device 100. The CPU101 is electrically connected to the ROM102, RAM103, storage device 104, communication I/F105, and I/O107 via a bus 106.

The ROM102 stores a boot program, BIOS, and the like. The RAM103 stores temporary data. The storage device 104 is a nonvolatile storage device that stores various setting values. The communication I/F105 communicates with the communication I/F11 of the sewing apparatus 1 in a wired or wireless manner. The I/O107 is connected to the display unit 108 and the input unit 109. The input section 109 includes a mouse, a keyboard, and the like, and is used to input various instructions.

The hole setting process performed by the control device 100 will be described with reference to fig. 7, using the specific example shown in fig. 8. The hole setting process is a process of setting positions of a plurality of holes formed in a seam of a sewn object based on sewing data. The plurality of holes are used when positioning a sewn object to be sewn based on the sewing data with respect to the support frame 85. When starting the hole setting process, the operator operates the input unit 109 to input a start instruction including such information to the control device 100: the method includes the steps of instructing to set a plurality of holes based on new sewing data or updating data in which the plurality of holes are set based on the sewing data. The operator inputs an instruction to update the data, for example, when the operator wants to add or omit the pin 145, when he wants to change the position, the number, or the like of the holes. When the control device 100 detects a start instruction via the input section 109, a program for executing the hole setting process is read out from the storage device 104 to the RAM103 and executed.

In fig. 8, for simplicity of explanation, the structure of the support frame 85 and the like is schematically illustrated. The pins at the right end portion of the support frame 85 are three pins 111, 112, 113 in order from the front end side, and the pins at the left end portion of the support frame 85 are three pins 116, 117, 118 in order from the front end side.

As shown in fig. 7, the CPU101 determines whether or not to start a process of setting a plurality of holes based on new sewing data (S1). When the start instruction includes an instruction to set a plurality of holes based on the new sewing data (S1: yes), the CPU101 acquires the sewing data (S2). The sewing data includes coordinate data indicating a position of a needle drop point for forming a stitch on the object to be sewn. The coordinate data is represented by a sewing coordinate system driving the X motor 98 and the Y motor 99. As shown in fig. 8 (a), the CPU101 sets a stitch line L2 at a predetermined distance D1 outside from a stitch forming position L1 determined based on the sewing data (S3). The distance D1 may be set by the operator or may be automatically set by the CPU101 according to the type of the sewing data, the material, size, thickness, and the like of the object to be sewn. The distance D1 may not be a constant value, and may be different between a straight line portion and a curved line portion, for example.

The CPU101 determines the size of the support frame 85 of the jig 8 based on the size of the object to be sewn determined by the hemming (S4). The sewing device 1 of the present embodiment can mount a plurality of kinds of support frames 85 having different lengths in the X direction and the Y direction. The CPU101 determines, from among the plurality of types of support frames 85, a support frame 85 in which the sewn object indicated by the seam allowance set in S3 falls inside the support frame 85. In a specific example, the support frame 85 having the pins 111 to 113 and 116 to 118 shown in fig. 8 (B) is determined.

As shown in fig. 8B, the CPU101 sets the arrangement of the sewing object with respect to the support frame 85 determined in S4 (S5). The arrangement of the object to be sewn with respect to the support frame 85 may be set by the operator, or may be automatically set by the CPU101 in accordance with the arrangement conditions stored in advance, the size of the object to be sewn with respect to the support frame 85, the length of the support member that can be used, the material, size, thickness, and the like of the object to be sewn. The CPU101 selects the arrangement condition from among left, center, and right, for example, in the X direction. The left side is a condition that the center of the sewn article in the left-right direction is disposed to the left of the center of the support frame 85 in the left-right direction. The center alignment is a condition in which the center of the sewn article in the left-right direction is arranged at the center of the support frame 85 in the left-right direction. The right side is a condition that the center of the sewn article in the right side is disposed right of the center of the support frame 85 in the right side. Similarly, the CPU101 selects the arrangement condition from among front, center alignment, and rear in the Y direction.

The CPU101 acquires a hole setting condition (S6). The well setting conditions define the arrangement conditions of the plurality of wells. The hole setting conditions include, for example, the interval between adjacent holes, the size of the hole, the distance from the stitch, and the like. The hole setting conditions may be different from each other depending on the shape of the stitch. For example, the interval between the adjacent holes may be set to be longer in the portion where the linear trace is formed than in the portion where the curved trace is formed. The hole setting condition may include a condition that pins 111 to 113, 116 to 118 of the support frame 85 are not disposed at a portion of the hole closest to the support frame 85. The hole setting condition may include a condition in which a plurality of holes are set so that the plurality of support members 140 and 150 can be fixed to the support frame 85 without intersecting each other.

As shown in fig. 8C, the CPU101 sets a plurality of holes H1 to H22 at the hemming based on the hole setting conditions acquired in S6 (S7). The number and arrangement of the plurality of holes H1 to H22 may be instructed by the operator operating the input unit 109. The CPU101 generates coordinate data representing the center positions of the plurality of holes as the positions of the holes. The coordinate data is represented by a sewing coordinate system.

The CPU101 sets the order of the plurality of holes set in S7 (S8). The procedure is to fix the support members 140 and 150 corresponding to the holes to the support frame 85 at the time of alignment of the jig 8 described later. The order may be set by the operator or may be automatically set by the CPU101 in consideration of operability at the time of alignment. For example, in the alignment method described later, when performing the switching grip processing of the support frame 85, the CPU101 determines the order so that the number of times of movement and switching grip of the support frame 85 is reduced. Regarding whether or not to perform the switching grip processing, the CPU101 may determine based on the size of the support frame 85 and the predetermined interval L of the sewing device 1, and determine to perform the switching grip processing when the length of the support frame 85 in the front-rear direction is longer than the predetermined interval L. In the case of positioning the jig 8 by one operator, the CPU101 determines the order clockwise or counterclockwise along the contour of the slit edge in order to reduce the movement of the operator. When two operators perform operations by dividing the right side and the left side of the sewing apparatus 1, the CPU101 sets the order so that the holes through which the pins 145 of the support members 140 and 150 fixed to the right side of the support frame 85 penetrate and the holes through which the pins 145 of the support members 140 and 150 fixed to the left side penetrate in the outline of the object to be sewn alternate. The CPU101 may receive the aligned operation condition from the operator and automatically set the order according to the received operation condition. In the specific example of fig. 8 (C), the order is set counterclockwise from the hole H1 at the rear left.

The CPU101 associates and stores the hole data E2 including the coordinate data generated in S7 and the order set in S8 with the sewing data E acquired in S2 (S9). According to S9, the sewing data E includes stitch data E1 and hole data E2 for forming a stitch. The CPU101 may store the sewing data in association with the sewing data, the type of the support frame 85, and the arrangement of the object to be sewn with respect to the support frame 85. The CPU101 may generate cutting data for cutting the object to be sewn along the outer periphery of the seam and forming a plurality of holes in the seam.

When the start instruction includes an instruction to update the data in which the plurality of holes are set based on the sewing data (S1: NO), the CPU101 reads out the sewing data designated by the operator and already corresponding to the plurality of holes (S11). The CPU101 displays the stitch forming position L1, the stitch edge, the positions of the plurality of holes, and the like on the display unit 108 based on the read sewing data (S12).

The CPU101 determines whether or not a change condition is acquired (S13). After confirming the image displayed on the display unit 108, the operator inputs a change condition when changing the coordinate data. For example, when adding a hole, the operator inputs a change condition including the position of the added hole, whether or not to change the arrangement of the plurality of holes that have been set with the addition of the hole, and whether or not to reset the order. For example, when deleting a hole, the operator inputs a change condition including a position of the hole to be deleted, whether to change the arrangement of the plurality of holes that have been set with the deletion of the hole, and whether to reset the order.

When the change condition is acquired (yes in S13), the CPU101 changes the coordinate data in accordance with the acquired change condition (S14). The CPU101 determines whether or not an end instruction to end the change of the coordinate data is acquired (S15). When the operator finishes changing the coordinate data, the operator inputs a finish instruction. If the change condition is not acquired (no in S13) or if the end instruction is not acquired (no in S15), the CPU101 returns the process to S13. When the end instruction is acquired (yes in S15), the CPU101 updates the coordinate data of the sewing data read out in S11 in accordance with the coordinate data changed in S14 (S16). Next to S9 or S16, the CPU101 ends the hole setting process.

A method of aligning the jig 8 by the sewing apparatus 1 and the operator will be described with reference to fig. 9 to 12, with reference to specific examples of fig. 8 and 12. In a specific example, a case will be described in which a support member selected from a plurality of support members 150 having different lengths from each other between the support member 140 and the fixing portion 151 is used as the plurality of support members 140 and 150. The alignment method of the jig 8 is performed in a state in which the needle 65 is detached from the needle bar 63.

When starting the alignment of the jig 8 using the sewing apparatus 1, the operator operates the switch group 12 to input a start instruction including information specifying the sewing data E of fig. 8 to the sewing apparatus 1 (S41). When the sewing device 1 detects a start instruction via the switch group 12, a program for executing the alignment process is read out from the storage device 19 to the RAM18 and executed.

The CPU16 fetches the sewing data E specified by the start instruction (S21). The sewing data E includes stitch data E1 for forming a stitch on the workpiece held by the jig 8 after alignment. The CPU16 sets the hole data E2 in the sewing data E as coordinate data of the plurality of pins 145. The CPU16 displays the type of the support frame 85 included in the sewing data E on the display unit 13, and causes the support frame 85 to be placed at the mounting position of fig. 3 on the mounting unit 22 (S22). The attachment position is an engagement position P1 for the rearmost pins 113 and 118 among the pins 111 to 113 and 116 to 118. The CPU16 stands by before the support frame 85 is mounted (S23: no). The operator operates the switch group 12 by placing the support frame 85 displayed on the display unit 13 at the mounting position on the mounting unit 22, and inputs a mounting instruction for the rearmost pin 113, 118 out of the plurality of pins 111 to 113, 116 to 118 provided for holding the support frame 85 by the holding units 881, 891 (S42). When the CPU16 detects the mounting instruction (S23: yes), it drives the cylinder 91 to clamp the pin 118 in the clamping part 881, and drives the cylinder 92 to clamp the pin 113 in the clamping part 891.

The CPU16 sets a variable N for sequentially reading out the coordinate data of the hole data E2 included in the sewing data E acquired in S21 to 1 (S24). The CPU16 acquires nth coordinate data from the hole data E2 (S25). The nth coordinate data indicates the position of the attention pin 145 among the plurality of pins 145. The CPU16 drives the X motor 98 and the Y motor 99 to relatively move the head 30 and the support frame 85 to the position of the attention pin 145 indicated by the nth coordinate data (S26). In S26, the CPU16 relatively moves the head 30 of the sewing apparatus 1 and the support frame 85 to the position indicated by the coordinate data of the target pin 145 among the plurality of pins 145, and instructs the operator to the position of the target pin 145 indicated by the coordinate data based on the position of the support frame 85 relative to the head 30. After the head 30 and the support frame 85 are moved relatively to the position indicated by the coordinate data of the target pin 145, the CPU16 of the present embodiment instructs the position where the target pin 145 indicated by the coordinate data is located at the position where the center presser foot 64 is brought into contact with the center presser foot 145 when the center presser foot 64 provided in the head 30 of the sewing apparatus 1 is lowered from the raised position. The CPU16 displays the completion of the movement on the display unit 13 (S27). The CPU16 may display the length of the usable support member or the distance between the support frame 85 and the target pin 145 on the display unit 13 so that the operator can easily select the support member fixed to the support frame 85 from the plurality of support members 140 and 150 and dispose the target pin 145 at the indicated position. The CPU16 may display the side of the support frame 85 to which the support member used is fixed on the display unit 13. Hereinafter, a support member selected by the operator from the plurality of support members 140 and 150 will be referred to as a focus support member. In the following description, the support member 140 is described as a member selected as a target support member.

After confirming that the movement of the support frame 85 with respect to the head 30 is completed by the display unit 13, the operator adjusts the position of the off-lock 145 of the attention support member 140 to the position indicated by the position of the support frame 85 with respect to the head 30 (S43). More specifically, as shown in fig. 10 (a) and 11 (a), the operator positions the support member 140 at a position where the pin 145 of the support member 140 is located below the middle presser foot 64 and the needle bar 63 and the long holes 143, 144 of the support member 140 are arranged on the groove portions 851, 852 of the support frame 85. The operator adjusts the orientation of the support member 140 relative to the support frame 85 as desired. As shown in fig. 10 (B) and 11 (B), the operator manually moves the intermediate presser 64 from the upper position to the lower position, and confirms whether or not the adjustment of the position of the attention support member 140 with respect to the support frame 85 is completed, based on whether or not a part of the upper end side of the upper end portion 146 of the cancellation stop 145 is inserted into the through hole 641 of the intermediate presser 64. When the position of the attention support member 140 with respect to the support frame 85 is properly adjusted, a part of the hemispherical upper end 146 of the off stopper 145 is inserted into the through hole 641 of the intermediate presser 64 from the lower side. Since the maximum diameter D3 of the pin 145 of the present embodiment is larger than the diameter D2 of the through hole 641 of the middle presser 64, the middle presser 64 is in contact with the upper end 146 of the pin 145 at a contact position above the lowered position. At this time, the axis M of the through hole 641 coincides with the axis C of the off-log 145. The operator may temporarily fix the target support member 140 to the support frame 85 before manually lowering the intermediate presser 64 from the upper position to the lower position. When the attention is paid to the support member 150, the operator appropriately adjusts the position and angle of the support portion 152 with respect to the fixing portion 151, and S43 is performed.

After confirming that the adjustment of the position of the target support member 140 with respect to the support frame 85 is properly completed, the operator fixes the target support member 140 to the support frame 85 using the fixing members 127, 128, 147, 148 (S44). In S44, the operator adjusts the position of the target support member 140 with respect to the support frame 85 to a position at which a part of the upper end 146 of the switch cancellation 145 is fitted into the through hole 641 of the middle presser foot 64 when the middle presser foot 64 of the sewing apparatus 1 is lowered from the raised position, and fixes the target support member 140 to the support frame 85. As shown in fig. 12 (a), when the variable N is 1, the attention support member 140 is fixed to the left side of the support frame 85. The operator operates the switch group 12 to input a completion instruction indicating that the work of fixing the target support member 140 to the support frame 85 is completed (S45).

The CPU16 determines whether the nth coordinate data is the last coordinate data in the order contained in the hole data E2 (S28). In the case where the nth coordinate data is not the last coordinate data (S28: no), the CPU16 judges whether or not a completion instruction is acquired via the switch group 12 (S29). The CPU16 stands by when the completion instruction is not acquired (S29: no) until the completion instruction is acquired. When the CPU16 acquires the completion instruction (yes in S29), it drives the middle presser foot motor 68 to move the middle presser foot 64 to the raised position (S30). The CPU16 adds 1 to the variable N (S32).

The CPU16 determines whether or not to execute the switching grip processing (S33). In the case where the hole data E2 includes a switching grip instruction to perform the switching grip processing, the CPU16 determines whether to perform the switching grip processing based on whether or not the switching grip instruction is included. The hole data E2 does not include a switching grip instruction to perform the switching grip processing, but in the case where the nth coordinate data is located on the front side of the movable region inside the support frame 85, the CPU16 determines to perform the switching grip processing, and in the case where the nth coordinate data is located in the movable region inside the support frame 85, the CPU16 determines not to perform the switching grip processing. When the switching grip instruction is executed (S33: yes), the CPU16 performs a well-known switching grip process (S34).

In the support frame 85 of the specific example, in the switching grip process when the state in which the rearmost group of pins 113, 118 is gripped by the gripping portions 881, 891 is changed from the state in which the rearmost group of pins 112, 117 is gripped by the group of pins 112, 117 adjacent to the rearmost group of pins 113, 118, the CPU16 sets the rear side to the feed direction and the front side to the return direction. The CPU16 drives the Y motor 99 to move the mounting portions 88, 89 toward the limit position P2. The CPU16 drives the cylinders 91, 92 to switch the clamping portions 881, 891 from the holding state to the releasing state. The CPU16 controls the Y motor 99 to move the mounting portions 88, 89 in the return direction by a predetermined interval L. The CPU16 drives the cylinders 91, 92 to switch the clamping portions 881, 891 from the released state to the held state, and then releases the set of pins 112, 117 in the return direction of the set of pins 113, 118 held, among the pins 111 to 113, 116 to 118 of the clamping jig 8.

If the switching grip processing is not executed (S33: no), or if S34 is continued, the CPU16 returns the processing to S25 to perform processing related to the coordinate data in the next order. When the nth coordinate data is the last coordinate data (yes in S28), the CPU16 displays a message indicating the completion of alignment of the jig 8 on the display unit 13 (S31), and ends the alignment process. In a specific example, according to the alignment method of the jig 8, for example, the target support member of the hole H1 in order 1 is set as the support member 140, the target support members of the holes H2 to H22 in order 2 to 22 are set as the support member 150, and the plurality of support members 140 and 150 are sequentially fixed to the support frame 85. As shown in fig. 12 (B), by performing the alignment method of the jig 8, the plurality of support members 140, 150 are fixed to the support frame 85 in the posture in which the pins 145 are arranged at positions indicated by the coordinate data of the hole data E2.

In order to confirm whether or not the support members 140 and 150 are fixed at the positions overlapping the stitch forming position L1, the operator may drive the sewing device 1 to move the jig 8 and the head 30 relative to each other in accordance with the stitch data E1 of the sewing data E. When the support members 140 and 150 are disposed at the positions below the needle bar 63, the CPU16 of the sewing apparatus 1 may read out the coordinate data corresponding to the support members 140 and 150 from the hole data E2, and execute S26, S27, S43, S44, and S45 again. In the case where the attention support member 150 is fixed to the support frame 85, when interference occurs with the already fixed support members 140 and 150, the CPU16 of the sewing apparatus 1 may read out the coordinate data concerning the already fixed support members 140 and 150, and execute S26, S27, S43, S44, and S45 again.

When sewing is performed by the jig 8, the operator operates the sewing apparatus 1 to release the clamping portions 881 and 891, and then moves the jig 8 to a predetermined work position to perform a work of attaching the workpiece to the jig 8. The work position is, for example, on the mounting table 90F. The operator sequentially inserts the corresponding pins 145 into each of the plurality of holes H1 to H22 of the workpiece. When a preferred insertion order is determined in the case where the plurality of holes H1 to H22 of the object to be sewn are displayed on the corresponding pins 145, the sewing apparatus 1 may display the insertion order on the display unit 13. After the work of attaching the object to be sewn to the jig 8 is completed, the operator disposes the jig 8 at the attachment position, operates the switch group 12, and inputs an instruction to start sewing. The sewing device 1 drives the main motor 32, the X motor 98, the Y motor 99, and the middle presser motor 68 based on the stitch data E1 of the sewing data E acquired in S21, and forms a stitch on the object to be sewn.

In the above embodiment, the sewing device 1, the jig 8, the head 30, the middle presser 64, the support frame 85, the pin 145, the upper end 146, and the support member 150 are examples of the sewing device, the jig, the head, the middle presser, the support frame, the pin, the upper end, and the support member of the present invention, respectively. The CPU16 and the control device 100 are examples of a control device of the sewing device of the present invention. S21 is an example of the acquisition step and the sequence acquisition step of the present invention. S26 is an example of the instruction process of the present invention. S43 and S44 are examples of the fixing step of the present invention. S29 is an example of the completion instruction acquisition process of the present invention. S30 is an example of the moving process of the present invention. S8 and S14 are examples of the sequential editing process according to the present invention.

In the positioning method of the jig 8 according to the above embodiment, the jig 8 is assembled in which the plurality of pins 145 are inserted into the plurality of holes H1 to H22 provided in the object to be sewn by the sewing device 1, respectively, thereby positioning the object to be sewn with respect to the support frame 85. The jig 8 includes a plurality of support members 140 and 150 having pins 145 protruding upward, and a support frame 85 for fixing the plurality of support members 140 and 150 in a position adjustable manner. The jig 8 alignment method includes an acquisition step (S21), an instruction step (S26), and a fixing step (S43, S44). In the taking-in step, the CPU16 of the sewing apparatus 1 takes in the coordinate data of the plurality of pins 145 (S21). In the instruction step, the CPU16 of the sewing apparatus 1 relatively moves the head 30 and the support frame 85 of the sewing apparatus 1 to the position indicated by the coordinate data of the target pin 145 among the plurality of pins 145, and instructs the position of the target pin 145 indicated by the coordinate data based on the position of the support frame 85 relative to the head 30 (S26). In the fixing step, the operator aligns the target support member 140 corresponding to the target pin 145 among the plurality of support members 140, 150 to the position of the target support member 140 with respect to the support frame 85 (S43), adjusts the position of the target support member 140 with respect to the support frame 85, and fixes the target support member 140 to the support frame 85 (S44). The same applies to the fixing step when the support member 150 of the plurality of support members 140 and 150 is the attention support member. Therefore, the positioning method of the jig 8 can determine the position of the support member 150 with respect to the support frame 85 by the sewing apparatus 1, and therefore, even when the object to be sewn is relatively large, the plurality of pins 145 can be accurately arranged at positions corresponding to the plurality of holes H1 to H22 of the object to be sewn. The pin 145 is provided at one end portion in the longitudinal direction of the support member 140, and the long holes 143, 144 are formed at the other end portion in the longitudinal direction of the support member 140. The support frame 85 fixes the other end portion of the support member 140 so as to be able to adjust the position. Therefore, the support member 140 has a larger distance from the support frame 85 to the pin 145 than when the pin 145 is provided at the other end of the support member 140, and the length of the support member 140 in the longitudinal direction can be reduced. The supporting member 150 is also the same as the supporting member 140.

In the taking-in step, the CPU16 takes in the coordinate data from the sewing data E for forming the stitch on the workpiece held by the jig 8 after the alignment (S21). Therefore, in the positioning method of the jig 8, since the coordinate data is taken in from the sewing data E for forming the stitch on the workpiece held by the jig 8 after the positioning, the positioning of the support member 150 with respect to the support frame 85 can be performed based on the coordinate data with higher reliability than in the case where the coordinate data and the sewing data E are different. Further, when performing the process of forming the stitch on the object to be sewn held by the jig 8 in accordance with the sewing data E after the alignment of the jig 8, the CPU16 can reduce the possibility of sewing based on the sewing data E which does not correspond to the coordinate data.

In the instruction step, the CPU16 relatively moves the head 30 and the support frame 85 to the position indicated by the coordinate data of the target pin 145, and then instructs the position where the target pin 145 contacts the middle presser foot 64 when the middle presser foot 64 provided in the head 30 of the sewing apparatus 1 is lowered from the raised position to the position between the raised position and the lowered position or the lowered position as the position of the target pin 145 indicated by the coordinate data (S26). The alignment method of the jig 8 allows the operator to easily grasp the position of the attention pin 145 indicated by the coordinate data by setting the position where the intermediate leg 64 is in contact with the pin 145 as the position of the attention pin 145 indicated by the coordinate data.

The upper ends 146 of the plurality of pins 145 have tapered shapes with smaller diameters going upward. The middle presser foot 64 is cylindrical with a through hole 641, and the diameter D2 of the through hole 641 is smaller than 1.1 times the maximum diameter D3 of the plurality of pins 145, and at least a part of the upper end 146 of the target pin 145 can be inserted. In the fixing step, the position of the target support member 140 relative to the support frame 85 is adjusted so that at least a part of the upper end 146 of the stop log 145 fits into the through hole 641 of the middle presser foot 64 when the middle presser foot 64 of the sewing apparatus 1 is lowered from the raised position, and the target support member 140 is fixed to the support frame 85 (S43, S44). The alignment method of the jig 8 can physically confirm that the support member 150 is disposed at the position of the target pin 145 indicated by the coordinate data by adjusting the position of the target support member 140 with respect to the support frame 85 to the position of the through hole 641 of the middle presser foot 64 fitted in the upper portion of the target stop 145. The operator can perform the fixing step while determining whether the support member 150 is disposed at the position of the target pin 145 indicated by the coordinate data, based on whether or not the upper end 146 of the off log 145 is partially fitted into the through hole 641 of the middle presser foot 64. Since the through hole 641 of the middle presser foot 64 is not excessively large with respect to the pin 145, there is no room for shifting the position of the pin 145 in a state where the pin 145 is fitted into the through hole 641. Accordingly, since the through hole 641 of the middle presser foot 64 holds the pin 145 in the state in which the middle presser foot 64 is lowered, even when the support members 140 and 150 are fixed to the support frame 85, the accurate position can be maintained without shifting the position of the pin 145, and the operability is improved.

The alignment method of the jig 8 includes a sequence acquisition step (S21), a completion instruction acquisition step (S29), and a movement step (S30). In the sequence acquisition process, the CPU16 acquires the sequence in which the log-off 145 is read out from the plurality of pins 145 in the instruction process. In the completion instruction acquisition step, after the fixing step, the CPU16 acquires, from the operator, an instruction indicating that the instruction step for the attention pin 145 in the next order is possible (S29). In the moving step, when the completion instruction is acquired in the completion instruction acquiring step, the CPU16 moves the middle presser foot 64 of the sewing apparatus 1 to the raised position (S30). After the moving process, the CPU16 performs an instruction process for the attention pin 145 in the next order. Therefore, the middle presser foot 64 continues to indicate the accurate pin position without moving until the operator completes the fixing work of the support members 140, 150 with respect to the cancellation 145, and therefore, the position of the pin 145 can be arranged with higher accuracy.

The CPU16 includes a sequence editing step (S8, S14) of editing sequence. The alignment method of the jig 8 can improve the convenience of the operator compared to the case where the order cannot be edited.

The present invention can be variously modified in addition to the above-described embodiments. The control device 100 is a desk-top PC terminal, but may be a tablet terminal, a smart phone, or the like, or may be a dedicated terminal of the sewing device 1. In the above embodiment, the control device 100 is described as a part of the control device of the sewing device of the present invention, but the control unit 15 of the sewing device 1 may also function as the control device of the present invention. The sewing device 1 may be any door-type sewing device, and for example, the clamping portions 881 and 891 of the mounting portions 88 and 89 may be appropriately changed. The plurality of rollers 39 of the receiving units 42A of the mounting tables 90F, 90R may be resin plates having good sliding surfaces. The shape of the middle presser foot 64 may be changed as appropriate, and the diameter D2 of the through hole 641 may be 1.1 times or more the maximum diameter D3 of the pin 145. The sewing device 1 may use a jig attached to the lower end of the needle bar 63 instead of the middle presser foot 64 to indicate the position of the lock stop 145. The jig may be, for example, a cylindrical shape having holes similar to those of the intermediate presser 64.

The shape, size, structure, etc. of the support frame 85 and the support members 140, 150 may be changed as appropriate. The number, shape, arrangement, etc. of the pins 111 to 120 on the left and right sides of the support frame 85 may be changed as appropriate. The support frame 85 may not include the pins 111 to 120 and the handle 85A. The type of the support members 140, 150 may be one or more. The shape, arrangement, size, etc. of the pins 145 of the support members 140, 150 may also be changed as appropriate. The pin 145 may have a polygonal columnar shape, and the upper end 146 may have a polygonal tapered shape or a conical shape. The upper end 146 may not be tapered. The fixing method of the support members 140 and 150 to the support frame 85 may be appropriately changed. The fixing method of the fixing portion 151 and the fixing portion 152 of the support member 150 may be appropriately changed. For example, in the alignment method of the jig 8, even if the through hole in the right portion of the fixing portion 151 is not formed as a long hole, the fixing portion 151 and the supporting portion 152 can be assembled with a margin in the diameter of the bolt as the fixing member 125, 126 from the through Kong Xiaolai of the fixing portion 151, so that the fixing portion 151 and the supporting portion 152 are assembled at an angle similar to the above embodiment. The fixing method of the fixing portion 151 and the supporting portion 152 may be a fastening method other than a bolt and a nut. For example, the fixing method of the fixing portion 151 and the supporting portion 152 may be a fastening method by bolts and screw holes.

The program for processing by the sewing apparatus 1 or the control apparatus 100 may be stored in the storage device 19 of the sewing apparatus 1 or the storage device 104 of the control apparatus 100 before the CPU16 or 101 executes the program. Therefore, the program acquisition method, the acquisition path, and the program storage device may be changed as appropriate. The programs executed by the CPU16 or 101 may be received from another device via a cable or wireless communication, and stored in a storage device such as a flash memory. Other devices include, for example, a PC and a server connected via a network.

Part or all of the processing performed by the sewing apparatus 1 or the control apparatus 100 may be performed by an electronic device (for example, ASIC) different from the CPU16 or 101. The processing performed by the sewing apparatus 1 or the control apparatus 100 may be distributed processing by a plurality of electronic devices (e.g., a plurality of CPUs). The steps of the processing performed by the sewing apparatus 1 or the control apparatus 100 may be changed in order, omitted, or added as necessary. The scope of the invention also includes the following: an Operating System (OS) or the like running on the sewing apparatus 1 or the control apparatus 100 performs a part or all of the respective processes in accordance with instructions of the CPUs 16 and 101. For example, the following modifications may be appropriately applied to the above-described embodiment.

The sewing device 1 may not execute the switching grip processing. In the sewing device 1, a projection device for a laser pointer for irradiating the needle falling position may be attached to the lower end of the needle bar 63, and in the instruction step, the position of the attention pin 145 may be instructed based on the projection position of the projection device. In the fixing step, the operator may not move the middle presser 64 of the sewing apparatus 1 from the raised position to the lowered position. The sewing device 1 may be configured to move the middle presser 64 to the raised position when an instruction to raise the middle presser 64 is issued from the operator after the middle presser 64 of the sewing device 1 is moved from the raised position to the lowered position. Instead of manually moving the middle presser 64 of the sewing apparatus 1 from the raised position to the lowered position, the middle presser motor 68 may be driven by the sewing apparatus 1 to lower the middle presser 64. The sequential processing of editing the hole data E2 may also be omitted as appropriate.

Claims (7)

1. A method for aligning a jig, the jig comprising:

a plurality of support members having pins protruding upward; and

a support frame for fixing the plurality of support members in a position adjustable manner,

The plurality of pins are respectively penetrated through a plurality of holes arranged on the sewed object, so that the sewed object is aligned relative to the supporting frame,

the alignment method of the jig is characterized by comprising the following steps:

a taking-in step in which a control device of the sewing device takes in the coordinate data of a plurality of pins;

an instruction step of causing the controller to relatively move the head of the sewing device and the support frame to a position indicated by the coordinate data of the pin of interest among the plurality of pins, and instructing the position of the pin of interest indicated by the coordinate data based on the position of the support frame relative to the head; and

and a fixing step in which an operator aligns the support member of interest corresponding to the pin of interest among the plurality of support members with the position of the pin of interest, adjusts the position of the support member of interest with respect to the support frame, and fixes the support member of interest to the support frame.

2. The alignment method of a fixture according to claim 1, wherein,

in the capturing step, the control device captures the coordinate data from the sewing data of the stitch formed by the object to be sewn held by the jig after alignment.

3. The method for aligning a jig according to claim 1 or 2, wherein,

in the instructing step, the controller instructs a position where the target pin is in contact with the presser foot when the presser foot provided on the head of the sewing device is lowered from a raised position to a position between the raised position and the lowered position or the lowered position after relatively moving the head and the support frame to the position indicated by the coordinate data of the target pin, as the position of the target pin indicated by the coordinate data.

4. The method for aligning a fixture according to claim 3, wherein,

the upper ends of the pins are tapered with a diameter smaller toward the upper side,

the presser foot is cylindrical with a hole smaller than 1.1 times the maximum diameter of the plurality of pins and at least a size capable of inserting a part of the upper end of the pin concerned,

in the fixing step, the position of the target support member with respect to the support frame is adjusted so that at least a part of the upper end portion of the target pin is fitted into the hole of the presser foot when the presser foot of the sewing apparatus is lowered from the raised position, and the target support member is fixed to the support frame.

5. The method for aligning a fixture according to claim 3 or 4, wherein,

the alignment method of the jig further comprises the following steps:

a sequence acquisition step in which the control device acquires a sequence in which the pins of interest are read out from the plurality of pins in the instruction step;

a completion instruction acquisition step in which, after the fixing step, the control device acquires a completion instruction from the operator, the completion instruction indicating that the instruction step for the pin of interest whose order is next is possible; and

a moving step of moving the presser foot of the sewing apparatus to the raised position when the completion instruction is acquired in the completion instruction acquisition step,

the control device performs the instruction process for the pin of interest whose order is next after the moving process.

6. The method of aligning a fixture according to claim 5, wherein,

the alignment method of the jig further includes a sequence editing step in which the control device edits the sequence.

7. A positioning procedure of a jig, the jig comprises:

A plurality of support members having pins protruding upward; and

a support frame for fixing the plurality of support members in a position adjustable manner,

the plurality of pins are respectively penetrated through a plurality of holes arranged on the sewed object, so that the sewed object is aligned relative to the supporting frame,

the alignment program of the jig is characterized by comprising instructions for causing a control device for controlling a sewing device for holding the support frame to execute the following steps:

a capturing step of capturing coordinate data of a plurality of pins; and

and a step of relatively moving the head of the sewing device and the support frame to a position indicated by the coordinate data of the pin of interest among the plurality of pins, and indicating the position of the pin of interest indicated by the coordinate data based on the position of the support frame relative to the head.

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