Classifications

• • D—TEXTILES; PAPER
  • D05—SEWING; EMBROIDERING; TUFTING
  • D05C—EMBROIDERING; TUFTING
  • D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
  • D05C11/16—Arrangements for repeating thread patterns or for changing threads
• • D—TEXTILES; PAPER
  • D05—SEWING; EMBROIDERING; TUFTING
  • D05C—EMBROIDERING; TUFTING
  • D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
  • D05C11/02—Machine needles
  • D05C11/06—Needle-driving or control mechanisms

Definitions

• the present invention relates to an embroidery sewing machine for a tubular embroidery object such as a sweater or a body of a T-shirt.
• Patent Document 1 Fairness 1 11751
• the combination embroidery sewing machine With the combination embroidery sewing machine, combination embroidery can be performed with a single embroidery sewing machine.
• the combination embroidery sewing machine is powerless with a sewing machine capable of embroidery on a cylindrical embroidery object. This is because, as described above, in order to embroidery on a cylindrical embroidery object, it is necessary to position the shuttle bed inside the cylindrical embroidery object, and to embroidery with two types of sewing heads. The two hook beds corresponding to both sewing heads must be located inside the cylindrical workpiece. For this reason, if there are limited embroidery objects that can be embroidered, even an embroidery object that can be embroidered by force cannot secure an embroidery range, with sufficient margin for the part that hangs downward. It will be.
• the present invention has been made in view of the above points, and will provide an embroidery sewing machine capable of smoothly performing combined embroidery on a cylindrical embroidery object using a plurality of types of sewing heads without any trouble. It is what.
• An embroidery machine is an embroidery machine intended for a cylindrical embroidery object, and is suitable for an embroidery range of one embroidery frame in which the cylindrical embroidery object is set.
• each of the sewing heads and the color changing mechanism are arranged so as to be movable in the horizontal direction with respect to the hook bed, and these are integrally formed in the horizontal direction.
• a lateral movement mechanism for positioning any one of the respective sewing heads in a position corresponding to the shuttle bed.
• FIG. 1 is a front view of an embroidery sewing machine according to an embodiment of the present invention.
• FIG. 2 is a plan view showing the embroidery sewing machine with the sewing machine frame and the sewing machine head omitted.
• FIG. 3 is a side sectional view taken along the line I-I in FIG.
• FIG. 4 (a) is an enlarged front view showing the color changing mechanism and the lateral movement mechanism of the embroidery sewing machine, and (b) is a plan view thereof.
• FIG. 5 is an enlarged side view showing one multi-needle sewing head.
• FIG. 6 is an enlarged side view showing one single-needle sewing head.
• FIG. 7 (a) is an enlarged front view showing a specific configuration example of the color changing mechanism, and (b) is a side sectional view thereof.
• FIG. 8 (a) is a front view showing a specific configuration example of the lateral movement mechanism further enlarged, and (b) is a side sectional view thereof.
• FIG. 9 is an enlarged front view (a) and a side sectional view (b) showing a specific configuration example of a transmission mechanism for the rotational motion of the spindle motor with respect to the sewing machine spindle disposed on the left side of the front of the sewing machine.
• FIG. 10 is a front view (a) and a plan view (b) showing an example of a state in which the multi-needle sewing machine head is positioned corresponding to the shuttle bed.
• FIG. 11 A front view (a) and a plan view (b) showing an example of the state in which the sewing needle (color thread) is selected and moved by the color change mechanism in FIG.
• FIG. 1 is a front view of an embroidery sewing machine according to an embodiment of the present invention
• FIG. 2 is a plan view in which the sewing machine frame 1 and sewing heads 3 and 4 are omitted
• FIG. It is side surface sectional drawing according to a wire cut surface
• 1 is a sewing machine frame
• 2 is a table.
• the table 2 has a front table 2a that can be raised and lowered.
• heads heads
• One sewing head 3 is a multiple stitch (for example, 9) sewing, multi-color embroidery main sewing with needles !, a multi-needle sewing head, and the other sewing head 4 is used for sewing and attaching tapes.
• head pair head group
• one hook bed 5 having one hook 6 is arranged below each head pair (head group).
• a base sash frame 7 is provided on Table 2. Accordingly, the base sash frame 7 is moved two-dimensionally in the X and Y directions by the frame driving units 8 and 9.
• a plurality of embroidery frames 10 are supported on the base sash frame 7 by support arms 11 corresponding to the hook beds 5.
• Each embroidery frame 10 can be set with a cylindrical embroidery object such as the body of a shirt.
• FIG. 4 (a) is an enlarged front view showing portions of the color changing mechanism 20 and the lateral movement mechanism 30, and FIG. 4 (b) is a plan view thereof.
• the front surface of the sewing machine frame 1 is provided with two upper and lower guide rails 13 configured by connecting a plurality of rails 13a.
• the machine heads 3 and 4 of each head pair are fixed to a mounting plate 12, and the mounting plate 12 is fixed to a slider 14 that is movable on two guide rails 13.
• FIG. 5 is an enlarged side view showing one multi-needle sewing head 3
• FIG. 6 is an enlarged side view showing one single-needle sewing head 4.
• the multi-needle sewing machine head 3 includes an arm 15 and a needle bar case 16 slidably supported by the arm 15, and a plurality of needle bar cases 16 (for example, 9 Book) and needle 17 are provided.
• the needle bar case 16 is slid laterally by the color changing mechanism 20 so that any one sewing needle 17 is selectively positioned at a predetermined operating position (selected position).
• Each of the sewing heads 3 and 4 is provided with a sewing machine shaft 18 extending therethrough.
• the sewing needle 17 positioned at the operating position (selected position) is moved up and down by the rotation of the sewing machine spindle 18.
• the sewing needle 19 is moved up and down.
• a color change mechanism 20 is provided on the front surface of the sewing machine frame 1 to position an arbitrary sewing needle 17 from a plurality (9) of sewing needles 17 of the sewing head 3 at a selected position.
• the color changing mechanism 20 is also fixed to a slider 14 that is movably provided on the guide rail 13 via a mounting plate 21. As a result, the color change mechanism 20 is slidable with respect to the sewing machine frame 1.
• FIG. 7 shows a specific configuration example of the color change mechanism 20 in a further enlarged manner, where (a) is a front view and (b) is a side sectional view.
• the color changing mechanism 20 includes a frame member (base) 22 having a U-shaped cross section fixed to a mounting plate 21, a ball screw 23 rotatably supported on the frame member 22, and a ball screw 23. Attached to the nut member 24 screwed into the guide shaft 25 and slid along the guide shaft 25.
• the mover 26 is provided.
• a drive motor 27 is fixed to the frame member 22, and the motor shaft of the drive motor 27 is connected to one end of the ball screw 23 to form a drive unit.
• the drive motor 27 is driven, the ball screw 23 is rotated, and the mover 26 is slid together with the nut member 24.
• One end of a rod 28 connected to the needle bar case 16 of the sewing machine head 3 of each head pair is fixed to the mover 26 to constitute a slide drive member.
• the mover 26 is slid by driving the drive motor 27, the needle bar case 16 is slid left and right through the rod 28.
• the sewing machine head 4 is provided with an escape hole 29 that allows the rod 28 to pass therethrough.
• FIG. 8 is a further enlarged view of a specific configuration example of the lateral movement mechanism 30, wherein (a) is a front view and (b) is a side sectional view.
• the lateral movement mechanism 30 has the same configuration as the color change mechanism 20, and includes a frame member 31 fixed to the sewing machine frame 1, a ball screw 32 rotatably supported on the frame member 31, and a ball screw 32.
• a mover 35 is attached to the screwed nut member 33 and is slid along the guide shaft 34.
• a drive motor 36 is fixed to the frame member 31, and the motor shaft of the drive motor 36 is connected to one end of the ball screw 32.
• Each mounting plate 12 to which the head pair is fixed and the mounting plate 21 to which the color changing mechanism 20 is fixed are connected by a connecting rod 37, and the mounting plate 21 is connected to the moving element 35 of the lateral movement mechanism 30 by the connecting rod 37. It is connected with.
• the drive motor 36 of the lateral movement mechanism 30 is driven to slide the slider 35, each of the sewing heads 3, 4 and the color change mechanism 20 are slid laterally (left or right). The Rukoto. Then, one of the sewing heads 3 and 4 is positioned corresponding to the shuttle bed 5, and embroidery sewing is performed by the sewing head 3 or 4 positioned corresponding to the shuttle bed 5.
• FIG. 4 shows a state in which the single needle sewing head 4 is positioned corresponding to the shuttle bed 5.
• FIG. 10 or FIG. 11 shows a state example in which the multi-needle sewing machine head 3 is positioned corresponding to the shuttle bed 5.
• FIG. 9 is an enlarged view of a specific configuration example of a transmission mechanism for the rotational motion of the spindle motor 43 with respect to the sewing machine spindle 18 arranged on the left side of the front of the sewing machine.
• a spline shaft 38 is connected to the left end portion of the sewing machine main shaft 18.
• the spline shaft 38 is provided with a spline bearing 39 that can slide along the axis of the spline shaft 38 and rotates together with the spline shaft 38.
• a spindle pulley 40 and a driven pulley 41 are fixed to the spline bearing 39.
• the spindle pulley 40 is connected to a spindle motor 43 fixed to the back surface of the sewing machine frame 1 via a timing belt 42.
• the driven pulley 41 is connected to the shuttle shaft pulley 46 via the intermediate pulley 45 by the timing belt 44.
• the hook shaft pulley 46 is fixed to the end of the hook shaft 47.
• the hook shafts 47 are provided through the hook beds 5, and the hooks 6 of the hook beds 5 are rotated by the rotation of the hook shafts 47.
• the main shaft motor 43 is driven to rotate the sewing machine main shaft 18 and the shuttle shaft 47, and the sewing needle 17 or 19 is moved up and down and the shuttle 6 is rotated.
• the spline shaft 38 and the spline bearing 39 allow the main spindle 18 to slide, the drive of the main spindle motor 43 is transmitted.
• FIG. 9 the position of the spline shaft 38 when the sewing machine head 4 is positioned corresponding to the shuttle bed 5 (the state shown in FIG. 4) is indicated by a solid line, and when the sewing machine head 3 is positioned corresponding to the shuttle bed 5
• the position of the spline shaft 38 in the state shown in FIG. 10 is indicated by an imaginary line.
• a cylindrical embroidery object is set on the embroidery frame 10 and attached to the base sash frame 7.
• decorative embroidery sewing such as tape sewing or attachment to the object to be embroidered
• the spindle motor 43 is driven to move the sewing needle 19 up and down and rotate the shuttle 6 to move the base sash frame 7 based on the embroidery data.
• decorative embroidery sewing such as tape sewing and attachment by the single-needle sewing machine head 4 is performed.
• the multi-needle sewing machine head 3 that is not positioned corresponding to the shuttle bed 5 stops the vertical movement of the sewing needle 17 by the known jump control.
• the multi-needle sewing machine head 3 in each head pair is positioned corresponding to the shuttle bed 5 by the lateral movement mechanism 30.
• the color changing mechanism 20 is driven to selectively position the sewing needle 17 of the desired color thread at a predetermined operation position (selection position).
• FIG. 11 shows that the sewing needle 17 of the desired color thread is moved by driving the color changing mechanism 20. The state selected to the predetermined operation position (selection position) is illustrated. And the spindle motor
• the lateral movement mechanism 30 is driven to selectively position one of the two types of sewing heads 3 and 4 with respect to the single shuttle bed 5 so as to be positioned inside the embroidery object.
• the hook bed 5 is single, the embroidery sewing operation can be selectively performed by the two types of sewing heads 3 and 4. Therefore, a combination embroidery sewing machine for a cylindrical embroidery object can be smoothly performed by using a single embroidery sewing machine without any trouble.
• the color changing mechanism 20 is configured to slide integrally with the sewing heads 3 and 4, the color changing operation in the multi-needle sewing head 3 can be easily performed with a normal structure and control. .
• the color change mechanism 20 is configured not to slide, a structure that allows the slide movement of the sewing head 3 relative to the color change mechanism 20 and a control for calculating the slide movement amount of the sewing head 3 are required. However, according to the present invention, such trouble is easy.
• the force in which the slide drive structure of the color change mechanism 20 and the slide drive structure of the lateral movement mechanism 30 are a ball screw type rotation linear conversion structure is not limited to this.
• Other appropriate configurations such as a structure and a linear motion structure using a linear motor may be used.
• the two types of sewing heads forming one head pair are not limited to the combination of a multi-needle sewing head and a single-needle sewing head, and both of them may be a multi-needle sewing head. In this way, if two multi-needle sewing heads are used, the number of thread colors that can be sewn can be increased.
• one color change mechanism 20 can be shared for two types of multi-needle sewing heads that form one head pair.
• one head group may have three kinds of sewing head forces.
• the present invention is not limited to a multi-head type sewing machine, and can be applied to a sewing machine having only one head pair (one head group) having two or more kinds of sewing head forces.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Sewing Machines And Sewing (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=36227948

Family Applications (1)

Country Status (6)

Cited By (1)

Families Citing this family (17)

Citations (7)

Family Cites Families (6)

• 2004
  • 2004-10-29 JP JP2004315990A patent/JP2006122436A/ja not_active Withdrawn
• 2005
  • 2005-10-28 WO PCT/JP2005/019916 patent/WO2006046708A1/ja active Application Filing
  • 2005-10-28 US US11/718,170 patent/US20090173261A1/en not_active Abandoned
  • 2005-10-28 KR KR1020067019981A patent/KR100804110B1/ko not_active IP Right Cessation
  • 2005-10-28 EP EP05805204A patent/EP1806445A1/en not_active Withdrawn
  • 2005-10-28 CN CN2005800344361A patent/CN101040078B/zh not_active Expired - Fee Related

Patent Citations (7)

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