JP2006052496A - Fabric frame device of multi-head embroidery machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a multi-head embroidery machine in which a sewing frame can be forward or backward moved to alternately and efficiently sew a work fabric attached to several rows of front and rear embroidery frames. <P>SOLUTION: The sewing frame 5 is forward or rearward or laterally movably disposed on a table 3. Six support frames 9 are laterally attached to the inside of the sewing frame 5. Two front and rear embroidery flames 6 are laterally alternately supported on each support frame 9 in an inboard state. A positioning pin and a magnet are disposed on each of attaching members 20, 21 to detachably attach the embroidery frames 6 to the support frame 9. A handle 18 is formed at the front edge of each of the embroidery frames 6 on the front row and the rear row in such an upward and forward bent state as hooked with a finger from the lower side. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cloth frame device for a multi-head embroidery sewing machine in which a plurality of embroidery frames are arranged inside a sewing frame.

  2. Description of the Related Art Conventionally, there is known a cloth frame device in which a sewing frame is provided on a table of a multi-head embroidery sewing machine so as to be movable in the front-rear and left-right directions, and the same number of embroidery frames as the head are attached to the inner side of the sewing frame. For example, Patent Documents 1 and 2 describe an apparatus in which an embroidery frame is attached to a sewing frame using a magnet so that the embroidery frame can be easily attached and detached. In Patent Document 3, a vertically long mounting plate is bridged between the front frame and the rear frame of the sewing frame so that three types of embroidery frames can be used in one sewing frame, and large, medium, and small sizes are attached to the mounting plate. An apparatus is described in which mounting holes are formed in the front and rear, and an embroidery frame of an appropriate size is selectively fitted into the corresponding mounting holes.

Conventionally, a technique for alternately sewing work cloths attached to a pair of left and right embroidery frames is known. For example, in Patent Document 4, a plurality of pairs of left and right embroidery frames are attached in the left-right direction of a sewing frame, and the other embroidery frame is replaced while sewing a work cloth stretched on either the left or right embroidery frame. An apparatus for alternately sewing socks and other uniforms by moving the sewing frame in the left-right direction is described.
Japanese Utility Model Publication No. 4-106392 JP 2001-316969 A Japanese Unexamined Patent Publication No. Hei 8-188956 Japanese Patent No. 3424862

  However, according to the conventional devices of Patent Documents 1 to 3, since the embroidery frame can be attached only to the left and right rows inside the sewing frame (the same applies to Patent Document 3), the sewing machine must be stopped every time sewing is finished. It was necessary to replace the frame. For this reason, there has been a problem that the operating rate of the multi-head embroidery sewing machine is lowered and the productivity of the embroidery processed product is lowered. In addition, according to the conventional device of Patent Document 4, the left and right work cloths can be sewn alternately without stopping the sewing machine. However, since the sewing frame is moved in the left-right direction and alternate sewing is performed, the width of the embroidery frame is limited to 1/2 or less of the interval between the sewing heads, and the type of work cloth is limited to narrow sewing products such as socks. There was a problem.

  An object of the present invention is to solve the above-mentioned problems, and to provide a cloth frame device capable of sewing various work cloths efficiently by enabling alternate sewing in the front-rear direction in a multi-head embroidery sewing machine.

  In order to solve the above-described problems, a cloth frame device for a multi-head embroidery sewing machine according to the present invention includes a sewing frame provided on a table so as to be movable back and forth and right and left, a plurality of left and right inside a sewing frame, and a plurality of front and back. An embroidery frame arranged in a line, an attachment member for detachably attaching the embroidery frame to the sewing frame, and an operation member for removing the embroidery frame from the sewing frame are provided.

  Here, the sewing frame is not limited to a specific shape, and for example, a frame having a shape in which a plurality of embroidery frames can be arranged in at least two rows on the left and right, such as a square, a rectangle, and an oval can be used. A wide range of upholstery frames can be used for the embroidery frame, from a large frame with a width equal to the interval between the heads of a multi-head embroidery machine to a small frame with a smaller width. Various structural frames with members can be used. Examples of the processed cloth include socks, hats, handkerchiefs, towels, bags, baby clothes, and the like.

  The number of embroidery frames in the left-right direction is preferably the same as the number of heads, but the number of rows in the front-rear direction is not particularly limited, and may be two rows, three rows, four rows or more. As the head, a slide type head that divides a plurality of needle bars by a linear motion in the horizontal direction or a rotary type head that divides a plurality of needle bars by a rotational movement in a horizontal plane can be used. In particular, the rotary head is preferable in that the head spacing can be wider than that of the slide head with the same center-to-center distance in the alternate sewing in the front-rear direction.

  As the attachment member, a member that can hold the embroidery frame at an accurate position of the sewing frame and can be attached and detached with one touch is preferable. Specifically, an attachment member provided with a positioning part for positioning the embroidery frame on the sewing frame and a magnet for attracting and holding the embroidery frame on the sewing frame can be exemplified. The positioning portion and the magnet may be provided on both the embroidery frame and the sewing frame, or may be provided on either one. Further, the operation member may be bent upward from a part of the peripheral edge of the embroidery frame so that the operator can easily detach the embroidery frame from the front side or the rear side of the sewing machine table. desirable.

As a structure for attaching the embroidery frame to the sewing frame, the following configuration can be preferably employed.
(1) A support frame that supports the embroidery frame at both ends is provided on the sewing frame.
(2) The front and rear embroidery frames are alternately supported by the support frame on the left and right sides, and the operation members project forward from the front edges of the front and rear embroidery frames.
(3) The front and rear embroidery frames are supported at the same position on the left and right by the support frame, and the operation member is projected forward on the front edge of the front row embroidery frame, and is projected rearward on the rear edge of the rear row embroidery frame.
(4) The sewing frame is provided with a front frame that cantilever-supports the front row of embroidery frames and a rear frame that cantilever-supports the back row of embroidery frames, and an operation member projects forward from the front edge of the front row of embroidery frames. The rear row of embroidery frames protrudes rearward.

  According to the cloth frame device of the present invention, since the front and back rows of the embroidery frames are arranged inside the sewing frame, the sewing frame is moved in the front-rear direction after sewing one row of work cloth without stopping the sewing machine. Then, the work cloth in the next row can be sewn. In addition, if the mounting member has a positioning part for positioning the embroidery frame on the sewing frame and a magnet for attracting and holding the embroidery frame on the sewing frame, the embroidery frame can be attached to and detached from the sewing frame with a single touch. Therefore, alternate sewing in the front-rear direction can be performed flexibly. Therefore, the operating rate of the multi-head embroidery sewing machine can be improved and the productivity of embroidery processed products can be increased. Further, according to the alternate sewing in the front-rear direction, since the width of the embroidery frame is allowed up to the distance between the heads, there is an advantage that various sewing products can be efficiently processed using a large and small embroidery frame.

  As shown in FIG. 1, the cloth frame device 4 includes a sewing frame 5 on a table 3 of a multi-head embroidery sewing machine 1 so as to be movable in the front-rear and left-right directions. Inside the sewing frame 5, the embroidery frames 6 are arranged in a plurality of rows on the front and rear sides via a plurality of left and right support frames 9, and are detachably attached by attachment members 20 and 21. The attachment members 20 and 21 are provided with a positioning portion for positioning the embroidery frame 6 on the sewing frame 5 and a magnet for attracting and holding the embroidery frame 6 to the sewing frame 5. An operation member 18 for removing the embroidery frame 6 from the sewing frame 5 is bent upward from a part of the periphery of the embroidery frame so that a finger can be hung from below.

  First, a first embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, six rotary heads 2 are arranged side by side on a machine frame (not shown) of the multi-head embroidery sewing machine 1, and a table 3 is installed below the head 2. ing. A sewing frame 5 of the cloth frame device 4 is provided on the upper side of the table 3 so as to be movable in the front-rear and left-right directions, and two motors (not shown) for driving the sewing frame 5 in both directions are installed on the lower side of the table 3. Has been. The sewing frame 5 is formed in a horizontally long rectangle from a front frame 5a, a rear frame 5b, a left frame 5c, and a right frame 5d, and six left and right embroidery frames 6 are arranged in two rows in the front and rear.

  An intermediate frame 8 is installed between the left and right side frames 5 c and 5 d of the sewing frame 5, and six left and right support frames 9 are arranged in a region in front of the intermediate frame 8. The support frame 9 is formed in a vertically long rectangle having a width slightly shorter than the center distance of the head 2, and both front and rear ends thereof are attached to the front frame 5 a and the intermediate frame 8 with bolts 11 via brackets 10. Then, two embroidery frames 6 are arranged in the front and back inside each support frame 9 and are supported at both ends in a staggered position. In the multi-head embroidery sewing machine 1 of this embodiment, the center-to-core distance of the head 2 is about 300 mm, and a hat part frame having a width of about 200 mm is used for the embroidery frame 6.

  As shown in FIGS. 3 and 4, the embroidery frame 6 includes a window hole 13 that determines the embroidery range, a wire 14 that can be raised and lowered that holds the front cloth of the cap, and a hook 15 that hooks the free end of the wire 14. I have. A front mounting piece 16 projects forward from the front edge of the embroidery frame 6 and a rear mounting piece 17 projects rearward from the rear edge of the embroidery frame 6. A handle 18 that functions as an operation member for removing the embroidery frame 6 from the support frame 9 is bent upward on the front mounting piece 16 so that a finger can be hooked from below. The front and rear embroidery frames 6 are both supported by the front beam 9a, the middle beam 9b, and the rear beam 9c of the support frame 9 in the same direction in which the handle 18 is pushed forward.

  A pair of front and rear mounting members 20 and 21 for detachably mounting the front embroidery frame 6 are provided at positions on the left side of the front rail 9a and the middle rail 9b. A pair of front and rear mounting members 22 and 23 for detachably mounting the rear embroidery frame 6 are provided at positions on the right side of the middle rail 9b and the rear rail 9c. The front mounting members 20, 22 are provided with positioning pins 24 that fit into the holes 16 a of the front mounting pieces 16 of the embroidery frame 6 and magnets 25 that attract and hold the front mounting pieces 16. The rear mounting members 21 and 23 are provided with a positioning pin 26 into which the notch 17a of the rear mounting piece 17 of the embroidery frame 6 is fitted, and a leaf spring 27 that presses the rear mounting piece 17.

  In the cloth frame device 4 configured as described above, when an embroidery pattern such as a mark is processed on a work cloth (front cloth of a hat), two embroidery frames 6 to which the work cloth is attached are attached to the support frame 9 two pieces in total. The embroidery frames 6 are arranged in two rows in the front and rear inside the sewing frame 5. Then, the sewing frame 5 is moved back and forth, left and right, and for example, as shown in FIG. 1, the back row embroidery frame 6 is positioned on the head 2, the multi-head embroidery sewing machine 1 is started, and the 6 back row work cloths are sewn. To do. When the rear row sewing is completed, the sewing frame 5 is moved to the right rear while the sewing machine 1 is in operation, and the front row embroidery frame 6 is positioned on the head 2 as shown in FIG. Continue sewing the fabric.

  While sewing the work cloth in the front row, the operator extends his hand from the front side of the table 3, grasps the handle 18, removes the sewn embroidery frame 6 in the rear row from the support frame 9, and passes between the adjacent heads 2. After taking it out of the sewing frame 5 and replacing the work cloth, it is attached to the support frame 9 again. When the sewing of the front row is completed, the sewing frame 5 is moved to the left front, and the embroidery frame 6 of the rear row is positioned on the head 2 as shown in FIG. Then, the operator replaces the sewed embroidery frames 6 in the front row arranged at hand, and thereafter sews the work cloths in the front row and the rear row alternately. The embroidery frame 6 is basically exchanged while the sewing machine 1 is stopped. However, even if the embroidery frame 6 is handled during the sewing operation, the embroidery frame 6 can be attached and detached at a single touch, so that the exchange itself is possible. .

Therefore, according to the cloth frame device 4 of the first embodiment, the following effects can be obtained.
(A) Since the embroidery frame 6 is arranged in two front and rear rows inside the sewing frame 5, after sewing the work cloth in the front row, the sewing frame 5 is moved without stopping the sewing machine 1 and the work cloth in the rear row is placed. You can continue sewing. In this way, since the sewing frame 5 is moved in the front-rear direction and alternate sewing is performed, the width of the embroidery frame 6 can be increased to the distance between the heads 2 at the maximum. Various sewing products can be processed efficiently.
(B) Since the positioning pins 24 and 26 are provided on the attachment members 20 to 23, the embroidery frame 6 can be accurately attached to the support frame 9.
(C) Since the handle 18 is bent upward from a part of the peripheral edge of the embroidery frame 6 so that a finger can be applied from below, the embroidery frame 6 can be easily attached to and detached from the support frame 9 at the time of replacement. In addition, since the handle 18 protrudes forward from the front edge of the front and rear embroidery frames 6, both the front and rear embroidery frames 6 can be easily exchanged from the front side of the table.

(D) Since the magnets 25 are provided on the attachment members 20 and 22, the embroidery frame 6 can be attached to and detached from the support frame 9 with one touch. If it can be detached and attached with one touch in this way, the alternate sewing in the front-rear direction can be carried out automatically.
(E) Since the front and rear embroidery frames 6 are alternately supported by the support frame 9 on the left and right, the rear row embroidery frames 6 can be easily exchanged between the adjacent heads 2.

(F) Since the embroidery frame 6 is supported on both sides by the support frame 9, the embroidery frame 6 can be prevented from drooping and the embroidery accuracy can be improved.
(G) Since a rotary head is used as the head 2, the distance between the adjacent heads 2 can be increased as compared with the slide type head, and the embroidery frame 6 in the rear row can be smoothly exchanged between the heads 2.

  Next, a second embodiment of the present invention will be described with reference to FIGS. This cloth frame device 31 is different from the first embodiment in the mounting structure of the embroidery frame 6 to the support frame 9. That is, in this cloth frame device 31, the attachment members 20, 21 (see FIG. 5) and the attachment members 22, 23 (see FIG. 6) are provided on the center line in the left-right direction of the support frame 9, and the front and back embroidery frames 6 are provided. Both ends are supported by the support frame 9 at the same left and right positions. The handle 18 protrudes forward on the front edge of the front row of embroidery frames 6 and protrudes rearward on the rear edge of the rear row of embroidery frames 6.

  In the alternate sewing, as shown in FIG. 5, the operator replaces the stitched embroidery frame 6 in the front row from the front side of the table 3. Further, as shown in FIG. 6, the operator replaces the sewn embroidery frame 6 in the rear row from the rear side of the table 3. Therefore, according to the cloth frame device 31 of the second embodiment, there is an advantage that the rear row embroidery frames 6 can be easily replaced from the rear side of the table 3 without passing between the heads 2. Other configurations and operational effects are the same as those of the first embodiment.

  7 and 8 show Embodiment 3 of the present invention. In the cloth frame device 41, an annular frame composed of an inner frame 42a and an outer frame 42b is used as the embroidery frame 42. The front row embroidery frame 42 is cantilevered by the front frame 5 a of the sewing frame 5, and the rear row embroidery frame 42 is cantilevered by the rear frame 5 b of the sewing frame 5. Mounting members 43 and 44 each having a pair of positioning pins 24 and a pair of magnets 25 are provided on the front frame 5a and the rear frame 5b. The handle 18 projects forward from the front edge of the front row embroidery frame 42 and projects rearward from the rear edge of the rear row embroidery frame 42.

  When embroidering a flat sewing product such as a handkerchief or towel, alternate sewing in the same procedure as in the second embodiment can be performed. That is, as shown in FIG. 7, the operator replaces the stitched embroidery frame 42 in the front row from the front side of the table 3. Further, as shown in FIG. 8, the sewn embroidery frame 42 in the rear row is replaced from the rear side of the table 3. Therefore, the embroidery frame 42 that has been sewn can be easily replaced from the front and the back of the table 3 also by the cloth frame device 41 of the third embodiment.

  FIG. 9 shows a fourth embodiment of the present invention. In the cloth frame device 51, two support frames 52 are erected between the left and right side frames 5 c and 5 d of the sewing frame 5. Six embroidery frames (annular frames) 42 are arranged on the inner side of the sewing frame 5 in the front and rear, and are supported by the front frame 5a, the rear frame 5b, and the support frame 52 at both left and right positions. Yes. The handle 18 projects forward from the front edge of the front row and middle row embroidery frames 42, and projects rearward from the rear edge of the rear row embroidery frames 42.

  In the alternate sewing, the operator replaces the sewed embroidery frame 42 in the front row from the front side of the table 3. Further, the operator exchanges the embroidery frames 42 in the middle row from the front side of the table 3 through the space between the heads 2. Further, the sewn embroidery frame 42 in the rear row is exchanged from the rear side of the table 3. Therefore, according to the cloth frame device 51 of the fourth embodiment, by moving the sewing frame 5 to the three positions in the front-rear direction, the work cloths in the three front and rear rows are alternately sewn efficiently, and the productivity of the embroidery processed product is increased. Can be increased.

It is a top view which shows the cloth frame apparatus of Example 1 of this invention. It is operation | movement explanatory drawing of the apparatus. It is a perspective view which shows the embroidery frame and support frame of the apparatus. It is the IV-IV sectional view taken on the line of FIG. It is a top view which shows the cloth frame apparatus of Example 2 of this invention. It is operation | movement explanatory drawing of the apparatus. It is a top view which shows the cloth frame apparatus of Example 3 of this invention. It is operation | movement explanatory drawing of the apparatus. It is a top view which shows the cloth frame apparatus of Example 4 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Multi-head embroidery sewing machine 2 Head 3 Table 4 Cloth frame apparatus (Example 1)
DESCRIPTION OF SYMBOLS 5 Sewing frame 6 Embroidery frame 9 Support frame 20 Attachment member 21 Attachment member 22 Attachment member 23 Attachment member 24 Positioning pin 25 Magnet 26 Positioning pin 31 Cloth frame apparatus (Example 2)
41 Cloth frame device (Example 3)
42 Embroidery frame 43 Mounting member 44 Mounting member 51 Cloth frame device (Example 4)
52 Support frame

Claims (7)

  A sewing frame provided on the table so as to be movable in the front-rear and left-right directions, a plurality of embroidery frames arranged in the left-right direction and a plurality of rows in the front-rear direction inside the sewing frame, and a mounting member for detachably attaching the embroidery frame to the sewing frame; A cloth frame device for a multi-head embroidery sewing machine, comprising an operation member for removing the embroidery frame from the sewing frame.   The cloth frame device for a multi-head embroidery sewing machine according to claim 1, wherein the attachment member includes a positioning portion for positioning the embroidery frame on the sewing frame and a magnet for attracting and holding the embroidery frame on the sewing frame.   The cloth frame device for a multi-head embroidery sewing machine according to claim 1 or 2, wherein the operation member is bent upward from a part of the periphery of the embroidery frame so that a finger can be hung from below.   The cloth frame device for a multi-head embroidery sewing machine according to any one of claims 1 to 3, wherein the sewing frame includes a support frame that supports the embroidery frame at both ends.   The cloth frame device for a multi-head embroidery sewing machine according to claim 4, wherein the front and rear embroidery frames are alternately supported by the support frame on the left and right sides, and the operation members project forward from the front edges of the front and rear embroidery frames.   5. The front and rear embroidery frames are supported on the support frame at the same left and right positions, and the operation member is projected forward on the front edge of the front row embroidery frame and rearwardly projected on the rear edge of the rear row embroidery frame. The multi-head embroidery sewing machine cloth frame device described.   The sewing frame includes a front frame for cantilevering the front row of embroidery frames and a rear frame for cantilevering the back row of embroidery frames, and the operation member projects forward from the front edge of the front row of embroidery frames, The cloth frame device for a multi-head embroidery sewing machine according to any one of claims 1 to 3, wherein the cloth head device of the multi-head embroidery sewing machine is provided so as to project rearwardly from a rear edge of the rear row embroidery frame.

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