JP2007297747A - Flat frame for embroidery processing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently process an embroidery pattern of a different size in a narrow part and a wide part of a long cloth to be processed by using a lightweight supporting frame. <P>SOLUTION: A sewing window 18 for dividing an embroidery range of the cloth to be processed is formed long in the front and rear directions of the flat supporting frame 15. The narrow part 18a of the sewing window 18 is provided in the front side part 15a of the supporting frame 15 and the wide part 18b of the sewing window 18 is provided in the rear side part 15b of the supporting frame 15. Downward reinforcing ribs 21 are provided in both the right and the left edges of the supporting frame 15 so as to extend along the longitudinal edges of the sewing window 18. Cloth fasteners 24 and 26 are outwardly protrusively installed in parts of the reinforcing ribs 21 and the supporting frame 15 is covered with a registering tool 31. Furthermore, the registering tool is positioned with positioning parts 32, 33, 34 and 35 in the front, rear, right and left parts relatively to the supporting frame 15. The position of the sewing window 18 is indicated from the upper side of the cloth to be processed with an opening 37. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a flat frame used mainly for embroidery processing of a long work cloth.

2. Description of the Related Art Conventionally, a technique for performing embroidery processing by attaching a cylindrical work cloth such as a sock or a T-shirt to a cylindrical support frame is known. For example, Patent Document 1 and Patent Document 2 include a cylindrical support frame that is long in the front-rear direction of the embroidery sewing machine, and a rectangular sewing window that delimits the embroidery range of the work cloth is formed in the support frame in the front-rear direction. An embroidery processing cylindrical frame is described in which a work cloth is covered on a window, and a support frame is moved in the front-rear direction by a frame driving mechanism and is rotated around an axis in the front-rear direction.
JP 2004-91974 A JP 2003-326049 A

  By the way, in this type of embroidery frame, the embroidery range of the work cloth is determined by the size of the sewing window. Therefore, when processing an embroidery pattern on a long tubular sewing product such as jeans, the embroidery pattern should be matched to the length of the embroidery pattern. It is necessary to extend the sewing window. However, since the conventional cylindrical frame has a sewing window formed in a cylindrical support frame, the support frame becomes longer with the extension of the sewing window, the weight of the entire cylindrical frame increases, and the high-speed machining is adversely affected. There was an inconvenience.

  In addition, since the sewing window is formed in a rectangular shape, a support frame with a diameter that can be inserted into a thin part (narrow part) when processing irregular shaped products such as boot-cut jeans. Need to use. However, since the width of the sewing window is insufficient when a large pattern is processed on a thick portion (wide portion) of the sewn product, it is necessary to replace it with a large-diameter support frame having a wide sewing window. For this reason, there was a problem that two types of cylinder frames had to be prepared for one type of sewing product.

  The object of the present invention is to solve the above-mentioned problems, and to use a lightweight support frame and to efficiently process embroidery patterns of different sizes on the narrow and wide portions of the long work cloth. To provide a frame.

  In order to solve the above problems, the flat frame for embroidery processing of the present invention includes a flat support frame that is long in the front-rear direction of the embroidery sewing machine, and is sewn long in the front-rear direction that defines the embroidery range of the work cloth on the support frame. A window and a reinforcing rib extending along the longitudinal edge of the sewing window are provided, a narrow portion is formed on either one of the front and rear sides of the sewing window, and a wide portion is formed on the opposite side.

In the above flat frame, the following means can be preferably employed.
(A) A support frame is provided with a narrow front portion and a wide rear portion, a narrow portion of the sewing window is formed on the front portion, and a wide portion of the sewing window is formed on the rear portion.
(B) Reinforcing ribs are provided downward on both left and right edges of the support frame, and cloth stoppers for fixing the work cloth to part of the reinforcing ribs are projected outward.
(C) An alignment jig is detachably provided on the support frame, and the alignment jig is provided with a positioning portion for the support frame and an opening for instructing the position of the sewing window from the upper side of the work cloth.

  According to the flat frame for embroidery processing of the present invention, the sewing window is formed long in the front and back on the flat support frame, so the weight of the entire flat frame is lighter than that of the cylindrical frame when embroidering the long processed cloth. This is advantageous for high-speed processing of embroidery patterns. In addition, since the reinforcing rib is provided along the longitudinal edge of the sewing window, the supporting rib can be prevented from being deformed by the reinforcing rib, and the work cloth can be correctly supported in the horizontal plane. In addition, the narrow and wide portions are formed on the front and back of the sewing window, which eliminates the need for frame replacement when processing irregularly shaped products such as boot-cut jeans, and different parts of the work cloth with a single type of flat frame. In addition, embroidery patterns of different sizes can be processed efficiently.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 3, the flat frame 2 for embroidery processing of this embodiment includes a flat support frame 15 that is long in the front-rear direction of the embroidery sewing machine, and a sewing window 18 that defines an embroidery range of the work cloth on the support frame 15. It is formed long in the front-rear direction. The support frame 15 includes a narrow front portion 15a and a wide rear portion 15b. A narrow portion 18a of the sewing window 18 is formed on the front portion 15a, and a wide portion 18b of the sewing window 18 is formed on the rear portion 15b. Is formed.

  Downward reinforcing ribs 21 are provided on the left and right side edges of the support frame 15 so as to extend along the longitudinal edges of the sewing window 18, and the cloth stoppers 24 and 26 for fastening work cloths to a part of the reinforcing rib 21. Projecting outward. A flat plate-shaped alignment jig 31 is detachably placed on the support frame 15, and the positions of the positioning portions 32, 33, 34, 35 with respect to the support frame 15 and the sewing window 18 are placed on the jig 31 on the work cloth. An opening 37 is provided for instructing from above. The opening 37 is similar to the sewing window 18 and is formed in a shape obtained by reducing the sewing window 18.

  Next, Embodiment 1 of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, the embroidery sewing machine 1 of this embodiment includes four embroidery processing flat frames 2 inside the sewing frame 3 and above the cylinder bed 4. The sewing frame 3 is placed on the table 5 and is driven in the front-rear direction by the Y drive mechanism 6. The table 5 is provided with guide rollers 7 for guiding the left and right side portions of the sewing frame 3, and a Y drive frame 8 is installed at the rear portion of the sewing frame 3. An X drive frame 10 is supported on the rail 9 on the Y drive frame 8 so as to be movable in the left-right direction by an X drive mechanism (not shown), and the rear end of the flat frame 2 is attached to a mounting plate 11 on the X drive frame 10. It has been. A support plate 12 is fixed to the front portion of the sewing frame 3, and the front end of the flat frame 2 is supported on the support plate 12 through a sliding plate 13 so as to be movable in the left-right direction.

  As shown in FIGS. 3 and 4, the flat frame 2 includes a flat steel plate support frame 15 that is long in the front-rear direction of the embroidery sewing machine 1, and the support frame 15 includes a narrow front portion 15 a and a wide rear portion 15 b. A tapered intermediate portion 15c is formed. A connecting portion 16 that connects the sliding plate 13 is provided at the front end of the front portion 15a, and a connecting portion 17 that is connected to the mounting plate 11 is provided at the rear end of the rear portion 15b. In the region excluding the connecting portion 16 and the connecting portion 17, a sewing window 18 is formed in the support frame 15 so as to be long in the front-rear direction. The sewing window 18 includes a narrow portion 18a included in the front portion 15a of the support frame 15, a wide portion 18b included in the rear portion 15b, and a tapered portion 18c included in the intermediate portion 15c, and each portion 18a, 18b, The embroidery range of the long cylindrical work cloth 19 (see FIG. 6) is defined by 18c.

  As shown in FIG. 5, reinforcing ribs 21 are provided on the left and right side edges of the support frame 15 so as to extend along the longitudinal edges of the sewing window 18. The reinforcing rib 21 is configured in a double manner by an outer rib 22 bent downward on both left and right edges of the support frame 15 and an inner rib 23 welded to the inner surface of the outer rib 22. A plurality of upper cloth stoppers 24 are bent outward at the lower edge of the outer rib 22, and an inclined portion 25 that abuts the lower surface of the support frame 15 is provided at the upper end of the inner rib 23. A plurality of lower cloth stoppers 26 facing the upper cloth stopper 24 are welded to the lower outer surface of the inner rib 23 (27 in FIG. 2 indicates a welded portion), and the work cloth 19 is clipped to the upper and lower cloth stoppers 24, 26. It is fixed at. A pair of left and right vertical ribs 29 are welded to the upper surface of the front end connecting portion 16 of the support frame 15. A flexible material 20 for preventing metal contact with the cylinder bed 4 may be attached to the lower surface of the support frame 15.

  As shown in FIGS. 3 to 5, the support frame 15 is detachably covered with an alignment jig 31 for aligning the work cloth 19 with the needle drop hole 30 (sewing position) at the front end of the cylinder bed 4. . The jig 31 is formed of a flat steel plate or plastic plate in a substantially rectangular shape, and a pair of left and right width determining portions 32 and 33 for positioning the jig 31 in the width direction of the support frame 15 and the jig 31 are supported by the support frame 15. And a pair of longitudinally determining portions 34 and 35 for positioning in the longitudinal direction. The width determining portions 32 and 33 are bent downward so as to face the outer rib 21 of the support frame 15 from the outside, and the vertical determining portion 34 at the front end faces upward to the vertical rib 29 of the support frame 15 from the rear side. The rear end vertical determining portion 35 is bent upward so as to face the reinforcing metal fitting 36 on the mounting plate 11 from the front. Further, the jig 31 is formed with an opening 37 that indicates the position of the sewing window 18 from the upper side of the work cloth 19 to the operator and is long in the front-rear direction in a shape similar to the sewing window 18 and a reduced size of the sewing window 18. Yes. A handle 38 is bent outwardly at the width determining portions 32 and 33, and an alignment mark 39 is provided around the opening 37.

  In the embroidery flat frame 2 having the above-described configuration, when an embroidery pattern is processed on a long cylindrical work cloth 19 such as jeans, first, as shown in FIG. 15, a thick interlining (not shown) is put on the sewing window 18, and the work cloth 19 is inserted into the support frame 15 from the front end side, and is put on the sewing window 18 in a state of being overlapped with the interlining. Next, the alignment jig 31 is placed on the support frame 15 from above the work cloth 19 (see FIG. 4), and is positioned in the front / rear and left / right directions by the width determining portions 32, 33 and the vertical determining portions 34, 35. Align the start of sewing with the needle drop hole 30. At this time, the needle drop hole 30 is hidden behind the work cloth 19 and cannot be seen, but the operator can easily align the sewing start position with the needle drop hole 30 based on the outline of the opening 37 of the jig 31 and the mark 39. it can. FIG. 6A shows a state in which the narrow portion (hem portion of bootcut jeans) 19 a of the work cloth 19 is aligned with the narrow portion 18 a of the sewing window 18.

  Subsequently, as shown in FIG. 5, the work cloth 19 is stretched and spread on the sewing window 18, and the left and right side portions of the work cloth 19 are fastened to the upper and lower cloth stoppers 24 and 26 of the reinforcing rib 21 with the clips 28. Thereafter, the alignment jig 31 is removed from the support frame 15, the rear end coupling portion 17 of the support frame 15 is coupled to the mounting plate 11 of the X drive frame 10 with screws (not shown), and the front end coupling portion of the support frame 15. 16 is supported on the support plate 12 of the sewing frame 3 through the sliding plate 13 (see FIG. 1). Then, the embroidery sewing machine 1 is activated, the support frame 15 is driven in the front-rear and left-right directions, and a relatively small embroidery pattern is processed on the narrow portion 19 a of the work cloth 19. At this time, since the support frame 15 is reinforced by the inner and outer double reinforcing ribs 21, there is no possibility that the support frame 15 is deformed by its own weight or an impact at the time of needle drop. Therefore, the long cylindrical work cloth 19 can be correctly held in the horizontal plane by the support frame 15 and the embroidery pattern can be processed with high accuracy.

  On the other hand, as shown in FIG. 6B, when the embroidery pattern is processed on the wide portion 19b of the long cylindrical work cloth 19 (the waist around the jeans), the wide portion 19b is replaced with the wide portion 18b of the sewing window 18. The sewing start position of the work cloth 19 is aligned with the needle drop hole 30, and the left and right sides of the work cloth 19 are fastened to the cloth stoppers 24 and 26 with the clips 28. A relatively large embroidery pattern is formed on 19b. In this way, when processing odd-shaped sewing products such as boot-cut jeans, frame replacement is not required, and the width 19a and the width 19b of the work cloth 19 are different in size using one type of flat frame 2. The embroidery pattern can be processed efficiently. Further, by effectively utilizing the entire length of the sewing window 18, an embroidery pattern that is long in the length direction can be easily processed without re-working the work cloth 19 on the support frame 15.

The present invention is not limited to the above-described embodiments. For example, as described below, the present invention can be appropriately modified and embodied without departing from the spirit of the invention.
(1) The flat frame 2 of the above embodiment is used for embroidery processing of a relatively short cylindrical work cloth such as a T-shirt or a pillow cover.
(2) The flat frame 2 of the above embodiment is used for embroidery processing of flat objects such as bath towels and mufflers.
(3) In the case of a work cloth having a narrow width that cannot be afforded by the clip 28, this is pasted on the support frame 15 with double-sided adhesive tape at a plurality of locations around the sewing window 18.
(4) The support frame 15 is formed in a long rectangle in the front-rear direction so that each part in the front-rear direction has the same width.
(5) The narrow portion 18 a of the sewing window 18 is formed on the rear portion of the support frame 15, and the wide portion 18 b of the sewing window 18 is formed on the front portion of the support frame 15.

It is a top view of the embroidery sewing machine which shows one Example of this invention. It is the II-II sectional view taken on the line of FIG. It is a perspective view which shows the flat frame for the embroidery process of the embroidery sewing machine of FIG. It is a top view of this flat frame. It is the VV sectional view taken on the line of FIG. It is a top view of the flat frame explaining the sticking procedure of a long cylindrical work cloth.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Embroidery sewing machine 2 Flat frame for embroidery process 15 Support frame 15a Front part 15b Rear part 18 Sewing window 18a Narrow part 18b Wide part 19 Work cloth 21 Reinforcement rib 22 Outer rib 23 Inner rib 24 Upper cloth stopper 26 Lower cloth stopper 31 Alignment jig 32, 33 Width determining part 34, 35 Vertical determining part 37 Opening part

Claims (4)

  A flat support frame that is long in the front-rear direction of the embroidery sewing machine is provided, and a sewing window that is long in the front-rear direction that delimits the embroidery range of the work cloth and a reinforcing rib that extends along the longitudinal edge of the sewing window are provided on the support frame. A flat frame for embroidery processing, characterized in that a narrow portion is formed on one side of the front or back of the window and a wide portion is formed on the opposite side.   The embroidery according to claim 1, wherein a narrow front portion and a wide rear portion are provided on the support frame, a narrow portion of the sewing window is formed on the front portion, and a wide portion of the sewing window is formed on the rear portion. Flat frame for processing.   The flat frame for embroidery processing according to claim 1 or 2, wherein the reinforcing rib is provided downward on both right and left side edges of the support frame, and a cloth stopper for fixing the work cloth is provided outwardly on a part of the reinforcing rib.   An alignment jig is detachably provided on the support frame, and the alignment jig is provided with a positioning portion for the support frame and an opening for instructing the position of the sewing window from the upper side of the work cloth. Or the flat frame for embroidery processing of 3.

Images