JP4981354B2 - Flat frame for embroidery processing - Google Patents

Description

  The present invention relates to a flat frame used for embroidery processing of a cylindrical 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 cylinder frame is described in which a window is covered with a cylindrical work cloth, and a support frame is moved in the front-rear direction by a frame drive mechanism and rotated around an axis in the front-rear direction.
JP 2004-91974 A JP 2003-326049 A

  By the way, in this type of cylinder frame, the embroidery range of the cylindrical work cloth is curved and stretched in a cylindrical surface shape on the sewing window, so that the embroidery method may be limited, such as difficult to sew cords and sequins. . In addition, since the embroidery range of the cylindrical work cloth is determined by the size of the sewing window, when processing an embroidery pattern on a long tubular sewing product such as trousers (for example, jeans), the length of the embroidery pattern should be adjusted. 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 a rectangular sewing window having a fixed size is formed on a cylindrical support frame having a fixed diameter, it is necessary to prepare a cylindrical frame having a different diameter and window size according to the thickness of the cylindrical work cloth. There was a problem. In addition, when processing a deformed sewing product such as boot-cut jeans that is partially thin, it is necessary to use a support frame having a diameter that can be inserted into a narrow portion (narrow portion). 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, it was necessary to prepare two types of cylinder frames for one type of sewing product.

  An object of the present invention is for embroidery processing that can solve the above-mentioned problems and can efficiently process an embroidery pattern on a cylindrical work cloth by using a lightweight flat support frame and corresponding to any embroidery method. To provide a flat frame.

In order to solve the above problems, the flat frame for embroidery processing of the present invention is provided with an elongated flat plate-like support frame that fits into a cylindrical work cloth, and an elongated sewing window that defines the embroidery range of the cylindrical work cloth on the support frame. Reinforcing ribs with cloth stoppers that fasten the cylindrical work cloth with clips to fix the peripheral part of the embroidery area of the cylindrical work cloth on the upper surface of the support frame. It is characterized by being formed outward . For the “elongated” degree, for example, the length in the longitudinal direction is preferably at least twice as long as the length in the lateral (width) direction.

In order to fix the peripheral part of the embroidery range of the cylindrical work cloth, the following means can be adopted.
(1) In the case of a narrow work cloth that cannot be secured with a clip, the periphery of the cylindrical work cloth is fastened to the upper surface of the support frame with a double-sided tape.

In the above flat frame, the following means can be preferably employed.
(A) An alignment jig is detachably provided on the support frame, and 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 are provided on the alignment jig.
(B) The support frame is divided into a plurality of parts in the lateral direction or the longitudinal direction, and the parts are connected so as to be position-adjustable so that the sewing window can be expanded and contracted in the lateral direction or the longitudinal direction. thing. In this case, the sewing window can be expanded and contracted with a change in shape between the rectangle and the trapezoid.
(C) An elongated flat plate-shaped presser frame that presses the periphery of the embroidery range of the cylindrical work cloth onto the support frame, and a transparent window that is substantially the same shape as the sewing window of the support frame is provided on the presser frame.

  According to the flat frame for embroidery processing of the present invention, since an elongated sewing window is formed on an elongated flat support frame, the embroidery range of the cylindrical work cloth is stretched flat on the sewing window. Can also respond. In addition, when embroidering the cylindrical work cloth, the weight of the entire flat frame can be reduced compared to the cylindrical frame, which is advantageous for high-speed processing of the embroidery pattern.

Furthermore, when the above-mentioned preferable means are operated, the following effects are obtained.
(A) When the alignment jig is provided, even if the needle drop hole is hidden behind the cylindrical work cloth, the operator places the needle start point on the basis of the contour of the opening of the alignment jig. Can easily fit into the hole.
(B) When the sewing window can be expanded and contracted, it can be applied to a cylindrical work cloth with different thickness and embroidery range in one flat frame, and the maximum embroidery range can be secured. it can. In addition, when the sewing window can be expanded and contracted with a change in shape between a rectangle and a trapezoid, it is not necessary to change the frame when processing irregular shaped products such as boot-cut jeans with a single flat frame. can do.
(C) In the case where the presser frame is provided, since both the support frame and the presser frame can be provided with strength, the structure on the side that affects the embroidery area can be simplified. Therefore, it is easy to apply with a long cylindrical work cloth such as trousers or arms.

  As shown in FIGS. 1 to 5, the flat frame 2 for embroidery processing of the embodiment includes an elongated flat plate-like support frame 15, and a sewing window 18 that defines an embroidery range of the work cloth is formed in the support frame 15 to be elongated. ing.

  An alignment jig 31 is detachably provided on the support frame 15, and the width determination portions 32 and 33 as positioning portions with respect to the support frame 15 and the position of the sewing window 18 on the alignment jig 31 are set on the work cloth W. An opening 37 is provided which is designated from above.

  As shown in FIGS. 6 and 7, the support frame 15 is divided into three parts in a short direction or a longitudinal direction into a pair of end portions and a connecting portion between the both end portions, and the pair of end portions and the connecting portion are formed. The sewing window 18 can be expanded or contracted in the short side direction or the long side direction by connecting so that the position can be adjusted. In this case, the sewing window 18 can be expanded and contracted with a change in shape between the rectangle and the trapezoid.

  As shown in FIG. 8, an elongate flat presser frame 41 that presses the periphery of the embroidery range of the cylindrical work cloth W onto the support frame 15 is provided, and the presser frame 41 has substantially the same shape as the sewing window 18 of the support frame 15. A transmission window 42 is provided.

  An embodiment 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. A Y drive frame 8 is installed at the rear 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. The left and right inner end surfaces extending in the front-rear direction of the notch recess recessed backward from the front side of the table 5 leaving the left and right sides of the table 5 and the left and right sides of the sewing frame 3 are attached to the left and right sides. A guide mechanism comprising a guide roller 7 that abuts and rolls against both the left and right inner end surfaces is provided, and the sewing frame 3 is guided in the front-rear direction by the guide mechanism to prevent lateral blur.

  As shown in FIGS. 3 and 4, the flat frame 2 includes a support frame 15 made of a flat steel plate that is elongated in the front-rear direction of the embroidery sewing machine 1. The length in the longitudinal direction of the support frame 15 is, for example, 60 to 100 cm, and the length in the lateral direction is, for example, 12 cm to 25 cm. A connecting portion 16 that connects the sliding plate 13 is provided at the front end of the support frame 15, and a connecting portion 17 that is connected to the mounting plate 11 is provided at the rear end. 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 elongated in the front-rear direction. The sewing window 18 allows the embroidery range of the long cylindrical work cloth W (see FIG. 6). Is defined.

  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 cloth stoppers 24 are bent outwardly at the lower edge of the outer rib 22, and an inclined portion 25 that abuts against the lower surface of the support frame 15 is provided at the upper end of the inner rib 23. The work cloth W is fixed to the cloth stopper 24 with a spring opening / closing type clip 28. 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 W 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 a plastic plate in a substantially rectangular shape, and includes 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. The width determining portions 32 and 33 are bent downward so as to face the reinforcing rib 21 of the support frame 15 from the outside, and the jig 31 is instructed to the operator from the upper side of the work cloth W by the position of the sewing window 18. The opening 37 has a shape similar to that of the sewing window 18 and elongated in the front-rear direction in a shape in which the sewing window 18 is reduced. An alignment mark 39 is provided around the opening 37.

  When processing an embroidery pattern on a long tubular work cloth W such as trousers (for example, jeans) in the flat frame 2 for embroidery processing having the above configuration, first, as shown in FIG. The jig 31 is removed from the support frame 15 (if necessary, a thick interlining (not shown) is put on the sewing window 18), the cylindrical work cloth W is inserted into the support frame 15 from the front end side, and the sewing window 18 is inserted. Put on. Next, the alignment jig 31 is placed on the work frame W over the support frame 15 (see FIG. 4), positioned to the reinforcing ribs 21 by the width determining portions 32 and 33, and the stitch start point of the work cloth W is dropped. Align with hole 30. At this time, the needle drop hole 30 is hidden behind the cylindrical work cloth W, but the operator easily aligns 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. be able to.

  Subsequently, as shown in FIG. 5, the embroidery range of the cylindrical work cloth W is flattened and spread on the sewing window 18, and the peripheral parts (the left and right side parts in this example) of the embroidery range of the cylindrical work cloth W are expanded. The clip 28 is fixed to the cloth stopper 24 of the reinforcing rib 21. 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 the embroidery pattern is processed in the embroidery range of the cylindrical work cloth W. 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 W can be correctly held in the horizontal plane by the support frame 15, and the embroidery pattern can be processed with high accuracy.

[Modification 1]
In the first modification shown in FIG. 6, the support frame 15 is divided into a pair of end portions 15p, 15q and a connecting portion 15r between the both end portions 15p, 15q in the short direction, and a pair of end portions 15p. 15q and the connecting portion 15r are connected by screws 34 so that the position thereof can be adjusted, so that the sewing window 18 can be expanded and contracted in the lateral direction as shown in (a), or as shown in (b). The sewing window 18 can be expanded and contracted with a change in shape between a rectangle and a trapezoid. In this example, the support frame 15 is further divided into three parts, for example, a pair of end portions 15u, 15v in the longitudinal direction and a connecting portion 15w having an L-shaped cross section between the both end portions, and the pair of end portions 15u, The sewing window 18 can be expanded and contracted in the longitudinal direction by connecting the 15v and the connecting portion 15w with a screw 34 so that the position thereof can be adjusted.

  According to this example, it can be applied to a cylindrical work cloth having a different thickness and embroidery range in one flat frame 2, and the maximum embroidery range can be secured. In addition, since the sewing window can be expanded and contracted with a change in shape between a rectangle and a trapezoid, it is possible to cope with processing a deformed sewing product such as boot-cut jeans with a single flat frame 2 without frame replacement. .

[Modification 2]
In the modified example 2 shown in FIG. 7, the support frame 15 has a shape including a narrow front portion 15a, a wide rear portion 15b, and a tapered intermediate portion 15c. The width of the sewing window 18 is formed in the front portion 15a. The narrow portion 18a is formed, the wide portion 18b is formed in the rear portion 15b, and the tapered portion 18c is formed in the intermediate portion 15c, which is different from the embodiment. Further, the support frame 15 is divided into a pair of end portions 15p, 15q and a connecting portion 15r between the both end portions 15p, 15q in the short direction, and the pair of end portions 15p, 15q and the connecting portion 15r Are connected to each other with a screw 34 so that the position of the sewing window 18 can be adjusted.

  According to this example, when an embroidery pattern is processed on a narrow part (for example, a hem part of a trouser) of the cylindrical work cloth W, the same part is stretched on the narrow part 18a, and a wide part (for example, a cylindrical work cloth) When an embroidery pattern is processed on the waist around the trousers, the same portion can be stretched over the wide portion 18b. As a result, when processing irregularly shaped products such as boot-cut jeans, frame replacement is not required, and embroidery patterns of different sizes can be applied to the narrow and wide portions of the work cloth using one type of flat frame 2. It can be processed efficiently. Moreover, the effect by expansion / contraction of the sewing window 18 is also obtained as in the first modification.

[Modification 3]
The flat frame 2 of Modification 3 shown in FIG. 8 includes not only the support frame 15 but also an elongated flat plate-like press frame 41 that presses the periphery of the embroidery range of the cylindrical work cloth onto the support frame 15. A transparent window 42 having substantially the same shape as the sewing window 18 of the support frame 15 is provided. In this example, the support frame 15 is a simple one provided with a single reinforcing rib 21 (corresponding to 22) and an outer cloth stopper 24, and the holding frame 41 also has an upward reinforcing rib 43 and outward. It is a simple thing provided with the cloth stopper 44. The support frame 15 is covered with a cylindrical work cloth, the presser frame 41 is used to press the periphery of the embroidery range of the cylindrical work cloth onto the support frame 15, and the clip 28 is used to hold both the cloth stoppers 24 and 44 and fix them.

  According to this example, since both the support frame 15 and the presser frame 41 can be provided with strength, the structure on the side that affects the embroidery area can be particularly simplified. Therefore, it is easy to apply with a long cylindrical work cloth such as trousers or arms.

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.

It is a top view of the embroidery sewing machine which attached the flat frame for embroidery processing of the 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 embroidery processes 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 of the example 1 of a change. It is a top view of the flat frame of the example 2 of a change. It is the top view (a) and side view (b) of the flat frame of the example 3 of a change.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Embroidery sewing machine 2 (For embroidery processing) Flat frame 15 Support frame 18 Sewing window 24 Cloth stop 31 Positioning jig 32, 33 Width determining part 37 Opening 41 Presser frame 42 Transmission window W Work cloth

Claims (5)

An elongated flat plate-like support frame (15) that enters the cylindrical work cloth (W) is provided, and an elongated sewing window (18) that defines the embroidery range of the tubular work cloth (W) is provided on the support frame (15) for support. In order to fix the periphery of the embroidery range of the cylindrical work cloth (W) on the upper surface of the frame (15), a cloth stopper (24) for fastening the cylindrical work cloth (W) with a clip is provided, and the support frame (15). A flat frame for embroidery processing formed outwardly on reinforcing ribs (21) provided downward on both left and right edges of the frame.   An alignment jig (31) is detachably provided on the support frame (15). The alignment jig (31) includes positioning portions (32, 33) for the support frame (15), and a sewing window (18). The flat frame for embroidery processing according to claim 1, further comprising an opening (37) for instructing the position from above the work cloth (W).   The support frame (15) is divided into a plurality of parts in the lateral direction or the longitudinal direction, and the parts are connected to each other so that the position can be adjusted, whereby the sewing window (18) is arranged in the lateral direction or the longitudinal direction. The flat frame for embroidery processing according to claim 1 or 2, wherein the flat frame can be expanded and contracted.   The flat frame for embroidery processing according to claim 3, wherein the sewing window (15) can be expanded and contracted with a change in shape between a rectangle and a trapezoid.   An elongate flat plate-shaped presser frame (41) for pressing the periphery of the embroidery range of the cylindrical work cloth (W) onto the support frame (15), and sewing the support frame (15) on the presser frame (41). 5. A flat frame for embroidery processing according to claim 1, wherein a transparent window (42) having substantially the same shape as the window (18) is provided.

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