JP4975363B2 - Long frame for embroidery processing - Google Patents

Description

  The present invention relates to a long frame suitable for embroidery processing of a long cylindrical work cloth.

Conventionally, a cylindrical frame has been widely used for embroidery processing of a cylindrical work cloth. For example, in Patent Document 1, a cylindrical frame is attached to a frame driving device of an embroidery sewing machine, a sewing window for determining an embroidery range of a work cloth is formed on a peripheral wall of the cylindrical frame, and cylindrical processing such as socks and a wristband is formed on the sewing window. An apparatus for processing an embroidery pattern by covering a cloth is described. In Patent Document 2, a cylindrical frame is divided into a pair of front and rear cylindrical elements, a sewing window having a substantially entire circumference is formed between both sides, the position of one element in the front-rear direction is adjusted, and the length of the sewing window is adjusted. A device that can be extended and contracted is described.
JP 2003-326049 A JP 2004-49548 A

  However, according to the cylindrical frame of Patent Document 1, since the sewing window is formed on the peripheral wall of the cylindrical frame, the embroidery pattern is arranged in the length direction of a long cylindrical work cloth, for example, a sleeve of a jacket or a trouser (such as jeans). When processing for a long time, it was necessary to replace the entire cylindrical frame. The cylindrical frame of Patent Document 2 can adjust the length of the sewing window, but since the sewing window is wide open in the circumferential direction of the cylindrical frame, the embroidery pattern is elongated in a part of the width direction of the long cylindrical work cloth. In the case of processing, there is a problem that the holding force of the work cloth is insufficient and it is not suitable for practical use.

  An object of the present invention is to solve the above-mentioned problems and to provide a long frame for embroidery processing capable of accurately processing various embroidery patterns that are long in the length direction of a long cylindrical work cloth and various in the width direction.

In order to solve the above-described problems, the long frame for embroidery processing of the present invention includes a base frame that is attached to a frame driving device of an embroidery sewing machine, and a cloth tension frame that is long in the front-rear direction for attaching the work cloth. A central shaft having a front element attached to the front part of the frame driving device and a rear element attached to the rear part of the frame driving device, and supported by the front part of the frame driving device on the front end surface of the front element projecting a peripheral wall of the front element front support portion for supporting the front end portion of the upholstered frame provided, on the rear side elements provided side supporting portion after supporting the rear end portion of the upholstered frame, upholstered frame A sewing window that determines the embroidery range of the work cloth is formed between the front end and the rear end, and a plurality of fabric tension frames with different sewing window shapes are spanned between the front support part and the rear support part of the base frame. interchangeably attached to the base frame in a state, Hobodo the front element and the rear element and upholstered frame base frame Forming a cylindrical surface having a diameter, the overall shape when fitted with upholstered frame, characterized in that a tubular to the base frame.

( a) A front support that includes a front element whose base frame is attached to a front portion of the frame driving device and a rear element that is attached to a rear portion of the frame driving device, and supports the front end portion of the cloth tension frame to the front element. Providing a rear support portion for supporting the rear end portion of the upholstery frame on the rear element. If it carries out like this, a base frame can be attached to a frame drive device in the both-ends state, and a heavy long cylindrical work cloth of trousers (blue bread etc.) can be supported in a stable posture in a horizontal plane.

(B) A cylindrical surface having substantially the same diameter is formed on the front and rear elements of the base frame and the upholstery frame, and the overall shape of the long frame when the upholstery frame is attached to the base frame is cylindrical. . The cylindrical long frame has an advantage that an elongated pattern embroidery pattern can be processed with high accuracy on a thin long cylindrical work cloth, for example, a sleeve of a trouser or a jacket.

Here, with respect to the base frame and the fabric tension frame, preferably, the following configuration can be adopted.
(C) The front side element and the rear side element of the base frame are connected by a connecting element, and a joining part that joins the connecting element to the cloth frame on both the left and right sides of the sewing window and an opening part that opens the joining part left and right are provided. Cover the base frame with the fabric frame through the open part. In this way, the cloth tension frame can be easily attached to and detached from the base frame, and weight reduction can be achieved without reducing the rigidity of the cloth tension frame.

(D) The front side element and the rear side element of the base frame are separated, the cloth tension frame is formed in a cylindrical shape with the entire circumference closed, and the front end portion of the cloth tension frame is attached to the front element of the base frame. Attach the rear edge to the rear element of the base frame. In this case, sufficient rigidity can be ensured in the cloth tension frame, and the sewing window can be greatly changed in the circumferential direction of the cloth tension frame.
(E) The frame drive device includes a support frame and a rotation drive mechanism, the central axis is supported by the support frame, and the rear element is attached to the rotation drive mechanism. In addition, a flange is fixed to the rear element, an attachment portion to be attached to the rotation drive mechanism is provided after the flange, and a rear support portion is provided in front of the flange.

According to the long frame for embroidery processing of the present invention, the base frame supports the upholstery frame at both front and rear ends, so that the sewing window can be formed long over substantially the entire length of the upholstery frame. In addition, since the cloth frame is attached to the base frame in a replaceable manner, the shape and opening area of the sewing window can be selected correctly according to the pattern of the embroidery pattern. Therefore, there is an effect that the embroidery pattern can be processed with high accuracy in various patterns in the width direction which is long in the length direction of the long cylindrical work cloth. Further, the front support portion includes a front element that is attached to the front portion of the frame driving device and a rear element that is attached to the rear portion of the frame driving device, and supports the front end portion of the upholstery frame to the front element. And the rear element is provided with a rear support part that supports the rear end of the upholstered frame, so that the base frame is attached to the frame drive device in a double-sided state, and the trousers (blue jeans, etc.) are long, long cylinders. The work cloth can be supported in a stable posture in a horizontal plane. A cylindrical surface having substantially the same diameter is formed on the front and rear elements of the base frame and the fabric tension frame, and the overall shape of the long frame when the fabric tension frame is attached to the base frame is thin. An elongated embroidery pattern can be processed with high accuracy on a long cylindrical work cloth, for example, a sleeve of a trouser or a jacket.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 2, the long frame 2 for embroidery processing according to this embodiment includes a base frame 11 attached to a frame driving device for an embroidery sewing machine, and a cloth tension frame 12 that is long in the front-rear direction for attaching a long cylindrical work cloth. And. The base frame 11 includes a front element 13 attached to a front portion of the frame driving device and a rear element 14 attached to a rear portion of the frame driving device in an integrated or separated state.

  The front element 13 is provided with a front support portion 20 that supports the front end portion 19 of the cloth frame 12, and the rear element 14 is provided with a rear support portion 24 that supports the rear edge portion 23 of the cloth frame 12. Yes. A sewing window 25 for determining the embroidery range of the work cloth is formed on the cloth frame 12 so as to extend between the front end portion 19 and the rear end portion 23, and a plurality of cloth frame frames 12 having different shapes of the sewing window 25 are arranged in front and rear. Are attached to the base frame 11 in a replaceable manner in a state where the support portions 20 and 24 are spanned.

  Next, Embodiment 1 of the present invention will be described with reference to FIGS. As shown in FIG. 1, in the embroidery sewing machine 1 of this embodiment, four long embroidery processing frames 2 are arranged side by side on the inner side of the support frame 3 and are arranged on the inner side of each long frame 2. A cylinder bed 4 is inserted. The support frame 3 is placed on the table 5 and driven in the front-rear direction by the three right and left linear drive mechanisms 6, but the support frame 3 itself is not driven in the left-right direction. Further, the left and right inner end surfaces extending in the front-rear direction of the notch recesses 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 support frame 3 are attached to the left and right sides. A guide mechanism comprising a guide roller 7 that abuts on both the left and right inner end faces and rolls is provided, and the support mechanism 3 is guided in the front-rear direction by the guide mechanism to prevent lateral blur.

  On the rear side of the support frame 3, four left and right rotation drive mechanisms 8 that rotate the long frame 2 around the cylinder bed 4 are disposed. The rotation drive mechanism 8 uses the same mechanism as in Patent Documents 1 and 2, that is, a mechanism that converts the linear motion of the left-right moving body into the rotational motion of the long frame 2 using a wire. The support frame 3, the linear drive mechanism 6, and the rotation drive mechanism 8 constitute a frame drive device 9 that drives the long frame 2.

  As shown in FIGS. 2, 3, and 4, the long frame 2 includes a base frame 11 that is attached to the frame driving device 9, and a cloth tension frame 12 that is long in the front-rear direction for attaching the long cylindrical work cloth W. It is provided and the whole is formed in the cylinder shape. The base frame 11 is formed into a cylindrical shape slightly longer than the upholstery frame 12 and connects the front element 13 whose front end is closed, the rear element 14 whose front and rear ends are open, and the front element 13 and the rear element 14. The connecting element 15 and the opening 16 having the same length as the connecting element 15 are provided.

  A center shaft 18 that is supported by a front bracket 17 (see FIG. 1) of the support frame 3 projects from the front end surface of the front element 13, and the front side that supports the front end 19 of the upholstery frame 12 on the peripheral wall of the front element 13. A support portion 20 is provided. A flange 21 is fixed to the rear element 14, and a mounting portion 22 that is attached to the rotary drive mechanism 8 is provided after the flange 21, and a rear support that supports the rear end portion 23 of the cloth tension frame 12 in front of the flange 21. A portion 24 is provided.

  The cloth frame 12 is formed into a semi-cylindrical sheet metal, and a sewing window 25 for determining an embroidery range of the work cloth W is formed in a cylindrical surface having substantially the same diameter as the base frame 11, and the left and right sides of the sewing window 25 are formed on the base frame 11. A joining portion 26 joined to the connecting element 15 and an opening portion 27 that opens the joining portion 26 to the left and right below the sewing window 25 are provided. The cloth frame 12 is detachably placed on the base frame 11 through the opening 27, and is attached to the base frame 11 with a plurality of screws 28 (see FIG. 4).

  In the long frame 2 for embroidery processing, a plurality of upholstery frames 12 having different shapes of the sewing window 25 are prepared. A cloth tension frame 12A shown in FIG. 4 includes a rectangular sewing window 25A that is wide in the width direction and straight in the length direction of a long cylindrical work cloth W such as trousers (eg, jeans). 5A and 5B are provided with arcuate sewing windows 25B and 25C that are narrow in the width direction and curved in the length direction. 6 (a) and 6 (b) includes a corrugated sewing window 25D that is narrow in the width direction and meanders in the length direction.

  Each of the sewing windows 25A to 25D extends long between the front end 19 and the rear end 23 of the fabric frames 12A to 12D so that an embroidery pattern continuous in the length direction of the work cloth W can be processed. . And each cloth tension frame 12A-12D is attached to the base frame 11 in the state which spanned the front-and-rear both-ends part 19 and 23 to the support parts 20 and 24 before and behind the base frame 11, so that replacement | exchange was possible. The work cloth W is held on the long frame 2 by a belt 29 (see FIG. 4), and a surplus portion of the work cloth W is fixed to a cloth stopper 30 (see FIG. 3) protruding from the lower surface of the base frame 11 with a clip. Worn.

Therefore, according to the long frame 2 for embroidery processing of the first embodiment, the following operational effects can be obtained.
(1) Since the front side element 13 and the rear side element 14 of the base frame 11 support the upholstery frame 12 at the front and rear end portions 19 and 23, the sewing window 25 is formed to be long over substantially the entire length of the upholstery frame 12. Can do. For this reason, the embroidery pattern continuous in the length direction can be efficiently processed in one step without re-working the work cloth W.

(2) Since the upholstery frame 12 is attached to the base frame 11 in a replaceable manner, the shape of the sewing window 25 can be selected according to the embroidery pattern. For this reason, for example, a large embroidery pattern with the maximum width is processed using the cloth frame 12A shown in FIG. 4, or the cloth frames 12B and 12C shown in FIGS. 5 (a) and 5 (b). A narrow bow-shaped embroidery pattern can be processed, or a wavy embroidery pattern (embroidery pattern that can be shown large as a whole with a small pattern) can be processed using the upholstery frame 12D shown in FIG. 6 (a). As shown in Fig. 5, the same upholstery frame 12D can be reversed back and forth to process a wave embroidery pattern reverse to the left and right.

(3) Since the size of the sewing window 25 can be selected in accordance with the embroidery pattern, the work cloth W is placed on the sewing window 25 having an appropriate opening area to prevent deformation and loosening of the work cloth W during sewing, and the embroidery pattern Machining accuracy can be improved.
(4) The change of the embroidery pattern can be dealt with by exchanging the cloth frame 12 separately, and it is not necessary to prepare many kinds of long frames, and the accessory management of the embroidery sewing machine 1 becomes easy.
(5) Since the open portion 27 is provided in the cloth tension frame 12, the cloth frame 12 is simply attached to the base frame 11 by replacing only the cloth tension frame 12 with the base frame 11 being attached to the frame driving device 9. be able to.

(6) The material and type of the work cloth W, such as using the cloth frame 12 whose surface is anti-slip in the case of a slippery work cloth or using the thick cloth frame 12 in the case of a heavy work cloth. The material of the upholstery frame 12 can be selected according to the above.
(7) It is possible to select a material according to the load, such as using a thick steel plate for the base frame 11 (see FIG. 3) or using a thin steel plate or resin plate for the upholstery frame 12. The rigidity of the entire frame 2 can be ensured and the weight can be reduced.

  7 and 8 show a second embodiment of the present invention. This embroidery long frame 32 is different from the first embodiment in the structure of the base frame 33 and the shape of the fabric tension frame 34. As shown in FIG. 7, the base frame 33 includes a front element 35 that is attached to the front portion (bracket 17) of the frame driving device 9 and a rear element that is attached to the rear portion (rotary drive mechanism 8) of the frame driving device 9. 36 in a separated state. The front element 35 is provided with a front support portion 38 that supports the front end portion 37 of the fabric frame 34, and the rear element 36 is provided with a rear support portion 40 that supports the rear end portion 39 of the fabric frame 34. Yes.

  The cloth tension frame 34 is formed in a cylindrical shape whose entire circumference is closed, and includes a sewing window 41 that determines an embroidery range of the work cloth W in a cylindrical surface having substantially the same diameter as the base frame 33. The front end portion 37 of the fabric frame 34 is inserted into the front support portion 38 of the base frame 33, and the rear end portion 39 is inserted into the rear support portion 40. Then, as illustrated in FIGS. 8A and 8B, sewing windows 41A and 41B having different shapes are formed in the plurality of cloth tension frames 34A and 34B, and the cloth tension frames 34A and 34B are provided at both front and rear end portions 37. , 39 are mounted so as to be exchangeable in a state where they are stretched over the support portions 38, 40 before and after the base frame 33.

Therefore, according to the long frame 42 for embroidery processing of the second embodiment, the following effects can be obtained.
(8) Since the cloth tension frame 34 is formed in a cylindrical shape with the entire circumference closed, the rigidity can be increased and the entire length of the heavy long cylindrical work cloth can be correctly supported in the horizontal plane.
(9) The sewing window 41 can be greatly changed in the circumferential direction of the cloth frame 34, and for example, processing of an embroidery pattern of a spiral pattern is possible.

Example 3 of the present invention described below is a reference invention.
FIG. 9 shows a third embodiment of the present invention. The long frame 43 for embroidery processing includes a flat base frame 44 attached to a frame driving device and a flat cloth tension frame 45 for attaching a long cylindrical work cloth, and is formed in a flat frame shape as a whole. ing. The base frame 44 includes a front element 46 attached to the front portion of the frame driving device and a rear element 47 attached to the rear portion of the frame driving device. In the case of the flat frame-like long frame 43, the frame driving device is equipped with a mechanism for linearly driving the base frame 44 in the left-right direction instead of the rotation driving mechanism 8 shown in FIG. Further, in this embodiment, the base frame 44 is formed by sheet metal tapering in accordance with the boot-cut shape of blue jeans.

  The front element 46 is provided with a front support part 49 that supports the front end part 48 of the fabric frame 45, and the rear element 47 is provided with a rear support part 51 that supports the rear end part 50. A sewing window 52 that determines the embroidery range of the work cloth is formed in the cloth tension frame 45 so as to extend between the front end portion 48 and the rear end portion 50. A plurality of upholstery frames 45 (45A, 45B) having different shapes of the sewing windows 52 (52A, 52B) span the front and rear end portions 48, 50 over the front and rear support portions 49, 51 of the base frame 44. Thus, the base frame 44 is replaceably attached. Therefore, this flat frame-like long frame 43 can be used to accurately process the embroidery pattern in various patterns in the width direction that are long in the length direction of the long cylindrical work cloth.

It is a top view of the embroidery sewing machine which shows embodiment of this invention. It is a perspective view of the long frame for embroidery processing which shows Example 1 of the present invention. It is sectional drawing of this elongate frame. It is a top view of this elongate frame. It is a perspective view which shows the cloth tension frame of this elongate frame. It is a top view which shows another cloth tension frame. It is a perspective view of the long frame for embroidery processing which shows Example 2 of the present invention. It is a perspective view which shows the cloth tension frame of this elongate frame. It is a perspective view of the long frame for embroidery processing which shows Example 3 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Embroidery sewing machine 2 Long frame for embroidery processing (Example 1)
DESCRIPTION OF SYMBOLS 9 Frame drive device 11 Base frame 12 Fabric tension frame 13 Base frame front element 14 Base frame rear element 15 Base frame connection element 19 Front frame end portion 20 Base frame front support portion 23 Fabric tension frame rear End portion 24 Back support portion of base frame 25 Sewing window 26 Joint portion 27 Open portion 32 Long frame for embroidery processing (Example 2)
33 Base frame 34 Cloth frame 35 Front element of base frame 36 Rear element of base frame 37 Front end of cloth frame 38 Front support part of base frame 39 Rear end part of cloth frame 40 Back support part of base frame 41 Sewing window 43 Long frame for embroidery processing (Example 3)
44 Base frame 45 Fabric tension frame 46 Base frame front element 47 Base frame rear element 48 Fabric tension frame front end 49 Base frame front support section 50 Fabric tension frame rear end section 51 Base frame rear support section 52 Sewing window W Long cylindrical work cloth

Claims (5)

A base frame (11, 33) attached to the frame driving device (9) of the embroidery sewing machine (1), and a cloth tension frame (12, 34) long in the front-rear direction for attaching the work cloth (W),
A front element (13, 35) in which the base frame (11, 33) is attached to the front part of the frame driving device (9) and a rear element (14, 36) attached to the rear part of the frame driving device (9) And
A central shaft (18) supported by the front portion of the frame driving device (9) is projected from the front end face of the front element (13, 35), and the cloth frame (12, 35) is formed on the peripheral wall of the front element (13, 35) . 34) provided with front support portions (20, 38) for supporting the front end portions (19, 37) ,
The rear element (14, 36) is provided with a rear support part (24, 40) for supporting the rear end part (23, 39) of the fabric frame (12, 34),
A sewing window (25, 41) for determining an embroidery range of the work cloth (W) is formed between the front end portion (19, 37) and the rear end portion (23, 39) of the fabric frame (12, 34),
A plurality of upholstery frames (12, 34) having different shapes of the sewing windows (25, 41) are used as front support portions (20, 38) and rear support portions (24, 40) of the base frame (11, 33). Attachable to the base frame (11, 33) in a state of being stretched ,
Cylindrical surfaces having substantially the same diameter are formed on the front elements (13, 35), the rear elements (14, 36), and the upholstery frames (12, 34) of the base frame (11, 33). The long frame for embroidery processing is characterized in that the overall shape when the cloth tension frame (12, 34) is attached to the cylinder is a cylindrical shape . The front element (13) and the rear element (14) of the base frame (11) are connected by a connecting element (15), and connecting elements (15) are connected to the fabric frame (12) on both the left and right sides of a sewing window (25). 15) and a release part (27) that opens the joint part (26) to the left and right, and a cloth frame (12) is put on the base frame (11) through the release part (27). The long frame for embroidery processing according to claim 1. The front side element (35) and the rear side element (36) of the base frame (33) are separated, and the upholstery frame (34) is formed in a cylindrical shape with the entire circumference closed, and the upholstery frame (34) The front end (37) was attached to the front element (35) of the base frame (33), and the rear end (39) of the upholstery frame (34) was attached to the rear element (36) of the base frame (33). The long frame for embroidery processing according to claim 1 . The frame drive device (9) includes a support frame (3) and a rotation drive mechanism (8),
The central axis (18) is supported by the support frame (3),
The long frame for embroidery processing according to any one of claims 1 to 3, wherein the rear element (14, 36) is attached to the rotation drive mechanism (8) . A flange (21) is fixed to the rear element (14, 36), and an attachment portion (22) to be attached to the rotational drive mechanism (8) is provided after the flange (21), and the flange (21). The long frame for embroidery processing according to claim 4, wherein the rear support portion (24, 40) is provided in front of the embroidery.

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