JP2006274463A - Raw fabric supply device for embroidery machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a raw fabric supply device for an embroidery machine, making it possible that creases are difficult to be formed, when a raw fabric is stretched again, by relaxing tension acting on the raw fabric when transferring an embroidery frame. <P>SOLUTION: This the raw fabric supply device 11 is used for the embroidery machine 1 which sequentially makes an embroidered pattern on the raw fabric F, by stretching a part of the raw fabric F on the embroidery frame 6, then longitudinally and transversely driving the embroidery frame 6 on a sewing machine table 5, so as to make a part of the embroidered pattern on one region of the raw fabric F, and again stretching the raw fabric F on the embroidery frame 6, so as to make the next part of the embroidered pattern on the next region of the raw fabric F, wherein the raw fabric supply device 11 is positioned at the rear of the embroidery machine 1, so that a frame 13 thereof supports a roll 15 on which the raw fabric F is wound, and further a shaft 19 which slackens the raw fabric F drawn out of the roll 15 at a position lower than a surface level of the sewing machine table 5 is mounted thereon. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a raw material supply apparatus that continuously supplies a long original material to an embroidery machine.

  Conventionally, as shown in FIGS. 5 and 6, an original fabric supply device 52 is installed behind the embroidery machine 51, and a roll 54 is supported on a frame 53 of the original fabric supply device 52. The anti-F is directly supplied, a part of the original fabric F is attached to the embroidery frame 55, the embroidery frame 55 is driven back and forth and left and right on the sewing machine table 56, and an embroidery pattern is processed in one area of the original fabric F. A technique is known in which the original fabric F is pulled out in the longitudinal direction and stretched on the embroidery frame 55, and an embroidery pattern is sequentially processed in a region next to the original fabric F.

Patent Document 1 describes a technique for directly supplying an original fabric for quilting to a multi-head embroidery machine using a supply device similar to that shown in FIG. Patent Document 2 describes a method for accurately sewing a continuous pattern on a raw fabric without a break.
Japanese Patent Publication No. 61-5744 Japanese Patent No. 2736440

  However, since the conventional fabric supply device 52 directly supplies the fabric F from the roll 54 to the embroidery machine 51, as shown in FIG. 6A, when the embroidery frame 55 moves left and right during processing. The original fabric F is strongly pulled obliquely between the embroidery machine 51 and the roll 54. For this reason, as shown in FIG. 6B, when processing the next region, when the embroidery frame 55 is returned and the original fabric F is re-stretched, wrinkles are formed inside the embroidery frame 55 due to the residual stress of the original fabric F. It becomes easy to do. Accordingly, every time the original fabric F is re-stretched, it is necessary for the operator to extend the heel by hand and correct the position of the original fabric F with respect to the embroidery frame 55, and this correction work takes time and effort.

  An object of the present invention is to provide a raw material supply apparatus for an embroidery machine that solves the above-mentioned problems, relaxes the tension acting on the raw material when the embroidery frame moves, and can suppress the occurrence of wrinkles when the original material is re-stretched. It is to provide.

  In order to solve the above-described problems, an original fabric supply apparatus of the present invention attaches a part of an original fabric to an embroidery frame, drives the embroidery frame back and forth and right and left on a sewing machine table, and embroidery patterns in one area of the original fabric In an embroidery machine that re-stretches the original fabric on the embroidery frame and processes the embroidery pattern sequentially on the next area of the original fabric, the apparatus continuously supplies the original fabric to the embroidery machine, It is characterized by comprising a frame for supporting a roll wound with rolls and a guide member for loosening the raw material fed from the roll at a level lower than the surface level of the sewing machine table.

  Here, the guide member has a function of folding back the original fabric at a position lower than the surface level of the sewing machine table. When the turning point of the original fabric is positioned behind the roll, the guide member itself may exert tension on the original fabric as the embroidery frame moves. For this reason, it is preferable to provide the guide member at a position lower than the surface level of the sewing machine table between the roll and the embroidery machine. The guide member is not limited to a specific member, and examples thereof include a shaft, a rod, and a roller that are longer than the width of the original fabric.

  According to the original fabric supply apparatus of the present invention, the guide member loosens the original fabric at a position lower than the surface level of the sewing machine table, so that the tension acting on the original fabric when the embroidery frame moves is relaxed. For this reason, when processing the next area, when the original fabric is removed from the embroidery frame and re-stretched, it becomes difficult to make wrinkles inside the embroidery frame. Further, since the original fabric is pulled by the weight of the portion hanging from the sewing machine table, when the original fabric is removed from the embroidery frame, the original fabric is automatically tensioned inside the embroidery frame. Therefore, the operator can easily perform correction work incidental to re-stretching in a short time.

  1 and 2 show the best mode for carrying out the present invention. The embroidery machine 1 according to this embodiment attaches a part of the original fabric F to the embroidery frame 6, drives the embroidery frame 6 back and forth and left and right on the sewing machine table 5 and processes an embroidery pattern in one area of the original fabric F. The original fabric F is stretched on the embroidery frame 6 and the embroidery pattern is sequentially processed in the area next to the original fabric F. On the rear side of the embroidery machine 1, an original fabric supply device 11 that continuously supplies the original fabric F to the embroidery machine 1 is installed. A roll 15 around which the original fabric F is wound is supported on the frame 13 of the original fabric supply apparatus 11, and the original fabric F is folded between the roll 15 and the embroidery machine 1 at a position lower than the surface level of the sewing machine table 5. A shaft 19 is provided as a guide member for loosening.

  Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the machine frame 2 of the embroidery machine 1 has 16 sewing heads 3 and the same number of sewing beds 4 arranged in the left-right direction. A sewing table 5 is horizontally arranged at the same height as the sewing bed 4, and an embroidery frame 6 having a length capable of holding the original fabric F in two rows on the left and right sides is placed on the sewing table 5. The embroidery frame 6 is provided so that the inner frame 6b can be removed inside the outer frame 6a, and the original fabric F is stretched in the longitudinal direction and held.

  Then, the embroidery machine 1 attaches a part of the original fabric F to the embroidery frame 6 and drives the embroidery frame 6 back and forth and right and left on the sewing machine table 5 by the X drive mechanism 7 and the Y drive mechanism 8. After the embroidery pattern is processed in one area, the original fabric F is drawn out in the longitudinal direction and re-attached to the embroidery frame 6, and the embroidery pattern is sequentially processed in a plurality of areas of the original fabric F. A clamping device 9 is provided at the front and rear edges of the sewing machine table 5 to unclamp the original fabric F during processing and to clamp the original fabric F during re-stretching.

  On the rear side of the embroidery machine 1, two left and right original fabric supply devices 11 for continuously supplying the original fabric F to the embroidery machine 1 are installed. Two original fabric collecting devices 12 that collect from 1 are installed. As shown in FIGS. 1 and 3, the frame 13 of the original fabric supply device 11 includes a pair of left and right bottom frames 13 a, a pair of left and right columns 13 b, an upper frame 13 c that connects the upper ends of the columns 13 b, and a column 13 b. The lower frame 13d connecting the lower ends is formed into a stand shape.

  The left and right struts 13b are provided with five upper and lower arms 14 having different height levels at predetermined intervals and projecting forward (embroidery machine 1 side), and a roll 15 in which an original fabric F is wound around the arm 14 having a selected height. Is supported by a rod 16. The rod 16 is provided with two positioning plates 17 that determine the position of the roll 15 in the left-right direction so that the position can be adjusted left and right. In the polymerization process such as quilting, a plurality of rolls 15 wound with raw materials F of different materials are supported by arms 14 having different heights.

  Brackets 18 are erected on the front ends of the left and right bottom frames 13 a, and a shaft 19 as a guide member is installed horizontally via bearings 20 between the upper ends of the brackets 18. The shaft 19 is provided with two restricting plates 21 for restricting the position of the original fabric F in the left-right direction so that the position can be adjusted left and right. The shaft 19 extends left and right below the surface level of the sewing machine table 5 on the embroidery machine 1 side from the roll 15, and the raw fabric F fed from the roll 15 is folded back and slackened below the sewing machine table 5. It is like that. In addition, the original fabric collection apparatus 12 is provided with a collection roll 23 that winds up the original fabric F and a gantry 24 that supports the collection roll 23.

  Next, operation | movement of the raw fabric supply apparatus 11 comprised as mentioned above is demonstrated. When the embroidery machine 1 processes the embroidery pattern on the original fabric F, as shown in FIG. 4A, the original fabric F rolls with the rear end of the sewing machine table 5 and rolls as the embroidery frame 6 moves in the left-right direction. 15 is pulled laterally. However, according to the raw material supply apparatus 11 of this embodiment, the shaft 19 loosens the raw material F on the lower side of the sewing machine table 5, so that the tension acting on the raw material F is relaxed by the loosening. Further, since the shaft 19 loosens the original fabric F in front of the roll 15, there is no possibility that the shaft 19 itself pulls the original fabric H during processing.

  For this reason, as shown in FIG. 4B, when the original fabric F is removed from the embroidery frame 6 and re-stretched during the processing of the next region, wrinkles are unlikely to occur in the original fabric F inside the embroidery frame 6. Become. Further, since the original fabric F is pulled by the weight of the portion hanging from the sewing machine table 5, when the original fabric F is removed from the embroidery frame 6, the original fabric F is automatically tensioned inside the embroidery frame 6. Therefore, the operator can complete the correction work accompanying the re-stretching easily and in a short time, and can efficiently process the embroidery pattern in the subsequent area of the original fabric F.

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 shaft 19 is provided so as to be position-adjustable in the front-rear direction with respect to the frame 3 so that the folding point of the original fabric can be changed according to the type and thickness of the original fabric F.
(2) The shaft 19 is supported by the frame 13 so as to be movable in the vertical direction, the front-rear direction, or both directions so that the movement of the original fabric during processing can be followed.
(3) A plurality of shafts 19 are juxtaposed in the front-rear direction or the vertical direction.

It is a top view of an embroidery machine and an original fabric supply device showing an example of the present invention. FIG. 2 is a right side view of the embroidery machine and the fabric supply device of FIG. 1. It is a front view of the original fabric supply apparatus of FIG. It is operation | movement explanatory drawing of the original fabric supply apparatus of FIG. It is a side view which shows the conventional original fabric supply apparatus. It is operation | movement explanatory drawing of the original fabric supply apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Embroidery machine 5 Sewing machine table 6 Embroidery frame 11 Raw material supply apparatus 13 Frame 15 Roll 19 Shaft

Claims (2)

  A part of the original fabric is attached to the embroidery frame, the embroidery frame is driven back and forth and left and right on the sewing machine table, the embroidery pattern is processed in one area of the original fabric, and then the original fabric is attached again to the embroidery frame. An embroidery machine that sequentially processes an embroidery pattern in a region of the embroidery machine, a device for continuously supplying the original fabric to the embroidery machine, a frame for supporting a roll around which the original fabric is wound, and an original fabric fed from the roll An apparatus for supplying a raw material for an embroidery machine, comprising: a guide member for slackening at a position lower than the surface level of the sewing machine table.   The raw material supply apparatus of the embroidery machine according to claim 1, wherein the guide member is provided on the frame between the roll and the embroidery machine.

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