JP5101835B2 - Cylindrical frame for embroidery processing - Google Patents

Description

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

Conventionally, a sewing window is formed on a cylindrical support frame, a work cloth is attached to the sewing window via an interlining, and the support frame is moved in the front-rear direction by the frame drive mechanism of the embroidery machine and rotated about the axis in the front-rear direction. A technique for processing an embroidery pattern on a work cloth is known. In Patent Document 1, a long sewing window is formed on a cylindrical support frame in the front and rear, and an interlining covering the sewing window is held on the support frame by an interlining presser member that is longer than the sewing window. An embroidery sewing machine for attaching a cylindrical work cloth such as a wristband is described.
JP 2003-326049 A

  By the way, in this type of cylindrical frame, the embroidery range of the work cloth is determined by the size of the sewing window. Therefore, when processing the embroidery pattern long in the length direction of jeans, etc., the sewing window is adjusted to the length of the embroidery pattern. It is necessary to lengthen the support frame and the interlining pressing member. However, since the conventional cylindrical frame holds only the front and rear ends of the interlining pressing member on the support frame, if the interlining holding member is lengthened, the holding strength of the interlining is insufficient near the middle of the sewing window. Therefore, there is a problem that the interlining is deformed by the impact at the time of the needle drop, the work cloth is loosened and wrinkled, and the processing accuracy of the embroidery pattern is deteriorated.

  The object of the present invention is to solve the above-mentioned problems, and in a long cylindrical frame in which a long sewing window is formed on the support frame, the deformation of the interlining over the sewing window is prevented and the processing accuracy of the embroidery pattern is improved. The object is to provide a cylindrical frame that can be enhanced.

In order to solve the above-described problems, the tubular frame for embroidery processing of the present invention includes a cylindrical support frame to which a work cloth is attached, and a sewing window for determining an embroidery range of the work cloth is formed on the support frame. An interlining holding member that supports the work cloth along the outer surface of the support frame by an interlining covering the window, is formed longer than the sewing window with a strip steel plate, and presses the interlining onto the supporting frame. longitudinal pressing member against the support frame at an intermediate position and held on the support frame, the longitudinal direction intermediate portion only direct contact with the longitudinally intermediate portion of the sewing window of the interlining pressing member before and after both ends sewing window before and after pressed by the elastic itself's, the longitudinal direction intermediate portion is elastically deformed, and further comprising a pressing member bite into the claw formed on the longitudinal intermediate portion interlining.
Further, either one of the front and rear ends of the interlining pressing member may be fixedly held on the support frame, and the other end may be held openably and closably with respect to the support frame so that the interlining can be easily replaced. The pressing member may be attached to the support frame so as to be movable between a position overlapping the interlining pressing member and a position away from the interlining pressing member .

Here, the support frame is not limited to a specific shape, but for example, a long cylindrical member having a circular or polygonal cross section into which the bed of the embroidery sewing machine can be inserted can be used . It is also possible to implement by providing the left and right two interlining pressing member on both the left and right sides of the support frame.

Upon replacement of the core area, so as to be easily released the pressing force against the interlining pressing member, may moveably mounting the pressing member in the active position and the inactive position to the support frame. Further, the pressing member may be attached to the support frame so as to be rotatable or slidable. In addition, the pressing member may be pivotally attached to the support frame at an intermediate position in the longitudinal direction of the sewing window. The number of pressing members is not particularly limited, and may be one or more.

According to the tubular frame for embroidery processing of the present invention, the pressing member presses the longitudinal intermediate portion of the interlining pressing member against the support frame by the elasticity of the pressing member , elastically deforms the longitudinal intermediate portion, Since the nail | claw formed in the longitudinal direction intermediate part bites into the interlining, the retention strength of the interlining near the middle of the sewing window can be strengthened, and loosening of the interlining can be surely prevented. Therefore, even when the interlining presser member is lengthened when embroidering a long cylindrical work cloth, deformation of the interlining is prevented, and the work cloth is held along the outer peripheral surface of the support frame correctly, and the embroidery pattern is highly accurate. It has an excellent effect that it can be processed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 2, the tubular frame 2 for embroidery processing of this embodiment includes a cylindrical support frame 11 to which a work cloth 10 is attached. A sewing window 15 that determines the embroidery range of the work cloth 10 is formed in the support frame 11 so as to extend in the front-rear direction, and the work cloth 10 is supported along the cylindrical surface of the support frame 11 by an interlining 16 that covers the sewing window 15. .

  An interlining pressing member 22 that presses the interlining 16 against the supporting frame 11 is attached to the supporting frame 11, a rear end thereof is fixedly held by the supporting frame 11, and a front end is held releasably with respect to the supporting frame 11. Yes. At the intermediate position in the longitudinal direction of the sewing window 15, a pressing member 32 that presses the interlining pressing member 22 against the supporting frame 11 is separated from the interlining pressing member 22 and an operating position that overlaps the interlining pressing member 22. It is pivotally attached to the non-acting position.

  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 cylindrical frames 2 for embroidery processing which are long in the front and rear are arranged side by side on the inner side of the sewing frame 3, and the inner side of each cylindrical frame 2 is provided. A cylinder bed 4 is inserted. The sewing frame 3 is placed on the table 5 and driven in the front-rear direction by the linear drive mechanism 6. The table 5 is provided with guide rollers 7 for guiding the left and right sides of the sewing frame 3, and a rotational drive mechanism 8 for reciprocatingly rotating each cylindrical frame 2 around the axis of the cylinder bed 4 is disposed at the rear of the sewing frame 3. Has been. Refer to Patent Document 1 for details of the rotation drive mechanism 8.

  As shown in FIGS. 2 and 3, the cylindrical frame 2 includes a cylindrical support frame 11 to which a long cylindrical work cloth 10 such as jeans is attached. A mounting portion 12 is provided at the rear end of the support frame 11 to be attached to the rotational drive mechanism 8, and a shaft portion 14 supported by the front bracket 13 (see FIG. 1) of the sewing frame 3 projects from the front end surface of the support frame 11. It is installed. A sewing window 15 that determines the embroidery range of the work cloth 10 is formed in the front and back direction on the upper surface of the support frame 11, and the work cloth 10 extends along the cylindrical surface of the support frame 11 by the interlining 16 that covers the sewing window 15. Supported. The interlining 16 is made of a relatively rigid material such as thick paper or nonwoven fabric that can hold the shape of the work cloth 10.

  A pair of left and right strips 17 are fixed to the outer peripheral surface of the support frame 11 so as to extend along the longitudinal edge of the sewing window 15, and a support member 18 is installed between the two strips 17. The support member 18 is formed in an arch shape so that the interlining 16 can be supported in the same cylindrical surface as the support frame 11, and a position in the front-rear direction is selected in the screw hole 21 of the strip 17 with a screw 20 at the mounting portion 19. It is attached as possible. Then, the interlining pressing member 22 is disposed below the left and right strips 17, and the interlining 16 is pressed against the support frame 11 by the interlining pressing member 22, and the interlining 16 is prevented from loosening by the strips 17. (See FIG. 5b).

  As shown in FIGS. 3 and 4, the interlining pressing member 22 is made of a strip steel plate and is longer than the sewing window 15, and includes a mounting piece 24 at the rear end and a latching piece 27 at the front end. The attachment piece 24 is attached to the flange portion 26 of the support frame 11 with a screw 25, and the rear end of the interlining pressing member 22 is fixedly held on the support frame 11. The latching piece 27 is elastically latched to the front end cutout portion 28 of the support frame 11 and holds the front end of the interlining pressing member 22 so as to be openable to the support frame 11. Claws 30 are formed by incisions 29 at many locations in the longitudinal direction of the interlining pressing member 22, and the pawls 30 bite into the interlining 16 with the retaining pieces 27 closing the front end of the interlining pressing member 22. The interlining 16 is firmly held on the support frame 11.

  A pressing member 32 is provided below the left and right interlining presser members 22 at an intermediate position in the longitudinal direction of the sewing window 15. The pressing member 32 is formed in a strip shape by a leaf spring, the base end is pivotally attached to the support frame 11 with a screw 33 and a nut 34, and the pressing portion presses the intermediate portion of the interlining presser member 22 to the support frame 11 at the distal end portion. 35 is bent. Then, by the operation of the operator, the pressing member 32 is separated from the working position where the pressing portion 35 overlaps the outer surface of the interlining pressing member 22 (solid line position shown in FIG. 3) and the pressing portion 35 downward from the interlining pressing member 22. It is rotated in the front-rear direction to the non-acting position (chain line position shown in FIG. 3).

  In the cylindrical frame 2 having the above-described configuration, when an embroidery pattern is processed on a long cylindrical work cloth 10 such as jeans, first, as shown in FIG. 5A, the pressing member 32 is rotated to the non-operating position. Then, the interlining pressing member 22 is opened, and the interlining 16 is put on the sewing window 15. Next, as shown in FIG. 5B, the interlining pressing member 22 is closed, and the interlining 16 is sandwiched between the interlining pressing member 22 and the support frame 11. Then, the pressing member 32 is rotated to the operating position, the intermediate portion of the interlining pressing member 22 is pressed against the support frame 11 by the pressing portion 35, the interlining pressing member 22 is elastically deformed, and the claw 30 is moved to the interlining 16. To eat. By doing so, the interlining 16 can be firmly held on the support frame 11 by the elasticity of the pressing member 32 at the intermediate position in the longitudinal direction of the sewing window 15.

  Subsequently, the work cloth 10 is put on the interlining 16, and the work cloth 10 and the interlining 16 are fastened to the support frame 11 together with the interlining pressing member 22 with the band 36 (see FIG. 3). The ridge 37 (see FIG. 4) protruding from the lower surface of the support frame 11 is sandwiched and held by a clip (not shown). Thereafter, the support frame 11 is attached to the sewing frame 3 and the embroidery sewing machine 1 is activated to process an embroidery pattern that is long in the length direction on the work cloth 10. At this time, since the interlining 16 is firmly held by the support frame 11 by the pressing member 32, there is no possibility that the interlining 16 is deformed by an impact at the time of needle drop. Therefore, the work cloth 10 can be held in a regular cylindrical shape by the interlining 16 and the embroidery pattern can be processed with high accuracy.

  6 and 7 show a second embodiment of the present invention. The embroidery cylindrical frame 41 is different from the first embodiment in the configuration of the support frame 42. The support frame 42 is provided with three sewing windows 43, 44, 45 and three reinforcing walls 46, 47, 48 on the cylindrical peripheral wall so as to extend in the front-rear direction. The first sewing window 43 is formed to be approximately the same size as the sewing window 15 of the first embodiment, and the second and third sewing windows 44 and 45 are formed on the left and right objects in a smaller area than the first sewing window 43. . The first reinforcing wall 46 and the second reinforcing wall 47 are provided with the same interlining pressing member 22 as in the first embodiment, and the pressing member 32 that presses the intermediate portion of the interlining pressing member 22 is the third reinforcing wall 48. The support piece 49 is rotatably supported.

  According to the configuration of the second embodiment, since the three sewing windows 43, 44, 45 and the same number of reinforcing walls 46, 47, 48 are formed on the support frame 42, the strength is reduced in the long cylindrical frame 41. The supporting frame 42 can be reduced in weight without causing it. Further, since the three sewing windows 43, 44, 45 form a large opening as a whole in the circumferential direction of the support frame 42, the respective sewing windows 43, 44, 45 are sewn on the embroidery sewing machine 1 by the rotational drive mechanism 8. By selectively determining the position, the embroidery range of the support frame 42 can be greatly expanded. Therefore, there is an advantage that an embroidery pattern that is long in the length direction can be easily processed in various places in the circumferential direction without re-working the work cloth 10.

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.
(A) The interlining pressing member 22 shown in FIG.
(B) The interlining presser member 22 is held on the support frame 11 so as to be turnable left and right or up and down by a rear end shaft.
(C) The front end of the interlining presser member 22 is fixedly held on the support frame 11, and the rear end of the interlining presser member 22 is held releasably with respect to the support frame 11.
(D) Two or three pressing members 32 shown in FIG. 2 are provided within the length range of the sewing window 15.

It is a top view of the embroidery sewing machine which shows Example 1 of the present invention. It is a perspective view which shows the cylindrical frame for embroidery processing of the embroidery sewing machine of FIG. It is a side view of the cylindrical frame of FIG. It is a front view of the cylindrical frame of FIG. It is sectional drawing which shows the procedure when hold | maintaining an interlining to the cylindrical frame of FIG. It is a side view of the cylindrical frame which shows Example 2 of this invention. It is the VII-VII sectional view taken on the line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Embroidery sewing machine 2 Cylindrical frame for embroidery processing 10 Work cloth 11 Support frame 15 Sewing window 16 Interlining 22 Interlining pressing member 32 Pressing member 41 Cylindrical frame for embroidery processing 42 Support frames 43, 44, 45 Sewing windows 46, 47 , 48 Reinforcement wall

Claims (3)

A cylindrical support frame (11, 42) to which the work cloth (10) is attached is formed, and a sewing window (15, 43) for determining an embroidery range of the work cloth (10) is formed on the support frame (11, 42). The work cloth (10) is supported along the outer surface of the support frame (11, 42) by the interlining (16) covered with the sewing window (15, 43), and is more than the sewing window (15, 43) by the strip steel plate. It is formed long and includes an interlining pressing member (22) that presses the interlining (16) against the support frame (11, 42), and both front and rear ends of the interlining pressing member (22) are arranged before and after the sewing window (15, 43). was held on the support frame (11, 42), the support frame in a longitudinally intermediate position in the longitudinal direction intermediate portion only direct contact with the longitudinally intermediate portion of the sewing window (15, 43) of the interlining pressing member (22) pressed by the elastic held by the pressing member (32) itself against the (11, 42), said longitudinal intermediate The is elastically deformed, said longitudinal intermediate portion formed pawl (30) embroidery machining cylindrical frame, characterized in that a pressing member (32) to bite into interlining (16).   Either one of the front and rear ends of the interlining pressing member (22) is fixedly held on the support frame (11, 42), and the other end is held releasably with respect to the support frame (11, 42). The embroidery processing cylinder according to claim 1, wherein 32) is attached to the support frame (11, 42) so as to be movable between a position overlapping the interlining pressing member (22) and a position away from the interlining pressing member (22). frame.   3. The embroidery process according to claim 2, wherein the pressing member (32) is movably attached by being pivotally attached to a support frame (11, 42) at an intermediate position in the longitudinal direction of the sewing window (15, 43). A cylindrical frame.

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