JP2826844B2 - Cloth holding frame for sewing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION INDUSTRIAL APPLICABILITY The present invention relates to a method for manufacturing a bulk container for unloading cereals, for example. The present invention relates to a cloth holding frame for a sewing machine that can be used when sewing a part.

[Conventional technology]

Conventionally, when sewing the ends of the plurality of hanging strings to the cloth as described above, a sewing manufacturer attaches one end of one hanging string to a predetermined place in the cloth, and The end is sewn with a sewing machine while maintaining the attached state. Such a work is performed by repeating each end.

[Problems to be solved by the invention]

In this conventional means, skill is required to correctly position the end portion of the hanging string with respect to the cloth and perform sewing while maintaining the state, and further, there is a problem that workability is extremely poor.

In order to solve the above problems, a receiving stand for placing the cloth and a holding frame for pressing the cloth are prepared, and the end of the hanging string is positioned with respect to the receiving stand. A cloth holding frame for a sewing machine has been provided in which a concave portion to be formed is formed in advance and can be positioned (for example, see Japanese Utility Model Application Laid-Open No. 62-13475).

In the above-mentioned cloth holding frame for sewing machine, it is very convenient to attach one end of one hanging string to one cloth. However, in the case where the ends of a plurality of suspension strings are sewn at predetermined intervals using a multi-head sewing machine at a plurality of locations on one piece of cloth, the following problems occur. As a first step of the procedure, first, the ends of the hanging strings are distributed to the concave portions that determine the positions of the ends of the plurality of hanging strings. Next, a piece of cloth is covered on them, and the cloth is moved left and right, back and forth, and the work of determining the position and the work of extending wrinkles are performed. In this case, since the ends of the hanging strings placed in the plurality of concave portions are not visible, there is a problem that even if the end of the hanging string is displaced from the fixed position, it cannot be found.

Next, the holding frame is lowered, and the ends of the respective hanging straps and the cloth are fixed together. However, in order to prevent misalignment, the concave portion may be lowered as shown in the drawing, or the end of the hanging strap may be fixed. If the thickness of the cloth is thin, there is a problem that the upper cloth is depressed by an amount corresponding to the dimension. When the cloths are respectively depressed at the end attachment portions of the respective suspending strings, the cloths are successively drawn to one side and moved slightly, and after sewing, the ends of the suspending strings are sewn to unexpected places. Problems arise.

The present invention has been made in order to solve the above problems, and the purpose thereof is to enable even an unskilled worker to
The cloth can be spread flat and the flattened cloth can be first fixed as it is, and as another alternative, the ends of the plurality of hanging straps are correctly positioned at the exact position of the cloth, and easily positioned. An object of the present invention is to provide a cloth holding frame for a sewing machine which can be sewn at a correct position.

[Means for solving the problem]

The present invention relates to a cradle for use by being mounted on a table of a multi-head sewing machine so as to be able to move laterally, and a cradle having an upper surface for mounting a cloth, and connected to the cradle so as to be vertically movable. And a holding frame having a lower surface for holding the cloth, wherein the receiving table is provided with a plurality of windows for passing a plurality of needles in the multi-head sewing machine, respectively.
The holding frame is provided with a suspending string holding portion at a position corresponding to each of the windows. In each of the suspending string holding portions, a missing portion for passing a needle in the multi-head sewing machine, After the cloth placed on the upper surface is pressed by the lower surface of the holding frame, a holding body for holding the edge of the end of the hanging string placed in the lacking portion is provided.

[Action]

The cloth is placed on the cradle in a spread state, the cloth is correctly spread in the placed state, and the spread state is fixed by the holding frame.
On the other hand, for the presser frame that is fixed with the cloth spread,
Thereafter, the ends of the plurality of hanging strings are attached to the plurality of hanging string holders provided therein. As a result, the ends of the plurality of hanging strings are correctly positioned at predetermined sewing positions with respect to the cloth. Sew in that state.

〔Example〕

Hereinafter, drawings showing an embodiment of the present application will be described. First
1 and 2, reference numeral 1 denotes a sewing machine, and reference numeral 2 denotes a cloth holding frame used in the sewing machine. The sewing machine 1 has a well-known configuration. Reference numeral 3 denotes a table, which is provided with a plurality of needle plates 4 each having a needle hole 4a. Reference numeral 5 shown in FIG. 4 denotes a machine frame suspended above the table 3, and a sewing machine head 6 is mounted above the needle plate 4, respectively. Numeral 7 denotes a sewing needle provided on each head, and numeral 8 shown in FIG. 9 also denotes a cloth presser. Numerals 10 shown in FIGS. 4 and 9 indicate a plurality of shuttles, each of which is arranged in parallel below the above-mentioned needle plate 4. Needle plate 4, sewing machine head 6, shuttle
10 and the like are provided with a number corresponding to the number of attachments of the ends of the hanging string to the cloth, respectively (in the case of this example, there are four hanging strings,
Each is provided with eight sets, but only half are shown in the figure).

Next, the cloth holding frame 2 will be described. In FIGS. 1 and 3, reference numeral 12 denotes a receiving table on which the cloth A is placed, and reference numeral 13 denotes a holding frame for fixing the cloth A placed on the receiving table 12 to the receiving table 12. Reference numeral 14 denotes a plurality of hanging string holders provided on the holding frame, and end portions B ′ of the plurality of hanging strings B are respectively sewn to the cloth A fixed on the receiving table 12 by predetermined sewing. This is for holding at a position, that is, a position where each hanging string B comes to a predetermined place when the bulk container is formed by the cloth A. This hanging strap holder 14 is a hanging strap B
(In this example, the number of the hanging straps B is four).
Therefore, the number of the hanging strap holders 14 is eight. 1 and 3, only half of which is shown). The number of the hanging strings B may be larger or smaller.

Next, the receiving table 12 will be described. Reference numeral 16 denotes a movable frame, which is known as an embroidery frame in an embroidery sewing machine, and is indicated on the table 3 by a drive mechanism provided for the sewing machine 1 in a front-rear direction and an arrow opening shown by an arrow A in FIG. You can move in the left and right direction. As is well known, the movable frame can be freely attached to and detached from the drive mechanism. Reference numeral 17 denotes a receiving plate, the edge of which is attached to the movable frame 16 as shown in FIGS. 5 and 6, and the center of which is recessed so as to be close to the table 3 as shown in FIG. Reference numeral 18 shown in FIG. 3 denotes a window formed in the receiving plate 17, and is a portion for exposing a sewing portion of the cloth A. Reference numeral 19 shown in FIG. 3 is a stopper for positioning the cloth, and as shown in FIGS.
On the other hand, it is configured to be able to move up and down by being attached to the reciprocating rod of the cylinder 21 attached with the attachment piece 20.

Next, the holding frame 3 will be described. Reference numeral 24 shown in each of the first to third drawings denotes a main body, which is constituted by a reclining frame 25 and a pressing plate 26 attached to the lower surface thereof as shown in those drawings and FIGS. In FIG. 3, reference numeral 27 denotes a mounting piece mounted on the recumbent frame 25, and reference numeral 28 denotes an elevating cylinder mounted on the movable frame 16, and the mounting piece 27 is mounted on a reciprocating rod thereof. , The presser frame 13 is moved up and down. Next, 30 shown in FIGS.
Is a take-out plate attached to the lying frame 25, the lower surface of which is flush with the lower surface of the holding plate 26. Reference numeral 31 denotes a window formed in the take-out plate 30, which is used to confirm introduction of the cloth A below the take-out plate 30 and to handle the cloth at the time of the introduction. Incidentally, reference numerals 29 and 32 shown in FIG. 5 denote guide pieces, respectively, for guiding the introduction of the cloth A. Reference numeral 33 denotes a reinforcing piece, the base of which is fixed to the reclining frame 25, and the tip of which is connected to the tip of the take-out plate 30 so as to reinforce the take-out plate 30 and prevent its bending.

Next, the hanging strap holder 14 will be described with reference to FIGS. 36 is a missing portion formed in the take-out plate 30;
It is formed to open to the front of the vehicle. 37, 37 are a pair of left and right holding bodies provided along both right and left edges of the above-mentioned lacking portion 36, each of which is composed of a base body 38 and a receiving member 39 fixed thereto, and a holding groove 40 for holding a strap. have. 7th and 8th
Reference numeral 41 shown in the drawing denotes an introduction piece provided so as to be continuous with the entrance side of the holding groove 40, and is formed of the same material as the receiving member 39. 42 and 43 are guide surfaces formed on the base body 38 at the entrance side of the holding groove 40. These introduction pieces 41, guide surfaces 42, 4
Reference numeral 3 is provided for facilitating insertion of the hanging string B into the holding groove 40. Next, 44 is a holder for the take-out plate 30
This is a fixture for fixing 37, and is configured as shown in FIG. That is, in FIG. 10, reference numeral 45 denotes a screw rod, which is fixed to the take-out plate 30 by a nut 46, and which has a long hole 38a (formed in the left-right direction in FIG. Has been penetrated). 47 indicates a fastener screwed to the screw rod 45, and 48 indicates a washer. The fixing device 44 thus configured can freely tighten and loosen the holding member 37, and as shown in FIGS. 10 (A) and 10 (B), sets the distance between the left and right holding members 37, 37 at the end of the hanging cord B. It can be adjusted according to the width of B '. Next, reference numeral 50 shown in FIGS.
The stopper is attached to the lower surface of the hanging strap B to define the insertion depth of the end B 'of the hanging string B. Reference numeral 51 denotes a gauge attached to the take-out plate 30; 52, a gauge attached to the take-out plate 30 via a mounting seat 53; This is used when adjusting to the width of B '. These gauges 51, 52 are provided with the same scale from the center to the left and right sides as shown in the figure, and the center positions thereof are adjusted by adjusting the left and right holders 37, 37 to the same numerical scale. The distance can be adjusted without messing up.

Next, a plurality of hanging straps B are attached to the cloth A using the cloth holding frame 2.
The operation of sewing the end of the pattern will be described. First, as shown in FIG. 4, the cloth A is inserted from the rear side of the sewing machine 1 onto the receiving table 12 as shown in FIG. This insertion is performed until the front end of the cloth A comes into contact with the stopper 19, thereby positioning the cloth A with respect to the receiving table 12. In the case of this insertion, even if the rising position of the holding frame 13 is relatively low and the front end of the cloth A is wavy, the front end is guided by the guide pieces 29 and 32 and is caught by each part of the holding frame 13. Insertion can be performed without the need. If the cloth A has wrinkles in the inserted state, the hand is put through the window 31 to extend the wrinkles. Next, the presser frame 13 is lowered by the cylinder 28 to fix the cloth A to the receiving table 12. In this case, the body 24 of the presser frame 13
Firmly presses the cloth A in a range indicated by reference numeral 24a in FIG. In this case, the pressing of the cloth A by the take-out plate 30 is looser than the pressing by the main body 24. Accordingly, the left and right holding members 37, 37 of the hanging string holder 14 provided in the holding frame 13 hold the cloth A downward at the portion indicated by reference numeral 37a in FIG. 3 as shown in FIG. The pressed portion of the cloth A can be attached to the bulging portion 4b of the needle plate 4 as shown in FIG.

Next, the end portion B 'of the hanging string B is inserted into the holding groove 40 of the hanging string holder 14 as shown by reference numeral b in FIGS. I do.
As shown in FIGS. 9 and 10, the distance between the left and right holding bodies 37, 37 is set so that the left and right edges of the end B '
It is preferable that the end portion B 'of the hanging string B inserted into the holding groove 40 as described above does not easily come off. By performing the above operation on both end portions B ′ and B ′ of each hanging string B, the first
As shown in the figure, the end B 'of the hanging string B is correctly positioned with respect to the cloth A.

When the above state is reached, the sewing machine 1 is operated, that is, each shuttle 10 is rotated, each needle 7 is moved up and down, and the cloth holding hook 2 is moved back and forth and right and left to obtain the cloth A and the hanging string B. Is moved, so that each end B ′ of each hanging string B is, for example, the eleventh.
The cloth A is sewn with a seam C as shown in the figure. In this case, the control of the movement of the cloth holding frame 2 back and forth and right and left is performed in the same manner as in a well-known embroidery sewing machine.

Next, as an example of a different operation order, the attachment of the hanging string B to the hanging string holder 14 may be performed prior to the pressing of the cloth A by the pressing frame 13.

Next, in the above embodiment, since the arrangement pitch of the needle plate 4, the needle 4, the shuttle 10 and the like are the same as the arrangement pitch of the hanging string holder 14, all the end portions B 'are sewn simultaneously. . However, when the above-mentioned two pitches are different from each other, the sewing of each end B ′ may be individually performed after the entire hanging string B is attached to the cloth holding frame 2.

〔The invention's effect〕

As described above, according to the present invention, when it is desired to sew the ends B ′ of the plurality of hanging straps B to the cloth A, as a first step, the cloth A is placed on the cradle 12 and spread properly. Extend wrinkles,
In this state, there is a feature that only the non-wrinkled cloth that has been spread flat by the holding frame 13 can be fixed.

Then, in a second stage, by attaching the end portions B ′ of the plurality of hanging strings to the hanging string holders 14 of the holding frame 13 irrespective of the cloth already fixed by the holding frame 13,
Since the end portions B 'of the plurality of hanging straps can be correctly positioned with respect to the cloth A spread on the cradle 12, even an unskilled worker can spread the cloth correctly, and moreover, the spread cloth can be used. Has the effect of enabling the hanging string end B 'to be sewn to the correct place without error.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a perspective view showing a use state of a cloth holding frame (a sewing head is not shown). FIG. 2 is a sectional view taken along the line II-II in FIG. Plan view,
FIG. 3 is an exploded perspective view of FIG. 1, FIG. 4 is a schematic vertical sectional view showing the inserting direction of the cloth and the hanging string (a schematic vertical sectional view taken along line IV-IV in FIG. 1), 5 is a cross-sectional view taken along the line VV of FIG. 1 in a state before fixing the cloth, FIG. 6 is a cross-sectional view at the same position as FIG. 5 showing a state in which the cloth is fixed, and FIG. FIG. 8 is a perspective view of the cord holder, and FIG.
FIG. 9 is a sectional view taken along line IX-IX in FIG. 7;
FIG. 10 is a sectional view taken along the line XX in FIG. 7, and FIG. 11 is a view showing a state in which the end of the hanging string is sewn to the cloth. A: Cloth, B: Hanging string, B ': End, 12: Cradle, 13
… Presser frame, 14… Hanging string holder.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) D05B 39/00 D05B 35/06

Claims (1)

(57) [Claims] 1. A receiving table for use by being mounted on a table of a multi-head sewing machine so as to be movable in a lateral direction, the receiving table having an upper surface on which a cloth is placed, and a vertically movable table with respect to the receiving table. A holding frame having a lower surface for being connected and pressing the cloth, wherein the receiving table is provided with a plurality of windows for passing a plurality of needles in the multi-head sewing machine, respectively. The holding frame is provided with a suspending string holding portion at a position corresponding to each of the windows. In each of the suspending string holding portions, a missing portion for passing a needle in the multi-head sewing machine, A holding member for holding an edge of an end of the hanging string placed in the lacking portion after the cloth placed on the upper surface is pressed by the lower surface of the holding frame. Cloth holding frame.