JP2004344479A - Embroidery sewing machine for industrial use - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate the disassembly and the assembly of an embroidery sewing machine on delivery by making a front x-driving mechanism removable along with a table. <P>SOLUTION: In this sewing machine, a table 10 is divided into a back table 10A which is supported by a sewing machine frame 1 and a front table 1B which is overhanging the machine frame 1, being supported in a way that it can be separated from the machine frame 1. A sewing frame 9 for holding a cloth to be worked on is disposed on the table 1. Three X-driving mechanisms 21 arranged in the lateral direction move the sewing frame from side to side via an X-feeding frame 20, while three Y-driving mechanisms 23 arranged in the longitudinal direction move it back and forth via an Y-feeding frame 22. Among the X-driving mechanisms 21, the nearest one is attached to the front table 10B, whereas the rest of them and all the Y-driving mechanism 23 are placed on the back table which is supported by the sewing machine frame 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an industrial embroidery sewing machine for performing an embroidery process by driving a sewing frame holding a work cloth on a table back and forth and left and right.
[0002]
[Prior art]
Patent Document 1 describes an industrial embroidery sewing machine as shown in FIG. The machine frame of the embroidery sewing machine is provided with a base 51 that is long in the vertical direction and a base 52 that is long in the horizontal direction. One table 53 is provided above the bases 51 and 52, and a sewing frame 54 for holding a work cloth is arranged on the table 53. Then, the sewing frame 54 is driven in the left-right direction by the X drive mechanism 55 and is driven in the front-rear direction by the Y drive mechanism 56.
[0003]
The X drive mechanism 55 is installed on a vertical base 51 with two front and rear units arranged in parallel. The Y drive mechanism 56 is installed on the horizontal base 52 with three right and left units arranged in parallel. According to this configuration, since the X drive mechanism 55 and the Y drive mechanism 56 apply a driving force to a plurality of portions on the vertical side and the horizontal side of the sewing frame 54, respectively, the large sewing frame 54 can be processed without being deformed. The cloth can be sent accurately.
[0004]
[Patent Document 1]
JP-A-1-239152 [0005]
[Problems to be solved by the invention]
By the way, in this type of embroidery sewing machine, when the depth of the table 53 is longer than the frontage of the transport container, it is necessary to remove the table 53 at the time of product delivery and reduce the packing size. In particular, in the case of a model that drives a sewing frame having a long vertical dimension with a large stroke, the front X drive mechanism 55 is located at the front end of the stroke in the Y direction. The mechanism 55 also needs to be removed. However, according to the conventional embroidery sewing machine, since the X drive mechanism 55 is attached to the base 51, it is troublesome to separate the table 53 and the X drive mechanism 55 separately. There was a problem.
[0006]
An object of the present invention is to provide an industrial embroidery sewing machine which solves the above-mentioned problem and which can remove an X drive mechanism together with a table and can easily perform disassembly and assembly work at the time of delivery. .
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides a sewing frame for holding a work cloth on a table, a plurality of front and rear X drive mechanisms for driving the sewing frame in the left and right direction, and driving the sewing frame in the front and rear direction. In an industrial embroidery sewing machine having at least one Y drive mechanism, the table is divided in the front-rear direction, the rear table is supported on the sewing machine frame, and the front table is extended forward from the sewing machine frame. The apparatus frame is detachably supported, at least one X drive mechanism is mounted on the front table, and the remaining X drive mechanism and Y drive mechanism are installed on the sewing machine frame on the rear table side. I do.
[0008]
Here, the number of X drive mechanisms is not particularly limited, and may be two, three, four, or more in the front-rear direction. One or two X drive mechanisms are suitably mounted on the front table. The number of Y drive mechanisms may be two, three, four, or more in the left-right direction, or one at the center. Further, as a driving method of the sewing frame, a method of directly driving the sewing frame by the X drive mechanism and the Y drive mechanism or a method of indirectly driving the sewing frame can be adopted.
[0009]
In particular, the indirect drive method is preferable in that a large sewing frame can be driven with a large stroke with high accuracy. Specifically, an X feed frame long in the front-rear direction is interposed between the sewing frame and the X drive mechanism, the sewing frame is supported on the X feed frame so as to be movable in the front-rear direction, and the traveling body of the X drive mechanism is moved in the X direction. The Y frame is connected to the feed frame, and a Y feed frame long in the left and right direction is interposed between the sewing frame and the Y drive mechanism. The sewing frame is movably supported on the Y feed frame in the left and right direction. It may be connected to the Y feed frame.
[0010]
In this case, in order to prevent deformation of the Y feed frame, it is preferable to install a plurality of Y drive mechanisms in the left-right direction. In addition, it is preferable that a part of the two embroidery machines be three-dimensionally crossed from the viewpoint that mutual interference between the Y drive mechanism and the X drive mechanism can be avoided without extending the length of the embroidery sewing machine in the left-right direction. Specifically, in an industrial embroidery sewing machine having a plurality of front and rear X drive mechanisms and a plurality of left and right Y drive mechanisms, a Y drive mechanism that intersects the X drive mechanism is placed on the sewing machine frame above the rear table. It is possible to adopt a method of installing the remaining Y drive mechanism on the sewing machine frame below the rear table.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, in the industrial embroidery sewing machine of this embodiment, a sewing machine frame 1 includes a pair of left and right leg frames 2, one upper frame 3, and three lower frames 4. It is composed of Two heads 5 are arranged side by side on the upper frame 3, two beds 6 are installed on the front lower frame 4, and a needle plate 8 having a needle drop hole 7 is attached to the bed 6. A table 10 is provided at the same height as the needle plate 8, and a sewing frame 9 for holding a work cloth is arranged on the table 10.
[0012]
As the sewing frame 9, for example, a large square frame having a side of 1.8 m is used. The table 10 is divided into two parts in the front-rear direction, and includes a rear table 10A and a front table 10B. The rear table 10A is formed in a rectangular shape of, for example, 4.0 m in width × 2.1 m in height, and is horizontally supported on the lower frame 4 via a plurality of table receivers 11. The front table 10B is formed in a rectangular shape of, for example, 4.0 m in width and 1.6 m in height, and can be disassembled by a plurality of table receivers 12 with respect to the front lower frame 4 in a state of projecting forward of the sewing machine frame 1. Supported.
[0013]
The front end of the front table 10B is supported by a plurality of columns 13 on the floor. As shown in FIG. 6, the support 13 includes an adjusting foot 14 at a lower end and a mounting plate 15 at an upper end. The support 13 shown in FIG. 6A is detachably attached to the front table 10B by inserting and removing the attachment plate 15 into and from the slit 17 of the attachment base 16. The support 13 shown in FIG. 6B is detachably attached to the front table 10B by fitting and detaching the attachment plate 15 into the recess 32 of the attachment base 16. The mounting base 16 is fixed to a predetermined portion of the lower surface of the front table 10B in advance with a double-sided adhesive tape 18 or screws (both may be used). For this reason, at the delivery destination of the embroidery sewing machine, the support 13 can be easily attached to an appropriate position of the front table 10B indicated by the attachment base 16. Note that the number and mounting positions of the columns 13 are not limited to the example of FIG. 1 and may be increased or decreased or changed as needed.
[0014]
As shown in FIGS. 1 and 2, the sewing frame driving device includes three front and rear X drive mechanisms 21 for driving the sewing frame 9 in the left-right direction (X direction), and a portion between the sewing frame 9 and the X drive mechanism 21. One X feed frame 20 which is long in the front-rear direction, three Y drive mechanisms 23 for driving the sewing frame 9 in the front-rear direction (Y direction), and a portion between the sewing frame 9 and the Y drive mechanism 23 And one Y feed frame 22 that is long in the left-right direction and interposed between the two. The X feed frame 20 and the Y feed frame 22 intersect on the upper side of the table 10, the right side of the sewing frame 9 is supported by the X feed frame 20 so as to be movable in the Y direction, and the rear side of the sewing frame 9 is It is movably supported in the X direction. Then, the X traveling body 24 of the X drive mechanism 21 is connected to the X feed frame 20, and the Y traveling body 25 of the Y drive mechanism 23 is connected to the Y feed frame 22.
[0015]
Of the three X drive mechanisms 21, one on the front side is attached to the front table 10B, and the other two are installed on the lower frame 4 between the rear side and the lower side below the rear table 10A. One of the three Y drive mechanisms 23 on the right side that crosses the X drive mechanism 21 three-dimensionally is suspended above the rear table 10A at the front end by the bracket 19 at the front end and the rear end at the rear table 10A. Supported above. The left and middle Y drive mechanisms 23 are both mounted on the three lower frames 4 below the rear table 10A. Since both the X and Y drive mechanisms 21 and 23 have substantially the same configuration, the specific configuration of the X drive mechanism 21 on the front table 10B will be described below.
[0016]
As shown in FIGS. 3, 4, and 5, an opening 39 is formed at the front end of the front table 10B so as to extend in the X direction, and a rail base having substantially the same length as the opening 39 is provided to the X drive mechanism 21. 26 are provided. The rail base 26 is attached to the lower surface of the front table 10B via a spacer 28 by a plurality of brackets 27. The spacer 28 functions as a reinforcing material for preventing bending of the front table 10B, and is fixed to the front table 10B with bolts 29 together with the horizontal portion of the bracket 27. A vertically long hole 30 is formed in the vertical portion of the bracket 27, and the rail base 26 is assembled to the bracket 27 with a bolt 31 passing through the long hole 30 so that the height can be adjusted.
[0017]
On the rail base 26, a belt 35 is stretched between a driving pulley 33 on the right end and a driven pulley 34 on the left end, and the X traveling body 24 is coupled on the belt 35. A slider 37 is fixed to the X traveling body 24, and a rail 38 for guiding the slider 37 is laid on the upper surface of the rail base 26. The X traveling body 24 is connected to the X feed frame 20 by a connecting member 36, and the sewing frame 9 is supported on the rail portion 20a of the X feed frame 20 by a pair of plural sets of sandwiching rollers 40 so as to be movable in the Y direction. . The opening 39 is covered with a cover 41, and a slit 42 for exposing the connecting member 36 is formed in the cover 41.
[0018]
A pulley shaft 43 (see FIG. 3) of the drive pulley 33 is detachably connected to an X drive shaft 45 via a coupling 44. The X drive shaft 45 extends along the right edge of the table 10 (see FIG. 2) and is connected to an X motor 46 common to the three X drive mechanisms 21. Similarly, the three Y drive mechanisms 23 are connected to a common Y motor 48 via a Y drive shaft 47 extending along the rear edge of the table 10.
[0019]
During the operation of the embroidery sewing machine, the X motor 46 and the Y motor 48 are synchronously controlled based on the sewing data. Then, the sewing frame 9 is driven in the left-right direction by the X drive mechanism 21 via the X feed frame 20, and is driven by the Y drive mechanism 23 in the front-rear direction via the Y feed frame 22. At this time, the three X drive mechanisms 21 and the three Y drive mechanisms 23 respectively prevent the X feed frame 20 and the Y feed frame 22 from bending, and drive the sewing frame 9 evenly at three locations on the vertical side and the horizontal side. Apply force. Therefore, the large-sized sewing frame 9 can be sent at high speed and with high accuracy without deformation, and high-quality embroidery processing can be performed.
[0020]
When the embroidery sewing machine is delivered, the X drive shaft 45, the X feed frame 20, and the table receiver 12 are removed, and the front table 10B is disassembled from the sewing machine frame 1 as shown in FIG. In this case, since the front X drive mechanism 21 is removed together with the front table 10B, disassembly and assembly work at the time of delivery can be easily performed with a small number of man-hours. When the front table 10B is removed, the depth of the table 10 is reduced to the vertical dimension of the rear table 10A. In addition, since the right Y drive mechanism 23 crosses the two rear X drive mechanisms 21 in a three-dimensional manner, mutual interference between the two drive mechanisms 21 and 23 is avoided without extending the length of the embroidery sewing machine in the left-right direction. it can. Therefore, even in the case of an industrial embroidery sewing machine using the large embroidery frame 9, it is possible to reduce the packing size of the product and transport it in a standard container C at low cost.
[0021]
Note that the present invention is not limited to the configuration of the above-described embodiment, and may be embodied with appropriate modifications without departing from the spirit of the invention, for example, as described below.
(1) Two of the three X drive mechanisms 21 are mounted on the front table 10B, and one is installed on the sewing machine frame 1 on the rear table 10A side.
(2) One of the two X drive mechanisms 21 is attached to the front table 10B, and one is installed on the sewing machine frame 1 on the rear table 10A side.
(3) Two of the four X drive mechanisms 21 are mounted on the front table 10B, and two are mounted on the sewing machine frame 1 on the rear table 10A side.
(4) In addition, the number of the X drive mechanisms 21 and the number of the Y drive mechanisms 23 are appropriately changed according to the size and the stroke of the sewing frame 9.
(5) For both drive mechanisms 21 and 23, a drive system using a rack and pinion, a ball screw, a linear motor, or the like is adopted instead of the belt drive system.
[0022]
【The invention's effect】
As described in detail above, according to the industrial embroidery sewing machine according to the present invention, since at least one X drive mechanism is attached to the front table that can be disassembled, the X drive mechanism can be removed together with the table. Also, there is an excellent effect that the disassembling and assembling work at the time of delivery can be easily performed.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of an industrial embroidery sewing machine according to the present invention.
FIG. 2 is a plan view of the embroidery sewing machine of FIG. 1;
FIG. 3 is a plan view showing an X drive mechanism of the embroidery sewing machine.
FIG. 4 is an elevation view of the X drive mechanism of FIG. 3;
FIG. 5 is a sectional view taken along line VV of FIG. 4;
FIG. 6 is a cross-sectional view showing a mounting structure of the column shown in FIG. 1;
FIG. 7 is a plan view showing a packaging form of the embroidery sewing machine of FIG. 1;
FIG. 8 is a plan view showing a conventional industrial embroidery sewing machine.
[Explanation of symbols]
1 Sewing machine frame 5 Head 6 Bed 9 Sewing frame 10 Table 10A Rear table 10B Front table 13 Support 16 Mounting base 18 Double-sided adhesive tape 20 X feed frame 21 X drive mechanism 22 Y feed frame 23 Y drive mechanism 24 X traveling body 25 Y Traveling body 26 Rail base 27 Bracket

Claims (3)

A sewing frame for holding a work cloth is arranged on a table, and a plurality of front and rear X drive mechanisms for driving the sewing frame in the left-right direction and at least one Y drive mechanism for driving the sewing frame in the front and rear direction are provided. In industrial embroidery sewing machines,
The table is divided in the front-rear direction, the rear table is supported on the sewing machine frame, and the front table is supported so as to be disassembled with respect to the machine frame while projecting forward from the sewing machine frame. An industrial embroidery sewing machine, wherein an X drive mechanism is mounted, and the remaining X drive mechanism and Y drive mechanism are installed on a sewing machine frame on the rear table side. A long X feed frame in the front and rear direction is interposed between the sewing frame and the X drive mechanism, the sewing frame is supported on the X feed frame so as to be movable in the front and rear direction, and the traveling body of the X drive mechanism is connected to the X feed frame. A long Y feed frame in the left and right direction is interposed between the sewing frame and the Y drive mechanism, the sewing frame is supported on the Y feed frame so as to be movable in the left and right direction, and the traveling body of the Y drive mechanism is connected to the Y feed frame. The industrial embroidery sewing machine according to claim 1. A plurality of left and right Y drive mechanisms are provided, and a Y drive mechanism crossing the X drive mechanism is installed on the sewing machine frame above the rear table, and the remaining Y drive mechanisms are mounted on the machine frame below the rear table. The industrial embroidery sewing machine according to claim 2, which is installed.

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