JP4135333B2 - Frame drive device for embroidery machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a frame driving device for an embroidery machine.
[0002]
[Prior art]
For example, as is well known, as disclosed in Japanese Patent Laid-Open Nos. 11-189966 and 11-172567, the frame drive device of the conventional embroidery machine has an embroidery frame that is separated by an independent drive mechanism. Then, a predetermined embroidery is performed on a work to be embroidered that is driven in two orthogonal directions and spread on an embroidery frame.
[0003]
[Problems to be solved by the invention]
In the embroidery machine, the size of the embroidery object is generally determined by the process of the embroidery frame. On the other hand, in the market, the object is enlarged, and the muffler is changed from a simple accessory such as a shirt, towel, handkerchief. It is diversifying from long ones like Indian sari to heavy ones such as leather belts, leather jackets, notebooks and decorative flags. However, since the maximum stroke of the embroidery frame is fixed in the frame driving device of the conventional embroidery machine described above, various types of embroidery machines have been used as a sewing company in order to cope with such diversification of embroidery objects. Had to be introduced. This required a large amount of invested capital, and was a pain for small and medium businesses. Even if a large amount of capital can be invested and various embroidery machines can be introduced, there are many problems such as difficulty in securing the installation location and the prospect of depreciation due to the low operating rate. It was.
[0004]
Therefore, an object of the present invention is to provide a frame driving device for an embroidery machine that makes the stroke of the embroidery frame variable.
[0005]
[Means for solving the problems]
Means taken in the present invention to solve the above-mentioned problems are as follows: “a drive unit in which an embroidery frame is detachably mounted and the embroidery frame is moved in a first direction with respect to the machine bed by the drive means; and the drive means And a pair of moving means that move in a second direction perpendicular to the first direction with respect to the sewing machine bed by a driving means independent from the sewing machine bed, wherein the pair of moving means includes a body of the drive unit. The one end portion and the other end portion constitute a frame driving device for an embroidery machine that is detachably fixed by screws .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be specifically described with reference to embodiments.
[0007]
1 to 4, the embroidery machine 10 includes a sewing machine bed 12. The horizontal tip of the arm 14 erected from the sewing machine bed 12 is a sewing portion 16.
[0008]
The sewing machine bed 12 is provided with a pair of moving bodies 20 that move in the Y direction. The pair of moving bodies 20 are connected to a motor (not shown). When the motor rotates in one direction (the other), the pair of moving bodies 20 are synchronized to move to one side (the other side) in the Y direction. It has become. Since the linkage mechanism between the pair of moving bodies 20 and the motor is well known, its description is omitted.
[0009]
One end and the other end of the main body 32 of the drive unit 30 are detachably fixed to the pair of moving bodies 20 by screws 34, respectively. Since the drive unit 30 holds the embroidery frame 36 so as to be movable in the X direction (described later), the embroidery frame 36 is moved by the moving body 20 in addition to the movement in the X direction with respect to the sewing machine bed 12. As the drive unit 30 moves in the Y direction, the drive unit 30 is also moved in the Y direction.
[0010]
The drive unit 30 will be described in detail. The main body 32 of the drive unit 30 extending in the X direction includes a standing wall 32a and a lower wall 32b. A spline shaft 42 integral with the pulley 40 is mounted in one end portion of the main body 32 so as to be integrally rotatable. On the other hand, a spline shaft 44 is rotatably mounted in the other end portion of the main body 32. It is built. A flat belt 48 is installed between the rotating shaft of the motor 46 installed adjacent to one end of the main body 32 and the pulley 40. When the motor 46 rotates, the pulley 40 and the spline shaft 42 are integrated. Rotate. A toothed belt 52 is provided between the spline shaft 42 and the spline shaft 44.
[0011]
On the lower wall 32b of the main body 32 of the drive unit 30, a rail 54 extending in the X direction is fixed. A pair of cart units 60 and 60 (only one is shown) is slidably mounted on the rail 54. Therefore, the standing wall 62a of the frame holding body 62 fixed on the pair of carriage units 60 is connected to the toothed belt 52 via the interposition body 56 by the screw 90, and the spline shaft 42 is connected to one side ( When rotated to the other side, the frame holder 62 and the pair of carriage units 60 and 60 are moved integrally to the other side along the rail 54.
[0012]
The frame holder 62 includes a forward projecting portion 62b. A member 66 is positioned below the front overhanging portion 62b, and the frame support frame 70 sandwiched between the front overhanging portion 62b and the member 66 is fixed with a screw 64, whereby the frame support frame is fixed. 70 is integrated with the frame holder 62. Thus, the embroidery frame 36 is detachably attached to the frame support frame 70.
[0013]
In the configuration described above, the embroidery frame 36 moves to one side (the other side) in the X direction with respect to the main body 32 of the drive unit 30 as the motor 46 rotates in one direction (the other direction). Further, the main body 32 of the drive unit 30 moves integrally with the moving body 20 to move to one side (the other side) in the Y direction as the other motor rotates in one direction (the other direction). As the other motor rotates in one direction (the other direction), it moves to one side (the other side) in the Y direction. Thus, the embroidery frame 36 is independently moved in the X direction and the Y direction, and predetermined sewing is performed. The embroidery frame 36 has a maximum stroke in the X direction defined by the length of the rail. However, since the drive unit 30 is detachable from the moving body 20, By exchanging, the embroidery frame 36 can extend the maximum line in the X direction, and can easily cope with diversification of embroidery objects.
[0014]
In addition, by expanding the span d of the carriage units 60 and 60, the load of the torque T generated when the frame 2 reciprocates in the X direction is reduced, and the rigidity and strength are improved.
[0015]
【The invention's effect】
As described above, according to the present invention, the drive unit 30 can be easily replaced, so that the embroidery frame 36 can be configured according to the embroidery object with different stroke amount, strength and rigidity. The production cost of the embroidery machine itself can be reduced by standardizing common parts. In addition, since embroidery objects can be flexibly adapted to small ones, long ones, and ones with high sewing load, the capital investment of users for business use is also reasonable and the economic effect can be high. it can.
[Brief description of the drawings]
FIG. 1 is an external perspective view of an entire embroidery machine according to the present invention.
FIG. 2 is a perspective view showing a mounting state of an embroidery frame.
FIG. 3 is an explanatory view of the internal structure of the drive unit as seen from the motor side.
FIG. 4 is an explanatory diagram of an internal structure in a central portion of the drive unit.
[Explanation of symbols]
12 Sewing bed 20 Moving body (moving means)
30 Drive unit 36 Embroidery frame 46 motor (drive means)

Claims (1)

A drive unit in which the embroidery frame is detachably mounted and the drive means moves the embroidery frame in the first direction with respect to the sewing machine bed;
A pair of moving means that move in a second direction perpendicular to the first direction with respect to the sewing machine bed by a driving means independent of the driving means;
A frame driving device for an embroidery machine , wherein one end and the other end of the main body of the drive unit are detachably fixed to the pair of moving means by screws .

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