JPS6140289Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a feeding path covering device for a feeding device in an embroidery sewing machine.

Conventionally, this type of embroidery sewing machine has a Y-direction feed arm 3 that is movable in the Y direction on a sewing machine table 2 and a Y-direction feed arm 3 that is movable in the X direction orthogonal to the Y direction, as shown in FIG. and an X-direction moving body 4,
By fixing the embroidery frame 6 to the drive frame 5 fixed to the X-direction moving body 4 and driving the embroidery frame 6 in the X and Y directions, embroidery is applied to the cloth in cooperation with the needle of the sewing machine. ing.

However, the Y-direction feed arm 3 is moved by covers 7, 7 provided on both sides of the Y-direction feed arm 3 to cover the guide shaft 3A and drive belt (not shown) that support the Y-direction feed arm 3. The feed path 8 must be opened, and tools placed on the sewing machine table 2 by mistake may get into the feed path 8 and cause the feed device to malfunction, or oil may scatter from the feed path 8 and damage the embroidery fabric. There were drawbacks such as adhesion and resulting in defective products.

This invention was made in view of these drawbacks, and the object is to provide a feeding path covering device for a feeding arm serving as a feeding device in the Y direction.

An embodiment of this invention will be described below based on the drawings.

Reference numerals 10 and 11 denote a pair of sprockets rotatably supported at a distance from each other on the machine frame 12; 13 a Y-direction drive belt wound around the sprockets 10 and 11; and 14 a Y-direction drive motor connected to the sprocket 10.

Reference numerals 15 and 16 denote guide shafts arranged parallel to each other at a distance from each other on both sides of the sewing machine table.One of the guide shafts 15, which serves as a spline shaft, is rotatably supported on the machine frame 12 and has three engagement threads on its circumferential surface. Part 15a, 15a, 15
a, and the other guide shaft 16 is connected to the machine frame 12.
It is supported by

A sprocket 17 is fixed to one end of the guide shaft 15, and is interlocked with an X-direction drive motor (not shown) via a belt 18.

Reference numeral 19 designates a Y-direction feed shaft having one end loosely fitted to the guide shaft 15 via a bearing 19A, the other end loosely fitted to the guide shaft 16 via a bearing 9B, and the bearing 19A connected to the Y-direction drive belt 13.

20 is a first movable sprocket having a groove that fits with the three engaging portions 15a of the guide shaft 15 and supported on the guide shaft 15 so as to be movable along the axial direction;
Reference numeral 1 denotes a second moving sprocket supported so as to be movable along a guide shaft 16 and rotatable therewith.

22 is an X-direction drive belt wound around the first movable sprocket 20 and the second movable sprocket 21; 23 is loosely fitted and supported on the Y-direction feed shaft 19, and connected to the X-direction drive belt 22;
It is an X-direction moving body that moves along.

In addition, 24 and 25 are the machine frame 12 below the guide shaft 15.
A sprocket rotatably supported at a distance from
A second Y-direction driving belt 26 connected to a bearing 19B is wound around the sprockets 24 and 25, and the sprocket 24 is interlocked with the sprocket 10.

Further, 27 is an embroidery frame fixed to the X-direction moving body 23.

28 and 29 are arranged on both sides of the sewing machine table 2 so as to cover the guide shafts 15 and 16.
This is a cover in which the feed passages 29, 29 of No. 9 are opened.
(See Figure 3) 30A and 20B are arranged facing the feed paths 29 and 29 of the covers 28 and 28 so as to cover the feed paths 29 and 29, respectively, and have one end fixed to one side of the bearings 19A and 19B. Rollers 31, 32, 33 whose other ends are supported on the machine frame with a distance in the axial direction of the guide shafts 15, 16,
This is a covered belt fixed again to the other side of the bearings 19A, 19B via 34.

As shown in FIG. 4, the covered belt 35 has one end fixed to a bearing 9A or 9B, and the other end attached to take-up rollers 36, 36, which are always receiving an acting force that rotates the belt 35 in the direction of winding it. It may be configured to be wound.

Next, the operation of this invention will be explained.

The rotation of the X-direction drive belt (not shown) rotates the guide shaft 15 via the sprocket 17.
Due to the rotation of the guide shaft 15, the guide shaft 15 and the engaging portion 1
The first moving sprocket 20 engaged at 5a
rotates together with the guide shaft 15. By the rotation of this first moving sprocket 20, the X direction drive belt 2
2 moves in the X direction. Due to the movement of the X-direction drive belt 22, the X-direction moving body 23 moves toward the Y-direction feed shaft 1.
9 along the axial direction, and the embroidery frame 27 also moves in the X direction.

Next, the sprocket 10 is rotated by the driving of the Y-direction drive motor 14, and thereby the Y-direction drive belt 13 is driven.

Since this Y-direction drive belt 13 is connected to a bearing 19A, the bearing 9A moves on the guide shaft 15, and accordingly, the bearing 9B moves on the guide shaft 16 in the Y direction via the Y-direction feed shaft 19. As a result, the X-direction moving body 23 and the embroidery frame 27 also move in the Y-direction.

In this manner, the fabric provided on the embroidery frame 27 can be moved to a predetermined position by the combined movement of the embroidery frame 27 in the X and Y directions.

Then, following the movement of the Y-direction feed shaft 19 in the Y direction, the covered belts 30A, 30B move the cover 28,
28 along the feeding paths 29, 29 and moving along the feeding path 2
9, 29 are always covered.

As described above, according to this invention, the covered belt is arranged opposite to the feeding path of the cover, and this covered belt is configured to move along the feeding path in relation to the movement of the Y-direction feeding shaft. Therefore, the feed path of the cover can be covered at all times, and the machine oil of the feed device will not scatter from the feed path, staining the embroidery cloth, or tools placed incorrectly on the sewing machine table may enter and cause the feed device to malfunction. It is possible to prevent the disadvantages of

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embroidery frame drive device of a conventional embroidery sewing machine, FIG. 2 is a partial perspective view of an embroidery frame drive device equipped with a feeding path covering device according to this invention, and FIG. 3 is a perspective view of an embroidery frame drive device according to this invention. A perspective view of an embroidery frame driving device provided with a path covering device, and FIG. 4 is a partial perspective view of another embodiment of the feeding path covering device according to the present invention. 2... Sewing machine table, 15, 16... Guide shaft, 19... Y direction feed shaft, 23... X direction moving body, 27... Embroidery frame, 28, 28... Cover, 3
0A, 30B...Coated belt.

Claims (1)

[Claim for Utility Model Registration] A Y-direction feed shaft whose both ends are supported by guide shafts arranged parallel to each other at a distance on both sides of the sewing machine table, and which moves along the guide shaft, and a Y-direction feed shaft which covers the outside of the guide shaft. A cover that is placed on both sides of the sewing machine table and has a feed path for the Y-direction feed shaft opened inward; an X-direction moving body that is supported on the Y-direction feed shaft and moves along the Y-direction feed shaft; In an embroidery frame driving device of an embroidery sewing machine equipped with an embroidery frame, the cover is disposed facing the feed path so as to cover the feed path, and moves along the feed path in relation to movement of the Y-direction feed axis. 1. A feeding path covering device for an embroidery frame drive device in an embroidery sewing machine, characterized in that a covering belt is provided.