JPS5827037Y2 - Embroidery hoop support device for embroidery sewing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an embroidery frame support device for an embroidery sewing machine, and more particularly to a frame support structure that allows the embroidery frame to be attached to and detached from its support base without operating instruments or mechanical elements.

In sewing machines that perform embroidery sewing by automatically controlling the embroidery frame support mechanism via multiple servo motors, the embroidery frame support structure generally allows attachment and detachment of the frame by operating screws. The work of attaching and replacing the work cloth to the frame was relatively troublesome, and it was difficult to say that it was efficient.

The present invention aims to solve this problem, and has the feature that the embroidery frame can be attached and detached extremely quickly and easily by using magnets instead of using screws or other mechanical elements as a supporting means. It is something.

To explain the embodiment with reference to the drawings, the bed 1b of the sewing machine 1
Inside, two servo motors (not shown) are controlled by the output of a servo motor control circuit (not shown) installed in the right console 1a, and the driving force thereof is controlled by the two axes orthogonal coordinates of the frame supporter 2. A frame drive mechanism means for transmitting the locus motion of the planar figure, which is the composition of the components, is built-in.

The frame supporter 2 is supported by a Y-axis guide rod 3 passing through the frame supporter 2 so as to be slidable in the front-rear direction toward the sewing machine 1.

The bed 1b is provided with two rows of parallel slits 4, 5 extending in the left-right direction, and front and rear carriers 6.7 supported to support both front and rear ends of the Y-axis guide rod 3 are inserted into the slits 4, respectively. The lower part of the carrier 6.7 is supported by a supporting and guiding mechanism (not shown) inside the bed 1b, and both of the carriers 6.7 and 7 are configured to be slidable along an angle 5. X to which sliding motion is transmitted
It is linked to the shaft drive means.

A Y-axis drive means for transmitting the above-mentioned longitudinal sliding motion to the frame supporter 2 is also provided inside the bed 1b as a transmission relay means capable of moving the carrier 6.7.

Although the applicant has disclosed in detail the drive mechanism for dividing both the X-axis and Y-axis coordinates in the specification of a separate utility model registration application, the details of such internal mechanism are not disclosed. Since this does not particularly affect the gist of the present invention, we purposely omit further explanation.

Therefore, the structure of the embroidery frame support means will be explained with reference to FIG. Y-shaped driving cables 15a, 1 for sliding along
a pair of idler rolls 16a receiving each indexing force of 5b;
16b is pivotally mounted.

A recess 2a for fitting and supporting the magnet piece 9 is formed on one side of the frame supporter 2 on the side where the embroidery frame 8 is to be supported toward the upper side of the bed 1b.

The magnet piece 9 is magnetized upward and downward, and its upper and lower sides are sandwiched between magnetic yoke plates 10 like a side switch, and further covered with a synthetic resin protection plate 11, and then inserted into the recess 2a. This is fixed integrally with the frame supporter 2 with screws 12.

When supporting the magnet piece 9 on the frame supporter 2 in this way,
It is preferable to attach the yoke plate 11 so that it protrudes a little more than the open side surface thereof.

The embroidery frame 8 has a work cloth (not shown) sandwiched between its inner and outer double rings as usual, and a part of the outer ring has a U-shaped socket that holds the frame supporter 2. The width adapter 13 is formed integrally with the outer ring, or a separate piece is fixed as appropriate.

Then, a magnetic adsorption plate 14 is fixed to the bottom of the socket of the adapter 13 by adhesive or other suitable means.

With the above configuration, to describe its usage once again, in the embroidery frame support structure of the present invention, the device for transferring the work cloth to the embroidery frame 8 is carried out when the embroidery frame 8 is removed from the sewing machine 1. It is convenient and effective to remove or replace the embroidery frames 8, and in some cases, a plurality of embroidery frames 8 with adapters may be prepared and some or all of them may be covered with fabric in advance. It is recommended that you prepare the following items in order to improve work efficiency.

Then, the embroidery frame 8 prepared in this way is joined to the frame supporter 2 as shown by the arrow in FIG. As a result, the embroidery frame 8 is firmly held by the frame supporter 2.

Therefore, as shown in FIG. 1, on the sewing machine bed 1b, this embroidery frame 8 moves in the X-axis component due to the left and right sliding movement along the slits 3 and 4 of the Y-axis guide rod 3, and on the Y-axis guide rod 3. The Y-axis component movement of the frame supporter 2 along the frame supporter 2 is given, and an embroidery operation that follows the locus of a planar figure that is a composite of both components is given.

It should be noted that this movement of the embroidery frame 8 is, needless to say, synchronized with the raising and lowering of the sewing machine needle bar 17, and is carried out during the first half of each needle's upward movement from the fabric. The operation of this sewing machine 1 is automatically controlled by a control output corresponding to each stitch according to a control program, usually via a suitable memory means, from a servo motor control circuit (not shown) in the console 1a. The embroidery stitching progresses as the operation progresses.

One embroidery stitch is completed, and the embroidery frame 8 is moved to change the work cloth.
In order to remove the embroidery frame 8 from the frame supporter 2, the embroidery frame 8 is simply pulled off to the left. At this time, the embroidery frame 8 can be easily removed by holding the left end side of the embroidery frame 8 and tilting it upward.

The embroidery frame support means of the present invention, as shown in the diagonal above, is extremely easy to attach and detach from the frame support drive mechanism of an embroidery sewing machine, and therefore efficiency can be significantly improved when embroidery work is continued or repeated many times. Furthermore, since the work cloth can be attached to the sewing machine with the embroidery frame removed from the sewing machine, the work can be done easily and accurately.

In addition, by adhering the U-shaped adapter to the frame supporter so as to match it, the embroidery frame can be positioned very easily.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a sewing machine incorporating the proposed device, and FIG. 2 is an enlarged perspective view of the proposed device. 1: Sewing machine, 1b: Bed, 2: Frame supporter, 3: Y-axis guide rod, 4, 5 Nislit, 6, 7: Carrier,
8: Embroidery frame, 9: Magnet piece, 10: Yoke plate, 13: Adapter, 14: Adsorption plate.

Claims (1)

[Scope of utility model registration request] An embroidery machine uses an embroidery frame drive mechanism that is automatically controlled in synchronization with the lifting and lowering of the sewing machine's needle to perform embroidery stitches by giving the embroidery frame carried by the embroidery frame a motion that follows the locus of a planar figure.
As a frame support means for supporting the embroidery frame and transmitting the operation via the embroidery frame drive mechanism, a magnet piece having both sides sandwiched between yoke plates made of magnetic material is attached to the frame supporter on the frame support side. A U-shaped adapter is disposed on the side of the embroidery frame, and a suction plate capable of joining the yoke plate to create a closed magnetic path is fixed to the adapter, and the adapter is attached to the frame supporter. An embroidery frame support device for an embroidery sewing machine that holds the embroidery frame by adsorption to create the closed magnetic path by matching the U-shapes.