JPH02264693A - Sewing machine device for embroidery - Google Patents

Abstract

PURPOSE:To smoothly and quickly execute drawing-out of an embroidery completion tambour and setting of a new tambour by constituting a sewing device for embroidery so that the drawing-out work of the tambour is executed automatically, alternately and intermittently by a piston operation interlocked with the left and right reciprocating motion of an embroidery lace needle mechanism. CONSTITUTION:Embroidery is executed by operating simultaneously an embroidery lace needle mechanism H positioned right above one of adjacent tambours for a prescribed time, and when it is ended, the operation of the embroidery lace needle mechanism H is stopped and shifted to the upper part of the adjacent tambour 8, and in the next moment, by operating an air cylinder 6 of a receiving frame 2 to which the tambour 8 whose embroidery is completed is set, a piston head 7 is provided projectingly, and the rear end face of the upper frame of the tambour is pressed forward. As a result, the tambour 8 pressed elastically against the receiving frame 2 through an elastic pressure roller 5 pushes away its elastic pressure roller 5 and drops down so as to be repelled out of the front of the receiving frame 2. Subsequently, before the moved embroidery lace needle mechanism H completes its embroidery, a worker sets a new framed tambour 8 to an empty receiving frame 2 and completes the work.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to an embroidery sewing machine for embroidering one-point marks and the like on socks, gloves, and the like.

(Prior Art) The applicant previously obtained a patent for an embroidery sewing machine M that performs embroidery by alternately and intermittently feeding an embroidery frame after frame tensioning into an embroidery needle mechanism H that repeats left and right reciprocating motions of a predetermined width. (Patent No. 1260765 - Japanese Patent Publication No. 59-36024).

By the way, this prior art is equipped with slide receiving frames for two embroidery needle mechanisms H on the underframe located behind the embroidery needle mechanism H, and the frame tensioning is completed on the receiving frame to which a pressing member is attached. This method feeds the next embroidery frame intermittently, but in this case, after the embroidery is completed (at this time, the embroidery needle mechanism H moves to the next position and the embroidery work continues).
It is necessary for the worker to quickly remove the embroidery frame from the receiving frame and set a new embroidery frame.

However, as mentioned above, since the embroidery frame is held in place by the pressing member when set in the receiving frame, the extraction operation is particularly time-consuming and impairs smooth workability. ~20 animals), increase the number of workers to handle the interlocking operations, or -
When there is a need to stop the sewing machine operation.

(Problems to be Solved by the Invention) The present invention has been made in order to solve the problems of the prior art.
An object of the present invention is to provide an embroidery sewing machine device which can perform embroidery automatically and intermittently by piston movement using air pressure or hydraulic pressure in conjunction with the left and right reciprocation of the embroidery machine.

[Structure of the Invention] (Embodiments) To explain the following with reference to the embodiments shown in the drawings, an embroidery sewing machine is provided with an embroidery needle mechanism H that repeats left and right reciprocating movements of a predetermined width, as shown in FIGS. 1 and 2. On the underframe 1 located behind the embroidery needle mechanism H, a slide receiving frame 2 for two of the embroidery needle mechanisms H is fixed in such a manner that its front half projects forward of the underframe I.

This slide receiving frame 2 has a fitting recess 2a at the tip and rising walls 2b on the left and right sides, and is further equipped with a bullet plate 4°4 on the left and right sides of which a pressing roller 5 is pivoted at the tip. An air cylinder 6 that controls the longitudinal stroke of the piston head 7 is provided between the bullet plates 4, 4.

In connection with the left and right reciprocating movement of the embroidery needle mechanism H, when the embroidery needle mechanism H becomes empty, the piston head 7 of the slide receiving frame 2 directly below it is pushed forward, and the pressure roller The embroidery frame 8 fitted through the slide receiving frame 2 is connected to the same electrical control command system so as to be ejected from the front end of the slide receiving frame 2, thereby completing the embroidery sewing machine device of the present invention.

(Function) Now, when the worker stands in front of the sewing machine base frame 1 and sets the fully stretched embroidery frame 8 in each slide frame 2 shown in FIG. When the pressing roller 5, which is pivotally attached to the bullet plate 4, is pushed up and landed on the receiving frame 2 by its elastic force, the start switch of the sewing machine is turned on.

Then, as shown in FIG. 2, the embroidery needle mechanisms H located directly above one of the adjacent embroidery frames 8 operate all at once for a predetermined period of time (the time varies depending on the embroidery motif, but usually about 1 to 2 minutes). When the embroidery is completed, the embroidery needle mechanism H stops operating and moves to the upper part of the next embroidery frame 8, and at the next moment, the air cylinder 6 of the receiving frame 2 in which the embroidery frame 8 that has completed embroidery is set is moved. When activated, the pad 7 is projected to the piston and presses the rear end surface of the upper pad of the embroidery frame 8 forward. Then, as shown in FIG. 3, the embroidery frame 8, which has been hit on the receiving frame 2 via the pressure roller 6, pushes aside the pressure roller 5 and is ejected from the front end of the receiving frame 2 and falls. Although not shown in the drawings, the falling objects will probably be stored in a box or transported to the next process by a conveyor belt.

Then, before the moved embroidery needle mechanism H completes embroidery, the worker completes setting a new frame embroidery frame 8 into the empty receiving frame 2.

Thereafter, embroidery sewing is performed by the continuous operation.

[Effects of the Invention] As described above, the present invention solves the difficulty and inefficiency of the extraction work caused by the embroidery frame being stuck to the receiving frame by the pressing member in the conventional embroidery sewing machine as mentioned at the beginning. Since the embroidery needle mechanism H is able to perform embroidery automatically and intermittently by piston movement using air or hydraulic pressure in conjunction with the left-right reciprocating movement of the embroidery needle mechanism H, it is possible to perform embroidery in one pair of embroidery frames while the other is in the process of embroidering. This allows you to smoothly and quickly remove the embroidery frame that has completed embroidery and set a new embroidery frame.
Even in the case of emergency (head), one worker can sufficiently handle the situation.

Without major design or additional changes to conventional embroidery sewing machines, a compact cylinder is built into the upper surface of the receiving frame 2 and connected to the same electrical control and command system as the embroidery needle mechanism, resulting in a simple structure and equipment. Another major advantage is that it is relatively inexpensive.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a cross-sectional plan view of a part (embroidery needle mechanism) of the main part, FIG. 2 is a perspective view showing the operating state, and FIG. 3 is a vertical cross-sectional side view of the same. . H-m-Embroidery needle mechanism, 1--1 frame, 2-m-slide receiving frame, 2a--1 fitting recessed part, 2b-m-rising wall, 4
-11 bullet plate, 5--1 pressure cola, 6--pneumatic or hydraulic cylinder, 7--piston head, 8-m-
embroidery frame. Patent applicant: Limited company, resident in 22 countries

Claims (1)

[Claims] 1) In an embroidery sewing machine that is equipped with an embroidery needle mechanism H that repeats left and right reciprocating movements over a predetermined width, two needles are installed for each embroidery needle mechanism H on the underframe 1 located behind the embroidery needle mechanism H. The destination slide receiving frame 2 is fixed with its front half projecting forward of the underframe 1, and the slide receiving frame 2 has a fitting recess 2a at its tip, rising walls 2b on the left and right, and further has left and right walls on the upper surface. Bullet plates 4, 4 having a pressing roller 5 pivotally attached to their tips are attached to the plate, and an air or hydraulic cylinder 6 for controlling the longitudinal stroke of the piston head 7 is provided between the left and right bullet plates 4, 4. When the embroidery needle mechanism H becomes empty due to the left and right reciprocation of the embroidery needle mechanism H, the piston head 7 of the slide receiving frame 2 directly below it is pushed forward and fitted into the slide receiving frame 2 via the pressure roller 5. An embroidery sewing machine device characterized in that the embroidery frame 8 attached thereto is connected to the same electrical control and command system so that the embroidery frame 8 is ejected from the front end of the slide receiving frame 2.