JPH086071Y2 - Lace embroidery machine - Google Patents

Description

[Detailed Description of the Device] [Industrial Application Field] This device automatically determines the operation-stop state of each mechanism at the address at the start of an arbitrary point from the contents of the pattern data without operating the machine. It is related to the lace embroidery machine that was asked to.

[Outline of device]

At the start of an arbitrary point, the machine is set to the initial operation-rest state of each mechanism recorded in a part of the pattern data and the desired operation-rest switching state of each mechanism at the midway start point from the contents of the pattern data. It is a lace embroidery machine that I asked for without driving.

[Conventional technology]

FIG. 7 shows a part of a conventionally known lace embroidery machine (one needle and its accompanying). To briefly explain the mechanism, it moves vertically and horizontally in the vertical plane. A cloth 1 is stretched around a cloth frame supported so that a large number (for example, 700 sets) of needles 2 and borers 3 are horizontally arranged in parallel on the front side thereof, and a shuttle 4 is arranged on the back surface of the cloth 1. ing. The needle 2 and the borer 3 are respectively supported on the surface of the cloth 1 so as to be movable vertically (that is, horizontally), and the shuttle 4 is supported so as to be movable vertically. A first thread clamp 5 and a second thread clamp 6 are supported in front of the needle 2 so as to be swingable in the front-rear direction, and a front thread 7 passed through the needle 2 is hooked on both threads. Two upper and lower cloths 1 are stretched around a cloth frame, and needles 2 and accompanying mechanisms horizontally arranged in parallel are also provided in two upper and lower stages.

Next, the operation will be described. When the needle 2 moves forward, the first thread tightening 5 also moves forward to give the thread 7 slack, and the shuttle 4 (back thread) is passed on the back side of the cloth 1, and when the needle 2 moves backward, the first thread tightening 5 also moves backward. Pull back the slack of the thread 7.
The second thread tightening 6 is the first thread tightening 5 according to the embroidery pattern.
The amount of pulling back of the thread (that is, the degree of thread tightening) is adjusted. When operating the borer 3, the needle 2 is stopped, and the borer regulation is activated if necessary. All the mechanisms of the needle 2, the shuttle 4, the first thread clamp 5, the second thread clamp 6, the borer 3, and the borer regulation are respectively connected to the main shaft 8 via an operation-pause mechanism, and the operation-pause of the same is performed. The switching state is designed to regularly transition in accordance with the transition diagram shown in FIG. However, in the case of a so-called arbitrary point start in which a part of the pattern is skipped and the embroidery is started from an address on the way when the lace embroidery machine is operating, the operation-pause operation of each mechanism of the part skipped by the operator while watching the pattern data is performed. Since the operation / pause switching state at the arbitrary point is set so as to be correctly connected, there is a drawback that it takes a lot of time and labor and a judgment error easily occurs.

[Problems to be solved by the invention]

An object of the present invention is to improve the drawbacks of the above-mentioned conventional device, and at the time of starting an arbitrary point, the operating-pause switching state of each mechanism at the starting point on the way should be handled without operating the machine. The aim is to provide a lace embroidery machine with the functions required from the contents of data.

[Means for solving problems]

In order to achieve the above-mentioned object, the lace embroidery machine of the present invention has means for reading pattern data from the pattern data recording means, and sequentially tracing stitch data in the pattern data, and needle, shuttle, first thread tightening in the stitch data. , Tighten the second thread,
Operation of borer and bowler regulation mechanism −
When the pattern data is embroidered from an arbitrary stitch to an arbitrary stitch, it is provided with a tracing means for obtaining a pause switching state and a means for displaying the operation-pause switching state of each mechanism obtained by the tracing means. The operating-rest switching state of each mechanism that will be reached is determined without operating the machine.

[Action]

By doing so, even if the operator does not visually check the pattern data at the time of starting the arbitrary point, the desired operating / rest switching state of each mechanism is automatically obtained from the content of the pattern data.

〔Example〕

A lace embroidery machine of a type in which a cloth frame is positioned by a servomotor according to an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a block diagram of the whole, Fig. 2 (a) and (b) are state tables of each mechanism, Fig. 3 (a) and (b) are state transition diagrams of each mechanism, and Fig. 4 is an arbitrary point start Fig. 5 shows the pattern of the pattern data,
FIG. 6 is a flowchart showing a procedure for tracing pattern data.

Needle, shuttle, 1st thread tightening, 2nd thread tightening, borer,
Each of the bowler regulation mechanisms is provided with an operation-pause switching device for switching between operation-pause,
Each operation / pause switching device operates according to a switching signal sent from the arithmetic unit to operate or stop each mechanism at a predetermined timing.

Each mechanism is provided with a detection device that detects the operating / resting state, and the detection signal is input to the arithmetic device. The output of the rotary encoder that detects the rotation angle of the main shaft is input to the arithmetic unit.

A pattern data storage device for reading and collectively storing pattern data recorded in a well-known recording means such as a crest paper, a magnetic tape, a magnetic card, and a floppy disk is provided, and the arithmetic device stores the pattern data from the pattern data storage device. Sequential read out Generates control signals that cause all mechanisms to operate in association.

The pattern data includes the name of the pattern, a set of stitch data, and other data necessary for executing lace embroidery (for example, thread or cloth type), among which stitch data includes needles for each stitch, It includes signals such as switching commands for operation-pause switching devices for shuttles, etc., borer regulation, cloth frame movement signals, and spindle start / stop commands. As shown in FIG. 5, all stitch data have consecutive addresses (first stitch,
The second stitch, ..., the nth stitch, ...) are attached.

As is well known, the race embroidery machine has an operation-rest state as shown in FIG. 2, and the transition between the states is
The operation-pause command code existing in the stitch data is executed in the order shown in FIG. The transition between the states is normally performed during one cycle (one rotation of the main shaft).

Fig. 4 shows the operation sequence of this race embroidery machine at the start of an arbitrary point.

At the start of an arbitrary point, as shown in FIG. 5, the initial operation-rest state recorded in the head portion of the pattern data is read from the pattern data storage device, and starting from this state, the same pattern data storage device is started. The read stitch data is sequentially traced in the positive direction from the first address to the designated address. In this way, the operation-rest state of each mechanism at the designated address is obtained and displayed on the operation panel. The operator sees this and sets the machine to the operating-dormant state displayed on the panel, and then starts the operation.

When the initial operation-pause state of each mechanism is not recorded in the head portion of the handle data, the operator must enter the initial operation-pause state of each mechanism into the arithmetic unit while looking at the operation panel. .

Next, a method for tracing the pattern data and determining the operation-rest state at the specified address in the operation sequence at the arbitrary point start shown in FIG. 4 will be described with reference to the flowchart of FIG. To do.

First, the initial operation-rest state is recorded in the two status storage areas of the needle, the needle relation A, and the bowler regulation relation B. Next, while reading the pattern stitch data one stitch at a time, the data in the status storage area is rewritten according to the operation-pause change command (command code) in the data. When the stitch counter becomes equal to the designated address, the processing is terminated, and the contents of the status storage area at this time indicate the operation-pause state required.

If you want to start tracing from an arbitrary stitch here, you can set the address of the stitch instead of 1 in the stitch counter, and if the specified address is before the start address, count up. You can change it to count down. Also, any operation-
When it is desired to start the trace from the rest state, the state may be first set in the current status storage area.

In the above embodiment, the stitch data is traced in the forward direction starting from the initial operation-rest state to a predetermined address, but if necessary, from the arbitrary stitch based on the arbitrary operation-rest state. It is convenient to embroider a pattern by returning or advancing it a little if it is possible to trace any stitch in both forward and reverse directions.

In the above embodiment, the lace embroidery machine in which the cloth frame is driven by the servo motor has been described, but the present invention leaves the mechanical jacquard, and instead of the pattern paper, the pattern data is output by the electric signal output from the arithmetic unit. The same can be done in a lace embroidery machine that uses the method of inputting.

[Effect of device]

As described above, in the lace embroidery machine of the present invention, at the time of starting at an arbitrary point, the desired operation-stop switching state of each mechanism at the midway start point can be determined from the content of the pattern data without operating the machine. By providing the required function, not only the time and labor required for starting an arbitrary point can be significantly reduced compared with the conventional device, but also the intervention of human error can be surely prevented. It has the effect of.

[Brief description of drawings]

Fig. 1 ... Block diagram of an embodiment of the present invention Fig. 2 ... State table of each mechanism Fig. 3 ... State transition diagram of each mechanism Fig. 4 ... Operation sequence at arbitrary point start Fig. 5 ... ... Pattern data format Fig. 6 ... Flowchart of procedure for tracing pattern data Fig. 7 ... Schematic diagram showing a part of a lace embroidery machine (one needle and its accessory)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP 61-253091 (JP, A) JP 51-88348 (JP, A) Practical Sho 60-12377 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. (a) Means for reading pattern data from pattern data recording means, and (b) sequentially tracing stitch data in the pattern data, needles in the stitch data, shuttle, first thread tightening, second thread tightening A tracer for determining the operation-pause switching state of each mechanism of the borer and the borer regulation; and (c) means for displaying the operation-pause switching state of each mechanism obtained by the tracing means. A lace embroidery machine, characterized in that the operating-pause switching state of each of the above-mentioned mechanisms which is reached when embroidering pattern data from an arbitrary stitch to an arbitrary stitch is obtained without operating the machine.