JPH0325533B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is directed to a mat weaving machine for weaving tatami mats, flower mats, etc. to completely automate the supply of raw rush weed. This invention relates to an automatic feeding device.

(Prior art) A mat weaving machine for weaving tatami mats, flower mats, etc. usually weaves raw rushes while automatically supplying a predetermined number of raw rushes from rush supply mechanisms configured on both sides. . Conventionally, this type of mat weaving machine did not have a device that constantly supplied a predetermined number of raw rushes, but simply placed a shielding plate at the front of the rasp tube, and used this shielding plate to remove the rushes that were not being supplied outside the machine. It was enough to exclude them.

(Problems to be Solved by the Invention) Therefore, in the conventional mat weaving machine, the supply of raw rush from both sides often stops due to irregularities or bends in the root ends of rushes, and the raw material between the weaving threads often stops. Even though the number of rushes is less than the predetermined number, the weaving process proceeds continuously, so in areas where there is a shortage of raw rushes, clogging of the product mats becomes significantly worse, and the thickness of the product mats increases. There was a problem that a situation occurred in which the weight was insufficient due to unevenness, and the quality of the product mat was significantly deteriorated.

The present invention has been made with attention to these points, and is a mat weaving method that eliminates the shortage of raw rush rush and can weave high-quality product mats with good clogging and uniform thickness. The present invention provides an automatic feeding device for raw rush material in a machine.

(Means for Solving the Problems) Therefore, the present invention includes a detection mechanism that detects the number of raw rushes supplied from the rush supply mechanism to between the weaving yarns, and a detection mechanism that detects the lack of the number of raw rushes supplied from the rush supply mechanism. a stop mechanism that stops a friction plate for drive transmission of a continuously variable transmission section that rotates a thread hanging roll of a thread supplying device when detecting this, and a stop mechanism that controls and drives the stop mechanism in response to a detection signal from the detection mechanism. a control means, an operating lever rotatably disposed such that the stop mechanism presses a distal end of the stop mechanism against the friction plate and separates a transmission wheel that rotates the friction plate from the friction plate; and the control unit. and an electromagnetic machine that rotates the actuating lever under the control of a device.

(Function) In the automatic feeding device for raw material rushes in a mat weaving machine of the present invention configured as described above, the detection mechanism detects the number of raw material rushes supplied from the rush supplying mechanism to between the weaving yarns. The detection result is sent to the control means, and when this detection mechanism detects a shortage in the number of raw rushes supplied, the rush removal mechanism is controlled and driven to remove the raw rushes remaining due to the insufficient supply, and the system stops. The mechanism is controlled and driven to stop the friction plate,
Furthermore, by pressing and stopping the rush separating needles with a presser mechanism that operates in response to the operation of the rush removal mechanism, the supply of raw rushes can be stopped due to irregularities or bends in the root ends of the rushes. If there is a shortage of raw material rush between the weaving threads, the weaving process is immediately stopped and the remaining raw material rush is removed to create a high-quality product with good clogging and uniform thickness. The present invention successfully realizes an automatic feeder for raw rushes in a mat weaving machine that can weave good quality mats.

(Example) Next, an example of implementation of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram showing an embodiment of an automatic feeding device for raw material rushes in a mat weaving machine according to the present invention, and FIGS. 2 to 4 show a detection mechanism, a rush removal mechanism and a pressing mechanism used therein, FIG. 3 is a schematic configuration diagram showing an example of a stopping mechanism. In the drawings, 1 is a detection mechanism, 3 is a rush removal mechanism, 5 is a holding mechanism, 7 is a stop mechanism, and 9 is a control means.

As shown in FIG. 2, the detection mechanism 1 includes a detection rod 1.
1, a push rod 13, and a switching element 5. The detection rod 11 is the gutter rootstock 17
It is rotatably supported on a support base 9 provided on the upper surface of the central portion of the holder, and its lower end 21 is curved and hangs down between the weaving threads 23. The lower end 21 of this detection rod 11 comes into contact with raw material rushes supplied between the weaving threads 23 from a rush supply mechanism (not shown in FIG. 2), and accurately detects the number of rushes one by one. ing. The push rod 13 extends integrally from the upper end of the detection rod 11 and rotates together with the detection rod 1. Note that 25 is a bullet for returning the detection rod 11, and is formed of a coil spring. Further, the switching element 15 is, for example, a limit switch, and is obliquely attached to an arm rod 27 that projects from the entire surface of the machine frame to the front, which is not shown in the drawings. This switching element 15 is the pushing rod 13.
It is operated by the rotation of the opening/closing operation and sends the signal to the control means 9. Here, this control means 9 is constituted by, for example, a microcomputer.

As shown in FIG. 3, the rush removal mechanism 3 is composed of a removal rod 31 and an electromagnetic machine 33. The removal rod 31 is rotatably supported by a rotary support section 37 below the rush supply mechanism 35,
A claw portion 39 is provided at its upper end. The removal rod 31 rotates to catch rushes 41 remaining due to insufficient supply on the claw portion 39 and remove them diagonally backward. The electromagnetic machine 33 is, for example, an electromagnetic solenoid, and is connected near the lower end of the removal rod 31. This electromagnetic machine 33 operates according to the control drive of the control means 9, and rotates the removal rod 31. Further, as shown in FIG. 3, the presser mechanism 5 extends from the rotary support portion 37 of the removal rod 31 of the rush removal mechanism 3, and rotates together with the removal rod 31. A bullet 51 made of a coil spring is connected to this presser mechanism 5, and is always connected to the arrow A along with the removal rod 31.
is biased in the direction of

As shown in FIG.
1 and an electromagnetic machine 73.
The actuating lever 71 is disposed near the center of the front surface of the friction plate 75, and is configured such that its tip 79 comes into pressure contact with the friction plate 75 when it rotates about the rotation support portion 77 as a fulcrum. Further, the electromagnetic machine 73 is the electromagnetic machine 3
3, it is, for example, an electromagnetic solenoid, which operates according to the control drive of the control means 9, and rotates the operating lever 71.

Next, the operation will be explained.

During the weaving operation, the detection rod 11 interposed between the weaving threads 23 uses its lower end 21 to accurately detect each raw rush supplied from the rush supply mechanisms 35 on both sides. . When the raw material rush is being smoothly supplied, the lower end 21 comes into contact with the raw material rush, the detection rod 11 does not rotate, and the switching element 15 is not operated by the thrust rod 13. Therefore, the mat weaving machine continues the mat weaving process normally and continues to weave the product mat with good quality.

Here, if any one of the predetermined number (usually four) of raw rushes supplied from the rush supply mechanism 35 is not supplied, the detection rod 11
The lower end 21 rotates without contacting the raw material rush. As the detection rod 11 rotates, the thrust rod 13 also rotates, and the switching element 15 is operated with its tip. A signal from the switching element 15 resulting from this operation is sent to the control means 9. When the control means 9 receives this signal, it starts the rush removal mechanism 3 and the stop mechanism 7.
A signal is sent to the electromagnetic machines 33 and 73 to control and drive them. Due to the operation of the electromagnetic machine 33, the removal rod 31 rotates outward using the rotary support section 37 at the lower end as a fulcrum, catches the raw material rush 41 remaining due to the insufficient supply with the claw section 39, and moves diagonally backward. Exclude. At this time, the holding mechanism 5 extending from the rotary support portion 37 of the removal rod 31 also moves together with the removal rod 31 to stop the operation while holding down the rush needle. Also,
When the electromagnetic machine 73 operates, the operating lever 71 rotates about the rotation support portion 77 as a fulcrum. Therefore, the operating lever 71
The tip 79 of the actuator 71 presses against the friction plate 75 to perform a braking action, and the tip 79 of the actuator 71 presses against the friction plate 75 serves as a fulcrum to further push the actuator 7.
1 rotates, the rotation fulcrum 77 also moves in the direction of arrow C shown in FIG. and,
As the rotation fulcrum 77 moves, the mounting plate 78 connected thereto moves, and the transmission wheel 76 supported by the mounting plate 78 also moves in the direction of arrow B shown in FIG.
In this way, the transmission wheel 76 is separated from the friction plate 75 to stop the transmission of power, and the rotation of the weaving roll and the transfer of the weaving yarn are stopped, and the Hiroza weaving process is temporarily interrupted.

When a predetermined time has elapsed, the control means 9 cancels the operation of the electromagnetic machines 33, 73. As a result, the removal rod 31, the holding mechanism 5, and the operating lever 71 return to their predetermined positions, and the stopped mechanisms resume operation. Therefore, the mat weaving machine returns to the normal mat weaving process, and we continue to weave high-quality product mats.

Although detailed explanation has been given above according to the illustrated embodiment,
It goes without saying that the present invention is not limited to this, but includes various variations.

(Effects of the Invention) The present invention is configured as described above, and detects the number of raw material rushes supplied between the weaving yarns from the rush supply mechanism, and as a result, when the number of raw material rushes supplied is insufficient, The rush removing mechanism is controlled and driven to remove raw material rushes left due to insufficient supply, the stopping mechanism is controlled and driven to stop the friction plate, and the pressing mechanism presses the rush dividing needle to stop it. Therefore, even if the supply of raw rush material stops due to irregularities or bends in the root ends of rushes, and there is a shortage of raw material rush between the weaving threads, the weaving process is immediately stopped and the supply of rush material remains in short supply. Raw material rush can be eliminated,
It is possible to weave a high-quality product mat with good clogging and uniform thickness, and the above-mentioned stopping mechanism is actuated via an electromagnetic machine to separate the transmission wheel from the friction plate by a control means such as a microcomputer. By rotating the thread, the rotation of the thread hanging roll in the thread supply device and the transport of the thread are stopped, so the cost is low without requiring a mechanically complex mechanism like the conventional one, and An excellent effect can be obtained in that a mat weaving machine with high operational reliability can be easily realized.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram showing an embodiment of an automatic feeding device for raw material rushes in a mat weaving machine according to the present invention, and Figs. 2 to 4 show a detection mechanism, a rush removal mechanism, and a presser mechanism used therein. , and a schematic configuration diagram showing an example of a stopping mechanism. 1...detection mechanism, 3...rush removal mechanism, 5...
Presser mechanism, 7... Stop mechanism, 9... Control means, 1
1...Detection rod, 3...Pushing rod, 15...Switching element, 23...Weaving thread, 31...Exclusion bar, 3
3, 73... Electromagnetic machine, 39... Claw portion, 71... Actuating lever, 75... Friction plate.

Claims (1)

[Claims] 1. A detection mechanism that detects the number of raw rushes supplied between the weaving yarns from the rush supply mechanism, and when this detection mechanism detects a shortage in the number of raw rushes supplied,
A stop mechanism that stops a friction plate for drive transmission of a continuously variable transmission section that rotates a thread hanging roll of a thread supply device, and a control means that controls and drives the stop mechanism in response to a detection signal from the detection mechanism. , the stopping mechanism is controlled by an actuating lever rotatably disposed such that a tip thereof is pressed against the friction plate and a transmission wheel for rotating the friction plate is separated from the friction plate; and an electromagnetic machine that rotates the operating lever.