JPS59146799A - Method of detecting degree of wear of cutter edge for doublepile textile and pile cutting device for double pile textile - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an endless bell I-force soter using a winding drive device.
Pile cutting method for running double pile raw fabric between upper layer fabric and lower layer fabric, cutting the pile thread connecting between them to separate the upper layer fabric and lower layer fabric into piles, and It is related to the device.

Here, in the present invention, the "double pile raw fabric" has an upper layer fabric and a lower layer fabric, which are connected by pile yarn, and by cutting the pile yarn between them, two sheets of cuff I. It means something that can be made into pile fabric, and is made by knitting and knitting an upper base fabric and a toe base fabric and joining them with pile threads, such as those made on a double-seven loom or a double raschel knitting machine. In addition to those made by the so-called bonding method, which is made by pushing pile threads between an upper base fabric and a lower base fabric coated with adhesive in a downward motion, it is a thin, thin fabric with a short pile length. The material is used for chair fabrics and seat fabrics, and the thick material with a long pile length is used for rugs (carpets). ” is not limited in its meaning.

In addition, when producing double pile raw fabric at a relatively low speed like a double seven-knit loom, a pile cutting device is attached to the mokeno 1-loom, and the double pile raw fabric can be produced at a relatively high speed like a double raschel knitting machine. In the case of production, a pile cutting device is installed as a separate device separated from the knitting machine, but in the present invention, even if the pile cutting device is attached to the double pile raw fabric production facility. , or may be separately installed.

Conventionally, pile cutting equipment has been equipped with four polishing wheels that come into contact with the cutter blade edge, and when the blade edge becomes worn, it is possible to sharpen it by controlling the degree of contact. However, the degree of wear and tear can be confirmed visually, but it is not possible to visually confirm the degree of wear and tear on the cutting edge of a rotating cutter. The pile surface of the cut pile fabric is visually inspected to see if it is smooth and even.

Therefore, when wear of the cutting edge is detected based on the cutting condition of the pile surface, a cutting defect (defective product) has already occurred on the pile surface, and this defect cannot be prevented, so the cutter is stopped and the cutting edge is worn out. However, since the cutter is a long endless belt, stopping the rotation of the cutter and visually inspecting the entire length of the cutter is a hindrance to production efficiency. .

The present invention solves such inconveniences, and it is possible to check the condition of the cutting edge without using a special detection device, by using a double pile raw material that is currently exposed (I: JJI) as a part of the detection device. It is something.

That is, in the present invention, the endless bell 1-cutter is caused to run between the upper base fabric and the lower base fabric of the double pile raw fabric by the winding drive device, and the pile threads connected therebetween are passed through the upper base fabric. In a pile cutting device that produces a cut pile separated into a cutter and a lower base fabric, a detection circuit that detects a change in rotational torque of a driving shaft that rotationally drives an endless bell 1-cutter and a reference value of the rotational torque is set. Equipped with a setting circuit to operate the grindstone for polishing the cutter blade edge, an operation circuit to operate the grindstone of the polisher, and an instruction circuit to instruct the operation of the grindstone of the polisher. If the signal exceeds l? The idea is to operate the grindstone by sending a signal to the operating circuit, and detect the degree of wear on the cutter edge based on the change in torque per rotation of the driving shaft that rotates the endless belt cutter. ,
Rather than checking the state of the cutting edge by bringing a special member into contact with the cutting edge after polishing, or by reflecting or transmitting light or electromagnetic waves, the method uses the original pile thread as it is. It is characterized by the idea of using it as a member 7 for checking the condition of the cutting edge.

The present invention will be explained below with reference to illustrated embodiments.

The figure schematically shows a part of the structure of the pile cutting device and a split tube circuit. 1 is an endless helt cassota, which is wound and driven by a motor 2 to form an upper base fabric 4 and a lower base fabric 5 of a double pile raw fabric 3. Run between. Reference numeral 6 denotes a pile yarn 6 that connects the upper base fabric 4 and the lower base fabric 5 of the double pile raw fabric 3, and when the double pile raw fabric 3 is sent out, it comes into pressure contact with the cutting edge 7 of the endless bell i and cutter 1. It is canted to form a cut pile 8 of the upper base fabric 4 and a cut pile 9 of the lower base fabric 5.

Reference numeral 10 denotes a 1-lux detector with a built-in current converter circuit, which detects the rotational torque of the cutter drive device 2 by detecting the amount of current flowing through the electric line of force 24 to the cutter drive device 2. ] A torque signal 25 is transmitted to the meter protector.

The command signal generator 11 forms a wind converter circuit together with an operating power setting device 19, a split pipe upper limit setting device 20, and a split pipe lower limit setting device 21, and the operating power setting device 19 sets the load power of the torque signal 25. The split pipe upper limit setter 20 gives a setting signal for the upper limit value of the rotational torque of the cutter drive device 2.
When a 1-lux signal 25 exceeding the upper limit is received, an upper limit over signal 26 is sent to the signal checker, and a split pipe lower limit setting device 21 sets the lower limit of the rotational torque of the cutter drive device 2. A value setting signal is given, and when a torque signal 25 less than the lower limit value is received, a lower limit under signal 29 is transmitted to the relay 17. The signal checker constitutes a delay circuit together with the delay time setting device 22, and is given a delay time setting signal for the upper limit over signal 26 received by the delay time setting device 22, and converts the upper limit over signal 26 into the set delay time. A confirmation signal 27 is sent to the relay 13 when the signal is received in excess of 100%.

Relay 13 has a built-in relay drive circuit, and confirmation signal 2
7 is received, an alarm is issued from the display 15, and an operation signal 28 is transmitted to operate the polisher 14.

A grindstone is attached to the polisher 14, and is operated by receiving an operation signal 28 to adjust the contact pressure and contact angle between the grindstone and the cutting edge 7.

Similarly to the relay 13, the relay 17 has a built-in relay live circuit, and receives the lower limit under signal 29 and displays the lower limit under signal 29 on the display 1H.

Further, the notar protector 16 has a built-in protection circuit, and the received torque signal 25 is displayed on the torque indicator 23.

By the way, the cutter drive device 2 rotationally drives the Hell I cutter 1 and the double pile raw fabric 3 is sent out to the Bell 1 cutter 1, so that the Hell I cutter 1 is transferred to the pile yarn 6.
The cutting operation is carried out to cut the pile 8 and cut pile 9, but the resistance received from the pile yarn 6 of the heald cutter 1 changes depending on the degree of wear on the cutting edge 7, and at the same time, the resistance of the cutter 1 changes. Since the rotational torque of the drive device 2 also changes, the rotational torque of the cutter drive device 2 when the cutting edge 7 is worn out within the limit for normal cutting is set as the upper limit, and the second limit setting device 20 A setting signal is given to the command signal generator 11 by the command signal generator 11, and a command signal is generated by the split tube lower limit setting device 21 with the lower limit value being the force and rotational torque of the vine drive device 2 when the casoteng operates normally immediately after the cutting edge 7 is polished. When a setting signal is given to the cutter 11 to perform pile cutting work, when the cutting edge 7 gradually wears out and is on the verge of causing a cutting defect, the rotational torque of the cutter drive device 2 also increases and the command signal generator 11 Upper limit oats＼−
The signal 26 is transmitted and the polisher 14 is activated via the signal checker 12 and the relay 13 to polish the cutting edge 7, so that the cutter drive device 2 is activated simultaneously with the polishing without causing any force or noting defects. The rotational torque decreases, the command signal generator 11 stops transmitting the -l two-limit over signal 26, and the polishing operation of the polisher 14 also stops. At this time, the command signal generator 11 transmits a lower limit under signal 29 to notify the display 18 of the end of polishing. At the same time, if an abnormality occurs in which the double pile material 3 is not fed out during the cutting operation, the resistance received by the heald cutter 1 from the double pile material 3 will be extremely reduced, and at the same time, the cutter driving device 2 will Since the output will never go around the lower limit set by the lower limit setter 21, the command signal generator 11 will continue to transmit the lower limit (word 29), so the display 110 will output a lower limit. It is also possible to detect any abnormality.

And again, the cutting edge 7 is worn out and G)
However, for some reason, temporary G power and Tsuta salt K'
Since the mJ device 2 does not transmit the confirmation signal 27, an abnormal situation in which the cutting edge 7 is polished without being purged or required to be polished is avoided.

Incidentally, changes in the rotational torque of the cutter driving device 2 during the cutting operation can be observed from the torque indicator 23G.

As explained above, according to the present invention, the tj of ℃ 7
- 1 Force of pile thread 6 due to wear / Under failure 6 (F
＝Actually, the production efficiency is improved because the polishing adjustment of the cutting edge 7 is not done by stopping the Irukanotenki device every time.
fir]I:.

In addition, since the double foil original fabric 3, which requires a special trial cutting member to check the cutting condition of the cutting edge 7 after polishing, is used as a component for checking the degree of wear on the cutting edge 7, it is economical in terms of equipment. Effects such as hot handling and heat may occur.

[Brief explanation of the drawing]

The figure is a conceptual diagram of the operating principle of the pie (rexoang) device according to the embodiment of the present invention, showing a perspective view of the main parts of the pile cutting system and a split pipe circuit diagram.

Claims (1)

[Claims] 1. An endless belt cutter is run by a winding drive device between the upper fabric and the lower layer fabric of the double pile raw fabric to cut the pile thread connecting between the upper fabric and the lower layer fabric. A double pile raw fabric characterized in that the degree of wear of a cutter blade edge is detected based on the force separated from the cloth and the change in the rotational torque of a driving shaft that rotationally drives an endless belt cutter 1 in a pile cutting device that makes a double pile. A method for detecting the degree of wear on cutter edges. 2. The endless helt cassota is run by the winding drive device between the upper layer fabric and the lower layer fabric of the double pile raw fabric, and the pile yarn connecting between them is cut into the L-L lower layer fabric and the lower layer fabric. In a pile cutting device that produces separated cut piles, there is a detection circuit that detects changes in the rotational torque of the driving shaft that rotates the beltless cassock, a setting circuit that sets the reference value of the rotational torque, and a grindstone that polishes the cutter edge. Equipped with an operation circuit that operates the grinder and an instruction circuit that instructs the operation of the polisher's grindstone, the setting circuit receives the signal sent by the detection circuit, and sends a signal that the rotational torque exceeds the reference value to the operation circuit through the instruction circuit. This is a pile cutting device for double-pile raw material that operates the grindstone by sending a message.