CN209941227U

CN209941227U - Fault maintenance device of light reflection type electromagnetic needle selector

Info

Publication number: CN209941227U
Application number: CN201821830373.1U
Authority: CN
Inventors: 罗晓明; 杨永照; 郑秋坚
Original assignee: Guangdong Chuangda Automation Equipment Co Ltd
Current assignee: Guangdong Chuangda Automation Equipment Co Ltd
Priority date: 2018-11-06
Filing date: 2018-11-06
Publication date: 2020-01-14
Anticipated expiration: 2028-11-06

Abstract

The utility model discloses a light reflex formula electromagnetism selects trouble shooting device of needle ware, including the aluminium frame, be equipped with the electro-magnet in the aluminium frame, the front end of aluminium frame is equipped with selects the needle tool bit, select the needle tool bit to be connected through the pivot with the aluminium frame, the rear end of aluminium frame is equipped with the circuit board, including control element in the circuit board, control element is connected with the electro-magnet electricity, still includes light reflex sensor, light reflex sensor is connected with the control element electricity, light reflex sensor installs in the one side of selecting the needle tool bit, it includes the reflection of light to select the needle tool bit, the reflection of light face is facing to light reflex sensor. The utility model discloses an utilize light reflex sensor to detect the position of selecting the needle tool bit, then through cooperating with control element to form the closed-loop control to selecting the needle operation, in time make the processing of shutting down to selecting the abnormity of needle sword, thereby avoid bringing huge economic loss for the customer, utilize light reflex sensor can improve system's stability moreover.

Description

Fault maintenance device of light reflection type electromagnetic needle selector

Technical Field

The utility model relates to a select needle ware field, especially select trouble shooting device of needle ware.

Background

At present, circular knitting machines and flat knitting machines in textile machinery basically adopt electronic needle selectors as key components for realizing electronic jacquard. The mainstream electronic needle selector comprises a piezoelectric ceramic needle selector and an electromagnetic needle selector, and the electromagnetic needle selector has low cost and low failure rate, so the electronic needle selector is generally accepted by the market. The electromagnetic needle selector generally comprises an aluminum frame, an electromagnetic coil, an electromagnetic driving plate, a needle selecting cutter head with a permanent magnet, a cutter head rotating shaft, a cutter head baffle and the like, as shown in fig. 1. The electromagnetic needle selector generally comprises a data interface circuit and a data processing unit, the data processing unit respectively implements the data to corresponding electromagnetic coils after receiving jacquard action data, and drives the needle selection tool bit embedded with a permanent magnet to swing to different positions by changing the current direction of the electromagnetic coils, so that the purpose of selecting needles is achieved, and one-time yarn weaving is completed.

The data control of the traditional electromagnetic needle selector basically adopts open loop control, namely the data processing unit is implemented on the electromagnetic coil according to the data sent by the main control system, and then the operation is finished. In fact, the master control system is not aware whether the needle selecting cutter head acts or acts in place as required. Therefore, a large amount of defective cloth is generated in actual production due to the problem of selecting the needle tool bit, and huge economic loss is brought to customers.

In view of the above-mentioned shortcomings, the applicant has proposed a closed-loop controlled electromagnetic needle selector, which forms a closed-loop control for electronic jacquard by installing photoelectric sensors at two ends of a needle selecting head and detecting the specific position of the needle selecting head in real time. The jacquard control system can timely carry out corresponding shutdown treatment on the abnormal state of the needle selection knife, thereby avoiding huge economic loss brought to customers. However, this structure has a disadvantage in use that since the generating device and the receiving device of the photoelectric sensor are two independent separate components and are respectively installed on both sides of the selector bit, when any one of the devices fails, the normal operation of the troubleshooting is affected, and thus the troubleshooting system is unstable.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: provided is a needle selector trouble shooting device which is more stable in use.

The utility model provides a solution of its technical problem is: the fault maintenance device comprises an aluminum frame, wherein an electromagnet is arranged in the aluminum frame, a needle selection tool bit is arranged at the front end of the aluminum frame and connected with the aluminum frame through a rotating shaft, a circuit board is arranged at the rear end of the aluminum frame and comprises a control element, the control element is electrically connected with the electromagnet, the fault maintenance device further comprises a light reflection type sensor, the light reflection type sensor is electrically connected with the control element and installed on one side of the needle selection tool bit, and the needle selection tool bit comprises a light reflection surface facing the light reflection type sensor.

As a further improvement of the above technical solution, there are two light reflection sensors, and the two light reflection sensors are respectively located at the left and right sides of the rotating shaft.

As a further improvement of the above technical solution, the alarm device further comprises an alarm, and the alarm device is electrically connected with the control element.

As a further improvement of the above technical solution, the needle selecting cutter head includes a permanent magnet and a cutter body, the permanent magnet is installed behind the cutter body, the rotating shaft penetrates through the cutter body, and the light reflecting surface is located on the permanent magnet.

The utility model has the advantages that: the utility model discloses an utilize light reflex sensor to detect the position of selecting the needle tool bit, then through cooperating with control element to form the closed-loop control to selecting the needle operation, in time do corresponding shut down processing to the abnormal state of selecting the needle sword through like this jacquard control system, thereby avoid bringing huge economic loss for the customer, utilize light reflex sensor to improve the stability of system moreover.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a perspective view of a selector;

FIG. 2 is a schematic plan view of the first embodiment;

FIG. 3 is a schematic diagram of a first embodiment;

fig. 4 is a schematic diagram of the first embodiment.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.

The first embodiment is as follows: referring to fig. 1 to 3, a trouble shooting device for a light-reflective electromagnetic needle selector includes an aluminum frame 1, an electromagnet 2 is provided in the aluminum frame 1, a needle selecting tool bit 3 is provided at the front end of the aluminum frame 1, the needle selecting tool bit 3 is connected to the aluminum frame 1 through a rotating shaft 4, a circuit board is provided at the rear end of the aluminum frame 1, the circuit board includes a control element, the control element is electrically connected to the electromagnet, and the trouble shooting device further includes a light-reflective sensor 5, the light-reflective sensor 5 is electrically connected to the control element, the light-reflective sensor 5 is installed at one side of the needle selecting tool bit 3, the needle selecting tool bit 3 includes a light-reflecting surface, and the light-reflecting surface faces the light-reflective sensor 5.

In a further preferred embodiment, there are two light reflective sensors 5, and the two light reflective sensors 5 are respectively located on the left and right sides of the rotating shaft 4.

Further, as a preferred embodiment, the selector bit 3 includes a permanent magnet 31 and a cutter body 32, the permanent magnet 31 is installed behind the cutter body 32, the rotating shaft 4 passes through the cutter body 32, and the light reflecting surface is located on the permanent magnet 31.

The needle selection knife usually acts by changing the current direction of the electromagnet to generate an N pole or an S pole on the magnetic core, so that the needle selection knife head embedded with the permanent magnet is driven to swing back and forth to realize the needle selection purpose. As shown in fig. 3 and 4, in this embodiment, a light reflective sensor is mounted on the front surface of the permanent magnet of the needle selecting knife, the light reflective sensor integrates an emitting device and a reflecting device, light emitted by the emitting device is reflected by the surface of the permanent magnet, and the moving position of the permanent magnet is determined by receiving the reflected light. When the needle selecting knife swings to the right, the reflected light ray signal can not be detected on the left side, and the reflected light ray signal can be detected on the right side. When the needle selecting knife swings to the right, the reflected light ray signal can not be detected on the right side, and the reflected light ray signal can be detected on the left side.

The steps are repeated continuously, so that the swing position of the needle selecting knife in the electromagnetic needle selector can be monitored in real time. Because the surface of the permanent magnet is generally provided with the nickel plating layer which has better reflecting shape, the surface of the permanent magnet can be directly utilized for reflecting light. And further in order to improve the efficiency of receiving light, a mirror layer can be added on the corresponding surface of the permanent magnet, a glass mirror layer is added, or the surface of the permanent magnet is subjected to fine polishing treatment.

Further as a preferred embodiment, the device further comprises an alarm, and the alarm is electrically connected with the control element. When the control element finds that the action of the needle selector is faulty, an alarm can be given out through the alarm to remind an operator to overhaul the needle selector.

Example two: the needle selecting tool bit can be a whole, the whole needle selecting tool bit is made of magnetic materials, and the rest of the structure is the same as that of the first embodiment.

Example three: the optical reflection type sensor is only one and is arranged on the left side or the right side of the rotating shaft. In some special cases, only one side of the selector may be detected, and the other side may not be considered.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. The utility model provides a trouble shooting device of light reflection formula electromagnetism selector, includes the aluminium frame, be equipped with the electro-magnet in the aluminium frame, the front end of aluminium frame is equipped with selects the needle tool bit, select the needle tool bit and be connected through the pivot with the aluminium frame, the rear end of aluminium frame is equipped with the circuit board, include control element in the circuit board, control element is connected with the electro-magnet electricity, its characterized in that: the needle selection tool also comprises a light reflection type sensor, wherein the light reflection type sensor is electrically connected with the control element, the light reflection type sensor is arranged on one side of the needle selection tool bit, the needle selection tool bit comprises a light reflection surface, and the light reflection surface faces the light reflection type sensor; the needle selecting tool bit comprises a permanent magnet and a tool body, the permanent magnet is installed behind the tool body, the rotating shaft penetrates through the tool body, and the light reflecting surface is located on the permanent magnet.

2. The trouble shooting device of the light-reflective electromagnetic selector as claimed in claim 1, wherein: the optical reflection type sensors are two and are respectively positioned on the left side and the right side of the rotating shaft.

3. The trouble shooting device of the light-reflective electromagnetic selector as claimed in claim 1, wherein: the alarm is electrically connected with the control element.