CN209941226U

CN209941226U - Fault maintenance device of magnetic induction type electromagnetic needle selector

Info

Publication number: CN209941226U
Application number: CN201821830371.2U
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 magnetic induction 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, the rear end of aluminium frame is equipped with the circuit board, including control element in the circuit board, still include magnetic sensing element, magnetic sensing element is connected with the control element electricity, magnetic sensing element installs in the one side of selecting the needle tool bit, select the needle tool bit to include the permanent magnet, the permanent magnet is facing to magnetic sensing element. The utility model discloses an utilize the magnetic field change of magnetic sensing element perception tool bit in the action, then turn into the signal of telecommunication, then cooperate through this signal of telecommunication and 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 magnetism to feel formula sensor can improve system's stability moreover.

Description

Fault maintenance device of magnetic induction 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 configuration has disadvantages in use, since the photoelectric sensor is prone to detection inaccuracy in use, resulting in instability of the troubleshooting system.

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: a failure maintenance device of a magnetic induction type electromagnetic needle selector 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 failure maintenance device further comprises a magnetic sensitive element, the magnetic sensitive element is electrically connected with the control element, the magnetic sensitive element is installed on one side of the needle selection tool bit, the needle selection tool bit comprises a permanent magnet, and the permanent magnet faces the magnetic sensitive element.

As a further improvement of the technical scheme, the number of the magnetic sensing elements is two, and the two magnetic sensing elements are respectively positioned at the left side and the right side 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 magneto-sensitive element is a hall element.

The utility model has the advantages that: the utility model discloses an utilize the magnetic field change of magnetic sensing element perception tool bit in the action, then turn into the signal of telecommunication, then cooperate through this signal of telecommunication and 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 magnetism to feel formula sensor can improve system's stability 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 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.

Referring to fig. 1 to 3, a failure inspection device for a magnetic induction type electromagnetic needle selector includes an aluminum frame 1, an electromagnet 2 is arranged in the aluminum frame 1, a needle selecting tool bit 3 is arranged at the front end of the aluminum frame 1, the needle selecting tool bit 3 is connected with the aluminum frame 1 through a rotating shaft 4, a circuit board is arranged at the rear end of the aluminum frame 1, the circuit board includes a control element, the control element is electrically connected with the electromagnet 2, the failure inspection device further includes a magnetic sensing element 5, the magnetic sensing element 5 is electrically connected with the control element, the magnetic sensing element 5 is installed at one side of the needle selecting tool bit 3, the needle selecting tool bit 3 includes a permanent magnet 31 and a cutter body 32, and the permanent magnet 31 faces the magnetic sensing element.

In a further preferred embodiment, there are two magnetic sensors 5, and the two magnetic sensors are respectively located on the left and right sides of the rotation shaft. 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.

Further as a preferred embodiment, the device further comprises an alarm, and the alarm is electrically connected with the control element.

In a further preferred embodiment, the magneto-sensitive element is a hall element. The Hall element is used for sensing the magnetic field change of the permanent magnet after the action, and then the magnetic field change is converted into a voltage signal, so that the detection precision can be improved. Instead, a magnetic resistor, a magnetic diode, or the like may be used in addition to the hall element.

The needle selection knife usually moves by changing the current direction of the electromagnet coil to generate an N pole or an S pole on the magnetic core, so that the needle selection knife embedded with the permanent magnet is driven to swing back and forth to realize the needle selection purpose. As shown in fig. 3, in the present embodiment, magnetic sensors of N-pole and S-pole are respectively mounted on both sides of the permanent magnet of the selector blade to determine the moving position of the permanent magnet.

In the process that the needle selecting knife swings leftwards, the magnetic field intensity of the S pole detected on the right side is continuously increased, and the magnetic field intensity of the N pole detected on the left side is continuously reduced. When the needle selecting knife swings to the right, the magnetic field intensity of the S pole detected on the right side reaches the maximum value, and the magnetic field intensity of the N pole detected on the left side reaches the minimum value. In the process of swinging the needle selecting knife to the right, the magnetic field intensity of the S pole detected on the right side is continuously reduced, and the magnetic field intensity of the N pole detected on the left side is continuously increased. When the needle selecting knife swings to the right, the magnetic field intensity of the S pole detected on the right side reaches the minimum value, and the magnetic field intensity of the N pole detected on the left side reaches the maximum value.

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.

Moreover, the influence of the electromagnet on the magnetic sensing element can be effectively avoided by properly adjusting the installation position of the magnetic sensing element and then carrying out proper parameter control in the control element.

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 magnetic induction 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 magnetic-sensing element is electrically connected with the control element, the magnetic-sensing element is installed on one side of the needle selecting cutter head, the needle selecting cutter head comprises a permanent magnet, the permanent magnet faces the magnetic-sensing element, and the magnetic-sensing element is a Hall element.

2. The trouble shooting device of the magnetic induction type electromagnetic selector as set forth in claim 1, wherein: the number of the magnetic sensing elements is two, and the two magnetic sensing elements are respectively positioned at the left side and the right side of the rotating shaft.

3. The trouble shooting device of the magnetic induction type electromagnetic selector as set forth in claim 1, wherein: the alarm is electrically connected with the control element.