CN113479685A

CN113479685A - Limiting device

Info

Publication number: CN113479685A
Application number: CN202110533372.0A
Authority: CN
Inventors: 姚龙宇; 吴伟; 吴斌; 吴警
Original assignee: Zhejiang Hailide New Material Co ltd
Current assignee: Zhejiang Hailide New Material Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-10-08

Abstract

The invention discloses an automatic device, in particular to a limiting device, which comprises an electric eye device and an electric eye limiting circuit, wherein a limiting rod is additionally arranged on the outer side of the electric eye device, and is connected with a limiting switch; the limit switch is connected with the electric eye limit circuit; the electric eye limiting circuit comprises a photoelectric sensor U1, a photoelectric sensor U2, a control box K4, a junction box XS4 and an analog input module U3, wherein 2 feet, 3 feet, 4 feet and 7 feet of the photoelectric sensor U1 are respectively connected with 1 foot, 2 feet, 3 feet and 4 feet of the control box K4, 4.2 feet and 4.4 feet of the control box K4 are respectively connected with 4 feet and 8 feet of the junction box XS4, and meanwhile 4 feet of the junction box XS4 are connected with an A + foot of the analog input module U3. The invention has the advantages that: when the electric eye failure product deviates, the limit switch is triggered by the edge of the product, so that 20mA current is generated and transmitted to the analog input module U3, and the analog input module U3 receives a current signal to correct the deviation of the cloth roll, so that the phenomenon that the product runs out of the roller to cause halt is avoided.

Description

Limiting device

Technical Field

The invention relates to the technical field of automatic devices, in particular to a limiting device with an electric eye limiting circuit.

Background

In the production process of the product cloth, due to various reasons, such as dense and sparse cloth warps, electric eye damage and reflector damage, the cloth edge is pulled out along the edge in a deviated manner, not only is the whole roll of cloth reduced, and the like, but also great safety risks are realized. At present, a similar electric eye limiting circuit is also arranged on the market, but when the electric eye is easily blocked by foreign matters or the reflecting plate is insensitive, the cloth edge is pulled out of the roller. The whole line is stopped, the whole roll of cloth is lowered, and the like, and great safety risk is also caused. Especially, when the wide cloth is produced and manufactured, the situation is more difficult to control, and the conventional automatic control circuit and the device cannot realize safe production.

Disclosure of Invention

The invention aims to provide a limiting device which is improved on the basis of the existing device and comprises a mechanical part and an electric eye limiting circuit matched with the mechanical part, when an electric eye failure product deviates, the edge of the product triggers a limiting switch SB1 or a limiting switch SB2, so that 20mA current is generated and transmitted to an analog input module U3, the analog input module U3 receives a current signal to correct the deviation of a cloth roll, the phenomenon that the product runs out of a roller to cause halt is avoided, and the problems in the prior art can be solved.

In order to achieve the purpose, the invention provides the following technical scheme: a limit device comprises an electric eye device (existing in the prior art and realized by photoelectricity) and an electric eye limit circuit, and is characterized in that a limit rod is additionally arranged on the outer side of the electric eye device, and a limit switch is connected with the limit rod; the limit switch is connected with the electric eye limit circuit; the electric eye limiting circuit comprises a photoelectric sensor U1, a photoelectric sensor U2, a control box K4, a junction box XS4 and an analog input module U3, wherein a pin 2, a pin 3, a pin 4 and a pin 7 of the photoelectric sensor U1 are respectively connected with a pin 1, a pin 2, a pin 3 and a pin 4 of the control box K4, a pin 4.2 and a pin 4.4 of the control box K4 are respectively connected with a pin 4 and a pin 8 of the junction box XS4, and a pin 4 of the junction box XS4 is connected with a pin A + of the analog input module U3;

the 2 feet, the 3 feet, the 4 feet and the 7 feet of the photoelectric sensor U2 are respectively connected with the 1 foot, the 2 feet, the 3 feet and the 4 feet of the control box K4, the 2.2 feet and the 2.4 feet of the control box K4 are respectively connected with the 2 feet and the 6 feet of the junction box XS4, and meanwhile, the 2 feet of the junction box XS4 are connected with the B + foot of the analog quantity input module U3.

Preferably, the

pins

2 and 3 of the photo sensor U1 are further connected with a series resistor R1 and a limit switch SB1, and the

pins

2 and 3 of the photo sensor U2 are further connected with a series resistor R2 and a limit switch SB 2.

Preferably, the resistance of the resistor R1 and the resistor R2 is 1200 Ω.

Preferably, the electric eye device of the limiting device is provided with a matched photoelectric sensor and a matched reflecting plate.

Compared with the prior art, the invention has the following beneficial effects:

this electric eye limit circuit installs series resistance R1 and limit switch SB1 additional in original circuit system, series resistance R2 and limit switch SB2, make when the bad product off tracking of electric eye, the limit switch SB1 or limit switch SB2 are triggered to the product limit portion, thereby produce 20 mA's electric current and transmit for analog input module U3, analog input module U3 obtains current signal and rectifies a deviation to the yardage roll, in order to avoid the product to run to the roller outside and cause the shut down, therefore can effectively ensure production safety.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a circuit diagram of the present invention.

FIG. 2 is a schematic view of the structure of the apparatus of the present invention

1. Limiting rod 2, limiting switch 3, photoelectric sensor 4, reflector 5 and roller

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 and 2, a limiting device includes an electric eye device and an electric eye limiting circuit, wherein a limiting rod 1 is additionally installed at the outer side of the electric eye device, and the limiting rod 1 is connected with a limiting switch 2; the limit switch 2 is connected with the electric eye limit circuit; the electric eye limiting circuit comprises a photoelectric sensor U1, a photoelectric sensor U2, a control box K4, a junction box XS4 and an analog input module U3, wherein a pin 2, a pin 3, a pin 4 and a pin 7 of the photoelectric sensor U1 are respectively connected with a pin 1, a pin 2, a pin 3 and a pin 4 of the control box K4, a pin 4.2 and a pin 4.4 of the control box K4 are respectively connected with a pin 4 and a pin 8 of the junction box XS4, and a pin 4 of the junction box XS4 is connected with a pin A + of the analog input module U3;

the 2 feet, the 3 feet, the 4 feet and the 7 feet of the photoelectric sensor U2 are respectively connected with the 1 foot, the 2 feet, the 3 feet and the 4 feet of the control box K4, the 2.2 feet and the 2.4 feet of the control box K4 are respectively connected with the 2 feet and the 6 feet of the junction box XS4, and meanwhile, the 2 foot of the junction box XS4 is connected with the B + foot of the analog quantity input module U3.

Because the 2 feet and the 3 feet of the photoelectric sensor U1 are also connected with the series resistor R1 and the limit switch SB1, the 2 feet and the 3 feet of the photoelectric sensor U2 are also connected with the series resistor R2 and the limit switch SB2, and the resistance values of the resistor R1 and the resistor R2 are 1200 omega, when the limit switch SB1 or the limit switch SB2 is closed, 20mA current can be generated and input into the analog input module U3 through the control box K4 and the junction box XS 4. The photoelectric sensor 3 is matched with the reflector 4, so that photoelectric sensing and electric action can be realized.

This electric eye limit circuit installs series resistance R1 and limit switch SB1 additional in original circuit system, series resistance R2 and limit switch SB2, make when the bad product off tracking of electric eye, the limit switch SB1 or limit switch SB2 are triggered to the product limit portion, thereby produce 20 mA's electric current and transmit for analog input module U3, analog input module U3 receives current signal and rectifies a deviation to the yardage roll, in order to avoid the product to run to outside roller 5 and cause the shut down, therefore can effectively ensure production safety.

In summary, the following steps: this electric eye limit circuit, when the bad product off tracking of electric eye, the gag lever post 1 is triggered at the product limit portion, then touch limit switch 2, wherein spacing shape 2 includes limit switch SB1 or limit switch SB2, thereby produce 20 mA's electric current and transmit for analog input module U3, analog input module U3 receives the current signal and rectifies a deviation to the yardage roll, in order to avoid the product to run to the roller 5 outside and cause the shut down, therefore can effectively ensure production safety, solve prior art problem.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A limiting device comprises an electric eye device and an electric eye limiting circuit, and is characterized in that a limiting rod (1) is additionally arranged on the outer side of the electric eye device, and a limiting switch (2) is connected with the limiting rod; the limit switch (2) is connected with the electric eye limit circuit; the electric eye limiting circuit comprises a photoelectric sensor U1, a photoelectric sensor U2, a control box K4, a junction box XS4 and an analog input module U3, wherein a pin 2, a pin 3, a pin 4 and a pin 7 of the photoelectric sensor U1 are respectively connected with a pin 1, a pin 2, a pin 3 and a pin 4 of the control box K4, a pin 4.2 and a pin 4.4 of the control box K4 are respectively connected with a pin 4 and a pin 8 of the junction box XS4, and a pin 4 of the junction box XS4 is connected with a pin A + of the analog input module U3;

2. A spacing device according to claim 1, wherein: the 2 feet and the 3 feet of the photoelectric sensor U1 are also connected with a series resistor R1 and a limit switch SB1, and the 2 feet and the 3 feet of the photoelectric sensor U2 are also connected with a series resistor R2 and a limit switch SB 2.

3. A spacing device according to claim 2, wherein: the resistance of the resistor R1 and the resistor R2 is 1200 omega.

4. A spacing device according to claim 1, wherein: the electric eye device is provided with a matched photoelectric sensor (3) and a reflector (4).