CN205594183U - Safe grating - Google Patents

Safe grating Download PDF

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Publication number
CN205594183U
CN205594183U CN201521089739.0U CN201521089739U CN205594183U CN 205594183 U CN205594183 U CN 205594183U CN 201521089739 U CN201521089739 U CN 201521089739U CN 205594183 U CN205594183 U CN 205594183U
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China
Prior art keywords
optical devices
optical
cable
grating
devices
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CN201521089739.0U
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Chinese (zh)
Inventor
格奥尔格·普拉斯贝格
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Sick AG
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Sick AG
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00Prospecting or detecting by optical means
    • G01V8/10Detecting, e.g. by using light barriers
    • G01V8/20Detecting, e.g. by using light barriers using multiple transmitters or receivers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16PSAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P3/00Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
    • F16P3/12Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine
    • F16P3/14Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact
    • F16P3/144Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact using light grids

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Mechanical Engineering (AREA)
  • Optical Communication System (AREA)

Abstract

The utility model relates to safe grating with the optical devices of favourable wiring, wherein this grating includes: a optical devices, its controller that has a plurality of optical emitters and be used for the optical emitter, the 2nd optical devices, its evaluation device who has a plurality of optical receivers and be used for the received signal of optical receiver, wherein the 2nd optical devices is relative with a optical devices for an optical emitter respectively with an optical receiver relative and its to constitute transmitter / receiver respectively right, the processing apparatus of outside and the cable junction that power supply unit is used for a optical devices and the 2nd cable junction who is used for the 2nd optical devices, communication connection between the optical devices, output on the 2nd optical devices, it is used for according to received signal output safety signal, a cable junction is connected to a optical devices outside processing apparatus and power supply unit and has the power supply line and communication channel, the 2nd cable junction is connected to the 2nd optical devices and has the power supply line.

Description

Safe grating
Technical field
This utility model relates to a kind of safe grating.
Background technology
This type of safe grating being used for safe practice is such as used to protection can cause the machine of danger, such as bender, stamping machine, cutting equipment, welding robot and similar machine.Wherein, safe grating can prevent from entering deathtrap without permission, and mode is whether the protection zone that monitoring safe grating is crossed over is endangered by object.If protection zone is compromised, safe grating will export the most safety-related switching signal, and it can be such as the shutdown signal sending the machine that can cause danger.This type of must reliably run as the safe grating of safety sensor and therefore meet higher safety requirements, such as, meet equipment standard EN61496 of electrically susceptible preventer (BWS) and meet in the application and standard EN13849 of machine safety.
Grating is generally made up of two Optical devices; in Optical devices, wherein it is disposed with a series of optical transmitting set and in another Optical devices, is disposed with corresponding a series of optical receiver, so that single emitter and receptor toward each other and form the protection zone of grating in couples in-between.Therefore, this grating is also referred to as " multi beam grating ".When at least one beam broken, can be detected by least one optical receiver, be achieved in output safety switching signal.Do not occur what light-receiving typically identified as follows, i.e. in a threshold value defined in receptor electronic device, exceed this threshold value when protection zone have no occluder, and not over this threshold value during beam broken.As a rule, receiving signal can be exaggerated in acceptor circuit, and compares with threshold value in apparatus for evaluating subsequently.
As a rule, the Optical devices that the two is relative are connected with controller (such as machine controller) by cable respectively, in order on the one hand supply energy and transmit information on the other hand, such as, transmit security-related signal or diagnosis data.Additionally, the two device must also be able to communicate with one another with control lock in time, it is used for activating optical transmitting set the most simultaneously and being positioned at the optical receiver of offside accordingly.Optical communication can be carried out or via a pair emitter/receiver to being also carried out optical communication by electricity, radio, optical fiber with wired forms.
But the most each device is required for a cable powers.Owing to transmitter unit and acceptor unit are usually placed in the offside of entrance, therefore these unit connect single power line respectively.If but it is connected to the switch cubicle of grating on it apart from far, then may more reasonably, piece cable of guiding to grating also provides electric current and voltage and from there through another root cable to transmitter unit offer electric current and voltage (DE102011005771A1) by this cable to acceptor unit.This order, i.e. from switch cubicle to acceptor unit and therefrom to transmitter unit, it appears that be rational, because acceptor unit also can provide safety switch signal, this switching signal must be transferred to switch cubicle.So guiding signal via the power line in single cable subsequently.The most this situations below that is arranged in is disadvantageous, and i.e. switch cubicle is near transmitter unit and away from the situation of acceptor unit.
Utility model content
It is from prior art task of the present utility model, it is provided that a kind of substituting solution.This task is achieved by safe grating as described below.
According to safe grating described in the utility model, including:
-the first Optical devices, it has multiple optical transmitting set and the controller for optical transmitting set,
-the second Optical devices, it has multiple optical receiver and the apparatus for evaluating receiving signal for optical receiver, wherein the second Optical devices and the first Optical devices are relative so that an optical transmitting set is relative with an optical receiver respectively and it respectively constitutes emitter/receiver pair
-outside processing means and electric supply installation,
-connect for the first cable connection of the first Optical devices and the second cable for the second Optical devices,
Communication connection between-Optical devices,
Outfan on-the second Optical devices, it is used for according to receiving signal output safety signal,
First Optical devices are connected to outside processing means and electric supply installation and have supply lines and communication channel by the-the first cable connection,
Second Optical devices are connected to the first Optical devices and have supply lines by the-the second cable connection.
In this form of implementation, an only cable leads to grating from switch cubicle, i.e. leads to transmitter unit, and the safety signal wherein receiving unit generation is delivered to transmitter unit via communication connection and can be transferred to switch cubicle via the first cable connection therefrom.Therefore, by laying the fewest cable realize all functions of safe grating from the switch cubicle being positioned near transmitter unit to transmitting and reception unit.
Advantageously, the first Optical devices have the first cable connector connected for the first cable and the second cable connector connected for the second cable.Thus avoiding using single T-connection, these T-connection additionally to be designed for the special duty of grating.
Between Optical devices, for synchronization purpose or be also used for transmit safety signal communication can with simple mode via second cable connect realize through a cable.
Communication between two Optical devices or can also wirelessly realize.Especially, can carry out optical communication, wherein can realize optical communication via in light beam, described light beam also defines the protection zone of grating.Or single, to be only used for communication light beam can also be set.
Accompanying drawing explanation
Below will by embodiment and with reference to accompanying drawing come the utility model is elaborated.Figure shows:
Fig. 1 is the schematic diagram according to grating described in the utility model.
Detailed description of the invention
Shown in Fig. 1, having the first Optical devices 14 for monitor protection zone 12 according to safe grating 10 of the present utility model, these first Optical devices 14 have a series of optical transmitting set 16 being arranged side by side.Optical transmitting set 16 is controlled by controller 18.Optical transmitting set 16 sends light beam 20, and these light beams are received by the second corresponding optical receiver 22 of Optical devices 24.Each optical transmitting set 16 and corresponding offside optical receiver 22 are constituted a pair, so that it is such right to constitute altogether many, its light beam 20 is parallel, and it crosses over protection zone 12.Optical receiver 22 provides according to the light received respectively and receives signal, and this reception signal is exaggerated in receiving electronic installation 25 and is estimated by apparatus for evaluating 26.According to receiving signal, when there being object to invade protection zone 12 without permission, when wherein in light beam 20 is interrupted, outfan 28 can provide safety signal.This safety signal can be such as the shutdown signal sending dangerous machine.
Additionally, also have processing means and the electric supply installation 40 of outside according to grating 10 described in the utility model, it such as can be with remote arrangement in a switch board.Outside processing means and electric supply installation 40 are used for Optical devices 14 and 24 power supply and for processing the information sent from Optical devices, and this information can be diagnosis data but it also may particularly safety signal.
To this end, grating 10 has the first cable connection 42 and the second cable connects 44.First cable connects 40 processing meanss that first Optical devices 14 are connected to outside and electric supply installation 40 and has supply lines and communication channel.Second connects cable 44 is connected to the first Optical devices 14 by the second Optical devices 24 and has supply lines.
Advantageously, the first Optical devices have the first cable connector 46 for the first cable connection 42 and the second cable connector 48 for the second cable connection 44.
Communication connection 30 is there is between Optical devices 14 and 24.This connection may be used for multiple purpose.Such as it is necessary to operate grating, relative emitter 16 and receptor 22 run simultaneously.Described synchronization realizes via communication connection 30.Safety signal finally must be delivered to processing means and electric supply installation 40.To this end, first pass it to the first Optical devices 14 by communication connection 30 and be delivered to processing means and electric supply installation 40 via the first cable connection 42 therefrom.
Two arrows on reference number 30 are intended to explanation, and communication connection can realize by different modes.Simplest mode is, uses the second cable connect and be additionally provided with communication channel wherein in addition to supply lines.
Or may also set up equipment 32 and 34, it constitutes the transmitter unit/reception unit of dedicated radio link in the embodiment shown.
Or even can be connected by optics, be that self constitutes communication channel 30 especially by emitter/receiver.

Claims (6)

1. a safe grating, including:
-the first Optical devices, it has multiple optical transmitting set and the controller for described optical transmitting set,
-the second Optical devices, it has multiple optical receiver and the apparatus for evaluating receiving signal for described optical receiver, wherein said second Optical devices are relative with described first Optical devices so that an optical transmitting set is relative with an optical receiver respectively and respectively constitutes emitter/receiver pair
-outside processing means and electric supply installation,
-connect for the first cable connection of the first Optical devices and the second cable for the second Optical devices,
Communication connection between-Optical devices,
Outfan on-the second Optical devices, it is used for according to receiving signal output safety signal,
It is characterized in that,
-described first cable connects and described first Optical devices is connected to the processing means of described outside and electric supply installation and has supply lines and communication channel,
Described second Optical devices are connected to described first Optical devices and have supply lines by-described second cable connection.
2. grating as claimed in claim 1, it is characterised in that described first Optical devices have the first cable connector connected for described first cable and the second cable connector connected for described second cable.
3. grating as claimed in claim 1 or 2, it is characterised in that described second cable connection has at least for transmitting the communication channel of described safety signal.
4. grating as claimed in claim 1 or 2, it is characterised in that carry out radio communication between described first Optical devices and described second Optical devices.
5. grating as claimed in claim 1 or 2, it is characterised in that carry out optical communication between described first Optical devices and described second Optical devices.
6. grating as claimed in claim 5, it is characterised in that described optical communication is only by a realization in light beam, and described light beam also defines the protection zone of grating.
CN201521089739.0U 2015-01-14 2015-12-24 Safe grating Active CN205594183U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202015100154.1U DE202015100154U1 (en) 2015-01-14 2015-01-14 Safety Light Curtain
DE202015100154.1 2015-01-14

Publications (1)

Publication Number Publication Date
CN205594183U true CN205594183U (en) 2016-09-21

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CN (1) CN205594183U (en)
DE (1) DE202015100154U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109959973A (en) * 2017-12-14 2019-07-02 埃利斯塔有限公司,奥斯特菲尔登(德国),巴特拉加茨分公司 Method for operating a grating arrangement

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105423112A (en) * 2016-01-26 2016-03-23 深圳市华星光电技术有限公司 Safe grating with adjusting device and equipment with safe grating
DE102018119847B4 (en) * 2018-08-15 2022-05-05 Sick Ag sensor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5465563B2 (en) 2010-03-19 2014-04-09 株式会社キーエンス Multi-axis photoelectric sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109959973A (en) * 2017-12-14 2019-07-02 埃利斯塔有限公司,奥斯特菲尔登(德国),巴特拉加茨分公司 Method for operating a grating arrangement

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Publication number Publication date
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