CN110505939A - Grinding device - Google Patents

Grinding device Download PDF

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Publication number
CN110505939A
CN110505939A CN201880024411.0A CN201880024411A CN110505939A CN 110505939 A CN110505939 A CN 110505939A CN 201880024411 A CN201880024411 A CN 201880024411A CN 110505939 A CN110505939 A CN 110505939A
Authority
CN
China
Prior art keywords
abrasive band
grinding device
detector
transmitter
abrasive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201880024411.0A
Other languages
Chinese (zh)
Inventor
T·贝塔斯曼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heroic Drilling Equipment Co Ltd
Homag Bohrsysteme GmbH
Original Assignee
Heroic Drilling Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heroic Drilling Equipment Co Ltd filed Critical Heroic Drilling Equipment Co Ltd
Publication of CN110505939A publication Critical patent/CN110505939A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/04—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces
    • B24B21/12—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces involving a contact wheel or roller pressing the belt against the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/10—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving electrical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/008—Machines comprising two or more tools or having several working posts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/04—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces
    • B24B21/10—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces involving a rigid member, e.g. pressure bar, table, pressing or supporting the belt over substantially its whole span
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/04—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces
    • B24B21/12—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces involving a contact wheel or roller pressing the belt against the work
    • B24B21/14—Contact wheels; Contact rollers; Belt supporting rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/18—Accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/18—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the presence of dressing tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/007—Cleaning of grinding wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/02—Devices or means for dressing or conditioning abrasive surfaces of plane surfaces on abrasive tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/06—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor involving conveyor belts, a sequence of travelling work-tables or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/28—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding wood

Abstract

The present invention relates to a kind of for processing the grinding device of especially plate workpiece (W).Grinding device includes the transmitter (31) for emitting electromagnetic wave on the direction of abrasive band (10) and the detector (32) for detecting the electromagnetic wave by abrasive band (10) reflection.

Description

Grinding device
Technical field
The present invention relates to a kind of grinding device for being used for workpieces processing, especially plate workpiece, the workpiece for example, at least portions Dividing ground includes timber, derivative Wood products, such as wood-fibred etc..In some embodiments, grinding device is that wide abrasive band is beaten Grinding machine.
Background technique
The general requirement of grinding device is, to the abrasive band for processing the workpiece with the undefined cutting edge of geometry Monitored or assessed its abrasion.If Wear Mechanism of Abrasive Belt, and the time that the state is not detected or detects is too late, then dress of polishing Faulty or underproof abrasive band will be continued to use by setting, to generate waste product.
In general, the degree of wear is by artificial and visually determine.When closing grinding device, abrasive band is checked by worker, and assessment is It is no to replace abrasive band.It is this to assess the experience level for depending greatly on worker, therefore it is easy error.Based on processing work The assessment of part is also unfavorable, because once confirmation processing result is unqualified, has just produced waste product.Now it is necessary to stop Grinding device, it is necessary to abrasive band is replaced, even if production procedure simply cannot faultlessly accomplish this point.
Therefore, industrial alternative solution is to replace abrasive band in early stage.This means that even if in some cases under It is secondary safeguarded before can still continue to use abrasive band, can also replace abrasive band.Due to unpredictable or at least cannot be reliably pre- The interval in replacement abrasive band is surveyed, therefore precautionary measures described herein mean more frequently to replace abrasive band.It is associated at This will be considered as the acceptable price paid for the maintenance quality of production.
Replacement abrasive band, which usually has the disadvantages that, must at least stop grinding device and may stop the entire production line. This mutually conflicts with the requirement for reducing downtime as far as possible.
In addition, worker must assure that be replaced using correct abrasive band when replacing abrasive band.For abrasive band, Ke Yitong Crossing label appropriate has a number to ensure this point, such as on surface of the abrasive band back to abrasive grain face.It can also will be different The abrasive band of color puts aside, so that worker can specifically identify the abrasive band with certain particle size, and correspondingly uses it.
But since grinding device uses in the working environment of more dirt, so being constantly present abrasive band in known systems On the danger that is hidden and therefore cannot correctly identify of identification label.
Summary of the invention
The object of the present invention is to provide a kind of grinding device for being machined out to workpiece and one kind for identification The method in abrasive band and/or its state, wherein should be according to the preferred state of wear needed to identify abrasive band.
The theme of claim 1 provides a kind of corresponding grinding device.It describes in the dependent claims further Preferred embodiment.
One thought of behind of the present invention is using the sensor for electromagnetic radiation, especially radar sensor, to know Other abrasive band and/or determining its abrasion/tearing are horizontal.In this respect it has been shown that the testing result of sensor, especially in abrasive band The detection intensity of the radiation of upper reflection, provide the information of the granularity or roughness about abrasive band, and is further using On the basis of can detecte the quality of the band that shakes out and whether reduced due to abrasion.
Claim 1 provides a kind of grinding device for workpieces processing, wherein the grinding device is preferably used for Process the workpiece made of timber or derivative Wood products.Grinding device includes for keeping the fixation device in abrasive band, being used for Emit the transmitter of electromagnetic wave and the detector for detecting the electromagnetic wave by abrasive band reflection on the direction in abrasive band.
In this way, can be with the current Quality in objective evaluation abrasive band.This can also be completed when grinding device is run, to reduce Downtime simultaneously reduces quantity scrapped.
Furthermore, it is possible to determine whether abrasive band cleaning unit may can not work normally.In conjunction with other numbers in bruting process According to (for example, actual (real) thickness of monitoring polishing workpiece), the prediction for adjusting and updating downtime can be continued.For example, identification one The repeated wear of side is it can be concluded that wrong or unfavorable workpiece geometries conclusion is arranged about machine.
According to the present invention, grinding device can have contact roller unit, the sanding unit with pressure pad or laterally polishing Aggregate comprising for keeping the fixation device in abrasive band.According to the design of sanding unit, fixed device can have one, two A or more roller guides abrasive band.In addition, roller can be aligned, so that abrasive band is polished work transverse to or along the direction of relative motion Part.
According to a preferred embodiment, transmitter and detector combination are in a sensor unit.This makes it possible to The radar sensor of robust is provided.
Transmitter and detector can also extend transverse to the direction of motion in abrasive band, wherein it may further be preferable that transmitting Device and detector can monitor the state in abrasive band on the entire width in abrasive band.Especially, transmitter and detector are transverse to fortune Dynamic direction extends on the entire width in abrasive band.
Alternatively, it is desirable to transmitter and detector can the direction of motion along guiding piece transverse to abrasive band move. Therefore sensor unit including transmitter and detector can keep relative compact.
According to another embodiment, it is desirable to which grinding device includes delivery element, especially conveyer belt, to be used for phase For abrasive band travelling workpiece.Plate workpiece can be mobile with such delivery element, as a result, it is engaged simultaneously with abrasive band It is processed.
The fixation device of sanding device may include that the first slewing rollers and the second slewing rollers, wherein transmitter and detector are directed toward The a part in the abrasive band between slewing rollers, or be directed toward abrasive band and be placed on the abrasive band region on one of slewing rollers.Hair Emitter and detector are oriented to make it direction towards abrasive band.
Fixed device can also include other slewing rollers, such as upper slewing rollers and two steerings adjacent with delivery element Roller is placed with the pressure pad with polishing pad between the two slewing rollers.
It has been proved that due to space reasons, a part in the abrasive band for being directed toward transmitter and detector between slewing rollers Position is advantageous.In addition, abrasive band is rendered as being a relatively flat surface in this region, so as to improve the assessment knot in abrasive band Fruit.
Alternatively, as already mentioned, transmitter and detector can also be set in the region of upper slewing rollers, so that it The direction towards abrasive band region.The advantages of installing in this region is that abrasive band is relatively smooth guided.
According to another embodiment, grinding device includes display, for showing the testing result of detector.For example, aobvious Show that device can be a part of the description on screen or in intelligent glasses, or can be shown by projector.Display can example Detection intensity as shown the wave reflected by abrasive band.
In one embodiment, a kind of controller is provided, which is arranged to will test the testing result of device Especially it is compared by the detection intensity of wave that abrasive band is reflected with the identification data in abrasive band.The identification data are for example related to abrasive band Granularity, the granularity in the abrasive band is divided into certain classifications.It has been shown that can be examined based on varying strength/reflectivity of electromagnetic wave Survey different granularities, therefore it can be concluded that the corresponding abrasive band about insertion conclusion.
According to another embodiment, grinding device includes for making a sound or the warning device of visual signal.If inspection The abrasive band for measuring mistake or abrasion, then can trigger the warning device.This improves operating reliability, avoids the production of waste product It is raw.
According to another embodiment, grinding device further includes abrasive band cleaning unit.For example, this can be abrasive band air blowing dress It sets.According to modification, it is preferable that the operation of abrasive band cleaning unit is controlled or monitored based on the testing result of detector.Therefore, may be used To improve the cleaning effect of the abrasive band cleaning unit for certain abrasive bands, and cleaning effect is then reduced for other abrasive bands, thus Reduce energy consumption.Furthermore, it is possible to identify whether abrasive band cleaning unit works normally, to further increase operating reliability.
In addition, the present invention relates to a kind of methods for detecting abrasive band, method includes the following steps: relative to electromagnetic wave Transmitter moves abrasive band；Emit electromagnetic wave from transmitter to abrasive band；And the electromagnetic wave reflected by abrasive band is detected using detector.
Abrasive band can objectively be assessed in the process of running in this way.About other advantages, above description is please referred to.
In one embodiment, transmitting and detection should be operated with the zero load during the workpieces processing of abrasive band or in abrasive band Period carries out.Therefore, it is not necessary to stop abrasive band, this can reduce downtime.
It, can be with especially by the detection intensity of the wave of abrasive band reflection it is further preferred that the testing result based on detector Detect the granularity in abrasive band.Based on these results, it is therefore possible to obtain the conclusion about abrasive band quality and state.
This method can comprise the further steps of: the testing result for showing detector over the display, especially anti-by abrasive band The detection intensity for the wave penetrated.This enables worker to identify the state which abrasive band and/or abrasive band currently in use is used.
According to another modification, method includes the following steps: specified if identifying that determining abrasive band granularity does not correspond to Value exports vision perhaps if identifying that the intensity detected or reflectivity are less than first threshold or are greater than second threshold Or audible alert signal.The measure allows to further increase operating reliability.
If the surface in abrasive band is with respect to " coarse " or with coarse granularity, radiating (preferably radar emission) can reflect To biggish region.On the other hand, if the surface relative smooth in abrasive band, in other words, if Wear Mechanism of Abrasive Belt than more serious, The major part of radiation reaches detector.Therefore, detected intensity is higher than rougher or more structuring the surface in abrasive band.
Therefore, based on the radiation intensity for reaching detector, it can be deduced that about the conclusion of " roughness ", therefore it can be concluded that The conclusion of abrasive band surface state.
Furthermore, it is possible to identify other operation datas in abrasive band, for example, abrasive band movement velocity or abrasive band during operation It skids.
The data can be handled in the controller of grinding device, and the operation for monitoring grinding device.
In addition to it has been mentioned that the advantages of other than, grinding device according to the present invention and mention according to the method for the present invention therefore also A possibility that having supplied improved quality to control.Furthermore, it is possible to obtain the additional number about process with relatively cheap measure According to, and during the data usually can be included in possible maintenance.
Detailed description of the invention
Fig. 1 is the schematic diagram of grinding device, has detected that the concentrated wear in its abrasive band.
Fig. 2 is the schematic side elevation of grinding device shown in Fig. 1.
Fig. 3 shows the grinding device for identifying certain seed type abrasive band.
Fig. 4 is the schematic diagram for identifying the grinding device in another seed type abrasive band.
Fig. 5 shows second embodiment of the present invention.
Fig. 6 shows third embodiment of the present invention.
Specific embodiment
The preferred embodiment of the present invention is described below with reference to the accompanying drawings, so that the present invention is illustrated by way of example.Herein The further modification for the certain single features quoted in context can be combined respectively to create other embodiment.
Referring to Figures 1 and 2, the grinding device of embodiment according to the present invention is described below.Such grinding device can For producing or processing furniture element or element for structural detail industry.
As the example of delivery element, grinding device includes the conveyer belt 20 of rotation, makes plate workpiece W along direction of transfer F is mobile.This workpiece W is for example made of timber or derivative Wood products.
Sanding unit 1 is vertically situated at 20 top of conveyer belt, and has upper roller 15 and lower roll 16, and abrasive band 10 surrounds institute It states upper roller 15 and lower roll 16 rotates.In this illustrative embodiments, sanding unit 1 is so-called contact roller unit.
Abrasive band 10 is engaged with the workpiece W moved together with conveyer belt 20, and one of the surface by processing removal workpiece W Part.Alternatively, polishing process can be executed.
Grinding device is illustrated only in attached drawing.This means that further including the polishing dress for including a upper roller and two lower rolls It sets.It can also be purely using lateral sander as the alternative exemplary of wide belt grinder.
In this illustrative embodiments, the sensor unit 30 between upper roller and lower roll includes for emitting electromagnetism The transmitter 31 of wave and detector 32 for detecting the electromagnetic wave reflected by abrasive band 10.Sensor unit 30 can also be referred to as Radar sensor.For illustrative purposes, transmitter 31 and detector 32 are shown as individual unit in the diagram.So And transmitter 31 and detector 32 can also be combined into individual unit.
Obviously, the position of sensor unit 30 can change.For example, sensor unit 30 can be placed on the upper of upper roller 15 Side.Sensor unit 30 can also be placed on to the side of upper roller 15.
According to the first possible application, it is desirable to which whether some regions that sensor unit 30 detects abrasive band 10 grind Damage.
In the example depicted in fig. 1, abrasive band 10 includes the part 10b for wearing less part 10a and serious wear.Abrasion Level may be displayed in chart (display) 40, for example, worker can read these contents of a part shown as screen. Based on chart 40, worker can identify whether some regions in abrasive band 10 have been seriously worn, so that worker be enable to determine Whether the part 10b workpieces processing W in still unworn abrasive band 10 is used.This is realized by changing insertion position.Alternatively, Worker, which can determine, needs replacing abrasive band.
In this case it is envisioned that being advised based on testing result to worker.For example, can be filled in polishing Display is issued on the screen set, display instruction expection after a certain number of machine operations needs replacing abrasive band.Therefore, This will allow grinding device predictably to operate, because worker has been able to the abrasive band for preparing to replace, such as pass through order New abrasive band.
A part as described embodiment, it is possible to during operation, i.e., still in the same of workpieces processing W When, it is detected by sensor unit 30, or during the unloaded operation of grinding device, carried out by sensor unit 30 Detection.
According to another possible application (Fig. 1 and Fig. 2), the specific abrasive band 10 for identification of sensor unit 30.Due to tool There are certain label and/or color, usually by worker " identification " abrasive band.But the shortcomings that label is that label is likely difficult to automatically It reads.Another disadvantage is that label is only placed on some position in abrasive band, and the position marked is at least necessary first It is identified by worker.If grinding device is inserted into the abrasive band of unsuitable plan processing, waste product can be generated first, until worker Until the mistake for recognizing oneself.
Utilize sensor unit 30, it now is possible to determine based on the intensity of the electromagnetic wave reflected on abrasive band detected Different granularities.
If the surface in abrasive band is larger or substantially unchanged with respect to " coarse " or its granularity, (preferably radar spoke is radiated Penetrate) biggish region can be reflected back.Therefore, the intensity detected is lower.On the other hand, if the surface smoother in abrasive band； In other words, for example, most of radiation can reach detector if Wear Mechanism of Abrasive Belt is than more serious.Therefore, detected strong Degree is higher than the abrasive band with rough surface.
Therefore, based on the radiation intensity for reaching detector, it can be deduced that about the conclusion of " roughness ", therefore it can be concluded that The conclusion of abrasive band surface state.
Therefore, it is possible to provide the information about the abrasive band being actually inserted into the controller of grinding device.The information can be with It is displayed on the screen, such as is shown in chart 40, to provide the information in the abrasive band in relation to being inserted into worker.If next All over the abrasive band for identifying granularity mistake, then warning (vision or the sense of hearing) can also be exported.
Alternatively, control system of machine can be will forward information to, so as to the sand for carrying out and being currently inserted on grinding device With corresponding setting.
Fig. 3 shows grinding device according to first embodiment, wherein due to showing relatively in display 40 Low intensity, therefore detect the type in abrasive band 10.In Fig. 4, it is already inserted into different abrasive bands 10, it means that aobvious Show and shows the varying strength of entire abrasive band width in device 40.
For example, especially if can assume fringe region according to usage type, there are original particle sizes, and central area is sent out Raw abrasion or tearing, then can carry out the qualitative evaluation in abrasive band based on fringe region compared with the central area of abrasive band.
Second embodiment of the present invention is shown in FIG. 5.Described in the context of first embodiment Corresponding or similar elements have similar or identical appended drawing reference.
In the context of second embodiment, instead of sanding unit 1, it is provided with sanding unit 1 '.Instead of lower rollers 16, Sanding unit 1' has aligning roller 16a, slewing rollers 16b and pressure pad 16c.Pressure pad 16c is used for certain parts in abrasive band 10 It is pressed against on the workpiece (being not shown here) for being placed on conveyer belt 20 and being moved together with conveyer belt 20.It alternatively, can be with By aligning roller 16a being adjusted accordingly on the direction of conveyer belt to polish in aligning roller region.
Sanding unit 1 ' has sensor unit 30 '.Sensor unit 30 ' includes track 33, transmitter 31 ' and detector 32 ' can move along track 33, wherein in the present embodiment, transmitter 31 ' and 32 ' group of detector are combined into individual unit.
Only as an example, showing possible display result in display 40'.Once in this illustrative embodiment Movable units including transmitter 31' and detector 32' along abrasive band 10' travel specific part (in Fig. 5 from a left side to It is right), so that it may the region scanned is read on display 40'.
Fig. 6 shows third embodiment of the present invention.Similar to the first and second embodiments, third embodiment tool There is the conveyer belt 20 for travelling workpiece W.In addition, third embodiment has sanding unit 1 according to first embodiment, root Sanding unit 1 ' and lateral belt sanding unit 1 " according to second embodiment.
In this illustrative embodiments, there are two abrasive bands 10 " for the lateral tool of belt sanding unit 1 ", they pass through appropriate Slewing rollers are guided.In addition, providing sensor unit 30 " and corresponding display 40 " for each abrasive band 10 ".
Third embodiment, which is intended to show, can combine various sanding units and can be used to be discussed by display Sanding unit, to carry out previously discussed assessment to each abrasive band.
In this respect, it is evident that, thus it is possible to vary the sequence of sanding unit, to create other embodiments.It can also think To the embodiment only having there are two above-mentioned sanding unit.
Furthermore, it is to be understood that can be by various display combinations at a view, for example, being combined into the prison for monitoring sander Display on visual organ.
User can read the value in various abrasive bands from display 40 shown in fig. 6,40', 40 ".In particular, showing polishing The abrasive band of unit 1 part wears, and show the completely worn out fact in an abrasive band of sanding unit 1 '.According to display Device 40', because showing relatively high intensity according to display 40', so the abrasive band 10' of sanding unit 1' is in good shape State.
Display 40,40', 40 " can be respectively displayed on screen, can also share display.

Claims (15)

1. a kind of grinding device for workpieces processing, comprising:
For keeping the fixation device (15,16 in abrasive band (10,10', 10 ")；15a, 16a, 16b),
Emit the transmitter (31,31', 31 ") of electromagnetic wave for the direction along the abrasive band (10),
For detecting the detector (32,32', 32 ") of the electromagnetic wave by the abrasive band (10,10', 10 ") reflection.
2. grinding device according to claim 1, which is characterized in that the transmitter (31) and the detector (32) are horizontal To in the direction of motion extension of the abrasive band (10,10', 10 "), preferably extend on the entire width in abrasive band or described Transmitter (31') and the detector (32') can be moved along guiding piece (33) transverse to the moving direction of the abrasive band (10') It is dynamic.
3. grinding device according to any one of the preceding claims, which is characterized in that the grinding device includes conveying Element (20), especially conveyer belt, delivery element (20) are used for relative to the abrasive band (10,10', 10 ") the mobile workpiece (W)。
4. grinding device according to any one of the preceding claims, which is characterized in that the fixed device includes the One slewing rollers (15；15a) and the second slewing rollers (16；16a, 16b), wherein preferably, being additionally provided with for pushing abrasive band to work The pressure pad (16c) of part.
5. grinding device according to claim 4, which is characterized in that the transmitter (31) and detector (32) are directed toward position The a part in the abrasive band between the slewing rollers, or be directed toward the abrasive band and be placed on the abrasive band area on one of slewing rollers Domain.
6. grinding device according to any one of the preceding claims, which is characterized in that the grinding device has aobvious Show device (40,40', 40 "), is used to show the testing result of the detector (32,32', 32 "), the especially inspection of back wave Survey intensity.
7. grinding device according to any one of the preceding claims, which is characterized in that the grinding device includes control Device, the controller be set as by the detection intensity of the testing result especially back wave of the detector (32,32', 32 ") with The identification data in the abrasive band are compared.
8. grinding device according to any one of the preceding claims, which is characterized in that the grinding device includes being used for It makes a sound or the warning device of visual signal.
9. grinding device according to any one of the preceding claims, which is characterized in that the grinding device further includes sand Band cleaning unit, wherein preferably, control and/or monitor based on the testing result of the detector (32,32', 32 ") described in The operation of abrasive band cleaning unit.
10. grinding device according to any one of the preceding claims, which is characterized in that radar sensor is used as transmitter And detector.
11. a kind of method for checking abrasive band (10), comprising the following steps:
Emit electromagnetic wave to the abrasive band (10,10', 10 "), and
Detect the electromagnetic wave of the abrasive band (10,10', 10 ") reflection.
12. according to the method for claim 11, which is characterized in that it is described transmitting and detection using the abrasive band (10, 10', 10 ") it is carried out during workpieces processing or during the unloaded operation of the abrasive band (10,10', 10 ").
13. method described in one of 1 and 12 according to claim 1, which is characterized in that be based on the detector (32,32', 32 ") Testing result, the especially detection intensity of back wave determines the granularity and/or the degree of wear in the abrasive band (10).
14. method described in one in 1 to 13 according to claim 1, further comprising the steps of: by display (40,40', 40 ") testing result of the detector (32,32', 32 "), the especially detection intensity of back wave are shown.
15. method described in one in 1 to 14 according to claim 1, further comprising the steps of: when identifying the abrasive band When the granularity that (10,10', 10 ") determine does not correspond to designated value, or work as the detection intensity for identifying back wave less than the first threshold When value, or it is greater than second threshold, then exports vision or audible alert signal.
CN201880024411.0A 2017-04-11 2018-04-10 Grinding device Pending CN110505939A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102017206179.0A DE102017206179A1 (en) 2017-04-11 2017-04-11 grinder
DE102017206179.0 2017-04-11
PCT/EP2018/059118 WO2018189155A1 (en) 2017-04-11 2018-04-10 Grinding device

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