EP2471639A1 - Dispositif à chanfreiner d'un dispositif de traitement, dispositif de traitement et utilisation d'un dispositif de traitement - Google Patents

Dispositif à chanfreiner d'un dispositif de traitement, dispositif de traitement et utilisation d'un dispositif de traitement Download PDF

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Publication number
EP2471639A1
EP2471639A1 EP10405250A EP10405250A EP2471639A1 EP 2471639 A1 EP2471639 A1 EP 2471639A1 EP 10405250 A EP10405250 A EP 10405250A EP 10405250 A EP10405250 A EP 10405250A EP 2471639 A1 EP2471639 A1 EP 2471639A1
Authority
EP
European Patent Office
Prior art keywords
shaft
fluid
chamfering
rollers
clay
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.)
Withdrawn
Application number
EP10405250A
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German (de)
English (en)
Inventor
Marco Manzanell
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.)
Freymatic AG
Original Assignee
Freymatic AG
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 Freymatic AG filed Critical Freymatic AG
Priority to EP10405250A priority Critical patent/EP2471639A1/fr
Publication of EP2471639A1 publication Critical patent/EP2471639A1/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
    • B28B7/388—Treating surfaces of moulds, cores, or mandrels to prevent sticking with liquid material, e.g. lubricating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/08—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads
    • B28B11/0863—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads for profiling, e.g. making grooves

Definitions

  • the invention relates to a chamfering device of a processing device, a processing device and a use of a processing device.
  • the processing apparatus includes a chamfering device having a rotatable shaft and a plurality of chamfering rollers which are mounted on the shaft.
  • the shaft and chamfering rollers are made of steel.
  • the chamfering rollers are provided with a central bore whose inner diameter is substantially equal to the outer diameter of the shaft.
  • the chamfering rollers are concentric and essentially free of play placed on the shaft.
  • the chamfering rollers can be adjusted in relation to each other in the linear direction to the shaft. After adjustment, the chamfering rollers are rotatably connected to the shaft.
  • a continuous loam strand is guided by means of a conveyor on a support of the processing device. Subsequently, the continuous clay strand and the shaft offset in rotation are shifted by the Anfas worn in relation to each other, wherein each of the rotating peripheral region the inverted chamfer rolls penetrate into the material of the clay strand and, as the movement continues, draw a profiled groove across the entire width of the clay strand into the clay material.
  • the peripheral portion of the chamfering roll has a shape which is to be transferred into the material of the clay strand.
  • the groove formed by profiling into the clay material may have an angle of 90 °. According to a separation described in more detail below, this results in clay elements which have a beveling at an angle of 45 ° at their cutting edges.
  • the respective distance between the individual profile grooves to each other can be adjusted by the individual chamfering rollers are released from its rotationally fixed connection with the shaft and linearly moved along the shaft to its respective position and then again rotatably connected to the shaft.
  • the processing step of the profiling of the clay strand is followed by a processing step for separating the clay strand into individual clay elements.
  • the clay strand can be divided by individual cutting wires, which are stretched on a cutting wire frame, by passing them completely through the clay strand. This separation is done in each case centrally to the profile of the profile grooves. More specifically, the subsequent separation of the clay strand into several clay elements along the course of the deepest point of the groove is performed. This results in isolated clay elements, which are provided after separation in each case, for example, on one longitudinal side with two chamfers. This long side corresponds eg with a completed sight tile of the respective visible side.
  • Teflon In order to avoid the problems with adhesions, it is known to make the chamfering rolls from a material which allows almost no adhesions.
  • An exemplary material for this is Teflon.
  • Teflon is much softer compared to steel, for example of sand, in particular quartz sand, which is contained in the clay material, unwanted ground. Coarse-grained inclusions embedded in the clay can also deform the chamfering rolls so that the desired effect of a chamfered cut edge is no longer achieved. Tungsten chamfers are subject to high wear overall and must therefore be replaced frequently.
  • Another disadvantage is that the Teflon, in comparison to steel, for example, is very expensive and is also very time consuming to work. As a result, the proposal that chamfering rolls made of Teflon are used is generally very expensive.
  • the chamfering device according to the invention for profiling a clay strand contains a shaft and a plurality of chamfering rolls, which can be placed on the shaft, can be connected to the shaft in a rotationally fixed manner and can be adjusted relative to one another in the linear direction to the shaft.
  • the shaft includes a fluid channel, which is spirally introduced into the surface of the shaft in the latter, wherein the fluid channel is adapted, upon rotation of the shaft, a fluid which at least one Position on the shaft can be applied to this, to transfer to the majority of Anfasrollen.
  • the fluid can be transferred uniformly along the shaft to the individual chamfering rollers in a surprisingly simple manner.
  • the fluid should have a wettability which is sufficient for the fluid to flow within the fluid channel during the rotation of the shaft without dripping off the shaft.
  • the fluid is transferred in equal proportions to the chamfering rollers and is distributed there, due to the force of gravity, in particular to the peripheral regions of the chamfering rollers, which come into contact with the loam material during profiling. As a result, the fluid prevents the adhesion of clay residues at the peripheral areas from the outset.
  • the shaft and the plurality of chamfering rollers are preferably arranged relative to one another in such a way that in each case one fluid component can be transferred to a respective chamfering roller and the further fluid component can be transferred respectively to the further chamfering rollers.
  • This simple construction proves to be surprisingly reliable for evenly distributing the fluid to the respective chamfering rollers.
  • each chamfering roller includes a shoulder piece formed integrally with the chamfering roller.
  • the center bore of the shoulder piece in this case has an inner diameter which is substantially equal to the outer diameter of the shaft.
  • the shoulder piece via a releasable fastener rotatably connected to the shaft.
  • the chamfering roller can be connected to the shaft quickly and easily in a rotationally fixed manner and, in the case of an adjustment, can also be released quickly and easily from the rotationally fixed connection with the shaft and moved along the shaft axis.
  • the shoulder piece is then rotatably connected again with the help of the fastener with the shaft.
  • the entire Anfasrolle is rotatably connected to the shaft.
  • the releasable fastening element is a threaded pin, which can be screwed into a corresponding threaded bore of the shoulder piece.
  • the Anfasrolle by means of frictional connection quickly and easily rotatably connected to the shaft.
  • the chamfering rollers are preferably shaped in such a way that the respective fluid fraction transferred to the chamfering rollers can be transferred to the surface of the chamfering rollers. As a result, the volume rate at which the fluid is transferred to the individual chamfering rollers can be determined.
  • the respective shoulder pieces are tapered conically in the direction of the distal end. This embodiment allows a high efficiency in Transferring the fluid to the chamfering rollers and distributing the fluid over the entire surface of the individual chamfering rollers.
  • the chamfering rollers and the shaft are made of metal.
  • the chamfering rollers made of hardened steel and the shaft are made of stainless steel.
  • the peripheral region of the chamfering rollers penetrating into the clay material should be subjected to a special hardening process, since this area is subject to particularly high wear by sand, in particular quartz sand, in the clay material.
  • particularly advantageous coatings are advantageous, which are applied to the peripheral region of the Anfasrollen.
  • An advantage of the invention is that the chamfering rollers do not have to be made of a plastic material, for example Teflon, in order to prevent the adhesion of loam residues. This saves a total of costs.
  • the fluid channel is continuously spiraled from one end of the shaft into a direction at the surface thereof from the shaft and is configured to be at a position in a region between a first end of the shaft and a first chamfering shaft on the shaft transferable fluid upon rotation of the shaft to the other end of the shaft along the shaft to the plurality of Anfasrollen.
  • the fluid which is applied only at one end of the shaft, transferred after a short time to the individual Anfasrollen.
  • This benefits that the fluid is always uniform is passed through the fluid channel as soon as the shaft rotates.
  • the direction of rotation is decisive.
  • a drip tray may be provided below the opposite end of the shaft in which any excess fluid portion may drip off and be stored.
  • the fluid passage includes two sub-fluid passages, which are respectively spirally formed on the surface of the shaft from both ends of the shaft in two opposite directions and meet at a center position of the longitudinal axis of the shaft, the fluid passage being adapted in that the fluid, which can be applied to the shaft at two positions in each case between an end of the shaft and a respective first chamfering roller, is transferred to the plurality of chamfering rollers during rotation from the shaft towards the center position along the shaft.
  • the fluid passage which can be applied to the shaft at two positions in each case between an end of the shaft and a respective first chamfering roller, is transferred to the plurality of chamfering rollers during rotation from the shaft towards the center position along the shaft.
  • the fluid passage includes two sub-fluid passages, which are respectively spirally formed on the surface of the shaft from both ends of the shaft in two opposite directions and meet at a center position of the longitudinal axis of the shaft, the fluid passage being adapted to transfer the fluid, which can be applied to the shaft at the center position, to the plurality of chamfering rollers during a rotation from the shaft in the direction of the two ends of the shaft along the shaft.
  • the two partial fluid channels are introduced into the shaft analogous to the previous embodiment.
  • the fluid is only at the center position, i. at the position where the two partial fluid channels meet, applied to the shaft.
  • the fluid is transferred to the individual chamfering rolls in a particularly uniform manner and with only a short lead time. Another advantage is that only a single fluid reservoir is to be provided.
  • Such a processing device is characterized in that adhesion of clay residues to the chamfering rolls is prevented with extremely little effort. Thus, the chamfering rollers always keep a smooth surface.
  • the processing device includes the fluid and a fluid reservoir for storing the fluid.
  • the fluid reservoir may be mounted at a position above the shaft, with the opening directed downwards.
  • the fluid is transferred by gravity via a feed line to the shaft. The design effort for this is low.
  • the fluid reservoir is configured to transfer the fluid to the shaft at an adjustable volume rate in relation to time or rate of production.
  • the volume rate can be adjusted via a valve interposed between the fluid reservoir and the supply line.
  • the respective volume rate is dependent on a multiplicity of influencing factors, among which i.a. counting the rotational speed, the diameter and the length of the shaft.
  • a volume rate should be selected which is sufficient for all chamfering rollers to be wetted uniformly with the fluid. At the same time, no or only a very small portion of the fluid should drain off unused from the end of the shaft.
  • the fluid is adapted to inhibit adhesion of clay residues to the surface of the chamfering rollers.
  • the fluid it should be taken into account that no ingredients are included which cause staining in the oven when the chamfered and cut clay elements are fired.
  • the fluid has such a wettability, which is sufficient that the fluid is transferred during the rotation of the shaft within the fluid channel.
  • the Fluid should have such a wettability or texture that it does not drip at the lowest point of the shaft or only very delayed.
  • the rotation of the shaft then causes the fluid accumulated at the lowest point of the shaft to be absorbed by capillary forces into the fluid channel and then to be forced into a continuous flow motion, caused by the rotation of the shaft.
  • the fluid is a petroleum derivative, for example, diesel oil.
  • Diesel oil has an excellent characteristic of being evenly distributed on surfaces.
  • the diesel oil in the fluid channel is always transferred uniformly along the rotating shaft.
  • this property of diesel oil has the advantage that it distributes uniformly on the surface of the chamfering rollers and forms a thin film there.
  • the diesel oil has excellent cleaning properties. As a result, possible loam residues on the surfaces of the chamfering rollers are reliably removed.
  • Another advantage is that with a chamfering roll, the surface of which is coated with a uniform film of diesel oil, no clay residue can adhere at all.
  • diesel oil as a cleaning fluid, there is also found a liquid which is not dangerous for the health of the processing device and is not a fire hazard.
  • diesel oil due to the excellent cleaning power, diesel oil only needs to be dosed at a very low volume rate and burns without residue in the oven.
  • diesel oil is always available and very inexpensive.
  • diesel oil a diesel oil mixture can be used.
  • Alternative liquids are also conceivable which have the aforementioned advantages of diesel oil.
  • the above object is also achieved by using a processing apparatus according to any one of claims 13 to 17 for profiling at least one surface of a clay strand.
  • FIG. 1 shows a schematic view of a processing apparatus 10 with a rotatably inserted Chamfering device 12.
  • the chamfering device 12 includes a shaft 14, on which a plurality of chamfering rollers 16'-16 "" are concentrically placed.
  • the shaft 14 includes a fluid channel 18, which is spirally formed on the surface of the shaft 14 in this.
  • the fluid channel 18 is formed continuously from one end region to the other end region of the shaft 14, so that the fluid channel 18 also extends along those regions of the shaft on which the chamfering rollers 16'-16 "" are mounted.
  • the processing apparatus 10 further includes a fluid reservoir 20 in which diesel oil 22 is accommodated.
  • the fluid reservoir 20 is mounted at an upper portion between a first end of the shaft 14 and the first chamfering roller 16 'with the opening of the fluid reservoir 20 directed downwardly.
  • an input of a valve 24 is attached to the output of a supply line 26 is connected.
  • the output of the lead 26 is directed downwardly onto the surface of the shaft 14. This arrangement allows the diesel oil 22 to be transferred to the shaft 14 at an adjustable volume rate relative to time or rate of production during operation of the processing apparatus 10.
  • a loam strand For profiling a loam strand (not shown), this is guided through the processing device 10 perpendicular to its longitudinal direction.
  • the clay strand rests on a support 28 of the processing apparatus 10 and the rotated chamfer 12 is located above the top of the Lehmstrangs.
  • the respective peripheral regions of the rotating chamfering rollers 16'-16 "" penetrate into the loam material of the loam strand, leaving individual profiled grooves in each case. This step is carried out until the profile grooves are pulled vertically over the entire surface of the clay strand.
  • the chamfering device 12 in the processing device 10 serves only for illustrative purposes.
  • the chamfering device 12 of the processing device 10 can be arranged below the clay strand resting on the support 28.
  • the support 28 each aligned perpendicular to the extension direction of the clay strand aligned through slots, which are arranged at those positions at which the profile grooves are provided.
  • the chamfering rollers 16'-16 "" penetrate the bottom of the clay strand and, passing through these slots, pull the respective profile grooves into the clay material.
  • the sliding on the support 28 clay strand can be profiled on its upper side and on its underside at the same time.
  • the profile grooves (which are referred to as the chamfers after separation into clay elements) are each drawn on the edges of that side of a clay element to be created, which are the visible side in the final product to be finished (eg visible tiles, paving tiles, etc.) becomes.
  • the profile grooves can also be drawn on more than two edges of the clay element to be created.
  • the diesel oil 22 finds its way into the fluid channel 18 of the shaft 14. In the entire operation, the diesel oil 22 flows on the surface of the shaft 14. In the example shown in the figure, the fluid channel 18 is introduced into the shaft 14 equal to a "right-hand thread". Furthermore, the shaft 14 rotates clockwise (viewing direction A). By this arrangement, the accumulated in the fluid passage 18 diesel oil 22, similar to the principle of a screw conveyor, transferred along the shaft 14 from left to right. In the area of the first chamfering roll 16 ', a proportion of the diesel oil stream is branched off to the first chamfering roll 16'. The remaining portion of the diesel oil stream continues to be transferred along the shaft 14 until a portion is diverted to the second chamfering roll 16 ", etc. Following this principle, all the chamfering rolls 16" -16 “" are uniformly supplied with diesel oil 22.
  • each of the Anfasrollen 16'-16 “” branched off portions of the diesel oil stream evenly distributed as a thin film on the respective surface of the individual Anfasrollen 16'-16 "".
  • the diesel oil film prevents clay residue from adhering to the peripheral areas. This advantageous effect precludes the formation of encrustations on all surface areas of the chamfering rollers 16'-16 "", so that they are always kept in a smooth surface. This will be in the Clay material of the clay strand drawn Profilnuten be free of notches or bumps. In other words, the profile grooves and thus also the chamfers resulting from further working steps will always have a smooth course. This reduces the reject rate of the finished end products to almost zero.
  • FIG. 2 shows a partial sectional view of a chamfer 16 of eg stainless steel.
  • the chamfering roller 16 includes a peripheral portion 30 and a shoulder 32, which are integrally connected to each other. Only the peripheral region 30 enters the clay material during profiling of the clay strand (not shown).
  • the Anfasrolle 16 shown in the figure is designed to form a chamfer angle of 45 °. The further deep into the clay material penetrating portions of the peripheral region of the chamfering roller 16 leave a Tren Vietnamesesnut in the clay material, along which the clay strand is separated in a subsequent processing step into individual clay elements.
  • the shoulder piece 32 is used for non-rotatably connecting the Anfasrolle 16 with the shaft (not shown).
  • a radial threaded bore 34 is introduced, in which, for example, a set screw (not shown) is screwed in until its distal end meets the surface of the shaft.
  • a set screw (not shown) is screwed in until its distal end meets the surface of the shaft.
  • the chamfering roller 16 is non-rotatably connected to the shaft via frictional connection.
  • another shoulder piece may be provided on the opposite side of the peripheral portion 30 (not shown).
  • FIG. 3 shows a partial sectional view of another Anfasrolle 16.
  • This Anfasrolle 16 differs from the in FIG. 2 shown Anfasrolle in that the shoulder piece 32 is tapered tapering to its distal end.
  • the cone is tapered at an angle of 9.5 ° in the direction of the axis. This angle allows excellent transfer of the diesel oil (not shown) from the shaft to the shoulder 32 and from here to the entire surface of the chamfering roller 16.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
EP10405250A 2010-12-28 2010-12-28 Dispositif à chanfreiner d'un dispositif de traitement, dispositif de traitement et utilisation d'un dispositif de traitement Withdrawn EP2471639A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10405250A EP2471639A1 (fr) 2010-12-28 2010-12-28 Dispositif à chanfreiner d'un dispositif de traitement, dispositif de traitement et utilisation d'un dispositif de traitement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10405250A EP2471639A1 (fr) 2010-12-28 2010-12-28 Dispositif à chanfreiner d'un dispositif de traitement, dispositif de traitement et utilisation d'un dispositif de traitement

Publications (1)

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EP2471639A1 true EP2471639A1 (fr) 2012-07-04

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Application Number Title Priority Date Filing Date
EP10405250A Withdrawn EP2471639A1 (fr) 2010-12-28 2010-12-28 Dispositif à chanfreiner d'un dispositif de traitement, dispositif de traitement et utilisation d'un dispositif de traitement

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EP (1) EP2471639A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB522638A (en) * 1938-12-16 1940-06-24 Frederic Phelp Jones Improvements in or relating to the manufacture of wire-cut bricks, tiles and the like
GB1215344A (en) * 1968-05-07 1970-12-09 Blockleys Ltd Improvements in building bricks
GB1395303A (en) * 1971-08-06 1975-05-21 Paton W D Concrete finishing method and machine
GB2427843A (en) * 2005-10-24 2007-01-10 C4 Carbides Ltd Drill bit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB522638A (en) * 1938-12-16 1940-06-24 Frederic Phelp Jones Improvements in or relating to the manufacture of wire-cut bricks, tiles and the like
GB1215344A (en) * 1968-05-07 1970-12-09 Blockleys Ltd Improvements in building bricks
GB1395303A (en) * 1971-08-06 1975-05-21 Paton W D Concrete finishing method and machine
GB2427843A (en) * 2005-10-24 2007-01-10 C4 Carbides Ltd Drill bit

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