EP2544858A1 - Machine for grinding plate-shaped elements, particularly tiles and slab of ceramic material, natural stones, glass or the like - Google Patents
Machine for grinding plate-shaped elements, particularly tiles and slab of ceramic material, natural stones, glass or the likeInfo
- Publication number
- EP2544858A1 EP2544858A1 EP11713042A EP11713042A EP2544858A1 EP 2544858 A1 EP2544858 A1 EP 2544858A1 EP 11713042 A EP11713042 A EP 11713042A EP 11713042 A EP11713042 A EP 11713042A EP 2544858 A1 EP2544858 A1 EP 2544858A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- machine
- forward movement
- fact
- movement
- plate
- 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.)
- Granted
Links
- 239000011521 glass Substances 0.000 title claims abstract description 11
- 229910010293 ceramic material Inorganic materials 0.000 title claims abstract description 10
- 239000004575 stone Substances 0.000 title claims abstract description 10
- 238000003754 machining Methods 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 17
- 239000000919 ceramic Substances 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004579 marble Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 206010065929 Cardiovascular insufficiency Diseases 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011328 necessary treatment Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- 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
- B24B7/22—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 inorganic material, e.g. stone, ceramics, porcelain
- B24B7/224—Portal grinding machines; Machines having a tool movable in a plane
-
- 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
- B24B7/22—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 inorganic material, e.g. stone, ceramics, porcelain
- B24B7/24—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 inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass
- B24B7/26—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 inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass for simultaneously grinding or polishing opposite faces of continuously travelling sheets or bands
- B24B7/265—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 inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass for simultaneously grinding or polishing opposite faces of continuously travelling sheets or bands of vertical surfaces
-
- 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
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
-
- 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
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
- B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
-
- 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
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
- B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
- B24B9/10—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of plate glass
- B24B9/102—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of plate glass for travelling sheets
Definitions
- the present invention relates to a machine for grinding plate-shaped elements, particularly tiles and slabs of ceramic material, natural stones, glass or the like.
- plate-shaped elements like tiles and ceramic bricks, for both floors and walls, or such as marble slabs and/or glass sheets, require a grinding operation in order to bring the sides of the products to perfect project shape or surface state.
- this operation is performed using grinding machines able to quickly machine large quantities of ceramic products that move forward in succession on a horizontal movement surface.
- Traditional grinding machines in fact usually comprise a plate-shaped element moving system consisting of four conveyor belts, superimposed two by two and side by side, wherein the plate-shaped products are wedged between the lower conveyor belts and the upper conveyor belts and driven along by these.
- the sides of the products to be machined protrude from the sides of the conveyor belts and, during forward movement, encounter a succession of grinding wheels, which remove the excess material and make the profile flush, and if necessary one or more sloped grinding wheels to carry out the chamfering operation.
- the distance between the grinding wheels and the conveyor belts is adjustable to set the quantity of material to be removed from the products; for this purpose, a manual adjustment device is provided, of the type of a screw or the like, which can be operated by an operator.
- a centring device is provided that allows centring the plate-shaped elements with respect to the movement surface.
- the centring device consists of two opposite side boards moved by means of a pair of pneumatic cylinders.
- the plate-shaped elements encounter a square positioning system which allows positioning them at right angles with respect to the direction of forward movement on the movement surface.
- the square positioning system provided by traditional machines consists of a carriage which, by means of an electro-mechanical system, is alternately mobile along the direction of forward movement and which is suitable for contacting the rear side of the plate-shaped elements.
- the carriage supports two pushers fitted on specific fine-adjustment systems, of the screw type or the like, which allow adjusting their depth along the direction of forward movement.
- the known machines do have a number of drawbacks.
- the known machines are in fact distinguished by reduced operating flexibility and are considerably complicated as regards maintenance and settings.
- the pushers are ready to be fitted at substantially fixed points of the support carriage and, depending on the size of the plate-shaped elements to be machined, their position may not be ideal for pushing the products.
- the machine In the case, furthermore, of having to grind large-size plate-shaped elements, the machine must, inconveniently, be equipped with a very long and cumbersome drive shaft.
- the chamfering wheels in fact are usually fitted on a carriage prismatically sliding towards the conveyor belts, or else on a carousel hinged around a horizontal axis, the rotation of which allows moving the grinding wheel closer/further away and at the same time changing the inclination of the grinding wheel; in both cases, however, the correct positioning of the grinding wheels is particularly difficult and depends a lot on the operator's sensitivity.
- the presser means fitted in the traditional machines consist, for example, of a longitudinal bar under which the upper conveyor belt is made to slide.
- the bar is often strongly pressed on the upper conveyor belt, causing this to wear quickly and in any case without managing to ensure a uniform distribution of the load along the entire length of the conveyor belts.
- presser means composed of a succession of rollers which press on the upper conveyor belt; this solution, while on the one hand producing less wear on the conveyor belt, on the other hand results in the fact that the rollers, partially distanced the one from the other, allow applying a discontinuous pressure which, sometimes, determines the undesired movement of the plate-shaped elements with respect to their square position.
- a further drawback of traditional machine consists in the fact that the device for centring the plate-shaped elements on the movement surface, which is entrusted to the operation of one/two pneumatic cylinders, is not always precise, with the risk of not correctly placing the plate-shaped elements with respect to the movement surface.
- the main aim of the present invention is to provide a machine for grinding plate- shaped elements, particularly tiles and slabs of ceramic material, natural stones, glass or the like that has a versatility of use sensitively higher than the known machines described above.
- the present invention proposes to square up the plate-shaped elements in a much more practical, easier and more functional way, above all improving aspects tied to the adjustment of the reciprocal position of the pushers without stopping production.
- a further object of the present invention is to provide a machine that can easily adapt to machining plate-shaped elements of different dimensions and which can be regulated in a practical and simple way, without long machine down times being required nor any special skills on the part of the operators.
- Another object of the present invention is to provide a machine that has greater efficiency than machines of known type.
- Not last object of the present invention is to provide a machine with reduced wear and limited overall dimensions/impediments, so that it is more easily accessible by the operator to carry out maintenance jobs, makes his/her work easier and cuts the time required.
- Another object still of the present invention is to allow the use of grinding wheels with different wear without this negatively affecting the quality of the job done.
- Yet another object of the present invention is to allow the carrying out of more precise jobs, especially for large sizes, compared to machines of known type.
- the machine according to the invention proposes to allow the control and adjustment of the position of the grinding wheels with respect to the movement surface and therefore with respect to the plate-shaped elements being machined.
- Yet another object of the present invention is to provide a machine able to ensure the correct forward movement of the plate-shaped elements along the movement surface, without the risk of causing a rapid deterioration of the conveyor belts or losing the grip of the plate-shaped elements.
- the machine according to the invention also proposes to centre the plate-shaped elements on the movement surface in a practical, easy and functional way and, above all, with much more precision compared to traditional machines.
- Another object of the present invention is to provide a machine for grinding plate- shaped elements, particularly tiles and slabs of ceramic material, natural stones, glass or the like that allows overcoming the mentioned drawbacks of the background art within the ambit of a simple, rational, easy to use and low cost solution.
- the present objects are achieved by the present machine for grinding plate-shaped elements, particularly tiles and slabs of ceramic material, natural stones, glass or the like, comprising:
- forward movement means for at least a plate-shaped element having at least a first side to be ground and at least a second side transversal to said first side, said forward movement means being fitted on said base frame and being suitable for moving said plate-shaped element on at least a movement surface along at least a direction of forward movement;
- machining means for machining said first side which are arranged in proximity of said movement surface and are suitable for intercepting said plate-shaped element in its movement along said direction of forward movement, said machining means comprising at least one between a side grinding wheel and a chamfering wheel;
- square positioning means of said plate-shaped element on said movement surface which comprise at least a first pusher and at least a second pusher moving alternately along said direction of forward movement and suitable for pushing said second side to place it in a squared-up position substantially at right angles to said direction of forward movement;
- said square positioning means comprise a first linear actuator suitable for operating said first pusher and a second linear actuator suitable for operating said second pusher, said linear actuators being separated and independent the one from the other and electronically connected to a processing and control unit suitable for controlling the relative movement.
- figure 1 is an axonometric view of the machine according to the invention.
- figure 2 is a rear view of the machine according to the invention.
- figure 3 is an axonometric view that shows in detail a portion of the forward movement means provided on the machine according to the invention
- figure 4 is an axonometric view that shows in detail the presser device of the machine according to the invention.
- figure 5 is an axonometric view of a part of the machine according to the invention
- figure 6 is a plan, schematic and partial view of the part of the machine of figure 5
- figure 7 is an axonometric view of another part of the machine according to the invention
- figure 8 is a side, schematic and partial view of the part of the machine of figure 7;
- figure 9 is an axonometric view of a further part of the machine according to the invention.
- figure 10 is an axonometric view of yet another part of the machine according to the invention.
- FIGS. 11 and 12 show, in a succession of plan, schematic and partial views, the operation of the square positioning means of the machine according to the invention.
- 1 is globally indicated a machine for grinding plate-shaped elements, particularly tiles and slabs of ceramic material, natural stones, glass or the like.
- the machine 1 comprises a base frame 2 for resting on the ground that supports forward movement means 3 for moving at least a plate-shaped element 4, of the type of a ceramic brick and/or a marble slab or other natural stone and/or a glass plate.
- the plate-shaped element 4 is substantially rectangular or square and has two first opposite and parallel sides 5 to be ground, a second side 6 and a third side 7 transversal to the first sides 5.
- the forward movement means 3 are suitable for moving the plate-shaped element 4 so this lies on a movement surface 8 and moves along a forward direction A, with the second side 6 arranged upstream and the third side 7 downstream with respect to the direction of forward movement A.
- the forward movement means 3 comprise at least a pair of flexible elements 9a, 9b, 10a, 10b, of the type of belts, bands or the like, closed on themselves in a loop, each of which is at least partially wrapped around two drive wheels 11 and can be placed in contact on faces opposite the plate-shaped element 4 to drive this along the direction of forward movement A.
- the forward movement means 3 comprise two of the above pairs of flexible elements 9a, 9b, 10a, 10b, of which a first pair 9a, 9b is fitted on a first support structure 12 and a second pair 10a, 10b is fitted on a second support structure 13 and is arranged substantially alongside and parallel to the first pair 9a, 9b.
- the flexible elements 9a, 9b of the first pair are arranged one above the other and extend parallel to the direction of forward movement A; similarly, the flexible elements 10a, 10b of the second pair are arranged one above the other and are facing the first pair 9a, 9b in a substantially symmetrical way with respect to a vertical plane parallel to the direction of forward movement A.
- the plate-shaped element 4 is meant to rest on the lower flexible elements 9a, 10a wedging underneath the upper flexible elements 9b, 10b.
- the lower flexible elements 9a, 10a are longer and have a free entry section on which to rest the plate-shaped element 4 before wedging underneath the upper flexible elements 9b, 10b.
- the movement surface 8 consists in the surface defined between the lower flexible elements 9a, 10a and the upper flexible elements 9b, 10b (figure 2).
- the movement surface 8 is substantially horizontal, as is the direction of forward movement A, but alternative embodiments cannot be ruled out wherein the movement surface 8 is inclined.
- the flexible elements 9a, 9b of the first pair are associated with at least a first operating motor 14 while the flexible elements 10a, 10b of the second pair are associated with at least a second operating motor 15.
- first operating motors 14 there are two first operating motors 14, one for each flexible element 9a, 9b of the first pair, while there are two second operating motors 15, one for each flexible element 10a, 10b of the second pair.
- the first operating motors 14 and the second operating motors 15 are of the electric type and are electronically connected to a processing and control unit 16 suitable for controlling the relevant movement and, in particular, the synchronism to ensure constant and regular forward movement.
- the support structures 12, 13 extend longitudinally and parallel to the direction of forward movement A and are associated with the base frame 2 in a reciprocally moving way, approaching and moving away along a transversal direction B which is horizontal and substantially at right angles to the direction of forward movement A.
- This allows bringing the flexible elements 9a, 9b, 10a, 10b closer together and, therefore, reducing or enlarging the movement surface 8 according to the size of the plate-shaped element 4.
- the forward movement means 3 furthermore, comprise a presser device 17, 18, 19 suitable for pushing the flexible elements 9a, 9b, 10a, 10b of each pair the one against the other.
- the guide runners 18 are designed to be pressed against the upper flexible elements 9b, 10b to push them against the respective lower flexible elements 9a, 10a.
- machining means 20, 21 are arranged of the first sides 5 of the plate-shaped element 4, which are suitable for intercepting the plate-shaped element 4 in its movement along the direction of forward movement A.
- the machining means 20, 21 e.g., comprise a plurality of side grinding wheels 20 arranged on both sides of the movement surface 8.
- the side grinding wheels 20 are split up into a first series fitted on the first support structure 12 and into a second series fitted on the second support structure 13.
- the side grinding wheels 20 are driven in rotation around an axis substantially horizontal and at right angles to the direction of forward movement A by means of a corresponding control motor 22.
- control motors 22 and the side grinding wheels 20 are also mobile in approaching and moving away with respect to the movement surface 8 and are provided with automated adjustment means 23 suitable for adjusting the position of the side grinding wheels 20 with respect to the surface itself.
- the automated adjustment means 23 are of the optical/visual type and comprise emission/receiving means 24, 25 for emitting/receiving a rectilinear light ray 26, arranged at a preset distance from the movement surface 8 and suitable for being interrupted by the side grinding wheels 20 by effect of the approaching/moving away of the side grinding wheels 20 with respect to the movement surface 8.
- the laser ray 26 emitted by the laser emitters 24 is substantially directed parallel to the direction of forward movement A.
- the automated adjustment means 23 comprise other types of optical devices such as cameras or the like for detecting the position of the side grinding wheels 20.
- To register the position of the side grinding wheels 20 means are also provided for detecting the position of the side grinding wheels 20 in correspondence to which the side grinding wheels 20 interrupt the laser ray 26.
- control motors 22 and the side grinding wheels 20 are associated with an equal number of operating devices 27 to move the side grinding wheels 20 in approaching and moving away with respect to the movement surface 8, the operating devices 27 being electronically connected to the processing and control unit 16 for controlling the position of the side grinding wheels 20 according to the measurement detected by the detection means.
- the operating devices 27 consist in an equal number of electric motors able to automatically detect their position to inform in agreement the processing and control unit 16.
- the machining means 20, 21, furthermore, comprise two chamfering wheels 21 arranged on opposite sides of the movement surface 8, one of which is fitted on the first support structure 12 and the other on the second support structure 13.
- the chamfering wheels 21 are driven in rotation around an axis substantially oblique with respect to the movement surface 8 and at right angles to the direction of forward movement A by means of a corresponding control motor 22.
- control motors 22 and the chamfering wheels 21 are supported by an articulated parallelogram mechanism 28 suitable for guiding each chamfering wheel 21 in an approach and away movement with respect to the movement surface 8.
- the articulated parallelogram mechanism 28 comprises a pair of connecting rods placed in between the control motor 22 of the chamfering wheels 21 and the corresponding support structure 12, 13, the control motor 22 being connected to an electric motor 29 identical to the operating devices 27.
- the machine 1 is fitted with centring means 30, 31 for centring the plate- shaped element 4 which comprise two side boards 30 arranged on opposite sides of the movement surface 8 and which can be operated in approach and away movement with respect to the movement surface 8 by means of two respective electric motors 31.
- centring means 30, 31 for centring the plate- shaped element 4 which comprise two side boards 30 arranged on opposite sides of the movement surface 8 and which can be operated in approach and away movement with respect to the movement surface 8 by means of two respective electric motors 31.
- a side board 30 is fitted on the first support structure 12 while the other side board 30 is fitted on the second support structure 13.
- bumper discs 30a suitable for contacting the first sides 5 of the plate-shaped element 4.
- the electric motors 31 associated with the side boards 30 are electrically connected to the processing and control unit 16 to control their relative and synchronous operation, so as to ensure a centring precision considerably greater than that of traditional machines.
- the machine 1 also comprises square positioning means 32, 33, 34, 35, suitable for positioning the plate-shaped element 4 on the movement surface 8 in a square position wherein the second side 6 of the plate-shaped element 4 is placed substantially at right angles to the direction of forward movement A.
- the square positioning means 32, 33, 34, 35 comprise a first pusher 32 and a second pusher 33 which are alternately mobile along the direction of forward movement A and are suitable for pushing the second side 6 of the plate-shaped element 4 and positioning it in the above square position.
- the square positioning means 32, 33, 34, 35 also comprise a first linear actuator 34 suitable for operating the first pusher 32 along the direction of forward movement A and a second linear actuator 35 suitable for operating the second pusher 33 along the direction of forward movement A.
- the linear actuators 34, 35 are separate and independent the one from the other and electronically connected to the processing and control unit 16, which is suitable for controlling the relevant movement.
- the processing and control unit 16 in point of fact, is able to command the forward movement of the pushers 32, 33 in an automated way and, above all, to control their movement synchronism, on which depends the position of the second side 6 of the plate-shaped element 4.
- the linear actuators 34, 35 in particular, consist in an electric motor 37 (figure 10), e.g., of the brushless type, which drives a driving shaft 38 in rotation.
- the driving shaft 38 is designed to drive a flexible body 39, of the type of a belt or the like, closed on itself in a loop around two wheels 40 one of which fitted on the driving shaft 38, and not shown in the illustrations, and the other idle.
- connection element 41 which supports a bracket 42 which, in turn, supports one of the pushers 32, 33.
- the flexible bodies 39 used in each linear actuator 34, 35 are arranged along the direction of forward movement A so the pushers 32, 33 can run parallel to it.
- the processing and control unit 16 acts as an "electric" drive shaft that permits maintaining the synchronism of operation of the electric motors 37 and the consequent forward movement of the pushers 32, 33.
- first linear actuator 34 is fitted on the first support structure 12 while the second linear actuator 35 is fitted on the second support structure 13 and these are mobile with them along the transversal direction B.
- the first pusher 32 is arranged in correspondence to the first pair of flexible elements 9a, 9b and the second pusher 33 is arranged in correspondence to the second pair of flexible elements 10a, 10b; more in detail, each pusher 32, 33 lies on the vertical lying plane of the respective pair of flexible elements 9a, 9b, 10a, 10b and moves alternately forward and backward along the free entry section of the lower flexible elements 9a, 10a.
- each pusher 32, 33 is able to push the plate-shaped element 4 precisely in correspondence to the lower flexible elements 9a, 10a, to make this slide on the movement surface 8 and correct the position of the second side 6 in the most controlled and precise way possible.
- the first pusher 32 and the second pusher 33 consist, e.g., in a lever which is fitted at the moving extremity of the linear actuators 34, 35, supports a roller 36 and is suitable for entering into contact with the second side 6 once the plate-shaped element 4 has fully passed underneath the pushers 32, 33.
- the operation of the present invention is the following.
- the machine 1 is set by an operator according to the size of the plate-shaped element 4 to be machined. For this purpose, it is enough to adjust the distance of the support structures 12, 13 along the transversal direction B, dragging with them the machining means 20, 21, the automated adjustment means 23, the centring means 30, 31 and the square positioning means 32, 33, 34, 35.
- the machining means 20 and 21 are first of all placed at the maximum distance from the movement surface 8 and then made to move forward one by one towards the corresponding laser ray 26.
- the plate-shaped element 4 to be machined is loaded on the free entry section of the lower flexible elements 9a, 10a where, by means of the centring means 30, 31, it is centred with respect to the movement surface 8.
- the plate-shaped element 4 is transported along the direction of forward movement A and made to pass underneath the pushers 32, 33, and after passing these is ready to be positioned squared-up.
- the processing and control unit 16 controls the operation of the linear actuators 34, 35 and controls the forward movement of the pushers 32, 33, which come into contact with the second side 6 and push the plate-shaped element 4 to slide on the lower flexible elements 9a, 10a until the square position is reached wherein the second side 6 is perfectly at right angles to the direction of forward movement A.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14183839.1A EP2853343B1 (en) | 2010-03-08 | 2011-02-21 | Machine for grinding plate-shaped elements, particularly tiles and slab of ceramic material, natural stones, glass or the like |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMO2010A000056A IT1398656B1 (en) | 2010-03-08 | 2010-03-08 | GRINDING MACHINE FOR LASTRIFORMS, PARTICULARLY TILES AND SHEETS IN CERAMIC MATERIALS, NATURAL STONES, GLASS OR SIMILAR |
PCT/IB2011/000333 WO2011110907A1 (en) | 2010-03-08 | 2011-02-21 | Machine for grinding plate-shaped elements, particularly tiles and slab of ceramic material, natural stones, glass or the like |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14183839.1A Division EP2853343B1 (en) | 2010-03-08 | 2011-02-21 | Machine for grinding plate-shaped elements, particularly tiles and slab of ceramic material, natural stones, glass or the like |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2544858A1 true EP2544858A1 (en) | 2013-01-16 |
EP2544858B1 EP2544858B1 (en) | 2014-09-24 |
Family
ID=42728936
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11713042.7A Active EP2544858B1 (en) | 2010-03-08 | 2011-02-21 | Machine for grinding plate-shaped elements, particularly tiles and slab of ceramic material, natural stones, glass or the like |
EP14183839.1A Active EP2853343B1 (en) | 2010-03-08 | 2011-02-21 | Machine for grinding plate-shaped elements, particularly tiles and slab of ceramic material, natural stones, glass or the like |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14183839.1A Active EP2853343B1 (en) | 2010-03-08 | 2011-02-21 | Machine for grinding plate-shaped elements, particularly tiles and slab of ceramic material, natural stones, glass or the like |
Country Status (3)
Country | Link |
---|---|
EP (2) | EP2544858B1 (en) |
IT (1) | IT1398656B1 (en) |
WO (1) | WO2011110907A1 (en) |
Cited By (2)
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WO2016207814A1 (en) * | 2015-06-23 | 2016-12-29 | Ancora S.P.A. | Grinding machine for plate-like elements, particularly ceramic tiles and plates, natural stones, glass or similar |
CN116765968A (en) * | 2023-08-23 | 2023-09-19 | 达州市雅森环保建材有限公司 | Glass scratch repairing and polishing device and polishing method |
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ITTO20120050A1 (en) * | 2012-01-23 | 2013-07-24 | Bottero Spa | METHOD FOR GRINDING SLABS OF GLASS |
CN102837238A (en) * | 2012-09-19 | 2012-12-26 | 湖南三星磊洋玻璃机械有限公司 | Glass bilateral chamfering device |
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IT201700112496A1 (en) * | 2017-10-06 | 2019-04-06 | Italvision S R L | SQUARING MACHINE |
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EP3581331B1 (en) | 2018-06-13 | 2022-07-20 | W-M GLASS Sp. z o.o. | Set of discs for grinding the edges of glass plates |
IT201900002587A1 (en) * | 2019-02-22 | 2020-08-22 | Soltek S R L | Device for calibrating the position of sheet-like elements and relative machine for grinding sheet-like elements |
CN109759955B (en) * | 2019-03-11 | 2020-08-28 | 佛山市南海区卓迪机械有限公司 | Stone plate polishing equipment |
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IT201900021648A1 (en) * | 2019-11-19 | 2021-05-19 | Soltek S R L | Device for detecting the orientation of an edge of a sheet-like element and machine comprising said detection device |
CN110814919A (en) * | 2019-11-27 | 2020-02-21 | 利辛县天鑫玻璃制品有限公司 | Straight edge grinding machine for glass |
CN110977670A (en) * | 2019-12-10 | 2020-04-10 | 江苏奥蓝工程玻璃有限公司 | Double-side grinding machine set for processing double-silver temperable Low-e glass |
CN111805325B (en) * | 2020-07-22 | 2021-12-10 | 江西创驰橡胶有限公司 | Surface fine treatment system after rubber waterstop forming |
CN112059802B (en) * | 2020-11-16 | 2021-02-05 | 广东金玻智能装备有限公司 | Online chamfering device for plates |
CN112388455B (en) * | 2021-01-21 | 2021-06-29 | 机械科学研究总院江苏分院有限公司 | Polishing module and polishing device |
CN113732865B (en) * | 2021-08-06 | 2022-08-02 | 晟光科技股份有限公司 | LCD display screen glass outer screen production processing device |
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JPH01186024A (en) | 1988-01-20 | 1989-07-25 | Toshiba Corp | Radio communication system |
DE4110209C2 (en) * | 1991-03-28 | 1993-11-18 | Roland Man Druckmasch | Device for adjusting a CNC-controlled grinding machine |
JPH07186024A (en) * | 1993-12-27 | 1995-07-25 | Asahi Glass Co Ltd | Plate material chamfering device |
US6152809A (en) * | 1998-09-03 | 2000-11-28 | Yenawine; Peter W. | Method and apparatus for cold-end processing full-lead crystal |
ITTO20040724A1 (en) | 2004-10-19 | 2005-01-19 | Biesse Spa | MACHINE FOR WORKING THE EDGES OF GLASS SLABS, MARBLE, STONE MATERIALS OR CERAMICS IN GENERAL |
-
2010
- 2010-03-08 IT ITMO2010A000056A patent/IT1398656B1/en active
-
2011
- 2011-02-21 EP EP11713042.7A patent/EP2544858B1/en active Active
- 2011-02-21 EP EP14183839.1A patent/EP2853343B1/en active Active
- 2011-02-21 WO PCT/IB2011/000333 patent/WO2011110907A1/en active Application Filing
Non-Patent Citations (1)
Title |
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See references of WO2011110907A1 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2016207814A1 (en) * | 2015-06-23 | 2016-12-29 | Ancora S.P.A. | Grinding machine for plate-like elements, particularly ceramic tiles and plates, natural stones, glass or similar |
US20180193969A1 (en) * | 2015-06-23 | 2018-07-12 | Ancora S.P.A. | Grinding machine for plate-like elements, particularly ceramic tiles and plates, natural stones, glass or similar |
US10654143B2 (en) | 2015-06-23 | 2020-05-19 | Ancora S.P.A. | Grinding machine for plate-like elements, particularly ceramic tiles and plates, natural stones, glass or similar |
CN116765968A (en) * | 2023-08-23 | 2023-09-19 | 达州市雅森环保建材有限公司 | Glass scratch repairing and polishing device and polishing method |
CN116765968B (en) * | 2023-08-23 | 2023-10-20 | 达州市雅森环保建材有限公司 | Glass scratch repairing and polishing device and polishing method |
Also Published As
Publication number | Publication date |
---|---|
WO2011110907A1 (en) | 2011-09-15 |
EP2544858B1 (en) | 2014-09-24 |
EP2853343A2 (en) | 2015-04-01 |
IT1398656B1 (en) | 2013-03-08 |
EP2853343A3 (en) | 2015-04-22 |
ITMO20100056A1 (en) | 2011-09-09 |
EP2853343B1 (en) | 2016-08-17 |
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