GB2027383A - Cutting of Discrete Portions from a Longitudinally Extending Mass such as Cutting Green Bricks from Extruded Portions of Clay - Google Patents

Cutting of Discrete Portions from a Longitudinally Extending Mass such as Cutting Green Bricks from Extruded Portions of Clay Download PDF

Info

Publication number
GB2027383A
GB2027383A GB7833087A GB7833087A GB2027383A GB 2027383 A GB2027383 A GB 2027383A GB 7833087 A GB7833087 A GB 7833087A GB 7833087 A GB7833087 A GB 7833087A GB 2027383 A GB2027383 A GB 2027383A
Authority
GB
United Kingdom
Prior art keywords
cutting
gap
conveyor
end rollers
wires
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
Application number
GB7833087A
Other versions
GB2027383B (en
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.)
Hans Lingl Anlagenbau und Verfahrenstechnik GmbH and Co KG
Original Assignee
Hans Lingl Anlagenbau und Verfahrenstechnik GmbH and Co KG
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 Hans Lingl Anlagenbau und Verfahrenstechnik GmbH and Co KG filed Critical Hans Lingl Anlagenbau und Verfahrenstechnik GmbH and Co KG
Priority to GB7833087A priority Critical patent/GB2027383B/en
Publication of GB2027383A publication Critical patent/GB2027383A/en
Application granted granted Critical
Publication of GB2027383B publication Critical patent/GB2027383B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/56—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter
    • B26D1/60—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is mounted on a movable carriage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/547—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a wire-like cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B26D7/0625—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form by endless conveyors, e.g. belts
    • 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
    • B28B11/14—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting

Abstract

A method of and apparatus for cutting discrete portions from a longitudinally extending mass (1), such as cutting green bricks from extruded portions of clay, in which a gap is present between end rollers (6) (14) of two conveyor means (5) (13) supporting extruded portions and through which vertically moved cutting wires (11) pass during cutting, the gap moving so as to follow the point of intersection of the cutting wires with the plane of conveyance, against the direction of conveyance of the extruded portions, which are simultaneously transferred from the first conveyor means (5) to the second (13). <IMAGE>

Description

SPECIFICATION "Cutting of Discrete Portions from a Longitudinally Extending Mass such as Cutting Green Bricks from Extruded Portions of Clay" The invention relates to a method of and apparatus for cutting discrete portions from a longitudinally extending mass, such as cutting green bricks from extruded portions of clay.
In one previously suggested method of cutting green bricks from extruded portions of clay, the portions of clay are so displaced transversely of the direction of their movement by a cutting frame, which has wires and means such as pushing elements for displacing such portions that the portions are parted off (cut) into discrete green bricks. An apparatus of this kind is mainly for the industrial production of frost-proof walls in cases where the extruded portions of clay are pressed very hard so that, for example particular surface structures can be formed on the bricks.
The disadvantage of such apparatus is that in cases where the properties of the raw material or the construction of the extruded pprtions of clay, for example for the production of hollow bricks, make it impossibie to utilise hard pressing, it is impossible to use an apparatus which both parts off the extruded portions of clay and moves them, since the moving or pushing elements distort the extruded portions of clay or leave considerable markings on the brick faces.
Also, extruded portions of clay can be cut by means of a cutting apparatus comprising a pivoting cutting frame in which spaced-apart cutting wires are disposed; such portions being conveyed on a conveyor belt table comprising narrow laterally spaced-apart conveying belts, the cutting wires penetrating into the spaces or gaps between the belts after each cut. The disadvantage of this apparatus, which can part off hard or soft portions of clay, is that separate conveyor belt tables must be available for the different lengths of brick to be cut. This feature causes great complexity and expense and requires considerable labour in changing the tables when it is desired to alter the parted off length of bricks.
Another disadvantage is that the extruded protions are not completely supported during cutting, so that the bottom brick edges distort during severance; also, a relatively elaborate apparatus is required to clean the wires after each cut since the cleaning strip must be moved along the wires when the cutting frame is in its normal position, so that more time is wasted.
In further apparatus for cutting extruded portions of clay into green bricks by means of a cutting frame having a number of cutting wires, the wires engage or extend into spaces between conveyor belts or metal supports disposed in sideby-side relationship. Such an apparatus unfortunately also suffers from the disadvantages referred to above, for example of requiring separate conveying tables for each parted-off length of brick, the tables having to be changed when the parted-off lengths of brick are to be altered.
According to the first aspect of the present invention there is provided a method of cutting discrete portions from a longitudinally extending mass. Such as green bricks from an extruded portion of clay, which method comprises using first and second conveyor means to support a longitudinally extending mass, during cutting, the first and second conveyor means being situated in end-to-end relationship with a gap therebetween, and cutting discrete portions from the mass using cutting wires, the cutting wires being vertically movable and extending at an angle to the plane of transference of the mass from the first to the second conveyor means during cutting, the cutting wires moving in substantially vertical planes during cutting and at least those parts of the first and second conveyor means defining the gap moving during cutting such that, on intersection of the wires with a plane containing the conveying surfaces of the first and second conveyor means, the cutting wires enter the gap.
Preferably, there is provided a method of cutting green bricks from extruded portions of clay, which method comprises using a vertically movable cutting frame in which spaced-apart cutting wires are disposed in a plane extending at an acute angle to the plane of conveyance, the wires parting the extruded portions of clay off into green bricks as the cutting frame descends, a gap being present between end rollers of conveyor belts of first and second conveyor means supporting the extruded portions, before and after cutting, over the whole length thereof, and through which gap the cutting wires pass during cutting, the gap moving, following the point of intersection of the cutting wires with the plane of conveyance, against the direction of conveyance of the extruded portions, the portions simultaneously being transferred from the first belt to the second belt.
According to the second aspect of the present invention there is provided an apparatus suitable for cutting green bricks from an extruded portion of clay, which apparatus comprises first and second conveyor means suitable for supporting an extruded portion of clay during cutting, the conveyor means being situated in end-to-end relationship with a gap therebetween, and cutting wires, the cutting wires being movable in a substantially vertical plane and extending at an angle to the plane of transference of the extruded portion from the first conveyor means to the second conveyor means, at least those parts of the first and second conveyor means defining the gap being capable of movement such that the cutting wires, on intersection of the wires with a plane containing the conveying surfaces of the first and second conveyor means, enter the gap.
Preferably, there is provided an apparatus suitable for cutting green bricks from an extruded portion of clay, which apparatus comprises first and second conveyor means for conveying an extruded portion of clay from the first conveyor means to the second conveyor means, the conveyor means being situated in end-to-end relationship with a gap therebetween and cutting wires disposed in a vertically movable cutting frame and extending at an angle to the plane of transference from the first conveyor means to the second conveyor means, the first and second conveyor means being capable of movement such that the cutting wires enter the gap, an intersection of the cutting wires with a plane containing the conveyor surfaces of the first and second conveyor means.
The invention also provides an apparatus suitable for cutting green bricks from extruded portions of clay, which apparatus comprises first and second belt conveyor means, belts of the conveyor means being arranged such that a gap is present between undriven end rollers of the first and second conveyor belts, the length of the supporting surface of each belt being such that each belt can support the extruded portion over the whole length thereof, and a vertically movable cutting frame in which spaced-apart cutting wires are disposed in a plane extending at an acute angle to the plane of transference of the extruded portion from the first conveyor means to the second conveyor means during cutting, the wires parting off the green bricks, in use of the apparatus, as the cutting frame descends, the gap-bounding end rollers of the first and second conveyor means being horizontally movable to follow the point of intersection of the cutting wires with the plane of conveyance during cutting after engagement of the cutting wires in the gap such as to pass through the extruded portion and when the first and second conveyor belts are stationary, the extruded portion being transferred, in use, from the first to the second conveyor belt without moving relatively to end points of the apparatus.
The present invention provides a means of enabling simple and highly efficient cutting of green bricks from extruded portions of clay; the extruded portion of clay being disposed during cutting on a conveyor of uninterrupted required width, the conveyor does not have to be changed when the parted-off length varies, cleaning of the cutting wires being a simple operation.
The invention can provide considerable advantages over previous proposals herein before described, more particularly that the green bricks do not require to be parted off by pushers pushing the extruded portions of clay through the cutting frame wires and that the same do not penetrate into gaps between sideby-side arranged conveying belts, so that there is no need to change belt tables or other supports when the parted-off length changes, and that simple means are used to clean the wires during cutting.
For a better understanding of the present invention and to show how the same may be put into effect, reference will now be made, by way of example, to the accompanying drawings, in which: Figures 1 to 3 show side elevational views of a first embodiment of an apparatus in accordance with the present invention in various operating positions, Figures 4 to 6 show side elevational views of a second embodiment of an apparatus in accordance with the present invention in various operating positions, Figure 7 shows a partial side elevational view of the first embodiment of Figures 4 to 6 with a wire cleaner, and Figure 8 shows a side elevational view of a third embodiment of an apparatus in accordance with the present invention at entry of an extruded portion of clay and exit of parted-off green bricks.
Referring to Figures 1 to 6 and 8 of the drawings, an extruded portion of clay 1, which has been parted-off, that is cut, to a predetermined length from a strand of clay, is moved by a conveyor 2 to a parting-off or cutting device 3. The conveyor 2 consists of rollers mounted between conveyor belts 4, the portion 1 being received by the rollers in the position thereof shown in Figures 2, 3, 5 and 6, the rollers then descending to transfer the portion 1 to the belts 4 for transverse conveyance. After such transfer, the belts 4 start to move and convey the portion 1 to a wide conveyor belt 5 which corresponds to the length of the portion 1 and with which an end roller 6 is associated; the roller 6, following the point of intersection of cutting wires 11 with the plane of conveyance of the portion 1.The portion 1 is cut by means of cutting wires 11 mounted to a cutting frame 8 which is movable in a vertical plane along guide shafts 12 (see Figures 1 to 3). The wires 11 are spaced apart at separations suitable for cutting and extend at an acute angle to the plane of conveyance. In the first embodiment of Figures 1 to 3, the cutting wires are shown clamped between top and bottom holders 9 and 10, respectively, associated with the frame 8 whereas in the second and third embodiments of Figures 4 to 8, only the bottom holders 10 are present.
During cutting, the portion 1 is transferred to a conveyor belt of the same width as that of conveyor belt 5; namely conveyor belt 13 of the first embodiment of Figures 1 to 3 or conveyor belt 1 7 of the second and third embodiments of Figures 4 to 8. The portion 1 is then transferred from the conveyor belt 13 or 17 to a conveyor 16 which can be the same as the conveyor 2 and a mirror image thereof.
In the first and second embodiments of Figures 1 to 7, the undriven end roller 6, on following the point of intersection of the wires 11 with the plane of conveyance of the portion 1, moves in a horizontal plane so that, as the cutting frame 8 rises or descends, the moving, that is conveying, surface of the belt 5 lengthens or shortens and the belt 5 is unwound upon stoppage of the belt drive, a tensioning roller 7 providing for compensation of belt length. When the portion 1 is in the position for severance, in which position the end roller 6 is furthest away from the entry of the portion 1 to the belt 5 from the conveyor 2, and the cutting frame 8 is in its top position (see Figures 2 and 4), the cutting frame 8 descends along the guide shafts 12.The between-axes distance X-X of the belt 5 does not change until the wires 11 penetrate into the plane of conveyance. After such penetration, the end roller 6, following the point of intersection of the wires 11 with the plane of conveyance, is displaced so that the belt 5 unwinds below the portion 1 while the wires 11 simultaneoulsy part off the portion 1 and the parted-off green bricks or blanks are transferred to the conveyor belt 13 (Figures 1 to 3)or17 (Figures 4 to 6).
In the first embodiment of Figures 1 to 3, a horizontally movable end roller 14 and a tensioning roller 1 5 are associated with the belt 1 3 just as in the case of the belt 5, the end rollers 6, 14 being so mounted in a slide or carriage (not shown) as to move together. The belt 13 unwinds below the portion 1 during cutting, the end rollers 6, 14 being disposed at a distance from one another such that a gap is maintained in the width of the cutting table formed by the conveyor belts 5 and 13 in which gap both the wire holders 10 and the wires 11 can engage. The between axis distance of the end rollers 6 and 14 is normally fixed.
After transfer of the parted-off blanks or green bricks to the belt 13, the belt 13, which was not driven during severance, conveys the parted-off blanks or green bricks towards the onwards conveyor 1 6.
In an embodiment (not shown) in which the wires 11 are of a length such that the wire holders 10 do not need to pass through the plane of conveyance and the gap between the belts 5 and 13, it is possible not only to unwind the belts 5 and 13 below the portion 1 during cutting in order to achieve a substantially vertical cutting action having only a horizontal component produced by the inclined position of the wires, but also to drive the belts 5, 13 for example more slowly during cutting than at entry and exit of the portion 1 and green bricks or blanks, so that the portion 1 experiences conveyance in the direction of the conveyor 1 6 simultaneously as it is being parted off and there is an increased horizontal component in the cutting action.
In the second embodiment of Figures 4 to 7, end rollers associated with the belt 1 7 are spaced apart by a fixed between-axes distance Y-Y which is normally just enough for complete reception of the longest shape to be cut. The belt 1 7 is horizontally displaceable together with the end roller 6 of the belt 5 by a slide or carriage 18 and, therefore, the belt 1 7 and hence an end roller 1 9 thereof can follow the point of intersection of the wires 11 with the plane of conveyance. The belt 1 7 is so driven during cutting that the speed of displacement of the slide 1 8 against the direction of conveyance cancels out the speed of the belt 17, the portion 1, therefore, remaining stationary relatively to the apparatus.
The belt 1 7 is displaceably mounted on the slide 1 8 so that when the wire holders 10 enter thegap between the end roller 6 of the belt 5 and the end roller 1 9 of the belt 17, the distance between the end rollers 6 and 19 can be increased to an extent sufficient to let the wire holders 10 pass through, the distance decreasing when the wires 11 pass through. Upon completion of cutting, the drive of the belt 1 7 stops. As the cutting frame 8 rises, the belt 1 7 together with the end roller 6 of the belt 5 moves in the conveying direction so that in the normal position there is a connection to the conveyor 1 6 and the parted-off green bricks can be conveyed onwards.
In the third embodiment shown in Figure 8, the belts 4 have a lengthened between-axes distance; the belt 5, like the belt 17, having a fixed between-axes distance. The belts 4, 5, 1 7 are so disposed in a common slide or carriage that the gap between the end rollers 6 and 19 of the belts 5 and 1 7 can be displaced to follow the point of intersection of the wires 11 with the plane of conveyance, whereas the conveyor 2 remains in engagement with the belt 4 in all positions of the slide or carriage. The belt 1 7 is driven during cutting in the manner as described above in connection with the second embodiment. Also, the belt 5 is so driven during cutting that the speed of displacement of the slide against the conveying direction cancels out the speed of the belt 5 so that the portion 1 remains stationary relatively to the apparatus.
As shown in Figure 7, a wire cleaner 20 in the form of a scraper strip is so pivoted to the end roller 6 as to be adapted to be brought into contact with the wires 11 when the same enter the plane of conveyance. The wires 11 can, therefore, be cleaned without further trouble by the movement of the end roller 6 ata constant distance from the wires 11.

Claims (31)

Claims
1. A method of cutting discrete portions from a longitudinally extending mass, such as green bricks from an extruded portion of clay, which method comprises using first and second conveyor means to support a longitudinally extending mass, during cutting, the first and second conveyor means being situated in end-toend relationship with a gap therebetween, and cutting discrete portions from the mass using cutting wires, the cutting wires being vertically movable and extending at an angle to the plane of transference of the mass from the first to the second conveyor means during cutting, the cutting wires moving in substantially vertical planes during cutting and at least those parts of the first and second conveyor means defining the gap moving during cutting such that, on intersection of the wires with a plane containing the conveying surfaces of the first and second conveyor means, the cutting wires enter the gap.
2. A method of cutting green bricks from extruded portions of clay, which method comprises using a vertically movable cutting frame in which spaced-apart cutting wires are disposed in a plane extending at an acute angle to the plane of conveyance, the wires parting the extruded portions of clay off into green bricks as the cutting frame descends, a gap being present between end rollers of conveyor belts of first and second conveyor means supporting the extruded portions, before and after cutting over the whole length thereof, and through which gap the cutting wires pass during cutting, the gap moving; following the point of intersection of the cutting wires with the plane of conveyance, against the direction of conveyance of the extruded portions, the portions simultaneously being transferred from the first belt to the second belt.
3. A method according to Claim 1 or 2, wherein the cutting wires are mounted in a or the frame using bottom wire holders, and wherein the cutting wires and the associated bottom wire holders engage in the gap.
4. A method according to Claim 1, 2 or 3, wherein the mass is transferred from the first to the second conveyor means without moving relatively to entry and exit points thereof onto the conveyor means.
5. A method according to Claim 1 or to Claim 3 or 4 when not appended to Claim 2, wherein the first and second conveyor means are belt conveyors and wherein the gap is bounded by end rollers of the belt conveyors.
6. A method according to Claim 5, wherein, during cutting, the gap-bounding end rollers are moved horizontally when the conveyor belts are not conveying.
7. A method according to Claim 5 or 6, wherein the sum total length of the conveying surfaces of the first and second conveyor belts is constant and wherein the between-axes distances of the end rollers of the first and second conveyor belts are variably in inverse proportion to one another during movement of the gap-bounding end rollers, which end rollers delimit the conveying surfaces of the belts and include the gap-bounding end rollers, variations in lengths of the first and second conveyor belts being compensated for by tensioning rollers.
8. A method according to Claim 5 or 6, wherein the between-axes distance of the end rollers of the first conveyor belt, which end rollers delimit the conveying surface of the first conveyor belt and include the gap-bounding end roller of the first conveyor belt, is variable and the between-axes distance of the end rollers of the second conveyor belt, which end rollers delimit the conveying surface of the second conveyor belt and include the gap-bounding end roller of the second conveyor belt, is fixed, the gap-bounding end rollers of the first and second conveyor belts being mounted for movement together, the second conveyor belt being driven during movement thereof in a direction opposite to that of the movement and at a speed equal to that of the speed of the movement of the first conveyor belt.
9. A method according to Claim 5 or 6, wherein the between-axes distances of the end rollers of the first and second conveyor belts, which end rollers delimit the conveying surface of the conveyor belts and include the gap-bounding end rollers, is fixed, wherein the belts are mounted for movement together and wherein the conveyor belts are driven during movement in a direction opposite to that of the movement and at a speed equal to the speed of movement of the other.
10. A method according to any one of Claims 5 to 9, wherein one of the gap-bounding end rollers is displaceable relative to the other of the gapbounding end rollers for providing a gap of variable width therebetween.
11. A method according to any one of Claims 5 to 10, wherein a pivotable wire cleaner is associated with one of the gap-bounding end rollers for contacting and cleaning the cutting wires when the cutting wires enter the gap.
12. A method according to any one of Claims 5 to 11, wherein the cutting wires engage in the gap between the end rollers even in the top position of the wires and wherein the conveyor belts are driven slowly to provide an additional horizontal cutting component during cutting.
13. An apparatus suitable for cutting green bricks from an extruded portion of clay, which apparatus comprises first and second conveyor means suitable for supporting an extruded portion of clay during cutting, the conveyor means being situated in end-to-end relationship with a gap therebetween, and cutting wires, the cutting wires being movable in a substantially vertical plane and extending at an angle to the plane of transference of the extruded portion from the first conveyor means to the second conveyor means, at least those parts of the first and second conveyor means defining the gap being capable of movement such that the cutting wires, on intersection of the wires with a plane containing the conveying surfaces of the first and second conveyor means, enter the gap.
14. An apparatus suitable for cutting green bricks from an extruded portion of clay, which apparatus comprises first and second conveyor means for conveying an extruded portion of clay from the first conveyor means to the second conveyor means, the conveyor means being situated in end-to-end relationship with a gap therebetween and cutting wires disposed in a vertically movable cutting frame and extending at an angle to the plane of transference from the first conveyor means to the second conveyor means, the first and second conveyor means being capable of movement such that the cutting wires enter the gap, an intersection of the cutting wires with a plane containing the conveyor surfaces of the first and second conveyor means.
1 5. An apparatus according to Claim 14, wherein the first and second conveyor means are belt conveyors and wherein the gap is defined by end rollers of the conveyor means.
1 6. An apparatus suitable for cutting green bricks from extruded portions of clay, which apparatus comprises first and second belt conveyor means, belts of the conveyor means being arranged such that a gap is present between undriven end rollers of the first and second conveyor belts, the length of the supporting surface of each belt being such that each belt can support the extruded portion over the whole length thereof, and a vertically movable cutting frame in which spaced-apart cutting wires are disposed in a plane extending at an acute angle to the plane of transference of the extruded portion from the first conveyor means to the second conveyor means during cutting, the wires parting off the green bricks, in use of the apparatus, as the cutting frame descends, the gap-bounding end rollers of the first and second conveyor means being horizontally movable to follow the point-of intersection of the cutting wires with the plane of conveyance during cutting and after engagement of the cutting wires in the gap such as to pass through the extruded portion and when the first and second conveyor belts are stationary, the extruded portion being transferred, in use, from the first to the second conveyor belt without moving relatively to end points of the apparatus.
17. An apparatus according to Claim 1 5 or 16, wherein the total length of the conveying surfaces of the first and second conveyor belts is constant and the between-axes distances of the end rollers of the first and second conveyor belts, which end rollers delimit the conveying surfaces of the belts and include the gap-bounding end rollers, is variable in inverse proportion to one another during the movement of the oppositely disposed gap-bounding end rollers and wherein tensioning rollers are provided for compensating for variations in the lengths of the conveyor belts.
18. An apparatus according to Claim 1 5 or 16, wherein the between-axes distance of the end rollers of the first conveyor belt, which end rollers delimit the conveying surface of the first conveyor belt and include the gap-bounding end roller of the first conveyor belt, is of variable length and the between-axes distance of the end rollers of the second conveyor belt, which end rollers delimit the conveying surface and include the gap-bounding end roller of the second conveyor belt, is fixed, the gap-bounding rollers of the first and second conveyor means being disposed in a common slide so as to be displaceable together to follow the point of intersection of the cutting wires with the plane of conveyance, the second conveyor belt being so drivable during the displacement thereof that the driving speed in a direction opposite to the displacement is equal to the speed of displacement of the second conveyor belt.
19. An apparatus according to Claim 1 5 or 16, wherein the between-axes distances of the end rollers of the first and second conveyor belts is fixed, which end rollers delimit the conveying surfaces of the conveyor belts and include the gap-bounding end rollers, the first and second conveyor means being disposed on a common slide so as to be displaceable together to follow the point of intersection of the cutting wires with the plane of conveyance, the conveyor belts being so drivable that, during displacement, the driving speed in the dpposite direction is equal to the speed of displacement of the conveyor belts.
20. An apparatus according to any one of Claims 1 5 to 1 9, wherein one of the gapbounding end rollers of the conveyor means is displaceable relative to the other of the gapbounding end rollers for providing a gap of variable width for engagement of bottom wire holders and of the cutting wires.
21. An apparatus according to any one of Claims 1 5 to 20, wherein a pivotable wire cleaner is associated with one of the end rollers such that, upon the cutting wires entering in use, the gap between the conveyor belts, the wire cleaner enters into contact with the cutting wires to clean the same during displacement of the end roller.
22. An apparatus according to any one of Claims 1 5 to 21, wherein the cutting wires can engage, in use, in the gap between the gapbounding end rollers even in the top position of the cutting wires, and the conveyor belts can be driven slowly to provide an additional horizontal cutting component during cutting.
23. A method of cutting discrete portions from a longitudinally extending mass, such as green bricks from an extruded portion of clay, substantially as hereinbefore described with reference to Figures 1 to 3 of the accompanying drawings.
24. A method of cutting discrete portions from a longitudinally extending mass, such as green bricks from an extruded portion of clay, substantially as hereinbefore discribed with reference to Figures 4 to 7 of the accompanying drawings.
25. A method of cutting discrete portions from a longitudinally extending mass, such as green bricks from an extruded portion of clay, substantially as hereinbefore described with reference to Figure 8 of the accompanying drawings.
26. An apparatus suitable for cutting green bricks from an extruded portion of clay, substantially as hereinbefore described with reference to, and as shown in, Figures 1 to 3 of the accompanying drawings.
27. An apparatus suitable for cutting green bricks from an extruded portion of clay, substantially as hereinbefore described with reference to, and as shown in, Figures 4 to 7 of the accompanying drawings.
28. An apparatus suitable for cutting green bricks from an extruded portion of clay, substantially as hereinbefore described with reference to, and as shown in, Figure 8 of the accompanying drawings.
29. Portions whenever cut using the method of any one of Claims 1 to 12 and 23 to 25 and/or the apparatus of any one of Claims 13 to 22 and 26to28.
30. Portions according to Claim 29, which are bricks.
31. Any novel feature or combination of features described herein.
GB7833087A 1978-08-11 1978-08-11 Cutting of discrete portions from a longitudinally extending mass such as cutting green bricks from extruded portions of clay Expired GB2027383B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7833087A GB2027383B (en) 1978-08-11 1978-08-11 Cutting of discrete portions from a longitudinally extending mass such as cutting green bricks from extruded portions of clay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7833087A GB2027383B (en) 1978-08-11 1978-08-11 Cutting of discrete portions from a longitudinally extending mass such as cutting green bricks from extruded portions of clay

Publications (2)

Publication Number Publication Date
GB2027383A true GB2027383A (en) 1980-02-20
GB2027383B GB2027383B (en) 1982-09-22

Family

ID=10499002

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7833087A Expired GB2027383B (en) 1978-08-11 1978-08-11 Cutting of discrete portions from a longitudinally extending mass such as cutting green bricks from extruded portions of clay

Country Status (1)

Country Link
GB (1) GB2027383B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2352675A (en) * 1999-04-17 2001-02-07 Ariana Developments Ltd Portioning apparatus
WO2012170650A1 (en) * 2011-06-07 2012-12-13 Risco Usa Corporation Machine and method for high speed cutting and portioning of extruded products
US11304423B2 (en) 2018-05-01 2022-04-19 Risco Usa Corporation Apparatus, system, and method for high speed production of food product

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2352675A (en) * 1999-04-17 2001-02-07 Ariana Developments Ltd Portioning apparatus
WO2012170650A1 (en) * 2011-06-07 2012-12-13 Risco Usa Corporation Machine and method for high speed cutting and portioning of extruded products
GB2506774A (en) * 2011-06-07 2014-04-09 Risco Usa Corp Machine and method for high speed cutting and portioning of extruded products
US9107424B2 (en) 2011-06-07 2015-08-18 Risco Usa Corporation Machine and method for high speed cutting and portioning of extruded products
US9596867B2 (en) 2011-06-07 2017-03-21 Risco Usa Corporation Machine, method, and system for high speed cutting and portioning of extruded products
GB2506774B (en) * 2011-06-07 2017-05-03 Risco Usa Corp Machine and method for high speed cutting and portioning of extruded products
US11304423B2 (en) 2018-05-01 2022-04-19 Risco Usa Corporation Apparatus, system, and method for high speed production of food product
US11606957B2 (en) 2018-05-01 2023-03-21 Risco Usa Corporation Apparatus, system, and method for high speed production of food product

Also Published As

Publication number Publication date
GB2027383B (en) 1982-09-22

Similar Documents

Publication Publication Date Title
EP0202010B1 (en) A cutting apparatus for ceramic green shaped bodies
AU655350B2 (en) Method and apparatus for continuously shaping bar-shaped bread
SU1630599A3 (en) Device for stretching raw plastic material
US4311073A (en) Method and apparatus for cutting brick mouldings from a clay strip
EP0255261A2 (en) Conveyor system and method for planar articles
GB2027383A (en) Cutting of Discrete Portions from a Longitudinally Extending Mass such as Cutting Green Bricks from Extruded Portions of Clay
JPH01174337A (en) Method and apparatus for placing continuously extruded composition on continuously moving conveyor
US4083275A (en) Method and apparatus for the spreading and transferring of rows of brick-like articles
DE9007364U1 (en)
EP0845212B1 (en) Apparatus and method for forming a continuous dough strip
EP0014781A1 (en) Apparatus for the production of foamed glass or foamed ceramics
US5725723A (en) Apparatus for making pipe insulation
US4308772A (en) Procedure and device for cutting brick blanks from clay columns
US4328724A (en) Method and apparatus for cutting brick mouldings from a clay strand
GB1561186A (en) Apparatus supitable for use in a method of transferring split tiles
GB1598940A (en) Method and apparatus for the grouping of green bricks into a setting formation
US4021173A (en) Apparatus for the continuous manufacture of foamed hollow profiles
EP0895842B1 (en) Machine for cutting slabs of various materials such as marble, ceramics, terracotta, sandstone, glass and the like into tesserae
RU2002616C1 (en) Method of receiving extruded product of plastic material and device for embodying it
JP2880733B2 (en) Work feeder
SU1037121A1 (en) Device for sampling loose materials from conveyer belt
SU596554A1 (en) Device for length cutting of glass sheet
GB2139590A (en) Apparatus for advancing pallets in a tile making machine
SU1174272A1 (en) Line for moulding ceramic articles and placing onto drying car
SU662356A1 (en) Raw brick shelfing device to automatic raw brick placing machine

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee