• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An arrangement (1) for cooling discs, which arrangement (1) comprises a cooling user (2) with arm rows (6) consisting of support arms (5) and between which the disc to be cooled can be fitted and which are adapted to rotate around a rotary shaft (3), and at least one conveyor (7) on one of the sides of the cooling user (2) for transporting the discs to the cooling user (2) and / or for removing them from the cooling user (2). The conveyor (7) has one or more elastic elements (18) which are adapted to yield and allow the conveyor (7) to move downwards when a vertical force directed towards the elastic element (18) reaches a predetermined limit value.
    公开号:FI20175959A1
    申请号:FI20175959
    申请日:2017-10-30
    公开日:2019-05-01
    发明作者:Ari Männikkö
    申请人:Dieffenbacher Panelboard Oy；
    IPC主号:
    专利说明:

    Arrangement and method for cooling plates
    The invention relates to an arrangement for cooling plates. The invention also relates to a method for cooling plates.
    Wood-based boards such as chipboard, Medium-Density Fibreboard (MDF) or Oriented Strand Board (OSB) boards are made by hot-pressing the wood fibers and binder into a single sheet using a hot press and then sawing to the desired length. The sheets are then individually or in stacks of two or more sheets fed to a cooling rotator where the sheets are cooled before stacking. If necessary, the edges of the boards can also be leveled before cooling.
    The cooling pivot comprises a rotating cooling wheel, typically having a cylindrical jacket with fastening hinges radial to the cooling wheel at one end. The bracket hinges are arranged in successive rows of arms in the direction of rotation of the cooling wheel.
    On the side of the cooling translator there is a conveyor with support brackets between the conveyor elements. The plate to be cooled or the stack of plates is placed20 on the conveyor, after which the cooling wheel of the cooling rotator is rotated, whereby the pivot arms of the fork row underneath the conveyor nos20175959 prh 30 -10-2017. The plate or stack of plates is rotated 180 degrees between two rows of adjacent rows of rows and lowered onto the conveyor on one side of the cooling rotator. The plate or stack of plates is then moved to another cooling rotator or transported for stacking.
    The cooling wheel is a large steel structure. The cooling wheel typically has a length of 6-12 meters and a weight of 20-40 tons when empty. When loaded, 30 cooling wheels can weigh up to 80 tonnes. The drive torque of the cooling inverter is up to 500 kNm.
    20175959 prh 30 -10- 2017
    In some cases, the heat sink may accidentally turn against the conveyor on its side. This can occur in a variety of malfunctions, such as a hardware program or component error or a malfunction in the user mode. A collision can also occur during system startup or after maintenance.
    Typically, as a result of the collision, the cooling wheel brackets will bend, requiring the brackets to be replaced or bent back to their original position. Larger cooling wheels can also cause more serious damage. In the worst case, the foundation of the heatwheel will be damaged, which will require the entire heatwheel to be removed and both the foundation and the heatwheel repaired. This may cause a production outage of several months.
    It is an object of the present invention to provide a solution to alleviate the problems described above.
    The objects of the invention are achieved by the arrangement of claim 1 and the method of claim 8.
    The arrangement for cooling plates according to the invention comprises a cooling rotator having rows of arms formed by brackets, between which the plate to be cooled is adjustable and arranged to rotate about an axis of rotation. In addition, the arrangement comprises at least one side conveyor arranged to move the plates to and / or remove the plates from the side. The conveyor comprises one or more resilient elements arranged to resiliently and permit downward movement of the conveyor when the vertical force exerted on the resilient element 30 reaches a predetermined limit.
    20175959 prh 30 -10- 2017
    The invention provides considerable advantages. The solution of the invention effectively prevents overload damage to the conveyor, the swivel and its foundation in disrupted hips when the cooling wheel turns against the conveyor. When the excess force or load exerted on the conveyor drops below a predetermined limit, the conveyor returns to its original height and normal production of the equipment can continue without any delay due to repair. The solution according to the invention is also relatively simple in structure, preferably feasible and easy to install in existing plate turning equipment.
    The invention will now be described in more detail by way of example with reference to the accompanying drawings, in which
    Figure 1 illustrates one end view of an arrangement according to the invention,
    Figure 2 shows the conveyor of the arrangement of Figure 1,
    Figure 3 is a side view of the conveyor of Figure 1,
    Figure 4 is a view of the conveyor of Figure 1,
    Figures 5 and 6 show a horizontal beam of the support structure of the conveyor of Figure 1,
    Figure 7 shows a section B-B of the horizontal bar of Figure 5, and
    Figure 8 shows a magnification A of Figure 6.
    Figure 1 shows an arrangement 1 for turning and / or cooling plates. Arrangement 1 is part of a manufacturing line for manufacturing wood-based boards such as chipboard, Medium-Density Fiberboard (MDF) or Oriented Strand Board (OSB). Wood-based boards are made by hot-pressing the wood fibers and binder into a single sheet with a hot press, then sawing the boards to the desired length. Tyypilli4
    20175959 prh 30 -10-2017, the boards are sawn to a length of 4 to 12 m, and shorter than the cooling rotator 2. The boards are then transported dry to the cooling rotator 2, which rotates the boards 180 degrees to cool them.
    Prior to the cooling rotator 2, the plates can be pre-stacked into multi-plate stack. The production line may comprise two or more sequentially arranged cooling rotors between which a conveyor is arranged. Cooled sheets are transported for stacking.
    The cooling rotator 2 of the arrangement 1 comprises a cooling wheel 4 rotatable about a rotation axis 3, typically having a cylindrical jacket. At the ends of the cooling wheel 4 are attached radial brackets 5 of the cooling wheel 4, for example tube beams. The bracket hinges 5 are arranged in the direction of rotation of the cooling wheel 4 in successive rows of arms 6. During use of the cooling pivot, the rows of arms 6 are rotated 15 about a common axis of rotation 3. The bracket hooks 5 are arranged in the rows of brackets 6 so that the bracket hooks of each of the rows of brackets 6 are in the same plane. The plate to be cooled (not shown) is between two successive rows of claws 6 during the rotation of the cooling rotator 2. Typically, one of the forearm rows 6 has 10 to 20 bracket bolts 5. The distance between the adjacent bracket brackets 5 in the fork row 6 is typically 400,900 mm. The distance between the adjacent brackets 5 of the rows 6 is generally constant. The bracket hinges 5 are arranged in the same division into the rack rows 6. Typically, the cooling rotator has 40 to 60 rack rows 6.
    The rows of arms 6 are arranged evenly spaced around the periphery of the cooling wheel 4.
    For the sake of clarity, only a portion of the link rows 6 of the cooling inverter 2 is shown for clarity. The cooling wheel 4 of the cooling inverter 2 is rotated by a drive mechanism, for example a reduction gear and a frequency converter-controlled short-circuit motor.
    The arrangement 1 comprises a conveyor 7, for example a roller conveyor, for introducing or removing the plates to be cooled to the cooling rotator 2.
    20175959 prh 30 -10- 2017 from the cooler turner 2. The conveyor 7 is positioned on the side of the cooler turner 2 so that the conveyor conveyor elements 8, such as rollers, are on top of the rack 6 on the side of the cooler turner. The conveying direction of the conveyor 7 is parallel to the axis of rotation 3. The structure of the conveyor 7 is such that the carrier hooks 5 can rotate through the conveyor 7, for example between successive conveyor elements 8. The apparatus 1 comprises a second conveyor (not shown) for removing the plates from the cooling rotator 2 or for feeding to the cooling rotator 2. The second conveyor is disposed on one side of the cooling rotator 2, i.e. opposite to the conveyor 7, on the refrigerator 10. The construction of the second conveyor is similar to that of the conveyor. Fig. 1 shows only the conveyor 7 on one side of the cooling translator 2.
    Figures 2-8 illustrate the structure of the conveyor 7 in more detail. The conveyor 7 15 comprises a support structure 9 for supporting the conveyor 7 vertically. The conveyor 7 is supported, for example, on the foundation of a cooling rotator 2. The support structure 9 comprises vertical beams 10 between which the support pins 5 of the cooling translator 2 can pass. The vertical beams 10 are arranged in the direction of the axis of rotation 3 of the cooling rotor 2 in a row at a distance 20 from each other. At their ends, vertical beams 10 are provided with conveyor elements 8, such as rollers, between which bracket hooks 5 can pass. The conveyor elements 8 are mounted on the ends of the vertical beams 10. The conveyor 7 comprises second vertical beams 11 for supporting the conveyor 7 vertically in the structure below, for example the foundation of the cooling rotator 2. The second vertical beams 11 are connected to a horizontal support 12, for example a beam. The conveyor elements 8 are mounted at one end to the horizontal support 12.
    The support structure 9 comprises a horizontal beam 13 to which the vertical beams 10 are fixedly attached. The other ends of the vertical beams 10 are attached to the horizontal beam 13.
    Further, the support structure 9 comprises supports 14 for supporting the conveyor 7 at the lower end
    20175959 prh 30 -10- 2017 structure, for example, the foundation of the cooling translator 2. The horizontal beam 13 is attached to the supports 14 so that it is movable vertically. The horizontal beam 13 and the vertical beams 10 can then move vertically due to the vertical force exerted on the conveyor 7. The supports 14 are disposed between the vertical beams 10. The supports 14 are disposed at regular intervals in the longitudinal direction of the conveyor 7.
    The structure of the supports 14 is illustrated in more detail in Figures 7 and 8. The support 14 comprises a body 15 which can be attached to a structure below, e.g. The support 14 also comprises a vertically movable upper support 16 fixed to the body 15 and mounted on a horizontal beam 13. Further, the support 14 comprises a lower support 17, which is movably fixed to the body 15, on which the horizontal beam 13 is disposed. The upper support 16 and the lower support 17 are against the horizontal beam 15 13 with the horizontal beam 13 between them. The upper support 16, the lower support 17 and the horizontal beam 13 therebetween are movable vertically relative to the body 15. The upper support 16 and lower support 17 are pressed against the horizontal beam 13 by clamping means such as clamping bolts 26.
    The conveyor 7 comprises one or more resilient elements 18 arranged to be vertically resilient and thereby allow downward movement of the conveyor 7, such as the conveyor support structure 9 or the vertical beams 10, when the vertical force exerted on the resilient element 18 reaches a predetermined limit. The load may exceed a predetermined limit value 25 in various malfunctions, for example when the cooling wheel 3 turns against the conveyor 7. The resilient element 18 is dimensioned so that the predetermined limit value does not exceed the 7 the force exerted by the weight of the plates to be cooled. When the vertical force acting on the spring element 18 is less than a specified limit, the spring element
    20175959 prh 30 -10- 2017 ment 18 is not flexible. The magnitude of the predetermined threshold depends on e.g. the type and construction of the conveyor 7; the type and number of plates to be cooled simultaneously on the conveyor; and the number of elastic elements 1 to 8.
    When the vertical force exerted on the spring element 18 reaches a predetermined value, the spring element 18 is resilient from the initial state, e.g., compressed or stretched vertically, allowing the conveyor 7 or part thereof to move downward from its working height. When the vertical force of the spring 10 on the support element 18 then decreases and falls below a predetermined value, the resilient distance of the spring element 18 returns to its initial state and finally to its initial state. In this case, the spring element 18 moves the conveyor 7 or a part thereof back up to its working height.
    The spring element 18 may comprise one or more springs, such as a disk spring or a compression / tension spring, and / or an elastic material such as rubber, or a gas spring. The spring element 18 may comprise a hydraulic cylinder, the pressure of the hydraulic fluid in the cylinder being monitored. The hydraulic fluid 20 is discharged from the cylinder when the pressure of the hydraulic fluid exceeds a predetermined level, thereby allowing the piston of the hydraulic cylinder to move within the cylinder and the conveyor 7 to move downward.
    The resilient elements 18 are arranged in relation to the horizontal beam 13 so that the vertical force exerted on the horizontal beam 13 is applied to the resilient elements 18. When the vertical force exerted on the resilient element 18 exceeds a predetermined limit, the resilient element 18 is resilient. Correspondingly, as the vertical force applied to the spring element 19 decreases and falls below a predetermined limit, the force generated by the spring element 18 moves the horizontal beam 13 upward to its initial position.
    20175959 prh 30 -10- 2017
    The resilient elements 18 are disposed within the supports 14. Each strut 14 comprises one or more strut elements 18. In the embodiment according to the drawings, each strut 14 comprises two strut elements 18 arranged on opposite sides of the horizontal beam 13. The resilient element 18 is arranged in connection with the support 14 so that the vertical force exerted on the horizontal beam 13 is transmitted to the resilient element 18. This is done so that the support body 15 comprises a fixed support plate 19 located on the upper support 16 spaced from the upper support 16. holes provided with bolts 20 on both sides of the horizontal beam 13. The head of the bolt 20 or the nut at the end of the bolt 20 is against the upper surface of the support plate 19 or is otherwise supported on the upper surface of the support plate 19. The resilient element 18 is arranged around the bolt 20 below the upper bracket 16. The resilient element 18 is located between the lower surface of the upper support 16 and the clamp 21, such as a nut threaded to a bolt 20. The spring element 18 is pressed against the upper support 16 by a tensioner 21. The vertical force acting on the horizontal beam 13 is transmitted through the upper support 1 6 to the spring element 1 8.
    When the vertical force acting on the spring element 18 reaches a predetermined limit 20, the spring element 18 is compressed between the upper support and the tensioner 21, whereby the upper support 16 and the horizontal beam 13 move downwards. Correspondingly, as the force applied to the spring element 18 decreases and falls below a predetermined limit, the spring force of the spring element 18 presses the upper support 16 and the horizontal beam 13 upwards. In the embodiment of the drawings 25, the spring element 18 comprises a disc spring pack mounted around a bolt 19.
    Further, the support 15 comprises height adjusting members 22 for adjusting the height of the horizontal beam 13. In the embodiment according to the drawings, the height adjusting members 22 comprise height adjusting bolts with upper support 16, lower 9
    20175959 prh 30 -10- 2017 the support 17 and the horizontal beam 13 between them can be moved vertically relative to the frame 15.
    Further, the arrangement 1 comprises detecting means 23 for detecting the amount of vertical elastic movement of the elastic member 18. The detecting means 23 may determine the amount of vertical elastic movement of the spring element 18 directly or in a quantity comparable to a flexible distance, for example the vertical movement of the conveyor 7 or the rest of the conveyor support structure 9. The detecting means 23 may be used for 10 purposes, for example a detector mounted on a conveyor support structure 9. In the embodiment shown in the drawings, the detecting means 23 is attached to a support 14. The detecting means 23 is a limit switch fixed to a stationary part, e.g. with the beam 13 or the horizontal beam 13, as well as with the vertically movable part. In the embodiment according to the drawings, the piston 24 is arranged against the lower support 17. Each support 14 is provided with a detecting means 23.
    The arrangement 1 also comprises a control unit 25 for controlling the cooling translator 2. The control unit 25 is arranged to stop the rotary movement of the cooling rotator 2 when the downward movement of the conveyor 7, i.e. the elastic travel of the resilient member 18, reaches a predetermined amount. The detection means 23 are in communication with the control unit 25. The signals produced by the detection means 23 are transmitted to the control unit 25 and the control unit 25 controls the cooling translator 2 on the basis of the signal information. The control unit 25 stops the rotary movement of the cooling rotator 2 when the downward movement of the resilient member 18 reaches a predetermined amount. This prevents damage to the cooling roller 2 and / or the conveyor 7 in the event of a malfunction, for example when the cooling roller 2 hits the conveyor 7.
    The operation of one embodiment of the invention will now be described.
    The plate to be cooled is moved to the desired location on the transport elements 8 of the conveyor 7. The disc is located between two consecutive rows of arms 6.
    The cooling wheel 4 of the cooling rotator 2 is then rotated, whereby the rows of arms 6 pivot about the axis of rotation 3. Under the conveyor 7, the bracket hooks 5 of the fork carriage 6 abut against the underside of the plate and lift the plate from the conveyor 7. When the plate or plate stack is at the desired height on the conveyor 7, the movement of the cooling wheel 4 is stopped.
    The bracket hinges 5 of the fork row 6 support the plate during turning. When the plate has rotated 180 degrees between the rows of arms 6, it is lowered to the conveyor on the other side of the cooling rotator 2. Thereafter, the plate is usually transferred to the next cooling rotator or stackable.
    20175959 prh 30 -10- 2017
    For example, when, as a result of a malfunction of the apparatus 1, a downward vertical force is applied to the spring element which reaches a predetermined limit value, the conveyor 7 is moved downwards. The spring element 18 is resilient due to the vertical force and the conveyor moves downward. The amount of downward movement of the conveyor 7 is determined. The amount of downward movement is determined by the detecting means 23 communicating with the cooling translator control unit 25 for controlling the cooling translator 2. When the downward movement of the conveyor 25 reaches a predetermined amount, the rotary movement of the cooling rotator 2 is stopped. The rotary movement of the cooling rotator 2 is stopped by the control unit 25. The conveyor 7 is moved back upward as the vertical force exerted on the conveyor 7 decreases and falls below a predetermined limit. The conveyor 7 is moved upwards by the force exerted by the elastic member 30.
    It will be apparent to one skilled in the art that the various embodiments of the invention are not limited solely to the above examples, and may therefore vary within the scope of the following claims.
    权利要求:
    Claims (12)
    [1]
    THE PATENT REQUIRES MUSIC
    An arrangement (1) for cooling plates, comprising (1)
    - cooling rotator (
    [2]
    2) having the shape of the brackets (5)
    5 rows of arms (6) between which the plate to be cooled can be fitted and adapted to rotate about the axis of rotation (3),
    - at least one conveyor (7) arranged on the side of the cooling rotator (2) for introducing and / or removing the plates of the cooling rotator (2), characterized in that the conveyor (7)
    10, one or more resilient elements (18) arranged to resiliently and permit downward movement of the conveyor (7) when a vertical force on the resilient element (18) reaches a predetermined limit.
    Arrangement (1) according to Claim 1, characterized by a control unit (25) for controlling the cooling rotator (2), which control unit (25) is arranged to stop the rotational movement of the cooling rotator (2) when the vertical spring movement of the spring element (18) or reach a predetermined amount.
    [3]
    Arrangement (1) according to Claim 2, characterized in that the arrangement (1) comprises one or more detection means (23) for detecting the amount of vertical elastic movement of the spring element (18) or the amount of downward movement of the conveyor (7).
    25, and that the control unit (25) is arranged to control the cooling translator (2) on the basis of signal information received from the detection means (23).
    [4]
    An arrangement (1) according to any one of the preceding claims,
    30 characterized in that the spring element (18) is arranged to move the conveyor (7) back up to its working height when the spring element
    20175959 prh 30 -10- 2017 The vertical force applied to the segment (18) is below the predetermined limit.
    [5]
    An arrangement (1) according to any one of the preceding claims,
    5 characterized in that the conveyor (7) comprises a support structure (9) for supporting the conveyor (7) vertically, and that the spring element (18) is arranged to flex and allow downward movement of the support structure (9) when the vertical force on the spring element (18) reaches a predetermined limit. value.
    [6]
    Arrangement (1) according to Claim 5, characterized in that the support structure (7) comprises vertical beams (10) fixed to the horizontal beam (13) and that the spring element (18) is arranged to flex and allow the horizontal beam (13) to move downwards when joustoele-
    The vertical force exerted on the 15 cents (18) reaches a predetermined limit.
    [7]
    Arrangement (1) according to one of the preceding claims, characterized in that the spring element (18) comprises springs and / or elastic members.
    20 ta material.
    [8]
    A method for cooling plates by a cooling arrangement (1) comprising a cooling rotator (2) having rows of rows (6) formed by bracket studs (5) between which the plate to be cooled is
    25 adjustable and rotated about a common axis of rotation (3) and for introducing at least one of the conveyor (7) disposed on the side of the cooling rotator (2) to and / or removing the cooling rotator (2), characterized in that the conveyor (7) when a vertical force 30 is applied to the conveyor (7) which reaches a predetermined limit value.
    [9]
    Method according to claim 8, characterized in that the amount of downward movement of the conveyor (7) is determined and the rotational movement of the cooling rotor (2) is stopped when the downward movement of the conveyor (7) reaches a predetermined amount.
    [10]
    Method according to claim 8 or 9, characterized in that the conveyor (7) is moved back upwards when the vertical force exerted on the conveyor (7) falls below a predetermined limit.
    [11]
    A method according to any one of claims 8 to 10, characterized in that the conveyor (7) comprises one or more resilient elements (18) which are resilient when applied to a force exceeding a predetermined limit value.
    [12]
    Method according to one of the preceding claims 11, characterized in that the conveyor (7) comprises a support structure for supporting the conveyor (7) in a vertical direction, the support structure (7) comprising vertical beams (10) fixed to the horizontal beam (13). , and who
    The spring element (18) resilates and allows the horizontal beam (13) to move downwardly when the force exerted on the spring element (18) reaches a predetermined limit.
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    同族专利:
    公开号 | 公开日
    FI128810B|2020-12-31|
    DE102018127139A1|2019-05-09|
    DE202018106206U1|2019-06-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2020-12-31| FG| Patent granted|Ref document number: 128810 Country of ref document: FI Kind code of ref document: B |
    优先权:
    申请号 | 申请日 | 专利标题
    FI20175959A|FI128810B|2017-10-30|2017-10-30|Arrangement and method for cooling boards|FI20175959A| FI128810B|2017-10-30|2017-10-30|Arrangement and method for cooling boards|
    DE202018106206.9U| DE202018106206U1|2017-10-30|2018-10-30|Arrangement for cooling plates|
    DE102018127139.5A| DE102018127139A1|2017-10-30|2018-10-30|Arrangement for cooling plates|
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