Smoothing device, gypsum board manufacturing device

Abstract

A smoother has a conveyance device of a shaped body; a pair of arms respectively arranged at both end portion sides in a width direction of the conveyance device, a length direction end portion being able to swing in an up-down direction with respect to a conveyance surface of the conveyance device; a smoother plate fixed at one end portion side in a length direction of the pair of arms; a hammer respectively installed on the pair of arms, being able to move in the length direction of the arms; a hammer position changing device changing a position of the hammer on the arm; and a first control device controlling the position of the hammer on the arm by means of the hammer position changing device.

Description

Technical Field

[0001] This invention relates to a smoother and a gypsum board manufacturing apparatus. Background Technology

[0002] Patent document 1 discloses a slurry forming apparatus, which has the following features:

[0003] The moving belt receives and transports the continuously supplied uncured curing slurry onto the moving surface;

[0004] A first roller, which is free to rotate, is disposed on the moving belt and has a rotation axis that is oriented in a direction that is transverse to the conveying direction of the moving belt;

[0005] A second, freely rotating roller is positioned downstream of the first roller in the conveying direction, opposite to the first roller, and at a desired interval from the moving surface. It has a rotation axis parallel to the rotation axis of the first roller.

[0006] Width-defining components are disposed on both sides of the moving belt to define the flow width of the curable slurry on the moving surface.

[0007] The curable slurry is supplied from above the first roller and the second roller to between them, and the curable slurry is spread out in the width direction of the moving belt by the first roller and the second roller. At the same time, the curable slurry is supplied from between the first roller and the second roller to the moving surface, forming a plate-shaped body with a width defined by the width defining component and a thickness defined by the interval between the moving surface and the second roller.

[0008] [Existing Technical Documents]

[0009] [Patent Documents]

[0010] [Patent Document 1] Japanese Patent Application Publication No. 2001-277222 Summary of the Invention

[0011] [The problem the invention aims to solve]

[0012] For example, as disclosed in Patent Document 1, various slurries have conventionally been molded into shaped bodies by forming a molding machine.

[0013] The plate-shaped molded body obtained by forming slurry using a molding machine has a generally smooth surface. However, depending on the slurry supply method in the molding machine, sometimes a portion of the molded body will bulge slightly in the thickness direction compared to the target shape. Furthermore, during the transport of the molded body after molding, warping or partial expansion may occur due to drying. In the case of manufacturing molded bodies such as gypsum board where a covering component such as board base paper is placed on the surface of the slurry, internal pressure increases due to air bubbles or other factors between the slurry and the covering component, sometimes causing partial expansion of the molded body's surface.

[0014] Therefore, in order to correct the expansion or warping of the molded body and improve the smoothness of the surface, a device called a smoother has been used in the past. This device further flattens and smooths the surface of the molded body after molding by the molding machine.

[0015] In order to smooth the surface of a molded object or the like using a smoother, it is necessary to press the surface of the molded object with a smoother plate while applying an appropriate load to smooth the surface, so as to make it flat. Therefore, in the past, a glass plate with sufficient weight was sometimes used for the smoother plate that comes into contact with the molded object.

[0016] However, the load required to smooth the surface varies depending on the type and size of the molded object being manufactured. Furthermore, since the weight of the glass plate used for the smoother plate is predetermined and cannot be changed, it is necessary to prepare multiple smoother plates of different weights in advance. If the type of molded object being manufactured changes, a new smoother plate of suitable weight must be used each time. Therefore, from the viewpoint of improving productivity, a smoother that allows for easy changes to the load applied to the molded object without requiring such cumbersome operations as changing the smoother plate is required.

[0017] In view of the problems of the prior art, one aspect of the present invention aims to provide a smoother that can easily change the load applied to the molded body.

[0018] [Methods for solving the problem]

[0019] To address the aforementioned issues, according to one aspect of the present invention, a smoother is provided, comprising:

[0020] Conveying device for shaped parts;

[0021] A pair of arms are respectively disposed at both ends in the width direction of the conveying device, and the ends in the length direction are able to swing in the vertical direction relative to the conveying surface of the conveying device;

[0022] A smoother plate is fixed to one end side of the pair of arms along their length.

[0023] Hammers are mounted on a pair of arms and are capable of moving along the length of the arms.

[0024] A hammer position changing device for changing the position of the hammer on the arm; and

[0025] The first control device controls the position of the hammer on the arm by means of the hammer position changing device.

[0026] [The effects of the invention]

[0027] According to one embodiment of the present invention, a smoother capable of easily changing the load applied to the molded body can be provided. Attached Figure Description

[0028] Figure 1 This is an illustration of a smoother according to one method of the present disclosure.

[0029] Figure 2 yes Figure 1 The smoother shown is a side view.

[0030] Figure 3 This is an illustration of a gypsum board manufacturing apparatus according to one aspect of this disclosure. Detailed Implementation

[0031] Hereinafter, the embodiments for carrying out the present invention will be described with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described below. Various modifications and substitutions can be made to the embodiments described below without departing from the scope of the present invention.

[0032] [Smoother]

[0033] An example structure of the smoother in this embodiment will be described. Furthermore, the smoother in this embodiment is, for example, as described later. Figure 3 The gypsum board manufacturing apparatus 30 shown is a device for making the surface of the molded body formed by the molding machine 37 flat and smooth, and can also be called a smoothing device, etc.

[0034] A forming machine is a device that shapes an amorphous slurry into a predetermined shape. In contrast, the smoother of this embodiment is a device for correcting the shape of a molded body formed by the forming machine. Specifically, for example, as described above, it is a device for smoothing the surface of the molded body. Therefore, the smoother of this embodiment can be arranged downstream of the forming machine in the conveying direction of the molded body, enabling the final forming of the molded body.

[0035] The smoother of this embodiment is a smoother that smooths the surface of a shaped body conveyed by a conveying device, and may include the following: conveying device, arm, smoother plate, hammer, hammer position changing device, and first control device.

[0036] use Figure 1 , Figure 2 The structure of the smoother in this embodiment will be described. Figure 1 This is a top view of the smoother 10 in this embodiment. Figure 2 Observe along arrow A in the box. Figure 1 A side view of the smoother is shown. Additionally, in Figure 1 , Figure 2 The text also includes references to any components that the smoother in this embodiment can have, and is not limited to this method. Additionally, in... Figure 1 In the middle, the following was omitted. Figure 2 The description includes various control devices and their connection lines to each component. Figure 2 For ease of description, only the connection lines between the control device 22 and the components on one side of the arm 1021 are shown. However, the same connection lines can also be arranged between the control device 22 and the hammer position changing device 1052, smoother plate position changing device 1062, etc. on the other side of the arm 1022.

[0037] exist Figure 1 , Figure 2 In this diagram, the X-axis is the conveying direction of the forming body 11, the Y-axis is the width direction of the forming body 11 and the conveying device 12, and the Z-axis is the thickness direction of the forming body 11, which becomes the height direction (vertical direction) of the smoother 10, etc. Alternatively, the direction of the Z-axis may also be referred to as the vertical direction relative to the conveying surface of the conveying device 12.

[0038] exist Figure 1 , Figure 2 In the figure, the formed body 11 is conveyed by the conveying device 12 along the X-axis direction, i.e., along the arrow B in the box, from right to left. Furthermore, in... Figure 1 , Figure 2 In this context, "the surface of the conveyed molded body 11 is smoothed by the smoother 10 of this embodiment" indicates the state in which the surface of the molded body 11 is smoothed.

[0039] The components of the smoother in this embodiment will be described below.

[0040] (1) About smoothers

[0041] (1-1) Conveying device

[0042] The smoother 10 of this embodiment may have a conveying device 12 for the forming body 11. Figure 1 , Figure 2In the example shown, the conveying device 12 is a belt conveyor in which a belt 122 is suspended between a pair of pulleys 121 and a roller 123 for supporting the forming body 11 is arranged between the pair of pulleys 121. However, the conveying device 12 is not limited to the above-described manner, as long as it is a device capable of supporting and conveying the forming body 11.

[0043] The conveying device 12 can be one or more types selected from, for example, belt conveyors, roller conveyors, chain conveyors, etc. Alternatively, the conveying device 12 can also have multiple conveying devices, such as belt conveyors and roller conveyors.

[0044] The surface of the molded body 11 placed on the conveying device 12 becomes the conveying surface of the conveying device 12.

[0045] (1-2) Arm, Support Shaft

[0046] The smoother 10 of this embodiment may have a pair of arms 102. The arms 102 are respectively disposed at both ends of the forming body 11 or the conveying device 12 in the width direction.

[0047] That is, the smoother 10 in this embodiment may have two arms 102, arm 1021 and arm 1022.

[0048] There are no particular limitations on the shape of the arm 102; for example, it can be rod-shaped or columnar. However, rod-shaped or columnar shapes do not necessarily mean geometrically precise shapes, and deformations may be applied as needed to set up the hammer, etc., as described later.

[0049] In addition, the arm 102 is preferably positioned at a predetermined distance from the end of the conveying device 12 in the width direction so as not to interfere with the conveying device 12 of the conveying formed body 11.

[0050] The arm 102 can be configured such that its longitudinal end can swing vertically relative to the conveying surface of the conveying device 12. That is, the longitudinal end of the arm 102 can be configured to swing vertically along... Figure 1 , Figure 2 The Z-axis can swing (move).

[0051] There are no particular limitations on the structure that allows the end of the arm 102 to swing in the longitudinal direction. For example, the smoother 10 may have a support shaft 103A connected to the arm 102.

[0052] As described above, by connecting the support shaft 103A to the arm 102, the two ends of the arm 102 in the longitudinal direction can swing up and down, i.e., move, using the support shaft 103A as a fulcrum (rotation axis). For example, in Figure 2In this process, by rotating arm 102 to the right about support shaft 103A, the smoother plate 101 (described later) is moved downward, allowing the smoother plate 101 to contact and press against the surface of the molded body 11. At this time, by adjusting the force of rotation to the right, or in other words, the force of pressing downward through the smoother plate 101, the load applied to the surface of the molded body 11 can be adjusted.

[0053] In addition, by rotating the arm 102 to the left about the support shaft 103A, the smoother plate 101 is moved upward, thereby reducing the load applied to the molding body 11 and moving the smoother plate 101 away from the molding body 11.

[0054] The support shaft 103A can be arranged horizontally and perpendicular to the conveying direction of the forming body 11. The end of the support shaft 103A that is not connected to the arm 102 can also be connected to the bearing 103B. Alternatively, the support device 103 can be formed by the support shaft 103A and the bearing 103B.

[0055] like Figure 1 As shown, the support device 103 described above can also be provided at both ends of the forming body 11 or the conveying device 12 in the width direction. For this purpose, the smoother 10 may include support device 1031 and support device 1032. In addition, the support device 1032 may also have a support shaft and a bearing.

[0056] (1-3) Smoother plate

[0057] The smoother plate 101 is a component that contacts the surface of the molded body 11 and smooths the surface of the molded body 11 by making the surface flat. The smoother plate 101 can horizontally contact and press the surface of the molded body 11, such as plasterboard.

[0058] The smoother plate 101 can be any plate-shaped body, and its shape is not particularly limited.

[0059] However, in order not to damage the surface of the conveyed molded body 11, when viewing the smoother plate 101 from the side, the corner 101A located upstream of the conveying direction of the molded body 11 and on the side opposite to the molded body 11 (see reference) Figure 2 It is preferable to chamfer the corners. That is, when the smoother plate 101 is viewed from the side, the corner 101A is preferably a curve that bulges outward.

[0060] Furthermore, since the lower surface 101B of the smoother plate 101, that is, the surface opposite to the molded body 11, is the surface that flattens and smooths the upper surface of the molded body 11, it is preferably a flat surface. When the smoother plate 101 is viewed from the side, the portion corresponding to the lower surface 101B may, for example, have a straight shape.

[0061] The smoother plate 101 can be fixed or supported on the arm 102 at any position on the arm 102, but if Figure 1 , Figure 2 As shown, it is preferable to fix and support it at one end of the arm 102 along its length. As described above, since both ends of the arm 102 along its length can swing vertically, by fixing the smoother plate 101 to one end of the arm 102 along its length, the smoother plate 101 can swing vertically in relation to the arm 102. That is, the smoother plate 101 can be configured to be fixed to a pair of arms 102 and can swing vertically about the aforementioned support shaft 103A as a fulcrum.

[0062] There are no particular limitations on the material of the smoother plate 101. It can be any material that can make the surface of the molded body 11 smooth, such as glass, various metals, various resins, etc.

[0063] Furthermore, in order to prevent the load applied to the molded body 11 from escaping downwards when the smoother plate 101 is used to press and smooth the molded body 11, it is preferable to have a load-bearing component sandwiched below the portion where the smoother plate 101 is located. Figure 1 , Figure 2 The diagram illustrates an example of a belt 122 equipped with a conveyor 12 as a component for supporting the load, and a more preferred example of a roller being arranged below the belt 122, but is not limited to this arrangement. Rollers of the conveyor, support plates (not shown), etc., may also be provided as components for supporting the load.

[0064] (1-4) Hammer

[0065] Hammer 104 is mounted on a pair of arms 102 and can move along the length of the arms 102.

[0066] Hammer 104 can be mounted on each arm 102, and as described above, can be configured to be able to run along the length direction of the arm 102, i.e., along Figure 1 , Figure 2 The double arrows C1 and C2 move.

[0067] Hammer 104 can be disposed on each arm 102 as described above, such as Figure 1 As shown, a hammer 1041 can be installed on arm 1021 and a hammer 1042 can be installed on arm 1022.

[0068] In order to facilitate easy movement along the length of the arm 102 via the hammer position changing device 105 described later, the hammer 104 preferably has a linear guide rail, linear shaft, belt or other moving device pre-installed on the arm 102 and mounted on the moving device.

[0069] There are no particular restrictions on the weight and material of the hammer 104; it can be selected according to the type of shaped body 11 being manufactured and the required load range.

[0070] The smoother plate 101 is configured, for example, to be able to swing up and down around the support shaft 103A. Furthermore, by moving the hammer 104 mounted on the arm 102 along the length of the arm 102, the load applied to the molded body 11 can be varied using the smoother plate 101 supported by the arm 102. Therefore, according to the smoother 10 of this embodiment, the load applied to the molded body 11 can be easily varied by changing the position of the hammer 104 on the arm 102.

[0071] (1-5) Hammer position changing device

[0072] The hammer position changing device 105 can change the position of the hammer 104 on the arm 102.

[0073] The structure of the hammer position changing device 105 is not particularly limited, as long as it can make the hammer position along the length direction of the arm 102, that is, along... Figure 1 , Figure 2 The device that allows the double arrows C1 and C2 to slide is sufficient. The hammer position changing device 105 may, for example, have a linear motor, electric motor, or other drive device 105A.

[0074] like Figure 2 As shown, in addition to the aforementioned linear motor and other drive devices 105A, the hammer position changing device 105 may also have an encoder 105B for detecting the position of the hammer 104.

[0075] The hammer position changing device 105 can also be installed on each arm 102, such as... Figure 1 As shown, a hammer position changing device 1051 can be installed on arm 1021 and a hammer position changing device 1052 can be installed on arm 1022.

[0076] (1-6) First control device, storage device

[0077] First control device 221 (refer to) Figure 2 The hammer 104 on the arm 102 can be controlled by the hammer position changing device 105.

[0078] There are no particular limitations on the control of the first control device 221; for example, it can also be configured based on the input / output device 24 (see reference) connected to the first control device 221. Figure 2 The input conditions and input values ​​are used to control the position of the hammer 104 on the arm 102.

[0079] Additionally, the smoother 10 of this embodiment may also have a storage device 23. In this case, the first control device 221 may also control the position of the hammer 104 on the arm 102 based on control conditions corresponding to the type of molded body 11 stored in the storage device 23.

[0080] Specifically, depending on the type of molded body 11 input from the input / output device 24, the first control device 221 can read control conditions from the storage device 23 and control the position of the hammer 104 on the arm 102. That is, the position of the hammer 104 on the arm 102 can be controlled according to the formula of control conditions predetermined according to the type of molded body 11.

[0081] In this way, the position of the hammer 104 on the control arm 102 is controlled according to the control conditions corresponding to the type of molded body 11 to be manufactured, thereby enabling the manufacture of molded bodies 11 with stable quality without relying on the operator. In addition, by reading the control conditions from the storage device 23, the type of molded body 11 to be manufactured can be easily changed, thus enabling the switching of the type (variety) of molded body 11 to be manufactured in a short time.

[0082] Furthermore, depending on the weather, ambient temperature, etc., the appropriate control conditions may sometimes change. Therefore, it is also possible to configure the position of the hammer 104 on the arm 102 to be controlled under predetermined control conditions even when the position of the hammer 104 on the arm 102 is controlled according to the type of molded body 11, and further control the position of the hammer 104 on the arm 102 based on conditions input from the input / output device 24, etc.

[0083] For example, the appropriate load applied to the molded body through the smoother plate varies depending on the dimensions and type of the molded body to be manufactured, such as its width. For instance, applying an excessive load may damage the surface of the molded body 11, while insufficient load may prevent the surface of the molded body from being sufficiently smoothed. In particular, in conventional smoothers, when the width of the smoother plate is relatively large compared to the molded body being manufactured, it is possible to apply an excessive load to the molded body. Therefore, conventional smoothers that require a smoother plate with a width and weight corresponding to the width of the molded body being manufactured are sometimes difficult to use a single smoother for molded bodies of different widths.

[0084] However, according to the smoother 10 of this embodiment, as described above, the position of the hammer 104 on the arm 102 can be changed using the hammer position changing device 105, the first control device 221, etc., and the load applied to the molded body 11 can be easily changed using the smoother plate 101. That is, the smoother 10 of this embodiment is a load-variable smoother. Therefore, even when manufacturing different types of molded bodies 11 with different dimensions such as width, the load applied to the molded body 11 can be changed by simply changing the position of the hammer 104, thus applying an appropriate load to the molded body 11. Therefore, compared with conventional smoothers, the smoother 10 of this embodiment can be applied to more types of molded bodies in terms of dimensions such as width and variety, thereby improving productivity.

[0085] The smoother 10 of this embodiment has a pair of arms 102, namely arms 1021 and arms 1022, as described above. A hammer 1041 is mounted on arm 1021, and a hammer 1042 is mounted on arm 1022. Therefore, the first control device 221 can also independently control the hammers 1041 and 1042. That is, the first control device 221 can also independently control the position of the arms 102 in the longitudinal direction using the hammers 1041 and 1042.

[0086] like Figure 1 As shown, the smoother plate 101 has a shape that is longer in the width direction, i.e., the Y-axis direction, of the forming body 11. Figure 1 In this context, it indicates that the center line CL11 in the width direction of the formed body 11 coincides with the center line CL12 in the width direction of the conveying device 12. However, depending on the type of formed body 11 manufactured, there are also cases where the center line CL11 and the center line CL12 differ. That is, there are also cases where the formed body 11 is conveyed and formed at either end of the conveying device 12 in the width direction. In these cases, there are appropriate differences in the magnitude of the load at both ends of the smoother plate 101 in the length direction. As mentioned above, since glass plates have been conventionally used as smoother plates, it has been difficult to adjust the magnitude of the load on the left and right sides of the smoother plate.

[0087] In contrast, in the smoother 10 of this embodiment, the load applied to the smoother plate 101 is adjusted by controlling the position of the hammer 104 on the arm supporting the smoother plate 101. Moreover, as described above, the first control device 221 can also independently control the hammers 1041 and 1042. Therefore, the smoother 10 according to this embodiment can also independently control the magnitude of the load at each end side in the length direction of the smoother plate 101.

[0088] Therefore, in this embodiment, the first control device 221 of the smoother preferably controls the position of the hammers 104 on the two arms 102 independently according to the position of the formed body 11 in the width direction of the conveying device 12 that conveys the formed body 11. By performing the above control, appropriate loads can be applied to the left and right sides of the smoother plate 101 respectively, and the surface of the formed body 11 can be smoothed in particular.

[0089] For example, when the position of the molded body 11 in the width direction of the conveying device 12 is determined by the manufacturing conditions (control conditions) of the molded body 11 stored in the storage device 23, the position of the molded body 11 can be determined according to these manufacturing conditions. Alternatively, a sensor for detecting the position of the molded body 11 on the conveying device 12 can be provided as needed, and the position of the molded body 11 can be determined based on the detection result of this sensor. Furthermore, the first control device 221 can independently calculate the appropriate position of the hammer 104 on each arm 102 based on the position of the molded body 11 in the width direction of the conveying device 12, and control it using the hammer position changing device 105.

[0090] Furthermore, even when the centerline CL11 in the width direction of the forming body 11 coincides with the centerline CL12 in the width direction of the conveying device 12, there are still cases where the appropriate load on each end side in the length direction of the smoother plate 101 is different. Therefore, even when CL11 and CL12 coincide, the first control device 221 can independently control the position of the hammers 104 on the two arms 102 as needed.

[0091] While the structure of the first control device 221 is not particularly limited, it can include a CPU (Central Processing Unit), main storage device, auxiliary storage device, input / output interface, etc., to calculate the appropriate position of the hammer 104 on the arm 102 and to communicate with the hammer position changing device 105. Examples of main storage devices include RAM (Random Access Memory) and ROM (Read Only Memory), while examples of auxiliary storage devices include SSD (Solid State Drive) and HDD (Hard Disk Drive). Examples of input / output interfaces include communication interfaces for exchanging control signals and data with the hammer position changing device 105, etc. The type of communication interface is not particularly limited. Any wired or wireless communication method can be used as the communication interface; for example, wired LAN (Local Area Network) and wireless LAN are examples.

[0092] In addition, the storage device 23 described above is composed of the auxiliary storage device described above, or it can be integrally formed with the first control device 221.

[0093] exist Figure 2 In this document, the first control device 221 and the second control device 222 described later are described together as a single control device 22, but this is not a limitation. The first control device 221 may also be configured as a different control device from the second control device 222 described later.

[0094] The control device 22 can also be connected to the aforementioned input / output device 24. The structure of the input / output device 24 is not particularly limited; for example, it can have a user interface such as a touch panel, keyboard, display screen, and operation buttons, so that the user can input specified conditions.

[0095] (1-7) Smooth plate position changing device, second control device

[0096] The smoother 10 in this embodiment may also include a smoother plate position changing device 106 and a second control device 222.

[0097] The smoother plate position changing device 106 can change the position of the smoother plate in the height direction.

[0098] The second control device 222 can control the position of the smoother plate 101 in the height direction by means of the smoother plate position changing device 106.

[0099] The smoother plate position changing device 106 can be any device that can change the position of the arm 102 in the height direction. Its structure is not particularly limited. For example, it can be composed of a pneumatic cylinder or an oil cylinder (hydraulic cylinder).

[0100] The smoother plate position changing device 106 can be installed on each arm 102, such as Figure 1 As shown, a smoother plate position changing device 1061 can be provided on arm 1021, and a smoother plate position changing device 1062 can be provided on arm 1022.

[0101] Regarding the second control device 222, as described above, it can be configured as a single control device 22 together with the first control device 221, or it can be configured separately from the first control device 221. Since the second control device 222 can have the same structure as the first control device, its description is omitted here.

[0102] The control of the position of the smoother plate 101 in the height direction by means of the smoother plate position changing device 106 by the second control device 222 is not particularly limited.

[0103] For example, when the smoother 10 has a residue detection sensor 107 (described later), the second control device 222 can move the smoother plate 101 upwards, i.e., in the direction away from the forming body 11 along the Z-axis, based on the detection result of the residue detection sensor 107 (ascending process). Specifically, when the residue detection sensor 107 detects residue adhering to the side surface 101S of the smoother plate 101, the second control device 222 can move the smoother plate 101 upwards. Furthermore, the side surface 101S of the smoother plate 101 refers to... Figure 1 As shown, it is arranged in the smoother plate 101, on the upstream side of the conveying direction of the forming body 11, for example, on the forming machine side (not shown).

[0104] After the lifting process, residues adhering to the sides 101S of the smoother plate 101 can be removed automatically or manually as needed. Then, after confirming visually or by sensors that no residues are adhering to the sides 101S of the smoother plate 101, the second control device 222 can lower the smoother plate 101 automatically or through input from the input / output device 24 (lowering process). Furthermore, the surface smoothing treatment of the molded body 11 can be restarted. Additionally, the second control device 222 can also control the lowering of the smoother plate 101 after a certain period of time following its lifting.

[0105] When the smoother plate position changing device 106 is composed of a cylinder or similar device, before performing the above-mentioned lifting process, such as Figure 2 As shown, the lever 106A of the smoother plate position changing device 106 can be in a retracted state. Specifically, for example, the lever 106A of the smoother plate position changing device 106 can be in a state where it is not in contact with the arm 102. Furthermore, during the above-mentioned rising or falling process, by extending the lever 106A of the smoother plate position changing device 106 from the retracted state to contact the arm 102, the position of the smoother plate 101 in the height direction can be controlled by means of the arm 102.

[0106] In the above-described lifting process, the position where the smoother plate 101 moves upward is not particularly limited; for example, the smoother plate 101 can be raised to a predetermined retraction position. Then, after the lowering process, the smoother plate 101 can be lowered to a position where the surface of the molded body 11 can be smoothed. After the lowering process, as... Figure 2 As shown, the rod 106A is retracted, so that the rod 106A of the smoother plate position changing device 106 is in a state where it is not in contact with the arm 102.

[0107] Furthermore, the control of the position of the smoother plate 101 in the height direction by the smoother plate position changing device 106 performed by the second control device 222 is not limited to the above-described method.

[0108] Since the smoother 10 in this embodiment is a device for smoothing the surface of the molded body 11 formed by the molding machine, it is arranged on the downstream side of the conveying direction of the molded body 11, which is closer to the molding machine than the molding machine. Therefore, the second control device 222 can also be configured to control the position of the smoother plate 101 in conjunction with the molding machine.

[0109] Specifically, for example, in the case of a rising or falling motion of the forming machine, the second control device 222 can correspondingly raise or lower the smoother plate 101. Additionally, if described later... Figure 3 Taking the gypsum board manufacturing apparatus 30 as an example, when the horizontal plate 371 above the forming machine 37 rises, the smoother plate 101 rises. Conversely, when the horizontal plate 371 above the forming machine 37 falls, the smoother plate 101 falls. The rise or fall of the smoother plate 101 can be selected, for example, based on the operation of the forming machine or control conditions predetermined according to the type of molded body 11 stored in the storage device 23. At this time, the first control device 221 can also change the position of the hammer 104 on the arm 102 using the hammer position changing device 105.

[0110] The control content of the second control device 222 is not limited to the above-described manner. For example, it can also be controlled to raise or lower the position of the smoother plate 101 based on the input from the input / output device 24.

[0111] (1-8) Residue Detection Sensor

[0112] The smoother 10 may also have a residue detection sensor 107.

[0113] In this case, as described above, when the residue detection sensor 107 detects residue adhering to the side 101S on the upstream side of the forming body 11 in the conveying direction of the smoother plate 101, the second control device 222 can move the smoother plate 101 upward by means of the smoother plate position changing device 106.

[0114] The molded body 11 is typically formed in a molding machine (not shown) and then conveyed by a conveying device 12 to the area where the smoother 10 of this embodiment is provided. However, during molding or conveying from the molding machine, residue sometimes adheres to its surface, and this residue adheres to the side surface 101S of the smoother plate 101. If the surface is smoothed by the smoother 10 while the residue is adhered to the side surface 101S of the smoother plate 101, it is possible that a recess will be formed on the surface of the molded body 11 due to the residue.

[0115] Therefore, the smoother 10 in this embodiment may have a residue detection sensor 107.

[0116] The installation position of the residue detection sensor 107 is not particularly limited, as long as it can monitor and detect the position where residue adheres to the side 101S of the smoother plate 101. In addition, residue adhering to the side 101S of the smoother plate 101 also includes residue accumulating on the side 101S or being trapped there.

[0117] The residue detection sensor 107 can be provided, for example, on the arm 102. Specifically, a transmitter 1071 with a residue detection sensor can be provided on the arm 1021, and a receiver 1072 with a residue detection sensor can be provided on the arm 1022. Furthermore, if the signal transmitted from the transmitter 1071 is blocked by residue and the receiver 1072 cannot receive it, it can be determined that residue is attached to the side 101S of the smoother plate 101.

[0118] If it is determined that there is residue on the side 101S of the smoother plate 101, the second control device 222 can move the smoother plate 101 upward, that is, away from the forming body 11 along the Z-axis direction, by the smoother plate position changing device 106 (ascending process).

[0119] In addition, after the rising process, the aforementioned falling process can be performed as needed.

[0120] By performing the above control, it is possible to prevent the formation of recesses on the surface of the molded body 11 due to residues adhering to the side 101S of the smoother plate 101.

[0121] After the above control is performed, an alarm can be issued through the input / output device 24 as needed, or the surface smoothing process of the molded body 11 can be restarted after a certain period of time.

[0122] The structure of the residue detection sensor 107 is not particularly limited; for example, an infrared sensor can be used.

[0123] (1-9) Smooth plate position measuring device

[0124] If necessary, the smoother 10 may also have a smoother plate position measuring device 21 (see reference). Figure 2 ).

[0125] The thickness of the manufactured molded body 11 can also be roughly determined by measuring the position of the smoother plate 101 using the smoother plate position measuring device 21.

[0126] exist Figure 2 The example shown is a device that places a contact-type smoother plate position measuring device 21 in an area where the molded body 11 does not pass, and that contacts the smoother plate 101 from below to detect its position. However, the smoother plate position measuring device 21 is not particularly limited in structure as long as it is a mechanism capable of measuring the position of the smoother plate 101. The smoother plate position measuring device 21 can be a contact-type position measuring device or a non-contact position measuring device using a laser or the like.

[0127] Thus, with Figure 1 , Figure 2 Taking the smoother 10 shown as an example, the structure of the smoother in this embodiment has been described. However, the smoother in this embodiment may also have multiple units, such as two or three units, along the conveying direction of the forming body 11. Figure 1 , Figure 2 The smoother 10 shown. In cases where there are multiple smoothers 10, it can also be called a multi-segment smoother, etc.

[0128] The forming body 11 of the smoother 10 applicable to this embodiment will be described.

[0129] (2) Molded body

[0130] There is no particular limitation on the type of molded body 11 whose surface is smoothed using the smoother 10 of this embodiment. For the smoother 10 of this embodiment, molded bodies 11 obtained by molding various materials for which a flat and smooth surface is required can be applied.

[0131] The shaped body 11 whose surface is smoothed by the smoother 10 of this embodiment is not particularly limited as described above. For example, a shaped body 11 that is required to be made into a plate shape, a shaped body for making gypsum slurry for gypsum board, etc. can be cited.

[0132] Examples of gypsum slurry molding bodies 11 include glass-pad gypsum board, gypsum board containing glass fiber nonwoven fabric, gypsum board as specified in JIS A 6901 (2014), gypsum board that is lighter or heavier than the gypsum board specified in JIS A 6901 (2014), and gypsum slurry molding bodies used for manufacturing slag gypsum board, etc.

[0133] Plaster mortar molded bodies are used as building materials in various buildings, and their sizes and other characteristics vary widely. Furthermore, as described above, the smoother 10 of this embodiment can vary the load applied to the molded body 11 by changing the position of the hammer 104 on the arm 102, thus applying an appropriate load to the molded body 11. Therefore, compared to conventional smoothers, the smoother 10 of this embodiment can accommodate a wider variety of molded bodies in terms of width and type. Therefore, the smoother of this embodiment can improve productivity and achieve particularly high efficiency when manufacturing plaster mortar molded bodies of various sizes and other characteristics compared to conventional smoothers.

[0134] [Gypsum board manufacturing equipment]

[0135] use Figure 3 This section describes an example of the configuration of the gypsum board manufacturing apparatus according to this embodiment.

[0136] like Figure 3 As shown, the gypsum board manufacturing apparatus 30 may include a mixer 34 for forming gypsum slurry, a molding machine 37 for shaping the gypsum slurry supplied from the mixer, and a smoother 10 for smoothing the surface of the molded body formed by the molding machine.

[0137] In the gypsum board manufacturing apparatus 30, the base paper 31, serving as the board material, is conveyed from right to left along arrow D in the figure. Furthermore, a mixer 34 can be arranged near the conveyor line of the base paper 31. Calcined gypsum, water, adhesives or curing accelerators, additives such as mixing agents, foaming agents, and foaming agents, which are raw materials for gypsum slurry, are supplied to the mixer 34 via piping 341. The gypsum slurry is prepared by mixing in the mixer 34. Additionally, in… Figure 3 Only one pipe 341 is shown, but depending on the quantity of raw materials supplied, the raw materials for the gypsum slurry can be supplied to the mixer 34 through multiple pipes. Alternatively, the raw materials for the gypsum slurry can be supplied to the mixer 34 after a portion has been mixed.

[0138] The gypsum slurry 35 is mixed in mixer 34 and then supplied to the backing paper 31 via pipe 342. Additionally, in... Figure 3 Only one pipe 342 is shown, but the gypsum slurry 35 can be supplied through multiple pipes as needed. In addition, a portion of the gypsum slurry 35 can be supplied to and coated onto the paper 32 as needed.

[0139] The base paper 31 travels on the conveyor line together with the gypsum slurry 35, and the edge portion of the base paper 31 in the width direction is bent upward by a guide member (not shown). In addition, the top paper 32 is fed onto the gypsum slurry 35 by the feed roller 33.

[0140] The base paper 31, gypsum slurry 35, and top paper 32 are stacked on the upper and lower platforms 36, forming a continuous stack of three layers, and are supplied to the forming machine 37.

[0141] The forming machine 37 has upper and lower horizontal plates 371 and 372. The lower horizontal plate 372 is horizontally fixed to horizontally transport the base paper 31. The upper horizontal plate 371 is spaced apart and positioned above the lower horizontal plate 372, and is configured to be repositioned by a lifting drive device 373. By controlling the position of the upper horizontal plate 371 by the lifting drive device 373 and adjusting the height of the space formed between the horizontal plates 371 and 372, appropriate forming pressure can be applied to the laminate of the base paper 31, plaster slurry 35, and upper paper 32.

[0142] The smoother 10 described above can be arranged downstream of the forming machine 37 in the conveying direction of the formed body. By smoothing and flattening the surface of the formed body, deformations such as expansion of the formed body can be corrected. Since the smoother 10 has already been described, its description is omitted here.

[0143] Alternatively, the gypsum board manufacturing apparatus 30 of this embodiment may also have multiple smoothers 10. In this case, multiple smoothers 10 can be arranged along the conveying direction of the formed body.

[0144] The gypsum board manufacturing apparatus of this embodiment may also include a drying device, a cutting device, etc., as needed.

[0145] The smoother and gypsum board manufacturing apparatus have been described above with reference to embodiments, but the present invention is not limited to the embodiments described above. Various modifications and alterations can be made within the scope of the spirit of the present invention as described in the claims.

[0146] This application claims priority based on Japanese Patent Application No. 2021-140653, filed with the Japan Patent Office on August 31, 2021, and incorporates the entire contents of Japanese Patent Application No. 2021-140653 into this international application.

[0147] [Symbol Explanation]

[0148] 10 Smoothers

[0149] 101 Smoother Plate

[0150] 101S Smoother plate (upstream side in the conveying direction of the formed body)

[0151] Arms 102, 1021, and 1022

[0152] 103A support shaft

[0153] Hammers 104, 1041, and 1042

[0154] Hammer position changing device 105, 1051, 1052

[0155] 106, 1061, 1062 Smoother Plate Position Changing Device

[0156] 107 Residue Detection Sensor

[0157] 11 formed body

[0158] 12 Conveying device

[0159] 22 Control device

[0160] 221 First Control Device

[0161] 222 Second Control Device

[0162] 23 Storage devices

[0163] 30. Gypsum board manufacturing equipment

[0164] 34 Mixer

[0165] 35 Gypsum mortar

[0166] 37. Molding machine.

Claims

1. A smoother, wherein, have: Conveying device for shaped parts; A pair of arms are respectively disposed at both ends in the width direction of the conveying device, and the ends in the length direction are able to swing in the vertical direction relative to the conveying surface of the conveying device; A smoother plate is fixed to one end of one of the pairs of arms along their length to press the surface of the shaped body. Hammers are mounted on a pair of arms and are capable of moving along the length of the arms. A hammer position changing device that changes the position of the hammer on the arm; as well as The first control device controls the position of the hammer on the arm using the hammer position changing device. The load applied to the surface of the shaped body is adjusted by changing the position of the hammer on the arm.

2. The smoother according to claim 1, wherein, The molded body is a molded body of gypsum slurry.

3. The smoother according to claim 1 or 2, in, It includes: a smoother plate position changing device for changing the position of the smoother plate in the height direction; and The second control device controls the position of the smoother plate in the height direction by means of the smoother plate position changing device.

4. The smoother according to claim 3, wherein, Equipped with a residue detection sensor, If the residue detection sensor detects residue adhering to the side of the smoother plate on the upstream side in the conveying direction of the formed body, The second control device moves the smoother plate upward via the smoother plate position changing device.

5. The smoother according to any one of claims 1, 2, or 4, wherein, It also has a storage device. The first control device controls the position of the hammer on the arm based on control conditions corresponding to the type of the shaped body stored in the storage device.

6. The smoother according to any one of claims 1, 2, or 4, wherein, The first control device determines the position of the formed body in the width direction of the conveying device. The position of the hammer on the arm can be controlled independently.

7. A gypsum board manufacturing apparatus, wherein, have: A mixer that forms gypsum slurry; A molding machine for shaping the gypsum slurry supplied from the mixer; as well as A smoother according to any one of claims 1 to 6 for smoothing the surface of a molded body formed by the forming machine.

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