Cutting equipment, sheet metal fabrication equipment, and equipment for manufacturing gypsum building materials.

Abstract

Provided is a cutting device comprising: a cutting means that is provided along a pathway over which a plate-shaped object to be cut is transported, said cutting means cutting the object to be cut; a downstream-side transport means that is provided further downstream in the transport pathway than the cutting means, said downstream-side transport means transporting the object to be cut; and a foreign-matter-adhesion-prevention means that is provided between the cutting means and the downstream-side transport means and that prevents foreign matter scattered from the cutting means from adhering to the downstream-side transport means.

Description

Cutting equipment, sheet material manufacturing equipment, gypsum building material manufacturing equipment The present invention relates to a cutting device, a sheet member manufacturing device, and a gypsum building material manufacturing device. Among ceramic products, resin products, etc., products having a plate-like shape (sheet shape) have been manufactured and used for various purposes. The manufacturing method of such a plate-shaped product varies depending on the product to be manufactured, but for example, raw materials are kneaded and molded to form a plate-shaped semi-finished product, and the semi-finished product is transported by a conveying means. It is manufactured by cutting, drying, baking, etc. as necessary while being transported. However, during the process of transporting semi-finished products or products (hereinafter also referred to as "semi-finished products, etc."), foreign matter such as chips may adhere to the surface of the semi-finished products. If foreign matter adheres, it may be necessary to exclude it as a rejected product depending on the degree of adhesion, so there is a need to reduce foreign matter from the viewpoint of improving yield, and various studies have been conducted on ways to do this. For example, Patent Document 1 discloses a foreign matter removal method characterized by blowing away foreign matter by jetting air obliquely to the conveyance direction of a conveyor. Japanese Patent Application Publication No. 1-297187 However, according to the foreign matter removal method disclosed in Patent Document 1, although foreign matter can be removed from the surface that is not in contact with the conveyance means, that is, the upper surface, it is not possible to remove foreign matter from the surface that is in contact with the conveyance means. Ta. On the other hand, when manufacturing a plate-shaped product, a cutting device that is placed on the conveyance path of the semi-finished product etc. and cuts the semi-finished product etc. into an arbitrary size is used to transport the semi-finished product etc. There were cases where foreign matter adhered to the surface in contact with the means. For this reason, there has been a need for a cutting device that can suppress the adhesion of foreign matter to the surface of a semi-finished product, which is an object to be cut, that comes into contact with the conveyance means. In view of the problems of the prior art described above, it is an object of the present invention to provide a cutting device that can suppress the adhesion of foreign matter to the surface of the cut object that comes into contact with the conveyance means. In order to solve the above-mentioned problems, the present invention provides a cutting means that is provided on a conveyance path of a plate-shaped object to be cut and that cuts the object to be cut; a downstream conveyance means that is provided downstream of the cutting means in the conveyance path and conveys the object to be cut; A cutting device is provided, comprising: foreign matter adhesion prevention means, which is provided between the cutting means and the downstream conveyance means, and prevents foreign matter scattered from the cutting means from adhering to the downstream conveyance means. do. According to the present invention, it is possible to provide a cutting device that can suppress adhesion of foreign matter to the surface of the object to be cut that comes into contact with the conveyance means. FIG. 1 is a schematic cross-sectional view of a cutting device in an embodiment of the present invention. FIG. 2 is an explanatory diagram of a gas supply means in an embodiment of the present invention. FIG. 1 is an explanatory diagram of a sheet member manufacturing apparatus in an embodiment of the present invention. Hereinafter, modes for carrying out the present invention will be described with reference to the drawings, but the present invention is not limited to the following embodiments, and the following embodiments may be implemented without departing from the scope of the present invention. Various modifications and substitutions can be made to . [Cutting device] An example of the configuration of the cutting device of this embodiment will be described. The cutting device of this embodiment can have the following members. A cutting means that is installed on the transport path of a plate-shaped object to be cut and cuts the object. A downstream conveyance means that is provided on the downstream side of the conveyance path from the cutting means and conveys the object to be cut. Foreign matter adhesion prevention means is provided between the cutting means and the downstream conveyance means and prevents foreign matter scattered from the cutting means from adhering to the downstream conveyance means. The inventors of the present invention have discovered that in a conventional cutting device that is used when manufacturing a plate-shaped product and cuts a semi-finished product into an arbitrary size, it is possible to We conducted extensive research into the causes of foreign matter adhering to surfaces in contact. As a result, the chips, etc. generated when cutting the plate-shaped object by the cutting means included in the cutting device are transported to the downstream side, which is located downstream of the cutting means in the conveyance direction of the object. It became clear that it was attached to the surface of the means. Furthermore, chips adhering to the surface of the downstream conveyance means are transferred to and adhere to the object to be cut, which is being conveyed, resulting in the adhesion of foreign matter to the surface of the object to be cut that is in contact with the conveyance means. I found out. The cutting device of this embodiment was completed based on the knowledge of the above-mentioned inventors of the present invention. The specific configuration of the cutting device of this embodiment will be explained below. First, an example of the configuration of the cutting device of this embodiment will be shown using FIG. 1. As shown in Fig. 1, the X-axis direction is the left-right direction of the paper, that is, the direction parallel to the conveyance direction of the object to be cut, which will be described later, and the direction perpendicular to the conveyance direction of the object to be cut (direction perpendicular to the paper surface). The Y-axis direction and the vertical direction of the paper surface are the Z-axis direction. FIG. 1 shows the height direction (Z-axis direction in FIG. 1) of a cutting device 10 of the present embodiment, and the transport direction (in FIG. A cross-sectional view in a plane parallel to the (X-axis direction) is schematically shown. In the cutting device 10 shown in FIG. 1, a plate-shaped object 11 to be cut is conveyed from the right side to the left side in the figure, that is, along the X-axis direction shown in the figure. A cutting means 12 for cutting the plate-shaped object 11 can be disposed on the conveyance path of the plate-shaped object 11 . A downstream conveying means 131 can be provided downstream of the cutting means 12 in the conveying path, and the workpiece 11 cut by the cutting means 12 is transferred to any downstream conveying means 131. equipment, etc. According to studies by the inventors of the present invention, conventionally, when the cutting means 12 cuts the object 11 having a plate-like shape, chips are generated, and the chips are transported to the downstream side. Among the members constituting the means 131, foreign matter adheres to the surface of the member disposed on the cutting means 12 side in particular, causing foreign matter to adhere to the cut object 11. Therefore, the cutting device 10 of the present embodiment is provided between the cutting means 12 and the downstream conveying means 131 to prevent foreign matter from adhering to the downstream conveying means 131. It can have means 14. The configuration of the foreign matter adhesion prevention means 14 is not particularly limited, and it may be configured so that foreign matter such as chips generated by the cutting means 12 can be suppressed from adhering to the surface of the downstream conveyance means 131. . The foreign matter adhesion prevention means 14 can include, for example, at least one of an intangible foreign matter adhesion prevention means and a tangible foreign matter adhesion prevention means. Note that the foreign matter adhesion prevention means 14 can also be constituted by either one of the means. That is, the foreign matter adhesion prevention means 14 can also be, for example, an intangible foreign matter adhesion prevention means. The foreign matter adhesion prevention means 14 can also be, for example, a tangible foreign matter adhesion prevention means. Furthermore, the foreign matter adhesion prevention means 14 can also include an intangible foreign matter adhesion prevention means and a tangible foreign matter adhesion prevention means. The intangible foreign matter adhesion prevention means means a means for suppressing and preventing foreign matter such as chips scattered from the cutting means 12 from adhering to the downstream conveyance means 131 using intangible materials. The means for preventing adhesion of intangible foreign matter is not particularly limited, but for example, an air curtain (air curtain device) that uses gas as the intangible material and has a gas supply means equipped with a gas ejection part that can eject (inject) the gas. etc. In the case where the intangible foreign matter adhesion prevention means is, for example, an air curtain that uses gas as the intangible material and has a gas supply means equipped with a gas ejection part that can eject (inject) the gas, the gas of the gas supply means that the air curtain has The gas ejected from the ejection part can form a gas barrier (air curtain flow). Therefore, it is possible to suppress the chips generated by the cutting means 12 from scattering downstream in the conveyance direction of the object to be cut and from adhering to the downstream conveyance means 131. Then, the chips adhering to the downstream conveyance means 131 are transferred, and it is possible to suppress foreign matter such as chips from adhering to the surface of the workpiece 11 in contact with the downstream conveyance means 131, that is, the lower surface 11a. Note that the direction of the gas ejected by the gas ejection part of the gas supply means included in the air curtain is not particularly limited; can be configured to do so. In addition, the tangible foreign matter adhesion prevention means means a means for suppressing and preventing foreign matter such as chips scattered from the cutting means 12 from adhering to the downstream conveying means 131 using a tangible object. Specifically, the tangible foreign matter adhesion prevention means can include one or more types selected from, for example, a plate-like or sheet-like barrier, a sponge, a scrubber, and a brush. Further, the means for preventing adhesion of tangible foreign matter can also be constituted by one or more types selected from a plate-like or sheet-like barrier, a sponge, a scrubbing brush, and a brush. When the tangible foreign matter adhesion prevention means includes a plate-like or sheet-like barrier, a sponge, a scrubbing brush, and a brush, such members are preferably formed along the Y-axis direction in the figure. . Among the tangible foreign matter adhesion prevention means, the part that functions as a barrier to prevent foreign matter such as chips generated by the cutting means 12 from adhering to the surface of the downstream conveyance means 131 is a downstream conveyor such as a sponge or a scrubbing brush. If the means 131 is made of a material that is unlikely to damage the means 131, a part of the material is the surface of the downstream conveying means 131, for example, if the downstream conveying means 131 has a conveying roller 131a described later, the surface of the conveying roller 131a and They can also be placed in contact. This means that if a part of the tangible foreign matter adhesion prevention means is in contact with the surface of the downstream conveyance means 131, even if foreign matter adheres to the surface of the downstream conveyance means 131, it will not come into contact with the surface of the downstream conveyance means 131. This is because the foreign matter can be removed using a sponge, scrubbing brush, or the like that constitutes the means for preventing the adhesion of tangible foreign matter. Each member included in the cutting device 10 of this embodiment will be described below. The cutting means 12 is a means for cutting the object to be cut 11 being transported into a desired size and shape, and its configuration is not particularly limited. Although the shape of the cutting line by the cutting means 12 is not particularly limited, for example, the object to be cut 11 can be cut by a cutting line perpendicular to the conveying direction thereof, that is, a cutting line parallel to the Y axis in the figure. The specific configuration of the cutting means 12 is not limited as described above, and can be arbitrarily selected depending on the material of the object to be cut. As the cutting means 12, for example, a rotary cutter, a rotary saw, etc. can be preferably used. In particular, a rotary cutter can be more preferably used as the cutting means. As shown in FIG. 1, the rotary cutter can include a unit 12a in which a blade portion 122 is arranged on the surface of a rotating shaft 121 parallel to the Y-axis, and a unit 12b having the same structure as the unit 12a. . Then, the pair of units 12a and 12b are rotated along the arrows A and B shown in FIG. The object to be cut 11 can be cut by sandwiching the two. However, since the rotary cutter rotates along the arrows A and B in accordance with the conveyance direction of the workpiece 11, conventional cutting devices tend to scatter chips in the direction of the downstream conveyance means 131. Chips were likely to adhere to the downstream conveyance means 131, and furthermore, foreign matter was likely to adhere to the lower surface 11a of the object to be cut 11. On the other hand, according to the cutting device 10 of the present embodiment, even if foreign matter such as chips is generated in the cutting means 12, adhesion of the foreign matter to the downstream conveyance means 131 is suppressed, and the lower surface 11a of the object to be cut 11 is suppressed. It is also possible to suppress the adhesion of foreign matter to. Therefore, when using a rotary cutter that tends to generate foreign matter such as chips, it is possible to exhibit particularly high effects compared to the conventional technology. For this reason, as mentioned above, it is more preferable that the cutting means 12 is a rotary cutter. The downstream conveying means 131 is not particularly limited as long as it can support and convey the plate-shaped object 11 to be cut. For example, one or more selected from belt conveyors, roller conveyors, etc. can be preferably used. For this reason, for example, in FIG. 1, part or all of the downstream conveyance means 131 shown as a roller conveyor consisting of conveyance rollers 131a to 131d may be a belt conveyor. Moreover, the length, that is, the number of conveyance rollers, etc. can be arbitrarily selected as necessary. However, it is preferable that the downstream conveyance means 131 include a conveyance roller 131a at least immediately after the cutting means 12. Further, a reversing conveyance roller control means 15a is further provided, which controls the conveyance roller 131a of the downstream side conveyance means 131, which is provided immediately after the cutting means 12, to rotate in a direction opposite to the conveyance direction of the object to be cut 11. It is preferable to have. In this case, one conveyance roller 131a is provided immediately after the cutting means 12, and the conveyance roller 131a is rotated in the direction opposite to the conveyance direction of the object to be cut 11, that is, in the direction of the arrow b shown by the dotted line in FIG. This is because foreign matter adhering to the surface of the conveyance roller 131a can be removed before the conveyance roller 131a and the object to be cut 11 come into contact with each other. Therefore, it is possible to particularly suppress foreign matter from being transferred from the conveyance roller 131a to the lower surface 11a of the object to be cut 11. Note that, for example, during normal operation, the reversing conveyance roller control means 15a rotates the conveyance roller 131a in the same direction as the conveyance direction of the object to be cut 11, that is, in the direction of arrow a shown by a solid line in FIG. It may be controlled so that it is reversed and rotated in the direction of arrow b shown by a dotted line. In addition, if the foreign matter adhesion prevention means 14 has sufficiently suppressed the adhesion of foreign matter to the conveyance roller 131a, the conveyance roller 131a may also be rotated in the same direction as the conveyance direction of the object to be cut 11. good. Even when the conveyance roller 131a provided immediately after the cutting means 12 is rotated in the opposite direction to the conveyance direction of the object to be cut 11 as described above, the conveyance rollers other than the conveyance roller 131a constituting the downstream conveyance means 131 are rotated. The means, for example, the conveyance rollers 131b to 131d, can be rotated along the conveyance direction of the object to be cut 11, as shown by solid arrows in the figure. Note that in order to control the rotation of these transport rollers 131b to 131d, a downstream transport means control means 15b may be provided. Further, a foreign matter adhesion prevention means 14 can be provided between the cutting means 12 and the downstream conveying means 131. As mentioned above, in conventional cutting devices, chips generated by the cutting means scatter downstream in the conveying direction of the workpiece, and adhere to the downstream conveying means installed downstream of the cutting means. However, the attached chips may be transferred and attached to the lower surface of the object to be cut. Therefore, in the cutting device of this embodiment, by providing the foreign matter adhesion prevention means 14 between the cutting means 12 and the downstream conveying means 131, the chips etc. generated by the cutting means 12 are removed from the downstream conveying means 131. This prevents it from scattering and adhering to 131. Therefore, according to the cutting device 10 of the present embodiment, it is possible to prevent foreign matter such as chips from adhering to the downstream conveyance means 131 and further to the lower surface 11a of the workpiece 11, that is, the surface in contact with the downstream conveyance means 131. It can be suppressed. As described above, the structure of the foreign matter adhesion prevention means 14 is not particularly limited, and is designed to suppress adhesion of foreign matter such as chips generated by the cutting means 12 to the surface of the downstream conveyance means 131. It is good if it is configured. Specifically, for example, the foreign matter adhesion prevention means 14 can include at least one of an intangible foreign matter adhesion prevention means and a tangible foreign matter adhesion prevention means. Examples of the intangible foreign matter adhesion prevention means include an air curtain (air curtain device) that uses gas as the intangible material and has a gas supply means equipped with a gas ejection part that can eject (inject) the gas. For example, if the intangible foreign matter adhesion prevention means is an air curtain that uses gas as the intangible material and has a gas supply means equipped with a gas ejection part that can eject (inject) the gas, the air curtain has a gas supply means that uses gas as the intangible material. The gas ejected from the gas ejection part can form a gas barrier (air curtain flow). Further, the tangible foreign matter adhesion prevention means can include, for example, a plate-like or sheet-like barrier, or one or more types selected from a sponge, a scrubbing brush, and a brush. Here, FIG. 2 shows a configuration example of the gas supply means 24 when the foreign matter adhesion prevention means 14 is an intangible foreign matter adhesion prevention means and is an air curtain having the gas supply means 24. Note that the X-axis, Y-axis, and Z-axis in the figure point in the same direction as in FIG. 1. The gas supply means 24 can have a hollow main body 241, for example, as shown in FIG. For example, the main body portion 241 can have one end 241A closed and the other end 241B connected to a gas supply source (not shown). Note that one end 241A may also be connected to a gas supply source. Further, a gas jetting portion 242 can be formed in the main body portion 241 as shown in FIG. 2 . Although FIG. 2 shows an example in which a plurality of holes are provided as the gas ejection part 242 in one row along the length direction of the main body part 241, that is, along the Y-axis direction in the figure, the present invention is not limited to this form. do not have. For example, a plurality of holes can be arranged in two or more rows. Moreover, it can also be made into one or two or more slit-shaped openings. However, by ejecting gas from the gas ejection part 242 of the gas supply means 24, a gas barrier (air curtain flow) that prevents chips from scattering downstream in the conveyance direction of the object to be cut may be formed. preferable. For this reason, it is preferable that the gas jetting section 242 be configured so that, when installed in the cutting device 10, for example, the gas jetting section 242 can jet the gas toward the lower surface of the object to be cut that is being transported. Furthermore, the gas jetting portion 242 may be arranged along the Y-axis direction, that is, along the width direction of the object 11 to be cut or the cutting means 12 when the gas supply means 24 is installed in the cutting device 10. More preferred. The size of the gas jetting parts 242 is not particularly limited, and can be arbitrarily selected depending on the pressure of the gas supplied from the gas supply source, the hardness of the object to be cut, the number and shape of the gas jetting parts 242, etc. can do. The direction of the gas ejected from the gas ejection part 242 is not particularly limited. For example, as described above, it is preferable that the spray be directed toward the lower surface 11a of the object to be cut 11, and it is also possible to spray it vertically upward, that is, in the Z-axis direction. For example, if a plurality of gas jetting parts 242 are formed along the Y-axis direction and a gas barrier (air curtain flow) is formed as described above by jetting gas in the Z-axis direction, the YZ in FIG. A flow of gas along a plane can be formed. Furthermore, the direction in which the gas is ejected is not limited to the Z-axis direction; for example, the gas may be ejected obliquely upward, which is more inclined toward the X-axis direction than the Z-axis direction. Furthermore, gas can be ejected not only in one direction but also in multiple directions. The type of gas ejected from the gas supply means 24 is not particularly limited, and can be selected depending on the material of the object to be cut 11 to be manufactured, the installation environment of the cutting device 10, etc., but it can be easily obtained. It is preferable to use air because it is highly safe. Therefore, an air pump and / or a compressed air cylinder can be preferably used as the gas supply source connected to the gas supply means 24, and compressed air can be preferably used as the gas to be supplied. The pressure of the gas, such as compressed air, supplied to the gas supply means 24 can be selected depending on the material of the object to be cut, the shape and size of the gas jet part, etc., and is not particularly limited, for example, 0.5 MPa or more. .It is preferably 0 MPa or less. Gas can be ejected continuously from the gas supply means 24, but from the viewpoint of suppressing the amount of gas used and preventing damage to the object 11 to be cut, the gas supply means 24 may eject gas intermittently in accordance with the operation of the cutting means 12. It is preferable to blow out the gas. Therefore, in the cutting device 10 of the present embodiment, the foreign matter adhesion prevention means 14 is an intangible foreign matter adhesion prevention means, and is an air curtain ( In the case of an air curtain device), it is preferable to further include gas ejection operation control means for controlling the gas ejection part 242 of the gas supply means 24 to intermittently eject gas. That is, in FIG. 1, a gas ejection operation control means can be provided as the foreign matter adhesion prevention means control means 15c that controls the foreign matter adhesion prevention means 14. Since it is preferable that the gas ejection operation control means controls the ejection of gas in accordance with the operation of the cutting means 12, it may further include a cutting means control means 15d for controlling the operation of the cutting means 12. In this case, a signal line (not shown) for exchanging information regarding the operation of the cutting means 12 may be provided between the gas ejection operation control means and the cutting means control means 15d. Here, an example has been described in which the cutting means control means 15d is provided together with the gas ejection operation control means which is the foreign matter adhesion prevention means control means 15c. However, the cutting means control means 15d is the gas ejection operation control means. Even when not provided, it may be provided only for the purpose of controlling the operation of the cutting means 12. In addition, when the foreign matter adhesion prevention means 14 is an intangible foreign matter adhesion prevention means and is not an air curtain having a gas supply means 24, for example, when the foreign matter adhesion prevention means 14 is a tangible foreign matter adhesion prevention means, the foreign matter adhesion prevention means The control means 15c can also be configured to control the position of the foreign matter adhesion prevention means 14. When the gas ejection operation control means is provided, for example, a valve is provided between the gas supply means 24 and the gas supply source, and the gas ejection operation control means controls the gas supply means by controlling opening and closing of the valve. The timing of gas ejection from the 24 gas ejection portions 242 can be controlled. The timing at which the gas is ejected from the gas ejection part 242 of the gas supply means 24 is not particularly limited; It is preferable to blow out the gas. The specific period during which the gas is ejected can be arbitrarily selected depending on the degree of chips etc. scattered from the cutting means 12, timing, etc. The cutting device of this embodiment can include any other members as necessary in addition to the members described above. For example, it is possible to include an upstream conveying means 132 for conveying the object to be cut 11 to the cutting means 12. As the upstream conveying means 132, a roller conveyor composed of a plurality of conveying rollers 132a to 132d is shown as an example in FIG. It may be any value, and is not particularly limited. For example, one or more selected from belt conveyors, roller conveyors, etc. can be preferably used. Further, the length, that is, the number of conveyance rollers, etc., can be arbitrarily selected as necessary. Furthermore, an upstream conveyance means control means 15e that controls the operation of the upstream conveyance means 132 may be provided. The upstream conveyance means control means 15e can control the operation of the upstream conveyance means 132 in accordance with the operations of the cutting means 12 and the downstream conveyance means 131, for example. Additionally, a length measuring means (not shown) may be provided upstream of the cutting means 12 in the direction of conveyance of the object to be cut, for measuring the length of the object being cut by the upstream conveying means 132. The length measuring means is not particularly limited as long as it is a means capable of measuring the length of the object to be cut, and may be either a contact type or a non-contact type. The length measuring means may, for example, measure the length (distance) of the object to be cut that has been conveyed after the cutting means 12 is activated, and may notify the cutting means control means 15d of the measured length. can. Then, for example, when the notified length reaches a preset cutting length, the cutting means control means 15d operates the cutting means 12 to cut the object to a desired length. be able to. The control means for controlling each means up to this point include a reversing conveyance roller control means 15a, a downstream conveyance means control means 15b, a foreign matter adhesion prevention means control means 15c, a cutting means control means 15d, and an upstream conveyance means. Although the explanation has been given with reference to the means controlling means 15e, these may be arranged individually, but the present invention is not limited to this form. For example, it is also possible to provide a cutting device control means 15 and to control each means. Furthermore, an upper surface side air supply means (not shown) is provided to remove foreign matter adhering to the upper surface of the object to be cut 11 being conveyed, and an air supply means (not shown) is provided on the surface of the rotating conveyance roller 131a to remove foreign matter adhered to the conveyance roller 131a. A scraper or the like may also be provided for contact. The object to be cut 11 to be cut by the cutting device 10 of this embodiment is not particularly limited, and various objects to be cut may be used as long as the object has a plate shape. Therefore, the cutting device 10 of this embodiment can be used as the object 11 to be cut, regardless of whether it is a final product or a semi-finished product that is still being manufactured or processed. However, in particular, semi-finished products are often cut into arbitrary sizes while being transported, and foreign matter is likely to adhere to the surface of the semi-finished products. , shows particularly high effectiveness. For this reason, it is preferable that the object to be cut 11 is a semi-finished product. In addition, when the object to be cut 11 is a semi-finished product, the semi-finished product may include one or more molded products selected from ceramics, resins, etc. that have not been subjected to at least one of drying and firing, such as green sheets. It will be done. In addition, final products of one or more molded products selected from ceramics, resins, etc. mentioned above as semi-finished products include building materials such as gypsum-based building materials, members for electronic parts, structural materials, etc. Examples of gypsum-based building materials include gypsum board, glass mat gypsum board, and gypsum board containing glass fiber nonwoven fabric. Such a final product can also be used as the object to be cut 11, as described above. The thickness of the object to be cut 11 is not particularly limited, and can be arbitrarily selected depending on the cutting ability of the cutting means 12 and the like. According to the cutting device of the present embodiment described above, the foreign matter adhesion prevention means is provided between the cutting means and the downstream conveying means to prevent foreign matter scattered from the cutting means from adhering to the downstream conveying means. have. This prevents chips and the like generated by the cutting means 12 from scattering and adhering to the downstream transport means 131, and further prevents chips and the like from being deposited on the lower surface of the object to be cut 11, that is, the surface in contact with the transport means. Adhesion of foreign matter can be suppressed. [Manufacturing equipment for sheet members, manufacturing equipment for gypsum-based building materials] Next, a configuration example of the sheet member manufacturing apparatus and the gypsum-based building material manufacturing apparatus of the present embodiment will be described. The sheet member manufacturing apparatus of this embodiment can be configured to include the cutting device described above. Furthermore, as the sheet member, for example, a gypsum-based building material can be manufactured, and in this case, the sheet member manufacturing apparatus can also be a gypsum-based building material manufacturing apparatus. Therefore, the apparatus for manufacturing gypsum-based building materials according to the present embodiment can also be configured to include the cutting device described above. The sheet member manufacturing apparatus and the gypsum building material manufacturing apparatus of this embodiment can include various means necessary for manufacturing the sheet member in addition to the cutting device described above. For example, when it is necessary to mix raw materials, the sheet member manufacturing apparatus and the gypsum-based building material manufacturing apparatus of this embodiment can include a mixing means (mixer) for mixing the raw materials. In addition, the sheet member manufacturing apparatus and the gypsum-based building material manufacturing apparatus of the present embodiment include a molding apparatus that molds and processes raw materials, raw material mixtures prepared by the above-mentioned mixing means, raw material slurry, etc. into desired shapes and sizes. can have. Below, as an example of the configuration of the sheet member manufacturing apparatus and the gypsum-based building material manufacturing apparatus of this embodiment, the configuration of the apparatus will be described using a case where sheet members and gypsum board, which is a gypsum-based building material, are manufactured as an example. . The gypsum building material manufacturing apparatus 30 shown in FIG. 3 includes a mixer 31 that is a mixing means for mixing raw materials, a raw material slurry prepared by the mixer 31, and a molding device 32 that molds the gypsum slurry in the example shown in FIG. and a cutting device 10. An example of the configuration of the device will be specifically explained below. First, the mixer 31 will be explained. The mixer 31 can be placed at a predetermined position related to a conveyance line for surface cover base paper, etc., which will be described later, for example, above or beside the conveyance line. Then, in the single mixer 31, calcined gypsum, which is a raw material for the gypsum slurry, water, and in some cases, various additives can be kneaded to prepare a gypsum slurry. Here, calcined gypsum is also called calcium sulfate 1 / 2 hydrate, and is an inorganic composition that has hydraulic properties. As calcined gypsum, there is β type, which is obtained by firing natural gypsum, by-product gypsum, flue gas desulfurization gypsum, etc. alone or in combination, in the atmosphere, or α type, which is obtained by firing in water (including steam). Either one of the molded plasters or a mixture of both can be used. When manufacturing gypsum-based building materials such as gypsum board, the calcined gypsum used as a raw material preferably contains β-type calcined gypsum, and the main component of the calcined gypsum used as the raw material for the hardened gypsum is β-type calcined gypsum. More preferred. Note that the main component of calcined gypsum used as a raw material for hardened gypsum is β-type calcined gypsum, which means that β-type calcined gypsum accounts for more than 50% by mass of the calcined gypsum used as a raw material for hardened gypsum. It means. In the hardened gypsum body of this embodiment, the calcined gypsum used as a raw material may be composed only of β-type calcined gypsum. For α-type calcined gypsum, dihydrate gypsum such as natural gypsum must be pressure-calcined in water or steam using an autoclave. On the other hand, β-type calcined gypsum can be manufactured by calcining dihydrate gypsum such as natural gypsum in the atmosphere under normal pressure, and β-type calcined gypsum can be manufactured with higher productivity than α-type calcined gypsum. Examples of additives include adhesion improvers such as starch and polyvinyl alcohol that improve the adhesion between hardened gypsum and gypsum board base paper (hereinafter referred to as "front or back cover base paper"), and inorganic fibers such as glass fiber. and lightweight aggregates, refractory materials such as vermiculite, setting retarders, setting accelerators, water reducing agents, bubble size control agents such as sulfosuccinate type surfactants, water repellents such as silicone and paraffin, organic carboxylic acids and / or or one or more selected from organic carboxylates and the like. Note that the calcined gypsum and some additives, for example, solid additives, can be mixed and stirred in advance to form a gypsum composition as a mixture, and then supplied to the mixer 31. Furthermore, by adding foam at one or more selected locations among the gypsum slurry collection ports 311a, 311b, and 311c and adjusting the amount of foam added, the gypsum slurry can have an arbitrary density. For example, high-density gypsum slurry 35 can be prepared by not adding foam or by adding a small amount of foam through the sampling ports 311a and 311b. Further, it is also possible to prepare a low-density gypsum slurry 36 by adding more foam than the high-density gypsum slurry through the sampling port 311c. In this manner, the mixer 31 of the gypsum-based building material manufacturing device 30 can perform a gypsum slurry manufacturing process in which gypsum slurry is manufactured by kneading calcined gypsum as a raw material, water, various additives, and foam. Note that the various additives and foam are optional additive components, and may not be added in the gypsum slurry manufacturing process. Delivery pipes 312a, 312b and a conduit 312c for supplying the prepared gypsum slurry to the molding device 32 can be installed in the sampling ports 311a, 311b, 311c. Although FIG. 3 shows an example in which a low-density gypsum slurry and a high-density gypsum slurry are manufactured using one mixer 31, two mixers are provided, and each mixer produces a high-density gypsum slurry and a low-density gypsum slurry. A gypsum slurry may be manufactured. Next, a configuration example of the molding device 32 will be described. The molding device can include, for example, roll coaters 321a and 321b that spread the gypsum slurry onto the front cover base paper 33 and the back cover base paper 34, a molding machine 323, and the like. In FIG. 3, the surface cover base paper 33, which is the surface material, is conveyed along the production line from the right side to the left side. The high-density gypsum slurry 35 obtained by the mixer 31 is supplied onto the front cover base paper 33 and the back cover base paper 34 on the upstream side in the conveyance direction of the roll coaters 321a and 321b through delivery pipes 312a and 312b. The high-density gypsum slurry 35 supplied onto the front cover base paper 33 and the back cover base paper 34 reaches the spreading portions of the roll coaters 321a and 321b, respectively, and is spread there. Note that the roll coaters 321a and 321b can have coating rolls 3211a and 3211b, receiving rolls 3212a and 3212b, and lees removing rolls 3213a and 3213b. Then, when the cover base paper passes between the application rolls 3211a, 3211b and the receiving rolls 3212a, 3212b, the gypsum slurry 35 can be spread on the front cover base paper 33 and the back cover base paper 34. In this way, both a thin layer of gypsum slurry 35 and an edge area are formed on the surface covering base paper 33. Similarly, a thin layer of gypsum slurry 35 is formed on back cover base paper 34. Although FIG. 3 shows an example in which the gypsum slurry 35 is applied to the front cover base paper 33 and the back cover base paper 34 using the roll coaters 321a and 321b, the present invention is not limited to this form. For example, the gypsum slurry 35 may be applied only to either the front cover base paper 33 or the back cover base paper 34 using the roll coaters 321a and 321b. Further, the gypsum slurry 35 can also be placed only on the side edges of the surface cover base paper 33. The front cover base paper 33 is transported as it is, and the back cover base paper 34 is turned by the turning roller 322 in the direction of the transport line of the front cover base paper 33. Then, both the front cover base paper 33 and the back cover base paper 34 reach the molding machine 323. Here, a low-density gypsum slurry 36 is supplied from the mixer 31 through the conduit 312c between the thin layers formed on the front cover base paper 33 and the back cover base paper 34. Therefore, between the front cover base paper 33 and the back cover base paper 34, there is a layer formed of high-density gypsum slurry 35, a layer formed of low-density gypsum slurry 36, and a layer formed of high-density gypsum slurry 35. A continuous laminate can be formed by stacking the layers formed by the above steps. Note that this is not limited to the form in which a high-density gypsum slurry and a low-density gypsum slurry are used; for example, a form in which a gypsum slurry of one type of density is manufactured and this is supplied onto a base paper for gypsum board. It may be. Specifically, for example, a gypsum slurry having a predetermined density is supplied and deposited on top of the surface cover base paper that is continuously conveyed. Then, the bottom paper is folded along the score lines made on both edges thereof so as to involve the gypsum slurry. At this time, the back cover base paper, which is transported at the same speed, is layered on top of the gypsum slurry layer. It is then passed through a molding machine that determines the thickness and width of the gypsum board. Gypsum board can also be formed using the above procedure. In this case, a layer of a type of gypsum slurry is formed between the front cover base paper and the back cover base paper. In this way, the molding device 32 of the gypsum-based building material manufacturing device 30 can perform a molding process of molding gypsum slurry. The cutting device 10 described above can be provided downstream of the forming device 32. The cutting device 10 can cut the molded body formed by the molding device into any size. Incidentally, calcined gypsum (gypsum hemihydrate) undergoes a hydration reaction to produce needle-like crystals of dihydrate, condenses, solidifies, and hardens. For this reason, after the molded body is produced in the molding device 32 and before it is cut by the cutting device 10, the hydration reaction of the calcined gypsum proceeds so that the molded body has a hardness suitable for cutting by the cutting device 10. It is preferable to select the distance (conveyance distance) between the forming device 32 and the cutting device 10. In this way, between the molding device 32 and the cutting device 10 of the gypsum-based building material manufacturing device 30 shown in FIG. A cutting process can be performed to cut the cured body into any size. The configuration of the cutting device 10 has already been explained, so the explanation will be omitted here. In addition, although the case where gypsum board is manufactured as a sheet member and a gypsum-based building material was explained here as an example, it is not limited to this form. For example, by changing the base paper for gypsum board, which is the surface material, to glass fiber nonwoven fabric (glass tissue), glass mat, etc., and burying it on or near the surface, various types of gypsum Building materials such as glass mat gypsum board, glass fiber non-woven gypsum board, etc. can also be produced. In addition, various sheet members other than gypsum-based building materials, such as members for electronic components, other ceramic products such as various structural materials, resin products, etc. can also be manufactured. When manufacturing other ceramic products (slag gypsum board, cement board, etc.) or resin products, etc., instead of the above-mentioned gypsum-based building materials as sheet members, the mixing means and molding equipment are not limited to the above-mentioned configuration. It is possible to use a mixing means and a molding device with a suitable configuration depending on the raw materials and the product to be manufactured. Furthermore, the sheet member manufacturing apparatus and the gypsum-based building material manufacturing apparatus of this embodiment are not limited to the above-mentioned mixing means, such as a mixer, a molding device, and a cutting means, but may include various devices and devices as necessary. can have means. For example, a drying means for drying a molded body, a firing means for firing, a (second) cutting device for further cutting the object cut by the above-mentioned (first) cutting device 10 according to the dimensions of the product, etc. etc. can also be included. According to the sheet member manufacturing apparatus and the gypsum-based building material manufacturing apparatus of the present embodiment described above, the above-mentioned cutting device is provided. Therefore, a foreign matter adhesion prevention means is provided between the cutting means and the downstream conveyance means. This prevents chips and the like generated by the cutting means 12 from scattering and adhering to the downstream transport means 131, and further prevents chips and the like from being deposited on the lower surface of the object to be cut 11, that is, the surface in contact with the transport means. Adhesion of foreign matter can be suppressed. Although the cutting device, the sheet member manufacturing device, and the gypsum building material manufacturing device have been described above in the embodiments, the present invention is not limited to the above embodiments. Various modifications and changes are possible within the scope of the gist of the present invention as described in the claims. This application claims priority based on Japanese Patent Application No. 2016-179922 filed with the Japan Patent Office on September 14, 2016, and the entire contents of Japanese Patent Application No. 2016-179922 are included in this international application. I will use it. 11 Object to be cut 12 Cutting means 131 Downstream conveyance means 131a Conveyance roller 14 Foreign matter adhesion prevention means 24 Gas supply means 242 Gas jetting part 15a Reversing conveyance roller control means

Claims

Page 1 of 2 pages of Claims 1. A cutting device consisting of a cutting path installed on the delivery path of the object to be cut, which is of the form of a flat plate, and which cuts the object to be cut and the delivery path at the end of the flow, which is installed at the end of the flow of the said delivery path, and a contaminant prevention path installed between the cutting path and the delivery path at the end of the flow, and which prevents contaminants emitted from the cutting path from adhering to the delivery path at the end of the flow.

2. The cutting device specified in Claim 1 at the delivery path at the end of the flow has at least one delivery ball at the end of the cutting path. 3.

4. Any of the cutting devices specified in Reputation 1 through 3 in the anti-contact pathway is an irregular anti-contact pathway that prevents contacts emitted from the cutting device from the downstream end of the flow path.

5. Any of the cutting devices specified in Reputation 5 in the anti-contact pathway is an irregular anti-contact pathway that prevents contacts emitted from the cutting device from the downstream end of the flow path.

6. Any of the cutting devices specified in Reputation 5 in the anti-contact pathway is an irregular anti-contact pathway that emits gas. 7.

8. Cutting devices specified in Reputation 5 or 6, which include a controlled gas discharge procedure that controls the discontinuous gas discharge from such discharge section.

9. Any cutting device specified in Reputation 1 to 3, where the anti-contact procedure is a two-faced anti-contact procedure with a shape that prevents contacts dispersed from such cutting procedure from adhering to the downstream flow path by such shape.

10. Cutting devices specified in Reputation 8, where the anti-contact procedure with such shape is one or more types of flat or sheet-like or brush-like barriers.

11. Any cutting device specified in Reputation 1 to 9, where the cutting procedure is a rotary cutter.

12. Any cutting device specified in Reputation 1 to 10, where the object to be cut is a semi-finished product.

13. Sheet metal fabrication equipment with a cutting device specified in Reputation 1 to 11.Manufacturing equipment for gypsum construction materials with cutting tools as specified in any of the claims 1 through 11;