Gypsum board edge warping prevention device and gypsum board forming equipment

Abstract

The invention discloses a gypsum board edge warping prevention device and gypsum board forming equipment. The gypsum board edge warping prevention device comprises a water spraying mechanism and a rolling mechanism. The water spraying mechanism comprises two nozzles used for spraying water, and the two nozzles are arranged above the conveying belt and located on the two sides of the conveying belt correspondingly so as to spray water to wet the covering paper lap joint portions on the two sides of the gypsum board conveyed by the conveying belt. The rolling mechanism comprises two rolling wheels, and the two rolling wheels are located above the conveying belt and on the downstream portion of the nozzle respectively so that the rolling wheels can conduct rolling after the lap joint portion of the surface protection paper is wetted. According to the scheme provided by the invention, the problem that the edge warping phenomenon is easily generated at the lap joint of the upper and lower surface protection paper of the gypsum board in the prior art can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of gypsum board production, and in particular to a gypsum board anti-warping device and a gypsum board forming equipment. Background Art

[0002] Gypsum board is made by mixing building gypsum with water, adding auxiliary agents, reinforcing agents, and adhesives, mixing them in a mixing machine, pouring them between two layers of facing paper, and then extruding them into a gypsum board.

[0003] In the production process of gypsum board, the two sides of the lower face paper are firstly indented or scored by tools, and after the slurry is poured on the lower face paper, the upper face paper is pulled down from above, and the two sides of the lower face paper are folded along the scores by tools, and glue is applied on the back of the fold, and the upper face paper overlaps the folded part of the lower face paper. After extrusion molding, the glue bonds the overlapped parts of the upper and lower face papers together.

[0004] However, in the actual production process, the upper and lower facing papers are prone to warping at the joints due to water absorption and expansion during the running process and the solidification of the gypsum core, which affects the stability of the edge quality of the gypsum board. Summary of the invention

[0005] The embodiments of the present application provide a gypsum board anti-warping device and a gypsum board forming device to solve the problem in the prior art that the upper and lower facing papers of the gypsum board are prone to warping at the overlap.

[0006] The embodiment of the present application provides a gypsum board anti-warping device, comprising: A water spraying mechanism, comprising two nozzles for spraying water, wherein the two nozzles are respectively arranged above the conveyor belt and located at positions on both sides of the conveyor belt, so as to spray water to moisten the overlapping parts of the face paper on both sides of the gypsum board conveyed by the conveyor belt; The rolling mechanism comprises two rollers, which are respectively located above the conveyor belt and downstream of the nozzle, so that the overlapping parts of the face paper are rolled by the rollers after being moistened.

[0007] In one embodiment, the nozzle is a needle valve atomizing nozzle.

[0008] In one embodiment, the rolling mechanism further includes a lifting component for driving the roller to rise and fall.

[0009] In one embodiment, the lifting component is a cylinder, and the driving end of the cylinder is connected to the roller.

[0010] In one embodiment, an elastic component is provided between the lifting component and the roller, and the roller is elastically pressed against the gypsum board by the elastic component.

[0011] In one embodiment, the roller is a rubber wheel.

[0012] In one embodiment, the outer ring of the roller is wrapped with sponge.

[0013] The embodiment of the present application further provides a gypsum board forming device, comprising a conveying device, an extrusion forming device and the gypsum board anti-warping device as described above; The conveying device comprises a conveyor belt, and the conveyor belt is configured to convey the gypsum board to be formed to the extrusion forming device; The nozzle of the gypsum board anti-warping device is configured to spray water to moisten the overlapping parts of the facing papers on both sides of the gypsum board conveyed by the conveyor belt, and the roller is configured to roll the moistened overlapping parts of the facing papers.

[0014] In the production process of gypsum board, after the slurry is poured on the lower face paper and the upper face paper is pressed on the flange of the lower face paper, the nozzle sprays water on the overlapping edge of the upper and lower face papers to moisten them, and then the wetted edge overlap is rolled by a roller, so that the overlapping parts of the upper and lower face papers are attached together, which can not only prevent the gypsum board from being flanged, but also improve the flatness of the edge of the gypsum board. Therefore, the gypsum board anti-warping device provided in the embodiment of the present application effectively solves the problem of warping easily occurring at the overlap of the upper and lower face papers in the production process of gypsum boards in the prior art, and effectively improves the production quality of gypsum boards.

[0015] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by implementing the present application. Other advantages of the present application can be realized and obtained by the schemes described in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide an understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0017] Figure 1 It is a schematic structural diagram of a gypsum board anti-warping device according to an embodiment of the present application. DETAILED DESCRIPTION

[0018] The present application describes multiple embodiments, but the description is exemplary rather than restrictive, and it is obvious to those skilled in the art that there may be more embodiments and implementations within the scope of the embodiments described in the present application. Although many possible feature combinations are shown in the drawings and discussed in the specific embodiments, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with any other feature or element in any other embodiment, or may replace any other feature or element in any other embodiment.

[0019] The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed in the present application may also be combined with any conventional features or elements to form a unique invention scheme. Any features or elements of any embodiment may also be combined with features or elements from other invention schemes to form another unique invention scheme. Therefore, it should be understood that any feature shown and / or discussed in the present application may be implemented individually or in any appropriate combination. Therefore, except for the limitations made according to the attached claims and their equivalents, the embodiments are not subject to other restrictions. In addition, various modifications and changes may be made within the scope of protection of the attached claims.

[0020] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, to the extent that the method or process does not rely on the specific order of the steps described herein, the method or process should not be limited to the steps of the specific order described. As will be understood by those of ordinary skill in the art, other sequences of steps are also possible. Therefore, the specific sequence of the steps set forth in the specification should not be interpreted as a limitation to the claims. In addition, the claims for the method and / or process should not be limited to the steps of performing them in the order written, and those skilled in the art can easily understand that these sequences can be changed and still remain within the spirit and scope of the embodiments of the present application.

[0021] The embodiment of the present application provides a gypsum board anti-warping device, such as Figure 1 As shown, it includes: a water spraying mechanism 1 and a rolling mechanism 2. The water spraying mechanism 1 includes two nozzles 11 for spraying water, and the two nozzles 11 are respectively arranged above the conveyor belt 3 and located at the positions on both sides of the conveyor belt 3, so as to spray water and moisten the overlapping parts of the face paper on both sides of the gypsum board conveyed by the conveyor belt 3; the rolling mechanism 2 includes two rollers 21, and the two rollers 21 are respectively located above the conveyor belt 3 and downstream of the nozzles 11, so that the overlapping parts of the face paper are wetted by the nozzles 11 and then rolled by the rollers 21.

[0022] During the production process of gypsum board, after the slurry is poured on the lower facing paper and the upper facing paper is pressed on the flange of the lower facing paper, the nozzle 11 is used to spray water on the overlapping edges of the upper and lower facing papers to moisten them, and then the moistened overlapping parts of the edges are rolled by the roller 21 to make the overlapping parts of the upper and lower facing papers fit together, which can not only avoid the gypsum board from flanging, but also improve the flatness of the edges of the gypsum board.

[0023] Therefore, the gypsum board anti-warping device provided in the embodiment of the present application effectively solves the problem of warping easily occurring at the overlap of the upper and lower facing papers during the gypsum board production process in the prior art, thereby effectively improving the production quality of the gypsum board.

[0024] In one embodiment, the nozzle 11 can be a needle valve atomizing nozzle. The needle valve atomizing nozzle has a water inlet and an air inlet. The air inlet uses compressed air. The water entering from the water inlet is atomized by the compressed air and sprayed onto the gypsum board. The needle valve atomizing nozzle is used to spray the overlapped parts on both sides of the gypsum board, so that the wetting is relatively uniform. The specific structure of the needle valve atomizing nozzle is known to those skilled in the art and will not be described in detail here.

[0025] In one embodiment, the rolling mechanism 2 further includes a lifting component for driving the roller 21 to rise and fall, and the gypsum board is rolled by adjusting the height of the roller 21 through the lifting component 21. The lifting component can be a cylinder 22, and the driving end of the cylinder 22 is connected to the roller 22. Of course, the lifting component can also be other, such as a screw mechanism.

[0026] In addition, an elastic component 23 may be provided between the lifting component and the roller 22 , and the roller 21 is elastically pressed against the gypsum board by the elastic component 23 .

[0027] like Figure 1 In the embodiment, a cylinder 22 is provided corresponding to the roller 21 on each side, and an elastic component 23 is provided between the driving end of the cylinder 22 and the roller 21, and the elastic component can be a spring.

[0028] In one example, in order to enable the roller 21 to roll the gypsum board flexibly, the roller 21 can be a rubber wheel. In addition, the outer ring of the roller 21 can also be wrapped with a sponge.

[0029] The embodiment of the present application further provides a gypsum board forming device, comprising a conveying device, an extrusion forming device and the gypsum board anti-warping device as described above; The conveying device includes a conveyor belt 3, which is configured to convey the gypsum board to be formed to the extrusion forming device; the nozzle 11 of the gypsum board anti-warping device is configured to spray water to moisten the overlapping parts of the facing papers on both sides of the gypsum board conveyed by the conveyor belt 3, and the roller 21 is configured to roll the moistened overlapping parts of the facing papers.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include at least one of the features.

[0032] In the description of the present application, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0033] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0036] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A gypsum board anti-warping device, characterized in that: include: A water spraying mechanism, comprising two nozzles for spraying water, wherein the two nozzles are respectively arranged above the conveyor belt and located at positions on both sides of the conveyor belt, so as to spray water to moisten the overlapping parts of the face paper on both sides of the gypsum board conveyed by the conveyor belt; The rolling mechanism comprises two rollers, which are respectively located above the conveyor belt and downstream of the nozzle, so that the overlapping parts of the face paper are rolled by the rollers after being moistened.

2. The gypsum board anti-warping device according to claim 1, characterized in that: The nozzle is a needle valve atomizing nozzle.

3. The gypsum board anti-warping device according to claim 1, characterized in that: The rolling mechanism also includes a lifting component for driving the roller to rise and fall.

4. The gypsum board anti-warping device according to claim 3, characterized in that: The lifting component is a cylinder, and the driving end of the cylinder is connected to the roller.

5. The gypsum board anti-warping device according to claim 3, characterized in that: An elastic component is arranged between the lifting component and the roller, and the roller is elastically pressed against the gypsum board by the elastic component.

6. The gypsum board anti-warping device according to any one of claims 1 to 5, characterized in that: The roller is a rubber wheel.

7. The gypsum board anti-warping device according to any one of claims 1 to 5, characterized in that: The outer ring of the roller is wrapped with sponge.

8. A gypsum board forming device, characterized in that: It comprises a conveying device, an extrusion molding device and a gypsum board anti-warping device according to any one of claims 1 to 7; The conveying device comprises a conveyor belt, and the conveyor belt is configured to convey the gypsum board to be formed to the extrusion forming device; The nozzle of the gypsum board anti-warping device is configured to spray water to moisten the overlapping parts of the facing papers on both sides of the gypsum board conveyed by the conveyor belt, and the roller is configured to roll the moistened overlapping parts of the facing papers.

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