Gypsum board production line

Abstract

The invention provides a gypsum board production line. The gypsum board production line comprises a conveying device; and the slurry smearing device comprises a flattening roller, and the flattening roller is rotatably arranged above the conveying surface of the conveying device and is arranged to flatten the slurry on the lower surface protection paper and defoam bubbles in the slurry on the lower surface protection paper. According to the gypsum board production line, when the gypsum board production line is used for manufacturing a gypsum board base board, the lower surface protection paper is located on the conveying face of the conveying device, slurry is located on the lower surface protection paper, the flattening roller is located above the slurry, and when the lower surface protection paper and the slurry pass through the space between the flattening roller and the conveying face of the conveying device, the lower surface protection paper and the slurry are flattened. And the flattening roller can crush large bubbles in the slurry on the lower surface protection paper to defoam the slurry, so that the situation that large bubble holes are formed in a base plate of a manufactured gypsum board can be avoided, and the percent of pass of the manufactured gypsum board can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gypsum board equipment, and more specifically, to a gypsum board production line. Background Art

[0002] Gypsum board is a kind of board made of desulfurized gypsum as the main raw material. It has the advantages of light weight, high strength, easy processing, good sound insulation and heat insulation effects, and good fire resistance. It is widely used as various decorative boards such as partition walls, ceilings, sound-absorbing panels, etc. in various buildings.

[0003] The gypsum board production line for producing gypsum board includes a conveying device, a mixer and a forming table. The mixer and the forming table are both arranged on the conveying device, and the mixer is located upstream of the forming table. The conveying surface of the conveying device is provided with a lower face paper, and the forming table is provided with an upper face paper. The slurry supplied from the discharge port of the mixer falls on the lower face paper, and the upper face paper is located above the slurry on the lower face paper. The conveying device drives the lower face paper, the slurry and the upper face paper to move downstream together. The lower face paper, the slurry and the upper face paper are made into a gypsum board substrate after passing through the forming table. The gypsum board substrate is made into a gypsum board after subsequent drying, cutting and other processes.

[0004] However, there are large bubbles in the slurry supplied from the discharge port. On the manufactured gypsum board substrate, the large bubbles may burst to form large bubble holes, causing a portion of the manufactured gypsum board to be unqualified due to the large bubble holes. Summary of the invention

[0005] An embodiment of the present invention provides a gypsum board production line, comprising: a conveying device; and a slurry applying device, the slurry applying device comprising a flattening roller, the flattening roller is rotatably disposed above the conveying surface of the conveying device, and is configured to flatten the slurry on the lower face paper and defoam bubbles in the slurry on the lower face paper.

[0006] In some exemplary embodiments, the slurry coating device also includes a cleaning roller, which is located above the conveying surface of the conveying device and spaced apart from the conveying surface of the conveying device, and the outer peripheral surface of the flattening roller abuts against the outer peripheral surface of the cleaning roller, and the cleaning roller is configured to clean the outer peripheral surface of the flattening roller.

[0007] In some exemplary embodiments, the slurry smearing device also includes: a driving device; and a first frame, one end of which is hingedly connected to the bracket of the conveying device through a first hinge shaft, and the other end is transmission connected to the driving device, the flattening roller and the cleaning roller can be rotatably mounted on the first frame, and the driving device is configured to drive the first frame to rotate around the first hinge shaft so that the flattening roller is close to or away from the conveying surface of the conveying device.

[0008] In some exemplary embodiments, the driving device is a telescopic cylinder, one end of the telescopic cylinder is hingedly connected to the other end of the first frame through a second hinge shaft, and the other end of the telescopic cylinder is hingedly connected to the bracket.

[0009] In some exemplary embodiments, the gypsum board production line also includes: a second frame fixed to the bracket, one end of the first frame is hingedly connected to one end of the second frame through the first hinge axis, and the other end of the telescopic cylinder is hingedly connected to the other end of the second frame.

[0010] In some exemplary embodiments, the second frame and the telescopic cylinder are both located below the first frame.

[0011] In some exemplary embodiments, the telescoping cylinder is located upstream of the second frame.

[0012] In some exemplary embodiments, the first articulation axis and the second articulation axis are both located below a conveying surface of the conveying device.

[0013] In some exemplary embodiments, the diameter of the flattening roller is greater than the diameter of the cleaning roller, and the distance between the flattening roller and the conveying surface of the conveying device is smaller than the distance between the cleaning roller and the conveying surface of the conveying device.

[0014] In some exemplary embodiments, the gypsum board production line further comprises: a mixer located upstream of the slurry applying device and configured to supply slurry.

[0015] In some exemplary embodiments, the gypsum board production line further includes a forming station located downstream of the slurry applying device and configured to form a gypsum board substrate.

[0016] In the gypsum board production line of the embodiment of the present invention, when the gypsum board production line is producing a gypsum board substrate, the lower facing paper is located on the conveying surface of the conveying device, the slurry is located on the lower facing paper, and the flattening roller is located above the slurry. When the lower facing paper and the slurry pass between the flattening roller and the conveying surface of the conveying device, the flattening roller will squeeze out the large bubbles in the slurry on the lower facing paper to defoam the slurry, thereby avoiding large bubble holes on the manufactured gypsum board substrate and effectively improving the qualified rate of the manufactured gypsum boards.

[0017] Furthermore, the flattening roller will flatten the slurry on the lower face paper, so that the slurry is evenly applied to the lower face paper. This not only ensures that the slurry can be formed homogeneously and stably during subsequent molding and extrusion, but also ensures that the surface density of the manufactured gypsum board substrate is more uniform.

[0018] Among them, the flattening roller is rotatably arranged above the conveying surface of the conveying device. When the lower face paper and the slurry pass between the flattening roller and the conveying surface of the conveying device, the lower face paper and the slurry will drive the flattening roller to rotate, and the rolling flattening roller squeezes the large bubbles in the slurry on the lower face paper to defoam the slurry, and the rolling flattening roller flattens the slurry on the lower face paper.

[0019] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention 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 invention and do not constitute a limitation on the technical solution of the present invention.

[0021] Figure 1 A schematic diagram of the structure of a gypsum board production line provided by some embodiments of the present invention; Figure 2 for Figure 1 Schematic diagram of the local structure of the middle mixer; Figure 3 for Figure 1 A schematic diagram of the local structure of the middle slurry coating device; Figure 4 for Figure 1 Schematic diagram of the local structure at the middle forming table.

[0022] The corresponding relationship between the reference numerals and the component names is as follows: 100 conveying device, 110 support, 200 slurry spreading device, 210 flattening roller, 220 cleaning roller, 230 driving device, 240 first frame, 250 second frame, 260 second articulated shaft, 270 first articulated shaft, 300 lower protective paper, 400 upper protective paper, 500 mixer, 600 forming table, 610 forming plate. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily without conflict.

[0024] The gypsum board production line provided by the embodiment of the present invention is as follows: Figure 1 and Figure 3As shown, it includes: a conveying device 100; and a slurry coating device 200, the slurry coating device 200 includes a flattening roller 210, the flattening roller 210 is rotatably arranged above the conveying surface of the conveying device 100, and is configured to flatten the slurry on the lower protective paper 300 and defoam the bubbles in the slurry on the lower protective paper 300.

[0025] In the gypsum board production line, when the gypsum board production line is producing the gypsum board substrate, the lower face paper 300 is located on the conveying surface of the conveying device 100, the slurry is located on the lower face paper 300, and the flattening roller 210 is located above the slurry. When the lower face paper 300 and the slurry pass between the flattening roller 210 and the conveying surface of the conveying device 100, the flattening roller 210 will squeeze the large bubbles in the slurry on the lower face paper 300 to defoam the slurry, so as to avoid the large bubble holes on the manufactured gypsum board substrate, and effectively improve the qualified rate of the manufactured gypsum board. In addition, the flattening roller 210 will also flatten the slurry on the lower face paper 300, so that the slurry is evenly applied on the lower face paper 300, which can not only ensure that the slurry can be homogeneously and stably formed during the subsequent molding and extrusion, but also ensure that the surface density of the manufactured gypsum board substrate is more uniform.

[0026] Among them, the flattening roller 210 is rotatably arranged above the conveying surface of the conveying device 100. When the lower protective paper 300 and the slurry pass between the flattening roller 210 and the conveying surface of the conveying device 100, the lower protective paper 300 and the slurry will drive the flattening roller 210 to rotate. The rolling flattening roller 210 squeezes the large bubbles in the slurry on the lower protective paper 300 to defoam the slurry. The rolling flattening roller 210 flattens the slurry on the lower protective paper 300.

[0027] In some examples, such as Figure 1 and Figure 3 As shown, the slurry coating device 200 further includes a cleaning roller 220, which is located above the conveying surface of the conveying device 100 and is spaced from the conveying surface of the conveying device 100, and the outer peripheral surface of the flattening roller 210 abuts against the outer peripheral surface of the cleaning roller 220, and the cleaning roller 220 is configured to clean the outer peripheral surface of the flattening roller 210. That is, during the rolling process of the flattening roller 210, the cleaning roller 220 will roll together with the flattening roller 210 and the cleaning roller 220 will squeeze each other to clean each other, which can not only prevent the flattening roller 210 from adhering to the slurry, but also prevent the cleaning roller 220 from adhering to the slurry.

[0028] In some examples, such as Figure 1 and Figure 3As shown, the slurry smearing device 200 also includes: a driving device 230; and a first frame 240, one end of the first frame 240 is hingedly connected to the bracket 110 of the conveying device 100 through a first hinge shaft 270, and the other end is transmission-connected to the driving device 230, and the flattening roller 210 and the cleaning roller 220 can be rotatably installed on the first frame 240, and the driving device 230 is configured to drive the first frame 240 to rotate around the first hinge shaft 270 so that the flattening roller 210 is close to or away from the conveying surface of the conveying device 100.

[0029] The driving device 230 drives the first frame 240 to rotate around the first hinge shaft 270, so that the flattening roller 210 stops at a first position close to the conveying surface of the conveying device 100 (eg, Figure 1 and Figure 3 As shown), when the gypsum board production line is producing the gypsum board substrate, the flattening roller 210 flattens the slurry on the lower face paper 300 and defoams the bubbles in the slurry.

[0030] The driving device 230 drives the first frame 240 to rotate around the first hinge shaft 270, so that the flattening roller 210 stops at the second position away from the conveying surface of the conveying device 100 (this state is not shown in the figure), then the distance between the flattening roller 210 and the conveying surface of the conveying device 100 is large, and the lower protective paper 300 can be smoothly inserted between the flattening roller 210 and the conveying surface of the conveying device 100. After the lower protective paper 300 is inserted between the flattening roller 210 and the conveying surface of the conveying device 100, the driving device 230 drives the first frame 240 to rotate around the first hinge shaft 270 again, so that the flattening roller 210 stops at the first position close to the conveying surface of the conveying device 100 (such as Figure 1 and Figure 3 As shown), and then through the gypsum board production line to make gypsum board substrate.

[0031] In some embodiments, Figure 1 and Figure 3 As shown, the driving device 230 is a telescopic cylinder (such as a gas cylinder or an oil cylinder, etc.), one end of the telescopic cylinder is hingedly connected to the other end of the first frame 240 through a second hinge shaft 260, and the other end of the telescopic cylinder is hingedly connected to the bracket 110. This solution has a simple structure and is easy to implement.

[0032] Of course, the drive device 230 can also be configured as a motor screw nut structure, a motor gear rack structure or a motor sprocket chain structure, etc., all of which can achieve the purpose of this application. The purpose does not deviate from the design concept of the present invention and will not be repeated here. They should all fall within the protection scope of this application.

[0033] In some examples, the gypsum board production line further includes: a second frame 250, the second frame 250 is fixed to the bracket 110, one end of the first frame 240 is hingedly connected to one end of the second frame 250 through a first hinge shaft, and the other end of the telescopic cylinder is hingedly connected to the other end of the second frame 250. The flattening roller 210, the cleaning roller 220, the driving device 230, the first frame 240 and the second frame 250 together constitute the slurry coating device 200, and the slurry coating device 200 can be assembled offline and fixedly installed on the bracket 110 of the conveying device 100 as a whole through the second frame 250, so that the operation of installing the slurry coating device 200 on the bracket 110 is simpler.

[0034] In some embodiments, Figure 1 and Figure 3 As shown, the second frame 250 and the telescopic cylinder are both located below the first frame 240, and the telescopic cylinder is located upstream of the second frame 250 (the upstream is the front side in the conveying direction), and the first hinge shaft 270 and the second hinge shaft 260 are both located below the conveying surface of the conveying device 100, so that the slurry coating device 200 occupies relatively less space above the conveying surface of the conveying device 100.

[0035] Of course, the second frame 250 and the telescopic cylinder may be both located above the first frame 240; of course, the telescopic cylinder may be located downstream of the second frame 250 (the downstream is the rear side in the conveying direction); of course, at least one of the first hinge shaft 270 and the second hinge shaft 260 may be located above the conveying surface of the conveying device 100, etc.; all of the above may achieve the purpose of the present application, and their purpose does not deviate from the design concept of the present invention, and will not be repeated here, and shall all fall within the scope of protection of the present application.

[0036] In some examples, such as Figure 1 and Figure 3 As shown, the diameter of the flattening roller 210 is greater than the diameter of the cleaning roller 220, and the distance between the flattening roller 210 and the conveying surface of the conveying device 100 is less than the distance between the cleaning roller 220 and the conveying surface of the conveying device 100. That is, when the gypsum board production line is manufacturing the gypsum board substrate, the flattening roller 210 contacts the slurry on the lower face paper 300, and the cleaning roller 220 does not contact the slurry on the lower face paper 300.

[0037] Of course, the diameter of the flattening roller 210 may be equal to the diameter of the cleaning roller 220; of course, the diameter of the flattening roller 210 may be smaller than the diameter of the cleaning roller 220, etc.; all of the above can achieve the purpose of the present application, and its purpose does not deviate from the design concept of the present invention, and will not be repeated here, and should all fall within the scope of protection of the present application.

[0038] In some embodiments, Figures 1 to 4As shown, the gypsum board production line further includes: a mixer 500, which is located upstream of the slurry coating device 200 and is configured to supply slurry to the lower face paper 300; and a forming table 600, which is located downstream of the slurry coating device 200, and the upper face paper 400 is arranged on the forming table 600, and the lower face paper 300, the slurry and the upper face paper 400 are continuously formed downstream of the forming table 600 to form a gypsum board substrate. Figure 4 As shown, the forming plate 610 of the forming station 600 is located between the lower face paper 300 and the upper face paper 400 .

[0039] To summarize, in the gypsum board production line of the embodiment of the present invention, when the gypsum board production line is producing a gypsum board substrate, the lower facing paper is located on the conveying surface of the conveying device, the slurry is located on the lower facing paper, and the flattening roller is located above the slurry. When the lower facing paper and the slurry pass between the flattening roller and the conveying surface of the conveying device, the flattening roller will squeeze out the large bubbles in the slurry on the lower facing paper to defoam the slurry. This can avoid large bubble holes on the manufactured gypsum board substrate and can effectively improve the qualified rate of the manufactured gypsum boards.

[0040] Furthermore, the flattening roller will flatten the slurry on the lower face paper, so that the slurry is evenly applied to the lower face paper. This not only ensures that the slurry can be formed homogeneously and stably during subsequent molding and extrusion, but also ensures that the surface density of the manufactured gypsum board substrate is more uniform.

[0041] Among them, the flattening roller is rotatably arranged above the conveying surface of the conveying device. When the lower face paper and the slurry pass between the flattening roller and the conveying surface of the conveying device, the lower face paper and the slurry will drive the flattening roller to rotate, and the rolling flattening roller squeezes the large bubbles in the slurry on the lower face paper to defoam the slurry, and the rolling flattening roller flattens the slurry on the lower face paper.

[0042] In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "relative", "four corners", "periphery", "'mouth'-shaped structure" 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 'this' invention and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0043] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", and "assembly" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; the terms "installation", "connection", and "fixed connection" can be a direct connection, or an indirect connection through an intermediate medium, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Although the embodiments disclosed in the present invention are as above, the contents described are only embodiments adopted to facilitate understanding of the present invention and are not intended to limit the present invention. Any technician in the field to which the present invention belongs can make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in the present invention, but the patent protection scope of the present invention shall still be defined by the attached claims.

Claims

1. A gypsum board production line, characterized in that: include: Conveying device; and The slurry coating device comprises a flattening roller, which is rotatably arranged above the conveying surface of the conveying device and is configured to flatten the slurry on the lower face paper and defoam bubbles in the slurry on the lower face paper.

2. The gypsum board production line according to claim 1, characterized in that: The slurry smearing device also includes a cleaning roller, which is located above the conveying surface of the conveying device and spaced apart from the conveying surface of the conveying device, and the outer peripheral surface of the flattening roller abuts against the outer peripheral surface of the cleaning roller, and the cleaning roller is configured to clean the outer peripheral surface of the flattening roller.

3. The gypsum board production line according to claim 2, characterized in that: The slurry applying device also includes: Drive mechanism; and The first frame has one end hingedly connected to the bracket of the conveying device through a first hinge shaft, and the other end is transmission-connected to the driving device. The flattening roller and the cleaning roller can be rotatably mounted on the first frame, and the driving device is configured to drive the first frame to rotate around the first hinge shaft so that the flattening roller is close to or away from the conveying surface of the conveying device.

4. The gypsum board production line according to claim 3, characterized in that: The driving device is a telescopic cylinder, one end of which is hingedly connected to the other end of the first frame through a second hinge shaft, and the other end of the telescopic cylinder is hingedly connected to the bracket.

5. The gypsum board production line according to claim 4, characterized in that: Also includes: The second frame is fixed to the bracket, one end of the first frame is hingedly connected to one end of the second frame through the first hinge shaft, and the other end of the telescopic cylinder is hingedly connected to the other end of the second frame.

6. The gypsum board production line according to claim 5, characterized in that: The second frame and the telescopic cylinder are both located below the first frame, and the telescopic cylinder is located upstream of the second frame.

7. The gypsum board production line according to claim 5, characterized in that: The first hinge shaft and the second hinge shaft are both located below the conveying surface of the conveying device.

8. The gypsum board production line according to any one of claims 2 to 7, characterized in that: The diameter of the flattening roller is greater than the diameter of the cleaning roller, and the distance between the flattening roller and the conveying surface of the conveying device is smaller than the distance between the cleaning roller and the conveying surface of the conveying device.

9. The gypsum board production line according to any one of claims 1 to 7, characterized in that: Also includes: A mixer is located upstream of the slurry applying device and is configured to supply the slurry.

10. The gypsum board production line according to any one of claims 1 to 7, characterized in that: Also includes: A forming station is located downstream of the slurry applying device and is configured to form a gypsum board substrate.

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