Complete equipment for producing fiber cement board

Abstract

The utility model provides complete equipment for producing a fiber cement board. The complete equipment comprises a suction filtration tank, a slicking device, a demolding device, a shaping device and a vacuum pump, the suction filtration tank is used for containing prepared cement slurry and forming a plate blank of a fiber cement plate, the slicking device is arranged on one side of the suction filtration tank and used for stirring and slicking the cement slurry in the suction filtration tank, and the demolding device is used for being inserted into the barrel body and separating the adhesion position of the plate blank of the fiber cement plate and the inner wall of the barrel body; the bottom plate is used for placing a plate blank transferred from the suction filtration tank; the shaping device is used for cutting the plate blank to obtain a fiber cement plate finished product, and the vacuum pump is used for pumping and filtering water of cement slurry and blowing air into the pumping and filtering tank to blow off the plate blank. The utility model provides a complete device for producing fiber cement boards, which can be used for forming a plurality of fiber cement boards at one time and is not easy to adhere during demoulding.

Description

Technical Field

[0001] The utility model belongs to the field of fiber cement board forming, and particularly relates to a complete set of devices for producing fiber cement boards. Background Art

[0002] Fiber cement board refers to a board made of cement as a gelling material, organic synthetic fibers, inorganic mineral fibers or cellulose fibers as reinforcing materials, adding water and chemical additives, and formed, pressed (or non-pressed), and cured by autoclaving (or non-autoclaving). Fiber cement boards have the characteristics of fire prevention and insulation (non-combustible Class A), waterproof and moisture-proof, heat insulation and sound insulation, light weight and high strength, simple construction, economic beauty, safety and harmlessness, and extremely long service life. Fiber cement boards can be used in many places such as shopping malls, hotels, hospitals, factories, exterior wall insulation systems, steel structure floors, and ceiling materials. With the development of the times, people's requirements for the beauty of buildings are getting higher and higher, and the demand for wall decoration is also gradually increasing. Fiber cement boards can act as a non-removable decorative formwork combined with a cast-in-place floor slab and a decorative ceiling.

[0003] The existing production process of fiber cement boards includes: 1. Pulp making: Pour the prepared cement slurry (with a total volume of, for example, 900 - 950 ml) into a suction filtration tank (a filter screen and filter cloth have been laid at the bottom of the suction filtration tank), and workers use a scraper to level the materials in the suction filtration tank to ensure uniform thickness of the fiber cement board; 2. Forming: The lower end branch pipe of the suction filtration tank is connected to a vacuum pump to start suction filtration (pumping out the water in the cement slurry); 3. Demolding: After suction filtration and forming, the fiber cement board is removed from the inside of the suction filtration tank. The existing suction filtration tank is a square container with the same shape as the fiber cement board. The inside of the suction filtration tank is provided with a bottom plate with holes for placing the filter screen, filter cloth, and filter paper. The functions of the filter cloth, filter screen, and filter paper are to prevent the cement slurry from being pumped away and slow down the suction filtration speed, facilitate operation. There is a branch pipe connected to the inside of the suction filtration tank below the interlayer. Workers manually leveling with a scraper has operation errors. During demolding, use a scraper to cut the fiber cement board from the four inner walls of the suction filtration tank to ensure that there is no adhesion between the fiber cement board and the inner walls of the suction filtration tank. Then, turn the suction filtration tank and the branch pipe upside down by 180°. Hold the branch pipe with one hand, and insert the bottom plate (the shape of the bottom plate is the same as the cross-sectional shape of the suction filtration tank) into the suction filtration tank with the other hand to support the fiber cement board, and then blow air through the branch pipe of the suction filtration tank with the mouth to blow the fiber cement board off the suction filtration tank and onto the bottom plate to remove the fiber cement board. The existing suction filtration tank can only form one fiber cement board at a time, and the four corners of the suction filtration tank are all right angles. When the fiber cement board is removed, it does not fall parallel, and is easily stuck to one side or corner of the suction filtration tank, resulting in difficult demolding and easy breakage of the fiber cement board. Blowing air with the mouth has a small air volume and it is not easy to blow the fiber cement board off. Summary of the Utility Model

[0004] In view of the problems existing in the prior art, the utility model provides a complete set of devices for producing fiber cement boards, which can form multiple fiber cement boards at one time and are not easily adhered during demoulding.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A complete set of devices for producing fiber cement boards, which includes a suction filtration tank, a squeegee installed on the suction filtration tank, a demoulding device for taking out the formed fiber cement board blank from the suction filtration tank, a shaping device for cutting the blank to obtain the finished fiber cement board, and a vacuum pump connected to the bottom of the suction filtration tank for suction filtration;

[0007] Among them, the suction filtration tank includes a rotatable barrel body, a branch pipe connected to the bottom end of the barrel body, a bracket for supporting the barrel body, and a filter plate arranged inside the barrel body. The filter plate is provided with evenly distributed suction filtration holes;

[0008] The squeegee is used for stirring and scraping the cement slurry in the suction filtration tank. The squeegee includes a base arranged on one side of the suction filtration tank, a support rod fixed on the base, a driving part arranged on the support rod, and a plurality of blades connected to the driving part and extending into the suction filtration tank for stirring the cement slurry;

[0009] The demoulding device is used to insert into the barrel body to separate the adhesion between the fiber cement board blank and the inner wall of the barrel body;

[0010] The shaping device includes a shaping groove and a handle fixed above the shaping groove.

[0011] The vacuum pump is preferably a blow-suction dual-purpose pump, which is used for sucking the water of the cement slurry and blowing air into the suction filtration tank to blow off the blank. The vacuum pump is connected to the branch pipe through a suction filtration pipe.

[0012] Furthermore, the barrel body includes a cylindrical part and an inverted conical part connected below the cylindrical part. Preferably, the diameter of the cylindrical part is more than twice the length of the fiber cement board, and the height of the cylindrical part is more than the thickness of the fiber cement board. The inverted conical part is used for converging the water filtered from the cement slurry. The filter plate is arranged at the connection of the cylindrical part and the inverted conical part. Two symmetric first cross columns are fixed on the outer wall of the cylindrical part.

[0013] Furthermore, the branch pipe is connected to the bottom end of the inverted conical part. The central axis of the branch pipe is on the central axis of the inverted conical part or the cylindrical part. The lower part of the branch pipe is provided with an external thread for connecting the suction filtration pipe.

[0014] Furthermore, the bracket includes columns arranged on both sides of the barrel body, second cross columns fixed on the columns, base plates arranged at the bottom ends of the columns, and rolling bearings connected between the first cross columns and the second cross columns. The first cross columns are connected to the outer rings of the rolling bearings, and the second cross columns are connected to the inner rings of the rolling bearings. The up-and-down free rotation of the barrel body is realized through the rolling bearings.

[0015] Furthermore, a positioning frame is sleeved on the branch pipe. The positioning frame includes a first sleeve sleeved on the branch pipe, a second sleeve sleeved on the vertical column, and a connecting rod disposed between the first sleeve and the second sleeve. A first threaded hole is formed in the second sleeve, and a bolt is threadedly connected in the first threaded hole. The central axis of the first threaded hole is parallel to the central axis where the connecting rod is located. The inner diameter of the first sleeve is preferably the same as the outer diameter of the branch pipe, and the inner wall of the first sleeve just fits the outer wall of the branch pipe. The positioning frame slides along the branch pipe to above the external thread of the branch pipe, and the bolt is tightened to fix the positioning frame on the vertical column, thereby preventing the barrel from tilting and overturning; when the barrel needs to be overturned, the bolt is loosened, and the positioning frame is slid downward until the first sleeve disengages from the branch pipe, and the barrel is turned over up and down.

[0016] Furthermore, the support rod includes a vertical rod connected to the base and a horizontal rod sliding up and down along the vertical rod. A second threaded hole is formed at one end of the horizontal rod connected to the vertical rod, the central axis of the second threaded hole is perpendicular to the vertical rod, a rotating handle is threadedly connected in the second threaded hole, and a through hole is formed at the other end of the horizontal rod, and the central axis of the through hole is parallel to the vertical rod.

[0017] Furthermore, the driving member includes a motor fixed on the horizontal rod, a rotating rod connected to the power end of the motor and passing through the through hole, and a base disposed at the free end of the rotating rod. The base can be, for example, a columnar body.

[0018] Furthermore, one end of the paddle is fixedly connected to the base. There are at least two paddles, and the paddles are evenly distributed around the base. The bottom surface of the paddle is flush with the bottom surface of the base. An arc is formed at the end of the paddle far from the base. The horizontal rod slides up and down, driving the motor and the paddle to move up and down. The paddle extends into the cement slurry in the suction filtration tank. The position of the motor is fixed by rotating the rotating handle, and the motor is turned on, and the paddle rotates to stir the cement slurry to ensure the uniform thickness of the slab.

[0019] Furthermore, the demolding device includes a cutting cylinder. The cutting cylinder is a circular thin cylinder. Preferably, the outer diameter of the cutting cylinder is slightly smaller than the inner diameter of the barrel. The height of the cutting cylinder is preferably slightly larger than the thickness of the slab, for example, 0.2 - 0.5 mm larger. The height of the cutting cylinder can be, for example, 9 - 11 mm. A closed cover plate is provided at one port of the cutting cylinder, and the other port of the cutting cylinder is open and provided with a first cutting blade. The first cutting blade is arranged along the circumference of the cutting cylinder. A lifting handle is fixed on the outside of the closed cover plate for convenient taking of the demolding device. The material of the demolding device can be, for example, stainless steel.

[0020] Furthermore, the complete set of devices for producing fiber cement boards of the present utility model may further include a bottom plate for placing the slab transferred from the suction filtration tank. The bottom plate can be of any shape as long as it can completely place the slab thereon. The bottom plate can be, for example, a stainless steel plate.

[0021] Further, the shape of the notch of the shaping groove is the same as that of the finished fiber cement board. The height of the shaping groove is not less than the thickness of the slab. The shaping groove can be, for example, a rectangular groove with both ends open or a rectangular groove with one end open and the other end closed. The length of the rectangular groove can be, for example, about 205 - 215 mm, preferably about 210 mm, and the width can be, for example, 75 - 85 mm, preferably about 80 mm. A second cutting blade is provided at the notch of the shaping groove, and the second cutting blade is arranged along the groove wall of the shaping groove.

[0022] Further, the handle is arc-shaped. For example, there are two handles, which are distributed on two opposite sides of the shaping groove. The handle is used to conveniently take out the shaping device from the slab.

[0023] Further, one end of the suction filter pipe connected to the branch pipe is provided with a threaded pipe. The non-threaded port of the threaded pipe extends radially inward to form an inner ring, and the port of the suction filter pipe extends radially outward to form an outer ring. The outer ring overlaps the inner ring, and a sealing gasket is preferably fixed on the outer ring. When it is necessary to connect the suction filter pipe to the branch pipe, rotate the threaded pipe onto the external thread of the branch pipe until the branch pipe abuts against the outer ring of the suction filter pipe. When it is necessary to remove the suction filter pipe, loosen the threaded pipe and remove the suction filter pipe.

[0024] The usage process of a complete set of devices for producing fiber cement boards of the present utility model:

[0025] (1) Flip the barrel body so that the branch pipe is in a vertical state. Slide the positioning frame along the column, and the first sleeve enters the branch pipe. Adjust the first sleeve above the external thread of the branch pipe, and tighten the bolt to fix the positioning frame on the column. Lay the filter cloth, filter screen, and wet filter paper on the filter plate from bottom to top. The filter screen, filter cloth, and filter paper are all circular and have the same diameter as the barrel body.

[0026] (2) Connect the suction filter pipe to the branch pipe. Rotate the threaded pipe onto the external thread of the branch pipe until the branch pipe abuts against the outer ring of the suction filter pipe. Pour all the prepared cement slurry into the interior of the barrel body. Place the scraper on one side of the suction filter tank, ensuring that the paddle is directly above the barrel body. Adjust the position of the horizontal rod so that the paddle extends into the cement slurry in the suction filter tank. Rotate the turning handle to fix the horizontal rod on the vertical rod, thereby fixing the position of the motor. Turn on the motor, and the paddle rotates to stir the cement slurry. After the cement slurry is stirred evenly, turn off the motor (because the solid content of the cement slurry just poured into the suction filter tank will quickly settle, resulting in uneven thickness of the fiber cement board made. Therefore, at the initial stage of pouring the cement slurry, use the scraper to stir the cement slurry evenly again, so that the fiber cement board formed after suction filtration will have uniform thickness. The stirring process is short to avoid continuously stirring and affecting the setting of the solid content). Rotate the turning handle in the reverse direction and move the horizontal rod upward so that the paddle moves out of the barrel body.

[0027] (3) While starting the motor, turn on the vacuum pump to extract the water from the cement slurry to form a slab. Then turn off the vacuum pump, insert a demolding device downward into the barrel (the inner wall of the cutting cylinder of the demolding device has been greased), separate the adhesion between the fiber cement board slab and the inner wall of the barrel, loosen the threaded pipe, remove the suction filter pipe, then loosen the bolt, and slide the positioning frame downward until the first sleeve disengages from the branch pipe. Hold the lifting handle with one hand and the branch pipe with the other hand, and turn the barrel 180 degrees so that the barrel mouth of the barrel faces downward. Connect the suction filter pipe to the branch pipe again, turn on the vacuum pump, and blow air into the barrel to blow the slab off the suction filter groove and onto the demolding device to remove the slab;

[0028] (4) After the slab is removed, invert the demolding device onto the bottom plate to transfer the slab to the bottom plate. Then transfer the bottom plate and the slab to the lower part of the molding part of the cement flexural and compressive testing machine. Place the shaping device on the slab, and the molding part of the cement flexural and compressive testing machine applies a downward pressure to the shaping device to press the shaping device into the slab. One required fiber cement board is cut from the slab. Hold the handle and take out the shaping device, cut off the excess edge material. Then, by changing the cutting position, the remaining fiber cement boards can be cut. After all the fiber cement boards are cut, insert a small slit between the fiber cement board and the bottom plate with a scraper. Then insert a stainless steel thin plate of the same size as the fiber cement board into the slit, and then hold the stainless steel thin plate by hand to transfer the fiber cement board from the bottom plate.

[0029] Both the vacuum pump and the cement flexural and compressive testing machine are common equipment in this field.

[0030] The beneficial effects of the present utility model:

[0031] The present utility model provides a complete set of devices for producing fiber cement boards. A slab containing multiple fiber cement board finished products is formed through a circular barrel. After cutting with a shaping device, multiple fiber cement board finished products are obtained at one time, reducing the labor intensity of workers; the barrel for forming the slab is set to be circular, thus forming a circular slab. The circular slab and the inner wall of the barrel are evenly stressed. When using the vacuum pump for reverse blowing, it is convenient for the slab to be removed from the barrel, and at the same time, it can avoid the slab breaking during the demolding process; through the provided rolling bearings, the free flipping of the barrel is realized, increasing the convenience of operation; using a leveling device to stir and level the cement slurry not only ensures the uniform thickness of the formed cement board, but also eliminates the problem of the uneven surface of the formed cement board caused by manual leveling operation, ensuring the uniform dispersion of the solid content in the cement slurry and the flatness of the surface of the formed cement board; using a shaping device to cut the slab to obtain multiple fiber cement board finished products saves time, simplifies the operation steps, and improves efficiency. Description of the Drawings

[0032] Figure 1 It is a schematic diagram of the suction filter groove and the leveling device included in a complete set of devices for producing fiber cement boards.

[0033] Figure 2 It is a schematic structural diagram of a suction filtration tank.

[0034] Figure 3 It is a schematic structural diagram of a leveling device.

[0035] Figure 4 It is a schematic structural diagram of a demolding device.

[0036] Figure 5 It is a sectional perspective view of the demolding device.

[0037] Figure 6 It is a schematic structural diagram of a shaping device.

[0038] Figure 7 It is a sectional perspective view of the shaping device.

[0039] Figure 8 It is a schematic diagram of the connection between the suction filtration pipe and the threaded pipe.

[0040] Figure 9 It is a sectional perspective view of the connection between the suction filtration pipe and the threaded pipe.

[0041] Reference numerals:

[0042] 1 - Suction filtration tank, 101 - Barrel body, 1011 - Cylindrical part, 1012 - Inverted conical part, 102 - Branch pipe, 1021 - External thread, 103 - Support, 1031 - Column, 1032 - Second cross bar, 1033 - Base plate, 1034 - Rolling bearing, 104 - Filter plate, 1041 - Suction filtration hole, 105 - First cross bar,

[0043] 2 - Leveling device, 201 - Base, 202 - Support rod, 2021 - Vertical rod, 2022 - Horizontal rod, 2023 - Rotating handle, 203 - Driving part, 2031 - Motor, 2032 - Rotating rod, 2033 - Base, 204 - Blade,

[0044] 3 - Demolding device, 301 - Cutting cylinder, 302 - Sealing cover plate, 303 - First cutting edge, 304 - Handle,

[0045] 4 - Shaping device, 401 - Shaping groove, 4011 - Second cutting edge, 402 - Handle,

[0046] 5 - Suction filtration pipe, 501 - Outer ring,

[0047] 6 - Positioning frame, 601 - First sleeve, 602 - Second sleeve, 603 - Connecting rod,

[0048] 7 - Bolt,

[0049] 8 - Threaded pipe, 801 - Inner ring. Detailed implementation manners

[0050] The present utility model will be described in detail below with reference to the accompanying drawings.

[0051] As Figures 1-9 shown, a complete set of devices for producing fiber cement boards provided by the present utility model includes a suction filter tank 1, a squeegee 2 installed on the suction filter tank 1, a demolding device 3 for taking out the formed fiber cement board blank from the suction filter tank 1, a shaping device 4 for cutting the blank to obtain finished fiber cement boards, and a vacuum pump (not shown) connected to the bottom of the suction filter tank 1 for suction filtration;

[0052] Among them, the suction filter tank 1 includes a rotatable barrel body 101, a branch pipe 102 connected to the bottom end of the barrel body 101, a bracket 103 for supporting the barrel body 101, and a filter plate 104 arranged inside the barrel body 101. The filter plate 104 is provided with evenly distributed suction filtration holes 1041;

[0053] The squeegee 2 is used for stirring the cement slurry in the suction filter tank 1 in the initial stage and scraping the surface of the cement slurry in the later stage. The squeegee 2 includes a base 201 arranged on one side of the suction filter tank 1, a support rod 202 fixed to the base 201, a driving member 203 arranged on the support rod 202, and a plurality of blades 204 connected to the driving member 203 and extending into the suction filter tank for stirring the cement slurry;

[0054] The demolding device 3 is used for inserting into the barrel body 101 to separate the adhesion between the fiber cement board blank and the inner wall of the barrel body 101;

[0055] The shaping device 4 includes a shaping groove 401 and a handle 402 fixed above the shaping groove 401.

[0056] The vacuum pump is preferably a blow-suction dual-purpose pump, which is used for sucking the water of the cement slurry and blowing air into the suction filter tank 1 to blow off the blank. The vacuum pump is connected to the branch pipe 102 through a suction filtration pipe 5.

[0057] The barrel body 101 includes a cylindrical barrel part 1011 and an inverted conical part 1012 connected to the lower part of the cylindrical barrel part 1011. The diameter of the cylindrical barrel part 1011 is preferably greater than twice the length of the fiber cement board, and the height of the cylindrical barrel part 1011 is greater than the thickness of the fiber cement board. The inverted conical part 1012 is used for converging the water filtered from the cement slurry. The filter plate 104 is arranged at the connection between the cylindrical barrel part 1011 and the inverted conical part 1012. Two symmetrically arranged first cross columns 105 are fixed on the outer wall of the cylindrical barrel part 1011.

[0058] The branch pipe 102 is connected to the bottom end of the inverted conical part 1012. The central axis of the branch pipe 102 is on the central axis of the inverted conical part 1012 or the cylindrical barrel part 1011. The lower part of the branch pipe 102 is provided with an external thread 1021 for connecting the suction filtration pipe.

[0059] The support 103 includes columns 1031 arranged on both sides of the barrel 101, a second cross-bar 1032 fixed to the columns 1031, a base plate 1033 arranged at the bottom ends of the columns 1031, and a rolling bearing 1034 connected between the first cross-bar 105 and the second cross-bar 1032. The first cross-bar 105 is connected to the outer ring of the rolling bearing 1034, and the second cross-bar 1032 is connected to the inner ring of the rolling bearing 1034. The up-and-down free flipping of the barrel 101 is realized through the rolling bearing 1034.

[0060] A positioning frame 6 is sleeved on the branch pipe 102. The positioning frame 6 includes a first sleeve 601 sleeved on the branch pipe 102, a second sleeve 602 sleeved on the column 1031, and a connecting rod 603 arranged between the first sleeve 601 and the second sleeve 602. A first threaded hole is opened on the second sleeve 602, and a bolt 7 is threadedly connected in the first threaded hole. The central axis of the first threaded hole is parallel to the central axis where the connecting rod 603 is located. The inner diameter of the first sleeve 601 is preferably the same as the outer diameter of the branch pipe 102. The inner wall of the first sleeve 601 just fits the outer wall of the branch pipe 102. The positioning frame 6 slides along the branch pipe 102 to above the external thread 1021 of the branch pipe 102, and the bolt 7 is tightened to fix the positioning frame 6 on the column 1031, thereby preventing the barrel 101 from tilting and flipping. When the barrel 101 needs to be flipped, the bolt 7 is loosened, and the positioning frame 6 is slid downward until the first sleeve 601 is separated from the branch pipe 102, and the barrel 101 is flipped up and down.

[0061] The support rod 202 includes a vertical rod 2021 connected to the base 201 and a horizontal rod 2022 that slides up and down along the vertical rod 2021. One end of the horizontal rod 2022 connected to the vertical rod 2021 is opened with a second threaded hole. The central axis of the second threaded hole is perpendicular to the vertical rod 2021. A rotating handle 2023 is threadedly connected in the second threaded hole. The other end of the horizontal rod 2022 is opened with a through hole. The central axis of the through hole is parallel to the vertical rod 2021.

[0062] The driving member 203 includes a motor 2031 fixed on the horizontal rod 2022, a rotating rod 2032 connected to the power end of the motor 2031 and passing through the through hole, and a base 2033 arranged at the free end of the rotating rod 2032. The base 2033 can be, for example, a columnar body.

[0063] One end of the blade 204 is fixedly connected to the base 2033. There are at least two blades 204, which are evenly distributed around the base 2033. The bottom surface of the blade 204 is flush with the bottom surface of the base 2033. The blade 204 can be, for example, strip-shaped. The end of the blade 204 far from the base 2033 forms an arc, and the diameter of the circle where the arc is located is preferably the same as the inner diameter of the barrel part, so as to stir the cement slurry in all directions. The horizontal rod 2022 slides up and down, driving the motor 2031 and the blade 204 to move up and down. The blade 204 extends into the cement slurry in the suction filtration tank 1. By rotating the handle 2023, the horizontal rod 2022 is fixed, thereby fixing the position of the motor 2031. The motor 2031 is turned on, and the blade 204 rotates to stir the cement slurry, ensuring the uniform thickness of the slab.

[0064] The demolding device 3 includes a cutting cylinder 301. The cutting cylinder 301 is a circular thin cylinder. Preferably, the outer diameter of the cutting cylinder 301 is slightly smaller than the inner diameter of the barrel body 101. The height of the cutting cylinder 301 is preferably slightly larger than the thickness of the slab, for example, 0.2 - 0.5 mm larger. The height of the cutting cylinder 301 can be, for example, 9 - 11 mm. One port of the cutting cylinder 301 is provided with a closed cover plate 302, and the other port of the cutting cylinder 301 is open and provided with a first cutting blade 303. The first cutting blade 303 is arranged along the circumference of the cutting cylinder 301. A handle 304 is fixed on the outside of the closed cover plate 302 for convenient taking of the demolding device 3. The material of the demolding device 3 can be, for example, stainless steel.

[0065] The complete set of devices for producing fiber cement boards of the present utility model can further include a bottom plate for placing the slab transferred from the suction filtration tank 1. The bottom plate can be of any shape as long as it can completely place the slab on it. The bottom plate can be, for example, a stainless steel plate.

[0066] The shape of the notch of the shaping groove 401 is the same as the shape of the finished fiber cement board. The height of the shaping groove 401 is not less than the thickness of the slab. The shaping groove 401 can be, for example, a rectangular groove with both ends open or a rectangular groove with one end open and the other end closed. The length of the rectangular groove can be, for example, about 205 - 215 mm, preferably about 210 mm, and the width can be 75 - 85 mm, preferably about 80 mm. A second cutting blade 4011 is provided at the notch of the shaping groove 401, and the second cutting blade 4011 is arranged along the groove wall of the shaping groove 401.

[0067] The handle 402 is arranged in an arc shape. There are, for example, two handles 402, which are distributed on two opposite side edges of the shaping groove 401. The handle 402 is used to conveniently take out the shaping device 4 from the slab.

[0068] One end of the suction filter pipe 5 connected to the branch pipe 102 is provided with a threaded pipe 8. The non-threaded port of the threaded pipe 8 extends radially inward to form an inner ring 801, and the port of the suction filter pipe 5 extends radially outward to form an outer ring 501. The outer ring 501 is lapped on the inner ring 801, and a sealing gasket is preferably fixed on the outer ring 501. When it is necessary to connect the suction filter pipe 5 to the branch pipe 102, rotate the threaded pipe 8 on the external thread 1021 of the branch pipe 102 until the branch pipe 102 abuts against the outer ring 501 of the suction filter pipe 5. When it is necessary to remove the suction filter pipe 5, loosen the threaded pipe 8 and remove the suction filter pipe 5.

[0069] The using process of a complete set of devices for producing fiber cement boards of the present utility model:

[0070] (1) Flip the barrel body 101 so that the branch pipe 102 is in a vertical state. Slide the positioning frame 6 along the column 1031. The first sleeve 601 enters the branch pipe 102. Adjust the first sleeve 601 above the external thread 1021 of the branch pipe 102, and tighten the bolt 7 to fix the positioning frame 6 on the column 1031. Lay the filter cloth, filter screen and wet filter paper on the filter plate 104 from bottom to top. The filter screen, filter cloth and filter paper are all circular and have the same diameter as the diameter of the barrel body 101;

[0071] (2) Connect the suction filter pipe 5 to the branch pipe 102. Rotate the threaded pipe 8 on the external thread 1021 of the branch pipe 102 until the branch pipe 102 abuts against the outer ring 501 of the suction filter pipe 5. Pour the prepared cement slurry into the interior of the barrel body 101. Place the scraper 2 on one side of the suction filter tank 1, ensuring that the paddle 204 is directly above the barrel body 101. Adjust the position of the horizontal rod 2022 so that the paddle 204 extends into the cement slurry in the suction filter tank 1. Rotate the rotating handle 2023 to fix the horizontal rod 2022 on the vertical rod 2021, thereby fixing the position of the motor 2031. Turn on the motor 2031, and the paddle 204 rotates to stir the cement slurry. After the cement slurry is stirred evenly, turn off the motor 2031 (because the solid content of the cement slurry just poured into the suction filter tank will settle rapidly, resulting in uneven thickness of the fiber cement board produced. Therefore, at the initial stage of pouring the cement slurry, use the scraper to stir the cement slurry evenly again, so that the fiber cement board formed after suction filtration will have uniform thickness. The stirring process is short to avoid affecting the setting of the solid content by continuous stirring). Rotate the rotating handle 2023 in the reverse direction and move the horizontal rod 2022 upward. The paddle 204 is lifted upward to the surface of the cement slurry in the suction filter tank 1. The motor 2031 drives the paddle 204 to continue rotating, thereby scraping the surface of the cement slurry in the suction filter tank 1. Finally, continue to move the horizontal rod 2022 upward. After the paddle 204 is separated from the surface of the cement slurry, remove it from the barrel body 101;

[0072] (3) While starting the motor, turn on the vacuum pump to extract the water from the cement slurry to form a slab. Then turn off the vacuum pump, insert the demolding device 3 into the barrel 101 downward (the inner wall of the cutting cylinder 301 of the demolding device 3 has been greased), separate the adhesion between the fiber cement board slab and the inner wall of the barrel 101, loosen the threaded pipe 8, remove the suction filter pipe 5, then loosen the bolt 7, and slide the positioning frame 6 downward until the first sleeve 601 disengages from the branch pipe 102. Hold the lifting handle 304 with one hand and the branch pipe 102 with the other hand, turn the barrel 180 degrees so that the mouth of the barrel 101 faces downward. Connect the suction filter pipe 5 to the branch pipe 102 again, turn on the vacuum pump, blow air into the barrel 101, and blow the slab out from the suction filter tank 1 and onto the demolding device 3 to remove the slab;

[0073] (4) After the slab is removed, invert the demolding device 3 on the bottom plate so that the slab is transferred to the bottom plate. The bottom plate and the slab are transferred to the lower part of the molding part of the cement flexural and compressive testing machine. The shaping device 4 is placed on the slab. The molding part of the cement flexural and compressive testing machine applies a downward pressure to the shaping device 4, presses the shaping device 4 into the slab, and cuts out a required fiber cement board from the slab. Hold the handle 402 with your hand and take out the shaping device 4, cut off the excess edge material. Then, by changing the cutting position, the remaining fiber cement boards can be cut out. After all the fiber cement boards are cut, insert a small slit between the fiber cement board and the bottom plate with a scraper, then insert a stainless steel thin plate of the same size as the fiber cement board into the slit, and then hold the stainless steel thin plate with your hand and transfer the fiber cement board from the bottom plate.

[0074] Both the vacuum pump and the cement flexural and compressive testing machine are common devices in the field.

[0075] A complete set of devices for producing fiber cement boards provided by the present utility model is used in the laboratory stage. The obtained fiber cement boards are used in combination with the flexural and compressive testing machine to test the flexural strength of the cement boards, and are used to evaluate the contribution of the fibers to the flexural strength in the cement boards. The strength of the cement board with added fibers is higher than that of the cement board without added fibers, but the amount of fibers added is not the more the better. After a certain addition amount, the strength of the cement board will show a downward trend. Therefore, through experiments, it is necessary to determine the addition amount of fibers at which the flexural strength value of the cement board reaches the maximum, and obtain reference technical indicators (fiber addition amount, maximum flexural strength of the cement board). Through the complete set of devices for producing fiber cement boards provided by the present utility model, the fiber cement boards can be formed at one time, then cut and separated, greatly reducing the labor intensity of workers, saving time, improving efficiency, making fiber cement boards with uniform thickness at one time, changing manual scraping to machine scraping, and solving the problem of inaccurate experimental data caused by uneven thickness of fiber cement boards.

[0076] The preferred embodiments of the present utility model have been described above. However, the above description is not for the purpose of limitation. Those of ordinary skill in the art can make many changes or modifications to the present utility model without departing from the gist and scope of the present utility model. Such changes or modifications should be included within the scope of the appended claims.

Claims

1. A complete set of devices for producing fiber cement boards, characterized in that, It includes a suction filtration tank (1), a leveling device (2) installed on the suction filtration tank (1), a demolding device (3) for taking out the formed fiber cement board blank from the suction filtration tank (1), a shaping device (4) for cutting the blank to obtain the finished fiber cement board, and a vacuum pump connected to the bottom of the suction filtration tank (1) for suction filtration; Among them, the suction filtration tank (1) includes a rotatable barrel body (101), a branch pipe (102) connected to the bottom end of the barrel body (101), a bracket (103) for supporting the barrel body (101), and a filter plate (104) arranged inside the barrel body (101). The filter plate (104) is provided with uniformly distributed suction filtration holes (1041); The leveling device (2) is used for stirring and leveling the cement slurry in the suction filtration tank (1). The leveling device (2) includes a base (201) arranged on one side of the suction filtration tank (1), a support rod (202) fixed to the base (201), a driving member (203) arranged on the support rod (202), and a plurality of blades (204) connected to the driving member (203) and extending into the suction filtration tank (1) for stirring the cement slurry; The demolding device (3) is used to insert into the barrel body (101) to separate the adhesion between the fiber cement board blank and the inner wall of the barrel body (101); The shaping device (4) includes a shaping groove (401) and a handle (402) fixed above the shaping groove (401).

2. The complete set of devices for producing fiber cement boards according to claim 1, characterized in that, The barrel body (101) includes a cylindrical part (1011) and an inverted conical part (1012) connected below the cylindrical part (1011). The filter plate (104) is arranged at the connection of the cylindrical part (1011) and the inverted conical part (1012). Two symmetric first cross columns (105) are fixed on the outer wall of the cylindrical part (1011); and / or The vacuum pump is a blow-suction dual-purpose pump, which is used for sucking the water of the cement slurry and blowing air into the suction filtration tank (1) to blow off the blank. The vacuum pump is connected to the branch pipe (102) through a suction filtration pipe (5).

3. The complete set of devices for producing fiber cement boards according to claim 2, characterized in that, The branch pipe (102) is connected to the bottom end of the inverted conical part (1012). The central axis of the branch pipe (102) is on the central axis of the inverted conical part (1012) or the cylindrical part (1011). The lower part of the branch pipe (102) is provided with an external thread (1021).

4. The complete set of devices for producing fiber cement boards according to claim 2 or 3, characterized in that, The bracket (103) includes columns (1031) arranged on both sides of the barrel body (101), second cross columns (1032) fixed to the columns (1031), a base plate (1033) arranged at the bottom end of the columns (1031), and a rolling bearing (1034) connected between the first cross column (105) and the second cross column (1032). The first cross column (105) is connected to the outer ring of the rolling bearing (1034), and the second cross column (1032) is connected to the inner ring of the rolling bearing (1034).

5. The complete set of devices for producing fiber cement boards according to claim 4, characterized in that, A positioning frame (6) is sleeved on the branch pipe (102). The positioning frame (6) includes a first sleeve (601) sleeved on the branch pipe (102), a second sleeve (602) sleeved on the upright column (1031), and a connecting rod (603) arranged between the first sleeve (601) and the second sleeve (602). A first threaded hole is formed in the second sleeve (602), and a bolt (7) is threadedly connected in the first threaded hole. The central axis of the first threaded hole is parallel to the central axis where the connecting rod (603) is located.

6. The complete set of devices for producing fiber cement boards according to claim 1, characterized in that, The support rod (202) includes a vertical rod (2021) connected to the base (201) and a horizontal rod (2022) sliding up and down along the vertical rod (2021). A second threaded hole is formed at one end of the horizontal rod (2022) connected to the vertical rod (2021). The central axis of the second threaded hole is perpendicular to the vertical rod (2021). A rotating handle (2023) is threadedly connected in the second threaded hole. A through hole is formed at the other end of the horizontal rod (2022), and the central axis of the through hole is parallel to the vertical rod (2021).

7. The complete set of devices for producing fiber cement boards according to claim 6, characterized in that, The driving member (203) includes a motor (2031) fixed on the horizontal rod (2022), a rotating rod (2032) connected to the power end of the motor (2031) and passing through the through hole, and a base (2033) arranged at the free end of the rotating rod (2032).

8. The complete set of devices for producing fiber cement boards according to claim 7, characterized in that, One end of the paddle blade (204) is fixedly connected to the base (2033). There are at least two paddle blades (204), and the paddle blades (204) are evenly distributed around the base (2033). The bottom surface of the paddle blade (204) is flush with the bottom surface of the base (2033), and an arc is formed at one end of the paddle blade (204) away from the base (2033).

9. The complete set of devices for producing fiber cement boards according to claim 1, characterized in that, The demolding device (3) includes a cutting cylinder (301). The cutting cylinder (301) is a circular thin cylinder. A closed cover plate (302) is arranged at one port of the cutting cylinder (301). The other port of the cutting cylinder (301) is open and is provided with a first cutting blade (303). The first cutting blade (303) is arranged along the circumference of the cutting cylinder (301). A lifting handle (304) is fixed on the outer side of the closed cover plate (302).

10. The complete set of devices for producing fiber cement boards according to claim 1, characterized in that, One end of the suction filtration pipe (5) connected to the branch pipe (102) is provided with a threaded pipe (8). The non-threaded port of the threaded pipe (8) extends radially inward to form an inner ring (801). The port of the suction filtration pipe (5) extends radially outward to form an outer ring (501). The outer ring (501) is lapped on the inner ring (801).

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