A performance testing device for high-density cement fiberboard
By combining a magnetic detector and a test controller, the compressive and deformation resistance of high-density cement fiberboard is determined using magnetic powder and electromagnets. This solves the problem of low detection accuracy in existing technologies and achieves efficient and automated performance testing.
Patent Information
- Application Number
- CN202311183361.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-14
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2043-09-14
AI Technical Summary
In the current technology, the performance testing of high-density cement fiberboard relies on visual observation, which has low accuracy and is labor-intensive, making it difficult to accurately judge the compressive strength and deformation resistance of the board.
A magnetic detection device is adopted, which uses the combination of magnetic powder and electromagnet to determine whether the board is deformed by checking whether there is residual magnetic powder in the magnetic groove. Combined with the auxiliary connection component and detection controller, automated detection is achieved.
It enables simple, accurate, and efficient performance testing of high-density cement fiberboard, reducing manual operation and improving the accuracy and automation of testing.
Smart Images

Figure CN117207318B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cement fiberboard, and more specifically, to a performance testing device for high-density cement fiberboard. Background Technology
[0002] Cement fiberboard, also known as fiber cement board or fiber cement pressure board, refers to a board made of cement as the basic material and adhesive, and mineral fiber cement and other fibers as reinforcing materials, through processes such as pulping, molding, and curing. Since its inception, fiber cement board has successfully achieved a balance between imitation and innovation. It is both a substitute for stone and brick textures and a green and environmentally friendly building material with its own characteristics.
[0003] Cement fiberboard can be classified into low-density, medium-density, and high-density according to its density. Low-density fiberboard is generally used for low-end building ceilings and partitions, medium-density fiberboard is generally used for mid-range building partitions and ceilings, and high-density fiberboard is generally used for high-end building steel structure exterior walls and steel structure floors.
[0004] High-density cement fiberboard (HDF) has a larger coefficient of deformation than medium- and low-density boards, making it more prone to deformation. After fabrication, HDF typically requires performance testing to assess its compressive and deformation resistance. Current technology often relies on visual inspection to check for deformation, which is time-consuming, inaccurate, and prone to errors. Therefore, we propose a new HDF fabric and its fabrication process. Summary of the Invention
[0005] The purpose of this application is to simply and accurately monitor the compressive and deformation resistance of high-density cement fiberboard. The deformation detection process is completed using a magnetic deformation detector, which includes a U-shaped support frame. A hydraulic press is fixedly installed on the inner wall of the top of the support frame, and a pressure bar is fixedly connected to the output end of the hydraulic press. A pair of clamping plates are provided on the inner side of the support frame. An L-shaped connecting rod is fixedly connected to the side of the clamping plates near the pressure bar, and a support plate is fixedly connected to the top of the connecting rod. A powder storage box filled with magnetic powder is fixedly connected to the side of the clamping plates near the pressure bar. A magnetic groove is opened on the side of the clamping plates near the pressure bar, and the bottom end of the magnetic groove is flush with the top end of the support plate. An electromagnet is fixedly installed in the magnetic groove. Support boxes are embedded through the outer walls of both sides of the support frame. A drive cylinder is fixedly installed in the support box. The output end of the drive cylinder is connected to the clamping plate through a counterweight connection component. During the test, the operator can determine whether the board is deformed by checking whether there is residual magnetic powder in the magnetic groove, thus enabling simple, efficient, and accurate performance testing of high-density cement fiberboard.
[0006] Optionally, the abutment connection assembly includes a connecting cylinder fixedly connected to the clamping plate. A linkage rod is installed through the outer wall of the connecting cylinder on the side away from the clamping plate. The linkage rod passes through the outer wall of the support box and extends to be fixedly connected to the drive cylinder. The linkage rod is slidably connected to both the connecting cylinder and the outer wall of the support box. A pressure sensor is fixedly installed inside the connecting cylinder. The linkage rod abuts against the pressure sensor. A linkage ring is sleeved on the outer wall of the linkage rod. A detection controller is fixedly installed on the inner wall of the bottom end of the support frame. The detection controller includes a cylinder control module and a pressure analysis module. The pressure sensor is electrically connected to the pressure analysis module, the pressure analysis module is electrically connected to the cylinder control module, and the linkage ring is electrically connected to the drive cylinder. This allows the abutment connection assembly to not only serve as a connection and linkage mechanism but also to prevent the clamping plate from excessively squeezing the sample, causing the clamping plate to deform, thereby further improving the accuracy of the detection.
[0007] Optionally, the surface of the magnetic powder is coated with pigment, the color of which is different from that of the electromagnet and the clamp, making the magnetic powder easy to identify. This helps staff check whether there is any magnetic powder residue in the magnet slot, thus improving convenience.
[0008] Optionally, the detection controller is also equipped with an identification analysis module and a sound feedback module. An identification slot is opened above the magnet slot and connected to it. A color sensor is fixedly installed in the identification slot. The color sensor is electrically connected to the identification analysis module and the identification analysis module is electrically connected to the sound feedback module. The identification color of the color sensor matches the color of the magnetic powder, so that it can automatically detect whether magnetic powder has entered the magnet slot, thereby automatically judging the detection result and feeding it back to the staff.
[0009] Optionally, the detection controller also includes a detection control module, a pressure control module, a magnet control module, and a recognition control module. The detection control module is electrically connected to the pressure control module, the magnet control module, the cylinder control module, and the recognition control module. The pressure control module is electrically connected to the hydraulic press, the magnet control module is electrically connected to the electromagnet, and the recognition control module is electrically connected to the color sensor. This can greatly improve the automation level of the auxiliary connection components, thereby not only greatly reducing the workload of the staff, but also improving the detection efficiency.
[0010] Compared to existing technologies, the advantages of this application are:
[0011] (1) This application enables the magnetic detection device to test the compressive and deformation resistance of high-density cement fiberboard. During the test, the staff can check whether there is magnetic powder left in the magnetic groove to determine whether the board is deformed, and then determine whether the compressive and deformation resistance of the board is qualified. If there is magnetic powder left in the magnetic groove, it means that the performance of the board is unqualified. Conversely, if there is no magnetic powder left in the magnetic groove, it means that the performance of the board is qualified. Thus, the performance test of high-density cement fiberboard can be completed simply, efficiently and accurately, which can greatly improve the accuracy of the performance test.
[0012] (2) By setting up the auxiliary connection component and the detection controller, the auxiliary connection component can not only play a role in connection and linkage, but also prevent the clamping plate from excessively squeezing the sample, causing the clamping plate to deform, thereby further improving the accuracy of detection.
[0013] (3) The surface of the magnetic powder is coated with pigment. The color of the pigment is different from that of the electromagnet and the clamp, making the magnetic powder easy to identify. This helps staff check whether there is any magnetic powder left in the magnet slot, thus improving convenience.
[0014] (4) By setting up the detection controller, identification slot and color sensor, the color sensor, identification analysis module and sound feedback module can work together to automatically detect whether magnetic powder has entered the magnet slot, thereby automatically judging the detection result and feeding it back to the staff, which can not only reduce the workload of the staff, but also further improve the accuracy of the detection.
[0015] (5) By setting the detection controller, the automation level of the auxiliary connection component can be greatly improved, which can not only greatly reduce the workload of the staff, but also improve the detection efficiency. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural schematic diagram of the magnetic detector of this application;
[0017] Figure 2 For this application Figure 1 Enlarged structural diagram at point A;
[0018] Figure 3 This is a front view structural schematic diagram of the magnetic detector of this application;
[0019] Figure 4 This is a cross-sectional structural diagram of the clamping plate in this application;
[0020] Figure 5 For this application Figure 4 Enlarged structural diagram at point B;
[0021] Figure 6 This is a cross-sectional structural diagram of the support box in this application;
[0022] Figure 7 This is a cross-sectional structural diagram of the linkage cylinder in this application;
[0023] Figure 8 This is a pictographic demonstration diagram of the template in this application when the template is not deformed;
[0024] Figure 9 This is a pictographic illustration of the sample being inspected and deformed in this application.
[0025] Figure 10 This is a system structure block diagram of the detection controller of this application;
[0026] Figure 11 This is a process flow diagram of the preparation process of the high-density cement fiberboard of this application.
[0027] Explanation of the labels in the diagram:
[0028] 101. Support frame; 102. Hydraulic press; 103. Pressure bar; 104. Clamping plate; 105. Connecting rod; 106. Support plate; 107. Powder storage box; 108. Magnetic powder; 109. Magnet slot; 110. Electromagnet; 111. Support box; 112. Drive cylinder; 201. Connecting cylinder; 202. Linkage rod; 203. Pressure sensor; 204. Linkage ring; 003. Detection controller; 401. Identification slot; 402. Color sensor. Detailed Implementation
[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. Example
[0030] This application discloses a performance testing device for high-density cement fiberboard. Please refer to [link / reference]. Figure 1-6High-density cement fiberboard is manufactured through processes including slurry preparation, molding and blanking, pattern cutting, reinforcement treatment, and deformation detection. The deformation detection process is completed using a magnetic deformation detector, which includes a U-shaped support frame 101. A hydraulic press 102 is fixedly installed on the inner wall of the top of the support frame 101. A pressure plate bar 103 is fixedly connected to the output end of the hydraulic press 102. A pair of clamping plates 104 are provided on the inner side of the support frame 101. An L-shaped connecting rod 105 is fixedly connected to the side of the clamping plate 104 near the pressure plate bar 103. A support plate is fixedly connected to the top of the connecting rod 105. 106. A powder storage box 107 is fixedly connected to the side of the clamping plate 104 near the pressure bar 103. The powder storage box 107 is filled with magnetic powder 108. A magnet groove 109 is opened on the side of the clamping plate 104 near the pressure bar 103. The bottom end of the magnet groove 109 is flush with the top end of the support plate 106. An electromagnet 110 is fixedly installed in the magnet groove 109. Support boxes 111 are embedded through the outer walls on both sides of the support frame 101. A drive cylinder 112 is fixedly installed in the support box 111. The output end of the drive cylinder 112 is connected to the clamping plate 104 through the abutment connection assembly.
[0031] Please see Figure 1-6 and Figure 8-9 When testing the compressive and deformation resistance of high-density cement fiberboard, a section of high-density cement fiberboard is randomly cut as a sample. The sample is placed on the support plate 106, and the hydraulic press 102 is started, causing the pressure bar 103 to move downward a certain distance, thus applying pressure to the sample. After the pressure is applied, the hydraulic press 102 moves the pressure bar 103 upward to reset it. Then, the drive cylinders 112 are started, causing the two drive cylinders 112 to push the two clamping plates 104 respectively, thus causing the two... The clamping plates 104 abut against the left and right ends of the template. Then, the electromagnet 110 is energized, causing the magnetic powder 108 to move towards the electromagnet 110 under magnetic attraction. After a brief period of energization, the electromagnet 110 is de-energized, causing the magnetic powder 108 to fall back into the powder storage box 107. The template is then removed. The magnetic powder 108 is then checked for residue in the magnet slot 109 by touch or observation. If the template's compressive and deformation resistance is satisfactory, the template will return to its original shape after being compressed. Figure 8 As shown, the two ends of the template are tightly fitted with the two clamping plates 104, so that the magnetic powder 108 can only accumulate at the bottom of the template and cannot enter the magnet groove 109 or be attracted to the electromagnet 110. Under this condition, after the electromagnet 110 is de-energized, no magnetic powder 108 will remain in the magnet groove 109. Conversely, if the template's compressive strength and deformation resistance are unqualified, it cannot completely return to its original shape after being compressed, such as... Figure 9As shown, the template will warp and deform, preventing the two ends of the template from fitting tightly with the two clamps 104, leaving a certain gap. When the electromagnet 110 is energized, some magnetic powder 108 will enter the magnet slot 109 and be attracted to the electromagnet 110. In this case, after the electromagnet 110 is de-energized, some residual magnetic powder 108 will remain in the magnet slot 109. Therefore, by setting up the magnetic detection device, the magnetic detection device can test the compressive and deformation resistance of high-density cement fiberboard. During the test, the staff can check whether the board is deformed by checking whether there is residual magnetic powder 108 in the magnet slot 109, and thus determine whether the board's compressive and deformation resistance is qualified. If there is residual magnetic powder 108 in the magnet slot 109, it means that the board's performance is unqualified; conversely, if there is no residual magnetic powder 108 in the magnet slot 109, it means that the board's performance is qualified. Thus, the performance testing of high-density cement fiberboard can be completed simply, efficiently, and accurately, which can greatly improve the accuracy of performance testing.
[0032] Please see Figure 3 , Figure 6-7 and Figure 10The abutment connection assembly includes a connecting cylinder 201 fixedly connected to the clamping plate 104. A linkage rod 202 is provided through the outer wall of the connecting cylinder 201 on the side away from the clamping plate 104. The linkage rod 202 passes through the outer wall of the support box 111 and extends to be fixedly connected to the drive cylinder 112. The linkage rod 202 is slidably connected to both the connecting cylinder 201 and the outer wall of the support box 111. A pressure sensor 203 is fixedly installed inside the connecting cylinder 201. The linkage rod 202 abuts against the pressure sensor 203. A linkage ring 204 is sleeved on the outer wall of the linkage rod 202. A detection controller 003 is fixedly installed on the inner wall of the bottom end of the support frame 101. The detection controller 003 is equipped with a cylinder control module and a pressure analysis module. The pressure sensor 203 is electrically connected to the pressure analysis module, and the pressure analysis module is electrically connected to the cylinder control module. The linkage ring 204 is electrically connected to the drive cylinder 112. The abutment connection assembly can serve as a connection, enabling... The drive cylinder 112 can push and pull the clamping plate 104 through the auxiliary connecting component. During the process of the drive cylinder 112 pushing the clamping plate 104, the linkage rod 202 will squeeze the pressure sensor 203, so that the pressure sensor 203 detects a certain pressure. The pressure data detected by the pressure sensor 203 will be transmitted to the pressure analysis module. Before the clamping plate 104 comes into contact with the sample, the pressure on the pressure sensor 203 will be relatively small. After the clamping plate 104 comes into contact with the sample, the pressure on the pressure sensor 203 will increase significantly. At this time, the pressure analysis module will feed this information back to the cylinder control module, so that the cylinder control module will shut down the drive cylinder 112. Therefore, through the setting of the auxiliary connecting component and the detection controller 003, the auxiliary connecting component can not only play a role in connection and linkage, but also prevent the clamping plate 104 from excessively squeezing the sample, causing the clamping plate 104 to deform, thereby further improving the accuracy of detection.
[0033] Please see Figure 4 The surface of the magnetic powder 108 is coated with pigment, and the color of the pigment is different from that of the electromagnet 110 and the clamp 104, making the magnetic powder 108 easy to identify. This helps staff check whether there is any magnetic powder 108 remaining in the magnet slot 109, thus improving convenience.
[0034] Please see Figure 10The high-density cement fiberboard detection controller 003 also includes an identification and analysis module and a sound feedback module. An identification slot 401 is connected to the top of the magnet slot 109, and a color sensor 402 is fixedly installed inside the identification slot 401. The color sensor 402 is electrically connected to the identification and analysis module, which in turn is electrically connected to the sound feedback module. The color sensor 402's identification color matches the color of the magnetic powder 108. When the color sensor 402 is activated, it identifies the colors of objects within the magnet slot 109, and the identification result is transmitted to the identification and analysis module. If, after the electromagnet 110 is energized, the sample deforms, causing the magnetic powder 108 to enter the magnet slot 109, the color sensor 402 will detect the color of the magnetic powder. The identification is not based on the color of the magnetic powder 108. After receiving this information, the identification and analysis module sends a command to the sound feedback module, causing the sound feedback module to emit a sound indicating that the sample performance is unqualified. Conversely, if the sample is not deformed, the color sensor 402 cannot complete the identification, and the sound feedback module will emit a sound indicating that the sample performance is qualified. Therefore, through the setting of the detection controller 003, the identification slot 401, and the color sensor 402, the combined action of the color sensor 402, the identification and analysis module, and the sound feedback module can automatically check whether magnetic powder 108 has entered the magnet slot 109, thereby automatically judging the detection result and feeding it back to the staff. This not only reduces the workload of the staff but also further improves the accuracy of the detection.
[0035] Please see Figure 10The detection controller 003 also includes a detection control module, a pressure control module, a magnet control module, and an identification control module. The detection control module is electrically connected to the pressure control module, magnet control module, cylinder control module, and identification control module. The pressure control module is electrically connected to the hydraulic press 102, the magnet control module is electrically connected to the electromagnet 110, and the identification control module is electrically connected to the color sensor 402. This allows the operator to issue a start-of-detection command to the detection control module. Upon receiving the command, the detection control module first sends a command through the pressure control module, causing the pressure control module to control the hydraulic press 102 to drive the pressure bar 103 to apply pressure to the sample. After applying pressure, the detection control module controls the hydraulic press 102 to drive... After the pressure bar 103 is reset, the detection control module sends a command to the cylinder control module, causing the cylinder control module to control the drive cylinder 112 to push the clamping plate 104. Then, the detection control module sends a command to the magnet control module, causing the magnet control module to energize the electromagnet 110. Next, the detection control module sends a command to the recognition control module, causing the recognition control module to activate the color sensor 402, so that the color sensor 402 can start recognition. Then, the sound feedback module will provide feedback on the detection results to the staff. Therefore, by setting the detection controller 003, the automation level of the auxiliary connection component can be greatly improved, which can not only greatly reduce the workload of the staff, but also improve the detection efficiency.
[0036] Please see Figure 11 A process for preparing high-density cement fiberboard includes the following steps:
[0037] S1. Slurry preparation: Pour appropriate amounts of mortar, cement, and wood pulp into a mixer and mix them to obtain fiber cement slurry;
[0038] S2. Molding and blanking: The fiber cement slurry is drained, dried and extruded to obtain the shaped blank.
[0039] S3. Imprinting and cutting: Use a roller to imprint a wood grain pattern on the surface of the blank, and then use a high-pressure water cutter to cut the blank.
[0040] S4. Strengthening treatment: The cut blank is sent into a high temperature and high pressure reactor for heating to harden the blank, thus producing high density cement fiberboard.
[0041] S5. Deformation detection: Randomly select a section of high-density cement fiberboard as a sample, and use a magnetic deformation detection device to test the sample. If the test is qualified, the preparation of high-density cement fiberboard can be completed.
[0042] The above description is merely a preferred embodiment of this application; however, the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and its improved concept, should be covered within the scope of protection of this application.
Claims
1. A performance testing device for high-density cement fiberboard, characterized in that, The deformation detection process is completed using a magnetic deformation detector, which includes a U-shaped support frame (101). A hydraulic press (102) is fixedly installed on the inner wall of the top of the support frame (101). A pressure plate bar (103) is fixedly connected to the output end of the hydraulic press (102). A pair of clamping plates (104) are provided on the inner side of the support frame (101). An L-shaped connecting rod (105) is fixedly connected to the side of the clamping plate (104) near the pressure plate bar (103). A support plate (106) is fixedly connected to the top of the connecting rod (105). The side of the clamping plate (104) near the pressure plate bar (103) is fixedly... A powder storage box (107) is connected, and the powder storage box (107) is filled with magnetic powder (108). A magnetic groove (109) is opened on the side of the clamping plate (104) near the pressure bar (103). The bottom end of the magnetic groove (109) is flush with the top end of the support plate (106). An electromagnet (110) is fixedly installed in the magnetic groove (109). A support box (111) is embedded through the outer walls on both sides of the support frame (101). A drive cylinder (112) is fixedly installed in the support box (111). The output end of the drive cylinder (112) is connected to the clamping plate (104) through the abutment connection assembly. The abutment connection assembly includes a connecting cylinder (201) fixedly connected to the clamping plate (104). A linkage rod (202) is provided through the outer wall of the connecting cylinder (201) on the side away from the clamping plate (104). The linkage rod (202) passes through the outer wall of the support box (111) and extends to be fixedly connected to the drive cylinder (112). The linkage rod (202) is slidably connected to the outer walls of the connecting cylinder (201) and the support box (111). A pressure sensor (203) is fixedly installed inside the connecting cylinder (201). The linkage rod (202) abuts against the pressure sensor (203). A linkage ring (204) is sleeved on the outer wall of the linkage rod (202). A detection controller (003) is fixedly installed on the inner wall of the bottom end of the support frame (101). The detection controller (003) is equipped with a cylinder control module and a pressure analysis module. The pressure sensor (203) is electrically connected to the pressure analysis module. The pressure analysis module is electrically connected to the cylinder control module. The linkage ring (204) is electrically connected to the drive cylinder (112). The detection controller (003) is also equipped with a detection control module, a pressure control module, and a magnet control module. The detection control module is electrically connected to the pressure control module, the magnet control module, and the cylinder control module. The pressure control module is electrically connected to the hydraulic press (102). The magnet control module is electrically connected to the electromagnet (110). The detection controller (003) is also equipped with an identification analysis module and a sound feedback module. An identification slot (401) is opened above the magnet slot (109) and communicates with it. A color sensor (402) is fixedly installed in the identification slot (401).
2. The performance testing device for high-density cement fiberboard according to claim 1, characterized in that, The surface of the magnetic powder (108) is coated with pigment, the color of which is different from that of the electromagnet (110) and the clamp (104).
3. The performance testing device for high-density cement fiberboard according to claim 1, characterized in that, The color sensor (402) is electrically connected to the recognition and analysis module, and the recognition and analysis module is electrically connected to the sound feedback module. The color of the color sensor (402) matches the color of the magnetic powder (108).
4. The performance testing device for high-density cement fiberboard according to claim 1, characterized in that, The detection controller (003) is also provided with an identification control module, which is electrically connected to the identification control module.
Citation Information
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