Equipment for detecting water absorptivity of rock wool board for building

Abstract

The invention discloses building rock wool board water absorbability detection equipment, and relates to the field of building materials, the building rock wool board water absorbability detection equipment comprises: a box filled with clear water; the limiting mechanism comprises a fixed plate fixedly connected to the inner side wall of the box body, a movable plate movably arranged on the outer side of the fixed plate and a plurality of balls embedded in the adjacent faces of the fixed plate and the movable plate in a rolling mode, and a plurality of rectangular holes are formed in the outer side wall of the movable plate; the vibrating mechanism comprises a stirring shaft movably arranged in the box body, a transmission plate fixedly connected to the outer side wall of the stirring shaft, a shifting plate connected to the outer side wall of the transmission plate through a hinge, and a clamping spring of which the outer side walls of the two ends are connected with the transmission plate and the shifting plate respectively. According to the rock wool board water absorption detection equipment for the building, the stirring plate rotates towards the transmission plate, and the stirring plate can impact the rock wool board under the action of the clamping spring, so that bubbles in the rock wool board are removed, and the water absorption rate of the rock wool board is increased.

Description

Technical Field

[0001] The present invention relates to the field of building materials, and particularly to a water absorption detection device for rock wool boards used in buildings. Background Art

[0002] The composite rock wool board is a new type of building thermal insulation material mainly made of natural ore rock wool. After being softened in a high-temperature furnace, it is compounded with other materials such as gelling agents and glass fibers. It has good sound insulation, heat insulation, fire prevention, non-toxic, environmental protection and other advantages, and is widely used in building walls, roofs, floors, aluminum honeycomb composite sandwich panels, fire door core boards and other fields.

[0003] For the existing water absorption detection, generally, a dry composite rock wool board is cut into fixed blocks and weighed, then completely immersed in water for a certain time and weighed again, and the water absorption rate is calculated. After retrieval, the publication (announcement) number: CN214844597U discloses a rock wool water absorption performance detection device, which relates to the technical field of rock wool detection equipment; the technical solution adopted is: a rock wool water absorption performance detection device, including a water tank with an open upper end, and an immersion rack that can move up and down along the height direction of the water tank is arranged at the upper end of the water tank; the immersion rack includes a bottom net plate, and a plurality of rollers are arranged in parallel at the upper end of the bottom net plate. The plurality of rollers are arranged at intervals along the length direction of the water tank, and the axial direction of the rollers is parallel to the width direction of the water tank; a top net plate is arranged above the bottom net plate, and a plurality of rolling parts that can rotate around their own axes are arranged at the lower end of the top net plate. The gap between the bottom net plate and the top net plate is used to accommodate the rock wool board.

[0004] Although the above solution can realize the detection of rock wool boards, when the rock wool board is placed in the net box for water absorption testing, due to the porous structure characteristics of the rock wool board, water molecules will quickly penetrate into the board. During this process, tiny air bubbles in the air will adhere to the surface of the rock wool board. Once these bubbles are formed, they will, to a certain extent, hinder the further uniform absorption of water by the rock wool board, not only slowing down the water absorption speed of the rock wool board, but more importantly, causing deviations in the detection results. Summary of the Invention

[0005] The main purpose of the present invention is to provide a water absorption detection device for rock wool boards used in buildings, by setting a limiting mechanism, a bearing mechanism and a vibration mechanism, to solve the problem that due to the porous structure characteristics of the rock wool board, water molecules will quickly penetrate into the board. During this process, tiny air bubbles in the air will adhere to the surface of the rock wool board, which will, to a certain extent, hinder the further uniform absorption of water by the rock wool board, not only slowing down the water absorption speed of the rock wool board, but more importantly, causing deviations in the detection results.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: A water absorption detection device for rock wool board for construction, comprising: A box body, wherein the interior of the box body is filled with clean water; The limiting mechanism includes a fixed plate fixedly connected to the inner wall of the box body, a movable plate movably arranged outside the fixed plate, and a plurality of balls respectively embedded in adjacent surfaces of the fixed plate and the movable plate, and a plurality of rectangular holes are opened on the outer wall of the movable plate; The bearing mechanism includes a first tooth plate fixedly connected to the bottom of the movable plate, a transmission member connected to the first tooth plate, a second tooth plate linked to the first tooth plate through the transmission member, and a limit frame arranged on the top of the second tooth plate for bearing the rock wool board, wherein the moving distance of the second tooth plate is half of the moving distance of the first tooth plate; The vibration mechanism includes a stirring shaft movably arranged inside the box body, a transmission plate fixedly connected to the outer wall of the stirring shaft, a toggle plate hingedly connected to the outer wall of the transmission plate, and clamping springs respectively connected to the transmission plate and the toggle plate at the outer walls at both ends, wherein the clamping spring can drive the toggle plate to impact the rock wool board.

[0007] Preferably, the limiting mechanism further comprises a slide rail fixedly connected to the top of the fixed plate, and a T-block fixedly connected to the top of the movable plate.

[0008] Preferably, the limiting mechanism further comprises a servo motor fixedly connected to the inner wall of the box body, a screw rod fixedly connected to the output end of the servo motor, and a movable seat movably arranged on the outer wall of the screw rod; The T-block is fixedly connected to the outer side wall of the movable seat through a connecting rod.

[0009] Preferably, the transmission member includes an electric push rod fixedly connected to the top of the second tooth plate, a movable shaft rotatably connected to the inner wall of the box body, and a main gear and a driven gear fixedly connected to the outer wall of the movable shaft. There are two driven gears, and the two driven gears are symmetrically arranged about the mid-vertical plane of the main gear.

[0010] Preferably, the master gear meshes with the first tooth plate, and the two driven gears mesh with the second tooth plate, and the number of teeth of the master gear is twice the number of teeth of the driven gears, so that the moving distance of the second tooth plate is half of the moving distance of the first tooth plate.

[0011] Preferably, the limit frame includes a bottom plate fixedly connected to the output end of the electric push rod, a support rod fixedly connected to the top of the bottom plate, a top plate sleeved on the top of the support rod, and a fixing bolt passing through the top plate and threadedly connected to the support rod.

[0012] Preferably, the limit frame further comprises a receiving groove provided on the outer side wall of the support rod, a driving motor fixedly connected to the inner side wall of the receiving groove, and a push plate fixedly connected to the outer side wall of the output end of the driving motor.

[0013] Preferably, the vibration mechanism further comprises a horizontal electric push rod fixedly connected to the side wall of the box body, a mounting plate fixedly connected to the output end of the horizontal electric push rod, and a stirring motor fixedly connected to the bottom of the mounting plate; The top end of the stirring shaft is fixedly connected to the output end of the stirring motor.

[0014] Preferably, the vibration mechanism further comprises a sliding hole provided on the outer side wall of the mounting plate, and a sliding rod fixedly connected to the side wall of the box body, and the mounting plate slides on the outer surface of the sliding rod through the sliding hole.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the servo motor drives the screw to rotate, thereby driving the movable seat to make a linear motion, thereby driving the movable plate to move, until the outer surface spacing of the balls between the movable plate and the fixed plate matches the thickness of the rock wool board. In this process, the movable plate will drive the first tooth plate to move, thereby driving the main gear meshing therewith to rotate, and then driving the movable shaft and the driven gear to rotate, so that the driven gear drives the second tooth plate to move, thereby ensuring that the electric push rod is always located in the middle of the fixed plate and the movable plate, ensuring that the rock wool board is evenly stressed when moving up and down.

[0016] 2. In the present invention, the electric push rod is started to push the limit frame out of the fixed plate and the movable plate, and then the rock wool board is placed inside the limit frame, and then the top plate is fixed with fixing bolts to achieve the limitation of the rock wool board. Finally, the electric push rod is used to drive the rock wool board to move downward, so that the depth of the rock wool board in the liquid is different, so as to test the difference in water absorption performance of the material when it is immersed in shallow layers such as rainwater or penetrated deeply such as diving and underground engineering.

[0017] 3. In the present invention, the rock wool board is placed inside the limit frame and the top plate is fixed, and then the rock wool board is lowered to a suitable position by an electric push rod, and the stirring shaft is driven to rotate by a stirring motor, thereby driving the transmission plate and the toggle plate to rotate, and the dynamic water flow generated by the stirring generates a vortex, thereby accelerating the escape of air in the pores, thereby increasing the initial water absorption rate, and in this process, the toggle plate will first be against the side of the movable plate, thereby compressing the clamping spring and causing the toggle plate to rotate toward the transmission plate until the toggle plate moves the rectangular hole. At this time, the toggle plate will hit the rock wool board under the action of the clamping spring, thereby removing the bubbles inside the rock wool board and increasing the water absorption rate of the rock wool board.

[0018] 4. In the present invention, the stirring shaft is driven to move by a horizontal electric push rod to adjust the impact force on the rock wool board, and then the push plate is driven to rotate by a driving motor to push the rock wool board to move. In this process, the rock wool board will roll on the outer surface of the ball. The set ball can not only reduce the resistance of the rock wool board during movement, but also reduce the contact area between the rock wool board and the fixed plate, movable plate, bottom plate and top plate, and increase the contact area between the rock wool board and water, thereby improving the water absorption efficiency of the rock wool board. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 For the present invention Figure 3 Back structure diagram; Figure 4 It is a schematic diagram of the internal structure of the fixed plate and the movable plate of the present invention; Figure 5 This is a schematic diagram of the split structure of the limit frame of the present invention; Figure 6 This is a schematic diagram of the internal structure of the support rod of the present invention; Figure 7 It is a schematic diagram of the transmission structure of the present invention.

[0020] In the figure: 1, box body; 201, fixed plate; 202, movable plate; 203, ball bearing; 204, slide rail; 205, T-block; 206, servo motor; 207, lead screw; 208, movable seat; 301, first tooth plate; 302, second tooth plate; 303, electric push rod; 304, limit frame; 3041, bottom plate; 3042, support rod; 3043, top plate; 3044, fixing bolt; 3045, driving motor; 3046, push plate; 305, movable shaft; 306, main gear; 307, driven gear; 401, stirring shaft; 402, transmission plate; 403, toggle plate; 404, clip spring; 405, horizontal electric push rod; 406, mounting plate; 407, stirring motor; 408, slide rod. DETAILED DESCRIPTION

[0021] Embodiment 1 Please refer to Figure 1 - Figure 4 as well as Figure 7 As shown, the present invention is a water absorption detection device for rock wool board for construction, comprising: A box body 1, wherein the interior of the box body 1 is filled with clean water; The limiting mechanism includes a fixed plate 201 fixedly connected to the inner wall of the box body 1, a movable plate 202 movably arranged on the outer side of the fixed plate 201, and a plurality of balls 203 respectively embedded in the adjacent surfaces of the fixed plate 201 and the movable plate 202. The outer wall of the movable plate 202 is provided with a plurality of rectangular holes; The bearing mechanism includes a first tooth plate 301 fixedly connected to the bottom of the movable plate 202, a transmission member connected to the first tooth plate 301, a second tooth plate 302 linked to the first tooth plate 301 through the transmission member, and a limit frame 304 arranged on the top of the second tooth plate 302 for bearing the rock wool board, and the moving distance of the second tooth plate 302 is half of the moving distance of the first tooth plate 301; The vibration mechanism includes a stirring shaft 401 movably arranged inside the box body 1, a transmission plate 402 fixedly connected to the outer wall of the stirring shaft 401, a toggle plate 403 hingedly connected to the outer wall of the transmission plate 402, and a clamping spring 404 connected to the transmission plate 402 and the toggle plate 403 at both ends of the outer wall respectively, and the clamping spring 404 can drive the toggle plate 403 to impact the rock wool board.

[0022] The limiting mechanism also includes a slide rail 204 fixedly connected to the top of the fixed plate 201 and a T-block 205 fixedly connected to the top of the movable plate 202 , wherein the longitudinal section of the T-block 205 matches the longitudinal section of the slide rail 204 , and the T-block 205 slides inside the slide rail 204 .

[0023] The limiting mechanism also includes a servo motor 206 fixedly connected to the inner wall of the box body 1, a screw rod 207 fixedly connected to the output end of the servo motor 206, and a movable seat 208 movably arranged on the outer wall of the screw rod 207; The T-block 205 is fixedly connected to the outer wall of the movable seat 208 through a connecting rod, wherein the overall structure consisting of the T-block 205, the connecting rod and the slide rail 204 has four groups. The servo motor 206 drives the screw rod 207 to rotate, thereby driving the movable seat 208 to make a linear motion, thereby driving the movable plate 202 to move.

[0024] The transmission member includes an electric push rod 303 fixedly connected to the top of the second tooth plate 302, a movable shaft 305 rotatably connected to the inner wall of the box body 1, and a main gear 306 and a driven gear 307 fixedly connected to the outer wall of the movable shaft 305. There are two driven gears 307, and the two driven gears 307 are symmetrically arranged about the mid-vertical plane of the main gear 306. The initial position of the electric push rod 303 is located in the middle of the fixed plate 201 and the movable plate 202.

[0025] The main gear 306 is meshed with the first tooth plate 301, and the two driven gears 307 are meshed with the second tooth plate 302. The number of teeth of the main gear 306 is twice the number of teeth of the driven gear 307, so that the moving distance of the second tooth plate 302 is half of the moving distance of the first tooth plate 301. During the movement of the movable plate 202, the first tooth plate 301 will be driven to move, thereby driving the main gear 306 meshing with it to rotate, and then driving the movable shaft 305 and the driven gear 307 to rotate, so that the driven gear 307 drives the second tooth plate 302 to move, thereby ensuring that the electric push rod 303 is always located in the middle of the fixed plate 201 and the movable plate 202, ensuring that the rock wool board is evenly stressed when moving up and down, and there is no lateral torque, so that it runs smoothly and has a long service life.

[0026] The distance between the fixed plate 201 and the movable plate 202 is adjusted according to the thickness of the rock wool board, that is, the servo motor 206 drives the screw rod 207 to rotate, thereby driving the movable seat 208 to make a linear motion, thereby driving the movable plate 202 to move, until the outer surface spacing of the ball 203 between the movable plate 202 and the fixed plate 201 matches the thickness of the rock wool board. In this process, the movable plate 202 will drive the first tooth plate 301 to move, thereby driving the main gear 306 meshing therewith to rotate, and then driving the movable shaft 305 and the driven gear 307 to rotate, so that the driven gear 307 drives the second tooth plate 302 to move, thereby ensuring that the electric push rod 303 is always located in the middle position between the fixed plate 201 and the movable plate 202.

[0027] Embodiment 2 Please refer to Figure 1 as well as Figure 5 As shown, the present invention is a water absorption detection device for rock wool board for construction, comprising: A box body 1, wherein the interior of the box body 1 is filled with clean water; The limiting mechanism includes a fixed plate 201 fixedly connected to the inner wall of the box body 1, a movable plate 202 movably arranged on the outer side of the fixed plate 201, and a plurality of balls 203 respectively embedded in the adjacent surfaces of the fixed plate 201 and the movable plate 202. The outer wall of the movable plate 202 is provided with a plurality of rectangular holes; The bearing mechanism includes a first tooth plate 301 fixedly connected to the bottom of the movable plate 202, a transmission member connected to the first tooth plate 301, a second tooth plate 302 linked to the first tooth plate 301 through the transmission member, and a limit frame 304 arranged on the top of the second tooth plate 302 for bearing the rock wool board, and the moving distance of the second tooth plate 302 is half of the moving distance of the first tooth plate 301; The vibration mechanism includes a stirring shaft 401 movably arranged inside the box body 1, a transmission plate 402 fixedly connected to the outer wall of the stirring shaft 401, a toggle plate 403 hingedly connected to the outer wall of the transmission plate 402, and a clamping spring 404 connected to the transmission plate 402 and the toggle plate 403 at both ends of the outer wall respectively, and the clamping spring 404 can drive the toggle plate 403 to impact the rock wool board.

[0028] The limit frame 304 includes a bottom plate 3041 fixedly connected to the output end of the electric push rod 303, a support rod 3042 fixedly connected to the top of the bottom plate 3041, a top plate 3043 sleeved on the top of the support rod 3042, and a fixing bolt 3044 that passes through the top plate 3043 and is threadedly connected to the support rod 3042, wherein a positioning groove matching the support rod 3042 is provided at the bottom of the top plate 3043, and the fixing bolt 3044 is quickly installed through the cooperation between the positioning groove and the support rod 3042, wherein the opposite surfaces of the bottom plate 3041 and the top plate 3043 are both rolled and inlaid with balls 203.

[0029] By starting the electric push rod 303, the limit frame 304 is pushed out of the fixed plate 201 and the movable plate 202, and then the rock wool board is placed inside the limit frame 304, and then the top plate 3043 is fixed with the fixing bolts 3044 to limit the position of the rock wool board. Finally, the electric push rod 303 is used to drive the rock wool board downward, so that the depth of the rock wool board in the liquid is different, so as to test the difference in water absorption performance of the material when it is immersed in shallow layers such as rainwater or penetrated deeply such as diving and underground engineering.

[0030] Embodiment 3 Please refer to Figure 1 - Figure 7 As shown, the present invention is a water absorption detection device for rock wool board for construction, comprising: A box body 1, wherein the interior of the box body 1 is filled with clean water; The limiting mechanism includes a fixed plate 201 fixedly connected to the inner wall of the box body 1, a movable plate 202 movably arranged on the outer side of the fixed plate 201, and a plurality of balls 203 respectively embedded in the adjacent surfaces of the fixed plate 201 and the movable plate 202. The outer wall of the movable plate 202 is provided with a plurality of rectangular holes; The bearing mechanism includes a first tooth plate 301 fixedly connected to the bottom of the movable plate 202, a transmission member connected to the first tooth plate 301, a second tooth plate 302 linked to the first tooth plate 301 through the transmission member, and a limit frame 304 arranged on the top of the second tooth plate 302 for bearing the rock wool board, and the moving distance of the second tooth plate 302 is half of the moving distance of the first tooth plate 301; The vibration mechanism includes a stirring shaft 401 movably arranged inside the box body 1, a transmission plate 402 fixedly connected to the outer wall of the stirring shaft 401, a toggle plate 403 hingedly connected to the outer wall of the transmission plate 402, and a clamping spring 404 connected to the transmission plate 402 and the toggle plate 403 at both ends of the outer wall respectively, and the clamping spring 404 can drive the toggle plate 403 to impact the rock wool board.

[0031] The limit frame 304 also includes a storage groove opened on the outer wall of the support rod 3042, a driving motor 3045 fixedly connected to the inner wall of the storage groove, and a push plate 3046 fixedly connected to the outer wall of the output end of the driving motor 3045. The rock wool board is placed inside the limit frame 304 and then the top plate 3043 is fixed with the fixing bolts 3044 to limit the position of the rock wool board. Then, the push plate 3046 is driven to rotate by the driving motor 3045, thereby pushing the rock wool board to move. During this process, the rock wool board will roll on the outer surface of the ball 203. The set ball 203 can not only reduce the resistance of the rock wool board during movement, but also reduce the contact area between the rock wool board and the bottom plate 3041 and the top plate 3043, and increase the contact area between the rock wool board and water, thereby improving the water absorption efficiency of the rock wool board.

[0032] The vibration mechanism also includes a horizontal electric push rod 405 fixedly connected to the side wall of the box body 1, a mounting plate 406 fixedly connected to the output end of the horizontal electric push rod 405, and a stirring motor 407 fixedly connected to the bottom of the mounting plate 406; The top end of the stirring shaft 401 is fixedly connected to the output end of the stirring motor 407, and the stirring shaft 401 is driven to rotate by the stirring motor 407, thereby driving the transmission plate 402 and the toggle plate 403 to rotate. During this process, the toggle plate 403 will first abut against the side of the movable plate 202, thereby compressing the clamping spring 404 and causing the toggle plate 403 to rotate toward the transmission plate 402 until the toggle plate 403 moves the rectangular hole. At this time, the toggle plate 403 will, under the action of the clamping spring 404, hit the rock wool board to remove the bubbles inside the rock wool board, wherein the stirring shaft 401 is driven to move by the horizontal electric push rod 405 to adjust the impact force on the rock wool board.

[0033] The vibration mechanism also includes a sliding hole opened on the outer wall of the mounting plate 406, and a sliding rod 408 fixedly connected to the side wall of the box body 1. The mounting plate 406 slides on the outer surface of the sliding rod 408 through the sliding hole, and the sliding rod 408 is used to improve the stability of the mounting plate 406 when moving.

[0034] By placing the rock wool board inside the limit frame 304 and fixing the top plate 3043, the rock wool board is then lowered to a suitable position by the electric push rod 303, and the stirring shaft 401 is driven to rotate by the stirring motor 407, thereby driving the transmission plate 402 and the toggle plate 403 to rotate, and the dynamic water flow generated by the stirring generates a vortex, thereby accelerating the escape of air in the pores, thereby increasing the initial water absorption speed, and in this process, the toggle plate 403 will first abut against the side of the movable plate 202, thereby compressing the clamp spring 404, and causing the toggle plate 403 to rotate in the direction of the transmission plate 402 until the toggle plate 403 moves the rectangular hole. At this time, the toggle plate 403 Under the action of the clamp spring 404, the rock wool board will be hit to remove the bubbles inside the rock wool board. The stirring shaft 401 is driven to move by the horizontal electric push rod 405 to adjust the impact force on the rock wool board. Then, the push plate 3046 is driven to rotate by the driving motor 3045 to push the rock wool board to move. In this process, the rock wool board will roll on the outer surface of the ball 203. The set ball 203 can not only reduce the resistance of the rock wool board when it moves, but also reduce the contact area between the rock wool board and the fixed plate 201, the movable plate 202, the bottom plate 3041 and the top plate 3043, and increase the contact area between the rock wool board and water, so as to improve the water absorption efficiency of the rock wool board; First, dry the sample in an oven at 105±5℃ to constant weight (weigh every 24 hours, and the mass change should not exceed 0.1%), and record the dry mass m0. When the water absorption is completed, take the sample out of the water and let it stand vertically for 1 to 2 minutes to allow the free water on the surface to flow naturally. Then, use a wet lint-free cloth or filter paper to gently stroke the surface in one direction, focusing on wiping the water on the edges and corners of the sample; then weigh it immediately after wiping to obtain the wet weight m1, and finally use the formula to obtain the mass water absorption rate (W m ):

Claims

1. A water absorption detection device for rock wool board for construction, characterized in that: include: A box body (1), the interior of the box body (1) is filled with clean water; A limiting mechanism, the limiting mechanism comprising a fixed plate (201) fixedly connected to the inner side wall of the box body (1), a movable plate (202) movably arranged on the outer side of the fixed plate (201), and a plurality of balls (203) respectively embedded in rolling manner on adjacent surfaces of the fixed plate (201) and the movable plate (202), wherein the outer side wall of the movable plate (202) is provided with a plurality of rectangular holes; A bearing mechanism, the bearing mechanism comprising a first tooth plate (301) fixedly connected to the bottom of the movable plate (202), a transmission member drivingly connected to the first tooth plate (301), a second tooth plate (302) linked to the first tooth plate (301) via the transmission member, and a limit frame (304) arranged on the top of the second tooth plate (302) for bearing the rock wool board, wherein the moving distance of the second tooth plate (302) is half of the moving distance of the first tooth plate (301); The vibration mechanism comprises a stirring shaft (401) movably arranged inside the box (1), a transmission plate (402) fixedly connected to the outer wall of the stirring shaft (401), a toggle plate (403) hingedly connected to the outer wall of the transmission plate (402), and a clamping spring (404) connected to the transmission plate (402) and the toggle plate (403) at both ends of the outer wall respectively, wherein the clamping spring (404) can drive the toggle plate (403) to impact the rock wool board.

2. The water absorption detection device for rock wool board for construction according to claim 1 is characterized by: The limiting mechanism further comprises a slide rail (204) fixedly connected to the top of the fixed plate (201), and a T-shaped block (205) fixedly connected to the top of the movable plate (202).

3. The water absorption detection device for rock wool board for construction according to claim 2 is characterized in that: The limiting mechanism further comprises a servo motor (206) fixedly connected to the inner wall of the box body (1), a screw rod (207) fixedly connected to the output end of the servo motor (206), and a movable seat (208) movably arranged on the outer wall of the screw rod (207); The T-shaped block (205) is fixedly connected to the outer side wall of the movable seat (208) via a connecting rod.

4. The water absorption detection device for rock wool board for construction according to claim 1 is characterized in that: The transmission member comprises an electric push rod (303) fixedly connected to the top of the second tooth plate (302), a movable shaft (305) rotatably connected to the inner wall of the box body (1), and a main gear (306) and a driven gear (307) fixedly connected to the outer wall of the movable shaft (305), wherein there are two driven gears (307), and the two driven gears (307) are symmetrically arranged with respect to the mid-vertical plane of the main gear (306).

5. The water absorption detection device for rock wool board for construction according to claim 4 is characterized by: The main gear (306) meshes with the first tooth plate (301), and the two driven gears (307) mesh with the second tooth plate (302). The number of teeth of the main gear (306) is twice the number of teeth of the driven gear (307), so that the moving distance of the second tooth plate (302) is half of the moving distance of the first tooth plate (301).

6. The water absorption detection device for rock wool board for construction according to claim 1 is characterized by: The limit frame (304) comprises a bottom plate (3041) fixedly connected to the output end of the electric push rod (303), a support rod (3042) fixedly connected to the top of the bottom plate (3041), a top plate (3043) sleeved on the top of the support rod (3042), and a fixing bolt (3044) penetrating the top plate (3043) and threadedly connected to the support rod (3042).

7. The water absorption detection device for rock wool board for construction according to claim 6 is characterized by: The limiting frame (304) further comprises a storage groove formed on the outer side wall of the support rod (3042), a driving motor (3045) fixedly connected to the inner side wall of the storage groove, and a push plate (3046) fixedly connected to the outer side wall of the output end of the driving motor (3045).

8. The water absorption detection device for rock wool board for construction according to claim 4 is characterized by: The vibration mechanism further comprises a horizontal electric push rod (405) fixedly connected to the side wall of the box body (1), a mounting plate (406) fixedly connected to the output end of the horizontal electric push rod (405), and a stirring motor (407) fixedly connected to the bottom of the mounting plate (406); The top end of the stirring shaft (401) is fixedly connected to the output end of the stirring motor (407).

9. The water absorption detection device for rock wool board for construction according to claim 8 is characterized by: The vibration mechanism further comprises a sliding hole formed on the outer wall of the mounting plate (406), and a sliding rod (408) fixedly connected to the side wall of the box body (1); the mounting plate (406) slides on the outer surface of the sliding rod (408) through the sliding hole.

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