Defect detection device and method for low-formaldehyde furniture impregnated bond paper

Abstract

The invention discloses a defect detection device and method for low-formaldehyde furniture impregnated bond paper, and relates to the technical field of defect detection.The defect detection device comprises an operation table and a bottom frame, a detection hole is formed in the position, located over the bottom frame, of the operation table, and a partition detection mechanism is arranged at the position, located at the detection hole, of the operation table. According to the defect detection device and method for the low-formaldehyde furniture impregnated bond paper, the impregnated bond paper slides to the position below the detection hole on the sliding roller, the impregnated bond paper between the partition frames is separated from the impregnated bond paper outside the partition frames, and the impregnated bond paper between the partition frames is in a downward pressing state; the second hydraulic cylinder is adjusted to drive a bearing arc piece on the lifting frame to make contact with the impregnated bond paper and support the impregnated bond paper, so that quality detection is conducted on the part of the impregnated bond paper, the detection method does not need continuous cutting of the impregnated bond paper, material loss is reduced, and the effect of real-time adjustment can be achieved according to the detection length of the impregnated bond paper.

Description

Technical Field

[0001] This invention relates to the field of defect detection technology, and in particular to a defect detection device and method for low-formaldehyde furniture impregnated paper. Background Technology

[0002] Defect detection of impregnated paper is a crucial quality control step in the impregnated paper production process. The quality of the impregnated paper directly determines the surface aesthetics, durability, and value of the final decorative panel. During the production process, uneven paper weight leads to weight differences in the produced impregnated paper, affecting the final decorative thickness and performance. Therefore, multiple sets of quality tests are required.

[0003] Existing defect detection devices for low-formaldehyde furniture impregnated paper require cutting during use to ensure that the sampled impregnated paper is of the same length. After the test, the cut impregnated paper is discarded, resulting in material waste. Furthermore, if the quality test is performed on impregnated paper of different lengths, it needs to be cut again, further increasing material waste and reducing the value of the defect detection device. Summary of the Invention

[0004] This invention discloses a defect detection device for low-formaldehyde furniture impregnated paper, aiming to solve the technical problem that existing defect detection devices for low-formaldehyde furniture impregnated paper require cutting to ensure that the sampled impregnated paper is of the same length during use. The cut impregnated paper is discarded after testing, which causes material loss. Furthermore, if the quality of impregnated paper of different lengths is to be tested, it needs to be recut, further increasing material loss.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A defect detection device for low-formaldehyde furniture impregnated paper includes an operating table and a base frame. The operating table has a detection hole directly above the base frame, and a partition detection mechanism is installed at the detection hole. The partition detection mechanism includes two partition frames, and an adjusting groove is formed on the top of the operating table below each partition frame. An adjusting slider is slidably connected inside each adjusting groove. The partition frames are fixedly connected to the top of adjacent adjusting sliders. End blocks are fixedly connected to both ends of the operating table on the side away from the partition frames. A hydraulic cylinder is fixedly connected to the side of each end block facing the partition frame. The output end of the hydraulic cylinder is fixedly connected to one side of an adjacent partition frame. Electric telescopic rods are fixedly connected at equal intervals to the top of each partition frame, and the output ends of multiple electric telescopic rods are fixedly connected to the same lifting plate. Partition pressure plates are fixedly connected at equal intervals to the bottom of the lifting plate.

[0007] In a preferred embodiment, a weighing device is installed on the base frame below the detection hole, and two limiting slide rails are fixedly connected to the base frame around the weighing device. A limiting slider is slidably connected inside each of the two limiting slide rails. A connecting rod is fixedly connected to the top of each limiting slider, and the ends of the two connecting rods are fixedly connected to the same pressure plate, which is in contact with the weighing device.

[0008] In a preferred embodiment, two hydraulic cylinders are symmetrically distributed on the top of the pressure plate, and the output ends of the two hydraulic cylinders are fixedly connected to the same lifting frame, on which load-bearing arc plates are fixedly connected at equal intervals.

[0009] In a preferred embodiment, the operating table is fixedly connected to two side rods on both sides of the detection hole, and the ends of multiple side rods are fixedly connected to the same arc-shaped pressure plate, with air blowing holes opened on the downward-facing arc surface of the arc-shaped pressure plate.

[0010] In a preferred embodiment, a pump frame is fixedly connected to the top of the arc-shaped pressure plate, and an air pump is fixedly connected inside the pump frame. Mounting rods are fixedly connected to the top of both ends of the pump frame, and the same air filter is fixedly connected to the top of the two mounting rods. The air inlet of the air pump is located inside the air filter, and an air guide pipe is fixedly connected to the air outlet of the air pump. A main pipe is fixedly connected to the open end of the air guide pipe. Diversion holes are evenly spaced on the downward-facing side of the main pipe, and a diversion pipe is fixedly connected inside each diversion hole. One end of the diversion pipe is inserted into the interior of the arc-shaped pressure plate.

[0011] In a preferred embodiment, contact plates are fixedly connected to both sides of the two partition frames, and a scale plate is fixedly connected to the top of the operating table located below each contact plate, with the contact plate in contact with the adjacent scale plate.

[0012] In a preferred embodiment, the top of the base frame is provided with support columns arranged in a ring, and the top of each support column is fixedly connected to the bottom of the operating table. The top of the operating table near the detection hole is provided with mounting grooves, and the inner walls on both sides of the two mounting grooves are connected to sliding rollers at equal distances via bearings. The inner walls on both sides of the detection hole near the sliding rollers are fixedly connected with semi-circular guide rods.

[0013] In a preferred embodiment, the top two ends of the operating table away from the detection hole are provided with detection auxiliary mechanisms, and the detection auxiliary mechanisms include two fixed plates. The two fixed plates are fixedly connected to the top of the operating table and are located between two adjacent adjusting slides. Two guide rollers are connected to the opposite side of the two fixed plates near the bottom end through bearings.

[0014] In a preferred embodiment, two lifting grooves are opened on opposite sides of the two fixed plates, and the same lifting slider is slidably connected inside the two lifting grooves on the same fixed plate. End rings are fixedly connected to opposite sides of the two lifting sliders. The same tension roller is connected to opposite sides of the two end rings through bearings. The same mating roller is connected to opposite sides of the two end rings located below the tension roller through bearings. Both end rings have communicating cavities. The tension roller and the mating roller are connected to the end rings. Adsorption holes are opened on both the tension roller and the mating roller. Top ring frames are fixedly connected to the top of the two fixed plates. Hydraulic cylinders are fixedly connected to the top ring frames. The output end of the hydraulic cylinders is fixedly connected to the top of the adjacent lifting sliders. A support plate is fixedly connected to one side of one of the fixed plates. A collection box is fixedly connected to the top of the support plate. An adsorption pump is fixedly connected to the top of the collection box. A telescopic extraction tube is fixedly connected to the adsorption end of the adsorption pump. One end of the telescopic extraction tube is inserted into the inside of the adjacent end ring. The delivery end of the adsorption pump is connected to the inside of the collection box through a pipe.

[0015] A method for detecting defects in low-formaldehyde furniture impregnated paper, using a defect detection device for low-formaldehyde furniture impregnated paper as described above, includes the following steps:

[0016] Step 1: First, pass the impregnated paper through the two guide rollers, the mating roller, and the tension roller. Before the partition plate in the partition frame positions and presses the impregnated paper, adjust the hydraulic cylinder three to drive the tension roller and the mating roller to rise, thereby straightening the impregnated paper. At the same time, as the impregnated paper moves between the mating roller and the tension roller, start the adsorption pump. The adsorption pump collects the impurities attached to the impregnated paper through the adsorption holes on the mating roller and the tension roller.

[0017] Step 2: After the impregnated film paper passes between the two partition frames, the hydraulic cylinder is adjusted to move the partition frame according to the single detection length. The scale plate monitors the length in real time. When the partition frame moves to the specified distance, the electric telescopic rod is adjusted to drive the partition pressure plates under the lifting plate to press the impregnated film paper at different points to achieve the positioning of the impregnated film paper in a single detection.

[0018] Step 3: After the impregnated paper is positioned, adjust hydraulic cylinder one again to move the impregnated paper between the two partition frames toward the detection hole in the middle of the operating table. The impregnated paper slides on the sliding roller to below the detection hole, separating the impregnated paper between the partition frames from the impregnated paper outside the partition frames. The impregnated paper between the partition frames is in a downward pressure state. Adjust hydraulic cylinder two to move the bearing arc plate on the lifting frame to contact and support the impregnated paper. Start the air pump, which introduces the air filtered through the air filter into the arc-shaped pressure plate and blows it out through the air blowing hole. The blowing of the air accelerates the impregnated paper between the two partition frames to flow downward. At the same time, the compression of the air makes the impregnated paper better adhere to the bearing arc plate. The weighing device below measures the mass of the impregnated paper in this test. After multiple sets of measurements are performed on the same length of impregnated paper, the data of each set are compared to determine whether there are any defects in its quality.

[0019] As can be seen from the above, the defect detection device for low-formaldehyde furniture impregnated paper provided by the present invention has the following functions: when performing quality inspection of impregnated paper, it passes through two partition frames. According to the single inspection length, the hydraulic cylinder is adjusted to drive the partition frames to move, and the scale plate monitors the length in real time. When the partition frames move to the specified distance, the electric telescopic rod is adjusted to drive the partition pressure plates under the lifting plate to press the impregnated paper at different points. The hydraulic cylinder is adjusted again to drive the impregnated paper between the two partition frames towards the center of the operating table. The detection hole moves, and the impregnated paper slides on the sliding roller to below the detection hole, separating the impregnated paper between the partition frames from the impregnated paper outside the partition frames. The impregnated paper between the partition frames is in a downward pressure state. The second hydraulic cylinder drives the bearing arc plate on the lifting frame to contact and support the impregnated paper, thereby performing quality inspection on this part of the impregnated paper. This inspection method eliminates the need for continuous cutting of the impregnated paper, reducing material waste, and also provides the technical advantage of real-time adjustment according to the inspection length of the impregnated paper. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a defect detection device for low-formaldehyde furniture impregnated adhesive film paper proposed in this invention.

[0021] Figure 2 This is a front view of the overall structure of a defect detection device for low-formaldehyde furniture impregnated paper proposed in this invention.

[0022] Figure 3 This is a bottom view of the operating table structure of a defect detection device for low-formaldehyde furniture impregnated paper proposed in this invention.

[0023] Figure 4 This is a schematic diagram of the combined structure of the operating table and partition detection mechanism of a defect detection device for low-formaldehyde furniture impregnated adhesive film paper proposed in this invention.

[0024] Figure 5 This is a schematic diagram of the partition detection mechanism of a defect detection device for low-formaldehyde furniture impregnated adhesive film paper proposed in this invention.

[0025] Figure 6 This is a schematic diagram of the combined structure of an arc-shaped pressure plate, a limiting slide rail, a pressure plate, and a bearing arc plate for a defect detection device for low-formaldehyde furniture impregnated paper proposed in this invention.

[0026] Figure 7 This is a structurally exploded view of the lifting plate and partition frame of a defect detection device for low-formaldehyde furniture impregnated paper, as proposed in this invention.

[0027] Figure 8 This is a schematic diagram of the auxiliary mechanism for a defect detection device for low-formaldehyde furniture impregnated adhesive film paper proposed in this invention.

[0028] Figure 9 for Figure 8 Enlarged view of the structure of part A in the middle.

[0029] Figure 10 for Figure 8 Cross-sectional view of the combined structure of the medium tension roller, the mating roller, and the end ring.

[0030] In the diagram: 1. Operating table; 2. Partition detection mechanism; 201. Arc-shaped pressure plate; 202. Air filter cover; 203. Pressure plate; 204. Limiting slide rail; 205. Air blowing hole; 206. Adjusting slider; 207. Partition frame; 208. Adjusting slide groove; 209. Side rod; 210. Hydraulic cylinder one; 211. End block; 212. Connecting rod; 213. Main tube; 214. Electric telescopic rod; 215. Bearing arc plate; 216. Hydraulic cylinder two; 217. Air guide pipe; 218. Pump frame; 219. Air pump; 220. Partition pressure plate; 221. Mounting rod; 222. Limiting slider; 223. 1. Lifting frame; 224. Diverter pipe; 225. Lifting plate; 3. Detection auxiliary mechanism; 301. Fixing plate; 302. Guide roller; 303. Support plate; 304. Collection box; 305. Tension roller; 306. Matching roller; 307. Top ring frame; 308. Hydraulic cylinder three; 309. Telescopic extraction pipe; 310. Adsorption pump; 311. Lifting slider; 312. Lifting chute; 313. End ring; 314. Adsorption hole; 315. Connecting cavity; 4. Support column; 5. Weighing device; 6. Base frame; 7. Scale plate; 8. Contact piece; 9. Mounting groove; 10. Semi-circular guide rod; 11. Sliding roller. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0032] The present invention discloses a defect detection device for low-formaldehyde furniture impregnated paper. It is mainly applied to the existing defect detection devices for low-formaldehyde furniture impregnated paper. In order to ensure that the impregnated paper samples taken for testing are of the same length, they need to be cut. The cut impregnated paper is discarded after testing, which will cause material loss. At the same time, if the quality test is carried out on impregnated paper of different lengths, it needs to be cut again, further increasing the scenario of material loss.

[0033] Reference Figures 1-10 A defect detection device for low-formaldehyde furniture impregnated paper includes an operating table 1 and a base frame 6. The operating table 1 has a detection hole directly above the base frame 6, and a partition detection mechanism 2 is installed at the detection hole on the operating table 1. The partition detection mechanism 2 includes two partition frames 207, and an adjusting groove 208 is opened on the top of the operating table 1 below each partition frame 207. An adjusting slider 206 is slidably connected inside each adjusting groove 208. The partition frames 207 are fixedly connected to the top of adjacent adjusting sliders 206. Both ends of the worktable 1 away from the partition frame 207 are fixedly connected to end blocks 211. The side of the end blocks 211 facing the partition frame 207 is fixedly connected to a hydraulic cylinder 210. The output end of the hydraulic cylinder 210 is fixedly connected to one side of the adjacent partition frame 207. The top of the partition frame 207 is fixedly connected to electric telescopic rods 214 at equal intervals. The output ends of multiple electric telescopic rods 214 located below are fixedly connected to the same lifting plate 225. The bottom of the lifting plate 225 is fixedly connected to partition pressure plates 220 at equal intervals.

[0034] In specific application scenarios, when inspecting the quality of impregnated paper, it is passed through two partition frames 207. Based on the single inspection length, hydraulic cylinder 210 is adjusted to move the partition frames 207. The scale plate 7 monitors the length in real time. When the partition frames 207 have moved to the specified distance, the electric telescopic rod 214 is adjusted to move the partition pressure plates 220 below the lifting plate 225 to press the impregnated paper at specific points. After the impregnated paper is positioned, hydraulic cylinder 210 is adjusted again to move the impregnated paper between the two partition frames 207 towards the inspection hole in the middle of the operating table 1. The impregnated adhesive film slides on the sliding roller 11 to below the detection hole, separating the impregnated adhesive film between the partition frames 207 from the impregnated adhesive film outside the partition frames 207. The impregnated adhesive film between the partition frames 207 is in a downward pressure state. The hydraulic cylinder 216 is adjusted to drive the bearing arc plate 215 on the lifting frame 223 to contact and support the impregnated adhesive film, thereby performing quality inspection on this part of the impregnated adhesive film. This inspection method does not require continuous cutting of the impregnated adhesive film, reducing material waste, and can be adjusted in real time according to the detection length of the impregnated adhesive film, improving the use value of the defect detection device.

[0035] Specifically, during the process of the partition frame 207 moving above the semi-circular guide rod 10, the air pump 219 is activated. The air pump 219 introduces the gas filtered through the air filter cover 202 into the arc-shaped pressure plate 201 and blows it out through the air blowing hole 205. The blowing of the gas accelerates the downward flow of the impregnated film paper between the two partition frames 207. At the same time, the compression of the gas makes the impregnated film paper better adhere to the supporting arc plate 215, improving the accuracy of the impregnated film paper quality test results.

[0036] It should be noted that when performing quality defect detection on the impregnated film paper, there is no need to cut the impregnated film paper. When it is necessary to change the length, simply adjust the initial distance between the two partition frames 207 of the straightened impregnated film paper. This is convenient, efficient, and reduces the waste of impregnated film paper.

[0037] Reference Figures 1-7 In a preferred embodiment, a weighing device 5 is provided on the base frame 6 below the detection hole, and two limiting slide rails 204 are fixedly connected to the base frame 6 around the weighing device 5. A limiting slider 222 is slidably connected inside the two limiting slide rails 204. A connecting rod 212 is fixedly connected to the top of the two limiting sliders 222. The ends of the two connecting rods 212 are fixedly connected to the same pressure plate 203, and the pressure plate 203 is in contact with the weighing device 5.

[0038] Reference Figure 5 and Figure 6In a preferred embodiment, two hydraulic cylinders 216 are symmetrically distributed on the top of the pressure plate 203, and the output ends of the two hydraulic cylinders 216 are fixedly connected to the same lifting frame 223. Bearing arc plates 215 are fixedly connected at equal intervals on the lifting frame 223.

[0039] Reference Figure 5 and Figure 6 In a preferred embodiment, the operating table 1 is fixedly connected to two side rods 209 on both sides of the detection hole, and the ends of the multiple side rods 209 are fixedly connected to the same arc-shaped pressure plate 201. The arc-shaped pressure plate 201 has air blowing holes 205 on its downward-facing arc surface.

[0040] Reference Figure 6 In a preferred embodiment, a pump frame 218 is fixedly connected to the top of the arc-shaped pressure plate 201, and an air pump 219 is fixedly connected inside the pump frame 218. Mounting rods 221 are fixedly connected to the top of both ends of the pump frame 218 at the air pump 219. The same air filter cover 202 is fixedly connected to the top of the two mounting rods 221. The air inlet end of the air pump 219 is located inside the air filter cover 202. An air delivery end of the air pump 219 is fixedly connected to an air guide pipe 217. A main length pipe 213 is fixedly connected to the open end of the air guide pipe 217. The main length pipe 213 has diversion holes at equal intervals facing downward. A diversion pipe 224 is fixedly connected inside each diversion hole. One end of the diversion pipe 224 is inserted into the interior of the arc-shaped pressure plate 201.

[0041] Reference Figure 1 and Figure 7 In a preferred embodiment, contact pieces 8 are fixedly connected to both sides of the two partition frames 207, and a scale plate 7 is fixedly connected to the top of the operating table 1 located below each contact piece 8, with the contact piece 8 in contact with the adjacent scale plate 7.

[0042] Reference Figures 1-3 In a preferred embodiment, the top of the base frame 6 is provided with support columns 4 arranged in a ring, and the top of each support column 4 is fixedly connected to the bottom of the operating table 1. The top of the operating table 1 near the detection hole is provided with mounting grooves 9. The inner walls on both sides of the two mounting grooves 9 are connected to sliding rollers 11 at equal distances via bearings. The inner walls on both sides of the detection hole near the sliding rollers 11 are fixedly connected with semi-circular guide rods 10.

[0043] Reference Figure 1 , Figure 2 , Figure 8 , Figure 9 and Figure 10In a preferred embodiment, the top two ends of the operating table 1 away from the detection hole are provided with detection auxiliary mechanisms 3, and the detection auxiliary mechanism 3 includes two fixing plates 301. The two fixing plates 301 are fixedly connected to the top of the operating table 1. The fixing plates 301 are located between two adjacent adjusting slides 208. Two guide rollers 302 are connected to the opposite side of the two fixing plates 301 near the bottom end through bearings.

[0044] Specifically, during the movement of the impregnated paper, it passes between the two guide rollers 302, the mating roller 306, and the tension roller 305. Before the partition plate 220 in the partition frame 207 positions and presses the impregnated paper, the hydraulic cylinder 308 is adjusted to drive the tension roller 305 and the mating roller 306 to rise, thereby straightening the impregnated paper and preventing deviations in the length of the impregnated paper due to local bending, thus ensuring the accuracy of the final test results.

[0045] It should be noted that when the impregnated paper moves between the mating roller 306 and the tension roller 305, the adsorption pump 310 is activated. The adsorption pump 310 collects the impurities attached to the impregnated paper through the adsorption holes 314 on the mating roller 306 and the tension roller 305, so that the surface of the impregnated paper that moves between the two partition frames 207 is free of impurities and avoids errors in quality inspection results caused by the presence of particulate impurities.

[0046] Reference Figures 8-10 In a preferred embodiment, two lifting grooves 312 are provided on opposite sides of the two fixed plates 301, and the same lifting slider 311 is slidably connected inside the two lifting grooves 312 located on the same fixed plate 301. An end ring 313 is fixedly connected to opposite sides of the two lifting sliders 311. A tension roller 305 is connected to opposite sides of the two end rings 313 via bearings. A mating roller 306 is connected to opposite sides of the two end rings 313 located below the tension roller 305 via bearings. A communicating cavity 315 is provided on each of the two end rings 313. Both the tension roller 305 and the mating roller 306 communicate with the end rings 313. Each of the six plates has an adsorption hole 314. The top of each of the two fixed plates 301 is fixedly connected to a top ring frame 307. A hydraulic cylinder 308 is fixedly connected to each of the two top ring frames 307. The output end of the hydraulic cylinder 308 is fixedly connected to the top of the adjacent lifting slider 311. A support plate 303 is fixedly connected to one side of one of the fixed plates 301. A collection box 304 is fixedly connected to the top of the support plate 303. An adsorption pump 310 is fixedly connected to the top of the collection box 304. A telescopic extraction tube 309 is fixedly connected to the adsorption end of the adsorption pump 310. One end of the telescopic extraction tube 309 is inserted into the interior of the adjacent end ring 313. The delivery end of the adsorption pump 310 is connected to the interior of the collection box 304 through a pipe.

[0047] A method for detecting defects in low-formaldehyde furniture impregnated paper, using a defect detection device for low-formaldehyde furniture impregnated paper as described above, includes the following steps:

[0048] Step 1: First, the impregnated film paper is passed between the two guide rollers 302, the mating roller 306 and the tension roller 305. Before the partition plate 220 in the partition frame 207 positions and presses the impregnated film paper, the hydraulic cylinder 308 is adjusted to drive the tension roller 305 and the mating roller 306 to rise, thereby straightening the impregnated film paper. At the same time, as the impregnated film paper moves between the mating roller 306 and the tension roller 305, the adsorption pump 310 is started. The adsorption pump 310 collects the impurities attached to the impregnated film paper through the adsorption holes 314 on the mating roller 306 and the tension roller 305.

[0049] Step 2: After the impregnated film paper passes between the two partition frames 207, the hydraulic cylinder 210 is adjusted to move the partition frame 207 according to the single detection length. The scale plate 7 monitors the length in real time. When the partition frame 207 moves to the specified distance, the electric telescopic rod 214 is adjusted to drive the partition pressure plates 220 under the lifting plate 225 to press the impregnated film paper at different points to achieve the positioning of the impregnated film paper in a single detection.

[0050] Step 3: After the impregnated paper is positioned, adjust hydraulic cylinder 210 again to move the impregnated paper between the two partition frames 207 toward the detection hole in the middle of the operating table 1. The impregnated paper slides on the sliding roller 11 to below the detection hole, thus separating the impregnated paper between the partition frames 207 from the impregnated paper outside the partition frames 207. The impregnated paper between the partition frames 207 is in a downward-pressed state. Adjust hydraulic cylinder 216 to drive the bearing arc plate 215 on the lifting frame 223 to contact and support the impregnated paper. The air pump 219 is started, and the air pump 219 introduces the air filtered through the air filter cover 202 into the arc-shaped pressure plate 201 and blows it out through the air blowing hole 205. The blowing of the air accelerates the flow of the impregnated film paper between the two partition frames 207 downward. At the same time, the compression of the air makes the impregnated film paper better adhere to the supporting arc plate 215. The weighing device 5 below measures the mass of the impregnated film paper for this test. After multiple sets of measurements are performed on the impregnated film paper of the same length, the data of each set are compared to determine whether there are any defects in its quality.

[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A defect detection device for low-formaldehyde furniture impregnated paper, comprising an operating table (1) and a base frame (6), characterized in that, The operating platform (1) has a detection hole located directly above the base frame (6), and a partition detection mechanism (2) is provided at the detection hole on the operating platform (1). The partition detection mechanism (2) includes two partition frames (207), and an adjustment groove (208) is provided on the top of the operating platform (1) below each partition frame (207). An adjustment slider (206) is slidably connected inside each adjustment groove (208). The partition frame (207) is fixedly connected to the top of the adjacent adjustment slider (206). The operating platform (1) is away from the partition frame (207). Both ends of one side are fixedly connected to end blocks (211). The side of the end blocks (211) facing the partition frame (207) is fixedly connected to a hydraulic cylinder (210). The output end of the hydraulic cylinder (210) is fixedly connected to one side of the adjacent partition frame (207). The top of the partition frame (207) is fixedly connected to electric telescopic rods (214) at equal distances. The output ends of multiple electric telescopic rods (214) located below are fixedly connected to the same lifting plate (225). The bottom of the lifting plate (225) is fixedly connected to partition pressure plates (220) at equal distances.

2. The defect detection device for low-formaldehyde furniture impregnated paper according to claim 1, characterized in that, The base frame (6) is equipped with a weighing device (5) located below the detection hole. Two limiting slide rails (204) are fixedly connected to the base frame (6) around the weighing device (5). A limiting slider (222) is slidably connected inside the two limiting slide rails (204). A connecting rod (212) is fixedly connected to the top of the two limiting sliders (222). The ends of the two connecting rods (212) are fixedly connected to the same pressure plate (203). The pressure plate (203) is in contact with the weighing device (5).

3. The defect detection device for low-formaldehyde furniture impregnated paper according to claim 2, characterized in that, Two hydraulic cylinders (216) are symmetrically distributed on the top of the pressure plate (203), and the output ends of the two hydraulic cylinders (216) are fixedly connected to the same lifting frame (223). Bearing arc plates (215) are fixedly connected at equal intervals on the lifting frame (223).

4. The defect detection device for low-formaldehyde furniture impregnated paper according to claim 3, characterized in that, The operating table (1) is fixedly connected to two side rods (209) on both sides of the detection hole, and the ends of multiple side rods (209) are fixedly connected to the same arc-shaped pressure plate (201). The arc-shaped pressure plate (201) has an air blowing hole (205) on its downward-facing arc surface.

5. The defect detection device for low-formaldehyde furniture impregnated paper according to claim 4, characterized in that, The top of the arc-shaped pressure plate (201) is fixedly connected to a pump frame (218), and an air pump (219) is fixedly connected inside the pump frame (218). The top of the pump frame (218) at both ends of the air pump (219) is fixedly connected to a mounting rod (221). The top of the two mounting rods (221) is fixedly connected to the same air filter cover (202). The air inlet end of the air pump (219) is located inside the air filter cover (202). The air delivery end of the air pump (219) is fixedly connected to an air guide pipe (217). The opening end of the air guide pipe (217) is fixedly connected to a main pipe (213). The main pipe (213) has diversion holes at equal intervals facing downward. Each diversion hole is fixedly connected to a diversion pipe (224). One end of the diversion pipe (224) is inserted into the interior of the arc-shaped pressure plate (201).

6. The defect detection device for low-formaldehyde furniture impregnated paper according to claim 5, characterized in that, Both sides of the two partition frames (207) are fixedly connected with contact pieces (8), and the top of the operating table (1) located below each contact piece (8) is fixedly connected with a scale plate (7), and the contact piece (8) is in contact with the adjacent scale plate (7).

7. The defect detection device for low-formaldehyde furniture impregnated paper according to claim 6, characterized in that, The top of the base frame (6) is provided with a ring of support columns (4), and the top of each support column (4) is fixedly connected to the bottom of the operating table (1). The top of the operating table (1) near the detection hole is provided with an installation groove (9). The inner walls on both sides of the two installation grooves (9) are connected to sliding rollers (11) at equal distances via bearings. The inner walls on both sides of the detection hole near the sliding rollers (11) are fixedly connected with semi-circular guide rods (10).

8. The defect detection device for low-formaldehyde furniture impregnated paper according to claim 7, characterized in that, The operating table (1) is provided with detection auxiliary mechanisms (3) at both ends away from the detection hole. The detection auxiliary mechanism (3) includes two fixed plates (301). The two fixed plates (301) are fixedly connected to the top of the operating table (1). The fixed plates (301) are located between two adjacent adjustment slides (208). The two fixed plates (301) are connected to two guide rollers (302) on opposite sides near the bottom end through bearings.

9. A defect detection device for low-formaldehyde furniture impregnated paper according to claim 8, characterized in that, Two lifting grooves (312) are opened on opposite sides of the two fixed plates (301), and the same lifting slider (311) is slidably connected inside the two lifting grooves (312) on the same fixed plate (301). End rings (313) are fixedly connected to opposite sides of the two lifting sliders (311). The same tension roller (305) is connected to opposite sides of the two end rings (313) through bearings. The same mating roller (306) is connected to opposite sides of the two end rings (313) below the tension roller (305) through bearings. A communicating cavity (315) is opened on both end rings (313). The tension roller (305) and the mating roller (306) are both connected to the end rings (313). Suction holes are opened on both the tension roller (305) and the mating roller (306). The top of each of the two fixed plates (301) is fixedly connected to a top ring frame (307), and a hydraulic cylinder (308) is fixedly connected to each of the two top ring frames (307). The output end of the hydraulic cylinder (308) is fixedly connected to the top of the adjacent lifting slider (311). A support plate (303) is fixedly connected to one side of one of the fixed plates (301). A collection box (304) is fixedly connected to the top of the support plate (303). An adsorption pump (310) is fixedly connected to the top of the collection box (304). A telescopic extraction pipe (309) is fixedly connected to the adsorption end of the adsorption pump (310). One end of the telescopic extraction pipe (309) is inserted into the interior of the adjacent end ring (313). The delivery end of the adsorption pump (310) is connected to the interior of the collection box (304) through a pipe.

10. A method for detecting defects in low-formaldehyde furniture impregnated paper, using the defect detection device for low-formaldehyde furniture impregnated paper as described in claim 9, characterized in that... Includes the following steps: Step 1: First, the impregnated film paper is passed between the two guide rollers (302), the mating roller (306), and the tension roller (305). Before the partition plate (220) in the partition frame (207) positions and presses the impregnated film paper, the hydraulic cylinder three (308) is adjusted to drive the tension roller (305) and the mating roller (306) to rise, thereby straightening the impregnated film paper. At the same time, when the impregnated film paper moves between the mating roller (306) and the tension roller (305), the adsorption pump (310) is started. The adsorption pump (310) collects the impurities attached to the impregnated film paper through the adsorption holes (314) on the mating roller (306) and the tension roller (305). Step 2: After the impregnated film paper passes between the two partition frames (207), the hydraulic cylinder (210) is adjusted to move the partition frame (207) according to the single detection length. The scale plate (7) monitors the length in real time. When the partition frame (207) moves to the specified distance, the electric telescopic rod (214) is adjusted to drive the partition pressure plates (220) under the lifting plate (225) to press the impregnated film paper at different points to achieve the positioning of the impregnated film paper in a single detection. Step 3: After the impregnated film paper is positioned, adjust hydraulic cylinder one (210) again to move the impregnated film paper between the two partition frames (207) toward the detection hole in the middle of the operating table (1). The impregnated film paper slides on the sliding roller (11) to below the detection hole, thereby separating the impregnated film paper between the partition frames (207) from the impregnated film paper outside the partition frames (207). The impregnated film paper between the partition frames (207) is in a downward pressure state. Adjust hydraulic cylinder two (216) to drive the bearing arc plate (215) on the lifting frame (223) to contact the impregnated film paper and support it. The air pump (219) is started and the air pump (219) introduces the gas filtered through the air filter cover (202) into the arc-shaped pressure plate (201) and blows it out through the air blowing hole (205). The blowing of the gas accelerates the flow of the impregnated film paper between the two partition frames (207) downward. At the same time, the compression of the gas makes the impregnated film paper better adhere to the supporting arc plate (215). The weighing device (5) below performs the quality measurement of the impregnated film paper for this test. After multiple sets of measurements are performed on the impregnated film paper of the same length, the data of each set are compared to determine whether there are any defects in its quality.

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