Wood self-alignment detection system and detection method

Abstract

The invention discloses a wood self-alignment detection system and method. The wood self-alignment detection system comprises a feeding device, a conveying device and a screening device which are sequentially and linearly arranged along the X axis. The conveying device is sequentially sleeved with an alignment device used for aligning wood, a wood size detection device used for detecting the size of the wood and a wood water content detection device used for detecting the water content of the wood. The conveying device comprises a first conveying mechanism, a second conveying mechanism and a third conveying mechanism which are sequentially arranged end to end at intervals, and the alignment device corresponds to the first conveying mechanism. The alignment device is installed on the first conveying mechanism, wood located on the first conveying mechanism can be automatically aligned to the center position, the wood is conveyed into the wood size detection device and the wood moisture content detection device through the conveying device to be detected, and the wood is screened through the screening device; the alignment device ensures the accuracy of detection data; the screening device is arranged, so that labor cost is saved, and precision is improved.

Description

Technical Field

[0001] The invention relates to the technical field of detection systems, in particular to a wood self-alignment detection system and a detection method. Background Art

[0002] In the wood processing industry, high-end wood is mostly imported from abroad. Due to long transportation distances or bad weather, the wood size and thickness often vary greatly or the moisture content of the wood exceeds the standard.

[0003] Existing systems for detecting moisture content and size mostly include a loading and conveying device, a unloading and conveying device, and detection devices for detecting the moisture content and size of wood respectively. The wood needs to be manually aligned before being sent into the detection device, and the wood with unqualified size and unqualified moisture content needs to be manually sorted, which is inefficient and has high labor costs. Moreover, manual alignment requires too high manual skills, and there is a certain deviation that cannot ensure that the wood is located in the middle position of the conveying device, which will affect the accuracy of subsequent detection work. Manual sorting requires operators to select out unqualified size wood, unqualified moisture content wood and intact wood according to the prompts of the wood size detection device and the wood moisture content detection device, which requires the operators to concentrate highly, otherwise deviations will occur, affecting the accuracy of subsequent processing and production. Summary of the invention

[0004] In view of the problems that the prior art is unable to align and screen with high precision and has high cost and low efficiency, the present invention is intended to provide a wood self-alignment detection system and detection method that can automatically align and screen.

[0005] The present invention provides a wood self-alignment detection system, comprising a feeding device, a conveying device, and a screening device which are sequentially arranged in a straight line along an X-axis; an alignment device for aligning the wood to be detected, a wood size detection device for detecting the size of the wood to be detected, and a wood moisture content detection device for detecting the moisture content of the wood to be detected are sequentially sleeved and installed on the conveying device;

[0006] The conveying device comprises a first conveying mechanism, a second conveying mechanism and a third conveying mechanism which are arranged in sequence with a head-to-tail gap; the alignment device is arranged corresponding to the first conveying mechanism, the wood size detection device is arranged at the connection between the first conveying mechanism and the second conveying mechanism; the wood moisture content detection device is arranged at the connection between the second conveying mechanism and the third conveying mechanism;

[0007] The alignment device includes: an alignment frame mounted on the first conveying mechanism, a fixed plate installed on the top of the alignment frame, at least one alignment cylinder installed on the upper end surface of the fixed plate along the Y-axis direction, an alignment gear installed on the lower end surface of the fixed plate, an alignment rack fixedly installed on the lower end surface of the fixed plate parallel to the Y-axis, and an alignment component fixedly installed at the end of the alignment rack; the two alignment racks are respectively located on both sides of the alignment gear, and are both connected with the alignment gear; the alignment component is fixedly connected to the telescopic end of the alignment cylinder through a connecting piece, and the alignment cylinder drives the alignment component to move inward or outward along the X-axis direction.

[0008] Furthermore, the alignment component includes: an alignment rod fixedly connected to the end of the alignment rack; a plurality of rotating columns installed at equal intervals on the lower end surface of the alignment rod; the two alignment rods are parallel to each other and parallel to the conveying direction of the first conveying mechanism.

[0009] Furthermore, the alignment device also includes a guide assembly for guiding the two alignment rods; the guide assembly includes: two alignment guide strips symmetrically arranged on the lower end surface of the fixed plate and parallel to the alignment racks, and an alignment sliding block installed in cooperation with the alignment guide strips; the alignment sliding block is fixedly connected to the alignment rod.

[0010] Furthermore, the wood size detection device includes a size detection shell, an upper size detection mechanism arranged on the inner side of the top wall of the size detection shell, a lower size detection mechanism installed symmetrically with the upper size detection mechanism on the inner side of the lower wall of the shell, a first cleaning mechanism installed on the outer side of the lower size detection mechanism for cleaning dust in the size detection shell, and a size detection display mechanism installed on the outer side of the size detection shell; a first detection gap for detecting wood is arranged between the first conveying mechanism and the second conveying mechanism, and the detection areas of the upper size detection mechanism and the lower size detection mechanism fall within the first detection gap.

[0011] Furthermore, the upper size detection mechanism includes: an upper fixed component fixedly installed on the top of the size detection shell, a first upper sliding base slidably installed with the upper fixed component, and an upper detection 3D camera fixedly installed with the first upper sliding base for obtaining upper cross-sectional data of the wood to be detected; the lower size detection mechanism includes: a lower fixed component fixedly installed on the bottom of the size detection shell, a first lower sliding base slidably installed with the lower fixed component, and a lower detection 3D camera fixedly installed with the first lower sliding base for obtaining lower cross-sectional data of the wood to be detected; sliding the first upper sliding base to adjust the upper detection 3D camera to the left and right position of the wood to be detected; sliding the first lower sliding base to adjust the lower detection 3D camera to the left and right position of the wood to be detected.

[0012] Furthermore, the wood moisture content detection device includes: a moisture content detection shell, an upper microwave detection mechanism installed on the top of the moisture content detection shell, a lower microwave detection mechanism installed on the bottom of the moisture content detection shell, a moisture content detection server installed on the inner wall of the moisture content detection shell for processing detection data of the upper microwave detection mechanism and the lower microwave detection mechanism, and a second cleaning mechanism installed on the inner side wall of the moisture content detection shell for removing dust in the moisture content detection shell; a second detection gap for detecting wood is provided between the second conveying mechanism and the third conveying mechanism, and the detection areas of the upper microwave detection mechanism and the lower microwave detection mechanism fall within the second detection gap.

[0013] Furthermore, the upper microwave detection mechanism includes: an upper displacement adjustment component installed on the top of the moisture content detection shell, a second upper sliding base slidably installed on the upper displacement adjustment component, and an upper microwave detection head fixedly installed on the second upper sliding base for detecting the upper cross-section of the wood to be detected; the lower microwave detection mechanism includes: a lower displacement adjustment component fixedly installed on the bottom of the moisture content detection shell, a second lower sliding base slidably installed on the lower displacement adjustment component, and a lower microwave detection head fixedly installed on the second upper sliding base for detecting the lower cross-section of the wood to be detected; the upper displacement adjustment component is adjusted to adjust the upper microwave detection head to the left and right position of the wood to be detected, and the second upper sliding base is slided to adjust the vertical distance between the upper microwave detection head and the wood to be detected; the lower displacement adjustment component is adjusted to adjust the lower microwave detection head to the left and right position of the wood to be detected, and the second lower sliding base is slided to adjust the vertical distance between the lower microwave detection head and the wood to be detected.

[0014] Further, the screening device comprises a plurality of sorting mechanisms sequentially arranged at the tail end of the third conveying mechanism; the sorting mechanism comprises: a Y-axis conveying component and an X-axis screening component;

[0015] The Y-axis transmission assembly includes: a transmission frame, a first motor fixedly mounted on the transmission frame, a first driving pulley coaxially mounted on an output shaft of the first motor, a plurality of first driven pulleys coaxially rotating with the first driving pulley through a plurality of first chains, and a transmission roller mounted on the first driven pulley;

[0016] The X-axis screening assembly includes a supporting frame, a second motor installed on the side of the conveying assembly, a second driving pulley rotating coaxially with the output shaft of the second motor, a second driven pulley rotating coaxially with the second driving pulley through a second chain, a transmission rod installed on one side of the second driven wheel and a plurality of sprocket conveying assemblies evenly distributed on the transmission rod, the end of the sprocket conveying assembly is fixedly installed on the conveying frame; a sliding roller bar for receiving the rolling wood is installed on the upper side of the supporting frame, and a blocking member for preventing the wood from falling is installed on the end of the supporting frame close to the outer side.

[0017] Furthermore, three sorting mechanisms are provided, and the three sorting mechanisms are respectively a size abnormality sorting mechanism for sorting wood with abnormal size and curvature, a moisture content abnormality sorting mechanism for sorting wood with unqualified moisture content, and a qualified wood sorting mechanism for sorting completely qualified wood.

[0018] The present invention also provides a detection method of a wood self-alignment detection system, comprising the following steps:

[0019] S1. Place the wood to be tested on the loading device and feed them one by one onto the first conveying mechanism.

[0020] S2. Start the alignment device to adjust the wood to be detected to the central axis of the first conveying mechanism, and send the wood to be detected into the wood size detection device as the first conveying mechanism moves.

[0021] S3. Perform size detection on the wood to be detected, that is, adjust the positions of the upper size detection mechanism and the lower size detection mechanism relative to the wood to be detected, and perform symmetrical detection of the upper and lower sections of the wood, draw a 3D state diagram based on the detection data, and photograph and scan the entire wood through the cooperation of the first conveying mechanism and the second conveying mechanism and transmit it out of the wood size detection device.

[0022] S4. The moisture content of the wood to be tested is tested, that is, the second conveying mechanism transmits the wood into the wood moisture content detection device, and the upper microwave detection mechanism and the lower microwave detection mechanism are adjusted respectively to detect the upper and lower cross-sections of the wood, and the moisture content of the whole wood is carefully tested through the cooperation of the second conveying mechanism and the third conveying mechanism, and then transmitted out of the moisture content detection device.

[0023] S5. According to the detection data obtained in step S3 and step S4, the detected wood is classified and screened, that is, the third conveying mechanism transmits the wood to the screening device, and the data transmitted by the wood moisture content detection device and the wood size detection device enable the Y-axis transmission component and the X-axis screening component to start working in coordination, so as to classify and screen the wood in detail.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. The present invention installs an alignment device on the first conveying mechanism, which can automatically align the wood on the first conveying mechanism to the center position, and transmit the wood to the wood size detection device through the first conveying mechanism; through wireless data transmission with the wood size transmission device and the wood moisture content transmission device, the screening device installed at the tail end of the third conveying mechanism can automatically screen the wood size and moisture content. The setting of the alignment device avoids the disadvantage of low alignment accuracy caused by manual alignment, and facilitates the detection of wood by the size detection device and ensures the accuracy of the detection data; the setting of the screening device not only saves labor costs, but also improves the accuracy of the screening work, and facilitates the production and processing of wood.

[0026] 2. The present invention installs a wood size detection device in the middle of the first conveying mechanism and the second conveying mechanism, so that the upper size detection mechanism and the lower size detection mechanism scan and shoot the upper and lower sections of the wood, and wirelessly transmit the scanned data and the 3D picture to the display mechanism for splicing and display, and finally transmit the wood size detection data wirelessly to the screening device. By installing a wood moisture content detection device in the middle of the second conveying mechanism and the third conveying device, the upper microwave detection component and the lower microwave detection component are used to detect the moisture content of the upper and lower sections of the wood, and the second conveying mechanism and the third conveying device are used to transmit the moisture content of each part of the wood in detail, and the detection data is transmitted to the moisture content detection server for data processing, and finally the wood moisture content data is wirelessly transmitted to the screening device. The setting of the wood size detection device and the wood moisture content detection device can detect the moisture content and size of each part of the wood in detail and transmit them to the screening device, which not only ensures the accuracy of screening, but also efficiently and conveniently completes the preparation for the early stage of production, and solves the problems of low efficiency, high cost and incomplete detection caused by manual detection in the prior art.

[0027] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Figure 1 It is a schematic diagram of the overall structure of the wood self-alignment detection system;

[0030] Figure 2 It is a schematic diagram of the structure of the alignment device from the first perspective;

[0031] Figure 3It is a schematic diagram of the structure of the alignment device from a second viewing angle;

[0032] Figure 4 It is a schematic diagram of the overall structure of the wood size detection device;

[0033] Figure 5 This is a schematic diagram of the internal structure of the wood size detection device from a first-person perspective;

[0034] Figure 6 This is a schematic diagram of the second perspective structure of the wood size detection device;

[0035] Figure 7 This is a schematic diagram of some parts of the wood size detection device;

[0036] Figure 8 It is a schematic diagram of the overall structure of the wood moisture content detection device;

[0037] Fig. 9 This is a schematic diagram of the internal structure of the wood moisture content detection device from a first-person perspective;

[0038] Fig.10 This is a schematic diagram of the second perspective structure of the wood moisture content detection device;

[0039] Fig.11 It is a schematic diagram of the overall structure of the sorting mechanism;

[0040] Fig.12 It is a schematic diagram of the structure of the Y-axis transmission component;

[0041] Fig.13 This is a schematic diagram of the X-axis screening component structure;

[0042] Fig.14 It is a flow chart of the steps of the detection method of the wood self-alignment detection system;

[0043] Numbers in the figure: 1, feeding device; 11, feeding rack; 12, large roller;

[0044] 2. Conveying device; 21. First conveying mechanism; 22. Second conveying mechanism; 23. Third conveying mechanism;

[0045] 3. Alignment device; 31. Alignment frame; 32. Fixing plate; 33. Alignment cylinder; 34. Alignment gear; 35. Alignment rack; 36. Alignment assembly; 361. Alignment rod; 362. Rotating column; 37. Connecting piece; 38. Guide assembly; 381. Alignment guide strip; 382. Alignment slide block;

[0046] 4. Wood size detection device; 41. Size detection housing; 42. Upper size detection mechanism; 421. Upper fixing assembly; 4211. First upper fixing base plate; 4212. First upper fixing seat; 4213. First upper slide rail; 4214. First upper bolt; 422. First upper slide base; 423. Upper detection 3D camera; 43. Lower size detection mechanism; 431. Lower fixing assembly; 4311. First lower fixing base plate; 4312. First lower fixing seat; 4313. First lower slide rail; 4 314, first lower bolt; 432, first lower sliding base; 433, lower detection 3D camera; 44, first cleaning mechanism; 441, mounting frame; 442, air blowing assembly; 443, first suction port; 45, size detection display mechanism; 451, visual server; 452, display screen; 453; control assembly; 4531, support frame; 4532, third slide rail; 4533, sliding frame; 4534, mouse; 4535, keyboard; 46, first detection gap; 47, alarm;

[0047] 5. Wood moisture content detection device; 51. Moisture content detection housing; 52. Upper microwave detection mechanism; 521. Upper displacement adjustment assembly; 5211. Second upper fixed seat; 5212. Second upper fixed column; 5213. Second upper track; 5214. Second upper guide rail; 5215. Third upper bolt; 5216. Second upper bolt; 522. Second upper sliding base; 523. Upper microwave detection head; 53. Lower microwave detection mechanism; 531. Lower displacement adjustment assembly; 5311. Second lower fixed seat; 5312. Second lower fixed column; 5313. Second lower track; 5314. Second lower guide rail; 5315. Third lower bolt; 5316. Second lower bolt; 532. Second lower sliding base; 533. Lower microwave detection head; 54. Moisture content detection server; 55. Second cleaning mechanism; 551. Second dust suction port; 56. Second detection gap;

[0048] 6. Screening device; 61. Sorting mechanism; 611. Y-axis transmission assembly; 6111. Transmission frame; 6112. First motor; 6113. First driving pulley; 6114. First chain; 6115. First driven pulley; 6116. Transmission roller; 612. X-axis screening assembly; 6121. Support frame; 6122. Second motor; 6123. Second driving pulley; 6124. Second chain; 6125. Second driven pulley; 6126. Transmission rod; 6127. Sprocket transmission assembly; 6128. Sliding roller bar; 6129. Blocking member. DETAILED DESCRIPTION

[0049] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0050] It should be noted that when an element is referred to as being "fixed on" or "set on" another component, it can be directly on the other component or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0051] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0052] Please refer to Figures 1 to 13 The present invention provides a self-alignment detection system for wood to be detected, comprising a feeding device 1, a conveying device 2, and a screening device 6 which are arranged in a straight line along the X-axis; the conveying device 2 is sequentially mounted with an alignment device 3 for aligning the wood to be detected, a wood size detection device 4 for detecting the size of the wood to be detected, and a wood moisture content detection device 5 for detecting the moisture content of the wood to be detected.

[0053] The conveying device 2 includes: a first conveying mechanism 21, a second conveying mechanism 22 and a third conveying mechanism 23 which are arranged in sequence with a head-to-tail gap; an alignment device 3 is arranged corresponding to the first conveying mechanism 21; a wood size detection device 4 is arranged at the connection between the first conveying mechanism 21 and the second conveying mechanism 22; and a wood moisture content detection device 5 is arranged at the connection between the second conveying mechanism 22 and the third conveying mechanism 23.

[0054] The alignment device 3 includes: an alignment frame 31 mounted on the first conveying mechanism 21, a fixed plate 32 installed on the top of the alignment frame 31, at least one alignment cylinder 33 installed on the upper end surface of the fixed plate 32 along the Y-axis direction, an alignment gear 34 installed on the lower end surface of the fixed plate 32, an alignment rack 35 fixedly installed on the lower end surface of the fixed plate 32 parallel to the Y-axis, and an alignment component 36 fixedly installed at the end of the alignment rack 35; the two alignment racks 35 are respectively located on both sides of the alignment gear 34, and are both connected to the alignment gear 34; the alignment component 36 is fixedly connected to the telescopic end of the alignment cylinder 33 through a connecting piece 37, and the alignment cylinder 33 drives the alignment component 36 to move inward or outward along the X-axis direction.

[0055] The alignment component 36 includes: an alignment rod 361, which is fixedly connected to the end of the corresponding alignment rack 35; a plurality of rotating columns 362, which are installed at equal intervals on the lower end surface of the alignment rod 361; the two alignment rods 361 are parallel to each other and parallel to the conveying direction of the first conveying mechanism 21.

[0056] The alignment device 3 also includes a guide assembly 38 for guiding the two alignment rods 361; the guide assembly 38 includes: two alignment guide strips 381 symmetrically arranged on the lower end surface of the fixed plate 32 and parallel to the alignment rack 35, and an alignment sliding block 382 installed in cooperation with the guide strips; the alignment sliding block 382 is fixedly connected to the alignment rod 361.

[0057] In this embodiment, the loading device 1 includes: a loading rack 11 and a plurality of large rollers 12 installed on the upper part of the loading rack 11. The wood to be tested is placed on the loading rack 11, and the wood is pushed to slide on the large rollers 12 to be fed to the first conveying mechanism 21. Multiple loading racks 11 can be provided to facilitate the storage of the wood to be tested. The wood is clamped at the central axis position of the first conveying mechanism 21 by the alignment device 3, and the wood is conveyed into the wood size detection device 4 by the first conveying mechanism 21 for size detection. After the detection is completed, the wood is conveyed out of the wood size detection device 4 by the second conveying mechanism 22, and then conveyed into the wood moisture content detection device 5 for wood moisture content detection. After the detection is completed, the wood is conveyed out of the wood moisture content detection device 5 by the third conveying mechanism 23, and then the wood is conveyed to the screening device 6, and the wood is sorted according to the detection data of the wood moisture content detection device 5 and the detection data of the wood size detection device 4.

[0058] The alignment cylinder 33 can be set to be driven by a double cylinder or a single cylinder. When the alignment cylinder 33 is set to be driven by a double cylinder, the wood passes through the alignment device 3 on the first conveying mechanism 21, and the alignment device 3 starts to align. The double alignment cylinders 33 are started to make the piston rod start to retract, driving the connecting piece 37 fixedly mounted on the piston rod to start to move inward, and driving the alignment component 36 fixedly mounted on the other end of the connecting piece 37 to move inward, so that the alignment components 36 on both sides start to move inward at the same time, and the alignment racks 35 fixedly mounted on the alignment components 36 on both sides move inward accordingly, driving the alignment gear 34 meshing with the alignment rack 35 to rotate, ensuring the synchronization of the movement of the alignment components 36 on both sides. At this time, the wood is clamped to the central axis position of the first conveying mechanism 21 through the inward movement of the alignment components 36 on both sides, completing the alignment of the wood, and the aligned wood is conveyed to the wood size detection device 4 for detection through the transmission of the first conveying mechanism 21.

[0059] After the alignment is completed, the double alignment cylinder 33 drives the piston rod to begin to extend, driving the connecting piece 37 fixedly installed on the piston rod to move outward, and the alignment component 36 fixedly installed on the other end of the connecting piece 37 moves outward accordingly, so that the alignment components 36 on both sides move outward at the same time, and the alignment racks 35 fixedly installed on the alignment components 36 on both sides move outward accordingly and drive the alignment gear 34 meshing with the alignment rack 35 to rotate. At this time, the resetting of the alignment device 3 is completed.

[0060] It is further explained that if the alignment cylinder 33 is set to be single-cylinder driven, the alignment gear 34 installed on the lower side of the fixed plate 32 is engaged with the alignment rack 35 to make the alignment components 36 on both sides move synchronously, which can also achieve the same effect as above.

[0061] It is further explained that the arrangement of the alignment device 3 enables the wood to be located at the center of the first conveying mechanism 21, which facilitates the subsequent detection of the wood and improves the accuracy of the wood detection data.

[0062] In addition, the two alignment components 36 are both a combination of an alignment rod 361 and a rotating column 362. When the two alignment components 36 move inward and touch the wood, the rotating column 362 is forced to rotate, which can increase the speed of wood alignment and improve overall work efficiency.

[0063] It is further explained that since the wood is longer, a longer fixed plate 32 is set, and a guide component 38 is added to the lower side of the fixed plate 32. Through the cooperation of the alignment guide bar 381 and the alignment sliding block 382, ​​not only the sliding of the alignment component 36 is completed, but also the installation of the fixed plate 32 is made more secure.

[0064] like Figure 4-Figure 7 As shown, the wood size detection device 4 includes a size detection shell 41, an upper size detection mechanism 42 arranged on the inner side of the top wall of the size detection shell 41, a lower size detection mechanism 43 symmetrically installed on the inner side of the lower wall of the shell with respect to the upper size detection mechanism 42, a first cleaning mechanism 44 installed on the outer side of the lower size detection mechanism 43 for cleaning dust in the size detection shell 41, and a size detection display mechanism 45 installed on the outer side of the size detection shell 41; a first detection gap 46 for detecting wood is arranged between the first conveying mechanism 21 and the second conveying mechanism 22, and the detection areas of the upper size detection mechanism 42 and the lower size detection mechanism 43 fall within the first detection gap 46.

[0065] like Figure 5As shown, the upper size detection mechanism 42 includes: an upper fixed component 421 fixedly mounted on the top of the size detection housing 41, a first upper sliding base 422 slidably mounted on the upper fixed component 421, and an upper detection 3D camera 423 fixedly mounted on the first upper sliding base 422. The lower size detection mechanism 43 includes: a lower fixed component 431 fixedly mounted on the bottom of the size detection housing 41, a first lower sliding base 432 slidably mounted on the lower fixed component 431, and a lower detection 3D camera 433 fixedly mounted on the first lower sliding base 432. The upper detection 3D camera 423 is adjusted to the left and right position of the wood by sliding the first upper sliding base 422; the lower detection 3D camera 433 is adjusted to the left and right position of the wood by sliding the first lower sliding base 432.

[0066] In this embodiment, the wood to be inspected is transported into the wood size detection device 4 through the first conveying mechanism 21. Due to the operation of the alignment device 3, the wood to be inspected is already located at the center of the first conveying mechanism 21. At this time, the upper detection 3D camera 423 and the lower detection 3D camera 433 perform a comprehensive scan and photograph of the wood through the first detection gap 46, and cooperate with the transmission of the first conveying mechanism 21 and the second conveying mechanism 22 to slide the wood forward, so that the upper detection 3D camera 423 and the lower detection 3D camera 433 perform a comprehensive detection of the size, thickness, deformation, etc. of the entire wood, wherein the size of the first detection gap 46 can be adaptively adjusted; after the detection is completed, the wood is transported out of the wood size detection device 4 through the transmission of the second conveying mechanism 22.

[0067] It is further explained that the upper fixing component 421 includes: a first upper fixed base plate 4211 fixedly installed on the inner top wall of the size detection shell 41, a first upper fixed seat 4212 fixedly installed on the first upper fixed base plate 4211, and a first upper slide rail 4213 installed on the end of the first upper fixed seat 4212; a first upper sliding base 422 is slidably installed on the first upper slide rail 4213; a first upper bolt 4214 for adjusting the sliding of the first upper sliding base 422 is installed on the side of the first upper sliding base 422; the first upper sliding base 422 is controlled to slide left and right on the first upper slide rail 4213 by adjusting the tightness of the first upper bolt 4214, so as to adjust the upper detection 3D camera 423 to the left and right position of the wood.

[0068] The lower fixing assembly 431 includes: a first lower fixed base plate 4311 fixedly installed on the inner bottom wall of the size detection shell 41, a first lower fixed seat 4312 fixedly installed on the first lower fixed base plate 4311, and a first lower sliding rail 4313 installed on the end of the first lower fixed seat 4312, a first lower sliding base 432 is slidably installed on the first lower sliding rail 4313, and a first lower bolt 4314 for adjusting the sliding of the first lower sliding base 432 is installed on the side of the first lower sliding base 432; the first lower sliding base 432 is controlled to slide left and right on the first lower sliding rail 4313 by adjusting the tightness of the first lower bolt 4314, so as to adjust the lower detection 3D camera 433 to the left and right position of the wood.

[0069] It is further explained that the first cleaning mechanism 44 includes a mounting frame 441 mounted on the outside of the lower size detection component, a blowing component 442 mounted on the mounting frame 441, and a first dust suction port 443 arranged opposite to the blowing component 442, and the first dust suction port 443 is mounted on the side wall of the size detection housing 41. In the process of wood detection, wood debris or dust often falls on the lower detection 3D camera 433 through the gap, affecting the clarity of the lower detection 3D camera 433 shooting and scanning, and the dust falling on the lower detection 3D camera 433 is blown out from the first dust suction port 443 by the blowing component 442.

[0070] It is further explained that the size detection and display mechanism 45 includes a visual server 451 disposed at the rear side of the upper detection 3D camera 423 for reading the scanned data of the upper detection 3D camera 423 and the lower detection 3D camera 433, a display screen 452 disposed at the outer side of the size detection housing 41 and wirelessly connected to the visual server 451 for displaying the scanned data of the upper detection 3D camera 423 and the lower detection 3D camera 433, and a control component 453 for operating the display screen. The data scanned by the upper detection 3D camera 423 and the lower detection 3D camera 433 are read by the visual server 451, and the upper cross-section 3D image of the wood and the lower cross-section 3D image of the wood are spliced ​​and displayed on the display screen 452, and the 3D image in the display screen can be viewed in various directions through the control component 453, so that the operator can observe and monitor the wood.

[0071] It is further explained that the control component 453 includes: a support frame 4531 symmetrically mounted on the inner wall of the size detection housing 41, a third slide rail 4532 fixedly mounted on the support frame 4531, and a sliding frame 4533 slidably mounted on the third slide rail 4532. A mouse 4534 and a keyboard 4535 for operating the display screen 452 are placed on the sliding frame 4533. The 3D image in the display screen 452 can be viewed in various directions by operating the mouse 4534 and the keyboard 4535; the sliding frame 4533 can be slid and stretched to the outside of the size detection housing 41 to facilitate the operation of the mouse 4534 and the keyboard 4535, and the sliding frame 4533 can also be slid and pushed back into the support frame 4531 to protect the mouse 4534 and the keyboard 4535 and improve the integrity of the device.

[0072] It is further explained that an alarm 47 for alarm is installed on the top of the size detection shell 41. The alarm 47 is wirelessly connected to the visual server 451. When the video server 451 cannot receive data from the upper detection 3D camera 423 and the lower detection 3D camera 433, the alarm 47 emits an alarm sound; if the detected wood has unqualified conditions such as bending and deformation, the alarm 47 emits another sound, which is convenient for the subsequent screening device 6 to operate quickly.

[0073] like Figure 8-Figure 10 As shown, the wood moisture detection device 5 comprises: a moisture detection housing 51, an upper microwave detection mechanism 52 installed at the top of the moisture detection housing 51, a lower microwave detection mechanism 53 installed at the bottom of the moisture detection housing 51, a moisture detection server 54 installed on the inner wall of the moisture detection housing 51 for processing the detection data of the upper microwave detection mechanism 52 and the lower microwave detection mechanism 53, and a second cleaning mechanism 55 installed on the inner side wall of the moisture detection housing 51 for removing dust in the moisture detection housing 51. A second detection gap 56 for detecting wood is provided between the second conveying mechanism 22 and the third conveying mechanism 23, and the detection areas of the upper microwave detection mechanism 52 and the lower microwave detection mechanism 53 fall within the second detection gap 56.

[0074] As shown in the figure, the upper microwave detection mechanism 52 includes: an upper displacement adjustment component 521 installed on the top of the moisture content detection housing 51, a second upper sliding base 522 slidably installed on the upper displacement adjustment component 521, and an upper microwave detection head 523 fixedly installed on the second upper sliding base 522. The lower microwave detection mechanism 53 includes: a lower displacement adjustment component 531 installed on the bottom of the moisture content detection housing 51, a second lower sliding base 532 slidably installed on the lower displacement adjustment component 531, and a lower microwave detection head 533 installed on the second lower sliding base 532. The upper displacement adjustment component 521 is adjusted to adjust the upper microwave detection head 523 to the left and right position of the wood to be detected, and the second upper sliding base 522 is slid to adjust the vertical distance between the upper microwave detection head 523 and the wood to be detected; the lower displacement adjustment component 531 is adjusted to adjust the lower microwave detection head 533 to the left and right position of the wood to be detected, and the second lower sliding base 532 is slid to adjust the vertical distance between the lower microwave detection head 533 and the wood to be detected.

[0075] In this embodiment, the wood to be tested is transported into the wood moisture content detection device 5 through the second conveying mechanism 22, and the upper microwave detection head 523 and the lower microwave detection head 533 can detect the moisture content of the upper and lower sections of the wood to be tested through the second detection gap 56. At this time, the upper displacement adjustment component 521 and the lower displacement adjustment component 531 are adjusted, and the distance between the upper microwave detection head 523 and the lower microwave detection head 533 and the wood to be tested is adjusted to a suitable distance, and then the second upper sliding base 522 and the second lower sliding base 532 are slid, and the transmission of the second conveying mechanism 22 and the third conveying mechanism 23 is coordinated so that the upper microwave detection head 523 and the lower microwave detection head 533 can perform detailed moisture content detection on each part of the whole wood. The size of the second detection gap 56 can be adjusted adaptively; after the detection is completed, the wood is transported out of the wood size detection device 4 through the transmission of the third conveying mechanism 23.

[0076] It is further explained that the upper displacement adjustment assembly 521 includes: a second upper fixed seat 5211 installed on the top of the moisture content detection housing 51, a second upper fixed column 5212 installed on the lower side of the second upper fixed seat 5211, a second upper rail 5213 installed on the end of the second upper fixed column 5212, and a second upper guide rail 5214 slidably installed with the second upper rail 5213, a third upper bolt 5215 for fastening the sliding of the second upper guide rail 5214 is installed on the second upper guide rail 5214, a second upper sliding base 522 is slidably installed on the second upper guide rail 5214, and a second upper bolt 5216 for adjusting the distance from the second upper microwave detection head 523 to the wood to be detected is installed on the second upper sliding base 522. Adjust the tightness of the third upper bolt 5215 so that the second upper guide rail 5214 slides on the second upper rail 5213, thereby adjusting the upper microwave detection head 523 to the left or right position of the wood to be detected; adjust the tightness of the second upper bolt 5216 so that the second upper sliding base 522 slides on the second upper guide rail 5214, thereby adjusting the distance from the second upper microwave detection head 523 to the wood to be detected.

[0077] The lower displacement adjustment assembly 531 includes: a second lower fixed seat 5311 installed on the bottom of the moisture content detection housing 51, a second lower fixed column 5312 installed on the upper side of the second lower fixed seat 5311, a second lower track 5313 installed on the end of the second lower fixed column 5312, and a second lower guide rail 5314 slidably installed with the second lower track 5313, a third lower bolt 5315 for fastening the sliding of the second lower guide rail 5314 is installed on the second lower guide rail 5314, a second lower sliding base 532 is slidably installed on the second lower guide rail 5314, and a second lower bolt 5316 for adjusting the distance from the lower microwave detection head 533 to the wood to be detected is installed on the second lower sliding base 532. Adjust the tightness of the third lower bolt 5315 so that the second lower guide rail 5314 slides on the second lower rail 5313, thereby adjusting the lower microwave detection head 533 to the left or right position of the wood to be detected; adjust the tightness of the second lower bolt 5316 so that the second lower sliding base 532 slides on the second lower guide rail 5314, thereby adjusting the distance from the lower microwave detection head 533 to the wood to be detected.

[0078] It is further explained that the moisture content detection server 54 is used to process the detection data of the upper microwave detection mechanism 52 and the lower microwave detection mechanism 53, and wirelessly transmit the moisture content detection data to the screening device 6 after splicing them together, so that the screening device 6 can screen the wood according to the detection data.

[0079] It is further explained that the second cleaning mechanism 55 includes: a second dust suction port 551 installed on the inner wall of the moisture content detection shell 51 corresponding to the lower microwave detection head 533, and an exhaust pump is installed at the end of the second dust suction port 551. During the transmission of the wood, it is inevitable that wood chips or some dust will fall onto the lower microwave detection head 533, which will affect the accuracy of wood detection. Therefore, the exhaust pump is driven to suck out the debris that falls on the lower microwave detection head 533 through the second dust suction port 551, thereby ensuring the accuracy of the device detection and improving the quality of detection.

[0080] like Figure 11-13 As shown, the screening device 6 includes a plurality of sorting mechanisms 61 installed at the rear end of the third conveying mechanism 23 ; the sorting mechanism 61 includes: a Y-axis conveying component 611 and an X-axis screening component 612 .

[0081] The Y-axis transmission assembly 611 includes: a transmission frame 6111, a first motor 6112 fixedly mounted on the transmission frame 6111, a first driving pulley 6113 coaxially mounted on the output shaft of the first motor 6112, a plurality of first driven pulleys 6115 coaxially rotating with the first driving pulley 6113 through a plurality of first chains 6114, and a transmission roller 6116 mounted on the first driven pulley 6115. Three sorting mechanisms 61 are provided, and the three sorting mechanisms 61 are respectively a size abnormality sorting mechanism for sorting wood with abnormal size and curvature, a moisture content abnormality sorting mechanism for sorting wood with unqualified moisture content, and a qualified wood sorting mechanism for sorting completely qualified wood.

[0082] The X-axis screening assembly 612 includes a support frame 6121, a second motor 6122 installed on the side of the transmission assembly, a second driving pulley 6123 coaxially rotating with the output shaft of the second motor 6122, a second driven pulley 6125 coaxially rotating with the second driving pulley 6123 through a second chain 6124, a transmission rod 6126 installed on one side of the second driven pulley, and a sprocket transmission assembly 6127 evenly distributed on the transmission rod 6126, and the end of the sprocket transmission assembly 6127 is fixedly installed on the transmission frame 6111. A sliding roller bar 6128 for receiving the rolling wood is installed on the upper side of the support frame 6121, and a blocking member 6129 for blocking the wood from falling is installed at one end of the support frame 6121 close to the outside.

[0083] In this embodiment, the wood is conveyed to the Y-axis conveying assembly 611 by the third conveying mechanism 23, and the first motor 6112 is driven to rotate the first active pulley 6113 installed on the output shaft of the first motor 6112, thereby driving a plurality of first driven pulleys 6115 connected to the first active pulley 6113 through a first chain 6114 to rotate, and the transmission rollers 6116 connected to the plurality of first driven pulleys 6115 rotate accordingly. At this time, the wood is rolled and conveyed on the Y-axis conveying assembly 611, and the corresponding wood is conveyed to the corresponding Y-axis conveying assembly 611 in cooperation with the wireless transmission data of the wood size detection device 4 and the wood moisture content detection device 5, and is stopped or moved in cooperation with the screening of the X-axis screening assembly 612.

[0084] It is further explained that the wood size abnormality sorting mechanism is located near the third conveying mechanism 23, followed by the wood moisture content abnormality sorting mechanism and the qualified wood sorting mechanism. The order of the three sorting mechanisms can be adjusted adaptively, and more sorting mechanisms can also be added adaptively.

[0085] It is further explained that when the wood has dimensional problems such as bending and deformation, the wood size detection device 4 first transmits the specific detection data to the wood size abnormality sorting mechanism, and transmits the wood to the corresponding wood size abnormality sorting mechanism through the Y-axis transmission component 611, and then turns off the first motor 6112 to stop the movement of the Y-axis transmission component 611, and starts the second motor 6122 to drive the second active pulley 6123 coaxially installed with the output shaft of the second motor 6122 to rotate, which drives the second driven pulley 6125 installed through the second chain 6124 and the second active pulley 6123 to rotate, and the transmission rod 6126 installed with the second driven pulley 6125 rotates accordingly, so that It drives several sprocket conveying assemblies 6127 installed on the transmission rod 6126 to move, and at this time the X-axis screening assembly 612 in the wood size abnormality sorting mechanism starts to work; through the movement of the sprocket conveying assembly 6127, the wood rolls from the Y-axis conveying assembly 611 toward the X-axis screening assembly 612 in the wood size abnormality sorting mechanism, and slides into the X-axis screening assembly 612 in the wood size abnormality sorting mechanism through the sliding roller bar 6128 extending out of the support frame 6121. Since the support frame 6121 is inclined, the wood can automatically roll into the X-axis screening assembly 612 in the wood size abnormality sorting mechanism, and the wood is supported by the blocking member 6129.

[0086] It is further explained that a number of small rollers are arranged at equal intervals in the sliding roller strip 6128. The arrangement of the small rollers speeds up the sliding speed of the wood, thereby improving the overall operating efficiency.

[0087] It is further explained that the structure of the sprocket transmission assembly 6127 is a gear chain structure that can be easily thought of by technicians in this field and can be applied here. The sprocket transmission assembly 6127 is not limited in detail here.

[0088] It is further explained that the abnormal wood size sorting mechanism, the abnormal wood moisture content sorting mechanism and the qualified wood sorting mechanism are all provided with corresponding Y-axis transmission components 611 and X-axis screening components 612. The structure and operation mode of the abnormal wood moisture content sorting mechanism and the qualified wood sorting mechanism are exactly the same as those of the abnormal wood size sorting mechanism, and will not be repeated here.

[0089] like Fig.14 As shown, the detection method based on the above-mentioned wood detection system includes the following steps:

[0090] S1. Place the wood to be tested on the loading device 1 and feed them one by one onto the first conveying mechanism 21.

[0091] S2. Start the alignment device 3 to adjust the wood to be detected to the central axis of the first conveying mechanism 21, and convey the wood into the wood size detection device 4 as the first conveying mechanism 21 moves.

[0092] S3. Adjust the upper size detection mechanism 42 and the lower size detection mechanism 43 to perform symmetrical detection of the upper and lower sections of the wood, draw a 3D state diagram based on the detection data, and photograph and scan the entire wood through the cooperation of the first conveying mechanism 21 and the second conveying mechanism 22 and transmit it out of the wood size detection device 4.

[0093] S4. The second conveying mechanism 22 conveys the wood into the wood moisture content detection device 5, and adjusts the upper microwave detection mechanism 52 and the lower microwave detection mechanism 53 to detect the upper and lower cross-sections of the wood respectively. The moisture content of the entire wood is carefully detected and then transmitted out of the wood moisture content detection device 5 through the cooperation of the second conveying mechanism 22 and the third conveying mechanism 23.

[0094] S5. The wood is transported to the screening device 6 through the third conveying mechanism 23, and the Y-axis transmission component 611 and the X-axis screening component 612 start to cooperate with each other through the wireless transmission data of the wood moisture content detection device 5 and the wood size detection device 4. When the wood is bent and the size is unqualified, the wood size abnormality sorting mechanism receives the wireless data from the wood size detection device 4, and the Y-axis transmission component 611 stops transmitting the wood to the wood size abnormality sorting mechanism. At the same time, the X-axis screening component 612 in the wood size abnormality sorting mechanism starts to work and puts the X-axis screening component 612 on.

[0095] When the moisture content of the wood is unqualified, the wood moisture content abnormal sorting mechanism receives the wireless data from the wood moisture content detection device 5, and the Y-axis transmission component 611 stops transmitting the wood to the wood moisture content abnormal sorting mechanism. At the same time, the X-axis screening component 612 in the wood moisture content abnormal sorting mechanism starts working and transmits the wood to the X-axis screening component 612.

[0096] When the wood is completely qualified, the wood moisture content detection device 5 and the wood size detection device 4 do not send any signals, and the Y-axis transmission component 612 stops transmitting the wood when transmitting the wood to the qualified wood sorting mechanism. At the same time, the X-axis screening component 612 in the qualified wood sorting mechanism starts working to transmit the wood to the X-axis screening component 612.

[0097] The detection method using the above-mentioned wood self-alignment detection system is specifically as follows: the wood to be detected is pushed one by one onto the first conveying mechanism 21 through the feeding device 1.

[0098] The wood to be inspected is conveyed on the first conveying mechanism 21, and the alignment device 2 is started. The piston rod of the alignment cylinder 33 is extended and retracted, so that the alignment component 36 connected to the piston rod through the connecting piece 37 moves inward, and the alignment rack 35 is engaged with the alignment gear 34, so that the alignment components 36 on both sides move inward synchronously, clamping the wood at the center axis position of the first conveying mechanism 21.

[0099] The aligned wood to be inspected is transmitted to the wood size detection device 4 through the transmission of the first conveying mechanism 21, and the upper detection 3D camera 423 and the lower 3D detection camera 433 shoot data of the upper and lower cross-sections of the wood through the first detection gap 46 between the first conveying mechanism 21 and the second conveying mechanism 22. The first upper sliding base 422 and the first lower sliding base 432 are slid to adjust the left and right distances from the upper 3D detection camera 423 and the lower 3D detection camera 433 to the wood, and the captured data is transmitted to the size detection display mechanism 45 for data processing, and the processed data is transmitted to the screening device 6.

[0100] The wood after size detection is transmitted to the wood moisture content detection device 5 through the second conveying mechanism 22, and the upper microwave detection head 523 and the lower microwave detection head 533 detect the moisture content of the upper and lower cross-sections of the wood through the second detection gap 56 between the second conveying mechanism 22 and the third conveying mechanism 23. The second upper sliding base 522 and the second lower sliding base 532 can be slid to adjust the vertical distance between the upper microwave detection head 523 and the lower microwave detection head 533 and the wood to be detected. The upper displacement adjustment component 521 and the lower displacement adjustment component 531 can be adjusted to the left and right positions of the wood to be detected. Then, the detection data is processed by the moisture content detection server 54, and the data is transmitted to the screening device 6.

[0101] The detected wood is conveyed to the screening device 6 through the third conveying mechanism 23, and the wood moisture content detection device 5 and the wood size detection device 4 transmit data wirelessly, so that the Y-axis conveying component 611 conveys the wood and cooperates with the X-axis screening component 612 to screen the wood.

[0102] It should be understood that the specific embodiments described above are only used to explain the present invention, and are not used to limit the present invention. Obvious changes or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A wood self-alignment detection system, characterized in that: It includes a feeding device, a conveying device, and a screening device which are arranged in a straight line along the X axis; the conveying device is sequentially sleeved with an alignment device for aligning the wood to be detected, a wood size detection device for detecting the size of the wood to be detected, and a wood moisture content detection device for detecting the moisture content of the wood to be detected; The conveying device comprises a first conveying mechanism, a second conveying mechanism and a third conveying mechanism which are arranged in sequence with a head-to-tail gap; the alignment device is arranged corresponding to the first conveying mechanism, and the wood size detection device is arranged at the connection between the first conveying mechanism and the second conveying mechanism; The wood moisture content detection device is arranged at the connection between the second conveying mechanism and the third conveying mechanism; The alignment device includes: an alignment frame mounted on the first conveying mechanism, a fixed plate installed on the top of the alignment frame, at least one alignment cylinder installed on the upper end surface of the fixed plate along the Y-axis direction, an alignment gear installed on the lower end surface of the fixed plate, an alignment rack fixedly installed on the lower end surface of the fixed plate parallel to the Y-axis, and an alignment component fixedly installed at the end of the alignment rack; the two alignment racks are respectively located on both sides of the alignment gear, and are both connected with the alignment gear; the alignment component is fixedly connected to the telescopic end of the alignment cylinder through a connecting piece, and the alignment cylinder drives the alignment component to move inward or outward along the X-axis direction.

2. The wood self-alignment detection system according to claim 1, characterized in that: The alignment assembly comprises: An alignment rod, fixedly connected to the end of the alignment rack; A plurality of rotating columns are installed at equal intervals on the lower end surface of the alignment rod; The two alignment rods are parallel to each other and parallel to the conveying direction of the first conveying mechanism.

3. The wood self-alignment detection system according to claim 2, characterized in that: The alignment device also includes a guide assembly for guiding the two alignment rods; the guide assembly includes: two alignment guide strips symmetrically arranged on the lower end surface of the fixed plate and parallel to the alignment racks, and an alignment sliding block installed in cooperation with the alignment guide strips; the alignment sliding block is fixedly connected to the alignment rod.

4. The wood self-alignment detection system according to claim 1, characterized in that: The wood size detection device comprises a size detection housing, an upper size detection mechanism arranged on the inner side of the top wall of the size detection housing, a lower size detection mechanism symmetrically installed on the inner side of the lower wall of the housing with respect to the upper size detection mechanism, a first cleaning mechanism installed on the outer side of the lower size detection mechanism for cleaning dust in the size detection housing, and a size detection display mechanism installed on the outer side of the size detection housing; A first detection gap for detecting wood is provided between the first conveying mechanism and the second conveying mechanism, and the detection areas of the upper size detection mechanism and the lower size detection mechanism fall within the first detection gap.

5. The wood self-alignment detection system according to claim 4, characterized in that: The upper dimension detection mechanism comprises: an upper fixed component fixedly mounted on the top of the dimension detection housing, a first upper sliding base slidably mounted on the upper fixed component, and an upper detection 3D camera fixedly mounted on the first upper sliding base for obtaining upper cross-section data of the wood to be detected; The lower dimension detection mechanism comprises: a lower fixed component fixedly mounted on the bottom of the dimension detection housing, a first lower sliding base slidably mounted on the lower fixed component, and a lower detection 3D camera fixedly mounted on the first lower sliding base for obtaining lower cross-section data of the wood to be detected; Slide the first upper sliding base to adjust the upper detection 3D camera to the left and right position of the wood to be detected; slide the first lower sliding base to adjust the lower detection 3D camera to the left and right position of the wood to be detected.

6. The wood self-alignment detection system according to claim 4, characterized in that: The wood moisture content detection device comprises: a moisture content detection housing, an upper microwave detection mechanism installed at the top of the moisture content detection housing, a lower microwave detection mechanism installed at the bottom of the moisture content detection housing, a moisture content detection server installed on the inner wall of the moisture content detection housing for processing detection data of the upper microwave detection mechanism and the lower microwave detection mechanism, and a second cleaning mechanism installed on the inner side wall of the moisture content detection housing for removing dust in the moisture content detection housing; A second detection gap for detecting wood is arranged between the second conveying mechanism and the third conveying mechanism, and the detection areas of the upper microwave detection mechanism and the lower microwave detection mechanism fall within the second detection gap.

7. The wood self-alignment detection system according to claim 6, characterized in that: The upper microwave detection mechanism comprises: an upper displacement adjustment component installed on the top of the moisture content detection housing, a second upper sliding base slidably installed on the upper displacement adjustment component, and an upper microwave detection head fixedly installed on the second upper sliding base for detecting the upper cross section of the wood to be detected; The lower microwave detection mechanism comprises: a lower displacement adjustment component fixedly mounted on the bottom of the moisture content detection housing, a second lower sliding base slidably mounted on the lower displacement adjustment component, and a lower microwave detection head fixedly mounted on the second upper sliding base for detecting the lower cross section of the wood to be detected; Adjust the upper displacement adjustment component to adjust the upper microwave detection head to the left and right position of the wood to be detected, and slide the second upper sliding base to adjust the vertical distance between the upper microwave detection head and the wood to be detected; adjust the lower displacement adjustment component to adjust the lower microwave detection head to the left and right position of the wood to be detected, and slide the second lower sliding base to adjust the vertical distance between the lower microwave detection head and the wood to be detected.

8. The wood self-alignment detection system according to claim 6, characterized in that: The screening device comprises a plurality of sorting mechanisms sequentially arranged at the tail end of the third conveying mechanism; The sorting mechanism comprises: a Y-axis conveying component and an X-axis screening component; The Y-axis transmission assembly includes: a transmission frame, a first motor fixedly mounted on the transmission frame, a first driving pulley coaxially mounted on an output shaft of the first motor, a plurality of first driven pulleys coaxially rotating with the first driving pulley through a plurality of first chains, and a transmission roller mounted on the first driven pulley; The X-axis screening assembly includes a support frame, a second motor installed on the side of the transmission assembly, a second driving pulley coaxially rotating with the output shaft of the second motor, a second driven pulley coaxially rotating with the second driving pulley through a second chain, a transmission rod installed on one side of the second driven pulley, and a plurality of sprocket transmission assemblies uniformly distributed on the transmission rod, and the ends of the sprocket transmission assemblies are fixedly installed on the transmission frame; A sliding roller strip for receiving the rolling wood is installed on the upper side of the support frame, and a blocking piece for blocking the wood from falling is installed at one end of the support frame close to the outer side.

9. The wood self-alignment detection system according to claim 8, characterized in that: There are three sorting mechanisms, which are respectively a size abnormality sorting mechanism for sorting wood with abnormal size and curvature, a moisture content abnormality sorting mechanism for sorting wood with unqualified moisture content, and a qualified wood sorting mechanism for sorting completely qualified wood.

10. The detection method of the wood self-alignment detection system according to claim 8, characterized in that: The following steps are involved: S1. Place the wood to be tested on the feeding device and feed it one by one into the first conveying mechanism; S2. Start the alignment device to adjust the wood to be tested to the central axis of the first conveying mechanism, and with the movement of the first conveying mechanism, the wood to be tested is sent into the wood size detection device; S3. Performing size detection on the wood to be detected, that is, adjusting the position of the upper size detection mechanism and the lower size detection mechanism relative to the wood to be detected, and performing symmetrical detection on the upper and lower cross-sections of the wood, drawing a 3D state diagram based on the detection data, and photographing and scanning the entire wood through the cooperation of the first conveying mechanism and the second conveying mechanism and transmitting it out of the wood size detection device; S4. The moisture content of the wood to be tested is tested, that is, the second conveying mechanism transmits the wood into the wood moisture content detection device, and the upper microwave detection mechanism and the lower microwave detection mechanism are adjusted to detect the upper and lower cross-sections of the wood, and the moisture content of the whole wood is carefully detected and transmitted out of the moisture content detection device through the cooperation of the second conveying mechanism and the third conveying mechanism; S5. According to the detection data obtained in step S3 and step S4, the detected wood is classified and screened, that is, the third conveying mechanism transmits the wood to the screening device, and the data transmitted by the wood moisture content detection device and the wood size detection device enable the Y-axis transmission component and the X-axis screening component to start working in coordination, so as to classify and screen the wood in detail.

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