Intelligent log sawing production line, production process and sawing method

Abstract

The invention belongs to the technical field of intelligent production lines, and particularly relates to an intelligent log sawing production line, a production process and a sawing method. The production line comprises a transverse log conveying line, a longitudinal log conveying line, a first sawing production line, a turnover mechanism, a second sawing production line, a cutting production line and a screening device which are correspondingly arranged in sequence. Middle square stocks and side plate skin materials are separated through the first sawing production line, the turnover mechanism and the second sawing production line, then the middle square stocks and the side plate skin materials are cut through respective specific processing methods according to respective characteristics, the log sawing processing procedures are reduced, the posture of logs is modeled through the multiple 3D scanning modeling devices, and the log sawing efficiency is improved. Automatic production of logs is achieved through cooperation of the first sawing production line and the second sawing production line, the problem that in the prior art, log radial angle adjustment and sawing depend on manual experience is solved, the investment of labor cost is reduced to a large extent, and the log sawing efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent production lines, and specifically relates to an intelligent log sawing production line, a production process and a sawing method. Background Art

[0002] In the early stage of use, logs need to be cut and sawed into boards to be used. For the cutting and processing of logs with larger diameters (over 15 cm), the existing technology uses sports car band saw processing equipment for cutting and production: first, the logs are transported and loaded to the loading and clamping station of the sports car band saw, and the production personnel operate the equipment to rotate the logs. During the rotation of the logs, they closely and attentively observe the appearance of the entire log. When the logs rotate to an axial position suitable for sawing along the length (longitudinal), the manual operation equipment stops the rotation of the logs, the clamping mechanism clamps the logs, the trolley performs a linear reciprocating motion, the position of the band saw remains unchanged, and the logs are sawn along their length direction into sheet boards of a certain thickness to achieve the sawing of the logs.

[0003] The sawing equipment in the prior art requires experienced craftsmen to operate the entire sawing and cutting process, especially the process of log rotation. The initial axial angle when sawing the log is not easy to find, and the operator needs to master the skill of rotating the log axial angle, which directly affects the yield and economic value. The wood cannot be deeply inspected. When there are metal foreign objects such as nails in the log that are difficult to effectively identify or cannot be identified by the naked eye, the saw blade is easily damaged during the cutting process and even splashes, forming a safety accident.

[0004] Meanwhile, the log cutting in the prior art mostly adopts horizontal cutting along the axial direction, and the cut boards all have edge skins, which need to be cut and cleaned, and the process is cumbersome. In addition, the cut boards are of different sizes and are not easy to stack and store. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects in the prior art that the axial angle of the log needs to be manually found, the cutting relies on manual experience, and the process is cumbersome, and to provide a log intelligent sawing production line, production process and sawing method that can automatically rotate the log.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] As a first aspect, a log intelligent sawing production line includes:

[0008] A horizontal log conveying line, a longitudinal log conveying line, a first sawing production line, a turning mechanism, a second sawing production line, a cutting production line and a screening device are arranged in sequence;

[0009] The tail end of the horizontal log conveyor line is vertically connected to the head end of the longitudinal log conveyor line; a fixed-length cutting device is provided on the longitudinal log conveyor line; a first 3D scanning modeling device for performing 3D scanning modeling on logs is provided at the connection between the longitudinal log conveyor line and the first sawing production line; a second 3D scanning modeling device is provided at the connection between the flipping mechanism and the second sawing production line; a scanning transmission device is provided between the second sawing production line and the cutting production line;

[0010] The first sawing production line vertically cuts the log into two side board skins and middle wood along the axial direction according to the modeling data obtained by the first 3D scanning modeling device; the second sawing production line vertically cuts the middle wood into remaining two side board skins and middle square materials along the axial direction according to the modeling data obtained by the second 3D scanning modeling device; the cutting production line performs horizontal fixed-thickness multi-layer cutting of the middle square materials according to the output data of the scanning transmission device to form standard boards and / or core boards; the screening device screens the standard boards and / or core boards according to the sizes, and classifies them for mobile stacking and storage.

[0011] Furthermore, the longitudinal log conveyor line is also provided with a metal detection mechanism for detecting metal materials of the logs, a first discharging conveyor line and a second discharging conveyor line;

[0012] During use, if the metal detection mechanism detects that the log contains metal materials, it will be output to the first discharging conveyor line for manual processing; the scraps after the logs are cut to a fixed length will be transported to the second discharging conveyor line for manual processing.

[0013] Furthermore, the first sawing production line includes a first angular adjustment device arranged at the tail end of the longitudinal log conveying line, a first double-sided sawing device arranged at the output end of the first angular adjustment device, and a first sorting mechanism arranged at the output end of the first double-sided sawing device for separating and conveying the two-side board leather and the middle wood;

[0014] The second sawing production line includes a second angular adjustment device arranged at the output end of the turning mechanism, a second double-sided sawing device arranged at the output end of the second angular adjustment device, and a second sorting mechanism arranged at the output end of the second double-sided sawing device for separating and conveying the remaining two-side board leather materials and the middle square materials;

[0015] The side panel leather material passes through the first sorting mechanism and the second sorting mechanism and enters the side panel leather material processing line for splitting and edge cleaning.

[0016] Furthermore, the scanning transmission device includes a first longitudinal scanning conveyor line connected to the output end of the intermediate square material in the second sorting mechanism, a transverse scanning conveyor line connected to the first axial scanning conveyor assembly, a second longitudinal scanning conveyor line connected to the output end of the transverse scanning conveyor assembly, and depth cameras arranged on both sides of the transverse scanning conveyor line;

[0017] The output end of the second longitudinal scanning conveyor line cooperates with the feed end of the cutting production line for conveying.

[0018] Furthermore, the transverse log conveying line is provided with an end detection device for detecting the length and the positions of the large and small ends of the logs; the fixed-length cutting device automatically cuts the logs to a fixed length according to the data information detected by the end detection device.

[0019] As a second aspect, the production process of the above-mentioned intelligent log sawing production line includes the following contents:

[0020] S1. Transverse transport of logs, i.e. using a forklift or log grabber or manually placing the logs transversely on the transverse log conveyor line for transverse transport of logs;

[0021] S2. Longitudinal transportation and metal detection of logs, and first screening and separation of logs according to the detection results;

[0022] S3. Cut the sorted logs without metal materials into fixed lengths through a fixed-length cutting device, and perform a second screening and separation on the logs according to the cutting data;

[0023] S4. Performing 3D scanning and modeling of the logs by the first 3D scanning and modeling device, and adjusting the radial angle of the logs entering the first sawing production line and confirming the axial posture of the logs according to the 3D scanning and modeling data;

[0024] S5. Cut and separate the side panels and the middle squares of the logs through the first sawing production line and the second sawing production line;

[0025] S6. The scanning transmission device performs 3D scanning modeling on the intermediate square material, and the slicing device sets parameters according to the 3D scanning modeling data of the intermediate square material, and performs horizontal sheet cutting on the intermediate square material along the axial direction to form a standard plate and / or core plate;

[0026] S7. The screening device sorts the wood panels according to the size of the standard panels and / or core panels, and stacks and stores the sorted wood panels.

[0027] Specifically, the first screening and separation in step S2 includes: if the logs are detected to contain metal substances, they are output through the first discharging conveyor line; if the logs do not contain metal substances, they continue to be transmitted on the longitudinal log conveyor line.

[0028] Specifically, the process of cutting and separating the side board skin material and the middle square material of the log in step S5 includes the following contents:

[0029] S501. The first sawing production line cuts the two sides of the log according to the posture confirmation result and the 3D scanning modeling data of the log to form two sides of the board material and the middle wood, and performs a third screening and separation;

[0030] S502. The turning mechanism turns the intermediate wood obtained in step S4 90° along the axial direction and transports it to the second sawing production line;

[0031] S503. The second 3D scanning and modeling device performs 3D scanning and modeling on the middle wood, and the second sawing production line cuts the remaining side panel leather of the middle wood according to the 3D modeling data of the middle wood to form remaining two side panel leathers and middle square materials, and performs the fourth screening and separation.

[0032] Specifically, the side panel leather separated in step S501 and the side panel leather separated in step S503 are processed as follows:

[0033] Splitting is performed by a plurality of splitting saws to form a plurality of skinned boards;

[0034] After the skin-on board is cut off, the edge of the skin-on board is removed by an edge cleaner to form a skin-free board.

[0035] The skinless boards are moved and stored, and the cleaned skin edges are transported to the crushing equipment for crushing.

[0036] As a third aspect, a log sawing method adopts the log intelligent sawing production line as described above, and the cutting method comprises the following steps:

[0037] Taking the tree core axis of the log as the central axis, vertical cuts are made along the central axis on both sides of the log to separate two side board leathers and a middle wood;

[0038] Flip the middle wood 90 degrees along the wood core, and place one of the cut surfaces of the middle wood as the bottom surface;

[0039] Cut the two sides of the middle wood vertically along the central axis to separate the remaining two side board leathers and one middle square material;

[0040] The middle square material is cut horizontally along the central axis in multiple layers with a certain thickness to be divided into multiple layers of standard boards and / or core boards; at the same time, the side board skin material is split and edge-cleared.

[0041] The beneficial effects of the intelligent log sawing production line, production process and sawing method of the present invention are:

[0042] The present invention utilizes a vertically docked horizontal log conveying line and a vertical log conveying line to change the conveying direction of the logs, does not require an external rotating device, and saves costs. The middle square material and the side panel leather material are first separated by a first sawing production line, a turning mechanism, and a second sawing production line, and then the middle square material and the side panel leather material are cut according to their respective characteristics using their own specific processing methods, abandoning the traditional processing method of directly cutting the logs horizontally layer by layer, and does not require cutting and edge cleaning of each piece of wood. In addition, the present invention adopts a method of simultaneously cutting the side leather material of the log on both sides and adopts an axial horizontal cutting method of the cutting production line for the middle square material, which improves production stability while greatly reducing the processing procedures of log sawing.

[0043] The present invention arranges a first 3D scanning modeling device in front of a first sawing production line, and a first angular adjustment device in the first sawing production line automatically adjusts the radial angle of the log according to the posture model constructed for the log by the first 3D scanning modeling device, so that the posture of the log is compatible with the sawing of the first double-sided sawing equipment; a second 3D scanning modeling device is arranged in front of the second sawing production line, and a second angular adjustment device in the second sawing production line automatically adjusts the radial angle of the middle wood according to the posture model constructed for the middle wood by the second 3D scanning modeling device, so that the posture of the middle wood is compatible with the sawing of the second double-sided sawing equipment; the posture of the log and the middle wood is modeled by multiple 3D scanning modeling devices, and the first sawing production line and the second sawing production line are cooperated to realize the automatic production of logs, so as to solve the problem that the sawing of logs in the prior art depends on manual experience, open up a new method for log sawing, greatly reduce the investment of labor costs and improve the efficiency of log sawing.

[0044] The present invention provides a metal detection mechanism on the longitudinal log conveyor line to detect whether the log contains metal materials. The metal detection function is integrated, and metal foreign matter in the log can be identified online and removed offline, thereby ensuring product quality and production safety. A screening device is provided at the output end of the cutting production line to automatically classify the sawn boards according to specifications, eliminating the need for manual material selection and classification, thereby reducing manual labor content and labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0046] Figure 1 It is a flow chart of the intelligent log sawing production line according to an embodiment of the present invention.

[0047] Figure 2 It is an installation diagram of a transverse log conveyor line and a longitudinal log conveyor line according to an embodiment of the present invention.

[0048] Figure 3 It is an installation diagram of the first sawing production line and the second sawing production line according to an embodiment of the present invention.

[0049] Figure 4 It is a connection diagram of a cutting production line according to an embodiment of the present invention.

[0050] Figure 5 It is a schematic diagram of the structure of the screening device of this embodiment.

[0051] Figure 6 It is a flow chart of the steps of the log production process of this embodiment.

[0052] Figure 7 It is a flow chart of log sawing in this embodiment.

[0053] In the figure: 1. horizontal log conveyor line, 2. vertical log conveyor line, 3. first sawing production line, 31. first angular adjustment device, 32. first double-sided sawing equipment, 33. first sorting mechanism, 4. turning mechanism, 5. second sawing production line, 51. second angular adjustment device, 52. second double-sided sawing equipment, 53. second sorting mechanism, 6. cutting production line, 7. screening device, 71. visual recognition module, 72. screening and conveying module, 73. separation and storage mechanism, 8. fixed-length cutting device, 9. first 3D scanning modeling device, 10. second 3D scanning modeling device, 20. scanning and transmission device, 201. first longitudinal scanning conveyor line, 202. horizontal scanning conveyor line, 203. second longitudinal scanning conveyor line, 204. depth camera, 30. metal detection mechanism, 40. first discharging conveyor line, 50. second discharging conveyor line, 60. end detection device, 70. side panel leather processing line, 80. crushing device. DETAILED DESCRIPTION

[0054] 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.

[0055] like Figure 1-Figure 5The specific embodiment of the intelligent log sawing production line of the present invention shown comprises: a horizontal log conveying line 1, a longitudinal log conveying line 2, a first sawing production line 3, a turning mechanism 4, a second sawing production line 5, a cutting production line 6 and a screening device 7 which are arranged in sequence and in correspondence. Specifically, the tail end of the horizontal log conveying line 1 is vertically connected with the head end of the longitudinal log conveying line 2, a fixed-length cutting device 8 is arranged on the longitudinal log conveying line 2, a first 3D scanning modeling device 9 for 3D scanning modeling of logs is arranged at the connection between the longitudinal log conveying line 2 and the first sawing production line 3; a second 3D scanning modeling device 10 is arranged at the connection between the turning mechanism 4 and the second sawing production line 5; and a scanning transmission device 20 is arranged between the second sawing production line 5 and the cutting production line 6.

[0056] When in use, the first sawing production line 3 cuts the log into three side board skins and middle wood vertically along the axial direction according to the modeling data obtained by the first 3D scanning modeling device 9; the second sawing production line 5 cuts the middle wood into three side board skins and middle square materials vertically along the axial direction according to the modeling data obtained by the second 3D scanning modeling device 10; the cutting production line 6 performs horizontal fixed-thickness multi-layer cutting of the middle square materials according to the output data of the scanning transmission device 20 to form standard boards and / or core boards; the screening device 7 screens the standard boards and / or core boards according to the sizes, and classifies them for mobile stacking and storage.

[0057] In the prior art, the sawing and cutting process of logs requires the operation of experienced masters throughout the whole process, especially the process of log rotation. If the initial axial angle of the log is not found well during sawing, the yield rate and the economic value will be directly affected. The present invention uses a vertically docked horizontal log conveyor line 1 and a longitudinal log conveyor line 2 to change the conveying direction of the logs, and no external rotating device is required, which saves costs. The middle square material and the side panel leather material are first separated by the first sawing production line 3, the turning mechanism 4 and the second sawing production line 5, and then the middle square material and the side panel leather material are cut according to their respective characteristics by their respective specific processing methods, abandoning the traditional processing method of directly cutting the logs horizontally layer by layer, and there is no need to cut and clean the edges of each piece of wood. In addition, the present invention adopts the method of cutting the side leather material of the log on both sides at the same time and the method of axial horizontal cutting of the middle square material by the cutting production line, which improves the production stability while greatly reducing the processing procedures of log sawing.

[0058] For the sake of production safety, this embodiment is also provided with a metal detection mechanism 30, a first discharging conveyor line 40 and a second discharging conveyor line 50 for detecting metal materials in logs on the longitudinal log conveyor line 2. When in use, if the metal detection mechanism 30 detects that the log contains metal materials, it will enter the first discharging conveyor line 40 for output and manual processing; the scraps after the logs are cut to a fixed length will be transported to the second discharging conveyor line 50 for output and manual processing. With the integrated metal detection function, metal foreign bodies in the logs can be identified online and removed offline, and product quality and production safety are guaranteed. It is avoided that metal foreign bodies such as nails in the logs are difficult to effectively identify or cannot be identified by the naked eye, which may easily break the saw blade during cutting and processing, and even cause splashing to form a safety accident.

[0059] like Figure 3 As shown, the first sawing production line 3 in this embodiment includes a first angular adjustment device 31 arranged at the tail end of the longitudinal log conveying line 2, a first double-sided sawing device 32 arranged at the output end of the first angular adjustment device 31, and a first sorting mechanism 33 arranged at the output end of the first double-sided sawing device 32 for separating and conveying the two side board leather materials and the middle wood. The second sawing production line 5 includes a second angular adjustment device 51 arranged at the output end of the flipping mechanism 4, a second double-sided sawing device 52 arranged at the output end of the second angular adjustment device 51, and a second sorting mechanism 53 arranged at the output end of the second double-sided sawing device 52 for separating and conveying the remaining two side board leather materials and the middle square material. It is further explained that the side board leather materials in this embodiment enter the side board leather material processing line through the first sorting mechanism 33 and the second sorting mechanism 53 for splitting and edge cleaning.

[0060] In this embodiment, a first 3D scanning modeling device is arranged in front of the first sawing production line 3. The first angular adjustment device 31 in the first sawing production line 3 automatically adjusts the radial angle of the log according to the posture model constructed for the log by the first 3D scanning modeling device 9, so that the posture of the log is compatible with the sawing of the first double-sided sawing device 32. A second 3D scanning modeling device is arranged in front of the second sawing production line. The second angular adjustment device 51 in the second sawing production line 5 automatically adjusts the radial angle of the intermediate wood according to the posture model constructed for the intermediate wood by the second 3D scanning modeling device 10, so that the posture of the intermediate wood is compatible with the sawing of the second double-sided sawing device 32. In this embodiment, posture modeling of logs and intermediate wood is performed by multiple 3D scanning modeling devices, and the first sawing production line 3 and the second sawing production line 5 are cooperated to realize the automatic production of logs, so as to solve the problem of radial angle adjustment and sawing of logs relying on manual experience in the prior art, open up a new method for log sawing, greatly reduce the investment of labor costs and improve the efficiency of log sawing.

[0061] See also Figure 3, the first sorting mechanism 33 and the second sorting mechanism 53 both include transverse and longitudinal conveying lines. The transverse conveying line of the first sorting mechanism 33 is used to convey the side panel leather material, and the longitudinal conveying line of the first sorting mechanism 33 is used to convey the middle wood to the turning mechanism 4. Several splitting saws are arranged on the transverse conveying line of the first sorting mechanism 33 to perform multi-layer cutting on the side panel leather material entering the splitting saw. The longitudinal conveying line of the second sorting mechanism 53 is used to convey the middle square material to the cutting production line 6, and the transverse conveying line in the second sorting mechanism 53 conveys the side panel leather material to the transverse conveying line of the first sorting mechanism 33 through the conveying mechanism for multi-layer cutting. It should be further explained here that the leather-bearing board cut by the splitting saw is moved to the edge cleaning processing line by manual labor and the conveying mechanism, and the edge skin of the leather-bearing board is cleaned by the edge cleaning machine, and the leather-free board is then conveyed and stored. It should be understood that the conveying mechanism, splitting saw and edge cleaning machine used in this embodiment are structures that are easily obtained by those skilled in the art, and this structure will not be described in detail here.

[0062] In order to process the cleaned edge skin, in this embodiment, at the end of the edge cleaning processing line and the first transverse conveying line, a crushing device 80 connected by the conveying line is used to crush the edge skin in real time and store it for later use. The cutting production line 6 in this embodiment adopts a horizontal multi-head band saw cutting device to perform horizontal axial cutting on the middle square material. The horizontal multi-head band saw cutting device is any structure that can be designed by a person skilled in the art according to the use requirements, and the specific structure of the horizontal multi-head band saw cutting device is not described in detail here.

[0063] It should be further explained that the transverse log conveyor line 1 in this embodiment is provided with an end detection device 60 for detecting the length and the position of the ends of the logs; the fixed-length cutting device 8 automatically cuts the logs into fixed-length pieces according to the data information detected by the end detection device 60.

[0064] like Figure 4 As shown, the scanning transmission device 20 in this embodiment includes a first longitudinal scanning conveyor line 201 connected to the output end of the intermediate square material in the second sorting mechanism 53, a transverse scanning conveyor line 202 connected to the first axial scanning conveying assembly, a second longitudinal scanning conveyor line 203 connected to the output end of the transverse scanning conveying assembly, and depth cameras 204 arranged on both sides of the transverse scanning conveyor line 202, wherein the output end of the second longitudinal scanning conveyor line 203 cooperates with the feeding end of the cutting production line 6. When in use, the two depth cameras 204 collect the size of the intermediate square material and provide data for subsequent cutting. The screening device includes a screening conveying module 72, a visual recognition module 71 and a plurality of separation storage mechanisms 73. The visual recognition module 71 collects the size information of the wood sheet in real time and sorts it into the corresponding separation storage mechanism 73 according to the size data of the wood sheet.

[0065] like Figure 5 As shown, the production process based on the above-mentioned log intelligent sawing production line includes the following contents:

[0066] S1. Transverse transport of logs, that is, the logs are placed transversely on the transverse log conveyor line 1 by forklift or log grabber or manually for transverse transport of logs;

[0067] S2. Longitudinal transportation and metal detection of logs, and first screening and separation of logs according to the detection results;

[0068] S3. The sorted logs free of metal materials are cut into fixed lengths by a fixed-length cutting device 8, and the logs are screened and separated for a second time according to the cutting data;

[0069] S4. Performing 3D scanning and modeling of the logs by the first 3D scanning and modeling device 9, and adjusting the radial angle of the logs entering the first sawing production line 3 and confirming the axial posture of the logs according to the 3D scanning and modeling data;

[0070] S5. The side panels and the middle squares of the logs are cut and separated by the first sawing production line 3 and the second sawing production line 5;

[0071] S6. The scanning transmission device 20 performs 3D scanning modeling on the intermediate square material, and the slicing device sets parameters according to the 3D scanning modeling data of the intermediate square material, and performs horizontal sheet cutting along the axial direction on the intermediate square material to form a standard plate and / or core plate;

[0072] S7. The screening device 7 sorts the wood panels according to the size of the standard panels and / or core panels, and stacks and stores the sorted wood panels.

[0073] Wherein, when the logs are conveyed on the transverse log conveying line 1 in step S1, the end detection device 60 detects the length and the position of the ends of the logs, and provides data information for the subsequent fixed-length cutting device.

[0074] The first screening and separation in step S2 includes: if the logs are detected to contain metal substances, they are output through the first discharging conveyor line 40; if the logs do not contain metal substances, they continue to be transported on the longitudinal log conveyor line 2.

[0075] The first screening and separation of logs in step S3 includes the following contents: if the cut length of the logs meets the set length, they enter the first sawing production line 3 ; if the cut length of the logs is less than the set length, they enter the second discharging conveying line 50 .

[0076] The process of cutting and separating the side board skin material and the middle square material of the log in step S5 includes the following contents:

[0077] S501. The first sawing production line 3 performs board cutting on both sides of the log according to the posture confirmation result and the 3D scanning modeling data of the log to form board materials on both sides and the middle wood, and performs a third screening and separation;

[0078] S502. The turning mechanism 4 turns the intermediate wood obtained in step S4 90° along the axial direction and transports it to the second sawing production line 5;

[0079] S503. The second 3D scanning and modeling device 10 performs 3D scanning and modeling on the middle wood, and the second sawing production line 5 cuts the remaining side board leather of the middle wood according to the 3D modeling data of the middle wood to form remaining two side board leathers and middle square materials, and performs the fourth screening and separation.

[0080] The side panel leather separated in step S501 and the side panel leather separated in step S503 are processed as follows: split the panels using a plurality of splitting saws to form a plurality of panels with skin, cut the panels with skin, use an edge cleaner to remove the edges of the panels with skin to form panels without skin, move the panels without skin for storage, and transport the cleaned edges of the panels to a crushing device for crushing.

[0081] The specific production process of the present embodiment based on the above-mentioned log intelligent sawing production line is as follows: First, the logs are loaded onto the log transverse conveying line by a forklift or a wood grabber or manually. During the log transverse conveying stage, the end detection device 60 is used to detect the length and the position of the large and small ends of the logs. The logs are separated into single pieces by the divider and loaded onto the longitudinal log conveying line, that is, the logs are switched from transverse conveying to conveying along the length direction. The metal detection mechanism 30 and the fixed-length cutting mechanism are sequentially arranged on the longitudinal log conveying line 2. The logs are firstly metal-detected during the longitudinal conveying process, and the through-type detection method is adopted. The logs without metal foreign bodies continue to be conveyed downward, and the logs containing metal foreign bodies are discharged from the unloading station of the first discharging conveying line 40, and are manually collected and processed separately. The logs without metal continue to be conveyed to the next process, and the cutting / uninterrupted processing is carried out according to the order and process requirements. The scraps after the logs are cut to a fixed length are conveyed to the second discharging conveying line 50 for output and manual processing.

[0082] Secondly, the broken / unbroken logs continue to be transported and circulated, the first 3D scanning modeling device 9 is used to perform 3D scanning on the logs, and the outline of the logs is modeled. The system algorithm analyzes the model and gives an initial angle suitable for sawing. The first angular adjustment device 31 in the first sawing production line 3 rotates the logs, and the axial posture of the rotated logs is confirmed again by the visual system. If the axial posture is incorrect, the actuator continues to rotate the logs, and the axial posture of the rotated logs is confirmed by the visual system again until it meets the requirements. Of course, a discharging mechanism can also be set up. When the axial angle posture still does not meet the requirements after multiple times, the side pushing mechanism pushes the logs off the line for manual processing, and the logs with the posture meeting the requirements continue to be transported and circulated to the next process. The saw blades on both sides of the first double-sided sawing device 32 can be controlled separately, and their positions are automatically adjusted according to the log data of the first 3D scanning modeling device 9 and the position data given by the receiving algorithm. The logs complete the first sawing, and each log is formed into three parts after the first sawing, the side board leather on both sides and the middle wood in the middle part. The two pieces of side panel leather automatically fall off the production line through the first sorting mechanism 33 and are transported to the side panel leather processing line 70. The middle wood continues to be transported to the next process. The flipping mechanism 4 flips the middle wood 90° along the axis of the tree core and transports it laterally. The second 3D scanning modeling device 10 is used to perform a second 3D scan to model its outer contour. The algorithm analyzes the model and sends the knife position data suitable for sawing to the second double-sided sawing device 52. The saw blade position of the second double-sided sawing device 52 is automatically adjusted to saw the middle wood. After processing, the middle wood is also formed into three parts, the side panel leather on both sides and a section of middle square material. The two pieces of side panel leather automatically fall off the production line through the second sorting mechanism 53 and are transported to the panel leather processing line. The middle square material continues to be transported to the next process.

[0083] Finally, the intermediate square material is visually identified by the scanning and transmission device 20 to determine the position of the tree core. Combined with the thickness of the sales order board, the saw blade height in the cutting device is determined by calculation, and the saw blade height data is sent to the horizontal band saw in the cutting device. The intermediate square material is processed by the horizontal band saw to form a variety of thicknesses of standard boards and / or core boards. After the material is discharged, the standard boards and / or core boards are identified by the visual system and transferred to the corresponding material channel for unloading and stacking. At the same time, the side panel leather is processed into multiple thin sheets by the splitting saw, and then cut by the cutting saw, and finally processed by the edge cleaning machine into thin boards of various specifications, which are collected and stacked, and the cleaned edges and corners are transported to the crushing device 80 for crushing.

[0084] A log sawing method based on the above-mentioned log intelligent sawing production line comprises the following steps: Figure 7, with the tree core axis of the log as the central axis, vertical cuts are made on both sides of the log along the central axis to separate two side panel leathers and a middle wood; the middle wood is turned 90 degrees along the wood core, and a cut surface of the middle wood is placed as the bottom surface; vertical cuts are made on both sides of the middle wood along the central axis to separate the remaining two side panel leathers and a middle square material; the middle square material is cut horizontally along the central axis with multiple layers of fixed thickness to separate it into multiple layers of specification boards and / or core boards; at the same time, the side panel leather is split and edge cleared.

[0085] This embodiment separates the outer skin and the middle part of the log by cutting twice and on four sides, performs targeted and unique processing on the side skin boards and the middle square materials on the four sides, and the side skin boards and the middle square materials can be processed simultaneously, thus opening up a new method for log sawing and greatly improving the log sawing efficiency and product standardization.

[0086] 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 log intelligent sawing production line, characterized in that: include: A transverse log conveying line (1), a longitudinal log conveying line (2), a first sawing production line (3), a turning mechanism (4), a second sawing production line (5), a cutting production line (6) and a screening device (7) are arranged in sequence; The tail end of the transverse log conveying line (1) is vertically connected to the head end of the longitudinal log conveying line (2); a fixed-length cutting device (8) is provided on the longitudinal log conveying line (2); a first 3D scanning modeling device (9) for performing 3D scanning modeling on logs is provided at the connection between the longitudinal log conveying line (2) and the first sawing production line (3); a second 3D scanning modeling device (10) is provided at the connection between the turning mechanism (4) and the second sawing production line (5); a scanning transmission device (20) is provided between the second sawing production line (5) and the cutting production line (6); The first sawing production line (3) vertically cuts the log into three parts along the axial direction to obtain two side board skin materials and middle wood according to the modeling data obtained by the first 3D scanning modeling device (9); the second sawing production line (5) vertically cuts the middle wood into three parts along the axial direction to obtain the remaining two side board skin materials and middle square materials according to the modeling data obtained by the second 3D scanning modeling device (10); the cutting production line (6) performs horizontal fixed-thickness multi-layer cutting on the middle square materials according to the output data of the scanning transmission device (20) to form standard boards and / or core boards; the screening device (7) screens the standard boards and / or core boards according to their sizes, and classifies them for mobile stacking and storage.

2. The intelligent log sawing production line according to claim 1, characterized in that: The longitudinal log conveyor line (2) is also provided with a metal detection mechanism (30) for detecting metal materials of the logs, a first discharging conveyor line (40) and a second discharging conveyor line (50); When in use, if the metal detection mechanism (30) detects that the log contains metal material, it will enter the first discharging conveyor line (40) for output and manual processing; the scraps after the log is cut into a fixed length will be transported to the second discharging conveyor line (50) for output and manual processing.

3. The intelligent log sawing production line according to claim 2 is characterized by: The first sawing production line (3) comprises a first angular adjustment device (31) arranged at the tail end of the longitudinal log conveying line (2), a first double-sided sawing device (32) arranged at the output end of the first angular adjustment device (31), and a first sorting mechanism (33) arranged at the output end of the first double-sided sawing device (32) for separating and conveying the two side board leather and the middle wood; The second sawing production line (5) comprises a second angular adjustment device (51) arranged at the output end of the turning mechanism (4), a second double-sided sawing device (52) arranged at the output end of the second angular adjustment device (51), and a second sorting mechanism (53) arranged at the output end of the second double-sided sawing device (52) for separating and transporting the remaining two side board leather materials and the middle square materials; The side panel leather material passes through a first sorting mechanism (33) and a second sorting mechanism (53) and enters a side panel leather material processing line for layer splitting and edge cleaning.

4. The intelligent log sawing production line according to claim 3 is characterized by: The scanning transmission device (20) comprises a first longitudinal scanning conveyor line (201) connected to the output end of the intermediate square material in the second sorting mechanism (53), a transverse scanning conveyor line (202) connected to the first axial scanning conveyor assembly for transmission, a second longitudinal scanning conveyor line (203) connected to the output end of the transverse scanning conveyor assembly for transmission, and depth cameras (204) arranged on both sides of the transverse scanning conveyor line (202); The output end of the second longitudinal scanning conveyor line (203) cooperates with the feeding end of the cutting production line (6) for conveying.

5. The intelligent log sawing production line according to claim 2, characterized in that: The transverse log conveying line (1) is provided with an end detection device (60) for detecting the length and the position of the large and small ends of the logs; the fixed-length cutting device (8) automatically cuts the logs to a fixed length according to the data information detected by the end detection device (60).

6. A production process using a log intelligent sawing production line according to any one of claims 2 to 4, characterized in that: Includes the following: S1. Transverse transport of logs, that is, using a forklift or a wood grabber or manually placing the logs transversely on the transverse log conveyor line (1) for transverse transport of logs; S2. Longitudinal transportation and metal detection of logs, and first screening and separation of logs according to the detection results; S3. The selected logs free of metal materials are cut into fixed lengths by a fixed-length cutting device (8), and the logs are screened and separated for a second time according to the cutting data; S4. Performing 3D scanning and modeling of the logs by the first 3D scanning and modeling device (9), and adjusting the radial angle of the logs entering the first sawing production line (3) and confirming the axial posture of the logs according to the 3D scanning and modeling data; S5. The side panels and the middle squares of the logs are cut and separated by the first sawing production line (3) and the second sawing production line (5); S6. The scanning transmission device (20) performs 3D scanning modeling on the intermediate square material, and the slicing device sets parameters according to the 3D scanning modeling data of the intermediate square material, and cuts the intermediate square material horizontally along the axial direction to form a standard plate and / or core plate; S7. The screening device (7) sorts the wood panels according to the size of the standard panels and / or core panels, and stacks and stores the sorted wood panels.

7. The production process of the intelligent log sawing production line according to claim 6, characterized in that: The first screening and separation in step S2 includes: if the logs are detected to contain metal substances, they are output through the first discharging conveyor line (40); if the logs do not contain metal substances, they continue to be transported on the longitudinal log conveyor line (2).

8. The production process of the intelligent log sawing production line according to claim 6, characterized in that: The process of cutting and separating the side board skin material and the middle square material of the log in step S5 includes the following contents: S501. The first sawing production line (3) performs a two-side board cutting of the log according to the posture confirmation result and the 3D scanning modeling data of the log to form two-side board materials and the middle wood, and performs a third screening and separation; S502. The turning mechanism (4) turns the intermediate wood obtained in step S4 90° along the axial direction and transports it to the second sawing production line (5); S503. The second 3D scanning and modeling device (10) performs 3D scanning and modeling on the middle wood, and the second sawing production line (5) cuts the remaining side panel leather of the middle wood according to the 3D modeling data of the middle wood to form the remaining two side panel leathers and the middle square material, and performs the fourth screening and separation.

9. The production process of the intelligent log sawing production line according to claim 8, characterized in that: The side panel leather separated in step S501 and the side panel leather separated in step S503 are processed as follows: Splitting is performed by a plurality of splitting saws to form a plurality of skinned boards; After the skin-on board is cut off, the edge of the skin-on board is removed by an edge cleaner to form a skin-free board. The skinless boards are moved and stored, and the cleaned skin edges are transported to the crushing equipment for crushing.

10. A method for sawing logs, characterized in that: Using the intelligent log sawing production line according to any one of claims 1 to 5, the cutting method comprises the following steps: Taking the tree core axis of the log as the central axis, vertical cuts are made along the central axis on both sides of the log to separate two side board leathers and a middle wood; Flip the middle wood 90 degrees along the wood core, and place one of the cut surfaces of the middle wood as the bottom surface; Cut the two sides of the middle wood vertically along the central axis to separate the remaining two side board leathers and one middle square material; The middle square material is cut horizontally along the central axis in multiple layers with a certain thickness to be divided into multiple layers of standard boards and / or core boards; at the same time, the side board skin material is split and edge-cleared.

Images