WO2020006674A1 - 一种自动原木开合锯机 - Google Patents

一种自动原木开合锯机 Download PDF

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Publication number
WO2020006674A1
WO2020006674A1 PCT/CN2018/094188 CN2018094188W WO2020006674A1 WO 2020006674 A1 WO2020006674 A1 WO 2020006674A1 CN 2018094188 W CN2018094188 W CN 2018094188W WO 2020006674 A1 WO2020006674 A1 WO 2020006674A1
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WIPO (PCT)
Prior art keywords
log
cutting
closing
saw
identification
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PCT/CN2018/094188
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English (en)
French (fr)
Inventor
周富涛
周富樑
周富海
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福建省得力机电有限公司
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Application filed by 福建省得力机电有限公司 filed Critical 福建省得力机电有限公司
Priority to PCT/CN2018/094188 priority Critical patent/WO2020006674A1/zh
Publication of WO2020006674A1 publication Critical patent/WO2020006674A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B25/00—Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/02—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/29—Details; Component parts; Accessories

Definitions

  • the invention relates to the field of automatic log opening and closing sawing machines, in particular to an automatic log opening and closing sawing machine.
  • the existing automatic log opening and closing saws have the following defects when cutting logs:
  • the automatic log opening and closing saw requires manual feeding, which is prone to jitter during the feeding process, which has hidden safety hazards and is not convenient for users to use;
  • the automatic log opening and closing saw machine cannot freely adjust the middle size according to the log size, the applicability is small, and the log yield is reduced.
  • the invention proposes an automatic log opening and closing saw machine.
  • the automatic log opening and closing saw machine realizes automatic feeding and solves the phenomenon that the existing automatic log opening and closing saw machine needs manual feeding when cutting logs and is prone to jitter, which is convenient for users.
  • the size of the cutting middle is automatically adjusted according to the size of the log when the log is cut, and the log yield is improved.
  • An automatic log opening and closing saw includes a frame, a conveying mechanism for conveying logs, a cutting mechanism for cutting logs, and an identification mechanism for identifying the diameter of the logs;
  • the frame includes a base and a fixed connection to the base A fixed frame at the top;
  • the cutting mechanism includes two cutting bodies disposed on opposite sides of the fixed frame and oppositely arranged; the upper end of the base is provided with a horizontal slide rail horizontally; the two cutting bodies are slidably connected above the base through the horizontal slide rails;
  • the cutting body includes a saw blade group and an asynchronous motor for driving the saw blade group to rotate;
  • the saw blade group is composed of a plurality of saw blades arranged vertically and parallel to each other; and the two saw blade groups are respectively composed of a driving mechanism The drive moves in horizontal, lateral and vertical directions.
  • the driving mechanism comprises a hydraulic rod driving the vertical lifting of the cutting body and a screw rod arranged below the cutting body and parallel to the transverse slide rail; the lower end of the cutting body is fixedly connected with a nut; The nut is sleeved outside the screw rod and is threadedly connected with the screw rod; the screw rod is coaxially connected with a rotating shaft of a servo motor; the rotation of the rotating shaft of the servo motor causes the screw rod to rotate to drive the cutting body to slide along the lateral slide rail; the hydraulic pressure Both the lever and the servo motor are electrically connected to a processor; the processor sends electrical signals to control the expansion and contraction of the hydraulic lever and controls the forward and reverse rotation of the servo motor, respectively.
  • the conveying mechanism includes a chain conveying rack horizontally and longitudinally arranged on a fixed frame; the identifying mechanism includes an identifying passage; the identifying passage, the cutting body and a traction mechanism are sequentially arranged along the conveying direction of the chain conveying rack; the The traction mechanism fixes the front end of the log and moves it along the conveying direction of the chain conveyor; a 3D scanning device is provided at the entrance of the identification channel; and the 3D scanning device is electrically connected to the processor.
  • the identification mechanism further includes a color identification device; the color identification device is disposed between the identification channel and the cutting body; and the color identification device is electrically connected to the processor.
  • the color recognition device includes two rotating heads; the two rotating heads are respectively arranged above and below the chain conveyor, and the rotating shafts of the two rotating heads are arranged horizontally in the horizontal direction;
  • a DC motor drives rotation;
  • a color sensor is provided on the outside of the rotating head;
  • an angle sensor is provided on the rotating head of the rotating head; and the color sensor and the angle sensor are electrically connected to the processor.
  • the fastening mechanism comprises a transmission rod disposed obliquely above the chain conveyor; the upper end of the transmission rod is hinged to the fixed frame, and the lower end is rotatably connected to a movable pressing wheel; The lower end of the pressure roller abuts the upper end surface of the log; the transmission rod is hinged to one end of a gas spring near the movable pressure wheel; the other end of the gas spring is hinged to the top surface of the fixed frame; the outer edge of the movable pressure wheel is opened Has anti-skid teeth.
  • the traction mechanism includes a hook for hooking the front end of a log and a hinge connected to the hook; the hinge is wound on a winch; and the winch is driven to rotate by a three-phase motor.
  • the automatic log opening and closing saw machine of the present invention realizes automatic feeding, and solves the phenomenon that the existing automatic log opening and closing saw machine needs manual feeding when cutting logs, which is prone to jitter, and is convenient for users.
  • the automatic log opening and closing saw according to the present invention can adjust the servo control of the distance between the left and right saw blades according to different log widths, adjust the middle of the cut logs, improve processing efficiency, and eliminate waste of log resources.
  • the automatic wood opening and closing saw machine of the present invention has two sets of color sensors and angle sensors arranged one above the other and arranged in combination to form a color recognition device.
  • the recognition accuracy is high, the reliability is strong, the size of the log can be quickly identified, and the adjustment is convenient. Cut the middle square specifications.
  • the automatic log opening and closing saw of the present invention has excellent structure, ingenious design and strong practicability.
  • FIG. 1 is a schematic structural diagram of an automatic log opening and closing saw according to the present invention in which a bark peeling mechanism is omitted;
  • FIG. 2 is a left side sectional view of the automatic log opening and closing saw of the present invention
  • FIG. 3 is a schematic front view structure diagram of the automatic log opening and closing saw of the present invention.
  • FIG. 4 is a partially enlarged schematic view at A in FIG. 2; FIG.
  • FIG. 5 is a schematic structural diagram of a color recognition device of the automatic log opening and closing saw of the present invention.
  • FIG. 6 is a schematic diagram of an algorithm for identifying a log size by a color recognition device of the automatic log opening and closing saw of the present invention
  • FIG. 7 is a schematic structural diagram of a traction mechanism of the automatic log opening and closing saw of the present invention.
  • FIG. 8 is an electric signal flow chart of the automatic log opening and closing saw of the present invention.
  • an automatic log opening and closing saw includes a frame, a conveying mechanism for conveying the log 99, a cutting mechanism for cutting the log 99, and an identification mechanism for identifying the diameter of the log 99;
  • the frame includes a base 1 and a fixing frame 2 fixedly connected to the top of the base 1;
  • the cutting mechanism includes two cutting bodies 4 disposed on opposite sides of the fixing frame 2 and oppositely arranged;
  • a horizontal slide rail is horizontally arranged on the upper end of the base 1 41;
  • the two cutting bodies 4 are slidably connected to both sides above the base 1 through a lateral slide rail 41;
  • the cutting body 4 includes a saw blade group 45 and an asynchronous motor 46 for driving the saw blade group 45 to rotate;
  • the saw The blade group 45 is composed of a plurality of saw blades arranged vertically and parallel to each other; the two blade groups 45 are respectively driven by a driving mechanism to move in the horizontal and vertical directions.
  • the driving mechanism includes a hydraulic rod 47 for driving the vertical cutting of the cutting body 4 and a screw rod 42 provided below the cutting body 4 and parallel to the lateral slide rail 41; the cutting body 4 The lower end is fixedly connected with a nut 43; the nut 43 is sleeved outside the screw rod 42 and is threadedly connected with the screw rod 42; the screw rod 42 is coaxially connected with a rotating shaft of a servo motor 44; the rotating shaft of the servo motor 44 rotates the wire
  • the rotation of the rod 42 drives the cutting body 4 to slide along the lateral slide rail 41; the asynchronous motor 46 is arranged in a casing, and the lower end of the casing is connected to the upper end of the hydraulic rod 47 which is vertically arranged; the lower end of the hydraulic rod 47 is A horizontal slide rail 471 horizontally and horizontally arranged on the fixed frame 2 is slidably connected; the hydraulic rod 47 and the servo motor 44 are electrically connected to the processor 6; the processor 6 send
  • the conveying mechanism includes a chain conveyor frame 3 horizontally and longitudinally disposed on the fixed frame 2;
  • the identification mechanism includes an identification channel 51; the identification channel 51, the cutting body 4 and a traction mechanism convey along the chain conveyance frame 3. The direction is set in order; the traction mechanism fixes the front end of the log 99 and moves it along the conveying direction of the chain conveyor 3; a 3D scanning device 52 is provided at the entrance of the identification channel 51; the 3D scanning device 52 and the processor 6 ⁇ ⁇ 6 electrical connections.
  • the identification mechanism further includes a color identification device; the color identification device is disposed between the identification channel 51 and the cutting machine body 4; the color identification device includes two rotating heads 53; and the two rotating heads 53
  • the rotating heads of the two rotary heads 53 are arranged horizontally in the horizontal direction; the rotating heads 53 are driven by a direct current motor 54 to rotate; the outer sides of the rotating heads 53 are provided.
  • a color sensor 55; an angle sensor 56 is provided at the rotation axis of the rotating head; the color sensor 55 and the angle sensor 56 are both electrically connected to the processor 6; and the rotating head 53 is a cylindrical object.
  • the fastening mechanism comprises a transmission rod 81 inclinedly arranged above the chain conveyor frame 3; the upper end of the transmission rod 81 is hinged with the fixed frame 2 and the lower end is rotated with a movable pressure wheel 83 Connected; the rotating shaft of the movable pressure roller 83 is arranged in the horizontal and horizontal direction; the lower end of the movable pressure roller 83 is abutted against the upper end face of the log 99; the position of the transmission rod 81 near the movable pressure roller 83 and the piston of a gas spring 84
  • the lower end of the lever is hinged; the lower end of the cylinder of the gas spring 84 is hinged on the top surface of the fixed frame 2; the outer side of the movable pressure wheel 83 is provided with anti-skid teeth; the transmission lever 81 is affected by the thrust of the gas spring 84 to make the movable pressure wheel below it 83 is closely attached to the upper end surface of the log 99, and plays a role of fasten
  • the invention also includes a method for sawing logs based on an automatic log opening and closing saw, including the following steps:
  • Step 1 Place the log 99 on the chain conveyor 3, and fix the front end of the log 99 with the hook 71 in the traction mechanism;
  • Step 2 When the log 99 passes through the identification channel 51, the 3D scanning device 52 in the identification channel 51 recognizes the size of the log 99 and sends it to the processor 6 for 3D modeling;
  • Step 3 According to the minimum diameter of the log 99 obtained after the 3D modeling, the processor 6 sends electric signals to control the expansion and contraction of the hydraulic rod 47 and the forward and reverse rotation of the servo motor 44 to control the moving positions of the two saw blade groups 45 to control.
  • the position of the saw blade closest to the center of the log 99 in the two saw blade groups 45 that is, the positions of the saw blades at the left and right cutting surfaces of the middle of the log 99, respectively, to control the size of the log 99 middle, and
  • the cutting center of the saw blade is kept at the same level as the center of the log 99.
  • the thickness of the log 99 with a diameter of 50 cm is 40 to 45 cm
  • the thickness of the log 99 with a diameter of 40 cm is 30 to 35 cm.
  • the three-phase motor 74 drives the winch 73 to rotate, and the hinge 72 is wound on the winch 73 so that the log 99 is pulled and moved in the conveying direction of the chain conveyor 3, and the log 99 is continuously cut by the saw blade group 45.
  • a rough cutting step is further included: the raw wood 99 is placed on the chain conveyor 3, and the front end of the raw wood 99 is fixed with the hook 71 in the traction mechanism, and the operator starts through the processor 6
  • the color recognition device performs rough step recognition on the size of the log 99.
  • the upper and lower rotating heads 53 are driven by the DC motor 54 to start rotating.
  • the color sensor 55 and angle sensor 56 on the rotating head 53 detect the color and The angle signal is sent to the processor 6, and the processor 6 processes the data and obtains the size of the log 99. Based on the minimum diameter of the log 99 obtained after the processor 6, the processor 6 sends electrical signals to control the two saw blade groups 45 respectively to move the position to the log. 99 for rough cutting;
  • the invention also includes a method for identifying the size of a log based on a color recognition device, including the following steps:
  • the distance y 1 between the front end of the log 99 to the axis of the rotary head 53 and the axis of the lower rotary head 53 to the chain conveyor 3 The distance y 2 and the distance z between the axes of the two rotating heads 53 can be known; during the rotation of the rotating heads 53, the color sensors 55 on the two rotating heads 53 send the color measured in front of them to the processor 6 in real time.
  • the angle sensor 56 on the two rotating heads 53 sends the rotation angle position of the rotating head 53 to the processor 6 in real time; because the bark of the log 99 is brown and the xylem is light yellow, the color difference between the two is quite large
  • the sensor 55 can easily distinguish the position of the boundary between the two.
  • the angle sensor 56 cooperates to record the position of the upper and lower boundaries of the bark of the log 99 and the xylem and the acute angle in the vertical direction, denoted as ⁇ 1 and ⁇ 2 ; 1 / tan ⁇ 1 and y 2 / tan ⁇ 1 can obtain the vertical distances x 1 and x 2 from the axis of the upper and lower rotary heads 53 to the position of the dividing line; the diameter of the log 99 can be obtained from zx 1 -x 2 .

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)

Abstract

一种自动原木开合锯机，包括机架、用于传送原木（99）的传送机构、用于切割原木（99）的切割机构以及用于识别原木（99）直径大小的识别机构；该机架包括底座（1）和固定连接在底座（1）顶部的固定架（2）；该切割机构包括两设置在固定架（2）两侧且相对设置的切割机体（4）；该底座（1）上端水平设置有横向滑轨（41）；两切割机体（4）通过横向滑轨（41）滑动连接在底座（1）上方两侧；该切割机体（4）包括一锯片组（45）和用于驱动锯片组（45）旋转的异步电机（46）；该锯片组（45）由若干竖直设置且相互平行的锯片组成；两锯片组（45）分别由一驱动机构驱动沿水平横向和竖直方向运动。

Description

一种自动原木开合锯机 技术领域
本发明涉及自动原木开合锯机领域，尤其涉及一种自动原木开合锯机。
背景技术
随着现代机械加工业的发展，对切割的质量、精度要求的不断提高，对提高生产效率、降低生产成本、具有高智能化的自动切割功能的要求也在提升，数控切割机的发展必须要适应现代机械加工业发展的要求。在原木切割加工时需要用到自动原木开合锯机，一般为了提高原木出产率，会将一根原木沿其长度方向切割成位于中部的一个厚度较大的中间方和两侧若干块相对薄一点的板材。
现有自动原木开合锯机在切割原木时具有以下缺陷：
1、自动原木开合锯机需要手动送料，在送料过程中易产生抖动的现象，存在安全隐患，且不便于使用者使用；
2、自动原木开合锯机无法根据原木尺寸自由调节中间方大小，适用性小，也降低了原木出产率。
发明内容
本发明提出一种自动原木开合锯机，该自动原木开合锯机实现了自动送料，解决了现有自动原木开合锯机在切割原木时需要手动送料易产生抖动的现象，便于使用者使用，同时实现切削原木时根据原木的尺寸自动调节切削中间方大小，提高了原木出产率。
本发明的技术方案如下：
一种自动原木开合锯机，包括机架、用于传送原木的传送机构、用于切割原木的切割机构以及用于识别原木直径大小的识别机构；所述机架包括底座和固定连接在底座顶部的固定架；所述切割机构包括两设置在固定架两侧且相对设置的切割机体；所述底座上端水平设置有横向滑轨；两所述切割机体通过横向滑轨滑动连接在底座上方两侧；所述切割机体包括一锯片组和用于驱动锯片组旋转的异步电机；所述锯片组由若干竖直设置且相互平行的锯片组成；两锯片组分别由一驱动机构驱动沿水平横向和竖直方向运动。
进一步的，还包括一处理器；所述驱动机构包括驱动切割机体竖直升降的液压杆和设置在切割机体下方且平行于横向滑轨的丝杆；所述切割机体下端与一螺母固定连接；所述螺母套设在丝杆外并与丝杆螺纹连接；所述丝杆与一伺服电机的转轴同轴连接；伺服电机转轴转动使丝杆旋转带动切割机体沿横向滑轨滑动；所述液压杆和伺服电机均与处理器电连接；所述处理器分别发送电信号控制液压杆伸缩和控制伺服电机正反转。
进一步的，所述传送机构包括水平纵向设置在固定架上的链条输送架；所述识别机构包括识别通道；所述识别通道、切割机体和一牵引机构沿链条输送架传送方向依次设置；所述牵引机构固定住原木前端对其牵引使其沿链条输送架传送方向移动；所述识别通道入口处设置有3D扫描设备；所述3D扫描设备与处理器电连接。
进一步的，所述识别机构还包括一颜色识别装置；所述颜色识别装置设置在识别通道与切割机体之间；所述颜色识别装置与处理器电 连接。
进一步的，所述颜色识别装置包括两旋转云台；两所述旋转云台分别设置在链条输送架的上下方，两所述旋转云台的转轴沿水平方向横向设置；所述旋转云台由一直流电机驱动进行旋转；所述旋转云台外侧设置有颜色传感器；所述旋转云台转轴处设置有角度传感器；所述颜色传感器和角度传感器均与处理器电连接。
进一步的，还包括一紧固机构；所述紧固机构包括一倾斜设置在链条输送架上方的传动杆；所述传动杆上端与固定架铰接，下端与一活动压轮转动连接；所述活动压轮的下端抵靠在原木上端面；所述传动杆靠近活动压轮位置还与一气弹簧的一端铰接；所述气弹簧的另一端铰接在固定架顶面；所述活动压轮外沿开设有防滑齿。
进一步的，所述牵引机构包括一用于勾住原木前端的勾爪和与勾爪连接的铰链；所述铰链缠绕在一绞盘上；所述绞盘由一三相电机驱动转动。
本发明具有如下有益效果：
1、本发明自动原木开合锯机实现了自动送料，解决了现有自动原木开合锯机在切割原木时需要手动送料易产生抖动的现象，便于使用者使用。
2、本发明自动原木开合锯机能够实现根据不同原木宽度调整伺服控制左右锯片的间距，调节切割原木的中间方可调，提高加工效率，杜绝原木资源浪费。
3、本发明自动木材开合锯机具有一上一下分布设置的两套颜色 传感器和角度传感器配合组成颜色识别装置，识别精度高，可靠性强，能够很快识别出原木的尺寸大小，方便调整切割中间方规格。
4、本发明自动原木开合锯机结构优良，设计巧妙，实用性强。
附图说明
图1为本发明自动原木开合锯机的省略了树皮剥离机构的结构示意图；
图2为本发明自动原木开合锯机的左视剖图；
图3为本发明自动原木开合锯机的正视结构示意图；
图4为图2中A处的局部放大示意图；
图5为本发明自动原木开合锯机的颜色识别装置的结构示意图；
图6为本发明自动原木开合锯机的颜色识别装置识别原木尺寸的算法示意图；
图7为本发明自动原木开合锯机的牵引机构的结构示意图；
图8为本发明自动原木开合锯机的电信号流向图。
图中附图标记表示为：
1、底座；2、固定架；3、链条输送架；4、切割机体；41、横向滑轨；42、丝杆；43、螺母；44、伺服电机；45、锯片组；46、异步电机；47、液压杆；471、水平滑轨；51、识别通道；52、3D扫描设备；53、旋转云台；54、直流电机；55、颜色传感器；56、角度传感器；6、处理器；71、勾爪；72、铰链；73、绞盘；74、三相电机；81、传动杆；83、活动压轮；84、气弹簧；99、原木。
具体实施方式
下面结合附图和具体实施例来对本发明进行详细的说明。
参见图1至图8，一种自动原木开合锯机，包括机架、用于传送原木99的传送机构、用于切割原木99的切割机构以及用于识别原木99直径大小的识别机构；所述机架包括底座1和固定连接在底座1顶部的固定架2；所述切割机构包括两设置在固定架2两侧且相对设置的切割机体4；所述底座1上端水平设置有横向滑轨41；两所述切割机体4通过横向滑轨41滑动连接在底座1上方两侧；所述切割机体4包括一锯片组45和用于驱动锯片组45旋转的异步电机46；所述锯片组45由若干竖直设置且相互平行的锯片组成；两锯片组45分别由一驱动机构驱动沿水平横向和竖直方向运动。
进一步的，还包括一处理器6；所述驱动机构包括驱动切割机体4竖直升降的液压杆47和设置在切割机体4下方且平行于横向滑轨41的丝杆42；所述切割机体4下端与一螺母43固定连接；所述螺母43套设在丝杆42外并与丝杆42螺纹连接；所述丝杆42与一伺服电机44的转轴同轴连接；伺服电机44转轴转动使丝杆42旋转带动切割机体4沿横向滑轨41滑动；所述异步电机46设置在一壳体内，所述壳体下端与竖直设置的液压杆47的上端连接；所述液压杆47的下端与一水平横向设置在固定架2上的水平滑轨471滑动连接；所述液压杆47和伺服电机44均与处理器6电连接；所述处理器6分别发送电信号控制液压杆47伸缩和控制伺服电机44正反转；所述处理器6为STM32系列单片机。
进一步的，所述传送机构包括水平纵向设置在固定架2上的链条 输送架3；所述识别机构包括识别通道51；所述识别通道51、切割机体4和一牵引机构沿链条输送架3传送方向依次设置；所述牵引机构固定住原木99前端对其牵引使其沿链条输送架3传送方向移动；所述识别通道51入口处设置有3D扫描设备52；所述3D扫描设备52与处理器6电连接。
进一步的，所述识别机构还包括一颜色识别装置；所述颜色识别装置设置在识别通道51与切割机体4之间；所述颜色识别装置包括两旋转云台53；两所述旋转云台53分别设置在链条输送架3的上下方，两所述旋转云台53的转轴沿水平方向横向设置；所述旋转云台53由一直流电机54驱动进行旋转；所述旋转云台53外侧设置有颜色传感器55；所述旋转云台53转轴处设置有角度传感器56；所述颜色传感器55和角度传感器56均与处理器6电连接；所述旋转云台53为一圆柱体物体。
进一步的，还包括一紧固机构；所述紧固机构包括一倾斜设置在链条输送架3上方的传动杆81；所述传动杆81上端与固定架2铰接，下端与一活动压轮83转动连接；所述活动压轮83的转轴沿水平横向方向设置；所述活动压轮83的下端抵靠在原木99上端面；所述传动杆81靠近活动压轮83位置还与一气弹簧84的活塞杆的下端铰接；所述气弹簧84的气缸的下端铰接在固定架2顶面；所述活动压轮83外沿开设有防滑齿；传动杆81受气弹簧84推力影响使其下方的活动压轮83紧贴在原木99上端面，起紧固原木99的作用。
进一步的，所述牵引机构包括一用于勾住原木99前端的勾爪71 和与勾爪71连接的铰链72；所述铰链72缠绕在一绞盘73上；所述绞盘73由一三相电机74驱动转动。
本发明还包括一种基于自动原木开合锯机的锯原木方法，包括如下步骤：
步骤1、将原木99放置在链条输送架3上，并将原木99前端与牵引机构中的勾爪71固定；
步骤2、原木99经过识别通道51时，识别通道51中的3D扫描设备52识别原木99的尺寸并发送给处理器6进行3D建模；
步骤3、处理器6根据3D建模后得到的原木99最小直径，分别发送电信号控制液压杆47伸缩和控制伺服电机44的正反转，以控制两锯片组45分别移动位置，以控制两锯片组45中最靠近原木99中心的锯片的位置，即分别切削原木99中间方的左右两切削面的锯片的位置，以控制原木99中间方大小，并使锯片组45中的锯片切削中心与原木99中心保持同一水平面；一般地，直径为50cm的原木99开中间方厚度为40～45cm，直径为40cm的原木99开中间方厚度为30～35cm；而后启动牵引机构中的三相电机74并驱动绞盘73旋转，铰链72被卷绕在绞盘73上使得原木99被牵引沿链条输送架3传送方向移动，并由锯片组45将原木99连续切割。
进一步的，在对原木99进行切割之前还包括一粗切步骤：将原木99放置在链条输送架3上，并将原木99前端与牵引机构中的勾爪71固定，操作者通过处理器6启动颜色识别装置，对原木99尺寸进行粗步识别，上下两处的旋转云台53受直流电机54驱动开始旋转， 旋转云台53上的颜色传感器55和角度传感器56实时将其检测到的颜色和角度信号发送给处理器6，处理器6将数据进行处理并得出原木99尺寸；处理器6根据识别后得到的原木99最小直径，分别发送电信号控制两锯片组45分别移动位置对原木99进行粗步切割；
本发明还包括一种基于颜色识别装置识别原木尺寸的方法，包括如下步骤：
参见图6，由于原木99被放置在链条输送架3上的位置是固定的，原木99前端至旋转云台53轴心的距离y 1、下方的旋转云台53轴心至链条输送架3的距离y 2以及两旋转云台53轴心之间的距离z可知；由旋转云台53旋转过程中，两旋转云台53上的颜色传感器55实时将其前方所测得颜色发送给处理器6；同时两旋转云台53上的角度传感器56实时将旋转云台53的旋转角位置发送给处理器6；由于原木99树皮为棕色、木质部为浅黄色，二者颜色差别较大，两颜色传感器55很容易可区分二者分界线位置，由角度传感器56配合记录原木99树皮与木质部的上下两分界线位置与竖直方向的锐角夹角，记为θ 1和θ 2；分别由y 1/tanθ 1和y 2/tanθ 1两式可求得上下两旋转云台53轴心至分界线位置的竖直距离x 1和x 2；由z-x 1-x 2可得原木99直径。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (7)

  1. 一种自动原木开合锯机，其特征在于：包括机架、用于传送原木(99)的传送机构、用于切割原木(99)的切割机构以及用于识别原木(99)直径大小的识别机构；所述机架包括底座(1)和固定连接在底座(1)顶部的固定架(2)；所述切割机构包括两设置在固定架(2)两侧且相对设置的切割机体(4)；所述底座(1)上端水平设置有横向滑轨(41)；两所述切割机体(4)通过横向滑轨(41)滑动连接在底座(1)上方两侧；所述切割机体(4)包括一锯片组(45)和用于驱动锯片组(45)旋转的异步电机(46)；所述锯片组(45)由若干竖直设置且相互平行的锯片组成；两锯片组(45)分别由一驱动机构驱动沿水平横向和竖直方向运动。
  2. 根据权利要求1所述的一种自动原木开合锯机，其特征在于：还包括一处理器(6)；所述驱动机构包括驱动切割机体(4)竖直升降的液压杆(47)和设置在切割机体(4)下方且平行于横向滑轨(41)的丝杆(42)；所述切割机体(4)下端与一螺母(43)固定连接；所述螺母(43)套设在丝杆(42)外并与丝杆(42)螺纹连接；所述丝杆(42)与一伺服电机(44)的转轴同轴连接；伺服电机(44)转轴转动使丝杆(42)旋转带动切割机体(4)沿横向滑轨(41)滑动；所述液压杆(47)和伺服电机(44)均与处理器(6)电连接；所述处理器(6)分别发送电信号控制液压杆(47)伸缩和控制伺服电机(44)正反转。
  3. 根据权利要求2所述的一种自动原木开合锯机，其特征在于：所述传送机构包括水平纵向设置在固定架(2)上的链条输送架(3)； 所述识别机构包括识别通道(51)；所述识别通道(51)、切割机体(4)和一牵引机构沿链条输送架(3)传送方向依次设置；所述牵引机构固定住原木(99)前端对其牵引使其沿链条输送架(3)传送方向移动；所述识别通道(51)入口处设置有3D扫描设备(52)；所述3D扫描设备(52)与处理器(6)电连接。
  4. 根据权利要求3所述的一种自动原木开合锯机，其特征在于：所述识别机构还包括一颜色识别装置；所述颜色识别装置设置在识别通道(51)与切割机体(4)之间；所述颜色识别装置与处理器(6)电连接。
  5. 根据权利要求4所述的一种自动原木开合锯机，其特征在于：所述颜色识别装置包括两旋转云台(53)；两所述旋转云台(53)分别设置在链条输送架(3)的上下方，两所述旋转云台(53)的转轴沿水平方向横向设置；所述旋转云台(53)由一直流电机(54)驱动进行旋转；所述旋转云台(53)外侧设置有颜色传感器(55)；所述旋转云台(53)转轴处设置有角度传感器(56)；所述颜色传感器(55)和角度传感器(56)均与处理器(6)电连接。
  6. 根据权利要求1所述的一种自动原木开合锯机，其特征在于：还包括一紧固机构；所述紧固机构包括一倾斜设置在链条输送架(3)上方的传动杆(81)；所述传动杆(81)上端与固定架(2)铰接，下端与一活动压轮(83)转动连接；所述活动压轮(83)的下端抵靠在原木(99)上端面；所述传动杆(81)靠近活动压轮(83)位置还与一气弹簧(84)的一端铰接；所述气弹簧(84)的另一端铰接在固 定架(2)顶面；所述活动压轮(83)外沿开设有防滑齿。
  7. 根据权利要求3所述的一种自动原木开合锯机，其特征在于：所述牵引机构包括一用于勾住原木(99)前端的勾爪(71)和与勾爪(71)连接的铰链(72)；所述铰链(72)缠绕在一绞盘(73)上；所述绞盘(73)由一三相电机(74)驱动转动。
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CN101607405A (zh) * 2009-07-23 2009-12-23 南京林业大学 一种双联锯切制材技术
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CN103934863A (zh) * 2014-05-09 2014-07-23 福建省得力机电有限公司 自动调距多片带锯机
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WO2001067042A1 (en) * 2000-03-06 2001-09-13 Bennett Ralph W Infeed log scanning for lumber optimization
CN101607405A (zh) * 2009-07-23 2009-12-23 南京林业大学 一种双联锯切制材技术
CN102672761A (zh) * 2012-05-11 2012-09-19 晋江市神工机械制造有限公司 一种全自动双侧上下轴多片式木工锯床
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