A log board multi-specification self-adaptive feeding device and control method

Abstract

The application relates to the technical field of adaptive feeding, in particular to a log board multi-specification adaptive feeding device and a control method, which comprises a log board feeding device body, one side of the inner wall of the log board feeding device body is fixedly connected with a motor one, the output end of the motor one is fixedly connected with a worm one, the outer wall of one end of the worm one is rotationally connected with the other side of the inner wall of the log board feeding device body, and the inner wall of the log board feeding device body is rotationally connected with a threaded rod. Through the fixed connection between the polishing roller and the shaft core, when the log board contacts the polishing roller and moves forward, the edge of the log board can be polished through the setting of the polishing roller, the edge of the log board is more flat, and subsequent processing is facilitated; when the stationary polishing roller passes through the log board, a one-way scratch along the movement direction is left on the edge of the log board, so that a more regular physical adhesion surface is provided for subsequent gluing or edge sealing processes.

Description

Technical Field

[0001] This invention belongs to the field of adaptive feeding technology, specifically relating to an adaptive feeding device and control method for multiple specifications of logs and boards. Background Technology

[0002] The multi-specification adaptive feeding device for logs is an automated feeding device that can intelligently handle logs of different sizes. Its core lies in "adaptability"—through mechanical structure or sensor control, it automatically adapts to differences in the diameter, length, and other dimensions of the logs without the need for frequent manual adjustments.

[0003] However, traditional devices still have the following problems when in use: Patent application publication number CN104551461B discloses a feeding device for multi-specification sheet materials. This device includes two parallel conveyor rails, on which a number of material racks, the same as the number of sheet specifications, slide. The material racks are connected in sequence, and each rack has a lifting hole in the middle. Each material rack has a load plate that can move up and down. A lifting device for lifting the load plate is located at the feeding station in the middle of the conveyor rails. A sensor is located above the feeding station to confirm whether the sheet material has reached the picking height. A feeding robot is located on one side of the conveyor rails corresponding to the lifting device, and a stepping mechanism for driving the material racks is located on the other side of the conveyor rails. The stepping mechanism includes a lead screw arranged parallel to the guide rails and a stepper motor that drives the lead screw to rotate. A sliding seat is sleeved on the lead screw, and a drive rod that moves in a direction perpendicular to the conveyor rails and a positioning drive device that drives the drive rod are located on the sliding seat. A connecting sleeve that cooperates with the drive rod is located on the material rack.

[0004] In the existing technology, the log board feeding device only has basic feeding function and can be adapted to log boards of different specifications, but it lacks the ability to simultaneously pre-process the edges of the log boards (such as chamfering, trimming, deburring, etc.), which leads to additional processes required for subsequent processing, affecting the overall production efficiency and processing accuracy. Therefore, we need a multi-specification adaptive feeding device and control method for log boards to solve the problem that the log board feeding device only has the function of feeding the base, and can pre-process the log boards. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a multi-specification adaptive feeding device and control method for log boards, which has the advantage of pre-treating log boards.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-specification adaptive feeding device for logs and boards, comprising a log feeding device body, a motor fixedly connected to one side of the inner wall of the log feeding device body, a worm gear fixedly connected to the output end of the motor, the outer wall of one end of the worm gear rotatably connected to the other side of the inner wall of the log feeding device body, a threaded rod rotatably connected to the inner wall of the log feeding device body, a worm wheel fixedly connected to the outer wall of the threaded rod, the outer wall of the worm wheel meshing with the outer wall of the worm gear, a mounting seat threadedly connected to the outer wall of the threaded rod, and a guide rod fixedly connected to the inner wall of the threaded rod below the threaded rod, the outer wall of the guide rod slidingly connected to the inner wall of the mounting seat.

[0007] Preferably, a rotating rod is rotatably connected to the outer wall of the top of the mounting base, a guide rod is not fixedly connected to the outer wall of the top of the mounting base, a limit ring is fixedly connected to the outer wall of the guide rod, and a movable frame is slidably connected to the outer wall of the guide rod, with the bottom outer wall of the movable frame in movable contact with the top outer wall of the limit ring.

[0008] Preferably, a threaded sleeve is rotatably connected to the outer wall of the rotating rod, a nut is fixedly connected inside the movable frame, the inner wall of the nut is threadedly connected to the outer wall of the threaded sleeve, a worm gear is fixedly connected to the lower part of the outer wall of the rotating rod, a motor is fixedly connected to one side of the inner wall of the log feeding device, a worm is fixedly connected to the output end of the motor, the outer wall of one end of the worm is rotatably connected to the other side of the inner wall of the log feeding device, and the outer wall of the worm gear is meshed with the outer wall of the worm.

[0009] Preferably, a strip groove is provided on the rotating rod, a sliding ring is slidably connected inside the strip groove, a return spring is fixedly connected to the outer wall of the top of the sliding ring, the outer wall of the top of the return spring is fixedly connected to the top of the strip groove, and a limit rod is fixedly connected to the outer wall of the sliding ring.

[0010] Preferably, a limiting groove is formed on the outer wall of the top of the threaded sleeve, the inner wall of the limiting rod is movably inserted into the limiting groove, the outer wall of the bottom of the limiting rod is movably in contact with the outer wall of the top of the nut, and a limiting block is slidably connected inside the top of the threaded sleeve.

[0011] Preferably, a helical gear is fixedly connected to the outer wall of the top of the rotating rod, a rotating rod is rotatably connected through the inside of the movable frame, a helical gear is fixedly connected to the outer wall of one end of the rotating rod, the outer wall of the helical gear is meshed with the outer wall of the helical gear, and an adjusting plate is fixedly connected to the outer wall of one end of the rotating rod.

[0012] Preferably, a shaft is fixedly connected inside the adjusting plate, a rotating roller is rotatably connected to the outer wall of the shaft, a grinding roller is fixedly connected to the outer wall of the shaft, and a sensor is embedded inside the front side of the adjusting plate.

[0013] Preferably, an L-shaped plate is fixedly connected to the outer wall of the top of the mobile frame, an electric telescopic rod is fixedly connected to the outer wall of one side of the L-shaped plate, a connecting plate is fixedly connected to the output end of the electric telescopic rod, and insert rods are fixedly connected to both sides of the bottom of the connecting plate.

[0014] Preferably, the outer wall of the top of the movable frame is provided with a sliding groove, the inside of the sliding groove is slidably connected to the outer wall of the insertion rod, and the upper and lower sides of the adjusting plate are provided with locking slots, the inside of the locking slots is movably sleeved with the outer wall of the insertion rod.

[0015] A method for adaptive feeding control of logs of various specifications is based on a multi-specification adaptive feeding device for logs. This method includes the following steps: S1: Adaptive Spacing Adjustment: The sensor detects the specifications of the raw wood board. Based on the detection results, the controller starts motor one. Through the linkage of worm gear one and multiple worm wheels one, the threaded rod drives the mounting base to move along guide rod one, thereby synchronously adjusting the spacing of the two grinding rollers to match the width of the board. S2: Grinding and conveying mode switching: Start motor two rotates in the forward direction, and through the transmission of worm gear two and worm wheel two, drive rotating rod one to drive threaded sleeve to rotate, so that the nut lifts the moving frame upward along guide rod two, and raises the grinding roller to separate it from the plate, realizing the switching from grinding mode to pure conveying mode; S3: Adjustment plate locking and release control: Start the electric telescopic rod to push the connecting plate and the insertion rod to move, so that the insertion rod is pulled out of the slot, releasing the limit on the adjustment plate and allowing the adjustment plate to enter a state of free rotation; S4: Limit travel protection and power path switching: When the nut rises to the top and pushes the limit rod out of the limit groove, the threaded sleeve and the rotating rod one are connected to each other in a relative rotational manner. At the same time, the helical gear two and the helical gear one are engaged, and the power is automatically switched from lifting transmission to rotational transmission. S5: Automatic Reset and Locking Recovery: Control motor two to rotate in reverse, using the arc surface and straight edge structure of the limit block to drive the threaded sleeve to reverse, causing the nut to drive the moving frame to move downward. At the same time, the reset spring pushes the sliding ring to make the limit rod re-insert into the limit groove, completing the automatic reset and locking of the moving frame.

[0016] Compared with the prior art, the beneficial effects of the present invention are: With the fixed connection between the grinding roller and the shaft, when the raw wood board contacts the grinding roller and moves forward, the edge of the raw wood board can be ground by the setting of the grinding roller, making the edge of the raw wood board smoother, so as to facilitate subsequent processing. When the stationary grinding roller passes through the raw wood board, it will leave unidirectional scratches along the direction of movement on the edge of the raw wood board, so as to provide a more regular physical adhesion surface for subsequent glue application or edge banding processes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the worm gear structure of the present invention.

[0019] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle.

[0020] Figure 4 This is a schematic diagram of the threaded rod structure of the present invention.

[0021] Figure 5 for Figure 4 Enlarged structural diagram at point B.

[0022] Figure 6 This is a schematic diagram of the working structure of the helical gear II of the present invention.

[0023] Figure 7 This is a schematic diagram of the internal structure of the threaded sleeve of the present invention.

[0024] Figure 8 for Figure 7 Enlarged structural diagram at point C.

[0025] Figure 9 This is a flowchart of the present invention.

[0026] In the diagram: 1. Log board feeding device body; 2. Moving frame; 21. Adjusting plate; 22. Rotating rod II; 23. Helical gear II; 3. Rotating roller; 33. Grinding roller; 4. Worm I; 41. Motor I; 42. Worm wheel I; 5. Threaded rod; 51. Mounting base; 52. Guide rod I; 6. Motor II; 61. Worm II; 62. Helical gear I; 63. Rotating rod I; 64. Worm wheel II; 65. Threaded sleeve; 66. Nut; 67. Guide rod II; 68. Limiting block; 7. Electric telescopic rod; 71. Connecting plate; 72. Insert rod; 73. Slide groove; 74. Slot; 8. Strip groove; 81. Return spring; 82. Sliding ring; 83. Limiting rod; 84. Limiting groove. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1, please refer to Figures 1 to 9 This invention provides a technical solution for a multi-specification adaptive feeding device for logs and boards: it includes a log feeding device body 1, a motor 41 fixedly connected to one side of the inner wall of the log feeding device body 1, a worm gear 4 fixedly connected to the output end of the motor 41, the outer wall of one end of the worm gear 4 being rotatably connected to the other side of the inner wall of the log feeding device body 1, a threaded rod 5 rotatably connected to the inner wall of the log feeding device body 1, a worm wheel 42 fixedly connected to the outer wall of the threaded rod 5, the outer wall of the worm wheel 42 meshing with the outer wall of the worm gear 4, a mounting base 51 threadedly connected to the outer wall of the threaded rod 5, and a guide rod 52 fixedly connected to the inner wall of the threaded rod 5 below the threaded rod 5, the outer wall of the guide rod 52 being slidably connected to the inner wall of the mounting base 51.

[0029] The worm gear 4 is meshed with multiple worm wheels 42. When the worm gear 4 rotates, it drives the multiple worm wheels 42 to move simultaneously. This allows for simultaneous adjustment of the sanding rollers 33 on one side of the log feeding device body 1. This avoids the need for individual control of each sanding roller 33 on one side of the log feeding device body 1 during adjustment, thereby improving the convenience of adjusting the sanding rollers 33 and significantly shortening the operation time.

[0030] In Example 2, based on Example 1, a rotating rod 63 is rotatably connected to the outer wall of the top of the mounting base 51. A guide rod 67 is not fixedly connected to the outer wall of the top of the mounting base 51. A limit ring is fixedly connected to the outer wall of the guide rod 67. A movable frame 2 is slidably connected to the outer wall of the guide rod 67. The outer wall of the bottom of the movable frame 2 is in movable contact with the outer wall of the top of the limit ring. A threaded sleeve 65 is rotatably connected to the outer wall of the rotating rod 63. A nut 66 is fixedly connected inside the movable frame 2. The inner wall of the nut 66 is threadedly connected to the outer wall of the threaded sleeve 65. A worm gear 64 is fixedly connected to the lower part of the outer wall of the rotating rod 63. A motor 6 is fixedly connected to one side of the inner wall of the log feeding device body 1. A worm gear 61 is fixedly connected to the output end of the motor 6. The outer wall of one end of the worm gear 61 is rotatably connected to the other side of the inner wall of the log feeding device body 1. The outer wall of the worm gear 64 is meshed with the outer wall of the worm gear 61.

[0031] The threaded connection between the threaded sleeve 65 and the nut 66 causes the nut 66 to drive the moving frame 2 to move upward along the direction of the guide rod 67, causing the adjusting plate 21 of the moving frame 2 to move upward, leaving a certain distance between the grinding roller 33 and the main body 1 of the log feeding device, which facilitates the position exchange between the grinding roller 33 and the rotating roller 3, and the switching between the grinding mode and the pure conveying mode, thus expanding the versatility of the device and eliminating the need to prepare two independent production lines.

[0032] In Example 3, based on Example 2, a strip groove 8 is provided on the rotating rod 63. A sliding ring 82 is slidably connected inside the strip groove 8. A return spring 81 is fixedly connected to the outer wall of the top of the sliding ring 82. The outer wall of the top of the return spring 81 is fixedly connected to the top of the strip groove 8. A limit rod 83 is fixedly connected to the outer wall of the sliding ring 82. A limit groove 84 is provided on the outer wall of the top of the threaded sleeve 65. The inner wall of the limit rod 83 is movably inserted into the inner wall of the limit groove 84. The outer wall of the bottom of the limit rod 83 is in movable contact with the outer wall of the top of the nut 66. A limit block 68 is slidably connected inside the top of the threaded sleeve 65.

[0033] When the nut 66 continues to move upward through contact between the top and the bottom of the limiting rod 83, the limiting rod 83 can be pushed out from the inside of the limiting groove 84, thereby releasing the limitation between the limiting rod 83 and the limiting groove 84. This allows the threaded sleeve 65 to be rotatably connected to the rotating rod 63. At this time, the rotation of the rotating rod 63 can no longer drive the threaded sleeve 65 to follow. At the same time, the helical gear 23 moves to the position of the helical gear 62 and meshes with the helical gear 62.

[0034] In Example 4, based on Example 3, a helical gear 62 is fixedly connected to the outer wall of the top of the rotating rod 63. A rotating rod 22 is rotatably connected through the interior of the moving frame 2. A helical gear 23 is fixedly connected to the outer wall of one end of the rotating rod 22. The outer wall of the helical gear 23 meshes with the outer wall of the helical gear 62. An adjusting plate 21 is fixedly connected to the outer wall of one end of the rotating rod 22. A shaft is fixedly connected inside the adjusting plate 21. A rotating roller 3 is rotatably connected to the outer wall of the shaft. A grinding roller 33 is fixedly connected to the outer wall of the shaft. A sensor is embedded in the front of the adjustment plate 21. An L-shaped plate is fixedly connected to the outer wall of the top of the movable frame 2. An electric telescopic rod 7 is fixedly connected to the outer wall of one side of the L-shaped plate. A connecting plate 71 is fixedly connected to the output end of the electric telescopic rod 7. Insert rods 72 are fixedly connected to both sides of the bottom of the connecting plate 71. A sliding groove 73 is opened on the outer wall of the top of the movable frame 2. The inside of the sliding groove 73 is slidably connected to the outer wall of the insert rod 72. A slot 74 is opened on the upper and lower sides of the adjustment plate 21. The inside of the slot 74 is movably sleeved with the outer wall of the insert rod 72.

[0035] As the rotating rod 22 rotates, the adjusting plate 21 drives the grinding roller 33 and the rotating roller 3 to rotate, thereby adjusting the position of the grinding roller 33 and the rotating roller 3. This increases the practicality of the log feeding device body 1 and prevents the grinding roller 33 from grinding the logs when they do not need to be ground. The rotating roller 3 is rotatably connected to the shaft core. When the logs come into contact with the rotating roller 3, the rotating roller 3 can be driven to rotate, thereby reducing the friction between the rotating roller 3 and the logs. Through the fixed connection between the grinding roller 33 and the shaft core, when the original wood board contacts the grinding roller 33 and moves forward, the edge of the original wood board can be ground by the setting of the grinding roller 33, making the edge of the original wood board smoother for subsequent processing. When the stationary grinding roller 33 passes through the original wood board, it will leave unidirectional scratches along the direction of movement on the edge of the original wood board, so as to provide a more regular physical adhesion surface for subsequent glue application or edge banding processes.

[0036] Example 5: A method for adaptive feeding control of logs of various specifications, based on any one of the adaptive feeding devices for logs of various specifications in Examples 1 to 4. This method includes the following steps: S1: Adaptive Spacing Adjustment: The sensor detects the specifications of the raw wood board. Based on the detection results, the controller starts the motor 41. Through the linkage of the worm gear 4 and multiple worm wheels 42, the threaded rod 5 drives the mounting base 51 to move along the guide rod 52, thereby synchronously adjusting the spacing of the two grinding rollers 33 to match the width of the board. It achieves one-click, high-precision, and synchronous adjustment of the spacing between the two grinding rollers 33. A single motor 41 drives a worm gear to link multiple worm wheels 42, avoiding the tedious operation of traditional manual adjustment and shortening the changeover time.

[0037] S2: Grinding and conveying mode switching: Start motor 2 6 rotates in the forward direction, and through the transmission of worm gear 2 61 and worm wheel 2 64, drive rotating rod 1 63 to drive threaded sleeve 65 to rotate, so that nut 66 lifts the moving frame 2 upward along guide rod 2 67, and lifts the grinding roller 33 to separate it from the plate, realizing the switching from grinding mode to pure conveying mode. By using motor 26 to drive the lifting mechanism in the forward direction, the grinding roller 33 is lifted as a whole and detached from the board, realizing a quick switch between grinding mode and pure conveying mode. There is no need to prepare two independent production lines. At the same time, the lifting action also provides a spacious operating space for cleaning, inspection and replacement of the grinding roller 33.

[0038] S3: Locking and releasing control of adjusting plate 21: Start the electric telescopic rod 7 to push the connecting plate 71 and the insertion rod 72 to move, so that the insertion rod 72 is pulled out from the slot 74, releasing the limit on the adjusting plate 21, and allowing the adjusting plate 21 to enter a state where it can rotate freely; The electric telescopic rod 7 drives the double insert rod 72 to pull out the slot 74 simultaneously, so that the adjustment plate 21 can rotate freely around the hinge point.

[0039] S4: Limit travel protection and power path switching: When the nut 66 rises to the top and pushes the limit rod 83 out of the limit groove 84, the threaded sleeve 65 and the rotating rod 63 are connected to each other in a relative rotational manner. At the same time, the helical gear 23 and the helical gear 62 are engaged, and the power is automatically switched from lifting transmission to rotational transmission. When the lifting mechanism rises to the limit position, the limit rod 83 is forced out of the limit groove 84, physically cutting off the lifting transmission chain. At the same time, this action automatically triggers the engagement of the helical gear, seamlessly switching the power of the same motor 26 from lifting drive to rotation drive. Two independent actions are completed in time with one power source, eliminating the need for an additional drive motor 26 and complex control program.

[0040] S5: Automatic Reset and Locking Recovery: Control motor 6 to rotate in the reverse direction, and use the arc-shaped surface and straight edge structure of limit block 68 to drive threaded sleeve 65 to reverse so that nut 66 drives moving frame 2 to move downward. At the same time, reset spring 81 pushes sliding ring 82 so that limit rod 83 is re-inserted into limit groove 84, completing the automatic reset and locking of moving frame.

[0041] By rotating the motor 6 in the reverse direction, the unidirectional driving characteristics of the arc surface and straight edge of the limit block 68 are used to make the threaded sleeve 65 drive the nut 66 to move down smoothly. At the same time, with the help of the push force of the reset spring 81, the limit rod 83 is automatically reinserted into the limit groove 84 when it reaches the preset position, thus completing the restoration of the mechanical lock. The entire reset process does not require sensor detection or additional control commands and is completed automatically by the mechanical structure.

[0042] The working principle and usage process of this invention are as follows: During operation, the invention first uses sensors on the adjustment plate 21 to detect the position of the log on the main body 1 of the log feeding device. When the size of the log is smaller than the distance between the sanding rollers 33 on both sides of the main body 1, the sensor transmits the detection result to the controller. The controller then controls the motor 41 to operate. Due to the fixed connection between the motor 41 and the worm gear 4, the worm gear 4 rotates when the motor 41 moves. Since the worm gear 4 is meshed with multiple worm wheels 42, the rotation of the worm gear 4 drives the multiple worm wheels 42 to move simultaneously. This allows for simultaneous adjustment of the sanding rollers 33 on one side of the main body 1, avoiding the need for individual control of each sanding roller 33 during adjustment. Consequently, the convenience of adjusting the sanding rollers 33 is improved, and the operation time is significantly shortened.

[0043] This invention utilizes the simultaneous movement of multiple worm gears 42. Due to the fixed connection between the worm gears 42 and the threaded rod 5, the movement of the worm gears 42 drives the threaded rod 5 to move accordingly. Furthermore, due to the threaded connection between the threaded rod 5 and the mounting base 51, the mounting base 51 moves back and forth along the direction of the guide rod 52, thereby adjusting the distance between the sanding rollers 33 on both sides of the main body 1 of the log feeding device. This makes the two sanding rollers 33 more suitable for the specifications of the log. By setting the sanding rollers 33 on both sides of the log, the feeding process of the log can be limited, preventing the log from deviating from the center when it reaches the operating table. This device not only achieves precise spacing of the sanding rollers 33, but also integrates the sanding and anti-deviation processes into one, thus transforming the advantages of adaptive adjustment into feeding accuracy and finished product qualification rate.

[0044] It should be noted that: after the grinding roller 33 moves to the designated position by setting the sensor, the movement of motor 41 can be stopped. Since motor 41 has a self-locking function when it stops moving, the mechanical structure associated with motor 41 can remain stationary after motor 41 stops. The above is a conventional device on the market and will not be described in detail here.

[0045] Because of the fixed connection between the grinding roller 33 and the shaft core, when the original wood board contacts the grinding roller 33 and moves forward, the edge of the original wood board can be ground by the setting of the grinding roller 33, making the edge of the original wood board smoother for subsequent processing. When the stationary grinding roller 33 passes through the original wood board, it will leave unidirectional scratches along the direction of movement on the edge of the original wood board, so as to provide a more regular physical adhesion surface for subsequent glue application or edge sealing processes.

[0046] The present invention starts the second motor 6. Due to the fixed connection between the second motor 6 and the second worm gear 61, and the connection between the second worm gear 61 and multiple worm wheels 64, when the second worm gear 61 rotates, it drives the multiple worm wheels 64 to rotate accordingly. Due to the fixed connection between the second worm wheel 64 and the first rotating rod 63, and the rotational connection between the first rotating rod 63 and the mounting base 51, when the second worm wheel 64 rotates, it drives the first rotating rod 63 to rotate accordingly. This causes the first rotating rod 63 to drive the threaded sleeve 65 to move. Due to the threaded connection between the threaded sleeve 65 and the nut 66, the nut 66 drives the moving frame 2 to move upward along the direction of the second guide rod 67. This causes the adjusting plate 21 of the moving frame 2 to move upward, leaving a certain distance between the grinding roller 33 and the main body 1 of the log feeding device. This facilitates the exchange of positions between the grinding roller 33 and the rotating roller 3, allowing switching between the grinding mode and the pure conveying mode. This expands the versatility of the device, eliminating the need for two separate production lines.

[0047] The present invention activates the electric telescopic rod 7, and the movement of the electric telescopic rod 7 drives the connecting plate 71 to move. Due to the fixed connection between the connecting plate 71 and the insert rod 72, when the connecting plate 71 moves, it simultaneously drives the two insert rods 72 to move, thereby causing the insert rods 72 to leave the inside of the slot 74, releasing the restriction on the slot 74, and allowing the adjusting plate 21 to rotate freely.

[0048] When the top of the nut 66 contacts the bottom of the limiting rod 83 and continues to move upward, the limiting rod 83 can be pushed out from the inside of the limiting groove 84, thereby releasing the limitation between the limiting rod 83 and the limiting groove 84. This allows the threaded sleeve 65 to be rotatably connected to the rotating rod 63. At this time, the rotation of the rotating rod 63 cannot drive the threaded sleeve 65 to follow. At the same time, the helical gear 23 moves to the position of the helical gear 62 and meshes with the helical gear 62.

[0049] This invention utilizes the meshing between helical gear 23 and helical gear 62. When rotating rod 63 rotates, helical gear 23 drives rotating rod 22 to rotate as well. Due to the fixed connection between rotating rod 22 and adjusting plate 21, the rotation of rotating rod 22 simultaneously drives grinding roller 33 and rotating roller 3 to rotate, thereby adjusting the positions of grinding roller 33 and rotating roller 3. This increases the practicality of the log feeding device body 1 and prevents grinding roller 33 from grinding the logs when grinding is not required. Because rotating roller 3 is rotatably connected to shaft, when the logs come into contact with rotating roller 3, rotating roller 3 can be driven to rotate, thereby reducing friction between rotating roller 3 and logs.

[0050] This invention utilizes the reverse rotation of motor 6. Since one side of the limiting block 68 is arc-shaped, when the sliding ring 82 drives the limiting rod 83 to rotate in the forward direction, it will squeeze the limiting block 68, causing the limiting block 68 to enter the interior of the threaded sleeve 65. After the limiting rod 83 passes the limiting block 68, the limiting block 68 returns to its original position under the action of the push spring. When the limiting rod 83 moves in the reverse direction, it contacts the straight edge of the limiting block 68, preventing the limiting block 68 from being pushed into the interior of the threaded sleeve 65. This allows the limiting block 68 to drive the threaded sleeve 65 to rotate, thereby causing the nut 66 to drive the moving frame 2 to move downward. When the nut 66 moves downward, the sliding ring 82 is pushed downward under the action of the return spring 81, causing the limiting rod 83 to re-insert into the limiting groove 84.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-specification self-adaptive log board feeding device, comprising a log board feeding device body (1), characterized in that: A motor (41) is fixedly connected to one side of the inner wall of the log feeding device body (1). A worm gear (4) is fixedly connected to the output end of the motor (41). The outer wall of one end of the worm gear (4) is rotatably connected to the other side of the inner wall of the log feeding device body (1). A threaded rod (5) is rotatably connected to the inner wall of the log feeding device body (1). A worm wheel (42) is fixedly connected to the outer wall of the threaded rod (5). The outer wall of the worm wheel (42) meshes with the outer wall of the worm gear (4). A mounting seat (51) is threadedly connected to the outer wall of the threaded rod (5). A guide rod (52) is fixedly connected to the inner wall of the threaded rod (5) below the threaded rod (5). The outer wall of the guide rod (52) is slidably connected to the inner wall of the mounting seat (51).

2. The log board multi-specification self-adaptive feeding device according to claim 1, characterized in that: The outer wall of the top of the mounting base (51) is rotatably connected to a rotating rod (63), and the outer wall of the top of the mounting base (51) is not fixedly connected to a guide rod (67). The outer wall of the guide rod (67) is fixedly connected to a limit ring, and the outer wall of the guide rod (67) is slidably connected to a movable frame (2). The outer wall of the bottom of the movable frame (2) is in contact with the outer wall of the top of the limit ring.

3. The log board multi-specification self-adaptive feeding device according to claim 2, characterized in that: The outer wall of the rotating rod (63) is rotatably connected to a threaded sleeve (65), and the inside of the moving frame (2) is fixedly connected to a nut (66). The inner wall of the nut (66) is threadedly connected to the outer wall of the threaded sleeve (65). The lower part of the outer wall of the rotating rod (63) is fixedly connected to a worm gear (64). The inner wall of the log feeding device body (1) is fixedly connected to a motor (6). The output end of the motor (6) is fixedly connected to a worm gear (61). The outer wall of one end of the worm gear (61) is rotatably connected to the other side of the inner wall of the log feeding device body (1). The outer wall of the worm gear (64) is meshed with the outer wall of the worm gear (61).

4. The log board multi-specification self-adaptive feeding device according to claim 3, characterized in that: A strip groove (8) is provided on the rotating rod (63). A sliding ring (82) is slidably connected inside the strip groove (8). A return spring (81) is fixedly connected to the outer wall of the top of the sliding ring (82). The outer wall of the top of the return spring (81) is fixedly connected to the top of the strip groove (8). A limit rod (83) is fixedly connected to the outer wall of the sliding ring (82).

5. The multi-specification adaptive feeding device for logs and boards according to claim 4, characterized in that: The outer wall of the top of the threaded sleeve (65) is provided with a limiting groove (84), the inner wall of the limiting rod (83) is movably inserted into the inside of the limiting groove (84), the outer wall of the bottom of the limiting rod (83) is movably in contact with the outer wall of the top of the nut (66), and the inner wall of the top of the threaded sleeve (65) is slidably connected with a limiting block (68).

6. The multi-specification adaptive feeding device for logs and boards according to claim 3, characterized in that: A helical gear 1 (62) is fixedly connected to the outer wall of the top of the rotating rod 1 (63). A rotating rod 2 (22) is rotatably connected through the inside of the moving frame (2). A helical gear 2 (23) is fixedly connected to the outer wall of one end of the rotating rod 2 (22). The outer wall of the helical gear 2 (23) meshes with the outer wall of the helical gear 1 (62). An adjusting plate (21) is fixedly connected to the outer wall of one end of the rotating rod 2 (22).

7. The multi-specification adaptive feeding device for logs and boards according to claim 6, characterized in that: The adjusting plate (21) is fixedly connected to a shaft core, and a rotating roller (3) is rotatably connected to the outer wall of the shaft core. A grinding roller (33) is fixedly connected to the outer wall of the shaft core. A sensor is embedded in the front of the adjusting plate (21).

8. The multi-specification adaptive feeding device for logs and boards according to claim 6, characterized in that: An L-shaped plate is fixedly connected to the outer wall of the top of the mobile frame (2), and an electric telescopic rod (7) is fixedly connected to the outer wall of one side of the L-shaped plate. A connecting plate (71) is fixedly connected to the output end of the electric telescopic rod (7), and insert rods (72) are fixedly connected to both sides of the bottom of the connecting plate (71).

9. A multi-specification adaptive feeding device for logs and boards according to claim 8, characterized in that: The top outer wall of the movable frame (2) is provided with a sliding groove (73), the inside of the sliding groove (73) is slidably connected to the outer wall of the insert rod (72), and the upper and lower sides of the adjusting plate (21) are provided with slots (74), the inside of the slots (74) is movably sleeved with the outer wall of the insert rod (72).

10. A method for controlling the adaptive feeding of logs of various specifications, based on the adaptive feeding device for logs of various specifications as described in any one of claims 1-9, characterized in that: The method for controlling the multi-specification adaptive feeding of logs includes the following steps: S1: Adaptive Spacing Adjustment: The sensor detects the specifications of the original wood board. The controller starts motor 1 (41) based on the detection result. Through the linkage of worm gear 1 (4) and multiple worm wheels 1 (42), the threaded rod (5) drives the mounting base (51) to move along the guide rod 1 (52), thereby synchronously adjusting the spacing of the two grinding rollers (33) to match the width of the board. S2: Grinding and conveying mode switching: Start motor two (6) to rotate in the forward direction. Through the transmission of worm gear two (61) and worm wheel two (64), drive rotating rod one (63) to drive threaded sleeve (65) to rotate, so that nut (66) lifts the moving frame (2) upward along guide rod two (67), and raises the grinding roller (33) to separate it from the plate, realizing the switching from grinding mode to pure conveying mode; S3: Locking and releasing control of adjusting plate (21): Start the electric telescopic rod (7) to push the connecting plate (71) and the insert rod (72) to move, so that the insert rod (72) is pulled out from the slot (74), releasing the limit on the adjusting plate (21) and allowing the adjusting plate (21) to enter a state where it can rotate freely; S4: Limit travel protection and power path switching: When the nut (66) rises to the top and pushes the limit rod (83) out of the limit groove (84), the threaded sleeve (65) and the rotating rod (63) are connected to each other in a relative rotational manner. At the same time, the helical gear (23) and the helical gear (62) are engaged, and the power is automatically switched from lifting transmission to rotational transmission. S5: Automatic Reset and Locking Recovery: Control motor 2 (6) rotates in reverse, and using the arc surface and straight edge structure of the limit block (68), drive the threaded sleeve (65) to reverse so that the nut (66) drives the moving frame (2) to move downward. At the same time, the reset spring (81) pushes the sliding ring (82) so that the limit rod (83) is re-inserted into the limit groove (84), thus completing the automatic reset and locking of the moving frame.

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