A wood peeling device

Abstract

This utility model relates to the field of wood processing technology, specifically a wood debarking device, including a slide rail, a fixed frame at one end of the slide rail, a fixed grinding assembly on the fixed frame, two sets of slide rails symmetrically arranged, a slide table slidably fitted on the two sets of slide rails, a sliding frame on the slide table, a movable grinding assembly mounted on the sliding frame via bearings, a linear encoder and a hydraulic cylinder on the side of the fixed frame, the two ends of the hydraulic cylinder being hinged to the fixed frame and the sliding frame, a pull rope mounted on the linear encoder, the tail end of the pull rope being connected to the sliding frame, a support frame above the middle of the movable grinding assembly and the fixed grinding assembly, and a vision inspection camera mounted on the support frame. This utility model can improve the streamlined operation of wood debarking and achieve standardized debarking operations.

Description

Technical Field

[0001] This utility model relates to the field of wood processing technology, specifically a wood peeling device. Background Technology

[0002] Wood debarking is a crucial step in wood processing, aiming to remove bark and surface impurities to improve the wood's processing performance and finished product quality. Currently, common wood debarking devices primarily employ mechanical sanding, where the wood is fixed inside a debarking machine, and high-speed rotating sanding rollers or blades cut and polish the wood surface. However, existing debarking equipment has significant limitations in its operation:

[0003] First, traditional debarking devices typically operate intermittently, meaning that after each debarking process, the machine must be stopped to remove the wood before new wood is placed in. This discontinuous operation severely impacts production continuity, hindering efficient assembly line operations and resulting in low processing efficiency, making it difficult to meet the demands of large-scale industrial production. For example, a wood debarking device is disclosed in Chinese patent document CN219748363U.

[0004] A Chinese patent document with publication number CN109623996B provides a method for continuous debarking of wood. The method involves feeding wood into the inlet and outputting it from the outlet. During this process, the surface of the wood is debarked by a first roller and a second roller that work together. However, in the above method, the wood needs to be precisely aligned with the cylindrical inlet when it is fed, which makes feeding inconvenient and affects the flexibility of operation.

[0005] Secondly, existing wood peeling processes rely heavily on manual experience. During peeling, the straightness and roundness of the wood, as well as the peeling rate, are usually judged by operators through visual inspection or manual checks. This method is not only highly subjective and prone to inconsistent peeling quality due to human error, but also makes it difficult to achieve standardized production, affecting the precision of subsequent processing steps and the quality of the finished product. Utility Model Content

[0006] The purpose of this invention is to provide a wood peeling device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a wood peeling device, comprising a slide rail, a fixed frame at one end of the slide rail, a fixed sanding assembly on the fixed frame, two sets of slide rails symmetrically arranged, a sliding table slidably fitted on the two sets of slide rails, a sliding frame on the sliding table, a movable sanding assembly mounted on the sliding frame via bearings, a linear encoder and a hydraulic cylinder on the side of the fixed frame, the two ends of the hydraulic cylinder being hinged to the fixed frame and the sliding frame, a pull rope mounted on the linear encoder, the tail end of the pull rope being connected to the sliding frame, a support frame above the middle of the movable sanding assembly and the fixed sanding assembly, and a visual inspection camera mounted on the support frame.

[0008] The present invention is further configured such that the fixed sanding assembly includes a fixed roller, the fixed roller is mounted on a fixed frame via a bearing, and a first motor is mounted on the fixed frame. The first motor is connected to the fixed roller in a transmission manner. When the first motor is started, the fixed roller is rotated by the first motor, thereby realizing the limited peeling sanding on one side of the fixed frame during wood sanding.

[0009] The present invention is further configured such that the movable sanding assembly includes movable rollers, two sets of which are arranged vertically and mounted on a sliding frame via bearings. The drive ends of the two sets of movable rollers are connected to a rotation drive assembly. Both the movable rollers and the fixed rollers are one of peeling rollers, knife rollers, or grooved rollers. Thus, the fixed rollers and movable rollers cooperate to limit the wood between the fixed rollers and the movable rollers during sanding. The movable rollers and the fixed rollers rotate in the same direction, and the rotation speed can be adjusted according to the type of wood being sanded. After sanding is completed, the sliding frame can be controlled to move the movable rollers away from the fixed rollers, and the wood will automatically fall off under the action of gravity, realizing a streamlined operation and improving the efficiency of wood sanding.

[0010] The present invention is further configured such that the rotation drive assembly includes a second motor, both ends of the moving roller are provided with mounting shafts, and the rollers are mounted on the sliding frame through the cooperation of the mounting shafts and bearings. The second motor is connected to one of the mounting shafts for transmission, and a rotation transmission structure is provided between the two sets of mounting shafts.

[0011] The present invention is further configured such that the rotational transmission structure includes a drive wheel, which is mounted on a mounting shaft. A drive belt is provided between the two sets of drive wheels. When a second motor is started, the corresponding mounting shaft can be rotated. Through the cooperation of the mounting shaft, drive wheel, and drive belt, the rotation of another set of mounting shafts can be controlled. The rotation of the mounting shaft drives the rotation of the moving rollers, thereby realizing the rotational drive of the two sets of moving rollers. Here, the drive wheels with appropriate transmission ratios can be selected and installed between the two sets of drive wheels according to the type and diameter of the wood being processed, so as to achieve differential sanding and improve the peeling effect of the wood. The cooperation between the drive wheel and the drive belt can be a sprocket and chain cooperation or a synchronous pulley and synchronous belt cooperation.

[0012] The present invention is further configured such that a suction hood is provided on the support frame, the suction hood faces the middle area of ​​the fixed roller and the moving roller, and a suction hose is provided on the suction hood. The suction hose is connected to a negative pressure suction dust collection device. The negative pressure suction dust collection device is a commonly used dust removal device. The specific structure of the present invention will not be described in detail. Its working principle and the way it cooperates with the suction hood in the present invention are known in the prior art. During the wood peeling and sanding process, under the action of the negative pressure suction at the suction hood, the dust and small-diameter debris generated during the wood peeling process will be sucked away by the suction hood, thereby achieving effective dust removal during the wood peeling process and improving the cleanliness of the operation.

[0013] The present invention is further configured such that a material drop frame is provided in the area below the fixed roller and the moving roller, and a buffer guide is hinged on the material drop frame. An elastic connector is provided between the buffer guide and the material drop frame. After grinding is completed, the moving roller will move away from the fixed roller under the drive of the sliding frame, so that the ground wood will fall directly downwards and land on the buffer guide. The buffer guide will guide the wood to achieve automatic discharge after peeling. After this step, a conveyor belt structure for transferring wood can be connected to realize the receiving and transporting of wood, improving the efficiency of assembly line operation. During this process, the falling wood impacts and squeezes the buffer guide, and the buffer guide will transmit the impact force to the elastic connector, thereby reducing the impact damage when the wood falls. In the present invention, the elastic connector can be a spring, a gas spring rod, a rubber shock absorber, etc. If a gas spring rod is used, it is preferable that the gas spring rod is hinged to both the material drop frame and the buffer guide.

[0014] The present invention is further configured such that a waste conveyor belt is provided below the material drop frame, and the material drop frame and the buffer guide are provided with material drop troughs in coordination with the material drop conveyor belt. In this way, most of the waste shavings generated during the wood peeling and sanding process can fall directly onto the waste conveyor belt through the material drop trough and be transported by the waste conveyor belt, so as to directly transport away the waste generated during the wood peeling process and avoid accumulation at the sanding and peeling position.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. High-efficiency assembly line operation and automated control

[0017] This invention utilizes a combination of slide rails, slide tables, and hydraulic cylinders to achieve flexible adjustment of the mobile sanding unit, working in conjunction with the fixed sanding unit to complete continuous debarking of wood. Wood is automatically fed between the fixed and mobile rollers via a conveyor. After sanding, the hydraulic cylinder drives the mobile rollers away, automatically dropping the wood without manual intervention, significantly improving production efficiency. A linear encoder monitors the straightness and roundness of the wood in real time, and a vision inspection camera automatically detects the debarking rate; both data are fed back to the control system to ensure standardized processing quality. The entire process achieves automated continuous operation from feeding and sanding to discharging, solving the problem of low efficiency caused by intermittent operation of traditional equipment, and is particularly suitable for large-scale industrial production needs.

[0018] 2. Precise testing and standardized processing

[0019] This device uses a linear encoder and a pull rope to dynamically monitor the displacement of the sliding frame during sanding, accurately determining the roundness and straightness of the wood. A visual inspection camera captures real-time images of the wood surface and analyzes whether the peeling rate meets the standards. Both sets of data are fed back to the PLC control system to ensure that the processing quality of each piece of wood meets preset standards. This automated inspection method replaces traditional manual visual inspection, eliminating subjective errors and improving peeling accuracy and consistency. Simultaneously, the differential speed design between the fixed and moving rollers allows for speed adjustment based on the type of wood, further optimizing the sanding effect and providing high-quality, standardized raw materials for subsequent processing steps.

[0020] 3. Environmentally friendly dust removal and efficient waste treatment

[0021] This device features a suction hood connected to a negative pressure dust collection system above the sanding area, effectively adsorbing dust and small particles generated during the peeling process and improving the working environment. The lower material drop rack works in conjunction with a waste conveyor belt, automatically collecting and conveying large pieces of waste through a drop chute to prevent accumulation. A buffer guide and elastic connectors reduce the impact of falling wood, protecting the integrity of the finished product. This integrated design, combining dust removal, waste recycling, and finished product protection, not only improves the cleanliness of the work area but also enables centralized waste processing, reducing manual cleaning costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a wood peeling device according to the present invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the overall structure of a wood peeling device according to the present invention. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the installation structure of the fixed roller in this utility model;

[0025] Figure 4 This is a schematic diagram of the installation structure of the movable roller in this utility model;

[0026] Figure 5 This is a schematic diagram of the position and structure of the buffer guide in this utility model.

[0027] The components represented by each number in the attached diagram are listed below: 1. Slide rail; 2. Fixed frame; 3. Fixed grinding assembly; 4. Slide table; 5. Sliding frame; 6. Moving grinding assembly; 7. Linear encoder; 8. Hydraulic cylinder; 9. Pull rope; 10. Support frame; 11. Vision inspection camera; 12. Fixed roller; 13. First motor; 14. Moving roller; 15. Second motor; 16. Mounting shaft; 17. Drive wheel; 18. Drive belt; 19. Suction hood; 20. Suction hose; 21. Drop rack; 22. Buffer guide; 23. Elastic connector; 24. Waste conveyor belt; 25. Drop chute. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] This utility model provides a technical solution: Please refer to Figures 1-5A wood peeling device includes a slide rail 1, a fixed frame 2 at one end of the slide rail 1, a fixed sanding assembly 3 on the fixed frame 2, two sets of slide rails 1 symmetrically arranged, a slide table 4 slidably fitted on the two sets of slide rails 1, a slide frame 5 on the slide table 4, a movable sanding assembly 6 on the slide frame 5 via bearings, a linear encoder 7 and a hydraulic cylinder 8 on the side of the fixed frame 2, the two ends of the hydraulic cylinder 8 being hinged to the fixed frame 2 and the slide frame 5, a pull rope 9 mounted on the linear encoder 7, the tail end of the pull rope 9 being connected to the slide frame 5, a support frame 10 above the middle of the movable sanding assembly 6 and the fixed sanding assembly 3, and a visual inspection camera 11 mounted on the support frame 10.

[0030] Please see Figures 1-5 As one embodiment of the fixed sanding group 3: the fixed sanding group 3 includes a fixed roller 12, which is mounted on a fixed frame 2 via bearings. A first motor 13 is mounted on the fixed frame 2, and the first motor 13 is connected to the fixed roller 12 in a transmission manner. When the first motor 13 is started, the fixed roller 12 is controlled to rotate, thereby realizing the limited peeling sanding on one side of the fixed frame 2 during wood sanding.

[0031] Please see Figures 1-5 As one embodiment of the mobile sanding assembly 6: the mobile sanding assembly 6 includes two sets of mobile rollers 14, which are arranged vertically and mounted on the sliding frame 5 via bearings. The drive ends of the two sets of mobile rollers 14 are connected to a rotation drive assembly. Both the mobile rollers 14 and the fixed rollers 12 are made of one of peeling rollers, knife rollers, or grooved rollers. The fixed rollers 12 and the mobile rollers 14 cooperate so that the wood can be confined between the fixed rollers 12 and the mobile rollers 14 during sanding. The rotation direction of the mobile rollers 14 and the fixed rollers 12 is the same, and the rotation speed can be adjusted according to the type of wood being sanded. After sanding is completed, the sliding frame 5 can be controlled to move the mobile rollers 14 away from the fixed rollers 12, and the wood will automatically fall off under the action of gravity, realizing a streamlined operation and improving the efficiency of wood sanding.

[0032] Please see Figures 1-5 As one embodiment of the rotation drive assembly: the rotation drive assembly includes a second motor 15, and both ends of the moving roller 14 are provided with mounting shafts 16, which are mounted on the sliding frame 5 through the cooperation of the mounting shafts 16 and bearings. The second motor 15 is connected to one of the mounting shafts 16 for transmission, and a rotation transmission structure is provided between the two sets of mounting shafts 16.

[0033] The rotational transmission structure includes drive wheels 17, which are mounted on mounting shafts 16. A drive belt 18 is provided between the two sets of drive wheels 17. When the second motor 15 is started, the corresponding mounting shaft 16 can be rotated. Through the cooperation of the mounting shaft 16, drive wheels 17, and drive belt 18, the rotation of another set of mounting shafts 16 can be controlled. The rotation of the mounting shafts 16 drives the rotation of the moving rollers 14, thereby realizing the rotational drive of the two sets of moving rollers 14. Here, the drive wheels 17 can be installed with a suitable transmission ratio according to the type and diameter of the wood being processed, so as to achieve differential sanding and improve the peeling effect of the wood. The cooperation between the drive wheels 17 and the drive belt 18 can be a sprocket and chain cooperation or a synchronous pulley and synchronous belt cooperation.

[0034] Please see Figures 1-5 As one embodiment of the support frame 10: the support frame 10 is provided with a suction hood 19, which faces the middle area between the fixed roller 12 and the moving roller 14. The suction hood 19 is provided with a suction hose 20, which is connected to a negative pressure suction dust collection device. The negative pressure suction dust collection device is a commonly used dust removal device. The specific structure of the device will not be described in detail in this utility model. Its working principle and the way it cooperates with the suction hood 19 in this utility model are well known. During the wood peeling and sanding process, under the action of the negative pressure suction at the suction hood 19, the dust and small-diameter debris generated during the wood peeling process will be sucked away by the suction hood 19, thereby achieving effective dust removal during the wood peeling process and improving the cleanliness of the operation.

[0035] Please see Figures 1-5 As one embodiment of the fixed roller 12: a material drop frame 21 is provided in the area below the fixed roller 12 and the moving roller 14. A buffer guide 22 is hinged on the material drop frame 21, and an elastic connector 23 is provided between the buffer guide 22 and the material drop frame 21. After the sanding is completed, the moving roller 14 will move away from the fixed roller 12 under the drive of the sliding frame 5, so that the sanded wood will fall directly downwards and land on the buffer guide 22. The buffer guide 22 will guide the wood, realizing the automatic discharge of the wood after debarking. After this step, a conveyor belt structure for transporting timber can be connected to receive the timber and transport it, improving the efficiency of assembly line operation. During this process, the falling timber impacts and squeezes the buffer guide 22, which transmits the impact force to the elastic connector 23, thereby reducing the impact damage when the timber falls. In this utility model, the elastic connector 23 can be a spring, a gas spring rod, a rubber shock absorber, etc. If a gas spring rod is used, it is preferable that the gas spring rod is hinged to both the dropping frame 21 and the buffer guide 22.

[0036] Please see Figures 1-5As one implementation of the material dropper 21: a waste conveyor belt 24 is provided below the material dropper 21. The material dropper 21 and the buffer guide 22 are both equipped with material drop troughs 25 to cooperate with the material drop conveyor belt. In this way, most of the wood chips and waste generated during the sanding process can fall directly onto the waste conveyor belt 24 through the material drop troughs 25 and be transported by the waste conveyor belt 24. The waste generated during the wood peeling process is directly transported away, avoiding accumulation at the sanding and peeling position.

[0037] In summary, the working principle and specific workflow of this utility model are as follows:

[0038] In use, this utility model can use existing belt conveyor equipment to transport the wood to be peeled to a suitable position above the fixed roller 12 and drop it between the fixed roller 12 and the two sets of moving rollers 14. Since the gap between the fixed roller 12 and the two sets of moving rollers 14 is large, no precise docking is required to achieve stable feeding.

[0039] During sanding, the first motor 13 and the second motor 15 are started. The first motor 13 controls the rotation of the fixed roller 12. At the same time, the rotation of the two sets of moving rollers 14 is driven by the cooperation of the first motor 13, the mounting shaft 16, the drive wheel 17 and the drive belt 18. Thus, the wood is debarked and sanded by the rotation of the fixed roller 12 and the moving rollers 14.

[0040] During this process, the straightness of the wood can be detected by the change in the pulling amplitude of the pull rope 9 in the linear encoder 7. When the straightness of the wood is insufficient, the pulling amplitude of the pull rope 9 changes significantly. When the straightness of the wood is qualified, the pulling amplitude of the pull rope 9 changes slightly. When the change amplitude reaches the set range, the straightness of the wood is determined to be qualified.

[0041] Meanwhile, this utility model uses a visual inspection camera 11 to observe the proportion of the wood surface with bark color to detect the peeling rate of the wood. The visual inspection camera 11 uses an existing industrial camera to collect images of the wood peeling process and transmits the data to an external PLC control system for analysis, thereby determining whether the peeling rate meets the standard.

[0042] The cooperative use of the PLC controller and the visual inspection camera 11 is existing technology, and this utility model will not elaborate on it.

[0043] When the roundness and straightness of the wood and the peeling rate are qualified, the hydraulic cylinder 8 is extended, thereby driving the slide table 4 to move the sliding frame 5 away from the fixed frame 2, so that the sliding frame 5 drives the moving roller 14 away from the fixed roller 12, and the wood will be automatically dropped under the action of gravity.

[0044] The timber moves downwards and lands on the buffer guide 22, where it is guided to achieve automatic discharge after the timber has been debarked. During this process, the falling timber impacts and squeezes the buffer guide 22, which transmits the impact force to the elastic connector 23. The elastic connector 23 absorbs the impact force, thereby reducing the impact damage when the timber falls. After this step, a conveyor belt structure for transferring timber can be connected to achieve the receiving and transporting of timber, improving the efficiency of assembly line operation.

[0045] During the wood peeling process, the large pieces of waste generated fall directly downwards under the action of gravity, pass through the discharge chute 25 and land on the waste conveyor belt 24 for timely transport away;

[0046] Meanwhile, the small particles and dust generated can be sucked up by the suction hood 19 and transported to the negative pressure suction dust collection equipment through the suction hose 20 for collection and treatment.

[0047] This invention can automate the process of wood processing, improve processing efficiency, and automatically detect the roundness and straightness of wood as well as the peeling rate, thereby improving the standardization of wood peeling processing.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wood peeling device, comprising a slide rail (1), characterized in that: A fixed frame (2) is provided at one end of the slide rail (1). A fixed grinding assembly (3) is provided on the fixed frame (2). Two sets of slide rails (1) are symmetrically arranged. A slide table (4) is slidably fitted on the two sets of slide rails (1). A sliding frame (5) is provided on the slide table (4). A movable grinding assembly (6) is provided on the sliding frame (5) through a bearing. A linear encoder (7) and a hydraulic cylinder (8) are provided on the side of the fixed frame (2). The two ends of the hydraulic cylinder (8) are hinged to the fixed frame (2) and the sliding frame (5). A pull rope (9) is mounted on the linear encoder (7). The tail end of the pull rope (9) is connected to the sliding frame (5). A support frame (10) is provided above the middle of the movable grinding assembly (6) and the fixed grinding assembly (3). A visual inspection camera (11) is provided on the support frame (10).

2. The wood peeling device according to claim 1, characterized in that: The fixed grinding assembly (3) includes a fixed roller (12), which is mounted on a fixed frame (2) via bearings. A first motor (13) is provided on the fixed frame (2), and the first motor (13) is connected to the fixed roller (12) in a transmission connection.

3. The wood peeling device according to claim 2, characterized in that: The mobile grinding assembly (6) includes a mobile roller (14), which is arranged in two sets, and is mounted on a sliding frame (5) via bearings. The drive ends of the two sets of mobile rollers (14) are connected to a rotation drive assembly.

4. A wood peeling device according to claim 3, characterized in that: The rotation drive assembly includes a second motor (15), and both ends of the moving roller (14) are provided with mounting shafts (16), which are mounted on the sliding frame (5) through the cooperation of the mounting shafts (16) and bearings. The second motor (15) is connected to one of the mounting shafts (16) for transmission, and a rotation transmission structure is provided between the two sets of mounting shafts (16).

5. A wood peeling device according to claim 4, characterized in that: The rotational transmission structure includes a drive wheel (17), which is mounted on a mounting shaft (16), and a drive belt (18) is provided between the two sets of drive wheels (17).

6. A wood peeling device according to claim 3, characterized in that: The support frame (10) is provided with a suction hood (19), which faces the middle area between the fixed roller (12) and the moving roller (14). The suction hood (19) is provided with a suction hose (20), which is connected to a negative pressure suction dust collection device.

7. A wood peeling device according to claim 6, characterized in that: A material dropper (21) is provided in the area below the fixed roller (12) and the moving roller (14). A buffer guide (22) is hinged on the material dropper (21). An elastic connector (23) is provided between the buffer guide (22) and the material dropper (21).

8. A wood peeling device according to claim 7, characterized in that: A waste conveyor belt (24) is provided below the material drop frame (21), and a material drop chute (25) is provided on both the material drop frame (21) and the buffer guide frame (22) in coordination with the material drop conveyor belt.

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