A surface-finishable oriented strand board (OSB) installation equipment

Abstract

This invention relates to the field of particleboard production equipment technology, specifically to a surface-oriented particleboard (SOC) laying device, comprising a laying roller, sliders, slide rails, and an adjustment assembly. The laying roller is rotatably connected to the sliders at both ends; the sliders are slidably connected to the slide rails; the slide rails are arc-shaped and centered on the midpoint of the laying roller's axis; the adjustment assembly connects to two sliders respectively, allowing the two sliders to move in opposite directions along their corresponding slide rails to adjust and fix the tilt angle of the laying roller. This invention can adapt to the high-precision continuous laying requirements of multi-specification particleboard.

Description

Technical Field

[0001] This invention relates to the field of particleboard production equipment technology, specifically to a surface-finishable oriented strand board (OSB) installation equipment. Background Technology

[0002] In the manufacturing of oriented strand board (OSB) with decorative finishes, the layup process is a crucial step that determines the product's mechanical properties and surface quality. Traditional production lines generally employ a fixed layup roller structure, as shown in the utility model patent with authorization announcement number CN213260035U, which uses a directional valve in conjunction with a scraper conveyor to achieve layered layup of wood chips. However, such devices have a fundamental flaw: the layup rollers and bearing seats are rigidly fixed, making it impossible to adjust the tilt angle according to the shape of the wood chips and process parameters, thus limiting the accuracy of directional layup. Specifically, long wood chips (>100mm) tend to deviate from the preset direction when falling due to the coupling of gravity and inertia, causing abnormal density gradients between board layers and excessive surface waviness, directly affecting the longitudinal static bending strength and modulus of elasticity of the finished board.

[0003] Existing improvement solutions mostly focus on optimizing material diversion (such as the multi-stage directional valve design in CN213260035U) or upgrading the pre-compression process, but none of them have broken through the physical constraint of the fixed angle of the laying roller. Some alternative processes use manual laying or intermittent production, which can improve orientation accuracy to a limited extent, but have new defects such as low efficiency and insufficient environmental friendliness of adhesives. Studies have shown that the core contradiction of orientation deviation lies in the rigid coupling between the geometric parameters of the laying roller and the dynamics of the wood shavings: when the length of the wood shavings, the amount of adhesive applied, or the moisture content fluctuates, the laying roller with a fixed inclination angle cannot achieve self-alignment of the wood shavings through trajectory correction. Especially in the core / surface composite laying, frequent shutdowns are required to replace the roller or adjust the conveying mechanism, which seriously restricts the efficiency of continuous operation of the production line.

[0004] Therefore, developing a paving roller mechanical structure with dynamic angle adjustment capability to achieve process self-adaptation of orientation accuracy has become a key path to break through the industry's technical bottleneck. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a surface-finishable oriented strand board (OSB) laying equipment that can adapt to the high-precision continuous laying requirements of multi-specification SSBs.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A surface-finishable oriented strand board (OSB) laying device includes a laying roller, sliders, a slide rail, and an adjustment assembly. The laying roller is rotatably connected at both ends to the sliders. The sliders are slidably connected to the slide rails. The slide rails are arc-shaped and centered on the midpoint of the axis of the laying roller. The adjustment assembly connects to two sliders respectively, and the two sliders can be moved in opposite directions along the corresponding slide rails via the adjustment assembly to adjust and fix the tilt angle of the laying roller.

[0008] As a further embodiment of the present invention: wherein the adjusting component consists of two fastening screws that correspond one-to-one with the slider, the fastening screws being threaded through the sliders, and tightening the fastening screws causing the ends of the fastening screws to abut against the slide rail.

[0009] As a further embodiment of the present invention: the adjusting assembly includes a four-bar linkage, a worm gear, a worm, and a drive motor; the four-bar linkage is composed of two sets of parallel first and second links rotatably connected end to end; the slider is rotatably connected to the first link; the center of the worm gear is fixedly connected to the middle of the second link; the worm is driven by the worm gear; and the drive motor is connected to the worm to drive the worm to rotate.

[0010] As a further embodiment of the present invention, the multiple slide rails on the same side are connected end to end to form a wave-shaped structure.

[0011] As a further embodiment of the present invention, it further includes a conveyor, a lift, and an angle adjustment mechanism; the conveyor is used to transport wood shavings to be laid; the lift is positioned below the conveyor to adjust the falling height of the wood shavings; the lower end of the angle adjustment mechanism is connected to the lift, and the upper end of the angle adjustment mechanism is connected to the conveyor to adjust the falling angle of the wood shavings.

[0012] As a further embodiment of the present invention: the angle adjustment mechanism includes a bracket, a rotating plate, and an electric push rod; the lower end of the bracket is fixedly connected to the elevator; one end of the rotating plate is rotatably connected to the upper end of the bracket; the two ends of the electric push rod are respectively rotatably connected to the other end of the rotating plate and the middle part of the bracket.

[0013] As a further embodiment of the present invention: wherein the lifting platform is a scissor lift platform, and the scissor lift platform is driven by a hydraulic cylinder.

[0014] As a further embodiment of the present invention, it further includes a PLC controller and a detection module; the PLC controller is connected to the drive motor, or to the electric push rod and the hydraulic cylinder; the detection module is connected to the PLC controller and can detect the type of wood shavings, moisture content, and amount of adhesive applied.

[0015] As a further embodiment of the present invention, the detection module includes a high-speed camera, a microwave moisture meter, and an infrared spectrometer.

[0016] By adopting the above technical solution, the present invention will have the following beneficial effects:

[0017] 1. By adjusting the components to move the two sliders in the opposite direction along the corresponding slide rails, the laying roller rotates with its axis midpoint as the center, thereby adjusting the tilt angle of the laying roller so that the groove on the laying roller is parallel to the falling trajectory of the wood shavings. This allows the directional laying accuracy to be maintained without stopping the machine to change the conveying mechanism, enabling continuous operation of the production line. Compared with the fixed-angle laying rollers of the prior art, this invention can adapt to the high-precision continuous laying requirements of wood shavings of various specifications.

[0018] 2. By adjusting the angle adjustment structure, the lifting platform and the adjustment components, the appropriate falling angle and height of the wood shavings and the tilt angle of the paving roller can be adjusted, achieving a significant synergistic effect. The three components work together to optimize the directional arrangement accuracy and interlayer bonding force.

[0019] 3. By using a PLC controller and detection module, the entire process from detection to execution can be completed without manual intervention, making it more suitable for continuous production and providing higher control precision. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 for Figure 1 Top view of the surface-adjustable oriented strand board (OSB) laying equipment described in Example 1 before adjusting the tilt angle of the laying rollers;

[0022] Figure 2 for Figure 1 Top view of the surface-decorative oriented strand board (OSB) laying equipment described in Example 1 after adjusting the tilt angle of the laying rollers;

[0023] Figure 3 for Figure 1 A side view of the oriented strand board (OSB) installation equipment described in Example 1;

[0024] Figure 4 This is a side view of the oriented strand board (OSB) installation equipment described in Example 2.

[0025] Figure 5This is a perspective view of the adjustment components of the surface-decorative oriented strand board (OSB) installation equipment described in Example 2;

[0026] Figure 6 This is a side view of the oriented strand board (OSB) installation equipment described in Example 3.

[0027] Figure 7 This is a side structural diagram of the surface-decorative oriented strand board (OSB) installation equipment described in Example 4.

[0028] The correspondence between the labels and component names in the attached figures is as follows:

[0029] 1. Paving roller; 2. Slider; 21. Bearing seat; 3. Slide rail; 41. Fastening screw; 42. Four-bar linkage; 421. First link; 422. Second link; 43. Worm gear; 44. Worm; 45. Drive motor; 46. Vertical rod; 5. Conveyor; 6. Elevator; 61. Hydraulic cylinder; 7. Angle adjustment mechanism; 71. Support; 72. Turning plate; 73. Electric push rod; 74. Connector; 8. PLC controller; 81. Detection module. Detailed Implementation

[0030] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the following description is to be considered exemplary in nature and not restrictive.

[0031] Example 1

[0032] Please refer to Figure 1 and Figure 2 The oriented strand board (OSB) laying equipment of this embodiment includes laying rollers 1, sliders 2, slide rails 3, and adjustment components. Multiple laying rollers 1 are provided, all mounted within the frame along the width direction, adopting a design similar to existing roller beds. Furthermore, each laying roller 1 is horizontally rotatably connected at both ends to bearing seats 21, which are vertically rotatably connected to the sliders 2 via slewing bearings. The sliders 2 are cuboid in shape and slidably fitted onto the slide rails 3. The slide rails 3 are arc-shaped and fixedly positioned outside the frame with the midpoint of the laying roller 1's axis as the center. The adjustment components connect to two sliders 2 respectively. By adjusting the components, the two sliders 2 can be moved in opposite directions along the corresponding slide rails 3 to adjust and fix the tilt angle of the laying roller 1. It should be noted that the motor driving the laying roller 1 is fixedly connected to the sliders 2, allowing the motor to rotate with the laying roller 1 to adjust its angle, thus not affecting the transmission of the laying roller 1.

[0033] As a preferred embodiment, considering that the slide rail 3 is arc-shaped and centered on the midpoint of the axis of the paving roller 1, resulting in a relatively long arc length of the slide rail 3, multiple slide rails 3 on the same side of the frame can be welded end to end to form a wave-shaped structure. The two ends of the wave-shaped structure are respectively welded to the two ends of the frame to save the frame space occupied.

[0034] Specifically, such as Figure 3 As shown, the adjustment component consists of two fastening screws 41 that correspond one-to-one with the slider 2. The fastening screws 41 are threaded through and connected to the slider 2. Tightening the fastening screws 41 will cause the end of the fastening screws 41 to abut against the slide rail 3, thereby fixing the slider 2. Loosening the fastening screws 41 will allow the slider 2 to be unrestricted, thereby enabling manual movement of the slider 2 along the slide rail 3 for adjustment.

[0035] In this embodiment, when laying wood shavings of different specifications, the length, amount of adhesive applied, or moisture content of the wood shavings may change, causing the falling trajectory of the wood shavings to deviate from the preset path. At this time, it is necessary to adjust the two sliders 2 in the opposite direction along the corresponding slide rail 3 by adjusting the component, so that the laying roller 1 rotates with its axis midpoint as the center, thereby adjusting the tilt angle of the laying roller 1, so that the groove on the laying roller 1 is parallel to the falling trajectory of the wood shavings. In this way, the directional laying accuracy can be maintained without stopping the machine to change the conveyor 5, so that the production line can operate continuously.

[0036] Example 2

[0037] Please refer to Figure 4 and Figure 5 The difference between this embodiment and Embodiment 1 is that the adjustment assembly includes a four-bar linkage 42, a worm gear 43, a worm 44, and a drive motor 45. The four-bar linkage 42 is composed of two sets of parallel first links 421 and second links 422 connected end to end. Multiple vertical rods 46, each corresponding to a slider 2, are vertically welded onto the first link 421. These vertical rods 46 are evenly spaced along the length of the first link 421. The motor driving the paving roller 1 is mounted on the second link 422 and can rotate with the second link 422. The slider 2 is axially fixedly rotatably sleeved on the upper end of the vertical rods 46. Two worm gears 43 are provided, with their centers fixedly connected to the middle parts of the two second links 422 respectively. The worm 44 extends along the length of the first link 421, and its two ends are respectively connected to the aforementioned worm gears 43. The drive motor 45 is fixedly mounted outside the four-bar linkage 42, and its output shaft is coaxially connected to the worm 44 to drive the worm 44 to rotate.

[0038] In this embodiment, when laying wood shavings of different specifications, the drive motor 45 drives the worm gear 44 to rotate. The rotation of the worm gear 44 drives the worm wheel 43 to rotate. The rotation of the worm wheel 43 drives the first connecting rod 421 to rotate, which in turn drives the two second connecting rods 422 to move in opposite directions. The two second connecting rods 422 move in opposite directions, which in turn drives the two sliders 2 to move in opposite directions along the corresponding slide rails 3, thereby adjusting the tilt angle of the laying roller 1. After the adjustment is completed, the self-locking mechanism of the worm wheel 43 is used to fix the laying roller 1. Compared with the manual adjustment in Embodiment 1, the adjustment using the transmission mechanism of the worm wheel 43 and worm gear 44 is more accurate and more convenient and labor-saving.

[0039] Example 3

[0040] Please refer to Figure 6 Based on Example 2, the surface-decorative oriented strand board (OSB) paving equipment of this example further includes a conveyor 5, a lift 6, and an angle adjustment mechanism 7. The conveyor 5 can be an existing scraper conveyor used to convey the shavings to be paved to the paving roller 1. The lift 6 is located below the conveyor 5 at the height of the conveyor 5, thereby adjusting the falling height of the shavings. The lower end of the angle adjustment mechanism 7 is connected to the contact surface between the lift 6 and the conveyor 5, so that it can rise and fall synchronously with the lift 6. The upper end of the angle adjustment mechanism 7 is connected to the conveyor 5, so that the shavings output by the conveyor 5 are thrown out after passing through the angle adjustment mechanism 7 and fall onto the paving roller 1. The throwing angle of the shavings can be adjusted by the angle adjustment mechanism 7, thereby adjusting the falling angle of the shavings.

[0041] In this embodiment, when the falling height of the wood shavings is adjusted to a suitable level, the shavings experience less interference during their descent, and can better maintain the initial orientation imparted during feeding. That is, after orientation treatment, the wood shavings, falling from a suitable height, can still maintain a high proportion of shavings aligned in the predetermined direction when they reach the paving surface. When the falling angle of the wood shavings is adjusted to a suitable level, the falling angle matches the long axis direction of the wood shavings, which can guide the wood shavings to land on the paving surface in a more advantageous posture, reducing the tumbling and rotation of the wood shavings and enhancing the orientation of the wood shavings arrangement.

[0042] Specifically, the angle adjustment mechanism 7 includes a bracket 71, a rotating plate 72, and an electric push rod 73; the lower end of the bracket 71 is welded to the elevator 6; one end of the rotating plate 72 is rotatably connected to the upper end of the bracket 71 and is connected to the conveyor 5 through the existing connector 74; the two ends of the electric push rod 73 are respectively rotatably connected to the other end of the rotating plate 72 and the middle of the bracket 71. By controlling the extension and retraction of the electric push rod 73, the rotating plate 72 is driven to rotate, so that when the wood shavings output by the conveyor 5 pass through the rotating plate 72, the falling angle of the wood shavings can be adjusted.

[0043] More specifically, the aforementioned lifting platform 6 can be an existing scissor lift platform. Scissor lift platforms are typically driven by hydraulic cylinders 61, which extend or retract the scissor arms through the extension and retraction of the cylinders. As the scissor arms extend, the platform rises; when descent is required, hydraulic oil is returned to the tank via a control valve, the scissor arms retract, and the platform lowers. The conveyor 5 and the angle adjustment mechanism 7 are fixedly installed on the platform of the scissor lift platform to achieve synchronous lifting.

[0044] This embodiment achieves a significant synergistic effect by adjusting the appropriate falling angle (α), height (H) of the wood shavings and the tilt angle (β) of the laying roller 1. The combined effect of these three factors optimizes the orientation accuracy and interlayer bonding strength.

[0045] 1. By widening the paving coverage area with α and precisely correcting the particle posture with β, the combination of the two can reduce the orientation deviation in the edge area. Experimental data: the edge θ decreased from 8.2° to 3.5°.

[0046] 2. When H is low (e.g., 50cm), the shaving speed is high, and the deflection caused by inertia is offset by increasing β to 25°; when H is high (150cm), the speed is low, and β can be slightly reduced to 18° (experimental verification: interlayer bonding force is increased by 23%).

[0047] Therefore, the coordinated adjustment of the drop parameters (α / H) and the tilt angle (β) of the paving roller 1, through the coupling effect of spatial trajectory control (α / H) and end posture correction (β), can significantly improve the orientation accuracy and sheet performance.

[0048] Example 4

[0049] Please refer to Figure 7 Based on Example 3, the surface-decorative oriented strand board (OSB) installation equipment in this example also includes a PLC controller 8 and a detection module 81. The PLC controller 8 is connected to a drive motor 45, an electric push rod 73, and a hydraulic cylinder 61. The detection module 81 includes a high-speed camera, a microwave moisture meter, and an infrared spectrometer, which are respectively connected to the PLC controller 8. The three can respectively detect the type of wood chips, moisture content, and amount of adhesive applied and transmit the data to the PLC controller 8.

[0050] In this embodiment, when the conveyor 5 transports wood shavings into the detection area of ​​the detection module 81, a high-speed camera connected to the image recognition system captures images of the wood shavings (analyzing their length, width, and aspect ratio), and transmits the data to the PLC controller 8. The PLC controller 8 matches the wood shavings to a preset database to determine their air resistance coefficient and optimal drop parameter range (e.g., for long wood shavings, H needs to be reduced and α increased). A microwave moisture meter uses emitted microwaves to detect the moisture content of the wood shavings in real-time and non-contact, transmitting the data to the PLC controller 8. The PLC controller 8 determines the target value based on the control logic: "Moisture content ↑ → Wood shaving density ↑ → H needs to be reduced to decrease drop time, while α needs to be increased to counteract excessive vertical speed caused by gravity." An infrared spectrometer determines the amount of adhesive applied by detecting the adhesive coverage, transmitting the data to the PLC controller 8. The PLC controller 8 determines the target value based on the control logic: "Adhesive amount ↑ → Wood shaving adhesion ↑ → H needs to be increased to prolong drop time and promote dispersion, while α needs to be reduced to prevent adhesive adhesion and accumulation." After the target value is determined, the PLC controller 8 controls the drive motor 45, electric push rod 73 and hydraulic cylinder 61 to perform adjustment according to the target value.

[0051] In this example, since no manual intervention is required from detection to execution, it is more suitable for continuous production and has higher control precision compared to Example 3.

[0052] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A faced oriented strand board laying apparatus, characterized in that, It includes a paving roller (1), a slider (2), a slide rail (3), and an adjustment component; the two ends of the paving roller (1) are rotatably connected to the slider (2); the slider (2) is slidably connected to the slide rail (3); the slide rail (3) is arc-shaped and centered on the midpoint of the axis of the paving roller (1); the adjustment component is connected to two sliders (2) respectively, and the two sliders (2) can be moved in opposite directions along the corresponding slide rail (3) through the adjustment component to adjust and fix the tilt angle of the paving roller (1).

2. The finishable oriented strand board laying apparatus according to claim 1, characterized in that, The adjustment component consists of two fastening screws (41) that correspond one-to-one with the slider (2). The fastening screws (41) are threaded through the slider (2). Tightening the fastening screws (41) will cause the end of the fastening screws (41) to abut against the slide rail (3).

3. The surface-decorative oriented strand board (OSB) installation equipment according to claim 1, characterized in that, The adjustment assembly includes a four-bar linkage (42), a worm gear (43), a worm (44), and a drive motor (45). The four-bar linkage (42) is composed of two sets of parallel first links (421) and second links (422) connected end to end. The slider (2) is rotatably connected to the first link (421). The worm gear (43) is fixedly connected to the middle of the second link (422). The worm (44) is driven by the worm gear (43). The drive motor (45) is connected to the worm (44) to drive the worm (44) to rotate.

4. The surface-decorative oriented strand board (OSB) installation equipment according to claim 1, characterized in that, Multiple slide rails (3) on the same side are connected end to end to form a wave-shaped structure.

5. The surface-decorative oriented strand board (OSB) installation equipment according to claim 1, characterized in that, It also includes a conveyor (5), a lift (6) and an angle adjustment mechanism (7); the conveyor (5) is used to transport the wood shavings to be laid; the lift (6) is attached to the conveyor (5) below to adjust the falling height of the wood shavings; the lower end of the angle adjustment mechanism (7) is connected to the lift (6), and the upper end of the angle adjustment mechanism (7) is connected to the conveyor (5) to adjust the falling angle of the wood shavings.

6. The surface-decorative oriented strand board (OSB) installation equipment according to claim 5, characterized in that, The angle adjustment mechanism (7) includes a bracket (71), a rotating plate (72), and an electric push rod (73); the lower end of the bracket (71) is fixedly connected to the elevator (6); one end of the rotating plate (72) is rotatably connected to the upper end of the bracket (71); the two ends of the electric push rod (73) are respectively rotatably connected to the other end of the rotating plate (72) and the middle part of the bracket (71).

7. The surface-decorative oriented strand board (OSB) installation equipment according to claim 6, characterized in that, The lifting platform (6) is a scissor lift platform, which is driven by a hydraulic cylinder (61).

8. The surface-decorative oriented strand board (OSB) installation equipment according to claim 3, characterized in that, It also includes a PLC controller (8) and a detection module (81); the PLC controller (8) is connected to the drive motor (45); the detection module (81) is connected to the PLC controller (8) and can detect the type of wood shavings, moisture content and amount of glue applied.

9. The surface-decorative oriented strand board (OSB) installation equipment according to claim 7, characterized in that, It also includes a PLC controller (8) and a detection module (81); the PLC controller (8) is connected to the electric push rod (73) and the hydraulic cylinder (61); the detection module (81) is connected to the PLC controller (8) and can detect the type of wood shavings, moisture content and amount of adhesive applied.

10. The surface-decorative oriented strand board (OSB) installation equipment according to claim 8 or 9, characterized in that, The detection module (81) includes a high-speed camera, a microwave moisture meter, and an infrared spectrometer.

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