Wood-plastic board conveying line automatic deviation rectifying device

Abstract

The application discloses a kind of wood plastic board conveying line automatic deviation rectifying device, including chassis, the two sides of the chassis are symmetrically provided with driving roller and driven roller, the periphery of the driving roller and the driven roller is provided with conveying belt, the chassis is connected by support frame and is provided with the baffle symmetrically arranged on the both sides of conveying belt, one end of the driven roller is provided with movable support frame, the opposite side of the baffle is symmetrically rotatably connected and provided with first limiting guide piece, one end of the first limiting guide piece is rotatably connected with the baffle, and the other end is rotatably connected and provided with second limiting guide piece.The application can realize the stable and accurate conveying of wood plastic board, effectively prevent the board from running deviation and falling, meet the continuous conveying demand of wood plastic board processing and production, and can be adjusted according to the width.

Description

Technical Field

[0001] This invention relates to the field of conveying technology, specifically an automatic deviation correction device for a wood-plastic composite board conveyor line. Background Technology

[0002] Wood-plastic composite board is a high-tech, green, and environmentally friendly new decorative material made primarily from wood (wood cellulose, plant cellulose) as the base material, thermoplastic polymer materials (plastics), and processing aids. The mixture is then heated and extruded through mold equipment.

[0003] Chinese Patent Publication No. CN116986261A discloses a core board transportation and correction mechanism. This mechanism includes a transportation mechanism, a limiting structure disposed on the transportation mechanism, a correction component connected to the limiting structure and correcting the core board's alignment, a driving mechanism installed inside the transportation mechanism to move the limiting structure and the correction component, an adjusting structure disposed inside the correction component, and a locking component connected to and fixing the correction component. The correction component includes a correction plate, the outer side of which is connected to the outer wall of the limiting structure. A guide plate is connected to the left side of the correction plate, and mounting plates are movably sleeved inside both the guide plate and the correction plate.

[0004] The solution includes an adjustable correction component, but in practice, the length of the correction component is fixed. Due to the length of the production line, correction components of different lengths need to be equipped, which makes the solution inflexible.

[0005] Chinese Patent Publication No. CN109230732A discloses a printing correction device. The device includes a correction limiting structure arranged in front of the inkjet printer along the printing conveying direction. The correction limiting structure includes two limiting plates arranged on the frame. The distance between the two limiting plates is adjustable. Several pairs of conveying rollers are rotatably arranged on the frame. The material to be printed is wound on the conveying rollers. The two limiting plates are located on both sides of the material to be printed. Rollers are rotatably arranged on the side of the two limiting plates facing the material to be printed, and the rollers are set against the material to be printed.

[0006] The correction and limiting structure set in this solution also cannot be flexibly adjusted to adapt to the length of the production line.

[0007] Chinese Patent Publication No. CN117718615A discloses an online laser blanking sheet material automatic limiting and correction device and method. It adopts two sets of bidirectional independent electric limiting devices with a common base and a common sliding guide rail to limit the position of the conveyed sheet material in both directions. Each set of electric limiting devices includes a motor, a distance sensor, a limiting roller, a limiting slider, a stop plate, a limit switch, and a drive shaft. The motor, distance sensor, and limit switch are all mounted on the base of the limiting device. The motor is connected to the drive shaft. The limiting roller and the stop plate are fixed on the limiting slider and connected to the drive shaft and the sliding guide rail.

[0008] This solution also fails to address how to flexibly match the correction structure with the conveyed materials as the production line grows, and how to continuously ensure the effectiveness of the correction function. Summary of the Invention

[0009] The purpose of this invention is to provide an automatic deviation correction device for a wood-plastic composite board conveyor line to solve the problems mentioned in the background art.

[0010] To achieve the above objectives, the present invention provides the following technical solution: An automatic deviation correction device for a wood-plastic composite board conveyor line includes a base frame. A drive roller and a driven roller are symmetrically arranged on both sides of the base frame. A conveyor belt is fitted around the drive roller and the driven roller. Baffles symmetrically arranged on both sides of the conveyor belt are connected to the base frame via a support frame. A movable support frame is provided at one end of each driven roller. First limiting guide members are symmetrically rotatably connected to the opposite sides of the baffles. One end of the first limiting guide member is rotatably connected to the baffle, and the other end is rotatably connected to a second limiting guide member.

[0011] As a further embodiment of the present invention: both the driving roller and the driven roller are mounted on the base frame; the driving roller is disposed at one end of the base frame, the driving roller includes a drive shaft and a drive motor, the driven roller includes a rotating shaft and a rotating drum, and the output end of the drive motor is connected to the drive shaft for transmission.

[0012] As a further embodiment of the present invention: the driven roller is disposed at the other end of the base frame, the driven roller includes a rotating shaft and a rotating drum, the rotating drum and the rotating shaft are fixedly connected; the conveyor belt is wrapped and tensioned between the drive roller and the driven roller.

[0013] As a further embodiment of the present invention: the support frame is arranged at intervals on the base frame along the conveying direction of the conveyor belt, the support frame includes a first crossbeam, a first support connecting plate and a first support roller, the first crossbeam is fixedly installed on the base frame, the first support connecting plate is fixedly connected to the first crossbeam, the first support roller is rotatably installed on the first support connecting plate, and the top of the first support roller abuts against the lower surface of the conveyor belt.

[0014] As a further embodiment of the present invention: the movable support frame includes a second crossbeam, a support plate, a second support roller, and a second support connecting plate. The second crossbeam is fixedly installed on the base frame, the support plate is fixedly installed on the second crossbeam, the second support connecting plate is fixedly connected to the support plate, and the second support roller is rotatably installed on the second support connecting plate, with the second support roller abutting against the lower surface of the conveyor belt.

[0015] As a further embodiment of the present invention: the baffle is disposed on both sides of the conveyor belt along the conveying direction of the conveyor belt, and is fixedly installed on the base frame by the first support connecting plate, and is located above the conveyor belt.

[0016] As a further embodiment of the present invention: the first limiting guide includes a first clamping plate, a first pulley, a first belt, a first rotating pin and a rotating connector. The first pulley is rotatably mounted on both ends of the first clamping plate, the first belt is wrapped around the first pulleys at both ends, and the first rotating pin is installed at the central axis position of the first pulley.

[0017] As a further embodiment of the present invention: the rotating connector includes a washer, a wheel axle and a transmission belt; two sets of washer are symmetrically arranged, one side of the washer is rotatably connected to the first clamping plate, two wheel axles are symmetrically rotatably connected between the two sets of washer, the wheel axles and the first rotating pin are coaxially connected, and a transmission belt is sleeved around the wheel axles.

[0018] As a further embodiment of the present invention: the second limiting guide includes a second clamping plate, a second pulley, a second belt, and a second rotating pin. The second clamping plate is rotatably mounted with second pulleys at both ends, and the second belt is wrapped around and fitted onto the second pulleys at both ends. The second rotating pin and the washer are rotatably connected.

[0019] As a further aspect of the present invention: a sliding groove is fixedly provided on the side of the second clamping plate near the baffle, and a slider is slidably fitted in the sliding groove.

[0020] As a further aspect of the present invention: multiple sets of second limiting guide members are provided, and a first connecting cavity and a second connecting cavity are respectively connected to both sides of the slide groove on the second clamping plate. A connecting component corresponding to and adapted to the second connecting cavity is movably disposed in the first connecting cavity.

[0021] As a further aspect of the present invention: the connecting assembly includes a first insert plate that is slidably connected in the first connecting cavity, the end of the first insert plate passing through the side of the first connecting cavity, and the side of the first insert plate being rack-shaped, and a drive gear rotatably disposed in the first connecting cavity being meshed with the side of the first insert plate, and a drive shaft coaxially connected to the drive gear passing through the middle of the drive gear.

[0022] As a further embodiment of the present invention: a ratchet, a collar, and a locking plate are also installed on the drive shaft. The collar is fixedly connected in the first connecting cavity, and the ratchet and the locking plate cooperate to form a one-way lock.

[0023] As a further aspect of the present invention: the second connecting cavity is opened at the other end of the second clamping plate, and a mating groove is opened in the second connecting cavity. The mating groove and the end of the first insert plate are opposite to each other. A limiting groove is opened on one side of the mating groove, and a second limiting insert plate is elastically installed in the limiting groove.

[0024] Compared with existing technologies, the beneficial effects of this invention are as follows: This structure achieves overall stable support through the base frame; the drive roller and driven roller work together to drive the conveyor belt to operate continuously; the support frame and movable support frame work together to lift the conveyor belt at multiple points, preventing the conveyor belt from sagging and swaying; at the same time, the baffle provides lateral restraint for the wood-plastic composite board, enabling stable and precise conveying of the wood-plastic composite board, effectively preventing the board from deviating or falling off, and meeting the continuous conveying requirements of wood-plastic composite board processing and production. By adjustment, the second limiting guide can be moved closer or further away, thereby pulling one end of the first limiting guide and the second limiting guide to move synchronously. The second limiting guides on both sides move relative to each other while maintaining a parallel state. During this process, the first limiting guides on both sides can form a guiding effect, and the second limiting guide can be used to form an adjustable conveying guiding and restraining effect, effectively correcting deviations, and can be adjusted according to the width. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention.

[0026] Figure 2 This is a schematic diagram of the drive roller in this invention.

[0027] Figure 3 This is a schematic diagram of the driven roller in this invention.

[0028] Figure 4 This is a partial structural diagram of the support frame, baffle, and movable support frame in this invention.

[0029] Figure 5 This is a schematic diagram of the connection structure between the first limiting guide and the second limiting guide in this invention.

[0030] Figure 6 This is a schematic diagram of the connection structure of the first limiting guide and multiple sets of second limiting guides in this invention.

[0031] Figure 7 This is a schematic diagram of the structure of the first limiting guide in this invention.

[0032] Figure 8 This is a schematic diagram of the rotating connector in this invention.

[0033] Figure 9 for Figure 6 A magnified structural diagram of region A in the middle.

[0034] Figure 10 This is a schematic diagram of the slide groove in this invention.

[0035] Figure 11 This is a schematic diagram of the connecting component in this invention.

[0036] Figure 12 This is a schematic diagram of the mating structure of the first insert plate and the drive gear in this invention.

[0037] Figure 13 This is a schematic diagram of the cooperative structure of the drive shaft, ratchet, collar, and clamping plate in this invention.

[0038] Figure 14 This is a schematic diagram of the structure of the second connecting cavity in this invention.

[0039] Figure 15 for Figure 14 A magnified structural diagram of region B in the middle.

[0040] In the diagram: 1-Base frame, 2-Drive roller, 21-Drive shaft, 22-Drive motor, 3-Driven roller, 31-Rotating shaft, 32-Rotating drum, 4-Conveyor belt, 5-Support frame, 51-First crossbeam, 52-First support connecting plate, 53-First support roller, 6-Baffle, 7-Modible support frame, 71-Second crossbeam, 72-Support plate, 73-Second support roller, 74-Second support connecting plate, 8-First limiting guide, 81-First clamping plate, 82-First pulley, 83-First belt, 84-First rotating pin, 85-Rotating pin Connector, 8501-shim, 8502-axle, 8503-drive belt, 9-second limiting guide, 91-second clamping plate, 92-second pulley, 93-second belt, 94-second rotating pin, 95-slide groove, 9501-slider, 96-first connecting cavity, 9601-first insert plate, 9602-drive gear, 9603-drive shaft, 9604-ratchet, 9605-ring, 9606-clamping plate, 97-second connecting cavity, 9701-fitting groove, 9702-limiting groove, 9703-second limiting insert plate. Detailed Implementation Example 1

[0041] Please see Figures 1-4In this embodiment of the invention, an automatic correction device for a wood-plastic composite board conveyor line includes a base frame 1. A drive roller 2 and a driven roller 3 are symmetrically arranged on both sides of the base frame 1. A conveyor belt 4 is sleeved around the drive roller 2 and the driven roller 3. Baffles 6 symmetrically arranged on both sides of the conveyor belt 4 are connected to the base frame 1 via a support frame 5. The base frame 1 is the basic support component of the equipment. Both the drive roller 2 and the driven roller 3 are mounted on the base frame 1. The drive roller 2 is located at one end of the base frame 1 and includes a drive shaft 21 and a drive motor 22. Roller 3 includes a rotating shaft 31 and a rotating drum 32. The output end of the drive motor 22 is connected to the drive shaft 21 to provide rotational power to the drive shaft 21. The driven roller 3 is located at the other end of the base frame 1. The driven roller 3 includes a rotating shaft 31 and a rotating drum 32. The rotating drum 32 is fixedly connected to the rotating shaft 31 and can rotate synchronously with the rotating shaft 31. The conveyor belt 4 is wrapped and tensioned between the drive roller 2 and the driven roller 3 to form a closed-loop conveying circuit. The drive roller 2 drives the conveyor belt 4 to rotate through the drive shaft 21, and the driven roller 3 rotates synchronously with the conveyor belt 4 to realize power transmission.

[0042] The support frames 5 are spaced apart on the base frame 1 along the conveying direction of the conveyor belt 4. Each support frame 5 includes a first crossbeam 51, a first support connecting plate 52, and a first support roller 53. The first crossbeam 51 is fixedly mounted on the base frame 1, the first support connecting plate 52 is fixedly connected to the first crossbeam 51, and the first support roller 53 is rotatably mounted on the first support connecting plate 52. The top of the first support roller 53 abuts against the lower surface of the conveyor belt 4, providing uniform support to the conveyor belt 4. One end of the driven roller 3 is provided with a movable support frame 7, which includes a second crossbeam 7. 1. A support plate 72, a second support roller 73, and a second support connecting plate 74 are provided. The second crossbeam 71 is fixedly installed on the base frame 1. The support plate 72 is fixedly installed on the second crossbeam 71. The second support connecting plate 74 is fixedly connected to the support plate 72. The second support roller 73 is rotatably installed on the second support connecting plate 74. The second support roller 73 also abuts against the lower surface of the conveyor belt 4 to achieve partial support for the conveyor belt 4. The movable support frame 7 can finely adjust the tension and support height of the conveyor belt 4 by adjusting the installation position of the support plate 72 or the second support connecting plate 74.

[0043] The baffles 6 are arranged on both sides of the conveyor belt 4 along the conveying direction of the conveyor belt 4, and are fixedly installed on the base frame 1 by the first support connecting plate 52. They are located above the conveyor belt 4 and form a lateral limiting structure for the wood-plastic board to prevent the board from shifting during the conveying process.

[0044] This structure achieves overall stable support through the base frame 1. The drive roller 2 and the driven roller 3 work together to drive the conveyor belt 4 to operate continuously. The support frame 5 and the movable support frame 7 work together to lift the conveyor belt 4 at multiple points to prevent the conveyor belt 4 from sagging or shaking. At the same time, the baffle 6 provides lateral restraint for the wood-plastic composite board, which can achieve stable and accurate conveying of the wood-plastic composite board, effectively preventing the board from deviating or falling off, and meeting the continuous conveying requirements of wood-plastic composite board processing and production. Example 2

[0045] Based on Example 1, such as Figures 5-15 As shown, a first limiting guide 8 is symmetrically and rotatably connected to the opposite side of the baffle 6. One end of the first limiting guide 8 is rotatably connected to the baffle 6, and the other end is rotatably connected to a second limiting guide 9. The second limiting guide 9 and the baffle 6 can be slidably adapted, that is, the side of the second limiting guide 9 is movably embedded in the baffle 6. Of course, it can also be connected by a liner. The liner can support the second limiting guide 9 to prevent it from falling, and the liner will not restrict the flexibility of the second limiting guide 9 during relative movement. Part 9 can be assembled and connected to the output end of the electric telescopic push rod, or it can be connected to the bolt end of the through baffle 6. By adjustment, the second limiting guide 9 can be moved closer or further away, thereby pulling one end of the first limiting guide 8 and the second limiting guide 9 to move synchronously. The second limiting guides 9 on both sides move in a parallel state. During this process, the first limiting guides 8 on both sides can form a guiding effect. Furthermore, by using the second limiting guide 9, an adjustable conveying guiding limiting effect can be formed, which can effectively correct deviations and can be adjusted according to the width.

[0046] The first limiting guide 8 includes a first clamping plate 81, a first pulley 82, a first belt 83, a first rotating pin 84, and a rotating connector 85. The first clamping plate 81 is the main support member, with the first pulley 82 rotatably mounted at both ends. The first belt 83 is wrapped around the first pulley 82 at both ends. The first rotating pin 84 is installed at the central axis of the first pulley 82 to realize the rotational positioning of the first pulley 82. The first belt 83 can roll through the first pulley 82 on both sides. When the second limiting guide 9 is relatively close to achieve adjustment, the second limiting guide 9 rotates relative to 81 through 85. In this way, the second limiting guide 9 can always remain parallel, while the 84 on the two sets of 81 are relatively inclined and can achieve the limiting and guiding effect on the plate.

[0047] Preferably, the rotating connector 85 includes a washer 8501, a wheel axle 8502, and a transmission belt 8503. Two sets of washer 8501 are symmetrically arranged, and one side of the washer 8501 is rotatably connected to the first clamping plate 81. Two wheel axles 8502 are symmetrically rotatably connected between the two sets of washer 8501. The wheel axles 8502 and the first rotating pin 84 can be coaxially connected. The transmission belt 8503 is sleeved around the wheel axles 8502. In this way, the rotation of the first rotating pin 84 can be transmitted through cooperation. If a set of first rotating pins 84 is driven by a motor, it can also drive the second limiting guide 9 to synchronously cooperate in conveying based on the limiting guide correction.

[0048] The second limiting guide member 9 includes a second clamping plate 91, a second pulley 92, a second belt 93, and a second rotating pin 94. The second clamping plate 91 of the second limiting guide member 9 is the main support member, with the second pulleys 92 rotatably mounted at both ends. The second belt 93 is wrapped around the second pulleys 92 at both ends. The second rotating pin 94 is installed at the central axis position of the second pulleys 92 to realize the rotational positioning of the second pulleys 92. The second rotating pin 94 is rotatably connected to the washer 8501, and the second rotating pin 94 can be coaxially connected to the wheel axle 8502. In this way, the rotation of the first rotating pin 84 can be transmitted to the second rotating pin 94, thereby facilitating the second belt 93 to cooperate in conveying the wood-plastic composite board.

[0049] The second clamping plate 91 is fixedly provided with a sliding groove 95 on the side near the baffle 6. A slider 9501 is slidably fitted in the sliding groove 95. An electric telescopic push rod or a long bolt can be installed on the baffle 6 and connected to the slider 9501. This allows the second clamping plate 91 to move, and because it will drive the entire first limiting guide member 8 to rotate, the slider 9501 can be used in conjunction with the sliding groove 95 to overcome the obstacle. Furthermore, multiple sets of second limiting guide members 9 can be provided. Multiple sets of second limiting guide members 9 can be coordinated by synchronously driven electric telescopic push rods to achieve an automatic correction effect on the wood-plastic board, which can also be adjusted according to the length of the production line.

[0050] The second clamping plate 91 is provided with a first connecting cavity 96 and a second connecting cavity 97 on both sides of the slide groove 95, respectively. The first connecting cavity 96 is movably provided with a connecting component that is adapted to the second connecting cavity 97. When the connecting component of the first connecting cavity 96 and the second connecting cavity 97 are engaged, the two adjacent sets of second clamping plates 91 can be kept on the same straight line. In this way, the length of the correction and limiting structure can be matched and adjusted according to the length of the production line, which can better transport the wood-plastic composite board.

[0051] The connecting assembly includes a first insert plate 9601 slidably connected to a first connecting cavity 96. The end of the first insert plate 9601 extends through the side of the first connecting cavity 96, and the side of the first insert plate 9601 is rack-shaped. A drive gear 9602 rotatably disposed within the first connecting cavity 96 is meshed with the side of the first insert plate 9601. A drive shaft 9603, coaxially connected to the drive gear 9602, extends through the middle of the drive gear 9602. Preferably, the drive shaft 9603 and the drive gear 9602 can be splined, allowing for axial sliding and synchronous rotation during circumferential rotation. The drive shaft 9603 controls the drive gear 9602 to extend the first insert plate 9601 and engage with the second connecting cavity 97.

[0052] To improve stability, a ratchet 9604, a collar 9605, and a locking plate 9606 are also installed on the drive shaft 9603. The collar 9605 is fixedly connected in the first connecting cavity 96. The ratchet 9604 and the locking plate 9606 cooperate to form a one-way locking structure, that is, the end of the locking plate 9606 is inserted at an angle between adjacent teeth on the ratchet 9604, and the inner walls of the locking plate 9606 and the collar 9605 are rotatably connected. A torsion spring is also connected between the two. The torsion spring keeps the locking plate 9606 in an inclined state, which can prevent the drive shaft 9603 from rotating in the opposite direction. After the first insert plate 9601 is pushed out and the second connecting cavity 97 is engaged, the connection can be kept stable. When it is necessary to unlock, the drive shaft 9603 moves upward, which can disengage the ratchet 9604 from the locking plate 9606, thereby allowing it to rotate in the opposite direction and disengage the first insert plate 9601 from the second connecting cavity 97. After disengagement, the drive shaft 9603 can be pressed to restore the unidirectional rotation restriction effect.

[0053] The second connecting cavity 97 is located at the other end of the second clamping plate 91. A mating groove 9701 is provided within the second connecting cavity 97, with the ends of the mating groove 9701 and the first insert plate 9601 positioned opposite each other. A limiting groove 9702 is provided on one side of the mating groove 9701, and a second limiting insert plate 9703 is elastically installed in the limiting groove 9702. A threaded hole is provided in the limiting groove 9702, allowing a long bolt to extend from the second connecting cavity 97 into the limiting groove 9702 and prevent the first insert plate 9603 from being inserted. The second limiting plate 9703 extends into the insertion slot 9701 of the first plate 9601. The first plate 9601 can form a snap-fit ​​engagement with the corresponding second limiting plate 9703, while the second limiting plate 9703 is elastically engaged. As the first plate 9601 is inserted, the second limiting plate 9703 elastically limits the movement. If a long bolt is installed, it can prevent the elastic limiting of the second limiting plate 9703, thus forming a stable limit and improving the stability during assembly.

[0054] This limiting and guiding structure achieves synchronous transmission, linear guidance, and bidirectional limiting between symmetrical plates through the cooperation of the first limiting guide 8 and the second limiting guide 9. The structure has strong linkage and can effectively prevent the plates from shifting or loosening during movement. At the same time, the ratchet self-locking structure ensures the reliability of the limiting state and is suitable for various mechanical scenarios that require symmetrical movement and precise guidance. Example 3

[0055] Multiple sets of second limiting guide members 9 can be configured. Adjacent second limiting guide members 9 can be connected through a first connecting cavity 96, a second connecting cavity 97, and a first insert plate 9601, thereby extending the correction and guidance structure according to the length of the conveyor line. This structure can already achieve lateral limiting and correction guidance during the conveying process of wood-plastic composite boards. However, in longer conveyor lines, if the joint gap, insertion depth, lateral fit gap, and alignment relationship of the guide surface between adjacent second limiting guide members 9 are not further defined after continuous splicing of multiple sets of second limiting guide members 9, problems such as discontinuous guide surfaces, slight jumping at the joint, local abutment of the board side, and cumulative deviation after multiple splicing may occur when the side of the wood-plastic composite board passes through the splicing position of adjacent second limiting guide members 9.

[0056] Especially when the width of the wood-plastic composite board is large, the conveying distance is long, or the edge of the board is slightly curved, a certain lateral force will be generated when the side of the wood-plastic composite board comes into contact with the second belt 93. This lateral force is transmitted through the second belt 93 to the second clamping plate 91, and then to the connection position of the first insert plate 9601 and the insertion groove 9701. If the first insert plate 9601 is inserted too shallowly, the adjacent second clamping plates 91 are prone to slight swaying at the joint; if the gap between the first insert plate 9601 and the insertion groove 9701 is too large, the assembly error is easily amplified into guide surface misalignment; if the gap is too small, it is easy to get stuck during on-site installation and disassembly; if the gap between the ends of the adjacent second belts 93 is too large, the wood-plastic composite board is prone to temporarily lose continuous guidance when passing through the joint. Therefore, this embodiment needs to further limit the proportional relationship and matching relationship between the relevant components without changing the original structure of Embodiment 1, so that the splicing of multiple sets of second limiting guide components 9 can maintain good guiding continuity and anti-deflection stability.

[0057] The second limiting guide member 9 still includes a second clamping plate 91, a second pulley 92, a second belt 93, and a second rotating pin 94. The second clamping plate 91 is still provided with a sliding groove 95, a first connecting cavity 96, and a second connecting cavity 97. The first connecting cavity 96 is still provided with a first insert plate 9601, a drive gear 9602, a drive shaft 9603, a ratchet 9604, a collar 9605, and a retaining plate 9606. The second connecting cavity 97 is still provided with a mating groove 9701, a limiting groove 9702, and a second limiting insert plate 9703. This embodiment does not add any new structural components, but only further defines the dimensional proportions and mating relationships between the existing components.

[0058] After two adjacent sets of second limiting guide members 9 are spliced ​​together along the conveying direction, a transition gap is formed between the ends of two adjacent second belts 93. Let this transition gap be g, and the thickness of the second belt 93 be t93, then g / t93 is 0.10-0.30. This ratio ensures that the necessary clearance space is maintained between adjacent second belts 93 while avoiding excessively long guide interruptions at the joint. When g / t93 is less than 0.10, the ends of adjacent second belts 93 are prone to rubbing against each other due to assembly deviations, running tension, or slight thermal deformation; when g / t93 is greater than 0.30, the continuous guidance of the wood-plastic board side edge when passing through the joint is insufficient, easily resulting in slight edge skipping. Therefore, limiting this ratio within the above range can balance running clearance and guide continuity.

[0059] Adjacent second clamping plates 91 are connected by inserting a first insert plate 9601 into a matching slot 9701 within the adjacent second connecting cavity 97. Let the effective insertion length of the first insert plate 9601 into the matching slot 9701 be li, and the effective length of the second clamping plate 91 along the conveying direction be L91, then li / L91 is 0.20-0.30. This ratio is mainly used to ensure that the adjacent second clamping plates 91 after splicing have sufficient anti-deflection capability. If li / L91 is less than 0.20, the support length of the first insert plate 9601 for the adjacent second clamping plate 91 is insufficient, and slight swaying may easily occur at the joint when the side of the wood-plastic board acts on the second belt 93; if li / L91 is greater than 0.30, the contact length between the first insert plate 9601 and the matching slot 9701 is too long. Although the connection stability increases, the insertion and withdrawal resistance increases, which is not conducive to on-site disassembly and adjustment. Therefore, the above ratio can achieve a balance between splicing stability and smooth disassembly and assembly.

[0060] The first insert plate 9601 and the fitting slot 9701 are fitted with a clearance fit. Let the width of the first insert plate 9601 be b1, and the width of the fitting slot 9701 be b2, then b1 / b2 is 0.94-0.98. When b1 / b2 is less than 0.94, the lateral clearance between the first insert plate 9601 and the fitting slot 9701 is large, which can easily lead to slight misalignment of the adjacent second clamping plate 91 at the joint. When b1 / b2 is greater than 0.98, the fit is too tight, and machining burrs, assembly deviations, or slight wear and deformation after use may cause the first insert plate 9601 to be difficult to insert. Limiting this ratio to between 0.94 and 0.98 allows the first insert plate 9601 to be inserted smoothly while reducing lateral wobbling after splicing.

[0061] After two adjacent sets of second limiting guide members 9 are spliced, the misalignment of the outer guide surface of the adjacent second belt 93 in the width direction is e, and the thickness of the second belt 93 is t93. Then e / t93 is 0-0.12. This ratio is used to control whether a noticeable step is formed at the joint. If e / t93 exceeds 0.12, when the side of the wood-plastic composite board transitions from the first set of second belts 93 to the second set of second belts 93, it is easy to hit the end or side of the second set of second belts 93 first, resulting in local bumping and slight impact. When e / t93 is controlled between 0-0.12, normal assembly errors are allowed, but no noticeable step will be formed, and the side of the wood-plastic composite board can pass through the joint relatively smoothly.

[0062] After two adjacent sets of second clamping plates 91 are spliced ​​together, the included angle α between their outer guide reference edges is 0°-0.6°. This included angle is used to limit the straight-line deviation between adjacent second limiting guide members 9. If α is too large, after multiple sets of second limiting guide members 9 are continuously spliced, the angular error at a single joint will accumulate along the conveying direction, causing the side of the wood-plastic board to be subjected to alternating lateral thrust, thus affecting the long-distance correction stability. Limiting α to between 0° and 0.6° not only conforms to the actual assembly allowable error, but also ensures that multiple sets of second limiting guide members 9 form a relatively continuous straight-line guide edge.

[0063] To improve the smoothness of insertion and withdrawal of the first insert plate 9601, rounded corners are used at the ends of the first insert plate 9601 and the entrance of the mating slot 9701. Let the thickness of the first insert plate 9601 be h1, the radius of the rounded corner at the end of the first insert plate 9601 be r1, and the radius of the rounded corner at the entrance of the mating slot 9701 be r2. Then, r1 / h1 is 0.08-0.18, and r2 / h1 is 0.06-0.15. When the rounded corner ratio is too small, localized scratching may easily occur when the first insert plate 9601 is inserted into the mating slot 9701; when the rounded corner ratio is too large, it will reduce the effective limiting surface at the ends of the first insert plate 9601 and the entrance of the mating slot 9701, affecting the stability after insertion. Therefore, the above-mentioned rounded corner ratio can balance smooth insertion and reliable limiting.

[0064] The technical principle of this embodiment is as follows: when multiple sets of second limiting guide members 9 are spliced ​​together, the key position affecting the stability of the correction is not in the middle of a single second limiting guide member 9, but mainly concentrated at the joint of adjacent second limiting guide members 9. During the conveying process, the side of the wood-plastic composite board moves along the outer guide surface of the second belt 93. When it passes the joint, if the joint gap is too large, the guide surface misalignment is too large, or the connection between adjacent second clamping plates 91 is unstable, the contact state of the board side will change from continuous contact to intermittent contact, resulting in jumping, pushing, or lateral swaying. This embodiment, by limiting g / t93 and e / t93, makes the adjacent second belts 93 form a more continuous guide transition surface at the joint, reducing the abrupt contact change when the side of the wood-plastic composite board passes through the joint.

[0065] Simultaneously, the lateral force generated when the side of the wood-plastic composite board contacts the second belt 93 will cause the adjacent second clamping plates 91 to tend to deflect relative to each other at the splice. After the first insert plate 9601 is inserted into the insertion slot 9701, it is equivalent to forming an insertion support between the adjacent second clamping plates 91. The shorter the effective insertion length of the first insert plate 9601, the weaker the anti-deflection ability at the joint; the longer the effective insertion length, the stronger the anti-deflection ability, but the insertion and withdrawal resistance will also increase. In this embodiment, li / L91 is limited to 0.20-0.30, so that the first insert plate 9601 can provide sufficient support for the adjacent second clamping plates 91 without affecting disassembly and maintenance due to excessive contact length.

[0066] The width fit between the first insert plate 9601 and the mating slot 9701 is used to control the lateral clearance at the insertion point. If b1 / b2 is too small, the first insert plate 9601 will wobble within the mating slot 9701, affecting the straightness of the joint; if b1 / b2 is too large, the insertion resistance will increase, reducing the tolerance for errors in on-site assembly. Therefore, limiting b1 / b2 to 0.94-0.98 can balance smooth insertion and lateral positioning stability. Proportional rounded corners at the ends of the first insert plate 9601 and the entrance of the mating slot 9701 reduce scratching and abutment during initial insertion, making it easier for the first insert plate 9601 to enter the mating slot 9701 under the action of the drive gear 9602, and allowing it to exit smoothly when disassembly is required.

[0067] In actual operation, after the first insert plate 9601 extends into the insertion slot 9701, the ratchet 9604 and the locking plate 9606 cooperate to form a one-way lock on the drive shaft 9603, keeping the first insert plate 9601 in the inserted state. Since the insertion length, width, and rounded corner transition of the first insert plate 9601 are proportionally limited, the adjacent second clamping plates 91 in this locked state are less prone to lateral wobbling, and there is no difficulty in releasing due to excessive tightness. When the wood-plastic composite board passes through the joint, the end gap and lateral misalignment between the first and second sets of belts 93 are small, resulting in a smoother guiding transition, thereby reducing the risk of side jump of the board, wear at the joint, and cumulative deviation.

[0068] Therefore, this embodiment is not a simple lengthening of the second limiting guide 9, nor is it merely an increase in the strength of a single connector. Instead, based on the original structure, it coordinates and limits the end gap, insertion length, width matching, guide surface misalignment, splicing angle, and fillet ratio to ensure the continuity of the joints after multiple sets of second limiting guides 9 are spliced. The end gap and guide surface misalignment mainly address the issue of continuous guidance when the wood-plastic composite board passes through the joint; the insertion length and width matching mainly address the issue of splicing stability of adjacent second clamping plates 91; the splicing angle mainly addresses the issue of cumulative straight-line deviation after multiple continuous arrangements; and the fillet ratio mainly addresses the issues of scraping, bumping, and jamming during insertion and withdrawal. The combined effect of these ratios enables multiple sets of second limiting guides 9 to maintain a good continuous guiding effect in long conveyor lines, improving the stability and reliability of wood-plastic composite board conveying and correction.

Claims

1. An automatic alignment device for a wood-plastic composite board conveyor line, comprising a base frame, on which drive rollers and driven rollers are symmetrically arranged on both sides, and a conveyor belt is sleeved around the drive rollers and the driven rollers, characterized in that, The base frame is connected to a support frame and symmetrically arranged baffles on both sides of the conveyor belt. One end of the driven roller is provided with a movable support frame. A first limiting guide is symmetrically and rotatably connected to the opposite side of the baffle. One end of the first limiting guide is rotatably connected to the baffle, and the other end is rotatably connected to a second limiting guide. Multiple sets of second limiting guides are provided. A first connecting cavity and a second connecting cavity are respectively connected to both sides of the second limiting guide. A connecting component corresponding to and adapted to the second connecting cavity is movably arranged in the first connecting cavity.

2. The automatic deviation correction device for a wood-plastic composite board conveyor line according to claim 1, characterized in that, Both the drive roller and the driven roller are mounted on the base frame; the drive roller is located at one end of the base frame, the drive roller includes a drive shaft and a drive motor, the driven roller includes a rotating shaft and a rotating drum, and the output end of the drive motor is connected to the drive shaft for transmission.

3. The automatic deviation correction device for a wood-plastic composite board conveyor line according to claim 1, characterized in that, The driven roller is located at the other end of the base frame. The driven roller includes a rotating shaft and a rotating drum, and the rotating drum is fixedly connected to the rotating shaft. The conveyor belt is wrapped and tensioned between the drive roller and the driven roller.

4. The automatic deviation correction device for a wood-plastic composite board conveyor line according to claim 1, characterized in that, The support frame is arranged at intervals on the base frame along the conveying direction of the conveyor belt. The support frame includes a first crossbeam, a first support connecting plate and a first support roller. The first crossbeam is fixedly installed on the base frame, the first support connecting plate is fixedly connected to the first crossbeam, and the first support roller is rotatably installed on the first support connecting plate. The top of the first support roller abuts against the lower surface of the conveyor belt.

5. The automatic deviation correction device for a wood-plastic composite board conveyor line according to claim 4, characterized in that, The movable support frame includes a second crossbeam, a support plate, a second support roller, and a second support connecting plate. The second crossbeam is fixedly installed on the base frame, the support plate is fixedly installed on the second crossbeam, the second support connecting plate is fixedly connected to the support plate, and the second support roller is rotatably installed on the second support connecting plate, with the second support roller abutting against the lower surface of the conveyor belt.

6. An automatic deviation correction device for a wood-plastic composite board conveyor line according to any one of claims 1-5, characterized in that, The first limiting guide includes a first clamping plate, a first pulley, a first belt, a first rotating pin, and a rotating connecting member. The first pulley is rotatably mounted on both ends of the first clamping plate, the first belt is wrapped around the first pulleys at both ends, and the first rotating pin is installed at the central axis position of the first pulley.

7. The automatic deviation correction device for a wood-plastic composite board conveyor line according to claim 6, characterized in that, The rotating connector includes a washer, axle, and a drive belt; two sets of washer are symmetrically arranged, one side of the washer is rotatably connected to the first clamping plate, two axles are symmetrically rotatably connected between the two sets of washer, the axles are coaxially connected to the first rotating pin, and a drive belt is sleeved around the axles.

8. The automatic deviation correction device for a wood-plastic composite board conveyor line according to claim 7, characterized in that, The second limiting guide includes a second clamping plate, a second pulley, a second belt, and a second rotating pin. The second clamping plate is rotatably mounted with second pulleys at both ends, and the second belt is wrapped around the second pulleys at both ends. The second rotating pin is rotatably connected to the washer.

9. An automatic deviation correction device for a wood-plastic composite board conveyor line according to claim 8, characterized in that, The second clamping plate is fixedly provided with a sliding groove on the side near the baffle, and a slider is slidably fitted in the sliding groove.

10. An automatic deviation correction device for a wood-plastic composite board conveyor line according to claim 9, characterized in that, The connecting assembly includes a first insert plate that is slidably connected in a first connecting cavity. The end of the first insert plate extends through the side of the first connecting cavity, and the side of the first insert plate is rack-shaped. A drive gear that is rotatably disposed in the first connecting cavity is meshed with the side of the first insert plate. A drive shaft that is coaxially connected to the drive gear is disposed through the middle of the drive gear.

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