A polyurethane fiberboard bonding processing device

Abstract

The application relates to the technical field of plate processing, in particular to a polyurethane fiberboard bonding processing device, which comprises a conveying roller group arranged on a rack and used for conveying a plate, side edge extrusion mechanisms arranged on the rack and symmetrically provided with two groups, a rotating frame rotatably connected to the rack, a plurality of side edge extrusion rollers arranged along the circumference of the rotating frame, and a driving assembly arranged on the rack and used for driving the rotating frame to rotate. The application reduces the vertical height through side edge extrusion, facilitates extrusion, improves the bonding strength through side edge extrusion, improves the operation convenience, and reduces the influence on product quality and production efficiency.

Description

Technical Field

[0001] This application relates to the technical field of sheet material processing, and in particular to a bonding processing apparatus for polyurethane fiberboard. Background Technology

[0002] Polyurethane fiberboard is widely used in building decoration, furniture manufacturing, transportation, and other fields due to its excellent properties such as lightweight, high strength, and thermal and sound insulation. In practical applications, it is often necessary to splice multiple boards or seal the edges of the boards to improve the stability and aesthetics of the overall structure. Traditional bonding methods mostly involve manual application of glue followed by pressing, which is inefficient, produces inconsistent quality, and requires highly skilled operators.

[0003] In the prior art, hot press bonding machines have been used for bonding processing of boards. For example, the hot press bonding machine described in Chinese patent CN205219789U includes a machine body, an upper pressure plate, a lower pressure plate, a hydraulic cylinder, and a heating device. It achieves the bonding of materials through hot pressing. Although this equipment can achieve a certain degree of automation, its structure is mainly designed for the overall pressing of planar or cylindrical materials. It is not very adaptable to the edge sealing treatment of the board side, especially when bonding the side of lightweight materials such as polyurethane fiberboard, it is difficult to achieve uniform pressure and precise positioning.

[0004] Existing hot press bonding machines have significant drawbacks when used for edge sealing of polyurethane fiberboard: because their pressing method is planar vertical pressing, they cannot effectively and continuously squeeze the side of the board, resulting in weak adhesion between the edge sealing strip and the side of the board, easy warping or tilting, inconvenient operation, and impact on production efficiency and product quality. Utility Model Content

[0005] This application provides a bonding and processing apparatus for polyurethane fiberboard, which can at least partially solve the above-mentioned technical problems.

[0006] This application provides a bonding and processing apparatus for polyurethane fiberboard, which adopts the following technical solution: An adhesive bonding processing apparatus for polyurethane fiberboard, comprising: Conveyor roller assembly, mounted on the frame, is used to convey sheet metal; The side extrusion mechanism is mounted on the frame and has two sets arranged symmetrically. It includes a rotating frame rotatably connected to the frame, multiple side extrusion rollers arranged circumferentially along the rotating frame, and a drive assembly mounted on the frame for driving the rotating frame to rotate.

[0007] By adopting the above technical solution, the operator places the polyurethane fiberboard with the edge banding onto the conveyor roller assembly. The conveyor roller assembly starts and conveys the board forward at a uniform speed. When the board passes the side extrusion mechanism, the drive component (such as a motor) starts, driving the rotating frame and its multiple circumferentially arranged side extrusion rollers to rotate together. The rotating extrusion rollers simultaneously roll over both sides of the board. During the conveying process, both sides of the board are processed by continuous, rotating extrusion action.

[0008] By replacing the traditional vertical flat pressure with rotating extrusion rollers, dynamic, linear, and continuous rolling pressure is achieved on the sides of the sheet material, ensuring uniform and continuous pressure application and greatly improving the strength and consistency of the edge sealing. The conveyor roller group enables automatic feeding, which, combined with the rotary extrusion, forms a continuous assembly line operation. Compared with manual or intermittent pressing, it is faster and more efficient. The two symmetrically arranged mechanisms can process two sides of the sheet material simultaneously, completing the processing in one go. Moreover, by using side extrusion, the vertical height is reduced, making extrusion easier. Side extrusion also improves bonding strength, enhances operational convenience, and reduces the impact on product quality and production efficiency.

[0009] Optionally, baffles are provided at both ends of the side extrusion roller, and the baffles and the side extrusion roller form an extrusion groove.

[0010] By adopting the above technical solution, the baffles at both ends of the side extrusion roller and the roller itself together form a "U"-shaped extrusion groove. When the sheet is conveyed through, its side is precisely embedded in this groove. The groove structure can wrap around the side and part of the upper and lower surfaces of the sheet, ensuring that the sheet will not move up and down or shift left and right during the extrusion process, thus guaranteeing processing accuracy. When performing edge sealing operations, the excess adhesive squeezed out by the edge sealing strip and the side of the sheet will be confined in the groove, rather than flowing to the shaft end of the extrusion roller or the frame, greatly reducing the workload of equipment cleaning and maintenance.

[0011] Optionally, the baffle slides along the length of the side extrusion roller on the side extrusion roller, and an adjustment mechanism is provided on the rotating frame, the adjustment mechanism being connected to the baffle.

[0012] By adopting the above technical solution, when processing sheets of different thicknesses, the operator can move the baffles using an adjustment mechanism. The baffles slide along the length direction (i.e., axial direction) of the side extrusion rollers, thereby changing the distance between the two baffles, which adjusts the width of the extrusion groove to accommodate the thickness of the new sheet material. This significantly improves the versatility and applicability of the equipment, allowing one set of equipment to process various sheet materials of different thicknesses without changing molds or components, reducing equipment costs and changeover time. It also enables rapid adjustment, meeting the needs of flexible production.

[0013] Optionally, the adjustment mechanism includes a bidirectional lead screw, a slider, and an adjustment head. The bidirectional lead screw is rotatably connected to the frame, and both ends of the bidirectional lead screw are threaded to the slider. The slider is connected to the baffle, and the adjustment head is disposed at one end of the bidirectional lead screw.

[0014] By adopting the above technical solution, the operator uses tools or manually rotates the adjusting head to drive the bidirectional lead screw to rotate. The two sliders on the bidirectional lead screw then move synchronously, in opposite directions or in opposite linear motions, thereby causing the left and right baffles connected to the sliders to move closer or further away synchronously. The bidirectional lead screw structure ensures that the two baffles always move symmetrically with the center line of the lead screw as the reference, ensuring that the center line of the extrusion groove is always aligned with the center line of the conveying, avoiding problems such as one-sided extrusion or uneven pressure caused by improper adjustment. The lead screw thread pair has a certain degree of self-locking, which can keep the baffle position stable when the adjusting head is rotated without external force, preventing changes in the groove width due to vibration or other reasons during the extrusion process.

[0015] Optionally, the adjusting mechanism further includes a locking nut and a locking rod. The locking nut is threaded to one end of the bidirectional lead screw, and the locking rod slides on the locking nut. A corresponding insertion slot is provided on the frame, and the locking rod is inserted into and engaged with the insertion slot.

[0016] By adopting the above technical solution, after adjustment, the operator tightens the locking nut to make it fit snugly against the machine frame. Then, the locking rod is pushed to insert into the slot on the machine frame. At this point, the bidirectional lead screw is completely locked and cannot rotate. Based on the lead screw's self-locking mechanism, a mechanical locking device is added, completely eliminating the risk of slight rotation of the lead screw under high-speed, long-term, and high-load working conditions, ensuring the absolute stability of process parameters (groove width) in mass production. The locking rod directly locks the adjustment mechanism to the robust machine frame, reducing the impact of extrusion vibration on the adjustment mechanism.

[0017] Optionally, a scraper is provided on one side of the frame, and the scraper is located in front of the side extrusion roller in the direction of rotation.

[0018] By adopting the above technical solutions, the contaminants on the roller surface can be removed in a timely manner, preventing them from accumulating and transferring to the edge sealing surface of subsequent boards, causing pollution or forming pits, and ensuring that the edge sealing surface of each extrusion is smooth and beautiful; automated cleaning reduces the frequency of manual downtime for cleaning and improves the overall utilization rate of the equipment.

[0019] Optionally, the scraper end is provided with a groove, a telescopic plate is slidably connected in the groove, a spring is provided in the groove, and the spring is connected to the telescopic plate.

[0020] By adopting the above technical solution, the scraper will wear out during use. When it wears out, the telescopic plate will automatically extend from the groove under the thrust of the spring to compensate for the length of the scraper and continue to ensure effective contact with the surface of the extrusion roller. When replacement is needed, the telescopic plate can be manually pressed back into the groove for replacement. It can also adapt to grooves of different widths. This structure significantly extends the total effective service life of the scraper, reduces the frequency and cost of spare parts replacement, and ensures that the decline in cleaning effect caused by wear is reduced throughout the entire scraper life.

[0021] Optionally, guide blocks are spaced apart on the two baffles, and each guide block has a guide surface. The scraper rotates on the frame, and rotates when its end contacts the guide surface until it contacts the other guide surface, at which point the scraper rotates in the opposite direction.

[0022] By adopting the above technical solution, when the rotating frame drives the extrusion roller and the baffle to rotate, the guide block on the baffle rotates accordingly. When the guide surface of the first guide block contacts the end of the scraper, it will push the scraper to overcome resistance (such as torsion spring force) and rotate, letting the guide block and the baffle pass. After the guide block has rotated, the scraper returns to its original position under the action of elasticity; then, the next guide block contacts it again, repeating the above process. The oscillating design of the scraper gives it a "yielding" and "resetting" action at the moment of contact with the guide surface. This micro-movement is sometimes more effective in scraping away stubborn stains, and the cleaning effect may be better than that of a completely fixed scraper.

[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. The two symmetrically arranged mechanisms can process both sides of the board simultaneously, completing the processing in one go; and by using side extrusion, the vertical height is reduced, making extrusion easier, improving bonding strength, enhancing operational convenience, and reducing the impact on product quality and production efficiency. 2. It can promptly remove dirt from the roller surface, preventing it from accumulating and transferring to the edge sealing surface of subsequent boards, causing pollution or pitting, and ensuring that the edge sealing surface of each extrusion is smooth and beautiful; automated cleaning reduces the frequency of manual downtime for cleaning and improves the overall utilization rate of the equipment; 3. The oscillating design of the scraper allows it to "yield" and "reset" at the moment of contact with the guide surface. This micro-movement is sometimes more effective in removing stubborn stains and may result in a better cleaning effect than a completely fixed scraper. Attached Figure Description

[0024] Figure 1 This is an overall structural diagram of the processing device in the embodiments of this application; Figure 2 This is a detailed structural diagram of the side extrusion mechanism in the embodiments of this application; Figure 3This is a diagram illustrating the adjustment mechanism in an embodiment of this application; Figure 4 This is a diagram showing the relative positions of the guide block and the scraper in an embodiment of this application; Figure 5 This is a cross-sectional view of the scraper in an embodiment of this application.

[0025] Reference numerals: 100, conveyor roller group; 200, frame; 300, side extrusion mechanism; 310, rotating frame; 320, side extrusion roller; 330, baffle; 331, extrusion groove; 400, adjusting mechanism; 410, bidirectional lead screw; 420, slider; 430, adjusting head; 440, locking nut; 450, locking rod; 500, scraper; 510, telescopic plate; 520, reset component; 530, chute; 540, guide block; 541, guide surface; 550, connecting rod. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0027] Reference Figure 1 This embodiment provides a bonding and processing device for polyurethane fiberboard, mainly used to solve the problem that existing hot pressing equipment is difficult to perform efficient and high-quality continuous edge sealing and bonding on the sides of the board. The core of this device is to achieve dynamic and uniform rolling of the sides of the board through a rotatable side extrusion mechanism 300 in conjunction with an automatic conveying system. When performing side rolling bonding, after splicing and bonding, glue needs to be applied to the sides of the composite fiberboard, then the side strip is pasted, and then it is conveyed to the bonding and processing device for side extrusion.

[0028] The bonding and processing device for polyurethane fiberboard mainly includes a frame 200, a conveyor roller group 100 mounted on the frame 200 for conveying the board, and two sets of side extrusion mechanisms 300 symmetrically arranged on both sides of the conveyor roller group 100. The side extrusion mechanism 300 drives multiple circumferentially distributed extrusion rollers to rotate through a rotating frame 310, thereby continuously extruding and bonding the sides of the board that passes at a uniform speed.

[0029] The following will provide a detailed description of the various components of this embodiment and their connection relationships: The frame 200, serving as the main support for the entire device, has a rectangular frame structure welded from structural steel, providing sufficient rigidity and stability. Several conveyor rollers are evenly mounted on the upper surface of the frame 200 via bearing seats, forming the conveyor roller group 100. The axes of the conveyor rollers are perpendicular to the conveying direction of the sheet material and are connected to a drive motor fixed to the side of the frame 200 via a chain drive mechanism, enabling synchronous rotation and providing stable conveying power for the sheet material.

[0030] Reference Figure 2 and Figure 3 On both sides of the conveying roller group 100, i.e., on the two side beams along the length of the frame 200, two sets of side extrusion mechanisms 300 are symmetrically installed. The core of this mechanism is a rotating frame 310, which is rotatably connected to the side beam of the frame 200 via a central rotating shaft. The rotating frame 310 has a disc-shaped or spoke-shaped structure, and its disc surface is perpendicular to the conveying direction. On the circumferential edge of the rotating frame 310, multiple side extrusion rollers 320 are evenly hinged along the circumference. The extrusion rollers have an arc-shaped ring structure and are short sections. The axes of these extrusion rollers are all parallel to the central rotating shaft of the rotating frame 310. The central rotating shaft of the rotating frame 310 is connected to a servo motor through a set of drive components (such as a worm gear reducer or gear set), so that it can be driven by the servo motor to rotate at a uniform speed, causing all the side extrusion rollers 320 in the circumferential direction to revolve accordingly. In this embodiment, a drive motor is selected, and the output shaft of the drive motor is connected to the output shaft of the rotating frame 310 through a coupling.

[0031] Furthermore, a semi-circular baffle 330 is fixedly installed at both ends of each side extrusion roller 320, and multiple baffles 330 are fixedly connected by a connecting rod 550. The diameter of the baffle 330 is slightly larger than the installation diameter of the extrusion roller, so that the baffle 330, the roller surface of the extrusion roller, and the space between the two baffles 330 together form an extrusion groove 331 with a "U" shaped cross-section, which is used to accommodate and limit the side edge and edge banding of the sheet material during operation.

[0032] To accommodate plates of different thicknesses, the baffle 330 is not directly fixed to the extrusion roller, but is slidably connected to the roller shaft along the axial direction (i.e., its length direction) of the side extrusion roller 320 via a sliding sleeve structure. In order to synchronously drive the two baffles 330 to move in opposite directions to adjust the groove width, an adjustment mechanism 400 is also provided on the rotating frame 310. The adjustment mechanism 400 includes a bidirectional lead screw 410, which is rotatably connected to one side of the rotating frame 310 via a bearing seat, and its axis is parallel to the axis of the side extrusion roller 320. The two ends of the bidirectional lead screw 410 are machined with threads of opposite directions, and each is fitted with a slider 420 that is threadedly engaged with it. The two sliders 420 are fixedly connected to the corresponding side baffles 330 via a connecting rod 550; an adjustment head 430 (such as a handwheel or hexagonal head) is fixedly installed at one end of the bidirectional lead screw 410 extending from the rotating frame 310, so that the operator can use tools to rotate and adjust; rotating the adjustment head 430 can make the bidirectional lead screw 410 rotate, driving the two sliders 420 to move closer or further away synchronously, thereby driving the two baffles 330 to precisely adjust the width of the extrusion groove 331.

[0033] To ensure that the groove width remains constant under working vibration after adjustment, the adjustment mechanism 400 is also equipped with a locking mechanism. This mechanism includes a locking nut 440 and a locking rod 450. The locking nut 440 is threaded to the end of the double-acting screw 410, adjacent to the adjustment head 430. The locking nut 440 has multiple radial holes, which are evenly spaced along the circumference of the double-acting screw 410. The locking rod 450 slides axially through one of the radial holes of the locking nut 440. A insertion slot is precisely machined on the corresponding side beam of the frame 200. After the groove width is adjusted, the operator first tightens the locking nut 440 so that its end face is pressed against the side beam of the frame 200, generating a preload. Then, the operator pushes the locking rod 450 so that its end is inserted into the insertion slot on the frame 200. In this way, the double-acting screw 410 is completely locked and cannot be rotated, effectively preventing accidental loosening due to vibration.

[0034] Reference Figure 3 , Figure 4 and Figure 5 To ensure the cleanliness of the extrusion roller surface and prevent adhesive residue from affecting product quality, a scraper 500 is fixedly installed on the frame 200 near the side extrusion mechanism 300. This scraper 500 is made of elastic metal or wear-resistant plastic, and its installation position is located in front of the tangential direction of the orbital trajectory of the side extrusion roller 320, allowing the cutting edge of the scraper 500 to continuously scrape across the surface of each passing extrusion roller, removing any residual adhesive residue.

[0035] Considering the wear of the scraper 500, this embodiment features an optimized design for the scraper 500. Specifically, a groove 530 is provided at the end of the scraper 500, and a telescopic plate 510 is slidably connected within this groove 530. A spring is placed at the bottom of the groove 530, with its other end connected to the telescopic plate 510, continuously providing the telescopic plate 510 with elastic force extending towards the extrusion roller. This structure can automatically compensate for the length after the scraper 500 body wears down, maintaining effective scraping contact.

[0036] Furthermore, to address the motion interference between the fixedly installed scraper 500 and the rotating baffle 330, guide blocks 540 are fixed at intervals on the connecting rods 550 connecting adjacent scrapers 500, with the guide blocks 540 on the connecting rods 550 being staggered at intervals. The guide blocks 540 have inclined guide surfaces 541 machined on them. Correspondingly, the scraper 500 is not completely fixed, but is rotatably connected to the frame 200 via a hinge seat, and can swing within a certain angle around the hinge point. A torsion spring (not shown in the figure) is provided behind it to provide a return force, ensuring that the scraper 500 is in a vertical state. When the rotating frame 310 rotates, causing the baffle 330 and its guide block 540 to approach the scraper 500, the guide surface 541 of the guide block 540 will first contact the end of the scraper 500, and the inclined surface will force the scraper 500 to overcome the torsion spring force and rotate outward and lift. After the guide block 540 has completely rotated, the scraper 500 will quickly swing back to its original position under the action of the torsion spring and continue to perform the scraping function. This process repeats continuously, realizing dynamic avoidance and continuous cleaning.

[0037] In operation, the operator first rotates the adjusting head 430 according to the thickness of the polyurethane fiberboard to be processed. The width of all extrusion grooves 331 on both sides of the extrusion mechanism is precisely adjusted via the bidirectional lead screw 410 and slider 420 mechanism, and then firmly locked using the locking nut 440 and locking rod 450. The equipment is then started, and the conveying roller group 100 feeds the board at a uniform speed. Simultaneously, the servo motors on both sides drive the rotating frame 310 to rotate the extrusion rollers at a uniform speed. The sides of the board are continuously rolled during conveying, with uniform and continuous pressure. Excess adhesive is confined within the grooves, while adhesive residue adhering to the surface of the extrusion rollers is promptly scraped off by the dynamically operating scraper 500 at the rear.

[0038] This device completely solves the problems of uneven side sealing pressure and weak adhesion by replacing vertical flat pressure with rotary rolling, greatly improving the quality and consistency of edge sealing. The adjustable extrusion groove 331 allows one machine to adapt to various thicknesses of sheet metal, offering strong versatility and reducing equipment investment and changeover time. The combination of a bidirectional lead screw 410 and mechanical locking ensures adjustment accuracy and extreme reliability. The automatically compensated scraper 500, combined with a clever avoidance mechanism, ensures efficient self-cleaning while solving motion interference problems, guaranteeing continuous and stable operation of the equipment, significantly improving production efficiency and product quality, and reducing labor costs and maintenance intensity.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bonding and processing apparatus for polyurethane fiberboard, characterized in that: include: A conveyor roller assembly (100) is mounted on a frame (200) and is used to convey sheet metal. The side extrusion mechanism (300) is disposed on the frame (200) and there are two sets symmetrically arranged. It includes a rotating frame (310) rotatably connected to the frame (200), a plurality of side extrusion rollers (320) arranged circumferentially along the rotating frame (310), and a drive assembly disposed on the frame (200) for driving the rotating frame (310) to rotate.

2. The polyurethane fiber sheet bonding processing apparatus according to claim 1, characterized by: Both ends of the side extrusion roller (320) are provided with baffles (330), and the baffles (330) and the side extrusion roller (320) form an extrusion groove (331).

3. The polyurethane fiber sheet bonding processing apparatus according to claim 2, characterized by: The baffle (330) slides along the length of the side extrusion roller (320) on the side extrusion roller (320), and the rotating frame (310) is provided with an adjustment mechanism (400), which is connected to the baffle (330).

4. The polyurethane fiber sheet bonding processing apparatus according to claim 3, characterized by: The adjustment mechanism (400) includes a bidirectional lead screw (410), a slider (420), and an adjustment head (430). The bidirectional lead screw (410) is rotatably connected to the frame (200). Both ends of the bidirectional lead screw (410) are threaded to the slider (420). The slider (420) is connected to the baffle (330). The adjustment head (430) is located at one end of the bidirectional lead screw (410).

5. The polyurethane fiber sheet bonding processing apparatus according to claim 4, characterized by: The adjusting mechanism (400) further includes a locking nut (440) and a locking rod (450). The locking nut (440) is threaded to one end of the bidirectional lead screw (410). The locking rod (450) slides on the locking nut (440). A corresponding insertion slot is provided on the frame (200). The locking rod (450) is inserted into and cooperates with the insertion slot.

6. The polyurethane fiber sheet bonding processing apparatus according to claim 4, wherein: A scraper (500) is provided on one side of the frame (200), and the scraper (500) is located in front of the side extrusion roller (320) in the direction of rotation.

7. The polyurethane fiber sheet binding processing apparatus according to claim 6, wherein: The scraper (500) has a groove (530) at its end, and a telescopic plate (510) is slidably connected in the groove (530). A reset member (520) is provided in the groove (530), and the reset member (520) is connected to the telescopic plate (510).

8. The polyurethane fiber sheet bonding processing apparatus according to claim 6 or 7, characterized by: Guide blocks (540) are spaced apart on the two baffles (330). The guide blocks (540) have guide surfaces (541). The scraper (500) rotates on the frame (200). When the end of the scraper (500) contacts the guide surface (541), it rotates until it contacts the other guide surface (541), at which point the scraper (500) rotates in the opposite direction.

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