Large scale multi-functional continuous polyurethane elastic mat production device

Abstract

The utility model provides a large -scale multifunctional continuous polyurethane elastic pad production device, and the gap of adjustable height between upper caterpillar and lower caterpillar installed on the frame through lifting mechanism has the interval of accommodating foaming material in double caterpillar laminator, and the right end of upper caterpillar and lower caterpillar in double caterpillar laminator all stretches out heating incubator setting, and foaming material is filled into cavity through material receiving part, and the left side of heating incubator is equipped with water -jet cutting system, and the foaming elastic pad continuously formed in the left end discharge part of double caterpillar laminator enters water -jet cutting system through the discharge port on the left side wall of heating incubator, and is cut into the elastic pad of indefinite length by water -jet cutting system on line, the utility model provides sufficient temperature for foaming material to facilitate full foaming, and completes continuously formed self -cleaning skin foaming elastic pad, solves the drawback that traditional polyurethane sleeper pad and polyurethane elastic pad cannot be realized large -scale continuous production, and improves polyurethane damping pad production efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of elastic pad production equipment, specifically relating to a large-scale, multi-functional, continuous polyurethane elastic pad production device. Background Technology

[0002] Currently, the continuous polyurethane foaming equipment used for polyurethane sleeper pads and polyurethane elastic pads involves continuously pouring the mixed polyurethane materials into the casting mold cavity of the sleeper pads or elastic pads, rather than the large-scale continuous casting double-track laminator production equipment used for polyurethane vibration damping pads. The casting molds for sleeper pads and elastic pads are limited to single-piece, single-mold production, making large-scale continuous production of polyurethane sleeper pads and polyurethane elastic pads impossible. This results in low production efficiency and poor product consistency for polyurethane vibration damping pads. While patent number 201520698946.X, entitled "Continuous Self-Skinning Foaming Vibration Damping Pad Production Device," can achieve continuous production of elastic pads and improve production efficiency, continuous production of foamed vibration damping pads requires manual cutting, which is costly, time-consuming, and labor-intensive. Therefore, improvements are necessary to address these issues. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a large-scale, multi-functional, continuous polyurethane elastic pad production device. A double-track laminator with its right end extending out of the heating and insulation chamber provides sufficient temperature for the foaming material to fully foam. The gap between the height-adjustable upper and lower tracks of the double-track laminator, which accommodates the foaming material, and a stop mechanism on the frame of the double-track laminator located on the long sides of the upper and lower tracks, for adjusting the width of the elastic pad, form the cavity required for casting. This allows the casting mechanism to inject the foaming material into the cavity, where it undergoes leveling, foaming, and curing processes, and is output from the discharge end of the double-track laminator, thus continuously forming a self-cleaning foamed elastic pad. This solves the drawback of traditional methods that cannot achieve large-scale continuous production of polyurethane sleeper pads and polyurethane elastic pads, improving the production efficiency and product consistency of polyurethane vibration damping pads.

[0004] The technical solution adopted in this utility model is: a large-scale, multi-functional, continuous polyurethane elastic pad production device, including a heating and insulation box, a double-track laminator installed inside the heating and insulation box, and a casting mechanism located on the outer right side of the heating and insulation box. In the double-track laminator, the upper and lower tracks, which are height-adjustable and mounted on the frame via a lifting mechanism, have a gap between them capable of accommodating foaming material. This gap, together with a stop mechanism for adjusting the width of the elastic pad, located on the long side of the upper and lower tracks on the frame of the double-track laminator, forms the cavity required for casting. In the tracked laminator, the right ends of both the upper and lower tracks extend outwards from the heating and insulation box. The right end of the lower track, which is longer than the upper track, extends outwards to form a receiving section. The discharge port of the casting mechanism points to the receiving section at the right end of the double tracked laminator and fills the cavity with foamed material through the receiving section. A water jet cutting system is provided on the left side of the heating and insulation box. The continuously formed foamed elastic pads at the discharge section at the left end of the double tracked laminator enter the water jet cutting system through the discharge port on the left side wall of the heating and insulation box and are cut into elastic pads of varying lengths online by the water jet cutting system.

[0005] The heating and insulation box is equipped with a palletizer on the left side outside, and the water jet cutting system is located at the rear of the palletizer on the left side. A turnover cart is located in front of the water jet cutting system on the front side of the palletizer.

[0006] Furthermore, the waterjet cutting system includes a waterjet cutter and a roller conveyor. The roller conveyor is located outside the left side of the heating and insulation box, and the feed end of the right end of the roller conveyor corresponds to the discharge port of the left end of the heating and insulation box. The waterjet cutter is arranged across the right end of the roller conveyor, and the waterjet of the waterjet cutter is located above the roller conveyor. The part of the roller conveyor located on the left side of the waterjet cutter extends into the rear side of the palletizer.

[0007] Furthermore, it also includes a release paper unwinding and rewinding device, which includes a release paper unwinding frame located on the outside of the right side of the dual-track laminator and a release paper rewinding frame located between the heating and insulation box and the water jet cutting system. The release paper unwinding from the release paper unwinding frame contacts the lower track in the dual-track laminator, and enters and exits the cavity along with the foaming material before being rewound by the release paper rewinding frame.

[0008] Furthermore, it also includes a reinforcing layer unwinding frame located at the top right end of the heating and insulation box. The geotextile on the reinforcing layer unwinding frame is wound onto the bottom surface of the upper track of the double track laminator. The reinforcing layer enters the cavity together with the foaming material and is bonded to the foaming material during the molding process to form an elastic pad with anti-puncture and anti-tear functions.

[0009] Furthermore, the reinforcing layer unwound on the reinforcing layer unwinding frame is geotextile, adhesive mesh, or textured fabric.

[0010] Furthermore, the casting mechanism includes a sweeping frame and a feeder. The sweeping frame is located on the outer side of the right end of the lower track of the double-track laminator, and the feeder, which is connected to the foaming machine, is installed on the sweeping frame through a swinging device. The feeder is driven by the swinging device to move back and forth along the sweeping frame to fill the cavity with foaming material.

[0011] Furthermore, the stop mechanism includes multiple stops distributed along the length of the double-tracked laminator frame and evenly distributed between the two long sides of the upper and lower tracks. Multiple electric slides are evenly distributed on the long side of the double-tracked laminator frame, and the stops are detachably fixed to the sliding seats of the electric slides. The stops corresponding to the width are replaced according to the width of the elastic pad to be produced. The width of the cavity formed by the upper and lower tracks of the double-tracked laminator and the stops on both sides between them is adjusted by the movement of the sliding seats driven by the electric slides.

[0012] Advantages of this utility model compared to the prior art:

[0013] 1. This technical solution provides sufficient temperature for the foaming material to fully foam by setting up a double-track laminator with the right end extending out of the box inside the heating and insulation box, thus providing conditions for improving the production quality of polyurethane elastic pads.

[0014] 2. In this technical solution, the gap between the height-adjustable upper and lower tracks of the dual-track laminator, which can accommodate foamed material, and the stop mechanism located on the long side of the upper and lower tracks on the frame of the dual-track laminator for adjusting the width of the elastic pad, form the cavity required for casting. This allows the casting mechanism to inject the foamed material into the cavity, which undergoes processes such as leveling, foaming, and curing, and is output from the discharge end of the dual-track laminator, thus continuously forming a self-cleaning foamed elastic pad. The thickness, width, and density of the elastic pad can all be adjusted to meet the production needs of different specifications of the elastic pad.

[0015] 3. This technical solution facilitates the cutting and transfer of the elastic padding layer by installing a roller conveyor, a palletizer, and a turnover cart on the outside of the left side of the heating and insulation box. The elastic padding layer is simultaneously transferred off the production line to the secondary curing area for storage, realizing continuous production and processing of the elastic padding layer with high structural space utilization.

[0016] 4. This technical solution has a simple structure, novel design, and high degree of integration. It solves the drawbacks of traditional methods that cannot achieve large-scale continuous production of polyurethane sleeper pads and polyurethane elastic pads, and improves the production efficiency and product consistency of polyurethane vibration damping pads. Attached Figure Description

[0017] Figure 1 This is a front view of the structure of this utility model;

[0018] Figure 2This is a top view of the structure of this utility model. Detailed Implementation

[0019] The following will refer to the embodiments of this utility model. Figure 1-2 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] It should be noted that, unless otherwise stated herein, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In this document, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0022] Large-scale, multifunctional, continuous production equipment for polyurethane elastic pads, such as Figure 1-2As shown, the structure includes a heating and insulation box 6, a double-track laminator 7 located inside the heating and insulation box 6, and a casting mechanism located on the outer right side of the heating and insulation box 6. The heating and insulation box 6 provides sufficient temperature for the foaming material to facilitate full foaming. Each track in the double-track laminator 7 is equipped with a drive mechanism that can drive the track to operate continuously. The upper and lower tracks of the double-track laminator 7, which are height-adjustable and mounted on the frame via a lifting mechanism 14, have a gap between them that can accommodate the foaming material. This gap, together with a stop mechanism 13 located on the frame of the double-track laminator 7 and on the long side of the upper and lower tracks for adjusting the width of the elastic pad, forms the cavity required for casting. The rollers at both ends of the upper and lower tracks are connected to a bidirectional screw threadedly mounted vertically and rotatably on the frame via connecting seats. Under the drive of the motor to rotate the bidirectional screw, the upper and lower tracks can move in opposite directions. In addition to the above structure, other structures can also be used. The lifting cylinder, or other lifting structures with this function, are used. The right ends of both the upper and lower tracks of the dual-track laminator 7 extend outwards from the heating and insulation box 6, with the lower track, longer than the upper track, extending outwards to form a receiving section. The discharge port of the casting mechanism points to the receiving section at the right end of the dual-track laminator 7, and the foaming material is filled into the cavity through the receiving section. A water jet cutting system is provided on the left side of the heating and insulation box 6, and the continuously formed foamed elastic pads from the discharge section at the left end of the dual-track laminator 7 enter the water jet cutting system through the discharge port on the left side wall of the heating and insulation box 6, and are cut online into elastic pads of varying lengths. Because the dual-track laminator 7 can operate continuously, the casting mechanism can continuously pour foaming material, and the production process does not need to be interrupted. Due to the pressure between the upper and lower tracks, continuous foaming occurs in the continuously moving cavity, producing foamed elastic pads with high closed-cell rate and good waterproof performance.

[0023] To facilitate the cutting and transfer of the elastic padding layer, a palletizer 10 is provided on the outside of the left side of the heating and insulation box 6, and the left end of the water jet cutting system is located inside the rear side of the palletizer 10. A turnover cart 12 is provided inside the front side of the palletizer 10, which has a high space utilization rate and facilitates the synchronous transfer of finished products to the secondary curing area for storage, thereby realizing the continuous production and processing of the elastic padding layer.

[0024] The specific structure of the waterjet cutting system is as follows: The waterjet cutting system includes a waterjet cutter 9 and a roller conveyor 11. The roller conveyor 11 is located outside the left side of the heating and insulation box 6, and the feed end of the right end of the roller conveyor 11 corresponds to the discharge port of the left end of the heating and insulation box 6. The waterjet cutter 9 is set across the right end of the roller conveyor 11, and the waterjet of the waterjet cutter 9 is located above the roller conveyor 11. The part of the roller conveyor 11 located on the left side of the waterjet cutter 9 extends into the rear side of the palletizer 10. The waterjet cutter 9 can be equipped with a mechanism with length tracking function to realize online automatic measurement and cutting of elastic pads of different lengths.

[0025] It also includes a release paper unwinding and rewinding device, which includes a release paper unwinding frame 2 located on the outside of the right side of the double-track laminator 7 and a release paper rewinding frame 8 located between the heating and insulation box 6 and the water jet cutting system. The release paper unwound by the release paper unwinding frame 2 contacts the lower track in the double-track laminator 7, and enters and exits the cavity along with the foaming material before being rewound by the release paper rewinding frame 8.

[0026] It also includes a reinforcing layer unwinding frame 3 located at the top right end of the heating and insulation box 6. The geotextile on the reinforcing layer unwinding frame 3 is wound onto the bottom surface of the upper track of the double track laminator 7, and the reinforcing layer enters the cavity together with the foaming material. During the molding process, it is bonded to the foaming material to form an elastic pad with anti-puncture and anti-tear functions. The reinforcing layer unwound on the reinforcing layer unwinding frame is geotextile, adhesive mesh, or mesh fabric. If mesh fabric is used, the mesh fabric will form a textured layer on the surface of the pad during the molding process to increase friction. The mesh fabric is recycled at the outlet end of the double track laminator 7.

[0027] The specific structure of the casting mechanism is as follows: The casting mechanism includes a sweeping frame 4 and a feeder 5. The sweeping frame 4 is located on the outer side of the right end of the lower track of the double-track laminator 7, and the feeder 5, which is connected to the foaming machine 1, is installed on the sweeping frame 4 through a swinging device. The feeder 5 is driven by the swinging device to move back and forth along the sweeping frame 4 to fill the cavity with foaming material. The feeder 5 is a mixed feeder containing material A, material B, and color paste C. The swinging device can adopt a screw slide structure, so that the feeder 5 is installed on the slide and the slide moves back and forth on the screw under the drive of the motor. Other swinging structures that can achieve this function can also be used. The foaming machine 1 consists of a feeding structure, a storage tank, a cleaning tank, a hydraulic tank, a plunger pump, a mass flow meter, a circulation pipeline, a mixing head, a control cabinet, etc., which are existing structures and will not be described in detail here.

[0028] The specific structure of the stop mechanism 13 is as follows: The stop mechanism 13 includes multiple stops 13-1 distributed along the length of the frame of the double tracked laminator 7 and evenly distributed between the two long sides of the upper and lower tracks. Multiple electric slides 13-2 are evenly distributed on the long side frame of the double tracked laminator 7, and the stops 13-1 are detachably fixed to the sliding seats of the electric slides 13-2. The stops 13-1 corresponding to the thickness of the elastic pad to be produced are replaced, and the cavity width formed by the upper and lower tracks of the double tracked laminator 7 and the stops 13-1 on both sides is adjusted by the movement of the sliding seats driven by the electric slides 13-2. The sliding seats... A mounting base is fixed with a vertically shaped hole. The stop block 13-1 is height-adjustably fixed to the mounting base by bolts that are adapted to the hole. The hole ensures that the stop block 13-1 is centered between the upper and lower tracks and facilitates the replacement of stop blocks 13-1 of different widths. The product thickness is adjusted by adjusting the distance between the upper and lower tracks of the double track laminator 7 and replacing the stop block 13-1 with the corresponding thickness. The stop block 13-1 is not only a necessary structure for forming the cavity in the casting process, but can also be used to adjust the width of the product and adapt to the thickness adjustment, making it easy to adjust the product specifications.

[0029] This structure is simple, innovative in design, and highly integrated. It solves the shortcomings of traditional methods that cannot achieve large-scale continuous production of polyurethane sleeper pads and polyurethane elastic pads. It improves the production efficiency and consistency of polyurethane vibration damping pads, and achieves overall stability during normal continuous production of polyurethane continuously foamed elastic pads. The pad width (1200-1600mm), thickness (5-60mm), and density (250-950kg / m3) are adjustable. It is suitable for producing track bed vibration damping pads, sleeper pads, and elastic pads under iron pads.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A large-scale, multi-functional, continuous production apparatus for polyurethane elastic pads, characterized in that: The system includes a heating and insulation box (6), a double-track laminator (7) located inside the heating and insulation box (6), and a casting mechanism located on the outer right side of the heating and insulation box (6). The double-track laminator (7) has an adjustable upper track and a lower track mounted on a frame via a lifting mechanism (14) with a gap capable of accommodating foamed material. This gap, together with a stop mechanism (13) located on the frame of the double-track laminator (7) and situated on the long side of the upper and lower tracks, forms the cavity required for casting. The double-track laminator (7) includes a heating and insulation box (6), a double-track laminator (7) with an adjustable upper track and a lower track, and a casting mechanism located on the long side of the upper and lower tracks. The right end of the lower track extends out of the heating and insulation box (6), and the right end of the lower track, which is longer than the upper track, extends outward to form a receiving part. The discharge port of the casting mechanism points to the receiving part at the right end of the double track laminator (7), and the foaming material is filled into the cavity through the receiving part. The left side of the heating and insulation box (6) is equipped with a water jet cutting system, and the foamed elastic pad layer continuously formed by the discharge part at the left end of the double track laminator (7) enters the water jet cutting system through the discharge port on the left side wall of the heating and insulation box (6), and is cut into elastic pad layers of indefinite length online by the water jet cutting system.

2. The production apparatus for large-scale multifunctional continuous polyurethane elastic pads according to claim 1, characterized in that: The heating and insulation box (6) is equipped with a palletizer (10) on the left side outside, and the left end of the water jet cutting system is located inside the rear side of the palletizer (10). The palletizer (10) is equipped with a turnover cart (12) located in front of the water jet cutting system on the front side of the interior.

3. The production apparatus for large-scale multifunctional continuous polyurethane elastic pads according to claim 2, characterized in that: The waterjet cutting system includes a waterjet cutter (9) and a roller conveyor (11). The roller conveyor (11) is located outside the left side of the heating and insulation box (6), and the feed end of the right end of the roller conveyor (11) corresponds to the discharge port of the left end of the heating and insulation box (6). The waterjet cutter (9) is set across the right end of the roller conveyor (11), and the waterjet of the waterjet cutter (9) is located above the roller conveyor (11). The part of the roller conveyor (11) located on the left side of the waterjet cutter (9) extends into the rear side of the palletizer (10).

4. The production apparatus for large-scale multifunctional continuous polyurethane elastic pads according to claim 1, characterized in that: It also includes a release paper unwinding and rewinding device, which includes a release paper unwinding frame (2) located on the outside of the right side of the double-track laminator (7) and a release paper rewinding frame (8) located between the heating and insulation box (6) and the water jet cutting system. The release paper unwinding from the release paper unwinding frame (2) contacts the lower track in the double-track laminator (7), and enters and exits the cavity along with the foaming material before being rewound by the release paper rewinding frame (8).

5. The production apparatus for large-scale multifunctional continuous polyurethane elastic pads according to claim 1, characterized in that: It also includes a reinforcing layer unwinding frame (3) located at the top right end of the heating and insulation box (6). The geotextile on the reinforcing layer unwinding frame (3) is wound around to the bottom surface of the upper track of the double track laminator (7). The reinforcing layer enters the cavity together with the foaming material and is bonded to the foaming material during the molding process to form an elastic pad with anti-puncture and anti-tear functions.

6. The production apparatus for large-scale multifunctional continuous polyurethane elastic pads according to claim 5, characterized in that: The reinforcing layer unwound on the reinforcing layer unwinding frame (3) is geotextile, adhesive mesh, or textured fabric.

7. The production apparatus for large-scale multifunctional continuous polyurethane elastic pads according to claim 1, characterized in that: The casting mechanism includes a sweeping frame (4) and a feeder (5). The sweeping frame (4) is located on the outer side of the right end of the lower track of the double track laminator (7), and the feeder (5) which is connected to the foaming machine (1) is installed on the sweeping frame (4) through a swinging device. The feeder (5) is driven by the swinging device to move back and forth along the sweeping frame (4) to fill the cavity with foaming material.

8. The production apparatus for large-scale multifunctional continuous polyurethane elastic pads according to any one of claims 1-7, characterized in that: The stop mechanism (13) includes multiple stops (13-1) distributed along the length of the frame of the double tracked laminator (7) and evenly distributed between the two long sides of the upper track and the lower track. Multiple electric slides (13-2) are evenly distributed on the long side frame of the double tracked laminator (7), and the stops (13-1) are detachably fixed on the sliding seat of the electric slide (13-2). The stops (13-1) corresponding to the width of the elastic pad to be produced are replaced. The width of the cavity formed by the upper track and the lower track of the double tracked laminator (7) and the stops (13-1) on both sides between them is adjusted under the drive of the electric slide (13-2) to move the sliding seat.

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