Polyurethane foam cutting device

Abstract

The utility model discloses a polyurethane foam cutting device which comprises a working table and a machine frame, a cutter groove is formed in the upper surface of the working table, a cutter is rotationally connected to the machine frame, a first fixing plate is fixedly connected to one side of the machine frame, a second fixing plate is fixedly connected to the upper surface of the first fixing plate, and the second fixing plate is fixedly connected to the other side of the machine frame. And a moving structure is arranged on the second fixing plate. By arranging the servo motor, the gear, the moving pipe, the dust hood, the rack and the like, the servo motor drives the rotating rod to rotate, the rotating rod drives the gear to rotate, the gear drives the rack to move, and the rack drives the moving pipe to move, so that the moving pipe drives the dust hood to move to a proper position above polyurethane foam; the dust is sucked into the moving pipe through the dust hood, conveyed into the hose through the moving pipe and then sucked into the filtering frame in the air inducing box, and the situation that a large number of chippings float in the air, are difficult to clean and are sucked into the body of a worker, and the body health of the worker is affected is avoided.

Description

Technical Field

[0001] This utility model relates to the field of foam cutting device technology, and in particular to a polyurethane foam cutting device. Background Technology

[0002] Polyurethane foam is a high-molecular polymer, mainly composed of isocyanate and polyether. It is produced by mixing various additives such as foaming agents, catalysts, and flame retardants using specialized equipment, followed by high-pressure spraying and on-site foaming. Due to its large volume and softness, the friction between the polyurethane foam and the worktable is significant during rotation, resulting in time-consuming and labor-intensive processes and low production efficiency. Therefore, the authorized publication CN 214561406 U discloses a "Cutting Device for Polyurethane Foam." This solution places the polyurethane foam on a worktable and covers it with a tray. When rotation is required, a drive rod is pushed, causing a top rod to move upwards via a transmission mechanism. The tray lifts the polyurethane foam, reducing the contact area between the foam and the worktable and decreasing friction, thus facilitating rotation. After rotating to a suitable angle, the drive rod is released, and gravity causes the tray to move downwards, allowing the polyurethane foam to lie flat on the worktable again, thereby improving production efficiency.

[0003] However, in existing equipment, when the cutter cuts polyurethane foam, a large amount of foam debris is generated and floats in the air. It is difficult for workers to clean up and is also easy for workers to inhale, which affects their health. Therefore, a polyurethane foam cutting device has been proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a polyurethane foam cutting device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a polyurethane foam cutting device, comprising a workbench and a frame, wherein a blade groove is provided on the upper surface of the workbench, a cutting blade is rotatably connected to the frame, a first fixing plate is fixedly connected to one side of the frame, a second fixing plate is fixedly connected to the upper surface of the first fixing plate, a movable structure is provided on the second fixing plate, an air duct is fixedly connected to one side of the frame, a sliding groove is provided on one side of the air duct, a snap-fit ​​hole is provided at the top of the inner side of the sliding groove, a filter frame is slidably connected inside the sliding groove, a movable groove is provided on one side of the filter frame, and a quick-release component is provided in the movable groove;

[0006] The movable structure includes a rotating rod rotatably connected to one side of the second fixed plate, and a gear is fixedly connected to one end of the rotating rod.

[0007] As a further description of the above technical solution:

[0008] A servo motor is fixedly connected to the other side of the second fixing plate, and the output shaft of the servo motor is fixedly connected to one end of the rotating rod.

[0009] As a further description of the above technical solution:

[0010] A movable tube is slidably connected through the upper surface of the first fixed plate. A dust suction cover is fixedly connected to the bottom of the movable tube. A rack is fixedly connected to one side of the movable tube, and the rack meshes with a gear.

[0011] As a further description of the above technical solution:

[0012] A flexible hose is fixedly connected to the upper surface of the air duct, and the other end of the flexible hose is fixedly connected to the upper surface of the moving tube.

[0013] As a further description of the above technical solution:

[0014] The quick-release assembly includes a fixed rod fixedly connected to the bottom of the movable slot, a movable block slidably connected to the fixed rod, a snap-fit ​​block fixedly connected to the upper surface of the movable block, the snap-fit ​​block slidably connected through the upper surface of the filter frame, the snap-fit ​​block being adapted to the snap-fit ​​hole, and a toggle post fixedly connected to one side of the movable block.

[0015] As a further description of the above technical solution:

[0016] A spring is movably mounted on the fixed rod. One end of the spring is fixedly connected to the inner bottom of the moving groove, and the other end is fixedly connected to the bottom of the moving block.

[0017] As a further description of the above technical solution:

[0018] An induced draft fan is fixedly connected to the bottom of the induced draft box, and the induced draft end of the induced draft fan extends to one side of the inside of the induced draft box.

[0019] This utility model has the following beneficial effects:

[0020] 1. Compared with existing technologies, this polyurethane foam cutting device, by setting up a servo motor, gears, a moving tube, a dust suction hood, and a rack, etc., the servo motor drives the rotating rod to rotate, the rotating rod drives the gear to rotate, the gear drives the rack to move, and the rack drives the moving tube to move. This causes the moving tube to move the dust suction hood to an appropriate position above the polyurethane foam. The debris generated during cutting is sucked into the moving tube through the dust suction hood, then transported into the flexible hose, and then sucked into the filter frame inside the air box. This avoids a large amount of debris floating in the air, which is difficult to clean and can be inhaled by workers, affecting their health.

[0021] 2. Compared with the existing technology, this polyurethane foam cutting device is equipped with a fixed rod, a moving block, a locking block, a toggle column, and a spring. The toggle column is pushed down, which drives the moving block to move. The moving block drives the locking block to move and compresses the spring, causing the locking block to disengage from the locking hole. Then the filter frame can be pulled out, making it convenient for staff to centrally handle the foam debris inside the filter frame. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the polyurethane foam cutting device proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the moving structure of the polyurethane foam cutting device proposed in this utility model;

[0024] Figure 3 This is an exploded view of the moving structure of the polyurethane foam cutting device proposed in this utility model;

[0025] Figure 4 A schematic diagram of the filter frame of the polyurethane foam cutting device proposed in this utility model;

[0026] Figure 5 This is a cross-sectional view of the moving block of the polyurethane foam cutting device proposed in this utility model;

[0027] Figure 6 This is a cross-sectional view of the air duct of the polyurethane foam cutting device proposed in this utility model.

[0028] Legend:

[0029] 1. Workbench; 2. Frame; 3. First fixed plate; 4. Second fixed plate; 5. Moving structure; 501. Servo motor; 502. Gear; 503. Moving tube; 504. Dust hood; 505. Rack; 6. Exhaust box; 7. Filter frame; 8. Moving slot; 9. Quick-release assembly; 901. Fixed rod; 902. Moving block; 903. Snap-fit ​​block; 904. Actuating column; 905. Spring; 10. Exhaust fan; 11. Hose; 12. Cutter; 13. Knife groove. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1 to 6The polyurethane foam cutting device provided by this utility model includes a workbench 1 and a frame 2. The upper surface of the workbench 1 is provided with a knife groove 13. A cutter 12 is rotatably connected to the frame 2. A first fixing plate 3 is fixedly connected to one side of the frame 2. A second fixing plate 4 is fixedly connected to the upper surface of the first fixing plate 3. A movable structure 5 is provided on the second fixing plate 4. An air duct 6 is fixedly connected to one side of the frame 2. An air blower 10 is fixedly connected to the bottom of the air duct 6. The air duct end of the air blower 10 extends to the inside side of the air duct 6. After the air blower 10 is started, a negative pressure is formed inside the air duct 6, so that the air duct 6 has suction. A hose 11 is fixedly connected to the upper surface of the air duct 6. The other end of the hose 11 is fixedly connected to the upper surface of the movable pipe 503. A sliding groove is provided on one side of the air duct 6. A snap-fit ​​hole is provided at the top of the sliding groove. A filter frame 7 is slidably connected inside the sliding groove. A movable groove 8 is provided on one side of the filter frame 7. A quick-release component 9 is provided in the movable groove 8.

[0032] The movable structure 5 includes a rotating rod rotatably connected to one side of the second fixed plate 4. A servo motor 501 is fixedly connected to the other side of the second fixed plate 4. The output shaft of the servo motor 501 is fixedly connected to one end of the rotating rod. A gear 502 is fixedly connected to one end of the rotating rod. A movable tube 503 is slidably connected through the upper surface of the first fixed plate 3. A dust suction cover 504 is fixedly connected to the bottom of the movable tube 503. A rack 505 is fixedly connected to one side of the movable tube 503. The rack 505 meshes with the gear 502. The servo motor 501 drives the rotation. The rod rotates, which drives the gear 502 to rotate. The gear 502 drives the rack 505 to move, and the rack 505 drives the moving tube 503 to move. This causes the moving tube 503 to move the dust collection hood 504 to a suitable position above the polyurethane foam. The debris generated during cutting is sucked into the moving tube 503 through the dust collection hood 504, and then transported into the hose 11 through the moving tube 503. Finally, it is sucked into the filter frame 7 inside the air box 6, preventing a large amount of debris from floating in the air, which is difficult to clean and can be inhaled by workers, thus affecting their health.

[0033] To facilitate disassembly and assembly, the quick-release assembly 9 includes a fixed rod 901 fixedly connected to the bottom of the moving groove 8. A moving block 902 is slidably connected to the fixed rod 901. A spring 905 is movably mounted on the fixed rod 901. One end of the spring 905 is fixedly connected to the bottom of the moving groove 8, and the other end is fixedly connected to the bottom of the moving block 902. A snap-fit ​​block 903 is fixedly connected to the upper surface of the moving block 902. The snap-fit ​​block 903 is slidably connected to the upper surface of the filter frame 7 and is adapted to the snap-fit ​​hole. A toggle post 904 is fixedly connected to one side of the moving block 902. Pushing the toggle post 904 downwards causes the moving block 902 to move, which in turn causes the snap-fit ​​block 903 to move and compress the spring 905, causing the snap-fit ​​block 903 to disengage from the snap-fit ​​hole. Then, the filter frame 7 can be pulled out, making it convenient for staff to centrally handle the foam debris inside the filter frame 7.

[0034] Working principle: Place polyurethane foam on a tray, then press it down with one hand on the polyurethane foam away from the cutter 12. Then, start the blower 10, which creates negative pressure inside the blower box 6. Move the worktable 1, which moves the polyurethane foam onto the cutter 12. While the cutter 12 cuts the polyurethane foam, the servo motor 501 drives the rotating rod to rotate. The rotating rod drives the gear 502 to rotate. The gear 502 drives the rack 505 to move. The rack 505 drives the moving tube 503 to move, which moves the dust collection hood 504 to an appropriate position above the polyurethane foam. During cutting, the debris generated is sucked into the moving tube 503 through the dust suction hood 504, then transported into the hose 11, and finally sucked into the filter frame 7 inside the air box 6. This prevents a large amount of debris from floating in the air, which is difficult to clean and could be inhaled by workers, affecting their health. After cutting, the actuating column 904 is pushed down, which moves the moving block 902. The moving block 902 moves the locking block 903 and compresses the spring 905, causing the locking block 903 to disengage from the locking hole. Then the filter frame 7 is pulled out, making it convenient for workers to collect and dispose of the foam debris inside the filter frame 7.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A polyurethane foam cutting device, comprising a worktable (1) and a frame (2), characterized in that: The upper surface of the workbench (1) is provided with a knife groove (13), a cutter (12) is rotatably connected to the frame (2), a first fixing plate (3) is fixedly connected to one side of the frame (2), a second fixing plate (4) is fixedly connected to the upper surface of the first fixing plate (3), a moving structure (5) is provided on the second fixing plate (4), an air box (6) is fixedly connected to one side of the frame (2), a sliding groove is provided on one side of the air box (6), a snap-fit ​​hole is provided at the top of the inner side of the sliding groove, a filter frame (7) is slidably connected inside the sliding groove, a moving groove (8) is provided on one side of the filter frame (7), and a quick-release component (9) is provided inside the moving groove (8). The movable structure (5) includes a rotating rod rotatably connected to one side of the second fixed plate (4), and a gear (502) is fixedly connected to one end of the rotating rod.

2. The polyurethane foam cutting device according to claim 1, characterized in that: A servo motor (501) is fixedly connected to the other side of the second fixing plate (4), and the output shaft of the servo motor (501) is fixedly connected to one end of the rotating rod.

3. The polyurethane foam cutting device according to claim 1, characterized in that: A movable tube (503) is slidably connected through the upper surface of the first fixed plate (3). A dust suction cover (504) is fixedly connected to the bottom of the movable tube (503). A rack (505) is fixedly connected to one side of the movable tube (503). The rack (505) meshes with a gear (502).

4. The polyurethane foam cutting device according to claim 3, characterized in that: A flexible hose (11) is fixedly connected to the upper surface of the air duct (6), and the other end of the flexible hose (11) is fixedly connected to the upper surface of the moving tube (503).

5. The polyurethane foam cutting device according to claim 1, characterized in that: The quick-release assembly (9) includes a fixed rod (901) fixedly connected to the bottom of the movable groove (8), a movable block (902) slidably connected to the fixed rod (901), a snap-fit ​​block (903) fixedly connected to the upper surface of the movable block (902), the snap-fit ​​block (903) slidably connected to the upper surface of the filter frame (7), the snap-fit ​​block (903) is adapted to the snap-fit ​​hole, and a toggle post (904) fixedly connected to one side of the movable block (902).

6. The polyurethane foam cutting device according to claim 5, characterized in that: A spring (905) is movably mounted on the fixed rod (901). One end of the spring (905) is fixedly connected to the inner bottom of the moving groove (8), and the other end is fixedly connected to the bottom of the moving block (902).

7. The polyurethane foam cutting device according to claim 1, characterized in that: The bottom of the air duct (6) is fixedly connected to an air blower (10), and the air duct end of the air blower (10) extends to one side of the interior of the air duct (6).

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