A cutting device and process for foam

Abstract

The present invention discloses a cutting device and process for foam, relating to the technical field of laser cutting. It includes a frame, a material placing mechanism, a moving beam, a mounting seat, a laser, a laser head, and a first mounting ring. A swing arm is hinged to the periphery of the first mounting ring; a sorting mechanism is provided at the lower end of the swing arm; and an inert gas blowing pipe is connected to the periphery of the first mounting ring. In the present invention, the sorting mechanism pries open the slit formed by the laser head cutting, thereby expanding the upper opening of the slit. The inert gas blowing pipe blows inert gas into the upper opening of the slit. The inert gas will produce a protective effect on the cutting end face of the foam in the slit, thereby preventing the residual heat from burning the cutting surface of the foam. In addition, since the upper opening of the slit is pried open, the inert gas can be blown smoothly to the cutting surface of the foam. Moreover, since the slit is pried open, the distance between the two opposite cutting surfaces increases, thus avoiding the mutual influence of the residual heat of the two cutting surfaces.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting, and specifically relates to a cutting device and process for foam. Background Art

[0002] Foam is a porous, soft and breathable material, mainly made of plastic materials such as polyester and polyether. It has excellent heat insulation, sound insulation and shock absorption properties, and is a practical composite material widely used in various equipment, products and buildings. There are many types of foam materials, including polyurethane foam, polyester foam, polyethylene foam, etc. Polyurethane foam has good sound insulation and heat insulation properties, polyester foam is commonly used in packaging, sound insulation, etc., and polyethylene foam is suitable for packaging protection and sound insulation and heat insulation materials.

[0003] When processing foam, a laser cutter is generally required to cut the foam into appropriate sizes. For example, a multi-angle adjustable laser cutting device for foam disclosed in the Chinese Utility Model Patent Publication No. CN222588431U uses a laser to generate heat to cut the foam. However, when the laser cuts, a large amount of heat will be generated on the cutting surface of the foam. After cutting, the cutting surface of the foam is burned by the residual heat, resulting in the formation of a carbonized layer on the cutting surface of the foam. The carbonized layer will affect the quality of the cutting surface of the foam to a certain extent, and the above technology does not take corresponding measures to improve the phenomenon of carbonized layer generation. Therefore, there is an urgent need in the art for a laser cutting device or equipment that can reduce the phenomenon of carbonized layer generation on the cutting surface of foam during laser cutting. Summary of the Invention

[0004] The purpose of the present invention is to provide a cutting device and process for foam to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A cutting device for foam, comprising:

[0007] A frame and a material placing mechanism installed in the middle of the frame;

[0008] A moving beam horizontally slidably connected to the top of the frame;

[0009] A mounting seat horizontally slidably connected to the top of the moving beam, and the moving direction of the mounting seat on the moving beam is perpendicular to the moving direction of the moving beam on the frame;

[0010] A laser installed on the mounting seat, and a laser head is installed at the lower end of the laser;

[0011] A first mounting ring sleeved on the periphery of the laser, and a swing arm is hinged to the periphery of the first mounting ring;

[0012] A sorting mechanism provided at the lower end of the swing arm;

[0013] An inert gas blowing pipe connected to the periphery of the first mounting ring.

[0014] Through the above technical solution, the sorting mechanism pries open the slit formed by the laser head cutting, thereby expanding the upper opening of the slit. The inert gas blowing pipe blows inert gas into the upper opening of the slit. The inert gas will produce a protective effect on the cutting end face of the foam in the slit, thereby preventing the residual heat from burning the cutting surface of the foam. In addition, since the upper opening of the slit is pried open, the inert gas can be blown smoothly to the cutting surface of the foam. In addition, since the slit is pried open, the distance between the two opposite cutting surfaces increases, thus avoiding the mutual influence of the residual heat of the two cutting surfaces.

[0015] Further, synchronous belt wheels are rotatably connected to the four corners at the top of the frame respectively. Two of the synchronous belt wheels located on both sides of the moving direction of the moving beam are jointly wound with a synchronous belt. The two ends in the length direction of the moving beam are respectively fixedly connected to the two synchronous belts correspondingly. Two of the synchronous belt wheels corresponding to both sides in the length direction of the moving beam and located on the same side of the frame are connected by a transmission rod. One of the synchronous belt wheels is driven to rotate by a first servo motor installed on the top of the frame.

[0016] Through the above technical solution, one of the synchronous belt wheels is driven to rotate by the first servo motor, so that the four synchronous belt wheels rotate synchronously. The two synchronous belts will drive the two ends of the moving beam to move synchronously, thereby realizing the horizontal movement of the moving beam on the top of the frame.

[0017] Further, a second servo motor is installed on the top of the moving beam. A lead screw is horizontally rotatably connected to the top of the moving beam. The second servo motor is drivingly connected to the lead screw, and the lead screw is threadedly penetrated through the mounting seat.

[0018] Through the above technical solution, the second servo motor drives the lead screw to rotate, and the lead screw cooperates with the mounting seat to drive the mounting seat to move on the top of the moving beam.

[0019] Further, the blanking mechanism includes a lifting frame provided in the middle of the frame. A plurality of strip-shaped pointed plates are provided on the top of the lifting frame. A plurality of rotating screws are vertically rotatably connected to the frame. A lifting bracket is threadedly sleeved on the periphery of the rotating screw. The upper end of the lifting bracket is connected to the lifting frame. A third servo motor is installed on the frame. The third servo motor drives a plurality of the rotating screws to rotate synchronously through a transmission member.

[0020] Through the above technical solution, a plurality of rotating screws are driven by a third servo motor to rotate, and then through the screw engagement between the rotating screws and the lifting bracket, the lifting bracket is driven to drive the lifting frame to move up and down, so that the height of the foam placed on the surface of the strip-shaped pointed plate can be adjusted, thereby adjusting the cutting depth of the foam.

[0021] Furthermore, a second mounting ring is installed on the periphery of the laser, a movable hinge seat is hinged on the periphery of the second mounting ring, a finger cylinder is installed on the movable hinge seat, a connecting block is fixedly connected to the cylinder rod of the finger cylinder, a hinge rod is fixedly connected to the surface of the swing arm, and one end of the hinge rod away from the swing arm is hinged to the connecting block.

[0022] Through the above technical solution, the cylinder rod of the finger cylinder extends and retracts to drive the connecting block to move up and down. When the connecting block moves up and down, it will drive the hinge rod to swing along the hinge at the periphery of the first mounting ring of the swing arm, thereby driving the swing arm to swing up and down.

[0023] Furthermore, both the first mounting ring and the second mounting ring are rotatably connected to the periphery of the laser, and an angle adjustment unit is provided on the periphery of the second mounting ring.

[0024] Through the above technical solution, since both the first mounting ring and the second mounting ring are rotatably connected to the periphery of the laser, the angle of the sorting mechanism rotating around the laser can be adjusted, so that the sorting mechanism can adapt to cutting in different directions.

[0025] Furthermore, the angle adjustment unit includes a bolt mounting block fixedly connected to the periphery of the second mounting ring, a fastening bolt is horizontally threaded through the outer wall of the bolt mounting block, and the fastening bolt abuts against the periphery of the laser to lock and stop the second mounting ring.

[0026] Through the above technical solution, the fastening bolt is screwed on the bolt mounting block until the end of the fastening bolt abuts against the periphery of the laser, and then the second mounting ring is locked, so that the sorting mechanism is in a locked state after the angle adjustment is completed.

[0027] Furthermore, the sorting mechanism includes a cylindrical portion horizontally fixedly connected to the lower end of the swing arm, two sliding pins are slidably inserted through both ends of the cylindrical portion, and a sorting frame is fixedly sleeved on one end of the sliding pin protruding out of the cylindrical portion;

[0028] Relative ends of the two sorting frames are each vertically fixedly connected with a sorting piece, an insertion slot piece is provided at the lower end of the sorting piece, and the thickness dimension of the insertion slot piece is smaller than the thickness dimension of the sorting piece;

[0029] A separating driving assembly is provided in the cylindrical portion, and the separating driving assembly is used to drive the two sorting frames to move away from each other.

[0030] Through the above technical solution, the driving assembly drives the two dividing frames to move away from each other, so that the two dividing plates can open the slits on the foam, and after the two dividing plates are combined, they can be inserted into the slits of the foam.

[0031] Furthermore, the pushing-apart drive assembly includes a magnetic slider fixedly sleeved on the other end of the sliding pin, a sliding cavity is provided in the cylindrical portion for the magnetic slider to slide freely, an electromagnet is provided in the sliding cavity, the electromagnet is located between the two magnetic sliders, and an elastic member is provided between the electromagnet and the two magnetic sliders, the elastic member gives the magnetic slider potential energy to move in a direction away from the electromagnet.

[0032] Through the above technical scheme, the electromagnet generates magnetism when energized, thereby generating magnetic attraction on the magnetic slider, so that the two magnetic sliders respectively drive the two sliding pins to move in the direction of approaching each other, thereby merging the two dividing plates, and the elastic part accumulates elastic potential energy. When the electromagnet is powered off, it loses its magnetism, and the elastic potential energy accumulated in the elastic part is released, thereby driving the two magnetic sliders to move in the direction of moving away from each other, thereby causing the two dividing plates to move in the direction of moving away from each other.

[0033] A foam cutting process, applied to the cutting device as described above, comprises:

[0034] Place the foam to be cut flat on the shelf mechanism, and move the moving beam on the frame to move the laser and the laser head to the processing position;

[0035] The laser is started, so that the laser head starts to laser cut the surface of the foam. When a slit is cut on the surface of the foam, the swing arm swings downward, and the dividing mechanism is inserted into the slit, and then the upper side of the slit is opened, so that the width of the upper side of the slit is greater than the width of the lower side;

[0036] The external inert gas delivery equipment delivers the inert gas to the inert gas blowing pipe, which then blows the inert gas toward the narrow gap formed at the cutting part by the laser head. Since the distribution mechanism expands the narrow gap that has been processed, the inert gas can smoothly enter the narrow gap formed at the cutting part, and then the end face of the cutting part is protected by the inert gas.

[0037] Through the above technical solution, the burning of the foam cutting surface by residual heat is reduced, thereby reducing the generation of the carbonized layer. In addition, the distribution mechanism can pry open the upper side opening of the slit to allow the inert gas to be blown smoothly into the slit.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1. In the present invention, the slitting mechanism pries open the slit formed by the laser head, thereby expanding the upper opening of the slit. The inert gas blowing pipe blows inert gas into the upper opening of the slit. The inert gas will protect the cutting end face of the foam in the slit, thereby preventing the residual heat from burning the cutting surface of the foam. In addition, since the upper opening of the slit is pried open, the inert gas can be smoothly blown to the cutting surface of the foam. Moreover, since the slit is pried open, the distance between the two opposite cutting surfaces increases, thus avoiding the mutual influence of the residual heat of the two cutting surfaces.

[0040] 2. In the present invention, the third servo motor drives a plurality of rotating screws to rotate, and then through the screw engagement between the rotating screws and the lifting bracket, the lifting bracket is driven to drive the lifting frame to perform a lifting movement, so that the height of the foam placed on the surface of the strip-shaped pointed plate can be adjusted, thereby adjusting the cutting depth of the foam.

[0041] 3. In the present invention, since both the first mounting ring and the second mounting ring are rotatably connected to the periphery of the laser, the angle of rotation of the slitting mechanism around the laser can be adjusted, so that the slitting mechanism can adapt to cutting in different directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a schematic diagram of the overall structure of a cutting device for foam in the present invention;

[0043] Figure 2 is Figure 1 a schematic diagram of the positional relationship from another perspective in

[0044] Figure 3 is a schematic diagram of the positional relationship after the assembly of the laser, the swing arm and the inert gas blowing pipe in the present invention;

[0045] Figure 4 is Figure 3 a schematic diagram of the positional relationship from another perspective in

[0046] Figure 5 is a schematic diagram of the positional relationship after the assembly of the swing arm, the hinge rod and the cylindrical part in the present invention;

[0047] Figure 6 is Figure 5 an exploded view of the structure in

[0048] Figure 7 is Figure 6 an enlarged schematic diagram of the partial structure at A in

[0049] In the figure, the descriptions of each reference numeral are as follows: 1, frame; 2, lifting frame; 3, strip-shaped pointed plate; 4, moving beam; 5, synchronous belt; 6, first servo motor; 7, transmission rod; 8, rotating screw; 9, second servo motor; 10, lead screw; 11, internally threaded slider; 12, laser head; 13, mounting seat; 14, lifting bracket; 15, third servo motor; 16, first mounting ring; 17, inert gas blowing pipe; 18, fastening bolt; 19, bolt mounting block; 20, second mounting ring; 21, movable hinge seat; 22, laser; 23, finger cylinder; 24, connecting block; 25, hinge rod; 26, swing arm; 27, cylindrical part; 28, dialing piece; 29, slotting piece; 30, dialing frame; 31, sliding pin; 32, magnetically conductive slider; 33, electromagnet; 34, elastic member. Specific Embodiment

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0051] Please refer to Figure 1 - Figure 7 , the present invention provides a technical solution: a cutting device for foam, including a frame 1. Linear guide rails and sliders are respectively installed on the opposite sides of the top of the frame 1. The two sliders are jointly connected with a moving beam 4, that is, the two ends of the moving beam 4 in the length direction are respectively connected to the two sliders on the top of the frame 1, so that the moving beam 4 can move horizontally on the frame 1. In addition, the length direction of the moving beam 4 is perpendicular to the direction of its horizontal movement on the frame 1. Synchronous belt mounting seats are respectively installed at the two ends of the left and right sides of the frame 1. A synchronous belt 5 is horizontally rotatably connected to the synchronous belt mounting seats. Refer to Figure 1 , the two synchronous belt pulleys on the left side of the frame 1 are jointly wound with a synchronous belt 5. Similarly, the two synchronous belt pulleys on the right side of the frame 1 are also jointly wound with the synchronous belt 5. The two synchronous belt pulleys on the same side of the frame 1 are connected by a transmission rod 7, so that the four synchronous belt pulleys can rotate synchronously. A first servo motor 6 is installed on the frame 1, and the first servo motor 6 is drivingly connected to one of the synchronous belt pulleys. In this way, when the motor shaft of the first servo motor 6 rotates, the four synchronous belt pulleys rotate synchronously. The two ends of the moving beam 4 in the length direction are respectively connected to the belt bodies of the two synchronous belts 5. In this way, when the synchronous belt 5 moves, it can drive the moving beam 4 to move horizontally on the top of the frame 1;

[0052] A lifting frame 2 is movably arranged in the middle of a frame 1. A plurality of strip-shaped pointed plates 3 are arranged at the top of the lifting frame 2, with the pointed parts of the strip-shaped pointed plates 3 facing upwards and used for placing the foam to be processed. A plurality of rotating screws 8 are vertically rotatably connected to the frame 1. A lifting bracket 14 is threadedly sleeved on the periphery of the rotating screw 8. The upper end of the lifting bracket 14 is connected to the lifting frame 2. A third servo motor 15 is installed on the frame 1. A belt pulley is fixedly sleeved on the periphery of the rotating screw 8. All the belt pulleys are jointly sleeved with a belt. In this way, when one of the rotating screws 8 rotates, it can drive other rotating screws 8 to rotate synchronously through the belt pulley, and then through the threaded engagement of the rotating screw 8 and the lifting bracket 14, the lifting frame 2 can be driven to move up and down, so that the cutting depth of the foam can be adjusted;

[0053] An internally threaded slider 11 is horizontally slidably connected to the top of a moving beam 4 through the installation of a linear slide rail and a slider. The top of the internally threaded slider 11 is connected with a mounting seat 13. The moving direction of the mounting seat 13 on the moving beam 4 is perpendicular to the moving direction of the moving beam 4 on the frame 1. Both ends of the moving beam 4 are horizontally rotatably connected with a lead screw 10. The lead screw 10 threadedly penetrates through the internally threaded slider 11. A second servo motor 9 is installed on the moving beam 4. The motor shaft of the second servo motor 9 is connected to one end of the lead screw 10. Thus, when the motor shaft of the second servo motor 9 rotates, it can drive the lead screw 10 to rotate. When the lead screw 10 rotates, it will synchronously drive the threaded engagement of the lead screw 10 and the internally threaded slider 11, and drive the mounting seat 13 to move along the length direction of the moving beam 4;

[0054] A laser 22 is fixedly penetrated through the mounting seat 13. A laser head 12 is installed at the lower end of the laser 22. A first mounting ring 16 is rotatably sleeved on the lower side of the periphery of the laser 22 through a bearing. A swing arm 26 is hinged to the periphery of the first mounting ring 16. A cylindrical part 27 is horizontally and fixedly connected to the lower end of the swing arm 26. One side of the periphery of the first mounting ring 16 is connected with an inert gas blowing pipe 17. The inert gas blowing pipe 17 is connected to an external inert gas conveying device through a gas pipe. Sliding pins 31 are horizontally slidably penetrated through both axial ends of the cylindrical part 27. A distributing frame 30 is fixedly sleeved on the end of the sliding pin 31 protruding out of the cylindrical part 27. Distributing pieces 28 are vertically and fixedly connected to the opposite ends of the two distributing frames 30. An inserting slit piece 29 is arranged at the lower end of the distributing piece 28. The thickness dimension of the inserting slit piece 29 is smaller than the thickness dimension of the distributing piece 28, and the sum of the thickness dimensions of the two inserting slit pieces 29 is not greater than the width dimension of the fine slit formed by the laser head 12 cutting on the surface of the foam, so that the inserting slit piece 29 can be inserted into the fine slit;

[0055] The upper side of the periphery of the laser 22 is rotationally connected with a second mounting ring 20 through a mounting bearing. The periphery of the second mounting ring 20 is hinged with a movable hinge seat 21. A finger cylinder 23 is mounted on the movable hinge seat 21. A connecting block 24 is fixedly connected to the cylinder rod of the finger cylinder 23. A hinge rod 25 is fixedly connected to the surface of the swing arm 26. One end of the hinge rod 25 away from the swing arm 26 is hinged to the connecting block 24. When the cylinder rod of the finger cylinder 23 expands and contracts, it drives the connecting block 24 to move up and down. When the connecting block 24 moves up and down, it drives the hinge rod 25 to swing along the hinge at the periphery of the first mounting ring 16 of the swing arm 26, thereby driving the swing arm 26 to swing up and down;

[0056] One end of the sliding pin 31 inserted into the cylindrical part 27 is fixedly sleeved with a magneto - conductive slider 32. A sliding cavity for the free sliding of the magneto - conductive slider 32 is provided in the cylindrical part 27. An electromagnet 33 is arranged in the sliding cavity. The on - off of the power supply of the electromagnet 33 is controlled by the control cabinet of the laser cutting device. The electromagnet 33 is located between the two magneto - conductive sliders 32, and an elastic member 34 is provided between the electromagnet 33 and each of the two magneto - conductive sliders 32. The elastic member 34 gives the magneto - conductive slider 32 the potential energy to move in the direction away from the electromagnet 33. The elastic member 34 in this embodiment can be a spring. In addition, the magneto - conductive slider 32 is made of any one of iron, cobalt, and nickel;

[0057] The periphery of the second mounting ring 20 is fixedly connected with an L - shaped bolt mounting block 19. One side of the bolt mounting block 19 extends downward, and a fastening bolt 18 is horizontally threaded through it. The fastening bolt 18 abuts against the periphery of the laser 22 to lock and stop the second mounting ring 20. Rotate the second mounting ring 20 so that the second mounting ring 20 rotates on the periphery of the laser 22 and drives the finger cylinder 23, the connecting block 24, the hinge rod 25, and the swing arm 26 to rotate synchronously, thereby making the dialing piece 28 rotate around the periphery of the laser 22 until the dialing piece 28 rotates to the rear side of the cutting direction of the laser 22. Then tighten the fastening bolt 18 so that the fastening bolt 18 is screwed on the bolt mounting block 19 until the end of the fastening bolt 18 abuts against the periphery of the laser 22, thereby locking and limiting the second mounting ring 20.

[0058] The working principle of the present invention:

[0059] Lay the foam to be cut flat on the strip - shaped pointed plate 3, and then start the first servo motor 6. When the motor shaft of the first servo motor 6 rotates, it can drive one of the synchronous belt pulleys on the upper right side of the frame 1 to rotate. Through the transmission of the synchronous belt 5, the synchronous belt pulley on the lower right side of the frame 1 also rotates synchronously. In addition, through the transmission of the transmission rod 7, the two synchronous belt pulleys on the left side of the frame 1 also rotate. The two ends in the length direction of the moving beam 4 are respectively connected to the belt bodies of the two synchronous belts 5. For example, the belt body of the synchronous belt 5 can be connected to the surface of the end of the moving beam 4 by riveting. In this way, when the synchronous belt 5 moves, it can drive the moving beam 4 to move horizontally on the top of the frame 1;

[0060] Then, by starting the second servo motor 9, the second servo motor 9 drives the lead screw 10 to rotate. When the lead screw 10 rotates, through the thread engagement with the internal thread slider 11, the internal thread slider 11 and the mounting seat 13 are driven to move horizontally, so that the laser head 12 moves to the processing position;

[0061] The external inert gas delivery device delivers inert gas (such as nitrogen) to the inert gas blowing pipe 17 and blows it below the laser head 12. The laser generator 22 operates and generates laser, which is emitted by the laser head 12 and starts to cut the foam. During cutting, the first servo motor 6 drives the synchronous pulley to rotate, so that the moving beam 4 moves horizontally on the top of the frame 1, and the laser head 12 starts to perform linear cutting on the foam. During cutting, the cylinder rod of the finger cylinder 23 extends to drive the connecting block 24 to move downward. When the connecting block 24 moves downward, it will drive the hinge rod 25 to swing downward along the hinge at the periphery of the first mounting ring 16 of the swing arm 26, and then drive the swing arm 26 to swing, so that the swing arm 26 approaches the top surface of the foam, and finally the slotting piece 29 on the sorting piece 28 is inserted into the formed slit;

[0062] The control cabinet of the laser cutting equipment controls the electromagnet 33 to cut off the power and lose magnetism. Under the action of the elastic potential energy of the elastic member 34, the two magnetic conductive sliders 32 drive the two sliding pins 31 to move away from each other respectively. In this way, the sorting piece 28 produces a prying effect on the slit, and then the width dimension of the upper side opening of the slit increases. After the slit opening expands, the inert gas can fully enter the slit and form a protective layer in the slit, reducing the oxygen content in the slit. In this way, when the laser head 12 continues to cut, due to the residual heat in the slit, the amount of oxygen in contact with the residual heat decreases, and thus the cutting surface of the foam will not be burned, reducing the generation of the carbonized layer. After the linear cutting is completed, the cylinder rod of the finger cylinder 23 shortens and drives the slotting piece 29 to move upward, and then the electromagnet 33 is powered on again, so that the two slotting pieces 29 can be combined for the next operation.

[0063] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting device for foam, characterized in that, Comprising: A frame (1) and a stock placing mechanism installed in the middle of the frame (1); A moving beam (4) horizontally slidably connected to the top of the frame (1); A mounting seat (13) horizontally slidably connected to the top of the moving beam (4), the moving direction of the mounting seat (13) on the moving beam (4) is perpendicular to the moving direction of the moving beam (4) on the frame (1); A laser (22) installed on the mounting seat (13), and a laser head (12) is installed at the lower end of the laser (22); A first mounting ring (16) sleeved on the periphery of the laser (22), and a swing arm (26) is hinged to the periphery of the first mounting ring (16); A sorting mechanism arranged at the lower end of the swing arm (26); An inert gas blowing pipe (17) connected to the periphery of the first mounting ring (16); The sorting mechanism includes a cylindrical part (27) horizontally and fixedly connected to the lower end of the swing arm (26), two sliding pins (31) are slidably penetrated through both ends of the cylindrical part (27), and a sorting frame (30) is fixedly sleeved at one end of the sliding pin (31) protruding out of the cylindrical part (27); At the relative ends of the two sorting frames (30), a sorting piece (28) is perpendicularly fixedly connected to each, an inserting slot piece (29) is arranged at the lower end of the sorting piece (28), and the thickness dimension of the inserting slot piece (29) is smaller than the thickness dimension of the sorting piece (28); A separating driving assembly is arranged in the cylindrical part (27), and the separating driving assembly is used for driving the two sorting frames (30) to move in a direction away from each other.

2. The cutting device for foam according to claim 1, characterized in that, Synchronous belt wheels are rotatably connected to the four corners at the top of the frame (1), two of the synchronous belt wheels located on both sides of the moving direction of the moving beam (4) jointly wind a synchronous belt (5), and the two ends in the length direction of the moving beam (4) are respectively fixedly connected to the two synchronous belts (5), two of the synchronous belt wheels corresponding to both sides in the length direction of the moving beam (4) and located on the same side of the frame (1) are connected by a transmission rod (7), and one of the synchronous belt wheels is driven to rotate by a first servo motor (6) installed on the top of the frame (1).

3. A cutting device for foam according to claim 1, characterized in that, A second servo motor (9) is installed on the top of the moving beam (4), a lead screw (10) is horizontally rotatably connected to the top of the moving beam (4), the second servo motor (9) is drivingly connected to the lead screw (10), and the lead screw (10) is threadedly penetrated through the mounting seat (13).

4. A cutting device for foam, characterized in that, according to claim 1 The stock placing mechanism includes a lifting frame (2) arranged in the middle of the frame (1), a plurality of strip-shaped pointed plates (3) are arranged at the top of the lifting frame (2), a plurality of rotating screws (8) are vertically rotatably connected to the frame (1), a lifting bracket (14) is threadedly sleeved on the periphery of the rotating screw (8), the upper end of the lifting bracket (14) is connected to the lifting frame (2), and a third servo motor (15) is installed on the frame (1), and the third servo motor (15) drives the plurality of rotating screws (8) to rotate synchronously through a transmission member.

5. A cutting device for foam, characterized in that, according to claim 1 A second mounting ring (20) is mounted on the periphery of the laser (22); a movable hinge seat (21) is hingedly connected to the periphery of the second mounting ring (20); a finger cylinder (23) is mounted on the movable hinge seat (21); a cylinder rod of the finger cylinder (23) is fixedly connected to a connecting block (24); a hinge rod (25) is fixedly connected to the surface of the swing arm (26); an end of the hinge rod (25) away from the swing arm (26) is hingedly connected to the connecting block (24).

6. The cutting device for foam according to claim 5, characterized in that, The first mounting ring (16) and the second mounting ring (20) are both rotatably connected to the periphery of the laser (22), and the periphery of the second mounting ring (20) is provided with an angle adjustment unit.

7. The cutting device for foam according to claim 6, characterized in that, The angle adjustment unit comprises a bolt mounting block (19) fixedly connected to the periphery of the second mounting ring (20), a fastening bolt (18) being threadedly penetrated horizontally through the outer wall of the bolt mounting block (19), the fastening bolt (18) being pressed against the periphery of the laser (22) to lock and stop the second mounting ring (20).

8. A cutting device for foam according to claim 7, characterized in that The expelling drive assembly comprises a magnetic slider (32) fixedly sleeved on the other end of the sliding pin (31); a sliding cavity for the magnetic slider (32) to slide freely is provided in the columnar portion (27); an electromagnet (33) is provided in the sliding cavity; the electromagnet (33) is located between the two magnetic sliders (32); and an elastic member (34) is provided between the electromagnet (33) and the two magnetic sliders (32); the elastic member (34) imparts potential energy to the magnetic slider (32) to move in a direction away from the electromagnet (33).

9. A foam cutting process, applied to the cutting device described in any one of claims 1 to 8, characterized in that, include: The foam to be cut is placed flat on the material shelf mechanism, and the movable beam (4) moves on the frame (1) to move the laser (22) and the laser head (12) to the processing position; The laser (22) is started, so that the laser head (12) begins to perform laser cutting on the surface of the foam. When a fine slit is cut on the surface of the foam, the swing arm (26) swings downward, and the dividing mechanism is inserted into the fine slit, and then the upper side of the fine slit is opened, so that the width of the upper side of the fine slit is greater than the width of the lower side. The external inert gas delivery device delivers the inert gas to the inert gas blowing pipe (17), and then the inert gas blowing pipe (17) blows the inert gas toward the fine crack formed at the cutting portion of the laser head (12). Since the distribution mechanism expands the fine crack formed by the processing, the inert gas can smoothly enter the fine crack formed at the cutting portion, and then the end face of the cutting portion is protected by the inert gas.

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