A fireproof and heat-insulating air duct and its manufacturing process and equipment

Abstract

This invention discloses a fireproof and heat-insulating air duct, its manufacturing process, and equipment in the field of heat-insulated air duct technology. It includes a second interlocking pipe, with an inner cavity containing a first interlocking pipe. One end of the first interlocking pipe has a sub-flange connecting frame, and the other end has a female flange connecting frame. The sub-flange connecting frame has four corner butt blocks, and each pair of sub-flange blocks has a second butt block. The female flange connecting frame has four corner butt grooves, and each pair of sub-flange grooves has a second butt groove. The two ends of the second interlocking pipe are fixedly connected to the sub-flange connecting frame and the female flange connecting frame, respectively. Flanges 1 and 2 are fixedly connected to both ends of the second interlocking pipe. The cavity formed between the second and first interlocking pipes is tightly filled with aluminum silicate fiber blankets, rock wool, or glass wool, solving the problem of inconsistent processing and installation of double-layer air ducts.

Description

Technical Field

[0001] This invention relates to the field of thermal insulation duct technology, specifically to a fireproof thermal insulation duct and its manufacturing process and equipment. Background Technology

[0002] When installing protective air ducts, multiple sections of duct are spliced ​​together using bolts to form an air duct channel. The existing air duct channel is single-layered, and single-layered air duct channels have limited thermal insulation and fire resistance capabilities.

[0003] Double-layer ducts offer superior fire resistance and insulation, but their processing and installation are cumbersome. Installation requires additional adjustments to the inner duct's position, making the process complex. Furthermore, to ensure a seamless, integrated duct design, injection molding is typically used. During injection molding, it's difficult to eliminate air bubbles within the mold, potentially damaging the quality of the inner duct. Additionally, to facilitate installation, interlocking components are used along the edges of the inner duct, making demolding difficult after injection molding.

[0004] Based on this, the present invention designs a fireproof and heat-insulating air duct and its production process and equipment to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a fireproof and heat-insulating air duct, as well as a manufacturing process and equipment, to solve the problem of inconsistent processing and installation of double-layer air ducts.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fireproof and heat-insulating air duct, comprising a second interlocking pipe, wherein an first interlocking pipe is disposed within the inner cavity of the second interlocking pipe, a sub-flange connecting frame is provided at one end of the first interlocking pipe, a female flange connecting frame is provided at the other end of the first interlocking pipe, a first connecting block is provided at each of the four corners of the sub-flange connecting frame, a second connecting block is provided between each pair of first connecting blocks, a first connecting groove is provided at each of the four corners of the female flange connecting frame, and a second connecting groove is provided between each pair of first connecting grooves; the first interlocking pipe, the sub-flange connecting frame, the female flange connecting frame, the first connecting block, the second connecting block, the first connecting groove, and the second connecting groove are integrally formed by a mold; both ends of the second interlocking pipe are fixedly connected to the sub-flange connecting frame and the female flange connecting frame, respectively, and both ends of the second interlocking pipe are fixedly connected to a first flange and a second flange, respectively; the cavity formed between the second interlocking pipe and the first interlocking pipe is tightly filled with aluminum silicate fiber blanket, rock wool, or glass wool.

[0007] A production equipment for fireproof and heat-insulating air ducts includes a lower mounting base, which is cross-shaped. Side mounting plates are symmetrically mounted on both sides of the upper surface of the lower mounting base. Multiple threaded components are rotatably mounted on each side mounting plate, and each threaded component is threaded with an external threaded rod. A rear mold is fixedly mounted on one side of the external threaded rod, and a front mold is fixedly mounted on the external threaded rod away from the rear mold. Fixing plates are symmetrically mounted on the upper surface of the lower mounting base corresponding to the side mounting plates. An upper connecting plate is fixedly mounted on the upper end of each fixing plate, and an anti-foaming component is provided on the upper end of the upper connecting plate. The fixing plates are slidably connected to the lower mounting base. A left mold is fixedly mounted on one side of the fixing plate, and a right mold is fixedly mounted on the fixing plate away from the left mold. After the front and rear molds are closed, they wrap around the closed left and right molds, forming a molding cavity. Installation grooves are provided inside both the left and right molds, and vibration damping components are provided within these grooves.

[0008] As a further embodiment of the present invention, the vibration damping component includes an internally threaded rod, which is fixedly installed in the mounting groove. The mounting groove is a U-shaped groove. Multiple sets of internally threaded rods are provided, with two sets on each side of the U-shaped groove. A movable plate is provided on each pair of internally threaded rods. The movable plate is slidably connected in the mounting groove. A striking plate is provided on the side of the movable plate near the forming cavity. A left internal toothed plate is fixedly installed on the striking plate. A right internal toothed plate is provided on the side of the striking plate corresponding to the left internal toothed plate. The left and right internal toothed plates are located on both sides of the internally threaded rod and are arranged opposite to each other. A gear is rotatably installed on the movable plate corresponding to the position of the internally threaded rod. The gear is threadedly connected to the internally threaded rod. A half-amplitude gear is rotatably installed on the movable plate. The half-amplitude gear meshes with the gear and alternately meshes with the left and right internal toothed plates.

[0009] As a further embodiment of the present invention, the defoaming component includes a driven gear, which is rotatably mounted on the upper surface of the upper connecting plate. A driving gear is rotatably mounted on the upper surface of the upper connecting plate, and the driving gear meshes with the driven gear. A grouting pipe is fixedly mounted on the lower surface of the upper connecting plate. An upper feed hopper is fixedly mounted on the lower end of the driven gear, and the lower end of the upper feed hopper extends to the grouting pipe. A lower feed hopper is fixedly mounted inside the grouting pipe corresponding to the lower part of the upper feed hopper. Both the upper feed hopper and the lower feed hopper are provided with through grooves.

[0010] As a further embodiment of the present invention, an upper transmission member is provided between the threaded parts on the same side, and a connecting rod is rotatably mounted on the upper surface of the lower mounting base corresponding to one side of the side mounting plate. A lower transmission member is provided at the lower end of the connecting rod, and a lower bevel gear is fixedly mounted at the upper end of the connecting rod. An upper bevel gear is rotatably mounted on the side mounting plate, and the upper bevel gear meshes with the lower bevel gear.

[0011] As a further embodiment of the present invention, a left drive gear is fixedly installed on one side of the upper bevel gear, and an upper gear is fixedly installed on a threaded part near the left drive gear. The upper gear meshes with the left drive gear. Left toothed plates are fixedly installed on both sides of the fixing plate near the left mold, and the left toothed plates mesh with the left drive gear.

[0012] As a further embodiment of the present invention, right toothed plates are fixedly installed on both sides of the fixing plate near the right mold. A right drive gear is rotatably installed on the side mounting plate near the right mold. The right drive gear meshes with the right toothed plate. A side transmission component is provided on the right drive gear. A transmission gear is provided on both the side transmission component away from the right drive gear and the left drive gear. Two sets of transmission gears are provided and mesh with each other.

[0013] A manufacturing process for a fireproof and heat-insulating air duct, comprising the following steps:

[0014] S1. Using fireproof and heat-insulating air duct production equipment, manufacture one-piece molded seam joint pipes;

[0015] S2. Take one bite joint tube 2 and one bite joint tube 1. Wrap the surface of bite joint tube 1 with one of aluminum silicate fiber blanket, rock wool or glass wool. Then, completely embed bite joint tube 1 into bite joint tube 2. Finally, firmly connect the bite joint of bite joint tube 2 and bite joint tube 1 at the joint.

[0016] S3. Fix flange one and flange two to both ends of the bite joint pipe two with screws respectively.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. In this invention, when splicing ducts, the new set of duct mother flange connection frames are connected to the previous set of duct daughter flange connection frames, so that the first docking groove on the new set of duct mother flange connection frames is embedded into the first docking block on the previous set of duct daughter flange connection frames, and the second docking groove is embedded into the second docking block, thereby snapping the new set of ducts to the previous set of ducts. Then, the flange one and flange two are fixedly connected by bolts, thereby fixing and installing the two sets of ducts. During the installation process, the first and second interlocking pipes can be installed simultaneously, and the daughter flange connection frames and mother flange connection frames at both ends of the first interlocking pipe can assist in the positioning and adjustment of the ducts, ensuring that the docking position between the ducts is more accurate and precise during duct installation. The two ends of the first interlocking pipe are welded to the inner wall of the second interlocking pipe to form a cavity. Filling the cavity with aluminum silicate fiber blanket, rock wool, or glass wool can increase the heat insulation and fire resistance of the pipes.

[0019] 2. In this invention, the device is provided with a front mold, a rear mold, a left mold, and a right mold to form a molding cavity. The front mold and the rear mold form the outer periphery of the mold, and the left mold and the right mold form the inner periphery of the mold. The inner and outer parts together form the molding cavity, so that the sub-flange connecting frame and the female flange connecting frame are integrally formed with the bite-jointed pipe. During the demolding process, the front mold, the rear mold, the left mold, and the right mold spread out in different directions, so that the formed bite-jointed pipe can be demolded quickly without being obstructed by the multiple sets of folded surfaces of the mold. This allows the finished bite-jointed pipe to be demolded quickly. During processing, the vibration elimination components inside the left mold and the right mold continuously move and vibrate to eliminate air bubbles on the inner wall of the molding cavity, making the surface of the finished bite-jointed pipe smoother, thereby improving the quality of the bite-jointed pipe.

[0020] 3. In this invention, the rotation of the connecting rod drives the lower bevel gear to rotate, which in turn drives the upper bevel gear meshing with it to rotate. The upper bevel gear then drives the upper gear to rotate, which in turn drives the threaded component to rotate. The rotation of the threaded component interacts with the external threaded rod, causing the external threaded rods on both sides to move relative to each other, thus bringing the rear mold and the front mold closer together. Simultaneously, the rotation of the upper gear drives the left drive gear to rotate, which in turn interacts with the left gear to drive the left mold to move to the middle position of the lower mounting seat. The left drive gear drives the transmission gear to rotate, which in turn drives the side transmission component to rotate and drives the right drive gear to rotate. The rotation of the right drive gear interacts with the right gear plate, thus driving the right mold to move towards the left mold, thereby automatically achieving mold closing. The rotation of the connecting rod drives the left mold, right mold, front mold, and rear mold to move simultaneously. Mold closing and mold separation are achieved under the action of a single drive source, avoiding the trouble of manual mold closing and separation and improving demolding efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the duct structure of the present invention. Figure 1 ;

[0022] Figure 2 for Figure 1 A partial structural diagram at point A in the middle;

[0023] Figure 3 This is a schematic diagram of the duct structure of the present invention. Figure 2 ;

[0024] Figure 4 This is a schematic diagram of the right side of a production equipment for seam-jointed pipes.

[0025] Figure 5 A cross-sectional view of the structure of a production equipment for seam-jointed pipes. Figure 1 ;

[0026] Figure 6 For the present invention Figure 5 A partial structural diagram at point B;

[0027] Figure 7 This is a schematic diagram of the left side structure of a production equipment for seam-jointed pipes.

[0028] Figure 8 For the present invention Figure 7 A partial structural diagram at point C;

[0029] Figure 9 A cross-sectional view of the structure of a production equipment for seam-jointed pipes. Figure 2 ;

[0030] Figure 10 For the present invention Figure 9 A partial structural diagram at point D;

[0031] Figure 11 This is a flowchart illustrating the use of this invention.

[0032] The attached diagram lists the components represented by each number as follows:

[0033] 1. Two-piece interlocking pipe; 2. One-piece interlocking pipe; 3. Sub-flange connection frame; 4. Female flange connection frame; 5. One-piece mating block; 6. Two-piece mating block; 7. One-piece mating groove; 8. Two-piece mating groove; 9. One-piece flange; 10. Two-piece flange; 11. Lower mounting base; 12. Side mounting plate; 13. Lower transmission component; 14. Threaded component; 15. Rear mold; 16. External threaded rod; 17. Upper bevel gear; 18. Lower bevel gear; 19. Connecting rod; 20. Fixing plate; 21. Front mold; 22. Left gear plate; 23. Right gear plate; 2 4. Left mold; 25. Right mold; 26. Driven gear; 27. Drive gear; 28. Upper gear; 29. ​​Left drive gear; 30. Transmission gear; 31. Side transmission component; 32. Right drive gear; 33. Upper transmission component; 34. Mounting groove; 35. Internal threaded rod; 36. Molding cavity; 37. Grouting pipe; 38. Upper feed hopper; 39. Lower feed hopper; 40. Striking plate; 41. Movable plate; 42. Left internal gear plate; 43. Half-width gear; 44. Gear component; 45. Right internal gear plate; 46. Upper connecting plate. Detailed Implementation

[0034] Please see Figures 1-11 This invention provides a technical solution: a fireproof and heat-insulating air duct, including a second interlocking pipe 1, an interlocking pipe 2 inside the second interlocking pipe 1, a sub-flange connecting frame 3 at one end of the first interlocking pipe 2, a female flange connecting frame 4 at the other end of the first interlocking pipe 2, a first docking block 5 at each of the four corners of the sub-flange connecting frame 3, a second docking block 6 between each pair of first docking blocks 5, a first docking groove 7 at each of the four corners of the female flange connecting frame 4, a second docking groove 8 between each pair of first docking grooves 7, the first interlocking pipe 2, the sub-flange connecting frame 3, the female flange connecting frame 4, the first docking block 5, the second docking block 6, the first docking groove 7, and the second docking groove 8 are integrally formed by a mold; the two ends of the second interlocking pipe 1 are fixedly connected to the sub-flange connecting frame 3 and the female flange connecting frame 4 respectively, and the two ends of the second interlocking pipe 1 are fixedly connected to the flange 9 and the second flange 10 respectively, and the cavity formed between the second interlocking pipe 1 and the first interlocking pipe 2 is tightly filled with aluminum silicate fiber blanket, rock wool, or glass wool.

[0035] During operation, the sub-flange connection frame 3 mates with the mother flange connection frame 4. The mating groove 7 on the sub-flange connection frame 3 fits into the mating block 5 on the mother flange connection frame 4, and the mating groove 8 on the sub-flange connection frame 3 fits into the mating block 6 on the mother flange connection frame 4. The two ends of the interlocking pipe 2 are welded to the inner wall of the interlocking pipe 1, forming a cavity. Filling the cavity with aluminum silicate fiber blanket, rock wool, or glass wool can increase the insulation and fire resistance of the pipe. When splicing ducts, the new set of duct mother flange connection frames 4 is connected to the sub-flange connection frames 3 of the previous set of ducts, so that the new set of duct mother flange connection frames 4... The first docking groove 7 is embedded into the first docking block 5 on the sub-flange connection frame 3 of the previous set of air ducts, while the second docking groove 8 is embedded into the second docking block 6, thereby snapping the new set of air ducts with the previous set of air ducts. Then, the two sets of air ducts are fixedly connected by bolts through the flange 9 and the flange 10, thus fixing the two sets of air ducts in place. During the installation process, the first interlocking pipe 2 and the second interlocking pipe 1 can be installed at the same time, and the sub-flange connection frame 3 and the mother flange connection frame 4 at both ends of the first interlocking pipe 2 can assist in the positioning and adjustment of the air ducts, ensuring that the docking position between the air ducts is more accurate and precise during the installation of the air ducts.

[0036] In this invention, when splicing ducts, the new set of duct mother flange connection frame 4 is connected to the sub-flange connection frame 3 of the previous set of ducts, so that the docking groove 7 on the new set of duct mother flange connection frame 4 is embedded into the docking block 5 on the sub-flange connection frame 3 of the previous set of ducts, and the docking groove 8 is embedded into the docking block 6, thereby snapping the new set of ducts to the previous set of ducts. Then, the flange 9 and flange 10 are fixedly connected by bolts, thereby fixing the two sets of ducts in place. During the installation process, the interlocking pipe 2 and the interlocking pipe 1 can be installed simultaneously, and the sub-flange connection frame 3 and mother flange connection frame 4 at both ends of the interlocking pipe 2 can assist in the positioning and adjustment of the duct, ensuring that the docking position between the ducts is more accurate and precise during duct installation. The two ends of the interlocking pipe 2 are welded to the inner wall of the interlocking pipe 1, forming a cavity filled with aluminum silicate fiber blanket, rock wool, or glass wool, which can increase the heat insulation and fire resistance of the pipe.

[0037] A production equipment for fireproof and heat-insulating air ducts includes a lower mounting base 11, which is cross-shaped. Side mounting plates 12 are symmetrically mounted on both sides of the upper surface of the lower mounting base 11. Multiple threaded components 14 are rotatably mounted on each side mounting plate 12. Each threaded component 14 is threaded with an external threaded rod 16. A rear mold 15 is fixedly mounted on one side of the external threaded rod 16, and a front mold 21 is fixedly mounted on the side of the external threaded rod 16 away from the rear mold 15. Fixing plates 20 are symmetrically mounted on the upper surface of the lower mounting base 11 between the side mounting plates 12. An upper connecting plate 46 is fixedly installed on the upper end of the fixed plate 20. An anti-foaming component is provided on the upper end of the upper connecting plate 46. The fixed plate 20 is slidably connected to the lower mounting base 11. A left mold 24 is fixedly installed on one side of the fixed plate 20, and a right mold 25 is fixedly installed on the side of the fixed plate 20 away from the left mold 24. After the front mold 21 and the rear mold 15 are closed, they wrap around the closed left mold 24 and right mold 25 and form a molding cavity 36 with them. An installation groove 34 is opened in both the left mold 24 and the right mold 25. A vibration elimination component is provided in the installation groove 34.

[0038] During operation, because the bite-joint tube 2 has a daughter flange connection frame 3 and a mother flange connection frame 4 at both ends, the long rectangular bite-joint tube 2 has multiple sets of grooves and protrusions at both ends. This results in many folded surfaces inside the injection mold of the bite-joint tube 2, making demolding inconvenient, and air bubbles are prone to appear at the folds. This leads to air bubbles on the surface of the injection molded product, resulting in poor product quality. When processing the bite-joint tube 2, the device is equipped with a front mold 21, a rear mold 15, a left mold 24, and a right mold 25 to form a molding cavity 36. The front mold 21 and the rear mold 15 form the outer periphery of the mold, and the left mold 24 and the right mold 25 form the inner periphery of the mold. The forming cavity 36 is formed so that the sub-flange connecting frame 3 and the mother flange connecting frame 4 are integrally formed with the bite-joint pipe 2. During the demolding process, the front mold 21, rear mold 15, left mold 24 and right mold 25 are dispersed in different directions, so that the formed bite-joint pipe 2 can be demolded quickly without being obstructed by the multiple sets of folded surfaces of the mold. This allows the finished bite-joint pipe 2 to be demolded quickly. During processing, the vibration elimination components inside the left mold 24 and right mold 25 move and vibrate continuously to eliminate air bubbles on the inner wall of the forming cavity 36, making the surface of the finished bite-joint pipe 2 smoother, thereby improving the quality of the bite-joint pipe 2.

[0039] In this invention, the device is provided with a front mold 21, a rear mold 15, a left mold 24, and a right mold 25 to form a molding cavity 36. The front mold 21 and the rear mold 15 form the outer periphery of the mold, and the left mold 24 and the right mold 25 form the inner periphery of the mold. The inner and outer parts together form the molding cavity 36, which allows the sub-flange connecting frame 3 and the female flange connecting frame 4 to be integrally formed with the bite-joint pipe 2. During the demolding process, the front mold 21, the rear mold 15, the left mold 24, and the right mold 25 disperse in different directions, allowing the formed bite-joint pipe 2 to be demolded quickly without being obstructed by the multiple folded surfaces of the mold. This allows the finished bite-joint pipe 2 to be demolded quickly. During processing, the vibration elimination components inside the left mold 24 and the right mold 25 continuously move and vibrate to eliminate air bubbles on the inner wall of the molding cavity 36, making the surface of the finished bite-joint pipe 2 smoother, thereby improving the quality of the bite-joint pipe 2.

[0040] As a further embodiment of the present invention, the vibration damping component includes an internally threaded rod 35, which is fixedly installed in a mounting groove 34. The mounting groove 34 is a U-shaped groove, and multiple sets of internally threaded rods 35 are provided, with two sets on each side of the U-shaped groove. A movable plate 41 is provided on each pair of internally threaded rods 35, and the movable plate 41 is slidably connected in the mounting groove 34. A striking plate 40 is provided on the side of the movable plate 41 near the forming cavity 36, and a left internal toothed plate 42 is fixedly installed on the striking plate 40. A right internal gear plate 45 is provided on the side of the plate 40 corresponding to the left internal gear plate 42. The left internal gear plate 42 and the right internal gear plate 45 are provided on both sides of the internal thread rod 35 and are arranged opposite to each other. A gear component 44 is rotatably installed on the movable plate 41 corresponding to the position of the internal thread rod 35. The gear component 44 is threadedly connected to the internal thread rod 35. A half-width gear 43 is rotatably installed on the movable plate 41. The half-width gear 43 meshes with the gear component 44. The half-width gear 43 alternately meshes with the left internal gear plate 42 and the right internal gear plate 45.

[0041] During operation, the micro motor drives the half-amplitude gear 43 to rotate. The rotation of the half-amplitude gear 43 alternately meshes with the left internal gear plate 42 and the right internal gear plate 45, thereby driving the striking plate 40 to reciprocate on the movable plate 41. This causes the striking plate 40 to continuously strike the outside of the mounting groove 34, thereby causing the striking plate 40 to vibrate the molding cavity 36 to eliminate any air bubbles that may exist on the inner wall of the molding cavity 36. The rotation of the half-amplitude gear 43 drives the gear component 44 to rotate. The rotation of the gear component 44 interacts with the internal thread rod 35, thereby driving the gear component 44 to move on the internal thread rod 35, which in turn drives the movable plate 41 to move on the internal thread rod 35. The movement of the movable plate 41 causes the striking plate 40 to move within the mounting groove 34, so that the striking plate 40 strikes the molding cavity 36 from beginning to end, eliminating any air bubbles that may exist on the inner wall of the molding cavity 36 through vibration.

[0042] As a further embodiment of the present invention, the defoaming component includes a driven gear 26, which is rotatably mounted on the upper surface of the upper connecting plate 46. A driving gear 27 is rotatably mounted on the upper surface of the upper connecting plate 46, and the driving gear 27 meshes with the driven gear 26. A grouting pipe 37 is fixedly mounted on the lower surface of the upper connecting plate 46. An upper feed hopper 38 is fixedly mounted on the lower end of the driven gear 26, and the lower end of the upper feed hopper 38 extends to the grouting pipe 37. A lower feed hopper 39 is fixedly mounted inside the grouting pipe 37 corresponding to the lower part of the upper feed hopper 38. Both the upper feed hopper 38 and the lower feed hopper 39 are provided with through grooves.

[0043] During operation, when the mold is closed, the front mold 21 and the rear mold 15 fit together and abut against the two sides of the injection pipe 37. The raw material enters the molding cavity 36 from the injection pipe 37. During the introduction process, the rotating motor drives the drive gear 27 to rotate. The rotation of the drive gear 27 drives the driven gear 26 to rotate. The rotation of the driven gear 26 drives the upper feed hopper 38 to rotate. The rotation of the upper feed hopper 38 generates friction with the lower feed hopper 39, which grinds the feed slurry and eliminates air bubbles in the slurry, so that the raw material entering the injection pipe 37 has the fewest air bubbles.

[0044] As a further embodiment of the present invention, an upper transmission member 33 is provided between the threaded parts 14 on the same side, and a connecting rod 19 is rotatably installed on the upper surface of the lower mounting base 11 corresponding to one side of the side mounting plate 12. A lower transmission member 13 is provided at the lower end of the connecting rod 19, and a lower bevel gear 18 is fixedly installed at the upper end of the connecting rod 19. An upper bevel gear 17 is rotatably installed on the side mounting plate 12, and the upper bevel gear 17 meshes with the lower bevel gear 18.

[0045] As a further embodiment of the present invention, a left drive gear 29 is fixedly installed on one side of the upper bevel gear 17, and an upper gear 28 is fixedly installed on the threaded part 14 near the left drive gear 29. The upper gear 28 meshes with the left drive gear 29. A left toothed plate 22 is fixedly installed on both sides of the fixing plate 20 near the left mold 24. The left toothed plate 22 meshes with the left drive gear 29.

[0046] As a further embodiment of the present invention, a right toothed plate 23 is fixedly installed on both sides of the fixing plate 20 near the right mold 25. A right drive gear 32 is rotatably installed on the end of the side mounting plate 12 near the right mold 25. The right drive gear 32 meshes with the right toothed plate 23. A side transmission member 31 is provided on the right drive gear 32. A transmission gear 30 is provided on the end of the side transmission member 31 away from the right drive gear 32 and on the left drive gear 29. Two sets of transmission gears 30 are provided and mesh with each other.

[0047] During operation, the servo motor drives the connecting rod 19 on one side to rotate. The rotation of the connecting rod 19 drives the connecting rods 19 on both sides to rotate through the lower transmission component 13. The rotation of the connecting rod 19 drives the lower bevel gear 18 to rotate. The rotation of the lower bevel gear 18 drives the upper bevel gear 17 that meshes with it to rotate. The rotation of the upper bevel gear 17 drives the upper gear 28 to rotate. The rotation of the upper gear 28 interacts with the upper transmission component 33 to drive the threaded component 14 to rotate. The rotation of the threaded component 14 interacts with the external threaded rod 16, causing the external threaded rods 16 on both sides to move relative to each other. This causes the rear mold 15 and the front mold 21 to move closer to each other. At the same time, the rotation of the upper gear 28 drives the left drive gear 29 to rotate. The rotation of the left drive gear 29 interacts with the left gear to drive the left mold 24 to move to the middle position of the lower mounting base 11. The left drive gear 29 drives the transmission gear 30 to rotate, thereby driving the side transmission component 31 to rotate and driving the right drive gear 32 to rotate. The rotation of the right drive gear 32 interacts with the right gear plate 23, thereby driving the right mold 25 to move towards the left mold 24, thus automatically realizing mold closing.

[0048] In this invention, the rotation of the connecting rod 19 drives the lower bevel gear 18 to rotate, which in turn drives the upper bevel gear 17 to rotate. The upper bevel gear 17 then drives the upper gear 28 to rotate. The rotation of the upper gear 28 interacts with the upper transmission component 33 to drive the threaded component 14 to rotate. The rotation of the threaded component 14 interacts with the external threaded rod 16, causing the external threaded rods 16 on both sides to move relative to each other. This brings the rear mold 15 and the front mold 21 closer together. Simultaneously, the rotation of the upper gear 28 drives the left drive gear 29 to rotate, and the rotation of the left drive gear 29 interacts with the left gear. The action drives the left mold 24 to move to the middle position of the mounting base 11. The left drive gear 29 drives the transmission gear 30 to rotate, thereby driving the side transmission component 31 to rotate and driving the right drive gear 32 to rotate. The rotation of the right drive gear 32 interacts with the right gear plate 23, thereby driving the right mold 25 to move towards the left mold 24, thus automatically realizing mold closing. The rotation of the connecting rod 19 drives the left mold 24, right mold 25, front mold 21 and rear mold 15 to move simultaneously. Under the action of a single drive source, mold closing and mold separation are realized, avoiding the trouble of manual mold closing and mold separation, and improving demolding efficiency.

[0049] A manufacturing process for a fireproof and heat-insulating air duct, comprising the following steps:

[0050] S1. Using the production equipment for the fireproof and heat-insulating air duct, manufacture an integrally formed seam-jointed pipe 2;

[0051] S2. Take one bite joint tube 2 and one bite joint tube 1. Wrap the surface of bite joint tube 1 with one of aluminum silicate fiber blanket, rock wool or glass wool. Then, completely embed bite joint tube 1 into bite joint tube 2. Finally, firmly connect the bite joints of bite joint tube 2 and bite joint tube 1.

[0052] S3. Fix flange 9 and flange 10 to both ends of the interlocking pipe 1 using screws.

Claims

1. A production equipment for a fireproof and heat-insulating air duct, used to manufacture a fireproof and heat-insulating air duct, the fireproof and heat-insulating air duct including a second seam pipe (1), the inner cavity of the second seam pipe (1) being provided with a first seam pipe (2), one end of the first seam pipe (2) being provided with a sub-flange connecting frame (3), the other end of the first seam pipe (2) being provided with a female flange connecting frame (4), the four corners of the sub-flange connecting frame (3) being provided with a first connecting block (5), and each pair of first connecting blocks (5) being provided with a second connecting block (6), the four corners of the female flange connecting frame (4) being provided with a first connecting groove (7), and each pair of first connecting grooves (7) being provided with a second connecting block (6). There is a second docking groove (8). The first interlocking pipe (2), the sub-flange connecting frame (3), the mother flange connecting frame (4), the first docking block (5), the second docking block (6), the first docking groove (7) and the second docking groove (8) are integrally formed by the mold. The two ends of the first interlocking pipe (2) are fixedly connected to the sub-flange connecting frame (3) and the mother flange connecting frame (4) respectively. The two ends of the second interlocking pipe (1) are fixedly connected to the first flange (9) and the second flange (10) respectively. The cavity formed between the second interlocking pipe (1) and the first interlocking pipe (2) is tightly filled with aluminum silicate fiber blanket, rock wool or glass wool. The production equipment for the fireproof and heat-insulating air duct is characterized in that: The system includes a lower mounting base (11), which is cross-shaped. Side mounting plates (12) are symmetrically mounted on both sides of the upper surface of the lower mounting base (11). Multiple threaded components (14) are rotatably mounted on each side mounting plate (12). Each threaded component (14) is internally threaded with an external threaded rod (16). A rear mold (15) is fixedly mounted on one side of the external threaded rod (16), and a front mold (21) is fixedly mounted on the side of the external threaded rod (16) away from the rear mold (15). Fixing plates (20) are symmetrically mounted on the upper surface of the lower mounting base (11) corresponding to the side mounting plates (12). The upper surface of the fixing plates (20) has... An upper connecting plate (46) is fixedly installed at one end. An anti-foaming component is provided at the upper end of the upper connecting plate (46). The fixed plate (20) is slidably connected to the lower mounting base (11). A left mold (24) is fixedly installed on one side of the fixed plate (20), and a right mold (25) is fixedly installed on the side of the fixed plate (20) away from the left mold (24). After the front mold (21) and the rear mold (15) are closed, they wrap around the closed left mold (24) and right mold (25) and form a molding cavity (36) with them. An installation groove (34) is provided in both the left mold (24) and the right mold (25). A vibration elimination component is provided in the installation groove (34). The vibration damping component includes an internally threaded rod (35), which is fixedly installed in the mounting groove (34). The mounting groove (34) is a U-shaped groove. Multiple sets of internally threaded rods (35) are provided, with two sets on each side of the U-shaped groove. A movable plate (41) is provided on each pair of internally threaded rods (35). The movable plate (41) is slidably connected to the mounting groove (34). A striking plate (40) is provided on the side of the movable plate (41) closest to the forming cavity (36). A left internal toothed plate (42) is fixedly installed on the striking plate (40). A corresponding internal toothed plate (42) is provided on the striking plate (40). A right internal gear plate (45) is provided on one side of the left internal gear plate (42). The left internal gear plate (42) and the right internal gear plate (45) are provided on both sides of the internal thread rod (35) and are arranged opposite to each other. A gear component (44) is rotatably installed on the movable plate (41) corresponding to the position of the internal thread rod (35). The gear component (44) is threadedly connected to the internal thread rod (35). A half-amplitude gear (43) is rotatably installed on the movable plate (41). The half-amplitude gear (43) meshes with the gear component (44). The half-amplitude gear (43) alternately meshes with the left internal gear plate (42) and the right internal gear plate (45). The defoaming component includes a driven gear (26), which is rotatably mounted on the upper surface of the upper connecting plate (46). A driving gear (27) is rotatably mounted on the upper surface of the upper connecting plate (46), and the driving gear (27) meshes with the driven gear (26). A grouting pipe (37) is fixedly mounted on the lower surface of the upper connecting plate (46). An upper feed hopper (38) is fixedly mounted on the lower end of the driven gear (26), and the lower end of the upper feed hopper (38) extends to the grouting pipe (37). A lower feed hopper (39) is fixedly mounted in the grouting pipe (37) corresponding to the lower part of the upper feed hopper (38). Both the upper feed hopper (38) and the lower feed hopper (39) are provided with through grooves.

2. The production equipment for a fireproof and heat-insulating air duct according to claim 1, characterized in that: An upper transmission member (33) is provided between the threaded parts (14) on the same side. A connecting rod (19) is rotatably installed on the upper surface of the lower mounting base (11) corresponding to one side of the side mounting plate (12). A lower transmission member (13) is provided at the lower end of the connecting rod (19). A lower bevel gear (18) is fixedly installed at the upper end of the connecting rod (19). An upper bevel gear (17) is rotatably installed on the side mounting plate (12). The upper bevel gear (17) meshes with the lower bevel gear (18).

3. The production equipment for a fireproof and heat-insulating air duct according to claim 2, characterized in that: A left drive gear (29) is fixedly installed on one side of the upper bevel gear (17), and an upper gear (28) is fixedly installed on the threaded part (14) on the side close to the left drive gear (29). The upper gear (28) meshes with the left drive gear (29). A left tooth plate (22) is fixedly installed on both sides of the fixing plate (20) on the side close to the left mold (24). The left tooth plate (22) meshes with the left drive gear (29).

4. The production equipment for a fireproof and heat-insulating air duct according to claim 3, characterized in that: Right toothed plates (23) are fixedly installed on both sides of the fixing plate (20) near the right mold (25). A right drive gear (32) is rotatably installed on the side mounting plate (12) near the right mold (25). The right drive gear (32) meshes with the right toothed plate (23). A side transmission component (31) is provided on the right drive gear (32). A transmission gear (30) is provided on the side transmission component (31) away from the right drive gear (32) and on the left drive gear (29). There are two sets of transmission gears (30) that mesh with each other.

5. A manufacturing process for a fireproof and heat-insulating air duct, used to manufacture the fireproof and heat-insulating air duct as described in claim 1, characterized in that: The process includes the following steps: S1. Using the production equipment of the fireproof and heat-insulating air duct described in claim 2, manufacture an integrally formed seam joint pipe (2); S2. Take one bite joint tube 2 (1) and one bite joint tube 1 (2). Wrap the surface of bite joint tube 1 (2) with aluminum silicate fiber blanket, rock wool or glass wool. Then, completely embed bite joint tube 1 (2) into bite joint tube 2 (1). Then, firmly connect the bite joints of bite joint tube 2 (1) and bite joint tube 1 (2). S3. Fix flange one (9) and flange two (10) to both ends of the bite joint pipe two (1) with screws respectively.

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