A plasticizing track conveying line body for a multi-component continuous foaming production line

Abstract

The present application relates to a kind of shaping track conveyor line body for multi-component continuous foaming production line, including a conveying frame body, it is tunnel square frame structure, top surface and two side surfaces are closed;A main track conveyor line, it is transversely arranged in the conveying frame body in middle lower part by multiple support;Two side track conveyor lines, it is respectively longitudinally symmetrically suspended in the long side side of the main track conveyor line;Two side belt width adjusting mechanisms, it is respectively transversely symmetrically arranged in the main track conveyor line two sides by multiple first supports being arranged along the extension direction of the conveying frame body equidistantly;A steam heating mechanism, it is laid in the lower side of the main track conveyor line;The present application can be suspended to each side track conveyor line by the two side belt width adjusting mechanisms arranged, and the spacing of two side track conveyor lines can also be adjusted, so different specifications polyurethane foam board production can be adapted, and the economic investment of production party is reduced.

Description

Technical Field

[0001] This invention belongs to the field of polyurethane board foaming technology, and specifically relates to a shaped conveyor belt for a multi-component continuous foaming production line. Background Technology

[0002] Currently, the production density on the market is between 35-300 kg / m³. 3 Our polyurethane foam board products are rigid foam insulation materials made by continuously foaming multi-component materials onto fiberglass cloth. The products are suitable for various occasions requiring heat preservation and insulation, and the applicable temperature range is 80 to -250℃.

[0003] During the continuous foaming process of polyurethane board, after the unwinding of the lower layer of kraft paper, the unwinding of the middle layer of fiberglass cloth, the filling of polyurethane foaming raw materials, and the unwinding of the upper layer of kraft paper, a layered foam body is formed. The layered foam body then enters the shaping conveyor line for continuous heating and shaping.

[0004] A typical molding tracked conveyor line includes a conveyor frame, within which a main tracked conveyor line is mounted along the direction of travel of the layered foam. A heating mechanism is installed directly below the main tracked conveyor line to provide a heat source. Two side tracked conveyor lines are symmetrically fixed and suspended longitudinally along the long side of the main tracked conveyor line. The two side tracked conveyor lines are designed to keep the two sides of the layered foam flush during the molding process. However, the existing spacing between the two side tracked conveyor lines is adapted to the width of the polyurethane foam board to be produced, and the spacing is not adjustable. This cannot accommodate the production of polyurethane foam boards of different specifications, and redesigning the molding tracked conveyor line would undoubtedly greatly increase the economic investment for the manufacturer. In addition, the speed difference between the existing main tracked conveyor line and the side tracked conveyor lines can easily lead to breakage of the layered foam, resulting in waste. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies by providing a shaping conveyor belt system for multi-component continuous foaming production lines. The specific technical solution is as follows:

[0006] This invention provides a shaping track conveyor line for a multi-component continuous foaming production line, the shaping track conveyor line comprising:

[0007] A conveyor frame, which is a tunnel-type square frame structure, with its top and two sides closed;

[0008] A main tracked conveyor line is horizontally supported by multiple pillars in the lower middle part of the conveyor frame;

[0009] Two side track conveyors are symmetrically suspended longitudinally along the long side edge of the main track conveyor.

[0010] Two side belt width adjustment mechanisms are respectively mounted laterally and symmetrically on both sides of the main track conveyor line via multiple first brackets arranged at equal intervals along the extension direction of the conveyor frame. The first brackets are inverted L-shaped structures, and their horizontal parts are fixedly connected to the inner side of the conveyor frame. The side belt width adjustment mechanism is used to suspend and drive the corresponding side track conveyor line to move along the short side direction of the main track conveyor line.

[0011] A steam heating mechanism is laid directly below the main track conveyor line. The steam heating mechanism is used to heat and shape the layered foam conveyed on the main track conveyor line.

[0012] The main track conveyor is driven by a first servo motor, and the side track conveyor is driven by a second servo motor; the main track conveyor and the side track conveyor operate at the same speed.

[0013] As a preferred embodiment of the present invention, the side belt width adjustment mechanism includes a plurality of second supports longitudinally suspended on the corresponding first supports. The second supports are inverted L-shaped structures, with their horizontal portions suspended from the corresponding side track conveyor line, and their vertical portions connected to the horizontal portions of the corresponding first supports via sliding braces for lateral sliding limitation. The horizontal portions of the plurality of first supports are laterally mounted with drive components for pushing the corresponding side track conveyor line to move.

[0014] As a preferred embodiment of the present invention, the sliding support includes vertically opposite side support plates. The upper part of the side support plate is fixedly attached to the vertical part of the second bracket. A first limiting wheel is rotatably connected between the middle parts of the two side support plates at a horizontal interval. The first limiting wheel is laterally and rollingly engaged with a first linear guide rail horizontally disposed on the top surface of the horizontal part of the first bracket. A second pulley is rotatably connected between the bottoms of the two side support plates. The second pulley is rollingly attached to the bottom surface of the horizontal part of the first bracket. A third pulley is symmetrically arranged on the lower part of the outer side surface of the two side support plates. The inner side surface of the third pulley passes through the corresponding side support plate and is rollingly attached to the horizontal part of the first bracket.

[0015] In a preferred embodiment of the present invention, the drive component includes a crossbeam, which is horizontally fixedly mounted on the top surface of the horizontal portion of a plurality of first supports. A plurality of worm gear screws are horizontally mounted at equal intervals on the crossbeam, and the worm gear screws are arranged vertically parallel to the horizontal portion of the corresponding first support. The telescopic end of the worm gear screw is fixedly connected to the vertical portion of the corresponding second support. Adjacent worm gear screws are connected to a drive shaft via a coupling, and a plurality of support bearings, which are axially connected to the crossbeam, are axially spaced on the drive shafts. Third servo motors for driving the rotation of the drive shafts are axially spaced on the plurality of drive shafts.

[0016] As a preferred technical solution of the present invention, a pressing trolley is suspended above the main track conveyor line by a suspension mechanism that is horizontally mounted on the top surface of the conveyor frame;

[0017] The pressing trolley includes a rectangular frame structure. A mounting frame is suspended directly below the frame via a lifting and adjusting mechanism. A pressing component is attached to the bottom surface of the mounting frame. The pressing component is driven downward by the lifting and adjusting mechanism to roll and press against the upper surface of the layered foam conveyed on the main track conveyor.

[0018] As a preferred embodiment of the present invention, the lifting and adjusting mechanism includes a plurality of gear screws symmetrically arranged longitudinally at equal intervals along the side of the trolley frame. Adjacent gear screws on the same side are connected by a matching chain meshing transmission. The bottom end of the gear screw is connected to the side of the corresponding mounting frame. A fourth servo motor is provided on the bottom surface of the inner end of the trolley frame. The power output end of the fourth servo motor is connected to the corresponding gear screws on both sides by matching chains meshing transmission.

[0019] As a preferred embodiment of the present invention, the pressing assembly includes a first pressing roller assembly, on which a second pressing roller assembly is stacked laterally in a staggered manner. Both are composed of a "U"-shaped frame and multiple rollers, and the rollers on the bottom surfaces of both are flush. The first pressing roller assembly and the second pressing roller assembly are respectively suspended by a second linear guide rail fixed along the short side of their respective frame top surfaces and a corresponding slider fixed to the bottom surface of the mounting frame. The first pressing roller assembly and the second pressing roller assembly are positioned and slid along the second linear guide rail in opposite or opposite directions by the pressing width adjustment mechanism provided in the middle of the mounting frame.

[0020] As a preferred embodiment of the present invention, the pressing width adjustment mechanism includes a fifth servo motor that is longitudinally fixed in the middle of the mounting frame, and the fifth servo motor is connected to the first pressing roller assembly and the second pressing roller assembly through a gear and rack assembly.

[0021] The gear and rack assembly includes a drive gear, which is axially connected to the power output end of the fifth servo motor, and a linkage rack is radially meshed on both sides of the drive gear; the first pressure roller assembly and the second pressure roller assembly are respectively fixedly connected to the corresponding linkage rack.

[0022] As a preferred embodiment of the present invention, the suspension mechanism includes a suspension plate horizontally suspended relative to the middle of the top surface of the conveyor frame, wherein a third linear guide rail is laid on the top surface of one of the suspension plates, and sprockets are radially symmetrically arranged on the end sides of the third linear guide rail, and the two sprockets are connected by a matching chain; the sprocket located on the outlet side of the conveyor frame is driven by a matching sixth servo motor.

[0023] The top of one side of the trolley frame is provided with multiple second limiting wheels at equal intervals along its long side, and the second limiting wheels are engaged with the third linear guide rail in a lateral rolling engagement. The top of the other side is provided with multiple fourth pulleys at equal intervals along its long side, corresponding to the axial direction of the second limiting wheels, and the fourth pulleys are rolled on the top surface of the corresponding suspension plate. The top end face of the trolley frame is provided with symmetrically suspended linkage rods on the side near the second limiting wheels, and the linkage rods are fixedly connected to the chains between the two sprockets.

[0024] As a preferred embodiment of the present invention, the steam heating mechanism includes a radiator. One end of the radiator is connected to at least two rows of horizontally oppositely arranged air ducts. The air ducts are located directly below the main conveyor belt, and the air ducts are covered with heat dissipation vents at intervals along their long side. The other end of the radiator is connected to an explosion-proof centrifugal fan. One side of the radiator has a steam inlet and a steam outlet arranged vertically relative to each other, and the steam inlet and the steam outlet are connected in an S-shaped loop within the radiator.

[0025] The beneficial effects of this invention are:

[0026] The shaped track conveyor line of this invention, through the provision of two side track width adjustment mechanisms, can both suspend the respective side track conveyors and adjust the spacing between the two side track conveyors. This allows it to adapt to the production of polyurethane foam boards of different specifications, reducing the economic investment of the manufacturer. In addition, by using a first servo motor and a second servo motor to adjust the operating speed of the main track conveyor line and the side track conveyor line to be the same, it can effectively avoid the speed difference between the two, greatly reduce the probability of material breakage, and reduce waste. Attached Figure Description

[0027] Figure 1 A perspective view of the overall structure of the present invention is shown;

[0028] Figure 2 A front view of the overall structure of the present invention is shown;

[0029] Figure 3 A partial three-dimensional view of the present invention is shown;

[0030] Figure 4This diagram shows a structural schematic of the assembly of the side track conveyor line and the side track width adjustment mechanism in this invention;

[0031] Figure 5 It shows Figure 4 Enlarged view of the structure at part A in the middle;

[0032] Figure 6 A partial structural schematic diagram of the co-drive component in this invention is shown;

[0033] Figure 7 A side view of the overall structure of the present invention is shown;

[0034] Figure 8 A three-dimensional structural schematic diagram of the pressing trolley in this invention is shown;

[0035] Figure 9 The main view of the pressing trolley in this invention is shown;

[0036] Figure 10 This diagram illustrates the assembly structure of the mounting frame and the pressure assembly in this invention.

[0037] Figure 11 A top view of the material pressing assembly in this invention is shown;

[0038] Figure 12 A schematic diagram of the steam heating mechanism in this invention is shown.

[0039] The diagram shows: 1. Conveying frame; 11. Support column; 12. First support; 121. First linear guide rail; 2. Main track conveyor; 21. First servo motor; 3. Side track conveyor; 31. Second servo motor; 4. Side track width adjustment mechanism; 41. Second support; 42. Sliding support; 421. Side support plate; 422. First limiting wheel; 423. Second pulley; 424. Third pulley; 43. Coupling; 431. Crossbeam; 432. Worm gear screw; 433. Coupling; 434. Drive shaft; 435. Support bearing; 436. Third servo motor; 5. Pressing trolley; 51. Trolley frame; 511. Second limiting wheel; 512. Fourth pulley; 513. Linkage rod; 5 2. Mounting frame; 53. Lifting and adjusting mechanism; 531. Gear screw; 532. Fourth servo motor; 54. Pressing assembly; 541. First pressing roller assembly; 542. Second pressing roller assembly; 543. Second linear guide rail; 544. Slider; 55. Pressing width adjusting mechanism; 551. Fifth servo motor; 552. Gear and rack assembly; 5521. Drive gear; 5522. Linkage rack; 6. Suspension mechanism; 61. Suspension plate; 611. Third linear guide rail; 62. Sprocket; 63. Sixth servo motor; 7. Inspection platform; 71. Transparent inspection window; 8. Steam heating mechanism; 81. Air duct; 811. Heat dissipation vent; 82. Radiator; 83. Explosion-proof centrifugal fan. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0041] Example 1

[0042] To address the technical problems in the background art, the following is provided: a shaping conveyor belt system for a multi-component continuous foaming production line:

[0043] Combination Figures 1-3 As shown, a shaping track conveyor line for a multi-component continuous foaming production line includes:

[0044] A conveyor frame 1, which is a tunnel-type square frame structure, with its top and two sides closed;

[0045] A main tracked conveyor line 2 is horizontally erected in the lower middle part of the conveyor frame 1 by multiple support columns 11;

[0046] Two side track conveyor lines 3 are respectively longitudinally symmetrically suspended along the long side edge of the main track conveyor line 2;

[0047] Two side belt width adjustment mechanisms 4 are respectively mounted laterally and symmetrically on both sides of the main track conveyor line 2 via multiple first supports 12 arranged at equal intervals along the extension direction of the conveyor frame 1. The first supports 12 have an inverted L-shaped structure and their horizontal parts are fixedly connected to the inner side of the conveyor frame 1. The side belt width adjustment mechanism 4 is used to suspend and drive the corresponding side track conveyor line 3 to move along the short side direction of the main track conveyor line 2.

[0048] A steam heating mechanism 8 is laid directly below the main track conveyor line 2. The steam heating mechanism 8 is used to heat and shape the layered foam conveyed on the main track conveyor line 2.

[0049] The main track conveyor 2 is driven by a first servo motor 21, and the side track conveyor 3 is driven by a second servo motor 31; the main track conveyor 2 and the side track conveyor 3 operate at the same speed.

[0050] By adopting the above technical solution, the shaped track conveyor line, through the two side belt width adjustment mechanisms 4, can both suspend the respective side track conveyor lines 3 and adjust the spacing between the two side track conveyor lines 3. This allows it to adapt to the production of polyurethane foam boards of different specifications, reducing the economic investment of the manufacturer. In addition, by using the first servo motor 21 and the second servo motor 31 to adjust the operating speed of the main track conveyor line 2 and the side track conveyor line 3 to be the same, it can effectively avoid the speed difference between the two, greatly reducing the probability of material breakage and reducing waste. The horizontal part of the first support 12 is fixedly connected to the inner side of the conveyor frame 1, which can improve the support stability of the first support 12.

[0051] Preferably, the top surface and two sides of the conveyor frame 1 are enclosed by insulation panels, and a row of transparent inspection windows 71 are opened horizontally on each of the two side insulation panels. An inspection platform 7 is correspondingly provided below the outer side of the transparent inspection windows 71. The entire conveyor line is in a relatively enclosed space to prevent heat loss from the space and reduce energy consumption during production. The inspection platform 7 and inspection windows are provided to facilitate the operator's movement and observation of the production situation and equipment status inside the conveyor line.

[0052] Preferably, since traditional tracked conveyor lines use steel structures, the conveying distance of the tracked conveyor lines is limited, and the overall operating speed of the line has to be reduced in order to ensure the foaming time of the material; while in this conveyor line, the main tracked conveyor line 2 and the side tracked conveyor line 3 are both assembled by using two non-standard chains with several irregular aluminum profiles in the middle. Using aluminum profiles is beneficial to reducing the weight of the system and increasing the conveying distance.

[0053] Preferably, the entire conveyor line is inclined downwards at 1° in the direction of material movement; this design facilitates the conveying of the layered foam and allows the polyurethane foaming material filled in the layered foam to flow forward better.

[0054] Example 2

[0055] like Figure 4 As shown, based on the above embodiments, this embodiment further provides the following:

[0056] In this embodiment, the side track width adjustment mechanism 4 includes a plurality of second supports 41 longitudinally suspended on the corresponding first support 12. The second support 41 has an inverted L-shaped structure, with its horizontal part suspended from the corresponding side track conveyor line 3, and its vertical part connected to the horizontal part of the corresponding first support 12 by a sliding support member 42 for lateral sliding limitation. The horizontal parts of the plurality of first supports 12 are laterally mounted with a drive member 43 for pushing the corresponding side track conveyor line 3 to move.

[0057] By adopting the above technical solution, the side track width adjustment mechanism 4 is reasonably designed, easy to operate, and has good stability. Among them, the multiple inverted L-shaped second supports 41 can better provide longitudinal support for the side track conveyor line 3 and distribute the force evenly. The sliding support 42 can both allow the second supports 41 to slide laterally along the horizontal part of the first support 12 and keep the second supports 41 from separating from the first support 12. The connecting drive 43 can simultaneously apply push and pull forces to each second support 41, so that the side track conveyor line 3 can move smoothly.

[0058] like Figure 4 and Figure 5 As shown, the sliding support 42 includes vertically opposite side support plates 421. The upper part of the side support plate 421 is fixedly attached to the vertical part of the second bracket 41. A first limiting wheel 422 is rotatably connected between the middle parts of the two side support plates 421 at a horizontal interval. The first limiting wheel 422 is laterally rolled and engaged with a first linear guide rail 121 horizontally arranged on the top surface of the horizontal part of the first bracket 12. A second pulley 423 is rotatably connected between the bottoms of the two side support plates 421. The second pulley 423 is rolled and attached to the bottom surface of the horizontal part of the first bracket 12. A third pulley 424 is symmetrically arranged on the lower part of the outer side surface of the two side support plates 421. The inner side surface of the third pulley 424 passes through the corresponding side support plate 421 and is rolled and attached to the horizontal part of the first bracket 12.

[0059] By adopting the above technical solution, the sliding support 42 can keep the second support 41 from separating from the first support 12, and also ensure the stability of the second support 41 in walking on the first support 12. The side support plate 421, the first limiting wheel 422 and the first linear guide rail 121 can ensure that the second support 41 walks in a straight line along the first support 12. The second pulley 423 and the third pulley 424 can ensure that the second support 41 is limited to the first support 12 from the left, right and bottom sides, without affecting the normal walking of the second support 41.

[0060] like Figure 4 and Figure 6 As shown, the drive unit 43 includes a crossbeam 431, which is horizontally fixedly installed on the top surface of the horizontal portion of multiple first supports 12. Multiple worm gear screws 432 are horizontally installed at equal intervals on the crossbeam 431, and the worm gear screws 432 are arranged vertically parallel to the horizontal portion of the corresponding first support 12. The telescopic end of the worm gear screw 432 is fixedly connected to the vertical portion of the corresponding second support 41. Adjacent worm gear screws 432 are connected by a drive shaft 434 through a coupling 433. Multiple support bearings 435, which are suspended from the crossbeam 431, are axially sleeved on the drive shaft 434. Third servo motors 436 for driving their rotation are axially spaced on the multiple drive shafts 434.

[0061] By adopting the above technical solution, the drive unit 43 can synchronously apply pushing and pulling forces to each of the second supports 41, enabling the side track conveyor line 3 to move smoothly. The crossbeam 431 is fixedly installed with multiple first supports 12, allowing the reaction force from pushing and pulling the side track conveyor line 3 to be transmitted to the entire conveyor frame 1, thus ensuring structural stability during pushing. The turbine screw 432 can push and pull the second supports 41. The coupling 433 and drive shaft 434 can connect adjacent turbine screws 432 in series, allowing each turbine screw 432 to operate synchronously. The support bearing 435 ensures the stability of the drive shaft 434 during rotation. Multiple axially spaced third servo motors 436 provide the power required by the drive shaft 434.

[0062] Example 3

[0063] like Figure 7 and Figure 8 As shown, based on the above embodiments, this embodiment further provides the following:

[0064] In this embodiment, a pressing trolley 5 is suspended above the main track conveyor line 2 by a suspension mechanism 6 that is horizontally mounted on the top surface of the conveyor frame 1;

[0065] The pressing trolley 5 includes a rectangular frame structure trolley body 51. A mounting frame 52 is suspended directly below the trolley body 51 by a lifting and adjusting mechanism 53. A pressing component 54 is attached to the bottom surface of the mounting frame 52. The pressing component 54 is driven to move downward by the lifting and adjusting mechanism 53 and rolls and presses against the upper surface of the layered foam conveyed on the main track conveyor line 2.

[0066] By adopting the above technical solution, some existing plastic track conveyor lines do not effectively press the upper surface of the layered foam during foaming, resulting in poor flatness of the upper surface of the foamed polyurethane foam board product. In the subsequent process, the uneven part needs to be removed, thus increasing the production cost.

[0067] In order to ensure the flatness of the surface of polyurethane foam board products, some manufacturers use a pressure plate to squeeze the surface of the layered foam in the foaming process to improve the surface quality. Although the surface quality is improved, the pressure plate and the layered foam are subject to sliding friction, which increases the resistance during the operation of the conveyor line.

[0068] The conveyor line effectively presses the upper surface of the layered foam during foaming by suspending a pressing trolley 5 directly above the main crawler conveyor line 2, thereby improving the flatness of the upper surface of the foamed polyurethane foam board product. At the same time, the trolley frame 51 set in the pressing trolley 5 can ensure the stability of the structural installation. The mounting frame 52, together with the lifting and adjusting mechanism 53, can drive and adjust the distance between the pressing component 54 attached to the bottom surface of the mounting frame 52 and the upper surface of the layered foam. The pressing component 54 rolls and presses against the upper surface of the layered foam, which is a rolling friction, and can effectively reduce the resistance during the operation of the conveyor line.

[0069] like Figure 8 As shown, the lifting adjustment mechanism 53 includes a plurality of gear screws 531 that are symmetrically arranged longitudinally at equal intervals along the side of the trolley frame 51. Adjacent gear screws 531 on the same side are connected by a matching chain meshing transmission. The bottom end of the gear screw 531 is connected to the side of the corresponding mounting frame 52. A fourth servo motor 532 is provided on the bottom surface of the inner end of the trolley frame 51. The power output end of the fourth servo motor 532 is connected to the gear screws 531 on both sides of it by matching chains meshing transmission.

[0070] By adopting the above technical solution, the lifting and adjusting mechanism 53 is equipped with multiple gear screws 531 that are symmetrically arranged longitudinally at equal intervals along the side of the trolley frame 51. This ensures the stability of the mounting frame 52 and the pressing assembly 54 during the lifting process, and at the same time, it allows the pressing assembly 54 to apply pressure evenly to the upper surface of the layered foam. The fourth servo motor 532 synchronously drives the gear screws 531 on both sides of its power output end through a double gear chain. Meanwhile, adjacent gear screws 531 on the same side are connected by a matching chain meshing transmission. In this way, all gear screws 531 can perform lifting and lowering actions synchronously, effectively reducing the power installation cost.

[0071] like Figures 9-11 As shown, the pressing assembly 54 includes a first pressing roller assembly 541, on which a second pressing roller assembly 542 is stacked laterally in a staggered manner. Both are composed of a "U"-shaped frame and multiple rollers, and the rollers on the bottom surfaces of both are flush. The first pressing roller assembly 541 and the second pressing roller assembly 542 are respectively slidably suspended by a second linear guide rail 543 fixed along the short side of the top surface of their respective frames and a slider 544 fixed to the bottom surface of the mounting frame 52. The first pressing roller assembly 541 and the second pressing roller assembly 542 are positioned and slid along the second linear guide rail 543 in opposite or opposite directions by the pressing width adjustment mechanism 55 located in the middle of the mounting frame 52.

[0072] By adopting the above technical solution, the first pressing roller assembly 541 and the second pressing roller assembly 542 in the pressing assembly 54 are stacked in a staggered manner. They are suspended from the bottom surface of the mounting frame 52 by the second linear guide rail 543 and the corresponding slider 544, respectively. Simultaneously, driven by the pressing width adjustment mechanism 55 located in the middle of the mounting frame 52, the first pressing roller assembly 541 and the second pressing roller assembly 542 can slide and position themselves in opposite or opposite directions along the second linear guide rail 543. This allows the spacing between the first pressing roller assembly 541 and the second pressing roller assembly 542 to be adjusted synchronously according to the spacing between the two side conveyor belts 3, enabling the entire pressing assembly 54 to adapt to changes in the width of the upper surface of layered foam of different sizes. The rollers on the bottom surfaces of the first pressing roller assembly 541 and the second pressing roller assembly 542 are flush, which does not affect the flatness of the upper surface of the layered foam during rolling pressing.

[0073] like Figure 10 and Figure 11 As shown, the pressing width adjustment mechanism 55 includes a fifth servo motor 551 that is longitudinally fixed in the middle of the mounting frame 52. The fifth servo motor 551 is connected to the first pressing roller assembly 541 and the second pressing roller assembly 542 through a gear and rack assembly 552.

[0074] The gear and rack assembly 552 includes a drive gear 5521, which is axially connected to the power output end of the fifth servo motor 551. The drive gear 5521 is radially meshed with a linkage rack 5522 on both sides. The first pressing roller assembly 541 and the second pressing roller assembly 542 are respectively fixedly connected to the corresponding linkage rack 5522.

[0075] By adopting the above technical solution, the fifth servo motor 551 in the pressing width adjustment mechanism 55 drives the drive gear 5521 to rotate, and the drive gear 5521 synchronously drives the linkage racks 5522 on both sides to move laterally in a staggered manner. In this way, the first pressing roller assembly 541 and the second pressing roller assembly 542 can be synchronously driven to slide in opposite or opposite directions along the second linear guide rail 543. The whole process has good synchronization, only requires one power source, reduces power installation costs, and reduces the weight of the entire pressing trolley 5.

[0076] like Figures 1-3 and Figures 7-9 As shown, the suspension mechanism 6 includes a suspension plate 61 horizontally suspended from the middle of the inner top surface of the conveyor frame 1. A third linear guide rail 611 is laid on the top surface of one of the suspension plates 61. Sprockets 62 are radially symmetrically arranged on the end sides of the third linear guide rail 611. The two sprockets 62 are connected by a matching chain. The sprocket 62 located on the outlet side of the conveyor frame 1 is driven by a sixth servo motor 63 that is matched with it.

[0077] The top of one side of the trolley frame 51 is provided with a plurality of second limiting wheels 511 at equal intervals along its long side, and the second limiting wheels 511 are engaged with the third linear guide rail 611 in a lateral rolling engagement; the top of the other side is provided with a plurality of fourth pulleys 512 at equal intervals along its long side, which are axially corresponding to the second limiting wheels 511, and the fourth pulleys 512 are rolled on the top surface of the corresponding suspension plate 61; the top end face of the trolley frame 51 is provided with symmetrically suspended linkage rods 513 on the side near the second limiting wheels 511, and the linkage rods 513 are fixedly connected to the chains between the two sprockets 62.

[0078] By adopting the above technical solution, the suspension mechanism 6 can drive the pressing trolley 5 to move along the long side of the main track conveyor line 2, which can adapt to the rolling pressing position requirements of layered foams with different types of polyurethane foam raw materials. Among them, the two suspension plates 61 can facilitate the rolling suspension of the pressing trolley 5. The second limiting wheel 511 on one side of the trolley frame 51 is laterally rolled and engaged with the third linear guide rail 611 on the corresponding suspension plate 61, which can prevent the pressing trolley 5 from shifting during straight-line movement. The fourth pulley 512 on the other side of the trolley frame 51 is provided to retain a little room for movement, while also reducing the precision requirements and manufacturing costs. The linkage rod 513 is fixedly connected to the chain between the two sprockets 62, so that the sixth servo motor 63 drives the sprocket 62 to rotate, and the sprocket 62 drives the entire pressing trolley 5 to move laterally along the third linear guide rail 611 through the chain and linkage rod 513.

[0079] Example 4

[0080] like Figure 12 As shown, based on the above embodiments, this embodiment further provides the following:

[0081] In this embodiment, the steam heating mechanism 8 includes a radiator 82. One end of the radiator 82 is connected to at least two rows of horizontally opposite air ducts 81. The air ducts 81 are located directly below the main conveyor belt 2, and the air ducts 81 are covered with heat dissipation vents 811 at intervals along their long side. The other end of the radiator 82 is connected to an explosion-proof centrifugal fan 83. One side of the radiator 82 is vertically arranged with a steam inlet and a steam outlet, and the steam inlet and steam outlet are connected in an S-shaped loop within the radiator 82.

[0082] By adopting the above technical solution, the external steam in the steam heating mechanism 8 enters the radiator 82 through the steam inlet and is discharged from the steam outlet along the S-shaped loop in the radiator 82 for recycling. During this process, the explosion-proof centrifugal fan 83 blows air into the S-shaped loop in the radiator 82, so the heat of the steam enters the air duct 81 and is then discharged from multiple heat dissipation vents, thereby heating and shaping the layered foam on the main conveyor belt 2. The entire steam heating mechanism 8 can achieve steam recycling and will not produce water vapor condensation on the surface of the layered foam, thus achieving uniform heating and shaping. The S-shaped loop can increase the residence time of steam in the radiator 82. The air duct 81 can be composed of two parts connected in series, with the part closer to the radiator 82 being wider and the part facing the material's direction of travel being narrower. This ensures that the initial section has higher heat and the final section has lower heat, meeting the shaping requirements of the layered foam at different times.

[0083] Working principle and usage process of this invention:

[0084] In use, this invention first adjusts the spacing between the two side conveyor belts 3 according to different specifications of layered foam by using the side belt width adjustment mechanism 4. At the same time, it adjusts the spacing between the first pressing roller assembly 541 and the second pressing roller assembly 542 by using the pressing width adjustment mechanism 55. Then, it adjusts the lateral position of the pressing trolley 5 by using the suspension mechanism 6, and lowers the entire pressing assembly 54 to a suitable height for rolling and pressing against the upper surface of the layered foam by using the lifting adjustment mechanism 53. Finally, it starts the steam heating mechanism 8 to complete the preparation of the shaping conveyor belt line.

[0085] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A shaping conveyor belt for a multi-component continuous foaming production line, characterized in that, The shaped crawler conveying line body comprises: a conveying frame body (1), which is of a tunnel-type square frame structure with a closed top surface and two side surfaces; a main crawler conveying line (2), which is transversely erected at the middle and lower part in the conveying frame body (1) through a plurality of support columns (11); two side crawler conveying lines (3), which are respectively longitudinally and symmetrically suspended at the long side edges of the main crawler conveying line (2); two side belt width adjusting mechanisms (4), which are respectively transversely and symmetrically erected on both sides of the main crawler conveying line (2) through a plurality of first brackets (12) arranged at equal intervals along the extension direction of the conveying frame body (1), wherein the first brackets (12) are of an inverted L-shaped structure, and the horizontal parts thereof are fixedly connected with the inner side surfaces of the conveying frame body (1); the side belt width adjusting mechanisms (4) are configured to suspend and support the corresponding side crawler conveying lines (3) and drive the corresponding side crawler conveying lines (3) to move along the short side direction of the main crawler conveying line (2); a steam heating mechanism (8), which is laid directly below the main crawler conveying line (2), wherein the steam heating mechanism (8) is configured to heat and shape the layered foam conveyed on the main crawler conveying line (2); the main crawler conveying line (2) is driven to operate by a first servo motor (21), and the side crawler conveying lines (3) are driven to operate by a second servo motor (31); the operating speed of the main crawler conveying line (2) is the same as that of the side crawler conveying lines (3); a material pressing trolley (5) is suspended directly above the main crawler conveying line (2) by a suspension driving mechanism (6) transversely erected on the inner top surface of the conveying frame body (1); the material pressing trolley (5) comprises a trolley frame body (51) of a rectangular frame structure, a mounting frame (52) is suspended directly below the trolley frame body (51) through a lifting adjusting mechanism (53) arranged on the trolley frame body (51), a material pressing assembly (54) is attached to the bottom surface of the mounting frame (52), and the material pressing assembly (54) is driven to move down by the lifting adjusting mechanism (53) to be in rolling pressing connection with the upper surface of the layered foam conveyed on the main crawler conveying line (2); the material pressing assembly (54) comprises a first material pressing roller assembly (541), on which a second material pressing roller assembly (542) is transversely stacked in a staggered manner, both the first material pressing roller assembly and the second material pressing roller assembly are composed of a C-shaped frame and a plurality of rollers, and the rollers on the bottom surfaces of the two are flush; the first material pressing roller assembly (541) and the second material pressing roller assembly (542) are respectively in transverse sliding fit and suspended connection with sliding blocks (544) correspondingly fixedly arranged on the bottom surface of the mounting frame (52) through second linear guide rails (543) fixedly arranged along the short side direction of the respective top surfaces of the frames; the first material pressing roller assembly (541) and the second material pressing roller assembly (542) are driven by a material pressing width adjusting mechanism (55) arranged in the middle of the mounting frame (52) to perform positioning sliding in opposite or facing directions along the direction of the second linear guide rails (543); The suspension mechanism (6) includes a suspension plate (61) horizontally suspended relative to each other in the middle of the inner top surface of the conveying frame (1). A third linear guide rail (611) is laid on the top surface of one of the suspension plates (61). Sprockets (62) are radially symmetrically arranged on the end sides of the third linear guide rail (611). The two sprockets (62) are connected by meshing chains that are adapted to them. The sprocket (62) located on the outlet side of the conveying frame (1) is driven by a sixth servo motor (63) that is adapted to it. The top of one side of the trolley frame (51) is provided with a plurality of second limiting wheels (511) at equal intervals along its long side, and the second limiting wheels (511) are engaged with the third linear guide rail (611) in a transverse rolling engagement; the top of the other side is provided with a plurality of fourth pulleys (512) at equal intervals along its long side, which are axially corresponding to the second limiting wheels (511), and the fourth pulleys (512) are rolled on the top surface of the corresponding suspension plate (61); the top end face of the trolley frame (51) near the second limiting wheels (511) is provided with symmetrically laterally suspended linkage rods (513), and the linkage rods (513) are fixedly overlapped with the chains between the two sprockets (62).

2. The shaping conveyor belt system for a multi-component continuous foaming production line according to claim 1, characterized in that: The side belt width adjustment mechanism (4) includes a plurality of second supports (41) longitudinally suspended on the corresponding first support (12). The second support (41) has an inverted L-shaped structure, with its horizontal part suspended from the corresponding side track conveyor line (3), and its vertical part connected to the horizontal part of the corresponding first support (12) through a sliding support (42) for laterally sliding and limiting connection. The horizontal part of the plurality of first supports (12) is laterally mounted with a drive member (43) for pushing the corresponding side track conveyor line (3) to move.

3. A shaping conveyor belt for a multi-component continuous foaming production line according to claim 2, characterized in that: The sliding support (42) includes vertically opposite side support plates (421). The upper part of the side support plate (421) is fixedly attached to the vertical part of the second bracket (41). A first limiting wheel (422) is rotatably connected between the middle parts of the two side support plates (421) at a horizontal interval. The first limiting wheel (422) is rotatably engaged with a first linear guide rail (121) horizontally set on the top surface of the horizontal part of the first bracket (12). A second pulley (423) is rotatably connected between the bottoms of the two side support plates (421). The second pulley (423) is rotatably attached to the bottom surface of the horizontal part of the first bracket (12). A third pulley (424) is symmetrically arranged on the lower part of the outer side surface of the two side support plates (421). The inner side surface of the third pulley (424) passes through the corresponding side support plate (421) and is rotatably attached to the horizontal part of the first bracket (12).

4. A shaping conveyor belt for a multi-component continuous foaming production line according to claim 3, characterized in that: The drive unit (43) includes a crossbeam (431), which is horizontally fixedly installed on the top surface of the horizontal part of a plurality of first supports (12). A plurality of worm gear screws (432) are horizontally installed at equal intervals on the crossbeam (431), and the worm gear screws (432) are arranged vertically parallel to the horizontal part of the corresponding first support (12). The telescopic end of the worm gear screw (432) is fixedly connected to the vertical part of the corresponding second support (41). A drive shaft (434) is connected between adjacent worm gear screws (432) through a coupling (433). A plurality of support bearings (435) that are suspended from the crossbeam (431) are axially sleeved on the drive shaft (434). A third servo motor (436) for driving its rotation is axially spaced on the plurality of drive shafts (434).

5. A shaping conveyor belt for a multi-component continuous foaming production line according to claim 1, characterized in that: The lifting and adjusting mechanism (53) includes a plurality of gear screws (531) arranged symmetrically at equal intervals along the side of the trolley frame (51). Adjacent gear screws (531) on the same side are connected by a matching chain meshing transmission. The bottom end of the gear screw (531) is connected to the side of the corresponding mounting frame (52). A fourth servo motor (532) is provided on the bottom surface of the inner end of the trolley frame (51). The power output end of the fourth servo motor (532) is connected to the gear screws (531) on both sides of it by a matching chain meshing transmission.

6. A shaping conveyor belt for a multi-component continuous foaming production line according to claim 1, characterized in that: The pressing width adjustment mechanism (55) includes a fifth servo motor (551) longitudinally fixed in the middle of the mounting frame (52). The fifth servo motor (551) is connected to the first pressing roller assembly (541) and the second pressing roller assembly (542) through a gear and rack assembly (552). The gear and rack assembly (552) includes a drive gear (5521), which is axially connected to the power output end of the fifth servo motor (551). The drive gear (5521) is radially meshed with a linkage rack (5522) on both sides. The first pressure roller assembly (541) and the second pressure roller assembly (542) are fixedly connected to the corresponding linkage rack (5522).

7. A shaping conveyor belt for a multi-component continuous foaming production line according to any one of claims 1 to 6, characterized in that: The steam heating mechanism (8) includes a radiator (82), one end of which is connected to at least two rows of horizontally opposite air ducts (81), the air ducts (81) being positioned directly below the main track conveyor line (2), and the air ducts (81) being spaced apart along their long side; the other end of which is connected to an explosion-proof centrifugal fan (83); one side of the radiator (82) is vertically arranged with a steam inlet and a steam outlet, and the steam inlet and steam outlet are connected in an S-shaped loop within the radiator (82).

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