A polyurethane insulation board forming device

Abstract

The utility model provides a kind of polyurethane insulation board forming device, including forming rack, several conveying rollers are horizontally rotationally arranged on the forming rack, side edge forming assembly is provided in the conveying roller both sides, the side edge forming assembly includes preliminary forming briquetting device and forming press roller device, preliminary forming briquetting device is arranged at the both sides of the entrance of forming rack, forming press roller device is vertically rotationally arranged and is distributed on the opposite inner side of forming rack;Preliminary forming briquetting device includes vertically arranged mounting plate and detachable briquetting, horizontal slot is opened in the mounting plate, detachable briquetting is provided with clamping strip, the clamping strip is clamped in the slot, detachable briquetting includes press groove protruding block and protruding inner recess block, the press groove protruding block is outward protruding, and the protruding inner recess block is formed with inner recess groove.The device can process different insulation board side edge structure by one equipment, reduce the gap between substrate and polyurethane bubble surface.

Description

Technical Field

[0001] This utility model relates to the field of insulation board production technology, and in particular to a polyurethane insulation board molding device. Background Technology

[0002] Currently, the production of polyurethane insulation boards is mainly based on intermittent box-type production, which involves spraying polyurethane raw materials onto color steel plates, then laying aluminum foil on top, and forming a whole module through polyurethane foaming. Then, a cutting machine is used to cut it into boards of different lengths.

[0003] Currently, a Chinese invention patent with the announcement date of October 22, 2021, and announcement number CN111906987B, proposes a polyurethane insulation board and its production line, which relates to the technical field of insulation board manufacturing. The polyurethane insulation board includes a substrate, aluminum foil cloth, and polyurethane foam. One end of the substrate in the width direction is bent to form a first groove, and the other end of the substrate in the width direction is bent to form a second groove. The two ends of the aluminum foil cloth are respectively embedded in the first groove and the second groove. The polyurethane foam is filled between the substrate and the aluminum foil cloth. The production line includes an unwinding machine, an embossing machine, a molding machine, a foaming machine, a spreading machine, an embedding machine, and a laminating machine. It also includes a conveying device for conveying the substrate. The foaming machine, the spreading machine, and the embedding machine are sequentially arranged on the conveying device.

[0004] However, current equipment production lines only have a single side forming structure and do not provide processing equipment for different side shapes. To meet the production needs of insulation boards with different side shapes and structures, different forming equipment is required, which greatly increases the equipment investment cost for manufacturers and affects the overall economic benefits. Furthermore, the side fit between the insulation board substrate and polyurethane foam during the forming process is also particularly important and has a significant impact on the quality of the formed product. The current production process involves first pressing the substrate into shape and then spraying polyurethane foam. When the polyurethane foam is bonded or adhered to the multi-bend structure of the substrate side, gaps or air bubbles may remain, affecting the overall production quality.

[0005] Therefore, in response to the above-mentioned technical problems, how to reduce equipment investment for the production needs of different sides of the insulation board and how to improve the production quality of the insulation board are technical problems that need to be solved by those skilled in the art. Utility Model Content

[0006] The purpose of this application is to disclose a polyurethane insulation board molding apparatus, which has the advantages of being able to process different insulation board side structures with one machine and reducing the gap between the substrate and the polyurethane foam.

[0007] To achieve the above objectives, this application provides a polyurethane insulation board molding apparatus, including a molding frame. Several conveying rollers are horizontally rotatably arranged on the molding frame. Side molding components are arranged on both sides of the conveying rollers. The side molding components include a preliminary molding block device and a molding roller device. The preliminary molding block device is arranged on both sides of the entrance of the molding frame. The molding roller device is vertically rotatably arranged and evenly distributed on the opposite inner surfaces of the molding frame.

[0008] The preliminary forming pressing block device includes a vertically arranged mounting plate and a detachable pressing block. The mounting plate has a horizontally opened slot, and the detachable pressing block is provided with a retaining strip, which is engaged in the slot. The detachable pressing block includes a groove protrusion and a protrusion concave block. The groove protrusion protrudes outward, and the protrusion concave block is formed with an inner groove. The groove protrusion and the protrusion concave block are respectively arranged on the mounting plates on both sides. The outward protrusion length of the groove protrusion increases continuously from the inlet direction to the outlet direction, and the inner groove depth of the protrusion concave block increases continuously from the inlet direction to the outlet direction.

[0009] The shape of the forming roller device located on the same side matches the pressing structure of the preliminary forming block device on the corresponding side.

[0010] The working process and principle of the above structure are as follows:

[0011] During operation, the conveyor rollers on the forming frame move the substrate coated with polyurethane foam forward. The sides of the substrate pass sequentially through the preliminary forming pressing device and the forming pressure roller device. The preliminary forming device performs initial pressing and bending on the sides of the insulation board substrate, while the outward protrusion length of the groove protrusions continuously increases, and the inward concavity depth of the protrusion concavities continuously increases, all to increase the initial pressing force on the sides of the substrate. The forming pressure roller device performs the final pressing and shaping on the sides of the insulation board substrate. The forming pressure rollers located on both sides of the conveyor rollers press out the protrusion structure and groove structure on both sides of the insulation board, respectively, pressing the two sides into the assembly structure shape for easy later installation. At the same time, when pressing the sides of the insulation board, it can make the insulation board side... The inner wall of the edge is more tightly bonded to the polyurethane foam, effectively eliminating gaps and voids, promoting the adhesion of the polyurethane foam to the substrate, and effectively ensuring the production quality of the insulation board. According to actual production needs and structural installation requirements, the detachable pressure block in the initial forming pressure block device can be replaced. Different structures of detachable pressure blocks can be adapted to the side of the insulation board with different structural requirements. Similarly, when changing the structure, the forming pressure roller needs to be replaced accordingly. When production needs need to be changed, simply remove the detachable pressure block and forming pressure roller and replace them with another type of detachable pressure block and forming pressure roller. No other equipment needs to be replaced to carry out edge pressing production, saving additional equipment investment and greatly improving the production efficiency of enterprises.

[0012] Preferably, the forming roller device includes a rotating shaft and a detachable forming roller. The detachable forming roller includes two types: a raised roller and a concave roller. The raised roller is composed of a raised left half roller and a raised right half roller with the same external shape. The concave roller is composed of a concave left half roller and a concave right half roller with the same external shape. A raised ring is formed outward from the middle of the raised roller. An annular groove is formed inward from the middle of the concave roller. The shapes of the raised roller and the concave roller are mutually matched, and the raised ring fits into the annular groove.

[0013] Both the concave left and right half-rollers have semi-circular through grooves along their axes. Two semi-circular through grooves combine to form a through hole. The rotating shaft mates with the through hole. Several limiting rings are formed on the rotating shaft. Limiting grooves are formed on the inner wall of the through hole at the positions corresponding to the limiting rings. Several slots are formed on one side of the mating surface of the concave left half-roller. The slots are arranged in a row. Several insert plates are provided on the other side of the mating surface of the concave left half-roller. The distance between the insert plates and the axis is the same as the distance between the slots and the axis. Fixed threaded holes are formed on the axial end face of the concave left half-roller at the positions corresponding to the slots. The fixed threaded holes pass through the slots. Circular holes are formed on the insert plates at the positions corresponding to the fixed threaded holes. Long bolts are installed in the fixed threaded holes.

[0014] The concave right half roller and the corresponding concave left half roller are arranged symmetrically about the axis of the through hole. The inner structure of the convex left half roller is the same as that of the concave left half roller, and the inner structure of the convex right half roller is the same as that of the concave right half roller.

[0015] When replacing, the long bolt needs to be removed from the fixed threaded hole. Then, separate the insert plates of the concave left and right half rollers from the slots to quickly remove the concave left and right half rollers. Then, replace them with forming rollers of a different shape. The semi-circular through grooves of the concave left and right half rollers fit into the rotating shaft. Engage the limiting ring on the rotating shaft with the limiting groove in the semi-circular through groove. Insert the corresponding insert plates of the concave left and right half rollers into the slots. Finally, use the long bolt to pass through the fixed threaded hole and the round hole of the insert plate to finally fasten the concave left and right half rollers onto the rotating shaft. The disassembly and assembly of the protruding left and right half rollers are the same as those of the concave rollers.

[0016] Preferably, the card slot is a T-shaped slot or a dovetail slot, with both ends of the card slot being through, and the structure of the card strip matching the structure of the card slot.

[0017] Preferably, the cross-section of the groove protrusion has a convex shape, and the cross-section of the protrusion concave block has a concave shape.

[0018] The concave-convex structure is a commonly used assembly and interlocking structure. The groove protrusion and the concave protrusion can respectively pre-press out the protrusion strip and the groove.

[0019] Preferably, the outer convex portion of the pressure groove protrusion is arc-shaped, and the inner concave portion of the protrusion concave block is arc-shaped.

[0020] The outer convex part of the groove protrusion and the inner concave part of the protrusion concave are both arc-shaped. This is mainly because the side bending of the substrate cannot be formed in one step during the initial pressing. Therefore, the initial forming method is adopted. In addition, the contact surface of the arc-shaped structure makes it easier to bend the side of the substrate, which is convenient for subsequent pressing and forming.

[0021] Preferably, the cross-section of the raised ring is an isosceles trapezoid, the cross-section of the annular groove is an isosceles trapezoid, and the raised ring fits into the annular groove.

[0022] Both the raised ring and the annular groove have isosceles trapezoidal cross sections, which facilitates further pressing of the initial pressed substrate side. The structures of the raised ring and the annular groove work together to further press the substrate side with a tight fit between the two side structures.

[0023] Preferably, an infrared heating lamp is provided between horizontally adjacent conveyor rollers, and several temperature sensors are provided on the inner wall of the forming frame.

[0024] The use of infrared heating lamps allows for simultaneous heating and insulation of the insulation board during the conveying and pressing process, which further facilitates the pressing and molding of the insulation board's sides. The polyurethane foam will not become an obstacle. Temperature sensors are used to detect the temperature inside the molding frame, and the infrared heating lamps can be easily adjusted and controlled when the temperature is too low or too high.

[0025] Preferably, the conveying rollers are arranged in pairs, one above the other, to form two rows of conveying rollers.

[0026] The two rows of conveyor rollers not only transport the insulation board but also provide support and upper pressure to prevent lateral deformation during the side pressing process.

[0027] Preferably, extension rollers are detachably provided at both ends of the conveying roller, and the extension rollers are sleeved on the shafts at both ends of the conveying roller.

[0028] The extension rollers are designed to accommodate the support and conveying of insulation boards of different widths.

[0029] Preferably, the number of limiting rings is at least two, and the limiting rings are evenly distributed on the rotating shaft.

[0030] Preferably, the fixing threaded hole is a countersunk hole, and the long bolt is an internal hex bolt.

[0031] Compared to the aforementioned background technology, the polyurethane insulation board molding device of this utility model, during operation, has its conveyor rollers on the molding frame driving the substrate coated with polyurethane foam forward. The sides of the substrate sequentially pass through a preliminary molding pressing device and a molding pressing roller device. The preliminary molding device performs preliminary pressing and bending on the sides of the insulation board substrate, while the outward protrusion length of the groove protrusions continuously increases, and the inward concavity depth of the protrusion concavities continuously increases, all to increase the initial pressing force on the sides of the substrate. The molding pressing roller device achieves final pressing and molding on the sides of the insulation board substrate. The molding pressing rollers located on both sides of the conveyor rollers respectively press protrusion structures and groove structures on both sides of the insulation board, pressing the two sides into an assembly structure shape for easy subsequent installation. Simultaneously, during the pressing... When pressing the sides of the insulation board, the inner wall of the insulation board side can be more tightly bonded to the polyurethane foam, effectively eliminating gaps and voids, promoting the bonding between the polyurethane foam and the substrate, and effectively ensuring the production quality of the insulation board. Depending on actual production and structural installation requirements, the detachable pressing blocks in the initial forming pressing device can be replaced. Different structures of detachable pressing blocks can be adapted to insulation board sides with different structural requirements. Similarly, when changing the structure, the corresponding forming rollers need to be replaced. When production requirements need to be changed, simply remove the detachable pressing blocks and forming rollers quickly and replace them with detachable pressing blocks and forming rollers of another structure. No other equipment needs to be replaced to perform edge pressing production, saving additional equipment investment and greatly improving the company's production efficiency. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 A three-dimensional structural schematic diagram of the polyurethane insulation board molding device provided in an embodiment of this utility model;

[0034] Figure 2 A top view of the overall structure of the polyurethane insulation board molding device provided in this embodiment of the utility model;

[0035] Figure 3 This is a top view of the structure of the pressure groove protrusion in the polyurethane insulation board molding device provided in this embodiment of the utility model.

[0036] Figure 4 This is a side view of the structure of the pressure groove protrusion in the polyurethane insulation board molding device provided in this embodiment of the utility model.

[0037] Figure 5This is a front view of the structure of the pressure groove protrusion in the polyurethane insulation board molding device provided in this embodiment of the utility model;

[0038] Figure 6 A top view of the protruding and concave block in the polyurethane insulation board molding device provided in this embodiment of the utility model.

[0039] Figure 7 A side view of the structure of the protruding and concave block in the polyurethane insulation board molding device provided in this embodiment of the utility model.

[0040] Figure 8 for Figure 7 Structural cross-sectional view of AA;

[0041] Figure 9 A schematic diagram of the raised roller structure in the polyurethane insulation board forming device provided in this embodiment of the utility model;

[0042] Figure 10 This is a front view of the structure of the concave roller in the polyurethane insulation board forming device provided in an embodiment of the present utility model.

[0043] Figure 11 A top view of the concave roller in the polyurethane insulation board forming device provided in this embodiment of the utility model;

[0044] Figure 12 A schematic diagram of the unfolded structure of the concave roller in the polyurethane insulation board forming device provided in this embodiment of the utility model.

[0045] Figure 13 for Figure 11 A cross-sectional view of the structure of BB.

[0046] The image includes:

[0047] 1. Forming frame; 2. Conveying roller; 3. Preliminary forming pressing device; 301. Mounting plate; 302. Slot; 303. Clip; 304. Pressing groove protrusion; 305. Protrusion concave block; 4. Forming pressing roller device; 401. Rotating shaft; 402. Protrusion left half roller; 403. Protrusion right half roller; 405. Protrusion roller; 406. Concave roller; 407. Semi-circular through groove; 408. Limiting ring; 409. Limiting groove; 410. Slot; 411. Insert plate; 412. Fixing threaded hole; 413. Long bolt; 414. Protrusion ring; 415. Annular groove; 416. Concave left half roller; 417. Concave right half roller; 5. Extension roller; 6. Infrared heating lamp; 7. Temperature sensor. Detailed Implementation

[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0049] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0050] Combination Figures 1 to 13 As shown, this utility model provides a polyurethane insulation board molding device, including a molding frame 1. Eight sets of conveying rollers 2 are horizontally rotatably arranged on the molding frame 1. Side molding components are arranged on both sides of the conveying rollers 2. The side molding components include a preliminary molding pressing device 3 and a molding pressing roller device 4. The preliminary molding pressing device 3 is arranged on both sides of the entrance of the molding frame 1. The molding pressing roller device 4 is vertically rotatably arranged and evenly distributed on the opposite inner side of the molding frame 1.

[0051] The preliminary forming pressing device 3 includes a vertically arranged mounting plate 301 and a detachable pressing block. The mounting plate 301 is installed on the opposite inner side wall of the forming frame 1. A slot 302 is horizontally opened on the mounting plate 301. A retaining strip 303 is provided on the detachable pressing block. The retaining strip 303 is engaged in the slot 302. The detachable pressing block includes a groove protrusion 304 and a protrusion concave block 305. The groove protrusion 304 protrudes outward, and the protrusion concave block 305 is formed with an inner groove. The groove protrusion 304 and the protrusion concave block 305 are respectively arranged on the mounting plates 301 on both sides of the forming frame 1. The outward protrusion length of the groove protrusion 304 increases continuously from the inlet direction to the outlet direction, and the inner groove depth of the protrusion concave block 305 increases continuously from the inlet direction to the outlet direction.

[0052] The shape of the forming roller device 4 located on the same side matches the pressing structure of the preliminary forming block device 3 on the corresponding side.

[0053] The working process and principle of the above structure are as follows:

[0054] During operation, the conveyor roller 2 on the forming frame 1 drives the substrate coated with polyurethane foam forward. The sides of the substrate pass sequentially through the preliminary forming pressing device 3 and the forming pressing roller device 4. The preliminary forming device performs preliminary pressing and bending on the sides of the insulation board substrate, while the outward protrusion length of the pressing groove protrusion 304 continuously increases, and the inward concavity depth of the protrusion concave block 305 continuously increases, all to increase the initial pressing force on the sides of the substrate. The forming pressing roller device 4 achieves the final pressing and forming of the sides of the insulation board substrate. The forming pressing rollers located on both sides of the conveyor roller 2 press out the protrusion structure and the groove structure on both sides of the insulation board, respectively, pressing the two sides into the shape of the assembly structure, which is convenient for later installation. At the same time, when pressing the sides of the insulation board, it can... This ensures a tighter bond between the inner wall of the insulation board's side and the polyurethane foam, effectively eliminating gaps and voids, promoting adhesion between the polyurethane foam and the substrate, and effectively guaranteeing the production quality of the insulation board. Depending on actual production and structural installation requirements, the detachable pressure blocks in the initial forming pressure block device 3 can be replaced. Different structures of detachable pressure blocks can adapt to the side of insulation boards with different structural requirements. Similarly, when changing the structure, the corresponding forming pressure roller needs to be replaced. When production requirements need to be changed, simply remove the detachable pressure blocks and forming pressure rollers quickly and replace them with another type of detachable pressure blocks and forming pressure rollers. No other equipment needs to be replaced to perform edge pressing production, saving additional equipment investment and greatly improving the company's production efficiency.

[0055] In another embodiment of this utility model, such as Figures 1-13 As shown, the forming roller device 4 includes a rotating shaft 401 and a detachable forming roller. A mounting frame is provided on each of the relatively inner side walls of the forming frame 1. Each mounting frame includes a fixed plate vertically mounted on the side wall of the forming frame 1 and a U-shaped rotating frame corresponding to each forming roller device 4. The rotating shaft 401 rotates on the rotating frame. The preliminary forming block device 3 is also mounted on the fixed plate. The mounting plate is connected to the forming frame 1 by bolts, and locking nuts are provided on the bolts. The locking nuts are located on both sides of the mounting plate. This arrangement allows for adjustment of the position of the entire fixed plate according to the width of the insulation board, thereby driving the side rollers. The edge forming assembly moves as a whole to match the width of the corresponding insulation board. The detachable forming roller includes two types: a raised roller 405 and a concave roller 406. The raised roller 405 is composed of a raised left half roller 402 and a raised right half roller 403 with the same external shape. The concave roller 406 is composed of a concave left half roller 416 and a concave right half roller 417 with the same external shape. A raised ring 414 is formed outward from the middle of the raised roller 405. A ring groove 415 is formed inward from the middle of the concave roller 406. The external shapes of the raised roller 405 and the concave roller 406 are matched with each other, and the raised ring 414 fits into the ring groove 415.

[0056] Both the concave left half-roller 416 and the concave right half-roller 417 have semi-circular through grooves 407 along their axes. The two semi-circular through grooves 407 combine to form a through hole. The rotating shaft 401 mates with the through hole. A limiting ring 408 is formed on the rotating shaft 401. A limiting groove 409 is formed on the inner wall of the through hole at the position corresponding to the limiting ring 408. Two slots 410 are formed on one side of the mating surface of the concave left half-roller 416. The two slots 410 are arranged in a row. Two insert plates 411 are provided on the other side of the mating surface of the concave left half-roller 416. The distance between each insert plate 411 and the axis is equal to the distance between the slots 409 and the axis. The distance between 10 and the axis is the same. A fixing threaded hole 412 is opened on the axial end face of the concave left half roller 416 at the position corresponding to the slot 410. The fixing threaded hole 412 passes through the slot 410. A round hole is opened on the insert plate 411 at the position corresponding to the fixing threaded hole 412. A long bolt 413 is installed in the fixing threaded hole 412. The concave right half roller 417 and the corresponding concave left half roller 416 are arranged symmetrically about the axis of the forming pressure roller. The inner structure of the raised left half roller 402 is the same as that of the concave left half roller 416. The inner structure of the raised right half roller 403 is the same as that of the concave right half roller 417.

[0057] During replacement, the long bolt 413 needs to be removed from the fixed threaded hole 412. Then, the insert plate 411 of the concave left half roller 416 and the concave right half roller 417 should be separated from the slot 410 to quickly remove the concave left half roller 416 and the concave right half roller 417. After that, a forming pressure roller of a different shape can be replaced. The semi-circular through groove 407 of the concave left half roller 416 and the concave right half roller 417 should be attached to the rotating shaft 401. The limiting ring 408 on the rotating shaft 401 and the half... The limiting groove 409 in the circular through groove 407 engages, inserting the corresponding concave left half roller 416 and concave right half roller 417 into the slot 410. Finally, the long bolt 413 passes through the fixing threaded hole 412 and the circular hole of the insert plate 411, and finally the concave left half roller 416 and concave right half roller 417 are fastened to the rotating shaft 401. The disassembly and assembly of the protruding left half roller 402 and protruding right half roller 403 are the same as the disassembly and assembly of the concave roller 406.

[0058] In another embodiment of this utility model, the card slot 302 is a T-shaped slot or a dovetail slot, with both ends of the card slot 302 being through, and the structure of the card strip 303 matching the structure of the card slot 302.

[0059] In another embodiment of this utility model, such as Figures 3-8 As shown, the cross-section of the groove protrusion 304 is convex, and the cross-section of the protrusion concave block 305 is concave.

[0060] The concave-convex structure is a commonly used assembly and interlocking structure. The groove protrusion block 304 and the protrusion concave block 305 can respectively pre-press out the protrusion strip and the groove.

[0061] In another embodiment of this utility model, such as Figure 4 and Figure 7 As shown, the outer convex part of the groove protrusion 304 is arc-shaped, and the inner concave part of the protrusion concave block 305 is arc-shaped.

[0062] The protruding part of the groove protrusion 304 and the concave part of the protrusion concave block 305 are both arc-shaped. This is mainly because the side bending of the substrate cannot be formed in one step during the initial pressing. Therefore, the initial forming method is adopted. In addition, the contact surface of the arc-shaped structure makes it easier to bend the side of the substrate, which is convenient for subsequent pressing and forming.

[0063] In another embodiment of this utility model, such as Figure 9 and Figure 10 As shown, the cross-section of the protruding ring 414 is an isosceles trapezoidal structure, and the cross-section of the annular groove 415 is an isosceles trapezoidal. The protruding ring 414 fits into the annular groove 415.

[0064] Both the raised ring 414 and the annular groove 415 have isosceles trapezoidal cross sections, which facilitates further pressing of the initial pressed substrate side. The structures of the raised ring 414 and the annular groove 415 cooperate with each other, which can further press out substrate side with a tight fit between the two side structures.

[0065] In another embodiment of this utility model, such as Figure 1 and Figure 2 As shown, infrared heating lamps 416 are installed between horizontally adjacent conveyor rollers 2, and several temperature sensors 417 are installed on the inner wall of the forming frame 1. The temperature sensors 417 are of model PT-100.

[0066] The infrared heating lamp 416 is designed to heat and keep the insulation board warm during the pressing process, which is more conducive to the pressing and molding of the insulation board side. The polyurethane foam will not become an obstacle. The temperature sensor 417 is used to detect the temperature inside the molding frame 1. When the temperature is too low or too high, it is easy to adjust and control the infrared heating lamp 416.

[0067] In another embodiment of this utility model, such as Figure 1 As shown, the conveyor rollers 2 are arranged in pairs, one above the other, to form two rows of conveyor rollers 2.

[0068] The two rows of conveyor rollers 2 can not only convey the insulation board, but also provide support and upper pressure to prevent side deformation during the side pressing process.

[0069] In another embodiment of this utility model, such as Figure 1 and Figure 2As shown, extension rollers 5 are detachably installed at both ends of the conveyor roller 2, and the extension rollers 5 are sleeved on the shafts at both ends of the conveyor roller 2.

[0070] The extension roller 5 is designed to facilitate the support and conveying of insulation boards of different widths.

[0071] In another embodiment of this utility model, such as Figure 13 As shown, there are two limiting rings 408, which are evenly distributed on the rotating shaft 401. The two limiting rings 408 can effectively ensure the load-bearing strength of the rotating shaft 401 on the left half roller 402 and the right half roller 403.

[0072] In another embodiment of this utility model, such as Figures 11-13 As shown, the fixed threaded hole 412 is a countersunk hole, and the long bolt 413 is an internal hex bolt. The use of countersunk holes and internal hex bolts can prevent the nut from protruding and affecting the operation of the shaft roller.

[0073] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A polyurethane insulation board molding device, characterized in that, The equipment includes a forming frame (1), on which several conveying rollers (2) are horizontally rotatably arranged. Side forming components are arranged on both sides of the conveying rollers (2). The side forming components include a preliminary forming block device (3) and a forming pressure roller device (4). The preliminary forming block device (3) is arranged on both sides of the entrance of the forming frame (1). The forming pressure roller device (4) is vertically rotatably arranged and evenly distributed on the opposite inner sides of the forming frame (1). The preliminary forming pressing block device (3) includes a vertically arranged mounting plate (301) and a detachable pressing block. The mounting plate (301) has a horizontally opened slot (302). The detachable pressing block is provided with a retaining strip (303), which is engaged in the slot (302). The detachable pressing block includes a groove protrusion block (304) and a protrusion concave block (305). The groove protrusion block (304) protrudes outward, and the protrusion concave block (305) is formed with an inner groove. The groove protrusion block (304) and the protrusion concave block (305) are respectively arranged on the mounting plates (301) on both sides. The outward protrusion length of the groove protrusion block (304) increases continuously from the inlet direction to the outlet direction, and the inner groove depth of the protrusion concave block (305) increases continuously from the inlet direction to the outlet direction. The shape of the forming roller device (4) located on the same side is matched with the pressing structure of the preliminary forming block device (3) on the corresponding side.

2. The polyurethane insulation board molding device according to claim 1, characterized in that, The forming roller device (4) includes a rotating shaft (401) and a detachable forming roller. The detachable forming roller includes two types: a raised roller (405) and a concave roller (406). The raised roller (405) is composed of a raised left half roller (402) and a raised right half roller (403) with the same external shape. The concave roller (406) is composed of a concave left half roller (416) and a concave right half roller (417) with the same external shape. A raised ring (414) is formed outward from the middle of the raised roller (405). A ring groove (415) is formed inward from the middle of the concave roller (406). The external shapes of the raised roller (405) and the concave roller (406) are matched with each other. The raised ring (414) fits into the ring groove (415). Both the concave left half-roller (416) and the concave right half-roller (417) have semi-circular through grooves (407) along their axes. The two semi-circular through grooves (407) are combined to form a circular through hole. The rotating shaft (401) mates with the circular through hole. Several limiting rings (408) are formed on the rotating shaft (401). Limiting grooves (409) are formed on the inner wall of the circular through hole at the positions corresponding to the limiting rings (408). Several slots (410) are formed on one side of the mating surface of the concave left half-roller (416). The slots (410) are arranged in a row. On the other side of the mating surface of the concave left half roller (416), a plurality of insert plates (411) are provided. The distance between the insert plate (411) and the axis is the same as the distance between the slot (410) and the axis. A fixing threaded hole (412) is provided on the axial end face of the concave left half roller (416) at the position corresponding to the slot (410). The fixing threaded hole (412) passes through the slot (410). A round hole is provided on the insert plate (411) at the position corresponding to the fixing threaded hole (412). A long bolt (413) is provided in the fixing threaded hole (412). The concave right half roller (417) and the corresponding concave left half roller (416) are arranged symmetrically about the axis of the through hole. The raised left half roller (402) has the same inner structure as the concave left half roller (416), and the raised right half roller (403) has the same inner structure as the concave right half roller (417).

3. The polyurethane insulation board molding device according to claim 1, characterized in that, The slot (302) is a T-shaped slot or a dovetail slot, and the two ends of the slot (302) are through. The structure of the card strip (303) is matched with the structure of the slot (302).

4. The polyurethane insulation board molding device according to claim 1, characterized in that, The cross-section of the groove protrusion (304) is convex, and the cross-section of the protrusion concave block (305) is concave.

5. The polyurethane insulation board molding device according to claim 4, characterized in that, The outer convex portion of the groove protrusion (304) is arc-shaped, and the inner concave portion of the protrusion concave block (305) is arc-shaped.

6. The polyurethane insulation board molding apparatus according to claim 5, characterized in that, The cross-section of the protruding ring (414) is an isosceles trapezoid, and the cross-section of the annular groove (415) is an isosceles trapezoid.

7. The polyurethane insulation board molding device according to claim 1, characterized in that, Infrared heating lamps (6) are provided between the horizontally adjacent conveying rollers (2), and several temperature sensors (7) are provided on the inner side wall of the forming frame (1).

8. The polyurethane insulation board molding apparatus according to claim 7, characterized in that, The conveying rollers (2) are arranged in pairs, one above the other, to form two rows of conveying rollers (2).

9. The polyurethane insulation board molding apparatus according to claim 8, characterized in that, The conveying roller (2) is detachably provided with extension rollers (5) at both ends, and the extension rollers (5) are sleeved on the shafts at both ends of the conveying roller (2).

10. The polyurethane insulation board molding apparatus according to claim 1, characterized in that, The number of limiting rings (408) is at least two, and the limiting rings (408) are evenly distributed on the rotating shaft (401).

Images