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CN-121989547-A - Polyurethane edge-sealed rock wool composite board and preparation technology thereof

CN121989547ACN 121989547 ACN121989547 ACN 121989547ACN-121989547-A

Abstract

The invention discloses a polyurethane edge-sealed rock wool composite board and a preparation process thereof, and belongs to the technical field of composite board production. The process comprises the steps of uncoiling, edge cutting, profiling, gluing, pressing and sealing edges, solidifying, cutting and the like; the gluing mechanism comprises two support plates, a first driving motor, a first ball screw and a movable rod are arranged on the support plates, the end parts of the movable rod are connected with a glue storage box, glue spraying heads which face opposite directions up and down are arranged on the surfaces of the glue storage box, glue is sprayed on the upper surface, the lower surface and the opposite surfaces of the metal sheet respectively, the glue spraying heads are driven by the first driving motor to reciprocate to realize uniform gluing, the conveying mechanism comprises a movable plate, a plurality of rotating rollers with convex blocks are arranged on the side surfaces of the movable plate, the rotating rollers are driven by a third driving motor to synchronously rotate, and the machine is also provided with a leveling guide roller and an automatic tensioning mechanism. The invention realizes synchronous and uniform gluing and active stable conveying of multiple surfaces, avoids fiber damage on the surface of the rock wool board, and improves bonding quality and production efficiency.

Inventors

  • WANG ZHONGLONG
  • HU YEHONG
  • HU BAOJI

Assignees

  • 淄博铭霞建材有限公司

Dates

Publication Date
20260508
Application Date
20260410

Claims (10)

  1. 1. The preparation process of the polyurethane edge-sealed rock wool composite board is characterized by comprising the following steps of: step one, respectively placing steel plate coiled materials in an upper uncoiling mechanism and a lower uncoiling mechanism, and synchronously uncoiling; step two, coating films on the two rolls of metal sheet coiled materials, cutting edges, and simultaneously carrying out slitting rolling operation on cut edge materials; Step three, sequentially passing the two cut-edge metal sheets through a molding press or a forming machine to prepare a preset concave-convex shape; Step four, cutting the rock wool boards through a rock wool cutting device, stacking the cut rock wool boards on a conveying belt, and conveying the plurality of the rock wool boards which are orderly arranged and the metal sheets which are respectively arranged above and below the rock wool boards to a gluing mechanism through a conveying mechanism; fifthly, at the gluing mechanism, enabling the rock wool plate to be positioned between the two metal sheets, and then smearing glue on the contact surface of the rock wool plate and the two metal sheets through the gluing mechanism; synchronously outputting the glued rock wool boards and the two metal sheets to a pressing mechanism to form a combined board by pressing, and synchronously binding and extruding polyurethane mixture between the two metal sheets at the left side and the right side of the rock wool boards for edge sealing; Step seven, the combined plates enter a preheating system to be preheated; Step eight, the preheated plate enters an edge sealing curing device, and polyurethane mixture at two sides is extruded and heat-set to obtain a cured continuous plate; step nine, cutting the cured continuous plate into a preset length through a band saw cutting system; and step ten, automatically stacking by a stacking system, and finishing packaging by a packaging system.
  2. 2. The preparation process of the polyurethane edge-sealed rock wool composite board according to claim 1 is characterized in that the gluing mechanism comprises two supporting plates (9) which are arranged from top to bottom, a first driving motor (5) is arranged at the top of each supporting plate (9), a first ball screw (17) is arranged at the movable end of each first driving motor (5), one end of a movable rod (6) is arranged at the movable end of each first ball screw (17) in a connecting mode, the other end of each movable rod (6) extends to one side of the conveying mechanism and is connected with a glue storage box (4), the two glue storage boxes (4) are respectively located above and below the conveying mechanism, two glue spraying heads (3) which face opposite to each other from top to bottom are respectively arranged on the surfaces of the two glue storage boxes (4) and are respectively used for spraying glue on the upper surface and the lower surface of a rock wool board (44) and the opposite surfaces of two metal sheets (42).
  3. 3. The preparation process of the polyurethane edge-sealed rock wool composite board according to claim 2 is characterized in that a support (15) is installed between two support plates (9), support blocks (12) are installed on two symmetrical side faces of the support (15), bottoms of the support plates (9) are placed at tops of the two support blocks (12), guide rods (14) are installed at two ends of the support plates (9), bottom ends of the guide rods (14) penetrate through the tops of the support blocks (12) and extend to the lower portion of the support blocks, a second driving motor (13) is installed on two symmetrical side faces of the support (15), movable ends of the second driving motor (13) are sequentially connected with two worm gear transmission pieces (8) through transmission shafts (10), and top ends of worms in the two worm gear transmission pieces (8) are installed at the bottoms of the support plates (9).
  4. 4. The preparation process of the polyurethane edge-sealed rock wool composite board according to claim 2, wherein two pulley support plates (11) are arranged at the top of the support plate (9), pulleys (16) are arranged between the two pulley support plates (11), and the bottoms of the movable rods (6) are in sliding contact with the arc surfaces of the pulleys (16).
  5. 5. The preparation process of the polyurethane edge-sealed rock wool composite board according to claim 2, wherein a guide fixing frame (7) is installed at the top of the supporting plate (9), an installation groove (31) is formed in the surface of the guide fixing frame (7), the first ball screw (17) is installed in the installation groove (31), and two ends of a screw rod of the first ball screw (17) are installed at two ends of the inner wall of the installation groove (31) in a penetrating mode through bearings.
  6. 6. The process for preparing the polyurethane edge-sealed rock wool composite board according to claim 3, wherein the conveying mechanism comprises two symmetrically arranged fixed plates (22) positioned on one side of the support (15), movable plates (21) which are arranged in parallel are arranged between the two fixed plates (22), second electric cylinders (23) are arranged at two ends of the two fixed plates (22), movable ends of the second electric cylinders (23) penetrate through the side surfaces of the fixed plates (22) and are arranged on the side surfaces of the movable plates (21), a plurality of rotating rollers (25) are arranged on the side surfaces of the two movable plates (21) through concave-shaped seats (30), and a plurality of protruding blocks (27) are arranged along the circular arc surfaces of the rotating rollers (25).
  7. 7. The preparation process of the polyurethane edge-sealed rock wool composite board according to claim 6, wherein two coaxially fixed transmission gears (28) are connected to the tops of two adjacent rotating rollers (25) in the length direction of the movable board (21), and a transmission gear chain (29) is connected between the transmission gears (28) on the two adjacent rotating rollers (25); The rotating rollers (25) are positioned at the end parts and correspond to two positions along the width direction of the movable plate (21), one side of one transmission gear (28) above one rotating roller (25) is meshed with a guide gear (38), the guide gear (38) is arranged on the surface of the movable plate (21) through a rotating shaft, and the lower end of the other rotating roller (25) is connected with a third driving motor (24); A U-shaped ball screw mounting seat (41) is arranged between two corresponding rotating rollers (25) at two positions, two ends of a bidirectional spiral ball screw (36) are respectively mounted on two side inner walls of the ball screw mounting seat (41) through bearings, spiral directions of screws on the left side and the right side of the bidirectional spiral ball screw (36) are opposite, movable sliding sleeves (26) are respectively arranged on screws with opposite spiral directions of the bidirectional spiral ball screw (36), limiting grooves (39) are formed in the lower surface of the ball screw mounting seat (41), sliding blocks (40) are mounted on the lower portions of the two movable sliding sleeves, the sliding blocks (40) extend into the limiting grooves (39) and can slide along the limiting grooves (39), tensioning gears (37) are mounted on the two movable sliding sleeves (26) through rotating shafts, and annular tensioning gear chains (35) are mounted between the tensioning gears (37), the guide gears (38) and transmission gears (28) which are coaxially mounted with a third driving motor (24).
  8. 8. The preparation process of the polyurethane edge-sealed rock wool composite board according to claim 7 is characterized in that one end of a screw rod of the bidirectional screw ball screw (36) penetrates out of a ball screw mounting seat (41) and is provided with a driven gear (32) through a rotating shaft, one side of the driven gear (32) is meshed with a rack (34), one end of the rack (34) is slidably inserted into a groove at one end of a guide groove piece (33), and the other end of the guide groove piece (33) and the other end of the rack (34) are respectively mounted on two movable plates (21) through brackets.
  9. 9. The process for preparing the polyurethane edge-sealed rock wool composite board according to claim 7, wherein first electric cylinders (18) are arranged along the tail ends of the two fixed plates (22), a roller mounting plate (20) is arranged between the movable ends of the two first electric cylinders (18), and a leveling guide roller (19) is connected below the roller mounting plate (20).
  10. 10. The polyurethane edge-sealed rock wool composite board manufactured by the manufacturing process of the polyurethane edge-sealed rock wool composite board according to claim 1 is characterized by comprising two parallel and opposite metal sheets (42), wherein a rock wool board (44) and polyurethane strips (43) are arranged between the two metal sheets (42), and the side surfaces of the polyurethane strips (43) are in solidification connection with the side surfaces of the rock wool board (44).

Description

Polyurethane edge-sealed rock wool composite board and preparation technology thereof Technical Field The invention relates to the technical field of composite board production, in particular to a polyurethane edge-sealed rock wool composite board and a preparation process thereof. Background The polyurethane edge-sealed rock wool composite board is a novel building heat-insulating material, is composed of an upper metal sheet layer, a lower metal sheet layer, a middle rock wool heat-insulating layer and a polyurethane edge-sealed structure, has excellent heat-insulating property, fireproof property and structural strength, and is widely applied to building enclosure systems such as industrial plants, cold houses, clean workshops and the like. In the production process of the polyurethane edge-sealed rock wool composite board, a glue coating process between the rock wool board and the metal sheet is a key link for influencing the bonding quality of the composite board. The gluing mechanism in the prior art generally adopts a fixed glue spraying head, and the gluing is completed when the rock wool board slides on the slideway and passes under the glue spraying head. However, this glue application method has the following technical problems: In the prior art, the glue spraying head is usually installed on the frame at a fixed position, and the glue spraying angle and the glue spraying range of the glue spraying head cannot be adjusted. When the conveying speed of the rock wool board fluctuates, the board surface is slightly warped or the width specification changes, the fixed glue spraying track is difficult to accurately match with the actual surface of the rock wool board, glue amount accumulation is easily formed at the edge of the board surface, and a glue shortage area is formed at the middle part or the end part of the board surface. The partial lack of glue can directly reduce the bonding strength between the rock wool board and the metal sheet, quality defects such as stripping, hollowing and the like are easy to generate in long-term use, and excessive glue quantity not only causes glue waste, but also can overflow glue in the subsequent composite process, thereby influencing the board surface cleanliness and edge sealing quality, and even causing uneven foaming and molding of polyurethane in severe cases. In view of the above, the applicant devised a first generation of gumming mechanism, as shown in fig. 1. However, in the practical use process, the applicant finds that the mechanism has some technical problems that the rock wool board is usually conveyed by sliding by means of dead weight through an inclined slideway, the speed of the conveying mode is difficult to accurately control, and particularly when the gradient of the slideway and the friction coefficient of the board surface are changed, the rock wool board is easy to generate uneven sliding speed, offset and even clamping stagnation, so that the synchronism of the gluing time sequence is influenced. More importantly, the rock wool board is continuously rubbed with the surface of the slideway in the sliding process, so that the surface fiber is easy to break, pulverize or fall off, the microstructure of the surface of the rock wool board is damaged, and the infiltration and anchoring effect of glue and the rock wool base material are further weakened; because lifting of the slide rail causes shielding of the bottom of the rock wool board, single-sided glue spraying can only be carried out on the metal sheet below when glue is sprayed, glue spraying operation cannot be realized on the bottom of the rock wool board, so that the cohesive force is reduced, and the overall cohesive strength and durability of the composite board are finally affected. In summary, the existing gluing mechanism has obvious defects in the aspects of gluing uniformity, conveying stability and multi-surface synchronous gluing capability, and development of a novel gluing mechanism capable of realizing reciprocating type uniform gluing, active stable conveying and multi-surface synchronous gluing is needed to improve the overall quality and production efficiency of the polyurethane edge-sealed rock wool composite board. Disclosure of Invention The invention aims to solve the technical defects in the background art, and provides a polyurethane edge-sealed rock wool composite board and a preparation process thereof. In order to achieve the purpose, the technical scheme adopted by the invention is that the preparation process of the polyurethane edge-sealed rock wool composite board comprises the following steps of: step one, respectively placing steel plate coiled materials in an upper uncoiling mechanism and a lower uncoiling mechanism, and synchronously uncoiling; step two, coating films on the two rolls of metal sheet coiled materials, cutting edges, and simultaneously carrying out slitting rolling operation on cut edge materials; Step three, sequentially passing the