Polyurethane color steel plate and production process thereof

Abstract

The present application relates to polyurethane color steel plate technical field, specifically to a kind of polyurethane color steel plate and production process thereof, the upper and lower sides of polyurethane sandwich panel are respectively provided with color steel buckling plate and color steel backing plate, the surface of color steel buckling plate and color steel backing plate is all fixed with locating cone, locating cone is filled with fire-retardant powder, the one end of color steel buckling plate and color steel backing plate is all opened with slot one, and the sliding connection of two groups of slot one is connected with connecting plug;Beneficial effect is that: the polyurethane color steel plate and production process thereof proposed in the present application, after color steel buckling plate and color steel backing plate are buckled on the upper and lower sides of polyurethane sandwich panel, locating cone is inserted in polyurethane sandwich panel, the pre-fixing of color steel buckling plate, color steel backing plate connecting polyurethane sandwich panel is realized, and after connecting plug is pushed into the clamping groove on the surface of color steel buckling plate and color steel backing plate, the connection of color steel buckling plate and color steel backing plate is realized, so as to complete glue-free coating to realize the quick fixing of polyurethane sandwich panel, color steel buckling plate and color steel backing plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of polyurethane color steel plate, in particular to a polyurethane color steel plate and a production process thereof. BACKGROUND

[0002] Rigid polyurethane foam is prepared by the reaction of polyols and isocyanate in the presence of a blowing agent, a catalyst and a foam stabilizer. Due to the light weight, good thermal insulation and other characteristics of rigid polyurethane foam, it is widely used in urban heating pipelines, refrigeration equipment and other fields; it is important for rigid polyurethane foam to uniformly fill the cavity without leaving voids, so as to make the combination with the outer layer as good as possible, so as to prepare a stable structure that can ensure good thermal insulation. Rigid polyurethane foam has excellent performance, simple molding and convenient construction, and is widely used as various thermal insulation, shock absorption, sound insulation materials, lightweight structures and packaging materials.

[0003] In the prior art, a polyurethane sandwich panel is used inside the color steel plate to realize the heat preservation function of the building built by the color steel plate; usually, the polyurethane insulation board is inserted into the frame type color steel plate, and then the glue is applied between the color steel plate and the polyurethane sandwich panel to realize the connection. During construction, the peculiar smell generated by the glue is inhaled into the lungs of the workers, which is not good for health, and when the glue is not solidified, the polyurethane sandwich panel will be mis touched, which will cause the polyurethane sandwich panel and the color steel plate to be misaligned, and the position of the polyurethane sandwich panel needs to be adjusted again.

[0004] Therefore, we need a polyurethane color steel plate and a production process thereof to solve the problems caused by the connection of the existing polyurethane sandwich panel and the color steel plate by the glue, which can realize the quick connection and fixation of the polyurethane sandwich panel and the color steel plate. SUMMARY

[0005] The present application aims to provide a polyurethane color steel plate and a production process thereof to solve the problems caused by the connection of the existing polyurethane sandwich panel and the color steel plate by the glue, which can realize the quick connection and fixation of the polyurethane sandwich panel and the color steel plate.

[0006] To achieve the above object, the present invention provides the following technical solution: A polyurethane color steel plate, including a polyurethane sandwich panel, which is compounded by polyester polyol A and polyester polyol B. The hydroxyl value of polyester polyol A is 200-220mgKOH / g, the functionality is 2.2, the viscosity is 3000-6000Mpa·s, and the acid value is ≤1.5mgKOH / g. Polyester polyol B is a polyester polyol with a hydroxyl value of 430-500mgKOH / g and a functionality of 3. Color steel buckles and color steel support plates are respectively provided on the upper and lower sides of the polyurethane sandwich panel. Positioning cones are fixed on the surfaces of the color steel buckles and color steel support plates. Flame retardant powder is contained inside the positioning cones. A notch one is opened at one end of each of the color steel buckles and color steel support plates. A connecting insert is slidably connected between the two groups of notch ones. One end of the connecting insert is fixed on the surface of a connecting block. The connecting block is inserted into the notch one. An installation groove is opened on the surface of the connecting block. Plug blocks are inserted on both sides of the installation groove. The plug blocks penetrate through the connecting block and are inserted on the surface of the notch one. An assembly groove is opened on the surface of the color steel support plate. An assembly plate is inserted into the assembly groove. The assembly plate is fixed on the surface of the color steel buckle.

[0007] Preferably, the color steel buckle has a "C" - shaped plate structure. A raised plate is integrally formed on the surface of the color steel buckle, which matches the convex block on the surface of the polyurethane sandwich panel. The color steel support plate has a "C" - shaped plate structure. After the bottom surface of the color steel buckle overlaps with the top surface of the color steel support plate, the positioning cones on the surfaces of the color steel buckle and color steel support plate are inserted into the surface of the polyurethane sandwich panel, and the polyurethane sandwich panel is clamped between the color steel buckle and the color steel support plate.

[0008] Preferably, a loading bin is provided inside the positioning cone. The flame retardant powder is contained in the loading bin. A leakage hole is opened at one end of the positioning cone. A heat - melting film is fixed on the surface of the leakage hole. A feeding port is opened at the other end of the positioning cone. The feeding port is sleeved on a positioning plug. Positioning plugs are fixed on the surfaces of the color steel buckle and color steel support plate. A rubber ring is sleeved and fixed at one end of the positioning plug. The height of the positioning plug is greater than the depth of the feeding port. After the positioning plug is inserted into the feeding port, the rubber ring is stuck inside the loading bin.

[0009] Preferably, notch ones are opened on two parallel - distributed side plates of the color steel buckle and color steel support plate. The card slot is a "convex" - shaped slot. The connecting insert has an "I" - shaped plate structure. Two parallel - distributed plate bodies of the connecting insert are respectively slidably connected in two groups of card slots on the surfaces of the color steel buckle and color steel support plate.

[0010] Preferably, embedding grooves are opened on both the top surface and the bottom surface of the connecting insert. The embedding groove is a "U" - shaped slot. A rubber strip is fixed on the surface of the embedding groove. The rubber strip has a cylindrical structure. After the connecting insert is inserted into the card slot, the rubber strip is clamped between the card slot and the embedding groove and generates elastic deformation.

[0011] Preferably, the mounting groove is a circular groove, two through holes are symmetrically arranged on the circular arc side wall of the mounting groove, the insert block corresponds to the through hole, the insert block is movably inserted into the through hole, the insert block is inserted into the positioning slot after penetrating through the through hole, the positioning slot is arranged on the surface of the first missing groove, a through hole is arranged on the surface of the positioning slot, an elastic rubber belt is fixed on the surface of the through hole, and two ends of the elastic rubber belt are fixed on the two parallel side walls of the through hole.

[0012] Preferably, one end of the insert block towards the mounting groove is integrally formed with a table type plate, a limiting shaft is fixed on the surface of the mounting groove, the limiting shaft is a T-shaped cylinder, a rotating disc is sleeved on the outer side of the limiting shaft, a second missing groove is arranged on the surface of the rotating disc, the second missing groove corresponds to the insert block, when the rotating disc is rotated to be out of position with the insert block, the insert block is pushed by the rotating disc, at this time, the elastic rubber belt is stretched and deformed, when the rotating disc is rotated to be in position with the insert block, the elastic rubber belt rebounds to pull the insert block to move into the second missing groove, a push piece is fixed on the surface of the rotating disc, the push piece is a U-shaped piece, and the limiting shaft is arranged between the two parallel plate bodies of the push piece.

[0013] Preferably, two parallel side plates of the color steel supporting plate are each provided with a splicing groove, each group of splicing grooves is provided with two splicing grooves, and the two splicing grooves are symmetrically arranged about the center of the long side of the color steel supporting plate; and an anti-bending groove is arranged on the surface of the splicing plate, and the anti-bending groove is a wave-shaped groove.

[0014] Preferably, the color steel buckle plate and the color steel supporting plate are each fixed with a butt joint plate, the other side plate of the color steel buckle plate and the color steel supporting plate is each provided with an edge groove, and the butt joint plates are inserted into the edge grooves when the two groups of polyurethane sandwich panels are spliced side by side.

[0015] A polyurethane color steel plate production process comprises the following steps:

[0016] The fire-retardant powder is previously filled into the positioning cone, the positioning cone is inserted into the surface of the polyurethane sandwich panel, the positioning cone is inserted into the surface of the polyurethane sandwich panel, the positioning cone is inserted into the surface of the polyurethane sandwich panel, the positioning cone is inserted into the surface of the polyurethane sandwich panel, and the positioning cone is inserted into the surface of the polyurethane sandwich panel.

[0017] After the color steel buckle plate and the color steel supporting plate are buckled to clamp the polyurethane sandwich panel on both sides of the polyurethane sandwich panel, the connecting plug is inserted into the clamping grooves on the surfaces of the color steel buckle plate and the color steel supporting plate, and the color steel buckle plate and the color steel supporting plate are connected and fixed.

[0018] After the connecting block is pushed into the first missing groove, the rotating disc is pushed to push the two insert blocks into the positioning slots on both sides, the connecting block and the first missing groove are connected, and the connecting plug is prevented from being separated from the clamping groove.

[0019] Compared with the prior art, the polyurethane color steel plate production process has the following beneficial effects:

[0020] The polyurethane color steel plate and the production process thereof have the advantages that after the color steel buckling plate and the color steel supporting plate are buckled on the upper and lower sides of the polyurethane sandwich plate, the positioning cone is inserted into the polyurethane sandwich plate, the prefabricating of the color steel buckling plate and the color steel supporting plate when being connected with the polyurethane sandwich plate is realized, and after the connecting plug is pushed into the clamping groove on the surface of the color steel buckling plate and the color steel supporting plate, the connection of the color steel buckling plate and the color steel supporting plate is realized, so that the fast fixing of the polyurethane sandwich plate, the color steel buckling plate and the color steel supporting plate is realized without gluing, and the problems caused by the connection of the polyurethane sandwich plate and the color steel plate through the glue are further solved, and the fast connection and fixing of the polyurethane sandwich plate and the color steel plate can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present application;

[0022] Figure 2 It is Figure 1 It is an enlarged schematic diagram of the structure at A in the figure;

[0023] Figure 3 It is Figure 1 It is an enlarged schematic diagram of the structure at B in the figure;

[0024] Figure 4 It is Figure 1 It is a top view of the structure;

[0025] Figure 5 It is Figure 4 It is a sectional view of the structure at A-A in the figure;

[0026] Figure 6 It is Figure 5 It is an enlarged schematic diagram of the structure at C in the figure;

[0027] Figure 7 It is Figure 4 It is a sectional view of the structure at B-B in the figure;

[0028] Figure 8 It is Figure 7 It is an enlarged schematic diagram of the structure at D in the figure;

[0029] Figure 9 It is Figure 7 It is an enlarged schematic diagram of the structure at E in the figure;

[0030] Figure 10 It is a structural schematic diagram of the color steel buckling plate of the present application;

[0031] Figure 11 It is a structural schematic diagram of the plug block of the present application;

[0032] Figure 12 It is a structural schematic diagram of the plug-in strip and the connecting block of the present application;

[0033] Figure 13 It is a structural schematic diagram of the rotating disc of the present application;

[0034] Figure 14 Positioning cone structure schematic diagram of the present application;

[0035] Figure 15 Color steel supporting plate structure schematic diagram of the present application;

[0036] Figure 16 Positioning cone structure schematic diagram of the present application; Figure 15 Structure enlarged schematic diagram at F;

[0037] Figure 17 Positioning cone structure schematic diagram of the present application; Figure 1 Structure front view;

[0038] Figure 18 Positioning cone structure schematic diagram of the present application; Figure 17 Structure sectional view at C-C;

[0039] Figure 19 Positioning cone structure schematic diagram of the present application; Figure 18 Structure enlarged schematic diagram at H.

[0040] In the figure: polyurethane sandwich panel 1, color steel buckling plate 2, color steel supporting plate 3, slot one 4, clamping slot 5, connecting strip 6, embedding slot 7, rubber strip 8, connecting block 9, mounting slot 10, through hole 11, positioning slot 12, plug 13, through hole 14, elastic rubber belt 15, limiting shaft 16, rotating disc 17, slot two 18, push piece 19, assembling slot 20, assembling plate 21, anti-bending slot 22, butt joint plate 23, edge slot 24, positioning cone 25, charging bin 26, feeding port 27, positioning plug 28, rubber ring 29, leakage hole 30, hot melt film 31. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme of the present application clear, complete and the advantages more clear and obvious, the following will further describe the embodiments of the present application in combination with the drawings. It should be understood that the specific embodiments described here are part of the embodiments of the present application, not all the embodiments, and are only used to explain the embodiments of the present application, and do not limit the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0042] Embodiment one

[0043] Please refer to Figure 1 , Figure 4The application provides a technical scheme: a polyurethane color steel plate, comprising a polyurethane sandwich panel 1, the polyurethane sandwich panel 1 is compounded by polyester polyol A and polyester polyol B, the polyester polyol A has a hydroxyl value of 200-220 mgKOH / g, a functionality of 2.2, a viscosity of 3000-6000 Mpa·s, and an acid value of less than or equal to 1.5 mgKOH / g, and the polyester polyol B is a polyester polyol with a hydroxyl value of 430-500 mgKOH / g and a functionality of 3, the upper and lower sides of the polyurethane sandwich panel 1 are respectively provided with a color steel buckle plate 2 and a color steel support plate 3, the surfaces of the color steel buckle plate 2 and the color steel support plate 3 are both fixedly provided with a positioning cone 25, the inside of the positioning cone 25 is filled with flame-retardant powder, one end of the color steel buckle plate 2 and the color steel support plate 3 is both provided with a slot one 4, two groups of slot ones 4 are slidably connected with a connecting plug strip 6, one end of the connecting plug strip 6 is fixed on the surface of a connecting block 9, the connecting block 9 is inserted in the slot one 4, the surface of the connecting block 9 is provided with a mounting groove 10, the two sides of the mounting groove 10 are both inserted with a plug block 13, the plug block 13 penetrates through the connecting block 9 and is inserted on the surface of the slot one 4, the surface of the color steel support plate 3 is provided with an assembling groove 20, the assembling groove 20 is inserted with an assembling plate 21, and the assembling plate 21 is fixed on the surface of the color steel buckle plate 2; after the color steel buckle plate 2 and the color steel support plate 3 are buckled on the upper and lower sides of the polyurethane sandwich panel 1, the positioning cone 25 is inserted in the polyurethane sandwich panel 1, the pre-fixing of the color steel buckle plate 2, the color steel support plate 3 and the polyurethane sandwich panel 1 is realized, and after the connecting plug strip 6 is pushed into the clamping groove 5 on the surface of the color steel buckle plate 2 and the color steel support plate 3, the connection of the color steel buckle plate 2 and the color steel support plate 3 is realized, so that the fast fixing of the polyurethane sandwich panel 1, the color steel buckle plate 2 and the color steel support plate 3 is realized without gluing; further, the problems caused by the connection of the existing polyurethane sandwich panel and the color steel plate through a colloid are solved, and the fast connection and fixing of the polyurethane sandwich panel and the color steel plate can be realized.

[0044] Example two

[0045] Refer to the attached Figures 7 to 9 And Figure 14On the basis of embodiment one, in order to realize the pre-fixing of the color steel buckle plate 2 and the color steel support plate 3 after being buckled on the polyurethane sandwich panel 1, the color steel buckle plate 2 is in a "H" shaped plate structure, the surface of the color steel buckle plate 2 is integrally formed with a raised plate, the raised plate is matched with the protrusion on the surface of the polyurethane sandwich panel 1, the color steel support plate 3 is in a "H" shaped plate structure, after the bottom surface of the color steel buckle plate 2 is overlapped on the top surface of the color steel support plate 3, the positioning cones 25 on the surfaces of the color steel buckle plate 2 and the color steel support plate 3 are all inserted on the surface of the polyurethane sandwich panel 1, and the polyurethane sandwich panel 1 is clamped between the color steel buckle plate 2 and the color steel support plate 3; the inside of the positioning cone 25 is provided with a charging bin 26, the fire-retardant powder is contained in the charging bin 26, one end of the positioning cone 25 is provided with a material leakage hole 30, the surface of the material leakage hole 30 is fixed with a hot melt film 31, the other end of the positioning cone 25 is provided with a material pouring port 27, the material pouring port 27 is sleeved on a positioning plug 28, the surface of the color steel buckle plate 2 and the color steel support plate 3 is all fixed with the positioning plug 28, one end of the positioning plug 28 is sleeved and fixed with a rubber ring 29, the height of the positioning plug 28 is greater than the depth of the material pouring port 27, after the positioning plug 28 is inserted into the material pouring port 27, the rubber ring 29 is clamped in the inside of the charging bin 26; the two parallel distributed side plates of the color steel support plate 3 are all provided with an assembly groove 20, each group of assembly grooves 20 is provided with two, the two assembly grooves 20 are symmetrically distributed about the center of the long side of the color steel support plate 3, the surface of the assembly plate 21 is provided with an anti-bending groove 22, the anti-bending groove 22 is in a wave shape.

[0046] First, the color steel support plate 3 is placed on the ground, then the polyurethane sandwich panel 1 is pushed into the two parallel distributed side plates of the color steel support plate 3, the polyurethane sandwich panel 1 is pressed down, so that the positioning cone 25 on the surface of the color steel support plate 3 is inserted on the surface of the polyurethane sandwich panel 1, then the color steel buckle plate 2 is buckled above the polyurethane sandwich panel 1, the color steel buckle plate 2 is squeezed downward, and the assembly plate 21 on the surface of the color steel buckle plate 2 is inserted into the assembly groove 20, so as to ensure that the color steel buckle plate 2 and the color steel support plate 3 are aligned, the color steel buckle plate 2 is pressed down until the bottom surface of the color steel buckle plate 2 contacts the top surface of the color steel support plate 3, at this time, the positioning cone 25 on the surface of the color steel buckle plate 2 is also inserted on the surface of the polyurethane sandwich panel 1, so that the color steel buckle plate 2 and the color steel support plate 3 complete the pre-fixing of the polyurethane sandwich panel 1.

[0047] The reason for filling the positioning cone 25 with flame-retardant powder is to enhance the functionality of the positioning cone 25, so that the positioning cone 25 can not only achieve the pre-fixation of connecting the color steel gusset plate 2 and the color steel support plate 3 to the polyurethane sandwich panel 1, but also when a fire breaks out in the polyurethane sandwich panel 1, after the hot-melt film 31 at one end of the positioning cone 25 melts, the flame-retardant powder leaks out from the material leakage hole 30, playing a certain inhibitory role on the flame existing in the area facing the positioning cone 25 and reducing the impact of the fire; after the loading bin 26 is filled with the flame-retardant powder, when the feeding port 27 is aligned with the positioning insert block 28, the positioning cone 25 is pushed, so that the positioning insert block 28 is completely inserted into the feeding port 27. At this time, the rubber ring 29 is in the loading bin 26 to prevent the positioning cone 25 from falling off the positioning insert block 28 randomly. At this time, the positioning cone 25 can be welded or adhered to the surface of the color steel gusset plate 2 or the color steel support plate 3; further solving the problem of the disadvantages brought by connecting the existing polyurethane sandwich panel and the color steel plate through colloid, and realizing the quick connection and fixation of the polyurethane sandwich panel and the color steel plate.

[0048] Embodiment III

[0049] Refer to the appendix Figure 5 、 Figure 6 、 Figure 12 , on the basis of Embodiment II, in order to realize the connection and reinforcement after the color steel gusset plate 2 and the color steel support plate 3 are buckled on the polyurethane sandwich panel 1, notch 1 4 is opened on both of the two parallel side plates of the color steel support plate 3. The card slot 5 is a "convex" shaped slot, and the connecting strip 6 is an "I" shaped plate structure. The two parallel distributed plate bodies of the connecting strip 6 are respectively slidably connected in two groups of card slots 5 on the surfaces of the color steel gusset plate 2 and the color steel support plate 3; the top surface and the bottom surface of the connecting strip 6 are both provided with embedding grooves 7. The embedding groove 7 is a "U" shaped slot, and a rubber strip 8 is fixed on the surface of the embedding groove 7. The rubber strip 8 is a cylindrical structure. After the connecting strip 6 is inserted into the card slot 5, the rubber strip 8 is clamped between the card slot 5 and the embedding groove 7 and generates elastic deformation.

[0050] When the color steel gusset plate 2 and the color steel support plate 3 are wrapped on both sides of the polyurethane sandwich panel 1, the connecting strip 6 is simultaneously slid into the card slots 5 on the surfaces of the color steel gusset plate 2 and the color steel support plate 3 until the connecting block 9 is inserted into the notch 1 4. At this time, the two side plates of the connecting strip 6 respectively pull the color steel gusset plate 2 and the color steel support plate 3 to prevent the color steel gusset plate 2 and the color steel support plate 3 from separating, and the rubber strip 8 is clamped between the card slot 5 and the connecting strip 6 to prevent the connecting strip 6 from sliding out of the card slot 5 when there is no external tensile force; further solving the problem of the disadvantages brought by connecting the existing polyurethane sandwich panel and the color steel plate through colloid, and realizing the quick connection and fixation of the polyurethane sandwich panel and the color steel plate.

[0051] Embodiment IV

[0052] Refer to the appendix Figure 11 、 Figure 13 、Figures 16 to 19 On the basis of embodiment three, in order to achieve anti-disengagement limiting after the insertion of the connecting strip 6 into the clamping groove 5, the installation groove 10 is a circular groove, two through holes 11 are symmetrically arranged on the circular arc side wall of the installation groove 10, the plug blocks 13 and the through holes 11 are one-to-one corresponding, the plug blocks 13 are movably inserted into the through holes 11, the plug blocks 13 are inserted into the positioning slot 12 after penetrating through the through holes 11, the positioning slot 12 is arranged on the surface of the first gap 4, the surface of the positioning slot 12 is provided with a through hole 14, the surface of the through hole 14 is fixedly provided with an elastic rubber belt 15, both ends of the elastic rubber belt 15 are respectively fixed on the two parallel side walls of the through hole 11; the end of the plug block 13 facing the installation groove 10 is integrally formed with a table plate, the surface of the installation groove 10 is fixedly provided with a limiting shaft 16, the limiting shaft 16 is a "T" shaped cylinder, the outer side of the limiting shaft 16 is sleeved with a rotating disc 17, the surface of the rotating disc 17 is provided with a second gap 18, the second gap 18 and the plug block 13 are one-to-one corresponding, when the rotating disc 17 is rotated to be out of position with the plug block 13, the plug block 13 is pushed by the rotating disc 17, at this time, the elastic rubber belt 15 is elastically deformed, when the rotating disc 17 is rotated to be corresponding with the plug block 13, the elastic rubber belt 15 elastically deforms to pull the plug block 13 to move to the table plate inserted into the second gap 18, the surface of the rotating disc 17 is fixedly provided with a push piece 19, the push piece 19 is a "Fang" shaped piece, the limiting shaft 16 is between the two parallel plate bodies of the push piece 19.

[0053] When the connecting strip 6 is completely inserted into the clamping groove 5, that is, the connecting block 9 is inserted between the two first gaps 4 on the surface of the color steel buckle plate 2 and the color steel support plate 3, the rotating disc 17 is rotated around the limiting shaft 16 by pinching and pushing the push piece 19, until the second gap 18 is out of position with the table plate, at this time, the two groups of plug blocks 13 are pushed by the rotating disc 17, the plug blocks 13 elastically deform the elastic rubber belt 15, and one end of the plug block 13 is inserted into the positioning slot 12, so as to fix the connecting block 9 in the polyurethane sandwich panel 1; if it is needed to remove the connecting block 9 from the first gap 4, the rotating disc 17 is rotated by pinching and pushing the push piece 19, until the second gap 18 is corresponding with the table plate, at this time, the elastic rubber belt 15 elastically deforms to pull the plug block 13 to move, the table plate of the plug block 13 is inserted into the second gap 18, one end of the plug block 13 is separated from the positioning slot 12, at this time, the connecting block 9 is pulled out of the first gap 4, and the connecting block 9 drives the connecting strip 6 to be separated from the clamping groove 5; further solve the problem of the disadvantages caused by the connection of the existing polyurethane sandwich panel and color steel plate through colloid, and the polyurethane sandwich panel and the color steel plate can be quickly connected and fixed.

[0054] Embodiment five

[0055] On the basis of embodiment four, in order to realize seamless side-by-side connection of two adjacent polyurethane sandwich panels 1, the side plate of the color steel buckle plate 2 and the color steel support plate 3 is fixedly provided with a butt plate 23, the other side plate of the color steel buckle plate 2 and the color steel support plate 3 is provided with an edge groove 24, when the two groups of polyurethane sandwich panels 1 are assembled side by side, the butt plate 23 is inserted into the edge groove 24.

[0056] When the plurality of polyurethane sandwich panels 1 need to be connected side by side, the adjacent two polyurethane sandwich panels 1 are aligned, that is, the butt joint plate 23 on one side of a group of polyurethane sandwich panels 1 is inserted into the edge groove 24 on one side of another group of polyurethane sandwich panels 1, at this time, the surface of the edge groove 24 is punched by means of a drill penetrating the butt joint plate 23, then the butt joint plate 23 is fixed on the surface of the edge groove 24 by using a rivet or a screw, and the like, thereby further solving the problems caused by the connection of the existing polyurethane sandwich panel and the color steel plate through a colloid, and realizing the quick connection and fixation of the polyurethane sandwich panel and the color steel plate.

[0057] Embodiment six

[0058] On the basis of the embodiment five, a polyurethane color steel plate production process is proposed, including the following steps:

[0059] The fire-retardant powder is preloaded into the positioning cone 25, the positioning cone 25 is inserted into the surface of the polyurethane sandwich panel 1, and the surface of the color steel buckle plate 2 and the color steel support plate 3 is covered with the positioning cone 25, thereby not only avoiding the color steel buckle plate 2 and the color steel support plate 3 from falling off the surface of the polyurethane sandwich panel 1, but also the fire-retardant powder in the positioning cone 25 plays a certain role in fire-retardant control of fire.

[0060] After the color steel buckle plate 2 and the color steel support plate 3 are buckled on both sides of the polyurethane sandwich panel 1 to clamp the polyurethane sandwich panel 1, the connecting plug 6 is inserted into the clamping groove 5 on the surface of the color steel buckle plate 2 and the color steel support plate 3 at the same time, thereby realizing the connection and fixation of the color steel buckle plate 2 and the color steel support plate 3.

[0061] After the connecting block 9 is pushed into the missing slot one 4, the rotating disc 17 is actuated to push the two plug blocks 13 into the positioning plug slots 12 on both sides, thereby realizing the connection of the connecting block 9 and the missing slot one 4, and avoiding the connecting plug 6 from being separated from the clamping groove 5.

[0062] In actual use, first lay the color steel supporting plate 3 on the ground, then push the polyurethane sandwich panel 1 between the two parallel distribution of the side plate of the color steel supporting plate 3, press down the polyurethane sandwich panel 1, so that the positioning cone 25 on the surface of the color steel supporting plate 3 is inserted into the surface of the polyurethane sandwich panel 1, then buckle the color steel buckling plate 2 on the polyurethane sandwich panel 1, extrude the color steel buckling plate 2 downward, and the assembling plate 21 on the surface of the color steel buckling plate 2 is inserted into the assembling groove 20, to ensure that the color steel buckling plate 2 and the color steel supporting plate 3 are aligned, press down the color steel buckling plate 2 until the bottom surface of the color steel buckling plate 2 contacts the top surface of the color steel supporting plate 3, at this time the positioning cone 25 on the surface of the color steel buckling plate 2 is also inserted into the surface of the polyurethane sandwich panel 1, so the color steel buckling plate 2 and the color steel supporting plate 3 complete the pre-fixing of the polyurethane sandwich panel 1; The reason why the positioning cone 25 is filled with fire-retardant powder is to improve the functionality of the positioning cone 25, so that the positioning cone 25 not only realizes the pre-fixing of the polyurethane sandwich panel 1 by the color steel buckling plate 2 and the color steel supporting plate 3, but also when the polyurethane sandwich panel 1 encounters a fire, after the heat melting film 31 at one end of the positioning cone 25 melts, the fire-retardant powder leaks out of the leakage hole 30, which has a certain inhibitory effect on the flame existing in the area where the positioning cone 25 is directed, reducing the impact of the fire; After the inside of the charging bin 26 is filled with fire-retardant powder, align the positioning plug 28 with the feeding port 27, push the positioning cone 25 so that the positioning plug 28 is completely inserted into the feeding port 27, at this time the rubber ring 29 is in the charging bin 26, which prevents the positioning cone 25 from falling off the positioning plug 28 at will, at this time the positioning cone 25 can be welded or bonded to the surface of the color steel buckling plate 2 or the color steel supporting plate 3; After the color steel buckling plate 2 and the color steel supporting plate 3 are wrapped on both sides of the polyurethane sandwich panel 1, simultaneously slide the connecting plug 6 into the clamping groove 5 on the surface of the color steel buckling plate 2 and the color steel supporting plate 3, until the connecting block 9 is inserted into the missing slot one 4, at this time the two side plates of the connecting plug 6 are respectively drawn to the color steel buckling plate 2 and the color steel supporting plate 3, to avoid the separation of the color steel buckling plate 2 and the color steel supporting plate 3, and the rubber strip 8 is clamped between the clamping groove 5 and the connecting plug 6, to avoid the connecting plug 6 from sliding out of the clamping groove 5 without external tension; After the connecting plug 6 is completely inserted into the clamping groove 5, that is, after the connecting block 9 is inserted between the two missing slots one 4 on the surface of the color steel buckling plate 2 and the color steel supporting plate 3, the hand pinch plate 19 drives the rotating disc 17 to rotate around the limiting shaft 16, until the missing slot two 18 and the table-shaped plate are misaligned, at this time the two groups of plug blocks 13 are pushed by the rotating disc 17, the plug block 13 tensioning the elastic rubber belt 15 produces elastic deformation, and one end of the plug block 13 is inserted into the positioning slot 12, to realize the fixation of the connecting block 9 in the polyurethane sandwich panel 1; If it is necessary to remove the connecting block 9 from the missing slot one 4, rotate the rotating disc 17 by the hand pinch plate 19 until the missing slot two 18 and the table-shaped plate are aligned, at this time the elastic rubber belt 15 rebounds to pull the plug block 13 to move, the table-shaped plate of the plug block 13 is inserted into the missing slot two 18, and one end of the plug block 13 is separated from the positioning slot 12, at this time the connecting block 9 is pulled out of the missing slot one 4, and the connecting block 9 drives the connecting plug 6 to separate from the clamping groove 5.When the plurality of polyurethane sandwich panels 1 need to be connected side by side, two adjacent polyurethane sandwich panels 1 are aligned, that is, the butt joint plates 23 on one side of one group of polyurethane sandwich panels 1 are inserted into the edge grooves 24 on one side of another group of polyurethane sandwich panels 1, at this time, the surface of the edge groove 24 is punched by means of a drill penetrating the butt joint plate 23, then the butt joint plate 23 is fixed on the surface of the edge groove 24 by using a rivet or a screw.

[0063] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences of the principles and spirit of the application and that numerous modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. A polyurethane color steel plate, comprising a polyurethane sandwich panel (1), wherein the polyurethane sandwich panel (1) is compounded from polyester polyol A and polyester polyol B, wherein polyester polyol A has a hydroxyl value of 200-220 mgKOH / g, a functionality of 2.2, a viscosity of 3000-6000 MPa·s, and an acid value ≤1.5 mgKOH / g, and polyester polyol B is a polyester polyol with a hydroxyl value of 430-500 mgKOH / g and a functionality of 3, and color steel buckle plates (2) and color steel support plates (3) are respectively provided on the upper and lower sides of the polyurethane sandwich panel (1), characterized in that: The surfaces of the color steel buckle plates (2) and the color steel support plates (3) are both fixed with positioning cones (25). The interior of the positioning cones (25) contains flame retardant powder. One end of each of the color steel buckle plates (2) and the color steel support plates (3) is provided with a first notch (4). A connecting insert (6) is slidably connected between the two first notches (4). One end of the connecting insert (6) is fixed to the surface of a connecting block (9). The connecting block (9) is inserted into the first notch (4). An installation groove (10) is formed on the surface of the connecting block (9). Plug blocks (13) are inserted into both sides of the installation groove (10). The plug blocks (13) penetrate through the connecting block (9) and are inserted into the surface of the first notch (4). An assembly groove (20) is formed on the surface of the color steel support plate (3). An assembly plate (21) is inserted into the interior of the assembly groove (20). The assembly plate (21) is fixed to the surface of the color steel buckle plate (2); The installation groove (10) is a circular groove. Two through holes (11) are symmetrically formed on the arc side wall of the installation groove (10). The plug blocks (13) and the through holes (11) correspond to each other. The plug blocks (13) are movably inserted into the through holes (11). After the plug blocks (13) penetrate through the through holes (11), they are inserted into positioning slots (12). The positioning slots (12) are formed on the surface of the first notch (4). Through holes (14) are formed on the surface of the positioning slots (12). Elastic rubber bands (15) are fixed to the surfaces of the through holes (14). The two ends of the elastic rubber bands (15) are respectively fixed to the two parallel side walls of the through holes (11); A trapezoidal plate is integrally formed at one end of the plug block (13) facing the installation groove (10). A limiting shaft (16) is fixed to the surface of the installation groove (10). The limiting shaft (16) is a "T"-shaped cylinder. A rotating disc (17) is sleeved on the outer side of the limiting shaft (16). A second notch (18) is formed on the surface of the rotating disc (17). The second notch (18) and the plug block (13) correspond to each other. When the rotating disc (17) is rotated to a position where the second notch (18) is misaligned with the plug block (13), the plug block (13) is squeezed and pushed by the rotating disc (17). At this time, the elastic rubber bands (15) are stretched and deformed. When the rotating disc (17) is rotated to a position where the second notch (18) corresponds to the plug block (13), the elastic rubber bands (15) rebound and pull the plug block (13) to move until the trapezoidal plate is inserted into the second notch (18). A dial (19) is fixed to the surface of the rotating disc (17). The dial (19) is a "匚"-shaped plate. The limiting shaft (16) is located between the two parallel plates of the dial (19).

2. The polyurethane color steel plate according to claim 1, characterized in that: The color steel buckle plate (2) has a "匚"-shaped plate structure. A raised plate is integrally formed on the surface of the color steel buckle plate (2). The raised plate matches the convex block on the surface of the polyurethane sandwich panel (1). The color steel support plate (3) has a "匚"-shaped plate structure. After the bottom surface of the color steel buckle plate (2) is lapped on the top surface of the color steel support plate (3), the positioning cones (25) on the surfaces of the color steel buckle plate (2) and the color steel support plate (3) are both inserted into the surface of the polyurethane sandwich panel (1). The polyurethane sandwich panel (1) is clamped between the color steel buckle plate (2) and the color steel support plate (3).

3. The polyurethane color steel plate according to claim 1, characterized in that: Inside the positioning cone (25), there is a charging bin (26). The flame-retardant powder is filled in the charging bin (26). One end of the positioning cone (25) is provided with a material leakage hole (30). A heat-melt film (31) is fixed on the surface of the material leakage hole (30). The other end of the positioning cone (25) is provided with a feeding port (27). The feeding port (27) is sleeved on the positioning insert block (28). Positioning insert blocks (28) are fixed on the surfaces of the color steel buckle plate (2) and the color steel support plate (3). One end of the positioning insert block (28) is sleeved and fixed with a rubber ring (29). The height of the positioning insert block (28) is greater than the depth of the feeding port (27). After the positioning insert block (28) is inserted into the feeding port (27), the rubber ring (29) is stuck inside the charging bin (26).

4. A polyurethane color steel plate according to claim 1, characterized in that: On two parallel side plates of the color steel buckle plate (2) and the color steel support plate (3), there are respectively provided with notch one (4). The clamping groove (5) is a "convex"-shaped groove. The connecting insert bar (6) is an "I"-shaped plate structure. Two parallel plate bodies of the connecting insert bar (6) are respectively slidably connected in two groups of clamping grooves (5) on the surfaces of the color steel buckle plate (2) and the color steel support plate (3).

5. A polyurethane color steel plate according to claim 4, characterized in that: On the top surface and the bottom surface of the connecting insert bar (6), there are respectively provided with embedding grooves (7). The embedding groove (7) is a "U"-shaped groove. A rubber strip (8) is fixed on the surface of the embedding groove (7). The rubber strip (8) is a cylindrical structure. After the connecting insert bar (6) is inserted into the clamping groove (5), the rubber strip (8) is clamped between the clamping groove (5) and the embedding groove (7) and undergoes elastic deformation.

6. A polyurethane color steel plate according to claim 1, characterized in that: On two parallel side plates of the color steel support plate (3), there are respectively provided with assembling grooves (20). Each group of assembling grooves (20) has two. The two assembling grooves (20) are symmetrically distributed about the long side center of the color steel support plate (3). On the surface of the assembling plate (21), there is provided with a folding-resistant groove (22). The folding-resistant groove (22) is a wavy groove.

7. A polyurethane color steel plate according to claim 1, characterized in that: On one side plate of the color steel buckle plate (2) and the color steel support plate (3), there is respectively fixed with a butt joint plate (23). On the other side plate of the color steel buckle plate (2) and the color steel support plate (3), there are respectively provided with edge grooves (24). When two groups of polyurethane sandwich panels (1) are assembled side by side, the butt joint plate (23) is inserted into the edge groove (24).

8. A polyurethane color steel sheet production process according to any one of claims 1-7, characterized in that: It includes the following steps: Previously, load the flame-retardant powder into the positioning cone (25). Cover the surfaces of the color steel buckle plate (2) and the color steel support plate (3) with positioning cones (25). The positioning cones (2) are inserted on the surface of the polyurethane sandwich panel (1), which not only prevents the color steel buckle plate (2) and the color steel support plate (3) from falling off the surface of the polyurethane sandwich panel (1), but also the flame-retardant powder filled inside the positioning cone (25) plays a role in flame retardation and fire control. After buckling the color steel buckle plate (2) and the color steel support plate (3) on both sides of the polyurethane sandwich panel (1) to clamp the polyurethane sandwich panel (1), insert the connecting insert bar (6) into the clamping grooves (5) on the surfaces of the color steel buckle plate (2) and the color steel support plate (3) simultaneously to realize the connection and fixation of the color steel buckle plate (2) and the color steel support plate (3). After pushing the connecting block (9) into the first slot (4), turn the turntable (17) to push the two inserts (13) into the positioning slots (12) on both sides respectively, so as to connect the connecting block (9) and the first slot (4) and prevent the connecting strip (6) from coming off the slot (5).

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