A2-grade hard foam polyurethane insulation board continuous processing equipment and processing technology thereof

Abstract

The application discloses a kind of A2 grade hard foam polyurethane insulation board continuous processing equipment and its processing technology, belong to thermal insulation material processing technical field.Processing equipment includes polyurethane black material conveying device, polyurethane white material conveying device, high-pressure mixer, inorganic material conveying device, low-pressure mixer and pouring gun head, the output end of polyurethane black material conveying device and polyurethane white material conveying device are all communicated with the input end of high-pressure mixer, the output end of high-pressure mixer and inorganic material conveying device are all communicated with the input end of low-pressure mixer, the output end of low-pressure mixer is connected with the input end of pouring gun head, pouring gun head is installed on distributor, the upper side of pouring gun head is provided with upper coiled material, the lower side of pouring gun head is provided with lower coiled material.The A2 grade hard foam polyurethane insulation board continuous processing equipment and its processing technology of the application can solve the problem of inorganic filler settlement in pipeline after production stops, causing pipeline blockage.

Description

Technical Field

[0001] This invention relates to the field of thermal insulation material processing technology, specifically to a continuous processing equipment and processing technology for A2 grade rigid polyurethane foam insulation boards. Background Technology

[0002] Existing continuous production equipment for rigid polyurethane foam boards only has one mixing device at the end of the foaming machine. Therefore, inorganic materials can only be added to the composite white material and mixed before reacting with the black material. After the white material is directly mixed with the inorganic materials, the inorganic materials are prone to settling, which can easily cause blockage of the conveying pipeline after the equipment stops.

[0003] Therefore, it is necessary to provide a new type of continuous processing equipment and processing technology for A2 grade rigid polyurethane foam insulation boards. Summary of the Invention

[0004] Based on the above-mentioned problems in the existing technology, the purpose of this invention is to provide a continuous processing equipment and process for A2 grade rigid polyurethane foam insulation boards, which can solve the problem of inorganic filler settling in the pipeline after production stops, causing pipeline blockage.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A continuous processing equipment for A2 grade rigid polyurethane foam insulation boards is provided, including a polyurethane black material conveying device, a polyurethane white material conveying device, a high-pressure mixer, an inorganic material conveying device, a low-pressure mixer, and a casting gun head. The output ends of the polyurethane black material conveying device and the polyurethane white material conveying device are both connected to the input end of the high-pressure mixer. The output ends of the high-pressure mixer and the inorganic material conveying device are both connected to the input end of the low-pressure mixer. The output end of the low-pressure mixer is connected to the input end of the casting gun head. The casting gun head is mounted on a material distributor and reciprocates under the drive of the material distributor. An upper roll of material is provided above the casting gun head, and the upper roll of material is unwound by an uncoiler. A lower roll of material is provided below the casting gun head, and the lower roll of material is unwound by an uncoiler. A press is provided behind the casting gun head.

[0006] Furthermore, the continuous processing equipment for A2 grade rigid polyurethane foam insulation boards also includes a side sealing paper winding machine, which is arranged near the tail end of the press.

[0007] Furthermore, the side sealing paper wrapping machine includes a support, roller one, roller two, a wrapping module, a guide rod, a slide cylinder, and a linear module. Roller one is rotatably mounted on the support, and roller two is coaxially disposed at one end of roller one. Roller two is axially slidably mounted on the support and can rotate relative to the support. The wrapping module includes multiple support plates circumferentially distributed around roller one or roller two. The support plates are axially slidably mounted on roller one or roller two. The multiple support plates constitute support plate group one and support plate group two. The slide cylinder is axially slidably sleeved on roller one and / or roller two. The linear module can drive the slide cylinder to slide on roller one or roller two. The slide cylinder can selectively lock support plate group one or support plate group two and move support plate group one or support plate group two onto roller two so as to unload the side sealing paper wrapped by support plate group one or support plate group two located on roller two. At the same time, support plate group two or support plate group one remaining on roller one can continue to wrap the side sealing paper.

[0008] Furthermore, as the slide cylinder moves the first or second support plate assembly to the second roller, and then the slide cylinder continues to move from the first roller to the second roller, it can cause the second roller to disengage from the first roller, creating a gap between the first roller and the second roller.

[0009] Furthermore, both roller one and roller two are hollow cylindrical structures. Guide grooves communicating with the interior are provided on the outer peripheral walls of roller one and roller two along the axial direction. Roller one can rotate relative to roller two until the guide groove on roller one is aligned with the guide groove on roller two. The support plate is located on the outside of roller one or roller two, and ribs are provided on the inner side of the support plate. The ribs slide through the guide grooves, and the end of the ribs passing through the guide grooves and located inside roller one or roller two is provided with a limiting foot. The support plate can slide along the axial direction of roller one or roller two. At the same time, the support plate can slide along the radial direction of roller one or roller two through the ribs. The winding module also includes a pusher wheel and a second driver. The pusher wheel is retracted into the interior of roller one. The second driver is fixedly installed at the end of roller one away from roller two. The output end of the second driver is connected to the pusher wheel. Thus, when the pusher wheel is driven to rotate relative to roller one, it can selectively push the support plate of the first support plate group away from roller one to move and unfold, or push the support plate in the second support plate group away from roller one to move and unfold.

[0010] Furthermore, the end faces of roller one and roller two that are close to each other are provided with concave and convex alignment structures. When roller two slides toward roller one and abuts against roller one, and roller two rotates relative to roller one until the concave and convex alignment structures are engaged, the guide groove on roller one is aligned with the guide groove on roller two.

[0011] Furthermore, the interior of roller one is hollow to form hole one, and the interior of roller two is hollow to form hole two, the diameter of hole two being smaller than the diameter of hole one.

[0012] Furthermore, a guide rod is installed on the end of the bracket corresponding to the roller two away from the roller one. The roller two is slidably sleeved on the guide rod along the axial direction, and the roller two can rotate relative to the guide rod. An elastic element is provided between the guide rod and the roller two.

[0013] Furthermore, each of the ribs has a waist-shaped groove on its side, which extends radially along roller one or roller two. The slide cylinder has a hollow cylindrical structure and multiple axially extending slots one and two are provided on it. The ribs of the support plate of support plate group one pass through slot one, and the ribs of the support plate of support plate group two pass through slot two. A chamber one is provided on the side wall of the slide cylinder near slot one. A through hole is provided on the side wall of slot one, which connects to chamber one. A movable part is provided in the through hole. As the pressure in chamber one increases, it decreases. The pressure difference force can drive the movable part to extend into slot one, so that the movable part can engage with the support plate group. The sliding cylinder locks the support plate assembly one by retracting into the waist-shaped groove of the support plate assembly one or into the cavity one, thereby controlling the sliding cylinder to lock the support plate assembly one. The sliding cylinder has a cavity two located on the side wall near the second gap. The side wall of the second gap also has a through hole that connects to the cavity two. A movable part is installed in the through hole. As the pressure in the cavity two increases and decreases, the pressure difference can drive the movable part to extend into the second gap, so that the movable part can be engaged in the waist-shaped groove of the support plate assembly two, or retract into the cavity two, so that the movable part can be disengaged from the waist-shaped groove of the support plate assembly two, thereby controlling the sliding cylinder to lock the support plate assembly two.

[0014] To achieve the above objectives, the present invention also provides a continuous processing technology for A2 grade rigid polyurethane foam insulation boards, using the aforementioned continuous processing equipment for A2 grade rigid polyurethane foam insulation boards. The continuous processing technology for A2 grade rigid polyurethane foam insulation boards includes the following steps:

[0015] Step S1: The black and white materials in the polyurethane black material storage tank and the polyurethane white material storage tank are metered by metering pump one and metering pump two respectively, and then enter the high-pressure mixer for high-pressure atomization collision mixing. After being mixed evenly, they are transported to the low-pressure mixer.

[0016] Step S2: The inorganic materials stored in the inorganic material storage tank are metered by a metering instrument and then transported to the low-pressure mixer;

[0017] Step S3: The inorganic material measured by the metering instrument is mixed with the mixed black and white materials through a low-pressure mixer and then conveyed to the casting gun head.

[0018] Step S4: The pouring gun head located above the conveying platform pours the mixture obtained in step S3 onto the lower roll material. The mixture and the lower roll material enter the press synchronously with the upper roll material under the tension provided by the press through the conveying platform, and the foaming and molding process of rigid polyurethane foam insulation board is completed in the press.

[0019] The beneficial effects of this invention are as follows: The continuous processing equipment and processing technology for A2 grade rigid polyurethane foam insulation boards provided by this invention include a polyurethane black material conveying device, a polyurethane white material conveying device, a high-pressure mixer, an inorganic material conveying device, a low-pressure mixer, and a casting gun head. The output ends of the polyurethane black material conveying device and the polyurethane white material conveying device are both connected to the input end of the high-pressure mixer. The output ends of the high-pressure mixer and the inorganic material conveying device are both connected to the input end of the low-pressure mixer. The output end of the low-pressure mixer is connected to the input end of the casting gun head. The casting gun head is installed on a material distributor and reciprocates under the drive of the material distributor. An upper roll of material is provided above the casting gun head and is unwound by an uncoiler. A lower roll of material is provided below the casting gun head and is unwound by an uncoiler. A press is provided behind the casting gun head. Thus, through the above technical solutions, the processing equipment of the present invention adopts a two-step mixing process. First, the black material and white material are mixed under high pressure. Then, the mixed black material and white material are mixed with inorganic materials under low pressure in a low-pressure mixer. This prevents the inorganic materials from being directly mixed with the polyurethane white material, thereby effectively reducing the viscosity of the polyurethane white material and preventing the problem of inorganic materials settling and clogging the pipeline after production stops. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] In the picture: Figure 1 This is a schematic diagram of the structure of a continuous processing equipment for A2 grade rigid polyurethane foam insulation boards provided in an embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the side sealing paper wrapping machine in one working state according to an embodiment of the present invention.

[0023] Figure 3 This is a cross-sectional view of a side-sealing paper wrapping machine provided in an embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram showing the positional relationship between the winding module and the roller provided in an embodiment of the present invention.

[0025] Figure 5 This is a three-dimensional structural diagram of the support plate provided in an embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram illustrating the positional relationship between roller one and roller two, provided in an embodiment of the present invention.

[0027] Figure 7 for Figure 6 A sectional view.

[0028] Figure 8 This is a three-dimensional structural diagram of the slide provided in an embodiment of the present invention.

[0029] Figure 9 for Figure 8 The front view of the slide shown.

[0030] Figure 10 For along Figure 9 A cross-sectional view along the DD direction.

[0031] Figure 11 For along Figure 9 A cross-sectional view along the EE direction.

[0032] Figure 12 for Figure 9 Another perspective view of the slide shown.

[0033] Figure 13 For along Figure 12 A cross-sectional view along the FF direction.

[0034] Figure 14 Is Figure 13 A schematic diagram after adding the winding module.

[0035] Figure 15 This is a schematic diagram of the side-sealing paper wrapping machine provided in an embodiment of the present invention under another working state.

[0036] Figure 16 for Figure 15 The image shows a cross-sectional view of a side-sealing paper wrapping machine.

[0037] Figure 17 This is a structural schematic diagram of the side sealing paper wrapping machine provided in another working state according to an embodiment of the present invention.

[0038] Figure 18 for Figure 17 The image shows a cross-sectional view of a side-sealing paper wrapping machine.

[0039] The reference numerals in the figures are as follows: 100, Side sealing paper wrapping machine; 1, Support; 2, Roller 1; 21, Hole 1; 22, Driven wheel; 3, Roller 2; 31, Hole 2; 32, Retaining ring; 4, Wrapping module; 41, Support plate; 411, Rib plate; 412, Limiting foot; 42, Waist-shaped groove; 43, Pushing wheel; 431, High surface; 432, Low surface; 44, Driver 2; 45, Support plate group 1; 46, Support plate group 2; 5, Guide rod; 51, Elastic element; 6, Slide cylinder; 61, Gap 1; 62, Gap 2; 63, Chamber 1; 631, Flow channel 1; 632, Annular groove 1; 64, Chamber 2; 641, Flow channel 2; 642, Annular groove 2; 65, Through 66. Hole; 67. Moving part; 68. Air inlet sleeve; 69. Interface 1; 60. Interface 2; 61. Sliding sleeve; 7. Linear module; 8. Guide groove; 9. Driver 1; 101. Polyurethane black material storage tank; 1011. Metering pump 1; 102. Polyurethane white material storage tank; 1021. Metering pump 2; 103. High-pressure mixer; 104. Inorganic material storage tank; 1041. Meter; 105. Low-pressure mixer; 106. Casting gun head; 1061. Material distributor; 107. Uncoiler 1; 1071. Upper coil; 108. Uncoiler 2; 1081. Lower coil; 109. Press; 1000. Conveying platform; 2000. Polyurethane insulation board. Detailed Implementation

[0040] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0041] It should be noted that when a component is referred to as "connected to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0044] Throughout this specification, reference to "an embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of this application. Therefore, the phrases "in one embodiment," "in some embodiments," or "in some of these embodiments" appear in various places throughout the specification, and not all refer to the same embodiment. Furthermore, in one or more embodiments, a particular feature, structure, or characteristic may be combined in any suitable manner.

[0045] Please refer to Figure 1 As shown, an embodiment of the present invention provides a continuous processing equipment for A2 grade rigid polyurethane foam insulation boards. This continuous processing equipment includes a polyurethane black material conveying device, a polyurethane white material conveying device, a high-pressure mixer 103, an inorganic material conveying device, a low-pressure mixer 105, and a casting nozzle 106. The output ends of the polyurethane black material conveying device and the polyurethane white material conveying device are both connected to the input end of the high-pressure mixer 103. The high-pressure mixer 105 is connected to the input end of the inorganic material conveying device. The output ends are all connected to the input end of the low-pressure mixer 105, and the output end of the low-pressure mixer 105 is connected to the input end of the casting gun head 106. The casting gun head 106 is mounted on the material distributor 1061 and reciprocates under the drive of the material distributor 1061. An upper roll of material is provided above the casting gun head 106, which is unwound by an uncoiler 107. A lower roll of material is provided below the casting gun head 106, which is unwound by an uncoiler 108. A press 109 is provided behind the casting gun head 106. Thus, through the above technical solution, the processing equipment of the present invention adopts a two-step mixing process. First, the black material and white material are mixed under high pressure. The mixed black material and white material are then mixed with inorganic materials under low pressure in the low-pressure mixer 105, so that the inorganic materials are not directly mixed with the polyurethane white material, thereby effectively reducing the viscosity of the polyurethane white material and preventing the problem of inorganic material settling and clogging the pipeline after production stops.

[0046] like Figure 1 As shown, in some embodiments, the inorganic material conveying device includes an inorganic material storage tank 104 and a metering instrument 1041, which is connected between the inorganic material storage tank 104 and the low-pressure mixer 105 via a pipeline.

[0047] like Figure 1 As shown, in some embodiments, the low-pressure mixer 105 is a screw conveyor.

[0048] like Figure 1 As shown, in some embodiments, the polyurethane black material conveying device includes a polyurethane black material storage tank 101 and a metering pump 1011. The metering pump 1011 is connected to the black material storage tank and the black and white material high-pressure mixer via pipelines. The polyurethane white material conveying device includes a polyurethane white material storage tank 102 and a metering pump 1021. The metering pump 1021 is connected to the polyurethane white material storage tank 102 and the high-pressure mixer 103 via pipelines.

[0049] In some embodiments, the low-pressure mixer 105 is a screw conveyor, which includes a mixer housing and a conveying screw disposed within the mixer housing.

[0050] In some embodiments, a conveying platform 1000 is provided between the uncoiler 108 and the press 109, and the unwound material 1081 is conveyed from the conveying platform 1000 to the press 109.

[0051] The casting nozzle 106 pours the mixture onto the lower roll 1081. When the mixture and the lower roll 1081 enter the press 109 simultaneously with the upper roll 1071 under the tension provided by the press 109 via the conveyor platform 1000, side sealing paper needs to be used to seal the mixture on both sides. This is to prevent the mixture from flowing out of the upper and lower rolls and to prevent the side chain blocks on both sides of the press 109 from sticking to the mixture. While the mixture foams between the upper and lower rolls, it enters the press 109 together with the rolls to form and cure. The continuously formed polyurethane insulation board 2000 is pushed out from the tail end of the press 109 by the two closed conveyor belts on the upper and lower sides of the press 109. At this time, the side sealing paper on both sides of the polyurethane insulation board 2000 needs to be torn off in time and at the same time. Existing side-sealing paper wrapping machines require stopping after wrapping a certain thickness of side-sealing paper to remove the wrapped paper. This affects the continuous operation of the A2-grade rigid polyurethane foam insulation board continuous processing equipment and impacts its production efficiency. Therefore, the A2-grade rigid polyurethane foam insulation board continuous processing equipment provided in this embodiment of the invention further includes a side-sealing paper wrapping machine 100, which is located near the tail end of the press 109.

[0052] like Figures 2-18As shown, in some embodiments, the side-sealing paper wrapping machine 100 includes a support 1, a first roller 2, a second roller 3, a wrapping module 4, a guide rod 5, a slide cylinder 6, and a linear module 7. The first roller 2 is rotatably fitted onto the support 1, and the second roller 3 is coaxially disposed at one end of the first roller 2. The second roller 3 is axially slidably fitted onto the support 1 and can rotate relative to the support 1. The wrapping module 4 includes multiple support plates 41 circumferentially distributed around the first roller 2 or the second roller 3. The support plates 41 are axially slidably fitted onto the first roller 2 or the second roller 3. The multiple support plates 41 constitute a first support plate group 45 and a second support plate group 46. The slide cylinder 6 is axially slidably sleeved onto the first roller 2 and / or the second roller 3. On roller 2 3, the linear module 7 can drive the slide cylinder 6 to slide on roller 1 2 or roller 2 3. The slide cylinder 6 can selectively lock the support plate group 1 45 or support plate group 2 46 and move the support plate group 1 45 or support plate group 2 46 onto roller 2 3 so as to unload the side sealing paper wrapped by the support plate group 1 45 or support plate group 2 46 located on roller 2 3. At the same time, the support plate group 2 46 or support plate group 1 45 remaining on roller 1 2 can continue to wrap the side sealing paper, realizing continuous operation without stopping the machine to unload the side sealing paper. This conforms to the continuous operation of the A2 grade rigid polyurethane foam insulation board continuous processing equipment and will not affect the production efficiency of the A2 grade rigid polyurethane foam insulation board continuous processing equipment.

[0053] The slide 6 drives the support plate assembly 1 45 or the support plate assembly 2 46 to move onto the roller 2 3, such as Figure 17 As shown, the slide cylinder 6 then continues to move from roller 2 to roller 3, which can drive roller 3 to disengage from roller 2, creating a gap between roller 2 and roller 3, so that the side sealing paper wrapped by the support plate group 45 or support plate group 46 on roller 3 can be unloaded from the gap. After the support plate group 45 or support plate group 46 on roller 3 has finished unloading the side sealing paper, the slide cylinder 6 drives the support plate group 45 or support plate group 46 from roller 3 to roller 2 through the drive of the linear module 7, so that the support plate group 45 or support plate group 46 returns to roller 2. This cycle repeats, so that the support plate group 45 or support plate group 46 alternately performs the unloading and winding of the side sealing paper, so that the side sealing paper winding machine 100 provided in this embodiment of the invention can achieve continuous non-stop operation.

[0054] like Figure 6 and Figure 7 As shown, in some embodiments, roller 2 and roller 3 are both hollow cylindrical structures. Guide grooves 8 communicating with the interior are axially formed on the outer peripheral walls of both roller 2 and roller 3. Roller 2 can rotate relative to roller 3 until the guide groove 8 on roller 2 aligns with the guide groove 8 on roller 3. Figure 4 and Figure 5As shown, the support plate 41 is located on the outside of roller 2 or roller 3. A rib 411 is provided on the inner side of the support plate 41. The rib 411 slides through the guide groove 8, and a limiting foot 412 is provided at the end of the rib 411 that passes through the guide groove 8 and is located inside roller 2 or roller 3. This allows the support plate 41 to slide not only axially along roller 2 or roller 3, but also radially along roller 2 or roller 3 via the rib 411. When the rib 411 slides radially towards or away from roller 2 or roller 3, it drives the support plate 41 to move closer to or away from the outer peripheral wall of roller 2 or roller 3. Figure 4 and Figure 5 As shown, the winding module 4 also includes a pushing wheel 43 and a second driver 44. The pushing wheel 43 is housed inside the first roller 2. The second driver 44 is fixedly installed at the end of the first roller 2 away from the second roller 3. The output end of the second driver 44 is connected to the pushing wheel 43. Thus, when the pushing wheel 43 is driven to rotate relative to the first roller 2, it can selectively push the support plate 41 of the first support plate group 45 away from the first roller 2 to move and unfold, or push the support plate 41 in the second support plate group 46 away from the first roller 2 to move and unfold. That is, when the pushing wheel 43 pushes the support plate 41 in the first support plate group 45 or the second support plate group 46 away from the first roller 2 to move and unfold, the support plate 41 in the second support plate group 46 or the first support plate group 45 can move and retract closer to the first roller 2. In this way, the pushing wheel 43 can force the support plate 41 of the first support plate group 45 or the second support plate group 46 that needs to be extended outward, so that the extended support plate group 45 or the second support plate group 46 can move and retract closer to the first roller 2. The support plate 41 protrudes from the support plate 41 in the retracted support plate group 46 or support plate group 45. In this way, when the support plate 41 in the retracted support plate group 45 or support plate group 46 is wrapped with the side sealing paper, the support plate 41 in the retracted support plate group 46 or support plate group 45 can retract when it moves onto the roller 2, so that the retracted support plate group 46 or support plate group 45 will not be obstructed by the side sealing paper wrapped on the support plate group 45 or support plate group 46. At the same time, it prevents the side sealing paper from being wrapped on both support plate group 2 and support plate group 45 at the same time, which would prevent the support plate group 2 and support plate group 45 from being unable to separate. Alternatively, when the support plate group 1 or support plate group 2 moves onto the roller 3, the outer wall of the support plate 41 can be detached from the wrapped side sealing paper by retracting, so that the side sealing paper originally wrapped on the retracted support plate group 1 or support plate group 2 can be easily removed.

[0055] In some embodiments, roller 2 and roller 3 have concave-convex alignment structures (not shown) on their close and opposite end faces. When roller 3 slides toward roller 2 and abuts against roller 2, and roller 3 rotates relative to roller 2 until the concave-convex alignment structures engage, the guide groove 8 on roller 2 aligns with the guide groove 8 on roller 3. This allows roller 3 and roller 2 to rotate synchronously in the circumference. On the other hand, after the guide grooves 8 on roller 2 and roller 3 are aligned, the support plate 41 can slide from roller 2 to roller 3 or from roller 3 to roller 2 via the guide groove 8. This allows the positions of support plate group 1 45 and support plate group 2 46 in the winding module 4 to be switched between roller 2 and roller 3. This results in support plate group 1 45 and support plate group 2 46 being simultaneously located on roller 2, support plate group 1 45 and support plate group 2 46 being located on roller 2 and roller 3 respectively, or support plate group 1 45 and support plate group 2 46 being located on roller 3 and roller 2 respectively. In some embodiments, the concave-convex alignment structure can be a protrusion on the end face of roller 2 near roller 3 and a groove on the end face of roller 3 near roller 2. When the protrusion and the groove are aligned and inserted, the main function is to make the guide grooves 8 on roller 23 and roller 2 aligned and connected, so that the support plate 41 can switch positions between roller 23 and roller 2.

[0056] like Figure 7 As shown, in some embodiments, the interior of roller 2 is hollow to form hole 21, and the interior of roller 3 is hollow to form hole 31. The diameter of hole 31 is smaller than that of hole 21. When the limiting foot 412 slides along the inner wall of hole 21 toward the inner wall of hole 31, it will force the support plate 41 to move closer to roller 3, causing the support plate assembly 45 or support plate assembly 46 that has moved onto roller 3 to retract, so that the side sealing paper wrapped on the support plate assembly 45 or support plate assembly 46 can be removed from the support plate 41 of the support plate assembly 45 or support plate assembly 46.

[0057] like Figure 6 As shown, in some embodiments, a retaining ring 32 is fitted on the second roller 3. When the slide cylinder 6 moves from the first roller 2 to the second roller 3 until the slide cylinder 6 abuts against the retaining ring 32, the slide cylinder 6 continues to move from the first roller 2 to the second roller 3. The abutment between the slide cylinder 6 and the retaining ring 32 can drive the second roller 3 to move axially and disengage from the first roller 2, so that a gap for unloading the side sealing paper is created between the first roller 2 and the second roller 3.

[0058] like Figure 3As shown, in some embodiments, a guide rod 5 is installed on the end of the support 1 corresponding to the roller 2 3 away from the roller 1 2. The roller 2 3 is slidably sleeved on the guide rod 5 along the axial direction, and the roller 2 3 can rotate relative to the guide rod 5. An elastic element 51 is provided between the guide rod 5 and the roller 2 3. In this way, when the roller 2 3 and the roller 1 2 are in abutting contact, the guide rod 5 can play a role in stabilizing the rotation of the roller 2 3. When the slide cylinder 6 moves from the roller 1 2 to the roller 2 3 and drives the roller 2 3 to disengage from the roller 1 2, the guide rod 5 will play a role in sliding guidance of the roller 2 3. At the same time, it will compress the elastic element 51. When the slide cylinder 6 moves towards the roller 1 2, the roller 2 3 can move towards the roller 1 2 by itself under the action of the elastic restoring force of the elastic element 51 until it abuts against the roller 1 2.

[0059] In some embodiments, the sides of the rib plate 411 are provided with waist-shaped grooves 42, which extend radially along roller 2 or roller 3, such as... Figure 8 As shown, the slide cylinder 6 has an internally hollow cylindrical structure. Multiple axially extending slots 61 and multiple axially extending slots 62 are provided on the slide cylinder 6. The ribs 411 of the support plate 41 of the support plate assembly 45 pass through slot 61, and the ribs 411 of the support plate 41 of the support plate assembly 46 pass through slots 62. Figure 13 As shown, a chamber 63 is provided on the side wall of the slide cylinder 6 near the gap 61. A through hole 65 is provided on the side wall of the gap 61, which connects to the chamber 63. A movable part 66 is provided in the through hole 65. As the pressure in the chamber 63 increases and then decreases, the pressure difference can drive the movable part 66 to extend into the gap 61, so that the movable part 66 can engage with the waist-shaped groove 42 of the support plate 41 of the support plate assembly 45, or retract into the chamber 63, so that the movable part 66 can disengage from the waist-shaped groove 42 of the support plate 41 of the support plate assembly 45. This controls the slide cylinder 6 to lock the support plate assembly 45, so that the support plate assembly 45 moves with the slide cylinder 6. The slide cylinder 6 has a second chamber 64 located on its side wall near the second slit 62. The side wall of the second slit 62 also has a through hole 65 connecting to the second chamber 64. A movable part 66 is located in the through hole 65. As the pressure inside the second chamber 64 increases and then decreases, the pressure difference forces the movable part 66 to extend into the second slit 62, allowing it to engage with the waist-shaped groove 42 of the support plate 41 of the second support plate assembly 46, or to retract into the second chamber 64, causing the movable part 66 to disengage from the waist-shaped groove 42 of the support plate 41 of the second support plate assembly 46. This controls the slide cylinder 6 to lock the second support plate assembly 46, thereby moving the second support plate assembly 46 with the slide cylinder 6. Through this technical solution, the slide cylinder 6 can selectively lock either the first support plate assembly 45 or the second support plate assembly 46. Specifically, the movable part 66 can be a pin that slides in the through hole 65, so that the pin can move in and out under the action of pressure difference to achieve the locking and unlocking action; or the movable part 66 can be a flexible block that is sealed in the through hole 65, so that the flexible block can deform and move outward or inward under the action of pressure difference to achieve the locking and unlocking action.

[0060] Due to the presence of the waist-shaped groove 42, when the support plate group 1 45 or support plate group 2 46, which is pushed and unfolded on roller 1 2 by the pusher wheel 43, is locked by the slide cylinder 6 and moved to roller 2 3, and the diameter of hole 2 31 on roller 2 3 is smaller than the diameter of hole 21 on roller 1 2, it will resist the abutting friction between the movable part 66 and the waist-shaped groove 42, forcing the support plate 41 on roller 2 3 to retract. When the movable part 66 moves to the side of the waist-shaped groove 42 close to the support plate 41, the movable part 66 will still form a resisting friction with the waist-shaped groove 42, so that when the slide cylinder 6 moves the support plate group 1 45 or support plate group 2 46 to roller 1 2, the frictional resistance of the movable part 66 will keep the support plate 41 locked by the slide cylinder 6 in a retracted state, so as to avoid the support plate group 2 46 or support plate group 1 45 on roller 1 2 that is used for winding side sealing paper.

[0061] like Figure 3 or Figure 8 As shown, in some embodiments, a sliding sleeve 68 is rotatably fitted on the end of the slide cylinder 6 located near the support plate 41 and close to the roller 2 3. The sliding sleeve 68 is fixedly connected to the output end of the linear module 7. In this way, while the linear module 7 drives the slide cylinder 6 to make linear motion through the sliding sleeve 68, the slide cylinder 6 can rotate with the roller 2, so that the linear motion of the linear module 7 and the circumferential motion of the slide cylinder 6 do not interfere with each other.

[0062] like Figure 8 As shown, a gas receiving sleeve 67 is rotatably fitted on the slide cylinder 6. The gas receiving sleeve 67 is fixedly connected to the slide sleeve 68. The gas receiving sleeve 67 is provided with interface 1 671 and interface 2 672. Interface 1 671 is connected to chamber 1 63, and interface 2 672 is connected to chamber 2 64. Thus, high-pressure media can be injected or discharged into chamber 1 63 and chamber 2 64 respectively through pipeline connection via interface 1 671 and interface 2 672, so as to control the pressure in chamber 1 63 and chamber 2 64 respectively, so as to control the extension and retraction of the movable part 66 in slot 1 61 or slot 2 62. The slide cylinder 6 can rotate with roller 2, so that the gas receiving sleeve 67 will not rotate with the slide cylinder 6, realizing the pipeline connection of interface 1 671 and interface 2 672.

[0063] like Figure 10 and Figure 11As shown, the slide cylinder 6 has annular grooves 632 and 642 spaced apart along its axial direction. Annular groove 632 connects to chamber 63, and the port 671 on the air-connecting sleeve 67 is aligned with and communicates with annular groove 632. Annular groove 642 connects to chamber 64, and the port 672 on the air-connecting sleeve 67 is aligned with and communicates with annular groove 642. More precisely, the slide cylinder 6 has a flow channel 631 connecting chamber 63 and annular groove 632, and a flow channel 641 connecting chamber 64 and annular groove 642. Flow channels 631 and 641 are distributed radially spaced along the slide cylinder 6, so that flow channels 631 and 641 avoid each other and do not intersect, ensuring that the port 671 and port 672 can independently control the pressure of chamber 63 and chamber 64.

[0064] like Figure 4 As shown, in some embodiments, the support plates 41 in the first support plate group 45 are arranged at intervals along the circumference of the first roller 2 or the second roller 3, and the support plates 41 in the second support plate group 46 are also arranged at intervals along the circumference of the first roller 2 or the second roller 3. The support plates 41 in the second support plate group 46 are sandwiched between two adjacent support plates 41 in the first support plate group 45, so that the first support plate group 45 and the second support plate group 46 are evenly distributed in the circumference.

[0065] like Figure 2 As shown, in some embodiments, the side-sealing paper wrapping machine 100 further includes a driver 9 mounted on the bracket 1. The driver 9 is a drive device that outputs circumferential motion power. The output end of the driver 9 is connected to the roller 2 for transmission, so as to drive the roller 2 to rotate. Figure 3 As shown, specifically, a driven wheel 22 is sleeved on roller 2, and the driven wheel 22 is connected to the output end of driver 9 through a synchronous belt structure.

[0066] like Figure 2As shown, in the initial state, both support plate group one 45 and support plate group two 46 are located on roller one 2. At the same time, the high surface 431 of the pushing wheel 43 corresponds to support plate group one 45, thereby pushing support plate group one 45 out and unfolding it. Support plate group two 46 corresponds to the low surface 432 of the pushing wheel 43, and the support plate 41 in support plate group two 46 is in a retracted state. The slide cylinder 6 locks support plate group two 46, keeping the support plate 41 in support plate group two 46 in a retracted state. The driver one 9 drives roller one 2 to rotate, and the side sealing paper is wound around the unfolded support plate group one 45 on roller one 2. After the support plate group one 45 is wound, the slide cylinder 6 is converted to lock the unfolded support plate group one 45, and the linear module 7 controls the slide cylinder 6 to drive support plate group one 45 and the wound side sealing paper to move towards roller two 3. At the same time, the pushing wheel 43 rotates. The second support plate assembly 46 is unfolded, and the cut end of the side sealing paper is wrapped around the second support plate assembly 46. At the same time, the slide cylinder 6 continues to drive the first support plate assembly 45 to move and cause the second roller 3 to disengage from the first roller 2. At this time, the side sealing paper wrapped on the first support plate assembly 45 can be unwound to the second roller 3 and discharged from the gap between the first roller 2 and the second roller 3. Then, the linear module 7 controls the slide cylinder 6 to move closer to the first roller 2, moving the first support plate assembly 45 onto the first roller 2. The slide cylinder 6 locks the first support plate assembly 45 into a retracted state. After the second support plate assembly 46 is finished winding, the slide cylinder 6 locks the unfolded second support plate assembly 46. The slide cylinder 6 moves and moves the second support plate assembly 46 onto the second roller 3. The pusher wheel 43 pushes the first support plate assembly 45 to unfold. This cycle repeats, so that the first support plate assembly 45 and the second support plate assembly 46 alternately perform the winding work and the discharge of the side sealing paper.

[0067] This invention also provides a continuous processing technology for A2 grade rigid polyurethane foam insulation boards. Using the continuous processing equipment for A2 grade rigid polyurethane foam insulation boards provided in any of the above embodiments, the continuous processing technology for A2 grade rigid polyurethane foam insulation boards includes the following steps:

[0068] In step S1, the black and white materials in the polyurethane black material storage tank 101 and the polyurethane white material storage tank 102 are metered by metering pump 1011 and metering pump 21 respectively, and then enter the high-pressure mixer 103 for high-pressure atomization collision mixing. After being mixed evenly, they are transported to the low-pressure mixer 105.

[0069] Step S2: The inorganic materials stored in the inorganic material storage tank 104 are metered by the metering instrument 1041 and then transported to the low-pressure mixer 105.

[0070] Step S3: The inorganic material measured by the metering instrument 1041 is mixed with the mixed black material and white material through the low-pressure mixer 105 and then conveyed to the casting gun head 106.

[0071] Step S4: The pouring gun head 106 located above the conveying platform 1000 pours the mixture obtained in step S3 onto the lower roll 1081. The mixture and the lower roll 1081 enter the press synchronously with the upper roll 1071 under the tension provided by the press 109 through the conveying platform 1000, and the foaming and molding process of the rigid polyurethane foam insulation board 2000 is completed in the press 109.

[0072] Step S5: The foamed polyurethane insulation board 2000 is transported by the crawler conveyor to the cutting device for cutting. After the polyurethane insulation board 2000 is cut into shape, it is sent by the guide rail into the flipping and stacking device for stacking.

[0073] Step S6: The stacked polyurethane insulation boards 2000 are transported by transport equipment to the insulation room for constant temperature aging to finally form the final product.

[0074] Step S7: Package and ship.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A continuous processing equipment for A2 grade rigid polyurethane foam insulation boards, characterized in that: The equipment includes a polyurethane black material conveying device, a polyurethane white material conveying device, a high-pressure mixer, an inorganic material conveying device, a low-pressure mixer, and a casting gun head. The outputs of the polyurethane black material conveying device and the polyurethane white material conveying device are connected to the input of the high-pressure mixer. The outputs of the high-pressure mixer and the inorganic material conveying device are connected to the input of the low-pressure mixer. The output of the low-pressure mixer is connected to the input of the casting gun head. The casting gun head is mounted on a material distributor and reciprocates under the drive of the material distributor. An upper roll of material is positioned above the casting gun head and is unwound by an uncoiler. A lower roll of material is positioned below the casting gun head and is unwound by an uncoiler. A press is located behind the casting gun head. The continuous processing equipment for A2 grade rigid polyurethane foam insulation boards also includes a side-sealing paper winding machine, which is positioned near the tail end of the press. The side-sealing paper winding machine includes a support, roller one, and roller two. The system comprises a winding module, guide rods, a sliding cylinder, and a linear module. Roller 1 is rotatably mounted on a support. Roller 2 is coaxially mounted at one end of Roller 1 and slidably mounted on the support along its axial direction, allowing rotation relative to the support. The winding module includes multiple circumferentially distributed support plates surrounding Roller 1 or Roller 2. These support plates slidably mount Roller 1 or Roller 2 along its axial direction, forming support plate group 1 and support plate group 2. The sliding cylinder is slidably sleeved on Roller 1 and / or Roller 2 along its axial direction. The linear module can drive the sliding cylinder... The slide cylinder slides on roller one or roller two. The slide cylinder can selectively lock support plate group one or support plate group two and move support plate group one or support plate group two onto roller two so as to unload the side sealing paper wrapped by support plate group one or support plate group two located on roller two. At the same time, support plate group two or support plate group one left on roller one can continue to wrap the side sealing paper. As the slide cylinder moves support plate group one or support plate group two onto roller two, the slide cylinder continues to move from roller one to roller two, which can drive roller two to disengage from roller one, so that a gap is created between roller one and roller two.

2. The continuous processing equipment for A2 grade rigid polyurethane foam insulation boards according to claim 1, characterized in that: Both roller 1 and roller 2 are hollow cylindrical structures. Guide grooves communicating with the interior are opened axially on the outer peripheral walls of roller 1 and roller 2. Roller 1 can rotate relative to roller 2 until the guide groove on roller 1 is aligned with the guide groove on roller 2. The support plate is located on the outside of roller 1 or roller 2. Ribs are provided on the inner side of the support plate. The ribs slide through the guide grooves, and the end of the ribs passing through the guide grooves and located inside roller 1 or roller 2 is provided with a limiting foot. The support plate can slide axially along roller 1 or roller 2. At the same time, the support plate can slide radially along roller 1 or roller 2 through the ribs. The winding module also includes a pusher wheel and a second driver. The pusher wheel is retracted into the interior of roller 1. The second driver is fixedly installed at the end of roller 1 away from roller 2. The output end of the second driver is connected to the pusher wheel. Thus, when the pusher wheel is driven to rotate relative to roller 1, it can selectively push the support plate of the first support plate group away from roller 1 to move and unfold, or push the support plate in the second support plate group away from roller 1 to move and unfold.

3. The continuous processing equipment for A2 grade rigid polyurethane foam insulation boards according to claim 1, characterized in that: The end faces of roller 1 and roller 2 that are close to each other are provided with concave and convex alignment structures. When roller 2 slides toward roller 1 and abuts against roller 1, and roller 2 rotates relative to roller 1 until the concave and convex alignment structures are engaged, the guide groove on roller 1 is aligned with the guide groove on roller 2.

4. The continuous processing equipment for A2 grade rigid polyurethane foam insulation boards according to claim 1, characterized in that: The interior of roller one is hollow to form hole one, and the interior of roller two is hollow to form hole two. The diameter of hole two is smaller than the diameter of hole one.

5. The continuous processing equipment for A2 grade rigid polyurethane foam insulation boards according to claim 1, characterized in that: A guide rod is installed on the end of the support corresponding to the roller two away from the roller one. The roller two is slidably sleeved on the guide rod along the axial direction, and the roller two can rotate relative to the guide rod. An elastic element is provided between the guide rod and the roller two.

6. The continuous processing equipment for A2 grade rigid polyurethane foam insulation boards according to claim 2, characterized in that: Each of the ribs has a waist-shaped groove on its side, which extends radially along roller one or roller two. The slide cylinder has a hollow cylindrical structure and multiple axially extending slits one and two. The ribs of the support plate of support plate assembly one pass through slit one, and the ribs of the support plate of support plate assembly two pass through slit two. A chamber one is located on the side wall of the slide cylinder near slit one. A through hole is provided on the side wall of slit one, connecting to chamber one. A movable part is provided in the through hole. As the pressure in chamber one increases, the movable part decreases. The pressure difference force can drive the movable part to extend into slit one, so that the movable part can engage with support plate assembly one. The support plate retracts into the waist-shaped groove of the support plate, or retracts into the chamber, causing the movable part to disengage from the waist-shaped groove of the support plate of the support plate assembly 1. This controls the slide cylinder to lock the support plate assembly 1. The slide cylinder has a chamber 2 located on the side wall near the gap 2. The side wall of the gap 2 also has a through hole connecting the chamber 2. A movable part is installed in the through hole. As the pressure in the chamber 2 increases and then decreases, the pressure difference can drive the movable part to extend into the gap 2, so that the movable part can be engaged in the waist-shaped groove of the support plate of the support plate assembly 2, or retract into the chamber 2, causing the movable part to disengage from the waist-shaped groove of the support plate of the support plate assembly 2. This controls the slide cylinder to lock the support plate assembly 2.

7. A continuous processing technology for A2 grade rigid polyurethane foam insulation boards, using the continuous processing equipment for A2 grade rigid polyurethane foam insulation boards according to any one of claims 1-6, characterized in that: The continuous processing technology for the A2 grade rigid polyurethane foam insulation board includes the following steps: Step S1: The black and white materials in the polyurethane black material storage tank and the polyurethane white material storage tank are metered by metering pump one and metering pump two respectively, and then enter the high-pressure mixer for high-pressure atomization collision mixing. After being mixed evenly, they are transported to the low-pressure mixer. Step S2: The inorganic materials stored in the inorganic material storage tank are metered by a metering instrument and then transported to the low-pressure mixer; Step S3: The inorganic material measured by the metering instrument is mixed with the mixed black and white materials through a low-pressure mixer and then conveyed to the casting gun head. Step S4: The pouring gun head located above the conveying platform pours the mixture obtained in step S3 onto the lower roll material. The mixture and the lower roll material enter the press synchronously with the upper roll material under the tension provided by the press through the conveying platform, and the foaming and molding process of rigid polyurethane foam insulation board is completed in the press.

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