Manufacturing apparatus and method of polyurethane foamed composite nylon thermal barrier strip

Abstract

The application discloses a manufacturing device of polyurethane foaming composite nylon heat insulation strip, which comprises a heat insulation strip conveying mechanism, a pouring mechanism, an X-axis moving mechanism, a Y-axis moving mechanism, a foaming frame and a controller. The heat insulation strip conveying mechanism is used for conveying the nylon heat insulation strip with an open structure. The pouring mechanism is arranged on one side of the heat insulation strip conveying mechanism. The pouring mechanism is used for conveying a fixed amount of A material and B material of two-component polyurethane into a mixing head. The mixing head is used for adding the two-component polyurethane into the groove of the conveying nylon heat insulation strip with the open structure. The foaming frame is used for adjusting the bottom surface of the groove of the nylon heat insulation strip filled with the two-component polyurethane to a horizontal state and performing natural foaming. The foaming frame is arranged at the discharging end of the heat insulation strip conveying mechanism. The polyurethane foaming material is compounded in the groove of the heat insulation strip, so that the heat insulation and heat preservation effect of the aluminum profile door and window is improved. The composite process treatment can be directly performed after the production of the heat insulation strip profile, and the production is facilitated.

Description

Technical Field

[0001] This invention relates to the field of composite nylon thermal insulation strip technology, specifically to an apparatus and method for manufacturing polyurethane foam composite nylon thermal insulation strips. Background Technology

[0002] Thermal break strips are installed during the processing of thermally broken aluminum alloy profiles to improve the heat insulation and thermal insulation effect of aluminum alloy doors and windows. However, the existing thermal break strips have simple structures and are mostly single-layer structures, resulting in poor heat insulation performance.

[0003] To improve the energy efficiency of existing thermally broken aluminum alloy doors and windows, the only solution is to increase the width of the thermal break strip running through the middle of the thermally broken aluminum alloy profile. However, increasing the width of the thermal break strip leads to problems such as insufficient shear strength of the thermally broken aluminum alloy profile and deformation under pressure.

[0004] To address these issues, multi-chamber thermal insulation strips have emerged in the current market. However, while this solution enhances structural strength, it complicates the assembly and insertion of aluminum profiles, and the improvement in insulation performance is not ideal.

[0005] Therefore, a manufacturing apparatus and method for polyurethane foam composite nylon thermal insulation strips are proposed. Summary of the Invention

[0006] The purpose of this invention is to provide an apparatus and method for manufacturing polyurethane foam composite nylon thermal insulation strips, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an apparatus and method for manufacturing polyurethane foam composite nylon thermal insulation strips, comprising:

[0008] A thermal insulation strip conveying mechanism, wherein the thermal insulation strip conveying mechanism is used to convey nylon thermal insulation strips with an open structure;

[0009] The injection mechanism is located on one side of the heat insulation strip conveying mechanism and is used to deliver a fixed amount of two-component polyurethane A and B components into the mixing head.

[0010] The mixing head is used to add two-component polyurethane into the groove of the nylon insulation strip in the open structure.

[0011] An X-axis moving mechanism is mounted on the heat insulation strip conveying mechanism and is used to drive the mixing head to reciprocate along the X-axis.

[0012] The Y-axis moving mechanism is mounted on the X-axis moving mechanism and is used to drive the mixing head to move up and down along the Y-axis.

[0013] A foaming rack is used to adjust the bottom surface of the groove filled with two-component polyurethane nylon thermal insulation strips to a horizontal state for natural foaming. The foaming rack is located at the discharge end of the thermal insulation strip conveying mechanism.

[0014] The controller controls the heat insulation strip conveying mechanism, the filling mechanism, the X-axis moving mechanism, the Y-axis moving mechanism, the foaming frame, and the mixing head.

[0015] In the manufacturing apparatus and method for polyurethane foam composite nylon thermal insulation strip according to the present invention, optionally, the thermal insulation strip conveying mechanism includes a conveying frame, a first conveyor belt is rotatably mounted on the inner side of the upper end of the conveying frame, and a first conveying motor for driving the first conveyor belt to rotate is fixedly mounted on one side of the conveying frame.

[0016] The infusion mechanism includes a base with support feet fixedly connected to each of the four corners of the base. A first liquid tank and a second liquid tank are fixedly installed on the top of the base. The first liquid tank stores component A of the two-component polyurethane, and the second liquid tank stores component B of the two-component polyurethane. A first metering pump is fixedly installed on the base, and the inlet of the first metering pump is connected to the outlet of the first liquid tank via a first pipe. A second metering pump is fixedly installed on the top of the base, and the inlet of the second metering pump is connected to the outlet of the second liquid tank via a second pipe.

[0017] The X-axis moving mechanism includes two columns, which are fixedly installed on the top two sides of the conveyor frame, and an X-axis linear module is fixedly installed between the two columns.

[0018] The Y-axis moving mechanism includes a Y-axis linear module, which is fixedly mounted on the slide of the X-axis linear module.

[0019] The mixing head includes a mounting base, a mixing motor, a rotating rod, an extrusion sleeve, and a housing. The mounting base is fixedly mounted on the slide table of the Y-axis linear module. The mixing motor is fixedly mounted on the upper end of the mounting base, and the housing is fixedly mounted on the lower end of the mounting base. A support base is fixedly mounted on the mounting base. The upper end of the rotating rod is rotatably connected to the support base via a bearing, and the upper end of the rotating rod is fixedly connected to the rotating shaft of the mixing motor. The top of the housing is open. The lower end of the extrusion sleeve is slidably fitted inside the housing. The lower end of the rotating rod slides through the interior of the extrusion sleeve and extends into the lower end of the housing. The bottom of the extrusion sleeve is connected to the inner bottom of the housing. A mixing chamber is formed between the parts. The lower end of the rotating rod is provided with several grooves. A stirring grid plate is rotatably connected inside the groove. An elastic sheet is provided on the inner wall of the groove. The movable end of the upper part of the elastic sheet abuts against the upper side of the groove. The lower end of the stirring grid plate can extend out of the groove under the elastic force of the elastic sheet. A lifting assembly for driving the extrusion sleeve to move up and down is installed on the housing. When the extrusion sleeve moves downward, the stirring grid plate retracts into the groove under the extrusion sleeve. A discharge port is provided at the bottom of the housing. The bottom of the discharge port is connected to a discharge pipe. A discharge valve is installed on the discharge pipe. The bottom of the discharge pipe is connected to a discharge flat nozzle.

[0020] The housing is provided with a second feed pipe and a first feed pipe that communicate with the interior of the mixing chamber. Both the second feed pipe and the first feed pipe are equipped with feed valves. The outlet of the first metering pump is connected to the first feed pipe through a first delivery pipe, and the outlet of the second metering pump is connected to the second feed pipe through a second delivery pipe.

[0021] In the manufacturing apparatus and method for polyurethane foam composite nylon thermal insulation strip according to the present invention, optionally, two sets of lifting components are provided, and the two sets of lifting components are provided on opposite sides of the housing. Each set of lifting components includes a mounting plate, a lifting electric push rod, and a connecting ear. The connecting ear is fixedly connected to the top of the extrusion sleeve. The mounting plate is fixedly connected to the lower end of one side of the housing. The bottom of the lifting electric push rod is fixedly mounted on the mounting plate. The piston rod of the lifting electric push rod is fixedly connected to the bottom of the connecting ear.

[0022] In the manufacturing apparatus and method for polyurethane foam composite nylon thermal insulation strip according to the present invention, optionally, a first annular sealing groove is formed on the lower outer wall of the extrusion sleeve, a first sealing ring is provided inside the first annular sealing groove, and the outer wall of the first sealing ring is in sliding sealing contact with the inner wall of the housing; a second annular sealing groove is formed on the lower inner wall of the extrusion sleeve, a second sealing ring is provided inside the second annular sealing groove, and the inner wall of the second sealing ring is in sealing sliding contact with the outer wall of the rotating rod.

[0023] In the manufacturing apparatus and method for polyurethane foam composite nylon thermal insulation strip according to the present invention, optionally, a positioning mechanism for positioning the nylon thermal insulation strip is provided on the conveyor frame. The positioning mechanism includes a positioning electric push rod and a positioning plate. The positioning plate is fixedly connected to the top of one side of the conveyor frame, and the positioning electric push rod is fixedly installed on the top of the other side of the thermal insulation strip conveying mechanism. An i-shaped groove is fixedly installed at the piston rod end of the positioning electric push rod and on one side of the positioning plate. A roller is rotatably connected to the inner side of the i-shaped groove, and a material proximity sensor is fixedly installed on the inner side of the i-shaped groove. The material proximity sensor is electrically connected to the signal input terminal of the controller, and the positioning electric push rod is controlled by the controller.

[0024] In the manufacturing apparatus and method for polyurethane foam composite nylon thermal insulation strip according to the present invention, optionally, a camera is fixedly installed at the bottom of the housing, the camera is used to identify the starting end position of the groove of the nylon thermal insulation strip, and the camera is electrically connected to the signal input terminal of the controller.

[0025] In the manufacturing apparatus and method for polyurethane foam composite nylon thermal insulation strip according to the present invention, optionally, a clean water pipe communicating with the mixing chamber is provided on the housing, and a water valve is installed on the clean water pipe.

[0026] In the manufacturing apparatus and method for polyurethane foam composite nylon thermal insulation strip according to the present invention, optionally, the foaming frame includes an adjusting frame and a second conveyor belt, the second conveyor belt being rotatably mounted inside the adjusting frame, and a second conveyor motor for driving the second conveyor belt to rotate is fixedly mounted on one side of the adjusting frame.

[0027] In the manufacturing apparatus and method for polyurethane foam composite nylon thermal insulation strip according to the present invention, optionally, the adjusting frame includes a first base frame and a second base frame. A lower hinge seat is fixedly installed on the top of the first base frame. A lower rotating block is rotatably installed inside the lower hinge seat. A hydraulic cylinder is fixedly installed on the lower rotating block. A second upper rotating block is fixedly connected to the piston rod end of the hydraulic cylinder. The second upper rotating block is rotatably connected to the second upper hinge seat. A first upper mounting frame is fixedly connected to the top of the second upper hinge seat. A support rod is fixedly installed on the top of the second base frame. A first upper rotating block is fixedly installed on the top of the support rod. The first upper rotating block is rotatably installed on the first upper hinge seat. A second upper mounting frame is fixedly installed on the top of the first upper hinge seat. The second conveyor belt is rotatably installed between the first upper mounting frame and the second upper mounting frame via a rotating roller.

[0028] This invention also provides a method for manufacturing a polyurethane foam composite nylon thermal insulation strip, which is prepared using the aforementioned polyurethane foam composite nylon thermal insulation strip manufacturing apparatus, and specifically includes the following steps:

[0029] S1. The A and B components of the two-component polyurethane are placed in the first liquid tank and the second liquid tank respectively for later use.

[0030] S2. Place the open-type nylon heat insulation strip with the groove facing upward on the first conveyor belt;

[0031] S3. The piston rod of the hydraulic cylinder is extended or shortened by the controller, so that the bottom of the groove of the nylon heat insulation strip placed on the second conveyor belt is in a horizontal state, ensuring the foaming quality.

[0032] S4. The controller starts the first conveyor motor, moving the nylon heat insulation strip towards the mixing head. When the end of the nylon heat insulation strip reaches the material proximity sensor, the sensor transmits a signal to the controller. The controller then extends the piston rod of the positioning electric push rod, positioning the nylon heat insulation strip between the two C-shaped troughs. Simultaneously, the first and second metering pumps are started. According to the mixing ratio of material A and material B, materials A and B from the first and second material tanks are conveyed into the mixing chamber. Then, the second metering pump, the first metering pump, and the feed valve are closed. Finally, the mixing motor is started. The rotating rod drives the stirring grid plate to quickly stir the liquid in the mixing chamber. The camera detects the initial end of the nylon heat insulation strip, and then the controller controls the X-axis moving mechanism to move the mixing head to directly above the nylon heat insulation strip. Then, the Y-axis linear module is controlled to move the mixing head downward to 3-6mm above the nylon heat insulation strip. Then, the discharge valve is opened, and at the same time, the piston rod of the lifting electric push rod is controlled to slowly retract, so that the extrusion sleeve moves downward and presses the stirring grid plate into the groove. Then, the mixed polyurethane in the mixing chamber is discharged into the groove of the nylon heat insulation strip through the discharge flat nozzle.

[0033] S5. By controlling the start of the second conveyor motor, the nylon thermal insulation strip with added polyurethane is conveyed to the second conveyor belt, where it is naturally foamed for 3 minutes and then cured to obtain a polyurethane rigid foam composite nylon thermal insulation strip.

[0034] Compared with the prior art, the beneficial effects of the present invention are:

[0035] This invention improves the thermal insulation effect of aluminum profile doors and windows by compositing polyurethane foam material in the groove of the thermal insulation strip. The composite process can be carried out directly after the thermal insulation strip is produced in the thermal insulation strip factory, which is convenient for production.

[0036] The mixing head allows for rapid mixing of polyurethane, which is not only simple in structure but also effectively improves mixing efficiency and quality, while facilitating subsequent cleaning and maintenance.

[0037] The foaming rack allows for the placement of different types of nylon insulation strips, ensuring that the bottom of the groove in the nylon insulation strip remains horizontal and guaranteeing the quality of the foaming process. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the manufacturing apparatus for the polyurethane foam composite nylon thermal insulation strip of the present invention.

[0039] Figure 2 This is one of the structural schematic diagrams of the heat insulation strip conveying mechanism of the manufacturing apparatus for the polyurethane foam composite nylon heat insulation strip of the present invention;

[0040] Figure 3 Book Figure 2 A magnified structural diagram of part A in the diagram;

[0041] Figure 4 This is one of the structural schematic diagrams of the mixing head of the manufacturing apparatus for the polyurethane foam composite nylon thermal insulation strip of the present invention;

[0042] Figure 5 This is a second schematic diagram of the mixing head of the manufacturing device for the polyurethane foam composite nylon thermal insulation strip of the present invention;

[0043] Figure 6 This is one of the partial cross-sectional structural schematic diagrams of the mixing head of the manufacturing device for the polyurethane foam composite nylon thermal insulation strip of the present invention;

[0044] Figure 7 This is a second partial cross-sectional schematic diagram of the mixing head of the manufacturing device for the polyurethane foam composite nylon thermal insulation strip of the present invention.

[0045] Figure 8 This is a partial structural schematic diagram of the injection mechanism of the manufacturing apparatus for the polyurethane foam composite nylon thermal insulation strip of the present invention;

[0046] Figure 9 This is a schematic diagram of the structure of the foaming frame of the manufacturing apparatus for the polyurethane foam composite nylon thermal insulation strip of the present invention.

[0047] In the picture:

[0048] 1. Thermal insulation strip conveying mechanism; 101. Conveyor frame; 102. First conveyor belt; 103. First conveyor motor;

[0049] 2. Filling mechanism; 201. Base; 202. First liquid tank; 203. Second liquid tank; 204. First metering pump; 205. Second metering pump; 206. First delivery pipe; 207. Second delivery pipe;

[0050] 3. X-axis moving mechanism; 301. Column; 302. X-axis linear module;

[0051] 4. Y-axis moving mechanism; 401. Y-axis linear module;

[0052] 5. Foaming frame; 501. First base frame; 502. Second base frame; 503. Support rod; 504. First upper rotating block; 505. First upper hinge seat; 506. Lower hinge seat; 507. Lower rotating block; 508. Hydraulic cylinder; 509. Second upper rotating block; 510. Second upper hinge seat; 511. Second conveyor motor; 512. First upper mounting frame; 513. Second upper mounting frame; 514. Second conveyor belt;

[0053] 6. Positioning mechanism; 601. Positioning electric push rod; 602. Positioning plate; 603. C-shaped groove; 604. Roller;

[0054] 7. Material proximity sensor;

[0055] 8. Controller;

[0056] 9. Mixing head; 901. Mounting base; 902. Mixing motor; 903. Support base; 904. Rotating rod; 9041. Groove; 9042. Stirring grid plate; 9043. Elastic sheet; 905. Extrusion sleeve; 906. Housing; 9061. Second feed pipe; 9062. First feed pipe; 9063. Feed valve; 9064. Mixing chamber; 9065. Discharge port; 9066. Clean water pipe; 907. Camera; 908. Mounting plate; 909. Lifting electric push rod; 910. Connecting ear; 911. Discharge pipe; 912. Discharge flat nozzle; 913. Discharge valve; 914. First sealing ring; 915. Second sealing ring. Detailed Implementation

[0057] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0058] Example 1

[0059] An apparatus for manufacturing polyurethane foam composite nylon thermal insulation strips includes:

[0060] Thermal insulation strip conveying mechanism 1, which is used to convey nylon thermal insulation strips with an open structure;

[0061] Injection mechanism 2 is located on one side of the heat insulation strip conveying mechanism 1. Injection mechanism 2 is used to convey a fixed amount of two-component polyurethane A material and B material into the mixing head 9.

[0062] The mixing head 9 is used to add two-component polyurethane into the groove of the nylon insulation strip in the open structure.

[0063] X-axis moving mechanism 3 is set on heat insulation strip conveying mechanism 1. X-axis moving mechanism 3 is used to drive mixing head 9 to move back and forth along X-axis.

[0064] Y-axis moving mechanism 4 is mounted on X-axis moving mechanism 3 and is used to drive mixing head 9 to move up and down along the Y-axis.

[0065] The foaming rack 5 is used to adjust the bottom surface of the groove filled with two-component polyurethane nylon heat insulation strip to a horizontal state for natural foaming. The foaming rack 5 is set at the discharge end of the heat insulation strip conveying mechanism 1.

[0066] The controller 8, the insulation strip conveying mechanism 1, the filling mechanism 2, the X-axis moving mechanism 3, the Y-axis moving mechanism 4, the foaming rack 5, and the mixing head 9 are all controlled by the controller 8.

[0067] In this embodiment, the heat insulation strip conveying mechanism 1 includes a conveying frame 101. A first conveyor belt 102 is rotatably mounted on the inner side of the upper end of the conveying frame 101. A first transmission motor 103 for driving the first conveyor belt 102 to rotate is fixedly mounted on one side of the conveying frame 101. By controlling the operation of the first transmission motor 103, the nylon heat insulation strip can be driven to move towards the mixing head 9.

[0068] In this embodiment, the X-axis moving mechanism 3 includes two columns 301, which are fixedly installed on the top two sides of the conveyor frame 101 respectively, and an X-axis linear module 302 is fixedly installed between the two columns 301; the Y-axis moving mechanism 4 includes a Y-axis linear module 401, which is fixedly installed on the slide of the X-axis linear module 302.

[0069] The mixing head 9 includes a mounting base 901, a mixing motor 902, a rotating rod 904, an extrusion sleeve 905, and a housing 906. The mounting base 901 is fixedly mounted on the slide of the Y-axis linear module 401. The mixing motor 902 is fixedly mounted on the upper end of the mounting base 901. The housing 906 is fixedly mounted on the lower end of the mounting base 901. A support base 903 is fixedly mounted on the mounting base 901. The upper end of the rotating rod 904 is rotatably connected to the support base 903 via a bearing. The upper end of the rotating rod 904 is fixedly connected to the rotating shaft of the mixing motor 902. The top of the body 906 is open. The lower end of the extrusion sleeve 905 is slidably fitted inside the housing 906. The lower end of the rotating rod 904 slides through the interior of the extrusion sleeve 905 and extends into the lower end of the interior of the housing 906. A mixing chamber 9064 is formed between the bottom of the extrusion sleeve 905 and the inner bottom of the housing 906. Several grooves 9041 are provided at the lower end of the rotating rod 904. A stirring grid plate 9042 is rotatably connected inside the grooves 9041. An elastic sheet 9043 is provided on the inner wall of the grooves 9041. The upper part of the elastic sheet 9043 is movable. The end rests against the upper side of the groove 9041. The lower end of the stirring grid plate 9042 can extend out of the groove 9041 under the elastic force of the elastic sheet 9043. A lifting assembly for driving the extrusion sleeve 905 to move up and down is installed on the housing 906. Two sets of lifting assemblies are provided, and the two sets of lifting assemblies are located on opposite sides of the housing 906. Each set of lifting assemblies includes a mounting plate 908, a lifting electric push rod 909, and a connecting ear 910. The connecting ear 910 is fixedly connected to the top of the extrusion sleeve 905, and the mounting plate 908 is fixedly connected to the housing 906. At the lower end of one side of body 906, the bottom of the lifting electric push rod 909 is fixedly installed on the mounting plate 908. The piston rod of the lifting electric push rod 909 is fixedly connected to the bottom of the connecting ear 910. When the extrusion sleeve 905 moves downward, the stirring grid plate 9042 retracts into the groove 9041 under the extrusion of the extrusion sleeve 905. The bottom of the housing 906 is provided with a discharge port 9065. The bottom of the discharge port 9065 is connected to a discharge pipe 911. A discharge valve 913 is installed on the discharge pipe 911. The bottom of the discharge pipe 911 is connected to a discharge flat nozzle 912.Using this scheme, polyurethane components A and B are added to the mixing chamber 9064 through the second feed pipe 9061 and the first feed pipe 9062. Then, the mixing motor 902 is started, which drives the rotating rod 904 to rotate. The rotating rod 904 drives the stirring grid plate 9042 to quickly mix the liquid entering the mixing chamber 9064. After mixing, when it is necessary to spray, the mixing motor 902 is turned off, the discharge valve 913 is opened, and then the piston rod of the lifting electric push rod 909 is slowly retracted, which drives the extrusion sleeve 905 to move downward. The extrusion sleeve 905 continuously squeezes the liquid in the mixing chamber 9064 and the stirring grid plate 9042, pressing the stirring grid plate 9042 back into the groove 9041. At the same time, the polyurethane in the mixing chamber 9064 is sprayed out through the discharge flat nozzle 912. It should be noted that the amount of polyurethane mixed in the mixing chamber 9064 each time is sufficient for a single nylon insulation strip. After the polyurethane in the mixing chamber 9064 is completely extruded, the piston rod of the lifting electric push rod 909 is extended, moving the extrusion sleeve 905 upward. At this time, the lower end of the stirring grid plate 9042 is ejected from the groove 9041 again under the elastic force of the elastic plate 9043. This mixing head 9 has a simple structure, high stirring efficiency, and ensures the mixing quality of polyurethane.

[0070] Specifically, the lower outer wall of the extrusion sleeve 905 is provided with a first annular sealing groove, and a first sealing ring 914 is provided inside the first annular sealing groove. The outer wall of the first sealing ring 914 is in sliding sealing contact with the inner wall of the housing 906. The lower inner wall of the extrusion sleeve 905 is provided with a second annular sealing groove, and a second sealing ring 915 is provided inside the second annular sealing groove. The inner wall of the second sealing ring 915 is in sealing sliding contact with the outer wall of the rotating rod 904. The above arrangement can effectively ensure the sealing of the mixing chamber 9064 and avoid polyurethane leakage.

[0071] In this embodiment, the infusion mechanism 2 includes a base 201. Support feet are fixedly connected to the four corners of the bottom of the base 201. A first liquid tank 202 and a second liquid tank 203 are fixedly installed on the top of the base 201. The first liquid tank 202 is used to store component A of the two-component polyurethane, and the second liquid tank 203 is used to store component B of the two-component polyurethane. A first metering pump 204 is fixedly installed on the base 201. The inlet of the first metering pump 204 is connected to the outlet pipe of the first liquid tank 202 through a first pipeline. A second metering pump 203 is fixedly installed on the top of the base 201. Pump 205, the inlet of the second metering pump 205 is connected to the outlet of the second liquid tank 203 through the second pipeline. The housing 906 is provided with a second feed pipe 9061 and a first feed pipe 9062 that are connected to the inside of the mixing chamber 9064. Feed valves 9063 are installed on both the second feed pipe 9061 and the first feed pipe 9062. The outlet of the first metering pump 204 is connected to the first feed pipe 9062 through the first delivery pipe 206. The outlet of the second metering pump 205 is connected to the second feed pipe 9061 through the second delivery pipe 207.

[0072] With the above settings, a certain ratio of material A and material B can be added to the mixing chamber 9064 as needed.

[0073] In this embodiment, a positioning mechanism 6 for positioning nylon heat insulation strips is provided on the conveyor frame 101. The positioning mechanism 6 includes a positioning electric push rod 601 and a positioning plate 602. The positioning plate 602 is fixedly connected to the top of one side of the conveyor frame 101, and the positioning electric push rod 601 is fixedly installed on the top of the other side of the heat insulation strip conveying mechanism 1. A C-shaped groove 603 is fixedly installed on both the piston rod end of the positioning electric push rod 601 and one side of the positioning plate 602. A roller 604 is rotatably connected to the inner side of the C-shaped groove 603. A material proximity sensor 7 is fixedly installed on the inner side of the C-shaped groove 603. The material proximity sensor 7 is electrically connected to the signal input terminal of the controller 8. The positioning electric push rod 601 is controlled by the controller 8.

[0074] By adopting the above technical solution, when the material proximity sensor 7 detects the nylon heat insulation strip, the controller 8 controls the piston rod of the positioning electric push rod 601 to extend, positioning the nylon heat insulation strip between the inverted groove 603 on the piston rod of the positioning electric push rod 601 and the inverted groove 603 on the positioning plate 602, making the mixing head 9 more stable when spraying polyurethane, and reducing the friction between the roller 604 and the moving nylon heat insulation strip.

[0075] A camera 907 is fixedly installed on the bottom of the housing 906. The camera 907 is used to identify the starting position of the groove of the nylon heat insulation strip. The camera 907 is electrically connected to the signal input terminal of the controller 8.

[0076] In this embodiment, the foaming frame 5 includes an adjusting frame and a second conveyor belt 514. The second conveyor belt 514 is rotatably mounted inside the adjusting frame. A second transmission motor 511 for driving the second conveyor belt 514 to rotate is fixedly mounted on one side of the adjusting frame. The adjusting frame includes a first base frame 501 and a second base frame 502. A lower hinge seat 506 is fixedly mounted on the top of the first base frame 501. A lower rotating block 507 is rotatably mounted inside the lower hinge seat 506. A hydraulic cylinder 508 is fixedly mounted on the lower rotating block 507. A second upper rotating block 508 is fixedly connected to the piston rod end of the hydraulic cylinder 508. 9. The second upper rotating block 509 is rotatably connected to the second upper hinge seat 510. The top of the second upper hinge seat 510 is fixedly connected to the first upper mounting bracket 512. The top of the second base frame 502 is fixedly mounted with a support rod 503. The top of the support rod 503 is fixedly mounted with the first upper rotating block 504. The first upper rotating block 504 is rotatably mounted on the first upper hinge seat 505. The top of the first upper hinge seat 505 is fixedly mounted with the second upper mounting bracket 513. The second conveyor belt 514 is rotatably mounted between the first upper mounting bracket 512 and the second upper mounting bracket 513 via a rotating roller. The piston rod of the hydraulic cylinder 508 is extended or shortened by the controller 8, thereby ensuring that the bottom of the groove of the nylon heat insulation strip subsequently placed on the second conveyor belt 514 is in a horizontal state, ensuring the foaming quality.

[0077] To facilitate cleaning of the interior of the mixing chamber 9064, a clean water pipe 9066 connected to the mixing chamber 9064 is provided on the housing 906. A water valve is installed on the clean water pipe 9066, and the clean water pipe 9066 is connected to the outlet of an external water pump.

[0078] This invention also provides a method for manufacturing a polyurethane foam composite nylon thermal insulation strip, which is prepared using the aforementioned polyurethane foam composite nylon thermal insulation strip manufacturing apparatus, specifically including the following steps:

[0079] S1. The A and B components of the two-component polyurethane are placed in the first liquid tank 202 and the second liquid tank 203 respectively for later use.

[0080] S2. Place the open-type nylon heat insulation strip on the first conveyor belt 102 with the groove facing upward;

[0081] S3. The piston rod of the hydraulic cylinder 508 is extended or shortened by the controller 8, so that the bottom of the groove of the nylon heat insulation strip placed on the second conveyor belt 514 is in a horizontal state to ensure the foaming quality.

[0082] S4. Controller 8 starts the first conveyor motor 103, which moves the nylon heat insulation strip towards the mixing head 9. When the end of the nylon heat insulation strip reaches the material proximity sensor 7, the material proximity sensor 7 transmits a signal to controller 8. Controller 8 then extends the piston rod of the positioning electric push rod 601, positioning the nylon heat insulation strip between the two C-shaped grooves 603. Simultaneously, the first metering pump 204 and the second metering pump 205 are started. According to the mixing ratio of material A and material B, material A and material B in the first liquid tank 202 and the second liquid tank 203 are conveyed into the mixing chamber 9064. Then, the second metering pump 205, the first metering pump 204, and the feed valve 9063 are closed. Finally, the mixing motor 902 is started. The mixing motor 902 drives... The rotating rod 904 rotates, which drives the stirring grid plate 9042 to quickly stir the liquid in the mixing chamber 9064. The camera 907 detects the initial end of the nylon heat insulation strip, and then the controller 8 controls the X-axis moving mechanism 3 to move the mixing head 9 to directly above the nylon heat insulation strip. Then, the Y-axis linear module 401 controls the mixing head 9 to move downward to 3-6mm above the nylon heat insulation strip. Then, the discharge valve 913 is opened, and at the same time, the piston rod of the lifting electric push rod 909 is slowly retracted, so that the extrusion sleeve 905 moves downward, pressing the stirring grid plate 9042 into the groove 9041. Then, the mixed polyurethane in the mixing chamber 9064 is discharged into the groove of the nylon heat insulation strip through the discharge flat nozzle 912.

[0083] S5. By controlling the start of the second conveyor motor 511, the nylon thermal insulation strip with added polyurethane is conveyed to the second conveyor belt 514, where it is naturally foamed for 3 minutes and then cured to obtain a polyurethane rigid foam composite nylon thermal insulation strip.

[0084] All parts not described in this invention are the same as or can be implemented using existing technology. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for manufacturing polyurethane foam composite nylon thermal insulation strips, characterized in that, include: Thermal insulation strip conveying mechanism (1), the thermal insulation strip conveying mechanism (1) is used to convey nylon thermal insulation strips with open structure; Injection mechanism (2), which is located on one side of the insulation strip conveying mechanism (1), is used to deliver a fixed amount of A and B components of two-component polyurethane into the mixing head (9); The mixing head (9) is used to add two-component polyurethane into the groove of the nylon heat insulation strip with an open structure; X-axis moving mechanism (3), the X-axis moving mechanism (3) is disposed on the heat insulation strip conveying mechanism (1), the X-axis moving mechanism (3) is used to drive the mixing head (9) to move back and forth along the X-axis; Y-axis moving mechanism (4), the Y-axis moving mechanism (4) is disposed on the X-axis moving mechanism (3), the Y-axis moving mechanism (4) is used to drive the mixing head (9) to move up and down along the Y-axis; Foaming rack (5), the foaming rack (5) is used to adjust the bottom surface of the groove filled with two-component polyurethane nylon heat insulation strip to a horizontal state for natural foaming, the foaming rack (5) is set at the discharge end of the heat insulation strip conveying mechanism (1); The controller (8) controls the heat insulation strip conveying mechanism (1), the filling mechanism (2), the X-axis moving mechanism (3), the Y-axis moving mechanism (4), the foaming rack (5), and the mixing head (9). The heat insulation strip conveying mechanism (1) includes a conveying frame (101), a first conveyor belt (102) is rotatably mounted on the inner side of the upper end of the conveying frame (101), and a first conveying motor (103) for driving the first conveyor belt (102) to rotate is fixedly mounted on one side of the conveying frame (101). The infusion mechanism (2) includes a base (201), with support feet fixedly connected to the four corners of the bottom of the base (201). A first liquid tank (202) and a second liquid tank (203) are fixedly installed on the top of the base (201). The first liquid tank (202) is used to store component A of the two-component polyurethane, and the second liquid tank (203) is used to store component B of the two-component polyurethane. A first metering pump (204) is fixedly installed on the base (201). The inlet of the first metering pump (204) is connected to the outlet of the first liquid tank (202) through a first pipeline. A second metering pump (205) is fixedly installed on the top of the base (201). The inlet of the second metering pump (205) is connected to the outlet of the second liquid tank (203) through a second pipeline. The X-axis moving mechanism (3) includes two columns (301). The two columns (301) are fixedly installed on the top two sides of the conveyor frame (101), and an X-axis linear module (302) is fixedly installed between the two columns (301). The Y-axis moving mechanism (4) includes a Y-axis linear module (401), which is fixedly mounted on the slide of the X-axis linear module (302). The mixing head (9) includes a mounting base (901), a mixing motor (902), a rotating rod (904), an extrusion sleeve (905), and a housing (906). The mounting base (901) is fixedly mounted on the slide of the Y-axis linear module (401). The mixing motor (902) is fixedly mounted on the upper end of the mounting base (901). The housing (906) is fixedly mounted on the lower end of the mounting base (901). A support base (903) is fixedly mounted on the mounting base (901). The upper end of the rotating rod (904) is open to the air intake. The bearing is rotatably connected to the support base (903). The upper end of the rotating rod (904) is fixedly connected to the rotating shaft of the mixing motor (902). The top of the housing (906) is open. The lower end of the extrusion sleeve (905) is slidably sleeved inside the housing (906). The lower end of the rotating rod (904) slides through the interior of the extrusion sleeve (905) and extends into the lower end of the interior of the housing (906). A mixing chamber is formed between the bottom of the extrusion sleeve (905) and the inner bottom of the housing (906). 9064), the lower end of the rotating rod (904) is provided with several grooves (9041), a stirring grid plate (9042) is rotatably connected inside the groove (9041), an elastic sheet (9043) is provided on the inner wall of the groove (9041), the movable end of the upper part of the elastic sheet (9043) abuts against the upper side of the groove (9041), the lower end of the stirring grid plate (9042) can extend out of the groove (9041) under the elastic force of the elastic sheet (9043), and the housing (906) is equipped with A lifting assembly is used to drive the extrusion sleeve (905) to move up and down. When the extrusion sleeve (905) moves downward, the stirring grid plate (9042) retracts into the groove (9041) under the extrusion sleeve (905). The bottom of the housing (906) is provided with a discharge port (9065). The bottom of the discharge port (9065) is connected to a discharge pipe (911). A discharge valve (913) is installed on the discharge pipe (911). The bottom of the discharge pipe (911) is connected to a discharge flat nozzle (912). The housing (906) is provided with a second feed pipe (9061) and a first feed pipe (9062) that are connected to the inside of the mixing chamber (9064). Both the second feed pipe (9061) and the first feed pipe (9062) are equipped with feed valves (9063). The outlet of the first metering pump (204) is connected to the first feed pipe (9062) through the first delivery pipe (206). The outlet of the second metering pump (205) is connected to the second feed pipe (9061) through the second delivery pipe (207).

2. The manufacturing apparatus for polyurethane foam composite nylon thermal insulation strip according to claim 1, characterized in that: The lifting assembly is provided in two sets, which are located on opposite sides of the housing (906). Each set of lifting assemblies includes a mounting plate (908), a lifting electric push rod (909), and a connecting ear (910). The connecting ear (910) is fixedly connected to the top of the extrusion sleeve (905). The mounting plate (908) is fixedly connected to the lower end of one side of the housing (906). The bottom of the lifting electric push rod (909) is fixedly mounted on the mounting plate (908), and the piston rod of the lifting electric push rod (909) is fixedly connected to the bottom of the connecting ear (910).

3. The apparatus for manufacturing polyurethane foam composite nylon thermal insulation strips according to claim 2, characterized in that: The lower end of the extrusion sleeve (905) has a first annular sealing groove on its outer wall. A first sealing ring (914) is provided inside the first annular sealing groove. The outer wall of the first sealing ring (914) is in sliding sealing contact with the inner wall of the housing (906). The lower end of the extrusion sleeve (905) has a second annular sealing groove on its inner wall. A second sealing ring (915) is provided inside the second annular sealing groove. The inner wall of the second sealing ring (915) is in sealing sliding contact with the outer wall of the rotating rod (904).

4. The manufacturing apparatus for polyurethane foam composite nylon thermal insulation strip according to claim 3, characterized in that: The conveyor frame (101) is provided with a positioning mechanism (6) for positioning the nylon heat insulation strip. The positioning mechanism (6) includes a positioning electric push rod (601) and a positioning plate (602). The positioning plate (602) is fixedly connected to the top of one side of the conveyor frame (101). The positioning electric push rod (601) is fixedly installed on the top of the other side of the heat insulation strip conveying mechanism (1). A C-shaped groove (603) is fixedly installed on the piston rod end of the positioning electric push rod (601) and one side of the positioning plate (602). A roller (604) is rotatably connected to the inner side of the C-shaped groove (603). A material proximity sensor (7) is fixedly installed on the inner side of the C-shaped groove (603). The material proximity sensor (7) is electrically connected to the signal input terminal of the controller (8). The positioning electric push rod (601) is controlled by the controller (8).

5. The apparatus for manufacturing polyurethane foam composite nylon thermal insulation strips according to claim 4, characterized in that: A camera (907) is fixedly installed on the bottom of the housing (906). The camera (907) is used to identify the starting position of the groove of the nylon heat insulation strip. The camera (907) is electrically connected to the signal input terminal of the controller (8).

6. The apparatus for manufacturing polyurethane foam composite nylon thermal insulation strips according to claim 5, characterized in that: The housing (906) is provided with a clean water pipe (9066) that communicates with the mixing chamber (9064), and a water valve is installed on the clean water pipe (9066).

7. The apparatus for manufacturing polyurethane foam composite nylon thermal insulation strips according to claim 6, characterized in that: The foaming frame (5) includes an adjustment frame and a second conveyor belt (514). The second conveyor belt (514) is rotatably mounted on the inner side of the adjustment frame. A second transmission motor (511) for driving the second conveyor belt (514) to rotate is fixedly mounted on one side of the adjustment frame.

8. The apparatus for manufacturing polyurethane foam composite nylon thermal insulation strips according to claim 7, characterized in that: The adjusting frame includes a first base frame (501) and a second base frame (502). A lower hinge seat (506) is fixedly installed on the top of the first base frame (501). A lower rotating block (507) is rotatably installed inside the lower hinge seat (506). A hydraulic cylinder (508) is fixedly installed on the lower rotating block (507). A second upper rotating block (509) is fixedly connected to the piston rod end of the hydraulic cylinder (508). The second upper rotating block (509) is rotatably connected to the second upper hinge seat (510). The top of the second upper hinge seat (510) is fixedly... A first upper mounting bracket (512) is fixedly connected to the second base frame (502), and a support rod (503) is fixedly installed on the top of the support rod (503). A first upper rotating block (504) is fixedly installed on the top of the support rod (503). The first upper rotating block (504) is rotatably installed on the first upper hinge seat (505). A second upper mounting bracket (513) is fixedly installed on the top of the first upper hinge seat (505). The second conveyor belt (514) is rotatably installed between the first upper mounting bracket (512) and the second upper mounting bracket (513) via a rotating roller.

9. A method for manufacturing polyurethane foam composite nylon thermal insulation strips, characterized in that: The polyurethane foam composite nylon thermal insulation strip is prepared using the manufacturing apparatus described in claim 8, specifically including the following steps: S1. The A and B components of the two-component polyurethane are placed in the first liquid tank (202) and the second liquid tank (203) respectively for later use; S2. Place the open-type nylon heat insulation strip with the groove facing upward on the first conveyor belt (102); S3. The piston rod of the hydraulic cylinder (508) is extended or shortened by the controller (8), so that the bottom of the groove of the nylon heat insulation strip placed on the second conveyor belt (514) is in a horizontal state, thus ensuring the foaming quality. S4. The controller (8) controls the first conveyor motor (103) to start, conveying the nylon heat insulation strip towards the mixing head (9). When the end of the nylon heat insulation strip moves to the material proximity sensor (7), the material proximity sensor (7) transmits a signal to the controller (8). The controller (8) controls the piston rod of the positioning electric push rod (601) to extend, positioning the nylon heat insulation strip between the two C-shaped grooves (603). At the same time, the first metering pump (204) and the second metering pump (205) are started. According to the ratio of material A and material B, material A and material B in the first material tank (202) and the second material tank (203) are conveyed to the mixing chamber (9064). Then the second metering pump (205), the first metering pump (204) and the feed valve (9063) are closed. Then the mixing motor (902) is started. 2) Drive the rotating rod (904) to rotate. The rotating rod (904) drives the stirring grid plate (9042) to quickly stir the liquid in the mixing chamber (9064). The camera (907) detects the initial end of the nylon heat insulation strip. Then, the controller (8) controls the X-axis moving mechanism (3) to drive the mixing head (9) to move directly above the nylon heat insulation strip. Then, the Y-axis linear module (401) controls the mixing head (9) to move downward to 3-6mm above the nylon heat insulation strip. Then, the discharge valve (913) is opened. At the same time, the piston rod of the lifting electric push rod (909) is slowly retracted, so that the extrusion sleeve (905) moves downward and presses the stirring grid plate (9042) into the groove (9041). Then, the polyurethane mixed in the mixing chamber (9064) is discharged into the groove of the nylon heat insulation strip through the discharge flat nozzle (912). S5. By controlling the start of the second conveyor motor (511), the nylon heat insulation strip with added polyurethane is conveyed to the second conveyor belt (514), and naturally foamed for 3 minutes and cured to obtain a polyurethane rigid foam composite nylon heat insulation strip.

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