Heat-insulating aluminum-plastic co-extrusion profile for building doors and windows and processing method of heat-insulating aluminum-plastic co-extrusion profile

Abstract

The invention relates to the technical field of building materials, and provides a heat-insulation aluminum-plastic co-extrusion profile for building doors and windows and a processing method thereof.The heat-insulation aluminum-plastic co-extrusion profile comprises a side-hung frame, a side-hung mullion, an inward-opening window sash and a broken bridge aluminum profile, and the outside of the side-hung frame is connected with the side-hung mullion; the casement mullion is connected with the inward opening window sash; the broken bridge aluminum profile comprises a first aluminum alloy lining and a second aluminum alloy lining, and a heat insulation strip is fixed between the inner side of the first aluminum alloy lining and the inner side of the second aluminum alloy lining. The side-hung mullion comprises C-shaped grooves, and the C-shaped grooves are formed in the two sides of the outer portion of the side-hung mullion. The outer surface of the aluminum alloy is coated with epoxy glue and is wrapped with a layer of plastic profile, so that the corrosion resistance and acid and alkali resistance of the aluminum profile are enhanced; therefore, the door and window can resist corrosion of acid rain, salt corrosion and other external environments, the service life of the door and window is prolonged, external temperature conduction is effectively isolated, and the heat insulation performance of the door and window is improved.

Description

Technical Field

[0001] The invention relates to the technical field of building profiles, in particular to a heat-insulating aluminum-plastic co-extruded profile for building doors and windows and a processing method thereof. Background Art

[0002] Traditional building doors and windows often use metal materials, such as aluminum alloy, to construct window and door frames. Although metal materials have certain strength and durability, due to the high thermal conductivity of metal itself, the door and window components become a bridge for heat conduction, thereby reducing the thermal insulation performance of the building. This will lead to the conduction and convection of temperature inside and outside the building, increase the loss of cold and heat energy, increase energy consumption, and reduce indoor comfort.

[0003] With the increasing requirements for energy conservation and environmental protection, the demand for thermal insulation performance of building doors and windows is becoming increasingly urgent. In order to improve the thermal insulation performance of doors and windows, some solutions have been proposed, such as reducing heat conduction and improving the thermal insulation performance of doors and windows by setting broken bridges in aluminum alloy profiles. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a heat-insulating aluminum-plastic co-extruded profile for building doors and windows and a processing method thereof, which solves the problems of structural instability, heat insulation performance and corrosion resistance of the heat-insulating aluminum-plastic co-extruded profile for building doors and windows in the prior art. The innovative aluminum-plastic co-extruded frame and sash flush structure enriches the cross-sectional structure of aluminum-plastic co-extruded doors and windows, which better meets the needs of the market.

[0005] To achieve the above purpose, the present invention is implemented through the following technical solutions: a heat-insulating aluminum-plastic co-extruded profile for building doors and windows, comprising a casement frame, a casement stile and a thermally insulated aluminum profile, wherein the outside of the casement frame is connected to the casement stile, and the casement stile is connected to the thermally insulated aluminum profile;

[0006] The thermally-insulated aluminum profile comprises an aluminum alloy outer cover and an aluminum alloy inner cover, and a heat-insulating strip is fixed between the inner sides of the aluminum alloy outer cover and the aluminum alloy inner cover;

[0007] The casement stile comprises a C-shaped groove, wherein the C-shaped groove is arranged on one side of the interior of the casement stile, and a multi-cavity sealing strip is fixedly connected to the interior of the C-shaped groove.

[0008] Preferably, an inward-opening window sash bracket is mounted on the outside of the casement frame, and a multi-cavity sealing strip is fixedly connected to the inside of the casement frame.

[0009] Preferably, a third dovetail groove is provided on an outer side of the inward-opening window sash bracket, and a sash pressure strip is mounted on an inner wall of the third dovetail groove.

[0010] Preferably, a first dovetail groove is provided on an outer side of the casement stile, and a stile molding is slidably connected to an inner wall of the first dovetail groove.

[0011] Preferably, a second dovetail groove is provided on the outside of the thermally-broken aluminum profile, and a fan pressure strip is installed inside the second dovetail groove.

[0012] Preferably, a drainage groove is provided on the outer surface of the casement stile.

[0013] Preferably, the inner and outer surfaces of the aluminum alloy are provided with a PVC micro-foam insulation layer.

[0014] A method for processing a heat-insulating aluminum-plastic co-extruded profile for building doors and windows, which is applicable to the heat-insulating aluminum-plastic co-extruded profile for building doors and windows described above, comprises the following steps:

[0015] S1: First, the aluminum profile is produced by an aluminum extruder, and then the aluminum profile is passed through the feeding port of a plastic twin-screw extruder. The plastic powder or particles attached to the surface of the aluminum profile are melted by the rotation and heating of the screw. Subsequently, the molten plastic is mixed with the aluminum profile and extruded through a die to form the shape of an aluminum-plastic co-extruded profile.

[0016] S2: After applying epoxy glue on the outer surface of the thermally-broken aluminum profile, a layer of plastic profile is wrapped on its outer surface to prevent it from falling off and improve its acid, alkali and corrosion resistance;

[0017] S3: Then connect the inward opening window sash bracket and the flat opening middle stile, and connect the flat opening middle stile and the thermally-broken aluminum profile;

[0018] S4: A C-shaped groove is opened inside the casement stile to facilitate the use of hardware on the market. At the same time, a drainage groove is opened outside the casement stile to play a waterproof role, preventing rainwater from penetrating into the interior of doors and windows, and preventing water from causing deformation, corrosion or damage to doors and windows.

[0019] Preferably, the aluminum profile extruder described in S1 comprises a machine base and a manipulator feeding device; a guide rail is installed on the top of the machine base; an extrusion cylinder seat is slidably installed on the guide rail; an extrusion cavity is opened in the extrusion cylinder seat;

[0020] A hydraulic cylinder is slidably mounted on the machine base on the left side of the extrusion cylinder seat, and a hydraulic rod is slidably mounted in the hydraulic cylinder; a crossbeam is mounted on the machine base on the left side of the hydraulic cylinder; a die base is mounted on the base on the right side of the extrusion cylinder seat; a die for extruding aluminum profiles is mounted in the die base;

[0021] The extrusion cylinder seat is located between the die seat and the hydraulic cylinder in the initial state; a dust suppression mechanism is installed under the hydraulic cylinder, the extrusion cylinder seat and the die seat;

[0022] The dust reduction mechanism comprises two servo motors, namely a first servo motor and a second servo motor; a base is installed in the machine base below the hydraulic cylinder and the mold base;

[0023] Servo motors are installed on both bases, the first servo motor is located below the mold base, and the second servo motor is located below the hydraulic cylinder;

[0024] On one side of the two servo motors opposite to each other, a driving rod is fixedly connected to the driving shaft of the servo motor, and the two driving rods are fitted to each other, and the fitting position of the two driving rods is located directly below the extrusion cylinder seat in the initial state;

[0025] A rotating shaft is fixedly connected to one of the driving rods, and the rotating shaft rotates inside the other driving rod; three semicircular sliding grooves are provided on the outer ring surfaces of the two driving rods, and the semicircular sliding grooves on the two driving rods correspond to each other one by one;

[0026] A first sliding ring is fixedly installed on the driving rod below the mold base through locking bolts, and three semicircular sliding blocks are fixedly connected to the inner ring of the first sliding ring, and the semicircular sliding blocks slide in the semicircular sliding grooves;

[0027] A reinforcing rod is fixedly connected to the outer ring surface of the first slip ring; a mounting plate is fixedly connected to the side of the reinforcing rod away from the first slip ring, and a circular cutter is fixedly connected to the mounting plate; the circular cutter is located in the machine base in the initial state, and when the aluminum rod tailings in the mold need to be cut, the first servo motor will indirectly drive the circular cutter to rotate to cut the tailings, and the circular cutter will shield the mold;

[0028] The bottom of the extrusion cylinder seat is fixedly connected with guide plates at both sides of the extrusion cylinder seat, and the guide plates are C-shaped; the end surfaces of the two guide plates on the opposite sides are respectively flush with the end surfaces of both sides of the extrusion cylinder seat;

[0029] A second slip ring is provided on the opposite side of the two guide plates, and a semicircular slider is also fixedly connected to the inner ring surface of the second slip ring; the two second slip rings slide on the two driving rods respectively;

[0030] Both of the second slip rings are fixedly connected with a connecting plate; both of the connecting plates are fixedly connected with a shielding disk on the side away from the second slip ring, and the shielding disk is located in the machine base in the initial state and fits with the adjacent guide plate; when the extrusion cavity needs to be sealed, the two servo motors will indirectly drive the two shielding disks to rotate and shield and seal the extrusion cavity.

[0031] Preferably, an air cavity is provided in the inner wall of the shielding disk close to the die base; and evenly arranged air holes are provided on one side of the shielding disk close to the die base close to the extrusion cavity;

[0032] An air pipe is installed in the connecting plate below the air cavity, and the air pipe is connected to the air cavity, and the other end of the air pipe extends from a side of the connecting plate close to the slip ring and is connected to the air pump;

[0033] A heating wire is installed in the installation disk.

[0034] Preferably, an annular groove is provided on the end surface of the extrusion cylinder seat close to the die seat;

[0035] An annular plate is slidably connected in the annular groove via a spring, and the cross section of the annular plate is a trapezoid;

[0036] The annular plate extends out from the annular groove in an initial state, and the surface of the annular plate extending out is an inclined surface;

[0037] An arc plate is fixedly connected to the outer ring surface of the shielding disk close to the hydraulic cylinder; and a scraper is fixedly connected to the arc plate.

[0038] The present invention provides a heat-insulating aluminum-plastic co-extruded profile for building doors and windows and a processing method thereof. It has the following beneficial effects:

[0039] 1. The present invention enhances the corrosion resistance and acid and alkali resistance of aluminum profiles by applying epoxy glue on the outer surface of aluminum alloy and wrapping a layer of plastic profiles. This enables doors and windows to resist erosion from external environments such as acid rain and salt corrosion, and prolongs their service life. At the same time, the inside and outside of the profiles are connected by heat insulation strips, which effectively isolates the temperature conduction from the outside and improves the heat insulation performance of doors and windows. This can reduce the transfer of heat, keep the indoor temperature stable, reduce energy consumption, and provide a more comfortable indoor environment.

[0040] 2. The present invention uses thermal insulation aluminum-plastic co-extruded profiles in the door and window structure to effectively isolate the temperature conduction from the outside, reduce heat loss and heat exchange. It can reduce the frequency of use and energy consumption of indoor air conditioning or heating systems, thereby saving energy. At the same time, the thermal insulation aluminum-plastic co-extruded profiles separate the indoor and outdoor aluminum materials through the design of thermal insulation aluminum profiles, reduce the formation of thermal bridges, and further reduce energy losses.

[0041] 3. The present invention realizes a flush structure of the frame and sash, greatly improving the visual effect of the entire window, further enriching the cross-sectional structure of aluminum-plastic co-extruded doors and windows, and better meeting market demand.

[0042] 4. The present invention provides a dust reduction mechanism. When the aluminum rod is replaced, the mold can be shielded by a circular cutter, so that after the extrusion of an aluminum rod is completed and while waiting for the robot feeding mechanism to load the material, external dust or impurities will be adhered to the cross-section of the aluminum rod in the mold. When the aluminum rod is extruded again, these impurities will be mixed into the aluminum profile, thereby reducing the quality of the aluminum profile. At the same time, when the aluminum rod is extruded, the contact time between the mold and the external environment can be reduced, thereby reducing the amount of dust adhering to the aluminum rod.

[0043] 5. The present invention provides a dust reduction mechanism. When the aluminum rod is replaced, two shielding plates can be used to shield both sides of the extrusion cavity, thereby preventing external dust from entering the extrusion cavity. As a result, when the aluminum rod moves in the extrusion cavity, the dust in the extrusion cavity will be pushed to move, and the dust will accumulate on the end face of the aluminum rod. When the aluminum rod contacts the mold, the dust or impurities on the end face of the aluminum rod will merge with the dust adhered to the cross-section of the aluminum rod. Subsequently, the aluminum rod carrying the impurities or dust is extruded through the mold to form an aluminum profile, which will affect the quality of the aluminum profile. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The present invention will be further described below in conjunction with the accompanying drawings.

[0045] Figure 1 is a plan view of the present invention;

[0046] Figure 2 It is a schematic diagram of the structure of the aluminum-plastic co-extrusion profile of the present invention;

[0047] Figure 3 It is a schematic diagram of the aluminum-plastic co-extruded flat-opening stile structure of the present invention;

[0048] Figure 4 This is a schematic diagram of the aluminum-plastic co-extruded flat open frame structure of the present invention;

[0049] Figure 5 is a three-dimensional diagram of the aluminum profile extruder of the present invention;

[0050] Figure 6 The present invention Figure 5 Internal structure diagram of the aluminum extrusion machine;

[0051] Figure 7 It is a three-dimensional diagram of the dust reduction mechanism in the aluminum profile extruder of the present invention when it is working;

[0052] Figure 8 The present invention Figure 7 Internal structure diagram of the aluminum extrusion machine;

[0053] Fig. 9 It is a structural diagram of the dust reduction mechanism in the present invention;

[0054] Fig.10 The present invention Figure 7 A top view of the aluminum extrusion press;

[0055] Fig.11 The present invention Fig.10 Sectional view at AA;

[0056] Fig.12 The present invention Fig.11 A partial enlarged view of point B in the middle;

[0057] Fig.13 The present invention Fig.12 A partial enlarged view of point C in the middle.

[0058] In the figure: 1. Casement frame; 2. Casement stile; 3. Inward opening window sash; 4. Sash molding; 5. Frame stile molding; 6. Frame stile molding; 7. Semi-coated aluminum-plastic co-extruded profile; 8. Aluminum alloy outer cover; 9. Aluminum alloy inner cover; 10. Insulation strip; 11. PVC micro-foam insulation layer; 12. Drainage trough; 13. Multi-cavity sealing strip; 14. Sealing strip; 15. C-shaped groove; 16. First dovetail groove; 17. Second dovetail groove; 18. Third dovetail groove; 19. U-shaped groove; 21. Machine base; 22. Guide rail; 23. Extrusion cylinder base; 24 , extrusion chamber; 25, hydraulic cylinder; 26, hydraulic rod; 27, die base; 28, die; 31, first servo motor; 32, second servo motor; 33, drive rod; 34, semicircular slide groove; 41, first slip ring; 42, semicircular slider; 43, reinforcing rod; 44, mounting plate; 45, circular cutter; 51, guide plate; 52, second slip ring; 53, connecting plate; 54, shielding plate; 55, air cavity; 56, air hole; 57, air pipe; 61, annular groove; 62, annular plate; 63, arc plate; 64, scraper. DETAILED DESCRIPTION

[0059] The following will be combined with the drawings of the present invention specification to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0060] Example 1: Please refer to the attached Figure 1-3 The embodiment of the present invention provides a heat-insulating aluminum-plastic co-extruded profile for building doors and windows and a processing method thereof, comprising a casement frame 1, a casement stile 2 and an inner opening sash 3, the outer portion of the casement frame 1 is connected to the casement stile 2, and the casement stile 2 is connected to the aluminum-plastic co-extruded profile 7;

[0061] The thermal break aluminum profile 7 includes an aluminum alloy outer cover 8 and an aluminum alloy inner cover 9. A heat insulation strip 10 is fixed between the inner sides of the aluminum alloy outer cover 8 and the aluminum alloy inner cover 9. The outer surface of the aluminum alloy inner cover 9 is provided with a PVC micro-foam insulation layer.

[0062] Specifically, the aluminum-plastic co-extruded profiles 7 have excellent strength and corrosion resistance and are used to form the main structure of doors and windows. They provide stable support and structural strength for doors and windows, ensuring the stability and safety of doors and windows.

[0063] The function of the heat insulation strip 10 is to reduce the conduction of heat and improve the heat insulation performance of doors and windows. It reduces the transmission of heat in doors and windows, thereby effectively reducing energy loss;

[0064] The PVC micro-foam insulation layer is located on the outer surface of the aluminum-plastic co-extruded profile 11. It is made by micro-foaming the PVC material, and has a lower thermal conductivity and better thermal insulation performance. The insulation layer further enhances the thermal insulation performance of the doors and windows and reduces the conduction of heat. At the same time, the PVC material also has excellent weather resistance and corrosion resistance, which improves the durability and service life of the doors and windows.

[0065] The casement stile 2 includes a C-shaped groove 15 . The C-shaped groove 15 is opened on one side of the interior of the casement stile 2 . A multi-cavity sealing strip 13 is fixedly connected to the interior of the C-shaped groove 15 .

[0066] Specifically, the multi-cavity sealing strip 13 is used to provide sealing performance and sound insulation effect for doors and windows. It is fixed inside the C-shaped groove 15 to form a continuous sealing strip, filling the gap on one side of the inner side of the casement stile 2, and the structural design of the multi-cavity sealing strip 13 can effectively block the propagation of sound waves. It can reduce the intrusion of outdoor noise, provide a better indoor quiet environment, and enhance the sound insulation effect of doors and windows.

[0067] Please refer to the attached Figure 4 The outside of the casement frame 1 is equipped with an inward opening window sash 3, and the inner side of the casement frame 1 is fixedly connected with a multi-cavity sealing strip 13.

[0068] Specifically, the inward opening window sash 3 is installed on the outside of the casement frame 1 to support and fix the inward opening window sash. It provides a stable structural support so that the inward opening window sash can be opened and closed smoothly. The multi-cavity sealing strip 13 is fixedly connected to the inner side of the casement frame 1 to provide sealing performance for doors and windows. It fills the gap between the casement frame 1 and the window sash to prevent air, moisture, dust and other foreign substances from entering the room, keeping the room dry and clean;

[0069] Please refer to the attached Figure 4 A third dovetail groove 18 is provided on the outer side of the inward opening window sash 3 , and a sash strip 4 is mounted on the inner wall of the third dovetail groove 18 .

[0070] Specifically, the fan strip 4 is closely attached to the inner wall of the third dovetail groove 18 to form a sealed gap, which can effectively prevent foreign substances such as air, moisture and dust from entering the interior of the door and window, and keep the room dry and clean.

[0071] Please refer to the attached Figure 3 A second dovetail groove 17 is provided on one side of the exterior of the casement middle stile 2, and a frame stile molding 5 is slidably connected to the inner wall of the second dovetail groove 17.

[0072] Specifically, the frame-mud strip 5 is slidably connected to the inner wall of the second dovetail groove 17, firmly fixing the casement muntin 2 to the window frame. It provides a stable connection, so that the casement muntin 2 can be smoothly opened and closed while maintaining good structural stability, and the design of the frame-mud strip 5 enables it to provide support for the casement muntin 2. It can withstand a certain pressure and load, ensuring that the casement muntin 2 remains stable and strong during use.

[0073] Please refer to the attached Figure 2 A first dovetail groove 16 is provided on the outside of the aluminum-plastic co-extruded profile 7, and a frame bar molding 5 is installed inside the first dovetail groove 16.

[0074] Specifically, the first dovetail groove 16 is a groove on the outside of the aluminum-plastic co-extruded profile 7. It is located on one side or the bottom of the profile and is used to connect or fix other components. The design of the first dovetail groove 16 allows it to fit closely with other accessories to form a reliable connection while maintaining the structural stability of the window frame. The frame and stile molding 5 is a component assembled inside the first dovetail groove 16. It is made of PVC material and has the characteristics of softness and durability. The function of the frame and stile molding 5 is to provide sealing and heat insulation functions. When the window is closed, the frame and stile molding 5 will be in close contact with the window frame, fill the window gap, and prevent foreign substances such as air, moisture and noise from entering the room. In addition, the frame and stile molding 5 can also effectively isolate the conduction of cold and heat and improve the thermal insulation performance of the window.

[0075] Please refer to the attached Figure 1 A drainage groove 12 is provided on the outer surface of the casement middle stile 2, and the casement middle stile 2 is composed of an aluminum-plastic co-extruded profile.

[0076] Specifically, the gutter 12 is a channel on the outer surface of the casement stile 2 for draining rainwater or other liquids. It has a certain inclination to ensure that water can flow out smoothly without accumulating inside the window frame. The gutter 12 helps prevent moisture from penetrating into the window frame, keeping the window dry and preventing water damage.

[0077] Embodiment 2: A method for processing a heat-insulating aluminum-plastic co-extruded profile for building doors and windows, which is applicable to the heat-insulating aluminum-plastic co-extruded profile for building doors and windows described above, comprises the following steps:

[0078] S1: First, the aluminum profile is produced by an aluminum extruder, and then the aluminum profile is passed through the feeding port of a plastic twin-screw extruder. The plastic powder or particles attached to the surface of the aluminum profile are melted by the rotation and heating of the screw. Subsequently, the molten plastic is mixed with the aluminum profile and extruded through a die to form the shape of an aluminum-plastic co-extruded profile.

[0079] Specifically, aluminum-plastic co-extrusion profiles combine the advantages of aluminum and plastic. Aluminum has good strength and rigidity, while plastic has good weather resistance, heat insulation and sealing. By combining the two, better comprehensive performance can be obtained, and plastic has good elasticity and plasticity, which can fill the irregular parts of the aluminum profile surface and improve the sealing performance of the window frame. Through the aluminum-plastic co-extrusion process, plastic and aluminum profiles are closely combined, which can effectively prevent external substances such as air, moisture and noise from entering the room.

[0080] S2: After applying epoxy glue on the outer surface of the thermally-broken aluminum profile 9, a layer of plastic profile is wrapped on the outer surface to prevent it from falling off and improve its acid, alkali and corrosion resistance;

[0081] S3: Then, the inward opening window sash 3 and the casement middle stile 2 are connected, and the casement middle stile 2 and the aluminum-plastic co-extruded profile 7 are connected;

[0082] S4: A C-shaped groove 17 is provided inside the casement stile 2 to facilitate the use of hardware on the market. At the same time, a drainage groove 12 is provided outside the casement stile 2 to achieve waterproofing, thereby preventing rainwater from penetrating into the interior of doors and windows, and preventing water from causing deformation, corrosion or damage to doors and windows.

[0083] In summary, the present invention enhances the corrosion resistance and acid and alkali resistance of the aluminum profile by applying epoxy glue on the outer surface of the aluminum alloy 9 and wrapping a layer of plastic profile. This enables the doors and windows to resist the erosion of the external environment such as acid rain and salt corrosion, prolongs their service life, effectively isolates the temperature conduction from the outside, and improves the thermal insulation performance of the doors and windows. This can reduce the transfer of heat, keep the indoor temperature stable, reduce energy consumption, and provide a more comfortable indoor environment.

[0084] Finally, the heat-insulating aluminum-plastic co-extruded profile is used in the door and window structure, and the heat-insulating strip is used to connect the inside and outside, effectively isolating the temperature conduction from the outside, reducing the loss of heat and the exchange of heat and cold. The use frequency and energy consumption of indoor air conditioning or heating systems can be reduced, thereby saving energy. At the same time, the heat-insulating aluminum-plastic co-extruded profile separates the indoor and outdoor aluminum materials through the design of the aluminum-plastic co-extruded profile 7, reducing the formation of thermal bridges and further reducing energy losses.

[0085] The innovative aluminum-plastic co-extruded profile frame and sash flush structure enriches the cross-sectional structure of aluminum-plastic co-extruded doors and windows. The aluminum-plastic co-extruded frame and sash flush structure brings a more beautiful visual enjoyment, and has excellent heat insulation and thermal insulation performance, which is more in line with market demand.

[0086] Please refer to the attached Figure 5-13 More specifically, the aluminum profile extruder described in S1 includes a machine base 21 and a manipulator feeding device; a guide rail 22 is installed on the top of the machine base 21; an extrusion cylinder seat 23 is slidably installed on the guide rail 22; an extrusion cavity 24 is opened in the extrusion cylinder seat 23;

[0087] A hydraulic cylinder 25 is slidably mounted on the machine base 21 on the left side of the extrusion cylinder seat 23, and a hydraulic rod 26 is slidably mounted in the hydraulic cylinder 25; a crossbeam is mounted on the machine base 21 on the left side of the hydraulic cylinder 25; a die base 27 is mounted on the base on the right side of the extrusion cylinder seat 23; a die 28 for extruding aluminum profiles is mounted in the die base 27;

[0088] The extrusion cylinder seat 23 is initially located between the die seat 27 and the hydraulic cylinder 25; a dust suppression mechanism is installed below the hydraulic cylinder 25, the extrusion cylinder seat 23 and the die seat 27;

[0089] The dust suppression mechanism includes two servo motors, namely a first servo motor 31 and a second servo motor 32; a base is installed in the machine base 21 below the hydraulic cylinder 25 and the mold base 27;

[0090] Servo motors are installed on both bases. The first servo motor 31 is located below the mold base 27, and the second servo motor 32 is located below the hydraulic cylinder 25.

[0091] On one side of the two servo motors, a driving rod 33 is fixedly connected to the driving shaft of the servo motors, and the two driving rods 33 fit each other, and the position where the two driving rods 33 fit together is located directly below the extrusion cylinder seat 23 in the initial state;

[0092] A rotating shaft is fixedly connected to one of the driving rods 33, and the rotating shaft rotates inside the other driving rod 33; three semicircular sliding grooves 34 are formed on the outer circumference of the two driving rods 33, and the semicircular sliding grooves 34 on the two driving rods 33 correspond to each other one by one;

[0093] A first sliding ring 41 is fixedly installed on the driving rod 33 below the mold base 27 through locking bolts, and three semicircular sliders 42 are fixedly connected to the inner ring of the first sliding ring 41, and the semicircular sliders 42 slide in the semicircular sliding grooves 34;

[0094] A reinforcing rod 43 is fixedly connected to the outer ring surface of the first slip ring 41; a mounting plate 44 is fixedly connected to the side of the reinforcing rod 43 away from the first slip ring 41, and a circular cutter 45 is fixedly connected to the mounting plate 44; in the initial state, the circular cutter 45 is located in the machine base 21, and when it is necessary to cut the aluminum rod tailings in the mold 28, the first servo motor 31 will indirectly drive the circular cutter 45 to rotate to cut the tailings, and the circular cutter 45 will shield the mold 28;

[0095] The bottom of the extrusion cylinder seat 23 is fixedly connected with guide plates 51 at both sides of the extrusion cylinder seat 23, and the guide plates 51 are C-shaped; the end surfaces of the two guide plates 51 on the opposite sides are flush with the end surfaces of both sides of the extrusion cylinder seat 23;

[0096] The two guide plates 51 are provided with a second sliding ring 52 on the opposite side, and the inner surface of the second sliding ring 52 is also fixedly connected with a semicircular slider 42; the two second sliding rings 52 slide on the two driving rods 33 respectively;

[0097] The two second slip rings 52 are both fixedly connected with a connecting plate 53; the two connecting plates 53 are both fixedly connected with a shielding plate 54 on one side away from the second slip ring 52, and the shielding plate 54 is initially located in the machine base 21 and fits with the adjacent guide plate 51; when the extrusion cavity 24 needs to be sealed, the two servo motors will indirectly drive the two shielding plates 54 to rotate and shield and seal the extrusion cavity 24;

[0098] Specifically, when making aluminum profiles, the heated aluminum rod is first transferred between the hydraulic cylinder 25 and the extrusion cylinder seat 23 by the manipulator feeding device, and then the hydraulic cylinder 25 is controlled to extend, and the extended hydraulic cylinder 25 will gradually push the heated aluminum rod into the extrusion cavity 24. When the aluminum rod gradually enters the extrusion cavity 24, the extrusion cavity 24 can scrape the outer ring surface of the aluminum rod, so that dust or impurities attached to the surface of the aluminum rod can be scraped off, and then the extrusion cylinder seat 23 is controlled to move to the position of the die seat 27 and fit with the die seat 27, and then the hydraulic cylinder 25 moves to the position of the extrusion cylinder seat 23, so that the aluminum rod in the extrusion cavity 24 can be extruded from the die 28, thereby forming a thermally-broken aluminum profile;

[0099] More specifically, after the extrusion of the aluminum rod is completed, the extrusion cylinder seat 23 and the hydraulic cylinder 25 are controlled to gradually restore to their initial states. After the extrusion cylinder seat 23 and the hydraulic cylinder 25 restore to their initial states, the first servo motor 31 is controlled to rotate 120 degrees. The first servo motor 31 will drive the driving rod 33 connected to the first servo motor 31 to rotate. The driving rod 33 will drive the first slip ring 41 and the second slip ring 52 located between the extrusion cylinder seat 23 and the mold 28 to rotate. The first slip ring 41 drives the mounting plate 44 and the circular cutter 45 to rotate through the reinforcing rod 43. The circular cutter 45 will gradually overlap with the tailings on the mold 28 and gradually cut off the remaining tailings of the aluminum rod. After the circular cutter 45 rotates 120 degrees, the circular cutter 45 will cover the mold 28 and fit with the mold 28, thereby blocking the mold 28 from contacting the external environment. During the rotation of the second slip ring 52, The shielding plate 54 is driven to rotate by the connecting plate 53, and the shielding plate 54 will rotate along the guide plate 51. When the shielding plate 54 rotates to 120 degrees, the shielding plate 54 covers the opening on the right side of the extrusion chamber 24, and the shielding plate 54 fits with the right end surface of the extrusion cylinder seat 23. Then, the hydraulic rod 26 is controlled to gradually retract into the hydraulic cylinder 25. When the hydraulic rod 26 extends out of the extrusion chamber 24, the second servo motor 32 is controlled to rotate 120 degrees. The second servo motor 32 drives the driving rod 33 connected to the second servo motor 32 to rotate. The driving rod 33 drives the second slip ring 52, the connecting plate 53 and the shielding plate 54 on the driving rod 33 to rotate. After the shielding plate 54 rotates 120 degrees, the shielding plate 54 covers the opening on the left side of the extrusion chamber 24, and the shielding plate 54 fits with the left end surface of the extrusion cylinder seat 23, thereby blocking the extrusion chamber 24 from contacting the external environment.

[0100] Furthermore, when the robot feeding device transfers the new aluminum rod to between the extrusion cylinder seat 23 and the cylinder seat 23, the hydraulic rod 26 is controlled to extend, thereby pushing the aluminum rod to move toward the extrusion chamber 24. When the aluminum rod contacts the baffle plate 54 on the left side of the extrusion cylinder seat 23, the second servo motor 32 is controlled to rotate and gradually restore the initial state. The baffle plate 54 will gradually stagger with the left opening of the extrusion chamber 24. When the baffle plate 54 is completely staggered with the left opening of the extrusion chamber 24, the hydraulic rod 26 continues to push the aluminum rod into the extrusion chamber 24, and then controls the hydraulic cylinder 25 and the extrusion cylinder seat 23 to move together. During the movement of the extrusion cylinder seat 23, the two baffle plates 54 will be driven to move. At the same time, the baffle plate 54 will drive the second slip ring 52 to move on the two driving rods 33 through the connecting plate 53. When the baffle plate 54 on the right side of the extrusion cylinder seat 23 is When 54 contacts the mounting plate 44, the first servo motor 31 is controlled to rotate and return to the initial state. The first servo motor 31 will drive the driving rod 33 to rotate, and the driving rod 33 will drive the shielding plate 54 and the circular cutter 45 between the extrusion cylinder seat 23 and the die seat 27 to rotate. When the shielding plate 54 and the circular cutter 45 rotate into the machine base 21, the extrusion cylinder seat 23 is continued to be controlled to move until the extrusion cylinder seat 23 fits with the die 28. When the extrusion cylinder seat 23 fits with the die seat 27, the second slip ring 52 located on the left side of the extrusion cylinder seat 23 is located at the end position of the driving rod 33 connected to the second servo motor 32. Then the hydraulic rod 26 is controlled to continue to extend, so that the aluminum rod in the extrusion cavity 24 can be pushed to move and pass through the die 28 to form an aluminum profile. When the extrusion of the aluminum rod is completed, the above operation can be repeated;

[0101] It should be noted that in the prior art, when extruding aluminum bars, the materials are fed one by one through a feeding device. After one of the aluminum bars is extruded and the tail is removed, it is necessary to wait for the feeding device to transfer the next aluminum bar to the extrusion cavity 24. However, during this period, dust or impurities in the external environment will adhere to the cut surface of the aluminum bar in the mold 28, and dust or impurities will also enter the extrusion cavity 24. Therefore, when the next aluminum bar is extruded, the aluminum bar moving in the extrusion cavity 24 will push the dust in the extrusion cavity 24 to move and accumulate on the end surface of the aluminum bar. When the aluminum bar contacts the mold 28, the dust or impurities on the end surface of the aluminum bar will merge with the dust adhering to the cut surface of the aluminum bar. Then, the aluminum bar carrying the impurities or dust is extruded into an aluminum profile through the mold 28, which will affect the quality of the aluminum profile.

[0102] The present invention provides a dust reduction mechanism. When the aluminum rod is replaced, the circular cutter 45 can be used to shield the mold, so that after the extrusion of an aluminum rod is completed and in the process of waiting for the manipulator feeding mechanism to load the material, dust or impurities from the outside will adhere to the cut surface of the aluminum rod in the mold 28. When the aluminum rod is extruded again, these impurities will be mixed into the aluminum profile, thereby reducing the quality of the aluminum profile. At the same time, when the aluminum rod is extruded, the contact time of the mold 28 with the external environment can be reduced, thereby reducing the amount of dust adhering to the aluminum rod.

[0103] When the aluminum rod is replaced, two shielding plates 54 can be used to shield both sides of the extrusion cavity 24 to prevent external dust from entering the extrusion cavity 24. As a result, the aluminum rod will push the dust in the extrusion cavity 24 to move during its movement in the extrusion cavity 24, and cause the dust to accumulate on the end face of the aluminum rod. When the aluminum rod contacts the mold 28, the dust or impurities on the end face of the aluminum rod will merge with the dust adhered to the cross-section of the aluminum rod, and then the aluminum rod carrying the impurities or dust will be extruded into an aluminum profile through the mold 28, which will affect the quality of the aluminum profile.

[0104] Embodiment 3: An air cavity 55 is provided in the inner wall of the shielding plate 54 close to the die base 27; and evenly arranged air holes 56 are provided on one side of the shielding plate 54 close to the die base 27 close to the extrusion cavity 24;

[0105] An air pipe 57 is installed in the connecting plate 53 below the air cavity 55, and the air pipe 57 is connected to the air cavity 55, and the other end of the air pipe 57 extends from a side of the connecting plate 53 close to the slip ring and is connected to the air pump;

[0106] A heating wire is installed in the installation disk 44;

[0107] Specifically, when the two shielding plates 54 shield both sides of the extrusion cavity 24, the air pump is controlled to pump air, and the gas in the extrusion cavity 24 can be pumped into the extrusion cavity 24 through the air pipe 57, the air cavity 55 and the air hole 56. At the same time, the dust or impurities in the extrusion cavity 24 will be discharged along with the gas, thereby further reducing the impurity content in the extrusion cavity 24 and preventing excessive impurities from being mixed in the aluminum rod and extruded into the aluminum profile.

[0108] More specifically, since a heating wire is installed in the mounting plate 44, when the circular cutter 45 covers the mold 28, the heating wire works, thereby increasing the temperature of the circular cutter 45 and providing heat for the aluminum rod in the mold 28, thereby preventing the temperature of the aluminum rod in the mold 28 from dropping and causing the aluminum rod to harden. When the hardened aluminum rod is squeezed, the pressure of the mold 28 will increase, thereby increasing the degree of wear of the mold 28.

[0109] Embodiment 4: An annular groove 61 is formed on the end surface of the extrusion cylinder seat 23 close to the die seat 27;

[0110] An annular plate 62 is slidably connected in the annular groove 61 via a spring, and the cross section of the annular plate 62 is a trapezoid;

[0111] The annular plate 62 initially extends out from the annular groove 61, and the surface of the annular plate 62 extending out is an inclined surface;

[0112] An arc plate 63 is fixedly connected to the outer ring surface of the shielding plate 54 close to the hydraulic cylinder 25; a scraper 64 is fixedly connected to the arc plate 63;

[0113] Specifically, since the protruding surface of the annular plate 62 is an inclined surface, when the shielding plate 54 rotates to the position of the annular groove 61, the shielding plate 54 will contact the inclined surface on the annular plate 62. As the shielding plate 54 continues to rotate, the annular plate 62 can be gradually squeezed into the annular groove 61, and the annular plate 62 will squeeze the spring in the annular groove 61. When the shielding plate 54 located on the right side of the extrusion cylinder seat 23 contacts the mounting plate 44, and the shielding plate 54 and the mounting plate 44 rotate to the initial state, when the shielding plate 54 is staggered from the extrusion cavity 24, the annular plate 62 will gradually slide out of the annular groove 61 under the action of the spring and fit on the mold seat 27. In this process, the mold 28 can be closed by using the annular plate 62, thereby further reducing the length of time the mold 28 is in contact with the external environment. Then, the extrusion cylinder seat 23 is controlled to fit with the mold 28, and the annular plate 62 is squeezed into the annular groove 61.

[0114] More specifically, since an arc plate 63 is fixedly connected to the shielding plate 54 near the hydraulic cylinder 25, and a scraper 64 is fixedly connected to the arc plate 63, when the second servo motor 32 controls the shielding plate 54 to rotate clockwise through the driving rod 33, the shielding plate 54 will drive the arc plate 63 and the scraper 64 to gradually pass through the end face of the aluminum rod, so that the end face of the aluminum rod can be scraped. If there is dust or impurities on the end face of the aluminum rod, the impurities on the end face of the aluminum rod will be scraped off.

[0115] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0116] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A heat-insulating aluminum-plastic co-extruded profile for building doors and windows, comprising a casement frame (1), a casement stile (2), an inward-opening window sash (3) and a thermally insulated aluminum profile (7), characterized in that: The exterior of the casement frame (1) is connected to the casement middle stile (2), and the casement middle stile (2) is connected to the inner opening leaf (3); The thermally-insulated aluminum profile (7) comprises an aluminum alloy outer cover (8) and an aluminum alloy inner cover (9), wherein a heat insulation strip (10) is fixed between the inner sides of the aluminum alloy outer cover (8) and the aluminum alloy inner cover (9); The casement stile (2) comprises a C-shaped groove (15), wherein the C-shaped groove (15) is provided on both sides of the exterior of the casement stile (2), and the exterior of the C-shaped groove (15) is fixedly connected to a multi-cavity sealing strip (13).

2. The semi-clad heat-insulating aluminum-plastic co-extruded profile for building doors and windows according to claim 1, characterized in that: The outside of the casement frame (1) is equipped with an inward-opening window sash (3) bracket, and the inside of the casement frame (1) is fixedly connected with a multi-cavity sealing strip (13); A first dovetail groove (16) is provided on one side of the outer side of the inner flat opening frame (1), and a frame and a stile strip (5) are mounted on the inner wall of the first dovetail groove (16); A second dovetail groove (17) is provided on one side of the exterior of the casement middle stile (2), and a frame and a stile pressure strip (5) are slidably connected to the inner wall of the second dovetail groove (17).

3. The semi-clad heat-insulating aluminum-plastic co-extruded profile for building doors and windows according to claim 2, characterized in that: The outside of the casement sash (3) is provided with a third dovetail groove (18), and the outside of the third dovetail groove (18) is equipped with a sash pressure strip (4); The outer surface of the casement stile (1) is provided with a drainage groove (12).

4. The semi-clad heat-insulating aluminum-plastic co-extruded profile for building doors and windows according to claim 3, characterized in that: The thermal insulation strips (10) are all made of hard nylon material; The heat-insulating aluminum-plastic co-extruded profile (7) for windows is composed of a PVC micro-foam insulation layer, hard nylon, an aluminum alloy outer cover, and an aluminum alloy inner cover; The aluminum alloy inner cover of the thermally-broken aluminum alloy (7) is provided with a PVC micro-foamed thermal insulation layer.

5. A method for processing a semi-clad heat-insulating aluminum-plastic co-extruded profile for building doors and windows, applicable to a semi-clad heat-insulating aluminum-plastic co-extruded profile for building doors and windows as claimed in any one of claims 1 to 4, characterized in that: The following steps are involved: S1: First, a thermally-insulated aluminum profile (7) is produced by an aluminum profile extruder, and then the thermally-insulated aluminum profile (7) is passed through a feeding port of a plastic twin-screw extruder, and then the plastic powder or particles attached to the surface of the aluminum profile are melted by the rotation and heating of the screw, and then the molten plastic is mixed with the aluminum profile and extruded through a die to form the shape of an aluminum-plastic co-extruded profile; S2: After applying epoxy glue on the aluminum alloy inner cover of the thermally-insulated aluminum profile (7), a layer of plastic profile is wrapped on its outer surface to prevent it from falling off and to improve its acid, alkali and corrosion resistance; S3: Then, the casement frame (1) and the casement stile (2) are connected, the casement stile (2) and the inner opening sash (3) are connected, and a multi-chamber sealing strip (13) is installed in the C groove of the casement frame (1) and the casement stile (2), so as to effectively isolate the external temperature conduction and improve the heat insulation performance of the door and window; S4: A U-shaped groove (19) is provided inside the inward opening window sash (3) to facilitate the use of hardware on the market. At the same time, a drainage groove (12) is provided outside the casement stile (2) to play a waterproof role, prevent rainwater from penetrating into the interior of the door and window, and prevent water from causing deformation, corrosion or damage to the door and window.

6. The method for processing a semi-clad heat-insulating aluminum-plastic co-extruded profile for building doors and windows according to claim 5, characterized in that: The aluminum profile extruder in S1 comprises a machine base (21) and a manipulator feeding device; a guide rail (22) is installed on the top of the machine base (21); an extrusion cylinder seat (23) is slidably installed on the guide rail (22); an extrusion chamber (24) is provided in the extrusion cylinder seat (23); A hydraulic cylinder (25) is slidably mounted on the machine base (21) on the left side of the extrusion cylinder seat (23), and a hydraulic rod (26) is slidably mounted in the hydraulic cylinder (25); a crossbeam is mounted on the machine base (21) on the left side of the hydraulic cylinder (25); a die seat (27) is mounted on the base on the right side of the extrusion cylinder seat (23); a die (28) for extruding aluminum profiles is mounted in the die seat (27); The extrusion cylinder seat (23) is located between the die seat (27) and the hydraulic cylinder (25) in an initial state; a dust reduction mechanism is installed below the hydraulic cylinder (25), the extrusion cylinder seat (23) and the die seat (27); The dust reduction mechanism comprises two servo motors, namely a first servo motor (31) and a second servo motor (32); a base is installed in the machine base (21) below the hydraulic cylinder (25) and the mold base (27); Servo motors are installed on both bases, the first servo motor (31) is located below the mold base (27), and the second servo motor (32) is located below the hydraulic cylinder (25); On one side of the two servo motors opposite to each other, a driving rod (33) is fixedly connected to the driving shaft of the servo motors, and the two driving rods (33) are fitted to each other, and the fitting position of the two driving rods (33) is located directly below the extrusion cylinder seat (23) in the initial state; A rotating shaft is fixedly connected to one of the driving rods (33), and the rotating shaft rotates inside the other driving rod (33); three semicircular sliding grooves (34) are respectively provided on the outer circumference surfaces of the two driving rods (33), and the semicircular sliding grooves (34) on the two driving rods (33) correspond to each other one by one; A first sliding ring (41) is fixedly mounted on the driving rod (33) below the mold base (27) by means of locking bolts, and three semicircular sliding blocks (42) are fixedly connected to the inner ring of the first sliding ring (41), and the semicircular sliding blocks (42) slide in the semicircular sliding grooves (34); A reinforcing rod (43) is fixedly connected to the outer ring surface of the first slip ring (41); a mounting plate (44) is fixedly connected to the side of the reinforcing rod (43) away from the first slip ring (41), and a circular cutter (45) is fixedly connected to the mounting plate (44); in an initial state, the circular cutter (45) is located in the machine base (21); when it is necessary to cut the aluminum rod tailings in the mold (28), the first servo motor (31) will indirectly drive the circular cutter (45) to rotate to cut the tailings, and the circular cutter (45) will also shield the mold (28); The bottom of the extrusion cylinder seat (23) is fixedly connected with guide plates (51) at both sides of the extrusion cylinder seat (23), and the guide plates (51) are C-shaped; the end surfaces of the two guide plates (51) on the opposite sides are respectively flush with the end surfaces of both sides of the extrusion cylinder seat (23); A second sliding ring (52) is provided on the opposite side of the two guide plates (51), and a semicircular sliding block (42) is also fixedly connected to the inner ring surface of the second sliding ring (52); the two second sliding rings (52) slide on the two driving rods (33) respectively; The two second slip rings (52) are both fixedly connected with a connecting plate (53); the two connecting plates (53) are both fixedly connected with a shielding plate (54) on the side away from the second slip ring (52), and the shielding plate (54) is initially located in the machine base (21) and fits with the adjacent guide plate (51); when the extrusion cavity (24) needs to be sealed, the two servo motors will indirectly drive the two shielding plates (54) to rotate, and shield and seal the extrusion cavity (24).

7. The method for processing a semi-clad heat-insulating aluminum-plastic co-extruded profile for building doors and windows according to claim 6, characterized in that: An air cavity (55) is provided in the inner wall of the shielding plate (54) close to the die base (27); evenly arranged air holes (56) are provided on one side of the shielding plate (54) close to the die base (27) close to the extrusion cavity (24); An air pipe (57) is installed in the connecting plate (53) below the air cavity (55), and the air pipe (57) is connected to the air cavity (55). The other end of the air pipe (57) extends from a side of the connecting plate (53) close to the slip ring and is connected to the air pump.

8. The method for processing a semi-clad heat-insulating aluminum-plastic co-extruded profile for building doors and windows according to claim 7, characterized in that: A heating wire is installed in the installation disk (44).

9. The method for processing a semi-clad heat-insulating aluminum-plastic co-extruded profile for building doors and windows according to claim 8, characterized in that: An annular groove (61) is formed on one end surface of the extrusion cylinder seat (23) close to the die seat (27); An annular plate (62) is slidably connected in the annular groove (61) via a spring, and the cross section of the annular plate (62) is a trapezoid; The annular plate (62) protrudes from the annular groove (61) in an initial state, and the protruding surface of the annular plate (62) is an inclined surface.

10. The method for processing a semi-clad heat-insulating aluminum-plastic co-extruded profile for building doors and windows according to claim 9, characterized in that: An arc-shaped plate (63) is fixedly connected to the outer ring surface of the shielding plate (54) close to the hydraulic cylinder (25); and a scraper (64) is fixedly connected to the arc-shaped plate (63).

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