L-shaped tube extrusion molding production line and tube preparation method

Abstract

This invention provides an L-shaped tube extrusion molding production line and a tube preparation method, belonging to the field of building products manufacturing. The production line includes a fabric feeding assembly, a press assembly, a mold assembly, a mold conveying assembly, an extrusion and stacking assembly, and an automatic pallet loading assembly. The mold conveying assembly is a circular circulating track. The mold assembly includes an upper mold assembly fixedly connected to the press assembly, and a lower mold assembly placed on the circular circulating track and movable along it. The fabric feeding assembly and press assembly are positioned above the longitudinal conveying assembly track, while the extrusion and stacking assembly and the automatic pallet loading assembly are positioned on one side of the transverse conveying assembly track. The tube production method involves automatic fabric feeding and extrusion molding, and automatic extrusion and stacking. The extruded tubes exhibit high density and strength, uniform wall thickness, good quality, and rapid drying and curing time. The mold, through unit combination, can accommodate the production of tubes of various specifications.

Description

Technical Field

[0001] This invention relates to the field of building product manufacturing technology, and in particular to an L-shaped tube extrusion molding production line and a tube preparation method. Background Technology

[0002] L-shaped pipe wrapping is currently widely used in the construction industry. CN208277158U discloses an adjustable L-shaped pipe wrapping mold. The pipe wrapping is formed by casting through the mold. The product has low density, low strength after forming, long drying and curing time, low automation, high labor intensity, and low production efficiency. CN111844349A discloses a cement pipe wrapping forming machine, which flattens and forms the material through a smoothing mechanism. The forming material, cement mortar, has a high moisture content. The product has a long drying and curing time and poor compatibility with pipes of different specifications. Whether it is casting or smoothing, the raw material is generally cement mortar, which has certain limitations. Summary of the Invention

[0003] Purpose of the invention: To propose an L-shaped tube extrusion molding production line and tube preparation method, which can effectively solve the above-mentioned problems existing in the prior art.

[0004] In a first aspect, an L-shaped tube extrusion molding production line is proposed. The production line includes a material feeding assembly, a press assembly, a mold assembly, a mold conveying assembly, an extrusion and stacking assembly, and an automatic pallet loading assembly. The mold conveying assembly includes a longitudinal conveying assembly and a transverse conveying assembly forming a circular loop track. The mold assembly includes an upper mold assembly fixedly connected to the press assembly and a lower mold assembly placed on the circular loop track and movable along the circular loop track. The material feeding assembly and the press assembly are located above the track in the longitudinal conveying assembly, and the extrusion and stacking assembly is located on one side of the transverse conveying assembly.

[0005] In a further embodiment of the first aspect, the fabric assembly includes a feeding assembly and a waste material collection assembly. The waste material collection assembly is disposed on one side of the feeding assembly. The feeding assembly includes a hopper frame assembly and a hopper assembly. The hopper frame assembly includes a hopper frame, a hydraulic cylinder base plate, hydraulic cylinders, and a linear guide rail. The hydraulic cylinder base plate is fixed to the upper side of the hopper frame. There are four sets of hydraulic cylinders, each fixed to the hydraulic cylinder base plate. The piston rod end of the hydraulic cylinder is fixedly connected to the hopper assembly. A linear guide rail is fixed to the inner side of the hopper frame. The hopper assembly includes a feeding hopper, a feeding hopper bottom plate, and a material... The hopper includes a width adjustment component, a cylinder, a linear guide rail, a linear guide rail base plate, a linear guide rail slider, and a vibration motor. The hopper has openings at both ends, with the lower opening having a "∟" shaped cross-section. The hopper bottom plate also has a "∟" shaped cross-section and fits snugly against the lower opening of the hopper. The hopper bottom plate can slide relative to the hopper to open and close the lower end of the hopper. Linear guide rail sliders are fixed on both sides of the hopper, and these sliders slide in conjunction with the linear guide rails inside the hopper frame. Linear guide rail base plates are also fixed to the lower ends of both sides of the hopper, extending beyond the hopper. A linear guide rail is fixed on the linear guide rail base plate. Linear guide rail sliders are fixed on both sides of the hopper bottom plate. The linear guide rail sliders on both sides of the hopper bottom plate slide in cooperation with the linear guide rails at the lower ends of both sides of the hopper. A cylinder is fixed on both sides of the hopper, and the piston rod end of the cylinder is fixedly connected to the hopper bottom plate. Vibration motors are also fixed at both ends of the hopper. The hopper width adjustment assembly includes an internal side plate, a cylindrical slider, a linear shaft, a lead screw, a lead screw nut, a bearing with a mounting seat, a bevel gear, and a reduction motor. The length of the internal side plate matches the length of the hopper's inner cavity and is aligned with the hopper's inner diameter. The inner contact fit can move up and down. The cylindrical slider is fixed on both sides of the hopper. One end of the optical shaft is fixedly connected to the inner side plate of the hopper. The optical shaft passes through the cylindrical slider and slides with the cylindrical slider. The lead screw passes through the lead screw nut and is screwed with the lead screw nut. One end of the lead screw is fixedly connected to the inner side plate of the hopper. The lead screw nut is fixed in the inner ring of the bearing with a seat. The bearing with a seat is fixed on both sides of the hopper. One end of the lead screw nut is fixed with a bevel gear. The two sides of the hopper are fixed with a reduction motor. The output shaft end of the reduction motor is fixed with a bevel gear. The bevel gear at the output shaft end of the reduction motor meshes with the bevel gear at the end of the lead screw nut for transmission.

[0006] The waste material collection assembly includes a waste material collection frame, a waste material hopper, a waste material hopper bottom plate, a waste material hopper cantilever, a cylinder, a linear guide rail, a linear guide rail slider, a hinge, and a locking hook. The waste material collection frame is located beside the hopper frame. The waste material hopper has openings at the top and bottom. The waste material hopper bottom plate is hinged to the waste material hopper via a hinge. The locking hook is located at the lower end of the waste material hopper, and the bottom plate closes the lower opening of the waste material hopper via the locking hook. The waste material hopper is fixed to one end of the waste material hopper cantilever. A linear guide rail slider is fixed to the waste material hopper cantilever, and a linear guide rail is fixed to the waste material collection frame. The linear guide rail slider on the waste material hopper cantilever and the linear guide rail on the waste material collection frame slide against each other. The cylinder is fixed to the waste material collection frame, and the piston rod end of the cylinder is fixedly connected to the waste material hopper. The cylinder extends and retracts, causing the waste material hopper to extend and retract. When the waste material hopper extends, it is located below one end of the hopper. When the waste material hopper retracts, it is located inside the waste material collection frame.

[0007] In a further embodiment of the first aspect, the press assembly includes a hydraulic cylinder, an upper beam, a lower beam, a middle beam, columns, and a working platform. The upper beam and the lower beam are fixedly connected by four columns. The hydraulic cylinder is one or more sets, and the hydraulic cylinder is fixed to the upper end of the upper beam. A through hole is provided in the middle of the upper beam, and the piston rod of the hydraulic cylinder passes through the through hole in the center of the upper beam. The middle beam is located between the upper beam and the lower beam, and through holes are provided at the four corners of the middle beam. The columns pass through the through holes at the corners of the middle beam and slide in cooperation with the through holes. The middle beam can move up and down under the drive of the hydraulic cylinder. The working platform is fixed on the upper side of the lower beam.

[0008] In a further embodiment of the first aspect, the mold assembly includes an upper mold assembly, a lower mold assembly, a support plate, and a trolley. The upper mold assembly is provided in one set on the production line. The upper end of the upper mold assembly is fixedly connected to the lower end of the central beam in the press assembly. The upper mold assembly includes an upper mold and an upper mold frame. The lower end of the upper mold has a "∟" shaped cross-section. The upper mold frame is located inside the upper mold. Multiple lower mold assemblies are provided on the production line. The lower mold assembly includes a lower mold, a mold head assembly, a linear guide slider, a linear guide, a linear guide base plate, a cylindrical slider base plate, a cylindrical slider, a limiting block connecting rod, a longitudinal mold head limiting block, a linear guide slider base plate, a transverse mold head limiting block, and limiting bolts. The lower mold includes a longitudinal module and a transverse module. The longitudinal module is composed of multiple independent longitudinal module units arranged longitudinally and tightly together, and the longitudinal module units are fixed together by bolts. The transverse module is composed of multiple independent transverse module units arranged transversely and tightly together, and the transverse module units are connected together by bolts. The transverse module units on both sides... Linear guide rails are fixed to the outer side of the lower mold. After the transverse module is placed on top of the longitudinal module and assembled, the upper cross section is shaped like a "∟". The cylindrical slider seat plate is fixed to the outer side of both ends of the lower mold. A cylindrical slider is installed on the cylindrical slider seat plate, and a limit bolt is provided on the cylindrical slider seat plate. Linear guide rail seat plates are provided inside the longitudinal module units at both ends, and linear guide rails are provided on the linear guide rail seat plates. Multiple windows are provided at the lower outer side of the longitudinal module units at both ends. Limit block connecting rods are also provided inside the longitudinal module units at both ends. Multiple longitudinal mold head limiting blocks are fixedly connected to the limiting block connecting rod. A linear guide slider seat plate is fixed to the limiting block connecting rod. A linear guide slider is fixed to the linear guide slider seat plate. The linear guide slider slides with the linear guide inside the longitudinal module unit. The longitudinal mold head limiting block can slide through the window at the lower outer end of the longitudinal module unit. Transverse mold head limiting blocks are fixed at the upper ends of both sides of the longitudinal module unit. Limiting bolts are provided on the transverse mold head limiting blocks. Linear guides are also fixed to the outer side of the end face of the longitudinal module unit at both ends.The die head assembly includes a longitudinal die head assembly and a transverse die head assembly. The longitudinal die head assembly includes a longitudinal die head, a plug, a slide bar seat plate, an optical shaft, a compression spring, a linear guide slider seat plate, and a linear guide slider. The upper section of the longitudinal die head is shaped like a "∟". A guide groove is opened at the bottom corner of the longitudinal die head, and a plug is placed in the guide groove. The plug can be removed along the direction of the guide groove. Slide bar seat plates are fixed on both sides of the longitudinal die head. An optical shaft is fixed at the lower end of the slide bar seat plate. The optical shaft is vertically arranged on both sides of the longitudinal die head, and a compression spring is sleeved on the optical shaft. The upper end of the compression spring is fixedly connected to the slide bar seat plate, and the lower end of the compression spring abuts against the cylindrical slider seat plate. Linear guide rail slider seat plates are also fixed on both sides of the longitudinal mold head. Linear guide rail sliders are fixed on the linear guide rail slider seat plates, and the linear guide rail sliders on the linear guide rail slider seat plates slide in engagement with the outer linear guide rails on the end faces of the longitudinal module units at both ends. The transverse mold head assembly includes a transverse mold head unit, an optical shaft, a compression spring, a linear guide rail slider seat plate, a linear guide rail slider, and a bolt limiting plate. The transverse mold head units are arranged longitudinally in close proximity and connected by bolts. An optical shaft is fixed on the transverse mold head units at both ends, and a compression spring is sleeved on the optical shaft. Linear guide rail slider seat plates are fixed on the transverse mold head units at both ends, and linear guide rail sliders are fixed on the linear guide rail slider seat plates. The linear guide rail sliders on the linear guide rail slider seat plates slide in engagement with the outer linear guide rails of the transverse module units on both sides. Bolt limiting plates are also fixed on the transverse mold head units at both ends. The mold head assembly can move up and down relative to the lower mold. The compression springs in the mold head assembly cause the mold head assembly to... The end face protrudes from the upper end face of the lower mold assembly. The mold head assembly and the upper end of the lower mold together form a groove with a "∟" shaped cross-section. The support plate is placed on the upper side of the lower mold. The support plate is "∟" shaped and matches the groove at the upper end of the lower mold. The support plate is placed in the groove at the upper end of the lower mold before the tube wrapping production. After the tube wrapping production is completed, it is removed from the lower mold assembly along with the formed tube. The trolley is placed on the lower side of the lower mold. The trolley includes a trolley frame, directional wheels, and trolley positioning rods. Four directional wheels are fixed to the lower end of the trolley frame, and trolley positioning rods are fixed to both sides of the trolley frame.

[0009] In a further embodiment of the first aspect, the mold conveying assembly includes a track assembly and a mold driving assembly. The track assembly is an annular circulating track in the shape of an "U". The track assembly includes a left longitudinal track, a right longitudinal track, a front transverse track, and a rear transverse track. The left longitudinal track is a fixed longitudinal track, and the right longitudinal track is composed of a fixed longitudinal track and a liftable longitudinal track assembly. The fixed longitudinal track includes a track support and a track. The liftable longitudinal track assembly includes a track support, a track, a track support base, and a hydraulic cylinder. The front and rear transverse tracks each include a track support and a track. The mold driving assembly includes a first driving robotic arm component, a second driving robotic arm component, a driving wing assembly, a first mold transfer trolley component, and a second mold transfer trolley component. The first driving robotic arm component is located above the left longitudinal track, the second driving robotic arm component is positioned above the junction of the front transverse track and the right longitudinal track, the driving wing assembly is positioned on both sides of the right longitudinal track, the first mold transfer trolley component is positioned above the front transverse track, and the second mold transfer trolley component is positioned above the rear transverse track. The first driving robotic arm component includes a robotic arm support, a robotic arm, a linear guide rail, a linear guide rail slider, gears, a rack, and a rack seat plate. The components include a geared motor, a motor base plate, a linear guide rail base plate, a cylinder, a cylinder double-ear base, a cylinder connector, an optical shaft, and a mold push plate. The robotic arm support is positioned above the left longitudinal track and extends along the left longitudinal track to both ends, exceeding the front and rear transverse tracks. The robotic arm is T-shaped. A linear guide rail is fixed to the upper side of the robotic arm support. Rack base plates are fixed to both sides of the robotic arm support, and racks are fixed to the rack base plates. Linear guide rail sliders are installed at the lower ends of both sides of the robotic arm, and these sliders slide in conjunction with the linear guide rails on the upper side of the robotic arm support. Motor base plates are installed on both sides of the robotic arm, and geared motors are mounted on the motor base plates. A gear is installed on the output shaft end of the speed reducer motor. The gear on the output shaft end of the speed reducer motor meshes with the racks on both sides of the robotic arm support for transmission. A linear guide rail base plate is fixed at the lower end of the robotic arm. A linear guide rail is fixed on the linear guide rail base plate. A mold push plate is also set at the lower end of the robotic arm. An optical shaft is fixed on the mold push plate. A linear guide rail slider is fixed on the back of the mold push plate. The linear guide rail slider on the back of the mold push plate slides with the linear guide rail on the linear guide rail base plate. A cylinder double-ear base is also fixed on the linear guide rail base plate. A cylinder is also set at the lower end of the robotic arm. The cylinder is rotatably connected to the cylinder double-ear base. A cylinder connector is installed on the piston rod end of the cylinder. The cylinder connector is rotatably connected to the optical shaft on the mold push plate.The second drive robotic arm component includes a robotic arm support, linear guide rails, linear guide rail sliders, a robotic arm, cylinders, cylinder support plates, cylinder connecting plates, and a mold push plate. The robotic arm support is positioned above the intersection of the front transverse track and the right longitudinal track. The robotic arm is T-shaped. A linear guide rail is fixed to the upper side of the robotic arm support, and linear guide rail sliders are installed at the lower ends of both sides of the robotic arm. The linear guide rail sliders at the lower ends of both sides of the robotic arm slide in cooperation with the linear guide rails on the upper side of the drive robotic arm support. Cylinder supports are fixed to both sides of the robotic arm support. A cylinder is fixed on the cylinder support plate, and cylinder connecting plates are fixed on both sides of the robotic arm. The piston rods of the cylinders on both sides of the robotic arm support are fixedly connected to the cylinder connecting plates on both sides of the robotic arm. A linear guide rail is also fixed at the lower middle end of the robotic arm. A mold push plate is also provided at the lower end of the robotic arm. A linear guide rail slider is fixed on the back of the mold push plate. The linear guide rail slider on the back of the mold push plate slides with the linear guide rail at the lower end of the robotic arm. A cylinder is provided on the robotic arm. The tail end of the cylinder is hinged to the upper end of the robotic arm, and the piston rod end of the cylinder is hinged to the mold push plate. The drive fin assembly is also mentioned. The components include linear guides, rack seat plates, racks, linear guide sliders, gears, geared motors, motor seat plates, deflector plates, rotating shafts, and limit blocks. Linear guides and rack seat plates are fixed to both sides of the track support in the right longitudinal track. A rack is fixed to the rack seat plate. Motor seat plates are also provided on both sides of the track support in the right longitudinal track. Linear guide sliders are fixed to the back of the motor seat plates, and the linear guide sliders on the back of the motor seat plates slide in engagement with the linear guides on both sides of the track support. A geared motor is also fixed to the motor seat plate, and the geared motor outputs... A gear is fixed at the end of the shaft. The gear at the output shaft of the reduction motor meshes with the racks on both sides of the track support for transmission. A rotating shaft is fixed on the side of the motor base plate. A deflector plate is installed on the rotating shaft. The deflector plate is rotatably connected to the rotating shaft. The center of gravity of the deflector plate is offset relative to the rotating shaft. When the robotic arm drives the mold to move forward along the right longitudinal track, the deflector plate rotates from a vertical state to a horizontal state. After the mold passes the deflector plate, the deflector plate rotates from a horizontal state to a vertical state due to the offset of its center of gravity relative to the rotating shaft. A limit block is also fixed on the side of the motor base plate. The limit block abuts against the deflector plate.The mold transfer trolley component one is mounted on the front transverse track and can move along the direction of the front transverse track. The mold transfer trolley component one includes a trolley frame, track, stop block, directional wheel, linear guide rail base plate, linear guide rail, linear guide rail slider, cylinder support plate, cylinder, limit block push-pull plate, mold positioning plate, rotating shaft, seated bearing, sprocket, chain, and reduction motor. The track is fixed on the trolley frame, and the track on the trolley frame is arranged in the same direction as the left longitudinal track / right longitudinal track, perpendicular to the moving direction of the trolley frame. One end of the track on the trolley frame is... There is a stop block, which is fixed to one end of the track. A directional wheel is fixed to the lower side of the trolley frame. Linear guide rail base plates are fixed to both ends of the trolley frame, and linear guide rails are fixed to the linear guide rail base plates. Cylinder support plates are installed at both ends of the trolley frame. Linear guide rail sliders are fixed to the back of the cylinder support plates, and these sliders slide against the linear guide rails at both ends of the trolley frame. A cylinder is installed on the cylinder support plate, and the tail end of the cylinder is hinged to the cylinder support plate. A linear guide rail is fixed to the cylinder support plate. A limit block push-pull plate is fixed to the end of the cylinder piston rod. Below the limit block push-pull plate... A linear guide slider is fixedly mounted. The linear guide slider below the limit block push-pull plate slides with the linear guide above the cylinder support plate. A cylinder is mounted below the cylinder support plate, with its tail end hinged to the trolley frame and its piston rod fixed to the cylinder support plate. Cylinders are located at the middle positions of both ends of the trolley frame, with their tail ends hinged to the trolley frame. A mold positioning plate is fixed to the piston rod of the cylinder. A linear guide slider is fixed to the back of the mold positioning plate, and the linear guide slider on the back of the mold positioning plate slides with the linear guides at both ends of the trolley frame. Rotating shafts are located at both ends of the front transverse track. The transverse track has bearings fixed at both ends of the track support, and the shaft is fixed at both ends of the bearings. A sprocket is installed on the shaft. A chain is set along the direction of the front transverse track. The two ends of the chain are fixed to the front and rear ends of the mold transfer trolley, respectively. The beginning and end of the chain are connected to the mold transfer trolley and closed. The closed chain meshes with the sprockets on the shaft at both ends of the front transverse track. A sprocket is also fixed on the shaft. The geared motor is fixed on the motor base plate. The motor base plate is fixed to the track support. A sprocket is installed on the output shaft end of the geared motor. The sprocket on the output shaft end of the geared motor and the sprocket on the shaft are driven by the chain meshing.The second mold transfer trolley component is mounted on the rear transverse track and can move along the rear transverse track. The second mold transfer trolley component includes a trolley frame, track, stop block, directional wheel, linear guide rail, linear guide rail slider, cylinder, mold positioning plate, shaft, bearing with seat, sprocket, chain, and reduction motor. The track is fixed to the trolley frame, and the track on the trolley frame is arranged in the same direction as the left / right longitudinal track and perpendicular to the moving direction of the trolley frame. A stop block is provided at one end of the track on the trolley frame, and the stop block is fixed to one end of the track. The directional wheel is fixed to the lower side of the trolley frame. A cylinder is located at the middle position of both ends of the trolley frame, and the tail end of the cylinder is hinged to the trolley frame. A mold positioning plate is fixed to the piston rod end of the cylinder. A linear guide slider is fixed to the back, and the linear guide slider on the back of the mold positioning plate slides in conjunction with the linear guides at both ends of the trolley frame. A rotating shaft is installed at both ends of the rear transverse track. Bearings with seats are fixed at both ends of the track support of the rear transverse track. The rotating shafts are fixed in the bearings with seats, and sprockets are mounted on the rotating shafts. A chain is arranged along the rear transverse track, with both ends of the chain fixed to the front and rear ends of the mold transfer trolley, respectively. The chain ends are connected to the mold transfer trolley and closed. The closed chain meshes with the sprockets on the rotating shafts at both ends of the rear transverse track. Sprockets are also fixed on the rotating shafts. A reduction motor is fixed to a motor base plate, which is fixed to the track support. A sprocket is installed on the output shaft end of the reduction motor, and the sprocket on the output shaft end of the reduction motor engages with the sprocket on the rotating shaft for transmission.

[0010] In a further embodiment of the first aspect, the die-out stacking assembly includes a die head pressure-reducing assembly, a tube-pushing assembly, and a tube-storing rack. The die head pressure-reducing assembly, tube-pushing assembly, and tube-storing rack are arranged longitudinally and adjacent to each other. There are four sets of die head pressure-reducing assemblies. Each die head pressure-reducing assembly includes a die head pressure-reducing frame, a hydraulic cylinder seat plate, a hydraulic cylinder, and a flange. The hydraulic cylinder seat plate is fixed to the die head pressure-reducing frame, and a hydraulic cylinder is fixed to the hydraulic cylinder seat plate. A flange is fixed to the piston rod end of the hydraulic cylinder. The tube-pushing assembly includes a tube-pushing frame component, a height-adaptive lifting seat component one, and a driving robotic arm component three. The height-adaptive lifting seat component one is disposed within the tube-pushing frame component, and the driving robotic arm component three is located above the height-adaptive lifting seat component one. The support and push frame component includes a support and push frame, a rack, and a linear guide rail. The rack and linear guide rail are vertically fixed on the support and push frame. The height-adaptive lifting seat component includes a height-adaptive seat frame, a linear guide rail, a linear guide rail slider, a rack, a motor base plate, a reduction motor, and a gear. The upper end of the height-adaptive seat frame is shaped like a "∟". Linear guide rails and racks are fixed to the upper ends of both sides of the height-adaptive seat frame, respectively. A motor base plate is fixed on the height-adaptive seat frame, and a reduction motor is fixed on the motor base plate. A gear is installed on the output shaft end of the reduction motor. The gear on the output shaft end of the reduction motor meshes with the rack on the support and push frame for transmission. Linear guide rail sliders are also fixed on both sides of the height-adaptive seat frame, and the linear guide rail sliders on both sides of the height-adaptive seat frame slide with the linear guide rails on the support and push frame.The aforementioned drive robotic arm component three includes an upper robotic arm, a lower robotic arm, a linear guide rail, a linear guide rail slider, a motor base plate, a reduction motor, gears, a linear guide rail base plate, a cylinder, an optical shaft, a mold push plate, and a cylinder connector. The upper robotic arm is positioned above the lower robotic arm, and the lower robotic arm can move longitudinally along the upper robotic arm. The upper and lower robotic arm are combined to form a T-shape. Linear guide rail sliders are fixed to the lower sides of both sides of the upper robotic arm, and these sliders slide in cooperation with the upper linear guide rails on both sides of the height-adaptive base. A motor base plate is fixed to the lower sides of both sides of the upper robotic arm, and a reduction motor is fixed to the motor base plate. A gear is fixed to the output shaft of the reduction motor, and the gear on the output shaft meshes with the racks on both sides of the height-adaptive base. A linear guide rail is also fixed to the lower part of the upper robotic arm, and a linear guide rail slider is fixed to the upper end of the lower robotic arm. The linear guide rail slider at the upper end of the lower robotic arm is connected to the upper part of the lower robotic arm. The robotic arm features a linear guide rail sliding engagement. A cylinder is located below the upper part of the robotic arm, with its tail hinged to the upper part and its piston rod fixed to the lower part. A linear guide rail base plate is fixed to the lower side of the robotic arm, and a linear guide rail is fixed to the base plate. A mold push plate is located at the front of the lower part of the robotic arm, with a linear guide rail slider fixed to its back. The slider slides against the linear guide rail on the lower side of the robotic arm. A cylinder is located at the front of the linear guide rail base plate, with its tail hinged to the base plate. A cylinder connector is installed on the piston rod of the cylinder. An optical shaft is fixed to the mold push plate, and the cylinder connector is rotatably connected to the optical shaft on the mold push plate. The tubing storage rack is a multi-layer structure, comprising a storage frame and storage tiered supports. The storage tiered supports are arranged in multiple layers evenly distributed vertically and fixed to the storage frame, forming a "∟" shape.

[0011] In a further embodiment of the first aspect, the automatic pallet loading assembly includes a die head pressing assembly, a tube pushing assembly, a tube storage rack, and a pallet pushing assembly. These components are arranged longitudinally and sequentially adjacent to each other. There are two sets of die head pressing assemblies, each including a die head pressing frame, a hydraulic cylinder seat plate, a hydraulic cylinder, and a flange. The hydraulic cylinder seat plate is fixed to the die head pressing frame, and a hydraulic cylinder is fixed to the hydraulic cylinder seat plate. A flange is fixed to the piston rod end of the hydraulic cylinder. The tube pushing assembly includes a tube pushing frame component, a height-adaptive lifting seat component one, and a drive robotic arm component three. The height-adaptive lifting seat component one is disposed within the tube pushing frame component, and the drive robotic arm component three is located within the height-adaptive lifting seat component. The above-mentioned support and push frame component includes a support and push frame, a rack, and a linear guide rail. The rack and linear guide rail are vertically fixed on the support and push frame. The height-adaptive lifting seat component includes a height-adaptive seat frame, a linear guide rail, a linear guide rail slider, a rack, a motor base plate, a reduction motor, and a gear. The upper end of the height-adaptive seat frame is shaped like a "∟". Linear guide rails and racks are fixed to the upper ends of both sides of the height-adaptive seat frame, respectively. A motor base plate is fixed on the height-adaptive seat frame, and a reduction motor is fixed on the motor base plate. A gear is installed on the output shaft end of the reduction motor. The gear on the output shaft end of the reduction motor meshes with the rack on the support and push frame. Linear guide rail sliders are also fixed on both sides of the height-adaptive seat frame. The linear guide rail sliders on both sides of the height-adaptive seat frame slide with the linear guide rails on the support and push frame.The aforementioned drive robotic arm component three includes an upper robotic arm, a lower robotic arm, a linear guide rail, a linear guide rail slider, a motor base plate, a reduction motor, gears, a linear guide rail base plate, a cylinder, an optical shaft, a mold push plate, and a cylinder connector. The upper robotic arm is positioned above the lower robotic arm, and the lower robotic arm can move longitudinally along the upper robotic arm. The upper and lower robotic arm components are combined to form a T-shape. Linear guide rail sliders are fixed to the lower sides of both sides of the upper robotic arm, and these sliders slide in cooperation with the upper linear guide rails on both sides of the height-adaptive mounting frame. A motor base plate is fixed to the lower sides of both sides of the upper robotic arm, and a reduction motor is fixed to the motor base plate. A gear is fixed to the output shaft end of the reduction motor, and the gear at the output shaft end of the reduction motor meshes with the racks on both sides of the height-adaptive mounting frame. A linear guide rail is also fixed to the lower side of the upper robotic arm. A linear guide slider is fixed to the upper part of the lower part of the robotic arm. The linear guide slider at the upper part of the lower part of the robotic arm slides in conjunction with the linear guide rail at the lower part of the upper part of the robotic arm. A cylinder is also provided at the lower part of the upper part of the robotic arm. The tail end of the cylinder is hinged to the upper part of the robotic arm. The piston rod end of the cylinder is fixed to the lower part of the robotic arm. A linear guide plate is fixed to the side of the lower part of the robotic arm. A linear guide rail is fixed to the linear guide plate. A mold push plate is provided on the front side of the lower part of the robotic arm. A linear guide slider is fixed to the back of the mold push plate. The linear guide slider on the back of the mold push plate slides in conjunction with the linear guide rail on the linear guide plate on the side of the lower part of the robotic arm. A cylinder is provided on the front side of the linear guide plate. The tail end of the cylinder is hinged to the linear guide plate on the side of the lower part of the robotic arm. A cylinder connector is installed on the piston rod end of the cylinder. An optical shaft is fixed to the mold push plate. The cylinder connector is rotatably connected to the optical shaft on the mold push plate.The aforementioned storage rack is a multi-layer structure, comprising a storage frame and storage layer supports. The storage layer supports are arranged in multiple layers evenly distributed vertically and are fixed to the storage frame. The storage layer supports are shaped like a "∟". The pallet pushing assembly includes a support pushing frame component, a height-adaptive lifting seat component two, and a pallet pushing robot component. The height-adaptive lifting seat component two is disposed within the support pushing frame component and can move up and down. The support pushing frame component includes a support pushing frame, a rack, and linear guides. The rack and linear guides are vertically fixed on the support pushing frame. The height-adaptive lifting seat component two includes a height-adaptive seat frame, linear guides, linear guide sliders, a motor base plate, a reduction motor, gears, a cylinder, and a cylinder support plate. The upper end of the height-adaptive seat frame is shaped like a "∟". Linear guides are fixed to the upper ends of both sides of the height-adaptive seat frame. The linear guides are arranged longitudinally along the height-adaptive seat frame. A motor base plate is fixed on the height-adaptive seat frame, and a reduction motor is fixed on the motor base plate. The output shaft end of the reduction motor... The device is equipped with gears, and the gear at the output shaft of the reduction motor meshes with the rack on the tube pushing frame for transmission. Linear guide sliders are fixed on both sides of the height-adaptive mounting frame, and these sliders slide with the linear guides on the tube pushing frame. A cylinder support plate is also fixed on the height-adaptive mounting frame, and a cylinder is mounted on the support plate. The tail end of the cylinder is hinged to the support plate. The pallet pushing robot component includes a pallet pusher, a pusher cantilever, and linear guide sliders. The pallet pusher is shaped like a "∟". The front end of the pusher cantilever is fixed to the pallet pusher. A linear guide slider is fixed below the pusher cantilever, and it slides with the linear guides on the upper sides of the height-adaptive mounting frame. The piston rod end of the cylinder on the cylinder support plate is fixed to the pallet pusher.

[0012] Secondly, a method for preparing extruded tubing is proposed, which utilizes the tubing extrusion molding production line described in the first aspect. The preparation method steps are as follows:

[0013] 1) Automatic tray loading

[0014] The pallet pusher pushes the pallet, which is pre-placed on the storage rack, onto the height-adaptive frame. The height-adaptive frame automatically rises to match the height of the lower mold. The hydraulic cylinder in the mold head pressure reduction assembly presses down the longitudinal mold head. The three cylinders in the drive robotic arm component lower the mold pusher. The mold pusher pushes the pallet to move towards the lower mold. When the pallet moves into the groove formed by the lower mold and the mold head assembly, it stops moving. The piston rod of the hydraulic cylinder in the mold head pressure reduction assembly retracts, causing the longitudinal mold head to rise back to its original position. The pallet then enters the groove formed by the lower mold and the mold head assembly.

[0015] 2) Apply release agent and lay mesh.

[0016] Apply release agent to the upper side of the pallet and the inner side of the groove formed by the lower mold and the mold head assembly. Then place the mesh cloth or wire mesh into the groove formed by the lower mold and the mold head assembly and place it on the pallet.

[0017] 3) Automatic material feeding and pre-compression fixing

[0018] The hydraulic cylinder in the hopper assembly lowers the hopper assembly. When the bottom plate of the hopper in the hopper assembly is in contact with the upper surface of the longitudinal and transverse die head units, the hydraulic cylinder stops. The pneumatic cylinder in the hopper assembly starts to move the bottom plate of the hopper, opening the lower end of the hopper. The vibrating motor on the hopper vibrates and discharges the material. After the material is discharged, the pneumatic cylinder moves the bottom plate of the hopper to close the lower end of the hopper. The hydraulic cylinder in the hopper assembly lowers the bottom plate of the hopper. The bottom plate of the hopper pre-presses and fixes the material in the groove formed by the lower die and the die head assembly. After pre-pressing, the hydraulic cylinder raises the hopper assembly, separating the bottom plate of the hopper from the pre-pressed material, and the material distribution is completed.

[0019] 4) Extrusion molding

[0020] In the press assembly, the hydraulic cylinder moves through the middle beam to lower the upper die in the mold assembly. The lower die compresses the material in the groove formed by the lower die and the die head assembly. After holding the pressure for a period of time, the hydraulic cylinder drives the upper die to move upward, and the material is extruded and formed.

[0021] 5) Automatic mold ejection and palletizing

[0022] The hydraulic cylinder in the die head pressure reduction assembly presses down the longitudinal die heads at both ends of the lower die. The reduction motor in the first drive robotic arm component drives the die pusher plate forward, pushing the pallet on the lower die and the formed tube on the pallet plate out of the lower die and into the height adaptation frame in the first height adaptation lifting seat component. The reduction motor in the third drive robotic arm component starts, driving the die pusher plate to push the pallet plate and the formed tube on the pallet plate out of the height adaptation frame and into the empty layer of the tube storage rack. The piston rod of the cylinder below the upper part of the robotic arm drives the die pusher plate to continue pushing the pallet plate and the formed tube on the pallet plate into the empty layer of the tube storage rack. The die removal and stacking action is completed.

[0023] Compared with existing technologies, this invention has the following significant advantages: the pipe wrapping production is automated, involving material feeding, extrusion molding, and automatic demolding and stacking. The extruded pipes are dense, strong, uniform in wall thickness, and of good quality. The products dry and cure quickly. Automated production reduces the labor intensity of workers, improves the production efficiency of pipe wrapping, saves manpower, and reduces production costs. After the products are demolded, they are stored on a three-dimensional shelf, saving space. The molds can be combined in units to accommodate the production of pipe wrapping of various specifications, making them highly versatile. The raw materials are not limited to cement and sand; industrial waste, slag, and mineral slag can all be added as raw materials, making pipe wrapping production energy-saving and environmentally friendly. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 This is a schematic diagram of the fabric component structure of the present invention.

[0026] Figure 3 This is a side view of the internal structure of the fabric assembly of the present invention.

[0027] Figure 4 This is a schematic diagram of the press assembly structure of the present invention.

[0028] Figure 5 This is a schematic diagram of the mold assembly structure of the present invention.

[0029] Figure 6 This is an exploded view of the longitudinal module unit and the transverse module unit of the present invention.

[0030] Figure 7 This is a schematic diagram of the mold conveying assembly structure of the present invention.

[0031] Figure 8 This is a structural schematic diagram of a drive robotic arm component of the present invention.

[0032] Figure 9 This is a schematic diagram of the second component of the drive robotic arm according to the present invention.

[0033] Figure 10 This is a schematic diagram of the drive fin assembly structure of the present invention.

[0034] Figure 11 This is a schematic diagram of a component of the mold ferry trolley of the present invention.

[0035] Figure 12 This is a schematic diagram of the ejection and palletizing assembly structure of the present invention.

[0036] Figure 13 This is a schematic diagram of the structure of the shielding and pushing component of the present invention.

[0037] Figure 14 This is a schematic diagram of the automatic pallet loading assembly of the present invention.

[0038] Figure 15 This is a schematic diagram of the pallet pushing component structure of the present invention.

[0039] Figure 16 This is a schematic diagram of an L-shaped tubing structure.

[0040] The attached figures are labeled as follows: 1. Fabric assembly; 2. Press assembly; 3. Mold assembly; 4. Mold conveyor assembly; 5. Demolding and palletizing assembly; 6. Automatic pallet loading assembly; 7. Longitudinal conveyor assembly; 8. Transverse conveyor assembly; 9. Circular track; 10. Unloading assembly; 11. Waste material collection assembly; 12. Hopper frame assembly; 13. Hopper assembly; 14. Hopper frame; 15. Hydraulic cylinder base plate; 16. Hydraulic cylinder; 17. Linear guide rail; 18. Unloading hopper; 19. Hopper bottom plate; 20. Hopper width adjustment assembly; 21. Cylinder; 22. Linear guide rail base plate; 23. Linear guide rail slider; 24. Vibration motor; 25. Hopper internal side plate; 26. Cylindrical slider; 27. Optical shaft; 28. Lead screw; 29. ​​Lead screw nut; 30. Bearing with seat; 31. Bevel gear; 32. Gear motor; 33. Waste material collection. Frame 33, Waste Hopper 34, Waste Hopper Base Plate 35, Waste Hopper Cantilever 36, Hinge 37, Locking Hook 38, Upper Beam 39, Lower Beam 40, Middle Beam 41, Column 42, Working Platform 43, Upper Mold Assembly 44, Lower Mold Assembly 45, Support Plate 46, Trolley 47, Upper Mold 48, Upper Mold Frame 49, Lower Mold 50, Mold Head Assembly 51, Cylindrical Slider Seat Plate 52, Limiting Block Link 53, Longitudinal Mold Head Limiting Block 54, Linear Guide Rail Slider Seat Plate 55, Transverse Mold Head Limiting Block 56, Limiting Bolt 57, Longitudinal Module 58, Transverse Module 59, Longitudinal Module Unit 60, Bolt 61, Transverse Module Unit 62, Longitudinal Mold Head Assembly 63, Transverse Mold Head Assembly 64, Longitudinal Mold Head 65, Plug 66, Slide Rod Seat Plate 67, Compression Spring 68 69. Horizontal mold head unit; 70. Bolt limiting plate; 71. Trolley frame; 72. Directional wheel; 73. Track assembly; 74. Mold drive assembly; 75. Left longitudinal track; 76. Right longitudinal track; 77. Front transverse track; 78. Rear transverse track; 79. Fixed longitudinal track; 80. Liftable longitudinal track assembly; 81. Track bracket; 82. Track bracket base; 83. Drive robotic arm component one; 84. Drive robotic arm component two; 85. Drive wing assembly; 86. Mold transfer trolley component one; 87. Mold transfer trolley component two; 88. Robotic arm bracket; 89. Robotic arm; 90. Gear; 91. Rack; 92. Rack base plate; 93. Motor base plate; 94. Cylinder double-ear base; 95. Cylinder connector; 96. Mold push plate; 97. Cylinder support plate; 98. Cylinder connecting plate. 98. Deflector plate; 99. Rotating shaft; 100. Limiting block; 101. Trolley frame; 102. Stop block; 103. Directional wheel; 104. Limiting block push-pull plate; 105. Mold positioning plate; 106. Sprocket; 107. Chain; 108. Mold head pressure reduction assembly; 109. Tube pushing assembly; 110. Tube storage rack; 111. Mold head pressure reduction frame; 112. Flange; 113. Tube pushing frame component; 114. Height-adaptive lifting seat component one; 115. Drive robotic arm component three; 116. Tube pushing frame; 117. Height-adaptive seat frame; 118. Upper part of robotic arm; 119. Lower part of robotic arm; 120. Pallet pushing assembly; 121. Height-adaptive lifting seat component two; 122. Pallet pushing robotic arm component; 123. Pallet pusher; 124. Pusher cantilever; 125.Guarantee 126. Detailed Implementation

[0041] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0042] like Figure 1 As shown: The production line includes a fabric assembly 1, a press assembly 2, a mold assembly 3, a mold conveying assembly 4, a mold ejection and palletizing assembly 5, and an automatic pallet loading assembly 6; the mold conveying assembly 4 includes a longitudinal conveying assembly 7 and a transverse conveying assembly 8 forming a circular loop track 9, the mold assembly 3 is placed on the circular loop track 9 and can move along the circular loop track 9, the fabric assembly 1 and the press assembly 2 are arranged above the circular loop track 9 in the longitudinal conveying assembly 7, and the mold ejection and palletizing assembly 5 is arranged on one side of the transverse conveying assembly 8.

[0043] like Figure 2 , Figure 3As shown, the fabric assembly 1 includes a feeding assembly 10 and a waste material collection assembly 11. The waste material collection assembly 11 is located on one side of the feeding assembly 10. The feeding assembly 10 includes a hopper frame assembly 12 and a hopper assembly 13. The hopper frame assembly 12 includes a hopper frame 14, a hydraulic cylinder seat plate 15, hydraulic cylinders 16, and a linear guide rail 17. The hydraulic cylinder seat plate 15 is fixed to the upper side of the hopper frame 14. There are four sets of hydraulic cylinders 16, which are respectively fixed on the hydraulic cylinder seat plate 15. The piston rod end of the hydraulic cylinder 16 is fixedly connected to the hopper assembly 13. The linear guide rail 17 is fixed to the inner side of the hopper frame 14. The hopper assembly 13 includes a feeding hopper 18, a feeding hopper bottom plate 19, and a hopper width adjustment assembly 20. The system includes a cylinder 21, a linear guide rail 17, a linear guide rail base plate 22, a linear guide rail slider 23, and a vibration motor 24. The hopper 18 has openings at both ends, with the lower opening having a "∟" shaped cross-section. The hopper bottom plate 19 also has a "∟" shaped cross-section and fits against the lower opening of the hopper 18. The hopper bottom plate 19 can slide relative to the hopper 18 to open and close the lower end of the hopper 18. Linear guide rail sliders 23 are fixed on both sides of the hopper 18, and these sliders slide against the linear guide rail 17 inside the hopper frame 14. Linear guide rail base plates 22 are also fixed to the lower ends of both sides of the hopper 18, extending out of the hopper 18. The linear guide rail base plates 22 are fixed with... The hopper 18 has linear guide rails 17, and linear guide rail sliders 23 are fixed on both sides of the bottom plate 19. The linear guide rail sliders 23 on both sides of the bottom plate 19 slide with the linear guide rails 17 at the lower ends of both sides of the hopper 18. The cylinders 21 are fixed on both sides of the hopper 18, and the piston rod end of the cylinders 21 is fixed to the bottom plate 19 of the hopper. Vibration motors 24 are also fixed at both ends of the hopper 18. The hopper width adjustment assembly 20 includes an internal side plate 25, a cylindrical slider 26, an optical axis 27, a lead screw 28, a lead screw nut 29, a bearing with a seat 30, a bevel gear 31, and a reduction motor 32. The length of the internal side plate 25 matches the length of the inner cavity of the hopper 18 and is in contact with and fits the inner side of the hopper. The cylindrical slider 26 is fixed on both sides of the hopper 18 and can move up and down. One end of the optical shaft 27 is fixedly connected to the inner side plate 25 of the hopper. The optical shaft 27 passes through the cylindrical slider 26 and slides with the cylindrical slider 26. The lead screw 28 passes through the lead screw nut 29 and is screwed with the lead screw nut 29. One end of the lead screw 28 is fixedly connected to the inner side plate 25 of the hopper. The lead screw nut 29 is fixed in the inner ring of the bearing 30 with a seat. The bearing 30 is fixed on both sides of the hopper 18. One end of the lead screw nut 29 is fixed with a bevel gear 31. The two sides of the hopper 18 are fixed with a reduction motor 32. The output shaft end of the reduction motor 32 is fixed with a bevel gear 31. The bevel gear 31 at the output shaft end of the reduction motor 32 meshes with the bevel gear 31 at the end of the lead screw nut 29 for transmission.

[0044] like Figure 2As shown, the waste material collection assembly 11 includes a waste material collection frame 33, a waste material hopper 34, a waste material hopper bottom plate 35, a waste material hopper cantilever 36, a cylinder 21, a linear guide rail 17, a linear guide rail slider 23, a hinge 37, and a locking hook 38. The waste material collection frame 33 is located beside the hopper frame 14. The waste material hopper 34 has openings at the top and bottom. The bottom plate of the waste material hopper 34 is hinged to the waste material hopper 34 via the hinge 37. The locking hook 38 is located at the lower end of the waste material hopper 34, and the bottom plate of the waste material hopper 34 closes the lower opening of the waste material hopper 34 via the locking hook 38. 34 is fixed to one end of the cantilever 36 of the waste hopper. A linear guide slider 23 is fixed on the cantilever 36 of the waste hopper. A linear guide 17 is fixed on the waste material collection frame 33. The linear guide slider 23 on the cantilever 36 of the waste hopper and the linear guide 17 on the waste material collection frame 33 are slidably engaged. The cylinder 21 is fixed on the waste material collection frame 33. The piston rod end of the cylinder 21 is fixedly connected to the waste hopper 34. The cylinder 21 extends and retracts, causing the waste hopper 34 to extend and retract. When the waste hopper 34 extends, it is located below one end of the feed hopper 18. When the waste hopper 34 retracts, it is located inside the waste material collection frame 33.

[0045] like Figure 4 As shown, the press assembly 2 includes a hydraulic cylinder 16, an upper beam 39, a lower beam 40, a middle beam 41, a column 42, and a working platform 43. The upper beam 39 and the lower beam 40 are fixedly connected by four columns 42. The hydraulic cylinder 16 is one or more sets, and the hydraulic cylinder 16 is fixed to the upper end of the upper beam 39. A through hole is provided in the middle of the upper beam 39, and the piston rod of the hydraulic cylinder 16 passes through the through hole in the center of the upper beam 39. The middle beam 41 is located between the upper beam 39 and the lower beam 40. The four corners of the middle beam 41 are provided with through holes, and the column 42 passes through the through holes at the corners of the middle beam 41 and slides in cooperation with the through holes. The middle beam 41 can move up and down under the drive of the hydraulic cylinder 16. The working platform 43 is fixed on the upper side of the lower beam 40.

[0046] like Figure 5 , Figure 6As shown, the mold assembly 3 includes an upper mold assembly 44, a lower mold assembly 45, a support plate 46, and a trolley 47. The upper mold assembly 44 is a single unit installed in the production line. The upper end of the upper mold assembly 44 is fixedly connected to the lower end of the central beam 41 in the press assembly 2. The upper mold assembly 44 includes an upper mold 48 and an upper mold frame 49. The lower end of the upper mold 48 has a "∟" shaped cross-section. The upper mold frame 49 is located inside the upper mold 48. Multiple lower mold assemblies 45 are installed in the production line. The lower mold assembly 45 includes a lower mold 50, a mold head assembly 51, a linear guide slider 23, a linear guide 17, and a linear guide base plate 22. The lower mold 50 includes a cylindrical slider base plate 52, a cylindrical slider 26, a limiting block connecting rod 53, a longitudinal mold head limiting block 54, a linear guide slider base plate 55, a transverse mold head limiting block 56, and a limiting bolt 57. The lower mold 50 includes a longitudinal module 58 and a transverse module 59. The longitudinal module 58 is composed of multiple independent longitudinal module units 60 arranged longitudinally and tightly, connected and fixed by bolts 61. The transverse module 59 is composed of multiple independent transverse module units 62 arranged transversely and tightly, connected by bolts 61. The transverse module units 62 on both sides... Linear guide rails 17 are fixed to the outer side of module 2. After the transverse module 59 is placed on top of the longitudinal module 58 and assembled, the upper cross section is shaped like a "∟". The cylindrical slider seat plate 52 is fixed to the outer sides of both ends of the lower mold 50. A cylindrical slider 26 is installed on the cylindrical slider seat plate 52. Limit bolts 57 are provided on the cylindrical slider seat plate 52. Linear guide rail seat plates 22 are provided inside the longitudinal module units 60 at both ends. Linear guide rails 17 are provided on the linear guide rail seat plates 22. Multiple windows are provided at the lower outer side of the longitudinal module units 60 at both ends. Limit block connecting rods 53 are also provided inside the longitudinal module units 60 at both ends. Multiple longitudinal mold head limiting blocks 54 are fixedly connected to the limiting block connecting rod 53. A linear guide slider seat plate 55 is fixed to the limiting block connecting rod 53. A linear guide slider 23 is fixed to the linear guide slider seat plate 55. The linear guide slider 23 slides with the linear guide 17 inside the longitudinal module unit 60. The longitudinal mold head limiting blocks 54 can slide through the window at the lower outer end of the longitudinal module unit 60. Transverse mold head limiting blocks 56 are fixed to the upper ends of both sides of the longitudinal module unit 60. Limiting bolts 57 are provided on the transverse mold head limiting blocks 56. Linear guide rails 17 are also fixed to the outer side of the end face of the longitudinal module unit 60 at both ends.The mold head assembly 51 includes a longitudinal mold head assembly 63 and a transverse mold head assembly 64. The longitudinal mold head assembly 63 includes a longitudinal mold head 65, a plug 66, a slide bar seat plate 67, an optical axis 27, a compression spring 68, a linear guide rail slider seat plate 55, and a linear guide rail slider 23. The upper section of the longitudinal mold head 65 is shaped like a "∟". A guide groove is opened at the bottom corner of the longitudinal mold head 65, and the plug 66 is placed in the guide groove. The plug 66 can be removed along the direction of the guide groove. Slide bar seat plates 67 are fixed on both sides of the longitudinal mold head 65. An optical axis 27 is fixed at the lower end of the slide bar seat plate 67. The optical axis 27 is vertically arranged on both sides of the longitudinal mold head 65. A compression spring 68 is sleeved on the optical axis 27. The upper end of the compression spring 68 is fixed to the slide bar seat plate 67, and the lower end of the compression spring 68 abuts against the cylindrical slider seat plate 52. Linear guide rail slider seat plates 55 are also fixed on both sides of the longitudinal mold head 65. A linear guide slider 23 is fixed on the slider base plate 55. The linear guide slider 23 on the linear guide slider base plate 55 slides in cooperation with the linear guide rails 17 on the outer side of the end faces of the longitudinal module units 60 at both ends. The transverse mold head assembly 64 includes a transverse mold head unit 69, an optical axis 27, a compression spring 68, a linear guide slider base plate 55, a linear guide slider 23, and a bolt limiting plate 70. The transverse mold head units 69 are arranged longitudinally in close proximity and connected by bolts 61. An optical axis 27 is fixed on the transverse mold head units 69 at both ends, and a compression spring 68 is sleeved on the optical axis 27. A linear guide slider base plate 55 is fixed on the transverse mold head units 69 at both ends, and a linear guide slider 23 is fixed on the linear guide slider base plate 55. The linear guide slider 23 on the linear guide slider base plate 55 is in cooperation with the outer linear guide rails 17 on the outer side of the transverse module units 62 on both sides. The sliding fit is provided, and bolt limiting plates 70 are fixed on the transverse die head units 69 at both ends. The die head assembly 51 can move up and down relative to the lower die 50. The compression spring 68 in the die head assembly 51 causes the upper end face of the die head assembly 51 to protrude from the upper end face of the lower die assembly 45. The die head assembly 51 and the upper end of the lower die 50 form a groove with a "∟" shaped cross section. The support plate 46 is placed on the upper side of the lower die 50. The support plate 46 is "∟" shaped and matches the groove at the upper end of the lower die 50. The support plate 46 is placed in the groove at the upper end of the lower die 50 before the tube 126 is produced. After the tube 126 is produced, it is moved out of the lower die assembly 45 along with the formed tube 126. The trolley 47 is placed on the lower side of the lower die 50. The trolley 47 includes a trolley frame 71, directional wheels 72, and trolley positioning rods. Four directional wheels 72 are fixed at the lower end of the trolley frame 71, and trolley positioning rods are fixed on both sides of the trolley frame 71.

[0047] like Figures 7 to 11As shown, the mold conveying assembly 4 includes a track assembly 73 and a mold driving assembly 74. The track assembly 73 is an "U"-shaped annular circulating track 9. The track assembly 73 includes a left longitudinal track 75, a right longitudinal track 76, a front transverse track 77, and a rear transverse track 78. The left longitudinal track 75 is a fixed longitudinal track 79. The right longitudinal track 76 is composed of a fixed longitudinal track 79 and a liftable longitudinal track assembly 80. The fixed longitudinal track 79 includes a track support 81 and an annular circulating track 9. The liftable longitudinal track assembly 80 includes a track support 81, an annular circulating track 9, a track support base 82, and a hydraulic cylinder 16. The front transverse track 77 and the rear transverse track 78 each include a track support 81 and a rear transverse track 78. 1. A circular loop track 9, wherein the mold driving assembly 74 includes a first driving robotic arm component 83, a second driving robotic arm component 84, a driving wing assembly 85, a first mold transfer trolley component 86, and a second mold transfer trolley component 87. The first driving robotic arm component 83 is located above the left longitudinal track 75, the second driving robotic arm component 84 is positioned above the junction of the front transverse track 77 and the right longitudinal track 76, the driving wing assembly 85 is positioned on both sides of the right longitudinal track 76, the first mold transfer trolley component 86 is positioned above the front transverse track 77, and the second mold transfer trolley component 87 is positioned above the rear transverse track 78. The first driving robotic arm component 83 includes a robotic arm support 88, a robotic arm 89, and a linear guide rail 17. The mechanical arm support 88 is located above the left longitudinal track 75 and extends along the left longitudinal track 75 to both ends, exceeding the front transverse track 77 and the rear transverse track 78. The mechanical arm 89 is T-shaped. A linear guide rail 17 is fixed on the upper side of the mechanical arm support 88. A rack base 92 is fixed on both sides of the mechanical arm support 88, and a rack 91 is fixed on the rack base 92. Linear guide rail sliders 23 are installed on the lower ends of both sides of the mechanical arm 89. The linear guide rail sliders 23 on the lower ends of both sides of the mechanical arm 89 are connected to the mechanical arm support 88. The upper linear guide rail 17 of the robotic arm 89 is slidably engaged. Motor base plates 93 are installed on both sides of the robotic arm 89. A reduction motor 32 is installed on the motor base plate 93. A gear 90 is installed on the output shaft end of the reduction motor 32. The gear 90 on the output shaft end of the reduction motor 32 meshes with the racks 91 on both sides of the robotic arm bracket 88 for transmission. A linear guide rail base plate 22 is fixed at the lower end of the robotic arm 89. A linear guide rail 17 is fixed on the linear guide rail base plate 22. A mold push plate 96 is also provided at the lower end of the robotic arm 89. An optical shaft 27 is fixed on the mold push plate 96. A linear guide rail slider 23 is fixed on the back of the mold push plate 96. The linear guide rail slider 23 on the back of the mold push plate 96 is slidably engaged with the linear guide rail 17 on the linear guide rail base plate 22. A cylinder double-ear base 94 is also fixed on the linear guide rail base plate 22.A cylinder 21 is also provided at the lower end of the robotic arm 89. The cylinder 21 is rotatably connected to the cylinder double-ear base 94. A cylinder connector 95 is installed at the piston rod end of the cylinder 21. The cylinder connector 95 is rotatably connected to the optical shaft 27 on the mold push plate 96. The driving robotic arm component 84 includes a robotic arm bracket 88, a linear guide rail 17, a linear guide rail slider 23, a robotic arm 89, a cylinder 21, a cylinder support plate 97, a cylinder connecting plate 98, and a mold push plate 96. The robotic arm bracket 88 is located above the intersection of the end of the front transverse track 77 and the right longitudinal track 76. The robotic arm 89 is T-shaped. A linear guide rail 17 is fixed on the upper side of the robotic arm bracket 88. Linear guide rail sliders 23 are installed at the lower ends of both sides of the robotic arm 89. The lower linear guide sliders 23 on both sides slide in engagement with the upper linear guide rail 17 of the drive robotic arm bracket 88. Cylinder support plates 97 are fixed on both sides of the robotic arm bracket 88, and cylinders 21 are fixed on the cylinder support plates 97. Cylinder connecting plates 98 are fixed on both sides of the robotic arm 89. The piston rods of the cylinders 21 on both sides of the robotic arm bracket 88 are fixedly connected to the cylinder connecting plates 98 on both sides of the robotic arm 89. A linear guide rail is also fixed at the lower middle end of the robotic arm 89. A mold push plate 96 is also provided at the lower end of the robotic arm 89. A linear guide slider 23 is fixed to the back of the mold push plate 96. The linear guide slider 23 on the back of the mold push plate 96 slides in engagement with the lower linear guide rail 17 of the robotic arm 89. Cylinders 21 are provided on the robotic arm 89, and the tail end of the cylinder 21 is connected to the robotic arm. The upper end of cylinder 21 is hinged to the upper end, and the piston rod end of cylinder 21 is hinged to the mold push plate 96. The drive fin assembly 85 includes a linear guide rail 17, a rack seat plate 92, a rack 91, a linear guide rail slider 23, a gear 90, a reduction motor 32, a motor seat plate 93, a fin plate 99, a rotating shaft 100, and a limiting block 101. The linear guide rail 17 and the rack seat plate 92 are fixed on both sides of the track bracket 81 in the right longitudinal track 76. The rack 91 is fixed on the rack seat plate 92. The motor seat plate 93 is also provided on both sides of the track bracket 81 in the right longitudinal track 76. The linear guide rail slider 23 is fixed on the back of the motor seat plate 93. The linear guide rail slider 23 on the back of the motor seat plate 93 slides with the linear guide rail 17 on both sides of the track bracket 81. A reduction motor 32 is also fixed on the motor base plate 93. A gear 90 is fixed to the output shaft end of the reduction motor 32. The gear 90 at the output shaft end of the reduction motor 32 meshes with the racks 91 on both sides of the track bracket 81 for transmission. A rotating shaft 100 is fixed to the side of the motor base plate 93. A deflector plate 99 is provided on the rotating shaft 100. The deflector plate 99 is rotatably connected to the rotating shaft 100. The center of gravity of the deflector plate 99 is offset relative to the rotating shaft 100. When the robotic arm 89 drives the mold to move forward along the right longitudinal track 76, the deflector plate 99 rotates from a vertical state to a horizontal state. After the mold passes the deflector plate 99, the deflector plate 99 rotates from a horizontal state to a vertical state due to the offset of its center of gravity relative to the rotating shaft 100. A limit block 101 is also fixed to the side of the motor base plate 93.The limiting block 101 abuts against the deflector plate 99; the mold transfer trolley component 86 is mounted on the front transverse track 77 and can move along the direction of the front transverse track 77. The mold transfer trolley component 86 includes a trolley frame 102, an annular circulating track 9, a stop block 103, a directional wheel 104, a linear guide rail base plate 22, a linear guide rail 17, a linear guide rail slider 23, a cylinder support plate 97, a cylinder 21, a limiting block push-pull plate 105, a mold positioning plate 106, a rotating shaft 100, a bearing with a seat 30, a sprocket 107, a chain 108, and a reduction motor 32. The annular circulating track 9 is fixed on the trolley frame 102, and the annular circulating track 9 on the trolley frame 102 is arranged in the same direction as the left longitudinal track 75 / right longitudinal track 76. Perpendicular to the moving direction of the trolley frame 102, a stop block 103 is provided at one end of the annular circular track 9 on the trolley frame 102. The stop block 103 is fixedly connected to one end of the annular circular track 9. A directional wheel 104 is fixed to the lower side of the trolley frame 102. Linear guide rail base plates 22 are fixed at both ends of the trolley frame 102. Linear guide rails 17 are fixed on the linear guide rail base plates 22. Cylinder support plates 97 are provided at both ends of the trolley frame 102. Linear guide rail sliders 23 are fixed on the back of the cylinder support plates 97. The linear guide rail sliders 23 on the back of the cylinder support plates 97 slide in cooperation with the linear guide rails 17 at both ends of the trolley frame 102. A cylinder 21 is provided on the cylinder support plate 97. The tail end of the cylinder 21 is hinged to the cylinder support plate 97. A linear guide rail is fixed on the cylinder support plate 97. 17. A limit block push-pull plate 105 is fixed to the piston rod end of cylinder 21. A linear guide slider 23 is fixed below the limit block push-pull plate 105. The linear guide slider 23 below the limit block push-pull plate 105 slides with the linear guide 17 on the cylinder support plate 97. Cylinder 21 is set below the cylinder support plate 97. The tail end of cylinder 21 is hinged to the trolley frame 102. The piston rod end of cylinder 21 is fixed to the cylinder support plate 97. Cylinder 21 is set at the middle position of both ends of the trolley frame 102. The tail end of cylinder 21 is hinged to the trolley frame 102. A mold positioning plate 106 is fixed to the piston rod end of cylinder 21. A linear guide slider 23 is fixed to the back of the mold positioning plate 106. The linear guide slider 23 on the back of the mold positioning plate 106 slides with the linear guide 17 on both ends of the trolley frame 102. The linear guide rail 17 is slidably fitted; the front transverse rail 77 has rotating shafts 100 at both ends, and the rail bracket 81 of the front transverse rail 77 has bearings 30 fixed at both ends. The rotating shafts 100 are fixed in the bearings 30 at both ends, and sprockets 107 are mounted on the rotating shafts 100. A chain 108 is arranged along the front transverse rail 77, and the two ends of the chain 108 are fixedly connected to the front and rear ends of the mold transfer trolley, respectively. The chain 108 is closed by connecting the beginning and end with the mold transfer trolley. The closed chain 108 meshes with the sprockets 107 on the rotating shafts 100 at both ends of the front transverse rail 77. Sprockets 107 are also fixed on the rotating shafts 100. The geared motor 32 is fixed on the motor base plate 93, which is fixedly connected to the rail bracket 81. The output shaft of the geared motor 32 is equipped with sprockets 107.The sprocket 107 at the output shaft of the geared motor 32 is engaged with the sprocket 107 on the rotating shaft 100 via a chain 108. The mold transfer trolley component 2 87 is mounted on the rear transverse track 78 and can move along the rear transverse track 78. The mold transfer trolley component 2 87 includes a trolley frame 102, a circular circulation track 9, a stop block 103, a directional wheel 104, a linear guide rail 17, a linear guide rail slider 23, a cylinder 21, a mold positioning plate 106, a rotating shaft 100, a bearing 30 with a seat, a sprocket 107, a chain 108, and a geared motor 32. The high-speed motor 32, the trolley frame 102 is fixed with an annular circular track 9, the annular circular track 9 on the trolley frame 102 is arranged in the same direction as the left longitudinal track 75 / right longitudinal track 76, and is perpendicular to the moving direction of the trolley frame 102. A stop block 103 is provided at one end of the annular circular track 9 on the trolley frame 102, and the stop block 103 is fixedly connected to one end of the annular circular track 9. The directional wheel 104 is fixed to the lower side of the trolley frame 102. A cylinder 21 is provided at the middle position of both ends of the trolley frame 102, and the tail end of the cylinder 21 is hinged to the trolley frame 102. Next, a mold positioning plate 106 is fixed to the piston rod end of cylinder 21, and a linear guide slider 23 is fixed to the back of the mold positioning plate 106. The linear guide slider 23 on the back of the mold positioning plate 106 slides in cooperation with the linear guides 17 at both ends of the trolley frame 102. A rotating shaft 100 is provided at both ends of the front transverse track 77, and a bearing 30 with a seat is fixed at both ends of the track bracket 81 of the front transverse track 77. The rotating shaft 100 is fixed at both ends in the bearing 30 with a seat, and a sprocket 107 is installed on the rotating shaft 100. A chain 108 is provided along the direction of the front transverse track 77. The chain 108 is fixedly connected at both ends to the front and rear ends of the mold transfer trolley, respectively. The chain 108 is closed by connecting its ends to the mold transfer trolley. The closed chain 108 meshes with sprockets 107 on the rotating shafts 100 at both ends of the rear transverse track 78. Sprockets 107 are also fixed on the rotating shafts 100. The reduction motor 32 is fixed on the motor base plate 93, which is fixedly connected to the track bracket 81. A sprocket 107 is installed on the output shaft end of the reduction motor 32. The sprocket 107 on the output shaft end of the reduction motor 32 meshes with the sprocket 107 on the rotating shaft 100 via the chain 108.

[0048] like Figure 12 , Figure 13As shown, the die-out stacking assembly 5 includes a die head pressure-reducing assembly 109, a tube pushing assembly 110, and a tube storage rack 111. The die head pressure-reducing assembly 109, the tube pushing assembly 110, and the tube storage rack 111 are arranged longitudinally adjacent to each other. There are four sets of die head pressure-reducing assemblies 109. Each die head pressure-reducing assembly 109 includes a die head pressure-reducing frame 112, a hydraulic cylinder seat plate 15, a hydraulic cylinder 16, and a flange 113. The hydraulic cylinder seat plate 15 is fixed to the die head pressure-reducing frame 112. A hydraulic cylinder 16 is fixed on the cylinder seat plate 15, and a flange 113 is fixed to the piston rod end of the hydraulic cylinder 16; the tube pushing assembly 110 includes a tube pushing frame component 114, a height-adaptive lifting seat component 115, and a drive robotic arm component 116. The height-adaptive lifting seat component 115 is disposed inside the tube pushing frame component 114, and the drive robotic arm component 116 is located above the height-adaptive lifting seat component 115. 4 includes a support and pushing frame 117, a rack 91, and a linear guide rail 17. The rack 91 and the linear guide rail 17 are vertically fixed on the support and pushing frame 117. The height-adapting lifting seat component 115 includes a height-adapting seat frame 118, a linear guide rail 17, a linear guide rail slider 23, a rack 91, a motor base plate 93, a reduction motor 32, and a gear 90. The upper end of the height-adapting seat frame 118 is shaped like a "∟", and linear guide rails are fixed to the upper ends of both sides of the height-adapting seat frame 118. 17 and rack 91, a motor base plate 93 is fixed on the height-adaptive frame 118, a geared motor 32 is fixed on the motor base plate 93, a gear 90 is installed on the output shaft end of the geared motor 32, the gear 90 on the output shaft end of the geared motor 32 meshes with the rack 91 on the tube push frame 117 for transmission, linear guide sliders 23 are also fixed on both sides of the height-adaptive frame 118, and the linear guide sliders 23 on both sides of the height-adaptive frame 118 slide with the linear guide 17 on the tube push frame 117;The aforementioned drive robotic arm component 116 includes an upper robotic arm 119, a lower robotic arm 120, a linear guide rail 17, a linear guide rail slider 23, a motor base plate 93, a reduction motor 32, a gear 90, a linear guide rail base plate 22, a cylinder 21, an optical axis 27, a mold push plate 96, and a cylinder connector 95. The upper robotic arm 119 is positioned above the lower robotic arm 120, and the lower robotic arm 120 can move longitudinally along the upper robotic arm 119. The upper robotic arm 119 and the lower robotic arm 120 are combined to form a T-shape. Linear guide rail sliders 23 are fixed to the lower sides of the upper robotic arm 119. The lower linear guide sliders 23 on both sides of the upper part 119 of the robotic arm slide in cooperation with the upper linear guides 17 on both sides of the height-adaptive frame 118. Motor base plates 93 are fixed to the lower sides of the upper part 119 of the robotic arm, and a reduction motor 32 is fixed on the motor base plate 93. A gear 90 is fixed to the output shaft end of the reduction motor 32, and the gear 90 at the output shaft end of the reduction motor 32 meshes with the racks 91 on both sides of the height-adaptive frame 118 for transmission. Linear guides 17 are also fixed below the upper part 119 of the robotic arm. The upper end of the lower part 120 of the robotic arm is fixed with linear guide sliders 23, and the upper end of the lower part 120 of the robotic arm has linear guide sliders 23. 23 slides in cooperation with the linear guide rail 17 below the upper part 119 of the robotic arm. A cylinder 21 is also installed below the upper part 119 of the robotic arm. The tail end of the cylinder 21 is hinged to the upper part 119 of the robotic arm, and the piston rod end of the cylinder 21 is fixedly connected to the lower part 120 of the robotic arm. A linear guide rail base plate 22 is fixed to the side of the lower part 120 of the robotic arm, and a linear guide rail 17 is fixed on the linear guide rail base plate 22. A mold push plate 96 is installed on the front side of the lower part 120 of the robotic arm, and a linear guide rail slider 23 is fixed to the back of the mold push plate 96. The linear guide rail slider 23 on the back of the mold push plate 96 is connected to the linear guide rail base plate 27 on the side of the lower part 120 of the robotic arm. The linear guide rail 17 on the 2nd is slidably engaged. A cylinder 21 is provided on the front side of the linear guide rail base plate 22. The tail end of the cylinder 21 is hinged to the side of the linear guide rail base plate 22 on the lower part 120 of the robotic arm. A cylinder connector 95 is installed on the piston rod end of the cylinder 21. An optical axis 27 is fixed on the mold push plate 96. The cylinder connector 95 is rotatably connected to the optical axis 27 on the mold push plate 96. The tube-wrapping storage rack 111 is a multi-layer structure. The tube-wrapping storage rack 111 includes a storage frame and storage layer supports. The storage layer supports are arranged in multiple layers evenly distributed vertically. The storage layer supports are fixed on the storage frame and are shaped like a "∟".

[0049] like Figure 14 , Figure 15As shown, the automatic pallet loading assembly 6 includes a die head pressure reduction assembly 109, a tube pushing assembly 110, a tube storage rack 111, and a pallet pushing assembly 121. These components are arranged longitudinally adjacent to each other. There are two sets of die head pressure reduction assemblies 109, each including a die head pressure reduction frame 112, a hydraulic cylinder seat plate 15, a hydraulic cylinder 16, and a flange 113. 5 is fixed on the die head pressure reduction frame 112, and a hydraulic cylinder 16 is fixed on the hydraulic cylinder seat plate 15. A flange 113 is fixed to the piston rod end of the hydraulic cylinder 16. The tube pushing assembly 110 includes a tube pushing frame component 114, a height-adaptive lifting seat component 115, and a drive robotic arm component 116. The height-adaptive lifting seat component 115 is disposed inside the tube pushing frame component 114, and the drive robotic arm component 116 is located above the height-adaptive lifting seat component 115. The support and push frame component 114 includes a support and push frame 117, a rack 91, and a linear guide rail 17. The rack 91 and the linear guide rail 17 are vertically fixed on the support and push frame 117. The height-adaptive lifting seat component 115 includes a height-adaptive seat frame 118, a linear guide rail 17, a linear guide rail slider 23, a rack 91, a motor base plate 93, a reduction motor 32, and a gear 90. The upper end of the height-adaptive seat frame 118 is shaped like a "∟", and the upper ends of both sides of the height-adaptive seat frame 118 are respectively fixed. The device includes a linear guide rail 17 and a rack 91. A motor base plate 93 is fixed on the height-adaptive frame 118, and a geared motor 32 is fixed on the motor base plate 93. A gear 90 is installed on the output shaft end of the geared motor 32. The gear 90 on the output shaft end of the geared motor 32 meshes with the rack 91 on the tube push frame 117 for transmission. Linear guide rail sliders 23 are also fixed on both sides of the height-adaptive frame 118. The linear guide rail sliders 23 on both sides of the height-adaptive frame 118 slide with the linear guide rail 17 on the tube push frame 117.The aforementioned drive robotic arm component 116 includes an upper robotic arm 119, a lower robotic arm 120, a linear guide rail 17, a linear guide rail slider 23, a motor base plate 93, a reduction motor 32, a gear 90, a linear guide rail base plate 22, a cylinder 21, an optical axis 27, a mold push plate 96, and a cylinder connector 95. The upper robotic arm 119 is positioned above the lower robotic arm 120, and the lower robotic arm 120 can move longitudinally along the upper robotic arm 119. The upper robotic arm 119 and the lower robotic arm 120 are combined to form a T-shape. Linear guide sliders 23 are fixed to the lower sides of the upper part 119 of the robotic arm. The linear guide sliders 23 on the lower sides of the upper part 119 of the robotic arm slide in cooperation with the linear guides 17 on the upper sides of the height-adaptive frame 118. Motor base plates 93 are fixed to the lower sides of the upper part 119 of the robotic arm. A reduction motor 32 is fixed on the motor base plate 93. A gear 90 is fixed to the output shaft end of the reduction motor 32. The gear 90 on the output shaft end of the reduction motor 32 meshes with the racks 91 on the upper sides of the height-adaptive frame 118 for transmission. Linear guides 1 are also fixed to the lower side of the upper part 119 of the robotic arm. 7. A linear guide slider 23 is fixed to the upper end of the lower part 120 of the robotic arm. The linear guide slider 23 at the upper end of the lower part 120 of the robotic arm slides in cooperation with the linear guide 17 below the upper part 119 of the robotic arm. A cylinder 21 is also provided below the upper part 119 of the robotic arm. The tail end of the cylinder 21 is hinged to the upper part 119 of the robotic arm, and the piston rod end of the cylinder 21 is fixed to the lower part 120 of the robotic arm. A linear guide base plate 22 is fixed to the side of the lower part 120 of the robotic arm, and a linear guide 17 is fixed on the linear guide base plate 22. A linear guide 17 is provided on the front side of the lower part 120 of the robotic arm. A mold pusher plate 96 is provided, and a linear guide slider 23 is fixed on the back of the mold pusher plate 96. The linear guide slider 23 on the back of the mold pusher plate 96 is slidably engaged with the linear guide 17 on the linear guide seat plate 22 on the side of the lower part 120 of the robotic arm. A cylinder 21 is provided on the front side of the linear guide seat plate 22. The tail end of the cylinder 21 is hinged to the linear guide seat plate 22 on the side of the lower part 120 of the robotic arm. A cylinder connector 95 is installed on the piston rod end of the cylinder 21. An optical axis 27 is fixed on the mold pusher plate 96. The cylinder connector 95 is rotatably connected to the optical axis 27 on the mold pusher plate 96.The aforementioned storage rack 111 has a multi-layer structure, including a storage frame and storage layer supports. The storage layer supports are arranged in multiple layers evenly distributed vertically and are fixed to the storage frame. The storage layer supports are in the shape of a "∟". The pallet pushing assembly 121 includes a storage pushing frame component 114, a height-adaptive lifting seat component 122, and a pallet pushing robot component 123. The height-adaptive lifting seat component 122 is disposed within the storage pushing frame component 114 and can move vertically. The storage pushing frame component 114 includes a storage pushing frame 117, a rack 91, and a linear guide rail 17. The rack 91 and the linear guide rail 17 are vertically fixed to the storage pushing frame 117. The height-adaptive lifting seat component 122 includes... The system includes a height-adaptive mounting bracket 118, linear guide rails 17, linear guide rail sliders 23, a motor base plate 93, a reduction motor 32, a gear 90, a cylinder 21, and a cylinder support plate 97. The upper end of the height-adaptive mounting bracket 118 is shaped like a "∟". Linear guide rails 17 are fixed to the upper ends of both sides of the height-adaptive mounting bracket 118, and are arranged longitudinally along the height-adaptive mounting bracket 118. A motor base plate 93 is fixed to the height-adaptive mounting bracket 118, and a reduction motor 32 is fixed to the motor base plate 93. The output shaft end of the reduction motor 32 is equipped with... Gear 90, the gear 90 at the output shaft of the reduction motor 32 meshes with the rack 91 on the tube pushing frame 117 for transmission. Linear guide sliders 23 are also fixed on both sides of the height-adaptive base 118, and these sliders slide with the linear guides 17 on the tube pushing frame 117. A cylinder support plate 97 is also fixed on the height-adaptive base 118, and a cylinder 21 is mounted on the cylinder support plate 97, with the tail end of the cylinder 21 hinged to the cylinder support plate 97. The pallet pushing robot component 12 is also mentioned. 3 includes a pallet pusher 124, a pusher cantilever 125, and a linear guide slider 23. The pallet pusher 124 is shaped like a "∟". The front end of the pusher cantilever 125 is fixedly connected to the pallet pusher 124. A linear guide slider 23 is fixedly attached below the pusher cantilever 125. The linear guide slider 23 below the pusher cantilever 125 slides in engagement with the linear guides 17 on both sides of the upper end of the height-adaptive support frame 118. The piston rod end of the cylinder 21 on the cylinder support plate 97 is fixedly connected to the pallet pusher 124. Example

[0050] like Figure 16 As shown, the specifications of the tube 126 are: L-shaped tube 126 with a length of 670mm x 750mm on both sides, a height of 1450mm, and a thickness of 25mm.

[0051] like Figure 2 , Figure 5 , Figure 6As shown: Before production, select the longitudinal module unit 60 and arrange them longitudinally in close proximity. After the longitudinal module 58 is assembled, the length of the lower mold 50 is 1450mm. Select the transverse module units 62 on both sides and arrange them transversely in close proximity. After the transverse module 59 is assembled, the width of the lower mold 50 on both sides is 670mm x 750mm. The reduction motor 32 in the hopper width adjustment component 20 starts and drives the hopper built-in side plate 25 to move so that the width of the discharge port on both sides of the lower hopper 18 is 670mm x 750mm. Select the corresponding longitudinal mold head limit block 54 and transverse mold head limit block 56, and place the corresponding specification pallet 46 in the storage rack 111. During operation, the height adaptation lifting seat component 115 in the automatic pallet mounting component 6... The geared motor 32 starts and drives the height-adaptive support frame 118 to rise and fall. When the height-adaptive support frame 118 rises and falls to the same height as the corresponding layer of the storage rack 111 where the pallet 46 is placed, the geared motor 32 stops. In the height-adaptive lifting seat component 2 122 of the automatic pallet loading assembly 6, the geared motor 32 starts and drives the height-adaptive support frame 118 to rise and fall. When the height-adaptive support frame 118 rises and falls to the same height as the corresponding layer of the storage rack 111 where the pallet 46 is placed, the geared motor 32 stops. In the height-adaptive lifting seat component 2 122, the cylinder 21 starts and drives the pallet pusher 124 to move forward. The pallet pusher 124 pushes the pallet 46 in the storage rack 111 towards the height-adaptive lifting seat. In the lowering seat component 115, the height-adapting support frame 118 moves. When the pallet 46 is pushed onto the height-adapting support frame 118 in the height-adapting lifting seat component 115, the piston rod of cylinder 21 stops extending and retracts, causing the pallet push plate 124 to move backward and return to its original position. In the mold transfer trolley component 86, cylinder 21 actuates, causing cylinder support plate 97 to rise, making limit block push-pull plate 105 lock the limit block connecting rod 53 in the lower mold 50. Cylinder 21 on cylinder support plate 97 actuates, pulling the limit block connecting rod 53 to the inside of the lower mold 50. The limit block connecting rod 53 pulls the longitudinal mold head limit block 54 through the window at the lower outer end of the longitudinal module unit 60 into the inside of the lower mold 50. The mold head pressure reduction group in the automatic upper pallet assembly 6... When the hydraulic cylinder 16 in component 109 actuates, it presses down the longitudinal mold head assembly 63 near the automatic upper support plate assembly 6 in the lower mold assembly 45, making the top of the longitudinal mold head assembly 63 flush with the top of the lower mold 50. The reduction motor 32 in the height-adaptive lifting seat component 115 in the automatic upper support plate assembly 6 actuates, driving the height-adaptive support frame 118 to rise or fall. When the height-adaptive support frame 118 rises to be flush with the upper surface of the lower mold 50, the reduction motor 32 stops actuating. The cylinder 21 in front of the lower part 120 of the drive robotic arm component 116 is activated, causing the mold push plate 96 in the drive robotic arm component 116 to fall. The reduction motor 32 in the drive robotic arm component 116 actuates, causing the lower part 120 of the robotic arm to move towards the lower mold 50.After the geared motor 32 is activated, the cylinder 21 below the upper part 119 of the robotic arm is activated, pushing the mold pusher plate 96 to continue moving towards the lower mold 50. After the mold pusher plate 96 pushes the support plate 46 completely into the lower mold 50, the geared motor 32 in the height-adaptive lifting seat component 115 reverses its action, causing the mold pusher plate 96 to retract. The cylinder 21 below the upper part 119 of the robotic arm and the cylinder 21 in front of the lower part 120 of the robotic arm are activated, causing the mold pusher plate 96 to move back and up to its original position. The piston rod of the hydraulic cylinder 16 in the mold head pressure reduction component 109 of the automatic upper support plate assembly 6 retracts, causing the flange 113 to rise. The longitudinal mold head assembly 63 near the end of the automatic upper support plate assembly 6 in the lower mold assembly 45 rises upward to the limit bolt 5 under the action of the compression spring 68. At position 7, the cylinder 21 on the cylinder support plate 97 of the mold transfer trolley component 1 (86) actuates, pushing the limiting block connecting rod 53 to the outside of the lower mold 50. The limiting block connecting rod 53 pushes the longitudinal mold head limiting block 54 through the window at the lower end of the outer side of the longitudinal module unit 60 and into the outside of the lower mold 50, completing the action of the automatic upper support plate 46. After the upper support plate 46 has completed its action, the reduction motor 32 in the mold transfer trolley component 1 (86) starts, causing the mold transfer trolley component 1 (86) to move forward along the front transverse track 77. When the mold transfer trolley component 1 (86) moves to the underside of the drive robotic arm component 2 (84), and when the circular circulation track 9 in the mold transfer trolley component 1 (86) aligns with the right longitudinal track 76, the reduction motor 32 stops, and the longitudinal mold head assembly... The plug 66 in component 63 is inserted into the guide groove at the bottom corner of the longitudinal mold head 65. A release agent is applied to the upper side of the support plate 46 and the inner side of the groove formed by the lower mold 50 and the mold head assembly 51. Then, mesh cloth or wire mesh is placed into the groove formed by the lower mold 50 and the mold head assembly 51 and placed on the support plate 46. The cylinder 21 in mold transfer trolley component 1 86 actuates, causing the mold positioning plate 106 to descend and separate from the trolley positioning rods on both sides of the trolley frame 71. The cylinder 21 in drive robotic arm component 2 84 actuates, causing the robotic arm 89 and mold push plate 96 to move. The mold push plate 96 pushes the trolley 47, lower mold assembly 45, and support plate 46 from the mold transfer trolley component 1 86 on the front transverse track 77 to the right longitudinal track 76. When the trolley 47... After the lower mold assembly 45 and the support plate 46 move onto the right longitudinal track 76, the trolley 47 completely passes the deflector plate 99. Then, the piston rod of cylinder 21 in the second drive robotic arm component 84 retracts, causing the robotic arm 89 and the mold pusher plate 96 to move back. This starts the reduction motor 32 in the deflector assembly 85, moving the trolley 47, lower mold assembly 45, and support plate 46 below the hopper frame assembly 12. The reduction motor 32 in the deflector assembly 85 stops, and the hydraulic cylinder 16 in the hopper frame assembly 12 actuates, causing the hopper assembly 13 to descend. When the lower hopper bottom plate 19 in the hopper assembly 13 is in contact with the longitudinal mold head 65 in the longitudinal mold head assembly 63 and the transverse mold head unit 69 in the transverse mold head assembly 64, the hydraulic cylinder 16 in the hopper frame assembly 12 stops.When the cylinder 21 in the hopper assembly 13 starts to move, it drives the bottom plate 19 of the lower hopper 18 to move outward. When the bottom plate 19 moves outward and opens the lower end of the lower hopper 18, the cylinder 21 in the hopper assembly 13 stops moving. The vibration motor 24 in the hopper assembly 13 starts, and the vibration motor 24 vibrates, causing the material in the lower hopper 18 to enter the groove formed by the lower mold 50 and the mold head assembly 51 and onto the support plate 46. The vibration motor 24 stops vibrating, and the piston rod of the cylinder 21 in the hopper assembly 13 drives the bottom plate 19 of the lower hopper 18 to move inward. When the lower end of the lower hopper 18 closes, the cylinder 21 stops moving. The bottom plate 19 pushes the excess material into the waste hopper 34 in the waste collection assembly 11. The hopper frame assembly 1... The hydraulic cylinder 16 in section 2 lowers the bottom plate 19 of the hopper assembly 13 to compact and fix the material in the groove formed by the lower mold 50 and the mold head assembly 51. After the material in the groove formed by the lower mold 50 and the mold head assembly 51 is compacted, the piston rod of the hydraulic cylinder 16 in the hopper frame assembly 12 drives the hopper 18 to rise, separating the bottom plate 19 of the hopper assembly 13 from the material in the groove formed by the lower mold 50 and the mold head assembly 51. The piston rod of the cylinder 21 in the waste material collection assembly 11 moves the waste material hopper 34 into the waste material collection frame 33. The reduction motor 32 in the drive wing assembly 85 starts and drives the trolley 47, the lower mold assembly 45 and the support plate 46 to move forward along the right longitudinal track 76. The trolley 47 and the lower mold assembly Part 45 and pallet 46 move from the fixed longitudinal rail 79 to the liftable longitudinal rail assembly 80 and enter the press assembly 2. The lower die 50 is placed directly below the upper die 48. The hydraulic cylinder 16 in the liftable longitudinal rail assembly 80 is activated, driving the annular circulating rail 9 on the rail support base 82 to descend. The lower die assembly 45 descends with the annular circulating rail 9 and lands on the working platform 43 in the press assembly 2. At this time, the trolley 47 separates from the lower die assembly 45. After the trolley 47 separates from the lower die assembly 45, the hydraulic cylinder 16 in the liftable longitudinal rail assembly 80 stops operating. The hydraulic cylinder 16 in the press assembly 2 is activated, driving the middle beam 41 and the upper die 48 to descend. When the upper die 48 contacts the material in the groove formed by the lower die 50 and the die head assembly 51, When the longitudinal die 65 and the transverse die unit 69 are engaged, the upper die 48 begins to extrude the material in the groove formed by the lower die 50 and the die head assembly 51. As the material in the groove formed by the lower die 50 and the die head assembly 51 descends due to extrusion, the longitudinal die 65 and the transverse die head unit 69 descend synchronously. When the longitudinal die 65 descends to the longitudinal die head limit block 54 and the transverse die unit 69 descends to the transverse die head limit block 56, the hydraulic cylinder 16 in the press assembly 2 stops pressurizing and maintains pressure. After the pressure maintenance is completed, the hydraulic cylinder 16 in the press assembly 2 starts to drive the upper die 48 to rise, and the extrusion forming action of the tube 126 is completed. The hydraulic cylinder 16 in the liftable longitudinal track assembly 80 starts to drive the annular circulating track 9 on the track support base 82 to rise.When the circular track 9 in the liftable longitudinal track assembly 80 rises to be level with the fixed longitudinal track 79, the hydraulic cylinder 16 in the liftable longitudinal track assembly 80 stops operating. The reduction motor 32 in the drive wing assembly 85 starts, driving the trolley 47, lower mold assembly 45, and pallet 46 forward along the right longitudinal track 76. When the wing plate 99 in the drive wing assembly 85 pushes the trolley 47, lower mold assembly 45, and pallet 46 from the right longitudinal track 76 onto the mold transfer trolley component 2 87 on the rear transverse track 78, the reduction motor 32 in the drive wing assembly 85 stops operating. The reduction motor 32 in the drive wing assembly 85 rotates in the opposite direction, causing the drive wing assembly 85 to return to the stop position. The cylinder 21 in the mold transfer trolley component 2 87 starts, driving the mold... Positioning plate 106 rises and locks the trolley positioning rods on both sides of the trolley frame 71 to position the trolley 47. Cylinder 21 in drive arm component 83 starts, causing mold push plate 96 to descend. Gear motor 32 in drive arm component 83 starts, causing mold push plate 96 to move. Mold push plate 96 pushes trolley 47, lower mold assembly 45, and support plate 46 forward along the left longitudinal track 75. When trolley 47, lower mold assembly 45, and support plate 46 enter the mold transfer trolley component 86 on the front transverse track 77 from the left longitudinal track 75, gear motor 32 in drive arm component 83 stops. Cylinder 21 in mold transfer trolley component 86 starts, causing mold positioning plate 106 to rise and lock the trolley frame. 71 The positioning rods on both sides of the trolley position the trolley 47. The cylinder 21 in the mold transfer trolley component 86 is activated. The cylinder 21 drives the cylinder support plate 97 to rise, causing the limit block push-pull plate 105 to lock the limit block connecting rod 53 in the lower mold 50. The cylinder 21 on the cylinder support plate 97 is activated, pulling the limit block connecting rod 53 to the inside of the lower mold 50. The limit block connecting rod 53 pulls the longitudinal mold head limit block 54 through the window at the lower end of the outer side of the longitudinal module unit 60 into the inside of the lower mold 50. The hydraulic cylinder 16 in the mold head pressure reduction component 109 in the mold ejection stacking component 5 is activated, pressing down the longitudinal mold head components 63 at both ends of the lower mold 50 in the lower mold assembly 45, so that the top of the longitudinal mold head components 63 is flush with the top of the lower mold 50. The plug 66 in the longitudinal mold head component 63 is pushed out of the longitudinal mold head 60. The die is removed from the guide groove at the bottom corner. The reduction motor 32 in the height-adaptive lifting seat component 115 of the die-out stacking assembly 5 drives the height-adaptive support frame 118 to rise / fall. When the height-adaptive support frame 118 rises to be flush with the upper surface of the lower die 50, the reduction motor 32 stops. The reduction motor 32 in the drive robotic arm component 83 starts, driving the die pusher plate 96 forward. As the longitudinal die head components 63 at both ends of the lower die 50 descend, the die pusher plate 96 moves forward, pushing the support plate 46 on the lower die 50 and the formed tube 126 on the support plate 46 out of the lower die 50 and onto the height-adaptive support frame 118 in the height-adaptive lifting seat component 115. The reduction motor 32 in the drive robotic arm component 83 reverses, driving the die pusher plate 96 back to the stop position.In the first part of the drive robotic arm component 83, cylinder 21 starts, driving the mold push plate 96 to rise and return to the stop position. In the first part of the height-adaptive lifting seat component 115, reduction motor 32 starts, driving the height-adaptive seat frame 118 to rise / fall. When the height-adaptive seat frame 118 rises / falls and is level with the empty layer of the storage rack 111, reduction motor 32 in the first part of the height-adaptive lifting seat component 115 stops moving. In the second part of the demolding and stacking assembly 5, reduction motor 32 in the third part of the drive robotic arm component 116 moves, driving the upper part 119 of the robotic arm to move towards the lower mold 50. After the upper part 119 of the robotic arm moves into position, reduction motor 32... After the reduction motor 32 stops moving, the piston rod of the cylinder 21 below the upper part 119 of the robotic arm retracts, pulling the mold push plate 96 to continue moving towards the lower mold 50. When the mold push plate 96 moves into position, the cylinder 21 in front of the lower part 120 of the robotic arm moves, causing the mold push plate 96 to descend. After the mold push plate 96 descends, the reduction motor 32 in the robotic arm component 116 starts, driving the mold push plate 96 to push the support plate 46 and the formed tube 126 on the support plate 46 out of the height-adaptive seat 118 and into the height-adaptive seat 118. When the upper part 119 of the robotic arm moves into position, the reduction motor 32 stops. After the reduction motor 32 stops, the piston rod of the cylinder 21 below the upper part 119 of the robotic arm drives the mold push plate 96 to continue pushing the tray 46 and the formed tube 126 on the tray 46 into the empty layer of the tube storage rack 111. Then, the piston rod of the cylinder 21 in front of the lower part 120 of the robotic arm retracts, driving the mold push plate 96 to rise and return to its position, completing the demolding and stacking action; the mold head in the demolding and stacking assembly 5 The piston rod of hydraulic cylinder 16 in pressure reduction assembly 109 retracts, causing flange 113 to rise. In lower mold assembly 45, the longitudinal mold head assemblies 63 at both ends of lower mold 50 rise to the limit bolt 57 under the action of compression spring 68 and stop rising. In mold transfer trolley component 86, the piston rod of cylinder 21 on cylinder support plate 97 retracts, pushing the limit block connecting rod 53 to the outside of lower mold 50. The limit block connecting rod 53 pushes the longitudinal mold head limit block 54 through the window at the lower end of the outer side of the longitudinal module unit 60 into lower mold 50. On the outer side, the piston rods of the cylinders 21 on both sides of the trolley frame 71 retract, causing the cylinder support plate 97 to descend, disengaging the limit block push-pull plate 105 from the limit block connecting rod 53 in the lower mold 50. The reduction motor 32 in the mold transfer trolley component 86 starts, driving the trolley 47 and lower mold assembly 45 on the mold transfer trolley component 86 forward along the front transverse track 77 to the automatic upper pallet assembly 6 station. The reduction motor 32 in the mold transfer trolley component 86 then stops working, entering the next production cycle. Example

[0052] like Figure 16 As shown, the specifications of the tube 126 are: L-shaped tube 126 with a length of 500mm x 800mm on both sides, a height of 1550mm, and a thickness of 30mm.

[0053] like Figure 2 , Figure 5 , Figure 6 As shown: Before production, replace the longitudinal module unit 60. The longitudinal module units 60 are arranged in close proximity in the longitudinal direction. After the longitudinal module 58 is assembled, the length of the lower mold 50 is 1550mm. Replace the transverse module units 62 on both sides. The transverse module units 62 are arranged in close proximity in the transverse direction. After the transverse module 59 is assembled, the width of the lower mold 50 on both sides is 500mm x 800mm. The reduction motor 32 in the hopper width adjustment component 20 is started to drive the hopper built-in side plate 25 to move so that the width of the discharge port on both sides of the lower hopper 18 is 500mm x 800mm. Replace the longitudinal mold head limit block 54 and the transverse mold head limit block 56. Select the corresponding support plate 46 for the L-shaped tube 126 with a length of 500mm x 800mm and a height of 1550mm. The production process is the same as the production process of other specifications of L-shaped tube 126.

[0054] As described above, although the invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A production line for L-shaped tube extrusion molding, characterized in that, include: The mold conveying assembly includes a circular circulation track composed of a longitudinal conveying assembly and a transverse conveying assembly; The circular loop track includes a liftable longitudinal track; A fabric assembly, disposed above a track in the longitudinal conveying assembly, the fabric assembly comprising: The feeding assembly has a feeding hopper equipped with a vibrating motor, and the volume of the feeding hopper cavity can be adjusted by sliding the internal side plate of the feeding hopper. The remaining material collection component allows the remaining hoppers to extend or retract along a predetermined sliding stroke; The press assembly is positioned above the track in the longitudinal conveying assembly, and the middle beam is driven by multiple sets of hydraulic cylinders to move up and down between the upper beam and the lower beam. The mold assembly includes an upper mold assembly fixedly connected to the press assembly, and a lower mold assembly placed on the annular circulating track and movable along the annular circulating track; the lower mold assembly includes a mold head assembly and a lower mold. The lower mold includes a longitudinal module and a transverse module; the longitudinal module is composed of multiple independent longitudinal module units arranged in close succession along the longitudinal direction. The horizontal module is composed of multiple independent horizontal module units arranged in close succession. The outer sides of the horizontal module units on both sides are fixed with linear guide rails. After the horizontal module is placed on top of the vertical module and assembled, the upper cross section is shaped like a "∟". The mold head assembly includes a vertical mold head assembly and a horizontal mold head assembly. The mold head assembly can move up and down relative to the lower mold. The compression spring in the mold head assembly causes the upper end surface of the mold head assembly to protrude from the upper end surface of the lower mold assembly. A die-out palletizing assembly is disposed on one side of the transverse conveying assembly; the die-out palletizing assembly includes a die head pressure reduction assembly and a storage rack in the shape of a "∟" for layered storage. An automatic pallet loading assembly is located on one side of the transverse conveying assembly.

2. The L-shaped tube extrusion molding production line according to claim 1, characterized in that, The feeding assembly includes a hopper frame assembly and a hopper assembly disposed on the hopper frame assembly; The waste material collection assembly is disposed on one side of the feeding assembly; the waste material collection assembly includes a waste material collection frame disposed on the side of the hopper frame assembly; a waste material hopper cantilever slidably disposed on the waste material collection frame; and a waste material hopper fixed at one end of the waste material hopper cantilever.

3. The L-shaped tube extrusion molding production line according to claim 2, characterized in that, The hopper assembly includes: A hopper with openings at the top and bottom and capable of sliding up and down within a predetermined stroke range along the hopper frame assembly; a hopper bottom plate slidably disposed at the lower end of the hopper and capable of opening or closing the hopper; a vibrating motor fixed at both ends of the hopper; and a hopper width adjustment assembly disposed in the inner cavity of the hopper. The opening width of the hopper is adjustable under the driving action of the hopper width adjustment component.

4. The L-shaped tube extrusion molding production line according to claim 3, characterized in that, The hopper width adjustment assembly includes a pair of hopper built-in side plates that match the inner cavity length of the hopper, are in contact with and fit against the inner side of the hopper, and can move up and down. The built-in side plate of the hopper can slide along the inner wall of the hopper after being driven, thereby changing the cavity volume of the hopper.

5. The L-shaped tube extrusion molding production line according to claim 1, characterized in that, The press assembly includes: A top beam and a bottom beam are constructed by multiple columns installed parallel to each other. The middle beam is slidably sleeved on the column and located between the upper beam and the lower beam; The working platform is fixed to the upper surface of the lower beam; At least one set of hydraulic cylinders is fixed to the upper end of the upper beam. The upper beam is provided with through holes matching the number of hydraulic cylinders. The piston rod of the hydraulic cylinder passes through the through hole and is connected to the middle beam at its end, thereby pushing the middle beam to move up and down between the upper beam and the lower beam.

6. The L-shaped tube extrusion molding production line according to claim 1, characterized in that, The mold assembly includes an upper mold assembly, a lower mold assembly, and a support plate; one set of upper mold assemblies is provided in the production line, and the upper end of the upper mold assembly is fixedly connected to the lower end of the middle beam in the press assembly; multiple sets of lower mold assemblies and support plates are provided in the production line; The lower mold assembly also includes: A cylindrical slider base plate is fixed on the outer sides of both ends of the lower mold. A cylindrical slider is installed on the cylindrical slider base plate, and limit bolts are provided on the cylindrical slider base plate. The longitudinal module units at both ends are equipped with linear guide rail base plates, and linear guide rails are mounted on the linear guide rail base plates. Multiple windows are provided on the lower outer side of the longitudinal module units at both ends. Limiting block connecting rods are also provided inside the longitudinal module units at both ends. Multiple longitudinal mold head limiting blocks are fixed to the limiting block connecting rods. Linear guide rail slider base plates are fixed to the limiting block connecting rods. Linear guide rail sliders are fixed to the linear guide rail slider base plates. The linear guide rail sliders slide in cooperation with the linear guide rails inside the longitudinal module units. The longitudinal mold head limiting blocks slide through the windows at the lower outer side of the longitudinal module units. Transverse mold head limiting blocks are fixed to the upper sides of both sides of the longitudinal module units. Limiting bolts are provided on the transverse mold head limiting blocks. Linear guide rails are also fixed to the outer side of the end faces of the longitudinal module units at both ends.

7. The L-shaped tube extrusion molding production line according to claim 6, characterized in that, The die head assembly can move up and down relative to the lower die, and the compression spring in the die head assembly causes the upper end face of the die head assembly to protrude from the upper end face of the lower die assembly. The mold head assembly and the upper end of the lower mold together form a groove with a "∟" shaped cross section. The support plate matches the groove at the upper end of the lower mold. The support plate is placed in the groove at the upper end of the lower mold before the tube wrapping production, and is removed from the lower mold assembly along with the formed tube after the tube wrapping production is completed.

8. The L-shaped tube extrusion molding production line according to claim 1, characterized in that, The mold conveying assembly includes a track assembly and a mold driving assembly. The track assembly is a circular loop track in the shape of an "U". The track assembly includes a left longitudinal track, a right longitudinal track, a front transverse track and a rear transverse track. The left longitudinal track is a fixed longitudinal track, and the right longitudinal track is composed of a fixed longitudinal track and a liftable longitudinal track assembly. The mold driving assembly includes a first driving robotic arm component, a second driving robotic arm component, a driving wing assembly, a first mold transfer trolley component, and a second mold transfer trolley component. The first driving robotic arm component is located above the left longitudinal track, the second driving robotic arm component is located above the intersection of the end of the front transverse track and the right longitudinal track, and the driving wing assembly is located on both sides of the right longitudinal track. The drive fin assembly includes a fin plate and a rotating shaft. The center of gravity of the fin plate is offset relative to the rotating shaft. When the robotic arm drives the mold to move forward along the right longitudinal track, the fin plate rotates from a vertical state to a horizontal state. After the mold passes the fin plate, the fin plate rotates from a horizontal state to a vertical state due to the offset of its center of gravity relative to the rotating shaft. The mold transfer trolley component is set on the front transverse track and can move along the direction of the front transverse track. The mold transfer trolley component two is mounted on the rear transverse track and can move along the direction of the rear transverse track.

9. The L-shaped tube extrusion molding production line according to claim 1, characterized in that, The ejection palletizing assembly includes: Multiple sets of die head pressure reduction components; the multiple sets of die head pressure reduction components include a set of die head pressure reduction frames erected in parallel with each other, hydraulic cylinder seat plates fixed at both ends of the upper part of the die head pressure reduction frames, hydraulic cylinders fixed on the hydraulic cylinder seat plates, and flanges fixed to the piston rod ends of the hydraulic cylinders. A tube-pushing assembly is disposed after the die head pressure-reducing assembly; the tube-pushing assembly includes a tube-pushing frame component mounted on a base surface, a height-adaptive lifting seat component 1 slidably disposed within the tube-pushing frame component, a drive robotic arm component 3 disposed on the height-adaptive lifting seat component 1, and a die push plate connected to the drive robotic arm component 3; wherein, the drive robotic arm component 3 provides the die push plate with lateral and vertical degrees of freedom of movement; The storage rack is installed after the storage push assembly; the storage rack includes a storage frame and a storage layer support, the storage layer support has multiple layers evenly distributed vertically, the storage layer support is fixed on the storage frame, and the storage layer support is in the shape of "∟".

10. A method for preparing tubes based on the L-shaped tube extrusion molding production line according to any one of claims 1 to 9, characterized in that... The process includes the following steps: 1) Automatic tray loading: The pallet pusher pushes the pallet, which is pre-placed on the storage rack, onto the height-adaptive frame. The height-adaptive frame automatically rises to match the height of the lower mold. The hydraulic cylinder in the mold head pressure reduction assembly presses down the longitudinal mold head. The three cylinders in the drive robotic arm component lower the mold pusher. The mold pusher pushes the pallet to move towards the lower mold. When the pallet moves into the groove formed by the lower mold and the mold head assembly, it stops moving. The piston rod of the hydraulic cylinder in the mold head pressure reduction assembly retracts, causing the longitudinal mold head to rise back to its original position. The pallet then enters the groove formed by the lower mold and the mold head assembly. 2) Apply release agent and install mesh: Apply release agent to the upper side of the pallet and the inner side of the groove formed by the lower mold and the mold head assembly, then place the mesh cloth or wire mesh into the groove formed by the lower mold and the mold head assembly and place it on the pallet; 3) Automatic material feeding and pre-compression: The hydraulic cylinder in the hopper assembly lowers the hopper assembly. When the bottom plate of the hopper in the hopper assembly is in contact with the upper surface of the longitudinal and transverse die head units, the hydraulic cylinder stops. The pneumatic cylinder in the hopper assembly starts to move the bottom plate of the hopper, opening the lower end of the hopper. The vibrating motor on the hopper vibrates and discharges the material. After the material is discharged, the pneumatic cylinder moves the bottom plate of the hopper to close the lower end of the hopper. The hydraulic cylinder in the hopper assembly lowers the bottom plate of the hopper. The bottom plate of the hopper pre-presses and fixes the material in the groove formed by the lower die and the die head assembly. After pre-pressing, the hydraulic cylinder raises the hopper assembly, separating the bottom plate of the hopper from the pre-pressed material, and the material distribution is completed. 4) Extrusion molding: In the press assembly, the hydraulic cylinder moves through the middle beam to drive the upper die in the mold assembly to descend. The descending upper die squeezes the material in the groove formed by the lower die and the die head assembly. After holding the pressure for a period of time, the hydraulic cylinder drives the upper die to move upward, and the material is squeezed and formed. 5) Automatic mold ejection and palletizing: The hydraulic cylinder in the die head pressure reduction assembly presses down the longitudinal die heads at both ends of the lower die. The reduction motor in the first drive robotic arm component drives the die pusher plate forward, pushing the pallet on the lower die and the formed tube on the pallet plate out of the lower die and into the height adaptation frame in the first height adaptation lifting seat component. The reduction motor in the third drive robotic arm component starts, driving the die pusher plate to push the pallet plate and the formed tube on the pallet plate out of the height adaptation frame and into the empty layer of the tube storage rack. The piston rod of the cylinder below the upper part of the robotic arm drives the die pusher plate to continue pushing the pallet plate and the formed tube on the pallet plate into the empty layer of the tube storage rack. The die removal and stacking action is completed.

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