Double-layer co-extrusion suede foot pad composite production line

Abstract

The invention discloses a double-layer co-extrusion suede foot pad composite production line which comprises two screws, two hoppers, two electric boxes, two die heads, a composite rack plate, a lower grain roller, an upper grain roller and a bearing seat, the rear sides of the tops of the two screws communicate with machine barrel feeding ports, and machine barrel feeding port baffles are arranged at the tops of the two machine barrel feeding ports. The tops of the two machine barrel feeding ports are both communicated with hoppers, the two through barrels are both communicated with the front side of a screw gearbox, inner rotating rods are both installed in the two screws, threaded stirring blades are both installed on the two inner rotating rods, and die head flange transition elbow heating plates are both installed on the front sides of the two screw die head connecting flanges. The functions of material conveying, extrusion, compounding, embossing, traction and rolling are integrated on one production line, manual intervention in intermediate links is reduced, and the production continuity and the automation degree are improved.

Description

Technical Field

[0001] The invention relates to the technical field of polymer material processing and automobile interior decoration manufacturing, in particular to a double-layer co-extruded suede foot pad composite production line. Background Art

[0002] As the automotive aftermarket is booming, people are paying more and more attention to the quality and comfort of automotive interiors, and double-layer co-extrusion suede mat composite production lines have emerged. Traditional mat production has complex production processes and low efficiency, which cannot meet the needs of large-scale production. Multiple independent equipment are required to complete different processes respectively. The connection between the processes is not tight enough, resulting in a long production cycle. In the composite process of suede mats, it may be difficult to ensure the quality stability of the product, and the versatility is poor. Only a single type or specification of mats can be produced, which is difficult to adapt to the diverse product needs in the market. In addition, traditional production lines rely on a large amount of manual operation, which is not only labor-intensive, but also prone to human errors, which will affect product quality and production efficiency. At the same time, it is not conducive to enterprises to reduce labor costs and improve production stability. Summary of the invention

[0003] The purpose of the present invention is to provide a double-layer co-extruded suede foot pad composite production line to solve the problems of production efficiency, product quality, equipment versatility and degree of automation of the traditional suede foot pad composite production line mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a double-layer co-extruded suede foot pad composite production line, comprising two screws, two hoppers, two electrical boxes, two die heads, a composite frame plate, a lower graining stick, an upper graining stick and a bearing seat, the top rear sides of the two screws are connected to a barrel inlet, the tops of the two barrel inlets are provided with a barrel inlet baffle, the tops of the two barrel inlets are connected to a hopper, the rear ends of the two screws are connected to a through barrel, the two through barrels are connected to the front side of the screw gearbox, and the rear sides of the two screw gearboxes are provided with a belt cover. , the interiors of the two screws are both equipped with inner rotating rods, the two inner rotating rods are both equipped with threaded stirring blades, the front ends of the two screws are both equipped with screw die head connecting flange nuts, the front sides of the two screw die head connecting flange nuts are both equipped with screw die head connecting flanges, the front sides of the two screw die head connecting flanges are both equipped with die head flange transition elbow heating plates, the two die head flange transition elbow heating plates are both in contact with the die head on one side close to each other, the bottoms of the two die heads are both equipped with die head adjusting screws on the front and rear sides, the two die head adjusting screws are both equipped with die head support frames, and the two Each of the die heads is in contact with the outer surface of the lower pattern stick, the lower pattern stick is arranged at the lower part of the bearing seat, the bearing seat is provided with a superimposed pattern mold, the upper pattern stick is arranged at the upper part of the superimposed pattern mold, a plurality of guide rollers are equidistantly arranged at the lower part of the lower pattern stick, the lower pattern stick, the bearing seat and the front and rear ends of the lower pattern stick are all installed with composite stick motor plates, the left and right sides of the plurality of composite stick motor plates are respectively installed with wall panel support rod 1 and wall panel support rod 2, the front and rear ends of the upper pattern stick are all installed with worm reducers, the rear end of the bearing seat is installed with servo motor 2, and the rear end of the lower pattern stick is installed with a worm reducer. It is equipped with a thick spur gear, and a helical gear reducer is installed on the thick spur gear. Corrugated handwheels are provided on the two worm reducers. A mesh roll adjustment block screw is installed at the bottom of the two worm reducers. A mesh roll adjustment block screw fixing block is threadedly installed on the two mesh roll adjustment block screws. A mesh roll adjustment block is threadedly installed on the bottom of the two mesh roll adjustment block screws. Adjustment bearing seats are installed on the two mesh roll adjustment blocks. Bearing seat slide rail pressure blocks are installed at the front and rear ends of the bearing seats, and bearing seat pressure roll fixing pressure blocks are installed on the sides of multiple bearing seat slide rail pressure blocks.

[0005] As a preferred technical solution of the present invention, a supporting cross frame is mounted on the upper grain roller, telescopic rollers are equidistantly installed on the top and left side of the supporting cross frame, a connecting frame is installed on the left bottom of the supporting cross frame, a winding and cutting assembly is installed on the left side of the connecting frame, a clamping rod is arranged at the lower part of the winding and cutting assembly, clamping cylinders are installed at the bottom of the front and rear ends of the clamping rod, clamping cylinder seats are installed on the two clamping cylinders, traction roller bearing seats are installed at the front and rear ends of the right side of the connecting frame, traction cylinders are installed on the tops of the two traction roller bearing seats, two cylinder pressure plates are installed at the bottoms of the two traction cylinders, and the upper two cylinder pressure plates are fixedly connected to the front and rear ends of the traction felt press rollers respectively. The two cylinder pressure plates below are respectively fixedly connected to the front and rear ends of the traction felt press, a servo motor 1 and a reducer are installed on the rear side of the connecting frame, the servo motor 1 is fixedly connected to the rear end of the traction felt press roller, the servo motor 1 is connected to the reducer, a convex key type air shaft is provided at the lower left part of the clamping rod, a rotating wheel is installed at the bottom of one end of the convex key type air shaft, the rotating wheel is rotatably connected to the connecting plate, the other end of the convex key type air shaft is rotatably connected to the front side of the air roller motor frame, a winding hanger beam is provided on the left side of the supporting cross frame, and winding hanger beam fixing plates are provided on the front and rear sides of the winding hanger beam, and the two winding hanger beam fixing plates are fixedly connected to the front and rear ends of the winding hanger beam.

[0006] As a preferred technical solution of the present invention, an upper stainless steel air hood is installed on the upper part of the outer wall of the two screws, a lower stainless steel air hood is installed on the bottom of the two upper stainless steel air hoods, a plurality of fans are equidistantly connected to the bottom of the two lower stainless steel air hoods, an electric box is installed on the bottom of the two screw gearboxes, a computer operating system chassis display screen is installed on the upper part of the two electric boxes, and a computer operating box rocker arm is installed on the lower part of the two electric boxes.

[0007] As a preferred technical solution of the present invention, an extruder frame is installed on the rear side of the two electrical boxes, an extruder Y-axis slide rail chassis is provided at the bottom of the two extruder frames, an extruder X-axis slide rail chassis is provided at the bottom of the two extruder frames, frame casters are installed at the four corners of the bottom of the two extruder frames, and multiple frame casters are slidably connected to the extruder Y-axis slide rail chassis, a frame chassis guide block is installed at the rear end of the two extruder Y-axis slide rail chassis, and slide rails are provided on the front and rear sides of the top of the two extruder X-axis slide rail chassis, and both slide rails have pulleys that are slidably connected.

[0008] As a preferred technical solution of the present invention, the front and rear ends of the plurality of guide rollers are detachably connected to the inner sides of the corresponding composite frame plates, and the two composite frame plates are fixedly connected to the front and rear ends of the top of the composite frame, respectively; a composite frame upper sealing plate 1 is installed on the top of the composite frame, a composite frame upper sealing plate 2 is installed on the rear side of the top of the composite frame, composite frame front and rear doors are installed on the front and rear sides of the composite frame, composite frame left and right doors are installed on the left and right sides of the composite frame, and two foot cups are installed on the four corners of the bottom of the composite frame.

[0009] As a preferred technical solution of the present invention, a plurality of upright frames are installed at the bottom of the right side of the supporting horizontal frame, and the plurality of upright frames are fixedly connected to the right side of the winding rack 2. A winding rack connecting plate is installed on the right side of the winding rack 2, and a plurality of foot cups 1 are equidistantly installed at the bottom of the winding rack 2, and a winding rack 1 is installed on the rear side of the winding rack connecting plate.

[0010] As a preferred technical solution of the present invention, a plurality of inner stop sleeves are equidistantly provided outside the two screw rods, and two mounting sleeve frames are installed on the two screw rods.

[0011] As a preferred technical solution of the present invention, the two screw gearboxes and the two belt covers are installed on the top rear side of the corresponding electrical box.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] Through the setting of two screws, hoppers and die heads, two different materials can be extruded at the same time to achieve double-layer co-extrusion, and suede foot pads with different performance or appearance can be produced. The die head position can be accurately adjusted by the die head adjustment screw to ensure the uniformity and stability of material extrusion; the screw components of the anilox roll adjustment block can accurately adjust the upper roll to ensure the embossing effect and composite quality. By equipping the computer operating system chassis display and electrical box, it can realize automatic control and monitoring of various parts of the production line, improve production efficiency and product quality stability. By integrating the functions of material conveying, extrusion, composite, embossing, traction and winding into one production line, manual intervention in the intermediate links is reduced, and the continuity and automation of production are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram showing the structure of the electric box of the present invention;

[0015] Figure 2It is a schematic diagram showing the structure of the composite chassis, the composite chassis upper sealing plate 1, the composite chassis upper sealing plate 2, the guide roller, the lower pattern stick, the bearing seat, the stacked pattern mold, the upper pattern stick, the wall panel support rod 1, the wall panel support rod 2, the composite light stick motor plate, the worm reducer, the corrugated hand wheel, the pattern stick adjustment block screw fixing block, the pattern stick adjustment block screw, the pattern stick adjustment block, the adjustment bearing seat, the bearing seat slide rail pressing block and the bearing seat pressing stick fixing pressing block;

[0016] Figure 3 It is a schematic diagram showing the structure of the guide roller, the lower graining roller, the bearing seat, the laminated pattern mold and the upper graining roller of the present invention;

[0017] Figure 4 It is a schematic diagram showing the structure of the fan, the screw die head connecting flange nut, the screw die head connecting flange and the die head flange transition elbow heating plate of the present invention;

[0018] Figure 5 It is a schematic diagram showing the structure of the winding and cutting assembly, the pressing rod, the connecting plate, the rotating wheel, the convex key type air shaft and the expansion roller motor frame of the present invention;

[0019] Figure 6 It is a schematic diagram showing the structure of the traction roller bearing seat, traction cylinder, cylinder pressure plate, traction press felt, traction press felt roller, servo motor and reducer of the present invention.

[0020] In the figure: 1. Support cross frame; 2. Telescopic roller; 3. Vertical frame; 4. Winding frame 1; 5. Winding frame 2; 6. Winding frame connecting plate; 7. Foot cup 1; 9. Winding hanger cross beam; 10. Winding hanger cross beam fixing plate; 11. Connecting frame; 12. Pressing cylinder seat; 13. Winding and cutting material assembly; 14. Pressing rod; 15. Connecting plate; 16. Rotating wheel; 17. Keyed air shaft; 18. Air roller motor frame; 19. Traction roller bearing seat; 20. Traction cylinder; 21. Cylinder pressure plate; 22. Traction felt; 23. Traction felt roller; 24. Servo motor; 25. Speed ​​reducer; 26. Extruder X-axis slide rail chassis; 27. Slide rail; 28. Pulley; 29. ​​Extruder Y-axis slide rail chassis; 30. Frame chassis guide rail block; 31. Extruder frame; 32. Electric box; 33. Screw gearbox; 34. Belt cover; 35. Computer operating system chassis display; 36. Computer operating box rocker arm; 37. Through barrel; 38. Screw; 39. Inner stopper; 40. Inner rotating rod; 41. Threaded stirring blade; 42. Mounting frame; 43. Hopper; 44. Barrel inlet baffle; 45. There is a barrel inlet; 46, frame casters; 47, upper stainless steel hood; 48, lower stainless steel hood; 49, fan; 50, screw die connection flange nut; 51, screw die connection flange; 52, die flange excessive elbow heating plate; 53, die support frame; 54, die adjustment screw; 55, die; 56, clamping cylinder; 57, front and rear doors of composite chassis; 58, foot cup 2; 59, composite frame plate; 60, left and right doors of composite chassis; 61, composite chassis; 62, composite chassis upper cover plate 1; 63, composite chassis upper cover plate 2; 64. Guide roller; 65. Lower pattern stick; 66. Bearing seat; 67. Overlay pattern mold; 68. Upper pattern stick; 69. Wall panel support rod one; 70. Wall panel support rod two; 71. Composite stick motor plate; 72. Worm reducer; 73. Corrugated hand wheel; 74. Anilox stick adjustment block screw fixing block; 75. Anilox stick adjustment block screw; 76. Anilox stick adjustment block; 77. Adjusting bearing seat; 78. Bearing seat slide rail pressure block; 79. Bearing seat pressure stick fixing pressure block; 80. Servo motor two; 81. Helical gear reducer; 82. Thick spur gear. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-6The present invention provides a double-layer co-extruded suede foot pad composite production line, comprising two screws 38, two hoppers 43, two electrical boxes 32, two die heads 55, a composite frame plate 59, a lower grain roll 65, an upper grain roll 68 and a bearing seat 66. The top and rear sides of the two screws 38 are connected to a barrel inlet 45, the tops of the two barrel inlets 45 are provided with a barrel inlet baffle 44, the tops of the two barrel inlets 45 are connected to the hopper 43, the rear ends of the two screws 38 are connected to a through barrel 37, the two through barrels 37 are connected to the front side of a screw gearbox 33, the rear sides of the two screw gearboxes 33 are provided with a belt cover 34, and the two The interior of the screw 38 is equipped with an inner rotating rod 40, and the two inner rotating rods 40 are equipped with a threaded stirring blade 41. The front ends of the two screws 38 are equipped with a screw die connecting flange nut 50, and the front sides of the two screw die connecting flange nuts 50 are equipped with a screw die connecting flange 51. The front sides of the two screw die connecting flanges 51 are equipped with a die flange transition elbow heating plate 52, and the two die flange transition elbow heating plates 52 are close to each other. The sides of the two die heads 55 are in contact with the die head, and the front and rear sides of the bottom of the two die heads 55 are equipped with die head adjustment screw rods 54, and the two die head adjustment screw rods 54 are equipped with a die head support frame 53. The two die heads 55 are The lower pattern roller 65 is in contact with the outer surface of the lower pattern roller 65, the lower pattern roller 65 is arranged at the lower part of the bearing seat 66, and the bearing seat 66 is provided with a superimposed pattern mold 67, and the upper pattern roller 68 is arranged at the upper part of the superimposed pattern mold 67, and a plurality of guide rollers 64 are equidistantly arranged at the lower part of the lower pattern roller 65, and the lower pattern roller 65, the bearing seat 66 and the front and rear ends of the lower pattern roller 65 are all installed with a composite light stick motor plate 71, and the left and right sides of the plurality of composite light stick motor plates 71 are respectively installed with a wall panel support rod 1 69 and a wall panel support rod 2 70, and the front and rear ends of the upper pattern roller 68 are both installed with a worm reducer 72, and the rear end of the bearing seat 66 is installed with a servo motor 2 80, and the rear end of the lower pattern roller 65 is installed It is equipped with a thick spur gear 82, on which a helical gear reducer 81 is installed, and two worm reducers 72 are each provided with a corrugated handwheel 73, and the bottom of the two worm reducers 72 are each installed with a mesh roller adjustment block screw 75, and the two mesh roller adjustment block screw 75 are both threadedly installed with a mesh roller adjustment block screw fixing block 74, and the bottom of the two mesh roller adjustment block screws 75 are threadedly installed with a mesh roller adjustment block 76, and the two mesh roller adjustment blocks 76 are each installed with an adjustment bearing seat 77, and the front and rear ends of the bearing seat 66 are both installed with bearing seat slide rail pressing blocks 78, and the sides of multiple bearing seat slide rail pressing blocks 78 are all installed with bearing seat pressing sheet roller fixing pressing blocks 79.

[0023] A supporting cross frame 1 is mounted on the upper pattern roller 68, and telescopic rollers 2 are equidistantly installed on the top and left side of the supporting cross frame 1, a connecting frame 11 is installed on the left bottom of the supporting cross frame 1, a winding and cutting assembly 13 is installed on the left side of the connecting frame 11, and a pressing rod 14 is arranged at the lower part of the winding and cutting assembly 13, and a pressing cylinder 56 is installed at the bottom of the front and rear ends of the pressing rod 14, and a pressing cylinder seat 12 is installed on the two pressing cylinders 56, and a traction roller bearing seat 19 is installed on the front and rear ends of the right side of the connecting frame 11, and a traction cylinder 20 is installed on the top of the two traction roller bearing seats 19, and two cylinder pressing plates 21 are installed on the bottom of the two traction cylinders 20, and the upper two cylinder pressing plates 21 are respectively fixedly connected to the front and rear ends of the traction felt pressing roller 23, and the lower two cylinder pressing plates 21 are respectively fixedly connected with the front and rear ends of the traction felt press 22, a servo motor 24 and a reducer 25 are installed on the rear side of the connecting frame 11, the servo motor 24 is fixedly connected to the rear end of the traction felt press roller 23, the servo motor 24 is connected to the reducer 25, a convex key type air shaft 17 is arranged at the lower left part of the clamping rod 14, a rotating wheel 16 is installed at the bottom of one end of the convex key type air shaft 17, the rotating wheel 16 is rotatably connected to the connecting plate 15, the other end of the convex key type air shaft 17 is rotatably connected to the front side of the air roller motor frame 18, a winding hanger cross beam 9 is arranged on the left side of the supporting cross frame 1, and a winding hanger cross beam fixing plate 10 is arranged on the front and rear sides of the winding hanger cross beam 9, and the two winding hanger cross beam fixing plates 10 shown are fixedly connected to the front and rear ends of the winding hanger cross beam 9.

[0024] An upper stainless steel wind hood 47 is installed on the upper part of the outer wall of the two screw rods 38, and a lower stainless steel wind hood 48 is installed on the bottom of the two upper stainless steel wind hoods 47. The bottoms of the two lower stainless steel wind hoods 48 are evenly connected to multiple fans 49, and an electric box 32 is installed on the bottom of the two screw gearboxes 33. A computer operating system chassis display screen 35 is installed on the upper part of the two electric boxes 32, and a computer operating box rocker arm 36 is installed on the lower part of the two electric boxes 32.

[0025] An extruder frame 31 is installed on the rear side of the two electric boxes 32, an extruder Y-axis slide rail chassis 29 is provided at the bottom of the two extruder frames 31, an extruder X-axis slide rail chassis 26 is provided at the bottom of the two extruder frames 31, frame casters 46 are installed at the four corners of the bottom of the two extruder frames 31, and a plurality of frame casters 46 are slidably connected to the extruder Y-axis slide rail chassis 29, a frame chassis guide block 30 is installed at the rear end of the two extruder Y-axis slide rail chassis 29, and slide rails 27 are provided on the front and rear sides of the top of the two extruder X-axis slide rail chassis 26, and the two slide rails 27 have slide-connected pulleys 28;

[0026] The materials are fed through two hoppers 43, and the barrel inlet baffle 44 can control the flow of materials into the barrel inlet 45. During production, the baffle is opened, and the materials enter the screw 38 under the action of gravity. The inner rotating rod 40 in the screw 38 is driven to rotate by the screw gearbox 33, and the threaded stirring blade 41 rotates accordingly to transport the materials forward. During the transportation process of the screw 38, the materials undergo three stages: compaction, melting, and homogenization. Through the shearing, extrusion and friction of the screw, the materials are heated and plasticized to form molten materials with good fluidity, and the upper stainless steel wind hood 47, the lower stainless steel wind hood 48 and the fan 49 on the outer wall of the screw 38 form a temperature control system. The fan 49 blows air into the air hood to take away the excess heat on the surface of the screw 38, ensuring that the material is at a suitable processing temperature in the screw 38 to avoid affecting the plasticization quality of the material due to excessively high or low temperature. The plasticized material is guided from the rear end of the screw 38 through the through cylinder 37 and the screw gearbox 33, and is transmitted to the die 55 by the screw die connecting flange nut 50, the screw die connecting flange 51 and the die flange transition elbow heating plate 52 at the front end of the screw 38. The die flange transition elbow heating plate 52 can heat the material to maintain its fluidity. The die adjusting screw 54 and the die support frame 53 can accurately adjust the position and angle of the die 55 to control the thickness, width and shape of the extruded material, ensure that the extruded material is evenly covered on the outer surface of the lower grain roll 65, and provide a stable foundation for subsequent composite processes. Two different materials, TPE material and the company's physically modified formula pellets, are extruded through two die heads 55. Driven by gravity and the rotation of the lower pattern roller 65, the two materials are laminated and superimposed to complete the double-layer co-extrusion composite process. The lower pattern roller 65 is driven by a servo motor 80, and the power is transmitted through the thick spur gear 82 and the helical gear reducer 81 to achieve stable rotation. The upper pattern roller 68 cooperates with the lower pattern roller 65, and the laminated pattern mold 67 on the bearing seat 66 is used to emboss the composite material. The operator uses the components of the corrugated hand wheel 73 on the worm reducer 72, the pattern roller adjustment block screw 75, the pattern roller adjustment block screw fixing block 74 and the pattern roller adjustment block 76 to accurately adjust the spacing and pressure between the upper pattern roller 68 and the lower pattern roller 65, so that the pattern is clearly and evenly imprinted on the surface of the foot pad, giving the product a specific appearance and texture. The guide roller 64 assists in supporting the lower pattern roller 65 to ensure smooth material transmission. The telescopic roller 2 on the supporting cross frame 1 supports and guides the composite embossed foot pad. The traction roller bearing seat 19, traction cylinder 20, cylinder pressure plate 21, traction felt roller 23 and traction felt 22 on the connecting frame 11 form a traction device. The servo motor 24 drives the traction felt roller 23 to rotate through the reducer 25, and the traction cylinder 20 controls the traction felt 22 to press the foot pad to ensure that the foot pad is pulled and transported to the winding and cutting assembly 13 with stable tension and speed. After the foot pad is transported to the winding and cutting assembly 13, the pressing rod 14 presses the foot pad on the convex key type air shaft 17 under the action of the pressing cylinder 56 and the pressing cylinder seat 12.The key-type air shaft 17 is rotated through the rotating wheel 16, the connecting plate 15, and the air roller motor frame 18 to complete the winding of the foot pad. After reaching the set length, the winding and cutting assembly 13 is cut to separate the finished foot pad. The winding hanger crossbeam 9 and the winding hanger crossbeam fixing plate 10 provide stable support for the winding device. The control system is integrated in the two electrical boxes 32, and the computer operating system chassis display screen 35 and the computer operating box rocker arm 36 are convenient for operators to set production parameters such as screw speed, temperature, traction speed, and monitor the operating status of the equipment. The electrical box 32 collects the operating data of each component in real time through sensors, and automatically adjusts the screw speed, heating temperature, and traction speed to ensure stable operation of the production line and ensure product quality consistency. The extruder frame 31 and the extruder Y-axis provide stable support for the screw components, and are convenient for the installation, commissioning and maintenance of the equipment.

[0027] The front and rear ends of the plurality of guide rollers 64 are detachably connected to the inner sides of the corresponding composite frame plates 59, and the front and rear ends of the guide rollers 64 are detachably connected to the inner sides of the composite frame plates 59, so as to guide the transmission direction of the suede foot pad material on the production line, ensure that the material moves along a predetermined path, and ensure the stability and accuracy of the production process. The two composite frame plates 59 are fixedly connected to the front and rear ends of the top of the composite base frame 61, respectively. A composite base frame upper sealing plate 1 62 is installed on the top of the composite base frame 61, and a composite base frame upper sealing plate 2 63 is installed on the rear side of the top of the composite base frame 61. The composite base frame upper sealing plate 1 62 and the composite base frame upper sealing plate 2 63 seal and protect the top of the composite base frame 61 to prevent debris from entering and affecting production, and also help to maintain the stability of the internal structure. Composite base frame front and rear doors 57 are installed on the front and rear sides of the composite base frame 61, composite base frame left and right doors 60 are installed on the left and right sides of the composite base frame 61, and foot cup 2 58 is installed on the four corners of the bottom of the composite base frame 61. A plurality of vertical frames 3 are installed at the bottom right side of the supporting horizontal frame 1. The plurality of vertical frames 3 are fixedly connected to the right side of the winding frame 2 5. A winding frame connecting plate 6 is installed at the right side of the winding frame 2 5. A plurality of foot cups 1 7 are installed equidistantly at the bottom of the winding frame 2 5. A winding frame 1 4 is installed at the rear side of the winding frame connecting plate 6. The winding frame connecting plate 6 connects the winding frame 1 4 and the winding frame 2 5 so that the two can work together to complete the winding work after the suede foot pad is compounded. The winding frame 1 4 and the winding frame 2 5 rotate under the drive of the power device to realize the winding of the compounded suede foot pad material. The outer sleeves of the two screw rods 38 are equidistantly provided with a plurality of inner stop sleeves 39. Two mounting sleeves 42 are installed on the two screw rods 38. The two screw gearboxes 33 and the two belt covers 34 are installed on the top rear side of the corresponding electric box 32.

[0028] In the present invention, the material is fed through two hoppers 43, and the barrel feed port baffle 44 can control the flow rate of the material entering the barrel feed port 45. During production, the baffle is opened, and the material enters the screw 38 under the action of gravity, and the inner rotating rod 40 in the screw 38 is driven to rotate through the screw gearbox 33, and the threaded stirring blade 41 rotates accordingly to transport the material forward. During the transportation process of the screw 38, the material undergoes three stages: compaction, melting, and homogenization. Through the shearing, extrusion and friction of the screw, the material is heated and plasticized to form a molten material with good fluidity, and the upper stainless steel wind hood 47, the lower stainless steel wind hood 48 and the fan 49 on the outer wall of the screw 38 form a temperature control system. The fan 49 blows air into the air hood to take away the excess heat on the surface of the screw 38, ensuring that the material is at a suitable processing temperature in the screw 38 to avoid affecting the plasticization quality of the material due to excessively high or low temperature. The plasticized material is guided from the rear end of the screw 38 through the through cylinder 37 and the screw gearbox 33, and is transmitted to the die 55 by the screw die connecting flange nut 50, the screw die connecting flange 51 and the die flange transition elbow heating plate 52 at the front end of the screw 38. The die flange transition elbow heating plate 52 can heat the material to maintain its fluidity. The die adjusting screw 54 and the die support frame 53 can accurately adjust the position and angle of the die 55 to control the thickness, width and shape of the extruded material, ensure that the extruded material is evenly covered on the outer surface of the lower grain roll 65, and provide a stable foundation for subsequent composite processes. Two different materials, TPE material and the company's physically modified formula pellets, are extruded through two die heads 55. Driven by gravity and the rotation of the lower pattern roller 65, the two materials are laminated and superimposed to complete the double-layer co-extrusion composite process. The lower pattern roller 65 is driven by a servo motor 80, and the power is transmitted through the thick spur gear 82 and the helical gear reducer 81 to achieve stable rotation. The upper pattern roller 68 cooperates with the lower pattern roller 65, and the laminated pattern mold 67 on the bearing seat 66 is used to emboss the composite material. The operator uses the components of the corrugated hand wheel 73 on the worm reducer 72, the pattern roller adjustment block screw 75, the pattern roller adjustment block screw fixing block 74 and the pattern roller adjustment block 76 to accurately adjust the spacing and pressure between the upper pattern roller 68 and the lower pattern roller 65, so that the pattern is clearly and evenly imprinted on the surface of the foot pad, giving the product a specific appearance and texture. The guide roller 64 assists in supporting the lower pattern roller 65 to ensure smooth material transmission. The telescopic roller 2 on the supporting cross frame 1 supports and guides the composite embossed foot pad. The traction roller bearing seat 19, traction cylinder 20, cylinder pressure plate 21, traction felt press roller 23 and traction felt press 22 on the connecting frame 11 form a traction device. The servo motor 24 drives the traction felt press roller 23 to rotate through the reducer 25, and the traction cylinder 20 controls the traction felt press 22 to press the foot pad, ensuring that the foot pad is traction-conveyed to the winding and cutting assembly 13 at a stable tension and speed.After the foot pad is delivered to the winding and cutting assembly 13, the clamping rod 14, under the action of the clamping cylinder 56 and the clamping cylinder seat 12, presses the foot pad onto the keyed air shaft 17. The keyed air shaft 17 rotates in coordination with the rotating wheel 16, the connecting plate 15, and the air roller motor frame 18 to complete the winding of the foot pad. After reaching the set length, the winding and cutting assembly 13 cuts and separates the finished foot pad. The winding hanger crossbeam 9 and the winding hanger crossbeam fixing plate 10 provide stable support for the winding device. The control system is integrated in the two electrical boxes 32, and the computer operating system chassis display screen 35 and the computer operating box rocker arm 36 facilitate the operator to set production parameters such as screw speed, temperature, traction speed, and monitor the operating status of the equipment. The electrical box 32 collects the operating data of each component in real time through sensors, automatically adjusts the screw speed, heating temperature, and traction speed to ensure stable operation of the production line and consistency of product quality. It integrates the functions of material transportation, extrusion, compounding, embossing, traction, and winding into one production line, reducing manual intervention in the intermediate links and improving the continuity and automation of production.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-layer co-extrusion suede foot pad composite production line, comprising two screws (38), two hoppers (43), two electrical boxes (32), two die heads (55), a composite frame plate (59), a lower graining roller (65), an upper graining roller (68) and a bearing seat (66), characterized in that: The top rear sides of the two screws (38) are both connected to a barrel feed port (45), the tops of the two barrel feed ports (45) are both provided with a barrel feed port baffle (44), the tops of the two barrel feed ports (45) are both connected to a hopper (43), the rear ends of the two screws (38) are both connected to a through barrel (37), the two through barrels (37) are both connected to the front side of a screw gearbox (33), the rear sides of the two screw gearboxes (33) are both provided with a belt cover (34), the interiors of the two screws (38) are both provided with an inner rotating rod (40), the two inner rotating rods (40) are both provided with a threaded stirring blade (41), the front ends of the two screws (38) are both provided with a screw die head connecting flange nut (50), and the screw die head connecting flange nut (50) is provided with a screw die head connecting flange nut (50). ), the front sides of the two screw die connecting flange nuts (50) are both equipped with screw die connecting flanges (51), the front sides of the two screw die connecting flanges (51) are both equipped with die flange transition elbow heating plates (52), the two die flange transition elbow heating plates (52) are both in contact with a die (55) on one side close to each other, the front and rear sides of the bottom of the two die heads (55) are both equipped with die adjusting screws (54), the two die adjusting screws (54) are both equipped with die support frames (53), the two die heads (55) are both in contact with the outer surface of a lower pattern stick (65), the lower pattern stick (65) is arranged at the lower part of a bearing seat (66), and an overlay pattern mold (67) is arranged on the bearing seat (66).

2. A double-layer co-extrusion suede foot pad composite production line according to claim 1, characterized in that: The upper grain roll (68) is arranged on the upper part of the superimposed pattern mold (67), and a plurality of guide rollers (64) are equidistantly arranged at the lower part of the lower grain roll (65). The lower grain roll (65), the bearing seat (66) and the front and rear ends of the lower grain roll (65) are all installed with composite rod motor plates (71), and the left and right sides of the plurality of composite rod motor plates (71) are respectively installed with a wall panel support rod 1 (69) and a wall panel support rod 2 (70), the front and rear ends of the upper grain roll (68) are all installed with a worm reducer (72), the rear end of the bearing seat (66) is installed with a servo motor 2 (80), the rear end of the lower grain roll (65) is installed with a thick spur gear (82), and the thick spur gear (82) is installed with an inclined A gear reducer (81), the two worm reducers (72) are both provided with a corrugated hand wheel (73), the bottoms of the two worm reducers (72) are both installed with a mesh roller adjustment block screw (75), the two mesh roller adjustment block screw fixing blocks (74) are both threadedly installed on the two mesh roller adjustment block screws (75), the bottoms of the two mesh roller adjustment block screws (75) are threadedly installed with a mesh roller adjustment block (76), the two mesh roller adjustment blocks (76) are both installed with an adjustment bearing seat (77), the front and rear ends of the bearing seat (66) are both installed with a bearing seat slide rail pressure block (78), and the sides of the plurality of bearing seat slide rail pressure blocks (78) are all installed with a bearing seat pressure roller fixing pressure block (79).

3. A double-layer co-extrusion suede foot pad composite production line according to claim 2, characterized in that: A supporting cross frame (1) is mounted on the upper graining roller (68), telescopic rollers (2) are equidistantly mounted on the top and left side of the supporting cross frame (1), a connecting frame (11) is mounted on the left bottom of the supporting cross frame (1), a winding and cutting assembly (13) is mounted on the left side of the connecting frame (11), a clamping rod (14) is disposed at the bottom of the winding and cutting assembly (13), and clamping cylinders (56) are mounted at the bottom of the front and rear ends of the clamping rod (14), and the two A pressing cylinder seat (12) is installed on each of the pressing cylinders (56), a traction roller bearing seat (19) is installed on the front and rear ends of the right side of the connecting frame (11), a traction cylinder (20) is installed on the top of each of the two traction roller bearing seats (19), and two cylinder pressure plates (21) are installed on the bottom of each of the two traction cylinders (20), the upper two cylinder pressure plates (21) are respectively fixedly connected to the front and rear ends of the traction felt press roller (23), and the lower two cylinder pressure plates (21) are respectively fixedly connected to the front and rear ends of the traction felt press roller (23). The pressing plate (21) is fixedly connected to the front and rear ends of the traction felt press (22) respectively. A servo motor (24) and a reducer (25) are installed on the rear side of the connecting frame (11). The servo motor (24) is fixedly connected to the rear end of the traction felt press roller (23). The servo motor (24) is connected to the reducer (25). A convex key type air shaft (17) is arranged at the lower left part of the pressing rod (14). The bottom of one end of the convex key type air shaft (17) is provided with a A rotating wheel (16) is provided, and the rotating wheel (16) is rotatably connected to the connecting plate (15); the other end of the convex key type air shaft (17) is rotatably connected to the front side of the air roller motor frame (18); a winding hanger beam (9) is provided on the left side of the supporting cross frame (1); and winding hanger beam fixing plates (10) are provided on the front and rear sides of the winding hanger beam (9); the two winding hanger beam fixing plates (10) are fixedly connected to the front and rear ends of the winding hanger beam (9).

4. The double-layer co-extrusion suede foot pad composite production line according to claim 1 is characterized by: An upper stainless steel wind hood (47) is installed on the upper part of the outer wall of the two screw rods (38), a lower stainless steel wind hood (48) is installed on the bottom of the two upper stainless steel wind hoods (47), and a plurality of fans (49) are connected to the bottom of the two lower stainless steel wind hoods (48) at equal distances. An electric box (32) is installed on the bottom of the two screw gearboxes (33), a computer operating system chassis display screen (35) is installed on the upper part of the two electric boxes (32), and a computer operating box rocker arm (36) is installed on the lower part of the two electric boxes (32).

5. The double-layer co-extrusion suede foot pad composite production line according to claim 4 is characterized in that: An extruder frame (31) is installed on the rear side of the two electrical boxes (32), an extruder Y-axis slide rail chassis (29) is arranged at the bottom of the two extruder frames (31), an extruder X-axis slide rail chassis (26) is arranged at the bottom of the two extruder frames (31), frame casters (46) are installed at the four corners of the bottom of the two extruder frames (31), and a plurality of frame casters (46) are slidably connected to the extruder Y-axis slide rail chassis (29), a frame chassis guide block (30) is installed at the rear end of the two extruder Y-axis slide rail chassis (29), and slide rails (27) are arranged on the front and rear sides of the top of the two extruder X-axis slide rail chassis (26), and the two slide rails (27) have slidingly connected pulleys (28).

6. The double-layer co-extrusion suede foot pad composite production line according to claim 2 is characterized by: The front and rear ends of the plurality of guide rollers (64) are detachably connected to the inner sides of the corresponding composite frame plates (59), and the two composite frame plates (59) are fixedly connected to the front and rear ends of the top of the composite base frame (61), respectively; a composite base frame upper cover plate 1 (62) is installed on the top of the composite base frame (61), and a composite base frame upper cover plate 2 (63) is installed on the rear side of the top of the composite base frame (61); composite base frame front and rear doors (57) are installed on the front and rear sides of the composite base frame (61), and composite base frame left and right doors (60) are installed on the left and right sides of the composite base frame (61); and two foot cups (58) are installed at the four corners of the bottom of the composite base frame (61).

7. The double-layer co-extrusion suede foot pad composite production line according to claim 3 is characterized by: A plurality of vertical frames (3) are installed at the bottom right side of the supporting horizontal frame (1), and the plurality of vertical frames (3) are fixedly connected to the right side of the winding frame 2 (5). A winding frame connecting plate (6) is installed at the right side of the winding frame 2 (5), and a plurality of foot cups 1 (7) are installed at equal intervals at the bottom of the winding frame 2 (5), and a winding frame 1 (4) is installed at the rear side of the winding frame connecting plate (6).

8. The double-layer co-extrusion suede foot pad composite production line according to claim 1 is characterized by: The outer parts of the two screw rods (38) are equidistantly sleeved with a plurality of inner stop sleeves (39), and the two screw rods (38) are both provided with two mounting sleeve frames (42).

9. The double-layer co-extrusion suede foot pad composite production line according to claim 1, characterized in that: The two screw gearboxes (33) and the two belt covers (34) are installed on the top rear side of the corresponding electric box (32).

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