Pultrusion equipment and extrusion molding method for thermoplastic composite profile
By introducing guide devices, telescopic cylinders and adjustment mechanisms into the pultruding equipment, flexible adjustment of the position of the pultruding roller and the spacing of the traction roller are achieved, which solves the problem of poor extrusion of the equipment on different sizes of profiles and improves the equipment's Applicability and profile forming quality.
Patent Information
- Application Number
- CN202411293138.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2024-12-31
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When existing pultruding equipment deals with fiberglass fiber profiles of different sizes and thicknesses, the pultruding roller position is fixed and cannot be flexibly adjusted, resulting in insufficient extrusion pressure, affecting the applicability and molding quality of the equipment.
A pultrusion forming device including a guide device, a telescopic cylinder, a downward pressing mechanism, an adjustment mechanism and a protective mechanism are designed. The upper pultrusion roller and a threaded rod are driven by a motor to flexibly adjust the pulling roller and a pulling roller. spacing and use springs to reduce hard contact of profiles.
Accurate extrusion and traction of profiles of different diameters or thicknesses is achieved, improving the flexibility and applicability of the equipment, ensuring the stability and protection of the profile, and avoiding deformation or damage.
Smart Images
Figure CN119217753A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of pultrusion molding, in particular to a pultrusion molding device and an extrusion molding method for a thermoplastic composite profile. Background Art
[0002] Thermoplastic composite profiles are a type of material that is made of thermoplastic resins and reinforcing materials (such as glass fibers, carbon fibers, etc.). They have the advantages of light weight, high strength, corrosion resistance, and easy processing and molding. They are widely used in aerospace, automotive, construction and other fields. Thermoplastic resins can soften and flow after heating, and harden after cooling, so these materials can be repeatedly heated and cooled without significantly changing their chemical properties. FRP fiber, commonly known as glass fiber, is a fiber made of glass through a high-temperature wire drawing process. It has the advantages of high strength, corrosion resistance, high temperature resistance, and good insulation properties. FRP fiber is usually used as a reinforcing material in composite materials. After combining with resin, it forms FRP, which is used to manufacture various structural parts and decorative materials. When processing thermoplastic composite profiles, pultrusion equipment is usually used to fully combine glass fiber with thermoplastic resin to form a composite profile with excellent mechanical properties and environmental resistance. Pultrusion equipment is a mechanical device used to manufacture continuous composite profiles. It is a process in which a continuous fiber bundle impregnated with resin, such as glass fiber, is pulled into a desired shape through a molding die and solidified. The equipment usually includes a fiber unwinding system, an impregnation system, a molding die, and a heating and curing system. Pultrusion can produce high-performance composite profiles with complex shapes and stable dimensions. At the same time, it can achieve efficient, high-quality, and low-cost production of thermoplastic composite profiles, which can meet diverse market needs.
[0003] In the prior art, after the FRP fibers and the resin are fused, when the FRP fibers and the resin are pultruded through a pultrusion molding equipment, it is usually necessary to heat and solidify the FRP fibers fused with the resin, and then pultrude them. Due to different production requirements, the FRP fibers may need to be pultruded into profiles of different sizes, and the pultrusion rollers of the pultrusion molding equipment are generally fixed, which will make it impossible to adjust the position of the pultrusion rollers well during the molding process, and thus the pultrusion rollers cannot flexibly pultrude profiles of different diameters or thicknesses, thereby failing to well guarantee the extrusion force of the pultrusion rollers on the profiles, and is not conducive to improving the applicability and flexibility of pultrusion molding. Therefore, in order to solve the above problems, a pultrusion molding equipment and an extrusion molding method for thermoplastic composite profiles are proposed. Summary of the invention
[0004] The object of the present invention is to provide a pultrusion molding device and an extrusion molding method for a thermoplastic composite profile, so as to solve the problem mentioned in the above background technology that in different production needs, it may be necessary to pultrude glass fiber into profiles of different sizes, and the pultrusion roller of the pultrusion molding equipment is generally fixed, which will make it impossible to adjust the position of the pultrusion roller well during the molding process, and then the pultrusion roller cannot flexibly pultrude profiles of different diameters or thicknesses, thereby failing to well guarantee the extrusion force of the pultrusion roller on the profile, and is not conducive to improving the applicability and flexibility of pultrusion molding.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pultrusion molding device and an extrusion molding method for thermoplastic composite profiles, comprising a frame, the frame comprising a yarn frame, a processing table is arranged on one side of the yarn frame, an immersion tank is arranged on the upper surface of the processing table, a guide roller is movably connected to the inner side of the immersion tank, a guide device is fixedly connected to the upper surface of the yarn frame, a mold is arranged on the upper surface of the yarn frame, a first support frame is fixedly connected to the upper surface of the yarn frame, a lower pultrusion roller is movably connected to the inner side of the first support frame, an upper pultrusion roller is arranged on the inner side of the first support frame, a second support frame is fixedly connected to the upper surface of the yarn frame, a traction roller is arranged on the inner side of the second support frame, a third support frame is fixedly connected to the upper surface of the yarn frame, a telescopic cylinder is fixedly installed on the top end of the third support frame, and a cutting knife is fixedly connected to the output end of the telescopic cylinder;
[0006] A pressing mechanism is provided on the inner side of the first support frame, and the pressing mechanism includes a threaded rod, which is movably connected to the inner side of the first support frame, and the surface of the threaded rod is threadedly connected to the first connecting block, and the surface of the first connecting block is fixedly connected to the first connecting frame, and the upper pultrusion roller is movable on the inner side of the first connecting frame.
[0007] Preferably, the pressing mechanism also includes a fixed block, which is fixedly connected to the top of the first support frame, and a rotating rod is movably connected to the inner side of the fixed block, and a first conical tooth is fixedly connected to the surface of the rotating rod, and a first motor is fixedly installed on the surface of the fixed block, and the top of the threaded rod is fixedly connected to the second conical tooth, and the inner surface of the first support frame is fixedly connected to the support block.
[0008] Preferably, the threaded rods are movably connected to the inner side of the first support frame in two groups, and the first connecting blocks are fixedly connected to both ends of the first connecting frame in two groups.
[0009] Preferably, the rotating rod is fixedly connected to the output end of the first motor, the first conical teeth are in two groups and fixedly connected to the rotating rod, and the threaded rod is movably connected to the support block.
[0010] Preferably, an adjusting mechanism is provided on the inner side of the second supporting frame, the adjusting mechanism comprises a screw, the screw is movably connected to the inner side of the second supporting frame, the surface of the screw is threadedly connected to a moving block, the surface of the moving block is movably connected to a movable rod, the surface of the movable rod is movably connected to the second connecting frame, the traction roller is movably connected to the inner side of the second connecting frame, a driving motor is installed on the surface of the second connecting frame, the output end of the driving motor is fixedly connected to the traction roller, a movable groove is opened on the inner side of the second supporting frame, a limiting rod is fixedly connected to the inner wall of the movable groove, the surface of the limiting rod is movably connected to the second connecting block, and the surface of the screw is movably connected to a transmission belt.
[0011] Preferably, one end of the movable rod is movably connected to the moving block via a rotating shaft, the other end of the movable rod is movably connected to the second connecting frame via a rotating shaft, and the second connecting block is movably located inside the movable groove.
[0012] Preferably, the second connecting block is fixedly connected to the second connecting frame, one end of the transmission belt is movably connected to a rotating rod via a pulley, and the other end of the transmission belt is movably connected to a screw rod via a pulley.
[0013] Preferably, a protective mechanism is provided on the inner side of the second support frame, and the protective mechanism includes a connecting plate, and the connecting plate is fixedly connected to the inner surface of the second support frame, and the inner side of the guide device is movably connected with a connecting rod, and the surface of the connecting rod is fixedly connected to a third connecting block, and the surface of the third connecting block is fixedly connected to a spring.
[0014] Preferably, the connecting rod is fixedly connected to the second connecting frame, one end of the spring is fixedly connected to the connecting plate, and the other end of the spring is fixedly connected to the third connecting block.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] 1. The first motor drives the rotating rod to rotate, and the rotation of the first conical tooth can make the second conical tooth drive the threaded rod to rotate, and then the first connecting block will drive the upper pultrusion roller to move under the action of the threaded rod, so that in the pultrusion process, the position of the upper pultrusion roller can be flexibly adjusted according to the size requirements of the processing, which is convenient for pultrusion of profiles of different lengths or thicknesses, and can improve the flexibility and applicability of the use of pultrusion equipment, and can also ensure the extrusion force of the lower pultrusion roller and the upper pultrusion roller on the profile, so as to achieve precise extrusion of profiles of different sizes.
[0017] 2. The movement of the screw can drive the moving block to move, and the movement of the movable rod can cause the second connecting frame to move vertically, so that the spacing between the two sets of traction rollers can be changed. During the forming process, the spacing of the traction rollers can be adjusted to adapt to profiles of different diameters or thicknesses, which can meet the traction requirements of profiles of different sizes, thereby ensuring the stability and accuracy of the profiles during the traction process, and avoiding deformation or damage of the profiles.
[0018] 3. When the second connecting frame is adjusted, the movement of the second connecting frame can make the connecting rod move on the inner side of the connecting plate, and then the spring will be deformed. Through the movement of the connecting rod in the connecting plate, the adjustment of the second connecting frame can be made more stable, thereby ensuring the stability of the traction of the profile by the traction roller. Through the elastic properties of the spring, when the spacing of the traction roller is adjusted, the force of the traction roller can gradually act on the profile, which can reduce the hard contact between the traction roller and the profile, and can avoid damage to the profile, thereby protecting the profile. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic front view of the structure of the present invention;
[0020] Figure 2 It is a schematic rear view of the structure of the present invention;
[0021] Figure 3 It is a schematic cross-sectional front view of the structure of the present invention;
[0022] Figure 4 It is a schematic side cross-sectional view of the structure of the transmission belt and the moving block of the present invention;
[0023] Figure 5 It is a schematic side cross-sectional view of the structure of the rotating rod and the first connecting block of the present invention;
[0024] Figure 6 For the present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle;
[0025] Figure 7 It is a schematic side cross-sectional view of the structure of the screw rod and the second connecting frame of the present invention;
[0026] Figure 8 For the present invention Figure 5 Schematic diagram of the enlarged structure at point B in the middle.
[0027] In the figure: 1, yarn frame; 11, processing table; 12, impregnation tank; 13, guide roller; 14, guide device; 15, mold; 16, first support frame; 17, lower pultrusion roller; 18, upper pultrusion roller; 19, second support frame; 110, traction roller; 111, third support frame; 112, telescopic cylinder; 113, cutting knife; 2, fixed block; 21, rotating rod; 22, first conical tooth; 23, first motor; 24, threaded rod; 25, second conical tooth; 26, support block; 27, first connecting block; 28, first connecting frame; 3, screw rod; 31, moving block; 32, movable rod; 33, second connecting frame; 34, movable groove; 35, limit rod; 36, second connecting block; 37, transmission belt; 4, connecting plate; 41, connecting rod; 42, third connecting block; 43, spring. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in 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 creative work are within the scope of protection of the present invention.
[0029] See also Figure 1-8 , an embodiment provided by the present invention:
[0030] The mold 15, telescopic cylinder 112 and first motor 23 used in the present application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described in detail here.
[0031] A pultrusion molding device and extrusion molding method for thermoplastic composite profiles, including a frame, the frame including a creel 1, a processing table 11 is arranged on one side of the creel 1, an immersion tank 12 is arranged on the upper surface of the processing table 11, a guide roller 13 is movably connected to the inner side of the immersion tank 12, a guide device 14 is fixedly connected to the upper surface of the creel 1, a mold 15 is arranged on the upper surface of the creel 1, a first support frame 16 is fixedly connected to the upper surface of the creel 1, a lower pultrusion roller 17 is movably connected to the inner side of the first support frame 16, an upper pultrusion roller 18 is arranged on the inner side of the first support frame 16, a second support frame 19 is fixedly connected to the upper surface of the creel 1, a traction roller 110 is arranged on the inner side of the second support frame 19, a third support frame 111 is fixedly connected to the upper surface of the creel 1, a telescopic cylinder 112 is fixedly installed on the top of the third support frame 111, and the output of the telescopic cylinder 112 The end is fixedly connected with a cutting knife 113. Through the setting of the guide roller 13, the glass fiber can enter the impregnation tank 12, and the glass fiber can be impregnated with resin. Through the setting of the guide device 14, the glass fiber fused with resin can be guided, so that the glass fiber can enter the mold 15 at a suitable angle. The mold 15 adopts an infrared heating method. Through the setting of the mold 15, the glass fiber and the resin can be heated and cured. After curing, a composite profile is formed and will be pulled out under the traction of the traction roller 110. When the profile passes through the lower pultrusion roller 17 and the upper pultrusion roller 18, it will be squeezed, so that the profile can be formed. The extension of the telescopic cylinder 112 drives the cutting knife 113 to press down, and the formed profile can be cut by the cutting knife 113 to achieve cutting into a required length.
[0032] A pressing mechanism is provided on the inner side of the first support frame 16, and the pressing mechanism includes a threaded rod 24, which is movably connected to the inner side of the first support frame 16, and a first connecting block 27 is threadedly connected to the surface of the threaded rod 24, and a first connecting frame 28 is fixedly connected to the surface of the first connecting block 27. The upper pultrusion roller 18 is movable on the inner side of the first connecting frame 28, and the first connecting block 27 can move on the surface of the threaded rod 24 through the rotation of the threaded rod 24, and then the upper pultrusion roller 18 can be lifted and lowered under the action of the first connecting frame 28, so that the spacing between the lower pultrusion roller 17 and the upper pultrusion roller 18 can be changed, so that the lower pultrusion roller 17 and the upper pultrusion roller 18 can accurately extrude profiles of different diameters or sizes, and the molding quality and effect of the profiles can be guaranteed.
[0033] Furthermore, the pressing mechanism also includes a fixed block 2, which is fixedly connected to the top of the first support frame 16, and a rotating rod 21 is movably connected to the inner side of the fixed block 2. The surface of the rotating rod 21 is fixedly connected to a first conical tooth 22, and a first motor 23 is fixedly installed on the surface of the fixed block 2. The top of the threaded rod 24 is fixedly connected to a second conical tooth 25, and the inner surface of the first support frame 16 is fixedly connected to a support block 26. Through the arrangement of the first conical tooth 22 and the second conical tooth 25, when the rotating rod 21 drives the first conical tooth 22 to rotate, the second conical tooth 25 can drive the threaded rod 24 to rotate accordingly, and then the rotation of the two groups of threaded rods 24 can make the first connecting block 27 drive the first connecting frame 28 to move vertically, thereby facilitating the lifting and lowering of the upper pultrusion roller 18.
[0034] Furthermore, the threaded rod 24 is movably connected to the inner side of the first support frame 16 in two groups, and the first connecting blocks 27 are fixedly connected to the two ends of the first connecting frame 28 in two groups. Through the setting of the first connecting blocks 27, when the threaded rod 24 rotates, the first connecting blocks 27 can move vertically on the surface of the threaded rod 24, and then the first connecting frame 28 can drive the upper pultrusion roller 18 to move accordingly, so that the lower pultrusion roller 17 and the upper pultrusion roller 18 can flexibly adapt to the extrusion requirements of different thicknesses or sizes, which can improve the flexibility of pultrusion molding.
[0035] Furthermore, the rotating rod 21 is fixedly connected to the output end of the first motor 23, the first conical teeth 22 are fixedly connected to the rotating rod 21 in two groups, and the threaded rod 24 is movably connected to the support block 26. The operation of the first motor 23 can drive the rotating rod 21 to rotate, and then the first conical teeth 22 rotate accordingly. By setting the second conical teeth 25, when the first conical teeth 22 rotate, the second conical teeth 25 can be driven under the action of the first conical teeth 22, so that the threaded rod 24 can be rotated, so as to achieve the purpose of adjusting the position of the upper pultrusion roller 18.
[0036] Furthermore, an adjustment mechanism is provided on the inner side of the second support frame 19, and the adjustment mechanism includes a screw rod 3, which is movably connected to the inner side of the second support frame 19, and a moving block 31 is threadedly connected to the surface of the screw rod 3, and a movable rod 32 is movably connected to the surface of the moving block 31, and a second connecting frame 33 is movably connected to the surface of the movable rod 32, and a second connecting frame 33 is movably connected to the surface of the movable rod 32, and a traction roller 110 is movably connected to the inner side of the second connecting frame 33, and a driving motor is installed on the surface of the second connecting frame 33, and the output end of the driving motor is fixedly connected to the traction roller 110. A movable groove 34 is provided, and the inner wall of the movable groove 34 is fixedly connected to a limiting rod 35. The surface of the limiting rod 35 is movably connected to a second connecting block 36. The surface of the screw rod 3 is movably connected to a transmission belt 37. The movable block 31 can be driven to move by the rotation of the screw rod 3, and then the movable rod 32 can drive the two groups of second connecting frames 33 to move in opposite directions, thereby ensuring that the traction roller 110 can contact profiles of different diameters or thicknesses, making it convenient to pull profiles of different diameters or thicknesses, and helping to ensure the stability of traction.
[0037] Furthermore, one end of the movable rod 32 is movably connected to the movable block 31 through a rotating shaft, and the other end of the movable rod 32 is movably connected to the second connecting frame 33 through a rotating shaft. The second connecting block 36 moves on the inner side of the movable groove 34. Through the setting of the second connecting block 36, when the second connecting frame 33 is adjusted, the second connecting block 36 will move on the inner side of the movable groove 34 and the surface of the limiting rod 35, thereby being able to limit the second connecting frame 33, and the stability of the adjustment of the second connecting frame 33 can be ensured.
[0038] Furthermore, the second connecting block 36 is fixedly connected to the second connecting frame 33, one end of the transmission belt 37 is movably connected to the rotating rod 21 through a pulley, and the other end of the transmission belt 37 is movably connected to the screw 3 through a pulley. Through the setting of the transmission belt 37, when the rotating rod 21 rotates under the action of the first motor 23, the transmission belt 37 can move under the action of the rotating rod 21 and can transmit the screw 3, thereby facilitating the synchronous adjustment of the spacing of the second connecting frame 33.
[0039] Furthermore, a protective mechanism is provided on the inner side of the second support frame 19, and the protective mechanism includes a connecting plate 4, which is fixedly connected to the inner surface of the second support frame 19, and a connecting rod 41 is movably connected to the inner side of the guide device 14, and a third connecting block 42 is fixedly connected to the surface of the connecting rod 41, and a spring 43 is fixedly connected to the surface of the third connecting block 42. When the connecting rod 41 moves on the inner side of the connecting plate 4, the spring 43 will be deformed. Through the setting of the spring 43, the force generated on the traction roller 110 can be alleviated, and the hard contact between the traction roller 110 and the profile can be reduced, thereby protecting the profile.
[0040] Furthermore, the connecting rod 41 is fixedly connected to the second connecting frame 33, one end of the spring 43 is fixedly connected to the connecting plate 4, and the other end of the spring 43 is fixedly connected to the third connecting block 42. By setting the connecting plate 4 and the connecting rod 41, when the second connecting frame 33 moves under the action of the movable rod 32, the connecting rod 41 can move on the inner side of the connecting plate 4, thereby achieving more stable adjustment of the second connecting frame 33, thereby also being able to more stably pull the profile.
[0041] Working principle: When in use, the first motor 23 is electrically connected by an external power supply, and the staff starts the first motor 23 by pressing the switch. The operation of the first motor 23 drives the rotating rod 21 to rotate, and the first conical teeth 22 rotate under the action of the rotating rod 21, and then the second conical teeth 25 rotate under the action of the first conical teeth 22 and drive the threaded rod 24 to rotate, and the first connecting block 27 moves on the surface of the threaded rod 24 under the action of the threaded rod 24, so that the first connecting frame 28 can drive the upper pultrusion roller 18 to move vertically under the action of the first connecting block 27, and the upper pultrusion roller 18 can be raised and lowered, so that the lower pultrusion roller 17 and the upper pultrusion roller 18 can pultrude profiles of different diameters or thicknesses;
[0042] When the rotating rod 21 rotates, the transmission belt 37 moves under the action of the rotating rod 21 and can drive the screw rod 3 to rotate. When the screw rod 3 rotates, the moving block 31 moves, and the movable rod 32 can move through the rotating shaft, and then the second connecting frame 33 moves accordingly under the action of the movable rod 32, and then the second connecting block 36 moves on the inner side of the movable groove 34 and the surface of the limit rod 35, so that the two groups of second connecting frames 33 can approach or move away from each other, so that the spacing between the two groups of traction rollers 110 changes, and profiles with different diameters or thicknesses can be pulled;
[0043] When the second connecting frame 33 moves under the action of the movable rod 32, the connecting rod 41 will move accordingly on the inner side of the connecting plate 4, so that the adjustment of the traction roller 110 can be more stable. At the same time, the spring 43 will be deformed. Through the elastic property of the spring 43, the force of the traction roller 110 can be gradually applied to the profile, so as to avoid excessive instantaneous pressure of the traction roller 110 on the profile during adjustment, thereby protecting the profile and reducing hard contact.
[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.
Claims
1. A pultrusion molding device for thermoplastic composite profiles, comprising a frame, the frame comprising a creel (1), a processing table (11) is arranged on one side of the creel (1), an immersion tank (12) is arranged on the upper surface of the processing table (11), a guide roller (13) is movably connected to the inner side of the immersion tank (12), a guide device (14) is fixedly connected to the upper surface of the creel (1), a mold (15) is arranged on the upper surface of the creel (1), a first support frame (16) is fixedly connected to the upper surface of the creel (1), and the first support frame The inner side of the first support frame (16) is movably connected to a lower pultrusion roller (17), the inner side of the first support frame (16) is provided with an upper pultrusion roller (18), the upper surface of the yarn frame (1) is fixedly connected to a second support frame (19), the inner side of the second support frame (19) is provided with a traction roller (110), the upper surface of the yarn frame (1) is fixedly connected to a third support frame (111), the top end of the third support frame (111) is fixedly installed with a telescopic cylinder (112), and the output end of the telescopic cylinder (112) is fixedly connected to a cutting knife (113); It is characterized in that A pressing mechanism is provided on the inner side of the first support frame (16), and the pressing mechanism comprises a threaded rod (24), the threaded rod (24) is movably connected to the inner side of the first support frame (16), the surface of the threaded rod (24) is threadedly connected to a first connecting block (27), the surface of the first connecting block (27) is fixedly connected to a first connecting frame (28), and the upper pultrusion roller (18) is movable on the inner side of the first connecting frame (28).
2. The pultrusion molding equipment of a thermoplastic composite profile according to claim 1, characterized in that: The pressing mechanism further comprises a fixed block (2), wherein the fixed block (2) is fixedly connected to the top end of the first support frame (16), a rotating rod (21) is movably connected to the inner side of the fixed block (2), a first conical tooth (22) is fixedly connected to the surface of the rotating rod (21), a first motor (23) is fixedly mounted on the surface of the fixed block (2), a second conical tooth (25) is fixedly connected to the top end of the threaded rod (24), and a support block (26) is fixedly connected to the inner surface of the first support frame (16).
3. The pultrusion molding equipment of a thermoplastic composite profile according to claim 2, characterized in that: The threaded rods (24) are movably connected to the inner side of the first support frame (16) in two groups, and the first connecting blocks (27) are fixedly connected to the two ends of the first connecting frame (28) in two groups.
4. The pultrusion molding equipment of a thermoplastic composite profile according to claim 2, characterized in that: The rotating rod (21) is fixedly connected to the output end of the first motor (23); the first conical teeth (22) are in two groups and fixedly connected to the rotating rod (21); and the threaded rod (24) is movably connected to the support block (26).
5. The pultrusion molding equipment of a thermoplastic composite profile according to claim 1, characterized in that: An adjustment mechanism is provided on the inner side of the second support frame (19), the adjustment mechanism comprising a screw rod (3), the screw rod (3) being movably connected to the inner side of the second support frame (19), a moving block (31) being threadedly connected to the surface of the screw rod (3), a moving rod (32) being movably connected to the surface of the moving block (31), a second connecting frame (33) being movably connected to the surface of the moving rod (32), a second connecting frame (33) being movably connected to the surface of the moving rod (32), a driving motor being installed on the surface of the second connecting frame (33), an output end of the driving motor being fixedly connected to the traction roller (110), a movable groove (34) being provided on the inner side of the second support frame (19), a limiting rod (35) being fixedly connected to the inner wall of the movable groove (34), a second connecting block (36) being movably connected to the surface of the limiting rod (35), a transmission belt (37) being movably connected to the surface of the screw rod (3).
6. The pultrusion molding equipment of a thermoplastic composite profile according to claim 5, characterized in that: One end of the movable rod (32) is movably connected to the moving block (31) via a rotating shaft, and the other end of the movable rod (32) is movably connected to the second connecting frame (33) via a rotating shaft, and the second connecting block (36) is movably located inside the movable groove (34).
7. The pultrusion molding equipment of a thermoplastic composite profile according to claim 5, characterized in that: The second connecting block (36) is fixedly connected to the second connecting frame (33); one end of the transmission belt (37) is movably connected to the rotating rod (21) via a pulley; and the other end of the transmission belt (37) is movably connected to the screw rod (3) via a pulley.
8. The pultrusion molding equipment of a thermoplastic composite profile according to claim 5, characterized in that: A protective mechanism is provided on the inner side of the second support frame (19), and the protective mechanism comprises a connecting plate (4), wherein the connecting plate (4) is fixedly connected to the inner surface of the second support frame (19), and a connecting rod (41) is movably connected to the inner side of the guide device (14), and a third connecting block (42) is fixedly connected to the surface of the connecting rod (41), and a spring (43) is fixedly connected to the surface of the third connecting block (42).
9. The pultrusion molding equipment of a thermoplastic composite profile according to claim 8, characterized in that: The connecting rod (41) is fixedly connected to the second connecting frame (33), one end of the spring (43) is fixedly connected to the connecting plate (4), and the other end of the spring (43) is fixedly connected to the third connecting block (42).
10. An extrusion molding method of a thermoplastic composite profile pultrusion molding device, characterized in that: The first conical teeth (22) are driven to rotate by the rotating rod (21), so that the second conical teeth (25) drive the threaded rod (24) to rotate, and then the first connecting block (27) drives the first connecting frame (28) to move vertically, so that the upper pultrusion roller (18) can be raised and lowered, so that the lower pultrusion roller (17) and the upper pultrusion roller (18) can extrude profiles of different diameters or thicknesses. The screw rod (3) is rotated to realize the movement of the moving block (31) and drive the movable rod (32) to move, so that the distance between the two groups of second connecting frames (33) is changed, so that the profiles of different diameters or thicknesses can be pulled by the pulling roller (110). The spring (43) can be deformed by the movement of the connecting rod (41) in the connecting plate (4), so that the force of the pulling roller (110) gradually acts on the profile, so as to protect the profile.