A high-efficiency light-curing device for pultrusion

Abstract

The present invention relates to the technical field of composite material processing equipment, and specifically to a high-efficiency light-curing device for pultrusion molding, which is used for scraping glue on fiber bundles that have passed through a dipping device before entering a UV curing machine. The device comprises a support panel and at least one scraper provided on the support panel, and the scraper is used for scraping off excess resin on the surface of the fiber bundle; a drainage channel is provided on the support panel, and the resin of the fiber bundle after being scraped off by the scraper will enter the drainage channel; the high-efficiency light-curing device also includes a delivery pump for conveying the resin in the drainage channel back to the resin box of the dipping device; the present invention realizes rapid changeover of fiber bundles of different diameters and precise control of surface resin through the dynamic adaptation design of a rotating multi-specification scraper and an elastic scraping ring, thereby solving the core problems that the existing fixed scraping structure cannot adapt to the diameter of the fiber bundle, the efficiency of changeover in multi-specification production is low, and the equipment utilization rate is low.

Description

Technical Field

[0001] The invention relates to the technical field of composite material processing equipment, and in particular to a high-efficiency light-curing device for pultrusion molding. Background Art

[0002] As the core process for the continuous production of fiber-reinforced composite materials, pultrusion produces high-precision profiles through processes such as fiber impregnation, curing, and pulling, and is widely used in fields such as wind turbine blades and aerospace. Traditional thermosetting pultrusion relies on high-temperature mold curing, which has disadvantages such as low production speed, easy mold clogging, and complex surface treatment. With the development of light-curing technology, the use of ultraviolet (UV) light to initiate rapid cross-linking of resins can achieve a pultrusion speed increase of more than 10 times, becoming a key direction for reducing costs and improving efficiency.

[0003] Chinese patent CN113650324B discloses a light-curing pultrusion system that uses a UV curing device to achieve rapid curing. However, in practical applications, there are still core unresolved issues. Specifically, the resin distribution on the surface of the fiber bundle after dipping is uneven. The existing squeegee structure (such as a fixed-aperture squeegee) cannot adapt to changes in fiber bundle diameter. The squeegee assembly of a single specification requires shutdown to replace, which cannot meet the needs of small-batch production of multiple varieties. The changeover time is as long as 30 minutes or more, and the equipment utilization rate is low.

[0004] Therefore, there is an urgent need to propose an efficient light-curing device for pultrusion to solve the problems that the existing fixed scraper structure cannot adapt to changes in fiber bundle diameter, has low efficiency in multi-specification production changeover, and has low equipment utilization. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to propose an efficient light-curing device for pultrusion, so as to enable the scraping device to quickly adapt to different fiber bundles, efficiently recover resin, and accurately coordinate with the curing device in the efficient production of light-curing pultrusion.

[0006] Based on the above objectives, the present invention provides a high-efficiency light-curing device for pultrusion, which is used to scrape glue on a fiber bundle that has passed through a dipping device before entering a UV curing machine. The device comprises a support panel and at least one scraper provided on the support panel, wherein the scraper is used to scrape off excess resin on the surface of the fiber bundle;

[0007] The support panel is provided with a drainage channel, and the resin in the fiber bundle after being scraped off by the scraper will enter the drainage channel;

[0008] The high-efficiency light-curing device further includes a delivery pump for delivering the resin in the drainage channel back to the resin box of the dipping device.

[0009] Preferably, the scraper is provided with wire holes for scraping glue, and the wire holes of each scraper distributed on the supporting panel have different diameters.

[0010] Preferably, the support panel is provided with mounting grooves corresponding to the number of scrapers;

[0011] The scraper includes a frame and a panel arranged in the frame, and the panel is fixed to the frame by a fastening piece;

[0012] The wire holes are distributed on the panel, and rubber rings are correspondingly provided in the wire holes;

[0013] The frame is inserted into the installation groove through the sliding groove, and a fastening plate corresponding to the installation groove is provided on the support panel. The frame is fixed in the installation groove through the fastening plate, and a rubber sheet is provided on the inner wall of the fastening plate.

[0014] Preferably, a support tube and a fixing seat are provided on one side of the support panel, a convex ring is formed on one side of the support panel, and the convex ring is rotatably connected to the support tube through a bearing;

[0015] The support tube is fixedly mounted on a fixing seat, and a rotation driver is provided on the fixing seat;

[0016] The rotary driver is in transmission connection with the convex ring and is used for controlling the rotation of the supporting panel.

[0017] Preferably, the drainage channel includes branch channels corresponding to the number of scrapers and a central hole located at the axis of the support panel, and the branch channels are connected to the central hole;

[0018] The support tube has a hollow structure inside and has a liquid inlet and a liquid outlet that are vertically distributed. The liquid inlet of the support tube is connected to the central hole, and the liquid outlet of the support tube is connected to the delivery pump through a pipeline.

[0019] The frame is provided with an oblique flow channel on one side facing the dipping device, for guiding the resin into the branch flow channel;

[0020] The high-efficiency light curing device further includes a blocking mechanism, a support frame is provided at one end of the support tube away from the liquid inlet, and the blocking mechanism is provided on the support frame;

[0021] The scraper position perpendicular to the support panel is the scraping station. The sealing mechanism includes a sealing plate. The sealing mechanism is used to drive the sealing plate to disconnect the branch channels corresponding to the scrapers that are not in the scraping station, so as to prevent the resin in the center hole from flowing into the branch channels corresponding to the scrapers that are not in the scraping station.

[0022] Preferably, the blocking mechanism further comprises a connecting rod and a first cylinder, and the first cylinder is arranged on the support frame;

[0023] The inner surface of the blocking plate is provided with a first sealing ring for isolating the central hole from the outside of the supporting panel;

[0024] A groove is formed at the connection between the branch channel and the central hole, and a protrusion corresponding to the scraper of the glue removal station is formed on the first sealing ring, which is used to be inserted into the groove to disconnect the corresponding branch channel from the central hole;

[0025] The end of the support frame close to the support tube is the left end plate, and the end away from it is the right end plate. The connecting rod is slidably set on the right end plate. One end of the connecting rod passes through the end face of the support tube and is connected to the inner surface of the sealing plate in sequence, and the other end of the connecting rod is connected to the piston rod of the first cylinder.

[0026] Preferably, the high-efficiency light-curing device further comprises a ring plate and a displacement drive mechanism, the ring plate is sleeved on the connecting rod and is slidingly and sealingly connected thereto, and a second sealing ring is provided on the outer edge surface of the ring plate.

[0027] The side wall of the ring plate is provided with a sleeve, which is sleeved on the connecting rod and passes through the outer end surface of the support tube and the left end plate of the support frame in sequence and is connected to the position drive mechanism. The displacement drive mechanism is used to control the movement of the ring plate along the axis direction of the center hole.

[0028] Preferably, the displacement driving mechanism includes a slide rail frame and a sliding seat, the slide rail frame is arranged on the support frame, the sliding seat is slidably arranged on the slide rail frame, and the sliding seat is connected to the end of the sleeve;

[0029] A threaded rod is rotatably provided on the slide rail frame, and the threaded rod is threadedly connected to the slide seat through a nut;

[0030] The slide rail frame is provided with a driving motor, and the driving motor is connected to the threaded rod.

[0031] Preferably, the high-efficiency light curing device further comprises a frame plate and a second cylinder;

[0032] The second cylinder is arranged on the UV curing machine, and the frame plate is arranged on the piston rod of the second cylinder;

[0033] The surface of the frame is provided with a heating wire.

[0034] The side wall of the support panel is recessed inward to form a heating groove corresponding to the branch channel. The second cylinder is used to drive the frame plate to embed into the heating groove of the scraping station to heat the branch channel through the heating wire.

[0035] Preferably, a silicone one-way valve is arranged around the ring plate, and the opening direction of the silicone one-way valve faces the outer end surface of the support tube.

[0036] Beneficial effects of the present invention:

[0037] 1. The present invention achieves rapid changeover (changeover time ≤ 1 minute) of fiber bundles with different diameters (Φ2-Φ15mm) and precise control of surface resin (resin content fluctuation ±5%) through the dynamic adaptation design of a rotating multi-specification scraper and an elastic scraper ring. This solves the core problems of existing fixed scraper structures, such as the inability to adapt to fiber bundle diameter, low changeover efficiency in multi-specification production, and low equipment utilization.

[0038] 2. The sealed drainage channel, dynamic blocking mechanism, ring plate pressurization design, and the coordination of the heating tank and heating wire solve the problem of resin solidification and blockage, and achieve continuous and uninterrupted operation of the equipment (the original maintenance cycle required daily shutdown and cleaning, but now the maintenance cycle has been extended to once a week). BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0040] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0041] Figure 2 It is the front view of the present invention;

[0042] Figure 3 It is a schematic diagram of the three-dimensional exploded structure of the support panel and the scraper of the present invention;

[0043] Figure 4 It is a schematic diagram of the three-dimensional exploded structure of the scraper of the present invention;

[0044] Figure 5 It is a schematic diagram of the local structure of the present invention;

[0045] Figure 6 Schematic diagram of the internal structure of the present invention;

[0046] Figure 7 Schematic diagram of the three-dimensional structure of the blocking plate of the present invention;

[0047] Figure 8 It is a schematic diagram of the three-dimensional structure of the support panel, support tube, sealing plate and ring plate of the present invention;

[0048] Figure 9 for Figure 2 A magnified view of point A;

[0049] Figure 10 It is a schematic diagram of the three-dimensional structure of the support panel mounting groove and the frame plate of the present invention;

[0050] The numbers in the figure are:

[0051] 1-Support panel; 11-Mounting groove; 111-Fasten plate; 112-Rubber sheet; 12-Protruding ring; 13-Branch channel; 14-Center hole; 2-Scraper; 21-Frame; 211-Oblique flow channel; 22-Panel; 23-Fasten plate; 24-Rubber ring; 3-Delivery pump; 4-Support pipe; 41-Fixed seat; 411-Rotary drive; 42-Support frame; 5-Sealing mechanism; 51-Sealing plate; 52-First sealing ring; 521-Bump; 53-Connecting rod; 54-First cylinder; 6-Ring plate; 61-Second sealing ring; 62-Sleeve; 63-Silicone one-way valve; 7-Displacement drive mechanism; 71-Slide frame; 72-Sliding seat; 73-Threaded rod; 74-Drive motor; 8-Frame plate; 81-Second cylinder; 82-Heating wire; 9-UV curing machine. DETAILED DESCRIPTION

[0052] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to specific embodiments.

[0053] It should be noted that, unless otherwise defined, the technical or scientific terms used in the present invention should have the usual meanings understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0054] like Figure 1 and Figure 2 As shown, a high-efficiency light-curing device for pultrusion:

[0055] The device body comprises a supporting panel 1 and at least one scraper 2;

[0056] Support panel 1: Serves as a bearing base, with a flat and high-strength surface, used to mount the scraper 2 and construct the drainage channel. It is preferably made of aluminum alloy, with an anodized surface to resist resin corrosion.

[0057] Scraper 2: Installed on support panel 1, there is at least one (preferably four) scraper blades distributed around the support panel. Each scraper blade 2 has a different diameter thread hole (e.g., 5mm, 8mm, 10mm, 12mm) to accommodate fiber bundles of varying thicknesses. The thread hole edges are smooth to avoid scratching the fibers.

[0058] Drainage system, such as Figure 1 and Figure 3 As shown:

[0059] The support panel 1 is internally provided with drainage channels, including branch channels 13 corresponding to the number of scrapers 2 and a central hole 14 at the axis of the panel 22. One end of the branch channel 13 connects to the oblique flow channel 211 below the scraper 2 through-hole, and the other end converges to the central hole 14, forming a resin diversion path.

[0060] Transfer pump 3: Connected to the center hole 14 of the support panel 1 via a pipe, it is used to transfer the resin in the drainage channel back to the resin tank of the dipping device. Transfer pump 3 uses a gear pump or diaphragm pump that is resistant to resin corrosion to ensure stable reflux.

[0061] Scraper 2 structure, such as Figure 3 and Figure 4 As shown:

[0062] Each scraper 2 includes a frame 21 and a panel 22 disposed in the frame 21. The panel 22 is fixed to the frame 21 by a fastening piece 23 (such as a bolt or a buckle) to facilitate disassembly and replacement.

[0063] The wire hole is distributed in the center of the panel 22, and a rubber ring 24 (such as fluororubber, Shore hardness 70-80) is embedded in the hole. The inner diameter of the rubber ring 24 is slightly smaller than the diameter of the fiber bundle. It fits the surface of the fiber bundle through elastic deformation to achieve flexible scraping.

[0064] The support panel 1 is surrounded by mounting grooves 11 corresponding to the number of scrapers 2. The grooves are rectangular or T-shaped and fit into the sliding grooves of the frames 21 of the scrapers 2. The frames 21 are inserted into the mounting grooves 11 through the sliding grooves and are tightened and fixed by fastening plates 111 (located outside the mounting grooves 11).

[0065] A rubber sheet 112 (thickness 1-2 mm) is pasted on the inner wall of the fastening plate 111 to fill the gap between the frame 21 and the mounting groove 11, enhance the sealing and buffer vibration, and ensure that the scraper 2 is stable and does not move.

[0066] like Figure 5 As shown, the switching of scraping stations is achieved by the following methods:

[0067] A support tube 4 and a fixing seat 41 are provided on one side of the support panel 1 . A convex ring 12 is formed on one side of the support panel 1 . The convex ring 12 is rotatably connected to the support tube 4 through a bearing, allowing the support panel 1 to rotate around the axis of the center hole 14 .

[0068] A rotation driver 411 (such as a servo motor or a stepper motor) is installed on the fixed seat 41, which is connected to the convex ring 12 through gears or a synchronous belt. In this solution, a synchronous belt is selected for transmission connection but is not limited to this. The support panel 1 is controlled to rotate at a speed of 5-15rpm to realize the station switching of the scraper 2 (the switching angle matches the number of scrapers 2, such as when there are 4 scrapers 2, each rotation is 90°).

[0069] Drainage channel layout, such as Figure 3 、 Figure 5 and Figure 6 As shown:

[0070] The branch channels 13 are radially distributed with the central hole 14 of the support panel 1 as the center. Each branch channel 13 is connected to the oblique flow channel 211 of the corresponding scraper 2. The oblique flow channel 211 is inclined 15°-30° toward the central hole 14 to guide the resin to flow into the branch channel 13 by gravity.

[0071] The support tube 4 is a hollow structure with a vertically distributed liquid inlet and liquid outlet: the liquid inlet is connected to the central hole 14, and the liquid outlet is connected to the delivery pump 3 through a pipeline to form a resin outflow path.

[0072] Resin diversion control and sealing, such as Figures 6 to 8 As shown:

[0073] A support frame 42 is provided at one end of the support tube 4 away from the liquid inlet, on which a blocking mechanism 5 is mounted, comprising a blocking plate 51, a connecting rod 53 and a first cylinder 54:

[0074] The blocking plate 51 is located at the top of the central hole 14 , and an annular first sealing ring 52 is provided on the inner surface thereof for isolating the central hole 14 from the external space of the supporting panel 1 .

[0075] A groove is formed at the connection between each branch channel 13 and the center hole 14, and a protrusion 521 corresponding to the scraper 2 at the scraping station is formed on the first sealing ring 52, which is used to be inserted into the groove to disconnect the corresponding branch channel 13 and the center hole 14 (the number of protrusions 521 is one less than the number of scrapers 2). When a scraper 2 is in the scraping station, the protrusion 521 is inserted into the groove of the non-working station to disconnect the non-working branch channel 13 from the center hole 14, thereby preventing resin from flowing in.

[0076] The first cylinder 54 drives the connecting rod 53 to reciprocate, driving the blocking plate 51 to move along the axis of the central hole 14 to achieve sealing and conduction switching of the slot.

[0077] Booster systems, such as Figures 6 to 8 As shown:

[0078] The ring plate 6 is sleeved on the connecting rod 53 and slides and seals with the inner wall of the support tube 4. A second sealing ring 61 is provided on the outer edge surface to ensure the sealing of the ring plate 6 when it moves.

[0079] The sidewall of ring plate 6 is connected to sleeve 62, which penetrates the outer end surface of support tube 4 and support frame 42 and is in transmission connection with displacement drive mechanism 7 (comprising slide rail 71, slide seat 72, threaded rod 73, and drive motor 74). Drive motor 74 drives slide seat 72 along slide rail 71 via threaded rod 73, thereby controlling the reciprocating movement of ring plate 6 along the axis of center hole 14, squeezing the resin within center hole 14. The resin, in conjunction with silicone one-way valve 63 on ring plate 6 (opening toward the liquid outlet of support tube 4), flows back to the resin tank through the liquid outlet and transfer pump 3, thereby increasing the resin discharge rate.

[0080] Anti-coagulation heating module, such as Figure 9 and Figure 10 As shown:

[0081] The side wall of the supporting panel 1 is recessed inward to form a heating groove corresponding to the branch channel 13 . The groove has a depth of 3-5 mm and a width matching that of the branch channel 13 .

[0082] A second cylinder 81 is mounted on the UV curing machine 9, its piston rod connected to the frame 8. A heating wire 82 (e.g., nickel-chromium alloy wire, 50-100W) is installed on the surface of the frame 8. When the scraper 2 switches to a working position, the second cylinder 81 drives the frame 8 into the corresponding heating slot. The heating wire 82 heats the branch channel 13, maintaining a temperature of 60-80°C (depending on the resin type) to prevent the resin from solidifying due to a drop in temperature.

[0083] Production preparation stage:

[0084] According to the diameter of the fiber bundle to be processed, the support panel 1 is adjusted by rotating the driver 411 so that the scraper 2 of the corresponding specification is aligned with the fiber bundle path;

[0085] Start the heating system, and the heating wire 82 heats the branch channel 13 corresponding to the current working scraper 2 to maintain the temperature within the range required by the resin process (such as 70°C for UV resin);

[0086] Turn on the delivery pump 3 to establish a circulation loop for the resin from the branch channel 13 of the scraper 2 to the resin box of the dipping device, ensuring that there is no air residue in the pipeline.

[0087] Glue scraping and recycling stage:

[0088] The impregnated fiber bundle passes through the thread hole of the scraper 2, and the elastic rubber ring 24 scrapes off the excess resin on the surface by slight squeezing. The resin flows along the oblique flow channel 211 of the scraper 2 and flows into the branch channel 13 below.

[0089] The resin in the branch channel 13 flows toward the center hole 14. The displacement drive mechanism 7 controls the ring plate 6 to move toward the support tube 4, squeezing the resin in the center hole 14. Combined with the one-way conduction function of the silicone one-way valve 63, the resin is quickly pressed into the support tube 4 and flows back to the resin box through the delivery pump 3 for filtration and reuse.

[0090] Specification switching phase:

[0091] When the fiber bundle specifications need to be changed, the rotary driver 411 drives the support panel 1 to rotate, so that the target scraper 2 moves to the working position;

[0092] At the same time, the cylinder of the blocking mechanism 5 is actuated, and the blocking plate 51 moves, cutting off the connection between the branch channel 13 of the original working scraper 2 and the central hole 14, ensuring that the resin only flows in from the branch channel 13 of the current working scraper 2;

[0093] The displacement drive mechanism 7 controls the ring plate 6 to move back and forth 2-3 times to remove the residual resin in the center hole 14 and avoid the mixing of resins when the scrapers 2 of different specifications are switched.

[0094] Anti-solidification maintenance stage:

[0095] The temperature sensor (not shown in the figure) monitors the temperature of the branch channel 13 in real time. When the temperature is detected to be lower than the set threshold (such as 65°C), the heating system automatically increases the power, and the cylinder drives the frame plate 8 to fit closely with the heating tank to improve the heating efficiency;

[0096] After production is completed, the delivery pump 3 continues to run for 5-10 minutes to return all the residual resin in the pipeline to the resin box, and the ring plate 6 moves to the extreme position to ensure that there is no resin retention in the center hole 14 and the branch channel 13 to prevent solidification and blockage after shutdown.

[0097] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0098] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high-efficiency light-curing device for pultrusion, used for scraping glue on fiber bundles that have passed through a dipping device and are before entering a UV curing machine, characterized in that: It includes a support panel and at least one scraper provided on the support panel, and the scraper is used to scrape off excess resin on the surface of the fiber bundle; The support panel is provided with a drainage channel, and the resin in the fiber bundle after being scraped off by the scraper will enter the drainage channel; The high-efficiency light-curing device further includes a delivery pump for delivering the resin in the drainage channel back to the resin box of the dipping device; The scraper is provided with thread holes for scraping glue, and the thread holes of each scraper distributed on the support panel have different diameters; The support panel is surrounded by mounting grooves corresponding to the number of scrapers; The scraper includes a frame and a panel arranged in the frame, and the panel is fixed to the frame by a fastening piece; The wire holes are distributed on the panel, and rubber rings are correspondingly provided in the wire holes; The frame is inserted into the installation slot through the slide groove, and a fastening plate corresponding to the installation slot is provided on the support panel. The frame is fixed in the installation slot through the fastening plate, and a rubber sheet is provided on the inner wall of the fastening plate; A support tube and a fixing seat are provided on one side of the support panel, a convex ring is formed on one side of the support panel, and the convex ring is rotatably connected to the support tube through a bearing; The support tube is fixedly mounted on a fixing seat, and a rotation driver is provided on the fixing seat; The rotary driver is in transmission connection with the convex ring and is used to control the rotation of the supporting panel; The drainage channel includes branch channels corresponding to the number of scrapers and a central hole located at the axis of the support panel, and the branch channels are connected to the central hole; The support tube has a hollow structure inside and has a liquid inlet and a liquid outlet that are vertically distributed. The liquid inlet of the support tube is connected to the central hole, and the liquid outlet of the support tube is connected to the delivery pump through a pipeline. The frame is provided with an oblique flow channel on one side facing the dipping device, for guiding the resin into the branch flow channel; The high-efficiency light curing device further includes a blocking mechanism, a support frame is provided at one end of the support tube away from the liquid inlet, and the blocking mechanism is provided on the support frame; The scraper position perpendicular to the support panel is the scraping station. The sealing mechanism includes a sealing plate. The sealing mechanism is used to drive the sealing plate to disconnect the branch channels corresponding to the scrapers that are not in the scraping station, so as to prevent the resin in the center hole from flowing into the branch channels corresponding to the scrapers that are not in the scraping station.

2. The high-efficiency light-curing device for pultrusion according to claim 1, characterized in that: The blocking mechanism further includes a connecting rod and a first cylinder, wherein the first cylinder is arranged on the support frame; The inner surface of the blocking plate is provided with a first sealing ring for isolating the central hole from the outside of the supporting panel; A groove is formed at the connection between the branch channel and the central hole, and a protrusion corresponding to the scraper of the glue removal station is formed on the first sealing ring, which is used to be inserted into the groove to disconnect the corresponding branch channel from the central hole; The end of the support frame close to the support tube is the left end plate, and the end away from it is the right end plate. The connecting rod is slidably set on the right end plate. One end of the connecting rod passes through the end face of the support tube and is connected to the inner surface of the sealing plate in sequence, and the other end of the connecting rod is connected to the piston rod of the first cylinder.

3. The high-efficiency light-curing device for pultrusion according to claim 2, characterized in that: The high-efficiency light curing device further comprises a ring plate and a displacement drive mechanism, wherein the ring plate is sleeved on the connecting rod and is slidably and sealedly connected thereto, and a second sealing ring is provided on the outer edge surface of the ring plate; The side wall of the ring plate is provided with a sleeve, which is sleeved on the connecting rod and passes through the outer end surface of the support tube and the left end plate of the support frame in sequence and is connected to the position drive mechanism. The displacement drive mechanism is used to control the movement of the ring plate along the axis direction of the center hole.

4. The high-efficiency light-curing device for pultrusion according to claim 3, characterized in that: The displacement driving mechanism includes a slide rail frame and a sliding seat, wherein the slide rail frame is arranged on the support frame, the sliding seat is slidably arranged on the slide rail frame, and the sliding seat is connected to the end of the sleeve; A threaded rod is rotatably provided on the slide rail frame, and the threaded rod is threadedly connected to the slide seat through a nut; The slide rail frame is provided with a driving motor, and the driving motor is connected to the threaded rod.

5. The high-efficiency light-curing device for pultrusion according to claim 1, characterized in that: The high-efficiency light curing device also includes a frame plate and a second cylinder; The second cylinder is arranged on the UV curing machine, and the frame plate is arranged on the piston rod of the second cylinder; The surface of the frame is provided with a heating wire. The side wall of the support panel is recessed inward to form a heating groove corresponding to the branch channel. The second cylinder is used to drive the frame plate to embed into the heating groove of the scraping station to heat the branch channel through the heating wire.

6. The high-efficiency light-curing device for pultrusion according to claim 3, characterized in that: A silicone one-way valve is arranged around the ring plate, and the opening direction of the silicone one-way valve faces the outer end surface of the support tube.

Images