A centralized feeding device for pultrusion line glue injection

Abstract

This invention relates to the field of centralized feeding equipment technology, and discloses a centralized feeding device for pultrusion line glue injection, including a feeding hopper. A suction pipe is fixedly connected to the top of the feeding hopper, and a one-way valve is installed on the outer wall of the suction pipe. A connecting cylinder is fixedly connected to the top of the suction pipe, and an exhaust pipe is fixedly connected to the bottom of the connecting cylinder. A two-way valve is installed on the outer wall of the exhaust pipe. A piston rod is slidably connected to the top of the connecting cylinder, and a piston plate is fixedly connected to the bottom of the piston rod. A connecting plate is fixedly connected to the top of the piston rod, and the bottom of the actuating rod is fixedly connected to the output end of a cylinder. By extending and retracting the cylinder, the connecting plate drives the piston rod to slide within the connecting cylinder. The piston plate moves accordingly, and the piston rod drives the piston plate to move upwards. Gas in the feeding hopper enters the connecting cylinder. When moving downwards, the gas is discharged through the exhaust pipe, achieving auxiliary air bubble discharge from the feeding hopper and effectively reducing air bubbles generated during mixing in the feeding hopper.

Description

Technical Field

[0001] This invention relates to the field of centralized feeding equipment technology, specifically a centralized feeding equipment for pultrusion line glue injection. Background Technology

[0002] A pultrusion line, also known as a pultrusion molding production line, is a specialized piece of equipment for the continuous production of fiber-reinforced composite profiles. During the pultrusion process, the quality of the supplied rubber directly determines the mechanical properties of the product. In order to improve the efficiency of the pultrusion die operation, a centralized feeding device is required.

[0003] Traditional feeding equipment cannot reduce the air bubbles generated by mixing. The molten adhesive carries a large number of air bubbles into the injection process. After the air bubbles solidify in the pultrusion mold, they will cause defects such as internal pores and surface pinholes in the product, which will significantly reduce the tensile and bending mechanical properties of the composite material and lead to an increase in the scrap rate of the product. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a centralized feeding device for pultrusion lines, which solves the problem that traditional feeding devices cannot reduce the air bubbles generated by stirring. Molten adhesive carries a large number of air bubbles into the injection process. After the air bubbles solidify in the pultrusion mold, they will cause defects such as internal pores and surface pinholes in the product, which will significantly reduce the tensile and flexural mechanical properties of the composite material and lead to an increase in the scrap rate of the product.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a centralized feeding device for pultrusion line glue injection, comprising a support platform, a feeding hopper symmetrically and fixedly connected inside the support platform, a suction pipe fixedly connected to the top of the feeding hopper, a one-way valve I installed on the outer wall of the suction pipe, a connecting cylinder fixedly connected to the top of the suction pipe, an exhaust pipe fixedly connected to the bottom of the connecting cylinder, a one-way valve II installed on the outer wall of the exhaust pipe, a piston rod slidably connected to the top of the connecting cylinder, a piston plate fixedly connected to the bottom of the piston rod, the outer wall of the piston plate slidably connected to the inner wall of the connecting cylinder, a connecting plate fixedly connected to the top of the piston rod, an actuating rod fixedly connected to the bottom of one end of the connecting plate, a cylinder installed on the top of the feeding hopper, the bottom of the actuating rod fixedly connected to the output end of the cylinder, and a stirring assembly installed inside each feeding hopper.

[0006] By adopting the above technical solution, the cylinder is controlled to extend and retract. The cylinder, through its actuating rod, causes the connecting plate to slide the piston rod inside the connecting cylinder. The piston plate moves accordingly. When the piston rod drives the piston plate upward, the gas in the feeding barrel enters the connecting cylinder. When the piston rod drives the piston plate downward, the gas is discharged through the exhaust pipe. This achieves the regulation of the gas pressure inside the feeding barrel. By changing the gas pressure, it can assist in the discharge of air bubbles in the feeding barrel, effectively reducing the air bubbles generated during mixing in the feeding barrel, thereby reducing air bubble generation and significantly improving the glue injection effect. One-way valve one and one-way valve two work together to prevent gas backflow.

[0007] Preferably, the stirring assembly includes a support column, one end of which is fixedly connected to the middle of the feeding hopper, and one end of which is fixedly connected to an installation frame. A drive motor is installed inside the installation frame, and the output end of the drive motor is fixedly connected to a rotating shaft. The outer wall of the rotating shaft is rotatably connected to the installation frame, and stirring blades are uniformly fixedly connected to one end of the rotating shaft.

[0008] Preferably, the other end of the rotating shaft is fixedly connected to a driving bevel gear, the tooth ends of the driving bevel gear are symmetrically meshed with driven bevel gears, the inner walls of the two driven bevel gears are respectively fixedly connected to a connecting shaft and a rotating shaft, and the outer walls of the connecting shaft and the rotating shaft are rotatably connected within the mounting frame.

[0009] Preferably, an upper scraper is symmetrically fixedly connected to the middle of the connecting shaft, the outer wall of the upper scraper is set on the inner wall of the feeding barrel, a stirring rod is uniformly fixedly connected to the outer wall of the connecting shaft, and a bubble needle is uniformly fixedly connected to the outer wall of the stirring rod.

[0010] Preferably, stirring blades are uniformly fixedly connected to the outer wall of the rotating shaft, and the stirring blades are respectively arranged on both sides of the rotating shaft. A lower scraper is fixedly connected to one end of each stirring blade on both sides. The outer wall of the lower scraper is arranged on the inner wall of the feeding bucket, and through holes are uniformly opened inside the stirring blade.

[0011] Preferably, a feeding hopper is symmetrically and fixedly connected to the top of the feeding hopper, a support shaft is rotatably connected inside the feeding hopper, a rotating plate is fixedly connected to the outer wall of the support shaft, and the outer wall of the rotating plate is rotatably connected to the inner wall of the feeding hopper.

[0012] Preferably, a second driving bevel gear is fixedly connected to the top of the connecting shaft, and a second driven bevel gear is symmetrically meshed with the tooth ends of the second driving bevel gear. The inner wall of the second driven bevel gear is fixedly connected to the outer wall of the support shaft.

[0013] Preferably, a protective frame is fixedly connected to the top of the feeding hopper, and the outer walls of both the driving bevel gear II and the driven bevel gear II are disposed within the protective frame.

[0014] Preferably, an outer cylinder is fixedly connected to the outer wall of the feeding hopper, and a heating tube is provided inside the outer cylinder, with the inner wall of the heating tube fitted onto the outer wall of the feeding hopper.

[0015] Preferably, the bottom of each feeding hopper is fixedly connected to a discharge pipe, and a discharge valve is installed on the outer wall of the discharge pipe.

[0016] Working principle: The operator first starts the drive motor. The output end of the drive motor drives the rotating shaft to rotate. The horizontal stirring blades move in a circle with the rotating shaft. At the same time, the rotating shaft drives the active bevel gear to rotate, which in turn drives the two driven bevel gears to drive the connecting shaft and the rotating shaft to rotate vertically. When the connecting shaft rotates, it drives the stirring rod and the upper scraper to rotate. Through the engagement of the active bevel gear two with the driven bevel gear two, it drives the support shaft and the rotating plate to rotate in the feed hopper, so that the rotating plate intermittently opens and closes the feed hopper channel, controlling the raw materials to intermittently enter the feeding bucket. When the shaft rotates, it drives the stirring blade and the lower scraper to rotate. The stirring rod and the stirring blade stir in opposite directions. The bubble needle on the stirring rod and the through hole on the stirring blade operate synchronously. The upper scraper and the lower scraper scrape off the raw material from the inner wall of the feeding bucket. Then, the cylinder is controlled to extend and retract. The cylinder pushes the rod to drive the connecting plate and piston rod to slide inside the connecting cylinder. The piston plate moves with the piston rod. In conjunction with the one-way valves one and two, the gas in the feeding barrel enters the connecting cylinder through the suction pipe and is discharged one-way through the exhaust pipe. The operator starts the heating element to heat the feeding barrel through the control panel. When feeding, the discharge valve is opened and the glue is transported to the pultrusion line glue injection production line through the discharge pipe.

[0017] This invention provides a centralized feeding device for pultrusion line glue injection. It has the following beneficial effects: 1. This invention controls the extension and retraction of a cylinder. The cylinder, through its actuating rod, causes the connecting plate to slide within the connecting cylinder, and the piston plate moves accordingly. When the piston rod drives the piston plate upward, gas from the feeding barrel enters the connecting cylinder. When the piston rod drives the piston plate downward, the gas is discharged through the exhaust pipe. This achieves the regulation of the gas pressure inside the feeding barrel. By changing the gas pressure, it can assist in the discharge of air bubbles from the feeding barrel, effectively reducing the air bubbles generated during mixing in the feeding barrel, thereby reducing air bubble formation and significantly improving the glue injection effect. One-way valve one and one-way valve two work together to prevent gas backflow.

[0018] 2. This invention uses a drive motor to rotate a rotating shaft, which in turn causes the stirring blades to move in a horizontal circular motion, stirring the raw materials in the feeding hopper. This achieves horizontal stirring of the raw materials in the feeding hopper. The rotation of the rotating shaft drives the active bevel gear to rotate, causing the two symmetrically meshing driven bevel gears to rotate, which in turn drives the connecting shaft and the rotating shaft to rotate in the vertical direction. The connecting shaft drives the stirring rod and the upper scraper to rotate. The stirring rod stirs the top of the feeding hopper, while the rotating shaft drives the stirring blades and the lower scraper to rotate. The stirring blades stir the bottom of the feeding hopper. The upper and lower scrapers simultaneously scrape off the residual raw materials on the inner wall of the feeding hopper. The bubble needle and through-hole further reduce bubbles, achieving all-round stirring of the raw materials in the feeding hopper and avoiding uneven mixing.

[0019] 3. This invention drives the active bevel gear two to rotate by rotating the connecting shaft, which in turn drives the two meshing driven bevel gear two to rotate, thereby driving the support shaft to rotate. The support shaft causes the rotating plate to rotate in the feeding hopper, realizing the intermittent entry of raw materials into the feeding barrel. This precisely controls the amount of raw materials entering the feeding barrel, avoiding the addition of too much raw material at one time, which would lead to uneven mixing. This ensures the quality stability of the glue and ensures that each stirring achieves a good mixing effect. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial structural diagram of the feeding hopper of the present invention; Figure 3 This is a partial structural diagram of the mounting frame of the present invention; Figure 4 This is a partial structural diagram of the connecting cylinder of the present invention; Figure 5 This is a partial structural diagram of the support column of the present invention; Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle; Figure 7 This is a partial structural diagram of the feed hopper of the present invention.

[0021] Among them, 1. Support platform; 2. Feeding hopper; 201. Suction pipe; 202. One-way valve I; 203. Connecting cylinder; 204. Exhaust pipe; 205. One-way valve II; 206. Piston rod; 207. Piston plate; 208. Connecting plate; 209. Actuating rod; 210. Cylinder; 3. Support column; 301. Mounting frame; 302. Drive motor; 303. Rotating shaft; 304. Stirring blade; 4. Active bevel gear I; 40 1. Driven bevel gear one; 402. Connecting shaft; 403. Upper scraper; 404. Stirring rod; 405. Bubble needle; 5. Rotating shaft; 501. Stirring blade; 502. Lower scraper; 503. Through hole; 6. Feed hopper; 601. Support shaft; 602. Rotating plate; 7. Driven bevel gear two; 701. Driven bevel gear two; 702. Protective frame; 8. Outer cylinder; 801. Heating tube; 9. Discharge pipe; 901. Discharge valve. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 - Appendix Figure 4 This invention provides a centralized feeding device for pultrusion line glue injection, including a support platform 1. A feeding tank 2 is symmetrically fixedly connected inside the support platform 1. An air suction pipe 201 is fixedly connected to the top of the feeding tank 2. A one-way valve 202 is installed on the outer wall of the air suction pipe 201. A connecting cylinder 203 is fixedly connected to the top of the air suction pipe 201. An exhaust pipe 204 is fixedly connected to the bottom of the connecting cylinder 203. A two-way valve 205 is installed on the outer wall of the exhaust pipe 204. A piston rod 206 is slidably connected to the top of the connecting cylinder 203. A piston plate 207 is fixedly connected to the bottom of the piston rod 206. The outer wall of the piston plate 207 is slidably connected to the inner wall of the connecting cylinder 203. A connecting plate 208 is fixedly connected to the top of the piston rod 206. An actuating rod 209 is fixedly connected to the bottom of one end of the connecting plate 208. A cylinder 210 is installed on the top of the feeding tank 2. The bottom of the actuating rod 209 is fixedly connected to the output end of the cylinder 210. A stirring assembly is installed inside each feeding tank 2.

[0024] Specifically, when it is necessary to adjust the air pressure inside the feeding barrel 2 to assist in the discharge of air bubbles, the operator controls the cylinder 210 to extend. The output end of the cylinder 210 pushes the actuating rod 209 upward. The actuating rod 209 drives the connecting plate 208 upward, thereby causing the piston rod 206 to slide upward within the connecting cylinder 203. The piston plate 207 then moves upward. At this time, the gas inside the feeding barrel 2 enters the connecting cylinder 203 through the suction pipe 201. The one-way valve 202 allows the gas to flow from the feeding barrel 2 to the connecting cylinder 203 while preventing gas backflow. Then, the operator controls the cylinder 210 to retract. The output end of the cylinder 210 drives the actuating rod 209 downward. 9. The connecting plate 208 moves downward, the piston rod 206 slides downward in the connecting cylinder 203, the piston plate 207 moves downward, and the gas in the connecting cylinder 203 is discharged through the exhaust pipe 204. The one-way valve 205 allows the gas to be discharged from the connecting cylinder 203 while preventing external gas from entering the connecting cylinder 203. Through the cooperation of the one-way valve 202 and the one-way valve 205, the gas flows in one direction and prevents the gas from flowing back. The change in air pressure can help to discharge the air bubbles in the feeding barrel 2, effectively reducing the air bubbles generated when the feeding barrel 2 is stirred, and significantly improving the glue injection effect. The cooperation of the stirring components helps to improve the overall uniformity of the glue.

[0025] Please see the appendix Figure 3 , Figure 6 The mixing assembly includes a support column 3, one end of which is fixedly connected to the middle of the feeding tank 2. A mounting frame 301 is fixedly connected to one end of the support column 3. A drive motor 302 is installed inside the mounting frame 301. A rotating shaft 303 is fixedly connected to the output end of the drive motor 302. The outer wall of the rotating shaft 303 is rotatably connected inside the mounting frame 301. A mixing blade 304 is evenly fixedly connected to one end of the rotating shaft 303.

[0026] Specifically, when it is necessary to stir the raw materials in the feeding hopper 2, the operator starts the drive motor 302. The output end of the drive motor 302 drives the rotating shaft 303 to rotate. The stirring blades 304 will move in a horizontal circular motion as the rotating shaft 303 rotates. The horizontal circular motion can stir the raw materials in the feeding hopper 2, so that the raw materials at the top and bottom of the feeding hopper 2 are fully mixed in the horizontal direction, laying the foundation for further in-depth stirring and uniform mixing, and helping to improve the overall uniformity of the glue.

[0027] Please see the appendix Figures 1-3 Appendix Figure 4 - Appendix Figure 7The other end of the rotating shaft 303 is fixedly connected to the driving bevel gear 4. The tooth ends of the driving bevel gear 4 are symmetrically meshed with the driven bevel gear 401. The inner walls of the two driven bevel gears 401 are respectively fixedly connected to the connecting shaft 402 and the rotating shaft 5. The outer walls of the connecting shaft 402 and the rotating shaft 5 are rotatably connected to the mounting frame 301. A scraper 403 is symmetrically fixedly connected to the middle of the connecting shaft 402. The outer wall of the scraper 403 is set on the inner wall of the feeding barrel 2. A stirring rod 404 is uniformly fixedly connected to the outer wall of the connecting shaft 402. A bubble needle 405 is uniformly fixedly connected to the outer wall of the stirring rod 404. A stirring blade 501 is uniformly fixedly connected to the outer wall of the rotating shaft 5. The stirring blade 501 is respectively arranged on both sides of the rotating shaft 5. A lower scraper 502 is fixedly connected to one end of each stirring blade 501. The outer wall of the lower scraper 502 is arranged on the inner wall of the feeding bucket 2. Through holes 503 are uniformly opened inside the stirring blade 501.

[0028] Specifically, when the rotating shaft 303 rotates, it will drive the active bevel gear 4 to rotate. Since the active bevel gear 4 is connected to two symmetrically meshing driven bevel gears 401, the driven bevel gears 401 will rotate accordingly, thereby driving the connecting shaft 402 and the rotating shaft 5 to rotate in the vertical direction. When the connecting shaft 402 rotates, it will drive the stirring rod 404 and the upper scraper 403 to rotate. The stirring rod 404 stirs the top of the feeding barrel 2 to fully mix the raw materials at the top. During the rotation, the upper scraper 403 will scrape off the raw materials on the inner wall of the feeding barrel 2 to prevent the raw materials from adhering to the inner wall and affecting the quality. When the rotating shaft 5 rotates, it drives the stirring blade 501 and the lower scraper 502 to rotate. The stirring blade 501 stirs the bottom of the feeding barrel 2, so that the raw materials at the bottom are fully mixed. The lower scraper 502 also scrapes off the raw materials on the inner wall of the feeding barrel 2. At the same time, the bubble needle 405 on the stirring rod 404 and the through hole 503 on the stirring blade 501 can reduce the bubbles generated during the stirring process, realizing all-round stirring of the raw materials in the feeding barrel 2, avoiding uneven mixing. Moreover, the stirring rod 404 and the stirring blade 501 stir in opposite directions, which enhances the stirring effect, prevents the glue from settling and crystallizing, and ensures the stability of the glue quality.

[0029] Please see the appendix Figures 1-3 Appendix Figure 7 The top of the feeding hopper 2 is symmetrically and fixedly connected to the feeding hopper 6. The inside of the feeding hopper 6 is rotatably connected to the support shaft 601. The outer wall of the support shaft 601 is fixedly connected to the rotating plate 602. The outer wall of the rotating plate 602 is rotatably connected to the inner wall of the feeding hopper 6. The top of the connecting shaft 402 is fixedly connected to the driving bevel gear 7, and the tooth ends of the driving bevel gear 7 are symmetrically meshed with the driven bevel gear 701. The inner wall of the driven bevel gear 701 is fixedly connected to the outer wall of the support shaft 601. A protective frame 702 is fixedly connected to the top of the feeding hopper 2, and the outer walls of the driving bevel gear 7 and the driven bevel gear 701 are both set inside the protective frame 702.

[0030] Specifically, when the connecting shaft 402 rotates, it drives the active bevel gear 7 to rotate. Since the active bevel gear 7 is connected to two meshing driven bevel gears 701, the driven bevel gears 701 will rotate accordingly, thereby driving the support shaft 601 to rotate. The rotation of the support shaft 601 will cause the rotating plate 602 to rotate inside the feed hopper 6. When the rotating plate 602 rotates to a certain position, it will open the channel of the feed hopper 6, allowing the raw material to enter the feeding barrel 2. When the rotating plate 602 continues to rotate, it will close the channel of the feed hopper 6, preventing the raw material from entering. This achieves intermittent entry of raw material into the feeding barrel 2, which can precisely control the amount of raw material entering the feeding barrel 2, avoid adding too much raw material at once, which would lead to uneven mixing, ensure the quality stability of the glue, and ensure that each stirring achieves a good mixing effect.

[0031] Please see the appendix Figures 1-3 The outer wall of the feeding barrel 2 is fixedly connected to the outer cylinder 8, and the inner wall of the outer cylinder 8 is fitted with a heating tube 801. The bottom of each feeding hopper 2 is fixedly connected to a discharge pipe 9, and a discharge valve 901 is installed on the outer wall of the discharge pipe 9.

[0032] Specifically, during the feeding process, in order to ensure the fluidity of the adhesive, the operator activates the heating element 801 through the control panel of the feeding equipment. The heating element 801 generates heat and transfers the heat to the feeding bucket 2, thereby heating the adhesive in the feeding bucket 2 and preventing the adhesive from cooling and solidifying, which would affect production. When it is necessary to supply material to the pultrusion line for glue injection, the operator opens the discharge valve 901. The glue in the supply tank 2 is transported to the glue injection production line through the discharge pipe 9 under the action of gravity. Through the cooperation of the discharge pipe 9 and the discharge valve 901, the output of glue can be precisely controlled to meet the needs of different stages of the glue injection production line, making the material supply process more flexible and controllable.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A centralized feeding device for pultrusion line adhesive injection, comprising a support platform (1), characterized in that: The support platform (1) is symmetrically and fixedly connected to a feeding hopper (2). A suction pipe (201) is fixedly connected to the top of the feeding hopper (2). A one-way valve (202) is installed on the outer wall of the suction pipe (201). A connecting cylinder (203) is fixedly connected to the top of the suction pipe (201). An exhaust pipe (204) is fixedly connected to the bottom of the connecting cylinder (203). A one-way valve (205) is installed on the outer wall of the exhaust pipe (204). A piston rod (206) is slidably connected to the top of the connecting cylinder (203). A piston plate (207) is fixedly connected to the bottom of the piston rod (206). The outer wall of the piston plate (207) is slidably connected to the inner wall of the connecting cylinder (203). A connecting plate (208) is fixedly connected to the top of the piston rod (206). An actuating rod (209) is fixedly connected to the bottom of one end of the connecting plate (208). A cylinder (210) is installed on the top of the feeding bucket (2). The bottom of the actuating rod (209) is fixedly connected to the output end of the cylinder (210). A stirring assembly is installed inside the feeding bucket (2).

2. The centralized feeding equipment for pultrusion line glue injection according to claim 1, characterized in that: The stirring assembly includes a support column (3), one end of which is fixedly connected to the middle of the feeding bucket (2). One end of the support column (3) is fixedly connected to an installation frame (301). A drive motor (302) is installed inside the installation frame (301). A rotating shaft (303) is fixedly connected to the output end of the drive motor (302). The outer wall of the rotating shaft (303) is rotatably connected to the installation frame (301). Stirring blades (304) are evenly fixedly connected to one end of the rotating shaft (303).

3. The centralized feeding equipment for pultrusion line glue injection according to claim 2, characterized in that: The other end of the rotating shaft (303) is fixedly connected to an active bevel gear (4), and the tooth ends of the active bevel gear (4) are symmetrically meshed with driven bevel gears (401). The inner walls of the two driven bevel gears (401) are respectively fixedly connected to a connecting shaft (402) and a rotating shaft (5). The outer walls of the connecting shaft (402) and the rotating shaft (5) are rotatably connected within the mounting frame (301).

4. The centralized feeding equipment for pultrusion line glue injection according to claim 3, characterized in that: The connecting shaft (402) is symmetrically fixedly connected to the middle of an upper scraper (403). The outer wall of the upper scraper (403) is set on the inner wall of the feeding bucket (2). The outer wall of the connecting shaft (402) is uniformly fixedly connected to a stirring rod (404). The outer wall of the stirring rod (404) is uniformly fixedly connected to a bubble needle (405).

5. A centralized feeding device for pultrusion line glue injection according to claim 4, characterized in that: The outer wall of the rotating shaft (5) is uniformly fixedly connected with stirring blades (501). The stirring blades (501) are respectively arranged on both sides of the rotating shaft (5). One end of each stirring blade (501) on both sides is fixedly connected with a lower scraper (502). The outer wall of the lower scraper (502) is arranged on the inner wall of the feeding bucket (2). The stirring blades (501) are uniformly provided with through holes (503).

6. A centralized feeding device for pultrusion line glue injection according to claim 3, characterized in that: The top of the feeding hopper (2) is symmetrically and fixedly connected to the feeding hopper (6). The inside of the feeding hopper (6) is rotatably connected to the support shaft (601). The outer wall of the support shaft (601) is fixedly connected to the rotating plate (602). The outer wall of the rotating plate (602) is rotatably connected to the inner wall of the feeding hopper (6).

7. A centralized feeding device for pultrusion line glue injection according to claim 6, characterized in that: The top of the connecting shaft (402) is fixedly connected to the second active bevel gear (7), and the tooth ends of the second active bevel gear (7) are symmetrically meshed with the second driven bevel gear (701). The inner wall of the second driven bevel gear (701) is fixedly connected to the outer wall of the support shaft (601).

8. A centralized feeding device for pultrusion line glue injection according to claim 7, characterized in that: The top of the feeding hopper (2) is fixedly connected to a protective frame (702), and the outer walls of the active bevel gear (7) and the driven bevel gear (701) are both set inside the protective frame (702).

9. A centralized feeding device for pultrusion line glue injection according to claim 1, characterized in that: The outer wall of the feeding barrel (2) is fixedly connected to an outer cylinder (8), and a heating tube (801) is provided inside the outer cylinder (8). The inner wall of the heating tube (801) is fitted onto the outer wall of the feeding barrel (2).

10. A centralized feeding device for pultrusion line glue injection according to claim 1, characterized in that: The bottom of each feeding hopper (2) is fixedly connected to a discharge pipe (9), and a discharge valve (901) is installed on the outer wall of the discharge pipe (9).

Images