Double-layer resin injection pultrusion equipment and process

Abstract

The invention relates to the field of double-layer resin injection, in particular to double-layer resin injection pultrusion equipment which comprises a platform, supporting legs are fixedly connected to the bottom of the platform, a positioning assembly is arranged on the top of the platform, a mold assembly is arranged on the outer side of the positioning assembly, and the mold assembly comprises an outer mold abutting against the outer side of the positioning assembly. A first injection opening is formed in the outer mold, a connecting plate is fixedly connected to the interior of the outer mold, an inner mold is fixedly connected to the outer side of the connecting plate, a first conveying pipe is fixedly connected to the interior of the inner mold, and the end of the first conveying pipe fixedly communicates with a flow dividing pipe. And the effects that the first resin and the glass fibers are surrounded by the second resin to form the shell, and the second resin has corrosion-resistant and aging-resistant effects, so that after the two resins are molded, the operations of polishing and paint spraying can be reduced, the time and the cost which need to be consumed subsequently are further reduced, and the production efficiency is improved are achieved.

Description

Technical Field

[0001] This application relates to the field of double-layer resin injection, and in particular to a double-layer resin injection pultrusion equipment and process. Background Technology

[0002] Pultrusion is an automated production process that continuously produces composite profiles with a constant cross-section by using untwisted glass fiber roving or other continuous reinforcing materials under external force, through steps such as resin impregnation, extrusion molding, and heat curing.

[0003] When processing with resin, the resin needs to be injected into the mold to impregnate the glass fiber. Then, it is heated to harden the resin. Next, a pulling device moves the hardened resin and cuts it to complete the product manufacturing. However, although the molds used today can shape the resin, subsequent operations such as polishing and painting are still required, which consumes more time and costs and makes them inconvenient to use. Summary of the Invention

[0004] In order to reduce the need for subsequent operations such as polishing and painting of the product, thereby reducing the time and cost required, this application provides a double-layer resin injection pultrusion equipment and process.

[0005] The above-mentioned technical objective of this application is achieved through the following technical solution: A double-layer resin injection pultrusion device includes a platform with legs fixedly connected to the bottom of the platform and a positioning component on the top of the platform. A mold assembly is provided on the outside of the positioning component. The mold assembly includes an outer mold abutting against the outside of the positioning component. A first injection port is opened inside the outer mold. A connecting plate is fixedly connected inside the outer mold. An inner mold is fixedly connected to the outside of the connecting plate. A first transmission pipe is fixedly connected inside the inner mold. A diverter pipe is fixedly connected to the end of the first transmission pipe. The end of the diverter pipe is fixedly connected to the inside of the inner mold. A second injection port is opened inside the inner mold. The end of the diverter pipe is connected to the inside of the second injection port. The first and second injection ports are funnel-shaped.

[0006] By adopting the above scheme, the first type of resin is transported to the inside of the distribution pipe through the first transfer pipe, and then transported to the gap between the outer mold and the inner mold through the second injection port, so that the first type of resin impregnates the glass fiber in the gap. After impregnation, the second type of resin can be injected into the gap through the first injection port, so that the second type of resin surrounds the first type of resin and glass fiber, thereby forming a shell. Because the second type of resin has corrosion resistance and aging resistance, the sanding and painting operations can be reduced after the two types of resin are molded, thereby reducing the time and cost required in the later stages and improving production efficiency.

[0007] Preferably, the positioning component includes a mounting plate fixedly connected to the top of the platform, a first screw fixedly connected to the top of the mounting plate, a pressure plate slidably connected to the outside of the first screw, and a nut threadedly connected to the outside of the first screw.

[0008] By adopting the above scheme, the outer mold is placed on the support plate, then the pressure plate is pressed onto the outer mold, and then the nut is rotated to fix the position of the pressure plate, thereby fixing the position of the outer mold.

[0009] Preferably, the positioning component further includes a first upright plate fixedly connected to the top of the support plate, a second screw threadedly connected inside the first upright plate, a positioning plate rotatably connected to one end of the second screw, and a first knob fixedly connected to the other end, and the outer side of the positioning plate is slidably connected to the inside of the support plate.

[0010] By adopting the above scheme, rotating the first knob drives the second screw to rotate, which in turn moves the positioning plate to clamp the outer mold, thereby ensuring the stability of the outer mold and improving the stability of the device.

[0011] Preferably, the top of the platform is provided with an injection assembly, which includes two second upright plates fixedly connected to the top of the platform. A stabilizing frame is fixedly connected to the outer side of one of the second upright plates, and injection blocks are fixedly connected to both ends of the stabilizing frame.

[0012] By adopting the above scheme, the injection block can be supported by a stabilizing frame, thereby improving stability.

[0013] Preferably, the injection assembly further includes an injection tube fixedly connected to the inside of the injection block, the end of the injection tube being fixedly connected to the top of the outer mold, the inside of the injection tube being connected to the inside of the first injection port, and the end of the injection block being fixedly connected to a second transmission tube, the outside of the second transmission tube being fixedly connected to the inside of the second vertical plate.

[0014] By adopting the above scheme, the second type of resin is transported to the inside of the injection block through the second transmission pipe, thereby transporting the second type of resin into the inside of the injection pipe, and then the resin is transported into the gap through the first injection port, thereby surrounding the first type of resin and glass fiber to form a protective layer.

[0015] Preferably, the top of the platform is provided with a bottom heating component, the bottom heating component includes a top column fixedly connected to the top of the platform, a top plate fixedly connected to the top of the top column, a lower heating plate fixedly connected to the top of the top plate, and the top of the lower heating plate abutting against the outer side of the outer mold.

[0016] By adopting the above solution, the top plate is supported by the top column, which in turn supports the lower heating plate, allowing the lower heating plate to heat the outer mold smoothly, thereby accelerating the resin hardening speed.

[0017] Preferably, a top heating assembly is provided on the outer side of the outer mold. The top heating assembly includes an upper heating plate that abuts against the top of the outer mold, a lower pressure plate that is fixedly connected to the top of the upper heating plate, a sliding rod that is fixedly connected to the top of the lower pressure plate, and a stabilizing plate that is fixedly connected to the top of the sliding rod.

[0018] By adopting the above solution, the outer mold is heated by the upper heating plate, thereby improving the speed of product shaping.

[0019] Preferably, the top heating assembly further includes a third screw rotatably connected to the top of the lower pressure plate. The third screw passes through the stabilizing plate and is slidably connected. A second knob is fixedly connected to the top of the third screw. A mounting bracket is threadedly connected to the outside of the third screw. The mounting bracket is slidably connected to the outside of the slide rod inside. The mounting bracket is fixedly connected to the top of the platform.

[0020] By adopting the above scheme, rotating the second knob drives the third screw to rotate, which in turn moves the lower pressure plate, causing the bottom of the upper heating plate to abut against the top of the outer mold. This facilitates heating of the outer mold, thereby accelerating the hardening speed of the resin and thus accelerating the molding speed of the product, thereby improving production efficiency.

[0021] The specific process steps of the double-layer resin injection pultrusion process described in this invention are as follows: S1: First, pass glass fiber, etc., through the gap between the outer mold and the inner mold, and extend it to the ends of the outer mold and the inner mold; S2: After the glass fiber and other materials are placed, the first type of resin can be injected into the gap between the outer mold and the inner mold through the first transmission pipe and the distribution pipe, so that the resin can impregnate the glass fiber. S3: After the first resin has been impregnated, the second resin is transferred to the injection tube through the second transfer tube and, together with the first injection port, the second resin fills the gap between the first resin and the outer mold and encapsulates the first resin. S4: After the coating is complete, the resin is heated by the cooperation of the upper and lower heating plates, thereby hardening the resin. S5: Then, the hardened product is moved by the pulling component to complete the production of the product. The product is then cut by the cutting device to adapt the product to different requirements.

[0022] In summary, this application has the following technical effects: 1. The first type of resin is transferred to the inside of the distribution pipe through the first transfer pipe, and then transferred to the gap between the outer mold and the inner mold through the second injection port, so that the first type of resin impregnates the glass fiber in the gap. After impregnation, the second type of resin can be injected into the gap through the first injection port, so that the second type of resin surrounds the first type of resin and glass fiber, thereby forming a shell. Because the second type of resin has corrosion resistance and aging resistance, the sanding and painting operations can be reduced after the two types of resin are formed, thereby reducing the time and cost required in the later stage and improving production efficiency. 2. By placing the outer mold on the support plate, pressing the pressure plate onto the outer mold, and then turning the nut to fix the position of the pressure plate, the position of the outer mold is fixed. Then, turning the first knob drives the second screw to rotate, which in turn moves the positioning plate to clamp the outer mold, thereby ensuring the stability of the outer mold and improving the stability of the device. 3. By rotating the second knob, the third screw is driven to rotate, which in turn drives the lower pressure plate to move, thereby causing the bottom of the upper heating plate to abut against the top of the outer mold. This facilitates heating of the outer mold, thereby accelerating the hardening speed of the resin and thus accelerating the molding speed of the product, thereby improving production efficiency. Attached Figure Description

[0023] Figure 1 This is an overall side view of the structure of this application; Figure 2 This is another perspective structural diagram of the entire application; Figure 3 This is a bottom view of the mold assembly structure of this application; Figure 4 This is a cross-sectional view of the mold assembly of this application; Figure 5 This is a breakdown diagram of the positioning component in this application; Figure 6 This is a side view of the glue injection assembly of this application; Figure 7 This is a side view of the top heating assembly of this application; Figure 8 This is a bottom view of the bottom heating assembly of this application; Figure 9 This is the process flow diagram of this application.

[0024] In the diagram, 1. Platform; 2. Support leg; 3. Erection plate; 4. First screw; 5. Pressure plate; 6. Nut; 7. First upright plate; 8. Second screw; 9. Positioning plate; 10. First knob; 11. Outer mold; 12. First injection port; 13. Connecting plate; 14. Inner mold; 15. First transmission pipe; 16. Diverter pipe; 17. Second injection port; 18. Second upright plate; 19. Stabilizer; 20. Injection block; 21. Injection pipe; 22. Second transmission pipe; 23. Lower heating plate; 24. Top plate; 25. Top column; 26. Upper heating plate; 27. Lower pressure plate; 28. Slide rod; 29. ​​Stabilizer plate; 30. Third screw; 31. Second knob; 32. Mounting frame. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings.

[0026] Example 1 Please see Figure 1-6 As shown, a double-layer resin injection pultrusion device includes a platform 1, with a support leg 2 fixedly connected to the bottom of the platform 1. A positioning component is provided on the top of the platform 1, and a mold component is provided on the outside of the positioning component. The mold component includes an outer mold 11 that abuts against the outside of the positioning component. A first injection port 12 is opened inside the outer mold 11. A connecting plate 13 is fixedly connected inside the outer mold 11. An inner mold 14 is fixedly connected to the outside of the connecting plate 13. A first transmission pipe 15 is fixedly connected inside the inner mold 14. A diversion pipe 16 is fixedly connected to the end of the first transmission pipe 15. The end of the diversion pipe 16 is fixedly connected to the inside of the inner mold 14. A second injection port 17 is opened inside the inner mold 14. The end of the diversion pipe 16 is connected to the inside of the second injection port 17. The first injection port 12 and the second injection port 17 are funnel-shaped.

[0027] During operation, the first type of resin is transferred to the inside of the distribution pipe 16 through the first transfer pipe 15, and then transferred to the gap between the outer mold 11 and the inner mold 14 through the second injection port 17, so that the first type of resin impregnates the glass fiber in the gap. After impregnation, the second type of resin can be injected into the gap through the first injection port 12, so that the second type of resin surrounds the first type of resin and glass fiber, thereby forming a shell. Because the second type of resin has corrosion resistance and aging resistance, the sanding and painting operations can be reduced after the two types of resin are formed, thereby reducing the time and cost required in the later stages and improving production efficiency.

[0028] The positioning component includes a mounting plate 3 fixedly connected to the top of the platform 1, a first screw 4 fixedly connected to the top of the mounting plate 3, a pressure plate 5 slidably connected to the outside of the first screw 4, and a nut 6 threadedly connected to the outside of the first screw 4.

[0029] The positioning component also includes a first upright plate 7 fixedly connected to the top of the support plate 3. A second screw 8 is threadedly connected inside the first upright plate 7. One end of the second screw 8 is rotatably connected to a positioning plate 9, and the other end is fixedly connected to a first knob 10. The outer side of the positioning plate 9 is slidably connected to the inside of the support plate 3.

[0030] During operation, the outer mold 11 is placed on the support plate 3, and then the pressure plate 5 is pressed onto the outer mold 11. Then, the nut 6 is rotated to fix the position of the pressure plate 5, thereby fixing the position of the outer mold 11. Then, the first knob 10 is rotated to drive the second screw 8 to rotate, which in turn drives the positioning plate 9 to move, thereby clamping the outer mold 11, ensuring the stability of the outer mold 11, and thus improving the stability of the device.

[0031] The top of the platform 1 is equipped with a glue injection assembly, which includes two second upright plates 18 fixedly connected to the top of the platform 1. A stabilizing frame 19 is fixedly connected to the outside of one of the second upright plates 18, and injection blocks 20 are fixedly connected to both ends of the stabilizing frame 19.

[0032] The glue injection assembly also includes an injection tube 21 fixedly connected inside the injection block 20. The end of the injection tube 21 is fixedly connected to the top of the outer mold 11, and the inside of the injection tube 21 is connected to the inside of the first injection port 12. The end of the injection block 20 is fixedly connected to a second transmission tube 22, and the outside of the second transmission tube 22 is fixedly connected to the inside of the second vertical plate 18.

[0033] During operation, the second type of resin is transferred to the inside of the injection block 20 through the second transfer pipe 22, thereby transferring the second type of resin to the inside of the injection pipe 21, and then transferring the resin to the gap through the first injection port 12, thereby surrounding the first type of resin and glass fiber to form a protective layer.

[0034] Example 2 Please see Figure 7-9 As shown in the first embodiment, as another implementation of the present invention, a bottom heating assembly is provided on the top of the platform 1. The bottom heating assembly includes a top column 25 fixedly connected to the top of the platform 1, a top plate 24 fixedly connected to the top of the top column 25, a lower heating plate 23 fixedly connected to the top of the top plate 24, and the top of the lower heating plate 23 abutting against the outer side of the outer mold 11.

[0035] During operation, the top plate 24 is supported by the top column 25, which in turn supports the lower heating plate 23, allowing the lower heating plate 23 to heat the outer mold 11 smoothly, thereby accelerating the resin hardening speed.

[0036] The outer mold 11 is provided with a top heating component, which includes an upper heating plate 26 that abuts against the top of the outer mold 11. A lower pressure plate 27 is fixedly connected to the top of the upper heating plate 26. A slide rod 28 is fixedly connected to the top of the lower pressure plate 27. A stabilizing plate 29 is fixedly connected to the top of the slide rod 28.

[0037] The top heating assembly also includes a third screw 30 rotatably connected to the top of the lower pressure plate 27. The third screw 30 passes through the stabilizing plate 29 and is slidably connected. A second knob 31 is fixedly connected to the top of the third screw 30. A mounting bracket 32 ​​is threadedly connected to the outside of the third screw 30. The inside of the mounting bracket 32 ​​is slidably connected to the outside of the slide bar 28. The mounting bracket 32 ​​is fixedly connected to the top of the platform 1.

[0038] During operation, rotating the second knob 31 drives the third screw 30 to rotate, which in turn moves the lower pressure plate 27, causing the bottom of the upper heating plate 26 to come into contact with the top of the outer mold 11. This facilitates heating of the outer mold 11, thereby accelerating the hardening speed of the resin and thus accelerating the molding speed of the product, thereby improving production efficiency.

[0039] The present invention provides a two-layer resin injection pultrusion process, the specific process steps of which are as follows: S1: First, pass glass fiber or the like through the gap between the outer mold 11 and the inner mold 14, and extend it to the ends of the outer mold 11 and the inner mold 14; S2: After the glass fiber and other materials are placed, the first type of resin can be injected into the gap between the outer mold 11 and the inner mold 14 through the first transmission pipe 15 and the diversion pipe 16, so that the resin can impregnate the glass fiber. S3: After the first resin has been impregnated, the second resin is transferred to the injection tube 21 through the second transfer tube 22, and in conjunction with the first injection port 12, the second resin fills the gap between the first resin and the outer mold 11 and encapsulates the first resin. S4: After the coating is completed, the resin is heated by the cooperation of the upper heating plate 26 and the lower heating plate 23, thereby hardening the resin. S5: Then, the hardened product is moved by the pulling component to complete the production of the product. The product is then cut by the cutting device to adapt the product to different requirements.

[0040] The working principle is as follows: the first type of resin is transferred to the inside of the distribution pipe 16 through the first transfer pipe 15, and then transferred to the gap between the outer mold 11 and the inner mold 14 through the second injection port 17, so that the first type of resin impregnates the glass fiber in the gap. After impregnation, the second type of resin can be injected into the gap through the first injection port 12, so that the second type of resin surrounds the first type of resin and glass fiber, thereby forming a shell. Because the second type of resin has corrosion resistance and aging resistance, the sanding and painting operations can be reduced after the two types of resin are formed, thereby reducing the time and cost required later and improving production efficiency.

[0041] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A double-layer resin injection pultrusion device, comprising a platform (1), the bottom of the platform (1) is fixedly connected with a supporting leg (2); characterized in that The top of the platform (1) is provided with a positioning assembly, the outer side of the positioning assembly is provided with a mold assembly, the mold assembly comprises an outer mold (11) abutting the outer side of the positioning assembly, and the inner side of the outer mold (11) is provided with a first injection inlet (12); The inner side of the outer mold (11) is fixedly connected with a connecting plate (13), the outer side of the connecting plate (13) is fixedly connected with an inner mold (14), the inner side of the inner mold (14) is fixedly connected with a first transmission pipe (15), and the end of the first transmission pipe (15) is fixedly connected with a shunt pipe (16); The end of the shunt pipe (16) is fixedly connected with the inner side of the inner mold (14), the inner side of the inner mold (14) is provided with a second injection inlet (17), the end of the shunt pipe (16) is in communication with the inner side of the second injection inlet (17), and the first injection inlet (12) and the second injection inlet (17) are trumpet-shaped.

2. A dual layer resin infusion pultrusion apparatus as claimed in claim 1, wherein: The positioning assembly comprises an erecting plate (3) fixedly connected to the top of the platform (1), the top of the erecting plate (3) is fixedly connected with a first screw rod (4), the outer side of the first screw rod (4) is slidably connected with a pressing plate (5), and the outer side of the first screw rod (4) is threadedly connected with a nut (6).

3. A dual layer resin infusion pultrusion apparatus as claimed in claim 2, wherein: The positioning assembly further comprises a first vertical plate (7) fixedly connected to the top of the erecting plate (3), the inner side of the first vertical plate (7) is threadedly connected with a second screw rod (8), one end of the second screw rod (8) is rotatably connected with a positioning plate (9), the other end of the second screw rod (8) is fixedly connected with a first knob (10), and the outer side of the positioning plate (9) is slidably connected with the inner side of the erecting plate (3).

4. A dual layer resin infusion pultrusion apparatus as claimed in claim 3, wherein: The top of the platform (1) is provided with a glue injection assembly, the glue injection assembly comprises two second vertical plates (18) fixedly connected to the top of the platform (1), the outer side of one of the second vertical plates (18) is fixedly connected with a stabilizing frame (19), and the two ends of the stabilizing frame (19) are fixedly connected with injection blocks (20).

5. A dual layer resin infusion pultrusion apparatus as claimed in claim 4, wherein: The glue injection assembly further comprises an injection pipe (21) fixedly connected to the inner side of the injection block (20), the end of the injection pipe (21) is fixedly connected with the top of the outer mold (11), the inner side of the injection pipe (21) is in communication with the inner side of the first injection inlet (12), the end of the injection block (20) is fixedly connected with a second transmission pipe (22), and the outer side of the second transmission pipe (22) is fixedly connected with the inner side of the second vertical plate (18).

6. A dual layer resin infusion pultrusion apparatus as claimed in claim 5, wherein: The top of the platform (1) is provided with a bottom heating assembly, the bottom heating assembly comprises a top column (25) fixedly connected to the top of the platform (1), the top of the top column (25) is fixedly connected with a top plate (24), the top of the top plate (24) is fixedly connected with a lower heating plate (23), and the top of the lower heating plate (23) abuts the outer side of the outer mold (11).

7. A dual layer resin infusion pultrusion apparatus as claimed in claim 6, wherein: The outer mold (11) is provided with a top heating assembly, the top heating assembly comprises an upper heating plate (26) abutting to the top of the outer mold (11), the upper heating plate (26) is fixedly connected with a pressing plate (27) at the top, the pressing plate (27) is fixedly connected with a slide rod (28) at the top, and the slide rod (28) is fixedly connected with a stable plate (29) at the top.

8. A dual layer resin infusion pultrusion apparatus as claimed in claim 7, wherein: The top heating assembly further comprises a third screw rod (30) rotatably connected to the top of the pressing plate (27), the third screw rod (30) penetrates through the stable plate (29) and is slidably connected, the third screw rod (30) is fixedly connected with a second knob (31) at the top, the third screw rod (30) is threadedly connected with a mounting rack (32) outside, the mounting rack (32) is slidably connected with the slide rod (28) inside, and the mounting rack (32) is fixedly connected to the top of the platform (1).

9. A double-layer resin injection pultrusion process, which uses the double-layer resin injection pultrusion device of claim 8, characterized in that: S1: first pass the glass fiber through the gap between the outer mold (11) and the inner mold (14), and extend to the end of the outer mold (11) and the inner mold (14); S2: after the glass fiber is placed, the first resin can be injected into the gap between the outer mold (11) and the inner mold (14) through the first transmission pipe (15) and the shunt pipe (16), so that the resin infiltrates the glass fiber; S3: after the first resin is infiltrated, the second resin is transmitted to the injection pipe (21) inside through the second transmission pipe (22), and cooperates with the first injection port (12), so that the second resin fills the gap between the first resin and the outer mold (11), and wraps the first resin; S4: after wrapping, the resin is heated by cooperation of the upper heating plate (26) and the lower heating plate (23), so that the resin is hardened; S5: then the hardened product is moved by the pulling assembly, so as to complete the production of the product, and then the product is cut by the cutting device, so that the product meets different requirements.

Images