Production line and production process of co-extrusion profile

Abstract

The invention belongs to the technical field of fiber reinforced resin special-shaped profile production, and provides a production line and a production process of a co-extrusion profile, and the production line of the co-extrusion profile comprises a positioning yarn splitting frame, a yarn guiding frame, a yarn guiding frame and a yarn guiding frame, the yarn penetrating and gum dipping frame is used for conducting gum dipping on the yarn conveyed by the positioning yarn splitting frame, and the yarn penetrating and gum dipping frame is further used for installing a felt roll; the mold fixing area is provided with two mold supports, the mold supports are used for fixing a forming mold of the galvanized steel sheet reinforced special-shaped profile, and the yarn inlet side of the forming mold is fixedly connected with a pre-forming mold frame; the device further comprises traction equipment and cutting and discharging equipment. The galvanized steel plate roll is arranged between the yarn and the felt, so that the service life of the formed special-shaped profile can be guaranteed; according to the production process, the galvanized steel plate roll placing racks are arranged at different positions of the forming equipment according to different produced profiles, so that the equipment is more flexible in the production process.

Description

Technical Field

[0001] The present invention relates to the technical field of fiber reinforced resin special-shaped profile production, in particular to a production line and production process of co-extrusion profiles. Background Art

[0002] The special-shaped profiles in the current market are mainly made of plastic products. The profiles produced are not strong enough. If they are exposed to outdoor environments for a long time, their service life will be greatly shortened. In addition, the equipment of existing production lines on the market is not flexible enough and cannot be changed according to the products produced.

[0003] Application publication number CN101050684A discloses a metal-reinforced fiberglass window pultruded profile and its production method. The profile is formed of at least two longitudinal thin walls and at least two transverse thin walls, forming a slender rod with a cavity. A metal strip is located within at least one of the thin walls. The cross-section of the thin wall, from the outside to the inside, comprises fiber mat, fiber cloth, fiber bundle, metal strip, and fiber cloth. Each of these layers is impregnated and cured with a resin mixture. This invention addresses the issues of weak transverse strength and insufficient grip on screw fasteners in fiberglass profiles. It also addresses the high production and processing costs of metal-reinforced fiberglass window pultruded profiles. However, the metal strip's installation position cannot be changed depending on the structure, pre-forming adjustment mold, and thermoforming mold. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a production line and a production process for a co-extrusion profile, which solve the problems raised in the above background technology.

[0005] The technical solutions of the present invention are as follows:

[0006] In one aspect, the present invention provides a production line for co-extrusion profiles, comprising:

[0007] A positioning yarn distribution frame, which is used to position and place the yarn rolls, and a guide roller and a guide plate are provided on the yarn outlet side of the positioning yarn distribution frame;

[0008] The yarn threading and dipping frame is used to dip the yarn transmitted from the positioning yarn distribution frame, and the yarn threading and dipping frame is also used to install the felt roll;

[0009] A mold fixing area, on which two mold brackets are provided, and the mold brackets are used to fix the forming mold of the galvanized steel plate reinforced special-shaped profile, and the yarn feeding side of the forming mold is fixedly connected to the preforming mold frame;

[0010] A galvanized steel sheet coil placement rack, wherein the galvanized steel sheet coil placement rack is used to place galvanized steel sheet coils;

[0011] A traction device, which is used to pull the profile that has been solidified and formed by the forming mold;

[0012] Cutting and blanking equipment: the profiles pulled by the traction equipment are cut to a fixed length by the cutting and blanking equipment and then turned over for blanking.

[0013] Furthermore, at least one of the galvanized steel sheet roll placement racks is arranged on one side of the positioning yarn distribution rack.

[0014] Furthermore, the galvanized steel plate roll placement rack includes a vertical rod, a sleeve, a connecting rod, a connecting tube, a pressure rod, a spring and a nut. The sleeve is rotatably connected to the upper end of the vertical rod. Several connecting rods are arranged circumferentially on the sleeve. The connecting tube is fixedly connected to one side of the connecting rod. The pressure rod is detachably installed on the connecting tube. The bottom end of the pressure rod is threadedly connected to a nut, and a spring is sleeved on the pressure rod.

[0015] Furthermore, the galvanized steel sheet coil placement rack is a fixed roller that is detachably mounted on the upper end of the yarn threading and dipping rack.

[0016] Furthermore, the upper end of the yarn threading and dipping frame is fixedly connected with a clamping plate, a 7-shaped clamping groove is provided on the clamping plate, and the fixed roller is rotatably connected in the clamping groove; the fixed roller is provided with a clamping groove relative to the clamping groove.

[0017] Furthermore, symmetrical strip grooves are provided at both ends of the fixed roller, and symmetrical ratchets are provided in the strip grooves on both sides. Limiting structures that cooperate with the ratchets are provided at both ends of the fixed roller, and the limiting structures on both sides can limit the galvanized steel sheet coil set on the fixed roller.

[0018] Furthermore, the limiting structure includes a moving block slidably connected to the fixed roller, a second threaded rod threadedly connected to the moving block, an N-shaped frame rotatably connected to the bottom end of the second threaded rod, and a pawl rotatably connected to the N-shaped frame, and the pawl cooperates with the ratchet.

[0019] Compared with the prior art, the beneficial effects of the co-extrusion profile production line provided by the present invention are as follows: according to the different profiles produced, galvanized steel sheet coil placement racks are set at different positions of the forming equipment, making the equipment more flexible during the production process; the galvanized steel sheet coils placed on the galvanized steel sheet coil placement racks clamp the galvanized steel sheets between the yarn and the felt, which can ensure the service life and hardness of the special-shaped profiles after molding.

[0020] On the other hand, the present invention also provides a co-extrusion profile production process, comprising the following steps:

[0021] Step S1, raw material preparation, yarn rolls, felt rolls and galvanized steel sheet rolls are respectively installed on the positioning yarn distribution frame, yarn threading and dipping frame and galvanized steel sheet roll placement frame;

[0022] Step S2, preforming, pulling the yarn, felt roll and galvanized steel sheet on the yarn roll in step S1 to a preforming die frame for preforming, and during the pulling process, dipping the yarn in a yarn threading and dipping frame;

[0023] Step S3, heating and curing, inserting the yarn, felt roll and galvanized steel sheet preformed in step S2 into a forming mold for heating and curing to obtain the final profile;

[0024] Step S4, cutting and blanking: the final profile obtained in step S3 is pulled forward by a traction device to a cutting and blanking device, and the cutting and blanking device cuts the final profile to a fixed length and flips it for blanking.

[0025] Furthermore, the specifications of the raw materials prepared in step S1 are as follows: the specification of the yarn is 4800TeX, the number is 102; the specification of the felt is 300g / m 2 The width is 80mm-110mm, 230g / m 2 The width is 50-100mm; the thickness of the galvanized steel plate is 1.2mm and the width is 22-78mm.

[0026] Furthermore, the pulling speed of the pulling device is 139 mm / min; the temperature of the inlet zone of the forming mold is 110°C, the temperature of the middle zone is 130°C, and the temperature of the outlet zone is 145°C.

[0027] Compared with the prior art, the co-extrusion profile production process provided by the present invention has the following beneficial effects:

[0028] The fiber-reinforced resin composite galvanized steel plate profile obtained by inserting yarn, felt and galvanized steel plate into a forming mold for heating and curing has high strength, good shape and geometric dimensions, and maintains long-term stability, and has very good physical and mechanical properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of a co-extrusion profile production line;

[0030] Figure 2 A schematic diagram of the structure for positioning the creel to the mold fixing area;

[0031] Figure 3 Schematic diagram of the structure of the guide plate;

[0032] Figure 4 Schematic diagram of the structure of the guide roller;

[0033] Figure 5 This is a schematic structural diagram of the galvanized steel sheet coil placement rack in Example 1;

[0034] Figure 6 Schematic diagram of the structure of the guide wheel in Example 1;

[0035] Figure 7 This is an assembly diagram of the fixed roller and the clamping plate in Example 2;

[0036] Figure 8 is a cross-sectional view of the fixed roller and the limiting structure in Example 2;

[0037] Figure 9 Schematic diagram of the structure of the limiting structure in Example 2;

[0038] Figure 10 Schematic diagram of the assembly structure of the preforming mold frame and the forming mold of Example 1;

[0039] Figure 11 is a side view of the forming mold of Example 1;

[0040] Figure 12 Schematic diagram of the assembly structure of the preforming mold frame and the forming mold of Example 2;

[0041] Figure 13 is a side view of the forming mold of Example 2;

[0042] In the figure: 1. Positioning yarn splitting frame, 101. First fixed frame, 102. Placement plate, 103. Fixed plate, 104. Guide roller, 105. Guide plate, 106. Perforation, 2. Yarn threading and dipping frame, 201. Second fixed frame, 202. First yarn splitting plate, 203. Second yarn splitting plate, 204. Dipping tank, 205. Fixed roller, 2051. Strip groove, 2052. Ratchet, 3. Preformed mold frame, 4. Forming mold, 5. Placement table, 6. Mold bracket, 7. Transmission plate, 8. , guide wheel, 801, first threaded rod, 9, traction equipment, 10, cutting and blanking equipment, 1401, base, 1402, vertical rod, 1403, sleeve, 1404, connecting rod, 1405, connecting cylinder, 1406, pressure rod, 1407, spring, 1408, nut, 15, limiting structure, 1501, moving block, 1502, through hole, 1503, through groove, 1504, second threaded rod, 1505, N-shaped frame, 1506, rotating shaft, 1507, ratchet. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are also within the scope of protection of the present invention.

[0044] Example 1

[0045] See Figure 1-6 A production line for co-extrusion profiles, comprising: a positioning yarn frame 1, the positioning yarn frame 1 being used to position and place yarn rolls, and a guide roller 104 and a guide plate 105 being provided on the yarn outlet side of the positioning yarn frame 1;

[0046] The positioning yarn distribution frame 1 includes a first fixed frame 101, a placement plate 102, a guide roller 104 and a guide plate 105. Several layers of placement plates 102 are fixedly connected to the first fixed frame 101. The number of placement plates 102 on each layer is two on the left and right. A guide plate 105 is fixedly connected to the right side of each placement plate 102. Several perforations 106 are provided on the guide plate 105. The number of yarn rolls placed on the left placement plate 102 is the same as the number of perforations 106. The diameter of the perforations 106 is larger than the diameter of the yarn. The number of perforations 106 on the right guide plate 105 is twice that of the left guide plate 105; in order to prevent the yarn from getting tangled when being pulled, the yarn on the placement plate 102 is passed through the perforations 106 for positioning; a guide roller 104 is fixedly connected to the right side of the first fixed frame 101 relative to the guide plate 105, and both ends of the guide roller 104 are fixed to the fixed plate 103. The yarn passing through the perforations 106 is wound around the guide roller 104 for arranging, preparing for the next working area;

[0047] The yarn threading and dipping frame 2 is used to dip the yarn transmitted from the positioning yarn dividing frame 1, and the yarn threading and dipping frame 2 is also used to install the felt roll; the left and right sides of the yarn threading and dipping frame 2 are respectively provided with a first yarn dividing plate 202 and a second yarn dividing plate 203; the upper ends of the first yarn dividing plate 202 and the second yarn dividing plate 203 are fixedly connected to corresponding guide wheels 8;

[0048] The yarn threading and dipping frame 2 includes a second fixed frame 201, a first yarn dividing plate 202, a second yarn dividing plate 203 and a dipping tank 204. The first yarn dividing plate 202 and the second yarn dividing plate 203 are fixedly connected to the dipping tank 204. There is one first yarn dividing plate 202 and three second yarn dividing plates 203, which are installed side by side horizontally. Angle steels are fixedly connected to the two right ends of the second fixed frame 201, and a horizontal angle steel is fixedly connected between the two angle steels. The horizontal angle steel is used to fix the second yarn dividing plate 203. The yarn passes through the holes of the first yarn dividing plate 202, the dipping tank 204 and the holes of the second yarn dividing plate 203 from left to right in sequence.

[0049] A mold fixing area, wherein the mold fixing area is connected to the yarn threading and dipping frame 2 via a transmission plate 7. Two mold brackets 6 are provided on the mold fixing area. The two mold brackets 6 are fixedly connected to the placement table 5. The mold brackets 6 are used to fix the forming mold 4 of the galvanized steel plate reinforced special-shaped profile. The yarn feeding side of the forming mold 4 is fixedly connected to the preforming mold frame 3;

[0050] The galvanized steel coil placement rack is used to place the galvanized steel coil. The galvanized steel sheets of the galvanized steel coil, yarn and felt are heated and solidified together into the forming mold 4 to form the galvanized steel sheet reinforced special-shaped profile, which can ensure the service life and hardness of the special-shaped profile after forming.

[0051] A traction device 9 is used to pull the profile formed by the forming die 4;

[0052] The cutting and blanking equipment 10 is used to cut the profiles pulled by the traction equipment 9 to a fixed length and then flip them for blanking.

[0053] In this embodiment, at least one Figure 5 The galvanized steel sheet roll placement rack shown is arranged on one side of the positioning yarn distribution rack 1; the galvanized steel sheet roll placement rack includes a vertical rod 1402, a sleeve 1403, a connecting rod 1404, a connecting tube 1405, a pressure rod 1406, a spring 1407 and a nut 1408, the sleeve 1403 is rotatably connected to the upper end of the vertical rod 1402, and a plurality of connecting rods 1404 are arranged circumferentially on the sleeve 1403, the connecting tube 1405 is fixedly connected to one side of the connecting rod 1404, the pressure rod 1406 is detachably installed on the connecting tube 1405, the bottom end of the pressure rod 1406 is threadedly connected to the nut 1408, and the pressure rod 1406 is sleeved with a spring 1407.

[0054] Specifically, the number of the galvanized steel sheet coil placement racks is two, and the two galvanized steel sheet coil placement racks are placed side by side. The number of galvanized steel sheet coil placement racks can be increased according to actual production needs; the bottom end of the vertical rod 1402 is inserted into the base 1401 for fixation, and the base 1401 is fixed to the ground by expansion bolts;

[0055] There are four connecting rods 1404 on each vertical rod 1402. The four connecting rods 1404 are evenly distributed and fixed with the axis of the sleeve 1403 as the center of the circle. The distance between the outermost edges of the two symmetrical connecting rods 1404 is greater than the maximum diameter of the galvanized steel sheet coil (the maximum diameter of the galvanized steel sheet coil is the outer diameter of the galvanized steel sheet coil when it is not in use); the pressure rod 1406 is in the shape of a 7, the upper part of the pressure rod 1406 is a cross bar, and the lower part is a vertical support rod integrally formed with the cross bar. The bottom end of the support rod passes through the connecting tube 1405, and the support rod is provided with an external thread and is connected to the screw. The nuts 1408 cooperate with each other, the nut 1408 is threadedly connected to the lower end of the support rod extending through the connecting tube 1405, the two ends of the spring 1407 respectively abut the upper end of the nut 1408 and the bottom end of the connecting rod 1404, the support rod is slidably connected in the connecting tube 1405, the spring 1407 is an elastic spring, under the elastic force of the spring 1407, the pressure rod 1406 always has a tendency to move downward, so that the pressure rod 1406 can regularize the galvanized steel strip on the galvanized steel sheet coil to avoid the galvanized steel sheet coil from running;

[0056] When in the initial state, the spring 1407 is in an uncompressed state, and the upper side of the pressure rod 1406 and the upper side of the connecting rod 1404 contact each other; when in use, after the galvanized steel coil is installed, the spring 1407 is compressed, and the squeezing force of the spring 1407 drives the pressure rod 1406 to squeeze the galvanized steel coil downward;

[0057] When installing the galvanized steel coil, first remove the nut 1408 at the lower end of the pressure rod 1406 and the spring 1407, then pull the pressure rod 1406 out of the connecting tube 1405, then place the galvanized steel coil on the connecting rod 1404, and then assemble the four pressure rods 1406 onto the connecting tube 1405 in sequence, keeping the crossbar ends of the pressure rods 1406 extending radially outward from the sleeve 1403; the distance between the outer surface of the sleeve 1403 and the connecting tube 1405 is smaller than the radius of the inner ring of the galvanized steel coil, which can ensure that it is fixed to the connecting rod 1404;

[0058] The guide wheel 8 is rotatably connected to the first threaded rod 801. Nuts are provided on the upper and lower sides of the guide wheel 8 to facilitate adjustment of the position of the guide wheel 8 on the first threaded rod 801. By respectively providing two guide wheels 8 at similar distances at the upper ends of the first yarn dividing plate 202 and the second yarn dividing plate 203, the galvanized steel plate roll that is led out will not swing back and forth during transportation, and the distance between the two guide wheels 8 is greater than the thickness of the two galvanized steel plates.

[0059] In this embodiment, during the installation production process, the forming mold and the preforming mold frame 3 of this embodiment adopt Figure 10 and Figure 11The structure and assembly mode of the yarn rolls are arranged on the placement plate from left to right and pass through the perforation 106 of the guide plate 105, and are wound on the guide roller 104 for wiring, and then pass through the first yarn dividing plate 202, immersed in the glue in the dipping tank and the second yarn dividing plate 203 in turn. One end of the two galvanized steel sheet rolls is led out and passed through the guide wheel 8 to prevent displacement. The felt roll is installed at the upper end of the yarn threading and dipping rack. The number of felt rolls is increased or decreased according to actual production needs. The yarn, felt and galvanized steel sheet rolls are inserted from the yarn threading plate at the left end of the preforming mold frame 3, and finally enter the forming mold 4.

[0060] Example 2

[0061] This embodiment is another implementation based on Example 1. The difference between this embodiment and Example 1 lies in the installation position and structure of the galvanized steel sheet coil placement rack, as well as the difference in the forming mold and the pre-forming mold frame 3. The galvanized steel sheet coil placement rack is a fixed roller 205 detachably connected to the upper end of the yarn threading and dipping rack 2.

[0062] Specific, concrete, such as Figure 1 and Figure 7 As shown, the upper end of the yarn threading and dipping frame 2 is fixedly connected to a clamping plate, and a 7-shaped clamping groove is provided on the clamping plate, and a chamfer is provided at the right angle of the clamping groove to facilitate the rotation of the fixed roller 205; the length of the fixed roller 205 is greater than the distance between the two clamping plates; in order to prevent the fixed roller 205 from falling off the clamping plate during rotation, a clamping groove is provided at the position of the fixed roller 205 relative to the clamping groove; the width and depth of the clamping groove are consistent with the diameter and length of the groove; the number of the fixed rollers 205 is three and they are fixedly connected to the upper end of the yarn threading and dipping frame 2, the fixed roller 205 in the middle position is used to fix the galvanized steel sheet roll, and the fixed rollers 205 on both sides are used to fix the felt roll;

[0063] In this embodiment, during the installation production process, the forming mold and the preforming mold frame 3 of this embodiment adopt Figure 12 and Figure 13 The structure and assembly mode of the galvanized steel sheet roll is rotated on the fixed roller 205 installed in the middle position, and passes through the yarn threading plate on the preforming mold frame 3 in sequence according to the positions of the yarn holes, felt holes and galvanized steel sheet holes on the preforming mold frame 3, and finally enters the forming mold 4.

[0064] like Figure 8 As shown, symmetrical strip grooves 2051 are provided at both ends of the fixed roller 205 for mounting the galvanized steel sheet coil, and symmetrical ratchet teeth 2052 are provided in the strip grooves 2051 on both sides. Limiting structures 15 cooperating with the ratchet teeth 2052 are provided at both ends of the fixed roller 205, and the limiting structures 15 on both sides can limit the galvanized steel sheet coil set on the fixed roller 205.

[0065] Specifically, the fixed roller 205 between the grooves is divided into three parts, including a first smooth rod on both sides, a strip groove 2051 close to the smooth rods on both sides, and a second smooth rod between the two strip grooves 2051. The upper side surface of the ratchet 2052 in the strip groove 2051 is inclined downward from the second smooth rod to the direction of the first smooth rod; the diameter of the hollow cylinder in the galvanized steel sheet coil installed on the fixed roller 205 is consistent with the diameter of the fixed roller 205. In order to facilitate the adjustment of the position of the galvanized steel sheet coil on the fixed roller 205 and avoid the galvanized steel sheet strip on the galvanized steel sheet coil from moving along the fixed roller 205 when being pulled, a limiting structure 15 that can move left and right is set on both sides of the fixed roller 205. The limiting structure 15 can also limit and fix galvanized steel sheet coils of different widths.

[0066] like Figure 9 As shown, the limiting structure 15 includes a moving block 1501 slidingly connected to the fixed roller 205, a second threaded rod 1504 threadedly connected to the moving block 1501, an N-shaped frame 1505 rotatably connected to the bottom end of the second threaded rod 1504, and a pawl 1507 rotatably connected to the N-shaped frame 1505, and the pawl 1507 cooperates with the ratchet 2052.

[0067] Specifically, the moving block 1501 is a rectangular parallelepiped structure. A circular through-hole 1502 is formed at the bottom end of the moving block 1501. The diameter of the through-hole 1502 is consistent with the diameter of the fixed roller 205. A square through-slot 1503 is formed at the upper end of the moving block 1501 relative to the through-hole 1502. A threaded hole is formed at the upper end of the moving block 1501. The second threaded rod 1504 cooperates with the threaded hole. The end of the pawl 1507 is fixedly connected to a rotating shaft 1506. The two ends of the rotating shaft 1506 are rotatably connected to the vertical plates on both sides of the n-shaped frame 1505.

[0068] The second threaded rod 1504 is rotated upward (i.e., the limiting structure 15 is removed), so that the upper side surface of the N-shaped frame 1505 conflicts with the top wall of the through groove 1503, the pawl 1507 disengages from the ratchet 2052, and the height of the second threaded rod 1504 rising is greater than the height of the ratchet 2052; when the galvanized steel sheet coil is limited, in the initial state, the limiting structures 15 on both sides are on the first smooth rods on both sides, and the limiting structures 15 on both sides are pushed inward at the same time, and the second threaded rod 1504 is rotated downward, so that the pawl 1507 and the ratchet 2052 cooperate with each other. When pushed inward, the pawl 1507 will only move in one direction along the tilt direction of the ratchet 2052.

[0069] Example 3

[0070] Example 3 is another implementation of Example 2. The difference between Example 3 and Example 2 lies in the number of strip grooves 2051 and the number of limiting structures 15 .

[0071] In this embodiment, at least two pairs of strip grooves 2051 are provided on the fixed roller 205 for mounting the galvanized steel sheet coils, and the number of each pair of strip grooves 2051 is two. A group of symmetrical ratchet teeth 2052 is provided in each pair of strip grooves 2051, and the upper side surfaces of the ratchet teeth 2052 in each pair of strip grooves 2051 are inclined downward from the proximal ends of the two strip grooves 2051 to the distal ends of the two strip grooves 2051, and a pair of limiting structures 15 are correspondingly provided for each pair of strip grooves 2051; at this time, at least two rolls of galvanized steel sheet coils can be mounted on the fixed roller 205.

[0072] Example 4

[0073] The present invention also provides a production process for a co-extruded profile, which utilizes the co-extruded profile production line provided in Example 1, and comprises the following steps:

[0074] A co-extrusion profile production process comprises the following steps:

[0075] Step S1, raw material preparation, yarn rolls, felt rolls and galvanized steel sheet rolls are respectively installed on the positioning yarn distribution frame 1, the yarn threading and dipping frame 2 and the galvanized steel sheet roll placement frame;

[0076] Step S2, preforming, pulling the yarn, felt roll and galvanized steel sheet on the yarn roll in step S1 to the preforming die frame 3 for preforming, and during the pulling process, the yarn is dipped in glue at the yarn threading and dipping frame 2;

[0077] Step S3, heating and curing, inserting the yarn, felt roll and galvanized steel sheet preformed in step S2 into the forming mold 4 for heating and curing to obtain the final profile;

[0078] Step S4, cutting and blanking. The final profile obtained in step S3 is pulled forward by the traction device 9 to the cutting and blanking device 10, and the cutting and blanking device 10 cuts the final profile to a fixed length and flips it for blanking.

[0079] In this embodiment, the raw material specifications prepared in step S1 are: the yarn specification is 4800TeX, the number is 102; the felt specification is 300g / m 2 The width is 80mm-110mm, 230g / m 2 The width is 50-100mm; the thickness of the galvanized steel plate is 1.2mm and the width is 22-78mm;

[0080] The pulling speed of the pulling device 9 is 139 mm / min;

[0081] In this embodiment, the temperature of the inlet zone of the forming mold 4 is 110°C, the temperature of the middle zone is 130°C, and the temperature of the outlet zone is 145°C.

[0082] The fiber-reinforced resin composite galvanized steel plate profile prepared by the co-extrusion profile production process provided in this embodiment has high strength, a tensile strength of 150-300Mpa, a low deformation rate, and the product shape and geometric dimensions can remain long-lasting and stable. The heat deformation temperature can reach 186°C, does not soften at high temperatures, and does not change at -60°C, ensuring normal use at various ambient temperatures. The water absorption rate is less than 0.5%, which is suitable for use in humid environments. It has a low thermal insulation coefficient, significant energy saving, high anti-freeze-thaw cycle performance, and very good physical and mechanical properties.

[0083] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A co-extrusion profile production line, characterized in that: include: A positioning yarn distribution frame (1), the positioning yarn distribution frame (1) is used to position and place the yarn roll, and a guide roller (104) and a guide plate (105) are provided on the yarn outlet side of the positioning yarn distribution frame (1); A yarn threading and dipping frame (2), the yarn threading and dipping frame (2) is used to dip the yarn transmitted from the positioning yarn distribution frame (1), and the yarn threading and dipping frame (2) is also used to install the felt roll; A mold fixing area, wherein two mold brackets (6) are provided on the mold fixing area, and the mold brackets (6) are used to fix the forming mold (4) of the galvanized steel plate reinforced special-shaped profile, and the yarn feeding side of the forming mold (4) is fixedly connected to the preforming mold frame (3); A galvanized steel sheet coil placement rack, wherein the galvanized steel sheet coil placement rack is used to place galvanized steel sheet coils; A traction device (9), wherein the traction device (9) tractions the profile formed by curing in the forming mold (4); The cutting and blanking equipment (10) is used to cut the profile pulled by the traction equipment (9) to a fixed length and then flip it for blanking.

2. The co-extrusion profile production line according to claim 1, characterized in that: At least one of the galvanized steel sheet coil placement racks is arranged on one side of the positioning yarn distribution rack (1).

3. The co-extrusion profile production line according to claim 2, characterized in that: The galvanized steel sheet roll placement rack includes a vertical rod (1402), a sleeve (1403), a connecting rod (1404), a connecting tube (1405), a pressure rod (1406), a spring (1407) and a nut (1408), wherein the sleeve (1403) is rotatably connected to the upper end of the vertical rod (1402), a plurality of connecting rods (1404) are arranged circumferentially on the sleeve (1403), the connecting tube (1405) is fixedly connected to one side of the connecting rod (1404), the pressure rod (1406) is detachably mounted on the connecting tube (1405), the bottom end of the pressure rod (1406) is threadedly connected to the nut (1408), and the pressure rod (1406) is sleeved with a spring (1407).

4. The co-extrusion profile production line according to claim 1, characterized in that: The galvanized steel sheet coil placement rack is a fixed roller (205) detachably mounted on the upper end of the yarn threading and dipping rack (2).

5. The co-extrusion profile production line according to claim 4, characterized in that: The upper end of the yarn threading and dipping frame (2) is fixedly connected to a clamping plate, a 7-shaped clamping groove is provided on the clamping plate, the fixed roller (205) is rotatably connected in the clamping groove, and the fixed roller (205) is provided with a clamping groove relative to the position of the clamping groove.

6. The co-extrusion profile production line according to claim 5, characterized in that: Symmetrical strip grooves (2051) are provided at both ends of the fixed roller (205), and symmetrical ratchet teeth (2052) are provided in the strip grooves (2051) on both sides. Limiting structures (15) that cooperate with the ratchet teeth (2052) are provided at both ends of the fixed roller (205), and the limiting structures (15) on both sides can limit the galvanized steel sheet coil set on the fixed roller (205).

7. The co-extrusion profile production line according to claim 6, characterized in that: The limiting structure (15) comprises a moving block (1501) slidably connected to a fixed roller (205), a second threaded rod (1504) threadedly connected to the moving block (1501), an N-shaped frame (1505) rotatably connected to the bottom end of the second threaded rod (1504), and a pawl (1507) rotatably connected to the N-shaped frame (1505), wherein the pawl (1507) cooperates with the ratchet (2052).

8. A co-extrusion profile production process, comprising the co-extrusion profile production line according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step S1, raw material preparation, yarn rolls, felt rolls and galvanized steel sheet rolls are respectively installed on the positioning yarn distribution frame (1), the yarn threading and dipping frame (2) and the galvanized steel sheet roll placement frame; Step S2, preforming, pulling the yarn, felt roll and galvanized steel sheet on the yarn roll in step S1 to the preforming mold frame (3) for preforming, and during the pulling process, dipping the yarn in the yarn threading and dipping frame (2); Step S3, heating and curing, inserting the yarn, felt roll and galvanized steel sheet preformed in step S2 into a forming mold (4) for heating and curing to obtain a final profile; Step S4, cutting and blanking. The final profile obtained in step S3 is pulled forward by the traction device (9) to the cutting and blanking device (10), and the cutting and blanking device (10) cuts the final profile to a fixed length and flips it for blanking.

9. The co-extrusion profile production process according to claim 8, characterized in that: The raw material specifications prepared in step S1 are: the yarn specification is 4800TeX, the number is 102; the felt specification is 300g / m 2 The width is 80mm-110mm, 230g / m 2 The width is 50-100mm; the thickness of the galvanized steel plate is 1.2mm and the width is 22-78mm.

10. The co-extrusion profile production process according to claim 8, characterized in that: The pulling speed of the pulling device (9) is 139 mm / min; the temperature of the inlet zone of the forming die (4) is 110° C., the temperature of the middle zone is 130° C., and the temperature of the outlet zone is 145° C.

Images