Extrusion die head for fiber reinforced plastic geobelt

Abstract

The utility model relates to the technical field of extrusion die heads, in particular to a fiber reinforced plastic geotechnical tape extrusion die head which comprises a die body, and at least two mixing cavities are formed in the die body; the distribution plate is provided with flow channels communicated with the feeding port, the number of the flow channels is equal to that of the mixing cavities, the feeding port is communicated with the mixing cavities through the flow channels, and the fiber distribution mold and the composite forming mold which are of a two-petal type structure are correspondingly buckled on the two sides of the mixing cavity mold body respectively. The composite forming die and the fiber distribution die are connected with the die body through fixing bolts and are convenient to disassemble; the mold can produce a plurality of fiber reinforced plastic geotechnical belts at the same time, the fiber distribution mold and the composite forming mold are of a two-section split structure, installation can be achieved without threading, time is saved, disassembly, assembly and maintenance can be completed without cutting off fibers when the fibers are broken, time, labor and raw materials are saved, production efficiency can be effectively improved, and production cost is reduced.

Description

Technical field:

[0001] The present application relates to the technical field of extrusion dies, and in particular to an extrusion die for a fiber reinforced plastic geotextile. Background technology:

[0002] Chinese invention patent application number 201510697382.2 - a continuous fiber cloth or fiber cloth sleeve multilayer co-extrusion die head die, comprising a composite die head for connecting to a main extruder, and a main material flow channel for connecting to the main extruder is provided on the composite die head;

[0003] A composite outer mold for connecting to the auxiliary extruder, wherein an auxiliary material flow channel for communicating with the auxiliary extruder is provided on the composite outer mold;

[0004] The core mold is threadedly connected to the compound die head;

[0005] The mouth die is sleeved outside the core die and fixed by the composite outer die through bolts, a first flow channel is formed between the mouth die and the composite outer die, and a second flow channel is formed between the mouth die and the core die;

[0006] The die head pressing plate is sleeved on the composite outer die and connected to the composite die head through bolts;

[0007] The die comprises a circular ring-shaped head and a circular tubular body, the outer surface of the head is provided with at least one cloth-penetrating hole, and the body is correspondingly provided with at least one cloth-penetrating channel connected with the cloth-penetrating hole; the continuous fiber cloth or the fiber cloth sleeve enters the cloth-penetrating channel through the cloth-penetrating hole, intersects with the resin from the main material flow channel and the auxiliary material flow channel at the port of the die and is evenly coated, and finally forms a fiber-reinforced plastic pipe or rod with a multi-layer composite structure.

[0008] This patented structure is a one-in-one-out structure, that is, there is a single flow channel from the raw material inlet to the molding outlet. The fibers must be pre-threaded before installation, which greatly increases the difficulty and time of installation. Once the fiber breaks, the machine must be stopped and the mold must be removed. When removing the mold, all fibers need to be cut off, resulting in waste of raw materials, increased production costs, and reduced production efficiency. Utility model content:

[0009] In order to solve the above technical problems, the utility model provides a fiber reinforced plastic geotextile extrusion die head. The technical solution adopted by the utility model is:

[0010] A fiber reinforced plastic geotextile extrusion die head, comprising:

[0011] A mold body, wherein the mold body is provided with at least two mixing cavities;

[0012] A distribution plate is provided with a feed inlet, and a flow channel is provided on the distribution plate, the number of the flow channels is equal to the number of the mixing chambers, and the feed inlet is communicated with the mixing chamber through the flow channel;

[0013] A fiber distribution mold with a two-flap structure, the fiber distribution mold is buckled on a mold body on one side of the mixing chamber;

[0014] A composite molding die of a two-piece structure, the composite molding die is buckled and fixed to a die body on the other side of the mixing cavity;

[0015] The fixing bolts, the composite forming mold and the fiber distribution mold are connected to the mold body through the fixing bolts;

[0016] Flow adjustment bolts, the number of flow adjustment bolts is the same as the number of mixing chambers, the flow adjustment bolts are connected to the distribution plate through a threaded structure, and one end of a preset number of flow adjustment bolts extends into the flow channel.

[0017] Furthermore, the number of mixing cavities is 4, and the fiber distribution mold and the composite molding mold are buckled on the mold bodies on both sides of the 4 mixing cavities one by one;

[0018] Planes are symmetrically arranged on both sides of the fiber distribution mold, and the planes on one side of adjacent fiber distribution molds are in contact with each other.

[0019] Further, the fiber distribution mold includes an upper fiber distribution half mold and a lower fiber distribution half mold that are symmetrically arranged;

[0020] The composite forming mold comprises an upper composite forming half mold and a lower composite forming half mold which are symmetrically arranged.

[0021] Furthermore, the lower fiber distribution half mold is provided with a right positioning hole, the lower composite molding half mold is provided with a left positioning hole, the mold body is provided with a middle positioning hole, the right positioning hole, the left positioning hole and the middle positioning hole are coaxially arranged, and positioning pieces are inserted into the three.

[0022] Further, the positioning member includes a hexagon socket head screw and a cylindrical nut, and the hexagon socket head screw and the cylindrical nut are connected by thread engagement;

[0023] The head of a hexagonal cylindrical head screw is embedded in one of the right positioning hole and the left positioning hole, and a cylindrical nut is embedded in the other of the right positioning hole and the left positioning hole.

[0024] Furthermore, a plurality of through holes for the fibers to pass through are provided on the fiber distribution mold, and an opening for the fiber reinforced plastic geotextile belt to pass through is provided on the composite molding mold.

[0025] The beneficial effects of the utility model are as follows: the mold can produce multiple fiber reinforced plastic geotextiles at the same time, the discharge volume of each can be adjusted individually, and the group of flow channels can also be completely closed when not in use. The fiber distribution mold and the composite molding mold are two-petal split structures, which can be installed without threading, saving time, and when fiber breakage occurs, disassembly and maintenance can be completed without cutting the fibers, saving time and effort, saving raw materials, and can effectively improve production efficiency and reduce production costs. Description of the drawings:

[0026] Figure 1 It is a main structural schematic diagram of the utility model.

[0027] Figure 2 This utility model Figure 1 Schematic diagram of the AA section structure.

[0028] Figure 3 It is a schematic diagram of the structure of the utility model from top view.

[0029] Figure 4 It is a schematic diagram of the upper fiber distribution half-mold structure of the utility model.

[0030] Figure 5 It is a schematic diagram of the upper composite forming half-mold structure of the utility model.

[0031] In the figure:

[0032] 1. Mold body, 2. Distribution plate, 3. Fiber distribution mold, 31. Upper fiber distribution half mold, 32. Lower fiber distribution half mold, 4. Composite molding mold, 41. Upper composite molding half mold, 42. Lower composite molding half mold, 5. Flow adjustment bolt, 6. Flow channel, 7. Feed inlet, 8. Mixing chamber, 9. Right positioning hole, 10. Left positioning hole, 11. Middle positioning hole, 12. Positioning piece, 13. Through hole, 14. Mouth. Specific implementation method:

[0033] In order to make the purpose, technical scheme and advantages of the implementation of the utility model clearer, the utility model will now be further described in detail with reference to the accompanying drawings and the following examples so that the public can better understand the implementation method of the utility model. The specific implementation scheme of the utility model is as follows:

[0034] A fiber reinforced plastic geotextile extrusion die head comprises a die body 1, the die body 1 is provided with at least two mixing chambers 8, four in the present embodiment, and two, three, five or six in other embodiments; a distribution plate 2 is provided with a feed port 7, the distribution plate 2 is provided with flow channels 6 communicating with the feed port 7, the number of flow channels 6 is equal to the number of mixing chambers 8, the feed port 7 is communicated with the mixing chamber 8 through the flow channels 6, a fiber distribution die 3 with a two-petal structure, a composite molding die 4 with a two-petal structure, the fiber distribution die 3 and the composite molding die 4 are respectively buckled on both sides of the die body 1 of the mixing chamber 8, the composite molding die 4 and the fiber distribution die 3 are connected to the die body 1 by fixing bolts for easy disassembly, the fiber distribution die 3 is provided with a plurality of through holes 13 for fibers to pass through, and the composite molding die 4 is provided with an opening 14 for the fiber reinforced plastic geotextile to pass through. This mold can produce multiple fiber reinforced plastic geobelts at the same time. The fiber distribution mold 3 and the composite molding mold 4 are in a two-petal split structure, which can be installed without threading, saving time. When fiber breakage occurs, disassembly and maintenance can be completed without cutting the fibers, saving time and effort, saving raw materials, and can effectively improve production efficiency and reduce production costs.

[0035] It should be noted that the fiber distribution mold 3 and the composite molding mold 4 are snapped into place one by one on the mold body 1 on both sides of the four mixing cavities 8; planes are symmetrically arranged on both sides of the fiber distribution mold 3, and the planes on one side of adjacent fiber distribution molds 3 are fitted together, so that the fiber distribution mold 3 can be relatively fixed to ensure that the through holes 13 of the fiber distribution mold 3 on the same side are in the same horizontal plane to avoid deflection.

[0036] Furthermore, the fiber distribution mold 3 includes an upper fiber distribution half mold 31 and a lower fiber distribution half mold 32 that are symmetrically arranged; the composite molding mold 4 includes an upper composite molding half mold 41 and a lower composite molding half mold 42 that are symmetrically arranged.

[0037] Flow adjustment bolts 5, the number of flow adjustment bolts 5 is the same as the number of mixing chambers 8, the flow adjustment bolts 5 are connected to the distribution plate 2 by a threaded structure, and one end of a preset number of flow adjustment bolts 5 extends into the flow channel 6, the discharge amount of each can be adjusted individually, and the group of flow channels can also be completely closed when not in use.

[0038] It should be noted that, based on the above embodiments, in another embodiment, the lower fiber distribution half mold 32 is provided with a right positioning hole 9, the lower composite molding half mold 42 is provided with a left positioning hole 10, the mold body 1 is provided with a middle positioning hole 11, the right positioning hole 9, the left positioning hole 10 and the middle positioning hole 11 are coaxially arranged, and positioning parts 12 are penetrated by the three. This design ensures that the through hole 13 of the fiber distribution mold 3 and the mouth 14 of the composite molding mold 4 are in the same plane, ensuring that the fiber is in the middle position of the fiber reinforced plastic geotextile.

[0039] Specifically, the positioning member 12 includes a hexagon socket head screw and a cylindrical nut, which are connected by threaded engagement; the head of the hexagon socket head screw is embedded in one of the right positioning hole 9 and the left positioning hole 10, and the cylindrical nut is embedded in the other of the right positioning hole 9 and the left positioning hole 10. The hexagon socket head screw is used to prevent the fiber distribution mold 3 and the composite molding mold 4 from being deflected during installation, and the installation is convenient.

[0040] The working principle and working process of the utility model are as follows: the molten material enters the flow channel 6 through the feed port 7, and then enters the mixing chamber 8. At this time, the fiber enters the mixing chamber 8 through the through hole 13 to mix with the molten material, and then goes out through the mouth 14 to complete the splicing work of the fiber reinforced plastic geotextile.

[0041] When fiber breakage occurs, remove the positioning piece 12 and the fixing bolts on the upper fiber distribution half mold 31 and the upper composite molding half mold 41, then remove the upper fiber distribution half mold 31 and the upper composite molding half mold 41, clean the molten material inside the mixing chamber 8, replace the broken fibers with new fibers, and then install the upper fiber distribution half mold 31 and the upper composite molding half mold 41 to complete the operation.

[0042] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "front", "back", "lower left", "upper right", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Although the present invention has been described according to a limited number of embodiments, those skilled in the art, with the benefit of the above description, should understand that other embodiments can be conceived within the scope of the present invention described thereby.

Claims

1. A fiber reinforced plastic geotextile extrusion die head, It is characterized in that include: A mold body (1), wherein the mold body (1) is provided with at least two mixing chambers (8); A distribution plate (2) is provided with a material inlet (7), the distribution plate (2) is provided with a flow channel (6) communicating with the material inlet (7), the number of the flow channels (6) is equal to the number of the mixing chambers (8), and the material inlet (7) is communicated with the mixing chamber (8) through the flow channel (6); A fiber distribution mold (3) with a two-flap structure, wherein the fiber distribution mold (3) is buckled onto a mold body (1) on one side of the mixing chamber (8); A composite molding die (4) of a two-piece structure, wherein the composite molding die (4) is fastened and fixed to a die body (1) on the other side of the mixing chamber (8); Fixing bolts, the composite molding die (4) and the fiber distribution die (3) are connected to the die body (1) via fixing bolts; Flow adjustment bolts (5), the number of the flow adjustment bolts (5) is the same as the number of the mixing chambers (8), the flow adjustment bolts (5) are connected to the distribution plate (2) via a threaded structure, and one end of a preset number of flow adjustment bolts (5) all extend into the flow channel (6).

2. A fiber reinforced plastic geotextile extrusion die head according to claim 1, Features: The number of the mixing chambers (8) is four, and the fiber distribution mold (3) and the composite molding mold (4) are buckled on the mold bodies (1) on both sides of the four mixing chambers (8) in a one-to-one correspondence; Planes are symmetrically arranged on both sides of the fiber distribution mold (3), and the planes on one side of adjacent fiber distribution molds (3) are in contact with each other.

3. A fiber reinforced plastic geotextile extrusion die head according to claim 2, Features: The fiber distribution mold (3) comprises an upper fiber distribution half mold (31) and a lower fiber distribution half mold (32) which are symmetrically arranged; The composite molding die (4) comprises an upper composite molding half-die (41) and a lower composite molding half-die (42) which are symmetrically arranged.

4. A fiber reinforced plastic geotextile extrusion die head according to claim 3, Features: The lower fiber distribution half mold (32) is provided with a right positioning hole (9), the lower composite molding half mold (42) is provided with a left positioning hole (10), the mold body (1) is provided with a middle positioning hole (11), the right positioning hole (9), the left positioning hole (10) and the middle positioning hole (11) are coaxially arranged, and positioning pieces (12) are inserted into the three.

5. A fiber reinforced plastic geotextile extrusion die head according to claim 4, Features: The positioning member (12) comprises a hexagon socket head screw and a cylindrical nut, wherein the hexagon socket head screw and the cylindrical nut are connected by thread engagement; The head of a hexagonal cylindrical head screw is embedded in one of the right positioning hole (9) and the left positioning hole (10), and a cylindrical nut is embedded in the other of the right positioning hole (9) and the left positioning hole (10).

6. The fiber reinforced plastic geotextile extrusion die head according to claim 1, Features: The fiber distribution mold (3) is provided with a plurality of through holes (13) for fibers to pass through, and the composite molding mold (4) is provided with an opening (14) for the fiber reinforced plastic geotextile belt to pass through.

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