A surface sandblasted continuous fiber reinforced thermoplastic resin composite material rib preparation device and method

Abstract

The present invention provides a surface sandblasted continuous fiber reinforced thermoplastic resin composite rod / rib preparation device and method, belonging to the field of composite rod / rib preparation. It solves the problem of difficult impregnation of large-sized thermoplastic profiles and poor interface bonding performance and low strength faced by thermoplastic FRP rods / ribs in concrete engineering structure applications. It includes a heating module 1, a heating module 2, a heating module 3, a sandblasting module and a curing molding module, which are sequentially installed on a fixed bottom plate from back to front. A pultrusion channel is opened on each module. One end of the continuous fiber reinforced thermoplastic prepreg tape passes through the pultrusion channels of the three heating modules, the sandblasting module and the curing molding module in sequence and is connected to a traction device; the traction device pulls the continuous fiber reinforced thermoplastic prepreg tape through each module to form a continuous fiber reinforced thermoplastic resin composite rod / rib. The present invention is suitable for the preparation of continuous fiber reinforced thermoplastic resin composite rods / ribs.

Description

Technical Field

[0001] The invention belongs to the field of continuous fiber reinforced thermoplastic resin composite material reinforcement preparation, and in particular relates to a surface sandblasting continuous fiber reinforced thermoplastic resin composite material reinforcement preparation device and method. Background Art

[0002] Traditional reinforced concrete structures will inevitably suffer from steel corrosion during long-term service, especially in humid and marine environments. Steel corrosion causes concrete rust expansion and cracking, degradation of the mechanical properties of reinforced steel bars, reduced durability, and degradation of the bonding performance with concrete, which are extremely harmful to the service and safety of civil engineering structures. Replacing steel bars with fiber-reinforced thermosetting resin-based composites (FRP) is recognized as one of the effective ways to solve the above problems.

[0003] Theoretical research on FRP composite materials at home and abroad and their application in civil engineering structures have shown that thermosetting FRP generally has many defects such as hardness and brittleness, poor toughness, poor impact resistance, poor environmental adaptability and non-recyclability. In addition, in actual engineering applications, thermosetting FRP materials cannot be bent and do not have the ability to be reprocessed on site, which restricts their application in many special forms of structures such as bending bars and stirrups. In order to solve the above problems, thermoplastic FRP rods / bars with excellent impact resistance, corrosion resistance, recyclability and multiple melt molding have emerged. In particular, its easy bending and convenient assembly characteristics provide solutions to the problems of steel corrosion in traditional reinforced concrete structures, the inflexibility and environmental pollution in the application of thermosetting FRP bars instead of steel bars. However, the surface of thermoplastic FRP rods / bars is smooth and flat, and the stiffness of the thermoplastic resin matrix is ​​low. In engineering applications, they will face problems such as poor bonding performance with the concrete interface and easy extrusion deformation.

[0004] There is a method for improving the interfacial bonding performance between continuous fiber reinforced thermoplastic composite rods / ribs and concrete. The purpose is to improve the interfacial bonding performance between thermoplastic FRP rods / ribs and concrete by extruding molten thermoplastic resin composite rods through a special mold or winding molten thermoplastic composite prepreg tapes on molten composite rods of a matrix to form ribs, and increasing the surface roughness of the composite rods to improve the interfacial bonding performance between thermoplastic FRP rods / ribs and concrete. The ribs formed by this rib forming method are all distributed on the surface of the rod in a spiral line shape, not all over the surface of the rod. In the application of concrete engineering structures, the junction between the spiral ribs and the rod body is a weak surface, which is prone to stress concentration and shear failure. On the other hand, the ribs of the thermoplastic FRP rods / ribs prepared by extrusion are thermoplastic resins, which have low strength and stiffness. Under shear loads, the ribs are easily peeled off from the rod body and destroyed. The ribs of the thermoplastic FRP rods / ribs prepared by winding are continuous fiber reinforced thermoplastic composite materials. The strength of the junction between the ribs and the rod body is higher than that of the thermoplastic FRP rods / ribs prepared by extrusion, but the bonding between the ribs and the rod body is still thermoplastic resin matrix bonding. The junction between the ribs and the rod body is a weak surface, which is prone to peeling failure under load; in addition, when the thermoplastic FRP rods / ribs prepared by extrusion and winding are bent at the construction site, the ribs are melted, and the original ribs The geometric shape and structure change, which reduces its bonding performance with concrete. Summary of the invention

[0005] In view of this, the present invention aims to propose a surface sandblasted continuous fiber reinforced thermoplastic resin composite rod / rib preparation device to solve the problems of difficult impregnation of large-sized thermoplastic profiles and poor interface bonding performance and low strength faced by thermoplastic FRP rods / ribs in concrete engineering structure applications.

[0006] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0007] A surface sandblasted continuous fiber reinforced thermoplastic resin composite rod / rib preparation device comprises a heating module 1, a heating module 2, a heating module 3, a sandblasting module and a curing molding module which are sequentially installed on a fixed bottom plate from back to front, a pultrusion channel is respectively provided on each module, one end of a continuous fiber reinforced thermoplastic prepreg tape sequentially passes through the pultrusion channels of the heating module 1, the heating module 2, the heating module 3, the sandblasting module and the curing molding module and is then connected to a traction device, a dust cover is provided on the periphery of the curing molding module, a heat insulation cover is provided on the fixed bottom plate, and the three heating modules, the sandblasting module and the curing molding module are all arranged in the heat insulation cover; the traction device pulls the continuous fiber reinforced thermoplastic prepreg tape through each module to form a continuous fiber reinforced thermoplastic resin composite rod / rib;

[0008] The center lines of the pultrusion channels of the five modules are located on the same straight line, the outlet cross-section of the pultrusion channel of the latter module is the same as the inlet cross-section of the pultrusion channel of the former module, the inlet cross-section of the pultrusion channels of the three heating modules and the pultrusion channel of the curing molding module are larger than the outlet cross-section, the inlet cross-sectional area of ​​the pultrusion channel of the sandblasting module is the same as the outlet cross-sectional area, and the central cross-sectional area of ​​the pultrusion channel of the sandblasting module is larger than the inlet cross-sectional area of ​​the pultrusion channel of the sand module.

[0009] Furthermore, the three heating modules have the same structure and all include a heating module mainboard, a heating rod and a temperature sensor 1. The pultrusion channel of the heating module is a first rod / reinforcement material pultrusion channel. The first rod / reinforcement material pultrusion channel runs through the front and rear end surfaces of the heating module mainboard. A temperature sensor 1 and a number of heating rods are respectively installed on the opposite sides of the heating module mainboard. The continuous fiber reinforced thermoplastic prepreg tape passing through the first rod / reinforcement material pultrusion channel is heated to the required temperature by the number of heating rods. The temperature sensor 1 is used to measure the temperature in the first rod / reinforcement material pultrusion channel.

[0010] Furthermore, the sandblasting module includes a sandblasting module mainboard, an auxiliary press-in dry sandblasting machine and temperature sensor 2. The pultrusion channel on the sandblasting module is a second rod / reinforcement pultrusion channel. The second rod / reinforcement pultrusion channel runs through the front and rear end surfaces of the sandblasting module mainboard. A press-in dry sandblasting machine interface connected to the second rod / reinforcement pultrusion channel is provided on the left and right sides of the sandblasting module mainboard. Both press-in dry sandblasting machine interfaces are connected to the outlet of the press-in dry sandblasting machine. Temperature sensor 2 is installed at the upper end of the sandblasting module mainboard. The press-in dry sandblasting machine is used to sandblast the surface of the continuous fiber reinforced thermoplastic rod / reinforcement passing through the second rod / reinforcement pultrusion channel. The temperature sensor 2 is used to measure the temperature in the second rod / reinforcement pultrusion channel.

[0011] Furthermore, the curing and molding module includes a curing and molding module mainboard and temperature sensor three. The pultrusion channel of the curing and molding module is a third rod / reinforcement material pultrusion channel. The third rod / reinforcement material pultrusion channel runs through the front and rear end surfaces of the curing and molding module mainboard. A number of cooling channels are respectively opened on the left and right side surfaces of the curing and molding module. The several cooling channels are connected to the cold source. The temperature sensor three is installed at the right end of the curing and molding module. The several cooling channels cool and solidify the continuous fiber reinforced thermoplastic rods / reinforcements passing through the third rod / reinforcement material pultrusion channel. The temperature sensor three is used to measure the temperature in the third rod / reinforcement material pultrusion channel.

[0012] Furthermore, the three heating module main boards, the sandblasting module main board and the curing and molding module main board are respectively installed at corresponding positions of the fixed base plate through a plurality of bolts.

[0013] Furthermore, the inlet and outlet cross-sections of all channels are circular structures, the inlet and outlet cross-section radius ratio of the pultrusion channels of the three heating modules is in the range of greater than or equal to 0.8 and less than 1.0, the inlet and outlet cross-section radius ratio of the pultrusion channel of the curing molding module is in the range of 0.8-1.0, and the radius of the central cross-section of the pultrusion channel of the sandblasting module is 1.2-1.8 times the inlet cross-section radius of the pultrusion channel of the sandblasting module.

[0014] Furthermore, the cross-section of the interface of the press-in dry sandblasting machine is elliptical.

[0015] Furthermore, the thermoplastic resin matrix of the continuous fiber reinforced thermoplastic prepreg tape is high-viscosity polyetheretherketone, nylon 6, nylon 12 or polypropylene; and the reinforcing fibers are continuous carbon fibers or continuous glass fibers.

[0016] Furthermore, the blasting material of the auxiliary press-in dry sandblasting machine is one or more of copper ore sand, quartz sand, corundum, and iron sand.

[0017] The method for preparing a continuous fiber reinforced thermoplastic resin composite material rod / rib using the above-mentioned surface sandblasting continuous fiber reinforced thermoplastic resin composite material rod / rib preparation device specifically comprises the following steps:

[0018] A) Turn on the heating rods of all heating modules, prepare sand particles that meet the particle size requirements, check the blasting pressure parameters of the press-in dry sandblasting machine, whether the sandblasting inlet is blocked, connect the cooling channel with the cold source, and connect the outlet of the press-in dry sandblasting machine with the press-in dry sandblasting machine interface of the sandblasting module;

[0019] B) After the temperature of each module is stabilized to the working temperature, the continuous fiber reinforced thermoplastic resin composite material prepreg tape with a certain cross-section is sequentially passed through the pultrusion channels of the heating module 1, the heating module 2, the heating module 3, the sandblasting module and the curing molding module, and fixed to the traction device;

[0020] C) Turn on the traction device and check the working status of each module again. After each module is stable, turn on the press-in dry sandblasting machine;

[0021] D) Check the state of sand grains on the surface of the continuous fiber reinforced thermoplastic composite rod / rib, adjust the temperature of the three heating modules, the injection pressure of the press-in dry sandblasting machine, and the cooling rate of the curing molding module until the design requirements are met and the preparation is stable;

[0022] E) After the preparation is completed, turn off the press-in dry sandblasting machine, turn off the heating rods of each heating module, and clean the residual resin and sand particles in each module.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The present invention creates a surface sandblasted continuous fiber reinforced thermoplastic resin composite material rod and rib preparation device, wherein the continuous fiber reinforced thermoplastic prepreg tape / rod / rib is heated by a heating module and pulled through a "trumpet-shaped" pultrusion channel, thereby realizing secondary melting of the continuous fiber reinforced thermoplastic prepreg tape / rod / rib. The "trumpet-shaped" pultrusion channel can realize the re-impregnation of the thermoplastic resin melt into the fiber bundle and squeeze out the air in the pores therein, thereby reducing the internal defects of the continuous fiber reinforced thermoplastic prepreg tape / rod / rib.

[0025] (2) The present invention creates a surface sandblasting continuous fiber reinforced thermoplastic resin composite material rod and rib preparation device. The surface sandblasting module can be carried out during or after the preparation of the thermoplastic FRP rod / rib. The spraying material can be single or multi-component metal ore sand, quartz sand, corundum, etc., and the sandblasting module can be added to achieve multi-particle size fractional sandblasting. It has the characteristics of diverse spraying material types, flexible particle size, and full coverage of the sandblasting area.

[0026] (3) The present invention creates a surface sandblasted continuous fiber reinforced thermoplastic resin composite material rod and rib preparation device. The prepared thermoplastic FRP rod / rib has the advantages of certain shape retention ability and improved strength and stiffness after heating and bending. It not only improves the surface roughness, but also increases the surface activation energy and stiffness, which can make up for the shortcomings of thermoplastic FRP rods / ribs extruded and wound into ribs, such as stress concentration, peeling damage and difficulty in maintaining shape after heating and bending.

[0027] (4) The present invention creates a surface sandblasted continuous fiber reinforced thermoplastic resin composite material rod preparation device, each module structure design is simple, the number of modules can be flexibly replaced or increased or decreased, the continuous preparation production efficiency is high, the equipment cleaning and maintenance are simple, the labor intensity is low, and it has the advantages of strong applicability, wide application range, and simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0029] Figure 1 A schematic diagram of the external structure of a surface sandblasted continuous fiber reinforced thermoplastic resin composite rod / rib preparation device according to an embodiment of the present invention;

[0030] Figure 2 A schematic diagram of the internal structure of a surface sandblasted continuous fiber reinforced thermoplastic resin composite rod / rib preparation device according to an embodiment of the present invention;

[0031] Figure 3This is a schematic diagram of the five modules from a certain angle;

[0032] Figure 4 Another angle diagram of the five modules;

[0033] Figure 5 It is a structural schematic diagram of the heating module;

[0034] Figure 6 It is a structural schematic diagram of the sandblasting module;

[0035] Figure 7 It is a structural schematic diagram of the curing molding module;

[0036] Figure 8 Schematic diagram of the pultrusion inlet and outlet of each module.

[0037] Description of reference numerals:

[0038] 1. Fixed bottom plate; 2. Heating module 1; 3. Heating module 2; 4. Heating module 3; 5. Sandblasting module; 6. Curing and molding module; 201. Heating module main board; 202. Heating rod; 203. First reinforcement material pultrusion channel; 204. Temperature sensor 1; 501. Sandblasting module main board; 502. Bolt 1; 503. Second reinforcement material pultrusion channel; 504. Temperature sensor 2; 505. Press-in dry sandblasting machine interface; 506. Press-in dry sandblasting machine; 601. Curing and molding module main board; 602. Bolt 2; 603. Third reinforcement material pultrusion channel; 604 , temperature sensor three; 605, cooling channel; 21, pultrusion inlet of heating module one; 22, pultrusion outlet of heating module one; 31, pultrusion inlet of heating module two; 32, pultrusion outlet of heating module two; 41, pultrusion inlet of heating module three; 42, pultrusion outlet of heating module three; 51, inlet of second reinforcement pultrusion channel; 52, central section of second reinforcement pultrusion channel; 53, outlet of second reinforcement pultrusion channel; 61, inlet of third reinforcement pultrusion channel; 62, outlet of third reinforcement pultrusion channel; 7, traction device; 8, dust cover; 9, heat insulation cover. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 operated in a specific orientation, and therefore cannot be understood as a limitation on 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.

[0041] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0042] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0043] like Figure 1-Figure 8 As shown, a surface sandblasted continuous fiber reinforced thermoplastic resin composite rod / rib preparation device comprises a heating module 1 2, a heating module 2 3, a heating module 3 4, a sandblasting module 5 and a curing molding module 6 which are sequentially installed on a fixed base plate 1 from back to front, a pultrusion channel is respectively opened on each module, one end of the continuous fiber reinforced thermoplastic prepreg tape sequentially passes through the pultrusion channels of the heating module 1 2, the heating module 2 3, the heating module 3 4, the sandblasting module 5 and the curing molding module 6 and is then connected to a traction device 7, a dust cover 8 is arranged on the periphery of the curing molding module 6, a heat insulation cover 9 is arranged on the fixed base plate 1, and the three heating modules, the sandblasting module 5 and the curing molding module 6 are all arranged in the heat insulation cover 9; the traction device 7 pulls the continuous fiber reinforced thermoplastic prepreg tape through each module to form a continuous fiber reinforced thermoplastic resin composite rod / rib;

[0044] The center lines of the pultrusion channels of the five modules are located on the same straight line, the outlet cross-section of the pultrusion channel of the latter module is the same as the inlet cross-section of the pultrusion channel of the previous module, that is, the shape and size are the same, the pultrusion channels of the three heating modules and the pultrusion channel of the curing molding module 6 all have an inlet cross-section larger than the outlet cross-section, the inlet cross-sectional area of ​​the pultrusion channel of the sandblasting module 5 is the same as the outlet cross-sectional area, and the central cross-sectional area of ​​the pultrusion channel of the sandblasting module 5 is larger than the inlet cross-sectional area of ​​the pultrusion channel of the sand module 5.

[0045] The thermoplastic resin matrix of the continuous fiber reinforced thermoplastic prepreg tape is high viscosity polyetheretherketone (PEEK), nylon 6 (PA6), nylon 12 (PA12) or polypropylene (PP); the reinforcing fiber is continuous carbon fiber or continuous glass fiber.

[0046] The continuous fiber reinforced thermoplastic prepreg tape (continuous fiber reinforced thermoplastic rod / reinforcement material) is heated by three heating modules to melt the thermoplastic resin matrix under the traction of the traction device 7, sandblasted by the sandblasting module 5 and cured by the curing and molding module 6 to obtain a continuous fiber reinforced thermoplastic resin composite material rod / reinforcement with a sandblasted surface.

[0047] The three heating modules have the same structure, and all include a heating module mainboard 201, a heating rod 202, and a temperature sensor 204. The pultrusion channel of the heating module is a first rod / reinforcement material pultrusion channel 203, which runs through the front and rear ends of the heating module mainboard 201. A temperature sensor 204 and a plurality of heating rods 202 are respectively installed on opposite sides of the heating module mainboard 201. The continuous fiber reinforced thermoplastic prepreg tape passing through the first rod / reinforcement material pultrusion channel 203 is heated to a desired temperature by the plurality of heating rods 202. The temperature sensor 204 is used to measure the temperature in the first rod / reinforcement material pultrusion channel 203. The three heating modules can be heated by a resistance heating rod 202, but are not limited to such a heating method; the heating method and heating power are determined according to the thermoplastic resin, and the working temperature is monitored and quantitatively adjusted by the temperature sensor 204. The temperature sensor 204 is connected to the controller, and the controller is electrically connected to the heating rod.

[0048] The sandblasting module 5 includes a sandblasting module main board 501, an auxiliary press-in dry sandblasting machine 506 and a second temperature sensor 504. The pultrusion channel on the sandblasting module 5 is a second rod / reinforcement pultrusion channel 503. The second rod / reinforcement pultrusion channel 503 runs through the front and rear end surfaces of the sandblasting module main board 501. A press-in dry sandblasting machine interface 505 connected to the second rod / reinforcement pultrusion channel 503 is provided on the left and right sides of the sandblasting module 5 main board. Both press-in dry sandblasting machine interfaces 505 are connected to the outlet of the press-in dry sandblasting machine 506. A second temperature sensor 504 is installed on the upper end of the sandblasting module 5 main board. The press-in dry sandblasting machine 506 is used to sandblast the surface of the continuous fiber reinforced thermoplastic rod / reinforcement passing through the second rod / reinforcement pultrusion channel 503. The second temperature sensor 504 is used to measure the temperature in the second rod / reinforcement pultrusion channel 503. The cross-section of the interface 505 of the press-in dry sandblasting machine is elliptical; the sand particles are pressurized by the press-in dry sandblasting machine and pumped into the surface of the continuous fiber reinforced thermoplastic rod / reinforcement material through the second rod / reinforcement pultrusion channel 503 from the sandblasting inlets 505 with elliptical cross-sections on the left and right sides of the sandblasting module 5, and are squeezed and embedded through the "double trumpet-shaped" pultrusion channel wall; the sand particle size is adjusted according to the diameter of the continuous fiber reinforced thermoplastic composite material rod / reinforcement material, and the injection pressure of the press-in dry sandblasting machine is adjusted according to the sand particle size; the sandblasting temperature is monitored by the temperature sensor 2 504, and can be controlled by adjusting the traction machine speed, the distance between the sandblasting module 5 and the heating module 3 4, the temperature of the three heating modules, etc.

[0049] The curing and molding module 6 includes a curing and molding module main board 601 and a temperature sensor three 604. The pultrusion channel of the curing and molding module 6 is a third rod / reinforcement material pultrusion channel 603. The third rod / reinforcement material pultrusion channel 603 runs through the front and rear end surfaces of the curing and molding module main board 601. A plurality of cooling channels 605 are respectively provided on the left and right side surfaces of the curing and molding module 6. The plurality of cooling channels 605 are connected to a cold source. A temperature sensor three 604 is installed at the right end of the curing and molding module 6. The plurality of cooling channels cool and solidify the continuous fiber reinforced thermoplastic rod / reinforcement material passing through the third rod / reinforcement material pultrusion channel 603. The temperature sensor three 604 is used to measure the temperature in the third rod / reinforcement material pultrusion channel 603. The cold source is cooling water, cold air or natural air; the cooling method is determined according to the thermodynamic performance parameters and preparation requirements of the thermoplastic resin; the high-precision temperature sensor three 604 monitors the module temperature in real time. The temperature sensor three 604 is electrically connected to the controller, and the controller is electrically connected to the cold source.

[0050] Among the five modules, the outlet cross section of the pultrusion channel of the latter module is the same as the inlet cross section of the pultrusion channel of the previous module, the pultrusion channels of the three heating modules and the pultrusion channel of the curing molding module 6 are all larger inlet cross sections than the outlet cross sections, the inlet cross section area of ​​the pultrusion channel of the sandblasting module 5 is the same as the outlet cross section area, the central cross section area of ​​the pultrusion channel of the sandblasting module 5 is larger than the inlet cross section area of ​​the pultrusion channel of the sand module 5, that is: the first rod / reinforcement pultrusion channel 203 and the third rod / reinforcement pultrusion channel 603 of the three heating modules are all channels with inlet cross sections larger than outlet cross sections, the cross section area of ​​the pultrusion channel outlet 22 of the heating module one is larger than the cross section area of ​​the pultrusion channel outlet 32 ​​of the heating module two, and the cross section area of ​​the pultrusion channel outlet 32 ​​of the heating module two is larger than the cross section area of ​​the pultrusion channel outlet 42 of the heating module three;

[0051] The cross-sectional area of ​​the pultrusion channel outlet 22 of the heating module one is equal to the cross-sectional area of ​​the pultrusion channel inlet 31 of the heating module two, and the cross-sectional area of ​​the pultrusion channel outlet 32 ​​of the heating module two is equal to the cross-sectional area of ​​the pultrusion channel inlet 41 of the heating module three;

[0052] The cross-sectional area of ​​the inlet 51 of the second rod / reinforcement pultrusion channel is the same as the cross-sectional area of ​​the outlet 53 of the second rod / reinforcement pultrusion channel, the area of ​​the central cross-section 52 of the second rod / reinforcement pultrusion channel is larger than the cross-sectional area of ​​the inlet 51 of the second rod / reinforcement pultrusion channel, and the cross-sectional area of ​​the inlet 61 of the third rod / reinforcement pultrusion channel is equal to the cross-sectional area of ​​the outlet 53 of the second rod / reinforcement pultrusion channel.

[0053] The three heating module main boards 201, the sandblasting module main board 501 and the curing molding module main board 601 are respectively installed at corresponding positions of the fixed base plate 1 by a number of bolts. Specifically, each heating module main board 201 is respectively installed at a corresponding position of the fixed base plate 1 by two bolts three, the sandblasting module main board 501 is installed at a corresponding position of the fixed base plate 1 by two bolts one 502, and the curing molding module main board 601 is installed at a corresponding position of the fixed base plate 1 by two bolts two 602.

[0054] The inlet and outlet cross-sections of all channels are circular structures, the inlet and outlet cross-section radius ratio of the pultrusion channels of the three heating modules is greater than or equal to 0.8 and less than 1.0, the inlet and outlet cross-section radius ratio of the pultrusion channel of the curing molding module 6 is in the range of 0.8-1.0, and the radius of the central cross-section of the pultrusion channel of the sandblasting module 5 is 1.2-1.8 times the radius of the inlet cross-section of the pultrusion channel of the sandblasting module 5. That is, the inlet and outlet cross-section radius ratio of the first rod / reinforcement pultrusion channel 203 is greater than or equal to 0.8 and less than 1.0, and the inlet and outlet cross-section radius ratio of the third rod / reinforcement pultrusion channel 603 is in the range of 0.8-1.0. Such a setting realizes the secondary pultrusion and impregnation of the continuous fiber reinforced thermoplastic composite rod / reinforcement, which can significantly reduce the resin matrix and void content and increase the continuous fiber content; the radius of the central cross-section of the second rod / reinforcement pultrusion channel 503 is 1.2-1.8 times the inlet cross-section radius of the second rod / reinforcement pultrusion channel 503. Such a setting increases the sandblasting area and ensures the depth of sand grains embedded in the rod / reinforcement surface.

[0055] The spraying material of the auxiliary press-in dry sandblasting machine 506 is one or more of copper ore sand, quartz sand, corundum, and iron sand, and the spraying material particle size is 1-3mm, 0.1-0.3mm single level or multiple levels. The multi-component and multi-level mixed spraying material is achieved by adding an additional sandblasting module 5.

[0056] The particle size of the spray material is adjusted according to the diameter of the continuous fiber reinforced thermoplastic composite rod / rib material, and the injection pressure of the press-in dry sandblasting machine 506 is adjusted according to the particle size of the spray material. The press-in dry sandblasting machine 506 is an existing structure, mainly including a spray gun, an air gun, a sand outlet valve, an air outlet valve, an air source, a filter, etc.; the parameters such as the sandblasting angle, the sandblasting time, the sandblasting distance, and the sandblasting pressure can be electrically controlled; the sand particles suspended in the pipeline are pushed forward by the compressed air.

[0057] The present application discloses a surface-sandblasted continuous fiber reinforced thermoplastic resin composite rod / rib preparation device, which uses continuous fiber reinforced thermoplastic composite prepreg tape / rod / rib as raw materials for secondary melting and surface-sandblasted continuous fiber reinforced thermoplastic composite rod / rib material preparation. The secondary impregnation solves the problem of impregnation of large-sized thermoplastic profiles. The surface sandblasting increases the surface roughness of the continuous fiber reinforced thermoplastic resin composite rod / rib material, thereby improving its bonding performance with the concrete interface, and effectively solves the problems of poor interface bonding performance and low strength faced by thermoplastic FRP rods / ribs in concrete engineering structure applications.

[0058] The present invention has the advantages of continuous and efficient preparation efficiency, flexible sandblasting density and particle size distribution, high bonding strength between sand particles and rods / reinforcements, etc. The product can effectively solve the problem of low bonding strength between the high-viscosity thermoplastic resin matrix and large-size continuous fiber reinforced thermoplastic composite rods / reinforcements with smooth surface and concrete interface. In addition, this patent is compatible with the thermoplastic composite prepreg tape / rod / reinforcement preparation device, and has the advantages of simple structure, convenient operation, and convenient cleaning and maintenance.

[0059] The method for preparing a continuous fiber reinforced thermoplastic resin composite rod / rib using the above-mentioned surface sandblasting continuous fiber reinforced thermoplastic resin composite rod / rib preparation device specifically comprises the following steps:

[0060] A) Turn on the heating rods of all heating modules, prepare sand particles that meet the particle size requirements, check the blasting pressure parameters of the press-in dry sandblasting machine, check whether the sandblasting inlet is blocked, connect the cooling channel 605 with the cold source, open the cold source, and connect the outlet of the press-in dry sandblasting machine with the press-in dry sandblasting machine interface 505 of the sandblasting module 5;

[0061] B) After the temperature of each module is stabilized to the working temperature, the continuous fiber reinforced thermoplastic resin composite material prepreg tape of a certain cross section is sequentially passed through the pultrusion channels of the heating module 1 2, the heating module 2 3, the heating module 3 4, the sandblasting module 5 and the curing molding module 6, and fixed to the traction device 7;

[0062] C) Turn on the traction device 7, check the working status of each module again, and turn on the push-in dry sandblasting machine after each module is stable; in this process, the temperature in the corresponding module is detected by the temperature sensor. When the temperature does not meet the working temperature, the controller connected to the sensor controls the corresponding heating rod or cold source to operate, thereby changing the temperature in the heating module and the curing molding module to maintain it at the working temperature. The temperature sensor in the sandblasting module 5 is used to monitor the temperature during spraying.

[0063] D) Check the state of sand grains on the surface of the continuous fiber reinforced thermoplastic composite rod / rib, adjust the temperature of the three heating modules, the injection pressure of the press-in dry sandblasting machine, and the cooling rate of the curing molding module 6 until the design requirements are met and the preparation is stable;

[0064] E) After the preparation is completed, turn off the press-in dry sandblasting machine, turn off the heating rods of each heating module, turn off the cold source, and clean the residual resin and sand particles in each module.

[0065] Here are some specific examples:

[0066] Example 1: Preparation of surface sandblasted continuous glass fiber reinforced polypropylene rod (φ=6 mm)

[0067] 1) In this embodiment, continuous glass fiber reinforced polypropylene rods with a diameter of 6±0.1 mm and a sandblasting thickness of 0.1±0.05 mm are prepared; 10 rods with a cross section of 9.5×0.3 mm are prepared in advance. 2 And having the same length of continuous glass fiber reinforced polypropylene prepreg tape and corundum with a particle size of 0.1-0.3 mm;

[0068] 2) In this embodiment, the thickness of the main board of each module is 40±1mm, and the module height is 200±1mm; the inlet diameter of the pultrusion channel of the heating module 1 2 is 7.2mm, the inlet diameter of the pultrusion channel of the heating module 2 3 is 6.5mm, and the inlet diameter of the pultrusion channel of the heating module 3 4 is 6.0mm, and the taper of the pultrusion channels of the three heating modules is 1 degree; the inlet diameter of the pultrusion channel of the sandblasting module 5 is 6.0mm, and the taper of the "double trumpet-shaped" pultrusion channel is 3 degrees, and the inlet diameter of the pultrusion channel of the cooling module 6 is 6.2mm, and the taper of the pultrusion channel is 0.5 degrees. The heating module 1 2, the heating module 2 3, the heating module 3 4, the sandblasting module 5 and the cooling module 6 are arranged in equal intervals along the pultrusion direction;

[0069] 3) Turn on the heating rods of the three heating modules, the controllers and the temperature control switches of each module; check the working status of the press-in dry sandblasting machine, connect the cooling channel 605 with the cold source, turn on the cold source, connect the press-in dry sandblasting machine with the sandblasting module interface; ensure that each module is in good working condition;

[0070] 4) Set the temperature of heating module 1 2 to 200±1℃, the temperature of heating module 2 3 to 185±1℃, and the temperature of heating module 3 4 to 175±1℃; after the temperature of each heating module is stable, prepare 10 pieces of 9.5×0.3mm 2 The continuous glass fiber reinforced polypropylene prepreg tapes with the same length sequentially pass through the heating module 1 2, the heating module 2 3, the heating module 3 4, the sandblasting module 5 and the curing molding module 6 and are fixed on the winding roller of the traction machine;

[0071] 5) Turn on the traction machine control switch and set the traction speed to 0.4m / min; check the working status of each module again; after confirming normal operation, turn on the sandblasting machine and set the sandblasting pressure to 0.15±0.05Mpa;

[0072] 6) Check the state of sand grains on the surface of the prepared continuous glass fiber reinforced polypropylene rod, and appropriately adjust the temperature of heating module 1 2, heating module 2 3, heating module 3 4, the injection pressure of the press-in dry sandblasting machine, and the temperature of the curing molding module 6 until the preparation requirements are met and the preparation is stabilized;

[0073] 7) After the preparation is completed, turn off the control switch of the press-in dry sandblasting machine, the heating rods of each heating module, the controller, the control switch of the temperature of each module, and turn off the cold source; clean the residual polypropylene resin and sand around the pultrusion channel of each module; collect the prepared continuous glass fiber reinforced polypropylene rods with surface sandblasting.

[0074] Example 2: Preparation of surface sandblasted continuous glass fiber reinforced polypropylene rod (φ=10 mm)

[0075] 1) In this embodiment, continuous glass fiber reinforced polypropylene rods with a diameter of 10±0.1 mm and a sandblasting thickness of 0.2±0.05 mm are prepared; 28 rods with a cross section of 9.5×0.3 mm are prepared in advance. 2 And having continuous glass fiber reinforced polypropylene prepreg tapes of the same length, and corundum with a particle size of 1-3 mm;

[0076] 2) In this embodiment, the thickness of the main board of each module is 40±1mm, and the module height is 200±1mm; the inlet diameter of the pultrusion channel of the heating module 1 2 is 12.6mm, the inlet diameter of the pultrusion channel of the heating module 2 3 is 11.5mm, and the inlet diameter of the pultrusion channel of the heating module 3 4 is 10.5mm, and the taper of the pultrusion channel of the three heating modules is 3 degrees; the inlet diameter of the pultrusion channel of the sandblasting module 5 is 10.2mm, and the taper of the "double trumpet-shaped" pultrusion channel is 5 degrees, and the inlet diameter of the pultrusion channel of the cooling module 6 is 10.5mm, and the taper of the pultrusion channel is 2 degrees; the heating module 1 2, the heating module 2 3, the heating module 3 4, the sandblasting module 5 and the cooling module 6 are arranged in equal intervals along the pultrusion direction;

[0077] 3) Turn on the heating rods of the three heating modules, the controllers and the temperature control switches of each module; check the working status of the press-in dry sandblasting machine, connect the cooling channel 605 with the cold source, turn on the cold source, connect the press-in dry sandblasting machine with the sandblasting module interface; ensure that each module is in good working condition;

[0078] 4) Set the temperature of heating module 1 2 to 215±1℃, the temperature of heating module 2 3 to 200±1℃, and the temperature of heating module 3 4 to 185±1℃; after the temperature of each heating module is stable, prepare 28 pieces of 9.5×0.3mm 2 The continuous glass fiber reinforced polypropylene prepreg tapes with the same length sequentially pass through the heating module 1 2, the heating module 2 3, the heating module 3 4, the sandblasting module 5 and the curing molding module 6 and are fixed on the winding roller of the traction machine;

[0079] 5) Turn on the traction machine control switch and set the traction speed to 0.3m / min; check the working status of each module again; after confirming normal operation, turn on the sandblasting machine and set the sandblasting pressure to 0.2±0.1Mpa;

[0080] 6) Check the state of sand grains on the surface of the prepared continuous glass fiber reinforced polypropylene rod, and appropriately adjust the temperature of the three heating modules, the injection pressure of the press-in dry sandblasting machine, and the temperature of the curing molding module 6 until the preparation requirements are met and the preparation is stable;

[0081] 7) After the preparation is completed, turn off the control switch of the press-in dry sandblasting machine, the heating rods of each heating module, the controller, the control switch of the temperature of each module, and turn off the cold source; clean the residual polypropylene resin and sand around the pultrusion channel of each module; collect the prepared continuous glass fiber reinforced polypropylene rods with surface sandblasting.

[0082] Example 3: Preparation of Surface Sandblasted Continuous Glass Fiber Reinforced PA6 Rods (φ=6mm)

[0083] 1) In this embodiment, continuous glass fiber reinforced PA6 rods with a diameter of 6±0.1mm and a sandblasting thickness of 0.1±0.05mm are prepared; 10 rods with a cross section of 9.5×0.3mm are prepared in advance. 2 And having the same length of continuous glass fiber reinforced PA6 prepreg tape and corundum with a particle size of 0.1-0.3mm;

[0084] 2) In this embodiment, the thickness of the main board of each module is 40±1mm, and the module height is 200±1mm; the inlet diameter of the pultrusion channel of the heating module 1 2 is 7.2mm, the inlet diameter of the pultrusion channel of the heating module 2 3 is 6.5mm, and the inlet diameter of the pultrusion channel of the heating module 3 4 is 6.0mm, and the pultrusion channel taper of the three heating modules is 1 degree; the inlet diameter of the pultrusion channel of the sandblasting module 5 is 6.0mm, and the "double trumpet-shaped" pultrusion channel taper is 3 degrees, and the inlet diameter of the pultrusion channel of the cooling module 6 is 6.2mm, and the pultrusion channel taper is 0.5 degrees; the heating module 1 2, the heating module 2 3, the heating module 3 4, the sandblasting module 5 and the cooling module 6 are arranged in equal intervals along the pultrusion direction;

[0085] 3) Turn on the heating rods of the three heating modules, the controllers and the temperature control switches of each module; check the working status of the press-in dry sandblasting machine, connect the cooling channel 605 with the cold source, turn on the cold source, connect the press-in dry sandblasting machine with the sandblasting module interface; ensure that each module is in good working condition;

[0086] 4) Set the temperature of heating module 1 2 to 250±1℃, the temperature of heating module 2 3 to 235±1℃, and the temperature of heating module 3 4 to 220±1℃; after the temperature of each heating module is stable, prepare 10 pieces of 9.5×0.3mm 2 The continuous glass fiber reinforced PA6 prepreg tapes with the same length sequentially pass through the heating module 1 2, the heating module 2 3, the heating module 3 4, the sandblasting module 5 and the curing molding module 6 and are fixed on the winding roller of the traction machine;

[0087] 5) Turn on the traction machine control switch and set the traction speed to 0.35m / min; check the working status of each module again; after confirming normal operation, turn on the sandblasting machine and set the sandblasting pressure to 0.15±0.05Mpa;

[0088] 6) Check the sand state on the surface of the prepared continuous glass fiber reinforced PA6 rod, and appropriately adjust the temperature of the three heating modules, the injection pressure of the press-in dry sandblasting machine, and the temperature of the curing molding module (6) until the preparation requirements are met and the preparation is stable;

[0089] 7) After the preparation is completed, turn off the control switch of the press-in dry sandblasting machine, the heating rods of each heating module, the controller, the control switch of the temperature of each module, and turn off the cold source; clean the residual PA6 resin and sand around the pultrusion channel of each module; collect the prepared continuous glass fiber reinforced PA6 rods with surface sandblasting.

[0090] Example 4: Preparation of PA6 rods reinforced with continuous carbon fiber reinforced by surface sandblasting (φ=10 mm)

[0091] 1) In this embodiment, continuous glass fiber reinforced PA6 rods with a diameter of 10±0.1 mm and a sandblasting thickness of 0.2±0.05 mm are prepared; 28 rods with a cross section of 9.5×0.3 mm are prepared in advance. 2 The invention also comprises continuous carbon fiber reinforced PA6 prepreg tapes of the same length and corundum with a particle size of 1-3 mm.

[0092] 2) In this embodiment, the thickness of the main board of each module is 40±1mm, and the module height is 200±1mm; the inlet diameter of the pultrusion channel of heating module 1 2 is 12.6mm, the inlet diameter of the pultrusion channel of heating module 2 3 is 11.5mm, and the inlet diameter of the pultrusion channel of heating module 3 4 is 10.5mm, and the taper of the pultrusion channels of the three heating modules is 3 degrees; the inlet diameter of the pultrusion channel of the sandblasting module 5 is 6.0mm, and the taper of the "double trumpet-shaped" pultrusion channel is 5 degrees, and the inlet diameter of the pultrusion channel of the cooling module 6 is 6.2mm, and the taper of the pultrusion channel is 2 degrees; the heating module 1 2, the heating module 2 3, the heating module 3 4, the sandblasting module 5 and the cooling module 6 are arranged in equal intervals along the pultrusion direction;

[0093] 3) Turn on the heating rods of the three heating modules, the controllers and the temperature control switches of each module; check the working status of the press-in dry sandblasting machine, connect the cooling channel 605 with the cold source, turn on the cold source, connect the press-in dry sandblasting machine with the sandblasting module interface; ensure that each module is in good working condition;

[0094] 4) Set the temperature of heating module 1 2 to 260±1℃, the temperature of heating module 2 3 to 245±1℃, and the temperature of heating module 3 4 to 230±1℃; after the temperature of each heating module is stable, prepare 28 pieces of 9.5×0.3mm 2 The continuous carbon fiber reinforced PA6 prepreg tapes with the same length sequentially pass through the heating module 1 2, the heating module 2 3, the heating module 3 4, the sandblasting module 5 and the curing molding module 6 and are fixed on the winding roller of the traction machine;

[0095] 5) Turn on the traction machine control switch and set the traction speed to 0.3m / min; check the working status of each module again; after confirming normal operation, turn on the sandblasting machine and set the sandblasting pressure to 0.3±0.1MPa;

[0096] 6) Check the sand state on the surface of the prepared continuous carbon fiber reinforced PA6 rod, and appropriately adjust the temperature of the three heating modules, the injection pressure of the press-in dry sandblasting machine, and the temperature of the curing molding module 6 until the preparation requirements are met and the preparation is stable;

[0097] 7) After the preparation is completed, turn off the control switch of the press-in dry sandblasting machine, the heating rods of each heating module, the controller, the control switch of the temperature of each module, and turn off the cold source; clean the residual PA6 resin and sand around the pultrusion channel of each module; collect the prepared continuous carbon fiber reinforced PA6 rod with surface sandblasting.

[0098] The embodiments of the invention disclosed above are only used to help illustrate the invention. The embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. According to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the invention, so that those skilled in the art can understand and use the invention well.

Claims

1. A surface sandblasting continuous fiber reinforced thermoplastic resin composite material rib preparation device, characterized in that: The invention comprises a heating module 1 (2), a heating module 2 (3), a heating module 3 (4), a sandblasting module (5) and a curing and forming module (6) which are sequentially installed on a fixed base plate (1) from the back to the front, and a pultrusion channel is respectively provided on each module, and one end of a continuous fiber reinforced thermoplastic prepreg tape sequentially passes through the pultrusion channels of the heating module 1 (2), the heating module 2 (3), the heating module 3 (4), the sandblasting module (5) and the curing and forming module (6) and is then connected to a traction device (7), a dust cover (8) is provided on the periphery of the curing and forming module (6), a heat insulation cover (9) is provided on the fixed base plate (1), and the three heating modules, the sandblasting module (5) and the curing and forming module (6) are all arranged in the heat insulation cover (9); the traction device (7) pulls the continuous fiber reinforced thermoplastic prepreg tape through each module to form a continuous fiber reinforced thermoplastic resin composite material rib; The center lines of the pultrusion channels of the five modules are located on the same straight line, the outlet cross-section of the pultrusion channel of the latter module is the same as the inlet cross-section of the pultrusion channel of the former module, the inlet cross-section area of ​​the pultrusion channels of the three heating modules and the pultrusion channels of the curing and molding module (6) are larger than the outlet cross-section area, the inlet cross-section area of ​​the pultrusion channel of the sandblasting module (5) is the same as the outlet cross-section area, and the center cross-section area of ​​the pultrusion channel of the sandblasting module (5) is larger than the inlet cross-section area of ​​the pultrusion channel of the sandblasting module (5).

2. The device for preparing continuous fiber reinforced thermoplastic resin composite ribs with surface sandblasting according to claim 1, characterized in that: The three heating modules have the same structure, and all include a heating module mainboard (201), a heating rod (202) and a temperature sensor 1 (204). The pultrusion channel of the heating module is a first reinforcement material pultrusion channel (203). The first reinforcement material pultrusion channel (203) runs through the front and rear end surfaces of the heating module mainboard (201). A temperature sensor 1 (204) and a plurality of heating rods (202) are respectively installed on opposite sides of the heating module mainboard (201). The continuous fiber reinforced thermoplastic prepreg tape passing through the first reinforcement material pultrusion channel (203) is heated to a desired temperature by the plurality of heating rods (202). The temperature sensor 1 (204) is used to measure the temperature in the first reinforcement material pultrusion channel (203).

3. The device for preparing continuous fiber reinforced thermoplastic resin composite ribs with surface sandblasting according to claim 1, characterized in that: The sandblasting module (5) comprises a sandblasting module mainboard (501), a press-in dry sandblasting machine (506) and a second temperature sensor (504). The pultrusion channel on the sandblasting module (5) is a second reinforcing material pultrusion channel (503). The second reinforcing material pultrusion channel (503) runs through the sandblasting module mainboard (501). The front and rear end surfaces of the sandblasting module (5) are provided with a press-in dry sandblasting machine interface (505) connected to the second reinforcement material pultrusion channel (503) on the left and right sides of the sandblasting module (5) main board, and the two press-in dry sandblasting machine interfaces (505) are both connected to the outlet of the press-in dry sandblasting machine (506). A second temperature sensor (504) is installed at the upper end of the sandblasting module (5) main board. The press-in dry sandblasting machine (506) is used to sandblast the surface of the continuous fiber reinforced thermoplastic reinforcement material passing through the second reinforcement material pultrusion channel (503), and the second temperature sensor (504) is used to measure the temperature in the second reinforcement material pultrusion channel (503).

4. The device for preparing continuous fiber reinforced thermoplastic resin composite material ribs with surface sandblasting according to claim 1, characterized in that: The curing and molding module (6) includes a curing and molding module mainboard (601) and a temperature sensor three (604). The pultrusion channel of the curing and molding module (6) is a third reinforcement material pultrusion channel (603). The third reinforcement material pultrusion channel (603) runs through the front and rear end surfaces of the curing and molding module mainboard (601). A plurality of cooling channels (605) are respectively provided on the left and right side surfaces of the curing and molding module (6). The plurality of cooling channels (605) are connected to a cold source. The temperature sensor three (604) is installed at the right end of the curing and molding module (6). The plurality of cooling channels cool and solidify the continuous fiber reinforced thermoplastic reinforcement material passing through the third reinforcement material pultrusion channel (603). The temperature sensor three (604) is used to measure the temperature in the third reinforcement material pultrusion channel (603).

5. The device for preparing continuous fiber reinforced thermoplastic resin composite material ribs with surface sandblasting according to claim 1, characterized in that: The inlet and outlet cross-sections of all channels are circular structures. The ratio of the outlet and inlet cross-section radius of the pultrusion channels of the three heating modules is greater than or equal to 0.8 and less than 1.

0. The ratio of the outlet and inlet cross-section radius of the pultrusion channel of the curing molding module (6) is in the range of 0.8-1.

0. The radius of the central cross-section of the pultrusion channel of the sandblasting module (5) is 1.2-1.8 times the radius of the inlet cross-section of the pultrusion channel of the sandblasting module (5).

6. The device for preparing continuous fiber reinforced thermoplastic resin composite material ribs with surface sandblasting according to claim 3, characterized in that: The cross section of the press-in dry sandblasting machine interface (505) is elliptical.

7. The device for preparing continuous fiber reinforced thermoplastic resin composite ribs with surface sandblasting according to claim 1, characterized in that: The thermoplastic resin matrix of the continuous fiber reinforced thermoplastic prepreg tape is high-viscosity polyetheretherketone, nylon 6, nylon 12 or polypropylene; the reinforcing fiber is continuous carbon fiber or continuous glass fiber.

8. The device for preparing continuous fiber reinforced thermoplastic resin composite material ribs with surface sandblasting according to claim 3, characterized in that: The spraying material of the press-in dry sandblasting machine (506) is one or more of copper ore sand, quartz sand, corundum and iron sand.

9. A method for preparing continuous fiber reinforced thermoplastic resin composite material tendons using a surface sandblasting continuous fiber reinforced thermoplastic resin composite material tendon preparation device as claimed in any one of claims 1 to 8, characterized in that: The specific steps include: A) Turn on the heating rods of all heating modules, prepare sand particles that meet the particle size requirements, check the blasting pressure parameters of the press-in dry sandblasting machine, check whether the sandblasting inlet is blocked, connect the cooling channel with the cold source, and connect the outlet of the press-in dry sandblasting machine with the press-in dry sandblasting machine interface (505) of the sandblasting module (5); B) after the temperature of each module is stabilized to the working temperature, a continuous fiber reinforced thermoplastic resin composite material prepreg tape of a certain cross section is sequentially passed through the pultrusion channels of the heating module 1 (2), the heating module 2 (3), the heating module 3 (4), the sandblasting module (5) and the curing and molding module (6), and fixed to the traction device (7); C) Turn on the traction device (7), check the working status of each module again, and turn on the press-in dry sandblasting machine after each module is stable; D) Check the state of sand particles on the surface of the continuous fiber reinforced thermoplastic composite reinforcement, adjust the temperature of the three heating modules, the injection pressure of the press-in dry sandblasting machine, and the cooling rate of the curing molding module (6) until the design requirements are met and the preparation is stable; E) After the preparation is completed, turn off the press-in dry sandblasting machine, turn off the heating rods of each heating module, and clean the residual resin and sand particles in each module.

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