CN112848364A

CN112848364A - Integrated forming and curing equipment for preparing carbon fiber solid stay cable

Info

Publication number: CN112848364A
Application number: CN202110088678.XA
Authority: CN
Inventors: 谭佃龙; 朱桂龙; 易红平; 李少华
Original assignee: Jiangsu Jicui Carbon Fiber And Composite Application Technology Research Institute Co ltd
Current assignee: Jiangsu Jicui Carbon Fiber And Composite Application Technology Research Institute Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-05-28

Abstract

The invention discloses integrated forming and curing equipment for preparing a carbon fiber solid cable, which comprises an installation seat, and a sleeve pressing die, a winding machine and an infrared heating device which are sequentially arranged on the installation seat from front to back, wherein a die pressing channel is formed in the sleeve pressing die; the pre-compacted inhaul cable is formed by winding pre-impregnated carbon fibers into a ring winding and then twisting the ring winding. The invention can realize rapid compaction of workpieces, complete compaction, winding and curing at one time, convenient and rapid loading and unloading, greatly reduce the working labor intensity, solve the problems of forming and curing of large-scale strip-shaped composite materials, and realize field forming and curing operation by connecting an external power supply. The invention can be used for one-time compaction molding and curing of the unidirectional fiber prepreg with joints at two ends.

Description

Integrated forming and curing equipment for preparing carbon fiber solid stay cable

Technical Field

The invention belongs to the field of carbon fiber composite material manufacturing, and particularly relates to integrated forming and curing equipment for preparing a carbon fiber solid cable.

Background

There are generally two types of carbon fiber composite material forming processes: prepreg forming methods include vacuum bag method, autoclave method and mold pressing method, low temperature and low pressure method, photocuring method, pultrusion method, and the like. Another molding process is a liquid molding technique, including resin transfer molding, vacuum assisted transfer molding, and resin film infusion molding. Composite rods are typically consolidated by pultrusion and then cured. If compaction is not performed before curing, various defects such as bubbles, delamination and the like are generated, so that the composite material cannot meet the use requirement. However, either process involves a prepreg compaction process which requires significant labor and material costs and takes a significant amount of time. According to normal pultrusion process, large pultrusion equipment is needed, production preparation work is complicated, only pure bars can be produced, and the rigging with joints at two ends cannot be produced in a pultrusion mode. The prepregs of such rigging are currently densified by means of fibre tape lacing. The tight power of fibre area binding can be different according to operating personnel difference, makes closely knit degree also different, and the tight power of binding adopts the fibre area to cause easily that each position binds the tight power difference moreover, and closely knit degree is also different, hardly guarantees evenly to the combined material cable body compaction. Although the pultrusion bar compacts the resin and the carbon fiber together through the pultrusion process, the joints at the two ends cannot be well combined together, the cable can only be made into a plate, then the plate is clamped together by a clamp for connection, and the connection is carried by friction force or the safety of the joints is difficult to ensure through riveting.

Disclosure of Invention

Aiming at the defects of the common forming and compacting process in the manufacturing process of long-strip composite materials, the invention provides integrated forming and curing equipment for preparing a carbon fiber solid stay cable, an air pump is used for transferring torque, the workpiece can be quickly and simply compacted, the device can be simultaneously integrated with a temperature-controllable infrared heating and ribbon winding device, the operation is simple and convenient, additional pressurization is not needed, the time, manpower and material resources can be greatly saved, particularly, a field power supply can be used for realizing field cable body curing in a construction site, and the problem of large-size cable body construction site curing is solved.

In order to achieve the purpose, the invention adopts the technical scheme that: an integrated forming and curing device for preparing a carbon fiber solid stay cable comprises an installation seat and a sleeve pressing die arranged on the installation seat, wherein a die pressing channel is formed in the sleeve pressing die; the pre-compacted inhaul cable is formed by winding pre-impregnated carbon fibers into a ring winding and then twisting the ring winding;

the winding machine is arranged on the mounting seat and used for winding the wire rod to the compacted inhaul cable so as to tighten the compacted part of the inhaul cable;

the cable winding machine is characterized by further comprising an infrared heating device arranged on the mounting seat, wherein the infrared heating device is located behind the winding machine and used for heating and curing the tightly bound cable.

Furthermore, the die pressing channel comprises a guide part positioned at the front end and a compaction part coaxially connected with the rear end of the guide part, the compaction part is used for compacting the pre-compacted inhaul cable to a set radial size, the guide part is arranged to facilitate the movement of the sleeving and pressing die along the length direction of the inhaul cable, and the inhaul cable is compacted in the moving process.

Furthermore, for convenience in use, the sleeve pressing die is split and comprises 2 split dies which are oppositely arranged and can be mutually close to a die assembly or mutually far away, die pressing surfaces are arranged on the opposite sides of the 2 split dies, and when the 2 split dies are assembled, the 2 die pressing surfaces jointly surround the die pressing channel; the split dies are arranged on the mounting base, and the driving mechanism is used for driving the 2 split dies to move close to or away from each other. When the inhaul cable pressing die is used, the 2 split dies are controlled to be separated from each other, the pre-compacted inhaul cable is controlled to be located between the 2 split dies, then the 2 split dies are controlled to be close to each other, the pre-compacted inhaul cable is controlled in the pressing die channel, the inhaul cable in the pressing die channel is compacted to a set size, the pressing die is moved along the length direction of the inhaul cable, and the inhaul cable is compacted step by step along with the movement of the pressing die.

Further, the number of the driving mechanisms is 1, and the driving mechanisms are connected with one split die; or 2 driving mechanisms are correspondingly connected with the split dies one by one.

Further, the driving mechanism is an air cylinder or an electric push rod.

Further, the cross section of the molding channel is circular or irregular.

Furthermore, the sleeve pressing die is detachably mounted on the mounting seat, and the sleeve pressing die can be replaced according to the diameter of a prefabricated solid cable or the cross section shape of the solid cable.

Further, in order to facilitate disassembly and replacement, the winding machine is detachably mounted on the mounting seat; and/or the infrared heating device is detachably arranged on the mounting seat.

Further, infrared heating device includes annular lamp tube, during the use, annular lamp tube cover is established on the cable that the winding has the wire rod, is convenient for from circumference heating cable, guarantees that the cable is heated evenly, and when the lamp tube removed along the relative cable of the axial of cable, can make the winding have the cable of wire rod to obtain in time the solidification, further guarantees the cable compactibility.

Furthermore, an annular lampshade is arranged outside the lamp tube along the extending direction of the lamp tube, and the inner wall of the lampshade is made of a reflecting material, so that the energy is fully utilized, and the waste is avoided.

Further, the winding machine is provided with a PLC controller for controlling the winding tension and the winding speed of the wire.

Compared with the prior art, the invention has the following technical effects: the invention can realize rapid compaction of workpieces, complete compaction, winding and curing at one time, convenient and rapid loading and unloading, greatly reduce the working labor intensity, solve the problems of forming and curing of large-scale strip-shaped composite materials, and realize field forming and curing operation by connecting an external power supply. The invention can be used for one-time compaction molding and curing of the unidirectional fiber prepreg with joints at two ends.

Drawings

Fig. 1 is a schematic structural diagram of an integrated forming and curing device for manufacturing a carbon fiber solid core cable according to an embodiment of the present invention (arrows in the figure represent the moving direction of the integrated forming and curing device during operation).

Fig. 2 is a schematic structural diagram of a mold body of the integrated forming and curing equipment for preparing the carbon fiber solid cable in the embodiment of the invention.

Fig. 3 is a schematic structural diagram of a sleeve pressing die of the integrated forming and curing equipment for preparing the carbon fiber solid cable in the embodiment of the invention.

The reference numbers in the figures are: 1. the device comprises a sleeve pressing die, 101 parts of pressing parts, 102 parts of guiding parts, 103 parts of die splitting dies, 104 parts of pressing surfaces, 2 parts of winding machines, 3 parts of infrared heating devices, 4 parts of pre-compacted inhaul cables, 5 parts of mounting seats, 6 parts of guide rails and 7 parts of air cylinders.

Detailed Description

The present invention is not limited to the following embodiments, and those skilled in the art can implement the present invention in other embodiments according to the disclosure of the present invention, or make simple changes or modifications on the design structure and idea of the present invention, and fall into the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The specific embodiment of the invention is shown in fig. 1 to 3, and the integrated forming and curing equipment for preparing the carbon fiber solid cable comprises an installation seat 5 and a sleeve pressing die arranged on the installation seat 5, wherein a die pressing channel is formed in the sleeve pressing die, when the integrated forming and curing equipment is used, a pre-compacted cable 4 penetrates through the die pressing channel along the axial direction, and the sleeve pressing die can move forwards relative to the cable along the axial direction of the cable and compact the cable; the pre-compacted inhaul cable 4 is formed by winding pre-impregnated carbon fibers into a ring winding and then twisting the ring winding.

The winding machine 2 is arranged on the mounting seat 5 and is used for winding a wire rod to the compacted inhaul cable so as to tighten the compacted part of the inhaul cable; the cable winding machine is characterized by further comprising an infrared heating device 3 installed on the installation base 5, wherein the infrared heating device 3 is located behind the winding machine 2 and used for heating and curing the tightly bound cable.

In order to conveniently control the axial movement of the mounting seat 5 driving the sleeve pressing die 1, the winding machine 2 and the infrared heating device 3 along the inhaul cable, the device further comprises a guide rail 6 arranged along the axial direction of the inhaul cable, and the mounting seat 5 is matched with the guide rail 6 in a sliding and guiding manner. The bottom of the specific mounting seat 5 is provided with a roller driven by a motor, and the roller is in guide fit with the guide rail 6. Of course, the installation method of the mount 5 and the guide rail 6 and the driving method of the mount 5 are not limited to these, and those skilled in the art can select the driving method by themselves as needed, for example, the driving method of the gear and the rack in chinese patent application No. 201922144865.6.

The die pressing channel comprises a guide part 102 at the front end and a compaction part 101 coaxially connected with the rear end of the guide part 102, the compaction part 101 is used for compacting the pre-compacted guy cable 4 to a set radial size, the guide part 102 is arranged to facilitate the movement of the sleeving die along the length direction of the guy cable, and the guy cable is compacted in the moving process.

For convenience of use, the sleeve pressing mold 1 of the present embodiment is a split type, see fig. 3, and includes 2 split molds 103 which are oppositely arranged and can be mutually close to mold closing or mutually far away, mold pressing surfaces 104 are respectively arranged on opposite sides of the 2 split molds 103, and when the 2 split molds 103 are closed, the 2 mold pressing surfaces 104 jointly enclose the mold pressing channel; the device also comprises a driving mechanism arranged on the mounting seat 5, and the driving mechanism is used for driving the 2 split dies 103 to move close to or away from each other. When the inhaul cable pressing die is used, the 2 split dies 103 are controlled to be separated from each other, the pre-compacted inhaul cable 4 is controlled to be located between the 2 split dies 103, then the 2 split dies 103 are controlled to be close to each other to be matched, the pre-compacted inhaul cable 4 is controlled in the die pressing channel, the inhaul cable in the die pressing channel is compacted to a set size, the sleeve pressing die is moved along the length direction of the inhaul cable, and the inhaul cable is compacted step by step along with the movement of the sleeve pressing die.

The number of the driving mechanisms is 1, and the driving mechanisms are connected with one split die 103; or 2 driving mechanisms are correspondingly connected with the split dies 103 one by one, and the driving mechanisms are air cylinders 7 or electric push rods.

The sleeve pressing die 1 is detachably mounted on the mounting seat 5, and the sleeve pressing die 1 can be replaced according to the diameter of a prefabricated solid cable or the cross section shape of the solid cable.

More specifically, the driving mechanism of the present embodiment has 2 driving mechanisms, and is a cylinder 7. More specifically, 2 supporting beams are arranged on the mounting seat 5, one air cylinder 7 is respectively arranged on each of the 2 supporting beams, the air cylinders 7 on the 2 supporting beams are oppositely arranged, one of the 2 die bodies is detachably arranged on a piston rod of one air cylinder 7, the other one of the 2 die bodies is detachably arranged on a piston rod of the other air cylinder 7, the 2 die bodies are opposite, when the air cylinders 7 are started, the piston rods extend out and drive the die bodies to mutually approach to a die assembly, and then the die pressing surface 104 of the 2 die bodies forms a seamless die pressing channel, it needs to be noted that the cross section of the die pressing channel can be circular or special-shaped, the embodiment is circular, for convenience in installation, a connecting part is arranged on one side of each die body, which is far away from the die pressing surface 104, and is detachably connected with the piston rod through the connecting part, for example, the end part of the piston rod is provided with a plurality of first threaded holes, and one, the piston rod is connected with the connecting portion through bolts penetrating through the first threaded holes and the second threaded holes, and nuts are arranged in a bolt matching mode.

In order to facilitate disassembly and replacement, the winding machine 2 and the infrared heating device 3 are both detachably mounted on the mounting seat 5. Wherein the winding machine 2 is provided with a PLC controller for controlling the winding tension and the winding speed of the wire; infrared heating device 3 includes annular lamp tube, during the use, annular lamp tube cover is established on the winding has the cable of wire rod, is convenient for from circumference heating cable, guarantees that the cable is heated evenly, and when the lamp tube removed along the relative cable of the axial of cable, can make the winding have the cable of wire rod to obtain in time the solidification, further guarantees the cable compactibility.

The outside of fluorescent tube is equipped with annular lamp shade along the extending direction of fluorescent tube, the inner wall of lamp shade is reflecting material, is convenient for to the make full use of energy, avoids extravagant. Furthermore, the heating element in the lamp tube can be carbon fiber or other heating materials.

The working method of the integrated forming and curing equipment for preparing the carbon fiber solid stay cable comprises the following steps: the device is put into a designated position, the rear end of the pre-compacted inhaul cable 4 is controlled to be positioned between 2 die split bodies of the sleeving and pressing die, an air source is connected, a control switch of an air cylinder 7 is turned on, at the moment, a piston rod of the air cylinder 7 pushes the die split bodies 103 to move towards the pre-compacted inhaul cable 4 to be matched, the pre-compacted inhaul cable 4 between the sleeving and pressing dies is extruded, the pressure can be adjusted between 0.5 and 1MPa, then the sleeving and pressing die is moved to move forwards along the axial direction of the pre-compacted inhaul cable 4, the speed can be selected to be 1 to 2 meters per minute, the pre-compacted inhaul cable 4 is compacted after passing through the sleeving and pressing die 1, a wire is wound by a winding machine 2 arranged behind the sleeving and pressing die 1, the compacted inhaul cable is tightly bound, and the inhaul cable which is tightly compacted and tightly bound is heated and solidified by an infrared heating device 3. The pressure and curing time of the overmolding die 1 need to be adjusted according to the properties of the prepreg resin system.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and their concepts should be equivalent or changed within the technical scope of the present invention.

Claims

1. The utility model provides an integrated form shaping solidification is equipped for preparation of solid core cable of carbon fiber which characterized in that: the cable pressing device comprises a mounting seat (5), a sleeving pressing die (1), a winding machine (2) and an infrared heating device (3), wherein the sleeving pressing die (1) is sequentially mounted on the mounting seat (5) from front to back, the winding machine is used for winding a wire rod to the compacted cable so as to compact the compacted part of the cable, the infrared heating device is used for heating and curing the compacted cable, a die pressing channel is formed in the sleeving pressing die (1), when the cable pressing device is used, the pre-compacted cable (4) penetrates through the die pressing channel along the axial direction, and the sleeving pressing die (1) can move forwards relative to the cable along the axial direction of the cable and compact the cable; the pre-compacted inhaul cable (4) is formed by winding pre-impregnated carbon fibers into a ring winding and then twisting the ring winding.

2. The integrated form curing apparatus for carbon fiber solid core cable production of claim 1, wherein: the die pressing channel comprises a guide part (102) at the front end and a compaction part (101) coaxially connected with the rear end of the guide part (102), wherein the compaction part (101) is used for compacting the pre-compacted inhaul cable (4) to a set radial dimension.

3. The integrated form curing apparatus for carbon fiber solid core cable production of claim 1, wherein: the cover pressing die (1) is split and comprises 2 split dies (103) which are arranged oppositely and can be close to a die assembly or be far away from each other, die pressing surfaces (104) are arranged on one opposite sides of the 2 split dies (103), and when the 2 split dies (103) are assembled, the 2 die pressing surfaces (104) jointly surround a die pressing channel; the device also comprises a driving mechanism arranged on the mounting seat (5), and the driving mechanism is used for driving the 2 split dies (103) to move close to or away from each other.

4. The integrated form curing apparatus for carbon fiber solid core cable production of claim 3, wherein: the number of the driving mechanisms is 1, and the driving mechanisms are connected with one split die (103); or 2 driving mechanisms are correspondingly connected with the split dies (103) one by one.

5. The integrated form curing apparatus for carbon fiber solid core cable production of claim 3, wherein: the driving mechanism is a cylinder (7) or an electric push rod.

6. The integrated form curing apparatus for carbon fiber solid core cable production of claim 1, wherein: the cross section of the molding channel is circular or irregular.

7. The integrated form curing apparatus for carbon fiber solid core cable production of claim 1, wherein: the sleeve pressing die (1) is detachably arranged on the mounting seat (5); and/or the winding machine (2) is detachably arranged on the mounting seat (5); and/or the infrared heating device (3) is detachably arranged on the mounting seat (5).

8. The integrated form curing apparatus for carbon fiber solid core cable production of claim 1, wherein: the infrared heating device (3) comprises an annular lamp tube, and when the infrared heating device is used, the annular lamp tube is sleeved on a pull rope wound with wires.

9. The integrated form curing apparatus for carbon fiber solid core cable production of claim 8, wherein: the lamp tube is characterized in that an annular lamp shade is arranged outside the lamp tube along the extension direction of the lamp tube, and the inner wall of the lamp shade is made of a reflecting material.

10. The integrated form curing apparatus for carbon fiber solid core cable production of claim 1, wherein: the winding machine (2) is provided with a PLC controller for controlling the winding tension and the winding speed of the wire.