CN216782388U

CN216782388U - Online curing device of metal-clad carbon fiber composite wire prepreg

Info

Publication number: CN216782388U
Application number: CN202220190969.XU
Authority: CN
Inventors: 仝伟; 张砚; 刘须尧; 宋宁宁; 宋磊; 徐发春
Original assignee: Jiangsu Yiding Composite Technology Co ltd
Current assignee: Jiangsu Yiding Composite Technology Co ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-06-21
Anticipated expiration: 2032-01-25

Abstract

The utility model discloses an online curing device for a prepreg of a metal-coated carbon fiber composite wire. The method mainly solves the problem of on-line continuous curing of the prepreg of the metal-coated carbon fiber composite wire. The utility model mainly comprises a curing pipeline, a straightening current collector, a short circuit annealing control system, a temperature control system and the like. The heater in the curing pipeline is connected with the alternating current contactor through the contact type temperature measuring meter to control the temperature and the on-off of heating current. And the alignment current collector loads the direct current output by the annealing control system to the metal outer layer of the steel ladle composite material prepreg, and the wire is directly heated by short-circuit current to reach the curing temperature of the prepreg. The annealing system outputs direct current large current and low voltage in the heating and curing process of the composite wire prepreg, and the annealing voltage is only related to the wire drawing speed under the condition of determined temperature rise. The utility model can automatically control the pulling line speed and the curing temperature in a tracking way, and simultaneously greatly improves the production efficiency and obviously reduces the energy consumption compared with the traditional process for pulling and extruding the bar by the carbon fiber composite material.

Description

Online curing device of metal-clad carbon fiber composite wire prepreg

Technical Field

The utility model relates to the field of metal carbon fiber composite material manufacturing, in particular to an online curing device for a prepreg of a metal-clad carbon fiber composite wire.

Background

The metal-clad carbon fiber composite wire is characterized in that longitudinal continuous carbon fibers are used as a reinforcing material, thermosetting epoxy resin is used as a matrix, and the outer layer of the metal-clad carbon fiber composite wire is clad with materials such as copper and aluminum. The common preparation method of the carbon fiber composite wire rod is that carbon fiber tows are fully soaked by resin and are prepared through the steps of mechanical traction, mold heating, forming and curing and the like. After the composite wire material is cured and molded in the heating mold, there is a possibility that the epoxy resin may stick to the mold when the epoxy resin is separated from the mold, and particularly, when the line speed is high, the above-mentioned problem still occurs even if the release agent is added. This can result in uneven or starved surfaces and severely limits production efficiency. In addition, the solidification die opening is easy to cause the situation of sizing material solidification die blocking, and needs to be cleaned frequently, otherwise the wire rod material is easy to break in the drawing process. The application occasions of the carbon fiber composite material wire rod are mostly required to be not connected, so that the whole wire rod is scrapped when the wire rod is frequently broken, and the production cost is high.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the online curing device for the prepreg of the metal-clad carbon fiber composite wire, which can completely avoid the problems of difficult demoulding and product quality caused by the difficult demoulding, greatly improve the production efficiency and reduce the production cost.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

an online curing device for a prepreg of a metal-coated carbon fiber composite wire comprises a curing tube, a straightening current collector, an annealing control system and a temperature control system; the alignment current collector includes first alignment current collector, second alignment current collector and third alignment current collector, the curing tube includes first curing tube and second curing tube, first alignment current collector, first curing tube, second alignment current collector, second curing tube, third alignment current collector are placed in proper order to the device along its direction of production, annealing control system installs in second curing tube department, temperature control system is used for controlling the intraductal temperature of curing and keeps invariable.

Furthermore, the curing pipeline adopts a multilayer structure, a plurality of annular heaters and temperature sensors are attached to the metal pipe on the innermost layer, the middle layer is made of heat insulation materials, and the outer layer is a protective shell.

Furthermore, the annular heater, the temperature sensor, an external temperature control meter, an alternating current power supply and an alternating current contactor jointly form a temperature control system so as to control the temperature of the metal pipe on the inner layer of the curing pipe to keep relatively constant.

Furthermore, the alignment current collector is composed of two groups of pulleys, a plurality of pulleys in each group, a mercury slip ring and a drainage bar, wherein the two groups of pulleys are arranged on supporting plates which are perpendicular to each other, the mercury slip ring is arranged on the axis of each pulley, the drainage bar is connected with the slip ring and a direct-current power supply, the position of each pulley can be adjusted to ensure that the pulley is in close contact with a wire, and mercury conductive liquid is arranged in the mercury slip ring.

Preferably, the production direction of the support plate is horizontally and vertically arranged in sequence.

Preferably, each group of support plates is provided with 5 pulleys, and the pulleys are divided into two parallel groups, namely 2 pulleys in one group and 3 pulleys in one group.

Further, the annealing control system outputs direct current through a frequency converter, calculates a K value under a required temperature rise condition according to a short circuit annealing principle, and tracks and controls the speed of the wire according to the characteristic that the annealing voltage is inversely proportional to the square root of the linear speed, so that the prepreg is cured under a stable temperature condition.

Compared with the prior art, the utility model has the beneficial effects that: 1. the heating and curing mode provides background temperature auxiliary heating for the curing tube, and the prepreg wire outer layer metal self-heating avoids the defects that the curing mold is easy to stick and block, so that the quality problem is caused. 2. Since the curing section has no mold to restrain the wire prepreg, the processing speed can be increased to 2 to 5 times of the usual preparation method.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of a straightening current collector according to the present invention;

FIG. 3 is a schematic structural view of a curing tube of the present invention.

In the figure: 1. the device comprises a first straightening current collector, a second straightening current collector, a third straightening current collector, a curing tube, a cooling control system, a first straightening current collector, a second straightening current collector, a third straightening current collector, a curing tube, a curing control system, a first straightening pulley, a second straightening pulley, a curing tube, a second straightening pulley, a third straightening pulley, a curing bolt, a third straightening pulley, a curing support, a second straightening pulley, a curing slide, a mercury slip ring, a third straightening pulley, a curing slide, a temperature sensor, a thermal insulation layer, a.

Detailed Description

To further illustrate the technical means and effects of the present invention for achieving the intended purpose of the utility model, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

As shown in fig. 1, the on-line curing device for prepreg of metal-coated carbon fiber composite wire according to the present invention sequentially includes, along a production direction thereof, a first alignment current collector 1, a curing tube 4, a second alignment current collector 2, a curing tube 4, and a third alignment current collector 3. Under the traction action of the pay-off and take-up device for straightening the current collector, the prepreg of the steel ladle carbon fiber composite wire is ensured not to be rubbed or contacted with the inner wall of the pipe when passing through the curing pipe 4. The straightening pulley 6 is properly and closely contacted with the prepreg of the steel ladle carbon fiber composite wire to achieve the straightening effect by adjusting the first straightening current collector 1, the second straightening current collector 2 and the adjusting bolt 7 of the third straightening current collector 3.

As shown in FIG. 3, the curing pipe has a multi-layer structure, wherein a plurality of ring heaters 12 and temperature sensors 13 are attached to the innermost metal pipe, a heat insulation layer 14 is arranged in the middle, and a protective shell 15 is arranged on the outer layer. The annular heater 12 is evenly attached to the outer surface of the metal tube 11 inside the curing tube 4, the resistance wire inside the annular heater is electrified to generate heat to heat the metal tube 11, the temperature of the metal tube is measured in real time through the temperature sensor 13 in contact with the metal tube 11, the temperature sensor 13 and the temperature control meter and the alternating current contactor form a temperature control loop, the metal tube 11 can be kept at a certain temperature, and the temperature is lower than the curing temperature of the prepreg of the metal-clad carbon fiber composite wire, so that the prepreg of the steel-clad carbon fiber composite wire has a constant external temperature environment when passing through the inner cavity of the metal tube 11, and is free from seasonal climate factors, and the fluctuation of the curing process conditions is avoided. The metal pipe 11 is equipped with the heat preservation insulating layer 14 and the protective housing 15 in turn, the heat preservation insulating layer 14 plays the effect of heat preservation and energy saving, and the protective housing 15 prevents that the curing tube from being damaged by external force impact, also protects operating personnel from scalding.

As shown in fig. 2, the alignment current collector is composed of two groups of several alignment pulleys 6, each group of several alignment pulleys 6 is mounted on the support plates perpendicular to each other, and a mercury slip ring 9 mounted on the axle center of the pulleys and a current guiding bar 10 connecting the slip ring and the dc power supply, the alignment pulleys 6 can be adjusted in position to ensure close contact with the wire, and mercury conductive liquid is provided inside the mercury slip ring 9.

The frequency converter of the annealing control system 5 provides a direct current power supply, current is conducted to the stainless steel outer layer of the prepreg of the steel-clad carbon fiber composite wire through the drainage bar 10, the mercury slip ring 9 and the straightening pulley 6, and the metal layer is heated through the direct current so that the temperature of the metal layer reaches the curing temperature of the prepreg of the steel-clad carbon fiber composite wire. According to the short circuit annealing principle, the curing temperature and the production line speed, the curing temperature can be kept unchanged, and the production line speed and the output voltage of an annealing control system can be tracked and controlled. After the prepreg of the steel ladle carbon fiber composite wire completely passes through the utility model, the prepreg can be completely cured, and the subsequent cooling and tray filling processes are carried out.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides an online solidification equipment of metal package carbon fiber composite wire material prepreg which characterized in that: comprises a curing tube, a straightening current collector, an annealing control system and a temperature control system; the alignment current collector includes first alignment current collector, second alignment current collector and third alignment current collector, the curing tube includes first curing tube and second curing tube, first alignment current collector, first curing tube, second alignment current collector, second curing tube, third alignment current collector are placed in proper order to the device along its direction of production, annealing control system installs in second curing tube department, temperature control system is used for controlling the intraductal temperature of curing and keeps invariable.

2. The on-line curing device for the prepreg of the metal-clad carbon fiber composite wire according to claim 1, wherein: the curing pipeline is of a multilayer structure, a plurality of annular heaters and temperature sensors are attached to the metal pipe on the innermost layer, the middle layer is made of heat insulation materials, and the outer layer is a protective shell.

3. The on-line curing device for the prepreg of the metal-clad carbon fiber composite wire according to claim 2, wherein: the annular heater, the temperature sensor, the external temperature control meter, the alternating current power supply and the alternating current contactor jointly form a temperature control system so as to control the temperature of the metal pipe on the inner layer of the curing pipe to keep relatively constant.

4. The on-line curing device for the prepreg of the metal-clad carbon fiber composite wire according to claim 1, wherein: the straightening current collector is composed of two groups of pulleys, a plurality of pulleys in each group, a mercury slip ring and a drainage bar, wherein the two groups of pulleys are arranged on supporting plates which are perpendicular to each other, the mercury slip ring is arranged on the axis of each pulley, the drainage bar is connected with the slip ring and a direct-current power supply, and mercury conductive liquid is arranged in the mercury slip ring.

5. The on-line curing device for the prepreg of the metal-clad carbon fiber composite wire according to claim 4, wherein: the production direction of the supporting plate is sequentially horizontal and vertical.

6. The on-line curing device for the prepreg of the metal-coated carbon fiber composite wire according to claim 4 or 5, wherein: be equipped with 5 pulleys in every group backup pad, the pulley divide into parallel two sets ofly, and a set of 2 is a set of, and a set of 3.

7. The on-line curing device for the prepreg of the metal-clad carbon fiber composite wire according to claim 1, wherein: the annealing control system outputs direct current through a frequency converter, calculates a K value under a required temperature rise condition according to a short circuit annealing principle, and controls the linear speed in a tracking manner according to the characteristic that the annealing voltage is inversely proportional to the square root of the linear speed, so that the prepreg is cured under a stable temperature condition.