CN109895419B - Pressing device for long-plate type performance detection sample piece made of carbon fiber composite material - Google Patents
Pressing device for long-plate type performance detection sample piece made of carbon fiber composite material Download PDFInfo
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- CN109895419B CN109895419B CN201910128583.9A CN201910128583A CN109895419B CN 109895419 B CN109895419 B CN 109895419B CN 201910128583 A CN201910128583 A CN 201910128583A CN 109895419 B CN109895419 B CN 109895419B
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Abstract
The invention relates to a pressing device for a long-plate type performance detection sample piece made of a carbon fiber composite material, which comprises four systems: the mould comprises an upper pressing plate, a lower pressing plate and first to fifth interlayer devices, the electric heating system comprises a heating wire, a mica paper tube and a heating zone, the bubble removing system comprises a turnover type roller and an ultrasonic generator, and the overall control system comprises a control box.
Description
Technical Field
The invention relates to pressing and forming of a carbon fiber composite material, in particular to a pressing device of a long-plate type performance detection sample piece of the carbon fiber composite material.
Background
Adopts a self-heating and bubble removing system and an overall control system to further provide a pressing device of a long-plate type performance detection sample piece made of carbon fiber composite material, the device can ensure the compactness, few bubbles and surface finish of the carbon fiber long plate type molded piece, but related die preparation processes are introduced less all the time, the paper of classification number TB332 unit number 10058 about the performance research of the carbon fiber composite material reports a forming device of the carbon fiber unidirectional composite material, the device described in the paper needs external equipment to provide the processes of heating, pressurizing, removing bubbles and the like for the forming process, we report a more advanced and efficient forming apparatus that provides heat, pressure and ultrasonic bubble removal capabilities, and the heating time, the ultrasonic wave generation time and the like can be controlled by the control box, so that semi-automatic control of the whole process is realized.
Disclosure of Invention
The invention aims to provide a pressing device of a long-plate type performance detection sample piece made of carbon fiber composite material, which can ensure the compactness, no air bubbles and surface smoothness of the long-plate type carbon fiber type sample piece.
In order to achieve the purpose, the pressing device for the long-plate type performance detection sample piece made of the carbon fiber composite material comprises four systems: the device comprises a mould, an electric heating system, a bubble removing system and an overall control system, wherein the mould comprises an upper pressing plate, a lower pressing plate and first to fifth interlayer devices, the electric heating system comprises an electric heating wire, a mica paper tube and a heating zone, the bubble removing system comprises a turnover type roller and an ultrasonic generator, and the overall control system comprises a control box;
the method is characterized in that: the first interlayer device, the second interlayer device, the fifth interlayer device, the third interlayer device, the fourth interlayer device and the fourth interlayer device are sequentially and tightly attached from front to back, the central lines of the first interlayer device, the second interlayer device, the third interlayer device and the fourth interlayer device are on the same plane, the central lines of the first interlayer device, the second interlayer device, the third interlayer device and the fourth interlayer device are respectively provided with two positioning pins, the positioning sheaths are positioned on the same plane and distributed in a staggered manner, the upper surface and the lower; the convex pressing areas of the upper pressing plate and the lower pressing plate are tightly attached to five interlayer devices such as a first interlayer device, and cavities formed by the pressing areas and the first to fifth interlayer devices are forming areas;
the electric heating wire is arranged in the heating zone;
the mica paper tube is sleeved on the outer layer of the electric heating wire and is arranged in the heating zone together;
the overturning type roller is 6mm long and is positioned at the inlet of only one side of the protruding pressing area of the upper pressing plate and the lower pressing plate;
the ultrasonic generator is tightly attached to the first interlayer device;
the control box is connected with the ultrasonic generator and the electric heating wire through leads;
the first interlayer device, the second interlayer device, the third interlayer device and the fourth interlayer device are tightly combined through a screw; the upper pressing plate, the lower pressing plate, the first interlayer device, the third interlayer device and the fifth interlayer device are tightly combined through screws, and the five interlayer devices and the upper pressing plate and the lower pressing plate are all made of HQ-33 die steel materials; the turnover type roller is tightly combined with the upper pressing plate and the lower pressing plate through nuts and screws;
the width of a forming area formed by the upper pressing plate and the five interlayer devices is 6mm, and the thickness of the forming area is 2 mm;
the width of a forming area formed by the lower pressing plate and the five interlayer devices is 12.5mm, and the thickness of the forming area is 2 mm;
the four cavities on the upper and lower surfaces of the second interlayer device and the fourth interlayer device are all 280mm long, 6mm wide and 20mm thick;
the turnover type rolling wheels are divided into two types, the length of the turnover type rolling wheel connected with the upper pressing plate pressing area is 6mm, the length of the turnover type rolling wheel connected with the lower pressing plate pressing area is 12mm, the turnover type rolling wheels can be turned over up and down, the angle can be adjusted according to the requirement, and the turnover type rolling wheels can be placed in wheel placing grooves formed in the upper pressing plate and the lower pressing plate when necessary;
the height of the wheel placing groove is slightly larger than the diameter of the turnover type roller, and the length of the wheel placing groove is 6 mm;
the mica paper tube is 280mm long and 6mm in outer diameter;
the ultrasonic generator is tightly attached to the mold through a screw;
the working process of the invention is as follows: the first interlayer device to the fifth interlayer device are assembled in sequence and tightly matched by high-hardness screws, then power is supplied for preheating before pressing, after 5 minutes, the carbon fiber composite material can be placed in a forming area in a main body, an ultrasonic wave generating device is started after the material is placed, then turnover rollers of an upper pressing plate and a lower pressing plate are respectively opened, the turnover rollers roll the composite material in the pressing area for 5-6 times according to a certain direction, then the upper pressing plate and the lower pressing plate are placed in corresponding positions and pressed through threads, meanwhile, the ultrasonic waves and a heating wire are kept in working states, and the heating wire can set corresponding time and corresponding temperature according to curing processes of different reinforced materials. And (3) starting a demoulding process after solidification is finished, firstly, disassembling screws on the upper pressing plate and the lower pressing plate, separating the upper pressing plate and the lower pressing plate from the isolating layer main body through the mould taking groove, and conveniently taking a finished sample strip through loosening and pressing the isolating layer device when the sample strip cannot be taken out due to the caking property of the reinforcing material, so that the precision and the mould taking rate of the sample strip are ensured. After the device is used for processing the carbon fiber composite material, the product precision is easy to control, the design precision requirement of the product is completely met, the deviation is about +0.05 mm, the length can reach 300 mm, 8 detection sample strips with 2 specifications can be simultaneously manufactured, the interface layer shear, the sample strip stretching and the sample strip compression performance detection can be met. The number of micro bubbles in the finished product treated by the turnover type roller and the ultrasonic device is obviously reduced.
The invention has the beneficial effects that: when the long-plate-type performance detection sample piece made of the carbon fiber composite material is pressed, bubbles generated on the surface of the carbon fiber precursor coated with the epoxy resin during laying can be removed through the overturning roller before pressing along with the rolling of the upper pressing plate, the overturning roller can be placed in the wheel placing groove when the carbon fiber precursor is idle, and the bubbles in the carbon fiber precursor coated with the epoxy resin can be completely removed through the propagation of ultrasonic waves generated by the ultrasonic generator in solid metal of a die during pressing by utilizing the characteristic that the propagation efficiency of the ultrasonic waves in the solid metal is higher; the electric heating system is arranged in the cavities of the upper and lower surfaces of the second interlayer device and the fourth interlayer device, the position of the electric heating wire in the cavity is at the same horizontal height with the carbon fiber precursor coated with the epoxy resin, so that the heat generated by the electric heating wire can be received to the maximum extent, and the operation efficiency is high and the operation is convenient and simple through the control box; the surface smoothness of the carbon fiber composite material long plate type performance detection sample piece is ensured by utilizing the high requirements of the roughness of the surfaces of the first to fifth interlayer devices, the upper pressing plate and the lower pressing plate.
Drawings
FIG. one is an enlarged view of the assembly front view and the roller structure;
FIG. two is an assembled top view;
FIG. three is a schematic view of the first spacer;
FIG. four is a schematic view of the second spacer (the shape and structure of the fourth spacer are the same and therefore omitted);
FIG. five is a schematic view of a third spacer;
FIG. six is a schematic view of the upper pressing plate and a partially enlarged view of the roller base at the pressing area end;
wherein: 1-a first interlayer device, 2-a second interlayer device, 3-a third interlayer device, 4-a fourth interlayer device, 5-a fifth interlayer device, 6-an upper pressing plate, 7-an ultrasonic generator, 8-a forming area, 9-a lower pressing plate, 10-a pressing heating area, 11-a turnover roller, 11.1-a roller shaft, 11.2-a bracket, 11.3-a roller, 11.4-a wheel groove and 12-a pressing area.
Detailed Description
The invention is described in further detail below with reference to the following figures and specific examples:
1. the first interlayer device (1), the second interlayer device (2), the third interlayer device (3), the fourth interlayer device (4) and the fifth interlayer device (5) are used as main bodies and are tightly matched and connected by screws; four convex pressing areas (12) on the upper pressing plate (6) and the lower pressing plate (9) are respectively embedded into four corresponding concave forming areas (8) formed by five layers of interlayer devices, the upper surface and the lower surface of the upper pressing plate (6) and the lower pressing plate (9) are respectively provided with nine rows of through holes, the interlayer devices are provided with corresponding threads, the upper pressing plate and the lower pressing plate can be connected through proper screws, and the upper pressing plate (6) and the lower pressing plate (9) are pressed by the screws to provide pressure to extrude redundant reinforcing materials so as to ensure the proportion of the reinforcing materials to the carbon fiber matrix; cavities are arranged on the upper and lower surfaces of the second interlayer device (2) and the fourth interlayer device (4), the length of each cavity is 280mm, the width of each cavity is 6mm, the height of each cavity is 20mm, holes with the diameters of 2mm and the lengths of 5mm are formed in the front and the rear of each cavity, the cavities are used for placing heating wires wrapped by mica paper tubes, and wires of the heating wires penetrate out of the holes in the front and the rear of the cavities and are controlled by a control box; two edges of each pressing area (12) of the upper pressing plate (6) and the lower pressing plate (9) are provided with turnover rollers; the ultrasonic generator (7) is fastened on the outer surface of the first interlayer device (1) by screws.
2. The five interlayer devices are used for placing carbon fiber bundles soaked by reinforced materials in four sunken forming areas (8), the upper pressing plates (6) and the lower pressing plates (9) are provided with raised pressing areas (12) for pressing and forming the carbon fiber bundles, the ton-level pressure can be achieved through the pressure exerted by the threads on the pressing plates so as to extrude the reinforced materials, and a high-quality and high-precision detection sample strip is manufactured.
3. The electric heating wires wrapped by the mica paper tube in the pressing area (12) of the second interlayer device (2) and the fourth interlayer device (4) are used for heating the carbon fiber bundles in pressing, so that the reinforcing materials soaked on the carbon fiber bundles have higher fluidity, the redundant reinforcing materials can be conveniently extruded, and the number of bubbles in the reinforcing materials can be reduced.
4. And the turnover type rollers (11) on the upper pressing plate (6) and the lower pressing plate (9) are used for rolling the carbon fiber bundles placed in the forming area (8) so as to drive the bubbles in the reinforcing material to reduce the number of the bubbles in a finished product.
5. And the ultrasonic generator (7) is used for carrying out ultrasonic processing on the carbon fiber bundles placed in the forming area (8) so as to remove microscopic bubbles in the reinforcing material.
6. Among the above-mentioned technical scheme, convertible gyro wheel (11) can overturn from top to bottom round the double-end screw with the upset support, realize the conversion between work and the non-operating condition, through the roll extrusion of convertible gyro wheel (11), can reduce effectively and reduce unnecessary working space.
7. The first interlayer device (1) to the fifth interlayer device (5) are assembled in sequence and are tightly matched by high-hardness screws, then supplying power to preheat before pressing the mould, putting the carbon fiber composite material into a forming area (8) in the main body after 5 minutes, opening an ultrasonic generator (7) after the upper and lower pressing plates (6) and (9) of the material are put in, then respectively opening the turnover rollers (11) of the upper and lower pressing plates (6) and (9) and enabling the turnover rollers (11) to roll the composite material in the pressing area (12) for 5-6 times according to a certain direction, then the upper and lower pressing plates (6), (9) are put into corresponding positions and pressed by the threads, meanwhile, the ultrasonic generator (7) and the heating wires are kept in working states, and the heating wires can set corresponding time and corresponding temperature according to curing processes of different reinforcing materials. And (3) starting a demoulding process after solidification is finished, firstly, removing screws on the upper pressing plate (6) and the lower pressing plate (9), separating the upper pressing plate (6) and the lower pressing plate (9) from the isolating layer main body through a mould taking groove, and when the sample strip cannot be taken out due to the caking property of the reinforcing material, conveniently taking the finished sample strip through loosening and pressing the first to fifth interlayer devices (1), (2), (3), (4) and (5), so that the precision and the mould taking rate of the sample strip are ensured. After the device is used for processing the carbon fiber composite material, the product precision is easy to control, the design precision requirement of the product is completely met, the deviation is about +0.05 mm, the length can reach 300 mm, 8 detection sample strips with 2 specifications can be simultaneously manufactured, the interface layer shear, the sample strip stretching and the sample strip compression performance detection can be met. The number of micro bubbles in the finished product processed by the turnover type roller (11) and the ultrasonic generator (7) is obviously reduced.
8. The working sequence of the specification is completed by actual operation procedures, and the time intervals in the procedures can be matched with the manufacturing process in the actual operation to achieve the proper connection of the procedures. Details not described in this specification are within the skill of the art that are well known to those skilled in the art.
Claims (1)
1. The utility model provides a suppression device of long board-like performance detection appearance spare of carbon-fibre composite, it includes four systems: the device comprises a mould, an electric heating system, a bubble removing system and an overall control system; the mold comprises an upper pressing plate (6), a lower pressing plate (9), a first interlayer device (1), a second interlayer device (2), a third interlayer device (3), a fourth interlayer device (4) and a fifth interlayer device (5), and the electric heating system comprises an electric heating wire, a mica paper tube and a heating zone (10); the bubble removing system comprises a turnover type roller (11) and an ultrasonic generator (7); the overall control system comprises a control box; the method is characterized in that: the first interlayer device, the second interlayer device (2), the third interlayer device (3), the fourth interlayer device (4) and the fifth interlayer device (5) are sequentially and tightly attached from front to back, the central lines of the first interlayer device, the second interlayer device, the third interlayer device, the fourth interlayer device and the fifth interlayer device are arranged on the same plane, the positioning sheaths are positioned on the same plane and distributed in a staggered manner, cavities are respectively arranged on the upper surface and the lower surface of the second interlayer device (2) and the upper surface and the lower surface of the fourth interlayer device (4), the cavities are 290mm long, 6mm wide and 20mm high, the cavities are heating zones (10), and holes with the diameters of 2mm and the lengths of 5mm are arranged in the front; the convex pressing area (12) of the upper pressing plate (6) and the lower pressing plate (9) is tightly attached to five interlayer devices such as the first interlayer device (1), and a cavity formed by the pressing area (12) and the first interlayer device (1), the second interlayer device (2), the third interlayer device (3), the fourth interlayer device (4) and the fifth interlayer device (5) is a forming area (8); wheel placing grooves are formed in the inlet sides of the upper pressing plate (6) and the lower pressing plate (9); the electric heating wire is arranged in the heating zone (10); the mica paper tube is sleeved on the outer layer of the electric heating wire and is arranged in the heating zone (10) together; the length of the turnover type roller (11) is 6mm, and the turnover type roller is positioned at the inlet of only one side of a convex pressing area (12) of the upper pressing plate (6) and the lower pressing plate (9); the ultrasonic generator (7) is tightly attached to the first interlayer device (1); the control box is connected with the ultrasonic generator (7) and the electric heating wire through a lead; the upper pressing plate (6) and the lower pressing plate (9) are tightly connected with the first interlayer device (1), the third interlayer device (3) and the fifth interlayer device (5) through screws and nuts; the first interlayer device (1), the second interlayer device (2), the third interlayer device (3), the fourth interlayer device (4) and the fifth interlayer device (5) are tightly connected through a screw and a nut; the turnover type roller (11) is tightly connected with the upper pressing plate (6) and the lower pressing plate (9) through a screw and a nut, can be turned over up and down, adjusts the angle, and saves space and is arranged in the wheel placing groove; the ultrasonic generator (7) is tightly connected with the die through a bolt; the upper pressing plate (6), the lower pressing plate (9), the first interlayer device (1), the second interlayer device (2), the third interlayer device (3), the fourth interlayer device (4) and the fifth interlayer device (5) are made of HQ-33 die steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910128583.9A CN109895419B (en) | 2019-02-21 | 2019-02-21 | Pressing device for long-plate type performance detection sample piece made of carbon fiber composite material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910128583.9A CN109895419B (en) | 2019-02-21 | 2019-02-21 | Pressing device for long-plate type performance detection sample piece made of carbon fiber composite material |
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| CN109895419A CN109895419A (en) | 2019-06-18 |
| CN109895419B true CN109895419B (en) | 2021-01-08 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015025166A1 (en) * | 2013-08-23 | 2015-02-26 | Pentaxia Ltd | Microwave curing of composite materials |
| CN204869706U (en) * | 2015-07-29 | 2015-12-16 | 溧阳二十八所系统装备有限公司 | Be used for fashioned self -heating platform of fibre composite board |
| CN205929505U (en) * | 2016-08-05 | 2017-02-08 | 星领贸易有限公司 | Carbon fiber product's forming device |
| CN107097435A (en) * | 2017-06-27 | 2017-08-29 | 东莞市昌亿复合材料机械科技有限公司 | A kind of vacuum forming machine of composite and the forming method of composite |
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2019
- 2019-02-21 CN CN201910128583.9A patent/CN109895419B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015025166A1 (en) * | 2013-08-23 | 2015-02-26 | Pentaxia Ltd | Microwave curing of composite materials |
| CN204869706U (en) * | 2015-07-29 | 2015-12-16 | 溧阳二十八所系统装备有限公司 | Be used for fashioned self -heating platform of fibre composite board |
| CN205929505U (en) * | 2016-08-05 | 2017-02-08 | 星领贸易有限公司 | Carbon fiber product's forming device |
| CN107097435A (en) * | 2017-06-27 | 2017-08-29 | 东莞市昌亿复合材料机械科技有限公司 | A kind of vacuum forming machine of composite and the forming method of composite |
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| CN109895419A (en) | 2019-06-18 |
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