CN210553130U - Composite material forming die based on air bag - Google Patents
Composite material forming die based on air bag Download PDFInfo
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- CN210553130U CN210553130U CN201921053445.0U CN201921053445U CN210553130U CN 210553130 U CN210553130 U CN 210553130U CN 201921053445 U CN201921053445 U CN 201921053445U CN 210553130 U CN210553130 U CN 210553130U
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Abstract
The utility model relates to a composite material forming die based on gasbag, composite material forming die based on gasbag includes the forming die body, the forming die body includes inflatable expanded mandrel, bed die, is used for heating the heating device of mandrel and is used for giving the inflation device of mandrel inflation or gassing, the bed die cover is established in the periphery of mandrel, and the mandrel still keeps in the bed die after inflating and expanding; and a pressure sensor for detecting the pressure of the inner surface of the female die is arranged on the inner wall of the female die, and the air charging and discharging device is positioned at one end of the core die. The utility model has the advantages that: the composite material forming die based on the air bag of the utility model heats the core die and inflates to expand, so that pressure is generated between the core die and the female die to compact the composite material, the cloth is uniform, and the composite material is fixed and formed; the core mold has the characteristics of no damage to the internal structure of the product and easy removal of the core mold.
Description
Technical Field
The utility model belongs to the technical field of the combined material processing, concretely relates to combined material forming die based on gasbag.
Background
The composite material forming process is the development basis and condition of the composite material industry. With the widening of the application field of the composite material, the composite material industry is rapidly developed, some forming processes are increasingly perfect, new forming methods are continuously emerging, and at present, most of the existing composite material forming processes need to damage a core mold or wear the inner surface of a finished product in order to take out the finished product under the condition that the composite material has a space inside. Therefore, the development of composite material molding processes has become an important issue in the field of composite material industry.
In view of this, this patent is filed.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model provides a combined material forming die based on gasbag, it has the inner structure that can not damage the product, takes out characteristics such as mandrel easily.
The utility model aims at providing a combined material forming die based on gasbag.
The utility model also aims to provide an above-mentioned combined material forming die based on gasbag is to combined material hot briquetting's method.
According to the utility model discloses a combined material forming die based on gasbag, combined material forming die based on gasbag includes the combined material forming die body based on gasbag, the combined material forming die body based on gasbag includes inflatable inflation's mandrel, bed die, is used for heating the heating device of mandrel and is used for giving the mandrel inflation or gassing device of gassing, the bed die cover is established in the periphery of mandrel, and the mandrel still keeps in the bed die after inflating the inflation; and a pressure sensor for detecting the pressure of the inner surface of the female die is arranged on the inner wall of the female die, and the air charging and discharging device is positioned at one end of the core die.
According to the utility model discloses a embodiment's combined material forming die based on gasbag, wherein, be equipped with the closed loop recess in the bed die, the mandrel is located in the closed loop recess, the shape of closed loop recess with the appearance of mandrel is the same.
And a heating net is laid on the inner surface of the closed-loop groove and provided with a temperature control system. The heating net is externally connected with a power supply and a temperature control system, and the temperature control system can control the temperature of the heating net.
According to the utility model discloses a combined material forming die based on gasbag, wherein, the gassing device include gassing pump, controller and gassing pipe, the gassing pump with the gassing pipe is linked together; and one end of the core mold is provided with an inflation and deflation port connected with the inflation and deflation pipe, a control valve is arranged in the inflation and deflation port, and the controller is used for controlling inflation and deflation of the inflation and deflation pump and opening and closing of the control valve.
According to the utility model discloses a embodiment's combined material forming die based on gasbag, wherein, the mandrel include the inflation and deflation port and with the gasbag that the inflation and deflation port is linked together, the gasbag is made by silicon rubber materials.
According to the utility model discloses a embodiment's combined material forming die based on gasbag, wherein, the mandrel still is equipped with heating element and temperature sensor, heating element and temperature sensor's inductive probe all sets up in the gasbag.
According to the utility model discloses a embodiment's combined material forming die based on gasbag, wherein, the charge and discharge port is the metal interface, heating element with temperature sensor all with charge and discharge port fixed connection, be equipped with on the outer wall of bed die temperature sensor's display screen, heating element with temperature sensor all is connected with the outside power of combined material forming die body based on gasbag.
According to the utility model discloses a embodiment's combined material forming die based on gasbag, it is further, heating element is the electrical heating stick, the electrical heating stick is connected with control the temperature controller of electrical heating stick temperature.
According to the utility model discloses a combined material forming die based on gasbag, wherein, the bed die is made by stainless steel material machine with addition.
According to the utility model discloses a embodiment's combined material forming die based on gasbag, wherein, combined material forming die based on gasbag still includes two drivers, the bed die divide into bed die and lower bed die, one the driver with go up the bed die and connect, one the driver is connected with lower bed die.
According to the utility model discloses a specific embodiment's the combined material forming die based on gasbag is to combined material's forming method, the method includes following step:
(1) respectively laying a release agent on the outer surface of a core mould and the inner surface of a female mould;
(2) laying a pre-prepared composite material on the inner surface of the female die;
(3) the core mould is arranged in the female mould, the core mould is ensured to correspond to the inner surface of the female mould, and the position of the core mould is fixed;
(4) setting temperature and pressure, inflating the core mold until the preset temperature and pressure are reached, stopping inflating, and standing until the product is cured and molded;
(5) deflating the core mold, and taking out the core mold; and taking out the composite material molded product.
The utility model has the advantages that: the composite material forming die based on the air bag of the utility model heats the core die and inflates to expand, so that pressure is generated between the core die and the female die to compact the composite material, the cloth is uniform, and the composite material is fixed and formed;
the pressure sensor can monitor the pressure born by the inner surface of the female die in real time and can be matched with the displacement sensor to determine the optimal pressure and inflation quantity; release agents are laid on the outer surface of the core mold and the inner surface of the female mold, so that the product is easy to release; the female die is divided into an upper female die and a lower female die, so that equipment can be mounted more conveniently;
the composite material forming die and the forming method based on the air bag have the characteristics that the internal structure of a product cannot be damaged, and a core die is easy to take out.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 shows a schematic structural view of an airbag-based composite material molding die according to an embodiment of the present invention;
fig. 2 shows a schematic structural view of a lower cavity block of an airbag-based composite material molding tool according to an embodiment of the present invention.
Reference numerals
1, core molding; 11-air discharge port; 12-air bag; 2, forming a female die; 21-upper female die; 22-lower female die; 3-a gas charging and discharging device; 31-air inflation and deflation pump; 32-a controller; 33-inflation and deflation pipe; 4-pressure sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
The utility model provides a combined material forming die based on gasbag, as shown in figure 1, combined material forming die based on gasbag includes combined material forming die body based on gasbag, combined material forming die body based on gasbag includes inflatable expanded mandrel 1, bed die 2, is used for heating the heating device of mandrel 1 and is used for giving core 1 aerifys or gassing inflation device 3 of gassing, bed die 2 cover is established in the periphery of mandrel 1, and mandrel 1 still keeps in bed die 2 after aerifing the inflation; and a pressure sensor 4 for detecting the inner surface pressure of the female die 2 is arranged on the inner wall of the female die 2, and the air charging and discharging device 3 is positioned at one end of the core die 1.
A closed-loop groove is formed in the female die 2, the core die 1 is arranged in the closed-loop groove, and the shape of the closed-loop groove is the same as that of the core die 1. And a heating net is laid on the inner surface of the closed-loop groove and provided with a temperature control system. The heating net is externally connected with a power supply and a temperature control system, and the temperature of the heating net can be controlled.
Specifically, the inflation and deflation device 3 comprises an inflation and deflation pump 31, a controller 32 and an inflation and deflation pipe 33, wherein the inflation and deflation pump 31 is communicated with the inflation and deflation pipe 33; one end of the core mold 1 is provided with an inflation and deflation port 11 connected with the inflation and deflation pipe 33, a control valve is arranged in the inflation and deflation port, and the controller 32 is used for controlling inflation and deflation of the inflation and deflation pump 31 and opening and closing of the control valve.
The core mold 1 comprises an inflation and deflation port 11 and an air bag 12 communicated with the inflation and deflation port, wherein the air bag is made of a silicon rubber material. The air bag is preferably made of silicone rubber materials which have high thermal stability, do not deteriorate or soften under the action of high temperature and high pressure, are stable in size after repeated use and are resistant to various epoxy resins, diluents thereof and curing agents.
The heating device comprises a heating element, the heating element and a temperature sensor are further arranged on the core mold 1, and induction probes of the heating element and the temperature sensor are arranged in the air bag.
Specifically, the charging and discharging port is a metal interface, the heating element and the temperature sensor are both fixedly connected with the charging and discharging port, a display screen 8 of the temperature sensor can be arranged on the outer wall of the female die 2, and the heating element and the temperature sensor are both connected with a power supply outside the composite material forming die body based on the air bag. One end of the heating element is fixed at the air charging and discharging port and is connected with an external power supply, and the other end of the heating element extends into the air bag to heat the air bag. The temperature sensor is fixed at the air charging and discharging port, and the sensing probe of the temperature sensor extends into the air bag to detect the temperature of the air in the air bag.
Furthermore, the heating element is an electric heating rod, and the electric heating rod is connected with a temperature controller for controlling the temperature of the electric heating rod.
Wherein, the female die 2 is made by a stainless steel material machine.
The air bag-based composite material forming die further comprises two drivers, the female die 2 is divided into an upper female die 21 and a lower female die 22, one driver is connected with the upper female die, and the other driver is connected with the lower female die. The driver drives the upper female die and the lower female die to be connected and fixed in a seamless mode, and the female die 2 can be conveniently put in and taken out. The shape of the core mold 1 is determined as necessary, and the inner shape of the cavity block 2 is completely the same as that of the core mold 1, and the outer shape of the core mold 1 can be reduced in proportion to the inner shape of the cavity block 2 in accordance with the thickness of the preform.
The method for molding the composite material by the composite material molding die based on the air bag comprises the following steps:
(1) firstly, respectively laying a release agent on the outer surface of a core mould 1 and the inner surface of a female mould 2;
(2) laying the pre-prepared composite material on the inner surface of the female die 2;
(3) the core mould 1 is arranged in the female mould 2, the position of the core mould 1 is fixed by ensuring that the core mould 1 corresponds to the inner surface of the female mould 2;
(4) setting temperature and pressure, starting a control valve, inflating the core mold 1 until the preset temperature and pressure are reached, stopping inflation, and standing until a product is cured and molded;
(5) deflating the core mold 1, and taking out the core mold 1; and taking out the composite material molded product.
Example 1
This embodiment lies in explaining and adopts the utility model discloses a more optimized forming method of combined material forming die based on gasbag, forming method includes following step:
(1) cleaning equipment and assembling equipment are firstly carried out, wherein a core mold 1 is arranged in a female mold 2, the core mold 1 is ensured to correspond to the inner surface of the female mold 2, and the position of the core mold 1 is fixed; a power supply connected to the charge/discharge pump 31 and the controller 32 to pressurize the inside of the core mold 1; in the preprocessing debugging stage, a displacement sensor is arranged between a core mold 1 and a female mold 2, a pressure-deformation relation curve graph is determined by observing the reading of a pressure sensor 4 in the core mold 1 and the value of the displacement sensor between the core mold 1 and the female mold 2, the deformation amount and the compaction degree of the core mold 1 can be monitored by monitoring the internal pressure of an air bag in later processing, and the displacement sensor is taken out;
(2) then, a release agent is laid on the outer surface of the core mould 1 and the inner surface of the female mould 2; laying a prefabricated composite material (or a composite material prepreg) between a core mould 1 and a female mould 2; a small amount of air is filled to ensure that the shape of the core mold 1 is fitted with the shape of the mold, and the equipment is fixed;
(3) a power supply connected with the heating element, the temperature sensor, the heating net (or heating without the heating net) and the temperature control system; continuously inflating the core mould 1 according to the temperature and pressure required by the curing and forming of the composite material, and heating the core mould 1; stopping inflating until the preset temperature and pressure are reached, ensuring that the temperature and pressure in the core mold 1 are kept as required, and standing until the product is cured and molded; when the air bag is inflated and expanded, because the volume expansion of the core die 1 is limited by the female die 2, pressure is generated in the die cavity so as to realize compaction and pressurization of the composite material in the curing process;
(5) after the product is cooled, solidified and molded, the core mold 1 is deflated, and the core mold 1 is taken out; and taking out the composite material molded product.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The composite material forming die based on the air bag comprises a composite material forming die body based on the air bag, and is characterized in that the composite material forming die body based on the air bag comprises a core die capable of inflating and expanding, a female die, a heating device for heating the core die and an inflation and deflation device for inflating or deflating the core die, wherein the female die is sleeved on the periphery of the core die, and the core die is still kept in the female die after being inflated and expanded; and a pressure sensor for detecting the pressure of the inner surface of the female die is arranged on the inner wall of the female die, and the air charging and discharging device is positioned at one end of the core die.
2. The bladder-based composite forming die of claim 1, wherein a closed loop groove is formed in the female die, the core die is disposed in the closed loop groove, and the closed loop groove has a shape that is the same as an outer shape of the core die.
3. The airbag-based composite material molding die as claimed in claim 1, wherein the inflation and deflation device comprises an inflation and deflation pump, a controller and an inflation and deflation pipe, the inflation and deflation pump is communicated with the inflation and deflation pipe; and one end of the core mold is provided with an inflation and deflation port connected with the inflation and deflation pipe, a control valve is arranged in the inflation and deflation port, and the controller is used for controlling inflation and deflation of the inflation and deflation pump and opening and closing of the control valve.
4. The composite material forming die based on the air bag as claimed in claim 3, wherein the core die comprises the air inflation and deflation port and the air bag communicated with the air inflation and deflation port, and the air bag is made of a silicon rubber material.
5. The bladder-based composite forming die of claim 4, wherein the core die is further provided with a heating element and a temperature sensor, and the inductive probes of the heating element and the temperature sensor are both disposed within the bladder.
6. The airbag-based composite material molding die of claim 5, wherein the charging and discharging port is a metal interface, the heating element and the temperature sensor are both fixedly connected with the charging and discharging port, a display screen of the temperature sensor is arranged on the outer wall of the female die, and both the heating element and the temperature sensor are connected with a power supply outside the airbag-based composite material molding die body.
7. The airbag-based composite molding die of claim 5, wherein the heating element is an electrical heating rod connected with a temperature controller for controlling the temperature of the electrical heating rod.
8. The bladder-based composite forming die of claim 1, wherein the female die is machined from stainless steel stock.
9. The bladder-based composite forming die of claim 1 further comprising two drivers, said cavity die being divided into an upper cavity die and a lower cavity die, one said driver being connected to said upper cavity die and one said driver being connected to said lower cavity die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921053445.0U CN210553130U (en) | 2019-07-08 | 2019-07-08 | Composite material forming die based on air bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921053445.0U CN210553130U (en) | 2019-07-08 | 2019-07-08 | Composite material forming die based on air bag |
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| Publication Number | Publication Date |
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| CN210553130U true CN210553130U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921053445.0U Active CN210553130U (en) | 2019-07-08 | 2019-07-08 | Composite material forming die based on air bag |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110228212A (en) * | 2019-07-08 | 2019-09-13 | 西安奥若特材料技术有限公司 | A kind of composite material shaping mould and its forming method based on air bag |
| CN113021718A (en) * | 2021-03-25 | 2021-06-25 | 浙江工业大学 | Die for manufacturing spherical air bag |
-
2019
- 2019-07-08 CN CN201921053445.0U patent/CN210553130U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110228212A (en) * | 2019-07-08 | 2019-09-13 | 西安奥若特材料技术有限公司 | A kind of composite material shaping mould and its forming method based on air bag |
| CN113021718A (en) * | 2021-03-25 | 2021-06-25 | 浙江工业大学 | Die for manufacturing spherical air bag |
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