CN111923330B - One-step forming processing method of light composite automobile inner door plate - Google Patents
One-step forming processing method of light composite automobile inner door plate Download PDFInfo
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- CN111923330B CN111923330B CN202011020312.0A CN202011020312A CN111923330B CN 111923330 B CN111923330 B CN 111923330B CN 202011020312 A CN202011020312 A CN 202011020312A CN 111923330 B CN111923330 B CN 111923330B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/67—Mould opening, closing or clamping devices hydraulic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/30—Moulds
- B29C51/38—Opening, closing or clamping means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a one-step forming processing method of a light composite automobile inner door plate, which is characterized in that an injection mold with a specific structure is arranged, oil cylinder ejection structures are arranged on a movable mold and a fixed mold in a plastic mold, an overflow valve is skillfully connected by utilizing different ejection forces of corresponding oil cylinders when the oil cylinders on two sides are in opposite vertex, and the dynamic clamping of an organic plate and the hot press forming are successfully realized in the injection mold closing process through the pressure rise change of the oil cylinders on the two sides in the cylinder body in the opposite vertex process and the overflow effect of the overflow valve, so that the one-step forming processing of the composite automobile inner door plate is realized, the processing efficiency is greatly improved, and the processing cost and the mold cost are reduced.
Description
Technical Field
The invention relates to a processing method of an automobile inner door plate, in particular to a one-step forming processing method of a light composite automobile inner door plate.
Background
The development of the automobile inner door panel goes through three stages of aluminum alloy die-casting door panels, metal plate punch forming door panels and the current plastic PP long-wave fiber injection molding door panels. With the market competition becoming more and more fierce, new materials are applied to the development of the automobile inner door panel, the development of the automobile inner door panel will enter the fourth stage, and the organic plate (organic plate) and the plastic PP long wave fiber composite forming door panel, that is to say, the organic plate is used to replace the plastic at the corresponding position of the inner door panel.
Organic board material, which we term carbon fiber material. The application of the innovative technology can achieve the following effects: 1, the automobile inner door panel can realize the maximum light weight; 2, reducing the cost and obtaining parts with complex structures and functions; and 3, based on the performance of the organic plate, the strength of the composite formed inner door plate is further improved.
According to the strength data of the organic plate provided by the golden technology of the domestic material manufacturer, the thickness of the organic plate used for the inner door plate of the automobile is 0.6mm, and the strength characteristic of the organic plate is equivalent to that of metal.
The weight of the automobile inner door panel formed by compounding the organic plates can be reduced by 37 percent at most compared with the door panel formed by injection molding of plastic PP long-wave fibers at the third stage through theoretical calculation, but the processing of the automobile inner door panel is realized by adopting two different materials, and a secondary molding method is usually adopted, namely, the carbon fiber plates are firstly subjected to compression molding, and then the carbon fiber plates subjected to compression molding are fixed in a cavity of an injection mold for secondary injection molding. The process has low efficiency and higher processing cost and die cost, and limits the development and application of the composite automobile inner door panel.
Disclosure of Invention
The invention aims to solve the technical problem of providing a one-step forming processing method of a light composite automobile inner door plate, which has relatively low processing cost and die cost and high processing efficiency.
The technical scheme adopted by the invention for solving the technical problems is as follows: the one-step forming processing method of the light composite automobile inner door plate is characterized in that at least one group of hydraulic clamping mechanisms are arranged between a fixed die and a movable die of an injection mold, each hydraulic clamping mechanism comprises a fixed die hydraulic system arranged on the fixed die, a fixed die hydraulic ejector rod driven by the fixed die hydraulic system, a movable die hydraulic system arranged on the movable die and a movable die hydraulic ejector rod driven by the movable die hydraulic system, and the specific processing steps are as follows:
1) starting the fixed die hydraulic system to enable the fixed die hydraulic ejector rod to stretch out of the surface of the die core of the fixed die and maintain the pressure, and starting the movable die hydraulic system to enable the movable die hydraulic ejector rod to stretch out of the surface of the die core of the movable die and maintain the pressure;
2) the injection molding machine manipulator clamps the heated organic plate to be molded and puts the organic plate between a fixed mold and a movable mold of the injection molding machine from the top side, and the surface of one side of the organic plate to be molded is attached to the end face of a hydraulic ejector rod of the fixed mold;
3) starting the injection molding machine, enabling the movable mold to close the mold towards the side of the fixed mold until the end surface of the hydraulic ejector rod of the movable mold is attached to the surface of the other side of the organic plate to be molded, clamping the organic plate to be molded between the hydraulic ejector rod of the fixed mold and the hydraulic ejector rod of the movable mold, and removing a manipulator of the injection molding machine;
4) continuously enabling the movable die to close the die towards the fixed die side, releasing the pressure of the fixed die hydraulic system, and enabling the fixed die hydraulic ejector rod to gradually move backwards under the jacking pressure of the movable die hydraulic ejector rod until the end surface of the fixed die hydraulic ejector rod is flush with the inner surface of the die core of the fixed die;
5) continuously closing the movable die towards the side of the fixed die, releasing the pressure of a hydraulic system of the movable die at the moment, and gradually moving the hydraulic ejector rod of the movable die backwards under the jacking pressure of the hydraulic ejector rod of the fixed die until the end surface of the hydraulic ejector rod of the movable die is flush with the inner surface of the die core of the movable die, so that the closing of the injection molding machine and the hot press molding of the organic plate to be molded are completed;
6) starting an injection molding system of the injection molding machine to inject plastic into the mold cavity to complete the composite molding of the automobile inner door panel;
7) and starting the injection molding machine to open the mold, thus obtaining the finished product of the light composite automobile inner door panel.
The fixed die hydraulic system comprises a fixed die oil cylinder arranged on the fixed die, a first overflow valve is connected in series with the other side of a first oil inlet of the fixed die oil cylinder, the movable die hydraulic system comprises a movable die oil cylinder arranged on the movable die, a second overflow valve is connected in series with the other side of a second oil inlet of the movable die oil cylinder, the conduction oil pressure value of the second overflow valve is greater than that of the first overflow valve, when the oil pressure in the fixed die oil cylinder is greater than the set oil pressure value, the first overflow valve is conducted, the fixed die hydraulic system is decompressed, and the fixed die hydraulic ejector rod moves backwards gradually under the jacking force of the movable die hydraulic ejector rod until the end surface of the fixed die hydraulic ejector rod is flush with the inner surface of a die core of the fixed die; when the oil pressure in the movable mold oil cylinder is larger than a set oil pressure value, the second overflow valve is switched on, the movable mold hydraulic system releases the pressure, and the movable mold hydraulic ejector rod gradually moves backwards under the jacking pressure of the fixed mold hydraulic ejector rod until the end surface of the movable mold hydraulic ejector rod is flush with the inner surface of the mold core of the movable mold.
The fixed cover half ejector pin fixed plate that is provided with on the piston rod of cover half hydro-cylinder, cover half hydraulic pressure ejector pin pass the mould benevolence of cover half with cover half ejector pin fixed plate connect, the cover half on be provided with the flexible chamber of cover half ejector pin, work as cover half ejector pin fixed plate reachd the flexible chamber of cover half ejector pin bottom during, the cover half hydraulic pressure ejector pin the terminal surface with the internal surface parallel and level of the mould benevolence of cover half.
The fixed cover half ejector pin backing plate that is provided with on the piston rod of cover half hydro-cylinder, the piston rod pass through the screw with cover half ejector pin fixed plate with cover half ejector pin backing plate connect, cover half hydraulic pressure ejector pin be provided with first connecting convex block, first connecting convex block compress tightly and fix cover half ejector pin backing plate with cover half ejector pin fixed plate between, work as cover half ejector pin backing plate arrive the bottom in the flexible chamber of cover half ejector pin during, cover half hydraulic pressure ejector pin the terminal surface with the internal surface parallel and level of the mould benevolence of cover half.
The fixed die is provided with a fixed die oil cylinder fixing plate, and the fixed die oil cylinder is fixed on the fixed die oil cylinder fixing plate through fixed die oil cylinder fixing screws.
The movable mould hydraulic ejector rod fixing device is characterized in that a movable mould ejector rod fixing plate is fixedly arranged on a piston rod of the movable mould oil cylinder, the movable mould hydraulic ejector rod penetrates through a mould core of the movable mould to be connected with the movable mould ejector rod fixing plate, a movable mould ejector rod telescopic cavity is arranged on the movable mould, and when the movable mould ejector rod fixing plate reaches the bottom of the movable mould ejector rod telescopic cavity, the end surface of the movable mould hydraulic ejector rod is flush with the inner surface of the mould core of the movable mould.
The movable mould ejector pin backing plate is fixedly arranged on a piston rod of the movable mould oil cylinder, the piston rod is connected with the movable mould ejector pin fixing plate and the movable mould ejector pin backing plate through screws, the movable mould hydraulic ejector pin is provided with a second connecting lug, the second connecting lug is pressed and fixed between the movable mould ejector pin backing plate and the movable mould ejector pin fixing plate, and when the movable mould ejector pin backing plate reaches the bottom of the movable mould ejector pin telescopic cavity, the end surface of the movable mould hydraulic ejector pin is flush with the inner surface of a mould core of the movable mould.
The movable mould is provided with a movable mould oil cylinder fixing plate, and the movable mould oil cylinder is fixed on the movable mould oil cylinder fixing plate through a movable mould oil cylinder fixing screw
Compared with the prior art, the invention has the advantages that through the arrangement of the injection mold with a specific structure, the movable mold and the fixed mold in the plastic mold are provided with the oil cylinder ejection structures, the overflow valve is skillfully connected by utilizing the different ejection forces of the oil cylinders on the two sides when the oil cylinders are butted, and the dynamic clamping and the hot press forming of the organic plate are successfully realized in the injection mold matching process through the pressure rise change in the oil cylinders on the two sides and the overflow effect of the overflow valve in the oil cylinder during the butting process, so that the one-step forming processing of the composite automobile inner door plate is realized, the processing efficiency is greatly improved, and the processing cost and the mold cost are reduced.
Drawings
FIG. 1 is a schematic structural view of an injection mold of the present invention;
FIG. 2 is a schematic structural diagram of a hydraulic clamping mechanism in the injection mold of the present invention;
FIG. 3 is a schematic view showing the state that the organic plate 4 to be molded, which is heated to 200 degrees when the mold is not closed, is just placed in the mold by the manipulator 3 of the injection molding machine;
FIG. 4 is a schematic structural diagram of a fixed die hydraulic system and a movable die hydraulic system;
FIG. 5 is a schematic diagram of a state that a movable mold is closed towards the side of a fixed mold under the action of an injection molding machine, an organic plate 4 to be molded is clamped by a fixed mold hydraulic ejector rod and a movable mold hydraulic ejector rod, and a manipulator 3 of the injection molding machine is drawn away;
fig. 6 is a schematic view showing a state that the movable mold continues to close the mold towards the fixed mold side under the action of the injection molding machine, and the organic plate 4 to be molded is pushed to the inner surface of the mold core of the fixed mold, and since the organic plate 4 to be molded is in a heated state, it can be seen that the organic plate 4 to be molded is attached to the mold core of the fixed mold along the contour shape of the mold core of the fixed mold;
fig. 7 is a schematic view of a state in which the movable mold continues to close the mold toward the fixed mold under the action of the injection molding machine, and the movable mold and the fixed mold close in place, and the organic plate 4 to be molded is successfully molded between the mold core of the fixed mold and the mold core of the movable mold along the complex curved surface shape between the mold core of the fixed mold and the mold core of the movable mold;
FIG. 8 is a schematic view showing a state where the movable mold and the fixed mold of the mold are both closed in place.
In the figure: 1-a fixed die, 11-a fixed die hydraulic system, 111-a fixed die oil cylinder, 112-a first oil inlet, 113-a first overflow valve, 12-a fixed die hydraulic ejector rod, 121-a first connecting bump, 13-a fixed die oil cylinder fixing plate, 14-a fixed die oil cylinder fixing screw, 15-a fixed die ejector rod base plate, 16-a fixed die ejector rod fixing plate, and 17-a fixed die ejector rod telescopic cavity; 2-a movable mould, 21-a movable mould hydraulic system, 211-a movable mould oil cylinder, 212-a second oil inlet, 213-a second overflow valve, 22-a movable mould hydraulic ejector rod, 221-a second connecting lug, 23-a movable mould oil cylinder fixing plate, 24-a movable mould oil cylinder fixing screw, 25-a movable mould ejector rod base plate, 26-a movable mould ejector rod fixing plate and 27-a movable mould ejector rod telescopic cavity; 3-mechanical arm of injection molding machine, 4-organic plate to be molded.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
Example (b): as shown in figures 1-8, a one-step molding processing method of a light composite automobile inner door plate is characterized in that a group of hydraulic clamping mechanisms are arranged between a fixed die 1 and a movable die 2 of an injection mold, and each hydraulic clamping mechanism comprises a fixed die hydraulic system 11 and a fixed die hydraulic ejector rod 12 which are arranged on the fixed die 1, and a movable die hydraulic system 21 and a movable die hydraulic ejector rod 22 which are arranged on a movable die plate 2.
The fixed die hydraulic system 11 comprises a fixed die oil cylinder 111 arranged on a fixed die 1, the fixed die 1 is provided with a fixed die oil cylinder fixing plate 13, the fixed die oil cylinder 111 is fixed on the fixed die oil cylinder fixing plate 13 through a fixed die oil cylinder fixing screw 14, a piston rod of the fixed die oil cylinder 111 is connected with a fixed die ejector rod backing plate 15 and a fixed die ejector rod fixing plate 16 through screws, the fixed die 1 is provided with a fixed die ejector rod telescopic cavity 17, the fixed die ejector rod backing plate 15 and the fixed die ejector rod fixing plate 16 are arranged in the fixed die ejector rod telescopic cavity 17, the fixed die hydraulic ejector rod 12 is provided with a first connecting lug 121, the fixed die hydraulic ejector rod 12 passes through a die core of the fixed die 1, and, when the fixed die ejector rod backing plate 15 reaches the bottom of the fixed die ejector rod telescopic cavity 17, the end surface of the fixed die hydraulic ejector rod 12 is flush with the inner surface of the die core of the fixed die 1.
The movable die hydraulic system 21 comprises a movable die oil cylinder 211 arranged on a movable die 2, the movable die 2 is provided with a movable die oil cylinder fixing plate 23, the movable die oil cylinder 211 is fixed on the movable die oil cylinder fixing plate 23 through a movable die oil cylinder fixing screw 24, a piston rod of the movable die oil cylinder 211 is connected with a movable die ejector rod backing plate 25 and a movable die ejector rod fixing plate 26 through screws, the movable die 2 is provided with a movable die ejector rod telescopic cavity 27, the movable die ejector rod backing plate 25 and the movable die ejector rod fixing plate 26 are arranged in the movable die ejector rod telescopic cavity 27, the movable die hydraulic ejector rod 22 is provided with a second connecting lug 221, the movable die hydraulic ejector rod 22 penetrates through a die core of the movable die 2, when the movable die ejector pin backing plate 25 reaches the bottom of the movable die ejector pin expansion cavity 27, the end surface of the movable die hydraulic ejector pin 22 is flush with the inner surface of the die core of the movable die 2.
The other side of the first oil inlet 112 of the fixed mold oil cylinder 111 is connected with a first overflow valve 113 in series, the other side of the second oil inlet 212 of the movable mold oil cylinder 211 is connected with a second overflow valve 213 in series, the conduction oil pressure value of the second overflow valve 213 is larger than the conduction oil pressure value of the first overflow valve 113, when the oil pressure in the fixed mold oil cylinder 111 is larger than the set oil pressure value, the first overflow valve 113 is conducted, the fixed mold hydraulic system 11 is depressurized, and when the oil pressure in the movable mold oil cylinder 211 is larger than the set oil pressure value, the second overflow valve 213 is conducted, and the movable mold hydraulic system 21 is depressurized.
The specific processing steps are as follows:
1) starting the fixed die hydraulic system 11 to enable the fixed die hydraulic ejector rod 12 to extend out of the surface of the die core of the fixed die 1 for pressure maintaining, and starting the movable die hydraulic system 21 to enable the movable die hydraulic ejector rod 22 to extend out of the surface of the die core of the movable die 2 for pressure maintaining;
2) the organic plate 4 to be molded, which is clamped by the mechanical arm 3 of the injection molding machine and heated to 200 ℃, is placed between the fixed die 1 and the movable die 2 of the injection molding machine from the top side, and the surface of one side of the organic plate 4 to be molded is attached to the end surface of the hydraulic ejector rod 12 of the fixed die, and the state at the moment is shown in figure 3;
3) starting the injection molding machine, enabling the movable mold 2 to close the mold towards the fixed mold 1 until the end surface of the movable mold hydraulic ejector rod 22 is attached to the surface of the other side of the organic plate 4 to be molded, clamping the organic plate 4 to be molded between the fixed mold hydraulic ejector rod 12 and the movable mold hydraulic ejector rod 22, and removing the mechanical arm 3 of the injection molding machine, wherein the state at this time is shown in FIG. 5;
4) continuing to enable the movable die 2 to close the die towards the fixed die 1, wherein the pressure of the fixed die hydraulic system 11 is relieved, the fixed die hydraulic ejector rod 12 gradually moves backwards under the jacking pressure of the movable die hydraulic ejector rod 22 until the end surface of the fixed die hydraulic ejector rod 12 is flush with the inner surface of the die core of the fixed die 1, and the state is shown in fig. 6;
5) continuing to match the movable die 2 towards the fixed die 1 side, releasing the pressure of the movable die hydraulic system 21, gradually moving the movable die hydraulic ejector rod 22 backwards under the jacking pressure of the fixed die hydraulic ejector rod 12 until the end surface of the movable die hydraulic ejector rod 22 is flush with the inner surface of the die core of the movable die 2, completing the die matching of the injection molding machine and the hot press molding of the organic plate 4 to be molded, wherein the state at this time is shown in fig. 7;
6) starting an injection molding system of the injection molding machine to inject plastic into the mold cavity to complete the composite molding of the automobile inner door panel;
7) and starting the injection molding machine to open the mold, thus obtaining the finished product of the light composite automobile inner door panel.
Claims (3)
1. A one-time forming processing method of a light composite automobile inner door plate is characterized in that at least one group of hydraulic clamping mechanisms are arranged between a fixed die and a movable die of an injection die, each hydraulic clamping mechanism comprises a fixed die hydraulic system arranged on the fixed die, a fixed die hydraulic ejector rod driven by the fixed die hydraulic system, a movable die hydraulic system arranged on the movable die and a movable die hydraulic ejector rod driven by the movable die hydraulic system, each fixed die hydraulic system comprises a fixed die oil cylinder arranged on the fixed die, the other side of a first oil inlet of each fixed die oil cylinder is connected with a first overflow valve in series, each movable die hydraulic system comprises a movable die oil cylinder arranged on the movable die, the other side of a second oil inlet of each movable die oil cylinder is connected with a second overflow valve in series, and the conduction oil pressure value of the second overflow valve is greater than the conduction oil pressure value of the first overflow valve, when the oil pressure in the fixed die oil cylinder is greater than a set oil pressure value, the first overflow valve is conducted, the fixed die hydraulic system releases pressure, and the fixed die ejector rod gradually moves backwards under the jacking pressure of the movable die ejector rod until the end surface of the fixed die ejector rod is flush with the inner surface of a die core of the fixed die; when the oil pressure in the movable mould oil cylinder is greater than the set oil pressure value, the second overflow valve is switched on, the movable mould hydraulic system is decompressed, the movable mould ejector rod moves backwards under the jacking pressure of the fixed mould ejector rod step by step until the end surface of the movable mould ejector rod is flush with the inner surface of the mould core of the movable mould, the piston rod of the fixed mould oil cylinder is fixedly provided with a fixed mould ejector rod fixing plate, the fixed mould ejector rod passes through the fixed mould core and is connected with the fixed mould ejector rod fixing plate, the fixed mould is provided with a fixed mould ejector rod telescopic cavity, when the fixed mould ejector rod fixing plate reaches the bottom of the fixed mould ejector rod telescopic cavity, the end surface of the fixed mould ejector rod is flush with the inner surface of the mould core of the fixed mould, the piston rod of the fixed mould oil cylinder is fixedly provided with a fixed mould ejector rod base plate, the piston rod is, the fixed die ejector rod is provided with a first connecting lug, the first connecting lug is pressed and fixed between the fixed die ejector rod base plate and the fixed die ejector rod fixing plate, when the fixed die ejector rod base plate reaches the bottom of the fixed die ejector rod telescopic cavity, the end surface of the fixed die ejector rod is flush with the inner surface of the die core of the fixed die, the piston rod of the movable die oil cylinder is fixedly provided with a movable die ejector rod fixing plate, the movable die ejector rod penetrates through the movable die core and is connected with the movable die ejector rod fixing plate, the movable die is provided with a movable die ejector rod telescopic cavity, when the movable die ejector rod fixing plate reaches the bottom of the movable die ejector rod telescopic cavity, the end surface of the movable die ejector rod is flush with the inner surface of the die core of the movable die, and the piston rod of the movable die oil cylinder is fixedly provided with a movable die, the piston rod pass through the screw with movable mould ejector pin fixed plate with movable mould ejector pin backing plate connect, the movable mould ejector pin be provided with the second and connect the lug, the second connect the lug compress tightly and fix movable mould ejector pin backing plate with movable mould ejector pin fixed plate between, work as movable mould ejector pin backing plate arrive the bottom in the flexible chamber of movable mould ejector pin, the terminal surface of movable mould ejector pin with the internal surface parallel and level of the mould benevolence of movable mould, concrete processing steps are as follows:
1) starting the fixed die hydraulic system to enable the fixed die hydraulic ejector rod to stretch out of the surface of the die core of the fixed die and maintain the pressure, and starting the movable die hydraulic system to enable the movable die hydraulic ejector rod to stretch out of the surface of the die core of the movable die and maintain the pressure;
2) the injection molding machine manipulator clamps the heated organic plate to be molded and puts the organic plate between a fixed mold and a movable mold of the injection molding machine from the top side, and the surface of one side of the organic plate to be molded is attached to the end surface of a fixed mold ejector rod;
3) starting the injection molding machine, enabling the movable mold to close the mold towards the side of the fixed mold until the end surface of the ejector rod of the movable mold is attached to the surface of the other side of the organic plate to be molded, clamping the organic plate to be molded between the ejector rod of the fixed mold and the ejector rod of the movable mold, and removing a manipulator of the injection molding machine;
4) continuing to enable the movable die to close the die towards the fixed die side, releasing the pressure of the fixed die hydraulic system, and enabling the fixed die ejector rod to gradually move backwards under the jacking pressure of the movable die ejector rod until the end surface of the fixed die ejector rod is flush with the inner surface of a die core of the fixed die;
5) continuously enabling the movable mould to close the mould towards the side of the fixed mould, releasing the pressure of a hydraulic system of the movable mould, gradually moving the ejector rod of the movable mould backwards under the jacking pressure of the ejector rod of the fixed mould until the end surface of the ejector rod of the movable mould is flush with the inner surface of the mould core of the movable mould, and completing the closing of the injection molding machine and the hot press molding of the organic plate to be molded;
6) starting an injection molding system of the injection molding machine to inject plastic into the mold cavity to complete the composite molding of the automobile inner door panel;
7) and starting the injection molding machine to open the mold, thus obtaining the finished product of the light composite automobile inner door panel.
2. The one-step forming processing method of the light composite automobile inner door plate as claimed in claim 1, wherein the fixed die is provided with a fixed die oil cylinder fixing plate, and the fixed die oil cylinder is fixed on the fixed die oil cylinder fixing plate through fixed die oil cylinder fixing screws.
3. The one-shot forming method for manufacturing a lightweight composite automotive inner door panel according to claim 1, wherein said movable mold is provided with a movable mold cylinder fixing plate, and said movable mold cylinder is fixed to said movable mold cylinder fixing plate by means of movable mold cylinder fixing screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011020312.0A CN111923330B (en) | 2020-09-25 | 2020-09-25 | One-step forming processing method of light composite automobile inner door plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011020312.0A CN111923330B (en) | 2020-09-25 | 2020-09-25 | One-step forming processing method of light composite automobile inner door plate |
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| CN111923330A CN111923330A (en) | 2020-11-13 |
| CN111923330B true CN111923330B (en) | 2021-01-01 |
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| CN115056508B (en) * | 2022-08-11 | 2022-11-11 | 宁波天龙电子股份有限公司 | Thermoplastic forming die based on composite automobile door plate |
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| DE102013213711A1 (en) * | 2013-07-12 | 2015-01-15 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt | Method for producing a structural component for motor vehicles from an organic sheet |
| ES2727473T3 (en) * | 2014-12-22 | 2019-10-16 | Magna Steyr Fahrzeugtechnik Ag & Co Kg | Procedure for manufacturing vehicle components / structural components based on a plastic material and vehicle component or structural component manufactured in that way |
| EP3216578A1 (en) * | 2016-03-07 | 2017-09-13 | Georg Kaufmann Formenbau AG | Device and method for injection molding of composite materials comprising at least one laminate |
| CN109624198A (en) * | 2018-12-10 | 2019-04-16 | 重庆大学 | A kind of fiber cloth composite material forming method |
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