Injection molding mold for automobile front door decorative plate

Abstract

The embodiment of the invention provides an injection molding mold for an automobile front door decorative plate, and relates to the technical field of injection molds. The injection molding mold for the automobile front door decorative plate comprises a vertical frame, a bottom frame is fixedly connected to the bottom of the front face of the vertical frame, a bottom mold is fixedly connected to the top of the bottom frame, a top mold is arranged above the bottom mold, and mold cavities are formed in the opposite sides of the bottom mold and the top mold; charging baskets are fixedly connected to the tops of the two sides of the vertical frame, an air bellow frame is fixedly connected to the back face of the vertical frame, and a closing assembly assembled and matched with the bottom mold and the top mold is arranged at the bottom of an inner cavity of the vertical frame; the two sides, close to the material barrel, of the air bellow frame are each provided with a supply assembly and a cooling assembly which are used in cooperation with pressurization feeding and cooling forming of the bottom die and the top die. On the basis of the condition of automatic assembly closing, a mode of combining pressurized feeding and rapid cooling is adopted, and the efficient and high-quality injection molding effect on the automobile front door decorative plate cannot be achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile parts injection molds, and in particular relates to an injection molding mold for an automobile front door decorative panel. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a wide variety of patterns and colors, shapes from simple to complex, sizes from large to small, and precise product dimensions. The product is easy to update and can be made into parts with complex shapes. Injection molding is suitable for mass production and molding processing fields such as products with complex shapes.

[0003] In the prior art (the patent application with announcement number CN220763385U and patent name of the injection molding mold for the bright strip of the lower decorative panel of the front door of the automobile), the problem that the mold is easy to tilt during use, causing the thickness of the processed bright strip of the lower decorative panel of the front door of the automobile to change, thereby generating low-quality products and reducing profits, is solved. In the process of implementing this technical solution, it is found that there are at least the following problems in the prior art.

[0004] During the injection molding of the front door decorative panels of automobiles, it is necessary to use injection molds to process them quickly. However, the injection molds currently used basically only have the injection molding function and are relatively simple. Due to the slow material flow rate, it is easy to cause uneven material distribution, insufficient material distribution, and gaps that have not reached the position. At the same time, it also does not have the function of rapid cooling and molding, which increases the defective rate of the front door decorative panels of automobiles. Summary of the invention

[0005] The present application aims to at least solve one of the technical problems in the prior art that the automotive front door decorative panel cannot be efficiently and high-quality injection molded by combining pressurized feeding and rapid cooling driven by unified wind pressure under the condition of automatic assembly and closure. To this end, the present application proposes an injection molding mold for an automotive front door decorative panel.

[0006] To achieve the above purpose, the specific technical solutions of the present invention are as follows: An injection molding mold for a front door decorative panel of an automobile comprises a vertical frame, the bottom of the front of the vertical frame is fixedly connected to a bottom frame, and the top of the bottom frame is fixedly connected to a bottom mold, a top mold is arranged above the bottom mold, and a mold cavity is opened on the side where the bottom mold and the top mold face each other; The tops of both sides of the vertical frame are fixedly connected with material barrels, and the back of the vertical frame is fixedly connected with a bellows frame, and the bottom of the inner cavity of the vertical frame is provided with a closing component assembled with the bottom mold and the top mold, and the closing component includes a double-headed motor embedded in the top of the inner cavity of the vertical frame, and an electric push rod embedded in an output shaft of the double-headed motor; The bellows frame is provided with a supply assembly and a cooling assembly on both sides close to the barrel for use with the bottom mold and the top mold for pressurized feeding and cooling molding, and the supply assembly includes a main bevel gear fixed to the side of the double-headed motor output shaft close to the electric push rod, a secondary bevel gear is meshed on one side of the main bevel gear, and the cooling assembly includes an upper cover and a lower cover respectively connected to both sides of the top mold and the bottom mold.

[0007] Preferably: a clamping head is fixedly connected to the piston rod of the electric push rod, and a clamping seat is arranged below the clamping head, a screw rod that rotates with the vertical frame is fixedly connected to the bottom of the clamping seat, and a screw rod sleeve is threadedly connected to the screw rod, and a connecting seat that is fixedly matched with the top mold is fixedly connected to the front of the screw rod sleeve.

[0008] Preferably: the back side of the secondary bevel gear is fixedly connected to an impeller used in conjunction with a bellows frame through a fan shaft, and both sides of the bellows frame are connected to a boosting pipe with a boosting valve, the front end of the boosting pipe is connected to a three-way valve connected to a material barrel, and the front end of the three-way valve is connected to a feed pipe, and the bottom end of the feed pipe is connected to a vertical telescopic pipe connected to a mold cavity.

[0009] Preferably: a small refrigerator is embedded in the outer side of the lower cover, and a three-way head is connected to the boost pipe, the three-way head and the outer side of the upper cover are connected to a rotating end, and the inner cavity of the rotating end is rotatably connected to the connecting end and maintains an interconnected state with each other, and the inner end of the connecting end is connected to an oblique telescopic tube.

[0010] Preferably, the front side of the vertical frame close to the bottom mold and the top mold is provided with a vertical groove which is slidably matched with the connecting seat.

[0011] Preferably, a sandwich cavity communicating with the upper cover and the lower cover is formed on one side of the bottom mold and the top mold close to the mold cavity.

[0012] Preferably: both sides of the inner cavity of the base frame are fixedly connected with a demoulding cylinder, and the piston rod of the demoulding cylinder is fixedly connected with a push rod used in conjunction with the bottom mold.

[0013] Preferably, the bottom mold is connected to drain pipes with plugging heads on all sides near the mold cavity, and the drain pipes are not interconnected with the interlayer cavity.

[0014] Preferably, a material level sensor is embedded at the bottom of the back of the barrel, and a feed port and a discharge port with a sealing cover are respectively provided on the outside of the barrel.

[0015] Preferably, the back circumference of the bellows frame is provided with air filter holes, and the four sides of the bottom of the top mold are fixedly connected with positioning pins, and the four sides of the top of the bottom mold are provided with positioning holes.

[0016] The injection molding mold for the automobile front door decorative panel of the present invention has the following advantages: 1. The injection molding mold for the front door decorative panel of an automobile is firstly driven by a double-head motor to provide a unified driving source, and the electric push rod is used to adjust the stroke of the clamping part of the clamping head and the clamping seat, and then the screw sleeve on the screw drives the connecting seat to be raised and lowered, and then the connecting seat drives the top mold to separate upward and seal downward on the bottom mold, without manual movement, saving time and labor, and facilitating the demoulding work of the front door decorative panel of the automobile.

[0017] 2. The injection molding mold for the front door decorative panel of an automobile, then, the main bevel gear and the auxiliary bevel gear drive the impeller to rotate in the bellows frame and generate wind pressure, and serve as a unified wind pressure driving source. The wind pressure generated in the bellows frame passes through two booster pipes to reach two groups of three-way valves. At the same time, after the materials in the two groups of barrels are fed into the two groups of three-way valves, under the action of wind pressure, the two-way materials are forced to quickly pass through the vertical telescopic pipes on the two feeding pipes to be pressurized and fed into the mold cavities of the top mold and the bottom mold in a sealed state, so as to avoid hysteresis during the flow of materials, improve the uniformity and comprehensiveness of the material distribution, improve the injection molding quality of the front door decorative panel of the automobile, and reduce its injection molding defective rate.

[0018] At the same time, the unified wind pressure driving source generated by the rotation of the impeller in the bellows frame is driven by two booster pipes through the rotating ends and connecting ends on the two sets of tee heads to the two inclined telescopic tubes. The wind pressure in the two inclined telescopic tubes then reaches the two sets of upper covers, and then the two sets of small refrigerators are turned on and the cold air is transported to the upper covers through the lower covers. Under the action of wind pressure, the two routes of cold air are forced to be quickly supplied to the interlayer cavity in the sealed top and bottom molds, reducing the loss rate of cold air, extending the duration of cold air, and quickly and long-term cooling and molding of the material in the mold cavity, further improving the injection molding efficiency of the automobile front door decorative panel, and providing a unified wind pressure drive by the rotation of a single impeller, so as to realize the uniform distribution of the material in the mold cavity in a linked and continuous manner, and quickly and comprehensively cool the evenly distributed material, without the need to purchase other equipment, thus reducing equipment investment costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a front view of an initial state of an injection molding mold structure for a front door trim panel of an automobile according to the present invention; Figure 2 It is a rear view of the working state of the injection molding mold structure for the automobile front door decorative plate of the present invention; Figure 3It is a partial rear cross-sectional view of the structure of an injection molding mold for a front door decorative panel of an automobile according to the present invention; Figure 4 It is a partial internal view of the structure of an injection molding mold for a front door trim panel of an automobile according to the present invention; Figure 5 It is a rear cross-sectional view of the vertical frame, bottom frame, bottom mold, top mold and closing assembly structure of the present invention; Figure 6 It is a side view of the bottom frame, bottom mold, top mold and closing assembly structure of the present invention; Figure 7 A side cross-sectional view of the vertical frame and closure assembly structure of the present invention; Figure 8 It is a side cross-sectional view of the initial state of the structure of the base frame, bottom mold, top mold, double-head motor, material barrel, bellows frame, supply assembly and cooling assembly of the present invention; Fig. 9 It is a side cross-sectional view of the working state of the bottom frame, bottom mold, top mold, double-head motor, material barrel, bellows frame, supply assembly and cooling assembly structure of the present invention; Fig.10 It is a side exploded view of the double-headed motor, supply assembly and cooling assembly structure of the present invention; Fig.11 It is a partial exploded view of the cooling assembly structure of the present invention; Fig.12 It is a partial cross-sectional exploded view of the lower cover, small refrigerator and bottom mold structure of the present invention; Fig.13 It is a rear view of the barrel, double-head motor and feeding assembly structure of the present invention; Fig.14 It is a front cross-sectional view of the barrel, double-head motor and feeding assembly structure of the present invention; Fig.15 It is a partial bottom view of the feeding assembly structure of the present invention.

[0021] Explanation of the markings in the figure: 1. Vertical frame; 2. Bottom frame; 3. Bottom mold; 4. Top mold; 5. Material barrel; 6. Bellows frame; 71. Double-head motor; 72. Electric push rod; 73. Clamp head; 74. Clamp seat; 75. Screw rod; 76. Screw rod sleeve; 77. Connecting seat; 81. Main bevel gear; 82. Auxiliary bevel gear; 83. Impeller; 84. Boosting pipe; 85. Three-way valve; 86. Feed pipe; 87. Vertical telescopic pipe; 91. Upper cover; 9 2. Lower cover; 93. Small refrigerator; 94. Three-way head; 95. Rotating end; 96. Connecting end; 97. Oblique telescopic tube; 101. Main circular gear; 102. Sub circular gear; 103. Rotating shaft; 104. Guide vane; 105. Turbine vane; 106. Stirring vane; 107. Conveying rack; 11. Vertical slot; 12. Interlayer cavity; 13. Demolding cylinder; 14. Ejector rod; 15. Drain pipe; 16. Material level sensor. DETAILED DESCRIPTION

[0022] The present invention is specifically described below in conjunction with the accompanying drawings and specific embodiments: like Figure 1-Figure 15 As shown, an injection molding mold for a front door decorative panel of an automobile of the present invention comprises a vertical frame 1, a bottom of the front side of the vertical frame 1 is fixedly connected to a bottom frame 2, and a top of the bottom frame 2 is fixedly connected to a bottom mold 3, a top mold 4 is arranged above the bottom mold 3, a mold cavity is opened on the side facing the bottom mold 3 and the top mold 4, both sides of the inner cavity of the bottom frame 2 are fixedly connected to a demoulding cylinder 13, and the piston rod of the demoulding cylinder 13 is fixedly connected to a push rod 14 used in conjunction with the bottom mold 3, so as to facilitate ejection and demoulding of the front door decorative panel of the automobile formed in the mold cavity, and the bottom mold 3 is connected to the surroundings of the mold cavity with a drain pipe 15 with a plugging head, and the drain pipe 15 is connected to the sandwich cavity 1. 2 are not intercommunication, which is convenient for discharging the excess material in the mold cavity of the bottom mold 3. A material level sensor 16 is embedded at the bottom of the back of the barrel 5, which is convenient for real-time detection of the material in the barrel 5 so as to add materials in time. The outer side of the barrel 5 is respectively provided with a feed port and a discharge port with a blocking cover, which is convenient for adding and discharging materials in the barrel 5. The back circumference of the bellows frame 6 is provided with air filter holes to filter and supplement the wind entering the bellows frame 6. The bottom of the top mold 4 is fixedly connected with positioning pins, and the top of the bottom mold 3 is provided with positioning holes to position and close the top mold 4 and the bottom mold 3 to avoid misalignment. The tops of both sides of the vertical frame 1 are fixedly connected with barrels 5, and the back of the vertical frame 1 is fixedly connected with bellows frames 6. The bottom of the inner cavity of the vertical frame 1 is provided with a closing component assembled with the bottom mold 3 and the top mold 4, and the closing component includes a double-headed motor 71 embedded in the top of the inner cavity of the vertical frame 1, and an electric push rod 72 embedded in an output shaft of the double-headed motor 71, which realizes the upward separation and downward sealing effect of the top mold 4 on the bottom mold 3, without manual movement, saving time and labor, and facilitating the demoulding work of the front door decorative panel of the automobile; the bellows frames 6 are provided with supply components and cooling components used in combination with the bottom mold 3 and the top mold 4 for pressurized feeding and cooling molding on both sides of the barrel 5, and the supply component includes a double-headed motor 7 fixed to the double-headed motor 7 The main bevel gear 81 of the output shaft is close to one side of the electric push rod 72, and one side of the main bevel gear 81 is meshed with a secondary bevel gear 82, which pressurizes and feeds the material into the mold cavity of the top mold 4 and the bottom mold 3 in a sealed state to avoid hysteresis during the material flow, improve the material distribution uniformity and comprehensiveness, improve the injection molding quality of the automobile front door decorative plate, and reduce its injection defective rate. The cooling component includes an upper cover 91 and a lower cover 92 respectively connected to the two sides of the top mold 4 and the bottom mold 3. Under the action of wind pressure, two cold airs are forced to be quickly supplied into the interlayer cavity 12 in the top mold 4 and the bottom mold 3 in the sealed state, so as to quickly cool and mold the material in the mold cavity, and further improve the injection molding efficiency of the automobile front door decorative plate.

[0023] like Figure 5-Figure 12The cam 77 is pressed against the top of the cylinder 74 to release from the engagement of the cam 76, which in turn moves the cam 77 in the cylinder 72 to engage the engage force of the cam 76. The cam 77 is pressed against the engage force of the cam 76, which in turn moves the cam 77 to engage the engage force of the cam 76.

[0024] The back of the secondary bevel gear 82 is fixedly connected to an impeller 83 used in conjunction with the bellows frame 6 through a fan shaft. The main bevel gear 81 and the secondary bevel gear 82 drive the impeller 83 to rotate in the bellows frame 6 and generate wind pressure, and both sides of the bellows frame 6 are connected to a booster pipe 84 with a booster valve, and the front end of the booster pipe 84 is connected to a three-way valve 85 connected to the barrel 5. The wind pressure generated in the bellows frame 6 passes through the two booster pipes 84 to reach the two sets of three-way valves 85, and the front end of the three-way valve 85 is connected to the supply The material pipe 86, the bottom end of the feed pipe 86 is connected with a vertical telescopic pipe 87 that is connected and matched with the mold cavity. After the materials in the two groups of material barrels 5 are fed into the two groups of three-way valves 85, under the action of wind pressure, the two-way materials are forced to quickly pass through the vertical telescopic pipes 87 on the two feed pipes 86 to be pressurized and fed into the mold cavities of the top mold 4 and the bottom mold 3 in a sealed state, so as to avoid hysteresis during the material flow, improve the uniformity and comprehensiveness of the material distribution, improve the injection molding quality of the automobile front door decorative panel, and reduce its injection molding defective rate; The bottom mold 3 and the top mold 4 are provided with an interlayer cavity 12 connected and matched with the upper cover 91 and the lower cover 92 on one side near the mold cavity, which is conducive to the flow of cold air. A small refrigerator 93 is embedded on the outer side of the lower cover 92, and the boost pipe 84 is connected with a three-way head 94. The three-way head 94 and the outer side of the upper cover 91 are both connected with a rotating end 95, and the inner cavity of the rotating end 95 is rotatably connected with a connecting end 96 and keeps each other in a state of mutual communication. The inner end of the connecting end 96 is connected with an oblique telescopic tube 97. The top mold 4 and the bottom mold 3 in a sealed state first drive the two groups of upper covers 91 and lower covers 92 to be closed. At the same time, the wind pressure in the two boost pipes 84 passes through the rotating ends 95 and the connecting ends 96 on the two groups of three-way heads 94 to reach the two oblique telescopic tubes 97. The wind pressure in the two inclined telescopic tubes 97 reaches the two groups of upper covers 91, and then the two groups of small refrigerators 93 are turned on and the cold air is transported to the upper cover 91 through the lower cover 92. Under the action of the wind pressure, the two cold air is forced to be quickly supplied to the interlayer cavity 12 in the sealed top mold 4 and the bottom mold 3, thereby reducing the loss rate of the cold air, extending the duration of the cold air, and cooling and molding the material in the mold cavity quickly and for a long time, further improving the injection molding efficiency of the automobile front door decorative panel, and providing a unified wind pressure drive mode by the rotation of a single impeller 83, so as to realize the uniform distribution of the material in the mold cavity in a linked and continuous manner, and quickly and comprehensively cool the evenly distributed material, without the need to purchase other equipment, thereby reducing the equipment investment cost.

[0025] like Figure 13-Figure 15 As shown, during the injection molding of the front door decorative panel of the automobile, it is mostly necessary to manually pour the materials prepared elsewhere into the mold cavity of the injection mold, which is time-consuming and troublesome, and leads to low injection efficiency of the front door decorative panel of the automobile. The inner cavity of the barrel 5 is provided with a feeding assembly, and the feeding assembly includes a main circular gear 101 fixed on the other output shaft of the double-headed motor 71, and both sides of the main circular gear 101 are meshed with sub-circular gears 102, and the inner cavity of the sub-circular gear 102 is fixedly connected with a rotating shaft 103 that rotates with the vertical frame 1 and the barrel 5. The double-headed motor 71 drives the sub-circular gears 102 on both sides to rotate through the main circular gear 101, and the top of the rotating shaft 103 is circumferentially fixed with guide vanes from top to bottom. 104 and spoiler blades 105, and a stirring blade 106 with a stirring hole is fixedly connected to the middle of the rotating shaft 103, and a conveying frame 107 used in conjunction with the three-way valve 85 is fixedly connected to the bottom of the rotating shaft 103. The sub-circular gears 102 on both sides drive the two groups of guide blades 104 and spoiler blades 105, the stirring blades 106 with stirring holes and the conveying frame 107 to rotate through the two rotating shafts 103. The two groups of guide blades 104 and spoiler blades 105 first stir the added materials for turbulence, and the stirring blades 106 with stirring holes further stir them, and then the two groups of conveying frames 107 squeeze the prepared materials in the two groups of material barrels 5 and feed them into the two groups of three-way valves 85, so as to realize the rapid supply of materials, which is convenient and quick.

[0026] The working principle of an injection molding mold for a front door decorative plate of an automobile is as follows: first, the electric push rod 72 is controlled to open and drive the clamping head 73 to move down and clamp into the clamping seat 74, then the double-headed motor 71 is controlled to open and drive the screw rod 75 on the clamping seat 74 to rotate forward through the clamping head 73 clamped in place, and the screw rod 75 drives the screw rod sleeve 76 to move downward accordingly, and the screw rod sleeve 76 drives the top mold 4 to move downward toward the bottom mold 3 through the connecting seat 77 until the top mold 4 and the bottom mold 3 are sealed, and the upper covers 91 on both sides of the top mold 4 and the lower covers 92 on both sides of the bottom mold 3 are also completely sealed, first the double-headed motor 71 is controlled to pause, and then the electric push rod 72 is controlled to close and drive the clamping head 73 to move up and away from the clamping seat 74 to the initial position, and the top mold 4 and the bottom mold 3 and the two sets of upper covers 91 and lower covers 92 still remain in a sealed state; Next, two portions of materials are poured into the two groups of barrels 5, and the double-headed motor 71 is controlled to be turned on again. Then, the double-headed motor 71 drives the two groups of sub-circular gears 102 to rotate through the main circular gear 101, and the two groups of sub-circular gears 102 drive the two groups of guide vanes 104, spoiler vanes 105, stirring vanes 106 and conveying racks 107 to rotate in the two groups of barrels 5 through the two rotating shafts 103. The two groups of guide vanes 104 and spoiler vanes 105 in the rotating state perform front-stage turbulent stirring on the materials, and the two groups of stirring vanes 106 with stirring holes further perform middle-stage stirring on the materials, and then the two groups of conveying racks 107 roll the two mixed materials again to prevent the materials in the two groups of barrels 5 from solidifying; At the same time, the double-headed motor 71 drives the impeller 83 on the secondary bevel gear 82 to rotate in the bellows frame 6 through the main bevel gear 81 and generate wind pressure. The wind pressure generated in the bellows frame 6 is pressurized by the boost valves on the two boost pipes 84 and then supplied to the two sets of three-way valves 85. At the same time, the materials in the two sets of barrels 5 are quickly supplied to the two sets of three-way valves 85 under the extrusion and conveying cooperation of the two sets of conveying frames 107. Under the action of the two-way wind pressure, the materials in the two sets of three-way valves 85 are forced to pass through the vertical telescopic pipes 87 on the two feeding pipes 86 and reach the mold cavities of the top mold 4 and the bottom mold 3 in a sealed state evenly and comprehensively, waiting for the molding work. At the same time, the wind pressure in the two booster pipes 84 is also supplied to the two groups of three-way heads 94, and then passes through the two groups of rotating ends 95 and the connecting ends 96 in turn to reach the two inclined telescopic tubes 97, and is supplied to the upper cover 91 which is in a sealed state with the lower cover 92 through the two inclined telescopic tubes 97, and then the two groups of small refrigerators 93 are controlled to be turned on, so that the cold air generated by the two groups of small refrigerators 93 passes through the two groups of lower covers 92 to reach the two groups of upper covers 91, and under the action of the two-way wind pressure, the cold air reaching the two groups of lower covers 92 and the upper cover 91 is forced to flow quickly into the interlayer cavity 12, and the material formed in the mold cavity is quickly cooled, thereby accelerating the injection molding efficiency of the automobile front door decorative panel. After its injection molding, on the contrary, the top mold 4 is controlled to move up and the upper half of the automobile front door decorative panel is exposed, and then the two groups of demolding cylinders 13 are controlled to be opened and the automobile front door decorative panel in the bottom mold 3 is driven to be ejected and demolded upward by the two ejector rods 14, thereby completing the injection molding of the automobile front door decorative panel.

[0027] It should be noted that the specific models and specifications of the double-headed motor 71, the electric push rod 72, the small refrigerator 93 and the demoulding cylinder 13 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be repeated in detail.

[0028] The power supply circuits of the double-headed motor 71, the electric push rod 72, the small refrigerator 93 and the demoulding cylinder 13 are clear to those skilled in the art and will not be described in detail here.

[0029] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. An injection molding mold for a front door decorative panel of an automobile, comprising a vertical frame (1), characterized in that: The bottom of the front side of the vertical frame (1) is fixedly connected to a bottom frame (2), and the top of the bottom frame (2) is fixedly connected to a bottom mold (3), a top mold (4) is arranged above the bottom mold (3), and a mold cavity is provided on the side facing each other of the bottom mold (3) and the top mold (4); The tops of both sides of the vertical frame (1) are fixedly connected to a material barrel (5), and the back of the vertical frame (1) is fixedly connected to a bellows frame (6), the bottom of the inner cavity of the vertical frame (1) is provided with a closing component assembled with the bottom mold (3) and the top mold (4), and the closing component includes a double-headed motor (71) embedded in the top of the inner cavity of the vertical frame (1), and an electric push rod (72) embedded in an output shaft of the double-headed motor (71), a clamping head (73) is fixedly connected to the piston rod of the electric push rod (72), and a clamping seat (74) is provided below the clamping head (73), the bottom of the clamping seat (74) is fixedly connected to a screw rod (75) that rotates with the vertical frame (1), and a screw rod sleeve (76) is threadedly connected to the screw rod (75), and the front of the screw rod sleeve (76) is fixedly connected to a connecting seat (77) that is fixedly matched with the top mold (4); Both sides of the bellows frame (6) near the barrel (5) are provided with a supply assembly and a cooling assembly used in conjunction with the bottom mold (3) and the top mold (4) for pressurized feeding and cooling molding, and the supply assembly includes a main bevel gear (81) fixed to the output shaft of the double-headed motor (71) near the electric push rod (72), one side of the main bevel gear (81) is meshed with a secondary bevel gear (82), the back side of the secondary bevel gear (82) is fixedly connected to an impeller (83) used in conjunction with the bellows frame (6) through a fan shaft, and both sides of the bellows frame (6) are connected to a boosting pipe (84) with a boosting valve, and the front end of the boosting pipe (84) is connected to a three-way valve (85) connected to the barrel (5). The front end of the three-way valve (85) is connected to a feed pipe (86), the bottom end of the feed pipe (86) is connected to a vertical telescopic pipe (87) that is connected to the mold cavity, and the cooling assembly comprises an upper cover (91) and a lower cover (92) that are respectively connected to the top mold (4) and the bottom mold (3) on both sides, a small refrigerator (93) is embedded on the outer side of the lower cover (92), and the boost pipe (84) is connected to a three-way head (94), the outer sides of the three-way head (94) and the upper cover (91) are both connected to a rotating end (95), and the inner cavity of the rotating end (95) is rotatably connected to the connecting end (96) and maintains a mutually connected state, and the inner end of the connecting end (96) is connected to an oblique telescopic pipe (97).

2. The injection molding mold for a front door trim panel of an automobile according to claim 1, characterized in that: The front side of the vertical frame (1) close to the bottom mold (3) and the top mold (4) is provided with a vertical groove (11) which is slidably matched with the connecting seat (77).

3. The injection molding die for a front door trim panel of an automobile according to claim 2, characterized in that: The bottom mold (3) and the top mold (4) are provided with an interlayer cavity (12) on one side close to the mold cavity and communicating with the upper cover (91) and the lower cover (92).

4. The injection molding die for a front door trim panel of an automobile according to claim 3, characterized in that: Both sides of the inner cavity of the base frame (2) are fixedly connected to a demoulding cylinder (13), and the piston rod of the demoulding cylinder (13) is fixedly connected to a push rod (14) used in conjunction with the bottom mold (3).

5. The injection molding die for a front door trim panel of an automobile according to claim 4, characterized in that: The bottom mold (3) is connected to drain pipes (15) with plugging heads on all sides near the mold cavity, and the drain pipes (15) are not interconnected with the interlayer cavity (12).

6. The injection molding die for a front door trim panel of an automobile according to claim 5, characterized in that: A material level sensor (16) is embedded at the bottom of the back of the material barrel (5), and a material inlet and a material discharge port with sealing covers are respectively provided on the outside of the material barrel (5).

7. The injection molding die for a front door trim panel of an automobile according to claim 6, characterized in that: The back circumference of the bellows frame (6) is provided with air filter holes, and the four sides of the bottom of the top mold (4) are fixedly connected with positioning pins, and the four sides of the top of the bottom mold (3) are provided with positioning holes.

Images