Core-pulling ejection injection molding structure for decorative plastic panel of automobile air outlet

Abstract

The utility model provides an automobile air outlet decorative plastic panel core-pulling ejection injection molding structure which comprises an upper mold, a lower mold and an ejection mechanism, the ejection mechanism comprises a first ejection structure and a second ejection structure, the first ejection structure comprises a lateral core-pulling structure, a straight ejection structure and a first inclined ejection structure, and the second ejection structure comprises a lateral core-pulling structure and a second inclined ejection structure. And the second ejection structure comprises a second inclined ejection structure. When the mold is opened, the lateral core-pulling structure firstly pulls the core to expose the opening, and then the straight ejection structure, the first inclined ejection structure and the second inclined ejection structure eject the assembly A and the assembly B out in the mold opening and closing direction. Due to the fact that a plurality of holes are formed in the assembly A, the core pulling structure can ensure that the holes are exposed in the mold opening process and can reduce the situation that a large number of model lines appear on the surface of the side wall due to a plurality of inclined ejection structures, and therefore precision is reduced, and the ejection structure of the assembly B is arranged on the inner surface, the requirement for precision is low. And different ejection structures are arranged under different conditions, so that the safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a core-pulling ejection injection molding structure for a decorative plastic panel of an automobile air outlet. Background Art

[0002] The car air outlet is a part of the car air conditioning system, which consists of the air outlet and the air duct. It is responsible for delivering the processed air to the car cabin to complete the functions of cooling, heating, defogger, defrost, and air purification. The traditional air outlet is composed of decorative panels, face frames, shells, dampers, dial wheels, dial buttons, blades and other components.

[0003] Related art automobile air outlet decorative plastic panel 9 such as Figure 1-2 As shown, the plastic panel 9 includes a component A 91 and a component B 92. A large number of snap-in plates 911 are designed on the component A 91. The snap-in plates 911 are provided with openings 912. The direction of the openings 912 is parallel to the direction of mold opening and closing. The component A 91 is also provided with a flip-lock structure 913, which will be snapped onto the mold; the component B 92 is also provided with a snap-in plate 911 and openings 912, and a snap-in structure 921. The snap-in structure 921 is provided with a through hole 922.

[0004] The overall structure of the above-mentioned related technical solutions is relatively complex. If a general ejection method such as linear ejection using multiple straight rods is adopted, it will inevitably damage the mold itself and affect the product qualification rate. Utility Model Content

[0005] The present application provides a core-pulling ejection injection molding structure for a decorative plastic panel of an automobile air outlet, which has the effect of smoothly ejecting a complex mold.

[0006] The present application provides a core-pulling ejection injection molding structure for a decorative plastic panel of an automobile air outlet, which adopts the following technical solution:

[0007] A core-pulling ejection injection molding structure for a decorative plastic panel of an automobile air outlet comprises an upper mold, a lower mold and an ejection mechanism, wherein the ejection mechanism comprises a first ejection structure and a second ejection structure, wherein the first ejection structure is used to eject component A, and the second ejection structure is used to eject component B, wherein the first ejection structure comprises a lateral core-pulling structure, a straight ejection structure and a first inclined ejection structure, wherein the lateral core-pulling structure cooperates with the lower mold to form a clamping plate and an opening, and the first inclined ejection structure cooperates with the lower mold to form a buckle structure; wherein the second ejection structure comprises a second inclined ejection structure, wherein the second inclined ejection structure cooperates with the lower mold to form a clamping structure, and when the mold is opened, the lateral core-pulling structure first pulls the core to expose the opening, and then the straight ejection structure, the first inclined ejection structure and the second inclined ejection structure eject components A and B along the mold opening and closing direction.

[0008] Through the above technical scheme, the core-pulling structure and the inclined top structure can avoid direct ejection opening and flip-up structure, thereby reducing the situation of mold damage during the ejection process. Since there are many openings on component A, the core-pulling structure can not only ensure that the openings are exposed when the mold is opened, but also reduce the situation where multiple inclined top structures cause a large number of model lines on the side wall surface, thereby reducing the accuracy. The ejection structure of component B is set on the inner surface, with lower accuracy requirements. Different ejection structures are set for different situations to increase safety.

[0009] Preferably, the lateral core pulling structure includes a core pulling piece, an inclined guide column and a reset structure. The core pulling piece slides horizontally on the lower mold. The core pulling piece is inclined with an inclined hole that cooperates with the inclined guide column. The inclined guide column is arranged on the upper mold. When the inclined guide column is inserted into the inclined hole, the core pulling piece is driven by the inclined guide column to move toward one end of the lower mold until it abuts against the lower mold. The reset structure is used to move the core pulling piece away from the end of the lower mold after the inclined guide column is pulled out.

[0010] Through the above technical scheme, the opening and closing action of the upper mold is utilized to drive the inclined guide pin away from or inserted into the inclined hole so that the core pulling part is away from or attached to the lower mold. Therefore, during the mold opening process, the core pulling part is away from the lower mold to expose the opening hole, thereby reducing the possibility of damage to the mold during the mold opening process.

[0011] Preferably, the core pulling part includes a slide, a connecting rod and an insert, the slide moves on the lower mold, the inclined hole is opened on the slide, a matching groove is opened on one end of the slide facing the lower mold, and the matching groove is arranged parallel to the opening and closing direction of the mold, one end of the connecting rod passes through the insert for forming the opening, and the other end is provided with a flange, and the flange is clamped in the matching groove. When the slide moves on the lower mold, the connecting rod follows the movement of the slide through the flange.

[0012] Through the above technical solution, the opening is the design that is most easily damaged during mold opening, and the precision requirement for the opening is also extremely high. Therefore, the connecting rod is designed to be able to pass through the insert for forming the opening, thereby ensuring the forming accuracy, and by being clamped in the mating groove by the flanging, it can be ensured that when the slide moves, the connecting rod can follow the movement of the slide, to ensure that when the mold is opened and closed, the connecting rod can be away from the lower mold or fit the lower mold to expose the core pulling of the opening, thereby not affecting the mold opening process.

[0013] Preferably, the insert is provided with a countersunk hole that cooperates with the bolt, the insert is locked on the lower mold by the bolt, the insert is used to form the outer surface of the clamping plate, and the countersunk hole is provided with a cover plate, which is used to prevent the molten raw material from flowing into the countersunk hole.

[0014] Through the above technical solution, inserts are used to form the outer surface of component A, which is beneficial to improve the accuracy of the outer surface and reduce the situation where the wall thickness becomes thinner due to subsequent excessive processing caused by low accuracy. At the same time, the design of the cover plate avoids the situation where the molten raw material flows into the countersunk groove and damages the outer surface shape and sticks to the insert.

[0015] Preferably, the reset structure includes a spring and a limiter, the two ends of the spring are respectively arranged on the lower mold and the slide, the spring is arranged perpendicular to the mold opening and closing direction, the spring is always in a stretched state, and the limiter is used to limit the distance the slide is pushed by the spring.

[0016] Through the above technical solution, the design of the spring can ensure that during the core pulling process, when the inclined guide pin is pulled out, the spring pushes the slide out, so that the slide is away from the lower mold, thereby driving the connecting rod away from the lower mold to achieve core pulling. At the same time, the limiter is used to limit the distance that the slide is pushed by the spring, which can ensure that the slide can be restored to the correct position during the recovery process, avoiding problems in mold processing caused by exceeding the position.

[0017] Preferably, the limiting member comprises a limiting block, the limiting block is arranged on the lower die, and the slide seat is provided with a movable groove cooperating with the limiting block.

[0018] Through the above technical solution, the limit block design is used to limit the range of movement of the card block, ensuring that the inclined guide pin can accurately enter the inclined hole of the card block during mold closing, so that the card block can safely abut against the lower mold, thereby improving the safety of the mold closing process.

[0019] Preferably, the first inclined top structure includes a first top plate, multiple first inclined top columns and a first inclined top block, the first top plate moves along the mold opening and closing direction, one end of the first inclined top column is arranged on the first top plate, and the other end is arranged toward the lower mold, the first inclined top block is fixed on the end of the first inclined top column facing the lower mold, the first inclined top block is used to cooperate with the lower mold to form the outer side surface and the flip-button structure of the component A, the first inclined top column is arranged on the first top plate through a sliding structure, the sliding structure includes a base and a slider, the base is arranged on the first top plate, the slider slides on the base perpendicular to the mold opening direction, and the first inclined top column is arranged on the slider; the straight top structure includes a second top plate and multiple straight top rods, the second top plate is located below the first top plate, one end of the straight top rod is arranged on the second top plate, the other end of the straight top rod is attached to the bottom surface of the plastic panel, and the straight top rod part completely passes through the insert setting; the second inclined top structure is a similar structure to the first inclined top structure.

[0020] Through the above technical scheme, the first inclined top structure and the second inclined top structure cooperate with the lower mold to form the outer side surface and the flip-button structure of component A and the outer side surface and the flip-button structure and the opening of component B. The inclined top structure is used for the opening of component B because the opening of component B is set on the inner side, so there is no position to place the core pulling structure and the precision requirement is not high, and the second inclined top structure can meet the requirements; at the same time, the inclined top structure shares the demoulding force of the mold through the inclined top angle during the mold opening process, thereby reducing the force required for demoulding and thus reducing product deformation. At the same time, the structures of component A and component B are relatively complex. The inclined top structure can reduce product deformation caused by uneven force direction during the demoulding process and improve the molding quality of the product; at the same time, the straight top structure is used to prevent component A from being offset relative to the opening and closing direction as the inclined top structure moves; by coordinating the movement of the above structures, the damage that may be caused to the mold during the mold opening process is reduced, thereby improving the stability of the molded product.

[0021] Preferably, the second ejection structure also includes an anti-slip structure, which includes two anti-slip rods. The two anti-slip rods are located on both sides of component B, one end of the anti-slip rod is arranged on the second top plate, and the other end of the anti-slip rod is abutted against the bottom surface of the plastic panel. A circular ring is also provided on the bottom surface of component B, and the anti-slip rod is used to shape the inner surface of the circular ring.

[0022] Through the above technical solution, when the mold opening operation is performed, the anti-slip rod is used to limit the movement of component B following the second inclined ejector block of the second ejection structure, the second inclined ejector block of the second ejection structure is used to form through holes and openings, and the second inclined ejector column of the second ejection structure is inclined toward the length direction of the through holes. Then, when the mold is opened, the second inclined ejector column will be slowly pulled out of the through holes and the openings, thereby reducing the possibility of damage to the mold during the mold opening process and enhancing stability.

[0023] Preferably, it also includes a driving member, which drives the second top plate to move along the mold opening and closing direction, and also includes a stroke control structure, which includes a trigger block and two stroke switches, and the two stroke switches are respectively arranged on the lower mold in relative directions along the mold opening and closing direction, and the trigger block is arranged on the second top plate, and the trigger block is located between the two stroke switches. When the trigger block abuts against any stroke switch, the driving member stops working.

[0024] Through the above technical solution, the trigger block and two travel switches are used to control the driving member. When the trigger block abuts against any travel switch, the driving member stops working to prevent the equipment from over-travel movement. At the same time, it can ensure that the driving member can drive the second ejector plate to start and end ejecting the mold at the correct position, thereby improving the accuracy and stability of the product when opening the mold.

[0025] The technical effects of this utility model are mainly reflected in the following aspects:

[0026] 1. The utility model designs a mold opening process in which the core is first pulled out and then ejected by the inclined ejector and the straight ejector, and sets different structures for different complex structures to cooperate with the mold opening, thereby reducing the damage that may be caused to the mold during the mold opening process, thereby improving the stability of the molded product;

[0027] 2. The utility model reduces the movement of component B following the inclined top structure by designing an anti-slip structure, thereby slowly pulling the second inclined top block out of the through hole and the opening, thereby increasing the stability during the mold opening process;

[0028] 3. The utility model controls the driving member by designing a trigger block and two travel switches. When the trigger block abuts against any travel switch, the driving member stops working to prevent the equipment from over-travel movement. At the same time, it can ensure that the driving member can drive the upper mold to start and end opening and closing the mold at the correct position, thereby improving the accuracy and stability of product processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of component A in the related art;

[0030] Figure 2 It is a schematic diagram of the overall structure of component B in the related art;

[0031] Figure 3 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0032] Figure 4 This is a schematic diagram of a part of the structure of an embodiment of the present application without the upper mold;

[0033] Figure 5 This is a schematic diagram of the overall structure of the second ejection structure in the embodiment of the present application;

[0034] Figure 6 This is a schematic diagram of the overall structure of the first ejection structure in the embodiment of the present application;

[0035] Figure numerals: 1, upper mold; 11, injection port; 2, lower mold; 3, ejection mechanism; 4, first ejection structure; 41, lateral core pulling structure; 411, core pulling member; 412, slide seat; 4121, inclined hole; 4122, matching groove; 4123, movable groove; 413, connecting rod; 4131, flange; 414, insert; 4141, countersunk hole; 4142, cover plate; 415, inclined guide column; 416, reset structure; 4161, spring; 4162, limit member; 4163, limit block; 42, straight top structure; 421, straight top rod; 422, second top plate; 43, first inclined top structure; 431, First ejector plate; 432, first slanted ejector column; 433, first slanted ejector block; 44, sliding structure; 441, base; 442, slider; 5, second ejector structure; 51, anti-slip structure; 511, anti-slip rod; 52, second slanted ejector structure; 521, second slanted ejector column; 522, second slanted ejector block; 6, cavity; 7, driving member; 71, travel control structure; 72, trigger block; 73, travel switch; 8, bottom plate; 9, plastic panel; 91, component A; 911, snap-on plate; 912, opening; 913, flip-up structure; 92, component B; 921, snap-on structure; 922, through hole; 923, ring. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-6 , the specific implementation methods of the utility model are further described in detail to make the technical solution of the utility model easier to understand and grasp.

[0037] The present application embodiment discloses a core-pulling ejection injection molding structure for a decorative plastic panel of an automobile air outlet:

[0038] Reference Figure 1-Figure 6 A core-pulling ejection injection molding structure for a decorative plastic panel of an automobile air outlet comprises an upper mold 1, a lower mold 2 and an ejection mechanism 3, wherein the ejection mechanism 3 comprises a first ejection structure 4 and a second ejection structure 5, wherein the first ejection structure 4 is used to eject a component A91, and the second ejection structure 5 is used to eject a component B92, wherein the first ejection structure 4 comprises a lateral core-pulling structure 41, a straight ejection structure 42 and a first inclined ejection structure 43, wherein the lateral core-pulling structure 41 cooperates with the lower mold 2 to form a clamping plate 911 and an opening 912, and the first inclined ejection structure 43 cooperates with the lower mold 2 to form a buckle structure 913; wherein the second ejection structure 5 comprises a second inclined ejection structure 52, wherein the second inclined ejection structure 52 cooperates with the lower mold 2 to form a clamping structure 921, and when the mold is opened, the lateral core-pulling structure 41 first pulls the core to expose the opening 912, and the straight ejection structure 42, the first inclined ejection structure 43 and the second inclined ejection structure 52 cooperate to eject the components A91 and B92 along the direction of mold opening and closing.

[0039] The core-pulling structure and the inclined top structure can avoid direct ejection openings and the flip-button structure 913, thereby reducing the possibility of damage to the mold during the ejection process. Since there are many openings 912 on component A91, the core-pulling structure can ensure that the openings 912 are exposed when the mold is opened and can also reduce the possibility of a large number of model lines on the side wall surface due to multiple inclined top structures, thereby reducing the accuracy. The ejection structure of component B92 is set on the inner surface, with lower requirements on accuracy. Different ejection structures are set for different situations to increase professionalism.

[0040] Reference Figure 3 The upper mold 1, the lower mold 2 and the ejection mechanism 3 together form a casting cavity 6. The upper mold 1 includes an injection port 11 and a runner connected to the injection port 11. The runner connects the injection port 11 and the cavity 6. The injection port 11 is connected to an external injection molding machine, and a plastic panel 9 is injected into the cavity 6 through the runner.

[0041] Reference Figure 6 The lateral core pulling structure 41 includes a core pulling piece 411, an inclined guide column 415 and a reset structure 416. The core pulling piece 411 slides horizontally on the lower mold 2. An inclined hole 4121 cooperating with the inclined guide column 415 is obliquely opened on the core pulling piece 411. The inclined guide column 415 is fixed to the upper mold 1 by bolts and matching grooves 4122. When the inclined guide column 415 is inserted into the inclined hole 4121, the core pulling piece 411 is driven by the inclined guide column 415 to move toward the end that fits the lower mold 2 until it abuts against the lower mold 2. The reset structure 416 is used to move the core pulling piece 411 toward the end away from the lower mold 2 after the inclined guide column 415 is pulled out. The opening and closing action of the upper mold 1 is utilized to drive the inclined guide pin 415 away from or inserted into the inclined hole 4121 so that the core pulling part 411 is away from or attached to the lower mold 2. Therefore, during the mold opening process, the core pulling part 411 is away from the lower mold 2 to expose the opening 912, thereby reducing the possibility of damage to the mold during the mold opening process.

[0042] Reference Figure 6The core pulling part 411 includes a slide 412, a connecting rod 413 and an insert 414. The slide 412 moves on the lower mold 2. The inclined hole 4121 is opened on the slide 412. A matching groove 4122 is opened on the end of the slide 412 facing the lower mold 2. The matching groove 4122 is arranged parallel to the opening and closing direction of the mold. One end of the connecting rod 413 passes through the insert 414 for forming the opening 912, and the other end is fixed with a flange 4131. The flange 4131 is clamped in the matching groove 4122. When the slide 412 moves on the lower mold 2, the connecting rod 413 follows the slide 412 through the flange 4131. The opening 912 is the design that is most easily damaged during mold opening, and the precision requirement for the opening 912 is also extremely high. Therefore, the connecting rod 413 is designed to be able to pass through the insert 414 to form the opening 912, thereby ensuring the molding accuracy, and the flange 4131 is clamped in the matching groove 4122 to ensure that when the slide 412 moves, the connecting rod 413 can follow the movement of the slide 412 to ensure that when the mold is opened and closed, the connecting rod 413 can be away from the lower mold 2 or fit the lower mold 2 to expose the core of the opening 912, thereby not affecting the mold opening process.

[0043] Reference Figure 6 The insert 414 is provided with a countersunk hole 4141 for matching with the bolts. The insert 414 is locked on the lower die 2 by the bolts. The insert 414 is used to form the outer surface of the clamping plate 911. The countersunk hole 4141 is provided with a cover plate 4142. The cover plate 4142 is used to prevent the molten raw material from flowing into the countersunk hole 4141. The use of the insert 414 to form the outer surface of the component A91 is conducive to improving the accuracy of the outer surface and reducing the situation where the wall thickness becomes thinner due to the subsequent excessive processing caused by low accuracy. At the same time, the design of the cover plate 4142 prevents the molten raw material from flowing into the countersunk groove to damage the outer surface shape and adhere to the insert 414.

[0044] Reference Figure 3 and Figure 6 The reset structure 416 includes a spring 4161 and a limiter 4162. The two ends of the spring 4161 are fixed on the lower mold 2 and the slide 412 respectively. The spring 4161 is arranged perpendicular to the mold opening and closing direction. The spring 4161 is always in a stretched state. The limiter 4162 is used to limit the distance that the slide 412 is pushed by the spring 4161. The design of the spring 4161 can ensure that during the core pulling process, when the inclined guide column 415 is pulled out, the spring 4161 pushes the slide 412 out, so that the slide 412 is away from the lower mold 2, thereby driving the connecting rod 413 to also be away from the lower mold 2 to achieve core pulling. At the same time, the limiter 4162 is used to limit the distance that the slide 412 is pushed by the spring 4161, so that the slide 412 can be restored to the correct position during the recovery process to avoid problems in mold processing caused by exceeding the position.

[0045] The limiter 4162 includes a limiter block 4163, which is fixed on the lower mold 2, and a movable groove 4123 that cooperates with the limiter block 4163 is provided on the slide 412. The limiter block 4163 is designed to limit the range of motion of the block, ensuring that the inclined guide column 415 can accurately enter the inclined hole 4121 of the block when the mold is closed, so that the block can safely abut against the lower mold 2 to improve the safety of the mold closing process. At the same time, a group of lateral core pulling structures 41 are arranged on the inner side of the lower mold 2, and the group of lateral core pulling structures 41 uses the lower mold 2 to limit the range of motion of the slide 412.

[0046] Reference Figure 5-Figure 6 The first inclined top structure 43 includes a first top plate 431, a plurality of first inclined top columns 432 and a first inclined top block 433. The first top plate 431 moves along the direction of mold opening and closing. One end of the first inclined top column 432 abuts against the first top plate 431, and the other end is arranged toward the lower mold 2. The first inclined top block 433 is fixed on the end of the first inclined top column 432 facing the lower mold 2. The first inclined top block 433 is used to cooperate with the lower mold 2 to form the outer side surface of the molding component A91 and the flip buckle structure 913. The first inclined top column 432 is arranged on the first top plate 431 through the sliding structure 44, and the sliding The structure 44 includes a base 441 and a slider 442. The base 441 is fixed on the first top plate 431. The slider 442 slides on the base 441 in a direction perpendicular to the mold opening direction. The first inclined top column 432 is fixed on the slider 442. The straight top structure 42 includes a second top plate 422 and a plurality of straight top rods 421. The second top plate 422 is located below the first top plate 431. One end of the straight top rod 421 abuts against the second top plate 422. The other end of the straight top rod 421 is attached to the bottom surface of the plastic panel 9. Part of the straight top rod 421 completely passes through the insert 414.

[0047] The second inclined roof structure 52 has a similar structure to the first inclined roof structure 43. The second inclined roof structure 52 also includes multiple second inclined roof columns 521 and second inclined roof blocks 522. One end of the second inclined roof column 521 abuts against the first top plate 431, and the other end is set toward the lower mold 2. The second inclined roof block 522 is fixed on the end of the second inclined roof column 521 facing the lower mold 2. The second inclined roof block 522 is used to cooperate with the lower mold 2 to form the outer side surface of the molding component B92 and the clamping structure 921. The second inclined roof column 521 is set on the first top plate 431 through the sliding structure 44.

[0048] The first slanted top structure 43 and the second slanted top structure 52 cooperate with the lower mold 2 to form the outer side surface and the flip-button structure 913 of the molding component A91 and the outer side surface and the flip-button structure 913 and the opening 912 of the component B92. The opening 912 of the component B92 adopts the slanted top structure because the opening 912 of the component B92 is set on the inner side, so there is no place to place the core pulling structure and the precision requirement is not high, and the second slanted top structure 52 can meet the requirements; at the same time, the slanted top structure shares the demoulding force of the mold through the slanted top angle during the mold opening process, thereby reducing the force required for demoulding and thus reducing product deformation. At the same time, the structures of components A91 and B92 are relatively complex. The use of the slanted top structure can reduce product deformation caused by uneven force direction during the demoulding process and improve the molding quality of the product; at the same time, the straight top structure 42 is used to prevent component A91 from being offset relative to the mold opening and closing direction as the slanted top structure moves; by coordinating the movement of the above-mentioned structures, the damage that may be caused to the mold during the mold opening process is reduced, thereby improving the stability of the molded product.

[0049] Reference Figure 5 The second ejection structure 5 also includes an anti-skid structure 51, which includes two anti-skid rods 511. The two anti-skid rods 511 are located on both sides of the component B92. One end of the anti-skid rod 511 abuts against the second top plate 422, and the other end of the anti-skid rod 511 abuts against the bottom surface of the plastic panel 9. A ring 923 is also provided on the bottom surface of the component B92. The anti-skid rod 511 is used to shape the inner surface of the ring 923. When the mold is opened, the anti-skid rod 511 is used to limit the component B92 from following the second inclined ejector block 522 of the second ejection structure 5. The second inclined ejector block 522 of the second ejection structure 5 is used to shape the through hole 922 and the opening 912. The second inclined ejector column 521 of the second ejection structure 5 is inclined toward the length direction of the through hole 922. Then, when the mold is opened, the second inclined ejector column 521 will be slowly withdrawn from the through hole 922 and the opening 912, which reduces the damage to the mold during the mold opening process and enhances stability.

[0050] Reference Figure 3, also includes a driving member 7, the driving member 7 generally adopts a cylinder, the telescopic rod of the cylinder is arranged toward the second top plate 422, one end of the cylinder is fixed on the second top plate 422, the telescopic rod of the cylinder is fixed on the bottom plate 8, the bottom plate 8 is located below the second top plate 422, the telescopic rod of the cylinder is clamped on the bottom plate 8, when the mold is opened, the bottom plate 8 is fixed, the telescopic rod of the cylinder is pushed out to drive the second top plate 422 to move along the mold opening direction, and also includes a stroke control structure 71, the stroke control structure 71 includes a trigger block 72 and two stroke switches 73, the two stroke switches 73 are respectively arranged on the lower mold 2 in relative directions along the mold opening and closing directions, the trigger block 72 is arranged on the second top plate 422, the trigger block 72 is located between the two stroke switches 73, when the trigger block 72 abuts against any stroke switch 73, the driving member 7 stops working. The cylinder is controlled by a trigger block 72 and two travel switches 73. When the trigger block 72 abuts against any travel switch 73, the cylinder stops working to prevent the equipment from over-travelling. At the same time, it can ensure that the cylinder can drive the second ejector plate 422 to start and end ejecting the mold at the correct position, thereby improving the accuracy and stability of the product when opening the mold.

[0051] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A core-pulling ejection injection molding structure for a decorative plastic panel of an automobile air outlet, comprising an upper mold (1), a lower mold (2) and an ejection mechanism (3), characterized in that: The ejection mechanism (3) comprises a first ejection structure (4) and a second ejection structure (5), wherein the first ejection structure (4) is used to eject component A (91), and the second ejection structure (5) is used to eject component B (92), wherein the first ejection structure (4) comprises a lateral core pulling structure (41), a straight ejection structure (42) and a first inclined ejection structure (43), wherein the lateral core pulling structure (41) cooperates with the lower mold (2) to form the clamping plate (911) and the opening (912), and the first inclined ejection structure (43) Cooperating with the lower mold (2) to form the flip-lock structure (913); the second ejection structure (5) includes a second inclined top structure (52), and the second inclined top structure (52) cooperates with the lower mold (2) to form the snap-on structure (921). When the mold is opened, the lateral core-pulling structure (41) first pulls the core to expose the snap-on plate (911) and the opening (912), and then the straight top structure (42), the first inclined top structure (43) and the second inclined top eject the components A (91) and B (92) along the mold opening and closing direction.

2. The core-pulling ejection injection molding structure of a decorative plastic panel for an automobile air outlet according to claim 1, characterized in that: The lateral core pulling structure (41) comprises a core pulling piece (411), an inclined guide column (415) and a reset structure (416); the core pulling piece (411) slides horizontally on the lower mold (2); an inclined hole (4121) cooperating with the inclined guide column (415) is obliquely opened on the core pulling piece (411); the inclined guide column (415) is arranged on the upper mold (1); when the inclined guide column (415) is inserted into the inclined hole (4121), the core pulling piece (411) is driven by the inclined guide column (415) to move toward one end that fits the lower mold (2) until it abuts against the lower mold (2); the reset structure (416) is used to move the core pulling piece (411) toward the end away from the lower mold (2) after the inclined guide column (415) is pulled out.

3. The core-pulling ejection injection molding structure of a decorative plastic panel for an automobile air outlet according to claim 2, characterized in that: The core-pulling component (411) comprises a slide (412), a connecting rod (413) and an insert (414); the slide (412) moves on the lower die (2); the inclined hole (4121) is provided on the slide (412); a matching groove (4122) is provided on one end of the slide (412) facing the lower die (2); the matching groove (4122) is arranged parallel to the direction of opening and closing the die; one end of the connecting rod (413) passes through the insert (414) for forming the opening (912); the other end is provided with a flange (4131); the flange (4131) is clamped in the matching groove (4122); when the slide (412) moves on the lower die (2), the connecting rod (413) follows the movement of the slide (412) through the flange (4131).

4. The core-pulling ejection injection molding structure of a decorative plastic panel for an automobile air outlet according to claim 3, characterized in that: The insert (414) is provided with a countersunk hole (4141) that cooperates with a bolt. The insert (414) is locked on the lower mold (2) by means of the bolt. The insert (414) is used to form the outer surface of the clamping plate (911). A cover plate (4142) is provided on the countersunk hole (4141). The cover plate (4142) is used to prevent molten raw materials from flowing into the countersunk hole (4141).

5. The core-pulling ejection injection molding structure of a decorative plastic panel for an automobile air outlet according to claim 2, characterized in that: The reset structure (416) comprises a spring (4161) and a limiter (4162), the two ends of the spring (4161) are respectively arranged on the lower mold (2) and the slide seat (412), the spring (4161) is arranged perpendicular to the mold opening and closing direction, the spring (4161) is always in a stretched state, and the limiter (4162) is used to limit the distance that the slide seat (412) is pushed by the spring (4161).

6. The core-pulling ejection injection molding structure of a decorative plastic panel for an automobile air outlet according to claim 5, characterized in that: The limiting member (4162) comprises a limiting block (4163), wherein the limiting block (4163) is arranged on the lower mold (2), and the sliding seat (412) is provided with a movable groove (4123) cooperating with the limiting block (4163).

7. The core-pulling ejection injection molding structure for automobile air outlet decorative plastic panel according to claim 1, characterized in that: The first inclined top structure (43) comprises a first top plate (431), a plurality of first inclined top columns (432) and a first inclined top block (433); the first top plate (431) moves along the direction of mold opening and closing; one end of the first inclined top column (432) is arranged on the first top plate (431), and the other end is arranged toward the lower mold (2); the first inclined top block (433) is fixed on the end of the first inclined top column (432) facing the lower mold (2); the first inclined top block (433) is used to cooperate with the lower mold (2) to form the outer side surface of the molding component A (91) and the buckle structure (913); the first inclined top column (432) is arranged on the first top plate (431) through a sliding structure (44); the sliding structure (44) comprises a base (441) and a slider (442), the base (441) is arranged on the first top plate (431), the slider (442) slides on the base (441) in a direction perpendicular to the mold opening direction, and the first inclined top column (432) is arranged on the slider (442); the straight top structure (42) includes a second top plate (422) and a plurality of straight top rods (421), the second top plate (422) is located below the first top plate (431), one end of the straight top rod (421) is arranged on the second top plate (422), and the other end of the straight top rod (421) is attached to the bottom surface of the plastic panel (9), and a portion of the straight top rod (421) is completely arranged through the insert (414); the second inclined top structure (52) is similar to the first inclined top structure (43).

8. The core-pulling ejection injection molding structure for automobile air outlet decorative plastic panel according to claim 7, characterized in that: The second ejection structure (5) also includes an anti-slip structure (51), the anti-slip structure (51) includes two anti-slip rods (511), the two anti-slip rods (511) are located on both sides of the component B (92), one end of the anti-slip rod (511) is arranged on the second top plate (422), and the other end of the anti-slip rod (511) is abutted against the bottom surface of the plastic panel (9), and a circular ring (923) is also arranged on the bottom surface of the component B (92), and the anti-slip rod (511) is used to shape the inner surface of the circular ring (923).

9. The core-pulling ejection injection molding structure for automobile air outlet decorative plastic panel according to claim 1, characterized in that: The invention also comprises a driving member (7), wherein the driving member (7) drives the second top plate (422) to move along the mold opening and closing direction, and a stroke control structure (71), wherein the stroke control structure (71) comprises a trigger block (72) and two stroke switches (73), wherein the two stroke switches (73) are respectively arranged on the lower mold (2) in a relative orientation along the mold opening and closing direction, wherein the trigger block (72) is arranged on the second top plate (422), wherein the trigger block (72) is located between the two stroke switches (73), and when the trigger block (72) abuts against any stroke switch (73), the driving member (7) stops working.

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