Synchronous demolding type bumper production mold capable of reducing generation of cracks

Abstract

The utility model discloses a synchronous demoulding bumper production mould capable of reducing generation of cracks, which relates to the technical field of moulds and comprises a lower fixing plate, limit rods are symmetrically mounted on the top surfaces of two ends of the lower fixing plate, upper movable plates are slidably sleeved on the outer rings of the limit rods, a fixed mould is fixedly mounted on the top surface of the lower fixing plate, and the fixed mould is fixedly mounted on the top surface of the lower fixing plate. And a movable mold is fixedly mounted on the bottom surface of the upper movable plate. According to the synchronous demolding type bumper production mold capable of reducing the generation of the cracks, the upper movable plate can slide on the limiting rod in a limiting manner, so that the movable mold and the fixed mold can be driven to be precisely butted and separated to realize injection molding work, and the multi-point ejection mechanism can actively reset when the movable mold descends; and meanwhile, when the movable mold ascends, the multi-point ejection mechanism can be driven to perform multi-point ejection demolding on the bumper subjected to injection molding, and the multi-point ejection demolding can prevent the bumper from generating cracks due to uneven stress, so that the demolding efficiency and effect of the bumper production mold are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field, concretely is a synchronous model bumper production mould of crack generation reduction. BACKGROUND

[0002] The automobile bumper not only has the decorative function, more importantly, absorbs and mitigates the external impact force, protects the car body and protects the car body and the passenger safety function, needs through the production mould to carry out injection molding work in the process of producing the bumper, however, the existing bumper production mould still has certain defects in the process of using;

[0003] Such as the application number for CN202321611361.0 is proposed a kind of automobile rear bumper injection mould, including right mould, the right mould left side is equipped with left mould, the outer wall of right mould and left mould is all equipped with round hole, the inner wall of round hole is slidably connected with limiting rod, the outer wall of right mould is equipped with right modeling groove, the outer wall of left mould is fixedly equipped with left modeling block, the inside of right mould and left mould is all equipped with cooling groove, the top of cooling groove is equipped with water inlet, in actual use process, after the automobile rear bumper injection mould is completed to the bumper injection, left mould and right mould separate and realize demolding work, and the structure of automobile bumper is complex and easy to be bonded in mould interior, affect demolding efficiency.

[0004] Therefore, we propose a synchronous model bumper production mould of crack generation reduction to solve the problems raised in the above. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a synchronous model bumper production mould of crack generation reduction to solve the demolding efficiency reduction problem raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a synchronous model bumper production mould of crack generation reduction, including lower fixed plate, the both ends top surface of lower fixed plate is symmetrically equipped with limiting rod, the outer ring of limiting rod is slidably equipped with upper movable plate, the top surface of lower fixed plate is fixedly installed with fixed mould, the bottom surface of upper movable plate is fixedly installed with movable mould;The inside of lower fixed plate and fixed mould is equipped with multiple-point ejection mechanism;Lower fixed plate and the inside of fixed mould are connected with circulation cooling mechanism.

[0007] Preferably, the multi-point ejection mechanism includes connecting grooves symmetrically opened inside both ends of the fixed mold. An ejection block is movably connected inside the connecting groove. A connecting rod is fixedly connected to the bottom surface of the ejection block. A base plate is fixedly installed at the bottom end of the connecting rod on the left and right sides respectively. A return spring is sleeved on the outer ring of the connecting rod between the base plate and the lower fixed plate. A linkage rod is connected through both ends of the base plate. The top end of the linkage rod is fixedly connected to the moving mold.

[0008] Preferably, the size of the connecting groove matches the size of the ejector block, and the connecting rod is slidably connected to the lower fixed plate and the fixed mold.

[0009] Preferably, the base plate and the connecting rod form a telescopic structure with the lower fixed plate through a return spring, and the linkage rod is slidably connected to both ends of the base plate.

[0010] The above-mentioned structural design allows the fixed mold to operate in conjunction with the multi-point ejection mechanism during the lifting and lowering process. When the fixed mold rises, it drives the multi-point ejection mechanism to rise as well, enabling the multi-point ejection and demolding of the injection-molded bumper mold. This helps to prevent cracks caused by uneven force during demolding, thus improving the demolding effect. When the fixed mold descends, the multi-point ejection mechanism can actively reset, thereby avoiding affecting the molding process of the bumper. This improves the usability and structural linkage of the synchronous demolding bumper production mold that reduces cracking.

[0011] Preferably, the circulating cooling mechanism includes a fixed ring fixedly installed at the bottom of the lower fixed plate, a suction fan blade rotatably installed inside the fixed ring, a servo motor connected to the bottom end of the suction fan blade, a support frame fixedly installed on the outer ring of the servo motor, the top end of the support frame being fixedly connected to the fixed ring, and cooling air ducts symmetrically connected to the top end of the fixed ring.

[0012] Preferably, the support frame is distributed at equal angles between the servo motor and the fixed ring, and the cooling air ducts are symmetrically embedded inside the lower fixed plate and the fixed mold.

[0013] The above-mentioned structural design facilitates the continuous extraction of external airflow through the circulating cooling mechanism, allowing the extracted airflow to flow rapidly inside the fixed mold. This facilitates heat exchange during the flow process and enables the heat and flowing air to be discharged, thereby promoting rapid cooling of the fixed mold and improving the efficiency of bumper cooling and molding.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the synchronous demolding bumper production mold that reduces crack generation;

[0015] 1. The upper movable plate can slide on the limit rod, thereby enabling the moving mold and the fixed mold to accurately dock and separate to achieve injection molding. When the moving mold descends, the multi-point ejection mechanism can actively reset to avoid affecting the molding effect of the bumper. At the same time, when the moving mold rises, it can drive the multi-point ejection mechanism to eject and demold the injection-molded bumper at multiple points, avoiding the phenomenon of the bumper sticking. Moreover, the multi-point ejection demolding can prevent the bumper from cracking due to uneven force, thus improving the demolding efficiency and effect of the bumper production mold.

[0016] 2. The circulating cooling mechanism allows airflow to flow inside both ends of the fixed mold, facilitating rapid hot and cold air exchange inside the fixed mold. This enables rapid cooling of the fixed mold and rapid cooling and molding of the internal bumper, improving the heat dissipation efficiency of the synchronous demolding bumper production mold that reduces cracking. Attached Figure Description

[0017] Figure 1 This is a side view schematic diagram of the separation structure of this utility model;

[0018] Figure 2 This is a side view schematic diagram of the docking structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the lower fixing plate and the fixed mold side section and the multi-point ejection mechanism of this utility model;

[0020] Figure 4 This is a side view of the multi-point ejection mechanism of this utility model.

[0021] Figure 5 This is a schematic diagram of the connection structure between the lower fixing plate and the fixed mold side section and the circulating cooling mechanism of this utility model.

[0022] In the diagram: 1. Lower fixed plate; 2. Limiting rod; 3. Upper movable plate; 4. Fixed mold; 5. Moving mold; 6. Connecting groove; 7. Ejector block; 8. Connecting rod; 9. Base plate; 10. Return spring; 11. Linkage rod; 12. Fixing ring; 13. Suction fan blade; 14. Servo motor; 15. Support frame; 16. Cooling air duct. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-5This utility model provides a technical solution: a synchronous demolding bumper production mold that reduces crack generation, including a lower fixed plate 1, with limit rods 2 symmetrically installed on the top surfaces of both ends of the lower fixed plate 1, an upper movable plate 3 slidably sleeved on the outer ring of the limit rods 2, a fixed mold 4 fixedly installed on the top surface of the lower fixed plate 1, and a movable mold 5 fixedly installed on the bottom surface of the upper movable plate 3.

[0025] The design of the above structure allows the upper movable plate 3 and the moving mold 5 to be raised and lowered by an external lifting tool. This facilitates the docking of the moving mold 5 with the fixed mold 4 when it descends, ensuring the sealing of the internal molding cavity. At the same time, it facilitates the separation of the moving mold 5 from the fixed mold 4 when it rises, thereby realizing the demolding of the internally molded bumper. The sliding connection between the upper movable plate 3 and the limiting rod 2 can limit the raising and lowering of the moving mold 5, ensuring the accuracy of the docking between the moving mold 5 and the fixed mold 4.

[0026] The lower fixed plate 1 and the fixed mold 4 are equipped with a multi-point ejection mechanism. The multi-point ejection mechanism includes connecting grooves 6 symmetrically opened at both ends of the fixed mold 4. An ejection block 7 is movably connected inside the connecting groove 6. The size of the connecting groove 6 matches the size of the ejection block 7. A connecting rod 8 is fixedly connected to the bottom surface of the ejection block 7. The connecting rod 8 is slidably connected to the lower fixed plate 1 and the fixed mold 4. The bottom ends of the connecting rods 8 on the left and right sides are respectively fixedly installed with a base plate 9. A return spring 10 is sleeved on the outer ring of the connecting rod 8 between the base plate 9 and the lower fixed plate 1. The base plate 9 and the connecting rod 8 form a telescopic structure with the lower fixed plate 1 through the return spring 10. A linkage rod 11 is slidably connected to both ends of the base plate 9. The top end of the linkage rod 11 is fixedly connected to the moving mold 5.

[0027] The above-described structure design allows the moving mold 5 to descend synchronously with the linkage rod 11 during descent. At this time, the return spring 10 pushes the base plate 9 to descend and reset, which in turn allows the base plate 9 to drive the connecting rod 8 and the ejector block 7 to descend, so that the ejector block 7 fits tightly with the connecting groove 6. This ensures the integrity of the molding cavity when the moving mold 5 is connected to the fixed mold 4, avoiding any impact on the molding effect. After the bumper is formed, the rising of the moving mold 5 drives the linkage rod 11 to rise, which in turn drives the base plate 9 to rise. Then, the base plate 9 drives the connecting rod 8 and the ejector block 7 to rise, causing the ejector block 7 to separate from the connecting groove 6 and perform multi-point ejection and demolding of the formed bumper, improving the demolding effect and efficiency.

[0028] A circulating cooling mechanism is connected inside the lower fixed plate 1 and the fixed mold 4. The circulating cooling mechanism includes a fixed ring 12 fixedly installed at the bottom of the lower fixed plate 1. A suction fan blade 13 is rotatably installed inside the fixed ring 12. A servo motor 14 is connected to the bottom end of the suction fan blade 13. A support frame 15 is fixedly installed on the outer ring of the servo motor 14. The top end of the support frame 15 is fixedly connected to the fixed ring 12. The support frame 15 is distributed at equal angles between the servo motor 14 and the fixed ring 12. A cooling air duct 16 is symmetrically connected to the top end of the fixed ring 12. The cooling air duct 16 is symmetrically embedded inside the lower fixed plate 1 and the fixed mold 4.

[0029] The design of the above structure allows the servo motor 14 to be started, which drives the suction fan blade 13 to rotate inside the fixed ring 12. The suction fan blade 13 generates suction when rotating, and together with the cooling air ducts 16 on both sides, it draws in external air and discharges it through the bottom of the fixed ring 12. This enables the rapid flow of air inside the cooling air ducts 16, allowing the flowing air to exchange heat with the fixed mold 4 and dissipate the heat. This facilitates the rapid cooling of the fixed mold 4 and improves the cooling and molding efficiency of the internal bumper. The support frame 15 provides a stable connection between the servo motor 14 and the fixed ring 12.

[0030] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A synchronous demolding bumper production mold for reducing crack generation, comprising a lower fixing plate (1), characterized in that: Limiting rods (2) are symmetrically installed on the top surfaces of both ends of the lower fixed plate (1). An upper movable plate (3) is slidably sleeved on the outer ring of the limiting rods (2). A fixed mold (4) is fixedly installed on the top surface of the lower fixed plate (1). A moving mold (5) is fixedly installed on the bottom surface of the upper movable plate (3). A multi-point ejection mechanism is installed inside the lower fixed plate (1) and the fixed mold (4). A circulating cooling mechanism is connected inside the lower fixed plate (1) and the fixed mold (4).

2. The synchronous demolding bumper production mold for reducing crack generation according to claim 1, characterized in that: The multi-point ejection mechanism includes connecting grooves (6) symmetrically opened inside both ends of the fixed mold (4). An ejection block (7) is movably connected inside the connecting groove (6). A connecting rod (8) is fixedly connected to the bottom surface of the ejection block (7). A base plate (9) is fixedly installed at the bottom end of the connecting rod (8) on the left and right sides respectively. A return spring (10) is sleeved on the outer ring of the connecting rod (8) between the base plate (9) and the lower fixed plate (1). A linkage rod (11) is connected through both ends of the base plate (9). The top end of the linkage rod (11) is fixedly connected to the moving mold (5).

3. The synchronous demolding bumper production mold for reducing crack generation according to claim 2, characterized in that: The dimensions of the connecting groove (6) match the dimensions of the ejector block (7), and the connecting rod (8) is slidably connected to the lower fixed plate (1) and the fixed mold (4).

4. The synchronous demolding bumper production mold for reducing crack generation according to claim 3, characterized in that: The base plate (9) and the connecting rod (8) form a telescopic structure with the lower fixed plate (1) through the return spring (10), and the linkage rod (11) is slidably connected to both ends of the base plate (9).

5. The synchronous demolding bumper production mold for reducing crack generation according to claim 1, characterized in that: The circulating cooling mechanism includes a fixed ring (12) fixedly installed at the bottom of the lower fixed plate (1). A suction fan blade (13) is rotatably installed inside the fixed ring (12). A servo motor (14) is connected to the bottom end of the suction fan blade (13). A support frame (15) is fixedly installed on the outer ring of the servo motor (14). The top end of the support frame (15) is fixedly connected to the fixed ring (12). Cooling air ducts (16) are symmetrically connected to the top end of the fixed ring (12).

6. The synchronous demolding bumper production mold for reducing crack generation according to claim 5, characterized in that: The support frame (15) is distributed at equal angles between the servo motor (14) and the fixing ring (12), and the cooling air duct (16) is symmetrically embedded inside the lower fixing plate (1) and the fixed mold (4).

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