Automobile tail lamp injection mold capable of improving demolding stress uniformity

Abstract

The utility model provides an automobile tail lamp injection mold capable of improving demolding stress uniformity, and relates to the technical field of injection molds. According to the device, by arranging the structures such as the preformed hole, the empty groove, the lead screw, the sliding plate, the cylinder, the push plate, the first gear, the motor and the second gear, the second gear is driven by the motor to rotate, the first gear is driven to rotate in the rotating process of the second gear, and the lead screw is driven to rotate in the rotating process of the first gear; the lead screw can drive a sliding plate to slide upwards in an empty groove in the rotating process, the sliding plate can drive a cylinder to slide upwards in a reserved hole in the upward sliding process, and the cylinder can drive a push plate to slide upwards in a mold groove in the upward sliding process. And after sliding for a certain distance, the push plate can uniformly push out the formed workpiece, so that the demolding efficiency of the workpiece is improved, manual operation during demolding is effectively avoided, and convenience is brought to operators.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold for automobile taillights which can improve the uniformity of demoulding force. Background Art

[0002] An injection mold is a tool for producing plastic products, and is also a tool for giving plastic products a complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain parts with complex shapes. Specifically, it refers to the high-pressure injection of heated and melted plastic into the mold cavity by an injection molding machine, and after cooling and solidification, a molded product is obtained. When producing automobile taillights, injection molds are required for processing. Publication No. CN219686399U discloses an injection mold for automobile taillight shades, including a mold body, the mold body including a lower mold and an upper mold, a molding chamber is opened inside the lower mold, a limiting sleeve is fixed on the top of the mold body, the lower mold is sleeved inside the limiting sleeve and connected to the limiting sleeve through a limiting assembly. The automobile taillight lampshade injection mold is used in combination by setting a limit sleeve and a limit assembly. The limit sleeve can position the lower mold to ensure that the lower mold can correspond to the upper mold, and under the action of the limit assembly, it can be easily fixed to the mold body, thereby achieving a better replacement effect, and conveniently adjusting and using molding chambers of different sizes, expanding the use range of the equipment, and facilitating the production and use of automobile taillight lampshades of different sizes. However, the injection mold is not provided with an automatic demolding mechanism, which results in the operator manually picking the molded workpiece out of the molding chamber during demolding, thereby reducing the demolding efficiency of the workpiece. The injection mold still has shortcomings and needs to be improved. Utility Model Content

[0003] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0004] The utility model adopts the following technical scheme: an injection mold for automobile taillights capable of improving the uniformity of demoulding force, comprising a fixed mold, columns are symmetrically fixedly installed on the top of the fixed mold, a top plate is fixedly installed on the top of the columns, a hydraulic cylinder is fixedly installed on the top of the top plate, a movable mold is fixedly installed on the output end of the hydraulic cylinder, a connecting pipe is fixedly installed on one side of the movable mold, a mold groove is provided on the top of the fixed mold, a reserved hole is penetrated through the inner surface of the mold groove, an empty groove is provided inside the fixed mold, a screw rod is installed inside the empty groove, a slide plate is threadedly connected to the outer wall of the screw rod, a cylinder is fixedly installed on the top of the slide plate, a push plate is fixedly installed on the top of the cylinder, a gear 1 is fixedly installed on the outer wall of the screw rod, a motor is fixedly installed inside the fixed mold, and a gear 2 is fixedly installed on the output end of the motor.

[0005] Preferably, the movable mold is slidably connected to the mold groove, and the movable mold is slidably connected to the pillar. Here, the injection molding effect of the automobile taillight is improved by the sliding connection between the movable mold and the mold groove, and the limiting effect of the movable mold is improved by the sliding connection between the movable mold and the pillar.

[0006] Preferably, the gear 1 and the gear 2 are meshed with each other, and the screw rod and the fixed mold are connected via a bearing. Here, the rotation effect of the screw rod is improved by meshing with each other, and the rotation effect of the screw rod is improved by connecting with the bearing.

[0007] Preferably, the slide plate is slidably connected to the empty slot, and the cylinder is slidably connected to the reserved hole. Here, the sliding connection between the slide plate and the empty slot improves the limiting effect of the slide plate, and the sliding connection between the cylinder and the reserved hole improves the up and down adjustment effect of the cylinder.

[0008] Preferably, the push plate is slidably connected to the die groove. Here, the upward and downward adjustment effect of the push plate is improved by the slidable connection.

[0009] Preferably, the top of the movable mold is symmetrically fixed with a connecting column, the top of the connecting column is fixed with a limiting ring, the outer wall of the connecting column is sleeved with a buffer spring, and the top of the top plate is symmetrically penetrated with a sliding hole. Here, by starting the hydraulic cylinder to drive the movable mold to slide downward on the outer wall of the column, the movable mold will slide downward in the sliding hole during the downward sliding process, and the connecting column will drive the limiting ring to compress the buffer spring toward the surface of the top plate during the downward sliding process. In the process of compressing the buffer spring, the movable mold can be buffered, thereby effectively preventing the movable mold from falling rapidly and reducing the safety during injection molding.

[0010] Preferably, the sliding hole is slidably connected to the connecting column, the top end of the buffer spring is fixedly connected to the limiting ring, and the bottom end of the buffer spring is fixedly connected to the top plate. Here, the use effect of the buffer spring is improved by the fixed connection.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, a reserved hole, an empty slot, a screw rod, a slide plate, a cylinder, a push plate, a gear one, a motor and a gear two are provided. The motor drives the gear two to rotate. The gear two drives the gear one to rotate during the rotation. The gear one drives the screw rod to rotate during the rotation. The screw rod drives the slide plate to slide upward inside the empty slot during the rotation. The slide plate drives the cylinder to slide upward inside the reserved hole during the upward sliding. The cylinder drives the push plate to slide upward inside the die slot during the upward sliding. After sliding a certain distance, the push plate will push out the formed workpiece evenly, thereby improving the demolding efficiency of the workpiece, effectively avoiding the need for manual operation during demolding, and facilitating the use of operators.

[0013] 2. In the utility model, by setting up structures such as connecting columns, limiting rings, buffer springs and sliding holes, the hydraulic cylinder is started to drive the movable mold to slide downward on the outer wall of the column. In the process of sliding downward, the movable mold will cause its connecting column to slide downward inside the sliding hole. In the process of sliding downward, the connecting column will drive the limiting ring to compress the buffer spring toward the surface of the top plate. In the process of compressing the buffer spring, the movable mold can be buffered, thereby effectively preventing the movable mold from falling rapidly and reducing the safety during injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a schematic diagram of the overall structure of an injection mold for a car taillight that can improve the uniformity of demoulding force;

[0015] Figure 2 A side view of an injection mold for a car taillight that can improve the uniformity of demoulding force is provided for the utility model;

[0016] Figure 3 A cross-sectional view of an injection mold for a car taillight that can improve the uniformity of demoulding force is provided for the utility model;

[0017] Figure 4 The utility model provides a partial exploded structural schematic diagram of an injection mold for a car taillight which can improve the uniformity of demoulding force.

[0018] Legend:

[0019] 1. Fixed mold; 2. Column; 3. Top plate; 4. Hydraulic cylinder; 5. Moving mold; 6. Connecting pipe; 7. Mold groove; 8. Reserved hole; 9. Empty groove; 10. Screw; 11. Slide plate; 12. Cylinder; 13. Push plate; 14. Gear 1; 15. Motor; 16. Gear 2; 17. Connecting column; 18. Limiting ring; 19. Buffer spring; 20. Sliding hole. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] Embodiment 1

[0023] See also Figure 1-3 The utility model provides a technical solution: an injection mold for automobile taillights that can improve the uniformity of demoulding force, comprising a fixed mold 1, a column 2 is symmetrically fixedly installed on the top of the fixed mold 1, a top plate 3 is fixedly installed on the top of the column 2, a hydraulic cylinder 4 is fixedly installed on the top of the top plate 3, a movable mold 5 is fixedly installed on the output end of the hydraulic cylinder 4, a connecting pipe 6 is fixedly installed on one side of the movable mold 5, a mold groove 7 is opened on the top of the fixed mold 1, a reserved hole 8 is opened through the inner surface of the mold groove 7, an empty groove 9 is opened inside the fixed mold 1, a screw rod 10 is installed inside the empty groove 9, a slide plate 11 is threadedly connected to the outer wall of the screw rod 10, a cylinder 12 is fixedly installed on the top of the slide plate 11, a push plate 13 is fixedly installed on the top of the cylinder 12, a gear 14 is fixedly installed on the outer wall of the screw rod 10, a motor 15 is fixedly installed inside the fixed mold 1, and a gear 2 16 is fixedly installed on the output end of the motor 15. By setting up structures such as reserved holes 8, empty slots 9, screw rods 10, slide plates 11, cylinders 12, push plates 13, gear one 14, motors 15 and gear two 16, the motor 15 drives gear two 16 to rotate, and gear two 16 will drive gear one 14 to rotate during the rotation process, and gear one 14 will drive screw rods 10 to rotate during the rotation process, and screw rods 10 will drive slide plates 11 to slide upward inside the empty slots 9 during the rotation process, and slide plates 11 will drive cylinders 12 to slide upward inside the reserved holes 8 during the upward sliding process, and cylinders 12 will drive push plates 13 to slide upward inside the mold slots 7 during the upward sliding process, and after sliding a certain distance, push plates 13 will push out the formed workpiece evenly, thereby improving the demoulding efficiency of the workpiece, effectively avoiding the need for manual operation during demoulding, and facilitating use by operators.

[0024] See also Figure 1-3The movable mold 5 is slidably connected to the mold groove 7, and the injection molding effect of the automobile taillight is improved by the sliding connection between the movable mold 5 and the mold groove 7. The movable mold 5 is slidably connected to the column 2, and the limiting effect of the movable mold 5 is improved by the sliding connection between the movable mold 5 and the column 2. The gear 14 and the gear 2 16 are meshed with each other, and the rotation effect of the screw rod 10 is improved by meshing with each other. The screw rod 10 is connected to the fixed mold 1 through a bearing, and the rotation effect of the screw rod 10 is improved by the bearing connection. The slide plate 11 is slidably connected to the empty groove 9, and the limiting effect of the slide plate 11 is improved by the sliding connection between the slide plate 11 and the empty groove 9. The cylinder 12 is slidably connected to the reserved hole 8, and the up and down adjustment effect of the cylinder 12 is improved by the sliding connection between the cylinder 12 and the reserved hole 8. The push plate 13 is slidably connected to the mold groove 7, and the up and down adjustment effect of the push plate 13 is improved by the sliding connection.

[0025] Embodiment 2

[0026] See also Figure 4 , a connecting column 17 is symmetrically fixedly installed on the top of the movable mold 5, and a limiting ring 18 is fixedly installed on the top of the connecting column 17. A buffer spring 19 is sleeved on the outer wall of the connecting column 17, and a sliding hole 20 is symmetrically penetrated on the top of the top plate 3. By starting the hydraulic cylinder 4, the movable mold 5 is driven to slide downward on the outer wall of the column 2. In the process of sliding downward, the movable mold 5 will make its connecting column 17 slide downward inside the sliding hole 20. In the process of sliding downward, the connecting column 17 will drive the limiting ring 18 to compress the buffer spring 19 toward the surface of the top plate 3. In the process of compressing the buffer spring 19, the movable mold 5 can be buffered, thereby effectively preventing the movable mold 5 from falling rapidly and reducing the safety during injection molding. The sliding hole 20 is slidably connected to the connecting column 17, the top end of the buffer spring 19 is fixedly connected to the limiting ring 18, and the bottom end of the buffer spring 19 is fixedly connected to the top plate 3. The use effect of the buffer spring 19 is improved through the fixed connection.

[0027] Working principle: when in use, first start the hydraulic cylinder 4, so that it drives the movable mold 5 to slide downward on the outer wall of the column 2. During the downward sliding process of the movable mold 5, the connecting column 17 will slide downward inside the sliding hole 20. During the downward sliding process of the connecting column 17, the limiting ring 18 will be driven to compress the buffer spring 19 toward the surface of the top plate 3. In the process of compressing the buffer spring 19, the movable mold 5 can be buffered, thereby effectively preventing the movable mold 5 from falling quickly and reducing the safety during injection molding. After the movable mold 5 is moved to fit with the fixed mold 1, the injection molding raw material is transported from the connecting pipe 6 to the mold groove 7. After transportation, wait for the raw material to cool and form. After cooling and forming, start again The dynamic hydraulic cylinder 4 restores the movable mold 5 to its original position, and then starts the motor 15, which drives the gear 2 16 to rotate. The gear 2 16 will drive the gear 1 14 to rotate during the rotation, and the gear 1 14 will drive the screw rod 10 to rotate during the rotation. The screw rod 10 will drive the slide plate 11 to slide upward inside the empty groove 9 during the rotation. The slide plate 11 will drive the cylinder 12 to slide upward inside the reserved hole 8 during the upward sliding process. The cylinder 12 will drive the push plate 13 to slide upward inside the mold groove 7 during the upward sliding process. After sliding a certain distance, the push plate 13 will push out the formed workpiece evenly, thereby improving the demolding efficiency of the workpiece.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An injection mold for automobile taillights capable of improving uniform demoulding force, comprising a fixed mold (1), characterized in that: The top of the fixed mold (1) is symmetrically fixedly mounted with a column (2), the top of the column (2) is fixedly mounted with a top plate (3), the top of the top plate (3) is fixedly mounted with a hydraulic cylinder (4), the output end of the hydraulic cylinder (4) is fixedly mounted with a movable mold (5), one side of the movable mold (5) is fixedly mounted with a connecting pipe (6), the top of the fixed mold (1) is provided with a mold groove (7), the inner surface of the mold groove (7) is penetrated with a reserved hole (8), and the interior of the fixed mold (1) is provided with a An empty slot (9), a screw rod (10) is installed inside the empty slot (9), a slide plate (11) is threadedly connected to the outer wall of the screw rod (10), a cylinder (12) is fixedly installed on the top of the slide plate (11), a push plate (13) is fixedly installed on the top of the cylinder (12), a gear 1 (14) is fixedly installed on the outer wall of the screw rod (10), a motor (15) is fixedly installed inside the fixed mold (1), and a gear 2 (16) is fixedly installed on the output end of the motor (15).

2. The automobile taillight injection mold capable of improving demoulding force uniformity according to claim 1, characterized in that: The movable mold (5) is slidably connected to the mold groove (7), and the movable mold (5) is slidably connected to the column (2).

3. The automobile taillight injection mold capable of improving demoulding force uniformity according to claim 1, characterized in that: The gear one (14) and the gear two (16) are meshed with each other, and the screw rod (10) and the fixed mold (1) are connected via a bearing.

4. The automobile taillight injection mold capable of improving demoulding force uniformity according to claim 1, characterized in that: The slide plate (11) is slidably connected to the empty groove (9), and the cylinder (12) is slidably connected to the reserved hole (8).

5. The automobile taillight injection mold capable of improving demoulding force uniformity according to claim 1, characterized in that: The push plate (13) is slidably connected to the die groove (7).

6. The automobile taillight injection mold capable of improving demoulding force uniformity according to claim 1, characterized in that: A connecting column (17) is symmetrically fixedly installed on the top of the movable mold (5), a limiting ring (18) is fixedly installed on the top of the connecting column (17), a buffer spring (19) is sleeved on the outer wall of the connecting column (17), and a sliding hole (20) is symmetrically opened and penetrated through the top of the top plate (3).

7. The automobile taillight injection mold capable of improving demoulding force uniformity according to claim 6, characterized in that: The sliding hole (20) is slidably connected to the connecting column (17), the top end of the buffer spring (19) is fixedly connected to the limiting ring (18), and the bottom end of the buffer spring (19) is fixedly connected to the top plate (3).

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