Movable mold insert with dredging and exhausting functions

Abstract

The utility model discloses a movable mold insert with dredging and exhausting functions, and particularly relates to the technical field of injection molding processing, the movable mold insert comprises two reinforcing rod bodies, the two reinforcing rod bodies are arranged side by side, an injection molding and exhausting assembly is arranged between the two reinforcing rod bodies, and the injection molding and exhausting assembly comprises a plurality of injection molding dredging blocks arranged between the two reinforcing rod bodies. A hollow cavity is formed between the two reinforcing rod bodies. According to the injection molding exhaust assembly, when the exhaust head is in contact with the bottom of the mold, the inclined welt is attached to the inner wall of the exhaust head, so that the exhaust head can be in an inclined state, and air flow in the mold can be conveyed into the air guide inclined pipe through the exhaust head to be exhausted; and the inclined welt is attached to the inner wall of the inclined welt, so that the situation that gas cannot be exhausted due to air pressure difference is avoided.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, and more specifically, to a moving mold insert with venting and drainage functions. Background Technology

[0002] Injection molding is a molding method that combines injection and molding. Its main advantages are high production speed, high efficiency, automated operation, precise product dimensions, and the ability to form complex shapes. It can be used for mass production. During the injection molding process, it is often necessary to expel the gas in the injection molded part; otherwise, "trapped gas" will occur, which will greatly affect the quality of the product, damage the molded product, and affect production efficiency. At this time, venting inserts are installed on the injection mold to expel the gas inside the mold, thereby improving the quality of the injection molded product.

[0003] Among them, the patent with publication number CN213107999U discloses a structure of an injection mold venting insert, including an insert body, a fixing block is provided on one side of the insert body, a rotating rod is provided on one side of the fixing block, a threaded rod that passes through the fixing block is connected to one side of the rotating rod, a butterfly spring is connected to the other side of the fixing block, a main rod is provided on one side of the butterfly spring, a first column is provided on one side of the main rod, a threaded connecting block is connected to one end of the threaded rod, and a connecting surface is provided on the other side of the insert body;

[0004] When in use, this structure, by setting movable columns of different diameters, can achieve good venting during the mold making process. Through the ventilation surface formed by the columns and the interior of the insert body, the venting surface can be effectively vented during injection molding. At the same time, when there are impurities inside the venting surface, the screw rod can drive the column to move and clean out the impurities inside the venting surface, thus improving the efficiency of the venting insert. However, when venting, the ventilation channel is not easy to fully contact the interior of the mold, causing the airflow to easily diffuse and blow onto the model, which can easily affect the injection molding quality of the model. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a moving mold insert with venting and drainage functions, which aims to solve the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: a moving mold insert with venting and drainage, comprising two reinforcing rods arranged side by side, and an injection venting assembly disposed between the two reinforcing rods;

[0007] The injection molding venting assembly includes several injection molding guide blocks disposed between two reinforcing rods, a hollow cavity is formed between the two reinforcing rods, and reinforcing cross plates are provided on both sides of the inner cavity of the hollow cavity;

[0008] The ends of the two reinforcing horizontal plates extend to one side of the corresponding reinforcing rod. Several flow guide oblique openings are provided through the reinforcing horizontal plates, and each flow guide oblique opening is inserted with a gas guide oblique pipe. The bottom end of each of the gas guide oblique pipes is provided with an exhaust head. The gas guide oblique pipes and flow guide oblique openings are all inclined downwards, and each exhaust head has a slanted edge on one side of its bottom.

[0009] As can be seen, in the above technical solution, when the reinforcing rod, injection guide block and reinforcing horizontal plate move downward, they will drive the injection guide block and the air guide pipe to move downward. The air guide pipe first rubs against the mold to guide the reinforcing rod, injection guide block and reinforcing horizontal plate to move downward. At the same time, when the exhaust head contacts the bottom of the mold, the inclined edge is attached to its inner wall. The airflow in the mold can be transported to the air guide pipe through the exhaust head and discharged. The inclined edge is attached to its inner wall to avoid the gas pressure difference that prevents the gas from being discharged.

[0010] Optionally, in a possible implementation, two limiting slots are provided on one side of the reinforcing horizontal plate, and a reinforcing block is engaged in each of the limiting slots. A docking block is fixedly provided on one side of the reinforcing block, and a material guide groove is provided on the docking block. A material guide hole is provided on the top of the injection molding guide block, and the injection molding guide block is located on the top of the docking block. A mold clamping block is provided on one side of the bottom of the reinforcing horizontal plate, and the mold clamping block is fixedly connected to the reinforcing horizontal plate.

[0011] As can be seen, in the above technical solution, the injection material is conveyed into the mold through the guide hole and the injection guide block to guide the material. The injection guide block is installed on the reinforcing rod and the reinforcing horizontal plate by interlocking with the reinforcing block and the limiting slot, which makes it easy for the staff to disassemble and maintain each structure and improves the convenience of the device during use.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] By setting up an injection molding venting component, compared with the existing technology, the overall design is simple and the structure is reasonable. Through the corresponding cooperation of each structure, when the venting head contacts the bottom of the mold, the inclined edge fits against its inner wall, so that the venting head can be in an inclined state. The airflow in the mold can be delivered to the air guide pipe through the venting head and discharged. The inclined edge fits against its inner wall to avoid the gas pressure difference that prevents the gas from being discharged.

[0014] Furthermore, during injection molding, the injection material is conveyed into the mold through the guide hole and the injection guide block to guide the material. The injection guide block is installed on the reinforcing rod and reinforcing horizontal plate by interlocking with the reinforcing clip and the limiting slot, which makes it easy for the staff to disassemble and maintain each structure and improves the convenience of the device during use. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0016] Figure 1 This is a front view of the overall structure of this utility model.

[0017] Figure 2 This is a side view of the overall structure of this utility model.

[0018] Figure 3 This is a perspective view of the reinforcing rod and reinforcing cross plate of this utility model.

[0019] Figure 4 This is a perspective view of the docking block, injection-molded guide block, and reinforcing clip of this utility model.

[0020] The attached diagram is labeled as follows: 1. Reinforcing rod; 2. Injection guide block; 3. Hollow cavity; 4. Reinforcing horizontal plate; 5. Limiting slot; 6. Flow guide oblique opening; 7. Air guide oblique pipe; 8. Exhaust head; 9. Angled edge; 10. Reinforcing block; 11. Butt joint block; 12. Material guide groove; 13. Material guide hole; 14. Mold block. Detailed Implementation

[0021] 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.

[0022] As attached Figure 1-4 The moving mold insert with venting and drainage shown has an injection venting assembly on the reinforcing rod 1. When the reinforcing rod 1, injection venting block 2, and reinforcing horizontal plate 4 move downward, they will drive the injection venting block 2 and the venting pipe 7 to move downward. The venting pipe 7 first rubs against the mold to guide the reinforcing rod 1, injection venting block 2, and reinforcing horizontal plate 4 as they move downward. At the same time, when the venting head 8 contacts the bottom of the mold, the inclined edge 9 is attached to its inner wall. The airflow in the mold can be delivered to the venting pipe 7 through the venting head 8 and discharged. The inclined edge 9 is attached to its inner wall to avoid pressure differences that would prevent gas from being discharged. The specific structural settings of the assembly are as follows.

[0023] The injection venting assembly includes several injection venting blocks 2 disposed between two reinforcing rods 1, a hollow cavity 3 is formed between the two reinforcing rods 1, and reinforcing cross plates 4 are provided on both sides of the inner cavity of the hollow cavity 3.

[0024] The ends of the two reinforcing horizontal plates 4 extend to one side of the corresponding reinforcing rod 1. Several flow guide oblique ports 6 are opened through the reinforcing horizontal plates 4, and each flow guide oblique port 6 is inserted with a gas guide oblique pipe 7. The bottom end of each gas guide oblique pipe 7 is provided with an exhaust head 8. The gas guide oblique pipe 7 and the flow guide oblique port 6 are both inclined downwards, and each exhaust head 8 has a slanted edge 9 on one side of its bottom.

[0025] Two limiting slots 5 are provided on one side of the reinforcing horizontal plate 4, and a reinforcing block 10 is engaged in each limiting slot 5. A docking block 11 is fixedly provided on one side of the reinforcing block 10. A material guide groove 12 is provided on the docking block 11. A material guide hole 13 is provided on the top of the injection molding guide block 2. The injection molding guide block 2 is located on the top of the docking block 11. A mold block 14 is provided on one side of the bottom of the reinforcing horizontal plate 4. The mold block 14 is fixedly connected to the reinforcing horizontal plate 4.

[0026] According to the above structure, when in use, the operator installs the device on the top of the mold. During injection molding, when the reinforcing rod 1, injection guide block 2, and reinforcing horizontal plate 4 move downward, they will drive the injection guide block 2 and the air guide pipe 7 to move downward. The air guide pipe 7 first rubs against the mold to guide the reinforcing rod 1, injection guide block 2, and reinforcing horizontal plate 4 as they move downward. At the same time, when the exhaust head 8 contacts the bottom of the mold, the inclined edge 9 is attached to its inner wall. The airflow in the mold can be delivered to the air guide pipe 7 through the exhaust head 8 and discharged. The inclined edge 9 is attached to its inner wall to avoid the gas pressure difference that prevents the gas from being discharged.

[0027] Furthermore, during injection molding, the injection material is conveyed into the mold through the guide hole 13 and the injection guide block 2 to guide the material. The injection guide block 2 is installed on the reinforcing rod 1 and the reinforcing cross plate 4 by interlocking with the reinforcing block 10 and the limiting slot 5, which makes it easy for the staff to disassemble and maintain each structure and improves the convenience of the device during use.

[0028] Unlike existing technologies, this application discloses a moving mold insert with venting and drainage functions. When the reinforcing rod 1, injection guide block 2, and reinforcing horizontal plate 4 move downward, they will drive the injection guide block 2 and the venting pipe 7 to move downward. The venting pipe 7 first rubs against the mold to guide the reinforcing rod 1, injection guide block 2, and reinforcing horizontal plate 4 as they move downward. At the same time, when the exhaust head 8 contacts the bottom of the mold, the inclined edge 9 adheres to its inner wall. The airflow inside the mold can be transported to the venting pipe 7 through the exhaust head 8 and discharged. The adherence of the inclined edge 9 to its inner wall avoids pressure differences that could prevent gas from being discharged.

[0029] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A moving mold insert with venting and drainage functions, comprising two reinforcing rods (1), characterized in that: The two reinforcing rods (1) are arranged side by side, and an injection molding venting assembly is provided between the two reinforcing rods (1); The injection venting assembly includes a plurality of injection venting blocks (2) disposed between two reinforcing rods (1), a hollow cavity (3) is formed between the two reinforcing rods (1), and reinforcing cross plates (4) are provided on both sides of the inner cavity of the hollow cavity (3). The ends of the two reinforcing horizontal plates (4) extend to one side of the corresponding reinforcing rod (1). Several flow guide oblique ports (6) are opened through the reinforcing horizontal plates (4), and each flow guide oblique port (6) is inserted with a gas guide oblique pipe (7). The bottom end of the multiple gas guide oblique pipes (7) is provided with an exhaust head (8).

2. The moving mold insert with venting and drainage function according to claim 1, characterized in that: The air guide pipe (7) and the flow guide inlet (6) are both inclined downwards, and each of the exhaust heads (8) has an inclined edge (9) on one side of its bottom.

3. The moving mold insert with venting and drainage function according to claim 1, characterized in that: Two limiting slots (5) are provided on one side of the reinforcing horizontal plate (4), and each of the limiting slots (5) is fitted with a reinforcing block (10).

4. The moving mold insert with venting and drainage function according to claim 3, characterized in that: A docking block (11) is fixedly provided on one side of the reinforcing block (10), and a guide groove (12) is provided on the docking block (11).

5. The moving mold insert with venting and drainage function according to claim 1, characterized in that: The injection molding guide block (2) has a material guide hole (13) on its top, and the injection molding guide block (2) is located on top of the docking block (11).

6. The moving mold insert with venting and drainage function according to claim 1, characterized in that: A mold block (14) is provided on one side of the bottom of the reinforcing horizontal plate (4), and the mold block (14) is fixedly connected to the reinforcing horizontal plate (4).

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