Lamp shell die casting equipment capable of eliminating air holes

Abstract

The invention relates to the technical field of die casting equipment, in particular to lamp shell die casting equipment capable of eliminating air holes, which comprises a base, a bracket is fixedly mounted on the surface of the base, three groups of linearly distributed cylinders are mounted at the top of the bracket, and a material injection head, a movable die and a fixed plate are fixedly mounted at the output ends of the cylinders respectively; a suction cup is fixedly installed on the bottom face of the fixing plate. According to the die-casting die, through cooperation of the sliding blocks and the sliding rails, the stability of the fixed die structure is further enhanced, air retention in a die cavity or gas mixing into a die-casting piece caused by die shaking is prevented, in the die-casting process, the pump body on the movable die side communicates with the exhaust groove in the fixed die through the connecting pipe, redundant gas in the die can be exhausted in time, and the die-casting quality is improved. Not only can gas in the die cavity be quickly exhausted, but also the sealing performance and the density of a finished product are greatly improved, so that the problem of air hole defects on the surface and inside of the product is obviously reduced.

Description

Technical Field

[0001] The invention relates to the technical field of die casting equipment, and in particular to a lamp housing die casting equipment capable of eliminating pores. Background Art

[0002] The LED lamp is an electroluminescent semiconductor material chip, which is cured to the bracket with silver glue or white glue, and then connected to the chip and circuit board with silver wire or gold wire. It is sealed with epoxy resin on all sides to protect the internal core wire, and finally the shell is installed. Therefore, the LED lamp has good seismic performance. The LED lamp shell is made of blister acrylic board, which absorbs light very evenly, so the light emitted through the acrylic board is very soft and the color is very pure. Mold die-casting equipment is required when making the LED lamp shell.

[0003] The traditional die-casting method often lacks an effective exhaust channel during operation, which makes it difficult for the gas in the mold to be quickly discharged, and easily forms pores in the finished product, thus affecting the density and appearance quality of the finished product. The pore problem is particularly prominent in products such as lamp housings that have high requirements for appearance and sealing. The presence of pores may cause problems such as air leakage and water leakage in the lamp housing during use, thus affecting the reliability and service life of the product. Summary of the invention

[0004] The purpose of the present invention is to solve the technical problems raised in the above background technology.

[0005] The present invention adopts the following technical scheme: a lamp housing mold die-casting device capable of eliminating air holes, comprising a base, a bracket fixedly installed on the surface of the base, three groups of linearly distributed cylinders installed on the top of the bracket, injection heads, movable molds and fixed plates fixedly installed on the output ends of the cylinders, respectively, a suction cup fixedly installed on the bottom surface of the fixed plate, a slide groove is provided on the surface of the base, a driving block is slidably connected inside the slide groove, a fixed mold is fixedly installed on the surface of the driving block, a pump body is fixedly installed on the side of the movable mold, a connecting pipe is fixedly installed on the output end of the pump body, an exhaust groove is provided inside the fixed mold, and one end of the connecting pipe extending out of the movable mold corresponds to the notch of the exhaust groove.

[0006] Preferably, a motor is fixedly mounted on the side of the base, a screw is fixedly mounted on the output end of the motor, the screw is rotatably connected inside the slide slot, and the drive block is threadedly connected on the surface of the screw. Here, the drive block is driven by the motor to move, so that the fixed mold moves on the surface of the base, so that the fixed mold can cooperate with the cylinder in different operation steps during the die-casting process, thereby simplifying the process of injection, die-casting and material removal, and facilitating the operation of personnel.

[0007] Preferably, a slider is fixedly mounted on the side of the fixed die, a slide rail is fixedly mounted on the surface of the base, and the slider slides on the surface of the slide rail. Here, the stability of the fixed die structure is enhanced, and the possibility of the fixed die shaking during operation is reduced, effectively avoiding the problem of pore formation caused by the displacement of the fixed die, and ensuring the surface quality of the die casting.

[0008] Preferably, the connection between the connecting pipe and the movable mold and the fixed mold is provided with a cushion. Here, the connection between the connecting pipe and the movable mold and the fixed mold is provided with a cushion, which plays a buffering role, reduces the vibration and impact during the die-casting process, effectively prevents the leakage of the mold joint, ensures the smooth flow of the exhaust channel, thereby reducing the generation of pores and improving the sealing of the product.

[0009] Preferably, a circular groove is provided inside the fixed mold, a cylinder is rotatably connected inside the circular groove, a rotating head is fixedly installed on one end of the cylinder located outside the fixed mold, a through hole and a circular hole are provided on the surface of the cylinder, the through hole is connected to the circular hole, and a through groove is provided on the surface of the fixed mold, the through groove is connected to the circular groove. Here, the cylinder is rotated by the rotating head so that the through hole on the cylinder and the circular hole are connected to the through groove, which can make the exhaust smoother, so that during the material removal process, the space inside the mold is connected to the outside, avoiding the generation of vacuum between the molded part and the fixed mold, which affects the efficiency of material removal.

[0010] Preferably, a limit ring is fixedly installed on the surface of the cylinder, a limit groove is provided inside the circular groove, and the limit block rotates inside the limit groove. Here, the position of the cylinder can be stabilized to avoid its displacement during the exhaust process, making the exhaust process more stable and accurate, and avoiding misalignment between the circular hole and the through groove.

[0011] Preferably, a protrusion is fixedly mounted on the surface of the rotating head, a screw is inserted inside the protrusion, a screw hole is opened on the side of the fixed mold, and the screw is threadedly connected inside the screw hole. Here, the rotating head is more firm and stable during operation, which helps to stably connect the round hole and the through slot, thereby ensuring the consistency of the material taking process and improving the efficiency of material taking.

[0012] Preferably, the diameter of the circular hole is consistent with that of the through groove, and the circular hole and the through groove are on the same axis. Here, the smoothness of the exhaust passage is ensured, and air can be effectively prevented from encountering obstacles during the flow process, thereby reducing the formation of vacuum in the mold cavity of the mold.

[0013] Preferably, a condensation box is fixedly installed on the side of the fixed mold, a condensation groove is opened at the bottom of the molding groove of the fixed mold, and the condensation box is connected to the condensation groove. Here, it is helpful to cool the high temperature generated in the mold, so that the injected material condenses more quickly, improves the molding efficiency of the molded part, and enables personnel to quickly take out the material.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are: 1. In the present invention, the stability of the fixed mold structure is further enhanced by the cooperation of the slider and the slide rail, which prevents air from being trapped in the mold cavity or gas from mixing into the die-casting due to the shaking of the mold. During the die-casting process, the pump body on the movable mold side is connected to the exhaust groove in the fixed mold through the connecting pipe, so that the excess gas in the mold can be discharged in time, which not only ensures that the gas in the mold cavity can be quickly discharged, but also greatly improves the sealing and density of the finished product, thereby significantly reducing the problem of pore defects on the surface and inside of the product.

[0015] 2. In the present invention, a structure combining a rotating head and a cylinder is adopted to connect the mold cavity with the external environment, avoiding the formation of vacuum between the molded part and the mold, making the exhaust in the material removal process smoother, ensuring that no vacuum is formed in the finished product during the removal process, and improving the operating efficiency and product consistency.

[0016] 3. In the present invention, by connecting the condensation box and the condensation tank, the molded part can be quickly cooled and condensed to form quickly, thereby improving the die-casting efficiency. It not only reduces the possibility of residual pores on the surface of the molded part, but also makes it easier for operators to complete the removal of the molded part more quickly, thereby significantly improving the production efficiency and the density of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a lamp housing mold die-casting device capable of eliminating air holes is provided for the present invention; Figure 2 A bottom view of a lamp housing mold die-casting device capable of eliminating air holes is provided for the present invention; Figure 3 A partial schematic diagram of a movable die of a lamp housing die casting device capable of eliminating air holes is provided in the present invention; Figure 4 A bottom view of a fixed die of a lamp housing die casting device capable of eliminating air holes is provided for the present invention; Figure 5 A cross-sectional view of a fixed die of a lamp housing die casting device capable of eliminating air holes is provided for the present invention; Figure 6 A schematic diagram of a cylinder of a lamp housing mold die-casting device capable of eliminating air holes is provided for the present invention; Figure 7 The present invention provides a bottom view of a lamp housing mold die-casting device capable of eliminating air holes.

[0018] Legend: 1. Base; 2. Slide; 3. Drive block; 4. Fixed mold; 5. Slide rail; 6. Slider; 7. Motor; 8. Screw; 9. Bracket; 10. Cylinder; 11. Injection head; 12. Moving mold; 13. Fixed plate; 14. Suction cup; 15. Pump body; 16. Connecting pipe; 17. Cushion; 18. Exhaust groove; 19. Round groove; 20. Through groove; 21. Limit groove; 22. Screw hole; 23. Cylinder; 24. Rotating head; 25. Limit ring; 26. Through hole; 27. Round hole; 28. Bump; 29. ​​Screw; 30. Condensate groove; 31. Condensate box. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention 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.

[0020] 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. Example 1

[0021] See also Figure 1-5The present invention provides a technical solution: a lamp housing mold die-casting device capable of eliminating pores, comprising a base 1, a bracket 9 is fixedly installed on the surface of the base 1, three groups of linearly distributed cylinders 10 are installed on the top of the bracket 9, an injection head 11, a movable mold 12 and a fixed plate 13 are fixedly installed on the output ends of the cylinders 10, and a suction cup 14 is fixedly installed on the bottom surface of the fixed plate 13. A slide groove 2 is provided on the surface of the base 1, a driving block 3 is slidably connected inside the slide groove 2, and a fixed mold 4 is fixedly installed on the surface of the driving block 3. A motor 7 is fixedly installed on the side of the base 1, a screw rod 8 is fixedly installed on the output end of the motor 7, the screw rod 8 is rotatably connected inside the slide groove 2, and the driving block 3 is threadedly connected on the surface of the screw rod 8. The driving block 3 is driven by the motor 7 to move, so that the fixed mold 4 moves on the surface of the base 1, so that the fixed mold 4 can cooperate with the cylinders 10 in different operation steps during the die-casting process, thereby simplifying the process of injection, die-casting and material removal, and facilitating Personnel operate, a slider 6 is fixedly installed on the side of the fixed mold 4, and a slide rail 5 is fixedly installed on the surface of the base 1. The slider 6 slides on the surface of the slide rail 5, which enhances the stability of the fixed mold 4 structure. In addition, the possibility of shaking of the fixed mold 4 during operation is reduced, and the problem of pore formation caused by the displacement of the fixed mold 4 is effectively avoided, thereby ensuring the surface quality of the die-casting. A pump body 15 is fixedly installed on the side of the movable mold 12, and a connecting pipe 16 is fixedly installed on the output end of the pump body 15. An exhaust groove 18 is opened inside the fixed mold 4, and one end of the connecting pipe 16 extending out of the movable mold 12 corresponds to the notch of the exhaust groove 18. A cushion 17 is sleeved at the connection between the connecting pipe 16 and the movable mold 12 and the fixed mold 4. The cushion 17 is installed at the connection between the connecting pipe 16 and the movable mold 12 and the fixed mold 4, which plays a buffering role, reduces vibration and impact during the die-casting process, effectively prevents air leakage at the mold joint, ensures that the exhaust channel is unobstructed, thereby reducing pore generation and improving the sealing of the product. Example 2

[0022] See also Figure 4-7A circular groove 19 is provided inside the fixed mold 4, and a cylinder 23 is rotatably connected inside the circular groove 19. A rotating head 24 is fixedly installed on one end of the cylinder 23 located outside the fixed mold 4. A through hole 26 and a circular hole 27 are provided on the surface of the cylinder 23. The through hole 26 is connected to the circular hole 27. A through groove 20 is provided on the surface of the fixed mold 4. The through groove 20 is connected to the circular groove 19. The cylinder 23 is rotated by the rotating head 24 so that the through hole 26 and the circular hole 27 on the cylinder 23 are connected. The through groove 20 can make the exhaust smoother, so that during the material taking process, the space in the mold is connected to the outside to avoid vacuum between the molded part and the fixed mold 4, which affects the efficiency of material taking. A limiting ring 25 is fixedly installed on the surface of the cylinder 23, and a limiting groove 21 is provided inside the circular groove 19. The limiting block rotates inside the limiting groove 21. It can stabilize the position of the cylinder 23 and avoid its displacement during the exhaust process, making the exhaust process more stable and accurate, and avoiding misalignment between the circular hole 27 and the through slot 20. A protrusion 28 is fixedly installed on the surface of the rotating head 24, and a screw 29 is inserted inside the protrusion 28. A screw hole 22 is opened on the side of the fixed mold 4, and the screw 29 is threadedly connected inside the screw hole 22, so that the rotating head 24 is more firm and stable during operation, which helps to stably connect the circular hole 27 and the through slot 20, thereby ensuring the consistency of the material taking process and improving the efficiency of material taking. The circular hole 27 has the same diameter as the through slot 20, and the circular hole 27 and the through slot 20 are on the same axis, ensuring the smoothness of the exhaust channel, and can effectively avoid air encountering obstacles during the flow process, thereby reducing the formation of vacuum in the mold cavity of the mold. Example 3

[0023] See also Figure 4-5 A condensation box 31 is fixedly installed on the side of the fixed mold 4, and a condensation groove 30 is opened at the bottom of the molding groove of the fixed mold 4. The condensation box 31 is communicated with the condensation groove 30, which helps to cool the high temperature generated in the mold, so that the injected material can condense more quickly, thereby improving the efficiency of the molded parts, so that personnel can quickly take out the materials.

[0024] Working principle: When in use, the cylinder 10 drives the injection head 11 to move, so that the raw material is injected into the fixed mold 4 through the injection head 11, and then the output end of the motor 7 drives the driving block 3 to move in the slide groove 2, and the driving block 3 drives the fixed mold 4 to move on the surface of the base 1. When it moves to the bottom of the movable mold 12, the cylinder 10 drives the movable mold 12 to die-cast the fixed mold 4, so that the raw material is formed in the fixed mold 4. During this process, the connecting pipe 16 located on the movable mold 12 is inserted into the exhaust groove 18. By arranging a cushion 17 at the connection, leakage during the exhaust process can be avoided, which affects the effect of raw material molding, so that the gas generated during the die-casting process between the movable mold 12 and the fixed mold 4 can be extracted by using the pump body 15. , the die-casting process is over, and the condensate inside the condensation box 31 circulates through the condensation tank 30 at the bottom of the molding groove of the fixed mold 4, which can improve the cooling efficiency of the molded part and facilitate the subsequent material removal efficiency of the molded part. After cooling, the fixed mold 4 moves to the bottom of the suction cup 14, unscrew the screw 29 from the screw hole 22, and then rotate the rotating head 24, which drives the cylinder 23 to rotate in the circular groove 19. At this time, the circular hole 27 on the cylinder 23 is connected to the through groove 20 so that the molding groove is connected to the external environment, thereby avoiding the formation of a vacuum between the molded part and the molding groove. Subsequently, the cylinder 10 drives the suction cup 14 at the bottom of the fixed plate 13 to move downward, so that the suction cup 14 removes the molded part from the fixed mold 4.

[0025] 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. A die-casting device for a lamp housing mold capable of eliminating air holes, comprising a base (1), characterized in that: A bracket (9) is fixedly mounted on the surface of the base (1), three groups of linearly distributed cylinders (10) are mounted on the top of the bracket (9), injection heads (11), a movable mold (12) and a fixed plate (13) are fixedly mounted on the output ends of the cylinders (10), respectively, a suction cup (14) is fixedly mounted on the bottom surface of the fixed plate (13), a slide groove (2) is provided on the surface of the base (1), a driving block (3) is slidably connected inside the slide groove (2), a fixed mold (4) is fixedly mounted on the surface of the driving block (3), a pump body (15) is fixedly mounted on the side of the movable mold (12), a connecting pipe (16) is fixedly mounted on the output end of the pump body (15), an exhaust groove (18) is provided inside the fixed mold (4), and one end of the connecting pipe (16) extending out of the movable mold (12) corresponds to the notch of the exhaust groove (18).

2. The die-casting equipment for lamp housing mold capable of eliminating pores according to claim 1, characterized in that: A motor (7) is fixedly mounted on the side of the base (1), a screw rod (8) is fixedly mounted on the output end of the motor (7), the screw rod (8) is rotatably connected inside the slide groove (2), and the drive block (3) is threadedly connected to the surface of the screw rod (8).

3. The die-casting equipment for lamp housing mold capable of eliminating pores according to claim 1, characterized in that: A sliding block (6) is fixedly mounted on the side of the fixed mold (4), a sliding rail (5) is fixedly mounted on the surface of the base (1), and the sliding block (6) slides on the surface of the sliding rail (5).

4. The die-casting equipment for lamp housing mold capable of eliminating pores according to claim 1, characterized in that: A soft cushion (17) is provided at the connection between the connecting pipe (16) and the movable mold (12) and the fixed mold (4).

5. The die-casting equipment for lamp housing mold capable of eliminating pores according to claim 1, characterized in that: A circular groove (19) is provided inside the fixed mold (4), a cylinder (23) is rotatably connected inside the circular groove (19), a rotating head (24) is fixedly mounted on one end of the cylinder (23) located outside the fixed mold (4), a through hole (26) and a circular hole (27) are provided on the surface of the cylinder (23), the through hole (26) is connected to the circular hole (27), and a through groove (20) is provided on the surface of the fixed mold (4), the through groove (20) is connected to the circular groove (19).

6. The die-casting equipment for lamp housing mold capable of eliminating pores according to claim 5, characterized in that: A limiting ring (25) is fixedly mounted on the surface of the cylinder (23), a limiting groove (21) is provided inside the circular groove (19), and the limiting block rotates inside the limiting groove (21).

7. The die-casting equipment for lamp housing mold capable of eliminating pores according to claim 5, characterized in that: A protrusion (28) is fixedly mounted on the surface of the rotating head (24), a screw (29) is inserted into the interior of the protrusion (28), a screw hole (22) is opened on the side of the fixed mold (4), and the screw (29) is threadedly connected inside the screw hole (22).

8. The die-casting equipment for lamp housing mold capable of eliminating pores according to claim 5, characterized in that: The circular hole (27) has the same diameter as the through groove (20), and the circular hole (27) and the through groove (20) are located on the same axis.

9. The die-casting equipment for lamp housing mold capable of eliminating pores according to claim 1, characterized in that: A condensation box (31) is fixedly mounted on the side of the fixed mold (4), a condensation groove (30) is provided at the bottom of the molding groove of the fixed mold (4), and the condensation box (31) is in communication with the condensation groove (30).

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