Injection mold for automobile rearview mirror shell

Abstract

The invention discloses an injection mold for an automobile rearview mirror shell, relates to the technical field of automobile rearview mirror processing, and aims at solving the problems that the demolding efficiency is low due to the fact that liquid cooling is singly used for cooling, and the cooling effect during recycling is affected due to the fact that the temperature of cooling liquid rises after the cooling liquid is used, the injection mold comprises a lower mold, and a through hole is formed in the bottom of the side wall of the lower mold in a penetrating mode; a liquid cooling mechanism is arranged on the bottom surface of the lower mold; a rectangular frame is fixedly connected to the left outer wall of the lower mold corresponding to the through hole; through cooperation of liquid cooling and air cooling, the automobile rearview mirror shell can be rapidly cooled and formed, the cooling fan blows cold air to the liquid cooling coiled pipe to cool cooling liquid flowing through the liquid cooling coiled pipe, the cooling coiled pipe prolongs the time of the cooling liquid flowing back into the water tank, the cooling liquid subjected to liquid cooling is further cooled, and the cooling effect of the automobile rearview mirror shell is improved. The problems that the demolding efficiency is low due to the fact that liquid cooling is singly used for cooling, and the cooling effect during recycling is affected due to the fact that the temperature rises after cooling liquid is used are effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile rearview mirror processing, in particular to an automobile rearview mirror shell injection mold. Background Art

[0002] Injection molding is a method for producing industrial products. Products usually use rubber injection molding and plastic injection molding. Specifically, it refers to injecting the heated and molten material into the mold cavity by high pressure, and then cooling and solidifying to obtain a molded product. The car rearview mirror shell accounts for a considerable proportion of auto parts. The existing car rearview mirror shell is generally made of plastic material. Therefore, in the production process of car rearview mirrors, injection molds are usually used to perform injection molding on the rearview mirror shell.

[0003] In the prior art, the most common cooling method used in the injection mold of the automobile rearview mirror shell is liquid cooling. However, the cooling speed of the single liquid cooling method is very slow. In the entire molding cycle consisting of mold closing time, filling time, holding time, cooling time and demolding time, the cooling time accounts for the largest proportion, which seriously affects the production efficiency. At the same time, when using liquid cooling, the cooling liquid will gradually increase in temperature during the recycling process due to the direct influence of the high temperature of the mold, thereby affecting its subsequent cooling effect and reducing the recycling efficiency.

[0004] Therefore, a car rearview mirror shell injection mold is needed to solve the problems in the prior art that the single use of liquid cooling leads to low demoulding efficiency, and the temperature of the cooling liquid increases after use, thereby affecting the cooling effect during cyclic use. Summary of the invention

[0005] The object of the present invention is to provide an injection mold for a rearview mirror shell of an automobile, so as to solve the problems in the prior art that the single use of liquid cooling leads to low demoulding efficiency, and the temperature of the cooling liquid increases after use, thereby affecting the cooling effect during cyclic use.

[0006] To achieve the above object, the present invention provides the following technical solution: an injection mold for a rearview mirror housing of an automobile, comprising a lower mold, a through hole is formed through the bottom of the side wall of the lower mold, a liquid cooling mechanism is provided on the bottom surface of the lower mold, a rectangular frame is fixedly connected to the left outer wall of the lower mold corresponding to the through hole, and an air cooling component is provided inside the rectangular frame;

[0007] The liquid cooling mechanism includes a water tank and two parallel slots, the water tank is fixedly connected to the bottom surface of the lower mold, the two slots are both opened on the front end outer wall of the lower mold, the two slots are fixedly connected with hollow blocks, the rear end outer walls of the two hollow blocks are fixedly connected with the same liquid cooling serpentine pipe, and a water pump is installed on one side of the front end of the top surface of the water tank.

[0008] It should be noted in the scheme that the air cooling component includes a mounting plate, which is arranged inside a rectangular frame, and a plurality of evenly distributed mounting holes are formed through the side wall of the mounting plate, and a cooling fan is installed inside each mounting hole. The top surface of the mounting plate slides through the top surface of the rectangular frame and is fixedly connected to the top plate, and positioning sleeves are fixedly connected to both ends of the bottom surface of the top plate, a magnetic part is fixedly connected inside the positioning sleeve, the bottom surface of the magnetic part is magnetically connected to an adsorption part, and the top surface of the top plate is fixedly connected to a handle.

[0009] It is further worth explaining that positioning holes are provided at the four corners of the top surface of the lower mold, a positioning rod is slidably inserted inside the positioning hole, a heat sink is fixedly connected between the two end walls on the right side of the through hole, the top ends of the four positioning rods are fixedly connected to the same upper mold, and an injection hole is provided through the center of the top surface of the upper mold.

[0010] It should be further explained that a mesh frame is fixedly connected inside the rectangular frame, an opening is provided on the top surface of the rectangular frame corresponding to the mesh frame, a cover plate is slidably inserted inside the opening, and a pull ring is fixedly connected at the center of the top surface of the cover plate.

[0011] As a preferred embodiment, the front end outer wall of the hollow block located on the right side is fixedly connected to a heat dissipation serpentine pipe, and the front end of the top surface of the water tank is fixedly connected to a liquid injection pipe.

[0012] As a preferred embodiment, a dustproof plate is fixedly connected to the left outer wall of the rectangular frame by bolts, and a screw cap is connected to the top end of the injection tube by threads.

[0013] As a preferred embodiment, the outer surface of the liquid-cooled serpentine tube contacts the inner top surface of the through hole, the output end of the water pump is fixedly connected to the front end outer wall of the hollow block located on the left side, and the mesh frame is located between the lower mold and the mounting plate.

[0014] As a preferred embodiment, the bottom surfaces of the two adsorption components are fixedly connected to the top surface of the rectangular frame, the outer surface of the adsorption component is slidably matched with the inner surface of the positioning sleeve, and the end of the heat dissipation serpentine tube away from the corresponding hollow block is fixedly connected to the top surface of the water tank.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The cooling liquid is sent into the liquid cooling serpentine tube through a water pump to cool the lower mold. The cold air generated by the dry ice in the mesh frame is blown to the lower mold through a cooling fan to further cool the lower mold, thereby improving the cooling effect. The liquid cooling is combined with the air cooling to enable the automobile rearview mirror shell to be quickly cooled and formed, thereby improving the demoulding efficiency and effectively avoiding the problem of low demoulding efficiency caused by the single use of liquid cooling.

[0017] 2. The cooling fan blows cold air to the liquid cooling serpentine tube to cool the cooling liquid flowing through the liquid cooling serpentine tube. The tortuous cooling serpentine tube prolongs the time for the cooling liquid to flow back into the water tank, and further cools the cooling liquid after liquid cooling, so that the temperature of the cooling liquid inside the water tank remains stable, ensuring the recycling effect of the cooling liquid and effectively avoiding the problem of the temperature of the cooling liquid rising after use, thereby affecting the cooling effect during recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the explosion structure of the lower mold and the upper mold of the present invention;

[0020] Figure 3 It is a schematic diagram of the front cross-sectional structure of a rectangular frame of the present invention;

[0021] Figure 4 It is a schematic diagram of the front cross-sectional structure of the top plate of the present invention;

[0022] Figure 5 It is a schematic diagram of the side structure of the lower mold of the present invention;

[0023] Figure 6 It is a schematic diagram of the front cross-sectional structure of the lower mold of the present invention.

[0024] Numbers in the figure: 1. lower mold; 2. through hole; 3. liquid cooling mechanism; 31. water tank; 32. slot; 33. hollow block; 34. liquid cooling serpentine tube; 35. water pump; 4. rectangular frame; 5. air cooling assembly; 51. mounting plate; 52. mounting hole; 53. cooling fan; 54. top plate; 55. positioning sleeve; 56. magnetic part; 57. adsorption part; 58. handle; 6. positioning hole; 7. positioning rod; 8. heat sink; 9. upper mold; 10. injection hole; 11. mesh frame; 12. opening; 13. cover plate; 14. pull ring; 15. heat dissipation serpentine tube; 16. liquid injection tube; 17. dustproof plate; 18. screw cap. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Example: Figure 1-Figure 6As shown, the present invention provides a technical solution, including a lower mold 1, a through hole 2 is formed through the bottom of the side wall of the lower mold 1, a liquid cooling mechanism 3 is provided on the bottom surface of the lower mold 1, a rectangular frame 4 is fixedly connected to the left outer wall of the lower mold 1 corresponding to the through hole 2, and an air cooling component 5 is provided inside the rectangular frame 4;

[0027] The liquid cooling mechanism 3 includes a water tank 31 and two parallel slots 32. The water tank 31 is fixedly connected to the bottom surface of the lower mold 1. The two slots 32 are both opened on the front outer wall of the lower mold 1. Hollow blocks 33 are fixedly connected inside the two slots 32. The rear end outer walls of the two hollow blocks 33 are fixedly connected to the same liquid cooling serpentine tube 34. A water pump 35 is installed on one side of the front end of the top surface of the water tank 31.

[0028] Further as Figure 1 , Figure 3 and Figure 4 As shown, it is worth explaining in detail that the air cooling component 5 includes a mounting plate 51, which is arranged inside the rectangular frame 4. A plurality of evenly distributed mounting holes 52 are opened through the side wall of the mounting plate 51, and a cooling fan 53 is installed inside each mounting hole 52. The top surface of the mounting plate 51 slides through the top surface of the rectangular frame 4 and is fixedly connected to a top plate 54. Both ends of the bottom surface of the top plate 54 are fixedly connected to positioning sleeves 55. A magnetic part 56 is fixedly connected inside the positioning sleeve 55. The bottom surface of the magnetic part 56 is magnetically connected to an adsorption part 57, and the top surface of the top plate 54 is fixedly connected to a handle 58.

[0029] Further as Figure 2 and Figure 6 As shown, it is worth explaining in detail that positioning holes 6 are opened at the four corners of the top surface of the lower mold 1, and a positioning rod 7 is slidably inserted inside the positioning hole 6. A heat dissipation block 8 is fixedly connected between the two end walls on the right side of the through hole 2, and the top ends of the four positioning rods 7 are fixedly connected to the same upper mold 9. An injection hole 10 is opened through the center of the top surface of the upper mold 9.

[0030] Further as Figure 3 As shown, it is worth explaining in detail that a mesh frame 11 is fixedly connected inside the rectangular frame 4, an opening 12 is opened on the top surface of the rectangular frame 4 corresponding to the mesh frame 11, a cover plate 13 is slidably inserted inside the opening 12, and a pull ring 14 is fixedly connected to the center of the top surface of the cover plate 13.

[0031] Specifically, after the cover plate 13 is pulled by the pull ring 14 , dry ice is added into the mesh frame 11 . After the cover plate 13 is reset, the cooling fan 53 is used to blow out air with a relatively low temperature, thereby effectively improving the air-cooling effect on the lower mold 1 .

[0032] Further as Figure 1 and Figure 2As shown, it is worth explaining in detail that the front end outer wall of the hollow block 33 located on the right side is fixedly connected to the heat dissipation serpentine pipe 15, and the front end of the top surface of the water tank 31 is fixedly connected to the injection pipe 16.

[0033] Specifically, the time for liquid to flow back into the water tank 31 is extended by the heat dissipation serpentine tube 15. The exposed heat dissipation serpentine tube 15 allows the refluxed liquid after liquid cooling to flow into the water tank 31 after the temperature is reduced, thereby preventing the liquid temperature in the water tank 31 from rising and affecting the liquid cooling effect. The liquid can be replenished into the water tank 31 in time through the injection pipe 16.

[0034] Further as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it is worth explaining in detail that a dustproof plate 17 is fixedly connected to the left outer wall of the rectangular frame 4 by bolts, and a screw cap 18 is connected to the top of the injection tube 16 by threads.

[0035] Specifically, the dustproof plate 17 can prevent the cooling fan 53 from blowing dust toward the liquid cooling serpentine tube 34 and the heat sink 8, thereby avoiding the problem of dust adsorbing on the outer surface of the liquid cooling serpentine tube 34 and the heat sink 8 and affecting the heat dissipation effect.

[0036] Further as Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, it is worth explaining in detail that the outer surface of the liquid-cooled serpentine tube 34 is in contact with the inner top surface of the through hole 2, the output end of the water pump 35 is fixedly connected to the front end outer wall of the hollow block 33 located on the left, and the mesh frame 11 is located between the lower mold 1 and the mounting plate 51.

[0037] Specifically, the liquid flows through the liquid-cooling serpentine tube 34, thereby cooling the lower mold 1 with water. The water pump 35 provides external power for the flow of the liquid. When the cooling fan 53 blows air toward the lower mold 1, the cold air generated by the dry ice placed in the mesh frame 11 is blown toward the lower mold 1, thereby improving the air-cooling effect on the lower mold 1.

[0038] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth explaining in detail that the bottom surfaces of the two adsorption components 57 are fixedly connected to the top surface of the rectangular frame 4, the outer surface of the adsorption component 57 is slidably matched with the inner surface of the positioning sleeve 55, and the end of the heat dissipation serpentine tube 15 away from the corresponding hollow block 33 is fixedly connected to the top surface of the water tank 31.

[0039] Specifically, the sliding cooperation between the adsorption member 57 and the positioning sleeve 55 improves the accuracy and speed of installing the mounting plate 51. The two ends of the heat dissipation serpentine tube 15 are respectively fixedly connected to the water tank 31 and one of the hollow blocks 33, so that the cooling liquid after liquid cooling can flow back to the inside of the water tank 31 through the heat dissipation serpentine tube 15, thereby realizing the recycling of the cooling liquid.

[0040] In summary: when the automobile rearview mirror shell injection mold is used, the cover plate 13 is opened by the pull ring 14, dry ice is added to the inside of the mesh frame 11, the cover plate 13 is restored, and cooling liquid is injected into the water tank 31 through the injection pipe 16, and then the lower mold 1 and the upper mold 9 are combined, and injection molding is performed through the injection hole 10. After the injection molding is completed, the water pump 35 and the multiple cooling fans 53 are turned on at the same time. The water pump 35 extracts the cooling liquid in the water tank 31 and transports it to the liquid cooling serpentine tube 34. When the cooling liquid flows in the liquid cooling serpentine tube 34, the lower mold 1 is liquid-cooled and cooled. At the same time, the volatilization of dry ice will emit A large amount of cold air is blown out, and multiple cooling fans 53 blow the cold air generated by the dry ice into the through hole 2. On the basis of the cooling effect of the liquid cooling serpentine tube 34, the lower mold 1 is further cooled, thereby improving the cooling effect and reducing the time required for cooling. The dustproof plate 17 is arranged to intercept dust in this process to prevent the cooling fan 53 from blowing dust to the outer surface of the liquid cooling serpentine tube 34. Through the cooperation of liquid cooling and air cooling, the cooling time of the mold is greatly shortened, so that the automobile rearview mirror shell can be quickly cooled and formed, thereby improving the demolding efficiency, and effectively avoiding the problem of low demolding efficiency caused by the single use of liquid cooling.

[0041] When the cooling fan 53 is damaged and needs to be repaired or replaced, the handle 58 is pulled to move the top plate 54, so that the magnetic part 56 is separated from the adsorption part 57, and the limit on the mounting plate 51 is released. After the mounting plate 51 is pulled out from the rectangular frame 4, the cooling fan 53 can be maintained and replaced. After the repair and replacement, the mounting plate 51 is reinserted into the rectangular frame 4. The sliding cooperation between the positioning sleeve 55 and the adsorption part 57 makes the installation of the mounting plate 51 faster and more accurate. The mounting plate 51 is limited by the magnetic connection between the magnetic part 56 and the adsorption part 57, and the installation of the mounting plate 51 is completed.

[0042] When the lower mold 1 is cooled by liquid cooling and air cooling, the cooling fan 53 blows the cold air generated by the dry ice to the liquid cooling serpentine tube 34, which also cools the liquid cooling serpentine tube 34. The cooling liquid after liquid cooling flows into the heat dissipation serpentine tube 15 under the action of the water pump 35. The tortuous heat dissipation serpentine tube 15 prolongs the time for the cooling liquid to flow back into the water tank 31. At the same time, the exposed heat dissipation serpentine tube 15 further cools the cooling liquid after liquid cooling, so that the cooling liquid flowing back into the water tank 31 is not affected by the lower mold 1 with a higher temperature, so that the temperature of the cooling liquid in the water tank 31 is maintained stable, ensuring the recycling effect of the cooling liquid, and effectively avoiding the problem that the temperature of the cooling liquid rises after use, thereby affecting the cooling effect during recycling.

[0043] The water pump 35 and the cooling fan 53 can be purchased on the market. The water pump 35 and the cooling fan 53 are equipped with a power supply, which is a mature technology in this field and has been fully disclosed, so they are not repeated in the specification.

[0044] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An injection mold for a rearview mirror housing of an automobile, comprising a lower mold (1), characterized in that: A through hole (2) is formed through the bottom of the side wall of the lower mold (1); a liquid cooling mechanism (3) is provided on the bottom surface of the lower mold (1); a rectangular frame (4) is fixedly connected to the left outer wall of the lower mold (1) corresponding to the through hole (2); an air cooling component (5) is provided inside the rectangular frame (4); The liquid cooling mechanism (3) comprises a water tank (31) and two parallelly distributed slots (32); the water tank (31) is fixedly connected to the bottom surface of the lower mold (1); the two slots (32) are both arranged on the front outer wall of the lower mold (1); hollow blocks (33) are fixedly connected inside the two slots (32); the rear outer walls of the two hollow blocks (33) are fixedly connected to the same liquid cooling serpentine pipe (34); and a water pump (35) is installed on one side of the front end of the top surface of the water tank (31).

2. The automobile rearview mirror housing injection mold according to claim 1, characterized in that: The air cooling component (5) comprises a mounting plate (51), wherein the mounting plate (51) is arranged inside the rectangular frame (4), and a plurality of evenly distributed mounting holes (52) are formed through the side wall of the mounting plate (51), and a cooling fan (53) is installed inside each mounting hole (52). The top surface of the mounting plate (51) slides through the top surface of the rectangular frame (4) and is fixedly connected to a top plate (54), and both ends of the bottom surface of the top plate (54) are fixedly connected to positioning sleeves (55), and a magnetic part (56) is fixedly connected inside the positioning sleeve (55), and the bottom surface of the magnetic part (56) is magnetically connected to an adsorption part (57), and the top surface of the top plate (54) is fixedly connected to a handle (58).

3. The automobile rearview mirror housing injection mold according to claim 2, characterized in that: The four corners of the top surface of the lower mold (1) are provided with positioning holes (6), and positioning rods (7) are slidably inserted inside the positioning holes (6). A heat dissipation block (8) is fixedly connected between the two end walls on the right side of the through hole (2). The top ends of the four positioning rods (7) are fixedly connected to the same upper mold (9), and an injection hole (10) is penetrated and opened at the center of the top surface of the upper mold (9).

4. The automobile rearview mirror housing injection mold according to claim 3, characterized in that: A screen frame (11) is fixedly connected inside the rectangular frame (4); an opening (12) is provided on the top surface of the rectangular frame (4) corresponding to the screen frame (11); a cover plate (13) is slidably inserted inside the opening (12); and a pull ring (14) is fixedly connected at the center of the top surface of the cover plate (13).

5. The automobile rearview mirror housing injection mold according to claim 4, characterized in that: The front end outer wall of the hollow block (33) located on the right side is fixedly connected to a heat dissipation serpentine pipe (15), and the front end of the top surface of the water tank (31) is fixedly connected to a liquid injection pipe (16).

6. The automobile rearview mirror housing injection mold according to claim 5, characterized in that: The left outer wall of the rectangular frame (4) is fixedly connected with a dustproof plate (17) by means of bolts, and the top end of the liquid injection pipe (16) is connected with a screw cap (18) by means of threads.

7. The automobile rearview mirror housing injection mold according to claim 4, characterized in that: The outer surface of the liquid-cooling serpentine tube (34) contacts the inner top surface of the through hole (2), the output end of the water pump (35) is fixedly connected to the front end outer wall of the hollow block (33) located on the left side, and the mesh frame (11) is located between the lower mold (1) and the mounting plate (51).

8. The automobile rearview mirror housing injection mold according to claim 5, characterized in that: The bottom surfaces of the two adsorption members (57) are fixedly connected to the top surface of the rectangular frame (4), the outer surface of the adsorption member (57) is slidably matched with the inner surface of the positioning sleeve (55), and the end of the heat dissipation serpentine tube (15) away from the corresponding hollow block (33) is fixedly connected to the top surface of the water tank (31).

Images