Injection mold with water blowing device

Abstract

The utility model relates to the technical field of injection molds, and discloses an injection mold with a water blowing device, which comprises a cooling box, and a lower mold is fixedly arranged in the cooling box; a scraper assembly is slidably mounted in the cooling box and is in sliding contact with the outer surface of the lower mold, and the outer surface of the lower mold is in contact with cooling water in the cooling box; a powerful fan is fixedly arranged on the cooling box, and an air blowing opening of the powerful fan communicates with the cooling box; an air outlet is formed in the cooling box and corresponds to an air blowing opening of the powerful fan, and a gas flowing channel is formed; airflow blown out by the powerful fan is in transmission fit with the scraper assembly; a reset assembly is installed on the cooling box and is in transmission connection with the scraper assembly. According to the utility model, the scraper assembly is arranged to scrape water on the outer surface of the lower die, which is in contact with cooling water, so that the drying in the cooling box is more sufficient, and meanwhile, the drying efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold with a water blowing device. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding, and is suitable for mass production and molding processing of complex-shaped products. When using current injection molds, water is often used to cool the mold cavity in order to speed up the molding speed in the mold cavity. However, traditional water cooling cannot achieve rapid cooling after recirculation, resulting in low production efficiency of injection molds.

[0003] An injection mold with a water blowing device described in publication number: CN215151404U includes a mold body, a high-pressure air pump box is arranged inside the mold body, a lower cover assembly is arranged inside the mold body, an air duct is fixedly connected to one side of the high-pressure air pump box, an air duct sealing control device is fixedly connected to the side of the air duct away from the high-pressure air pump box, and a heating base plate is arranged at the bottom of the inner wall of the lower cover assembly.

[0004] Based on the above technical features, the problem that arises is that in the prior art, the position of the mold far away from the fan cannot be blown directly, thereby accumulating moisture and causing insufficient drying.

[0005] Therefore, it is necessary to solve the above problems by an injection mold with a water blowing device. Summary of the invention

[0006] The purpose of the utility model is to provide an injection mold with a water blowing device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold with a water blowing device, comprising a cooling box, in which a lower mold is fixedly arranged; a scraper assembly is slidably installed in the cooling box, the scraper assembly is in sliding contact with the outer surface of the lower mold, and the outer surface is in contact with the cooling water in the cooling box; a powerful fan is fixedly arranged on the cooling box, and the blowing port of the powerful fan is connected to the cooling box; an exhaust port is provided on the cooling box, and the exhaust port corresponds to the blowing port of the powerful fan and forms a gas flow passage; the airflow blown out by the powerful fan is transmission-coordinated with the scraper assembly; a reset assembly is installed on the cooling box, and the reset assembly is transmission-connected to the scraper assembly.

[0008] Preferably, the scraper assembly includes a first scraper; a guide rail is fixedly arranged in the cooling box, and the first scraper is slidingly matched with the guide rail; the first scraper is in sliding contact with the outer surface of the lower mold, and the airflow blown out by the high-power fan is transmission-matched with the first scraper.

[0009] Preferably, the reset assembly includes a rotating shaft and a wire wheel; a fixed block is fixedly arranged on the cooling box, the rotating shaft and the fixed block are rotatably matched, and a winding spring is fixedly arranged between the rotating shaft and the fixed block; the wire wheel is coaxially fixedly connected to the rotating shaft; the wire wheel is fixedly connected to a pull rope, the pull rope is wound onto the wire wheel and the rope end away from the wire wheel is fixedly connected to the first scraper.

[0010] Preferably, the outer surface of the lower mold is an arc surface, and the guide rail is an arc track matching the arc contour of the outer surface of the lower mold, and the arc track is fixedly connected to the cooling box.

[0011] Preferably, a second scraper is slidably mounted on the guide rail, and the second scraper is in sliding contact with the outer surface of the lower mold; and a connecting rod is fixedly arranged between the first scraper and the second scraper.

[0012] Preferably, the first scraper and the second scraper are both coated with a hydrophobic coating.

[0013] Preferably, the cooling box is fixedly connected to a drain pipe, and the drain pipe is fixedly connected to a water tank; the bottom inner wall of the cooling box is an inclined surface, and is inclined downward toward the drain pipe.

[0014] Technical effects and advantages of the utility model:

[0015] First, the utility model is provided with a scraper assembly to scrape the outer surface of the lower mold in contact with the cooling water, thereby making the inside of the cooling box dry more fully and improving the drying efficiency.

[0016] Second, the driving source for driving the scraper assembly to move in the utility model is a powerful fan for air drying, and a reset assembly is provided at the same time to ensure automatic water scraping and automatic reset of the scraper assembly, with a high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the scraper assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of the reset assembly of the utility model;

[0020] Figure 4 This is an enlarged schematic diagram of point A of the utility model;

[0021] Figure 5 It is a schematic diagram of the exhaust port of the utility model.

[0022] In the figure: 1. Cooling box; 2. Exhaust port; 3. Powerful fan; 4. Upper cover assembly; 5. Casting pipe; 6. Water tank; 7. Drain pipe; 8. Water pump; 9. Condenser; 10. High-pressure air pump; 11. Return pipe; 12. Water inlet pipe; 13. Second scraper; 14. Connecting rod; 15. Guide rail; 16. First scraper; 17. Lower mold; 18. Fixed block; 19. Rotating shaft; 20. Pull rope; 21. Wire wheel. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] The utility model provides Figures 1 to 5 The injection mold with a water blowing device shown in the figure comprises a cooling box 1. A lower mold 17 is welded and fixed in the cooling box 1. The mold groove notch of the lower mold 17 faces upward, and an upper cover assembly 4 is mounted on the top of the cooling box 1. The upper mold is fixedly assembled in the upper cover assembly 4, and the upper mold is butted with the lower mold 17. A pouring pipe 5 is welded and fixed on the upper cover assembly 4, and the pouring pipe 5 is connected to the mold groove in the upper mold. The above are all existing technologies and will not be described in detail here.

[0025] The lower mold 17 is semi-cylindrical. The outer surface of the lower mold 17 at the bottom is a semi-circular curved surface, which contacts the cooling water in the cooling box 1. A scraper assembly is installed in the cooling box 1, and the scraper assembly is in sliding contact with the outer surface of the lower mold 17 to scrape off the cooling water adhering to the lower mold 17.

[0026] Two guide rails 15 are installed in the cooling box 1. Both guide rails 15 are semicircular arc tracks matching the semicircular arc surface of the lower mold 17. Both guide rails 15 are fixedly connected to the cooling box 1, and the scraper assembly is assembled on the two guide rails 15.

[0027] The scraper assembly includes a first scraper 16. The first scraper 16 is in limited sliding cooperation with the two guide rails 15 and is in sliding contact with the outer surface of the lower mold 17 at the same time.

[0028] A plurality of powerful fans 3 are installed on the top of the cooling box 1. The air outlet of each powerful fan 3 is connected to the cooling box 1 and faces the first scraper 16. The airflow blown by each powerful fan 3 is in transmission cooperation with the first scraper 16 to push the first scraper 16 to slide along the guide rail 15.

[0029] A plurality of exhaust ports 2 are provided on the top of the cooling box 1. The plurality of exhaust ports 2 correspond to the plurality of powerful fans 3 one by one, and each exhaust port 2 forms a gas flow channel with the blowing port of the corresponding powerful fan 3. The plurality of powerful fans 3 are arranged in a straight line along the axial direction of the lower mold 17. The lower mold 17 is located between the corresponding powerful fans 3 and the exhaust ports 2.

[0030] The same second scraper 13 is mounted on the two guide rails 15. The second scraper 13 is limitedly slidably matched with the two guide rails 15, and is in sliding contact with the outer surface of the lower mold 17. The first scraper 16 is located between the second scraper 13 and the powerful fan 3. A connecting rod 14 is mounted between the first scraper 16 and the second scraper 13, and the first scraper 16 and the second scraper 13 are fixedly connected to the connecting rod 14. To ensure synchronous sliding, the second scraper 13 is used to scrape the cooling water on the outer surface of the lower mold 17 near the exhaust port 2.

[0031] The connecting rod 14 is a semicircular arc rod, which matches the arc profile of the outer surface of the lower mold 17. It is ensured that the connecting rod 14 does not form a brake with the lower mold 17 when the first scraper 16 and the second scraper 13 slide synchronously.

[0032] The first scraper 16 and the second scraper 13 are coated with a hydrophobic coating to prevent scraped water from adhering to the first scraper 16 and the second scraper 13 .

[0033] The top of the cooling box 1 is equipped with a reset assembly, which is in transmission connection with the first scraper 16 and is used to reset the first scraper 16. The reset assembly includes a rotating shaft 19 and a wire wheel 21. Two fixed blocks 18 are welded and fixed on the top of the cooling box 1. The rotating shaft 19 is horizontally placed between the two fixed blocks 18 and is rotatably connected to the two fixed blocks 18. A coil spring is sleeved on the rotating shaft 19, one end of the coil spring is fixedly connected to the rotating shaft 19, and the other end of the coil spring is fixedly connected to one of the fixed blocks 18. The elastic force of the coil spring is not enough to overcome the impact force of the airflow blown by the powerful fan 3 on the first scraper 16.

[0034] The wire wheel 21 is coaxially fixedly connected to the rotating shaft 19, and the wire wheel 21 is fixedly connected to a pull rope 20. The pull rope 20 is wound on the wire wheel 21, and the rope end of the pull rope 20 away from the wire wheel 21 slides into the cooling box 1 and is fixedly connected to the first scraper 16. The pull rope 20 is always in a taut state.

[0035] The side of the cooling box 1 is equipped with a matching water tank 6 and a condenser 9. A drain pipe 7 is installed between the water tank 6 and the cooling box 1, and the drain pipe 7 connects the water tank 6 and the cooling box 1. At the same time, a solenoid valve is fixed on the drain pipe 7 by screws, and the solenoid valve controls the opening and closing of the drain pipe 7.

[0036] A return pipe 11 is installed between the cooling box 1 and the water tank 6, and the return pipe 11 connects the cooling box 1 and the water tank 6. The connection point between the return pipe 11 and the cooling box 1 is located above the side of the cooling box 1, and is used to return excess cooling water.

[0037] The bottom inner wall of the cooling box 1 is an inclined surface, which is inclined downward toward the drain pipe 7 to facilitate the cooling water to flow back to the water box 6 through the drain pipe 7.

[0038] A water inlet pipe 12 is installed between the condenser 9 and the cooling box 1, and the water inlet pipe 12 connects the water outlet of the condenser 9 and the cooling box 1, and is used to inject cooling water into the cooling box 1. A water pump 8 is installed between the condenser 9 and the water tank 6, and the water pump 8 is bolted to the water tank 6. The water inlet of the water pump 8 is connected to the water tank 6, and the water outlet of the water pump 8 is connected to the water inlet of the condenser 9, and is used to pump water to be cooled into the condenser 9.

[0039] A high-pressure air pump 10 is bolted to the cooling box 1 , and a pump port of the high-pressure air pump 10 blows toward the drain pipe 7 along the bottom inner wall of the cooling box 1 to blow the water in the cooling box 1 into the water tank 6 .

[0040] The bottom of the cooling box 1 is a heating base plate, which is used to dry the moisture in the cooling box 1.

[0041] Working principle: When the inside of the cooling box 1 needs to be dried, the high-pressure air pump 10 is first started intermittently, and the air outlet of the high-pressure air pump 10 blows the cooling water on the inner wall of the bottom of the cooling box 1 into the drain pipe 7. The solenoid valve in the drain pipe 7 opens the drain pipe 7, and the cooling water flows into the water tank 6 through the drain pipe 7. At the same time, the heating bottom plate heats the air in the cooling box 1 and dries the inside of the cooling box 1.

[0042] Then all the powerful fans 3 are started, and the airflow blown by the powerful fans 3 hits the first scraper 16. The first scraper 16 slides along the two guide rails 15, and at the same time scrapes off the cooling water adhering to the outer surface of the lower mold 17 located below. In the process of sliding along the two guide rails 15, the first scraper 16 pushes the second scraper 13 to slide along the two guide rails 15 through the connecting rod 14. In the process of sliding along the two guide rails 15, the second scraper 13 scrapes off the cooling water adhering to the outer surface of the lower mold 17 located below.

[0043] The cooling water scraped off by the first scraper 16 and the second scraper 13 slides to the bottom inner wall of the cooling box 1 due to the effect of the hydrophobic coating. The cooling water dripping on the bottom inner wall of the cooling box 1 is blown into the drain pipe 7 by the high-pressure air pump 10.

[0044] When the first scraper 16 slides along the two guide rails 15, the pull rope 20 is pulled and released from the wire wheel 21. At the same time, the wire wheel 21 rotates and drives the rotating shaft 19 to rotate, and the rotating shaft 19 pushes the coil spring to generate a torsion force. When the torsion force of the coil spring is equal to the impact force of the airflow on the first scraper 16, the first scraper 16 remains stationary. At this time, the first scraper 16 and the second scraper 13 complete the scraping and full coverage of the outer surface of the lower mold 17 located below.

[0045] At the same time, the airflow blown out by the powerful fan 3 pushes the water vapor inside the cooling box 1 to be discharged from the exhaust port 2 on the cooling box 1, thereby achieving air drying.

[0046] When drying is completed, all powerful fans 3 and high-pressure air pumps 10 are turned off. After that, the first scraper 16 is not affected by the impact of the airflow, and under the action of the torsion of the coil spring, the shaft 19 rotates and drives the wire wheel 21 to rotate, the wire wheel 21 reels the pull rope 20, and the pull rope 20 pulls the first scraper 16 to reset.

[0047] The other working processes are all prior art and will not be described in detail here.

[0048] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An injection mold with a water blowing device, comprising a cooling box (1), characterized in that: A lower mold (17) is fixedly arranged in the cooling box (1); a scraper assembly is slidably installed in the cooling box (1), the scraper assembly is in sliding contact with the outer surface of the lower mold (17), and the outer surface is in contact with cooling water in the cooling box (1); a powerful fan (3) is fixedly arranged on the cooling box (1), and the blowing port of the powerful fan (3) is connected to the cooling box (1); an exhaust port (2) is provided on the cooling box (1), and the exhaust port (2) corresponds to the blowing port of the powerful fan (3) and forms a gas flow passage; the air flow blown out by the powerful fan (3) is in transmission cooperation with the scraper assembly; a reset assembly is installed on the cooling box (1), and the reset assembly is in transmission connection with the scraper assembly.

2. The injection mold with a water blowing device according to claim 1, characterized in that: The scraper assembly comprises a first scraper (16); a guide rail (15) is fixedly arranged in the cooling box (1), and the first scraper (16) and the guide rail (15) are limitedly slidably matched; the first scraper (16) is in sliding contact with the outer surface of the lower mold (17), and the airflow blown out by the powerful fan (3) is transmission-matched with the first scraper (16).

3. The injection mold with a water blowing device according to claim 2, characterized in that: The reset assembly comprises a rotating shaft (19) and a wire wheel (21); a fixed block (18) is fixedly arranged on the cooling box (1), the rotating shaft (19) and the fixed block (18) are rotatably matched, and a coil spring is fixedly arranged between the rotating shaft (19) and the fixed block (18); the wire wheel (21) is coaxially fixedly connected to the rotating shaft (19); the wire wheel (21) is fixedly connected to a pull rope (20), the pull rope (20) is wound onto the wire wheel (21), and the rope end away from the wire wheel (21) is fixedly connected to the first scraper (16).

4. The injection mold with a water blowing device according to claim 2, characterized in that: The outer surface of the lower mold (17) is an arc surface, and the guide rail (15) is an arc track matching the arc profile of the outer surface of the lower mold (17), and the arc track is fixedly connected to the cooling box (1).

5. The injection mold with a water blowing device according to claim 4, characterized in that: A second scraper (13) is slidably mounted on the guide rail (15), and the second scraper (13) is in sliding contact with the outer surface of the lower mold (17); a connecting rod (14) is fixedly arranged between the first scraper (16) and the second scraper (13).

6. The injection mold with a water blowing device according to claim 5, characterized in that: The first scraper (16) and the second scraper (13) are both coated with a hydrophobic coating.

7. The injection mold with a water blowing device according to claim 1, characterized in that: The cooling box (1) is fixedly connected to a drainage pipe (7), and the drainage pipe (7) is fixedly connected to a water tank (6); the inner wall of the bottom of the cooling box (1) is an inclined surface, and is inclined downward toward the drainage pipe (7).

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