Injection mold capable of accelerating cooling

Abstract

The utility model belongs to the technical field of injection molds, and particularly discloses an injection mold capable of accelerating cooling, which comprises a device frame, a hydraulic rod is arranged on the device frame, an upper mold is fixedly connected to the bottom end of the hydraulic rod, a pressure plate is fixedly sleeved on the outer surface of the hydraulic rod, a lower mold is fixedly mounted on the device frame, and the lower mold is fixedly connected with the hydraulic rod. A spiral air channel is formed in the lower die, and a circulating water pipe is arranged in the lower die. According to the injection mold capable of accelerating cooling, in the injection molding process, the lower mold can be effectively cooled through the air cooling and water cooling integrated mechanism, the air cooling system stirs air flow through fan blades and discharges the air flow through a spiral air duct, heat dissipation of the surface of the mold is accelerated, and the water cooling system enables water flow to flow in the lower mold through a circulating water pipe; a large amount of heat is effectively absorbed and taken away, and the cooling time of the whole mold can be greatly shortened through the combined action, so that the production cycle is remarkably shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of injection molds, and in particular to an injection mold capable of accelerating cooling. Background Art

[0002] Injection mold, also known as injection mold or plastic injection mold, is a tool or mold used for plastic injection molding. It usually consists of at least two parts: one is a concave mold (i.e., lower mold) for molding the shape of the plastic product, and the other is a convex mold (i.e., upper mold) for forming the internal structure of the plastic product.

[0003] At present, most injection molds are cooled by natural cooling. The natural cooling process is relatively slow, especially for thick-walled or large molds. It takes a long time for the entire mold to be completely cooled, which will extend the production cycle and reduce production efficiency. Utility Model Content

[0004] In view of this, the purpose of the present invention is to solve the shortcomings of the background technology and to provide an injection mold capable of accelerating cooling to solve the problems existing in the prior art.

[0005] To achieve the above purpose, the utility model provides an injection mold that can accelerate cooling, including a device frame, a hydraulic rod is arranged on the device frame, the bottom end of the hydraulic rod is fixedly connected to the upper mold, the outer surface of the hydraulic rod is fixedly sleeved with a pressure plate, a lower mold is fixedly installed on the device frame, a spiral air duct is opened inside the lower mold, a circulating water pipe is arranged inside the lower mold, an open hole box is fixedly connected to the outer surface of the lower mold, an air-cooling and water-cooling integrated mechanism for accelerating the cooling of the lower mold is arranged inside the open hole box, a plurality of open holes are opened on the open hole box, and airflow can flow freely in the open hole box and the lower mold.

[0006] Preferably, the air-cooling and water-cooling integrated mechanism includes a rack fixedly connected to the bottom of the pressure plate, and the perforated box is rotatably connected to a rotating shaft inside. The air-cooling and water-cooling integrated mechanism can accelerate the cooling of the lower mold by stirring the air flow and pushing the water flow during the downward movement of the upper mold.

[0007] Preferably, a gear is fixedly sleeved on the outer surface of the rotating shaft, the outer surface of the gear is meshingly connected with the outer surface of the rack, and a fan blade is arranged at one end of the rotating shaft that enters the lower mold.

[0008] Preferably, one end of the rotating shaft away from the fan blades is fixedly connected with a disc, and the outer surface of the disc is fixedly connected with a guide shaft.

[0009] Preferably, a plurality of groups of baffles are provided inside the perforated box, the inner side of the baffles is slidably connected with a shift plate, the outer surface of the shift plate is fixedly connected with a concave strip, and the inner surface of the concave strip is slidably connected with the outer surface of the guide shaft.

[0010] Preferably, an air bag is provided at the bottom of the inner wall of the perforated box, and the air bag is fixedly connected to one end of the circulating water pipe, a heat sink is provided on the air bag, the heat sink is connected to the top part of the air bag, and the other part of the heat sink passes through the perforated box and is exposed outside.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The injection mold capable of accelerated cooling can effectively cool down the lower mold through the integrated air-cooling and water-cooling mechanism during the injection molding process. The air-cooling system stirs the airflow through the fan blades and discharges it through the spiral air duct to accelerate the heat dissipation on the mold surface, while the water-cooling system uses a circulating water pipe to flow water inside the lower mold to effectively absorb and take away a large amount of heat. The combined effect can greatly shorten the cooling time of the entire mold, thereby significantly reducing the production cycle and improving production efficiency.

[0013] 2. The injection mold with accelerated cooling can control the cooling process more accurately and stably, which can reduce the internal stress and deformation risk of the product during the molding process. The uniform cooling ensures the stability and consistency of the product size, thereby improving the quality and precision of the molded parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of this application;

[0015] Figure 2 This is a schematic diagram of the internal structure of the mold in this application;

[0016] Figure 3 This is a schematic diagram of the internal structure of the perforated box of this application.

[0017] Among them: 1. Device frame; 2. Hydraulic rod; 3. Upper mold; 4. Lower mold; 5. Spiral air duct; 6. Circulating water pipe; 7. Perforated box; 8. Pressure plate; 9. Rack; 10. Rotating shaft; 11. Gear; 12. Fan blade; 13. Disc; 14. Guide shaft; 15. Stop rod; 16. Shift plate; 17. Concave strip; 18. Air bag; 19. Heat sink. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] See also Figure 1-3 , an injection mold capable of accelerating cooling, comprising a device frame 1, a hydraulic rod 2 is arranged on the device frame 1, an upper mold 3 is fixedly connected to the bottom end of the hydraulic rod 2, a pressure plate 8 is fixedly sleeved on the outer surface of the hydraulic rod 2, a lower mold 4 is fixedly installed on the device frame 1, a spiral air duct 5 is opened inside the lower mold 4, a circulating water pipe 6 is arranged inside the lower mold 4, an open hole box 7 is fixedly connected to the outer surface of the lower mold 4, and an air-cooling and water-cooling integrated mechanism for accelerating the cooling of the lower mold 4 is arranged inside the open hole box 7.

[0020] Through the above technical solution, during the use of the injection mold, the upper mold 3 is used to injection mold the object in the lower mold 4 through the downward movement of the hydraulic rod 2. During this process, the pressure plate 8 will move downward synchronously with the upper mold 3, during which the air-cooling and water-cooling integrated mechanism will be triggered, so that the air flow continuously passes through the spiral air duct 5, and the water circulates in the circulating water pipe 6, thereby effectively cooling the lower mold 4.

[0021] Specifically, the air-cooling and water-cooling integrated mechanism includes a rack 9 fixedly connected to the bottom of the pressure plate 8, and a rotating shaft 10 is rotatably connected to the inside of the perforated box 7.

[0022] Through the above technical solution, the pressure plate 8 will drive the rack 9 to move downward synchronously during the downward movement. During this period, the rack 9 will drive the gear 11 meshing with it to rotate.

[0023] Specifically, a gear 11 is fixedly sleeved on the outer surface of the rotating shaft 10 , and the outer surface of the gear 11 is meshedly connected with the outer surface of the rack 9 . A fan blade 12 is provided at one end of the rotating shaft 10 that enters the lower mold 4 .

[0024] Through the above technical solution, the gear 11 can cause the fan blades 12 at the end to rotate during the self-rotation process, thereby stirring the airflow inside the perforated box 7 and the lower mold 4.

[0025] Specifically, a disc 13 is fixedly connected to one end of the rotating shaft 10 away from the fan blades 12 , and a guide shaft 14 is fixedly connected to the outer surface of the disc 13 .

[0026] Through the above technical solution, during the rotation of the rotating shaft 10 , the other end thereof will drive the disc 13 , thereby linking the guide shaft 14 to make a circular motion along with the disc 13 .

[0027] Specifically, a plurality of baffle rods 15 are arranged inside the perforated box 7 , the inner side of the baffle rods 15 is slidably connected with a shift plate 16 , the outer surface of the shift plate 16 is fixedly connected with a concave strip 17 , and the inner surface of the concave strip 17 is slidably connected with the outer surface of the guide shaft 14 .

[0028] Through the above technical solution, the blocking rod 15 plays a role in relatively limiting the shift plate 16, allowing the shift plate 16 to move longitudinally along a fixed track under the action of the concave strip 17 and the guide shaft 14.

[0029] Specifically, an air bag 18 is provided at the bottom of the inner wall of the perforated box 7 , and the air bag 18 is fixedly connected to one end of the circulating water pipe 6 , and a heat sink 19 is provided on the air bag 18 .

[0030] Through the above technical solution, water is injected into the airbag 18 , and the airbag 18 will squeeze the water into the circulating water pipe 6 after being compressed.

[0031] Working principle: The injection mold is installed during the injection molding process, and the downward movement of the hydraulic rod 2 drives the upper mold 3 to perform injection molding on the object in the lower mold 4. During this process, the pressure plate 8 will move downward synchronously, and in the process of pushing the rack 9 downward, the pressure plate 8 will cause the gear 11 to rotate, thereby driving the rotating shaft 10 to rotate synchronously. During the rotation of the rotating shaft 10, one end of the rotating shaft 10 will drive the fan blade 12 to rotate. When the fan blade 12 rotates, it can stir the airflow, so that the airflow passes through the spiral air duct 5 and is finally discharged from the top of the lower mold 4. The continuous passage of airflow in the spiral air duct 5 can accelerate the heat dissipation, thereby improving the heat dissipation effect. At the same time, the other end of the rotating shaft 10 will drive the disc 13 to rotate, thereby linking the guide shaft 14 to do circular motion. During the circular motion of the guide shaft 14, it will slide along the inner side of the concave strip 17 and drive the concave strip 17, so that the concave strip 17 and the shift plate 16 move longitudinally back and forth under the relative limiting action of the baffle 15. During this process, the shift plate 16 will repeatedly squeeze the airbag 18, so that the water in the airbag 18 is squeezed into the circulating water pipe 6. The water flowing back and forth in the circulating water pipe 6 can absorb a large amount of heat in the lower mold 4. When the water flows back and forth in the airbag 18 under the elastic recovery effect of the airbag 18, the heat in the water flow can be transferred to the heat sink 19 through the airbag 18, and the heat is dissipated by the heat sink 19, so that the lower mold 4 is effectively cooled down under the simultaneous action of water cooling and air cooling.

[0032] In summary: The injection mold in this application adopts both air cooling and water cooling systems, which not only significantly improves production efficiency and product quality, but also saves energy and enhances production flexibility and sustainability. The advantages of this combined effect make it an important technological advancement in modern injection molding production.

[0033] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An injection mold capable of accelerating cooling, comprising a device frame (1), characterized in that: The device frame (1) is provided with a hydraulic rod (2), the bottom end of the hydraulic rod (2) is fixedly connected to an upper mold (3), the outer surface of the hydraulic rod (2) is fixedly sleeved with a pressure plate (8), the device frame (1) is fixedly installed with a lower mold (4), the interior of the lower mold (4) is provided with a spiral air duct (5), the interior of the lower mold (4) is provided with a circulating water pipe (6), the outer surface of the lower mold (4) is fixedly connected to an open hole box (7), and the interior of the open hole box (7) is provided with an integrated air-cooling and water-cooling mechanism for accelerating the cooling of the lower mold (4).

2. The injection mold capable of accelerated cooling according to claim 1, characterized in that: The air-cooling and water-cooling integrated mechanism comprises a rack (9) fixedly connected to the bottom of the pressure plate (8), and a rotating shaft (10) is rotatably connected inside the perforated box (7).

3. The injection mold capable of accelerated cooling according to claim 2, characterized in that: A gear (11) is fixedly sleeved on the outer surface of the rotating shaft (10), and the outer surface of the gear (11) is meshedly connected with the outer surface of the rack (9). A fan blade (12) is arranged at one end of the rotating shaft (10) that enters the lower mold (4).

4. The injection mold capable of accelerated cooling according to claim 3, characterized in that: One end of the rotating shaft (10) away from the fan blades (12) is fixedly connected to a disc (13), and the outer surface of the disc (13) is fixedly connected to a guide shaft (14).

5. The injection mold capable of accelerated cooling according to claim 4, characterized in that: A plurality of groups of baffle rods (15) are arranged inside the perforated box (7), the inner side of the baffle rods (15) is slidably connected to a shift plate (16), the outer surface of the shift plate (16) is fixedly connected to a concave strip (17), and the inner surface of the concave strip (17) is slidably connected to the outer surface of the guide shaft (14).

6. The injection mold capable of accelerated cooling according to claim 1, characterized in that: An air bag (18) is provided at the bottom of the inner wall of the perforated box (7), and the air bag (18) is fixedly connected to one end of the circulating water pipe (6), and a heat sink (19) is provided on the air bag (18).

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