Rotary mold core water conveying cooling structure of injection mold

Abstract

The utility model relates to the technical field of rotary mold core cooling, in particular to a rotary mold core water conveying cooling structure of an injection mold, which comprises a rotary mold core body, a cooling cavity, a water inlet pipe, a water tank, a cooling mechanism, a water pump and a return pipe, the water tank is arranged on one side of the rotary core body, the water tank is filled with cooling water, a first cavity is formed in the water tank, the cooling mechanism is arranged in the first cavity, the cooling mechanism communicates with the inner wall of the water tank and is used for cooling backflow cooling water, and the input end of the water pump communicates with the water tank; and the output end of the water pump communicates with the water inlet pipe, the backflow pipe communicates between the cooling mechanism and the cooling cavity, and by means of the technical scheme, the problem that in the related technology, cooling water is prone to being wasted in the process of cooling the rotary mold core through cooling water is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary core cooling, in particular to a rotary core water transport cooling structure of an injection mold. Background Art

[0002] Injection molds are tools for producing plastic products and are widely used. However, during the actual injection molding process, some internal thread plastic part molds are damaged due to insufficient cooling during rotational demoulding due to high injection temperatures. If the demoulding time after cooling is extended, the injection molding cycle time is greatly increased, which cannot meet production needs.

[0003] In order to facilitate cooling of the injection mold, after searching, a utility model patent with announcement number CN207207041U in the prior art was found, which discloses a rotary core water cooling structure for a bottle cap injection mold, including a mold frame and a rotary core arranged on the mold frame. A water cooling system is provided in the rotary core, and the water cooling system includes a core water transport pipe axially arranged in the rotary core and a water inlet pipe axially sleeved in the core water transport pipe. The diameter of the water inlet pipe is smaller than that of the core water transport pipe, and the tops of the two are connected to each other. A first water cooling chamber is formed between the core water transport pipe and the water inlet pipe.

[0004] The above-mentioned existing technology can achieve rapid cooling of the rotating core and more stable temperature by adding a water cooling system during use. However, cooling water needs to be continuously injected during use and the cooling water after heat exchange is discharged. The cooling water cannot be recycled, which easily causes waste of resources. Utility Model Content

[0005] The utility model provides a water transport cooling structure for a rotary core of an injection mold, which solves the problem in the related art that cooling water is easily wasted during the cooling process of the rotary core.

[0006] The technical solution of the utility model is as follows: a rotating core water cooling structure of an injection mold, comprising a rotating core body, a cooling cavity, a water inlet pipe, a water tank, a cooling mechanism, a water pump and a return pipe;

[0007] The cooling cavity is provided in the rotating core body;

[0008] The water inlet pipe is provided through the inner bottom wall of the cooling cavity, and the water inlet pipe is sealed at one end away from the rotating core body;

[0009] The water tank is arranged on one side of the rotating core body, the water tank is filled with cooling water, and a first cavity is arranged in the water tank;

[0010] The cooling mechanism is disposed in the first cavity and is in communication with the inner wall of the water tank, and is used to cool the returning cooling water;

[0011] The water pump input end is connected to the water tank, and the water pump output end is connected to the water inlet pipe;

[0012] The return pipe is arranged in communication between the cooling mechanism and the cooling cavity.

[0013] Preferably, the cooling mechanism includes:

[0014] A support shell, the support shell is configured as an annular shape, two support shells are provided in the first cavity, and a support column is fixedly provided between the support shell and the inner wall of the first cavity;

[0015] Wherein, the return pipe is in communication with one of the support shells, and a connecting pipe is provided between the other support shell and the inner wall of the water tank;

[0016] Heat exchange tubes, a plurality of heat exchange tubes are rotatably arranged between the two support shells;

[0017] A heat exchange mechanism is provided in the first cavity and is used for exchanging heat with the cooling water in the heat exchange tube.

[0018] Furthermore, the heat exchange mechanism includes:

[0019] A blowing pipe, the blowing pipe is arranged in the first cavity, the two ends of the blowing pipe are rotatably connected to the side wall of the first cavity, and the side wall of the blowing pipe is provided with a plurality of blowing ports;

[0020] A fan is provided on one side of the water tank, a first air inlet pipe is provided between the output end of the fan and the blowing pipe, and the input end of the fan is connected to the external environment;

[0021] a first rotating mechanism, the first rotating mechanism being disposed in the water tank and being used to control the rotation of the blowing pipe;

[0022] a second rotating mechanism, the second rotating mechanism being disposed in the first cavity and configured to control the rotation of the heat exchange tube;

[0023] Air outlets, a plurality of the air outlets are provided on the inner top wall of the first cavity.

[0024] Furthermore, the first rotating mechanism includes:

[0025] a first annular rack fixedly disposed on the blowing pipe;

[0026] a first gear, the first gear being rotatably disposed on a side wall of the first cavity and meshing with the first annular rack;

[0027] A first motor is fixedly arranged on the water tank, and an output end of the first motor is fixedly connected to the first gear.

[0028] Furthermore, the second rotating mechanism includes:

[0029] a second gear, wherein a mounting opening is formed on the second gear, the second gear is sleeved on the blowing pipe through the mounting opening, and a side wall of the mounting opening is fixedly connected to a side wall of the blowing pipe;

[0030] A second annular rack is fixedly arranged on the side wall of the heat exchange tube, and the second annular rack is meshed with the second gear.

[0031] On the basis of the above solution, the side walls of the blowing pipe are evenly distributed with cleaning bristles, and the cleaning bristles are in contact with the heat exchange pipe.

[0032] Based on the above solution, a filter is provided at the fan input end.

[0033] On the basis of the above solution, an auxiliary cooling mechanism is further included. The auxiliary cooling mechanism is arranged in the water tank and is used to assist in cooling the cooling water. The auxiliary cooling mechanism includes:

[0034] A heat exchange shell is fixedly provided on the inner top wall and the inner bottom wall of the water tank;

[0035] Heat conducting pipes, a plurality of heat conducting pipes are provided between the two heat exchange shells;

[0036] a second air inlet pipe, the second air inlet pipe being communicatively arranged between one of the heat exchange housings and the first air inlet pipe;

[0037] An air outlet pipe is provided on the side wall of the water tank and is communicated with the other heat exchange shell.

[0038] Based on the above solution, a plurality of heat dissipation fins are fixedly provided on the side wall of the heat exchange tube.

[0039] Based on the above solution, a handle is fixedly provided on the side wall of the water tank.

[0040] The working principle and beneficial effects of the utility model are as follows:

[0041] 1. In the present invention, the arrangement of the water inlet pipe, the water pump and the return pipe facilitates the operation of the water pump to circulate the cooling water in the water tank and the cooling cavity, thereby facilitating the cooling of the rotating core body;

[0042] 2. In the present invention, the cooling mechanism is provided so that when the cooling water passes through the heat exchange tube, the fan is operated to blow the cooling water into the cavity of the blowing tube, and then blows air onto the surface of the heat exchange tube through the blowing port, thereby facilitating heat exchange between the cooling water and the air flow through the heat exchange tube, thereby cooling the cooling water.

[0043] 3. In the present invention, the first rotating mechanism and the second rotating mechanism are provided to facilitate the rotation of the blowing pipe and the heat exchange pipe by the operation of the first motor, thereby facilitating blowing at different positions of the heat exchange pipe, thereby improving the heat exchange efficiency;

[0044] 4. In the present invention, the auxiliary cooling mechanism is provided to facilitate blowing air into the heat exchange shell and the heat pipe through the operation of the fan, so that the cooling water in the water tank further exchanges heat with the air flow through the heat pipe, thereby facilitating further cooling of the cooling water;

[0045] 5 In the utility model, by arranging the rotating core body, the cooling cavity, the water inlet pipe, the water tank, the cooling mechanism, the water pump and the return pipe, it is convenient to cool the rotating core body by the flow of cooling water. At the same time, the cooling water is cooled during the flow of the cooling water, thereby improving the cooling effect of the cooling water on the rotating core body. At the same time, the cooling water can be recycled, thereby solving the problem of cooling water waste in the related art during the cooling process of the rotating core. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0047] Figure 1 This is a schematic diagram of the structure of the utility model;

[0048] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0049] Figure 3 This is a schematic diagram of the cross-sectional structure of the water tank of the utility model;

[0050] Figure 4 This is a schematic cross-sectional view of the cooling mechanism of the present invention.

[0051] In the figure: 1. Rotating core body; 2. Cooling cavity; 3. Water inlet pipe; 4. Water tank; 5. Water pump; 6. Return pipe; 7. Support shell; 8. Heat exchange pipe; 9. Blowing pipe; 10. Fan; 11. First air inlet pipe; 12. First annular rack; 13. First gear; 14. First motor; 15. Second gear; 16. Second annular rack; 17. Heat exchange shell; 18. Heat pipe; 19. Second air inlet pipe. DETAILED DESCRIPTION

[0052] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0053] like Figures 1-4 As shown, this embodiment proposes a water-cooling structure for a rotary core of an injection mold, comprising a rotary core body 1, a cooling cavity 2, a water inlet pipe 3, a water tank 4, a cooling mechanism, a water pump 5 and a return pipe 6. The cooling cavity 2 is opened in the rotary core body 1, and the water inlet pipe 3 is arranged through the inner bottom wall of the cooling cavity 2. The water inlet pipe 3 is sealed at one end away from the rotary core body 1. The water tank 4 is arranged on one side of the rotary core body 1. The water tank 4 is filled with cooling water. A first cavity is provided in the water tank 4. The cooling mechanism is arranged in the first cavity. The cooling mechanism is connected to the inner wall of the water tank 4 for cooling the refluxed cooling water. The input end of the water pump 5 is connected to the water tank 4, and the output end of the water pump 5 is connected to the water inlet pipe 3. The return pipe 6 is connected between the cooling mechanism and the cooling cavity 2. A handle is fixed on the side wall of the water tank 4.

[0054] Specifically, the operator controls the water pump 5 to operate, so that the cooling water circulates in the water tank 4 and the cooling cavity 2 through the operation of the water pump 5 , thereby facilitating cooling of the rotating core body 1 .

[0055] Reference Figures 1-4The cooling mechanism includes a support shell 7, a heat exchange tube 8 and a heat exchange mechanism. The support shell 7 is arranged in an annular shape. Two support shells 7 are arranged in the first cavity. A support column is fixedly arranged between the support shell 7 and the inner wall of the first cavity. The return pipe 6 is connected to one of the support shells 7, and a connecting pipe is arranged between the other support shell 7 and the inner wall of the water tank 4. A plurality of heat exchange tubes 8 are connected and rotatably arranged between the two support shells 7. The heat exchange mechanism is arranged in the first cavity for exchanging heat with the cooling water in the heat exchange tube 8. The heat exchange mechanism includes a blowing pipe 9, a fan 10, a first rotary The air blowing pipe 9 is provided in the first cavity, and the two ends of the air blowing pipe 9 are respectively connected to the side wall of the first cavity for rotation. The side wall of the air blowing pipe 9 is provided with a plurality of air blowing outlets. The fan 10 is provided on one side of the water tank 4. A first air inlet pipe 11 is provided between the output end of the fan 10 and the air blowing pipe 9. The input end of the fan 10 is connected to the external environment. The first rotating mechanism is provided in the water tank 4 for controlling the rotation of the air blowing pipe 9. The second rotating mechanism is provided in the first cavity for controlling the rotation of the heat exchange tube 8. A plurality of air outlets are provided on the inner top wall of the first cavity.

[0056] Specifically, in the process of cooling water passing through the heat exchange tube 8, the operator controls the operation of the fan 10, blows air into the cavity of the blowing pipe 9 through the operation of the fan 10, and then blows air to the surface of the heat exchange tube 8 through the blowing port, thereby facilitating heat exchange between the cooling water and the airflow through the heat exchange tube 8, and then cooling the cooling water.

[0057] Reference Figure 3 and Figure 4 The first rotating mechanism includes a first annular rack 12, a first gear 13 and a first motor 14. The first annular rack 12 is fixedly provided on the blowing pipe 9. The first gear 13 is rotatably provided on the side wall of the first cavity. The first gear 13 is meshed with the first annular rack 12. The first motor 14 is fixedly provided on the water tank 4. The output end of the first motor 14 is fixedly connected to the first gear 13. The second rotating mechanism includes a second gear 15 and a second annular rack 16. A mounting port is provided on the second gear 15. The second gear 15 is sleeved on the blowing pipe 9 through the mounting port. The side wall of the mounting port is fixedly connected to the side wall of the blowing pipe 9. The second annular rack 16 is fixedly provided on the side wall of the heat exchange tube 8. The second annular rack 16 is meshed with the second gear 15. The side walls of the blowing pipe 9 are evenly covered with cleaning bristles, which are in contact with the heat exchange tube 8. A filter is provided at the input end of the fan 10, and a plurality of cooling fins are fixedly provided on the side walls of the heat exchange tube 8.

[0058] Specifically, the operator controls the operation of the first motor 14, and the operation of the first motor 14 can control the rotation of the first gear 13. At the same time, the engagement of the first gear 13 with the first annular rack 12 drives the blowing pipe 9 and the second gear 15 to rotate. At the same time, the engagement of the second gear 15 with the second annular rack 16 drives the heat exchange tube 8 to rotate, so that air can be blown to different positions of the heat exchange tube 8, thereby improving the heat exchange efficiency.

[0059] Reference Figure 3 , also includes an auxiliary cooling mechanism, which is arranged in the water tank 4 for auxiliary cooling of the cooling water. The auxiliary cooling mechanism includes a heat exchange shell 17, a heat conducting pipe 18, a second air inlet pipe 19 and an air outlet pipe. The heat exchange shell 17 is fixedly provided on the inner top wall and the inner bottom wall of the water tank 4. A plurality of heat conducting pipes 18 are connected between the two heat exchange shells 17. The second air inlet pipe 19 is connected between one of the heat exchange shells 17 and the first air inlet pipe 11. The air outlet pipe is arranged through the side wall of the water tank 4 and is connected to the other heat exchange shell 17.

[0060] Specifically, the fan 10 blows air into the heat exchange shell 17 and the heat pipe 18, so that the cooling water in the water tank 4 further exchanges heat with the air flow through the heat pipe 18, thereby facilitating further cooling of the cooling water.

[0061] In this embodiment, when in use, the operator controls the water pump 5 to operate, and the operation of the water pump 5 causes the cooling water to circulate in the water tank 4 and the cooling cavity 2, thereby facilitating the cooling of the rotating core body 1. In the process of the cooling water passing through the heat exchange tube 8, the operator controls the fan 10 to operate, and the fan 10 blows the cooling water into the cavity toward the blowing pipe 9, and then blows air toward the surface of the heat exchange tube 8 through the blowing port, thereby facilitating the heat exchange between the cooling water and the airflow through the heat exchange tube 8, thereby cooling the cooling water. At the same time, the operator controls the first motor 14 to operate, and the operation of the first motor 14 can control the first gear 13 to rotate At the same time, the engagement of the first gear 13 and the first annular rack 12 drives the blowing pipe 9 and the second gear 15 to rotate, and the engagement of the second gear 15 and the second annular rack 16 drives the heat exchange tube 8 to rotate, so that air can be blown to different positions of the heat exchange tube 8, thereby improving the heat exchange efficiency. The fan 10 can also blow air into the heat exchange shell 17 and the heat conducting pipe 18, so that the cooling water in the water tank 4 can further exchange heat with the airflow through the heat conducting pipe 18, thereby facilitating further cooling of the cooling water, thereby cooling the cooling water, and thus improving the cooling effect of the cooling water on the rotating core body 1.

[0062] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rotating core water cooling structure for an injection mold, characterized in that: include: Rotating core body (1); A cooling cavity (2), the cooling cavity (2) being provided in the rotating core body (1); A water inlet pipe (3), the water inlet pipe (3) is arranged to penetrate the inner bottom wall of the cooling cavity (2), and the water inlet pipe (3) is sealed at one end away from the rotating core body (1); A water tank (4), the water tank (4) being arranged on one side of the rotating core body (1), the water tank (4) being filled with cooling water, and a first cavity being arranged in the water tank (4); A cooling mechanism, the cooling mechanism being arranged in the first cavity and being in communication with the inner wall of the water tank (4) for cooling the returning cooling water; A water pump (5), wherein an input end of the water pump (5) is connected to the water tank (4), and an output end of the water pump (5) is connected to the water inlet pipe (3); A return pipe (6), the return pipe (6) being arranged in communication between the cooling mechanism and the cooling cavity (2).

2. The water-cooling structure for the rotating core of an injection mold according to claim 1, characterized in that: The cooling mechanism comprises: A support shell (7), the support shell (7) is arranged in an annular shape, two support shells (7) are arranged in the first cavity, and a support column is fixedly arranged between the support shell (7) and the inner wall of the first cavity; The return pipe (6) is in communication with one of the support shells (7), and a connecting pipe is provided between the other support shell (7) and the inner wall of the water tank (4); Heat exchange tubes (8), a plurality of heat exchange tubes (8) are rotatably arranged between the two support shells (7); A heat exchange mechanism is provided in the first cavity and is used for exchanging heat with the cooling water in the heat exchange tube (8).

3. The water-cooling structure for the rotating core of an injection mold according to claim 2, wherein: The heat exchange mechanism comprises: A blowing pipe (9), the blowing pipe (9) is arranged in the first cavity, both ends of the blowing pipe (9) are rotatably connected to the side wall of the first cavity, and the side wall of the blowing pipe (9) is provided with a plurality of blowing ports; A fan (10), the fan (10) being arranged on one side of the water tank (4), a first air inlet pipe (11) being arranged between an output end of the fan (10) and the blowing pipe (9), and an input end of the fan (10) being in communication with the external environment; a first rotating mechanism, the first rotating mechanism being arranged in the water tank (4) and being used to control the rotation of the blowing pipe (9); a second rotating mechanism, the second rotating mechanism being arranged in the first cavity and being used to control the rotation of the heat exchange tube (8); Air outlets, a plurality of the air outlets are provided on the inner top wall of the first cavity.

4. The water-cooling structure for the rotating core of an injection mold according to claim 3, characterized in that: The first rotating mechanism comprises: a first annular rack (12), the first annular rack (12) being fixedly arranged on the blowing pipe (9); a first gear (13), the first gear (13) being rotatably disposed on the side wall of the first cavity, the first gear (13) being meshed with the first annular rack (12); A first motor (14), wherein the first motor (14) is fixedly disposed on the water tank (4), and an output end of the first motor (14) is fixedly connected to the first gear (13).

5. The water-cooling structure for the rotating core of an injection mold according to claim 4, characterized in that: The second rotating mechanism includes: A second gear (15), wherein a mounting opening is provided on the second gear (15), and the second gear (15) is sleeved on the blowing pipe (9) through the mounting opening, and a side wall of the mounting opening is fixedly connected to a side wall of the blowing pipe (9); A second annular rack (16), the second annular rack (16) is fixedly arranged on the side wall of the heat exchange tube (8), and the second annular rack (16) is meshed with the second gear (15).

6. The water-cooling structure for the rotating core of an injection mold according to claim 5, characterized in that: The side walls of the blowing pipe (9) are evenly covered with cleaning bristles, and the cleaning bristles are in contact with the heat exchange pipe (8).

7. The water-cooling structure for the rotating core of an injection mold according to claim 6, characterized in that: The input end of the fan (10) is provided with a filter.

8. The water-cooling structure for the rotating core of an injection mold according to claim 7, characterized in that: It also includes an auxiliary cooling mechanism, which is arranged in the water tank (4) and is used to assist in cooling the cooling water. The auxiliary cooling mechanism includes: A heat exchange shell (17), the heat exchange shell (17) being fixedly provided on the inner top wall and the inner bottom wall of the water tank (4); A heat conducting pipe (18), wherein a plurality of the heat conducting pipes (18) are arranged in communication between the two heat exchange shells (17); a second air inlet pipe (19), the second air inlet pipe (19) being arranged in communication between one of the heat exchange shells (17) and the first air inlet pipe (11); An air outlet pipe is provided on the side wall of the water tank (4) and is in communication with the other heat exchange shell (17).

9. The water-cooling structure for the rotating core of an injection mold according to claim 8, characterized in that: A plurality of heat dissipation fins are fixedly arranged on the side wall of the heat exchange tube (8).

10. The water-cooling structure for the rotating core of an injection mold according to claim 9, characterized in that: A handle is fixedly provided on the side wall of the water tank (4).

Images