Injection molding machine mold cooling assembly

Abstract

The utility model discloses an injection molding machine mold cooling assembly which comprises a fixed water passing column which is fixedly arranged and a rotary water passing column which is rotationally arranged, and the rotary water passing column and the fixed water passing column are sealed and rotationally connected; the fixed water passing column is provided with a fixed channel, the rotating water passing column is provided with a rotating channel, and the rotating channel is communicated with the fixed channel. The mold cooling assembly of the injection molding machine is reasonable in structure, the cooling assembly can normally supply cooling liquid to the rotating mold on the rotating disc, and normal cooling of the mold is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a cooling component for injection molding machine molds. Background Technology

[0002] Injection molding refers to the process of injecting molten material under high pressure into a mold cavity, where it is then cooled and solidified to obtain a molded product. An injection mold is the mold used to perform the injection molding process. Existing injection molds often only allow for single-color injection, resulting in a very limited range of products. With continuous societal development and rising living standards, the demand for diverse products is increasing, thus leading to the emergence of two-color injection molding.

[0003] Existing two-color injection molding, as described in CN202016159U, includes a movable carriage wall, a rotary table located in front of the movable carriage wall and connected to the movable carriage wall, a servo motor located above the movable carriage wall and connected to the movable carriage wall, and a reducer located between the rotary table and the servo motor.

[0004] The above injection molding method only describes the rotation of the rotary table, but the structure of the cooling part, one of the key steps in mold injection, is not specifically described. It is unclear how to ensure the normal rotation of the rotary table without affecting the normal flow of cooling water.

[0005] Therefore, it is necessary to improve the existing injection molding machine mold cooling components. Utility Model Content

[0006] The purpose of this invention is to overcome the defects in the existing technology and provide a cooling component for injection molding machine molds. The cooling component can supply coolant to the rotating mold on the turntable to ensure normal cooling of the mold.

[0007] To achieve the above technical effects, the technical solution of this utility model is as follows: a cooling assembly for an injection molding machine mold, comprising a mounting plate, a turntable rotatably connected to the mounting plate, and a drive assembly for driving the turntable to rotate 180 degrees, the turntable being used to mount a rotating mold; a cooling assembly for supplying coolant to the rotating mold is provided between the mounting plate and the turntable, the cooling assembly comprising a fixed water column fixedly connected to the mounting plate and a rotating water column fixedly connected to the turntable, the rotating water column being sealed to and rotatably connected to the fixed water column; the fixed water column being provided with a fixed channel communicating with the water channel of the mounting plate, the rotating water column being provided with a rotating channel communicating with the water distribution drain of the turntable, the rotating channel being configured to communicate with the fixed channel.

[0008] According to one embodiment of the present invention, the driving assembly includes a drive motor and a gear. The drive motor is fixedly connected to the mounting plate, and the gear is driven to rotate by the drive motor. The outer periphery of the turntable is provided with transmission teeth that mesh with the gear.

[0009] According to one embodiment of the present invention, the mounting plate is provided with an anti-deviation component for limiting the turntable to be positioned on the mounting plate.

[0010] According to one embodiment of the present invention, the anti-deviation component includes a column fixedly connected to the mounting plate and a limiting roller rotatably connected to the column. The rotation axis of the limiting roller is perpendicular to the rotation axis of the turntable. Several columns and limiting rollers are arranged along the circumference of the turntable.

[0011] According to one embodiment of the present invention, the turntable is provided with a stepped layer, the circumferential surface of the limiting roller is abutted against the stepped layer, and the limiting roller does not protrude from the surface of the turntable.

[0012] According to one embodiment of the present invention, the mounting plate is rotatably provided with a support roller, the rotation axis of the support roller is parallel to the rotation axis of the turntable, the support roller is disposed below the turntable, and the circumferential surface of the support roller abuts against the side wall of the stepped layer.

[0013] According to one embodiment of the present invention, a limiting component for limiting the turntable to the injection position is provided between the turntable and the mounting plate.

[0014] According to one embodiment of the present invention, the limiting component includes a limiting protrusion slidably connected to the mounting plate, a cylinder for driving the limiting protrusion to slide, and a limiting groove disposed on the side wall of the turntable. The limiting protrusion and the limiting groove are mutually limiting and engaged, and two limiting grooves are symmetrically arranged.

[0015] According to one embodiment of the present invention, the rotating water column and the water distribution drain are connected by a water pipe, and the turntable is provided with a water source pipe groove for accommodating the water pipe.

[0016] According to one embodiment of the present invention, the water source pipe trench is provided with a bend to avoid the installation hole and the positioning hole.

[0017] According to one embodiment of the present invention, the fixed water column is provided with a cavity, the rotating water column includes a connecting column and a connecting plate, the connecting column is rotatably disposed in the cavity, the connecting column is rotatably connected to the fixed water column through a bearing, and the connecting plate is disposed outside the cavity and fixedly connected to the turntable.

[0018] According to one embodiment of the present invention, the water channel includes a cooling water inlet channel and a cooling water return channel, and the fixed channel includes a first channel and a second channel, wherein the first channel is connected to the cooling water inlet channel and the second channel is connected to the cooling water return channel.

[0019] According to one embodiment of the present invention, the cavity includes a first water cavity and a second water cavity spaced apart along its axial direction. The first water cavity is provided with a first water inlet communicating with the first channel, and the second water cavity is provided with a second water return outlet communicating with the second channel.

[0020] According to one embodiment of the present invention, the rotating channel includes a third channel and a fourth channel, the connecting column is provided with a third water inlet and a fourth water outlet, and the connecting plate is provided with a fifth water outlet and a sixth water return outlet. The third water inlet and the fifth water outlet are respectively located at both ends of the third channel, and the third water inlet is connected to the first water cavity; the fourth water outlet and the sixth water return outlet are respectively located at both ends of the fourth channel, and the fourth water outlet is connected to the second water cavity.

[0021] According to one embodiment of the present invention, the mounting plate is provided with a first air passage, and the fixed water column is provided with a second air passage communicating with the first air passage; the cavity includes an air chamber, and the air chamber, the first water chamber, and the second water chamber are all spaced apart along the axial direction of the fixed water column, and the air chamber is provided with a first air outlet communicating with the second air passage.

[0022] According to one embodiment of the present invention, the rotating water column is provided with a third air passage, the connecting column is provided with a second air inlet, and the connecting plate is provided with a third air outlet. The second air inlet and the third air outlet are respectively located at both ends of the third air passage, and the second air inlet is connected to the air cavity.

[0023] According to one embodiment of the present invention, the turntable is provided with an air distribution row that communicates with the third air outlet, the third air outlet and the air distribution row are connected by an air pipe, and the turntable is provided with an air source pipe groove for accommodating the air pipe.

[0024] According to one embodiment of the present invention, a water seal cavity is provided between any two of the air cavity, the first water cavity, and the second water cavity.

[0025] The advantages and beneficial effects of this utility model are as follows: The cooling component of the injection molding machine mold of this utility model has a reasonable structure. By setting a fixed water column and a rotating water column, the rotating water column is sealed and rotatably connected to the fixed water column. The external cooling water passes through the fixed water column and the rotating water column in sequence to the rotating mold, which ensures the normal supply of coolant. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an embodiment of the injection molding machine mold cooling assembly of this utility model;

[0027] Figure 2 yes Figure 1 An explosion diagram;

[0028] Figure 3 This is a schematic diagram of the turntable's structure;

[0029] Figure 4 This is a cross-sectional view of the mounting plate;

[0030] Figure 5 This is a schematic diagram of the cooling component.

[0031] Figure 6 yes Figure 5 An explosion diagram;

[0032] Figure 7 yes Figure 5 A sectional view;

[0033] Figure 8 This is a cross-sectional view of a fixed water column;

[0034] Figure 9 This is a cross-sectional view of a fixed water column (from another perspective);

[0035] Figure 10 This is a cross-sectional view (from another perspective) of a fixed water column;

[0036] Figure 11 This is a schematic diagram of the rotating water column;

[0037] Figure 12 This is a schematic diagram of the rotating water column (from another perspective);

[0038] Figure 13 It is a cross-sectional view of a rotating water column;

[0039] In the diagram: 1. Mounting plate; 11. Column; 12. Limiting roller; 13. Supporting roller; 14. Limiting protrusion; 15. Cylinder; 16. Cooling water inlet channel; 17. Cooling water return channel; 18. First air passage; 2. Turntable; 21. Transmission gear; 22. Step layer; 23. Limiting groove; 24. Water distribution drain; 25. Water source pipe groove; 251. Bend; 26. Air distribution drain; 27. Air source pipe groove; 3. Fixed water column; 31. First channel; 32. Second channel; 33. Bearing; 34. First water chamber; 341. First water inlet; 35. Second water chamber; 351. Second water return outlet; 36. Second air passage; 37. Air chamber; 371. First air outlet; 38. Water seal chamber; 4. Rotate the water column; 41. Connecting column; 411. Third water inlet; 412. Fourth water outlet; 413. Second air inlet; 42. Connecting plate; 421. Fifth water outlet; 422. Sixth water return outlet; 423. Third air outlet; 43. Third channel; 44. Fourth channel; 45. Third air passage; 5. Drive motor; 51. Gear. Detailed Implementation

[0040] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model. Example

[0041] like Figure 1-13 As shown, the injection molding machine mold cooling assembly of this embodiment includes a mounting plate 1, a turntable 2 rotatably connected to the mounting plate 1, and a drive assembly for driving the turntable 2 to rotate 180 degrees. The turntable 2 is used to mount a rotating mold. A cooling assembly for supplying coolant to the rotating mold is provided between the mounting plate 1 and the turntable 2. The cooling assembly includes a fixed water column 3 fixedly connected to the mounting plate 1 and a rotating water column 4 fixedly connected to the turntable 2. The rotating water column 4 is sealed to the fixed water column 3 and rotatably connected. The fixed water column 3 is provided with a fixed channel communicating with the water channel of the mounting plate 1, and the rotating water column 4 is provided with a rotating channel communicating with the water distribution drain 24 of the turntable 2. The rotating channel is connected to the fixed channel.

[0042] With this design, the coolant flows from the mounting plate 1 to the fixed water column 3, then to the rotating water column 4, and finally into the water distribution drain 24 of the turntable 2. Because the rotating water column 4 and the fixed water column 3 rotate and are sealed together, the flow of coolant is not affected, and coolant leakage is avoided. This ensures that the turntable 2 rotates normally while the cooling components can operate normally.

[0043] According to one embodiment of the present invention, the driving assembly includes a driving motor 5 and a gear 51. The driving motor 5 is fixedly connected to the mounting plate 1. The gear 51 is driven to rotate by the driving motor 5. The outer periphery of the turntable 2 is provided with transmission teeth 21 that mesh with the gear 51.

[0044] This design achieves the goal of rotating turntable 2.

[0045] According to one embodiment of the present invention, the mounting plate 1 is provided with an anti-deviation component for limiting the turntable 2 on the mounting plate 1.

[0046] With this design, since turntable 2 is in a vertical position during normal operation, that is, the axis of turntable 2 is horizontal, the anti-deviation component can prevent turntable 2 from deviating during long-term rotation.

[0047] According to one embodiment of the present invention, the anti-deviation component includes a column 11 fixedly connected to the mounting plate 1 and a limiting roller 12 rotatably connected to the column 11. The rotation axis of the limiting roller 12 is perpendicular to the rotation axis of the turntable 2. A plurality of columns 11 and limiting rollers 12 are arranged along the circumference of the turntable 2.

[0048] With this design, the limiting roller 12 can keep the surface of the turntable 2 in a vertical position at all times.

[0049] According to one embodiment of the present invention, the turntable 2 is provided with a stepped layer 22, the circumferential surface of the limiting roller 12 is abutted against the stepped layer 22, and the limiting roller 12 is not protruding from the surface of the turntable 2.

[0050] With this design, the roller 12 is located in the stepped layer 22, which avoids the roller 12 protruding from the surface of the turntable 2, thus preventing it from affecting the normal operation of the product and the assembly of the rotating mold.

[0051] According to one embodiment of the present invention, the mounting plate 1 is rotatably provided with a support roller 13, the rotation axis of the support roller 13 is parallel to the rotation axis of the turntable 2, the support roller 13 is disposed below the turntable 2, and the circumferential surface of the support roller 13 abuts against the side wall of the step layer 22.

[0052] With this design, the support roller 13 can bear the weight, reduce the gravity on the shaft of turntable 2, and extend the service life of the shaft of turntable 2.

[0053] According to one embodiment of the present invention, a limiting component for limiting the turntable 2 to the injection molding position is provided between the turntable 2 and the mounting plate 1.

[0054] This design improves the stability of injection molding using rotating molds.

[0055] According to one embodiment of the present invention, the limiting component includes a limiting protrusion 14 slidably connected to the mounting plate 1, a cylinder 15 for driving the limiting protrusion 14 to slide, and a limiting groove 23 disposed on the side wall of the turntable 2. The limiting protrusion 14 and the limiting groove 23 are mutually limiting and cooperating, and there are two limiting grooves 23 symmetrically arranged.

[0056] With this design, when the turntable 2 rotates to the injection position, the cylinder 15 pushes the limiting protrusion 14 into the limiting groove 23 to fix the position of the turntable 2 and prevent the turntable 2 from rotating during the injection process.

[0057] According to one embodiment of the present invention, the rotating water column 4 and the water distribution drain 24 are connected by a water pipe, and the turntable 2 is provided with a water source pipe groove 25 for accommodating the water pipe.

[0058] This design prevents the water pipe from protruding beyond the surface of turntable 2.

[0059] According to one embodiment of the present invention, the water source pipe trench 25 is provided with a bend 251 for avoiding the installation hole and the positioning hole.

[0060] This design ensures that the rotating mold is connected to the turntable 2 via the mounting holes and positioning holes.

[0061] According to one embodiment of the present invention, the fixed water column 3 is provided with a cavity, and the rotating water column 4 includes a connecting column 41 and a connecting plate 42. The connecting column 41 is rotatably disposed in the cavity, and the connecting column 41 is rotatably connected to the fixed water column 3 through a bearing 33. The connecting plate 42 is disposed outside the cavity and is fixedly connected to the turntable 2.

[0062] This design achieves the goal of rotatably connecting the rotating water column 4 with the fixed water column 3.

[0063] According to one embodiment of the present invention, the water channel includes a cooling water inlet channel 16 and a cooling water return channel 17, and the fixed channel includes a first channel 31 and a second channel 32. The first channel 31 is connected to the cooling water inlet channel 16, and the second channel 32 is connected to the cooling water return channel 17.

[0064] This design achieves the goal of closed-loop cooling water circulation.

[0065] According to one embodiment of the present invention, the cavity includes a first water cavity 34 and a second water cavity 35 arranged at intervals along its axial direction. The first water cavity 34 is provided with a first water inlet 341 communicating with the first channel 31, and the second water cavity 35 is provided with a second water outlet 351 communicating with the second channel 32.

[0066] With this design, cooling water can flow into the first water chamber 34 or the second water chamber 35.

[0067] According to one embodiment of the present invention, the rotating channel includes a third channel 43 and a fourth channel 44. The connecting column 41 is provided with a third water inlet 411 and a fourth water outlet 412. The connecting plate 42 is provided with a fifth water outlet 421 and a sixth water return outlet 422. The third water inlet 411 and the fifth water outlet 421 are respectively located at both ends of the third channel 43. The third water inlet 411 is connected to the first water cavity 34. The fourth water outlet 412 and the sixth water return outlet 422 are respectively located at both ends of the fourth channel 44. The fourth water outlet 412 is connected to the second water cavity 35.

[0068] With this design, external cooling water flows into the first channel 31 from the cooling water inlet channel 16 and enters the first water chamber 34 from the first water inlet 341. The first water chamber 34 is filled with cooling water. The cooling water can always flow into the third channel 43 from the third water inlet 411 of the connecting column 41, and flow out from the fifth water outlet 421. It then flows through the water pipe to the water distribution outlet 24 and finally supplies cooling water to the mold.

[0069] Cooling water return: The cooling water of the mold flows to the sixth return port 422 through the water distribution outlet 24, flows out from the fifth outlet 421 through the fourth channel 44 and enters the second water chamber 35, then flows into the second channel 32 from the second return port 351 and is discharged from the cooling water return channel 17.

[0070] According to one embodiment of the present invention, the mounting plate 1 is provided with a first air passage 18, and the fixed water column 3 is provided with a second air passage 36 communicating with the first air passage 18; the cavity includes an air chamber 37, the air chamber 37, the first water chamber 34, and the second water chamber 35 are evenly spaced along the axial direction of the fixed water column 3, and the air chamber 37 is provided with a first air outlet 371 communicating with the second air passage 36.

[0071] This design ensures the normal input of the pneumatic power source.

[0072] According to one embodiment of the present invention, the rotating water column 4 is provided with a third air passage 45, the connecting column 41 is provided with a second air inlet 413, and the connecting plate 42 is provided with a third air outlet 423. The second air inlet 413 and the third air outlet 423 are respectively located at both ends of the third air passage 45, and the second air inlet 413 is connected to the air chamber 37.

[0073] According to one embodiment of the present invention, the turntable 2 is provided with an air distribution row 26 that communicates with the third air outlet 423. The third air outlet 423 and the air distribution row 26 are connected by an air pipe. The turntable 2 is provided with an air source pipe groove 27 for accommodating the air pipe.

[0074] According to one embodiment of the present invention, a water seal cavity 38 is provided between any two of the air cavity 37, the first water cavity 34, and the second water cavity 35.

[0075] With this design, the air chamber 37, the first water chamber 34, and the second water chamber 35 are isolated from each other, which improves the sealing performance of the air chamber 37, the first water chamber 34, and the second water chamber 35.

[0076] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An injection molding machine mold cooling assembly characterized by, The fixed water passing column (3) is provided with a fixed channel, and the rotating water passing column (4) is provided with a rotating channel, and the rotating channel is provided in communication with the fixed channel; the fixed water passing column (3) is provided with a cavity, and the rotating water passing column (4) comprises a connecting column (41) and a connecting disc (42), the connecting column (41) is rotatably arranged in the cavity, the connecting column (41) is rotatably connected with the fixed water passing column (3) through a bearing (33), and the connecting disc (42) is arranged outside the cavity.

2. The injection molding machine mold cooling assembly of claim 1, wherein, The fixed channel comprises a first channel (31) and a second channel (32), the first channel (31) is provided in communication with a cooling water inlet channel (16), and the second channel (32) is provided in communication with a cooling water return channel (17).

3. The injection molding machine mold cooling assembly of claim 2, wherein, The cavity comprises a first water cavity (34) and a second water cavity (35) which are arranged in an axial direction, the first water cavity (34) is provided with a first water inlet (341) in communication with the first channel (31), and the second water cavity (35) is provided with a second water return (351) in communication with the second channel (32).

4. The injection molding machine mold cooling assembly of claim 3, wherein, The rotating channel comprises a third channel (43) and a fourth channel (44), the connecting column (41) is provided with a third water inlet (411) and a fourth water outlet (412), the connecting disc (42) is provided with a fifth water outlet (421) and a sixth water return (422), the third water inlet (411) and the fifth water outlet (421) are arranged at two ends of the third channel (43), and the third water inlet (411) is arranged in communication with the first water cavity (34); the fourth water outlet (412) and the sixth water return (422) are arranged at two ends of the fourth channel (44), and the fourth water outlet (412) is arranged in communication with the second water cavity (35).

5. The injection molding machine mold cooling assembly of claim 4, wherein, The fixed water passing column (3) is provided with a second air duct (36) in communication with the first air duct (18); the cavity comprises an air cavity (37), the air cavity (37) is arranged in an axial direction of the fixed water passing column (3) and is spaced apart from the first water cavity (34) and the second water cavity (35), and the air cavity (37) is provided with a first air outlet (371) in communication with the second air duct (36).

6. The injection molding machine mold cooling assembly of claim 5, wherein, The rotating water passing column (4) is provided with a third air duct (45), the connecting column (41) is provided with a second air inlet (413), the connecting disc (42) is provided with a third air outlet (423), the second air inlet (413) and the third air outlet (423) are arranged at two ends of the third air duct (45), and the second air inlet (413) is arranged in communication with the air cavity (37).

7. The injection molding machine mold cooling assembly of claim 5, wherein, The air cavity (37), the first water cavity (34) and the second water cavity (35) are provided with a water seal cavity (38) between any two thereof.

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