Rotating assembly for injection mold of injection molding machine

Abstract

The invention discloses an injection mold rotating assembly of an injection molding machine. The injection mold rotating assembly comprises a mounting plate, a rotating disc rotationally connected with the mounting plate and a driving assembly for driving the rotating disc to perform 180-degree reversing, and the rotating disc is used for mounting a rotating mold; a cooling assembly used for supplying cooling liquid to the rotating mold is arranged between the mounting plate and the rotating disc, the cooling assembly comprises a fixed water passing column fixedly connected with the mounting plate and a rotating water passing column fixedly connected with the rotating disc, and the rotating 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 communicated with the water channel of the mounting plate, the rotating water passing column is provided with a rotating channel communicated with the water distribution row of the rotating disc, and the rotating channel is communicated with the fixed channel. The injection mold rotating assembly of the injection molding machine is reasonable in structure, and the cooling assembly can work normally while normal rotation of the rotating disc is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, and in particular to an injection mold rotating assembly of an injection molding machine. Background Art

[0002] Injection molding refers to injecting heated and molten materials into the mold cavity under high pressure, and obtaining a molded product after cooling and solidification. Injection mold refers to the mold that completes the injection molding action. Existing injection molds can often only perform single-color injection, so the products obtained are often very limited. With the continuous development of society and the continuous improvement of human living standards, the requirements for product types are getting higher and higher, so two-color injection molding came into being.

[0003] The existing two-color injection molding, as described in CN202016159U, includes a movable vehicle wall, a turntable arranged in front of the movable vehicle wall and connected to the movable vehicle wall, a servo motor arranged above the movable vehicle wall and connected to the movable vehicle wall, and a reducer arranged between the turntable and the servo motor.

[0004] The above-mentioned injection molding method only describes the rotation of the turntable, but one of the key steps of mold injection molding: the structure of the cooling part is not specifically described. It is not clear how to ensure the normal rotation of the turntable without affecting the normal flow of the cooling water channel.

[0005] Therefore, it is necessary to improve the injection mold rotating assembly of the injection molding machine in the prior art. Summary of the invention

[0006] The purpose of the present invention is to overcome the defects in the prior art and provide an injection molding machine injection mold rotating assembly to ensure that the turntable rotates normally while the cooling assembly can operate normally.

[0007] To achieve the above technical effects, the technical solution of the present invention is: an injection molding machine injection mold rotating assembly, comprising a mounting plate, a turntable rotatably connected to the mounting plate, and a driving assembly for driving the turntable to perform 180-degree reversal, the turntable being used to mount a rotating mold; a cooling assembly for supplying coolant to the rotating mold is arranged between the mounting plate and the turntable, the cooling assembly comprising a fixed water column fixedly connected to the mounting plate, a rotating water column fixedly connected to the turntable, the rotating water column being sealed and rotatably connected to the fixed water column; the fixed water column is provided with a fixed channel communicated with the water channel of the mounting plate, the rotating water column is provided with a rotating channel communicated with the water diversion row of the turntable, and the rotating channel is arranged to communicate with the fixed channel.

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

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

[0010] According to one embodiment of the present invention, the anti-deviation assembly includes a column fixedly connected to the mounting plate and a limiting roller rotatably connected to the column, the axis centerline direction of the rotating shaft of the limiting roller is perpendicular to the axis centerline direction of the rotating shaft of the turntable; a plurality of the 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 step layer, the circumferential surface of the limiting roller is arranged in contact with the step layer, and the limiting roller is not arranged to protrude from the disk surface of the turntable.

[0012] According to one embodiment of the present invention, the mounting plate is rotatably provided with a support roller, the axis centerline direction of the rotation axis of the support roller is parallel to the axis centerline direction of the rotation axis of the turntable, the support roller is arranged below the turntable, and the circumferential surface of the support roller is arranged in contact with the side wall of the step layer.

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

[0014] According to one embodiment of the present invention, the limiting assembly includes a limiting boss slidably connected to the mounting plate, a cylinder driving the limiting boss to slide, and a limiting groove arranged on the side wall of the turntable, the limiting boss and the limiting groove are limitedly matched, and two limiting grooves are symmetrically arranged.

[0015] According to one embodiment of the present invention, the rotating water-passing column is connected to the water-dividing row through a water pipe, and the rotating disk 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 groove is provided with a bend for avoiding the installation hole and the positioning hole.

[0017] According to one embodiment of the present invention, the fixed water-passing column is provided with a cavity, and the rotating water-passing column includes a connecting column and a connecting disk, the connecting column is rotatably arranged in the cavity, the connecting column is rotatably connected to the fixed water-passing column through a bearing, and the connecting disk is arranged 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, 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 port 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, the connecting plate is provided with a fifth water outlet and a sixth water return port, the third water inlet and the fifth water outlet are respectively arranged at two ends of the third channel, and the third water inlet is communicated with the first water cavity; the fourth water outlet and the sixth water return port are respectively arranged at two ends of the fourth channel, and the fourth water outlet is communicated with the second water cavity.

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

[0022] According to one embodiment of the present invention, the rotating water-passing column is provided with a third air channel, 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 provided at both ends of the third air channel, and the second air inlet is communicated with the air cavity.

[0023] According to one embodiment of the present invention, an air distribution row connected to the third air outlet is provided on the turntable, the third air outlet and the air distribution row are connected through 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 the present invention are as follows: the injection molding machine injection mold rotating assembly has a reasonable structure, and by arranging a fixed water column and a rotating water column, the rotating water column is sealed and rotatably connected to the fixed water column, thereby ensuring that the turntable rotates normally while the cooling assembly can operate normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of an embodiment of an injection mold rotating assembly of an injection molding machine of the present invention; Figure 2 yes Figure 1 Explosion diagram of Figure 3 It is a schematic diagram of the structure of the turntable; Figure 4 is a cross-sectional view of the mounting plate; Figure 5 is a schematic diagram of the structure of the cooling assembly; Figure 6 yes Figure 5 Explosion diagram of Figure 7 yes Figure 5 A cross-sectional view of Figure 8 It is a cross-sectional view of a fixed water column; Fig. 9 It is a cross-sectional view of a fixed water column (from another perspective); Fig.10 It is a cross-sectional view of a fixed water column (another viewing angle); Fig.11 It is a schematic diagram of the structure of a rotating water column; Fig.12 This is a schematic diagram of the structure of the rotating water column (from another perspective); Fig.13 is a cross-sectional view of a rotating water column; In the figure: 1, mounting plate; 11, column; 12, limiting roller; 13, supporting roller; 14, limiting boss; 15, cylinder; 16, cooling water inlet channel; 17, cooling water return channel; 18, first air channel; 2, turntable; 21, transmission gear; 22, step layer; 23, limiting groove; 24, water distribution row; 25, water source pipe groove; 251, bend; 26, air distribution row; 27, air source pipe groove; 3, fixed water column; 31, first channel; 32, second channel; 33, bearing; 34, first water cavity; 341, first water inlet; 35, second water cavity; 351, second water return port; 36, second air channel; 37, air cavity; 371, first air outlet; 38, water seal cavity; 4. Rotating water-passing 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 channel; 5. Driving motor; 51. Gear. DETAILED DESCRIPTION

[0027] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention. Example

[0028] like Figure 1-13 As shown, the injection molding machine injection mold rotating assembly of the embodiment includes a mounting plate 1, a turntable 2 rotatably connected to the mounting plate 1, and a driving assembly for driving the turntable 2 to perform 180-degree reversal, wherein the turntable 2 is used to mount a rotating mold; a cooling assembly for supplying coolant to the rotating mold is arranged between the mounting plate 1 and the turntable 2, and 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, wherein the rotating water column 4 is sealed and rotatably connected to the fixed water column 3; the fixed water column 3 is provided with a fixed channel communicated with the water channel of the mounting plate 1, and the rotating water column 4 is provided with a rotating channel communicated with the water distribution row 24 of the turntable 2, and the rotating channel is arranged to communicate with the fixed channel.

[0029] With such a 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 row 24 of the turntable 2. Because the rotating water column 4 rotates and is sealed with the fixed water column 3, it does not affect the circulation of the coolant and avoids leakage of the coolant, thereby ensuring that the turntable 2 rotates normally and the cooling assembly can operate normally.

[0030] 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 a transmission tooth 21 meshing with the gear 51.

[0031] Through such a design, the purpose of rotating the turntable 2 is achieved.

[0032] According to one embodiment of the present invention, the mounting plate 1 is provided with an anti-deflection component for limiting the turntable 2 on the mounting plate 1 .

[0033] With such a design, since the turntable 2 is in a vertical state during normal operation, that is, the axis of the turntable 2 is horizontal, the anti-deviation component can prevent the turntable 2 from deviating due to long-term rotation.

[0034] According to one embodiment of the present invention, the anti-bias component includes a column 11 fixedly connected to the mounting plate 1 and a limiting roller 12 rotatably connected to the column 11, and the axis centerline direction of the rotation axis of the limiting roller 12 is perpendicular to the axis centerline direction of the rotation axis of the turntable 2; a plurality of the columns 11 and the limiting rollers 12 are arranged along the circumference of the turntable 2.

[0035] With such a design, the limiting roller 12 can keep the surface of the turntable 2 always in a vertical state.

[0036] According to one embodiment of the present invention, the turntable 2 is provided with a step layer 22 , the circumferential surface of the limiting roller 12 is arranged in contact with the step layer 22 , and the limiting roller 12 is not arranged to protrude from the disk surface of the turntable 2 .

[0037] With such a design, the roller 12 is located in the step layer 22, which prevents the roller 12 from protruding from the surface of the turntable 2, thereby affecting the normal operation of the product and the assembly of the rotating mold.

[0038] According to one embodiment of the present invention, the mounting plate 1 is rotatably provided with a support roller 13, the axis centerline direction of the rotation axis of the support roller 13 is parallel to the axis centerline direction of the rotation axis of the turntable 2, the support roller 13 is arranged below the turntable 2, and the circumferential surface of the support roller 13 is arranged in contact with the side wall of the step layer 22.

[0039] With such a design, the supporting roller 13 can play a load-bearing role, reduce the gravity on the rotating shaft of the turntable 2, and extend the service life of the rotating shaft of the turntable 2.

[0040] According to one embodiment of the present invention, a limiting component for limiting the turntable 2 at the injection molding position is provided between the turntable 2 and the mounting plate 1 .

[0041] Through such a design, the stability of rotary mold injection molding is improved.

[0042] According to one embodiment of the present invention, the limiting assembly includes a limiting boss 14 slidably connected to the mounting plate 1, a cylinder 15 driving the limiting boss 14 to slide, and a limiting groove 23 arranged on the side wall of the turntable 2, the limiting boss 14 and the limiting groove 23 are limited and cooperated, and two limiting grooves 23 are symmetrically arranged.

[0043] With such a design, when the turntable 2 rotates to the injection position, the cylinder 15 pushes the limiting boss 14 to extend into the limiting groove 23, fixing the position of the turntable 2 and preventing the turntable 2 from rotating during the injection process.

[0044] According to one embodiment of the present invention, the rotating water-passing column 4 is connected to the water-dividing row 24 via a water pipe, and the rotating disk 2 is provided with a water source pipe groove 25 for accommodating the water pipe.

[0045] This design prevents the water pipe from protruding out of the surface of the turntable 2 .

[0046] According to one embodiment of the present invention, the water source pipe groove 25 is provided with a bend 251 for avoiding the installation hole and the positioning hole.

[0047] Such a design does not affect the connection between the rotating mold and the turntable 2 through the mounting holes and the positioning holes.

[0048] According to one embodiment of the present invention, the fixed water-passing column 3 is provided with a cavity, and the rotating water-passing column 4 includes a connecting column 41 and a connecting disk 42, the connecting column 41 is rotatably arranged in the cavity, the connecting column 41 is rotatably connected to the fixed water-passing column 3 through a bearing 33, and the connecting disk 42 is arranged outside the cavity and fixedly connected to the turntable 2.

[0049] Through such a design, the purpose of rotatably connecting the rotating water-passing column 4 with the fixed water-passing column 3 is achieved.

[0050] 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.

[0051] Through such a design, the purpose of cooling water closed loop is achieved.

[0052] According to one embodiment of the present invention, the cavity includes a first water chamber 34 and a second water chamber 35 which are spaced apart along its axial direction, the first water chamber 34 is provided with a first water inlet 341 which is communicated with the first channel 31, and the second water chamber 35 is provided with a second water return port 351 which is communicated with the second channel 32.

[0053] Through such a design, cooling water can flow into the first water chamber 34 or the second water chamber 35 .

[0054] 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 port 422, the third water inlet 411 and the fifth water outlet 421 are respectively arranged at both ends of the third channel 43, and the third water inlet 411 is communicated with the first water chamber 34; the fourth water outlet 412 and the sixth water return port 422 are respectively arranged at both ends of the fourth channel 44, and the fourth water outlet 412 is communicated with the second water chamber 35.

[0055] Through such a design, external cooling water flows from the cooling water inlet channel 16 into the first channel 31 and enters the first water cavity 34 from the first water inlet 341. The first water cavity 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, flow out from the fifth water outlet 421, flow to the water distribution drain 24 through the water pipe, and finally supply cooling water to the mold. Backflow of cooling water: The cooling water of the mold flows to the sixth water return port 422 through the water distribution drain 24, flows out from the fifth water outlet 421 through the fourth channel 44 into the second water cavity 35, and then flows into the second channel 32 from the second water return port 351 and is discharged from the cooling water return channel 17.

[0056] According to one embodiment of the present invention, the mounting plate 1 is provided with a first air channel 18, and the fixed water column 3 is provided with a second air channel 36 communicating with the first air channel 18; the cavity includes an air cavity 37, and the air cavity 37 is spaced apart from the first water cavity 34 and the second water cavity 35 along the axial direction of the fixed water column 3, and the air cavity 37 is provided with a first air outlet 371 communicating with the second air channel 36.

[0057] Through such a design, the normal input of the pneumatic power source is guaranteed.

[0058] According to one embodiment of the present invention, 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, 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 arranged at both ends of the third air duct 45, and the second air inlet 413 is communicated with the air cavity 37.

[0059] According to one embodiment of the present invention, an air distribution row 26 communicating with the third air outlet 423 is provided on the turntable 2, and the third air outlet 423 and the air distribution row 26 are communicated through an air pipe, and the turntable 2 is provided with an air source pipe groove 27 for accommodating the air pipe.

[0060] According to one embodiment of the present invention, a water seal cavity 38 is disposed between any two of the air cavity 37 , the first water cavity 34 , and the second water cavity 35 .

[0061] Through such a design, the air cavity 37 , the first water cavity 34 , and the second water cavity 35 are isolated from each other, thereby improving the sealing properties of the air cavity 37 , the first water cavity 34 , and the second water cavity 35 .

[0062] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An injection molding machine injection mold rotating assembly, characterized in that: The invention comprises a mounting plate (1), a turntable (2) rotatably connected to the mounting plate (1), and a driving assembly for driving the turntable (2) to perform 180-degree reversal, wherein the turntable (2) is used to mount a rotating mold; a cooling assembly for supplying cooling liquid to the rotating mold is arranged between the mounting plate (1) and the turntable (2); the cooling assembly comprises 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 and rotatably connected to the fixed water column (3); the fixed water column (3) is provided with a fixed channel communicating with the water channel of the mounting plate (1); the rotating water column (4) is provided with a rotating channel communicating with a water distribution row (24) of the turntable (2); and the rotating channel is arranged in communication with the fixed channel.

2. The injection molding machine injection mold rotating assembly according to claim 1, characterized in that: The driving assembly comprises 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); and a transmission tooth (21) meshing with the gear (51) is provided on the outer periphery of the rotating disk (2).

3. The injection molding machine injection mold rotating assembly according to claim 1, characterized in that: The mounting plate (1) is provided with an anti-deflection component for limiting the rotation disk (2) on the mounting plate (1).

4. The injection molding machine injection mold rotating assembly according to claim 3, characterized in that: The anti-deviation assembly comprises a column (11) fixedly connected to the mounting plate (1) and a limiting roller (12) rotatably connected to the column (11), wherein the axis centerline direction of the rotation axis of the limiting roller (12) is perpendicular to the axis centerline direction of the rotation axis of the turntable (2); a plurality of the columns (11) and the limiting roller (12) are arranged along the circumference of the turntable (2).

5. The injection molding machine injection mold rotating assembly according to claim 4, characterized in that: The rotating disk (2) is provided with a step layer (22), the circumferential surface of the limiting roller (12) is arranged in contact with the step layer (22), and the limiting roller (12) is arranged not to protrude from the disk surface of the rotating disk (2).

6. The injection molding machine injection mold rotating assembly according to claim 5, characterized in that: The mounting plate (1) is rotatably provided with a support roller (13), the axis centerline direction of the rotation axis of the support roller (13) is parallel to the axis centerline direction of the rotation axis of the turntable (2), the support roller (13) is arranged below the turntable (2), and the circumferential surface of the support roller (13) is arranged in contact with the side wall of the step layer (22).

7. The injection molding machine injection mold rotating assembly according to claim 1, characterized in that: A limiting component for limiting the position of the rotating disk (2) at the injection molding position is provided between the rotating disk (2) and the mounting plate (1).

8. The injection molding machine injection mold rotating assembly according to claim 7, characterized in that: The limiting assembly comprises a limiting boss (14) slidably connected to the mounting plate (1), a cylinder (15) driving the limiting boss (14) to slide, and a limiting groove (23) arranged on the side wall of the turntable (2), the limiting boss (14) and the limiting groove (23) being limitedly matched, and two limiting grooves (23) are symmetrically arranged.

9. The injection molding machine injection mold rotating assembly according to claim 1, characterized in that: The rotating water-passing column (4) is connected to the water-dividing row (24) via a water pipe, and the rotating disk (2) is provided with a water source pipe groove (25) for accommodating the water pipe.

10. The injection molding machine injection mold rotating assembly according to claim 9, characterized in that: The water source pipe groove (25) is provided with a bend (251) for avoiding the installation hole and the positioning hole.

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