CN221249682U - Accurate mosaic injection mold of stator - Google Patents

Abstract

The utility model discloses a precise embedded injection mold for a stator, which comprises an upper mold, a first lower mold, a second lower mold and a rotating base, wherein the first lower mold and the second lower mold are arranged at two sides of the upper end of the rotating base, the upper mold is positioned right above one group of the first lower mold and the second lower mold, the bottom of the upper mold is connected with a compressed air switching electromagnetic valve, the upper mold is connected with an upper mold injection cooling pipeline, and the first lower mold injection cooling pipeline is connected with the first lower mold. According to the precise embedded injection mold for the stator, disclosed by the utility model, the matching precision is 0.01mm, the metal stator is placed in a mold fixing position, special engineering plastic injection is performed after mold closing, cooling molding is performed, the mold is opened in a petal-type opening mode after molding, the product is conveniently taken out, two groups of lower molds capable of being switched are arranged, the injection molding can be alternately repeated, and the injection molding productivity is 200% higher than that of a traditional production mode.

Description

Accurate mosaic injection mold of stator

Technical Field

The utility model relates to the field of injection molds, in particular to a precise embedded injection mold for a stator.

Background

The utility model provides a carry out motor stator injection moulding's supporting facilities, this mould is arranged in new energy automobile cooling system water pump around copper line motor stator usefulness of moulding plastics, and electronic stator comprises triplex, including last injection molding, middle metal stator and lower injection molding, go up the upper surface of injection molding in the metal stator outer loop, lower injection molding inlays in the lower surface inner loop of metal stator, along with the continuous development of science and technology, people are also higher and higher to injection molding's manufacturing process requirement.

The existing injection mold has certain defects when in use, firstly, when in use, the injection molding processing efficiency is poor, only one group of injection molding processing efficiency can be processed at one time, the mold processing can stop running when in blanking, a certain time waste can be caused, the work efficiency of inconvenient operation users is poor, and when in use, the heat dissipation operation cannot be conveniently and rapidly carried out, and certain adverse effects are brought to the actual use process.

Disclosure of utility model

The technical problems to be solved are as follows: aiming at the defects of the prior art, the utility model provides a precise mosaic injection mold for a stator, the matching precision is 0.01mm, a metal stator is placed in a mold to be precisely positioned and fixed, special engineering plastic injection is carried out after mold closing, then cooling molding is carried out, after molding, the mold is opened in a petal-type opening mode, the product is conveniently taken out, two groups of lower molds capable of being switched are arranged, the injection molding can be alternately repeated, the injection molding productivity is 200% higher than that of the traditional production mode, and the problems in the background technology can be effectively solved.

The technical scheme is as follows: in order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a accurate mosaic injection mold of stator, includes last mould, first bed die, second bed die and rotating base, first bed die and second bed die set up in rotating base's upper end both sides position, go up the position directly over the mould is located a set of in first bed die and the second bed die, and the compressed air switching solenoid valve is connected to the bottom of going up the mould, be connected with the mould cooling line that moulds plastics on the mould, be connected with first bed die cooling line that moulds plastics on the first bed die, be connected with second bed die cooling line that moulds plastics on the second bed die, all be provided with the product injection molding die cavity in second bed die and the first bed die, the lateral wall of injection molding die cavity is provided with petal structure, the inside of injection molding die cavity is provided with finished product ejection mechanism.

Preferably, the top of the upper die is integrally positioned with an upper die top plate, a lifting mechanism and a mounting flange are mounted at the position where the upper die top plate is connected with the compressed air switching electromagnetic valve, a first lower die support is positioned between the bottom of the first lower die and the rotating base, a second lower die support is positioned between the bottom of the second lower die and the rotating base, and a guide groove and a guide column are arranged between the upper die and the first lower die.

Preferably, the upper die top plate is arranged at the bottom of the compressed air switching electromagnetic valve through the hoisting mechanism and the mounting flange, and is driven to move up and down through the compressed air switching electromagnetic valve, and the upper die is pressed and moved at the position right above the first lower die and is guided by the guide groove and the guide column.

Preferably, the position that the rotating base outside is located the second bed die outside is provided with the heat dissipation support, the bottom of heat dissipation support is located the fixed bolster, the front end location on the heat dissipation support has the heat dissipation bellows, the inside activity of heat dissipation bellows is provided with the radiator fan, the radiator bellows is connected with the fan driver.

Preferably, the bottom of the heat dissipation support is fixed through a fixed support, and the fan driver drives the heat dissipation fan to rotate at a high speed in the heat dissipation bellows.

Preferably, the bottom of the rotating base rotates through the rotary driving mechanism, the positions of the first lower die and the second lower die are driven by the rotating base to be mutually switched, and the upper die, the first lower die and the second lower die are subjected to press fit injection molding.

The beneficial effects are that: compared with the prior art, the utility model provides a precise embedded injection mold for a stator, which has the following beneficial effects: this accurate mosaic injection mold of stator, cooperation precision 0.01mm, put into mould fixed position with metal stator, after the compound die, carry out special engineering plastics injection, then cooling shaping, after the shaping, the mould is opened by petal formula opening mode, make things convenient for the product to take out, set up two sets of lower moulds that can switch, can alternate repetition injection molding, injection molding productivity surpasses traditional production mode 200%, the mould divide into three parts, mould and two lower moulds on one, go up the mould and only do the up-and-down motion, two lower moulds are only rotated and are used alternately, still contain cooling system in the mould.

When the novel injection molding machine is used, the first lower die and the second lower die are positioned on the rotating base, the motor stator assembly is placed into the internal positioning of the injection molding cavity, the lower die is rotated to the position right below the upper die after being placed, the upper die moves downwards and is embedded and pressed with the lower die, liquid resin is injected into the upper die through the upper die injection molding cooling pipeline and the first lower die injection molding cooling pipeline, the upper die moves upwards after being molded, the position of the lower die is rotated to the discharging position through the rotating base, a molded part is taken out after heat dissipation through the heat dissipation support, the other group of lower dies are rotated to the injection molding station position to continue injection molding when the part is taken out, the uninterrupted injection molding effect can be achieved, the whole injection molding machine is simple in structure and convenient to operate, and the using effect is better than that of the traditional mode.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a precise inlay type injection mold for a stator according to the present utility model.

Fig. 2 is a schematic structural diagram of the other side of the whole stator precision inlay type injection mold.

Fig. 3 is a schematic structural diagram of a top view of a precision inlay injection mold for a stator according to the present utility model.

Fig. 4 is a schematic structural diagram of an enlarged view of a position a in a precision inlay type injection mold for a stator according to the present utility model.

Fig. 5 is a schematic structural diagram of a heat dissipation support in a precise inlay type injection mold for a stator according to the present utility model.

In the figure: 1. a rotating base; 2. a first lower mold injection cooling line; 3. a first lower die support; 4. a first lower die; 5. a guide groove; 6. an upper die; 7. an upper die injection molding cooling pipeline; 8. an upper die top plate; 9. a hoisting mechanism; 10. a mounting flange; 11. a second lower die injection cooling pipeline; 12. an injection molding groove; 13. a guide post; 14. a heat dissipation support; 15. a second lower die support; 16. a second lower die; 17. a petal-type structure; 18. a finished product ejection mechanism; 19. a heat dissipation bellows; 20. a heat radiation fan; 21. a fixed support; 22. a fan driver.

Detailed Description

The technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings and detailed description, but it will be understood by those skilled in the art that the examples described below are some, but not all, examples of the present utility model, and are intended to be illustrative of the present utility model only and should not be construed as limiting the scope of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-5, a precise embedded injection mold for a stator comprises an upper mold 6, a first lower mold 4, a second lower mold 16 and a rotating base 1, wherein the first lower mold 4 and the second lower mold 16 are arranged at two sides of the upper end of the rotating base 1, the upper mold 6 is positioned right above one group of the first lower mold 4 and the second lower mold 16, a compressed air switching electromagnetic valve is connected to the bottom of the upper mold 6, an upper mold injection cooling pipeline 7 is connected to the upper mold 6, a first lower mold injection cooling pipeline 2 is connected to the first lower mold 4, a second lower mold injection cooling pipeline 11 is connected to the second lower mold 16, injection grooves 12 are arranged in the second lower mold 16 and the first lower mold 4, petal type structures 17 are arranged on the side walls of the injection grooves 12, a finished product ejection mechanism 18 is arranged inside the injection grooves 12, the metal stator is placed at a fixed position of the mold, after mold closing, engineering plastic injection is carried out, then cooling molding is carried out, after molding, the mold is opened in a petal type opening mode, a product is conveniently taken out, two groups of exchangeable, and a special type of production mode can be realized, and the conventional injection mold can be alternately produced by using the two groups of injection molding modes, and the injection mold can be alternately changed to 200%.

Further, an upper die top plate 8 is integrally positioned at the top of the upper die 6, a hoisting mechanism 9 and a mounting flange 10 are mounted at the position where the upper die top plate 8 is connected with the compressed air switching electromagnetic valve, a first lower die support 3 is positioned between the bottom of the first lower die 4 and the rotating base 1, a second lower die support 15 is positioned between the bottom of the second lower die 16 and the rotating base 1, and a guide groove 5 and a guide column 13 are arranged between the upper die 6 and the first lower die 4.

Further, the upper die top plate 8 is installed at the bottom of the compressed air switching electromagnetic valve through the hoisting mechanism 9 and the mounting flange 10, and the upper die top plate 8 is driven to move up and down through the compressed air switching electromagnetic valve, and the upper die 6 is pressed and moved at the position right above the first lower die 4 and is guided by the guide groove 5 and the guide column 13.

Further, a heat dissipation support 14 is arranged at a position, outside the rotary base 1, outside the second lower die 16, a fixed support 21 is positioned at the bottom of the heat dissipation support 14, a heat dissipation bellows 19 is positioned at the front end of the heat dissipation support 14, a heat dissipation fan 20 is movably arranged in the heat dissipation bellows 19, and a fan driver 22 is connected with the heat dissipation bellows 19.

Further, the bottom of the heat dissipation support 14 is fixed by a fixing support 21, and a fan driver 22 drives the heat dissipation fan 20 to rotate at a high speed inside the heat dissipation bellows 19.

Further, the bottom of the rotating base 1 rotates through the rotation driving mechanism, and the rotating base 1 drives the positions of the first lower die 4 and the second lower die 16 to be switched, and the upper die 6, the first lower die 4 and the second lower die 16 are subjected to press-fit injection molding.

Working principle: the utility model comprises a rotating base 1, a first lower die injection cooling pipeline 2, a first lower die support 3, a first lower die 4, a guide groove 5, an upper die 6, an upper die injection cooling pipeline 7, an upper die top plate 8, a hoisting mechanism 9, a mounting flange 10, a second lower die injection cooling pipeline 11, an injection groove 12, a guide post 13, a heat dissipation support 14, a second lower die support 15, a second lower die 16, a petal structure 17, a finished product ejection mechanism 18, a heat dissipation bellows 19, a heat dissipation fan 20, a fixed support 21 and a fan driver 22, wherein the matching precision is 0.01mm, a metal stator is placed in a die fixing position, special engineering plastics are injected after the die is closed, then the die is cooled and formed, after the die is formed, the die is opened in a petal type opening mode, the product is conveniently taken out, two groups of lower dies capable of being switched are arranged, the injection forming can be alternately repeated, and the injection forming productivity exceeds the traditional production mode by 200%.

The mold is specially used for the injection molding of the precise stator of the cooling water pump motor of the three-electric system of the new energy automobile. The motor winding stator consists of three parts: 1. the upper precision injection molding structural part; 2. injection molding and encapsulation are carried out on the winding position of the middle stator; 3. and (3) lower precision injection molding structural parts.

The metal stator is inlaid in the integral encapsulation of the upper injection molding structural member, the injection molding structural member is matched with the metal iron core for precision molding, and the traditional water pump all-metal stator structure is replaced.

In order to match the long-term durability and high temperature resistance requirements of the motor stator, a special engineering resin special for the winding stator is developed and customized, and the design of a precise injection mold is matched, so that the push-pull strength of the main body of the stator structure exceeds 800Nm and exceeds 350Nm standard required by customers. Meanwhile, the winding stator can stably work in a severe environment at 150 ℃.

The method has the advantages that the design and matching precision of the injection mold and the metal stator is 0.01mm, an online preheating process of the metal stator is developed, the design precision requirement of the mold is matched, and the extreme standard that the batch front of the embedding process of the injection mold is smaller than 0.02mm is solved.

Injection molding scheme: stator punching shaping, rust-proof treatment, baking and preheating, resin dehumidifying and drying (the water content is controlled to be less than 0.02%), insert molding, measuring and checking, packaging and delivering.

The mould is divided into three parts, namely an upper mould and two lower moulds, wherein the upper mould only moves up and down, the two lower moulds only rotate and are used alternately, and the mould also comprises a cooling system.

When the novel injection molding machine is used, the first lower die 4 and the second lower die 16 are positioned on the rotating base 1, the motor stator assembly is placed into the injection molding groove 12 for internal positioning, the lower die is rotated to a position right below the upper die 6 after the motor stator assembly is placed into the motor stator assembly, the upper die 6 moves downwards to be embedded and pressed with the lower die, injection molding liquid is injected into the inner part through the upper die injection cooling pipeline 7 and the first lower die injection cooling pipeline 2, cooling molding is waited, the upper die 6 moves upwards after molding, the position of the rotating base 1 rotates the lower die to a discharging position, a molded part is taken out after heat dissipation through the heat dissipation support 14, and the other group of lower dies are rotated to the injection molding station position to continue injection molding when the part is taken out, so that the uninterrupted injection molding effect can be achieved.

It should be noted that in this document, relational terms such as first and second (first and second), and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (6)

1. The utility model provides a accurate mosaic injection mold of stator, includes mould (6), first bed die (4), second bed die (16) and rotating base (1), its characterized in that: the novel plastic injection molding machine is characterized in that the first lower die (4) and the second lower die (16) are arranged at two sides of the upper end of the rotating base (1), the upper die (6) is located at a position right above one group of the first lower die (4) and the second lower die (16), the bottom of the upper die (6) is connected with a compressed air switching electromagnetic valve, the upper die (6) is connected with an upper die injection molding cooling pipeline (7), the first lower die (4) is connected with a first lower die injection molding cooling pipeline (2), the second lower die (16) is connected with a second lower die injection molding cooling pipeline (11), injection molding grooves (12) are formed in the second lower die (16) and the first lower die (4), petal structures (17) are arranged on the side walls of the injection molding grooves (12), and finished product ejection mechanisms (18) are arranged inside the injection molding grooves (12).

2. The precise mosaic injection mold of claim 1, wherein: the top of last mould (6) is integrative to be located has last mould roof (8), hoist and mount mechanism (9) and mounting flange (10) are installed to the position that goes up mould roof (8) and compressed air switch solenoid valve, be located first lower mould support (3) between the bottom of first lower mould (4) and rotating base (1), be located second lower mould support (15) between the bottom of second lower mould (16) and rotating base (1), be provided with guide way (5) and guide post (13) between last mould (6) and first lower mould (4).

3. The precise mosaic injection mold of claim 2, wherein: the upper die top plate (8) is arranged at the bottom of the compressed air switching electromagnetic valve through the hoisting mechanism (9) and the mounting flange (10), the upper die top plate (8) is driven to move up and down through the compressed air switching electromagnetic valve, and the upper die (6) is pressed and moved at the position right above the first lower die (4) and is guided by the guide groove (5) and the guide column (13).

4. The precise mosaic injection mold of claim 1, wherein: the rotary base is characterized in that a heat dissipation support (14) is arranged at the outer side of the rotary base (1) and positioned at the outer side of the second lower die (16), a fixed support (21) is positioned at the bottom of the heat dissipation support (14), a heat dissipation bellows (19) is positioned at the front end of the heat dissipation support (14), a heat dissipation fan (20) is movably arranged in the heat dissipation bellows (19), and a fan driver (22) is connected with the heat dissipation bellows (19).

5. The precise mosaic injection mold of claim 4, wherein: the bottom of the heat radiation support (14) is fixed through a fixed support (21), and the fan driver (22) drives the heat radiation fan (20) to rotate at a high speed in the heat radiation bellows (19).

6. The precise mosaic injection mold of claim 1, wherein: the bottom of the rotating base (1) rotates through a rotating driving mechanism, the rotating base (1) drives the positions of the first lower die (4) and the second lower die (16) to be mutually switched, and the upper die (6) and the first lower die (4) and the second lower die (16) are subjected to press fit injection molding.