Magnetic shoe rotor injection mold

Abstract

The utility model relates to the field of motor rotors, and particularly discloses a magnetic shoe rotor injection mold which is characterized by comprising an upper mold plate, a lower mold plate, a cavity sleeve located in the lower mold plate and an inner core located in the cavity sleeve, and a space used for containing a magnet and an iron core is formed between the cavity sleeve and the inner core; a first through hole is formed in the cavity sleeve, a first positioning piece is installed in the lower die plate, the first positioning piece is provided with a first positioning part, and the first positioning part penetrates through the first through hole to be located between every two adjacent magnets so as to limit the magnets to rotate relative to the iron core in the circumferential direction of the iron core. According to the invention, the problem of magnet offset is solved, and the cost can be reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the field of motor rotors, in particular to a magnetic tile rotor injection mold. BACKGROUND

[0002] In the rotor processing process, the magnet needs to be placed around the iron core before injection molding, but since the position of the magnet is not limited, the magnet may deviate during injection molding. The existing solution is to set a raised positioning edge around the iron core to limit the deviation of the magnet along the circumferential direction of the iron core. However, this method increases the use of iron core material and the processing difficulty of the iron core.

[0003] In view of the above problems, the application designs a new magnetic tile rotor injection mold which can reduce costs on the basis of solving the deviation of the magnet. CONTENT OF THE INVENTION

[0004] The application provides a magnetic tile rotor injection mold which reduces costs while ensuring product quality.

[0005] The magnetic tile rotor injection mold provided by the application adopts the following technical scheme:

[0006] A magnetic tile rotor injection mold, characterized in that: comprising an upper mold plate, a lower mold plate, a cavity sleeve located in the lower mold plate, and an inner core located in the cavity sleeve, wherein a space for placing a magnet and an iron core is formed between the cavity sleeve and the inner core; a first through hole is formed on the cavity sleeve, a first positioning member is installed in the lower mold plate, the first positioning member has a first positioning part, and the first positioning part passes through the first through hole and is located between two adjacent magnets to limit the rotation of the magnet relative to the iron core along the circumferential direction of the iron core.

[0007] In a possible implementation, the first positioning member translates radially along the cavity sleeve, a first driving member for driving the first positioning member to translate is arranged in the lower mold plate, the first driving member is in inclined surface transmission cooperation with the first positioning member, and the first driving member moves axially along the cavity sleeve; a first contact surface corresponding to the first driving member is arranged in the upper mold plate; when the upper mold plate is downwardly clamped with the lower mold plate, the first contact surface abuts against the first driving member to make the driving member move axially along the cavity sleeve; a first reset member is further arranged in the lower mold plate, the first reset member is connected with the first driving member and drives the first driving member to reset when the mold is opened.

[0008] In a possible implementation, the first driving member comprises a first driving plate, a containing groove for containing the first reset member is formed on the bottom of the first driving plate, an inclined first sliding groove is formed on the driving plate, and the first positioning member has a first sliding block matched with the first sliding groove.

[0009] In a possible implementation, the cavity sleeve is provided with a second through hole, and the lower die plate is provided with a second positioning member, which has a second positioning portion, and the second positioning portion passes through the second through hole to abut against the outer wall of the magnet to limit the radial movement of the magnet relative to the core.

[0010] In a possible implementation, the second positioning member is radially translated along the cavity sleeve, the lower die plate is provided with a second driving member for driving the second positioning member to translate, the second driving member is in transmission cooperation with the inclined surface of the second positioning member, and the second driving member is axially moved along the cavity sleeve; the upper die plate is provided with a contact member corresponding to the second driving member; when the upper die plate is downwardly combined with the lower die plate, the contact member abuts against the second driving member to drive the driving member to axially move along the cavity sleeve; and the lower die plate is further provided with a second reset member, which is connected with the second driving member and drives the second driving member to reset when the mold is opened.

[0011] In a possible implementation, the second driving member includes a second driving plate, the bottom of the second driving plate is provided with an accommodation groove for accommodating the second reset member, and the second driving plate is provided with a second sliding groove arranged in an inclined manner, and the second positioning member has a second sliding block matched with the second sliding groove.

[0012] In a possible implementation, the contact member includes a contact cylinder, the contact cylinder forms an accommodation cavity, and the accommodation cavity is provided with an elastic member, and the elastic member connects the contact cylinder with the upper die plate. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application;

[0014] Figure 2 is a schematic diagram of the overall structure of the embodiment of the present application; Figure 2 is an enlarged schematic diagram of part A in FIG. 1;

[0015] Figure 3 is a schematic diagram of the core part of the mold;

[0016] Figure 4 is a schematic diagram of the cooperation between the cavity sleeve and the inner core;

[0017] Figure 5 is a connection diagram of the core, the magnet, the injection layer and the inner core;

[0018] Figure 6 is a schematic diagram of the cooperation between the first positioning member, the second positioning member and the magnet;

[0019] Figure 7 is a structural diagram of the first driving member;

[0020] Figure 8 is a structural diagram of the first positioning member;

[0021] Figure 9 is a structure diagram of the second positioning member;

[0022] Figure 10 is a structure diagram of the second driving member;

[0023] Figure 11 is a structure diagram of the final product.

[0024] Fig. 11 is an upper mold plate; 12 is a lower mold plate; 2 is a cavity sleeve; 21 is a first through hole; 22 is a second through hole; 3 is an inner core; 4 is a first positioning member; 41 is a first positioning part; 42 is a first sliding block; 5 is a first driving member; 51 is a first driving plate; 52 is a first sliding groove; 6 is a contact member; 61 is a contact cylinder; 62 is an elastic member; 7 is a first reset member; 8 is a second positioning member; 81 is a second sliding block; 82 is a second positioning part; 9 is a second driving member; 91 is a second driving plate; 92 is a second sliding groove; 101 is a second reset member; 102 is an iron core; 103 is a magnet; 104 is an injection molding layer. DETAILED DESCRIPTION

[0025] The following will be described in detail in combination with the accompanying drawings. Figures 1-11 The application will be described in further detail.

[0026] First, those skilled in the art should understand that the embodiments are only used to explain the technical principles of the application, and are not intended to limit the protection scope of the application. Those skilled in the art can adjust them as needed to adapt to specific application occasions.

[0027] In the description of the embodiments of the application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the application can be understood according to the specific circumstances.

[0028] In the embodiments of the application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0029] The application discloses a magnetic tile rotor injection mold, which comprises an upper mold plate 11, a lower mold plate 12, a cavity sleeve 2 located in the lower mold plate 12, and an inner core 3 located in the cavity sleeve 2, and a space for placing a magnet 103 and an iron core 102 is formed between the cavity sleeve 2 and the inner core 3. The inner core 3 is a multilayer stepped cylindrical structure, and the uppermost part is located in the cavity sleeve 2.

[0030] A first through hole 21 is formed in the cavity sleeve 2, a first positioning piece 4 is arranged in the lower mold plate 12, the first positioning piece 4 is provided with a first positioning part 41, the first positioning part 41 passes through the first through hole 21 and is located between two adjacent magnets so as to limit the rotation of the magnets along the circumferential direction of the iron core relative to the iron core.

[0031] The first positioning piece 4 is radially translated along the cavity sleeve 2, a first driving piece 5 for driving the first positioning piece 4 to translate is arranged in the lower mold plate 12, the first driving piece 5 is in inclined surface transmission cooperation with the first positioning piece 4, and the first driving piece 5 is axially moved along the cavity sleeve 2; a first contact surface 6 corresponding to the first driving piece 5 is arranged in the upper mold plate 11; when the upper mold plate 11 is downwardly combined with the lower mold plate 12, the first contact surface 6 abuts against the first driving piece 5 so that the first driving piece 5 is axially moved along the cavity sleeve 2; and a first reset piece 7 is further arranged in the lower mold plate 12, the first reset piece 7 is connected with the first driving piece 5 and drives the first driving piece 5 to reset when the mold is opened. The first contact surface 6 is the lower surface of the upper mold plate 1.

[0032] The first driving piece 5 comprises a first driving plate 51, a containing groove for containing the first reset piece 7 is formed in the bottom of the first driving plate 51, an obliquely arranged first sliding groove 52 is formed in the driving plate, and the first positioning piece 4 is provided with a first sliding block 42 matched with the first sliding groove 52. The first positioning part 41 is two protrusions of the first positioning piece 4. The first reset piece 7 is a spring, and a bolt is threadedly connected to the first driving plate 51, the bolt is partially inserted into the center of the spring, the part of the bolt inserted into the center of the spring is smooth, and the bolt and the inner ring of the spring are arranged in a spaced mode.

[0033] A second through hole 22 is formed in the cavity sleeve 2, a second positioning piece 8 is arranged in the lower mold plate 12, the second positioning piece 8 is provided with a second positioning part 82, the second positioning part 82 passes through the second through hole 22 and is located to abut against the outer wall of the magnet so as to limit the radial movement of the magnet relative to the iron core. Specifically, the second positioning part 82 is an arc surface and is matched with the outer wall of the magnet.

[0034] The second positioning member 8 is radially translated along the cavity sleeve 2, the second driving member 9 for driving the second positioning member 8 to translate is arranged in the lower die plate 12, the second driving member 9 is in inclined transmission cooperation with the second positioning member 8, and the second driving member 9 is axially moved along the cavity sleeve 2; the contact member 6 corresponding to the second driving member 9 is arranged in the upper die plate 11; when the upper die plate 11 is downwardly closed with the lower die plate 12, the contact member 6 abuts against the second driving member 9 so as to drive the second driving member 9 to axially move along the cavity sleeve 2; the second reset member 101 is further arranged in the lower die plate 12, the second reset member 101 is connected with the second driving member 9 and drives the second driving member 9 to reset when the mold is opened.

[0035] The second driving member 9 comprises a second driving plate 91, the bottom of the second driving plate 91 is provided with a containing groove for containing the second reset member 101, and the second reset member 101 is a spring; the second driving plate 91 is provided with a second sliding groove 92 arranged in an inclination, and the second positioning member 8 is provided with a second sliding block 81 matched with the second sliding groove 92; the inclination of the first sliding groove 52 is relatively larger than that of the second sliding groove 92, so that the translation amount of the first positioning member 4 is larger than that of the second positioning member 8.

[0036] The contact member 10 comprises a contact cylinder 61, the contact cylinder 61 forms a containing cavity, an elastic member 62 is arranged in the containing cavity, and the elastic member 62 connects the contact cylinder 61 with the upper die plate 11.

[0037] Working process: when the upper die plate 11 is pressed downwardly, the lower surface of the upper die plate 11 abuts against the first driving member 5, the first driving member 5 is moved downwardly to drive the first positioning member 4 to translate, synchronously, the contact member 10 abuts against the second driving member 9, and the second driving member 9 drives the second positioning member 8 to translate; when the upper die plate 11 and the die plate abut against each other, the first positioning part 41 of the first positioning member 4 is inserted between the two magnets, and the second positioning part 82 abuts against the outer surface of the magnet. Then, injection molding is performed, and finally, the product shown in the figure is formed, the iron core 102 and the magnet 103 are partially covered by the injection molding layer 104, and the injection molding layer 104 adopts ppt. Figure 10

[0038] In the description of the embodiments of the present application, it should be noted that in the description of the present application, the terms indicating the direction or position relationship are based on the direction or position relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or member must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0039] ​In the description of the application, the description of the terms "one embodiment", "some embodiments", "in this embodiment", "specific example", or "some examples" and the like means that the specific features, mechanisms, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the description, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0040] The above description is merely a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A magnetic shoe rotor injection mold characterized by: The application relates to a mold for manufacturing a magnetic core, which comprises an upper mold plate, a lower mold plate, a cavity sleeve located in the lower mold plate, and an inner core located in the cavity sleeve, wherein a space for placing a magnet and the inner core is formed between the cavity sleeve and the inner core; a first through hole is formed in the cavity sleeve, a first positioning member is arranged in the lower mold plate, the first positioning member has a first positioning part, and the first positioning part passes through the first through hole and is located between two adjacent magnets to limit the rotation of the magnets along the circumferential direction of the inner core.

2. The magnet segment rotor injection mold of claim 1, wherein: The first positioning member is radially translated along the cavity sleeve, a first driving member for driving the first positioning member to translate is arranged in the lower mold plate, the first driving member is in inclined transmission cooperation with the first positioning member, and the first driving member moves along the axial direction of the cavity sleeve; a first contact surface corresponding to the first driving member is arranged in the upper mold plate; when the upper mold plate is downwardly combined with the lower mold plate, the first contact surface abuts against the first driving member to enable the first driving member to move along the axial direction of the cavity sleeve; and a first reset member is further arranged in the lower mold plate, the first reset member is connected with the first driving member and drives the first driving member to reset when the mold is opened.

3. The magnet segment rotor injection mold of claim 2, wherein: The first driving member comprises a first driving plate, a containing groove for containing the first reset member is formed in the bottom of the first driving plate, an obliquely arranged first sliding groove is formed in the driving plate, and the first positioning member has a first sliding block matched with the first sliding groove.

4. The magnet segment rotor injection mold of claim 1, wherein: A second through hole is formed in the cavity sleeve, a second positioning member is arranged in the lower mold plate, the second positioning member has a second positioning part, and the second positioning part passes through the second through hole and is located to abut against the outer wall of the magnet to limit the radial movement of the magnet relative to the inner core.

5. The magnet segment rotor injection mold of claim 4, wherein: The second positioning member is radially translated along the cavity sleeve, a second driving member for driving the second positioning member to translate is arranged in the lower mold plate, the second driving member is in inclined transmission cooperation with the second positioning member, and the second driving member moves along the axial direction of the cavity sleeve; a contact member corresponding to the second driving member is arranged in the upper mold plate; when the upper mold plate is downwardly combined with the lower mold plate, the contact member abuts against the second driving member to enable the second driving member to move along the axial direction of the cavity sleeve; and a second reset member is further arranged in the lower mold plate, the second reset member is connected with the second driving member and drives the second driving member to reset when the mold is opened.

6. The magnet segment rotor injection mold of claim 5, wherein: The second driving member comprises a second driving plate, a containing groove for containing the second reset member is formed in the bottom of the second driving plate, an obliquely arranged second sliding groove is formed in the driving plate, and the second positioning member has a second sliding block matched with the second sliding groove.

7. The magnet segment rotor injection mold of claim 5, wherein: The contact member comprises a contact cylinder, the contact cylinder forms a containing cavity, an elastic member is arranged in the containing cavity, and the elastic member connects the contact cylinder with the upper mold plate.

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