Non-cutting stator new opening forming die

Abstract

The invention relates to a non-cutting stator new opening forming die, which comprises an upper die part and a lower die part, and is characterized in that the upper die part comprises an upper die fixing plate, an upper ejector pin plate arranged on the upper die fixing plate, an upper die plate arranged on the upper die fixing plate and an upper die core arranged on the upper die plate; the lower mold part comprises a lower mold fixing plate, a lower ejector plate arranged on the lower mold fixing plate, a lower mold plate arranged on the lower mold fixing plate and a lower mold core arranged on the lower mold plate, a driving assembly is arranged on the upper mold core, a placing cavity for placing a stator iron core is formed in the lower mold core, and a plurality of sliding blocks are arranged in the placing cavity in an array mode in the circumferential direction; a fixing block is arranged between every two adjacent sliding blocks, a supporting assembly is arranged on the lower ejector plate, the sliding blocks are used for fixing or loosening the stator iron core in the folding or unfolding process along the fixing blocks under the driving of the driving assembly, and the supporting assembly is used for supporting the stator iron core, so that a formed stator is conveniently taken out.

Description

Technical Field

[0001] This invention relates to the field of injection mold technology, and more specifically to a new mold for stator forming without cutting. Background Technology

[0002] Injection-molded stator assemblies typically consist of plastic parts and a stator. The plastic parts are tightly bonded to the stator through injection molding, resulting in a stator assembly with higher precision and stability. Chinese patent CN111483112A discloses an injection mold for an axial motor stator core, including an upper mold and a lower mold. A positioning boss is provided on the end face of the upper mold near the lower mold, with a clearance matching the hollow circular hole of the axial motor stator core. The upper mold also has fastening holes for connecting the axial motor stator core. The lower mold has an annular platform with a placement groove for holding the axial motor stator core. An insert portion matching the tooth clearance of the axial motor stator core is provided within the placement groove. An injection flow channel is provided between the end face of the positioning boss and the bottom surface of the placement groove, communicating with the insert portion. The upper mold also has a feed port. The injection mold of this invention improves the insulation reliability and dimensional accuracy of the insulation layer of the stator core, simplifies the molding process of the insulation layer, and strengthens the insulation layer.

[0003] However, the inventors have discovered that in the actual injection molding process, the stator core needs to be heated to a certain temperature before being placed into the molding cavity for injection molding to prevent the molten material from solidifying after contacting the core. Since the molding cavity is a fixed structure, the stator core may get stuck or be difficult to place in the injection cavity after thermal expansion and contraction, which is time-consuming, labor-intensive, and slow in injection molding efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a non-cutting stator forming mold. By using a slider, the stator core is directly placed into the mold for preheating, which accelerates the forming efficiency. A drive assembly causes several sliders to close or open, fixing or loosening the stator core for easy removal of the formed stator.

[0005] The technical solution of the present invention is as follows:

[0006] A non-cutting stator new forming mold includes an upper mold part and a lower mold part. The upper mold part includes an upper mold fixing plate, an upper ejector plate disposed on the upper mold fixing plate, an upper template disposed on the upper mold fixing plate, and an upper mold core disposed on the upper template. The lower mold part includes a lower mold fixing plate, a lower ejector plate disposed on the lower mold fixing plate, a lower template disposed on the lower mold fixing plate, and a lower mold core disposed on the lower template. A driving assembly is provided on the upper mold core. A placement cavity for placing the stator core is opened on the lower mold core. A plurality of sliders are arranged in an array along the circumferential direction in the placement cavity. A fixing block is disposed between adjacent sliders. A support assembly is provided on the lower ejector plate. The sliders are used to fix or loosen the stator core during the process of closing or opening along the fixing block under the drive of the driving assembly. The support assembly is used to support the stator core.

[0007] As a preferred embodiment, the drive component is configured as a turntable.

[0008] As a preferred embodiment, the drive component is configured as a slide bar.

[0009] As a preferred embodiment, the turntable has several guide grooves, a guide rod slidably disposed in the guide grooves, a gear tooth fixedly disposed on the turntable, a shovel base fixedly disposed on the upper mold core, a sliding block slidably disposed on the lower mold core, and a rack fixedly disposed on the sliding block. The guide rod is fixedly connected to the slider, the rack meshes with a gear, and a receiving cavity is provided on the lower mold core. The turntable cooperates with the receiving cavity.

[0010] As a preferred embodiment, the slide bar is provided with an inclined surface, several grooves formed on the lower mold core, a movable block slidably disposed in the grooves, and an inclined groove formed on the movable block. The inclined surface and the inclined grooves cooperate with each other. The slide bar is fixedly disposed on the upper mold core, and the movable block is fixedly connected to the slider.

[0011] As a preferred embodiment, the support assembly includes a support groove formed on the slider and a support rod slidably disposed within the support groove, the support rod being fixedly disposed on the lower mold ejector plate.

[0012] As a preferred embodiment, the sliding range of the slider is set between 0.6mm and 0.8mm, and the length of the support groove is set between 1.2mm and 1.5mm.

[0013] As a preferred embodiment, a heating rod is provided inside the lower mold core.

[0014] The beneficial effects of this invention are as follows:

[0015] This invention features sliders that allow the stator core to be fixed or released by sliding several sliders. This facilitates the direct placement of the stator core into the mold for heating, solving the problem of difficulty in removing the stator core from the mold due to thermal expansion and contraction after heating, and greatly improving injection molding efficiency.

[0016] In summary, this invention has the advantages of good injection molding effect and high efficiency, and is suitable for the field of injection mold technology. Attached Figure Description

[0017] The invention will be further described below with reference to the accompanying drawings:

[0018] Figure 1 A schematic diagram of a non-cutting stator new forming mold;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the upper mold core;

[0020] Figure 3 This is a schematic diagram of the cavity structure;

[0021] Figure 4 This is a schematic diagram of the slider's structure;

[0022] Figure 5 This is a schematic diagram of the shovel base structure;

[0023] Figure 6 This is a schematic diagram of the chute structure;

[0024] Figure 7 This is a schematic diagram of the slide bar structure;

[0025] Figure 8 This is a schematic diagram showing the state of the slider as the turntable rotates and unfolds.

[0026] Figure 9 This is a schematic diagram showing the state of the slider when the sliding rod drives the block to unfold.

[0027] Reference numerals: 1 Upper mold fixing plate, 2 Upper ejector plate, 3 Upper template, 4 Upper mold core, 5 Lower mold fixing plate, 6 Lower ejector plate, 7 Lower template, 8 Lower mold core, 10 Placement cavity, 11 Slider, 12 Fixing block, 13 Support assembly, 131 Support groove, 132 Support rod, 14 Turntable, 141 Guide groove, 142 Guide rod, 143 Gear tooth, 144 Shovel base, 145 Sliding block, 146 Rack, 147 Receiving cavity, 15 Sliding rod, 151 Inclined surface, 152 Sliding groove, 153 Moving block, 154 Inclined groove. Detailed Implementation

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0029] Example 1

[0030] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0031] like Figure 1 and Figure 9 As shown, a non-cutting stator new forming mold includes an upper mold part and a lower mold part. The upper mold part includes an upper mold fixing plate 1, an upper ejector plate 2 set on the upper mold fixing plate 1, an upper template 3 set on the upper mold fixing plate 1, and an upper mold core 4 set on the upper template 3. The lower mold part includes a lower mold fixing plate 5, a lower ejector plate 6 set on the lower mold fixing plate 5, a lower template 7 set on the lower mold fixing plate 5, and a lower mold core 8 set on the lower template 7. A driving assembly is provided on the upper mold core 4, and a placement cavity 10 for placing the stator core is opened on the lower mold core 8. A plurality of sliders 11 are arranged in an array along the circumferential direction in the placement cavity 10. A fixing block 12 is provided between adjacent sliders 11. A support assembly 13 is provided on the lower ejector plate 6. The sliders 11 are used to fix or loosen the stator core during the process of closing or opening along the fixing block 12 under the drive of the driving assembly. The support assembly 13 is used to support the stator core.

[0032] It is worth mentioning that, such as Figure 8 As shown, the driving component is set to turntable 14.

[0033] It needs to be emphasized that, such as Figure 7 As shown, the drive component is set as slider 15.

[0034] It should be further explained that, such as Figure 8As shown, the turntable 14 has several guide grooves 141, guide rods 142 slidably disposed within the guide grooves 141, gear teeth 143 fixedly disposed on the turntable 14, a shovel base 144 fixedly disposed on the upper mold core 4, a sliding block 145 slidably disposed on the lower mold core 8, and a rack 146 fixedly disposed on the sliding block 145. The guide rods 142 are fixedly connected to the slider 11, and the rack 146 meshes with the gear teeth 143. The lower mold core 8 has a receiving cavity 147, and the turntable 14 cooperates with the receiving cavity 147. When the shovel base 144 extends into the sliding block 145, it can drive the sliding block 145 to slide. This technology is a mature existing technology and will not be described in detail here. In use... The stator core is placed into the placement cavity 10. As the upper mold core 4 and lower mold core 8 close, the shovel base 144 descends. The shovel base 144 pushes the sliding block 145 and the rack 146 to slide. The rack 146 drives the gear teeth 143 to rotate. The gear teeth 143 drive the turntable 14 to rotate, causing the guide rod 142 to slide in the guide groove 141, so that the slider 11 closes to fix the stator core. When the stator core is heated to the set temperature, injection molding can be performed, which solves the problem of traditional stator cores being difficult to remove. After injection molding is completed, the upper mold core 4 rises, causing the shovel base 144 to rise, so that the sliding block 145 and the rack 146 slide in opposite directions, causing the slider 11 to reset, thus removing the fixation of the stator core and making it easy to remove.

[0035] It is worth mentioning that, such as Figure 9 As shown, the slide rod 15 is provided with an inclined surface 151, several grooves 152 opened on the lower mold core 8, a movable block 153 slidably disposed in the grooves 152, and an inclined groove 154 opened on the movable block 153. The inclined surface 151 and the inclined groove 154 cooperate. The slide rod 15 is fixedly disposed on the upper mold core 4. The movable block 153 is fixedly connected to the slider 11. In use, the stator core is placed in the placement cavity 10. When the upper mold core 4 and the lower mold core 8 close, the slide rod 15 is driven to descend. The movable block 153 and the slider 11 are pushed to slide by the inclined surface 151 and the inclined groove 154, so that the slider 11 closes to fix the stator core. When the stator core is heated to the set temperature, injection molding can be performed. After the injection molding is completed, the upper mold core 4 rises, driving the slide rod 15 to rise, so that the slider 11 unfolds to loosen the stator core and remove the product.

[0036] Furthermore, such as Figure 8 As shown, the support assembly 13 includes a support groove 131 formed on the slider 11 and a support rod 132 slidably disposed in the support groove 131. The support rod 132 is fixedly disposed on the lower ejector plate 6. In use, the support rod 132 initially extends out of the support groove 131 to facilitate support of the stator core. After injection molding and the slider 11 unfolds, the lower ejector plate 6 drives the ejector rod and the support rod 132 upward simultaneously to eject the stator.

[0037] In addition, such as Figure 8 and Figure 9 As shown, the movement range of the slider 11 is set between 0.6mm and 0.8mm, and the length of the support groove 131 is set between 1.2mm and 1.5mm. The slider 11 and the support groove 131 are in a state of clearance. When the slider 11 slides, it never contacts the support groove 131 to prevent interference.

[0038] Furthermore, such as Figure 6 As shown, a heating rod is installed inside the lower mold core 8, which is kept constantly heated inside the lower mold core 8 to preheat the stator core and speed up the injection molding efficiency.

[0039] Work process

[0040] When the stator core is placed into the placement cavity 10, the upper mold core 4 and the lower mold core 8 close simultaneously, causing the shovel base 144 to descend. The shovel base 144 pushes the sliding block 145 and the rack 146 to slide. The rack 146 drives the gear teeth 143 to rotate, and the gear teeth 143 drive the turntable 14 to rotate, causing the guide rod 142 to slide in the guide groove 141, so that the slider 11 closes to fix the stator core. Alternatively, the slide rod 15 descends, and the moving block 153 and the slider 11 slide through the inclined surface 151 and the inclined groove 154, so that the slider 11 closes to fix the stator core. When the stator core is heated to the set temperature, injection molding can be performed, which solves the problem of traditional stator cores being difficult to remove and place. At the same time, the support rod 132 supports the stator core during injection molding. After injection molding is completed, the support rod 132 and the ejector rod rise simultaneously to push the product out.

[0041] In the description of this invention, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0042] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0043] The above description, in conjunction with the accompanying drawings, represents only preferred embodiments of the present invention. However, the present invention is not limited to the above embodiments. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention. These modifications and improvements should also be considered within the scope of protection of the present invention and will not affect the effectiveness and practicality of the present invention.

Claims

1. A non-cutting stator new forming mold, comprising an upper mold part and a lower mold part, wherein the upper mold part comprises an upper mold fixing plate (1), an upper ejector plate (2) disposed on the upper mold fixing plate (1), an upper template (3) disposed on the upper mold fixing plate (1), and an upper mold core (4) disposed on the upper template (3); wherein the lower mold part comprises a lower mold fixing plate (5), a lower ejector plate (6) disposed on the lower mold fixing plate (5), a lower template (7) disposed on the lower mold fixing plate (5), and a lower mold core (8) disposed on the lower template (7), characterized in that: The upper mold core (4) is provided with a driving component, and the lower mold core (8) is provided with a placement cavity (10) for placing the stator core. The placement cavity (10) is provided with a plurality of sliders (11) arranged in a circumferential direction. A fixing block (12) is provided between adjacent sliders (11). The lower ejector plate (6) is provided with a support component (13). The sliders (11) are used to fix or loosen the stator core during the process of closing or opening along the fixing block (12) under the drive of the driving component. The support component (13) is used to support the stator core.

2. The non-cutting stator new forming mold according to claim 1, characterized in that: The drive component is configured as a turntable (14).

3. The non-cutting stator new forming mold according to claim 1, characterized in that: The drive component is configured as a slide bar (15).

4. The non-cutting stator new forming mold according to claim 2, characterized in that: The turntable (14) is provided with several guide grooves (141), a guide rod (142) slidably disposed in the guide groove (141), a gear tooth (143) fixedly disposed on the turntable (14), a shovel base (144) fixedly disposed on the upper mold core (4), a sliding block (145) slidably disposed on the lower mold core (8), and a rack (146) fixedly disposed on the sliding block (145). The guide rod (142) is fixedly connected to the slider (11), the rack (146) meshes with the gear tooth (143), and the lower mold core (8) is provided with a receiving cavity (147). The turntable (14) cooperates with the receiving cavity (147).

5. The non-cutting stator new forming mold according to claim 3, characterized in that: The slide bar (15) is provided with an inclined surface (151), several grooves (152) opened on the lower mold core (8), a movable block (153) slidably arranged in the groove (152), and an inclined groove (154) opened on the movable block (153). The inclined surface (151) and the inclined groove (154) cooperate with each other. The slide bar (15) is fixedly arranged on the upper mold core (4). The movable block (153) is fixedly connected to the slider (11).

6. The non-cutting stator new forming mold according to claim 1, characterized in that: The support assembly (13) includes a support groove (131) opened on the slider (11) and a support rod (132) slidably disposed in the support groove (131). The support rod (132) is fixedly disposed on the lower ejector plate (6).

7. The non-cutting stator new forming mold according to claim 6, characterized in that: The sliding range of the slider (11) is set between 0.6mm and 0.8mm, and the length of the support groove (131) is set between 1.2mm and 1.5mm.

8. The non-cutting stator new forming mold according to claim 1, characterized in that: A heating rod is provided inside the lower mold core (8).

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