A movable mold core and fixed mold core assembly positioning structure and injection mold

Abstract

The utility model provides a kind of movable mould core and fixed mould core assembly positioning structure and injection mould, it is related to injection mould technical field, solve the technical problem that existing technology exists because movable mould core and fixed mould core positioning precision is poor, wiring needle on stator core and the pinhole on fixed mould core are prone to mispositioning, leading to stator damage.The movable mould core and fixed mould core assembly positioning structure includes sliding insert, is set on one of positioning column and positioning hole hole wall;Sliding groove body is set on the other of positioning column and positioning hole hole wall;Sliding insert is matched with sliding groove body, and sliding insert and sliding groove body have at least two different orientations of sliding fit contact surface.The utility model is used to provide a kind of movable mould core and fixed mould core assembly positioning structure and injection mould for improving movable mould core and fixed mould core positioning precision.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an assembly and positioning structure for a moving mold core and a fixed mold core, and an injection mold. Background Technology

[0002] Currently, such as Figures 1-2 As shown, the planar positioning structure commonly used in the moving and fixed mold cores of BMC injection molds includes positioning pins and positioning holes. The positioning pins are semi-cylindrical structures, and the positioning holes are adapted to the positioning pins. In order to facilitate the quick assembly of the fixed mold cores, the size of the positioning holes is usually larger than the size of the positioning pins.

[0003] However, when assembling the moving mold core and the fixed mold core of BMC injection molds, the moving mold core and the stator core must be assembled first. Then, the worker holds the moving mold core and the stator core downwards and puts them into the fixed mold core. When using the existing planar positioning structure to complete the assembly of the moving mold core and the fixed mold core, the size of the positioning hole may be larger than the size of the positioning post, or there may be wear and tear between the positioning post and the positioning hole due to long-term contact. All of these problems can lead to inaccurate positioning of the moving mold core into the fixed mold core, causing it to wobble. The connecting pins of the stator core cannot fall accurately into the pin insertion holes of the fixed mold core, resulting in problems such as crooked pins, short pins, or no pins, which can easily lead to the quality risk of the stator being scrapped. Utility Model Content

[0004] The purpose of this utility model is to provide an assembly and positioning structure for a moving mold core and a fixed mold core, as well as an injection mold, to solve the technical problem in the prior art where the poor positioning accuracy of the moving and fixed mold cores leads to misalignment of the connecting pins on the stator core and the insertion holes on the fixed mold core, resulting in stator damage. The various technical effects of the preferred technical solutions provided by this utility model are detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The assembly and positioning structure for the moving mold core and the fixed mold core provided by this utility model includes:

[0007] A sliding insert is provided on one of the positioning post and the wall of the positioning hole;

[0008] A sliding groove is provided on the other side of the positioning post and the positioning hole wall;

[0009] The sliding insert mates with the sliding groove, and the sliding insert and the sliding groove have at least two sliding contact surfaces with different orientations.

[0010] Optionally, the sliding insert is a wedge-shaped structure, and the sliding groove is a wedge-shaped groove adapted to the wedge-shaped structure.

[0011] Optionally, both sides of the wedge-shaped structure are inclined planes.

[0012] Optionally, the inclined surfaces on both sides of the wedge structure are symmetrically distributed.

[0013] Optionally, the large opening end of the wedge-shaped groove is positioned opposite the small-sized end of the wedge-shaped structure.

[0014] Optionally, the length of the sliding insert is less than the length of the sliding groove.

[0015] Optionally, the sliding insert is a dovetail protrusion, and the sliding groove is a dovetail groove.

[0016] Optionally, the bottom surface of the sliding groove is a first inclined surface structure, and the end face of the sliding insert that contacts the bottom surface of the sliding groove is a second inclined surface structure. The first inclined surface structure and the second inclined surface structure extend along the radial direction of the fixed mold core or the moving mold core, and the first inclined surface structure and the second inclined surface structure are adapted to each other.

[0017] Optionally, the sliding insert is a cylindrical structure, and the sliding groove is a cylindrical groove adapted to the cylindrical structure.

[0018] An injection mold includes a moving mold core, a fixed mold core, a stator core, and an assembly and positioning structure for the moving and fixed mold cores as described above, wherein the stator core is mounted on the fixed mold core.

[0019] Optionally, the fixed mold core is provided with a pin hole, and the stator core is provided with a connecting pin, the connecting pin being provided in correspondence with the pin hole.

[0020] The beneficial effects of this utility model are as follows: The moving mold core and fixed mold core assembly and positioning structure and injection mold provided by this utility model include a sliding insert and a sliding groove. The sliding insert is disposed on one of the fixed mold core and the moving mold core, and the sliding groove is disposed on the other of the fixed mold core and the moving mold core. The sliding insert and the sliding groove cooperate with each other, and the sliding insert and the sliding groove have at least two sliding contact surfaces with different orientations. The at least two sliding contact surfaces can increase the assembly contact area of ​​the moving mold core and the fixed mold core, thereby effectively reducing wear. When the moving mold core is placed into the fixed mold core, the sliding insert and the sliding groove cooperate to slide, which can ensure that the connecting pins on the stator core are accurately positioned with the pin holes on the fixed mold core, avoiding problems such as misaligned or missing connecting pins that could damage the stator. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the existing fixed mold core structure;

[0023] Figure 2 This is a schematic diagram of the existing moving mold core structure;

[0024] Figure 3 This is a schematic diagram of the fixed mold core structure in Embodiment 1 of this utility model;

[0025] Figure 4 This is a schematic diagram of the moving mold core structure of Embodiment 1 of this utility model;

[0026] Figure 5 This is a schematic diagram of the assembly structure of Embodiment 1 of this utility model;

[0027] Figure 6 This is a schematic diagram of the fixed mold core structure in Embodiment 2 of this utility model;

[0028] Figure 7 This is a schematic diagram of the sliding insert structure in Embodiment 2 of this utility model;

[0029] Figure 8 This is a schematic diagram comparing the present invention with existing positioning structures;

[0030] Figure 9 This is a structural diagram of the moving mold core, motor stator, and fixed mold core of this utility model during assembly.

[0031] In the picture:

[0032] 1. Fixed mold core;

[0033] 2. Moving mold core;

[0034] 3. Positioning post;

[0035] 4. Positioning holes;

[0036] 5. Sliding groove;

[0037] 6. Sliding insert;

[0038] 7. Pin insertion hole;

[0039] 8. Connecting pins;

[0040] 9. Stator core. Detailed Implementation

[0041] Please refer to the attached diagram below. Figures 1-9 This document explains the content of this utility model and its differences from existing technologies. The technical solutions (including preferred solutions) of this utility model are further described in detail below through accompanying drawings and examples of optional embodiments. It should be noted that any technical feature or solution in this embodiment is one or more of a variety of optional technical features or solutions. For the sake of brevity, this document cannot exhaustively list all alternative technical features and solutions of this utility model, nor is it convenient to emphasize that each implementation of a technical feature is one of multiple optional implementations. Therefore, those skilled in the art should understand that any technical means provided by this utility model can be replaced, or any two or more technical means or features provided by this utility model can be combined to obtain a new technical solution. No technical feature or solution in this embodiment limits the scope of protection of this utility model. The scope of protection of this utility model should include any alternative technical solutions that can be conceived by those skilled in the art without creative effort, as well as new technical solutions obtained by combining any two or more technical means or features provided by this utility model.

[0042] In the description of this invention, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] This utility model provides a moving mold core and fixed mold core assembly and positioning structure and injection mold for improving the positioning accuracy of the moving mold core and fixed mold core.

[0045] The following is combined Figures 1-9 The technical solution provided by this utility model will be described in more detail.

[0046] This utility model provides an assembly and positioning structure for a moving mold core 2 and a fixed mold core 1, including:

[0047] The sliding insert 6 is disposed on one of the positioning post 3 and the positioning hole 4 wall;

[0048] The sliding groove 5 is set on the other side of the wall between the positioning post 3 and the positioning hole 4;

[0049] The sliding insert 6 cooperates with the sliding groove 5, and the sliding insert 6 and the sliding groove 5 have at least two sliding contact surfaces with different orientations.

[0050] The assembly and positioning structure for the moving mold core 2 and the fixed mold core 1 provided by this utility model includes a sliding insert 6 and a sliding groove 5. The sliding insert 6 is disposed on one of the walls of the positioning post 3 and the positioning hole 4, and the sliding groove 5 is disposed on the other wall of the positioning post 3 and the positioning hole 4. The sliding insert 6 cooperates with the sliding groove 5, and the sliding insert 6 and the sliding groove 5 have at least two sliding contact surfaces with different orientations. The at least two sliding contact surfaces can increase the assembly contact area of ​​the moving mold core 2 and the fixed mold core 1, thereby effectively reducing wear. When the moving mold core 2 is placed into the fixed mold core 1, the sliding insert 6 and the sliding groove 5 cooperate to slide, which improves the positioning accuracy of the moving mold core 2 and the fixed mold core 1, and can ensure that the connecting pin 8 on the stator core 9 is accurately positioned with the pin hole 7 on the fixed mold core 1, avoiding problems such as misaligned or missing connecting pins 8 that could lead to stator damage.

[0051] Understandably, the existing planar positioning structure only has a sliding fit between the positioning post 3 and the wall of the positioning hole 4, which causes severe wear during mold opening and closing and requires frequent maintenance. By adding the sliding insert 6 and the sliding groove 5, the mold core can be guaranteed to run continuously for more than 5000 cycles before maintenance is required, which greatly reduces the maintenance frequency. The sliding insert 6 and the sliding groove 5 increase the effective contact area of ​​the mold core, reduce material fatigue failure, and improve the positioning accuracy of the moving mold core 2 and the fixed mold core 1.

[0052] In some embodiments of this utility model, the sliding insert 6 is a wedge-shaped structure, and the sliding groove 5 is a wedge-shaped groove adapted to the wedge-shaped structure.

[0053] In some embodiments of the present invention described above, the sliding insert 6 is a wedge-shaped structure, and the sliding groove 5 is a wedge-shaped groove adapted to the wedge-shaped structure. The sliding insert 6 of the wedge-shaped structure cooperates with the wedge-shaped groove, thereby ensuring that the sliding insert 6 can slide along the wedge-shaped groove. Furthermore, since the wedge-shaped structure has an inclined surface, the inclined surface can play a positioning role, thereby enabling radial automatic positioning through the wedge-shaped structure. That is to say, when the sliding insert 6 of the wedge-shaped structure slides along the sliding groove 5 to the end, the inclined surface on the sliding insert 6 is completely in contact with the inclined surface of the sliding groove 5, thereby positioning the sliding insert 6. This effectively ensures that when the sliding insert 6 slides into the sliding groove 5, the moving mold core 2 and the fixed mold core 1 are installed in place, improving the positioning accuracy of the moving mold core 2 and the fixed mold core 1, limiting the radial displacement of the moving mold core 2, and ensuring assembly accuracy.

[0054] Furthermore, the inclined surface on the wedge structure can make the contact pressure distribution more uniform, reduce local wear, improve service life, and reduce maintenance frequency. The sliding insert 6 and sliding groove 5 of the wedge structure have three sliding contact surfaces. These three surfaces increase the assembly contact area between the moving mold core 2 and the fixed mold core 1, effectively reducing wear. When the moving mold core 2 is placed into the fixed mold core 1, the sliding insert 6 and sliding groove 5 slide together, improving the positioning accuracy of the moving mold core 2 and the fixed mold core 1. This ensures that the connecting pin 8 on the stator core 9 is precisely positioned with the pin insertion hole 7 on the fixed mold core 1, and the connecting pin 8 can accurately fall into the pin insertion hole 7. This avoids problems such as misaligned or missing connecting pins, which can damage the stator. It also reduces the laborious and tedious manual shaking and active positioning operations required by employees when manually operating the moving mold core 2, increasing the reliability of quality during production.

[0055] In addition, the sliding insert 6 has a wedge-shaped structure, and the sliding groove 5 is a wedge-shaped groove adapted to the wedge-shaped structure, which facilitates the quick insertion of the sliding insert 6 into the sliding groove 5, reduces wear problems during assembly, and can automatically adjust its position as the sliding insert 6 moves into the sliding groove 5 to achieve precise positioning.

[0056] In some embodiments of this utility model, both sides of the wedge-shaped structure are inclined surfaces.

[0057] In some of the embodiments of this utility model described above, both sides of the wedge structure are inclined surfaces, and both inclined surfaces can play a positioning role. Thus, radial automatic positioning can be achieved through the wedge structure. That is to say, when the sliding insert 6 of the wedge structure slides along the sliding groove 5 to the end, the inclined surfaces on both sides of the sliding insert 6 are completely in contact with the inclined surfaces on both sides of the sliding groove 5, thereby positioning the sliding insert 6. This effectively ensures that when the sliding insert 6 slides into the sliding groove 5, the moving mold core 2 and the fixed mold core 1 are installed in place, improving the positioning accuracy of the moving mold core 2 and the fixed mold core 1, limiting the radial displacement of the moving mold core 2, and ensuring assembly accuracy.

[0058] In some embodiments of this utility model, the inclined surfaces on both sides of the wedge-shaped structure are symmetrically distributed.

[0059] In some of the embodiments of this utility model described above, the inclined surfaces on both sides of the wedge structure are symmetrically distributed, and the structure of the sliding insert 6 can facilitate the assembly of the sliding insert 6 and the sliding groove 5, thereby improving assembly efficiency.

[0060] In some embodiments of this utility model, the large opening end of the wedge-shaped groove is positioned opposite to the small-sized end of the wedge-shaped structure.

[0061] In some of the embodiments of this utility model described above, the small end of the sliding insert 6 and the large opening end of the sliding groove 5 are arranged opposite to each other, and the sliding insert 6 can be inserted into the sliding groove 5 until the sliding insert 6 and the sliding groove 5 are completely fitted together, which can effectively avoid the problem of collision and wear when the positioning post 3 is inserted.

[0062] It is understood that the length of the sliding insert 6 can be the same as the length of the sliding groove 5, that is, when the sliding insert 6 is inserted into the sliding groove 5, the moving mold core 2 and the fixed mold core 1 are just assembled in place.

[0063] Preferably, the length of the sliding insert 6 is less than the length of the sliding groove 5. This is because the sliding insert 6 and the sliding groove 5 work together to achieve precise positioning of the moving mold core 2 and the fixed mold core 1.

[0064] Therefore, the lengths of the sliding insert 6 and the sliding groove 5 can be set to be different, as long as the sliding groove 5 and the sliding insert 6 fit perfectly when the moving mold core 2 is fully inserted into the fixed mold core 1.

[0065] In some embodiments of this utility model, the sliding insert 6 is a dovetail protrusion, and the sliding groove 5 is a dovetail groove.

[0066] In some embodiments of this utility model, the sliding insert 6 is a dovetail protrusion and the sliding groove 5 is a dovetail groove. The dovetail protrusion and the dovetail groove are matched to ensure that there are three sliding contact surfaces between the sliding insert 6 and the sliding groove 5. The sliding contact surfaces can increase the assembly contact area of ​​the moving mold core 2 and the fixed mold core 1, thereby effectively reducing wear. When the moving mold core 2 is placed into the fixed mold core 1, the sliding insert 6 and the sliding groove 5 slide together, which improves the positioning accuracy of the moving mold core 2 and the fixed mold core 1. This ensures that the connecting pin 8 on the stator core 9 is accurately positioned with the pin hole 7 on the fixed mold core 1, avoiding problems such as misaligned or missing connecting pins that could damage the stator.

[0067] In some embodiments of this utility model, the bottom surface of the sliding groove 5 is a first inclined surface structure, and the end face of the sliding insert 6 that contacts the bottom surface of the sliding groove 5 is a second inclined surface structure. The first inclined surface structure and the second inclined surface structure extend along the radial direction of the fixed mold core 1 or the moving mold core 2, and the first inclined surface structure and the second inclined surface structure are adapted to each other.

[0068] In some embodiments of this utility model described above, a first inclined surface structure and a second inclined surface structure are respectively provided on the bottom surface of the sliding groove 5 and the sliding insert 6. The first inclined surface structure and the second inclined surface structure extend along the radial direction of the fixed mold core 1 or the moving mold core 2, and the first inclined surface structure and the second inclined surface structure are adapted to each other. The first inclined surface structure and the second inclined surface structure can also realize the radial displacement of the sliding insert 6 and the sliding groove 5, thereby enabling the positioning of the sliding insert 6. This effectively ensures that when the sliding insert 6 slides into the sliding groove 5, the moving mold core 2 and the fixed mold core 1 are installed in place, improving the positioning accuracy of the moving mold core 2 and the fixed mold core 1, limiting the radial displacement of the moving mold core 2, and ensuring the assembly accuracy.

[0069] In some embodiments of this utility model, the sliding insert 6 is a cylindrical structure, and the sliding groove 5 is a cylindrical groove adapted to the cylindrical structure.

[0070] In some embodiments of this utility model, the sliding insert 6 is a cylindrical structure, and the sliding groove 5 is a cylindrical groove. The sliding insert 6 and the sliding groove 5 cooperate to ensure that the sliding insert 6 and the sliding groove 5 have several sliding contact surfaces with different orientations. The sliding contact surfaces can increase the assembly contact area of ​​the moving mold core 2 and the fixed mold core 1, thereby effectively reducing wear. When the moving mold core 2 is placed into the fixed mold core 1, the sliding insert 6 and the sliding groove 5 cooperate to slide, which improves the positioning accuracy of the moving mold core 2 and the fixed mold core 1. This ensures that the connecting pin 8 on the stator core 9 is accurately positioned with the pin hole 7 on the fixed mold core 1, avoiding problems such as misaligned or missing connecting pins that could damage the stator.

[0071] This utility model also provides an injection mold, including a moving mold core 2, a fixed mold core 1, a stator core 9, and an assembly and positioning structure for the moving mold core 2 and the fixed mold core 1 as described above, wherein the stator core 9 is mounted on the fixed mold core 1.

[0072] This utility model also provides an injection mold, including the moving mold core 2 and fixed mold core 1 assembly and positioning structure as described above. The moving mold core 2 and fixed mold core 1 assembly and positioning structure has the ability to position the sliding insert 6, effectively ensuring that when the sliding insert 6 slides into the sliding groove 5, the moving mold core 2 and fixed mold core 1 are installed in place, improving the positioning accuracy of the moving mold core 2 and fixed mold core 1, limiting the radial displacement of the moving mold core 2, and ensuring the beneficial effect of assembly accuracy.

[0073] In some embodiments of this utility model, the fixed mold core 1 is provided with a pin hole 7, and the stator core 9 is provided with a connecting pin 8, the connecting pin 8 being provided in correspondence with the pin hole 7.

[0074] In some of the embodiments of this utility model described above, the sliding insert 6 and the sliding groove 5 cooperate to slide, which improves the positioning accuracy of the moving mold core 2 and the fixed mold core 1, and can ensure that the connecting pin 8 on the stator core 9 is accurately positioned with the pin hole 7 on the fixed mold core 1, avoiding problems such as misaligned or missing connecting pins 8 that could damage the stator.

[0075] Example 1:

[0076] The injection mold provided by this utility model includes a moving mold core 2, a fixed mold core 1 and a stator core 9. The stator core 9 is mounted on the fixed mold core 1. The fixed mold core 1 is provided with a pin hole 7. The stator core 9 is provided with a connecting pin 8. The connecting pin 8 is correspondingly arranged with the pin hole 7.

[0077] The moving mold core 2 is provided with a positioning hole 4, and the fixed mold core 1 is provided with a positioning post 3. The positioning post 3 is a semi-cylindrical structure, and the positioning hole 4 is adapted to the positioning post 3.

[0078] A sliding groove 5 is provided on the positioning post 3, and a sliding insert 6 is provided on the wall of the positioning hole 4. The sliding insert 6 cooperates with the sliding groove 5. The sliding insert 6 has a wedge-shaped structure, and the sliding groove 5 is a wedge-shaped groove adapted to the wedge-shaped structure.

[0079] Specifically, both sides of the wedge-shaped structure are inclined planes, and the inclined planes on both sides of the wedge-shaped structure are symmetrically distributed.

[0080] Example 2:

[0081] The difference between this embodiment 2 and embodiment 1 is that the sliding groove 5 is disposed on the wall of the positioning hole 4, and the sliding insert 6 is disposed on the positioning post 3.

[0082] In the description of this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0083] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A positioning structure for assembling a moving mold core and a fixed mold core, characterized in that, include: A sliding insert is provided on one of the positioning post and the wall of the positioning hole; A sliding groove is provided on the other side of the positioning post and the positioning hole wall; The sliding insert mates with the sliding groove, and the sliding insert and the sliding groove have at least two sliding contact surfaces with different orientations.

2. The assembly and positioning structure for the moving mold core and the fixed mold core according to claim 1, characterized in that, The sliding insert has a wedge-shaped structure, and the sliding groove is a wedge-shaped groove adapted to the wedge-shaped structure.

3. The assembly and positioning structure for the moving mold core and the fixed mold core according to claim 2, characterized in that, Both sides of the wedge-shaped structure are inclined planes.

4. The assembly and positioning structure for the moving mold core and the fixed mold core according to claim 2, characterized in that, The inclined surfaces on both sides of the wedge-shaped structure are symmetrically distributed.

5. The assembly and positioning structure for the moving mold core and the fixed mold core according to claim 1, characterized in that, The length of the sliding insert is less than the length of the sliding groove.

6. The assembly and positioning structure for the moving mold core and the fixed mold core according to claim 1, characterized in that, The sliding insert is a dovetail protrusion, and the sliding groove is a dovetail groove.

7. The assembly and positioning structure for the moving mold core and the fixed mold core according to claim 6, characterized in that, The bottom surface of the sliding groove is a first inclined surface structure, and the end face of the sliding insert that contacts the bottom surface of the sliding groove is a second inclined surface structure. The first inclined surface structure and the second inclined surface structure extend along the radial direction of the fixed mold core or the moving mold core, and the first inclined surface structure and the second inclined surface structure are adapted to each other.

8. The assembly and positioning structure for the moving mold core and the fixed mold core according to claim 1, characterized in that, The sliding insert has a cylindrical structure, and the sliding groove is a cylindrical groove adapted to the cylindrical structure.

9. An injection mold, characterized in that, It includes a moving mold core, a fixed mold core, a stator core, and an assembly and positioning structure for the moving mold core and the fixed mold core as described in any one of claims 1-8, wherein the stator core is mounted on the fixed mold core.

10. The injection mold according to claim 9, characterized in that, The fixed mold core is provided with a pin insertion hole, and the stator iron core is provided with a connecting pin, which is provided in correspondence with the pin insertion hole.

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