CN215750403U - Embedded part limiting die - Google Patents

Abstract

The application relates to a spacing mould of built-in fitting relates to the injection mold field. The embedded part limiting mold is used for limiting the movement of an embedded part during injection molding, and comprises a first mold, wherein the first mold is provided with a positioning part, and the positioning part is used for bearing the embedded part; the second die is provided with a limiting part corresponding to the positioning part; the first die and the second die are arranged oppositely along the first direction, the embedded part limiting die is in a working state, and when the embedded part limiting die is in the working state, the limiting portion and the positioning portion clamp the embedded part. The embedded part limiting mold comprises a first mold and a second mold. The first mold is provided with a positioning part for bearing the embedded part, the second mold is provided with a limiting part corresponding to the positioning part, and the positioning part and the limiting part can clamp the embedded part so as to fix the embedded part in the injection molding process, so that the qualification rate of injection molded products is improved, and the production and manufacturing costs are reduced.

Description

Embedded part limiting die

Technical Field

The application relates to the field of injection molds, in particular to a limiting mold for an embedded part.

Background

As automobiles are the most important vehicles in daily life, in recent years, with the continuous increase of the sales volume of automobiles, the demand of host factories for automobile parts is correspondingly increased, and how to reduce the cost of the automobile parts is crucial to controlling the cost of the whole automobile.

Most automobile spare and accessory parts are plastic parts, and injection molding is the main forming mode of the plastic parts. When injection molding is carried out on plastic parts provided with embedded parts, the mold in the prior art is difficult to fix the embedded parts, the embedded parts are easy to loosen, the qualification rate of products is low, the cost is high, and the cost cannot be effectively controlled during mass production.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a spacing mould of locating part, this spacing mould of built-in fitting is used for when moulding plastics, and restriction built-in fitting removes to improve the qualification rate of product, and reduce cost effectively.

The application provides an embedded part limiting mold which is used for limiting the movement of an embedded part during injection molding, and comprises a first mold, wherein the first mold is provided with a positioning part, and the positioning part is used for bearing the embedded part; the second die is provided with a limiting part corresponding to the positioning part; the first die and the second die are arranged oppositely along the first direction, the embedded part limiting die is in a working state, and when the embedded part limiting die is in the working state, the limiting portion and the positioning portion clamp the embedded part.

The embedded part limiting mold comprises a first mold and a second mold. The first mold is provided with a positioning part for bearing the embedded part, the second mold is provided with a limiting part corresponding to the positioning part, and the positioning part and the limiting part can clamp the embedded part so as to fix the embedded part in the injection molding process, so that the qualification rate of injection molded products is improved, and the production and manufacturing costs are reduced.

In some embodiments of the present application, the position-limiting portion is a first position-limiting column, and the first position-limiting column and the positioning portion are respectively used for abutting against two surfaces of the embedded part, which are opposite to each other along the first direction, so as to clamp the embedded part.

In the above scheme, in the arrangement mode, the columnar limiting part can clamp the embedded part with the positioning part, so that the problem that the embedded part moves in the injection molding process is avoided, the qualification rate of injection molding products is improved, and the production and manufacturing cost is effectively reduced.

In some embodiments of the present application, on a plane perpendicular to the first direction, at least a partial projection of the first position-limiting pillar overlaps with a projection of the positioning portion.

In the scheme, the arrangement mode can avoid that when the first limiting column and the positioning part clamp the embedded part, the bending moment borne by the embedded part is small, the integrity of the embedded part can be ensured, the embedded part can not deform due to the clamping of the first limiting column and the positioning part, the qualification rate of a product manufactured by the injection molding of the embedded part limiting mold is further ensured, and the cost is effectively reduced.

In some embodiments of the present application, the first position-limiting columns are provided in a plurality, and the plurality of first position-limiting columns are distributed at intervals around the central axis of the positioning portion.

In the above scheme, according to the arrangement mode, the total area of the first limiting columns and the abutting joint of the embedded part can be increased through the arrangement of the first limiting columns, the clamping force of the first limiting columns and the positioning parts on the embedded part is increased, the clamping stability of the first limiting columns and the positioning parts on the embedded part can be improved, the embedded part is prevented from shifting in the injection molding process, the qualification rate of products manufactured through the embedded part limiting mold is improved, and the cost is effectively reduced.

In some embodiments of the present application, a side of the first mold facing the second mold is provided with a positioning surface, and the positioning portion is provided on the positioning surface.

In the above scheme, in this arrangement, the first mold is provided with the positioning surface, and the positioning portion can be integrally formed on the positioning surface or connected to the positioning surface.

In some embodiments of the present application, the positioning portion is a positioning boss, and the positioning boss is used for bearing the embedded part.

In the scheme, in the arrangement mode, the positioning part is the positioning boss protruding out of the positioning surface, the embedded part is borne by the positioning boss, the accommodating space which is formed by the embedded part and the positioning boss and used for accommodating the embedded part is large in size in an injection molding product, the injection molding material can effectively coat the embedded part, and the embedded part is not easy to fall off.

In some embodiments of the present application, the positioning boss has a bearing surface, and a distance from the limiting portion to the bearing surface is less than or equal to a height of the positioning boss.

In the scheme, according to the arrangement mode, the size of the embedded part is smaller than the height of the positioning boss along the first direction, and in a formed product, the embedded part can be stably accommodated in an accommodating space formed by the embedded part and the positioning boss together, is coated by an injection molding material and is not easy to fall off.

In some embodiments of the present application, a second limiting column is disposed on the positioning boss, the second limiting column extends along the first direction, and the second limiting column is configured to abut against the second mold.

In the scheme, the arrangement mode can limit the pre-embedded part from moving on the plane where the bearing surface is located, further ensures the position of the pre-embedded part in an injection molding product, further improves the qualification rate of the product produced and manufactured by the pre-embedded part limiting mold, and effectively reduces the cost.

In some embodiments of the present application, the positioning portion is a positioning groove for receiving an embedded part.

In the above scheme, location portion still can be the constant head tank, holds the built-in fitting through the constant head tank, and in the first direction, the constant head tank can bear the built-in fitting, and simultaneously, the constant head tank can also pass through the peripheral wall butt of internal perisporium and built-in fitting to make the built-in fitting can't remove in the plane at loading end place.

In some embodiments of the present application, the first mold is provided with a plurality of positioning portions.

In the scheme, the positioning parts can be used for bearing the embedded parts, so that the embedded parts can be embedded in different positions of the embedded part limiting mold in an injection molding product, the use range of the embedded part limiting mold is expanded, and the applicability of the embedded part limiting mold is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic view of an embedded part limiting mold according to an embodiment of the present application;

FIG. 2 is a schematic view of a projection of an embedment and a projection of a positioning boss overlapping as provided in an embodiment of the present application;

fig. 3 is a schematic diagram of a projection of a positioning boss located inside a projection of an embedment according to an embodiment of the present application.

Icon: 1-limiting a die for an embedded part; 11-a first mould; 111-a positioning surface; 112-a positioning section; 1121-bearing surface; 113-a second restraint post; 12-a second mold; 121-a limiting part; 13-a mould cavity; 20-embedded parts.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, and are only used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

As automobiles are the most important vehicles in daily life, in recent years, with the continuous increase of the sales volume of automobiles, the demand of host factories for automobile parts is correspondingly increased, and how to reduce the cost of the automobile parts is crucial to controlling the cost of the whole automobile.

Most automobile spare and accessory parts are plastic parts, and injection molding is the main forming mode of the plastic parts. When injection molding is carried out on plastic parts provided with embedded parts, the mold in the prior art is difficult to fix the embedded parts, the embedded parts are easy to loosen, the qualification rate of products is low, the cost is high, and the cost cannot be effectively controlled during mass production.

In view of this, this application provides a spacing mould of built-in fitting, this built-in fitting spacing mould includes first mould and second mould. The first die is provided with a positioning part for bearing the embedded part, the second die is provided with a limiting part corresponding to the positioning part, and the positioning part and the limiting part can clamp the embedded part so as to fix the embedded part in the injection molding process, so that the qualification rate of products is improved, and the production and manufacturing costs are reduced.

The embedded part limiting die is described below according to the attached drawings.

As shown in fig. 1, the present application provides an embedment positioning die 1 for limiting the movement of an embedment 20 during injection molding, wherein the embedment positioning die 1 includes a first die 11 and a second die 12.

As shown in fig. 2, the first mold 11 is provided with a positioning portion 112, the positioning portion 112 is used for bearing the embedded part 20, the second mold 12 is provided with a limiting portion 121 corresponding to the positioning portion 112, and the first mold 11 and the second mold 12 are arranged opposite to each other along the first direction. In addition, the embedded part limiting mold 1 has an operating state, and when the embedded part limiting mold 1 is in the operating state, the limiting part 121 and the positioning part 112 clamp the embedded part 20, that is, the embedded part 20 is clamped by the limiting part 121 and the positioning part 112, so that the embedded part 20 is limited in the injection molding process.

The first mold 11 may be a lower mold of the embedded part limiting mold 1, the second mold may be an upper mold of the embedded part limiting mold 1, and the embedded part limiting mold 1 is in a working state, that is, the first mold 11 and the second mold 12 are buckled, and a mold cavity 13 for injection molding is formed, so that a product embedded with the embedded part 20 is formed in an injection molding manner. When the first mold 11 and the second mold 12 are engaged, the first mold 11 may be close to the second mold 12, or the second mold 12 may be close to the first mold 11.

The embedded part limiting mold 1 comprises a first mold 11 and a second mold 12. The first mold 11 is provided with a positioning portion 112 for bearing the embedded part 20, the second mold 12 is provided with a limiting portion 121 corresponding to the positioning portion 112, and the positioning portion 112 and the limiting portion 121 can clamp the embedded part 20 so as to fix the embedded part 20 in the injection molding process, so that the qualification rate of the injection molded product is improved, and the production and manufacturing costs are reduced.

It should be noted that, as shown in fig. 1, the embedment limiting mold 1 is described below with the first direction as a vertical direction, that is, the X direction in fig. 1 as a first direction.

As shown in fig. 2, in some embodiments of the present application, the limiting portion 121 is a first limiting column, and the first limiting column and the positioning portion 112 are respectively used for abutting against two opposite surfaces of the embedded part 20 along the first direction X to clamp the embedded part 20 and limit the embedded part 20 from deviating in the injection molding process, so as to improve the yield of the product injection-molded by the embedded part limiting mold 1 and reduce the production cost. In other embodiments of the present application, the position-limiting portion 121 may also be a position-limiting block, or the position-limiting portion 121 may also be a position-limiting groove.

Specifically, in some embodiments of the present application, the first position-limiting pillar may be a pillar, such as a cylinder, or a square pillar. In other embodiments of the present application, the first position-limiting column may also be cylindrical, that is, one end of the first position-limiting column, which is used for abutting against the embedded part 20, has an opening, and at this time, an end surface of the first position-limiting column, which is used for abutting against the embedded part 20, is annular.

Further, on a plane perpendicular to the first direction X, at least a partial projection of the first position-limiting pillar overlaps with a projection of the positioning portion 112. By the arrangement mode, when the embedded part 20 is clamped by the first limiting column and the positioning part 112, the clamping stability of the embedded part 20 by the first limiting column and the positioning part 112 is ensured. Meanwhile, in the arrangement mode, at least part of projection of the first limiting column is overlapped with projection of the positioning part 112, namely, when the embedded part 20 is clamped, along the first direction X, the positions of the first limiting column and the positioning part 112, which are abutted against the embedded part 20, are at least partially overlapped, the bending moment borne by the embedded part 20 is small, the integrity of the embedded part 20 can be ensured, the embedded part 20 can be ensured not to deform due to clamping of the first limiting column and the positioning part 112, the qualification rate of products manufactured through injection molding of the embedded part limiting mold 1 is further ensured, and the cost is effectively reduced.

Specifically, in some embodiments of the present application, on a plane perpendicular to the first direction X, all projections of the first limiting column overlap with the projection of the positioning portion 112. It should be noted that, all projections of the first limit column overlap with the projection of the positioning portion 112, the projection profile of the first limit column may coincide with the projection profile of the positioning portion 112, or the projection profile of the first limit column may be smaller in area than the projection profile of the positioning portion 112 and the projection profile of the first limit column is located inside the projection of the positioning portion 112, that is, the projection profile of the first limit column is located inside the projection profile of the positioning portion 112.

In other embodiments of the present application, as shown in fig. 2, on a plane perpendicular to the first direction X, a partial projection of the first position-limiting pillar overlaps with a projection of the positioning portion 112, that is, the partial projection of the first position-limiting pillar is located inside the projection of the positioning portion 112, and another partial projection of the first position-limiting pillar is located outside the projection of the positioning portion 112. In this arrangement, all projections of the positioning portion 112 may be located inside the projection of the first limiting column on a plane perpendicular to the first direction X; the projection of the first position-limiting pillar and the projection of the positioning portion 112 may partially overlap, and the projection of the first position-limiting pillar and the projection of the positioning portion 112 may also have an area that does not overlap with each other.

It should be noted that the area of the portion where the projection of the first limiting column overlaps the projection of the positioning portion 112 may be determined according to the shape of the actual product, and the strength, rigidity, and bending resistance coefficient of the embedded part 20, as long as it can be ensured that the embedded part 20 does not deform during the clamping process of the first limiting column and the positioning portion 112, and the deformation mainly means that plastic deformation does not occur.

In other embodiments of the present application, in the case where the strength, the rigidity, and the bending resistance coefficient of the embedded part 20 are sufficient, the projection of the first position-limiting column may not overlap the projection of the positioning portion 112 on the plane perpendicular to the first direction X, so as to increase the area of the embedded part 20 clamped by the first position-limiting column and the positioning portion 112.

Further, in some embodiments of the present application, the first restraint post may be provided as a single piece.

In other embodiments of the present disclosure, as shown in fig. 2, a plurality of first position-limiting columns may be provided, and the embedded part 20 is clamped by the plurality of first position-limiting columns and the positioning part 112 at the same time. This kind of setting mode, the setting of a plurality of first spacing posts can improve first spacing post and location portion 112 to the centre gripping stability of built-in fitting 20, prevents that the built-in fitting 20 from shifting at the in-process of moulding plastics, and then has improved the qualification rate of the product of manufacturing through this built-in fitting limit mold 1, reduce cost effectively.

Specifically, as shown in fig. 2, in some embodiments of the present application, the plurality of first limiting columns are distributed at intervals around the central axis of the positioning portion 112, and it is understood that the plurality of first limiting columns are distributed at intervals on a circumference taking the central axis of the positioning portion 112 as a circle center.

In some embodiments of the present application, the plurality of first limiting columns may be distributed at equal angular intervals around the central axis of the positioning portion 112, for example, when two first limiting columns are provided, the two first limiting columns may be distributed at 180 ° intervals around the central axis of the positioning portion 112; or, when three first limiting columns are provided, the three first limiting columns may be distributed at intervals of 120 ° around the centerline axis of the positioning portion 112; still alternatively, when four first position-limiting columns are provided, the four first position-limiting columns may also be distributed around the central axis of the positioning portion 112 at intervals of 90 °. This kind of mode of setting up, during a plurality of first spacing post butt and built-in fitting 20, can apply comparatively even pressure to built-in fitting 20, can not lead to the problem that local deformation appears in built-in fitting 20 because of built-in fitting 20 atress is uneven, has guaranteed the qualification rate of injection moulding back product, reduce cost effectively.

In other embodiments of the present application, in the case that the strength, the rigidity, and the bending resistance coefficient of the embedded part 20 are sufficient, the plurality of first limiting columns may be distributed at any intervals as long as the plurality of first limiting columns can cooperate with the positioning portion 112 to stably clamp the embedded part 20.

Meanwhile, in still other embodiments of the present application, the plurality of first limiting columns may also be located on different circumferences around the central axis of the positioning portion 112, all the first limiting columns may abut against the embedded part 20 and may be capable of cooperating with the positioning portion 112 to clamp the embedded part 20, that is, the plurality of embedded parts 20 may be distributed at will, and on a plane perpendicular to the first direction X, projections of all the first limiting columns may overlap projections of the embedded part 20, and optionally, projections of the plurality of first limiting columns are located inside projections of the embedded part 20.

It should be noted that, when the limiting portion 121 is a first limiting column, the product injection-molded by the embedded part limiting mold 1 will not be filled with the injection-molded material because the first limiting column will abut against one surface of the embedded part 20, that is, the portion provided with the first limiting column does not belong to the mold cavity 13, that is, in the final injection-molded product, a through hole will be formed at the portion of the second mold 12 provided with the first limiting column, and the shape of the inner wall of the through hole is the same as the shape of the outer wall of the first limiting column.

As shown in fig. 2, in some embodiments of the present application, a side of the first mold 11 facing the second mold 12 is provided with a positioning surface 111, and the positioning portion 112 is provided on the positioning surface 111.

Further, as shown in fig. 2, in some embodiments of the present application, the positioning portion 112 is a positioning boss. It can be understood that, on the positioning surface 111 of the first mold 11, a protrusion is provided, which deviates from and protrudes from the positioning surface 111, and the protrusion is a positioning boss, and the positioning boss is used for bearing the embedded part 20 and can cooperate with the limiting part 121 to clamp the embedded part 20.

It should be noted that in the injection molded product, the embedment 20 and the positioning boss can together form a receiving space for receiving the embedment 20. It is understood that, during the injection molding process, the positions of the embedded part 20 and the positioning boss do not belong to the mold cavity 13, and there will be no injected material filling, that is, in the final product, no injected material is molded at the positions of the embedded part 20 and the positioning boss, and the embedded part 20 is disposed in the accommodating space where no injected material is molded.

As shown in fig. 2, the positioning boss has a bearing surface 1121, and the embedded part 20 is placed on the bearing surface 1121, so that the positioning boss can bear the embedded part 20. On a plane perpendicular to the first direction X, a projection of the supporting surface 1121 should overlap with a projection of the embedded part 20, and an edge contour of the projection of the supporting surface 1121 also overlaps with an edge contour of the projection of the embedded part 20, or the projection of the supporting surface 1121 is located inside the projection of the embedded part 20.

As shown in fig. 2, in some embodiments of the present application, the size of the bearing surface 1121 is the same as the size of the embedded part 20, that is, on a plane perpendicular to the first direction X, a projection of the bearing surface 1121 overlaps a projection of the embedded part 20, and an edge contour of the projection of the bearing surface 1121 overlaps an edge contour of the projection of the embedded part 20. According to the arrangement mode, in the injection molded product, the embedded part 20 can be stably coated by the injection molded material and is not easy to fall off, namely, the embedded part 20 can be stably arranged in the accommodating space of the injection molded product.

As shown in fig. 3, in other embodiments of the present application, the size of the bearing surface 1121 is smaller than the size of the embedded part 20, i.e., a projection of the bearing surface 1121 is located inside a projection of the embedded part 20 on a plane perpendicular to the first direction X. According to the arrangement mode, in the product after injection molding, along the first direction X, the two sides of the embedded part 20 are coated by the injection molding material, namely, the two sides of the embedded part 20 along the first direction X are clamped by the injection molding material, the embedded part 20 can be stably arranged in the accommodating space of the product after injection molding, the embedded part 20 cannot fall off, and the stability of the embedded part 20 in the product after injection molding is improved. By the arrangement mode, the quality of the injection molded product through the embedded part limiting mold 1 is further guaranteed, the qualified rate of the product is improved, and the cost is effectively reduced.

As shown in fig. 2, in some embodiments of the present application, a distance between the limiting portion 121 and the supporting surface 1121 is less than or equal to a height of the positioning boss, that is, a distance between the limiting portion 121 and the supporting surface 1121 is less than or equal to a dimension of the positioning boss along the first direction X, where a dimension of the embedded part 20 along the first direction X is also understood to be less than or equal to a dimension of the positioning boss, or it is also suspected that a dimension of a receiving space for receiving the embedded part 20 along the first direction X in an injection-molded product is greater than or equal to twice a dimension of the embedded part 20 along the first direction X. This kind of mode of setting can guarantee in the product after injection moulding, along first direction X, two face homogeneous moulding of built-in fitting 20 have the material of certain thickness, and built-in fitting 20 can set up in accommodation space steadily, and is difficult for coming off from accommodation space.

Further, in some embodiments of the present application, the positioning boss is formed on the positioning surface 111, i.e., the positioning boss is integrally formed with the first mold 11. In other embodiments of the application, the positioning boss can be further detachably connected to the positioning surface 111, that is, the positioning boss is detachably connected to the first mold 11, and this setting mode can be installed on the positioning boss with different sizes in the first direction X according to the requirements of different products when different products are injection molded, so as to meet the size requirements of different products for the accommodating space for the embedded part 20, and can be applied to the embedded part 20 with different sizes in the first direction X, thereby improving the application range of the embedded part limiting mold 1, and further reducing the use cost of the embedded part limiting mold 1.

The detachable connection may be that the positioning boss is connected to the first mold 11 by a threaded fastener (e.g., a bolt), or the detachable connection may also be that the positioning boss is clamped to the first mold 11, or the detachable connection may also be that the positioning boss is connected to the first mold 11 by a positioning pin.

As shown in fig. 2, in some embodiments of the present application, a second position-limiting pillar 113 is disposed on the positioning boss, and the second position-limiting pillar 113 extends along the first direction X. The second limiting columns 113 are mainly used for limiting the embedded part 20 provided with the through hole, that is, when the embedded part 20 is provided with the through hole, the second limiting columns 113 are used for being inserted into the through hole of the embedded part 20 to limit that the embedded part 20 cannot move on the plane where the bearing surface 1121 is located. This kind of mode of setting can effectually prevent that the problem of pre-embedded part 20 drunkenness from appearing at the in-process of moulding plastics, has improved the qualification rate through the spacing mould 1 injection moulding's of this pre-embedded part product, and then the cost is reduced effectively.

In some embodiments of the present application, the second restraint post 113 may be a cylindrical post, such as a cylinder, or a square-cylindrical post. In other embodiments of the present application, the second position-limiting column 113 may also be cylindrical, that is, one end of the second position-limiting column 113, which is used for abutting against the embedded part 20, has an opening, and at this time, an end surface of the second position-limiting column 113, which is used for abutting against the embedded part 20, is annular.

Further, as shown in fig. 2, in some embodiments of the present application, the second position-limiting pillar 113 is configured to abut against the second mold 12, and it is understood that an end of the second position-limiting pillar 113 facing away from the first mold 11 abuts against the second mold 12. According to the arrangement mode, in the injection molding process, no injection molding material is formed at the position of the second limiting column 113, namely, a through hole is formed in a final molded product, the inner wall of the through hole corresponds to the outer wall of the second limiting column 113, namely, the through hole is communicated with the through hole of the embedded part 20, so that the product can be connected with other parts through threaded fasteners (such as bolts and studs).

In some embodiments of the present application, the positioning portion 112 may also be a positioning groove, that is, a positioning groove is provided on the positioning surface 111 of the first mold 11 to bear the embedded part 20 and play a certain limiting role on the embedded part 20. It is to be understood that when the locator 112 is a locator, the embedment 20 may be received in the locator.

Specifically, in some embodiments of the present application, the inner peripheral wall of the positioning groove matches with the outer peripheral wall of the embedded part 20, that is, after the embedded part 20 is accommodated in the positioning groove, the inner peripheral wall of the positioning groove is attached to the outer peripheral wall of the embedded part 20, so as to realize the limiting function of the embedded part 20.

It should be noted that, in the final molded product, since the part of the positioning groove is not molded by the injection molding material, in order to enable the molded product to cover at least part of the embedded part 20, the depth of the positioning groove should be smaller than the thickness of the embedded part 20, that is, along the first direction X, the size of the positioning groove is smaller than the size of the embedded part 20, that is, along the first direction X, the distance between the surface of the positioning groove facing the second mold 12 and the positioning surface 111 is smaller than the size of the embedded part 20, so that in the molded product, the embedded part 20 can be covered by the injection molding material without easily falling off.

Further, in some embodiments of the present application, when the embedded part 20 is an iron embedded part 20, a magnetic part may be further disposed at a position of the first mold 11 close to the positioning groove, and the iron embedded part 20 is firmly adsorbed in the positioning groove, so as to improve the positioning and limiting effects on the embedded part 20.

In some embodiments of the present application, the first mold 11 is provided with a plurality of positioning portions 112, and each positioning portion 112 can be used for bearing the embedded part 20. When a product to be injection molded has a plurality of embedded parts 20, the first mold 11 is correspondingly provided with a plurality of positioning portions 112, so that the embedded parts 20 can be embedded in the molded product.

Meanwhile, in order to prevent the embedded part 20 from shifting in the injection molding process and reducing the product yield, the second mold 12 may further be provided with a plurality of limiting portions 121, and the plurality of limiting portions 121 are in one-to-one correspondence with the plurality of positioning portions 112, so that when the embedded part limiting mold 1 is in a working state, that is, when the first mold 11 and the second mold 12 are closed, each embedded part 20 can be clamped by the corresponding positioning portion 112 and the corresponding limiting portion 121. According to the arrangement mode, the embedded part 20 is clamped through the positioning part 112 and the limiting part 121, the qualification rate of the product injection molded through the embedded part limiting mold 1 is improved, and the cost is effectively reduced.

In some embodiments of the application, a product injection-molded by the embedded part limiting mold 1 may be made of Nylon-66 (Nylon-66, polyhexamethylene adipamide), the Nylon-66 has high mechanical strength, hardness and rigidity, and the density of the Nylon-66 is low, so that the embedded part limiting mold is suitable for application scenes requiring wear resistance and heat resistance. Meanwhile, different types of additives can be added into the nylon-66 to modify the nylon-66 so as to be suitable for different application scenes, for example, the oxidation resistance of the nylon-66 can be improved by adding a stabilizer, or the rigidity of the nylon-66 material can be further enhanced by adding glass fiber, and the wear resistance of the nylon-66 material can be further improved by adding molybdenum disulfide and polytetrafluoroethylene. In other embodiments of the present application, a product injection-molded by the insert limiting mold 1 may also be made of plastic materials such as ABS (Acrylonitrile-Butadiene-Styrene) engineering plastic, PC (Polycarbonate) plastic, PE (Polyethylene) plastic, or PP (Polypropylene) plastic.

It should be noted that the features of the embodiments in the present application may be combined with each other without conflict.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a spacing mould of built-in fitting for when moulding plastics, restriction built-in fitting removes, its characterized in that includes:

the first die is provided with a positioning part, and the positioning part is used for bearing the embedded part;

the second die is provided with a limiting part corresponding to the positioning part;

the first die and the second die are arranged oppositely along a first direction, the embedded part limiting die is in a working state, and when the embedded part limiting die is in the working state, the limiting portion and the positioning portion clamp the embedded part.

2. The embedded part limiting mold according to claim 1, wherein the limiting portion is a first limiting column, and the first limiting column and the positioning portion are respectively used for abutting against two surfaces of the embedded part, which are opposite to each other along the first direction, so as to clamp the embedded part.

3. The embedment limiting mold of claim 2, wherein at least a partial projection of the first limiting column overlaps a projection of the positioning portion on a plane perpendicular to the first direction.

4. The embedded part limiting mold according to claim 2, wherein the first limiting columns are provided in plurality, and the plurality of first limiting columns are distributed at intervals around a central axis of the positioning portion.

5. The embedded part limiting mold according to claim 1, wherein a positioning surface is provided on a side of the first mold facing the second mold, and the positioning portion is provided on the positioning surface.

6. The embedment limiting mold of claim 1, wherein the positioning portion is a positioning boss for carrying the embedment.

7. The embedded part limiting mold of claim 6, wherein the positioning boss has a bearing surface, and a distance from the limiting part to the bearing surface is less than or equal to a height of the positioning boss.

8. The embedment limiting mold of claim 6, wherein a second limiting post is disposed on the positioning boss, the second limiting post extending along the first direction, the second limiting post configured to abut against the second mold.

9. The embedment limiting mold of claim 1, wherein the positioning portion is a positioning groove for receiving the embedment.

10. The embedment limiting mold of claim 1, wherein the first mold is provided with a plurality of the positioning portions.

Images