CN113199706B

CN113199706B - Injection mold for integrally forming metal inserts

Info

Publication number: CN113199706B
Application number: CN202110643052.0A
Authority: CN
Inventors: 陈刚
Original assignee: Suzhou Yunda Plastic Electronics Co ltd
Current assignee: Suzhou Yunda Plastic Electronics Co ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2023-07-04
Anticipated expiration: 2041-06-09
Also published as: CN113199706A

Abstract

The invention discloses an integral molding injection mold for a metal insert, which comprises the following components: an upper die assembly, and a lower die assembly corresponding to the upper die assembly; wherein, go up the module and include: an upper die frame, wherein an upper die core is arranged in the upper die frame; the lower die assembly includes: the lower die frame is internally provided with a lower die core, and the lower die core is matched with the upper die core; the surface of the lower die core is provided with at least two insert placing parts, and each insert placing part is provided with an insert; at least two first inserts are arranged in the upper die core, and each first insert is located right above a corresponding insert placing part. According to the invention, the plurality of first inserts are arranged at the part of the upper die core, which is positioned right above the insert placing part, so that when the first inserts are damaged, only the first inserts are required to be replaced, the upper die core is not required to be replaced integrally, and the cost is reduced.

Description

Injection mold for integrally forming metal inserts

Technical Field

The invention relates to the technical field of dies. More particularly, the present invention relates to an injection mold for integrally molding a metal insert.

Background

In the field of mould technology, it is known to use injection moulds of different structural forms to achieve injection moulding of products. In the process of researching and realizing injection molding of products, the inventor finds that the injection mold in the prior art has at least the following problems:

firstly, the part of the upper die core, which is positioned right above the insert placing part, of the existing metal insert integrated molding injection mold is extremely easy to damage, and when the part of the upper die core, which is positioned right above the insert placing part, is damaged, the whole upper die core needs to be replaced and maintained, so that the cost is high; secondly, the insert is not limited and fixed in the existing metal insert integrated forming injection mold, so that the insert can move randomly in the product forming process, defective products are produced, the production cost is increased, and the working efficiency is reduced.

In view of the foregoing, it is necessary to develop an injection mold for integrally molding metal inserts to solve the above problems.

Disclosure of Invention

Aiming at the defects existing in the prior art, the main purpose of the invention is to provide the metal insert integrated injection mold, which is characterized in that a plurality of first inserts are arranged at the part of the upper mold insert, which is positioned right above the insert placing part, so that when the first inserts are damaged, only the first inserts are required to be replaced, the upper mold insert is not required to be replaced integrally, and the cost is reduced.

The invention also aims to provide a metal insert integrated forming device which is used for positioning and fixing an insert through an insert positioning module, so that the insert is prevented from moving randomly in the injection molding process of a die, defective products are caused, the cost is increased, and meanwhile, the production efficiency of the injection molding module is improved.

To achieve these objects and other advantages and in accordance with the purpose of the invention, there is provided a metal insert integrally molding injection mold comprising: upper die assembly

A lower die assembly corresponding to the upper die assembly;

wherein, go up the module and include: an upper die frame, wherein an upper die core is arranged in the upper die frame; the lower die assembly includes: the lower die frame is internally provided with a lower die core, and the lower die core is matched with the upper die core;

the surface of the lower die core is provided with at least two insert placing parts, and each insert placing part is provided with an insert;

at least two first inserts are arranged in the upper die core, each first insert is positioned right above a corresponding insert placing part,

when the upper die assembly and the lower die assembly are clamped along the Z-axis direction, a cavity is defined between the upper die core and the lower die core, and each insert is at least partially positioned in the cavity.

Preferably, the lower die assembly includes: a push rod module which is positioned right below the lower die frame,

the ejector rod module comprises: the two ejector rod drivers are arranged along the Z-axis direction, and are fixedly arranged at the side ends of the lower die frame;

the first connecting plate is in transmission connection with the power output end of the ejector rod driver;

the second connecting plate is fixedly arranged right above the first connecting plate; and

the third connecting plate is fixedly arranged right above the second connecting plate;

the surface of the third connecting plate is fixedly connected with push rods, the number of the push rods is not less than two, and each push rod penetrates through the lower die core.

Preferably, the ejector pin module further comprises: the at least two inclined top units are respectively positioned at two sides of the third connecting plate along the Y-axis direction, and are fixedly connected with the first connecting plate;

wherein, the oblique top unit includes: forming an inclined top; and

one end of each connecting strip is fixedly connected with the forming inclined roof, and the other end of each connecting strip is fixedly connected with the first connecting plate;

the length of the forming inclined top is slightly smaller than that of the lower die core.

Preferably, at least two second inserts are arranged in the forming inclined top, and each second insert is regularly arrayed along the X-axis direction.

Preferably, the inside of the forming inclined roof is provided with cooling water.

Preferably, the method further comprises: the insert positioning module is fixedly arranged at the side end of the lower die frame and is used for positioning and fixing each insert;

wherein, insert positioning module includes: the positioning driver is fixedly arranged on the surface of the lower die frame through a fixing plate;

the movable block is in transmission connection with the power output end of the positioning driver; and

the number of the positioning blocks is not less than two, and each positioning block is in transmission connection with the movable block;

the positioning driver drives the movable blocks to reciprocate along the X-axis direction, and then drives each positioning block to reciprocate along the Y-axis direction.

Preferably, a second positioning portion is provided on a surface of each of the insert placement portions, and the second positioning portion is integrally formed with the insert placement portion and extends from the surface of the insert placement portion in the Z-axis direction.

Preferably, the surface of the lower die core is provided with at least two positioning grooves, and each positioning groove is respectively positioned at the side of a corresponding insert placing part.

Preferably, at least two first clamping parts are arranged on the surface of each insert placing part;

at least two second clamping parts are arranged on the surface of the upper die core;

each second clamping part and a corresponding first clamping part are coaxial along the Z-axis direction.

Preferably, the ejector pin module further comprises: at least two location inclined tops, every the location inclined top is located the side of inserts portion of placing, and the side end of every location inclined top is equipped with third location portion.

One of the above technical solutions has the following advantages or beneficial effects: through setting up a plurality of first inserts in the part that last mould benevolence is located directly over the inserts portion of placing, when first insert damages, only need change first insert, need not with go up the whole change of mould benevolence has reduced the cost.

The other technical scheme has the following advantages or beneficial effects: the insert is positioned and fixed through the insert positioning module, the insert is prevented from moving randomly in the injection molding process of the mold, defective products are produced, the cost is increased, and meanwhile, the production efficiency of the injection molding module is improved.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

For a clearer description of an embodiment of the invention, reference will be made to the accompanying drawings of embodiments, which are given for clarity, wherein:

fig. 1 is a three-dimensional structural view of a metal insert integrally molded injection mold according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a metal insert integrally molded injection mold according to one embodiment of the present invention;

FIG. 3 is an exploded view of an injection mold for integrally molding a metal insert according to one embodiment of the present invention;

FIG. 4 is an exploded view of the upper core, lower core, ejector pin module and insert positioning module of an injection mold for integrally molding a metal insert according to one embodiment of the present invention;

FIG. 5 is a three-dimensional view of an insert positioning module in a metal insert integrally molded injection mold according to one embodiment of the present invention;

FIG. 6 is an exploded view of an insert positioning module in a metal insert molding injection mold according to one embodiment of the present invention;

FIG. 7 is a three-dimensional view of the upper insert in an injection mold for integrally molding a metal insert according to one embodiment of the present invention;

fig. 8 is a three-dimensional structure view of a lower core in an injection mold for integrally molding a metal insert according to an embodiment of the present invention;

FIG. 9 is a three-dimensional view of the pitched roof unit in a metal insert injection mold according to one embodiment of the present invention;

FIG. 10 is a cross-sectional view of a molded beveled top in a metal insert integrally molded injection mold in accordance with one embodiment of the present invention;

fig. 11 is a three-dimensional structural view of an insert in a metal insert integrally formed injection mold according to an embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other examples, which a person of ordinary skill in the art would obtain without undue burden based on the embodiments of the invention, are within the scope of the invention.

In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are defined with respect to the configuration shown in the drawings, and in particular, "height" corresponds to the top-to-bottom dimension, "width" corresponds to the left-to-right dimension, and "depth" corresponds to the front-to-back dimension, are relative concepts, and thus may vary accordingly depending on the location and use of the terms, and therefore these or other orientations should not be interpreted as limiting terms.

Terms (e.g., "connected" and "attached") relating to attachment, coupling, and the like refer to a relationship wherein these structures are directly or indirectly secured or attached to one another through intervening structures, as well as to a relationship wherein they are movably or rigidly attached, unless expressly stated otherwise.

According to an embodiment of the present invention, in combination with the illustrations of fig. 1 to 11, it can be seen that the metal insert integrally forms an injection mold, which includes: upper die assembly 12

A lower die assembly 11 corresponding to the upper die assembly 12;

wherein, the upper die assembly 12 comprises: an upper mold frame 122 having an upper mold core 124 disposed therein; the lower die assembly 11 includes: a lower mold frame 112, in which a lower mold core 114 is disposed, the lower mold core 114 being matched with the upper mold core 124;

at least two insert placement portions 1141 are provided on the surface of the lower mold core 114, and an insert 14 is provided at each insert placement portion 1141;

at least two first inserts 1242 are disposed in the upper mold core 124, each first insert 1242 is located right above a corresponding insert placement portion 1141,

when the upper die assembly 12 and the lower die assembly 11 are clamped in the Z-axis direction, a cavity is defined between the upper die core 124 and the lower die core 114, and each insert 14 is at least partially located inside the cavity.

It can be appreciated that the portion of the upper mold core 124 directly above the insert placement portion 1141 is extremely fragile, when the portion of the upper mold core 124 directly above the insert placement portion 1141 is damaged, the entire upper mold core 124 needs to be replaced and maintained, and the cost is relatively high, while the present invention provides at least two first inserts 1242 inside the upper mold core 124, wherein the first inserts 1242 are directly above a corresponding one of the insert placement portions 1141, and when the first inserts 1242 are damaged, only the first inserts need to be replaced, and the entire upper mold core 124 does not need to be replaced, thereby reducing the cost.

In a preferred embodiment of the present invention, the insert 14 comprises: a grip 141;

a first insert positioning portion 142 integrally formed with the grip portion 141;

a second insert positioning portion 143 integrally formed with the grip portion 141; and

a third insert positioning portion 144 integrally formed with the second insert positioning portion 143;

a first positioning hole 1431 is formed at the top end of the second insert positioning portion 143, and a third positioning hole 1441 is formed on the surface of the third insert positioning portion 144.

Further, the lower die assembly 11 includes: a push rod module 113 positioned right below the lower mold frame 112,

the ejector pin module 113 includes: at least two ejector drivers 1131, wherein each ejector driver 1131 is arranged along the Z-axis direction, and the ejector drivers 1131 are fixedly installed at the side ends of the lower mold frame 112;

the first connecting plate 1132 is in transmission connection with the power output end of the ejector rod driver 1131;

a second connection plate 1133 fixedly installed right above the first connection plate 1132; and

a third connection plate 1134 fixedly installed right above the second connection plate 1133;

the surface of the third connecting plate 1134 is fixedly connected with push rods 1136, the number of the push rods 1136 is not less than two, and each push rod 1136 penetrates through the lower die core 114.

In a preferred embodiment of the present invention, the lower die assembly 11 further includes: the lower die holder 111, the said ejector pin die set 113 is put in the said lower die holder 111;

the upper die assembly 12 further includes: an upper die plate 121 fixedly installed above the upper die frame 122; and

the glue inlet 123 is fixedly mounted on the surface of the upper die plate 121, and the glue inlet 123 is communicated with the cavity.

Further, the ejector pin module 113 further includes: at least two pitched roof units 1137, wherein the two pitched roof units 1137 are respectively located at two sides of the third connecting plate 1134 along the Y-axis direction, and the two pitched roof units 1137 are fixedly connected with the first connecting plate 1132;

wherein, the tilt head unit 1137 includes: forming a pitched roof 11371; and

at least two connecting strips 11372, wherein one end of each connecting strip 11372 is fixedly connected with the forming inclined top 11371, and the other end of each connecting strip 11372 is fixedly connected with the first connecting plate 1132;

the length of the forming beveled roof 1371 is slightly smaller than the length of the lower core 114.

It can be appreciated that the use of the shaped beveled roof 11371, which has a length slightly less than the lower core 114, facilitates ejection of the shaped product.

Further, at least two second inserts 11373 are disposed inside the molded inclined top 11371, and each second insert 11373 is regularly arrayed along the X-axis direction.

It can be appreciated that at least two second inserts 11373 are provided in the molded oblique top 11371, and when the second inserts 11373 are damaged, only the second inserts 11373 need to be replaced, the whole molded oblique top 11371 does not need to be replaced, and the production cost is reduced.

Further, a cooling water 113711 is provided in the molded inclined top 11371.

It will be appreciated that the cooling transport 113711 flows in the direction of the arrows shown in fig. 10 to cool the contoured beveled roof 11371 to facilitate the shaping of the product.

In a preferred embodiment of the present invention, at least two third inserts 115 are disposed inside the lower mold core 114, and when the third inserts 115 are damaged, only the third inserts 115 need to be replaced, and the entire lower mold core 114 does not need to be replaced, thereby reducing the production cost.

At least two fourth inserts 1243 are further disposed inside the upper mold core 124, and when the fourth inserts 1243 are damaged, only the fourth inserts 1243 need to be replaced, the whole upper mold core 124 does not need to be replaced, and production cost is reduced.

Further, the method further comprises the following steps: an insert positioning module 13 fixedly mounted at a side end of the lower mold frame 112, wherein the insert positioning module 13 positions and fixes each insert 14;

wherein, the insert positioning module 13 comprises: a positioning driver 131 fixedly installed on the surface of the lower mold frame 112 through a fixing plate 132;

the movable block 133 is in transmission connection with the power output end of the positioning driver 131; and

the number of the positioning blocks 134 is not less than two, and each positioning block 134 is in transmission connection with the movable block 133;

the positioning driver 131 drives the movable block 133 to reciprocate along the X-axis direction, and further drives each positioning block 134 to reciprocate along the Y-axis direction.

It can be appreciated that the positioning driver 131 drives the movable block 133 to reciprocate along the X-axis direction, and further drives each positioning block 134 to reciprocate along the Y-axis direction, so as to control the positioning blocks 134 to fix or release the insert.

In a preferred embodiment of the present invention, a side end of each positioning block 134 is provided with a first positioning portion 1341.

The first positioning portion 1341 is adapted to the first positioning hole 1431, so that the positioning block 134 is used for positioning and fixing the insert 14 in a preliminary manner through the cooperation of the first positioning portion 1341 and the first positioning hole 1431, so as to prevent the insert from moving randomly.

Further, a second positioning portion 1142 is provided on a surface of each of the insert placement portions 1141, and the second positioning portion 1142 is integrally formed with the insert placement portions 1141 and extends from the surface of the insert placement portions 1141 along the Z-axis direction.

In a preferred embodiment of the present invention, the second positioning portion 1142 is matched with the third positioning hole 1441, so that the insert 14 is further positioned and fixed by matching the second positioning portion 1142 with the third positioning hole 1441, so as to prevent the insert from moving randomly.

Further, at least two positioning grooves 1143 are formed on the surface of the lower mold core 114, and each positioning groove 1143 is located at a side of a corresponding insert placement portion 1141.

In a preferred embodiment of the present invention, the positioning groove 1143 is adapted to the first insert positioning portion 142, and the insert 14 is further positioned and fixed by the positioning groove 1143 and the first insert positioning portion 142, so as to prevent the insert from moving randomly.

Further, at least two first clamping portions 1144 are provided on a surface of each insert-placing portion 1141;

at least two second clamping portions 1241 are provided on the surface of the upper mold core 124;

each of the second clamping portions 1241 is concentric with a corresponding one of the first clamping portions 1144 along the Z-axis direction.

It can be appreciated that, the first clamping portion 1144 is matched with the second clamping portion 1241 to clamp and fix the third insert positioning portion 144 of the insert 14, so as to avoid the third insert positioning portion 144 of the insert 14 from directly contacting the upper mold core 124 and the lower mold core 115, thereby facilitating the forming of the product complex insert and integrally forming the insert and the product.

Further, the ejector pin module 113 further includes: at least two positioning inclined tops 1135, each positioning inclined top 1135 is located at the side of the insert placing portion 1141, and a third positioning portion 11351 is provided at the side end of each positioning inclined top 1135.

In a preferred embodiment of the present invention, the third positioning portion 11351 is adapted to the first insert positioning portion 142, the first insert positioning portion 142 is disposed in the positioning slot 1143, and the third positioning portion 11351 and the positioning slot 1143 together fix the insert 14, so as to prevent the insert from moving randomly.

The number of equipment and the scale of processing described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be readily apparent to those skilled in the art.

Although embodiments of the invention have been disclosed above, they are not limited to the use listed in the specification and embodiments. It can be applied to various fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. Therefore, the invention is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims

1. An injection mold for integrally molding a metal insert, comprising: upper die assembly (12)

A lower die assembly (11) corresponding to the upper die assembly (12);

wherein the upper die assembly (12) comprises: an upper mold frame (122) with an upper mold core (124) inside; the lower die assembly (11) comprises: a lower die frame (112) with a lower die core (114) arranged therein, wherein the lower die core (114) is matched with the upper die core (124);

at least two insert placement parts (1141) are arranged on the surface of the lower die core (114), and an insert (14) is arranged at each insert placement part (1141);

at least two first inserts (1242) are arranged in the upper die core (124), each first insert (1242) is positioned right above a corresponding insert placing part (1141),

when the upper die assembly (12) and the lower die assembly (11) are clamped along the Z-axis direction, a cavity is defined between the upper die core (124) and the lower die core (114), and each insert (14) is at least partially positioned in the cavity;

the lower die assembly (11) comprises: a push rod module (113) which is positioned under the lower die frame (112),

the ejector pin module (113) includes: the device comprises at least two ejector rod drivers (1131), wherein each ejector rod driver (1131) is arranged along the Z-axis direction, and the ejector rod drivers (1131) are fixedly arranged at the side ends of the lower die frame (112);

the first connecting plate (1132) is in transmission connection with the power output end of the ejector rod driver (1131);

a second connection plate (1133) fixedly mounted directly above the first connection plate (1132); and

a third connection plate (1134) fixedly mounted directly above the second connection plate (1133);

the surface of the third connecting plate (1134) is fixedly connected with push rods (1136), the number of the push rods (1136) is not less than two, and each push rod (1136) penetrates through the lower die core (114);

the ejector pin module (113) further includes: the two inclined top units (1137) are respectively positioned at two sides of the third connecting plate (1134) along the Y-axis direction, and the two inclined top units (1137) are fixedly connected with the first connecting plate (1132);

wherein the pitched roof unit (1137) includes: forming a pitched roof (11371); and

one end of each connecting strip (11372) is fixedly connected with the forming inclined top (11371), and the other end of each connecting strip (11372) is fixedly connected with the first connecting plate (1132);

the length of the forming inclined top (11371) is slightly smaller than that of the lower die core (114);

at least two second inserts (11373) are arranged in the forming inclined top (11371), and each second insert (11373) is regularly arrayed along the X-axis direction; at least two third inserts (115) are arranged in the lower die core (114); at least two fourth inserts (1243) are further arranged in the upper die core (124);

the insert (14) comprises: a grip (141);

a first insert positioning portion (142) integrally formed with the grip portion (141);

a second insert positioning portion (143) integrally formed with the grip portion (141); and

a third insert positioning portion (144) integrally formed with the second insert positioning portion (143);

a first positioning hole (1431) is formed in the top end of the second insert positioning part (143), and a third positioning hole (1441) is formed in the surface of the third insert positioning part (144);

the insert positioning module (13) is fixedly arranged at the side end of the lower die frame (112), and the insert positioning module (13) is used for positioning and fixing each insert (14);

wherein, insert positioning module (13) includes: a positioning driver (131) fixedly mounted on the surface of the lower mold frame (112) through a fixing plate (132);

the movable block (133) is in transmission connection with the power output end of the positioning driver (131); and

the positioning blocks (134), the number of the positioning blocks (134) is not less than two, and each positioning block (134) is in transmission connection with the movable block (133);

the positioning driver (131) drives the movable blocks (133) to reciprocate along the X-axis direction, and then drives each positioning block (134) to reciprocate along the Y-axis direction;

a first positioning part (1341) is arranged at the side end of each positioning block (134), and the first positioning part (1341) is matched with the first positioning hole (1431);

a second positioning part (1142) is arranged on the surface of each insert placing part (1141), and the second positioning part (1142) and the insert placing part (1141) are integrally formed and extend from the surface of the insert placing part (1141) along the Z-axis direction; the second positioning part (1142) is matched with the third positioning hole (1441);

at least two positioning grooves (1143) are formed in the surface of the lower die core (114), and each positioning groove (1143) is located at the side of a corresponding insert placing portion (1141) respectively.

2. The metal insert integrated injection mold of claim 1, wherein the interior of the molded beveled top (11371) is provided with cooling water (113711).

3. The metal insert integrated injection mold of claim 1, wherein a surface of each insert placement portion (1141) is provided with at least two first clamping portions (1144);

at least two second clamping parts (1241) are arranged on the surface of the upper die core (124);

each second clamping portion (1241) is coaxial with a corresponding one of the first clamping portions (1144) along the Z-axis direction.

4. The metal insert integrated injection mold of claim 1, wherein the ejector pin module (113) further comprises: at least two location pitched roof (1135), every location pitched roof (1135) are located the side of inserts portion (1141) of placing, and the side end of every location pitched roof (1135) is equipped with third location portion (11351).