CN115674568A - Manufacturing method for implanting double-color injection molding product in back mold - Google Patents
Manufacturing method for implanting double-color injection molding product in back mold Download PDFInfo
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- CN115674568A CN115674568A CN202211342287.7A CN202211342287A CN115674568A CN 115674568 A CN115674568 A CN 115674568A CN 202211342287 A CN202211342287 A CN 202211342287A CN 115674568 A CN115674568 A CN 115674568A
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Abstract
The invention discloses a manufacturing method for in-mold back mold implantation of a double-color injection molding product, and belongs to the technical field of double-color injection molding of plastic products. The manufacturing method forms an injection molding semi-finished product after the mold assembly is carried out for the injection molding of the first side, inserts are placed in the embedding grooves of the injection molding semi-finished product, and then the injection molding of the second side is carried out; and after the second side injection molding is finished, obtaining a double-color injection molding product implanted in the mold after the mold separation. The manufacturing method is realized through back mold implantation and continuous two-time injection molding, the embedded object is accurately implanted through the embedded object placing manipulator after the first injection molding, so that the implanted embedded object is combined with a product after the first injection molding, and then the second injection molding is carried out, the production efficiency can be improved, and the accuracy is more accurate and faster than that of manual implantation; the injection molding cycle is short, the product has low deformation, the insert is not exposed, the two materials are seamlessly combined, and the product function and performance are perfect.
Description
Technical Field
The invention belongs to the technical field of double-color injection molding of plastic products, and particularly relates to a manufacturing method for implanting a double-color injection molding product in a mold through a rear mold.
Background
The plastic manufacturing process and technology are continuously developed and refined, and the double-color injection molding can realize the combination of different materials and the application of the same material with different colors, so that the plastic has unique practical advantages. Along with AI intellectualization, the electronic technology is more and more popularized, and electronic identification inserts and the like are embedded into double-color products in consideration of a plurality of plastic electronic products, so that more application scenes are provided for the double-color injection products with the inserts. Traditional double-colored moulding plastics before still stays in the colour and switches, and on the technique such as the integration of different materials mutually, traditional embedding or embedding mode are: the first material product is injected for the first time, after being taken out, the object to be embedded or embedded is placed on the first injection product, and then an apparatus is changed for injection molding to wrap the object, so that the injection molding product has the following defects: 1) The two materials have poor bonding force and are easy to separate from the middle, and the embedded or embedded object is easy to separate from the middle and is similar to a sandwich structure; 2) The injection molding period is long, and the injection molding process is to take out the product after the first product is manufactured and then put the product on a mold of another machine device; 3) The product causes the deformation very easily, because the product shaping of first time back takes out again, because the cooling is stereotyped, when carrying out secondary cavity implantation again or burying, produces great temperature difference to it is great to lead to the product shrinkage deflection after moulding plastics. With the development of science and technology and the increasing demand of the double-color injection molding product with an insert, some innovations on the common double-color injection molding process are urgently needed to meet the increasingly innovative demands of customers. The present invention has been made in response to this need.
Disclosure of Invention
The embodiment of the invention provides a manufacturing method for in-mold back mold implantation of a double-color injection molding product, aiming at solving the defects that the bonding force is poor, the injection molding period is long and the product is easy to deform when the existing double-color implantation injection molding is taken out after single-color embedding or embedded injection molding is adopted, and solving the defects of the bonding force, the injection molding period and the easy denaturation through the back mold implantation.
The embodiment of the invention is realized in such a way that a manufacturing method for implanting an in-mold back mold into a double-color injection molding product realizes double-color injection molding and implanting an embedded object into the in-mold back mold, and comprises the following steps: the double-color injection molding product is molded by a mold device implanted with a back mold in the mold; the mould equipment for implanting the in-mould rear mould comprises a first front mould, a second front mould, a first rear mould, a second rear mould, an injection molding mechanism, a rear mould rotating mechanism and an embedded object placing manipulator, wherein an embedded object positioning groove and an embedded object imitating bulge are arranged in the first front mould, and the injection molding mechanism is respectively connected with the first front mould and the second front mould; the rear die rotating mechanism is connected with the first rear die and the second rear die to realize die closing, die splitting and rotating actions of the rear die and the front die;
1) The injection molding method comprises the following steps of realizing the die assembly of a first rear die and a first front die and the die assembly of a second rear die and a second front die under the driving of a rear die rotating mechanism, carrying out first-side injection molding on the die assembly of the two parts by an injection molding mechanism to form an injection molding semi-finished product, driving the first rear die and the second rear die to be respectively separated by the rear die rotating mechanism, and forming an embedding groove for containing an embedded object on the injection molding semi-finished product under the action of an embedded object positioning groove and an embedded object protrusion;
2) The embedded object placing mechanical arm places the embedded object in the embedded groove; obtaining an injection molding semi-finished product with the insert;
3) The rear die rotating mechanism drives the rear die to rotate, the first rear die corresponds to the second front die, the second rear die corresponds to the first front die, the first front die and the second rear die are matched, the second front die and the first rear die are matched under the driving of the rear die rotating mechanism, and the injection molding mechanism performs second-side injection molding on the matched dies of the two parts;
4) And after the second side injection molding is finished, obtaining a double-color injection molding product implanted in the mold after the mold separation.
In a preferred embodiment, the injection mechanism includes a first injection mechanism, the first injection mechanism is connected to the first front mold, and the second injection mechanism is connected to the second front mold.
In a preferred embodiment, the two-color injection molded product embedded in the mold is preferably a plastic license plate or the like including a built-in sensing device.
As a preferred embodiment, the first front mold and the second front mold are respectively provided with two injection molding grooves of a two-color injection molding product; be provided with connecting groove between two grooves of moulding plastics on the second front mould, two grooves of moulding plastics and connecting groove set up and can realize moulding plastics in proper order and prepare double-colored injection moulding product, very big increase double-colored injection moulding product's production efficiency.
As a preferred embodiment, the insert positioning groove is disposed in the injection molding groove of the first front mold, the insert positioning groove is internally provided with the dummy insert protrusion, and the insert positioning groove and the dummy insert protrusion can form an insert groove on the first-side injection molding semi-finished product for subsequently placing an insert when the first-side injection molding is performed; through the mode of putting into the inserts of back mould implantation, can be more accurate to the location of inserts to implantation technology is also simpler.
In a preferred embodiment, four corners of the first front mold and the second front mold are respectively provided with a convex buckle, and four corners of the first rear mold and the second rear mold are respectively provided with a concave buckle; the convex buckle and the concave buckle realize mutually matched buckles when the die is closed.
In the process of injecting the first side injection molding semi-finished product obtained by the first side injection molding preparation, an embedding groove is formed on the first side injection molding semi-finished product under the action of an embedding object positioning groove and an imitated embedding object protrusion on a first front mold, an embedding object to be implanted is placed into the embedding groove of the first side injection molding semi-finished product, the embedding object is guaranteed not to fall off and is precisely limited through limiting of the embedding groove, then second side injection molding is carried out, and after the injection molding is finished, the embedded embedding object is completely wrapped between two kinds of plastic, so that the effect actually achieved by the product is achieved.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
1. the manufacturing method is realized by post-mold implantation and continuous two-time injection molding, and the embedded object is accurately implanted by the embedded object placing manipulator after the first injection molding, so that the implanted embedded object is combined with a product after the first injection molding, and then the second injection molding is carried out. Can improve the production efficiency, and the precision is more accurate than artifical implantation, and is faster.
2. The invention breaks through the problem of binding force after secondary injection molding after double-color or single-color embedded injection molding in the traditional technology by the manufacturing method of plastic double-color and back mold in-mold implantation, has short cycle of injection molding and low product deformation, really realizes that an embedded object is not exposed, and the two materials are seamlessly combined, thereby realizing the perfect appearance and the perfect function and performance of the product.
Drawings
FIG. 1 is a schematic structural view of a mold for in-mold back mold implantation of the present invention;
FIG. 2 is an exploded view of the mold of the present invention with the mold in-mold back implanted;
fig. 3 is an enlarged structural view of a structural portion a in fig. 2.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that if directional indications (such as upper, lower, left, right, front, back, top, bottom, 8230; etc.) are involved in the embodiments of the present invention, the directional indications are only used for explaining the relative positional relationship, movement, etc. of the components in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are correspondingly changed.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
At present, the following defects exist in the technical field of double-color implantation injection molding: the existing double-color implantation injection molding adopts the defects of poor bonding force, long injection molding period and easy deformation of products in secondary injection molding after single-color embedding or embedding injection molding. In order to solve the technical problem, the invention provides a manufacturing method for automatically implanting in a double-color injection molding product mould.
Example one
As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a method for manufacturing an in-mold back mold insert of a two-color injection molded product, which implements the two-color injection molding and the in-mold back mold insert, and includes the following steps: the double-color injection molding product is molded by a mold device implanted with a back mold in the mold; the mould equipment for implanting the in-mould rear mould comprises a first front mould 1, a second front mould 2, a first rear mould 3, a second rear mould 4, an injection moulding mechanism, a rear mould rotating mechanism and an embedded object placing manipulator, wherein an embedded object positioning groove 11 and an embedded object imitating bulge 12 are arranged in the first front mould 1, and the injection moulding mechanism is respectively connected with the first front mould 1 and the second front mould 2; the rear die rotating mechanism is connected with the first rear die 3 and the second rear die 4, so that the die closing, die splitting and rotating actions of the rear die and the front die are realized;
1) The injection molding method comprises the following steps of realizing the die assembly of a first rear die 3 and a first front die 1 and the die assembly of a second rear die 4 and a second front die 2 under the driving of a rear die rotating mechanism, carrying out first-side injection molding on the die assembly of the two parts by an injection molding mechanism to form an injection molding semi-finished product, driving the first rear die 3 and the second rear die 4 to respectively separate the dies by the rear die rotating mechanism, and forming an embedding groove for accommodating an embedded object on the injection molding semi-finished product under the action of an embedded object positioning groove 11 and an imitated embedded object bulge 12 on the first front die 1;
2) The embedded object placing mechanical arm places the embedded object in the embedded groove; obtaining an injection molding semi-finished product with the insert;
3) The rear die rotating mechanism drives the rear die to rotate, the first rear die 3 corresponds to the second front die 2, meanwhile, the second rear die 4 corresponds to the first front die 1, the first front die 1 and the second rear die 4 are matched, the second front die 2 and the first rear die 3 are matched under the driving of the rear die rotating mechanism, and the injection molding mechanism carries out second-side injection molding on the matched dies of the two parts;
4) And after the second side injection molding is finished, obtaining a double-color injection molding product implanted in the mold after the mold separation.
In a preferred embodiment, the injection mechanism includes a first injection mechanism, the first injection mechanism is connected to the first front mold, and the second injection mechanism is connected to the second front mold.
In a preferred embodiment, the two-color injection molded product embedded in the mold is preferably a plastic license plate or the like including a built-in sensing device.
As a preferred embodiment, the first front mold 1 and the second front mold 2 are respectively provided with two injection grooves 13 for two-color injection molding products; a connecting groove 14 is formed between the two injection molding grooves 13 on the second front mold, the two injection molding grooves 13 and the connecting groove 14 are arranged to realize sequential injection molding preparation to obtain double-shot injection molding products, and the production efficiency of the double-shot injection molding products is greatly increased.
As shown in fig. 3, as a preferred embodiment, the insert positioning groove 11 is disposed in the injection molding groove 13 of the first front mold 1, the dummy insert protrusion 12 is disposed in the insert positioning groove 11, and the insert positioning groove 11 and the dummy insert protrusion 12 can form an insert groove on a first-side injection molding semi-finished product for subsequently placing an insert when the first-side injection molding is performed; through the mode of putting into the inserts of back mould implantation, can be more accurate to the location of inserts to implantation technology is also simpler.
In a preferred embodiment, the four corners of the first front mold 1 and the second front mold 2 are respectively provided with a convex buckle 15, and the four corners of the first rear mold 3 and the second rear mold 4 are respectively provided with a concave buckle 16; the convex buckle 15 and the concave buckle 16 realize mutually matched buckling when the mold is closed.
In the process of injecting a first side injection molding semi-finished product obtained by first side injection molding preparation, an embedding groove is formed on the first side injection molding semi-finished product under the action of an insert positioning groove 15 and an insert simulating protrusion 16 on a first front mold, an insert to be implanted is placed into the embedding groove of the first side injection molding semi-finished product, the embedded object is guaranteed not to fall off and is precisely limited through limiting of the embedding groove, then second side injection molding is carried out, and after the injection molding is finished, the embedded insert is completely wrapped between two types of plastic, so that the effect actually achieved by the product is achieved.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
1. the manufacturing method is realized by post-mold implantation and continuous two-time injection molding, and the embedded object is accurately implanted by the embedded object placing manipulator after the first injection molding, so that the implanted embedded object is combined with a product after the first injection molding, and then the second injection molding is carried out. Can improve the production efficiency, and the precision is more accurate and quicker than the manual implantation.
2. The invention breaks through the problem of binding force after secondary injection molding after double-color or single-color embedded injection molding in the traditional technology by the manufacturing method of plastic double-color and back mold in-mold implantation, has short cycle of injection molding and low product deformation, really realizes that an embedded object is not exposed, and the two materials are seamlessly combined, thereby realizing the perfect appearance and the perfect function and performance of the product.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A manufacturing method for implanting a double-shot injection molding product into a mold and a rear mold in the mold is used for realizing double-shot injection molding and implanting an embedded object into the mold and the rear mold in the mold, and is characterized in that: the method comprises the following steps: the double-color injection molding product is molded by a mold device implanted with a back mold in the mold; the mould equipment for implanting the in-mould rear mould comprises a first front mould, a second front mould, a first rear mould, a second rear mould, an injection molding mechanism, a rear mould rotating mechanism and an embedded object placing manipulator, wherein an embedded object positioning groove and an embedded object imitating bulge are arranged in the first front mould, and the injection molding mechanism is respectively connected with the first front mould and the second front mould; the rear die rotating mechanism is connected with the first rear die and the second rear die to realize die closing, die splitting and rotating actions of the rear die and the front die;
1) The injection molding method comprises the following steps of realizing the die assembly of a first rear die and a first front die and the die assembly of a second rear die and a second front die under the driving of a rear die rotating mechanism, carrying out first-side injection molding on the die assembly of the two parts by an injection molding mechanism to form an injection molding semi-finished product, driving the first rear die and the second rear die to be respectively separated by the rear die rotating mechanism, and forming an embedding groove for containing an embedded object on the injection molding semi-finished product under the action of an embedded object positioning groove and an embedded object protrusion;
2) The embedded object placing mechanical arm places the embedded object in the embedded groove; obtaining an injection molding semi-finished product with the insert;
3) The rear die rotating mechanism drives the rear die to rotate, the first rear die corresponds to the second front die, the second rear die corresponds to the first front die, the first front die and the second rear die are matched, the second front die and the first rear die are matched under the driving of the rear die rotating mechanism, and the injection molding mechanism performs second-side injection molding on the matched dies of the two parts;
4) And after the second side injection molding is finished, obtaining a double-color injection molding product implanted in the mold after the mold separation.
2. The method for manufacturing a two-color injection molded product by post mold injection in a mold according to claim 1, wherein: the injection molding mechanism comprises a first injection molding mechanism, the first injection molding mechanism is connected with the first front mold, and the second injection molding mechanism is connected with the second front mold.
3. The method for manufacturing a two-color injection molded product by post mold injection in a mold according to claim 1, wherein: the double-color injection molding product implanted in the mold is a plastic license plate comprising a built-in sensing device.
4. The method for manufacturing a two-color injection molded product by post mold injection in a mold according to claim 1, wherein: the first front die and the second front die are respectively provided with two injection molding grooves of a double-color injection molding product; and a connecting groove is arranged between the two injection molding grooves on the second front mold.
5. The method for manufacturing a two-color injection molded product by in-mold back mold injection according to claim 4, wherein: the insert positioning groove is formed in the injection molding groove of the first front mold, and the imitated insert protrusion is arranged in the insert positioning groove.
6. The method for manufacturing a two-color injection molded product by in-mold back mold injection according to claim 1, wherein: convex buckles are arranged at four corners of the first front die and the second front die respectively, and concave buckles are arranged at four corners of the first rear die and the second rear die respectively; the convex buckle and the concave buckle realize mutually matched buckles when the die is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211342287.7A CN115674568A (en) | 2022-10-31 | 2022-10-31 | Manufacturing method for implanting double-color injection molding product in back mold |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211342287.7A CN115674568A (en) | 2022-10-31 | 2022-10-31 | Manufacturing method for implanting double-color injection molding product in back mold |
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| Publication Number | Publication Date |
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| CN115674568A true CN115674568A (en) | 2023-02-03 |
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| CN202211342287.7A Pending CN115674568A (en) | 2022-10-31 | 2022-10-31 | Manufacturing method for implanting double-color injection molding product in back mold |
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| CN (1) | CN115674568A (en) |
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- 2022-10-31 CN CN202211342287.7A patent/CN115674568A/en active Pending
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