CN220113893U - Mould structure for optimizing injection product welding line - Google Patents
Mould structure for optimizing injection product welding line Download PDFInfo
- Publication number
- CN220113893U CN220113893U CN202321424390.6U CN202321424390U CN220113893U CN 220113893 U CN220113893 U CN 220113893U CN 202321424390 U CN202321424390 U CN 202321424390U CN 220113893 U CN220113893 U CN 220113893U
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- Prior art keywords
- concave
- product
- welding line
- melt
- optimizing
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- 238000003466 welding Methods 0.000 title claims abstract description 37
- 238000002347 injection Methods 0.000 title claims abstract description 20
- 239000007924 injection Substances 0.000 title claims abstract description 20
- 239000000155 melt Substances 0.000 claims abstract description 29
- 239000003292 glue Substances 0.000 claims abstract description 24
- 239000000853 adhesive Substances 0.000 claims abstract description 22
- 230000001070 adhesive effect Effects 0.000 claims abstract description 22
- 238000001746 injection moulding Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims abstract description 8
- 230000000903 blocking effect Effects 0.000 claims description 12
- 230000004927 fusion Effects 0.000 abstract description 11
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model provides a die structure for optimizing a welding line of an injection molding product, which comprises the following components: a mold body in which a molding cavity for molding an injection molded product is formed; the concave strips are arranged on the cavity surface of the forming cavity and are opposite to the welding line position of the product; the concave strips are distributed at intervals along the length direction of the welding line, and are intersected with the welding line under the forward projection view angle; in the process of injecting glue, the melt glue flows from the left side and the right side of the concave strip to the middle direction. In the glue injection process, the melt glue transversely flows in a plurality of concave strips, the melt glue flows from the left side and the right side of the concave strips to the middle direction, and two melt glue strips are opposite to each other to destroy the fusion angle; meanwhile, the flow of the melt adhesive at the concave strips is longitudinally jumped, the concave strips can slow down the forward flow of the melt adhesive, the fusion time of two melt adhesives is prolonged, the two melt adhesives are fully fused, and the fusion line of the product is effectively reduced.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to a mold structure for optimizing a welding line of an injection product.
Background
The injection mold is a tool for producing plastic products; is also a tool for endowing plastic products with complete structure and precise dimensions. Injection molding is a process used in mass production of parts of complex shape. Specifically, the heated and melted plastic is injected into a die cavity under high pressure by an injection molding machine, and a formed product is obtained after cooling and solidification.
The existing injection mold has some defects in the using process, and a plurality of welding lines often appear in the injection molding process at present, namely the upper mold and the lower mold need to be fed respectively in the feeding process of the injection mold, so that the welding lines are generated in the upper mold and the lower mold.
Disclosure of Invention
The utility model mainly aims to provide a die structure for optimizing a welding line of an injection molding product, and aims to effectively optimize the welding line of the product.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a die structure for optimizing a welding line of an injection molding product, which comprises the following components:
a mold body in which a molding cavity for molding an injection molded product is formed;
the concave strips are arranged on the cavity surface of the forming cavity and are opposite to the welding line position of the product;
the concave strips are distributed at intervals along the length direction of the welding line, and are intersected with the welding line under the forward projection view angle;
in the process of injecting glue, the melt glue flows from the left side and the right side of the concave strip to the middle direction.
Compared with the prior art, the concave strips are arranged at the cavity surface of the die forming cavity, so that the concave strips are intersected with the welding line under the orthographic projection view angle. In the glue injection process, the melt glue transversely flows in a plurality of concave strips, the melt glue flows from the left side and the right side of the concave strips to the middle direction, and two melt glue strands are opposite to each other to destroy the fusion angle; meanwhile, the flow of the melt adhesive at the concave strips is longitudinally jumped, the concave strips can slow down the forward flow of the melt adhesive, the fusion time of two melt adhesives is prolonged, the two melt adhesives are fully fused, and the fusion line of the product is effectively reduced.
In a preferred embodiment, the concave strip has a middle; the welding line is positioned in the middle range of the concave strips.
In a preferred embodiment, the opposite sides of the strip along the length are vertical when the weld line is at the level of the product.
In a preferred embodiment, when the weld line is located on the incline of the product, the side of the concave strip along the length is a guiding incline and a flow blocking surface connected with the guiding incline.
In a preferred embodiment, the outer edges of the concave strips are provided with rounded corners.
In a preferred embodiment, the strip is removed in the same direction as the product.
In a preferred embodiment, d=d 2 *3/2；L＝L 1 *10, h=d (1/3); wherein D is the wall thickness of the product, D is the width of the concave strip, L is the length of the concave strip, L 1 The width of the product welding line is not improved, and H is the depth of the concave strip.
For a better understanding and implementation, the following drawings illustrate the utility model in detail.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
FIG. 1 is a schematic view of the structure of a die body of the present utility model;
FIG. 2 is an enlarged view of A in FIG. 1;
FIG. 3 is a schematic view of the flow of the melt adhesive of the present utility model over a mold body;
FIG. 4 is a schematic view of the longitudinal flow of the melt adhesive of the present utility model over a mold body.
Reference numerals illustrate:
the die comprises a die body 1, a concave strip 2, a round angle 21, a guiding inclined plane 22, a flow blocking surface 23, a welding line position 3 and a flow blocking piece 4.
Detailed Description
In order to better illustrate the present utility model, the present utility model will be described in further detail below with reference to the accompanying drawings.
It should be understood that the described embodiments are merely some, but not all embodiments of the present utility model. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the utility model, are intended to be within the scope of the embodiments of the present utility model.
The terminology used in the embodiments of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of embodiments of the utility model. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the utility model. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the utility model as detailed in the accompanying claims. In the description of the present utility model, it should be understood that the terms "first," "second," "third," and the like are used merely to distinguish between similar objects and are not necessarily used to describe a particular order or sequence, nor should they be construed to indicate or imply relative importance. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present utility model, it should be understood that the terms "vertical," "transverse," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the protection of the present utility model.
Referring to fig. 1 to 4, the present utility model provides a mold structure for optimizing a weld line of an injection molding product, comprising:
a mold body 1, wherein a molding cavity for molding an injection molding product is formed in the mold body 1;
a plurality of concave strips 2 which are arranged on the cavity surface of the forming cavity and are opposite to the welding line position of the product;
the concave strips 2 are distributed at intervals along the length direction of the welding line, and the concave strips 2 are intersected with the welding line under the orthographic projection view angle;
in the process of injecting the glue, the melt glue flows from the left side and the right side of the concave strip 2 to the middle direction.
Compared with the prior art, the utility model has the advantages that the concave strips 2 are arranged at the cavity surface of the die forming cavity, so that the concave strips 2 are intersected with the welding line under the orthographic projection view angle. In the glue injection process, the melt glue transversely flows in the concave strips 2, the melt glue flows from the left side and the right side of the concave strips 2 to the middle direction, and two melt glue strips are opposite to each other to destroy the fusion angle; meanwhile, longitudinal jumping of the melt adhesive occurs at the positions of the concave strips 2, the concave strips 2 can slow down the forward flow of the melt adhesive, the fusion time of two melt adhesives is prolonged, the two melt adhesives are fully fused, and the fusion line of products is effectively reduced.
In one embodiment, the middle positions of the concave strips 2 are close to the welding line, so that the impact force of the molten adhesive flowing towards the middle on the left side and the right side of the concave strips 2 is approximately the same, the fusion angle of the two molten adhesives is destroyed, and the full fusion of the left molten adhesive and the right molten adhesive is facilitated.
Further, a flow blocking piece 4 is provided on the front side of the outermost concave strip 2, the flow blocking piece 4 facing the terminal area of the concave strip 2. During glue injection, the melt glue flows to the flow blocking piece 4 and then flows to the concave strips 2; under the action of the choked flow piece 4, the melt flows to the left side and the right side of the choked flow piece 4, so that the melt flows to the left side and the right side of the concave strips 2, and the melt flows from the left side and the right side of the concave strips 2 to the middle of the concave strips 2.
Further, when the welding line is located at the horizontal plane of the product, the opposite sides of the concave strip 2 along the length are vertical planes.
Further, as shown in fig. 3, when the welding line is located on the inclined plane of the product, the side surface of the concave strip 2 along the length is a guiding inclined plane 22 and a flow blocking surface 23 connected with the guiding inclined plane 22, so that the melt flows into the concave strip 2 from the guiding inclined plane 22, the melt flow is quickened, the flow blocking surface 23 blocks the melt in the concave strip 2, the residence time of the melt in the concave strip 2 is prolonged, so that enough melt is provided in the concave strip 2 located on the inclined plane, the opposite flushing of the melt on the left side and the right side of the concave strip 2 is facilitated, the formation of a welding included angle is disturbed, and the generation condition of the welding line is effectively eliminated or reduced.
In one embodiment, the outer edge of the concave strip 2 is provided with a round corner 21, the molten adhesive flows into the concave strip 2 through the round corner 21, the round corner 21 plays a guiding role, and the molten adhesive flows through the side surface of the concave strip 2 and the inside of the concave strip 2 under the guiding role of the round corner 21, so that the molten adhesive flows into the concave strip 2 more quickly.
In one embodiment, the demolding direction of the concave strip 2 is the same as the demolding direction of the product, so as to facilitate demolding of the injection molding piece on one hand, and avoid scratching of the product caused by the fact that the demolding directions of the concave strip 2 and the product are different on the other hand.
In one embodiment, D is the product wall thickness, D is the width of the concave strip 2, L is the length of the concave strip 2, L 1 For the width of the product weld line when not improved, H is the depth of the concave strip 2, and when d=d, by moldflow analysis and actual test 2 *3/2；L＝L 1 * When 10, H=d (1/3), the welding line of the product can be eliminated or the welding line of the product is not obvious, and the optimization effect is good.
The present utility model is not limited to the above-described embodiments, but, if various modifications or variations of the present utility model are not departing from the spirit and scope of the present utility model, the present utility model is intended to include such modifications and variations as fall within the scope of the claims and the equivalents thereof.
Claims (8)
1. A mold structure for optimizing a weld line of an injection molded product, comprising:
a mold body in which a molding cavity for molding an injection molded product is formed;
the concave strips are arranged on the cavity surface of the forming cavity and are opposite to the welding line position of the product;
the concave strips are distributed at intervals along the length direction of the welding line, and are intersected with the welding line under the forward projection view angle;
in the process of injecting glue, the melt glue flows from the left side and the right side of the concave strip to the middle direction.
2. The mold structure for optimizing a weld line of an injection molded product according to claim 1, wherein:
the middle positions of the concave strips are close to the welding line.
3. The mold structure for optimizing a weld line of an injection molded product according to claim 2, wherein:
the front side of the outermost concave strip is provided with a flow blocking piece, and the flow blocking piece faces to the terminal area of the concave strip; when injecting glue, the melt glue flows to the flow blocking piece and then flows to the concave strips; under the choked flow action of the choked flow piece, the melt adhesive flows to the left side and the right side of the choked flow piece.
4. A mold structure for optimizing an injection molding product melt line according to claim 3, wherein:
when the welding line is positioned on the horizontal plane of the product, two opposite side surfaces of the concave strip, which are arranged along the length, are vertical planes.
5. The mold structure for optimizing an injection molding product melt line according to claim 4, wherein:
when the welding line is positioned on the inclined plane of the product, the side surface of the concave strip, which is arranged along the length, is a guide inclined plane and a flow blocking surface connected with the guide inclined plane.
6. The mold structure for optimizing a weld line of an injection molded product according to claim 1, wherein:
the outer edge of the concave strip is provided with a round angle.
7. The mold structure for optimizing a weld line of an injection molded product according to claim 1, wherein:
the demolding direction of the concave strip is the same as the demolding direction of the product.
8. The mold structure for optimizing a weld line of an injection molded product according to claim 1, wherein,
D＝d 2 *3/2；L＝L 1 *10,H＝d*(1/3)；
wherein D is the wall thickness of the product, D is the width of the concave strip, L is the length of the concave strip, L 1 The width of the product welding line is not improved, and H is the depth of the concave strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321424390.6U CN220113893U (en) | 2023-06-06 | 2023-06-06 | Mould structure for optimizing injection product welding line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321424390.6U CN220113893U (en) | 2023-06-06 | 2023-06-06 | Mould structure for optimizing injection product welding line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220113893U true CN220113893U (en) | 2023-12-01 |
Family
ID=88894042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321424390.6U Active CN220113893U (en) | 2023-06-06 | 2023-06-06 | Mould structure for optimizing injection product welding line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220113893U (en) |
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2023
- 2023-06-06 CN CN202321424390.6U patent/CN220113893U/en active Active
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