Anti-flash structure for injection molding of double-color product
By setting a metal stop structure in two-color injection molding, the flash problem in two-color injection molding is solved, achieving faster molding speed and cost control, and avoiding additional processes and increased mold complexity.
Patent Information
- Application Number
- CN202520057635.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-10
AI Technical Summary
Existing two-color injection molding technology has problems with increased processes and costs, especially in the removal of flash, which requires additional equipment or increases the difficulty and cost of mold design.
Design a structure to prevent flash during injection molding of two-color products. A groove extending towards the parting surface is provided on the side of the second cavity away from the first cavity to form a metal block structure, thereby reducing the pressure time of the second color part on the first color part.
It effectively improves flash defects, increases molding speed, reduces production cycle, controls costs, and does not affect other parts of the product, thus possessing market value.
Smart Images
Figure CN223720021U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to injection molding technical field, concretely relates to a double -colored product injection molding anti -flash structure. BACKGROUND
[0002] Double -colored injection molding is one of the more popular advanced injection molding methods of current car lamp shade, so that car lamp can obtain more complex color collocation and appearance effect.
[0003] At present, the scheme that the industry existing solution double -colored injection molding flash mainly has following two kinds: the first kind of scheme is after completing injection molding, using equipment to remove flash, will increase a new process in the production process, not only increase the cost needed to purchase equipment, also lengthen production cycle simultaneously;The second kind of scheme is to increase mold pressurizing mechanism on the mold, and this way will lead to increase the difficulty of mold design and production, and also increase the cost. UTILITY MODEL CONTENT
[0004] The utility model discloses a double -colored product injection molding anti -flash structure that can reduce the extrusion degree of the first color product during the second color injection molding, solve the double -colored product injection molding anti -flash structure that the flash caused by extrusion affects the appearance and use of product.
[0005] To realize above -mentioned purpose, the technical scheme that the utility model adopts is: a double -colored product injection molding anti -flash structure, including the first cavity for forming the first color part and the second cavity for forming the second color part, the first cavity with second cavity between having parting surface, the second cavity away from the side of first cavity is equipped with the recess that extends to the direction of parting surface.
[0006] Preferably, the distance between the top of the recess and the parting surface is the same as the distance between the side edge of the recess and the edge of the second cavity.
[0007] Preferably, the distance between the top of the recess and the parting surface is 1mm.
[0008] Preferably, the distance between the side edge of the recess and the edge of the second cavity is 1mm.
[0009] Preferably, the recess forms a stop block structure extending in the direction of the parting surface, and the material of the stop block structure is a metal material.
[0010] After adopting the above technical scheme, the double -colored product injection molding anti -flash structure provided by the utility model has the following beneficial effects:
[0011] The utility model discloses a structure design has reduced the pressure and the pressure action time of first color part in the second color part injection moulding process, can effectively improve the flash defect, simultaneously, the utility model not only can help the first color part to bear the pressure in the second color part pressure maintaining process, also make the part that needs to be formed less, the edge place will freeze preferentially, compared with the structure in prior art has faster forming speed, and has not produced the influence to the other position of whole product, production cycle is effectively guaranteed, and cost is effectively controlled on. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a cross section schematic view of the utility model discloses a kind of two-color product injection moulding anti-flash structure.
[0013] Wherein: first cavity 1, second cavity 2, parting surface 3, groove 4. DETAILED DESCRIPTION
[0014] The utility model will be further clearly and completely described below in combination with the drawings and specific embodiments, obviously, the described embodiment is only a part of the embodiment of the utility model, not all embodiments. The description of the following at least one exemplary embodiment is actually only illustrative, and is by no means any limitation on the utility model and its application or use. Based on the embodiment in the utility model, all other embodiments obtained by ordinary skilled in the art without making creative labor belong to the scope of the utility model protection.
[0015] It should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.
[0016] The foregoing description, for purposes of explanation, sets forth specific values and arrangements of components and steps that are subject to many options. The intent is to be accurate in describing the principles and novel features of the application. Thus, although the application has been described with reference to specific embodiments thereof, it will be apparent to those of ordinary skill in the art that a number of changes can be made to the embodiments described without departing from the spirit and scope of the application. For example, the various features of the application can be combined in any combination, where possible. Accordingly, the scope of the application is to be construed as encompassing modifications and variations of the specific examples described herein, subject only to the conditions of the prior art.
[0017] In the description of the present application, it needs to be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship is usually based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.
[0018] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawings is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the example term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative description used herein is interpreted accordingly.
[0019] In addition, it needs to be explained that the use of "first", "second" and the like to limit parts only for the convenience of distinguishing the corresponding parts, and if there is no further declaration, the above words have no special meaning, therefore, it cannot be understood as a limitation on the scope of protection of the present application.
[0020] The utility model discloses a double -colored product injection molding prevents the structure of fly edge, like Figure 1 As shown, including the first cavity 1 for forming the first color part and the second cavity 2 for forming the second color part, the first cavity 1 with second cavity 2 has the parting surface 3 between, the second cavity 2 is provided with the recess 4 extending to the parting surface 3 direction away from the first cavity 1 side, the distance between the recess 4 top and parting surface 3, with the distance between the recess 4 one side and second cavity 2 edge, specifically, the distance between the recess 4 top and parting surface 3, with the distance between the recess 4 one side and second cavity 2 edge all are 1mm.
[0021] In other words, the recess 4 extending to the parting surface 3 direction, namely forms the blocking structure extending to the parting surface 3 direction, the material of the blocking structure is metal material, so design, this metal blocking structure not only can help the first color part bear the pressure in the pressure maintaining process of second color part, also makes the part that needs to be formed less, the edge will freeze preferentially, compared with the structure in the prior art has the advantages such as faster forming speed.
[0022] In summary, the utility model provides a double -colored product injection molding prevents the structure of fly edge, reduces the pressure and the action time of pressure to the first color part in the injection molding process of second color part, can effectively improve the fly edge defect, and simultaneously does not produce the influence to other positions of whole product, effectively guarantees production cycle, effectively controls on cost, has great market value, is worth widely popularizing and applying.
[0023] The above, only for the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the utility model discloses the technical range of the utility model, according to the technical scheme of the utility model and the utility model concept, equivalent replacement or change, all should be covered in the protection scope of the utility model.
Claims
1. A dual color product injection molded anti-bur structure, characterized in that: The mould comprises a first cavity (1) for forming a first color part and a second cavity (2) for forming a second color part, a parting surface (3) is arranged between the first cavity (1) and the second cavity (2), and a groove (4) extending to the parting surface (3) is arranged on the side of the second cavity (2) away from the first cavity (1).
2. A dual color product injection molded anti-bur structure as claimed in claim 1, wherein: The distance between the top of the groove (4) and the parting surface (3) is the same as the distance between the side edge of the groove (4) and the edge of the second cavity (2).
3. A dual color product injection molded anti-bur structure as claimed in claim 1, wherein: The distance between the top of the groove (4) and the parting surface (3) is 1mm.
4. A dual color product injection molded anti-bur structure as claimed in claim 1 wherein: The distance between the side edge of the groove (4) and the edge of the second cavity (2) is 1mm.
5. A dual color product injection molded anti-bur structure as claimed in claim 1 wherein: The groove (4) forms a stop structure extending to the parting surface (3), and the material of the stop structure is metal material.