Die structure for improving root fillet of material sealing rib
By adopting a combined structure of split sealing rib inserts and prosthetic polishing process inserts in the taillight mask mold, the problems of rounded corners and unclear polishing angles of sealing ribs are solved, and the product production pass rate and polishing quality are improved.
Patent Information
- Application Number
- CN202420670591.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-03
AI Technical Summary
The existing taillight mask mold structure has rounded corner problems and unclear polishing angles during the processing and polishing of sealing ribs, resulting in insufficient splicing and uneven polishing of products, affecting the product qualification rate.
The split sealing rib insert structure and prosthetic polishing process insert are adopted. By replacing the sealing rib insert as a prosthetic polishing insert after injection molding, the product surface is polished and the rounded corners are avoided.
It effectively solves the problems of rounded corners and unclear polishing angles in the sealing ribs, improves the adequacy of product splicing and polishing quality, and improves the production pass rate of products.
Smart Images
Figure CN222590512U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tail lamp mask production, in particular to a mold structure for improving the fillet of the root of a sealing rib. Background Art
[0002] At present, the automotive lighting industry is facing a very fierce market competition. Limited by the internal talent and technical barriers in the industry, the high cost investment in the manufacturing industry, and the serious waste, the product quality of the lamp appearance has always been a necessary factor affecting the product production qualification rate, and has also restricted the development of the industry. Therefore, improving the product qualification rate, meeting customer quality requirements and achieving cost reduction and efficiency improvement have always been the goals pursued by manufacturers.
[0003] As an important part of the car lights, the taillight mask generally adopts a two-color splicing structure, so the common method for producing the taillight mask is two-color injection molding. Among them, in order to separate the space and keep the splicing surface consistent, a mold structure with sealing ribs is often used during single-color injection molding. The most common mold uses a structure in which the sealing ribs and the mold core are integrated, but due to inadequate processing, there will be a process fillet at the root of the sealing ribs and the product surface during processing, resulting in insufficient filling of the product splicing area.
[0004] Of course, the mold can also use a sealing rib insert structure, but the insert needs to be removed during polishing. This method is easy to cause the edge of the single-color product surface to collapse, so there are obvious defects. If the insert is not removed for polishing, the root between the sealing rib and the product surface will have the problem of unclear polishing angles, that is, the product polishing surface is low in the middle and high on both sides, making the product surface uneven. When the single-color injection molding area is relatively small, when the two-color injection molding is performed, due to the uneven surface of the single-color product, a gap will be generated when the flat fixed mold surface of the second color is pressed against the uneven surface of the first color product. The flow of the two-color plastic will squeeze the first color's already molded product, causing its glue position to be pressurized and deformed, resulting in product defects. Utility Model Content
[0005] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a mold structure for improving the fillet of the root of the sealing rib, which adds a prosthetic polishing insert to be flush with the product surface, avoids the problem of fillet processing of the sealing rib, and also ensures the polishing flatness and uniformity of the product surface, thereby improving the production qualification rate of the product.
[0006] In order to solve the above technical problems, the technical solution of the utility model is:
[0007] A mold structure for improving the rounded corners of the root of a sealing rib, comprising a mold core body, a pair of sealing rib inserts with sealing ribs, and a pair of prosthetic polishing process inserts;
[0008] During injection molding, the pair of sealing rib inserts are used to be installed on both sides of the mold body so that the pair of sealing ribs are close to the two ends of the outer product surface of the mold body;
[0009] After one-shot injection molding, the pair of prosthetic polishing process inserts can replace a pair of sealing rib inserts and be used for product surface polishing.
[0010] Furthermore, one side of the pair of prosthetic polishing process inserts is provided with a process insert product surface, and the pair of process insert product surfaces can be flush with the outer product surface of the mold core body when the pair of prosthetic polishing process inserts are installed on both sides of the mold core body.
[0011] Furthermore, the process insert product surfaces of the pair of prosthetic polishing process inserts are planes formed by cutting.
[0012] Furthermore, the prosthesis polishing process insert and the sealing rib insert are both made of aluminum alloy.
[0013] By adopting the above technical solution, the utility model has the following beneficial effects:
[0014] 1. The utility model can normally perform two-color injection molding through the mold body and a pair of sealing rib inserts. Since the sealing rib inserts and the mold body are a separate installation structure, there is no problem of processing fillet of the sealing ribs, so that the product splicing area can be fully filled, thereby improving the production qualification rate of the product.
[0015] 2. The utility model adds a pair of prosthetic polishing process inserts. After one-color injection molding, the pair of sealing rib inserts can be removed and replaced with a pair of prosthetic polishing process inserts. The process insert product surface of the prosthetic polishing process insert can be flush with the product surface of the mold body, which is equivalent to pretending to increase the area of the product surface, and thus it is not easy to collapse the edge of the one-color product surface during polishing, thereby ensuring the efficiency and quality of polishing; and because the product surface of the mold body is flush with the product surfaces of the process inserts on both sides, there is no problem of unclear corners in polishing, thereby ensuring the adequacy and quality of polishing, making the product surface smoother, ensuring the smooth progress of two-color injection molding, and improving the product yield. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of the utility model when installing the sealing rib insert;
[0017] Figure 2 It is a structural schematic diagram of the utility model when installing the prosthesis polishing process insert;
[0018] Among them, 1. Mold body; 2. Sealing rib insert; 20. Sealing rib; 3. Prosthesis polishing process insert. DETAILED DESCRIPTION
[0019] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.
[0020] In the prior art, when the taillight mask is produced by two-color injection molding, the mold often uses a structure in which the sealing rib and the mold core are integrated. However, due to inadequate processing, the root of the sealing rib and the product surface is clamped during processing, that is, Figure 1 There will be process fillets at positions a and b in the middle, which will cause the product joint area to be incompletely filled. If the mold uses a sealing rib insert structure, the insert needs to be removed during polishing. This method is likely to cause the edge of the product surface to collapse, so there are obvious defects. If the insert is not removed for polishing, the root of the sealing rib and the product surface, that is, Figure 1 The polishing at the a and b positions will cause unclear corners, resulting in the product's polished surface being low in the middle and high on both sides, making the product surface uneven. During two-color injection molding, due to the uneven surface of the first-color product, a gap will be generated when the flat fixed mold surface of the second color is pressed against the uneven product surface of the first color. The flow of the two-color plastic will squeeze the first-color molded product, causing its glue position to be pressurized and deformed, resulting in product defects.
[0021] Therefore, reference Figure 1 , 2 As shown, in this embodiment, a mold structure for improving the root radius of the sealing rib is provided, which is mainly composed of a mold body 1, a pair of sealing rib inserts 2 with sealing ribs 20, and a pair of prosthesis polishing process inserts 3, and the prosthesis polishing process inserts 3 and the sealing rib inserts 2 are both made of aluminum alloy.
[0022] like Figure 1 As shown, during injection molding, a pair of sealing rib inserts 2 can be installed on both sides of the mold core body 1 and the pair of sealing ribs 20 are close to the two ends of the outer product surface A of the mold core body 1, so as to separate the space and keep the splicing surface consistent. Since the sealing rib insert 2 and the mold core body 1 are a separate installation structure, there is no problem of processing the fillet of the sealing rib 20, so that the product splicing area can be fully filled, and the production qualification rate of the product is improved.
[0023] like Figure 2As shown, after one-color injection molding, a pair of sealing rib inserts 2 can be removed, and a pair of prosthetic polishing process inserts 3 can be installed on both sides of the mold body 1 to replace the pair of sealing rib inserts 2. One side of the two prosthetic polishing process inserts 3 is respectively formed with a process insert product surface B and a process insert product surface C. The process insert product surface B and the process insert product surface C are both planes formed by cutting. The process insert product surface B and the process insert product surface C can be flush with the outer product surface A of the mold body 1 and used for polishing the product surface A, ensuring the polishing flatness and uniformity of the product surface A. After polishing is completed, a pair of sealing rib inserts 2 can be replaced to continue two-color injection molding. When a pair of prosthetic polishing process inserts 3 are installed for the first time, the prosthetic polishing process inserts 3 can be cut by a machine tool to process the process insert product surface B and the process insert product surface C to ensure that they are flush with the product surface A of the mold body 1, and can be directly installed and used when the same product is installed and produced later.
[0024] In this embodiment, a pair of prosthetic polishing process inserts 3 are added. After the one-color injection molding, the pair of sealing rib inserts 2 can be removed and replaced with a pair of prosthetic polishing process inserts 3. The process insert product surface of the prosthetic polishing process insert 3 can be flush with the product surface A of the mold body 1, which is equivalent to pretending to increase the area of the product surface A, and thus it is not easy to collapse the edge of the one-color product surface during polishing, thereby ensuring the efficiency and quality of polishing; and because the product surface A of the mold body 1 is flush with the process insert product surfaces B and C on both sides, there is no problem of unclear corners in polishing, thereby ensuring the adequacy and quality of polishing, making the product surface smoother, ensuring the smooth progress of the two-color injection molding, and improving the product yield.
[0025] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0026] The above specific embodiments further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A mold structure for improving the fillet of the root of the sealing rib, characterized in that: It comprises a mold body (1), a pair of sealing rib inserts (2) with sealing ribs (20), and a pair of prosthesis polishing process inserts (3); During injection molding, the pair of sealing rib inserts (2) are used to be installed on both sides of the mold core body (1) so that the pair of sealing ribs (20) are close to both ends of the outer product surface of the mold core body (1); After single-shot injection molding, the pair of prosthetic polishing process inserts (3) can replace the pair of sealing rib inserts (2) and be used for product surface polishing.
2. A mold structure for improving the root radius of the sealing rib according to claim 1, characterized in that: One side of the pair of prosthetic polishing process inserts (3) is provided with a process insert product surface, and the pair of process insert product surfaces can be flush with the outer product surface of the mold core body (1) when the pair of prosthetic polishing process inserts (3) are installed on both sides of the mold core body (1).
3. A mold structure for improving the root radius of the sealing rib according to claim 1, characterized in that: The process insert product surfaces of the pair of prosthesis polishing process inserts (3) are planes formed by cutting.
4. A mold structure for improving the root radius of the sealing rib according to claim 1, characterized in that: The prosthesis polishing process insert (3) and the sealing rib insert (2) are both made of aluminum alloy.