Injection mold of mobile phone shell
By using a sliding structure with inclined guide pillars and sliding seat, and a detachable insert design, the problem of inaccurate insert alignment in traditional molds is solved, enabling efficient and high-quality mobile phone case molding and quick replacement, thus improving production efficiency and product qualification rate.
Patent Information
- Application Number
- CN202520541831.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Traditional injection molds suffer from insufficient precision in the alignment of inserts with the mold cavity due to their sliding structure design. This results in unstable product molding quality, low production efficiency, and inconvenient disassembly and maintenance of the inserts, affecting production continuity.
The slide structure adopts a sliding fit between the inclined guide post and the slide seat. The insert is designed with an extension arm, product contour part, limiting part and inclined part to ensure precise docking between the insert and the mold cavity. Combined with the detachable connection method, the insert can be quickly replaced.
It improved product molding quality and production efficiency, reduced molding defects, ensured dimensional accuracy, reduced maintenance costs, and guaranteed production continuity.
Smart Images
Figure CN223904448U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mould technical field, concretely is a kind of injection mould of mobile phone shell. BACKGROUND
[0002] In the field of injection mould, with the widespread popularity of electronic equipment such as mobile phone, the demand for injection products such as mobile phone shell is increasing, and higher requirements are put forward to its quality and production efficiency.
[0003] Traditional injection mould has some deficiencies in the design of row position structure. On the one hand, the butt joint accuracy of insert and mold cavity is difficult to guarantee, which leads to unstable product forming quality, and may cause size deviation, surface defect and other problems. On the other hand, the sliding guide and positioning function of row position seat are not perfect, which makes the insert prone to jamming, misplacement and other situations during butt joint or separation with the mold cavity, reduces the production efficiency and increases the maintenance cost of the mold. In addition, the structure design of insert of part of the mold is not conducive to disassembly and replacement. Once the insert is damaged or worn, it needs to spend more time and effort to repair, which affects the continuity of production.
[0004] To solve these problems, a new type of mobile phone shell injection mould emerges as the times require, which optimizes the row position structure, especially the unique insert design, which is expected to improve the quality and production efficiency of injection products and reduce production cost. CONTENT OF UTILITY MODEL
[0005] The utility model aims at providing a technical scheme that can solve the above problems.
[0006] An injection mould of mobile phone shell, comprising an upper die and a lower die, the upper die has an upper die core, the lower die has a lower die core, the upper die and the lower die are butted and matched to make the upper die core and the lower die core butt joint to form a mold cavity for forming products, and a row position structure is arranged between the upper die and the lower die.
[0007] The row position structure comprises an inclined guide column fixed on the upper die, a first guide rail fixed on the lower die, a second guide rail, and a row position seat slidably embedded between the first guide rail and the second guide rail, the inclined guide column is in sliding cooperation with the row position seat, and the row position seat is driven by the inclined guide column to slide towards the direction of butt joint or separation with the mold cavity.
[0008] The insert is detachably connected to the row seat, and at least one extension arm is arranged at the front end of the insert away from the row seat, a product profiling part is arranged at the front end of the extension arm, the product profiling part is used for interfacing with a mold cavity, a limiting part is arranged at the upper end of the product profiling part on the extension arm and is used for positioning when the product profiling part interfaces with the mold cavity, and an inclined surface part is arranged at the lower end of the product profiling part on the extension arm and is used for providing sliding guidance when the product profiling part interfaces with the mold cavity.
[0009] The product profiling part, the limiting part and the inclined surface part are connected on the extension arm.
[0010] As a further scheme of the utility model, the upper die core or the lower die core is provided with a limiting structure matched with the limiting part.
[0011] The limiting structure is a wall body of the upper die core or the lower die core, and the limiting part is abuttingly matched with the wall body.
[0012] Alternatively, the limiting structure is a limiting groove formed in the upper die core or the lower die core, and the limiting part is embeddedly matched with the limiting groove.
[0013] As a further scheme of the utility model, a first sliding groove matched with the insert is arranged along the parting surface of the lower die.
[0014] As a further scheme of the utility model, a second sliding groove matched with the extension arm is arranged in the first sliding groove in communication, and a guide inclined surface matched with the inclined surface part is arranged in the second sliding groove.
[0015] As a further scheme of the utility model, a connecting groove is formed in the matching end of the insert corresponding to the row seat, the rear end of the insert forms a connecting end embedded in the connecting groove, and the connecting end is further fixedly connected with the connecting groove through a locking piece.
[0016] As a further scheme of the utility model, the insert, the extension arm, the product profiling part, the limiting part and the inclined surface part are integrally formed.
[0017] Compared with the prior art, the utility model has the beneficial effects as follows:
[0018] 1) The product profile part is accurately matched with the specific part of the mobile phone shell, so that in the injection molding process, the complex shape and details of the mobile phone shell can be accurately formed, the positioning effect of the limiting part ensures the accurate relative position of the insert and the mold cavity when they are connected, and such accurate connection can effectively reduce the forming defects such as flash and shrinkage caused by uneven gap or misalignment, ensure the dimensional accuracy of the mobile phone shell, make the product meet the design specification requirements, improve the qualified rate of the product, and the sliding guide design of the inclined surface part of the insert enables the insert to smoothly move in the process of connecting or separating with the mold cavity, thereby ensuring the continuity of production and improving the overall production efficiency.
[0019] 2) The insert is detachably connected, so when the insert is worn or damaged during long-term use, it can be quickly detached from the row seat and replaced with a new insert without the need for large-scale maintenance or replacement of the entire mold.
[0020] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.
[0022] Figure 1 is a structural schematic diagram of the present application;
[0023] Figure 2 is a structural schematic diagram of the row structure cooperating with the upper die and the lower die in the present application;
[0024] Figure 3 is a sectional structural schematic diagram of the present application;
[0025] Figure 4 is Figure 3 is an enlarged structural schematic diagram of position A in
[0026] Figure 5 is a structural schematic diagram of the insert in the present application;
[0027] Figure 6 is a structural schematic diagram of the lower die in the present application.
[0028] The reference signs and names in the drawings are as follows:
[0029] 1, upper die; 2, lower die; 3, upper die core; 4, lower die core; 5, cavity; 6, inclined guide pillar; 7, first guide rail; 8, second guide rail; 9, row seat; 10, insert; 11, extension arm; 12, product profiling part; 13, limiting part; 14, inclined surface part; 15, limiting structure; 16, first sliding groove; 17, second sliding groove; 18, guide inclined surface; 19, connecting groove; 20, connecting end; 21, locking piece. DETAILED DESCRIPTION
[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0031] Please refer to Figures 1-6 In the embodiments of the utility model, a mobile phone shell injection mold comprises upper die 1 and lower die 2, the upper die 1 has upper die core 3, the lower die 2 has lower die core 4, the upper die 1 and lower die 2 are butted to cooperate to make upper die core 3 and lower die core 4 mutually butt joint to form cavity 5 for forming products, and a row structure is arranged between the upper die 1 and lower die 2.
[0032] The row structure comprises inclined guide pillar 6 fixed on the upper die 1, first guide rail 7 and second guide rail 8 fixed on the lower die 2, and row seat 9 slidably embedded between the first guide rail 7 and second guide rail 8, the inclined guide pillar 6 is slidably connected with the row seat 9, and the row seat 9 is driven by the inclined guide pillar 6 to slide towards the direction of butting or separating from the cavity 5.
[0033] The insert 10 is detachably connected to the row seat 9, the front end of the insert 10 away from the row seat 9 is provided with at least one extension arm 11, the front end of the extension arm 11 is provided with product profiling part 12, the product profiling part 12 is used for butting with the cavity 5, the upper end of the extension arm 11 and the product profiling part 12 is provided with limiting part 13, the limiting part 13 is used for positioning when the product profiling part 12 butts with the cavity 5, and the lower end of the extension arm 11 and the product profiling part 12 is provided with inclined surface part 14, the inclined surface part 14 is used for providing sliding guide when the product profiling part 12 butts with the cavity 5.
[0034] Among them, the product profiling part 12, the limiting part 13 and the inclined surface part 14 are connected on the extension arm 11.
[0035] In the technical scheme of the utility model:
[0036] The injection molding is to use the fusibility and moldability of plastics, the granular or powdered plastic raw materials are heated and melted in the injection molding machine cylinder, then under the push of the injection molding machine screw or plunger, a certain pressure and speed through the nozzle into the closed mold cavity; In this mobile phone shell injection mold, the upper die 1 and the lower die 2 are connected, the closed mold cavity 5 formed by the upper die 3 and the lower die 4 is the space for forming the mobile phone shell, when the plastic melt is injected into the mold cavity 5 and cooled and solidified in it, the molded mobile phone shell product can be obtained by opening the mold;
[0037] The inclined guide pillar 6 is fixed in the upper die 1 part, during the opening and closing of the injection mold, the upper die 1 will move relative to the lower die 2, because the inclined guide pillar 6 has a certain inclination angle, when the mold is opened, with the movement of the upper die 1 upward, the inclined guide pillar 6 will exert a oblique component force on the row seat 9, this component force can be decomposed into horizontal force, thereby driving the row seat 9 to slide in horizontal direction; The first guide rail 7 and the second guide rail 8 fixed on the lower die 2 provide accurate guide path for the sliding of the row seat 9, the row seat 9 can be slidably fitted between the two guide rails, so that the row seat 9 can only slide linearly along the direction defined by the first guide rail 7 and the second guide rail 8 when it is driven by the inclined guide pillar 6, which ensures the stability and accuracy of the movement of the row seat 9; The sliding fit between the inclined guide pillar 6 and the row seat 9 realizes the accurate control of the movement of the row seat 9, during the closing of the mold, the inclined guide pillar 6 drives the row seat 9 to slide towards the mold cavity 5, so that the insert 10 is connected with the mold cavity 5; During the opening of the mold, the inclined guide pillar 6 drives the row seat 9 away from the mold cavity 5, realizing the separation of the insert 10 and the mold cavity 5, so as to facilitate the taking out of the molded mobile phone shell;
[0038] The product profiling part 12 is arranged on the extension arm 11 at the front end of the insert 10, and the shape of the product profiling part 12 is consistent with a specific part (such as a key part or an earphone hole part) that needs to be formed on the mobile phone shell; during the injection molding process, when the insert 10 is connected with the mold cavity 5, the product profiling part 12 and the mold cavity 5 jointly form a local forming space of the mobile phone shell, and the plastic melt is filled into the space, so that the specific shape and structure that meet the design requirements can be formed on the mobile phone shell after cooling and solidification, thereby ensuring the accurate forming of the local details of the mobile phone shell; the limiting part 13 arranged on the extension arm 11 at the upper end of the product profiling part 12 plays a key positioning role when the insert 10 (the product profiling part 12) is connected with the mold cavity 5; when the row position seat 9 drives the insert 10 to slide towards the mold cavity 5, the limiting part 13 will be in contact with and matched with the corresponding part of the mold cavity 5, so as to limit the position of the insert 10, thereby ensuring that the product profiling part 12 can be accurately connected with the mold cavity 5, and avoiding the problems of inaccurate size of the mobile phone shell caused by the position deviation of the insert 10; the inclined surface part 14 arranged on the extension arm 11 at the lower end of the product profiling part 12 provides sliding guidance during the connection process of the insert 10 and the mold cavity 5; when the insert 10 slides towards the mold cavity 5, the inclined surface part 14 is in contact with and matched with the corresponding inclined surface of the mold cavity 5, so that the insert 10 can be more smoothly slid into the mold cavity 5 by utilizing the guiding characteristics of the inclined surface, thereby reducing the friction and jamming phenomenon between the insert 10 and the mold cavity 5, and improving the efficiency and stability of the connection of the insert 10.
[0039] In conclusion, the accurate matching of the product profiling part 12 and the specific part of the mobile phone shell enables the complex shape and details of the mobile phone shell to be accurately formed during the injection molding process, the positioning role of the limiting part 13 ensures that the relative position of the insert 10 and the mold cavity 5 is accurate when they are connected, the accurate connection can effectively reduce the forming defects such as flash and shrinkage caused by uneven gaps or misalignment, ensures the size accuracy of the mobile phone shell, makes the product meet the design specification requirements, improves the qualified rate of the product, the sliding guidance design of the inclined surface part 14 of the insert 10 enables the insert 10 to move smoothly during the connection or separation process with the mold cavity 5, thereby ensuring the continuity of production and improving the overall production efficiency; the insert 10 is connected in a detachable manner, so that when the insert 10 is worn or damaged during long-term use, the insert 10 can be quickly detached from the row position seat 9 and replaced with a new insert 10, without the need for large-scale maintenance or replacement of the entire mold.
[0040] In the embodiment of the utility model, the upper die core 3 or the lower die core 4 is provided with a limiting structure 15 matched with the limiting part 13.
[0041] The limiting structure 15 is a wall body of the upper die core 3 or the lower die core 4, and the limiting part 13 is abuttingly matched with the wall body.
[0042] Or, the limiting structure 15 is a limiting groove opened in the upper die core 3 or the lower die core 4, and the limiting part 13 is embeddedly matched with the limiting groove.
[0043] The limiting structure 15 is arranged on the upper die core 3 or the lower die core 4 of the mold and matched with the limiting part 13 of the insert 10, so as to accurately limit the position of the insert 10 in the mold cavity 5.
[0044] In the embodiment of the utility model, the first sliding groove 16 matched with the insert 10 is arranged on the parting surface of the lower mold 2.
[0045] The first sliding groove 16 and the second sliding groove 17 provide an accurate guiding path for the sliding of the insert 10 and the extension arm 11.
[0046] The guiding inclined surface 18 matched with the inclined surface part 14 is arranged in the second sliding groove 17, and the inclined surface part 14 slides along the guiding inclined surface 18 when the insert 10 slides to the mold cavity 5, so as to guide the insert 10 to smoothly enter the mold cavity 5 by the component force generated by the inclined angle of the inclined surface, and the inclined surface part 14 has the functions of buffering and positioning.
[0047] In the embodiment of the utility model, the connecting groove 19 is opened in the matched end of the insert 10 corresponding to the row seat 9, and the rear end of the insert 10 forms the connecting end 20 embedded in the connecting groove 19.
[0048] The connecting slot 19 formed on the row seat 9 and the connecting end 20 formed at the rear end of the insert 10 are mutually embedded, and the embedded structure can provide preliminary positioning for the insert 10; the shapes of the connecting slot 19 and the connecting end 20 are mutually matched, and when the insert 10 is installed, the connecting end 20 can be precisely embedded into the connecting slot 19, so that the insert 10 can be accurately positioned on the row seat 9 in the initial installation stage, thereby ensuring the relative position accuracy of the insert 10 and the row seat 9 and laying a foundation for subsequent fixing operations;
[0049] The connecting end 20 and the connecting slot 19 are fixed by the locking member 21, thereby further enhancing the stability of the connection between the insert 10 and the row seat 9; the locking member 21 is usually a bolt or a screw, which passes through the corresponding mounting holes of the connecting end 20 and the connecting slot 19 and can generate sufficient fastening force after being tightened, so as to firmly fix the insert 10 on the row seat 9.
[0050] In the embodiment of the utility model, the insert 10, the extension arm 11, the product profiling part 12, the limiting part 13 and the inclined surface part 14 are integrally formed.
[0051] The integrally formed insert 10 is beneficial to improving the structural strength and prolonging the service life of the insert 10.
[0052] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model.
Claims
1. An injection mold for a cell phone case, comprising: The mold comprises an upper mold and a lower mold, the upper mold has an upper mold core, the lower mold has a lower mold core, the upper mold and the lower mold are in abutting fit to form a mold cavity for molding products by abutting the upper mold core and the lower mold core, and a row structure is arranged between the upper mold and the lower mold; The row structure comprises an inclined guide column fixed to the upper mold, a first guide rail fixed to the lower mold, a second guide rail, and a row seat slidably fitted between the first guide rail and the second guide rail, the inclined guide column is in sliding fit with the row seat, and the row seat is driven by the inclined guide column to slide towards the direction of abutting or separating from the mold cavity; The row seat is detachably connected with an insert, the insert is provided with at least an extension arm at the front end away from the row seat, the extension arm is provided with a product profiling part at the front end, the product profiling part is used to abut the mold cavity, a limiting part is arranged at the upper end of the product profiling part on the extension arm, the limiting part is used to position when the product profiling part abuts the mold cavity, and an inclined surface part is arranged at the lower end of the product profiling part on the extension arm, the inclined surface part is used to provide sliding guide when the product profiling part abuts the mold cavity. The product profiling part, the limiting part and the inclined surface part are connected on the extension arm.
2. The injection mold for a cell phone case of claim 1, wherein, The upper mold core or the lower mold core is provided with a limiting structure matched with the limiting part; The limiting structure is a wall of the upper mold core or the lower mold core, and the limiting part is in abutting fit with the wall; Or, the limiting structure is a limiting groove arranged in the upper mold core or the lower mold core, and the limiting part is in embedded fit with the limiting groove.
3. The injection mold for a cell phone case of claim 1, wherein, A first sliding groove matched with the insert is arranged along the parting surface of the lower mold.
4. The injection mold for a cell phone case of claim 3, wherein, A second sliding groove matched with the extension arm is arranged in communication in the first sliding groove, and a guide inclined surface matched with the inclined surface part is arranged in the second sliding groove.
5. The injection mold for a cell phone case of claim 1, wherein, A connecting groove is arranged in the corresponding matched end of the row seat, the rear end of the insert forms a connecting end embedded in the connecting groove, and the connecting end is fixedly connected with the connecting groove by a locking member.
6. The injection mold for a cell phone case of any one of claims 1-5, wherein, The insert, the extension arm, the product profiling part, the limiting part and the inclined surface part are integrally formed.