Injection-molded breathable TPU (thermoplastic polyurethane) magnet mobile phone shell mold

Abstract

The utility model discloses an injection-molded breathable TPU (thermoplastic polyurethane) magnet mobile phone shell mold, which relates to the technical field of molds and comprises an upper fixing plate and a lower fixing plate, an upper mold is arranged at the side end of the upper fixing plate, a lower mold is arranged at the side end of the lower fixing plate, a mold core is arranged between the upper mold and the lower mold, a mounting groove is formed in the mold core, and the mounting groove is communicated with the upper mold and the lower mold. A fixing ring is placed in the mounting groove, a sleeve body is formed on the mold core through injection molding, and a groove is formed in the side, tightly attached to the mold core, of the sleeve body; the utility model discloses an injection-molded breathable TPU magnet mobile phone shell mold. The groove design of the mobile phone shell can be facilitated through the fixing ring, the mobile phone cover can be conveniently taken from the mold core through the conical arrangement of the upper end and the lower end of the fixing ring, the discharging efficiency of an operator is improved, and the productivity is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field, concretely is a kind of injection molding breathable TPU magnet mobile phone shell mould. BACKGROUND

[0002] With the rapid development of mobile communication technology and the increasing demand of consumers for personalized, functional mobile phone accessories, mobile phone shell, as an important accessory for protecting mobile phone from damage and having decoration function, its design and manufacturing technology are also constantly innovated;Among many mobile phone shell materials, thermoplastic polyurethane (TPU) is favored due to its good elasticity, wear resistance, oil resistance and environmental protection characteristics;Especially injection molding breathable TPU material, not only can provide excellent buffer protection, but also can effectively dissipate heat through breathable design, prolong the service life of mobile phone and improve user experience.

[0003] However, there are problems in the current production of mobile phone shell mould, the mould will stick when opening, and the connection between the sleeve body and the mould core will be too tight due to the protrusion of the fixing ring and the concave dislocation of the sleeve body, which is not convenient for blanking. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides an injection molding breathable TPU magnet mobile phone shell mould, which solves the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: an injection molding breathable TPU magnet mobile phone shell mould, comprising an upper fixed plate and a lower fixed plate, the side end of the upper fixed plate is provided with an upper mould, the side end of the lower fixed plate is provided with a lower mould, a mould core is arranged between the upper mould and the lower mould, an installation groove is formed in the mould core, a fixing ring is placed in the installation groove, a sleeve body is formed on the mould core by injection molding, and a groove is formed on one side of the sleeve body close to the mould core.

[0006] Further, the installation end of the fixing ring is provided with an installation hole, the installation groove is provided with a connecting hole, and a fixing screw is arranged in the connecting hole to install the fixing ring in the installation groove.

[0007] Further, the inner side angle of one end edge of the fixing ring close to the sleeve body is 100°, and the inner side angle of one end edge of the fixing ring close to the installation groove is 95°.

[0008] Further, the number of installation holes and connecting holes is five, and the spacing is equal.

[0009] Further, the thickness of the sleeve body is 0.75-0.9mm.

[0010] Further, the fixing ring is preferably breathable steel.

[0011] With respect to the above background art, the injection molding breathable TPU magnet mobile phone shell mold provided by the present application comprises a mold which is very mature at present, and a fixing ring as a core component, and the principle thereof relies on the upper and lower end taper setting formed by the fixing ring to reduce the contact area with the mobile phone cover, thereby achieving the effect of facilitating the mobile phone cover to take material.

[0012] The utility model provides a kind of injection molding breathable TPU magnet mobile phone shell mold.Compared with prior art, it has the following beneficial effects:

[0013] The injection molding breathable TPU magnet mobile phone shell mold;Through the fixing ring, the groove design of mobile phone shell can be facilitated, and the taper setting of the upper and lower ends of the fixing ring can facilitate the mobile phone cover to take material from the mold core, improve the discharging efficiency of operator and improve the production capacity. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structure schematic diagram of the utility model;

[0015] Figure 2 It is the structure schematic diagram of upper die and lower die of the utility model;

[0016] Figure 3 It is the structure schematic diagram of mold core and sleeve body of the utility model;

[0017] Figure 4 It is the plane schematic diagram of sleeve body and mold core of the utility model;

[0018] Figure 5 It is the structure schematic diagram of fixing ring and mounting hole of the utility model.

[0019] In the drawing: 1, upper fixed plate;2, upper die;3, lower die;4, lower fixed plate;5, mold core;6, mounting groove;7, connecting hole;8, fixing ring;9, mounting hole;10, sleeve body;11, groove. DETAILED DESCRIPTION

[0020] 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, not 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 scope of protection of the utility model.

[0021] Please refer to Figures 1-5The utility model provides a technical scheme: a kind of injection molding breathable TPU magnet mobile phone shell mould, including upper fixed plate 1 and lower fixed plate 4, the side end of upper fixed plate 1 is provided with upper die 2, the side end of lower fixed plate 4 is provided with lower die 3, upper die 2 and lower die 3 are provided with mould core 5 between, mould core 5 is provided with mounting groove 6, fixed ring 8 is placed in mounting groove 6, sleeve body 10 is formed on mould core 5 by injection molding, and the recess 11 of one side of sleeve body 10 is formed in close contact with mould core 5;Mounting hole 9 is formed in the mounting end of fixed ring 8, connecting hole 7 is formed in mounting groove 6, fixed screw is arranged in connecting hole 7, and fixed ring 8 is arranged in mounting groove 6 by fixed screw, the inside angle of one end edge of fixed ring 8 in close contact with sleeve body 10 is 100 °, the inside angle of one end edge of fixed ring 8 in close contact with mounting groove 6 is 95 °, the number of mounting hole 9 and connecting hole 7 is five, and the interval is equal, the thickness of sleeve body 10 is 0.75-0.9mm, and fixed ring 8 is preferably breathable steel;By the up-and-down movement of upper fixed plate 1 and lower fixed plate 4, in turn drive upper die 2 and lower die 3 open and close, this is prior art known, without too much repetition, fixed ring 8 is fixed in mounting groove 6 of mould core 5 by five screws, and the upper end surface of fixed ring 8 is convex, the inside of sleeve body 10 is formed into recess 11 by convex position, the shape of fixed ring 8 is formed by recess 11, and the upper end and lower end of fixed ring 8 are all tapered, wherein the inside angle of one end edge of fixed ring 8 in close contact with sleeve body 10 is 100 °, and the inside angle of one end edge of fixed ring 8 in close contact with mounting groove 6 is 95 °, so that sleeve body 10 and fixed ring 8 can be separated conveniently when opening mould, the efficiency of sleeve body 10 blanking is improved, since the close adhesion of the parting surface of upper die 2 and lower die 3, the difficult opening of mould and other conditions can be solved;Solve many problems such as the insufficient surface area provided by the ejector pin, insert and other components to accommodate the large amount of gas that can be generated, avoid the flash and other defects caused by the use of parting surface or other exhaust systems, improve the molding production efficiency, save production cost, fixed ring 8 is made of breathable steel, wherein the specification of breathable steel is PM-35-7, PM-35-25, PM-35-35, the breathable steel is made of fine particle spherical powder stainless steel by high-temperature sintering, and the inside is uniformly filled with micro exhaust holes in all directions, to solve the difficult gas condition of upper die 2 and lower die 3.

[0022] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form, although the utility model has been disclosed as above with preferred embodiment, however, it is not used to limit the utility model, any person skilled in the art, without departing from the technical scheme range of the utility model, can make some changes or modification to the equivalent embodiment of equivalent change by using the disclosed technical content, but as long as it does not depart from the technical scheme content of the utility model, according to the technical essence of the utility model, any simple modification, equivalent change and modification to the above embodiment are still within the scope of the technical scheme of the utility model.

Claims

1. An injection molding breathable TPU magnet mobile phone case mold, comprising an upper fixed plate (1) and a lower fixed plate (4), characterized in that, The side end of the upper fixed plate (1) is provided with an upper die (2), the side end of the lower fixed plate (4) is provided with a lower die (3), a die core (5) is arranged between the upper die (2) and the lower die (3), the die core (5) is provided with a mounting groove (6), a fixed ring (8) is placed in the mounting groove (6), a sleeve body (10) is formed on the die core (5) by injection molding, and a recess (11) is formed on one side of the sleeve body (10) close to the die core (5); the inner side of one end edge of the fixed ring (8) close to the sleeve body (10) is provided with an included angle of 100°, and the inner side of one end edge of the fixed ring (8) close to the mounting groove (6) is provided with an included angle of 95°.

2. The injection-molded, breathable TPU magnet phone case mold of claim 1, wherein, The mounting end of the fixed ring (8) is provided with a mounting hole (9), the mounting groove (6) is provided with a connecting hole (7), and a fixing screw is arranged in the connecting hole (7).

3. The injection-molded, breathable TPU magnet phone case mold of claim 2, wherein, The number of the mounting hole (9) and the connecting hole (7) is five, and the spacing is equal.

4. The injection-molded, breathable TPU magnet phone case mold of claim 3, wherein, The thickness of the sleeve body (10) is 0.75-0.9mm.

5. The injection-molded, breathable TPU magnet phone case mold of claim 2, wherein, The fixed ring (8) is preferably air-permeable steel.

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