CN213499863U

CN213499863U - Novel tablet press of cell-phone pottery backplate

Info

Publication number: CN213499863U
Application number: CN202021995989.1U
Authority: CN
Inventors: 李运平; 杜建周; 彭水军; 郭心语; 钟栋青; 丁煜; 艾多梅; 吴楠; 耿翊波
Original assignee: Yancheng Institute of Technology
Current assignee: Yancheng Institute of Technology
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-06-22
Anticipated expiration: 2030-09-11

Abstract

The utility model relates to a tablet press technical field specifically discloses a novel tablet press of cell-phone pottery backplate, including base, guide pillar, upper beam, master cylinder, be equipped with the fly leaf with master cylinder piston connection on the guide pillar, the fly leaf with guide pillar sliding connection, detachably installs the formpiston on the fly leaf, still be equipped with the bottom plate on the base, detachably installs down the formpiston on the bottom plate, still be equipped with the side forms around the formpiston down, be equipped with the round bulge loop in the working face of side forms, the side working face phase-match of bulge loop and lower formpiston, still be equipped with vice hydro-cylinder on the bottom plate, vice hydro-cylinder is hollow hydro-cylinder, vice hydro-cylinder cover in outside the formpiston down, vice hydro-cylinder piston with the side forms bottom surface is connected. The utility model discloses can utilize the bulge loop of side forms to exert pressure alone the side frame of cell-phone ceramic backplate, have the advantage that finished product density is even, the easy drawing of patterns.

Description

Novel tablet press of cell-phone pottery backplate

Technical Field

The utility model relates to a tablet press technical field, concretely relates to novel tablet press of cell-phone pottery backplate.

Background

In the 5G era of mobile phones, non-electromagnetic shielding materials benefit. The ceramic material has high hardness, can pass a drop test, has better texture and color effects, is wear-resistant and scratch-resistant, has better hand feeling, is not easy to leave fingerprints, and has higher advantages compared with mobile phone backboards made of other materials. The ceramic back plate of the mobile phone is generally obtained by the processes of binder removal sintering, grinding and polishing and the like after ceramic powder is subjected to a forming process, and compression molding is a main process in the forming process.

Many cell-phone ceramic case have by planar ceramic backplate and ceramic side frame concatenation to form, are unfavorable for satisfying the high-grade three proofings requirement of cell-phone, and consequently integral ceramic backplate is the market trend, and the backplate of taking the side appears the difficult compaction of side frame part easily when compression molding, the uneven condition of density, and is just as split type ceramic backplate easy demoulding.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem be: the novel tablet press of cell-phone ceramic backplate to among the prior art cell-phone ceramic backplate is unfavorable for cell-phone three proofings, density uneven, the difficult problem of drawing of patterns, provides an integral density even, the novel tablet press of cell-phone ceramic backplate of easy drawing of patterns.

The utility model discloses a following technical scheme realizes, a novel tablet press of cell-phone pottery backplate, which comprises a base, be equipped with many guide pillars on the base, the guide pillar upper end is fixed with the roof beam, the roof beam center is equipped with the master cylinder, be equipped with the fly leaf with master cylinder piston connection on the guide pillar, the fly leaf with guide pillar sliding connection, detachably installs the male die on the fly leaf, still be equipped with the bottom plate on the base, detachably installs lower male die on the bottom plate, still be equipped with the side forms around the male die, be equipped with the round bulge loop in the working face of side forms, the side working face phase-match of bulge loop and lower male die, still be equipped with vice hydro-cylinder on the bottom plate, vice hydro-cylinder is hollow cylinder, vice hydro-cylinder cover in outside the lower male die, vice hydro-cylinder piston with the side forms bottom surface is connected.

Further, in order to ensure the extrusion allowance of the ceramic side frame of the mobile phone, a step surface for limiting the side die is arranged on the lower male die and matched with the convex ring, and when the step surface is abutted against the convex ring, the distance from the upper end surface of the lower male die to the upper end surface of the convex ring is greater than the distance from the inner surface of the ceramic back plate of the mobile phone to the end surface of the side frame.

Further, in order to ensure the up-and-down movement stability of the side die, the side die is connected with the guide pillar in a sliding mode.

Furthermore, the curve sizes of the back surfaces and the outer frames of the upper male die and the ceramic back plate of the mobile phone are consistent, the curve sizes of the inner surfaces and the inner frames of the lower male die and the ceramic back plate of the mobile phone are consistent, the side dies are consistent with the side frames of the ceramic back plate of the mobile phone, and the height of the convex ring is consistent with the thickness of the side frames of the ceramic back plate of the mobile phone.

Furthermore, in order to further facilitate demolding, an ejection oil cylinder is further arranged in the base, a piston of the ejection oil cylinder is fixedly connected with the top plate, a plurality of ejector rods are fixed on the top plate, through holes matched with the ejector rods are formed in the bottom plate and the lower male die, the ejector rods penetrate through the bottom plate and the lower male die through the through holes, and when the ejection oil cylinder does not work, the upper surface of the ejector rods is flush with the end face of the lower male die.

The utility model has the advantages that:

1. the utility model discloses an go up formpiston, lower formpiston, side forms, the side forms is equipped with the bulge loop, mixes ceramic powder and puts into the side forms by feed mechanism in, and the master cylinder starts, goes up the positive mould and begins to push down, lifts up the exhaust after a period of time, exerts pressure again, begins the pressurize after reaching certain pressure, and vice hydro-cylinder starts this moment, utilizes the bulge loop of side forms to extrude the side frame of cell-phone ceramic backplate, has prevented that the positive mould is poor to frame part extrusion effect, and density is uneven.

2. The utility model discloses it is mobilizable between side forms and the lower positive mould, the convenient drawing of patterns, the utility model discloses still be equipped with ejecting cylinder simultaneously, be connected with a plurality of ejector pins on ejecting cylinder piston terminal roof, after preforming work is accomplished, go up the positive mould and lift up, ejecting cylinder and sub-cylinder begin work, with ejector pin cooperation bulge loop, realize from frame to central multiple spot support, alright light with the cell-phone backplate drawing of patterns.

Drawings

Fig. 1 is a schematic structural view of a novel tablet press for mobile phone ceramic back plates according to the present invention;

FIG. 2 is a partial enlarged view of the upper male mold, the lower male mold and the side mold at the position I in FIG. 1.

In the figure: 1, a base; 11 a base plate; 12 ejecting out the oil cylinder; 121 ejecting out a cylinder piston; 13 a top plate; 14, a mandril; 2, guiding a column; 3, putting the beam on; 4, a main oil cylinder; 41 master cylinder piston; 5 a movable plate; 6, mounting a male die; 7, a lower male die; 71 a step surface; 8, performing side die; 81 convex rings; 9 auxiliary oil cylinders; 91 secondary cylinder piston; 10 ceramic backplate for mobile phone.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-2, a novel tablet press for a ceramic back plate of a mobile phone comprises a base 1, a plurality of guide posts 2 are arranged on the base, an upper beam 3 is fixed at the upper end of the guide post 2, a main oil cylinder 4 is arranged at the center of the upper beam 3, a movable plate 5 connected with a main oil cylinder piston 41 is arranged on the guide post 2, the movable plate 5 is connected with the guide post 2 in a sliding way, an upper male die 6 is detachably arranged on the movable plate 5, the base 1 is also provided with a bottom plate 11, the bottom plate 11 is detachably provided with a lower male die 7, a side die 8 is arranged around the lower male die 7, a circle of convex ring 81 is arranged in the working surface of the side die 8, the convex ring 81 is matched with the side working surface of the lower male die 7, the bottom plate 11 is also provided with an auxiliary oil cylinder 9, the auxiliary oil cylinder 9 is a hollow oil cylinder, the auxiliary oil cylinder 9 is sleeved outside the lower male die 7, and an auxiliary oil cylinder piston 91 is connected with the bottom surface of the side die 8. The mixed ceramic powder is put into the side die 8 by the feeding mechanism, the main oil cylinder 4 is started, the upper male die 6 starts to press downwards, the upper male die is lifted for exhausting after a period of time, then the pressure is applied, the pressure maintaining is started after a certain pressure is reached, the auxiliary oil cylinder 9 is started at the moment, the side frame of the mobile phone ceramic back plate 10 is extruded by the convex ring 81 of the side die 8, and the situation that the upper male die 6 has poor extruding effect on the side frame part and uneven density is prevented. Meanwhile, the side die 8 and the lower male die 7 are movable, so that the die is convenient to demould.

In practical application, in order to ensure the extrusion allowance of the ceramic side frame of the mobile phone, the lower male die 7 is provided with a step surface 71 for limiting the side die 8, the step surface 71 is matched with the convex ring 81, and when the step surface 71 is abutted against the convex ring 81, the distance from the upper end surface of the lower male die 7 to the upper end surface of the convex ring 81 is greater than the distance from the inner surface of the ceramic back plate 10 of the mobile phone to the end surface of the side frame.

In practical application, in order to ensure the up-and-down movement stability of the side die 8, the side die 8 is connected with the guide pillar 2 in a sliding manner.

In practical application, the curved dimensions of the back surface and the outer frame of the upper male die 6 and the ceramic back plate 10 of the mobile phone are the same, the curved dimensions of the inner surface and the inner frame of the lower male die 7 and the ceramic back plate 10 of the mobile phone are the same, the side die 8 and the side frame of the ceramic back plate 10 of the mobile phone are the same, and the height of the convex ring 81 and the thickness of the side frame of the ceramic back plate 10 of the mobile phone are the same.

In practical application, in order to further facilitate demolding, an ejection cylinder 12 is further arranged in the base 1, a piston 121 of the ejection cylinder is fixedly connected with a top plate 13, a plurality of ejector rods 14 are fixed on the top plate 13, through holes matched with the ejector rods 14 are formed in the bottom plate 11 and the lower male die 7, the ejector rods 14 penetrate through the bottom plate 11 and the lower male die 7 through the through holes, and when the ejection cylinder 12 does not work, the upper surface of the ejector rods 14 is flush with the end face of the lower male die 7.

The utility model discloses a theory of operation:

the mixed ceramic powder is put into the side die 8 by the feeding mechanism, the main oil cylinder 4 is started, the upper male die 6 starts to press downwards, the upper male die is lifted for exhausting after a period of time, then the pressure is applied, the pressure maintaining is started after a certain pressure is reached, the auxiliary oil cylinder 9 is started at the moment, the side frame of the mobile phone ceramic back plate 10 is extruded by the convex ring 81 of the side die 8, and the situation that the upper male die 6 has poor extruding effect on the side frame part and uneven density is prevented.

The main oil cylinder 4 and the auxiliary oil cylinder 9 are both maintained for a period of time to complete tabletting work, at the moment, the auxiliary oil cylinder 9 stops applying pressure and keeps still, the main oil cylinder piston 41 contracts, the upper male die 6 is lifted, the ejection oil cylinder 12 and the auxiliary oil cylinder 9 simultaneously start working, the ejection rod 14 is matched with the convex ring 81 to realize multi-point support from a frame to the center, the ceramic backboard 10 of the mobile phone can be easily separated from the lower male die 7, and finally the auxiliary oil cylinder piston 91 contracts to realize separation of the ceramic backboard 10 of the mobile phone from the side die 8, and finished products are taken away by a material taking mechanism.

To sum up, a novel tablet press of cell-phone ceramic backplate can have the advantage that finished product density is even, the easy drawing of patterns at preforming work.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the present invention is to provide a person skilled in the art with the ability to understand the contents of the present invention and implement the same, and not to limit the scope of the present invention.

Claims

1. The utility model provides a novel tablet press of cell-phone pottery backplate which characterized in that: the die comprises a base (1), wherein a plurality of guide pillars (2) are arranged on the base, an upper beam (3) is fixed at the upper ends of the guide pillars (2), a main oil cylinder (4) is arranged at the center of the upper beam (3), a movable plate (5) connected with a main oil cylinder piston (41) is arranged on each guide pillar (2), the movable plate (5) is in sliding connection with the guide pillars (2), an upper male die (6) is detachably mounted on the movable plate (5), a bottom plate (11) is further arranged on the base (1), a lower male die (7) is detachably mounted on the bottom plate (11), side dies (8) are further arranged around the lower male die (7), a circle of convex ring (81) is arranged in the working face of each side die (8), the convex ring (81) is matched with the side working face of the lower male die (7), an auxiliary oil cylinder (9) is further arranged on the bottom plate (11), and the auxiliary oil cylinder, the auxiliary oil cylinder (9) is sleeved outside the lower male die (7), and an auxiliary oil cylinder piston (91) is connected with the bottom surface of the side die (8).

2. The novel tablet press for the ceramic back plate of the mobile phone as claimed in claim 1, wherein: the lower male die (7) is provided with a step surface (71) used for limiting the side die (8), the step surface (71) is matched with the convex ring (81), and when the step surface (71) is abutted against the convex ring (81), the distance from the upper end surface of the lower male die (7) to the upper end surface of the convex ring (81) is greater than the distance from the inner surface of the ceramic back plate (10) of the mobile phone to the end surface of the side frame.

3. The novel tablet press for the ceramic back plate of the mobile phone as claimed in claim 1, wherein: the side die (8) is connected with the guide pillar (2) in a sliding manner.

4. The novel tablet press for the ceramic back plate of the mobile phone as claimed in claim 1, wherein: the curve sizes of the back face and the outer frame of the upper male die (6) and the ceramic back plate (10) of the mobile phone are consistent, the curve sizes of the inner surface and the inner frame of the lower male die (7) and the ceramic back plate (10) of the mobile phone are consistent, the side die (8) is consistent with the side frame of the ceramic back plate (10) of the mobile phone in size, and the height of the convex ring (81) is consistent with the thickness of the side frame of the ceramic back plate (10) of the mobile phone.

5. The novel tablet press for the ceramic back plate of the mobile phone as claimed in claim 1, wherein: the die is characterized in that an ejection oil cylinder (12) is further arranged in the base (1), an ejection oil cylinder piston (121) is fixedly connected with the top plate (13), a plurality of ejector rods (14) are fixed on the top plate (13), through holes matched with the ejector rods (14) are formed in the bottom plate (11) and the lower male die (7), the ejector rods (14) penetrate through the bottom plate (11) and the lower male die (7) through the through holes, and when the ejection oil cylinder (12) does not work, the upper surface of the ejector rods (14) is flush with the end face of the lower male die (7).