CN211727273U

CN211727273U - Mobile phone shielding case demoulding mechanism that bends

Info

Publication number: CN211727273U
Application number: CN201922231983.0U
Authority: CN
Inventors: 朱宏伟
Original assignee: Kunshan Jiafengsheng Precise Electronics Co ltd
Current assignee: Kunshan Jiafengsheng Precise Electronics Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-10-23
Anticipated expiration: 2029-12-12

Abstract

The utility model discloses a mobile phone shielding case bending and demoulding mechanism, which comprises a lower mould insert, a slider and an ejection pin, wherein the slider consists of an inclined square column body, a forming characteristic part and a hanging platform, the forming characteristic part is arranged at the top of the body, and the hanging platform is arranged at the side surface of the body; the lower die insert is internally provided with a sliding chute with an opening at the upper end and a closed lower end, the inner side wall of the sliding chute is provided with a hanging groove, the body of the sliding block is positioned in the sliding chute, and the hanging table is positioned in the hanging groove; the lower die insert is internally provided with a through hole with the upper end communicated with the sliding groove and the lower end opened, and the top of the ejector pin penetrates through the through hole to be movably connected with the sliding block. The utility model discloses an optimize the structure of slider, cancelled original forked tail characteristic, also need not the wire cut forked tail spout in the lower mould insert that corresponds to the wire cut cost of demoulding mechanism that bends has been reduced.

Description

Mobile phone shielding case demoulding mechanism that bends

Technical Field

The utility model relates to a cell-phone shield cover demoulding mechanism that bends.

Background

In the field of electronic manufacturing, the shield cover has a wide application range, and is mainly applied in the fields of mobile phones, GPS (positioning system), and the like. The shielding cover is used for surrounding elements on a PCB (printed circuit board), electronic components such as LCM (liquid crystal module), circuits, assemblies, wires or interference sources of the whole system, so that the interference electromagnetic field is prevented from diffusing outwards, and meanwhile, the interference electromagnetic field is prevented from being influenced by the external electromagnetic field, and the aim of preventing electromagnetic interference is fulfilled. The existing shielding cover is made of metal materials such as stainless steel, copper white, nickel-plated steel plates and the like with different thicknesses according to different use occasions.

The periphery of the mobile phone shielding case is provided with a folding edge, and if the folding edge is provided with an inward convex hull or bud, the convex hull or the bud needs to be demoulded in the die opening process. At present, a dovetail-shaped sliding block is arranged on a lower die in a common method, and demolding is completed in a mode of obliquely running the sliding block, but the existing sliding block is complex in structure and high in wire cutting processing cost, and the sliding block in the existing bending demolding mechanism needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the slider structure is simplified, and the wire cutting cost of the bending demoulding mechanism is reduced.

In order to achieve the above purpose, the utility model provides a technical scheme as follows:

the mobile phone shielding case bending and demolding mechanism comprises a lower mold insert, a sliding block and a material ejecting pin, wherein the sliding block consists of an inclined square column type body, a molding characteristic part and a hanging table, the molding characteristic part is arranged at the top of the body, and the hanging table is arranged on the side face of the body; the lower die insert is internally provided with a sliding groove with an opening at the upper end and a closed lower end, the inner side wall of the sliding groove is provided with a hanging groove, the body of the sliding block is positioned in the sliding groove, and the hanging table is positioned in the hanging groove; the lower die insert is internally provided with a through hole with the upper end communicated with the sliding groove and the lower end opened, and the top of the liftout pin penetrates through the through hole to be movably connected with the sliding block.

The device comprises a lower die insert, a sliding block and a material ejecting pin, wherein the sliding block consists of an inclined square column type body, a forming characteristic part and a hanging table, the forming characteristic part is arranged at the top of the body, and the hanging table is arranged on the side surface of the body; the lower mold insert consists of a first insert and a second insert which are arranged on the left and right, wherein a convex block is arranged at the bottom of the first insert, a slot is arranged at the bottom of the second insert, and the convex block of the first insert is inserted into the slot of the second insert to realize the connection of the two; a sliding groove with an opening at the upper end and a closed lower end is formed between the first inlet block and the second inlet block, a hanging groove is formed in the inner side wall of the sliding groove, the body of the sliding block is located in the sliding groove, and the hanging table is located in the hanging groove; the upper end of the material pushing pin is communicated with the sliding groove, the lower end of the material pushing pin is provided with an opening, and the top of the material pushing pin penetrates through the opening and is movably connected with the sliding block.

Compared with the prior art, the beneficial effects of the utility model are that: through the structure of optimizing the slider, cancelled original forked tail characteristic, also need not the line to cut forked tail spout in the lower mould insert that corresponds to the line that has reduced the demoulding mechanism that bends cuts the cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

Fig. 1 is a schematic view of a bending state of a bending and demolding mechanism of a mobile phone shielding case in a first embodiment;

fig. 2 is a schematic diagram of a demoulding state of the bending and demoulding mechanism of the mobile phone shielding case in the first embodiment;

FIG. 3 is an exploded view of the lower mold insert in the first embodiment;

fig. 4 is a schematic diagram of a demoulding state of the bending and demoulding mechanism of the mobile phone shielding case in the second embodiment;

fig. 5 is an exploded view of the lower mold insert in the second embodiment.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Example one

Please refer to fig. 1, which illustrates a bending and demolding mechanism for a mobile phone shielding case, comprising a lower mold insert, a slider 10 and a material ejecting pin 20, wherein the slider 10 is composed of an inclined square column-shaped body 11, a molding feature 12 and a hanging platform 13, the molding feature 12 is disposed on the top of the body, and the hanging platform 13 is disposed on the side of the body. Referring to fig. 3, the lower mold insert consists of a first insert 31 and a second insert 32 which are arranged on the left and right, a convex block 35 is arranged at the bottom of the first insert 31, a slot 36 is arranged at the bottom of the second insert 32, and the convex block of the first insert 31 is inserted into the slot of the second insert 32 to realize connection of the two; a sliding groove 40 with an opening at the upper end and a closed lower end is arranged between the first inlet block 31 and the second inlet block 32, a hanging groove 41 is arranged on the inner side wall of the sliding groove, the body of the sliding block 10 is positioned in the sliding groove, and the hanging table 13 is positioned in the hanging groove; a through hole 70 with an upper end communicated with the sliding chute and an open lower end is arranged between the first inlet block 31 and the second inlet block 32, and the top of the ejector pin 20 penetrates through the through hole to be movably connected with the sliding block 10.

Referring to fig. 2, after the mold is opened, the ejector pin 20 is automatically ejected by the bottom spring 60 to eject the slider 10 upward along the sliding groove, and the slider 10 is released from the mold by the inclined surface of the sliding groove. If the slide block is of an integral structure, two side walls of the lower mold insert need to be of a through structure in order to facilitate the placement of the slide block 10, so that the slide block 10 only has two guide inclined surfaces. The lower die insert adopts a split structure, so that a sliding groove with four inclined planes can be processed, the sliding block 10 adopts the four inclined planes for guiding, and the stability is higher.

The original dovetail characteristics are cancelled by the sliding block, and the corresponding lower die insert does not need to cut a dovetail sliding groove, so that the wire cutting cost of the sliding block and the lower die insert is reduced.

Example two

Please refer to fig. 4, which illustrates a bending and demolding mechanism for a mobile phone shielding case, comprising a lower mold insert, a first slider 10, a second slider 10' and a material ejection pin 20, wherein the slider is composed of an inclined square column-shaped body, a molding feature part and a hanging table, the molding feature part is arranged at the top of the body, and the hanging table is arranged at the side of the body. Referring to fig. 5, the lower mold insert is composed of a first insert 31, a second insert 32 and a third insert 33 which are sequentially arranged, a convex block is arranged at the bottom of the first insert, a slot is arranged at the bottom of the second insert, the convex block of the first insert is inserted into the slot of the second insert to realize connection of the two, a convex block is arranged at the bottom of the third insert, a slot is arranged at the bottom of the second insert, and the convex block of the third insert is inserted into the slot of the second insert to realize connection of the two. A first sliding groove 42 with an opening at the upper end and a closed lower end is formed between the first entering block and the second entering block, a second sliding groove 43 with an opening at the upper end and a closed lower end is formed between the third entering block and the second entering block, a hanging groove 41 is formed in the inner side walls of the first sliding groove and the second sliding groove, the body of the first sliding block is located in the first sliding groove, the body of the second sliding block is located in the second sliding groove, and hanging platforms of the two sliding blocks are located in the corresponding hanging grooves. The upper end of the first feeding block is communicated with the first sliding groove, the lower end of the first feeding block is provided with a first through hole 71 with an opening, the upper end of the third feeding block is communicated with the second sliding groove, the lower end of the third feeding block is provided with a second through hole 72 with an opening, and the top of the ejector pin penetrates through the corresponding through hole to be movably connected with the corresponding sliding block.

After the mold is opened, the ejector pin automatically jacks up under the action of the bottom spring, the first sliding block is ejected upwards along the first sliding groove, and the second sliding block is ejected upwards along the second sliding groove. The slide block finishes demoulding under the action of the inclined plane of the sliding groove.

Among four hems in the electromagnetic shield, the structure of two relative hems is basically the same, and this embodiment can be used for the synchronous bending demoulding of two relative hems, has simplified the structure of bending demoulding mechanism.

Because the two ejector pins are arranged in the embodiment, in order to enable the two ejector pins to be ejected synchronously, the lower die insert is provided with a floating plate 80 below, and the bottom ends of the ejector pins are fixed in the floating plate.

Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The bending and demolding mechanism for the mobile phone shielding case is characterized by comprising a lower mold insert, a sliding block and a material ejecting pin, wherein the sliding block consists of an inclined square column type body, a forming characteristic part and a hanging table, the forming characteristic part is arranged at the top of the body, and the hanging table is arranged on the side face of the body; the lower die insert is internally provided with a sliding groove with an opening at the upper end and a closed lower end, the inner side wall of the sliding groove is provided with a hanging groove, the body of the sliding block is positioned in the sliding groove, and the hanging table is positioned in the hanging groove; the lower die insert is internally provided with a through hole with the upper end communicated with the sliding groove and the lower end opened, and the top of the liftout pin penetrates through the through hole to be movably connected with the sliding block.

2. The mobile phone shielding case bending and demolding mechanism according to claim 1, wherein the lower mold insert comprises a first insert and a second insert which are sequentially arranged, a protrusion is arranged at the bottom of the first insert, a slot is arranged at the bottom of the second insert, and the protrusion of the first insert is inserted into the slot of the second insert to realize connection of the two; the sliding groove and the through hole are arranged between the first inlet block and the second inlet block.

3. The bending and demolding mechanism for the mobile phone shielding case according to claim 2, wherein a third entering block is arranged on one side of the first entering block, opposite to the second entering block, and the through hole and the first chute in the opposite direction are arranged between the third entering block and the second entering block.

4. The mobile phone shielding case bending and demolding mechanism according to claim 3, wherein a floating plate is arranged below the lower mold insert, and the bottom end of the ejector pin is fixed in the floating plate.