WO2020062319A1

WO2020062319A1 - Mobile phone case and processing method therefor

Info

Publication number: WO2020062319A1
Application number: PCT/CN2018/109378
Authority: WO
Inventors: 俞家良
Original assignee: 俞家良
Priority date: 2018-09-30
Filing date: 2018-10-09
Publication date: 2020-04-02
Also published as: CN109278246B; CN109278246A

Abstract

The present invention relates to a mobile phone case and a processing method therefor. The mobile phone case comprises a soft plastic case, wherein the soft plastic case is made of a TPU material; and an inner wall of the soft plastic case is provided with a fluffy layer. According to the present invention, TPU is used as the material of the soft plastic case, and compared with silicone, same is simple in terms of the processing technique, and is also low in cost and is environmentally friendly and free of contamination. By providing a liquid flow channel and a flow stopping block on a back side of a plastic flat case, the flow speed on both sides of the plastic flat case can be reduced, such that the forming speed at a bottom side of the soft plastic case is faster than the forming speed at lateral sides so as to effectively prevent the soft plastic case from being broken due to plastic blockage, thereby improving the forming quality of the soft plastic case.

Description

Mobile phone case and processing method thereof

Technical field

The invention relates to the field of mobile phone accessories, in particular to a mobile phone shell and a processing method thereof.

Background technique

The existing mobile phone case is divided into a hard phone case and a soft phone case. The hard phone case looks good, but the drop resistance is poor; the soft phone case has a good drop resistance, but the texture is soft. Generally, silicone processing is used. The cost High, will cause some pollution to the environment.

The forming speed of the soft phone case on both sides is faster than the forming speed of the bottom surface during processing and molding. It is easy to cause gel blockage, which causes the soft phone case to crack during the molding process, which reduces the quality of the phone case.

Summary of the Invention

In order to solve the above problems, the present invention provides an environmental protection, low cost, good quality mobile phone case and a processing method thereof.

In order to achieve the above object, the present invention adopts the following technical solution: a mobile phone case including a soft plastic shell, the soft plastic shell is made of TPU material, and an inner wall of the soft plastic shell is provided with a fluff layer.

Preferably, the soft rubber shell is made of plastic flat shell.

Preferably, the back surface of the plastic flat shell is provided with a liquid flow channel and a blocking block, so that the molding speed of the bottom surface of the soft plastic shell is faster than the molding speed of the side, and the molding quality of the soft plastic shell is improved.

Preferably, the material of the flannel layer is microfiber cloth, which has good abrasion resistance and can prevent the mobile phone from being scratched.

Preferably, the four sides of the soft rubber shell form a edging structure.

Preferably, a power key slot is provided on one side of the soft rubber case, a volume key slot and a mute key through hole are provided on the other side of the soft rubber case, and a charging through hole is provided on the bottom of the soft rubber case. Rectangular through holes are provided on both sides of the charging through hole, and a camera through hole is provided on the bottom surface of the soft plastic shell.

Preferably, the processing method steps of the mobile phone case are as follows:

Step 1: Add plastic particles into the injection molding machine, and make a plastic flat shell with a liquid flow channel and a blocking block on the back by a mold;

Step 2: Place the plastic flat shell obtained in Step 1 in an injection molding machine;

Step 3: Add the TPU material into the injection molding machine, and use a plastic flat shell and a mold sleeve to make a soft rubber shell;

Step four, bonding a flannel layer to the inner wall of the soft plastic shell;

In step five, the soft plastic shell in step four is processed into a finished mobile phone case.

Preferably, in the first step, the surface of the mold is provided with a bump and a flow blocking channel corresponding to the liquid flow channel and the flow blocking block.

Preferably, the material of the plastic particles is PC.

Preferably, in step three, color pastes of different colors are added and mixed with the TPU material according to color requirements.

The beneficial effect of the present invention is that the present invention uses TPU as the material of the soft rubber shell. Compared with silica gel, the processing technology is simple, the cost is low, and the environment is pollution-free. In addition, the soft rubber shell made of TPU has a better feel. Therefore, there is no need to spray an oil layer on the outer surface of the mobile phone case, and a liquid flow channel and a blocking block are provided on the back of the plastic flat case, which can reduce the flow velocity on both sides of the plastic flat case, and make the bottom surface of the soft plastic shell faster than the side. Speed, effectively prevent the soft rubber shell from being broken due to colloid blocking, and improve the molding quality of the soft rubber shell.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front view of a soft plastic case.

Fig. 2 is a side view of the soft rubber case.

FIG. 3 is a bottom view of the soft rubber case.

Figure 4 is a rear view of the plastic case.

DESCRIPTION OF SYMBOLS: 1. Soft plastic shell; 11. Power key slot; 12. Volume key slot; 13. Mute key slot; 14. Camera through hole; 15. Charging through hole; 16. Rectangular through hole; 2. Plastic flat shell; 21. Liquid flow channel; 22. Blocking block.

detailed description

Please refer to FIGS. 1-4. The present invention relates to a mobile phone case and a method for processing the same, which includes a soft plastic shell 1, which is made of TPU material, and the soft plastic shell 1 is made of a plastic flat shell 2 It is made of a set of beer. The inner wall of the soft rubber shell 1 is provided with a microfiber cloth layer. The four sides of the soft rubber shell 1 form a hemming structure. One side of the soft rubber shell 1 is provided with a power key slot 11. The other side of the soft plastic shell 1 is provided with a volume key slot 12 and a mute key through hole. A bottom of the soft plastic shell 1 is provided with a charging through hole 15, and two sides of the charging through hole 15 are provided with rectangular through holes A hole 16 is provided on the bottom surface of the soft rubber case 1 with a camera through hole 14.

Preferably, the back surface of the plastic flat shell 2 is provided with a liquid flow channel 21 and a blocking block 22, so that the molding speed of the bottom surface of the soft plastic shell 1 is faster than the molding speed of the side edges, and the molding quality of the soft plastic shell 1 is improved.

Step one, adding PC plastic particles into the injection molding machine, melting into a colloid, and injecting the colloid into the mold of the injection molding machine under pressure to make a plastic flat shell 2;

Step 2: Place the plastic flat shell 2 obtained in Step 1 in an injection molding machine;

Step three, adding the TPU material and the color paste into the injection molding machine, after melting into a liquid, mix with the color paste and make the soft shell 1 through the plastic flat shell 2 and the mold sleeve;

Step four, bonding the microfiber cloth layer to the inner wall of the soft plastic shell 1;

In step five, the soft plastic shell 1 in step four is subjected to a molding process to make a finished mobile phone case.

Preferably, in the first step, the surface of the mold is provided with a bump and a flow blocking channel corresponding to the liquid flow channel 21 and the flow blocking block 22.

According to the present invention, a liquid flow channel 21 and a blocking block 22 are provided on the back of the plastic flat casing 2 to accelerate the bottom surface forming speed of the soft rubber casing 1 so that TPU colloids will not block the four corners of the soft rubber casing 1 and cause the soft rubber casing 1 to The cracking improves the quality of the soft rubber casing 1. A microfiber cloth layer is provided on the inner wall of the soft rubber casing 1 to prevent scratching of the mobile phone. The present invention uses TPU as the material of the soft rubber casing 1. Compared with silicone, the cost is low and processing The process is simple, environmentally friendly and pollution-free, and the texture of the TPU is hard, has a good anti-fall effect and feels good.

The above embodiments are merely descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and modifications made to the technical solution of the present invention by ordinary engineering technicians in the field. Improvements should all fall within the protection scope determined by the claims of the present invention.

Claims

A mobile phone case and a processing method thereof include a soft rubber shell, characterized in that the soft rubber shell is made of TPU material, and an inner wall of the soft rubber shell is provided with a fluff layer.
The mobile phone case according to claim 1, wherein the material of the flannel layer is microfiber cloth.
The mobile phone case according to claim 1, wherein the four sides of the soft plastic shell form a hemming structure.
The mobile phone case according to claim 1, characterized in that: one side of the soft rubber case is provided with a power key slot, and the other side of the soft rubber case is provided with a volume key slot and a mute key through hole, the soft rubber A charging through hole is provided at the bottom of the housing, rectangular through holes are respectively provided on both sides of the charging through hole, and a camera through hole is provided on the bottom surface of the soft rubber housing.
The mobile phone case according to claim 1, wherein the processing method is as follows:

Step 1: Add plastic particles into the injection molding machine, and make a plastic flat shell with a liquid flow channel and a blocking block on the back by a mold;

Step 2: Place the plastic flat shell obtained in Step 1 in an injection molding machine;

Step 3: Add the TPU material into the injection molding machine, and use a plastic flat shell and a mold sleeve to make a soft rubber shell;

Step four, bonding a flannel layer to the inner wall of the soft plastic shell;

In step five, the soft plastic shell in step four is processed into a finished mobile phone case.
The mobile phone case according to claim 5, characterized in that, in step 1, the surface of the mold is provided with a projection and a flow blocking channel corresponding to the liquid flow channel and the flow blocking block.
The mobile phone case according to claim 5, wherein the material of the plastic particles is PC.