阅读说明：本技术 一种耐冲击性触控键盘及其生产方法 (Impact-resistant touch keyboard and production method thereof ) 是由 肖新煌 刘飞 于 2019-08-27 设计创作，主要内容包括：本发明公开一种耐冲击性触控键盘及其生产方法,包括基层和设置在基层上的接触层。触控键盘的生产原料包括硅酸钠、硅酸钙、二氧化硅、氮化硅、二氧化镁、氧化锌、二氧化钛、硅胶、PVB颗粒。触控键盘的生产方法包括以下步骤:基层的制备、接触层的制备和终成形。本发明在制备触控键盘时,添加有二氧化镁、氧化锌、二氧化钛,降低了变形率、增加了硬度,可以根据实际成产调节比例适用于各种变形率和硬度的触控键盘；同时,在制备时添加有二氧化钛和硅胶,二氧化钛和硅胶是良好的遮光材料,且通过检测得知二氧化钛和硅胶单独存在的作用差距不大,不如二氧化钛和硅胶结合起到的遮光作用,可以根据实际需要调节二氧化钛和硅胶的比例。(The invention discloses an impact-resistant touch keyboard and a production method thereof. The production raw materials of the touch keyboard comprise sodium silicate, calcium silicate, silicon dioxide, silicon nitride, magnesium dioxide, zinc oxide, titanium dioxide, silica gel and PVB particles. The production method of the touch keyboard comprises the following steps of preparation of the base layer, preparation of the contact layer and final forming. When the touch keyboard is prepared, the magnesium dioxide, the zinc oxide and the titanium dioxide are added, so that the deformation rate is reduced, the hardness is increased, and the proportion can be adjusted according to actual production to be suitable for touch keyboards with various deformation rates and hardness; meanwhile, titanium dioxide and silica gel are added during preparation, the titanium dioxide and the silica gel are good shading materials, the effect difference existing independently of the titanium dioxide and the silica gel is not large through detection, the shading effect is not the same as that played by the combination of the titanium dioxide and the silica gel, and the proportion of the titanium dioxide and the silica gel can be adjusted according to actual needs.)

1. An impact-resistant touch keyboard is characterized by comprising a base layer (1) and a contact layer (2) arranged on the base layer (1), wherein the base layer (1) is connected with a circuit board, the contact layer (2) is fixed on the base layer (1), and the contact layer (2) is in direct contact with an operator to control the normal input of the touch keyboard;

the production raw materials of the touch keyboard comprise sodium silicate, calcium silicate, silicon dioxide, silicon nitride, magnesium dioxide, zinc oxide, titanium dioxide, silica gel and PVB particles;

the touch keyboard comprises the following production raw materials in parts by weight: 120-160 parts of sodium silicate, 15-25 parts of calcium silicate, 18-24 parts of silicon dioxide, 12-15 parts of silicon nitride, 21-28 parts of magnesium dioxide, 15-24 parts of zinc oxide, 24-36 parts of titanium dioxide, 22-30 parts of silica gel and 8-14 parts of PVB particles.

2. The impact-resistant touch keyboard according to claim 1, wherein the touch keyboard is produced from the following raw materials in parts by weight: 140 parts of sodium silicate, 20 parts of calcium silicate, 21 parts of silicon dioxide, 13 parts of silicon nitride, 25 parts of magnesium dioxide, 20 parts of zinc oxide, 30 parts of titanium dioxide, 26 parts of silica gel and 10 parts of PVB particles.

3. A production method of an impact-resistant touch keyboard is characterized by comprising the following steps:

preparation of first, base layer

1) Dividing sodium silicate into two parts by mass, mixing one part of the sodium silicate with calcium silicate, silicon dioxide, silicon nitride, magnesium dioxide and zinc oxide, adding the mixture into a 5% sodium chloride solution after mixing completely, soaking for 2-3 hours, sterilizing, taking out and draining;

2) grinding the mixture obtained in the step 1 by using grinding equipment, putting the powder into a sealing box after grinding is finished, and introducing alcohol vapor into the sealing box for drying and disinfection;

3) heating the mixture obtained in the step 2 in heating equipment, and stirring the mixture;

4) cooling the mixture obtained in the step 3 in the molten state, placing the mixture in a forming mold after cooling to the temperature of 320-350 ℃, and pressing the mixture into a required shape and thickness to obtain a base layer;

preparation of contact layer

1) Mixing the other part of sodium silicate with titanium dioxide, silica gel and PVB particles, adding the mixture into an ethanol solution with the concentration of 25% after complete mixing, soaking for 1-2 hours, taking out after disinfection and draining;

2) heating the mixture obtained in the step 1 in heating equipment, keeping the mixture in full contact in the heating process, and keeping the temperature constant for 30min after heating to 1300-;

3) cooling the mixture in the molten state obtained in the step 2, placing the mixture in a forming mold after cooling to the temperature of 350-380 ℃, and pressing the mixture into a required shape and thickness to obtain a contact layer;

third, final forming

1) Coating a silica gel layer between the obtained base layer and the contact layer to bond the base layer and the contact layer, and keeping the base layer and the contact layer completely aligned while bonding;

2) extruding the base layer and the contact layer obtained in the step 1 by using a tablet press to obtain a preformed product;

3) and (3) carrying out ultrasonic cleaning on the preformed product obtained in the step (2), and then toughening to obtain a finished product.

4. The method as claimed in claim 1, wherein the first step comprises grinding the powder into particles of 120-140 meshes, drying and sterilizing the particles for 1-2 hours, and introducing alcohol vapor at a rate of 25-30 ml/s.

5. The method as claimed in claim 1, wherein the heating temperature in the first step is 1500-.

6. The method for producing an impact-resistant touch keyboard as claimed in claim 1, wherein in the second step, the heating speed is 5-10 ℃/min, the stirring is performed every 5min, the stirring time is 10s, and the stirring speed is 40-45 r/min.

7. The method for manufacturing an impact-resistant touch keyboard according to claim 1, wherein the thickness of the silicone layer in the third step is reduced to 0.1-0.15 mm.

Technical Field

The invention relates to the field of production of touch keyboards, in particular to an impact-resistant touch keyboard and a production method thereof.

Background

In recent years, with the rapid development of touch sensing technology, more and more electronic devices begin to use a main touch sensing component to replace a conventional input method, and a touch keyboard is also in use. The touch keyboard replaces the traditional solid keyboard in many times, not only brings convenience to people, but also provides a more attractive and comfortable operation environment. The touch keyboard is internally provided with keys on the basis of the touch panel, and the smoothness of the touch panel is kept.

Disclosure of Invention

In order to solve the defects mentioned in the background art, the invention aims to provide an impact-resistant touch keyboard and a production method thereof, when the touch keyboard is prepared, magnesium dioxide, zinc oxide and titanium dioxide are added, so that the deformation rate is reduced, the hardness is increased, meanwhile, the influence rate of the combination of the magnesium dioxide and the zinc oxide obtained by detection is greater than that of the titanium dioxide, and the impact-resistant touch keyboard can be suitable for touch keyboards with various deformation rates and hardnesses according to the actual production regulation ratio;

meanwhile, when the touch control keyboard is prepared, the titanium dioxide and the silica gel are added, the titanium dioxide and the silica gel are good shading materials, the effect difference existing between the titanium dioxide and the silica gel is not large through detection, the effect is not like the shading effect achieved by combining the titanium dioxide and the silica gel, and the proportion of the titanium dioxide and the silica gel can be adjusted according to actual needs.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides an impact-resistant touch keyboard, includes basic unit and the contact layer of setting on the basic unit, and the basic unit is connected with the circuit board, and the contact layer is fixed on the basic unit, and contact layer and operating personnel direct contact control touch keyboard's normal input.

The production raw materials of the touch keyboard comprise sodium silicate, calcium silicate, silicon dioxide, silicon nitride, magnesium dioxide, zinc oxide, titanium dioxide, silica gel and PVB particles.

The touch keyboard comprises the following production raw materials in parts by weight: 120-160 parts of sodium silicate, 15-25 parts of calcium silicate, 18-24 parts of silicon dioxide, 12-15 parts of silicon nitride, 21-28 parts of magnesium dioxide, 15-24 parts of zinc oxide, 24-36 parts of titanium dioxide, 22-30 parts of silica gel and 8-14 parts of PVB particles.

Furthermore, the touch keyboard comprises the following production raw materials in parts by weight: 140 parts of sodium silicate, 20 parts of calcium silicate, 21 parts of silicon dioxide, 13 parts of silicon nitride, 25 parts of magnesium dioxide, 20 parts of zinc oxide, 30 parts of titanium dioxide, 26 parts of silica gel and 10 parts of PVB particles.

A production method of an impact-resistant touch keyboard comprises the following steps:

preparation of first, base layer

1) Dividing sodium silicate into two parts by mass, mixing one part of the sodium silicate with calcium silicate, silicon dioxide, silicon nitride, magnesium dioxide and zinc oxide, adding the mixture into a 5% sodium chloride solution after mixing completely, soaking for 2-3 hours, sterilizing, taking out and draining;

2) grinding the mixture obtained in the step 1 by using grinding equipment, putting the powder into a sealing box after grinding is finished, and introducing alcohol vapor into the sealing box for drying and disinfection;

3) heating the mixture obtained in the step 2 in heating equipment, and stirring the mixture;

4) and cooling the mixture obtained in the step 3 in the molten state, placing the mixture in a forming mold after cooling to the temperature of 320-350 ℃, and pressing the mixture into a required shape and thickness to obtain the base layer.

Preparation of contact layer

1) Mixing the other part of sodium silicate with titanium dioxide, silica gel and PVB particles, adding the mixture into an ethanol solution with the concentration of 25% after complete mixing, soaking for 1-2 hours, taking out after disinfection and draining;

2) heating the mixture obtained in the step 1 in heating equipment, keeping the mixture in full contact in the heating process, and keeping the temperature constant for 30min after heating to 1300-;

3) and cooling the mixture in the molten state obtained in the step 2, placing the mixture in a forming mold after cooling to the temperature of 350-380 ℃, and pressing the mixture into a required shape and thickness to obtain the contact layer.

Third, final forming

1) Coating a silica gel layer between the obtained base layer and the contact layer to bond the base layer and the contact layer, and keeping the base layer and the contact layer completely aligned while bonding;

2) extruding the base layer and the contact layer obtained in the step 1 by using a tablet press to obtain a preformed product;

3) and (3) carrying out ultrasonic cleaning on the preformed product obtained in the step (2), and then toughening to obtain a finished product.

Furthermore, the mesh number of the ground powder in the first step is 120-140 meshes, the drying and sterilizing time is 1-2 hours, and the introducing speed of the alcohol vapor is 25-30 ml/s.

Further, the heating temperature in the first step is kept constant after reaching 1500-.

Further, in the second step, the heating speed is 5-10 ℃/min, the stirring is carried out once every 5min, the stirring time is 10s, and the stirring speed is 40-45 r/min.

Further, the thickness of the silica gel layer in the third step is pressed to 0.1-0.15 mm.

The invention has the beneficial effects that:

1. when the touch keyboard is prepared, the touch keyboard is divided into the base layer module and the contact layer module, when one of the base layer module and the contact layer module is damaged, the touch keyboard can be detached for maintenance or replacement, the whole touch keyboard does not need to be detached, and the manufacturing cost is reduced;

2. when the touch keyboard is prepared, the magnesium dioxide, the zinc oxide and the titanium dioxide are added, so that the deformation rate is reduced, the hardness is increased, meanwhile, the influence rate of the combination of the magnesium dioxide and the zinc oxide obtained through detection is greater than that of the titanium dioxide, and the touch keyboard can be suitable for touch keyboards with various deformation rates and hardnesses according to the actual production adjustment proportion;

3. when the touch keyboard is prepared, the titanium dioxide and the silica gel are added, the titanium dioxide and the silica gel are good shading materials, the effect difference existing between the titanium dioxide and the silica gel is not large through detection, the effect is not like the shading effect achieved by combining the titanium dioxide and the silica gel, and the proportion of the titanium dioxide and the silica gel can be adjusted according to actual needs.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the connection of a base layer and a contact layer according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

An impact-resistant touch keyboard is shown in figure 1 and comprises a base layer 1 and a contact layer 2 arranged on the base layer 1, wherein the base layer 1 is connected with a circuit board, the contact layer 2 is fixed on the base layer 1, and the contact layer 2 is in direct contact with an operator to control normal input of the touch keyboard.

The production raw materials of the touch keyboard comprise sodium silicate, calcium silicate, silicon dioxide, silicon nitride, magnesium dioxide, zinc oxide, titanium dioxide, silica gel and PVB particles.

The touch keyboard comprises the following production raw materials in parts by weight: 120-160 parts of sodium silicate, 15-25 parts of calcium silicate, 18-24 parts of silicon dioxide, 12-15 parts of silicon nitride, 21-28 parts of magnesium dioxide, 15-24 parts of zinc oxide, 24-36 parts of titanium dioxide, 22-30 parts of silica gel and 8-14 parts of PVB particles.

The touch keyboard is preferably prepared from the following raw materials in parts by weight: 140 parts of sodium silicate, 20 parts of calcium silicate, 21 parts of silicon dioxide, 13 parts of silicon nitride, 25 parts of magnesium dioxide, 20 parts of zinc oxide, 30 parts of titanium dioxide, 26 parts of silica gel and 10 parts of PVB particles.

A production method of an impact-resistant touch keyboard comprises the following steps:

preparation of first, base layer

1) Dividing sodium silicate into two parts by mass, mixing one part of the sodium silicate with calcium silicate, silicon dioxide, silicon nitride, magnesium dioxide and zinc oxide, adding the mixture into a 5% sodium chloride solution after mixing completely, soaking for 2-3 hours, sterilizing, taking out and draining;

2) grinding the mixture obtained in the step 1 by using grinding equipment, wherein the ground powder has the mesh number of 120-140 meshes, putting the powder into a sealing box after grinding is finished, and introducing alcohol vapor into the sealing box for drying and sterilizing for 1-2 hours, wherein the introduction speed of the alcohol vapor is 25-30 ml/s;

3) placing the mixture obtained in the step 2 into heating equipment, keeping the temperature constant after the temperature reaches 1500-;

4) and cooling the mixture obtained in the step 3 in the molten state, placing the mixture in a forming mold after cooling to the temperature of 320-350 ℃, and pressing the mixture into a required shape and thickness to obtain the base layer.

Preparation of contact layer

1) Mixing the other part of sodium silicate with titanium dioxide, silica gel and PVB particles, adding the mixture into an ethanol solution with the concentration of 25% after complete mixing, soaking for 1-2 hours, taking out after disinfection and draining;

2) putting the mixture obtained in the step 1 into heating equipment, wherein the heating speed is 5-10 ℃/min, the mixture is kept in full contact in the heating process, the mixture is stirred once every 5min, the stirring time is 10s, the stirring speed is 40-45r/min, and after the mixture is heated to 1300-1340 ℃, the mixture is kept at the constant temperature for 30min and then is naturally cooled;

3) and cooling the mixture in the molten state obtained in the step 2, placing the mixture in a forming mold after cooling to the temperature of 350-380 ℃, and pressing the mixture into a required shape and thickness to obtain the contact layer.

Third, final forming

1) Coating a silica gel layer between the obtained base layer and the contact layer to be bonded, keeping the base layer and the contact layer completely aligned while bonding, and embedding electronic elements such as chips into the base layer and the contact layer to be bonded and fixed during manufacturing;

2) extruding the base layer and the contact layer obtained in the step 1 by using a tablet press until the silica gel layer is laminated to 0.1-0.15mm to obtain a preformed product;

3) and (3) carrying out ultrasonic cleaning on the preformed product obtained in the step (2), and then toughening to obtain a finished product.