CN208022908U - A glass hot bending furnace and curved glass hot bending equipment - Google Patents

Abstract

The utility model relates to a glass makes the field, particularly, relates to a curved stove of glass heat and curved surface glass heat equipment of bending. The utility model provides a curved stove of glass heat, it includes the conveyer belt on base member and the base member, and the conveyer belt drives the glass board and preheats, shaping, annealing and cools off the back in proper order, makes the glass that possesses the curved surface, and its glass strong adaptability to different thickness, and degree of automation is high, has reduced manufacturing cost of enterprise. The utility model also provides a curved surface glass hot bending equipment, it includes controlling means and the curved stove of above-mentioned glass hot bending. The control device is used for controlling, the selection of different production processes which can be switched rapidly is provided for different products, the precision and the stability of the products are guaranteed, in addition, the automation degree is high, the energy consumption of equipment is low, the productivity is high, and the income is increased for enterprises.

Description

A glass hot bending furnace and curved glass hot bending equipment

technical field

The utility model relates to the field of glass manufacturing, in particular to a glass hot bending furnace and curved glass hot bending equipment.

Background technique

Curved glass has the advantages of thinness, transparency and cleanliness, anti-glare, hard and scratch-resistant, and good weather resistance. It can be molded to make multi-shaped appearances. It has special product design, novelty and good texture. It can also add curved edge touch functions. With excellent touch feel and wireless charging function, it can solve the insufficient space for antenna layout and enhance the function of receiving signals, making the product more beautiful and excellent, and the differentiated product design makes consumers more favored.

At present, the domestic mobile phone curved glass cover and curved glass protection sheet are formed by hot bending machines. The hot bending machine in the current industry has high energy consumption, low production capacity, and poor adaptability. The curved glass cover products in the current industry use precision heating tubes for hot bending. Machine forming, protective sheet products are formed by high-frequency heating hot bending machine, and there is no hot bending machine that can fully meet the high-precision requirements of the terminal 3D cover plate and meet the high appearance quality requirements of the 3D curved surface protection sheet. The phenomenon makes customers need to purchase different equipment according to different products to meet product molding, resulting in an increase in the cost of the entire 3D glass manufacturing industry and waste of resources.

Utility model content

The purpose of this utility model is to provide a glass hot bending furnace, which includes a substrate and a conveyor belt on the substrate. Glasses of different thicknesses have strong adaptability and a high degree of automation, which reduces the manufacturing cost of enterprises.

The second object of the present utility model is to provide a curved glass bending equipment, which includes a control device and the above-mentioned glass bending furnace. Controlled by the control device, it provides the choice of different production processes that can be switched quickly for different products, ensuring the accuracy and stability of the product. In addition, its high degree of automation, low equipment energy consumption and high production capacity increase the income of the enterprise.

Embodiments of the utility model are achieved in that:

A glass hot bending furnace, which includes a substrate and a conveyor belt on the substrate;

The conveyor belt passes through the initial station, preheating station, forming station, annealing station and cooling station on the substrate in sequence;

There is a heating device in the preheating station; a forming mold in the forming station; an annealing device in the annealing station; a cooling device in the cooling station.

The conveyor belt drives the glass plate to be preheated, formed, annealed and cooled in sequence to produce curved glass, which is highly adaptable to glass of different thickness and has a high degree of automation, which reduces the manufacturing cost of the enterprise.

In a kind of embodiment of the present utility model:

The preheating station includes a first preheating station, a second preheating station and a third preheating station arranged in sequence away from the initial station.

In a kind of embodiment of the present utility model:

The heating device includes a high-frequency heating device and a preheating heat pipe; the high-frequency heating device is respectively arranged at the first preheating station and the third preheating station; the preheating heat pipe is arranged at the second preheating station.

In a kind of embodiment of the present utility model:

The forming station includes a first forming station and a second forming station arranged in sequence away from the direction of the initial station; the forming mold includes a first forming mold and a second forming mold; the first forming mold is arranged in the first forming station ; The second molding die is located in the second molding station.

In a kind of embodiment of the present utility model:

The first forming mold includes a large plate, a main cylinder, a forming column and a sub-cylinder; the large plate is connected with the main cylinder; the forming column runs through the large plate and is respectively connected with the sub-cylinders; the main cylinder drives the large plate to move in the vertical direction; The forming column moves in the vertical direction.

In a kind of embodiment of the present utility model:

The annealing station includes the first annealing station, the second annealing station and the third annealing station arranged in sequence away from the initial station; the annealing device includes an annealing heating tube; In the second annealing station.

In a kind of embodiment of the present utility model:

The third annealing station is configured to perform annealing processing by means of heat insulation and slow cooling.

In a kind of embodiment of the present utility model:

The cooling station includes the first cooling station, the second cooling station and the third cooling station arranged in sequence away from the initial station direction; the cooling device is connected with the first cooling station, the second cooling station and the third cooling station respectively. Station connection.

In a kind of embodiment of the present utility model:

The cooling device includes a cooling plate cooling device.

A curved glass hot-bending equipment, which includes a control device and the above-mentioned glass hot-bending furnace; the control device is configured to control the work of a conveyor belt, a heating device, a forming mold, an annealing device and a cooling device.

The curved glass hot bending equipment provides the choice of different production processes that can be switched quickly for different products, ensuring the accuracy and stability of the product. In addition, its high degree of automation, low energy consumption and high production capacity increase the income of the enterprise.

The technical solution of the utility model has at least the following beneficial effects:

The utility model provides a glass hot-bending furnace, which comprises a substrate and a conveyor belt on the substrate. The conveyor belt drives a glass plate to perform preheating, molding, annealing and cooling in sequence to obtain curved glass. It has strong adaptability and high degree of automation, which reduces the manufacturing cost of enterprises.

The utility model also provides a curved glass hot-bending equipment, which includes a control device and the above-mentioned glass hot-bending furnace. Controlled by the control device, it provides the choice of different production processes that can be switched quickly for different products, ensuring the accuracy and stability of the product. In addition, its high degree of automation, low equipment energy consumption and high production capacity increase the income of the enterprise.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following drawings will be briefly introduced in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained according to these drawings without creative work.

Fig. 1 is the structural representation of glass hot bending furnace in the utility model embodiment 1;

Figure 2 is a partial enlarged view of II in Figure 1;

Fig. 3 is a partial enlarged view of III in Fig. 1;

Fig. 4 is a partial enlarged view of IV in Fig. 1 .

In the figure: 100-glass bending furnace; 110-substrate; 120-conveyor belt; 121-initial station; 131-first preheating station; 133-second preheating station; 135-third preheating station ; 137-high-frequency heating device; 139-preheating heating tube; 141-first forming station; 143-second forming station; 145-first forming mold; 147-second forming mold; 151-first annealing Station; 153-second annealing station; 155-third annealing station; 157-annealing heat pipe; 161-first cooling station; 163-second cooling station; 165-third cooling station; 167 - Cooling plate cooling device.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In the description of the embodiments of the present utility model, it should be noted that the orientations or positional relationships indicated by the terms "inner", "outer", and "upper" are based on the orientations or positional relationships shown in the accompanying drawings, or the practical The usual orientation or positional relationship of the new product in use is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it cannot be understood as a limitation of the present utility model.

At present, the domestic mobile phone curved glass cover and curved glass protection sheet are formed by hot bending machines. The hot bending machine in the current industry has high energy consumption, low production capacity, and poor adaptability. The curved glass cover products in the current industry use precision heating tubes for hot bending. Machine forming, protective sheet products are formed by high-frequency heating hot bending machine, and there is no hot bending machine that can fully meet the high-precision requirements of the terminal 3D cover plate and meet the high appearance quality requirements of the 3D curved surface protection sheet. The phenomenon makes customers need to purchase different equipment according to different products to meet product molding, resulting in an increase in the cost of the entire 3D glass manufacturing industry and waste of resources.

In view of the deficiencies in the prior art, the following specific implementation methods are provided:

Example 1

Referring to Fig. 1, the figure shows a glass bending furnace 100 provided in this embodiment, which includes a base body 110 and a conveyor belt 120 on the base body 110. The glass with curved surface has strong adaptability to glass of different thickness, and has a high degree of automation, which reduces the manufacturing cost of the enterprise.

The glass hot bending furnace 100 in the present embodiment is specifically constituted like this:

The glass hot bending equipment includes a substrate 110 and a conveyor belt 120 on the substrate 110. The conveyor belt 120 passes through the initial station 121, the preheating station, the forming station, the annealing station and the cooling station on the substrate 110 in sequence. Driven by the drive, the glass plate is heated through the preheating station in turn, then bent and formed through the forming station, and then enters the annealing station to slowly cool down and anneal, and finally cools through the cooling station to complete the hot bending process of the glass.

In order to achieve the above operations, in the glass bending furnace 100, a heating device is provided in the preheating station, a forming mold is provided in the forming station, an annealing device is provided in the annealing station, and a cooling device is provided in the cooling station. The heating device, molding die, annealing device and cooling device are common equipment in the art, and can be adjusted according to actual needs, which will be described in detail below.

Referring to Fig. 2, in the present embodiment, the preheating station includes the first preheating station 131, the second preheating station 133 and the third preheating station 135 arranged in sequence away from the initial station 121 direction, the conveyor belt When 120 is in use, the glass plate is first placed on the initial station 121, and then passes through the first preheating station 131, the second preheating station 133 and the third preheating station 135 in sequence, and is heated at the same time to ensure that the The preset temperature is reached before entering the forming station, which makes the glass soft and easy to process.

In the preheating station, the second preheating station 133 and the third preheating station 135, a heating device is used to heat the glass plate. In this embodiment, the heating device includes a high frequency heating device 137 and a preheating heat pipe 139. Utilize the high-frequency heating device 137 to heat the glass plate, and the temperature can be raised to 800°C in 50-60 seconds, but the temperature stability is poor, with a difference of ±50°C, and the preheating heating tube 139 is used to heat up, and the speed is slow. 120S to 180S can rise to 800°C, but the temperature is stable and can be controlled to ±2°C. In addition, the heating mode of the high-frequency heating device 137 has low energy consumption and fast temperature rise, while the mode of preheating the heating tube 139 has high energy consumption and slow temperature rise.

The current curved glass cover plate requires high precision. The product size after hot bending is within ±0.1mm. The high-frequency heating device is used to generate heat unstable and cannot meet the required precision. However, the use of preheating heating tube 139 can ensure the precision of the formed product but consumes energy High, slow. The thickness of the current curved glass protection sheet is 0.2-0.3mm. Using the heat pipe method to form the protection sheet has high energy consumption and low production capacity, and the appearance quality of the formed product after heating for too long is scalded. Using high-frequency method, the heating is fast and the molding is fast to ensure the appearance. However, due to the rapid heating and cooling, the product is prone to thermal stress concentration, resulting in deformation and warping, which cannot meet the demand. Therefore, in this embodiment, the high-frequency heating device 137 and the preheating heating tube 139 are used as the heating device at the same time, and the heating method is selected according to the specific conditions of the glass plate.

Specifically, in this embodiment, the high-frequency heating device 137 is respectively arranged at the first preheating station 131 and the third preheating station 135, and the preheating heating tube is arranged at the second preheating station 133. It should be noted that, in other specific implementation manners, the above-mentioned heating device may also be arranged in other manners.

Referring to Fig. 3, the forming station includes a first forming station 141 and a second forming station 143 arranged in sequence away from the initial station 121, after the glass plate is heated and softened at the preheating station, the first forming mold is used to Step 145 makes the glass plate hot-bending.

Specifically, in this embodiment, the forming mold includes a first forming die 145 and a second forming die 147, the first forming die 145 is located in the first forming station 141, and the second forming die 147 is located in the second forming station within bit 143. In use, according to the thickness and type of the glass plate to be manufactured, the first forming mold 145 and/or the second forming mold 147 are selectively used for hot bending.

Further, the first forming mold 145 includes a large plate, a main cylinder, a forming column and a sub-cylinder. The large plate is connected with the main cylinder, and the forming column runs through the large plate and is respectively connected with the sub-cylinders. The first molding die 145 can be used to complete two moldings, and the molding steps can be freely controlled. For example, firstly control 4 forming columns to press, and then use the main cylinder to drive the large plate to press; you can also use the large plate to press first, and then 4 forming columns to press, for products with a flat part in the middle, you can use the forming column first Press the plane, and then press the arc of the large plate to ensure the flatness of the product, the product plane will not be deformed, and the size is stable.

The annealing station includes a first annealing station 151 , a second annealing station 153 and a third annealing station 155 arranged in sequence in a direction away from the initial station 121 . After the glass plate is formed, the temperature of the glass plate is slowly lowered through the first annealing station 151, the second annealing station 153 and the third annealing station 155, releasing the internal stress caused by the forming, and avoiding the impact of a sudden temperature drop on the glass plate caused by deformation or cracking.

The annealing device includes an annealing heat pipe 157, which is arranged in the first annealing station 151 and the second annealing station, to keep the temperature slowly lowered and release the stress. Furthermore, the third annealing station 155 is configured as the last annealing procedure before cooling by means of heat insulation and full cooling. Instead of installing heat pipes, the mold continuously moves to the third annealing station 155, effectively ensuring The temperature of the glass plate is used for annealing, which ensures the annealing effect of the glass plate while reducing energy consumption.

With reference to Fig. 4, cooling station comprises the first cooling station 161, the second cooling station 163 and the 3rd cooling station 165 that are arranged successively away from initial station 121 direction, and cooling device is respectively connected with first cooling station 161, The second cooling station 163 is connected to the third cooling station 165. After the glass plate is shaped and annealed, it is directly cooled by a cooling device to complete the hot bending process.

Due to the annealing at the annealing station, the temperature of the glass plate drops and the stress is released. In this embodiment, the cooling device includes a cooling plate cooling device 167 . The cooling plate cooling device 167 uses the waterway connected to the plate body to cool down, circulates cooling water in the waterway, and presses the mold through the plate body, thereby cooling the mold and completing the hot bending process. It should be noted that, in other specific implementation manners, the above-mentioned cooling device may also be other equipment.

In the glass bending furnace 100 in this embodiment, driven by the conveyor belt 120, the glass plate is heated sequentially through the preheating station, then bent and formed through the forming station, and then enters the annealing station to slowly cool down and anneal, and finally passes through the cooling process. The station is cooled to complete the hot bending process of the glass. Moreover, according to the different thicknesses and different uses of glass plates, each station is selectively processed to obtain better processing effects and ensure product quality. The glass bending furnace 100 has strong adaptability to glass of different thicknesses, good product quality and high degree of automation, which reduces the manufacturing cost of the enterprise.

Example 2

This embodiment provides a curved glass bending equipment, which includes a control device and a glass bending furnace 100 in Embodiment 1. The glass hot bending equipment includes a substrate 110 and a conveyor belt 120 on the substrate 110. The conveyor belt 120 passes through the initial station 121, the preheating station, the forming station, the annealing station and the cooling station on the substrate 110 in sequence, that is, the Driven by the drive, the glass plate is heated through the preheating station in turn, then bent and formed through the forming station, and then enters the annealing station to slowly cool down and anneal, and finally cools through the cooling station to complete the hot bending process of the glass.

The control device is a common device in the field, and the common control device includes DSP (digital signal processing), CPLD (Complex Programmable Logic Device), FPGA (Field-Programmable Gate Array), single-chip microcomputer, etc. In this embodiment, PLC is selected as the control device, and two systems are preset in the PLC to process the curved glass cover plate and the curved glass protection sheet respectively.

When producing curved glass cover plates, the curved glass cover plates must have high precision and be within ±0.1mm of the product size after bending. Therefore, driven by the conveyor belt 120, the initial station 121 passes through the first preheating station 131 and the second preheating station. The heating station 133 and the third preheating station 135, the high-frequency heating device 137 and the preheating heating tube 139 work simultaneously for heating, and after the heating is completed, a part is formed at the first molding station 141 by using the first molding die 145, and then In the second forming station 143 , the hot bending forming is completed by using the second forming mold 147 . Then pass through the first annealing station 151, the second annealing station 153 and the third annealing station 155 successively to anneal, and finally pass through the first cooling station 161, the second cooling station 163 and the third cooling station 165 for cooling Finish processing. Using the cooperation of PLC and glass bending furnace 100, the product can be uniformly preheated, formed stably and annealed and cooled at a uniform speed, ensuring the stability and precision of the formed product.

When producing the curved glass protection sheet, since its thickness is 0.2-0.3mm, driven by the conveyor belt 120, it passes through the first preheating station 131, the second preheating station 133 and the third preheating station 131 successively from the initial station 121 Preheating station 135, high-frequency heating device 137 in the first preheating station 131 and the third preheating station 135 works, and the heating tube of the second preheating station 133 does not work, after preheating is completed, enter the first A forming station 141 is used to press and form the glass plate, while passing through the second forming station 143 without operation, that is, when producing curved glass protection sheets, the second forming station 143 plays an annealing role. Then successively through the first annealing station 151, the second annealing station 153 and the third annealing station 155 for annealing, and finally through the first cooling station 161, the second cooling station 163 and the third cooling station 165 for cooling Finish processing. The cooperation of PLC and glass bending furnace 100 ensures that the product will not be deformed or warped after forming.

It should be noted that, in other specific embodiments, according to the different purposes and thicknesses of the glass plates to be produced, other systems can also be preset in the PLC to adapt to the production of different types of curved glass.

The curved glass hot bending equipment in this embodiment provides the choice of different production processes that can be quickly switched for different products, ensuring the accuracy and stability of the product. In addition, it has a high degree of automation, low equipment energy consumption and high production capacity. Businesses increase revenue.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (8)

1. a kind of glass bending furnace, it is characterised in that：

The glass bending furnace includes the conveyer belt on matrix and described matrix；

The conveyer belt passes through initial station, preheating station, shaping station, annealing station and bosher in described matrix successively Position；

Heating device is equipped in the preheating station；Molding die is equipped in the shaping station；It is equipped in the annealing station Annealing device；Cooling device is equipped in the cooling station；

The shaping station includes far from the first shaping station set gradually on the initial station direction and the second molding work Position；The molding die includes the first molding die and the second molding die；First molding die is set to described the first one-tenth In type station；Second molding die is set in second shaping station；

First molding die includes big plate, master cylinder, shaping column and sub- cylinder；The big plate is connect with the master cylinder； The shaping column is through the big plate and is connect respectively with the sub- cylinder；The master cylinder drives the big plate in vertical direction Upper movement；The sub- cylinder drives the shaping column to move in the vertical direction.

2. a kind of glass bending furnace according to claim 1, it is characterised in that：

The preheating station includes far from the first preheating station, the second preheating station set gradually on the initial station direction With third preheating station.

3. a kind of glass bending furnace according to claim 2, it is characterised in that：

The heating device includes thermatron and preheating heat-generating pipe；The thermatron is respectively arranged on described first Preheating station and third preheating station；The preheating heat-generating pipe is set to second preheating station.

4. a kind of glass bending furnace according to claim 1, it is characterised in that：

The annealing station includes far from the first annealing station, the second annealing station set gradually on the initial station direction With third annealing station；The annealing device includes annealing heat-generating pipe；The annealing heat-generating pipe is set to the first annealing station In the second annealing station.

5. a kind of glass bending furnace according to claim 4, it is characterised in that：

The third annealing station is configured to use heat-insulated slow cooling method and carries out annealing processing.

6. a kind of glass bending furnace according to claim 1, it is characterised in that：

The cooling station includes far from the first cooling station, the second cooling station set gradually on the initial station direction With third cooling station；The cooling device respectively with first cooling station, the second cooling station and third cooling station Connection.

7. a kind of glass bending furnace according to claim 6, it is characterised in that：

The cooling device includes coldplate heat sink.

8. a kind of bend glass hot bending equipment, it is characterised in that：

The bend glass hot bending equipment includes the glass bending described in any one in control device and the claims 1-7 Stove；The control device is configured to control the conveyer belt, the heating device, the molding die, the annealing device With the work of the cooling device.