Tempered glass flatness control device

Abstract

The utility model relates to the technical field of glass tempering, in particular to a tempered glass flatness control device which comprises a furnace body, an air injection device, a distance measuring assembly, a nozzle control assembly and a control device, an upper plate and a lower plate are arranged in the furnace body, and a channel for conveying glass is formed between the upper plate and the lower plate; the air spraying device is provided with air spraying nozzles for spraying air to the glass on the upper plate and the lower plate; the distance measuring assembly comprises distance measuring devices arranged on the upper plate and / or the lower plate, and the distance measuring devices are arranged between the air nozzles in a penetrating mode. The nozzle control assembly is connected with the air nozzle and used for controlling airflow of the air nozzle. The control device receives a signal of the distance measuring device and sends an instruction to the nozzle control assembly. According to the tempered glass flatness control device, the distance measuring devices are arranged at the upper part and the lower part of the cavity of the tempering furnace, the air pressure at the corresponding position is intelligently adjusted according to the distance measuring result, the distance between glass and a ceramic plate is maintained, glass scratches are reduced, and the glass flatness is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to glass toughening technical field, especially a kind of toughened glass flatness control device. BACKGROUND

[0002] In order to improve the strength of glass, usually use chemical or physical method, form compressive stress on the surface of glass, glass withstands external force first to offset surface stress, thereby improving the carrying capacity, enhance glass wind pressure resistance and impact resistance etc. Glass toughening process due to glass transmission process directly with roller contact, easy to cause glass deformation, affect glass surface flatness. In order to ensure the flatness of glass surface, usually use air float type toughening technology, make glass float in air cushion in heating process, will not contact upper and lower ceramic plate, ensure that glass surface has no roller mark and line.

[0003] Air float type toughening furnace toughening needs to lift glass, transmission in the narrow gap between upper and lower ceramic plate, and the unbalance of upper and lower air pressure control can easily cause glass to be biased up or down, not only produce scratch with ceramic plate, but also easily cause poor glass flatness, and the method for adjusting the scratch and flatness of toughened glass is to adjust the parameters of toughened glass, according to the glass condition, time-consuming and laborious, waste. UTILITY MODEL CONTENTS

[0004] In order to solve the problem that the flatness of glass surface in existing glass toughening process is difficult to ensure, the utility model provides a kind of toughened glass flatness control device for improving the flatness of glass.

[0005] The technical scheme adopted by the utility model to solve its technical problems is:

[0006] A kind of toughened glass flatness control device, comprising:

[0007] Furnace body, the furnace body is equipped with upper plate and lower plate, and the passage for conveying glass is formed between the upper plate and the lower plate;

[0008] Jet device, the jet device is provided with jet nozzle for jetting air to glass on the upper plate and the lower plate;

[0009] Distance measuring assembly, the distance measuring assembly includes distance measuring device arranged on the upper plate and / or the lower plate, and the distance measuring device is arranged between the jet nozzles;

[0010] Nozzle control assembly, the nozzle control assembly is connected with the jet nozzle for controlling the air flow of the jet nozzle;

[0011] Control device, the control device receives the signal of the distance measuring device and issues instructions to the nozzle control assembly.

[0012] Further, the nozzle control assembly comprises a valve controller connected with or integrated with the air jet nozzle.

[0013] Further, the valve controller is arranged one-to-one with the air jet nozzle.

[0014] Further, the control device receives the signal of the distance measuring device and controls the air flow of at least one air jet nozzle around the distance measuring device.

[0015] Further, the control device receives the signal of the distance measuring device and controls the air flow of two air jet nozzles respectively located on both sides of the distance measuring device.

[0016] Further, two air jet nozzles are arranged between two adjacent distance measuring devices.

[0017] Further, the distance measuring device comprises a detection laser and a detection probe.

[0018] Advantages:

[0019] (1) The tempered glass flatness control device of the utility model sets distance measuring devices on the upper and lower tempered furnace cavities, detects the distance between the glass and the ceramic plate in real time, intelligently adjusts the air pressure of the corresponding position according to the distance measuring result, maintains the distance between the glass and the ceramic plate, adjusts the distance between the glass and the ceramic plate, reduces the glass scratch, and improves the glass flatness.

[0020] (2) The timely distance measuring control in the tempering process changes the control mode of the on-site experience judgment by manual operation, improves the yield and quality stability of the glass tempering, reduces the glass amount of the technical parameter loss of the trial furnace adjustment, and saves the glass tempering cost. DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating labor.

[0022] Figure 1 It is the layout principle diagram of the tempered glass flatness control device of the utility model.

[0023] Figure 2 It is the structure diagram of the air jet nozzle and the distance measuring device on the upper plate / lower plate.

[0024] Figure 3 It is the distance measuring principle diagram of the distance measuring device.

[0025] Figure 4Structural schematic diagram of the distance measuring assembly and the nozzle control assembly.

[0026] 1. furnace body, 2. upper plate, 3. lower plate, 4. air jet nozzle, 5. distance measuring assembly, 51. distance measuring device, 6. nozzle control assembly, 7. control device. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0029] Unless specifically stated otherwise, the relative arrangement of components and steps, numerical expressions, and numerical values set forth in the various embodiments described herein are not limiting. It should be understood that the dimensions of the various parts shown in the drawings are not necessarily to scale. Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the specification, where appropriate. In all examples shown and discussed herein, any specific value should be interpreted as merely illustrative and not as a limitation. Thus, other examples of the exemplary embodiments can have different values. It should be noted that like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0030] In the description of the utility model, it is understood that the orientation words such as "front, back, top, bottom, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or positional relationship usually based on the orientation or positional relationship shown in the drawings, just for the convenience of describing the utility model and simplifying the description, in the absence of the opposite statement, these orientation words do not indicate and imply that the device or element indicated must have a particular orientation or be constructed and operated in a particular orientation, therefore it can not be understood as the limitation of the protection scope of the utility model;The orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0031] For the convenience of description, spatial relative terms can be used here, such as "on", "above", "upper surface", "upper", etc., to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "on" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative description used here is interpreted accordingly.

[0032] In addition, it should be noted that the use of "first", "second" and the like to limit parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore can not be understood as the limitation of the protection scope of the utility model.

[0033] A kind of toughened glass flatness control device, such as Figures 1-4 , including furnace body 1, air injection device, ranging assembly 5, nozzle control assembly 6 and control device 7, furnace body 1 is equipped with upper plate 2 and lower plate 3, upper plate 2 and lower plate 3 can be selected but not limited to ceramic plate, the passage for conveying glass is formed between upper plate 2 and lower plate 3;Air injection device is used for air injection nozzle 4 to glass in upper plate 2 and lower plate 3;Ranging assembly 5 includes ranging device 51 arranged in upper plate 2 and / or lower plate 3, ranging device 51 is arranged between air injection nozzle 4;Nozzle control assembly 6 is connected with air injection nozzle 4 for controlling the air flow size of air injection nozzle 4;Control device 7 receives the signal of ranging device 51 and sends instruction to control nozzle control assembly 6.

[0034] Nozzle control assembly 6 includes valve controller connected with air injection nozzle 4 or integrally arranged. As preferred, valve controller is arranged one by one with air injection nozzle 4.

[0035] The control device 7 receives the signal of the distance measuring device 51 and controls the air flow of at least one air jet nozzle 4 around the distance measuring device 51. Preferably, the control device 7 receives the signal of the distance measuring device 51 and controls the air flow of two air jet nozzles 4 respectively located on both sides of the distance measuring device 51. As an embodiment of the utility model, two air jet nozzles 4 are arranged between two adjacent distance measuring devices 51.

[0036] The distance measuring device 51 comprises a detection laser and a detection probe.

[0037] The distance measuring assembly 5 and the control nozzle assembly 6 of the utility model are arranged on or / and the upper side of the furnace cavity ceramic plate, preferably on the same side. The distance measuring assembly 5 comprises a plurality of equidistant or non-equidistant detection probes and detection lasers. The probes measure the distance between the glass in the furnace and the air jet nozzle 4 on or / and the upper side of the ceramic plate through the detection holes on the ceramic plate. The plurality of detection probes are connected with the control center detection block. The control nozzle assembly 6 comprises a plurality of equidistant or non-equidistant valve controllers. By being connected with the control center, the control nozzle assembly 6 controls the air flow of each air jet nozzle 4. The distance measuring assembly 5 is arranged according to the position of the control nozzle assembly 6. One distance measuring probe controls the adjacent air jet nozzles 4 in front and back. The air pipe flow size of each air jet nozzle 4 is controlled by the valve controller signal end controller. When the distance measuring device detects that the distance between the glass and the air jet nozzle 4 is less than the set value, the control center instructs the air jet pipe to spray air flow. The air flow agitates the surrounding gas to adjust the distance of the glass locally.

[0038] As an embodiment of the utility model, as shown in Figure 3 and Figure 4 , a plurality of equidistantly arranged detection probes of two distance measuring assemblies are arranged on the upper and lower sides of the ceramic plate in the furnace. The detection probes are used to detect the distance Dn between the glass and the air jet nozzle 4. The two distance measuring assemblies 5 are connected with the control device 7. The two nozzle control assemblies 6 are connected with the control device 7. A plurality of equidistantly arranged air jet nozzles 4 with valve controllers are arranged on the upper plate 2 and the lower plate 3 and close to the distance measuring hole position. When the glass enters the tempering furnace and is pulled forward by the transmission device, the distance measuring assembly 5 can detect the distance between the glass on the upper side and the lower side and the air jet nozzle 4 of the upper plate 2 or the lower plate 3. When the local distance measurement reaches or approaches the set touch nozzle distance, the control device 7 sends a signal to the corresponding nozzle control assembly 6, instructs the valve controller on the corresponding air jet nozzle 4 to change the air flow, and the air flow agitates the surrounding gas to adjust the touch nozzle of the glass locally.

[0039] The surface of the upper plate 2 or the lower plate 3 in the furnace is arranged with air outlet holes and laser detection holes. The air outlet holes are arranged in multiple rows to form a flat glass floating bed surface.

[0040] The application realizes low-loss controllable glass toughening, so that the glass does not touch the furnace wall surface and does not contact any mechanical device in the toughening process, effectively ensuring the surface quality of the glass.

[0041] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A flatness control apparatus for tempered glass, characterized by: The application relates to a glass furnace, comprising: a furnace body (1) provided with an upper plate (2) and a lower plate (3) in the furnace body (1), and a channel for conveying glass is formed between the upper plate (2) and the lower plate (3); air injection devices, the air injection devices are provided with air injection nozzles (4) for injecting air to the glass on the upper plate (2) and the lower plate (3); a distance measuring assembly (5) comprising distance measuring devices (51) arranged on the upper plate (2) and / or the lower plate (3), and the distance measuring devices (51) are arranged between the air injection nozzles (4); a nozzle control assembly (6) connected with the air injection nozzles (4) for controlling the air flow of the air injection nozzles (4); a control device (7) receiving signals of the distance measuring devices (51) and sending instructions to the nozzle control assembly (6).

2. The flatness control device for toughened glass according to claim 1, wherein: The nozzle control assembly (6) comprises valve controllers connected with or integrated with the air injection nozzles (4).

3. The flatness control device for toughened glass according to claim 2, wherein: The valve controllers are arranged one by one corresponding to the air injection nozzles (4).

4. The flatness control device for toughened glass according to claim 3, wherein: The control device (7) receives signals of the distance measuring devices (51) and controls the air flow of at least one air injection nozzle (4) around the distance measuring device (51).

5. The flatness control device for toughened glass according to claim 2, wherein: The control device (7) receives signals of the distance measuring devices (51) and controls the air flow of two air injection nozzles (4) respectively located on the two sides of the distance measuring device (51).

6. The flatness control device for toughened glass according to claim 3, wherein: Two air injection nozzles (4) are arranged between two adjacent distance measuring devices (51).

7. The flatness control device of any one of claims 1-6, wherein: The distance measuring device (51) comprises a detection laser and a detection probe.

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