Glass toughening system
By designing a fiberglass tempering system including a rack, glass basket, tempering furnace, temperature regulation furnace and drive control mechanism, the adverse problems caused by heat loss and collision during the tempering process of ultra-thin glass are solved, and a higher yield rate and stability are achieved.
Patent Information
- Application Number
- CN202420761602.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-04-12
AI Technical Summary
During the process of tempering ultra-thin glass, there is heat loss and temperature difference when the glass sheet moves between the furnace bodies, resulting in unstable glass reinforcement process. The glass sheet is prone to collide with the fixture during lifting and lowering, causing mass defects or breakage, and reducing the yield rate of ultra-thin glass.
A glass tempering system is designed, including a rack, glass basket, tempering furnace, temperature regulation furnace and drive control mechanism. By laying a temperature adjustment furnace and a tempering furnace in the vertical direction, keeping the glass basket stand still, and using the driving control mechanism to move the temperature adjustment furnace and a tempering furnace, eliminating the collision problem when the glass sheet moves, and improving the thermal energy utilization rate and reducing adverse problems caused by temperature difference through the entire closed preheating, tempering and cooling process.
By eliminating the collision and temperature difference between the glass sheet and the glass basket, the yield of ultra-thin glass is significantly improved, ensuring the stability of the fiberglass and the uniformity of the temperature zone.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of glass tempering technology, in particular to a glass tempering system. Background Art
[0002] UTG (Ultra-Thin Glass) refers to glass with a thickness of 0.1-1.2mm. According to its thickness, it can be divided into flat glass with a thickness greater than 1mm and folding glass with a thickness less than 0.1mm and can be bent. In particular, for folding glass with a thickness of 0.03-0.125mm, due to its foldable characteristics, it can meet the display requirements of smart folding screen devices. In order to improve the screen strength of smart folding screen devices, during the processing of folding glass, the formed glass sheets need to be chemically strengthened at a high temperature of about 500°C. Specifically, the glass sheets are placed in a tempering furnace so that other alkali metal ions in the furnace water react with the Na+ ions on the surface of the glass. + or K + Exchange occurs, and an ion exchange layer is formed on the surface of the glass sheet. When the glass sheet is cooled to room temperature, the glass is in a state where the inner layer is under tension and the outer layer is under compression, thereby achieving the purpose of improving the strength of the glass sheet and extending its service life.
[0003] At present, the tempering system in the industry is mainly designed for ordinary glass with a thickness of 0.3-2mm. This type of tempering system usually lays out the preheating furnace, tempering furnace, slow cooling furnace and other equipment, and uses a mobile device to send the tempered glass into each furnace for processing one by one. When the above-mentioned tempering system is used to process ultra-thin glass for folding screens, there is heat loss when the glass sheet moves between the furnaces, and a temperature difference occurs on the surface of the glass sheet, making the glass strengthening process unstable, resulting in poor surface quality of the glass sheet; and in the process of feeding the glass sheet into each furnace, the glass sheet is easily collided with the fixed frame due to vibration when it is lifted and lowered many times, which causes quality defects or even breakage of the glass sheet, thereby reducing the yield rate of ultra-thin glass. Utility Model Content
[0004] Based on this, it is necessary to provide a glass tempering system that can improve the yield rate of ultra-thin glass in order to address the above-mentioned shortcomings.
[0005] A glass tempering system comprises a frame with a tempering operation space formed therein, a glass basket accommodated in the tempering operation space, a tempering furnace, a temperature regulating furnace and a driving control mechanism;
[0006] The glass basket is suspended and connected to the top of the frame and is used to load the glass sheets to be processed;
[0007] The tempering furnace is located below the glass basket and can be raised and lowered relative to the frame so that the glass sheet can enter or leave the furnace space of the tempering furnace;
[0008] The temperature regulating furnace is located above the glass basket and can be raised and lowered relative to the frame to allow the glass sheet to enter or leave the furnace space of the temperature regulating furnace;
[0009] The drive control mechanism controls the temperature regulating furnace to descend and cover the glass basket, so that the temperature regulating furnace preheats the glass piece; the drive control mechanism controls the temperature regulating furnace and the tempering furnace to rise synchronously, so that the glass piece contacts the furnace water in the tempering furnace and is tempered; the drive control mechanism controls the temperature regulating furnace and the tempering furnace to descend synchronously, so that the temperature regulating furnace covers the glass basket and cools down the glass piece.
[0010] In one embodiment, a heating mechanism and a cooling mechanism are provided in the temperature regulating furnace, a first furnace opening and a first furnace door installed at the first furnace opening and openable and closable are provided at the bottom of the temperature regulating furnace, a second furnace opening and a second furnace door installed at the second furnace opening and openable and closable are provided at the top of the tempering furnace, and the glass tempering system further includes a controller electrically connected to the heating device of the tempering furnace, the heating mechanism and the cooling mechanism of the temperature regulating furnace, the driving control mechanism, the opening and closing control mechanism of the first furnace door, and the opening and closing control mechanism of the second furnace door, respectively.
[0011] In one embodiment, the frame includes a top plate, a plurality of support columns located below the top plate and fixedly connected to the top plate and arranged in parallel and spaced apart, and a bottom receiving member located at the bottom of each support column and fixedly connected to each support column. The top plate, the plurality of support columns and the bottom receiving member together form the tempered working space, and a hook for hanging the glass basket is fixed to the lower surface of the top plate.
[0012] In one of the embodiments, the drive control mechanism includes a drive unit disposed at least on one side of the frame.
[0013] In one embodiment, the driving unit includes a screw rod extending along the height direction of the frame and fixedly connected to the top plate and the bottom receiving member respectively, a first bracket mounted on the screw rod and fixedly connected to the outer wall of the temperature regulating furnace, a first nut fixed to the first bracket and threadedly matched with the screw rod, a first driving motor fixed to the first bracket and used to drive the first nut and the first bracket to rise and fall along the screw rod, a second bracket located below the first bracket and fixedly connected to the outer wall of the tempering furnace, a second nut fixed to the second bracket and threadedly matched with the screw rod, and a second driving motor fixed to the second bracket and used to drive the second nut and the second bracket to rise and fall along the screw rod, and the first driving motor and the second driving motor are electrically connected to the controller respectively.
[0014] In one embodiment, the drive unit also includes a first chain installed between the output shaft of the first drive motor and the first nut, and a second chain installed between the output shaft of the second drive motor and the second nut. The outer surface of the output shaft of the first drive motor and the outer surface of the first nut are provided with first sprockets engaged with the first chain, and the outer surface of the output shaft of the second drive motor and the outer surface of the second nut are provided with second sprockets engaged with the second chain.
[0015] In one of the embodiments, the driving unit further includes two guide shafts which are arranged opposite to each other on both sides of the screw rod and extend along the height direction of the frame. The guide shafts pass through the first bracket and the second bracket in sequence and are fixedly connected to the top plate and the bottom receiving member respectively.
[0016] In one embodiment, the glass basket includes a mother basket and a plurality of sub-baskets, the top of the mother basket is provided with at least one hanging ring which can be hung on a hook, a plurality of receiving positions for inserting the sub-baskets are formed in the mother basket, and a plurality of glass sheet inserting positions for inserting glass sheets are provided in the sub-baskets.
[0017] In one of the embodiments, an ion blower is further provided on the frame, and an air outlet end of the ion blower faces the glass basket.
[0018] The implementation of the glass tempering system of the utility model has at least the following beneficial effects:
[0019] 1) The temperature regulating furnace and the tempering furnace are arranged in the vertical direction. During the tempering operation, the glass basket loaded with glass pieces remains stationary. By moving the temperature regulating furnace and the tempering furnace, the product defect problem caused by the collision between the glass pieces and the glass basket when the glass pieces move is eliminated, thereby improving the yield rate of the ultra-thin glass tempering operation.
[0020] 2) The product is fully sealed during the preheating, tempering and cooling process, and the utilization rate of heat energy and potassium salt is greatly improved, which can reduce product defects caused by temperature differences on the glass surface, ensure the stable operation of the ultra-thin glass tempering process and uniform temperature zone, which is conducive to improving the yield rate of ultra-thin glass tempering. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a structural schematic diagram of a glass tempering system in one embodiment of the utility model;
[0022] Figure 2 It is a front view of a glass tempering system in one embodiment of the utility model;
[0023] Figure 3 A side view of a glass tempering system in one embodiment of the utility model;
[0024] Figure 4This is a structural schematic diagram of a glass basket in one embodiment of the utility model;
[0025] Figure 5 for Figure 4 A schematic diagram of a partially enlarged structure of part A in the illustrated embodiment;
[0026] Figure 6 The present invention is a flow chart of a glass tempering method in one embodiment of the present invention. DETAILED DESCRIPTION
[0027] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0028] Please combine Figure 1-3 The utility model discloses a glass tempering system capable of improving the yield rate of ultra-thin glass. The glass tempering system comprises a frame 100 in which a tempering operation space is formed, a glass basket 200, a tempering furnace 300, a temperature regulating furnace 400 and a driving control mechanism 500 contained in the tempering operation space, wherein the glass basket 200 is suspended in the middle of the tempering operation space, the temperature regulating furnace 400 is located above the glass basket 200 and is used for preheating and slowly cooling the glass pieces in the glass basket 200; the tempering furnace 300 is located below the glass basket 200 and is used for containing high-temperature molten salt (furnace water) to chemically strengthen the glass pieces entering the furnace space and immersed in the high-temperature molten salt; the driving control mechanism 500 is fixed on the frame 100 and is used for driving and controlling the lifting and lowering of the tempering furnace 300 and the temperature regulating furnace 400 to realize the switching of each process in the strengthening operation.
[0029] Specifically, the glass basket 200 is suspended and connected to the top of the frame 100 and is used to load the glass pieces to be processed. The tempering furnace 300 is located below the glass basket 200 and can be lifted and lowered relative to the frame 100 so that the glass pieces enter or leave the furnace space of the tempering furnace 300. The temperature regulating furnace 400 is located above the glass basket 200 and can be lifted and lowered relative to the frame 100 so that the glass pieces enter or leave the furnace space of the temperature regulating furnace 400. The driving control mechanism 500 controls the temperature regulating furnace 400 to descend and cover the glass basket 200, so that the temperature regulating furnace 400 preheats the glass pieces; the driving control mechanism 500 controls the temperature regulating furnace 400 and the tempering furnace 300 to rise synchronously, so that the glass pieces contact the furnace water in the tempering furnace 300 and are tempered; the driving control mechanism 500 controls the temperature regulating furnace 400 and the tempering furnace 300 to descend synchronously, so that the temperature regulating furnace 400 covers the glass basket 200 and cools the glass pieces. In this embodiment, a heating mechanism and a cooling mechanism are provided in the temperature regulating furnace 400, the heating mechanism can be an electric heating pipe or an electric heating wire, the cooling mechanism includes a cold water pipe arranged in the temperature regulating furnace 400 and used to access cooling water and a cold water valve used to control the on and off of the cold water pipe, the bottom of the temperature regulating furnace 400 is provided with a first furnace opening and a first furnace door installed at the first furnace opening and can be opened and closed, the top of the tempering furnace 300 is provided with a second furnace opening and a second furnace door installed at the second furnace opening and can be opened and closed, and the glass tempering system also includes a controller electrically connected to the heating device of the tempering furnace 300, the heating mechanism and the cooling mechanism (cold water valve) of the temperature regulating furnace 400, the drive control mechanism 500, the opening and closing control mechanism of the first furnace door, and the opening and closing control mechanism of the second furnace door. Preferably, the controller can be a PLC controller.
[0030] During the operation of the glass tempering system, after the glass pieces are loaded into the glass basket 200, the controller first controls the heating mechanism of the temperature regulating furnace 400 to operate so that the furnace temperature of the temperature regulating furnace 400 rises to a preset temperature. Subsequently, the controller controls the opening and closing control mechanism of the first furnace door to operate to open the first furnace door. At the same time, the controller controls the driving control mechanism 500 to operate so that the temperature regulating furnace 400 is lowered in height until the bottom of the temperature regulating furnace 400 abuts against the top of the tempering furnace 300. During this process, the second furnace door of the tempering furnace 300 is in a closed state. In this way, the temperature regulating furnace 400 and the second furnace door together form a closed space surrounding the glass basket 200, and the glass pieces in the glass basket 200 are preheated in the closed space for a specified time.
[0031] When the preheating of the glass piece is completed, the controller controls the opening and closing control mechanism of the second furnace door to open the second furnace door. At the same time, the controller controls the driving control mechanism 500 to make the temperature regulating furnace 400 and the tempering furnace 300 rise synchronously until the tempering furnace 300 moves to the point where the glass piece in the glass basket 200 is completely immersed in the furnace water. Then, the controller controls the opening and closing control mechanism of the first furnace door and the opening and closing control mechanism of the second furnace door to close the first furnace door and the second furnace door, and controls the heating mechanism in the temperature regulating furnace 400 to stop heating. In this way, the glass piece in the glass basket 200 is immersed in the furnace water of the tempering furnace 300 and is continuously tempered at 500° C. for a preset time until a stable ion exchange layer is formed on the surface of the glass piece.
[0032] After the glass sheet is tempered for a preset time, the tempering operation is completed, and the controller controls the opening and closing control mechanism of the first furnace door and the opening and closing control mechanism of the second furnace door to operate so that the first furnace door and the second furnace door are opened. At the same time, the controller controls the cold water valve of the cooling mechanism to open and introduce cooling water into the cold water pipe. The controller also controls the driving control mechanism 500 to operate so that the temperature regulating furnace 400 and the tempering furnace 300 are synchronously lowered, so that the glass sheet leaves the tempering furnace 300 and enters the temperature regulating furnace 400. When the glass sheet completely enters the temperature regulating furnace 400, the controller controls the opening and closing control mechanism of the first furnace door and the opening and closing control mechanism of the second furnace door to operate so that the first furnace door and the second furnace door are closed. The glass sheet continues to slowly cool in the temperature regulating furnace 400 for a preset time, and the controller controls the opening and closing control mechanism of the first furnace door to operate again to open the first furnace door, and the driving control mechanism 500 controls the temperature regulating furnace 400 to rise, so that the glass sheet in the glass basket 200 is exposed, so that the cooled glass sheet can be removed.
[0033] It should be noted that, since the second time the glass piece enters the temperature regulating furnace 400 is for implementing a slow cooling process, in order to ensure that the temperature of the glass piece gradually decreases, the temperature of the cooling water may be gradually reduced so that the temperature of the glass piece slowly decreases. In other embodiments, the heating mechanism and the cooling mechanism in the temperature regulating furnace 400 may be the same temperature regulating mechanism, and the furnace temperature in the temperature regulating furnace 400 may be adjusted by adjusting the temperature of the temperature regulating mechanism to achieve preheating and slow cooling of the glass piece.
[0034] In one embodiment, the frame 100 includes a top plate 110, a plurality of support columns 120 located below the top plate 110 and fixedly connected to the top plate 110 and arranged in parallel and spaced apart, and a bottom receiving member located at the bottom of each support column 120 and fixedly connected to each support column 120. The top plate 110, the plurality of support columns 120, and the bottom receiving member together form a tempered working space, and a hook 130 for hanging a glass basket 200 is fixed on the lower surface of the top plate 110. Further, the bottom receiving member of this embodiment includes two transverse square tubes 140 arranged oppositely and fixedly connected to the bottoms of two support columns 120, and two longitudinal connecting bars 150 arranged oppositely and respectively straddled and fixed on the two transverse square tubes 140. The longitudinal connecting bars 150 are I-beams. In this way, the mechanical strength of the frame 100 is ensured while reducing the overall weight of the frame 100. In addition, in the present embodiment, the hook 130 passes through the top of the temperature regulating furnace 400, and the bottom of the hook 130 is suspended below the temperature regulating furnace 400, and a heat preservation device is provided at the joint portion between the hook 130 and the temperature regulating furnace 400 to prevent the heat in the temperature regulating furnace 400 from being lost through the gap between the joint portion between the hook 130 and the temperature regulating furnace 400, thereby improving the reliability of the furnace temperature control of the temperature regulating furnace 400 and improving the heat utilization rate.
[0035] In one embodiment, the drive control mechanism 500 includes a drive unit disposed at least on one side of the frame 100. Preferably, a drive unit is disposed on each of two opposite sides of the frame 100, so that the forces on both sides of the temperature regulating furnace 400 and the tempering furnace 300 are uniform, and the shaking of the temperature regulating furnace 400 and the tempering furnace 300 caused by the uneven forces on the temperature regulating furnace 400 and the tempering furnace 300 can be avoided. In particular, the glass sheet can be prevented from colliding with the glass basket when impacted by furnace water, so as to reduce the damage of the ultra-thin glass.
[0036] In one embodiment, the driving unit includes a screw rod 510 extending along the height direction of the frame 100 and fixedly connected to the top plate 110 and the bottom receiving member respectively, a first bracket 520 sleeved on the screw rod 510 and fixedly connected to the outer wall of the temperature regulating furnace 400, a first nut 530 fixed on the first bracket 520 and threadedly matched with the screw rod 510, a first driving motor 540 fixed on the first bracket 520 and used to drive the first nut 530 and the first bracket 520 to rise and fall along the screw rod 510, a second bracket 550 located below the first bracket 520 and fixedly connected to the outer wall of the tempering furnace 300, a second nut 560 fixed on the second bracket 550 and threadedly matched with the screw rod 510, and a second driving motor 570 fixed on the second bracket 550 and used to drive the second nut 560 and the second bracket 550 to rise and fall along the screw rod 510, and the first driving motor 540 and the second driving motor 570 are electrically connected to the controller respectively. In this way, in the process of controlling the temperature regulating furnace 400 and the tempering furnace 300 to rise and fall, the controller can control the first drive motor 540 and the second drive motor 570 to work respectively, and the first drive motor 540 will drive the first nut 530 and the screw rod 510 to rotate relative to each other. Since the first nut 530 and the screw rod 510 are threadedly matched and the screw rod 510 is fixed on the frame 100, when the first drive motor 540 drives the first nut 530 to rotate relative to the screw rod 510, the first nut 530 will rise or fall along the screw rod 510, thereby realizing the synchronous rise and fall of the first bracket 520 and the temperature regulating furnace 400. Similarly, the principle that the second drive motor 570 drives the second nut 560 and the second bracket 550 to rise and fall relative to the screw rod 510 is the same as the principle that the first drive motor 540 drives the first nut 530 and the first bracket 520 to rise and fall relative to the screw rod 510, and will not be repeated here.
[0037] Furthermore, in this embodiment, the driving unit further includes a first chain 541 straddled between the output shaft of the first driving motor 540 and the first nut 530, and a second chain 571 straddled between the output shaft of the second driving motor 570 and the second nut 560. The outer surface of the output shaft of the first driving motor 540 and the outer surface of the first nut 530 are provided with a first chain tooth engaged with the first chain 541, and the outer surface of the output shaft of the second driving motor 570 and the outer surface of the second nut 560 are provided with a second chain tooth engaged with the second chain 571. In other words, a chain transmission is adopted between the first driving motor 540 and the first nut 530, and a chain transmission is adopted between the second driving motor 570 and the second nut 560. The chain transmission has the advantages of no slip, high transmission efficiency, small radial pressure acting on the shaft, compact structure, reliable operation, low installation precision requirement, low cost, etc., which ensures the reliability of position adjustment of the temperature regulating furnace 400 and the tempering furnace 300.
[0038] In order to improve the stability of the lifting operation of the temperature regulating furnace 400 and the tempering furnace 300, in one embodiment, the driving unit also includes two guide shafts 580 arranged opposite to each other on both sides of the screw rod 510 and extending along the height direction of the frame 100. The guide shafts 580 are sequentially passed through the first bracket 520 and the second bracket 550 and are fixedly connected to the top plate 110 and the bottom receiving member respectively. By arranging the guide shafts 580 on both sides of the screw rod 510, the lifting path of the temperature regulating furnace 400 and the tempering furnace 300 is limited, which can prevent the temperature regulating furnace 400 and the tempering furnace 300 from shaking during the lifting process, avoid the problem of ultra-thin glass being scratched or damaged due to the collision of the glass sheet and the glass basket, so as to improve the yield rate of the ultra-thin glass tempering operation.
[0039] In another embodiment, the driving unit includes a first cylinder or electric cylinder fixed on the frame 100 and used to drive the temperature regulating furnace 400 to rise and fall, and a second cylinder or electric cylinder fixed on the frame 100 and used to drive the tempering furnace 300 to rise and fall. Similarly, in order to improve the stability of the temperature regulating furnace 400 and the tempering furnace 300 in rising and falling, guide columns for limiting the rising and falling paths of the temperature regulating furnace 400 and the tempering furnace 300 can also be set on the sides of the temperature regulating furnace 400 and the tempering furnace 300 to reduce the impact of furnace water on the glass pieces, thereby causing the glass pieces to collide with the glass basket. In other embodiments, other lifting drive devices commonly available on the market can also be selected to achieve the rising and falling of the temperature regulating furnace 400 and the tempering furnace 300, which will not be repeated here.
[0040] Please combine Figure 1 as well as Figure 4-5 The glass basket 200 includes a mother basket 210 and a plurality of sub-baskets 220. The top of the mother basket 210 is provided with at least one hanging ring 211 which can be hung on a hook. The mother basket 210 is formed with a plurality of receiving positions 212 for inserting the sub-baskets 220. The sub-baskets 220 are provided with a plurality of glass piece inserting positions 221 for inserting glass pieces. Specifically, the mother basket 210 includes a grid-like base frame 213 formed by a plurality of horizontal rods fixedly connected, a top frame 214 located above the grid-like base frame 213 and arranged parallel to the grid-like base frame 213 and composed of a plurality of parallel horizontal rods, and a plurality of vertical frames 215 located between the grid-like base frame 213 and the top frame 214 and vertically fixed to the grid-like base frame 213 and the top frame 214 respectively. The vertical frames 215 are grid-like structures formed by a plurality of vertical rods fixedly connected. At least one layer of partition frames 216 having the same structure as the grid-like base frame 213 is also provided between the grid-like base frame 213 and the top frame 214. A hanging ring 211 is fixed on the top frame 214. In this way, the partition frames 216 and the plurality of vertical frames 215 divide the area between the grid-like base frame 213 and the top frame 214 into a plurality of receiving positions 212, so that a plurality of sub-baskets 220 can be loaded into the mother basket 210 at one time.
[0041] Furthermore, the sub-basket 220 includes two side panels 222 arranged opposite to each other, four support rods 223 distributed along a trapezoidal path between the two side panels 222 and respectively fixedly connected to the two side panels 222, the four support rods 223 enclose an insertion space for inserting glass sheets, a connecting frame 224 is respectively provided on two opposite outer sides of the insertion space between the two side panels 222, and the two sides of the connecting frame 224 are respectively fixedly connected to the two side panels 222. In this embodiment, a plurality of partition plates 225 are provided at intervals along the length direction of each support rod 223, and the two sides of the partition plates 225 are respectively tapered structures to reduce the difficulty of inserting glass sheets, and an insertion position 221 for inserting a glass sheet is formed between two adjacent partition plates 225 to achieve the limitation of the position of the glass sheet. Preferably, in this embodiment, 50 glass sheets can be inserted into a single sub-basket 220 at a time, and 8 receiving positions 212 are formed in the mother basket 210. In this way, 400 ultra-thin glasses can be loaded into the glass basket 200 at a time, thereby improving the efficiency of tempering glass sheets. In other embodiments, a plurality of slots can be directly provided on each support rod 223, each slot providing a plug-in position for embedding a glass sheet, and the two opposite inner side walls of the slot are respectively conical surfaces, and the width of the middle of the slot is smaller than the width of the edge of the slot, so as to insert the glass sheet and realize the limit of the glass sheet.
[0042] In addition, the frame 100 is also provided with an ion fan, and the air outlet of the ion fan is directed toward the glass basket 200, so that impurities on the surface of the glass sheet can be taken away in time to improve the cleanliness of the surface of the glass sheet and enhance the tempering effect of the glass sheet.
[0043] In this embodiment, the dimensions of the rack 100 are 2.5 m (length) x 2.5 m (width) x 3.2 m (height), and the weight of the entire glass tempering system is 4.5 tons, and the ground weighing is 720 kg / m 2 The inner clearance of the tempering furnace 300 is 1.02mx0.72mx0.65m, and the size of the mother basket 210 is 0.9m (length) x0.6m (width) x0.45m (height). The gap between the inner wall of the furnace and the glass basket 200 is greatly reduced, which is beneficial to the overall volume and floor area of the system, breaking the restrictions of the site and floor.
[0044] See also Figure 6 The utility model also discloses an operating method of the glass tempering system, that is, a glass tempering method, which specifically includes the following steps:
[0045] Separate the tempering furnace from the temperature regulating furnace, and hang the glass basket containing the glass sheets between the tempering furnace and the temperature regulating furnace;
[0046] The temperature regulating furnace is lowered to abut against the top of the tempering furnace, and the temperature regulating furnace is used to preheat the glass sheet;
[0047] The temperature regulating furnace and the tempering furnace are raised synchronously, so that the glass piece is immersed in the furnace water of the tempering furnace to temper the glass piece;
[0048] After tempering, the temperature regulating furnace and the tempering furnace are lowered synchronously, so that the glass sheet leaves the furnace water and enters the temperature regulating furnace for slow cooling;
[0049] After the glass pieces have cooled, the temperature regulating furnace is raised and the glass basket is removed.
[0050] For details, please contact Figure 1-3 as well as Figure 6 During the glass tempering operation, after the glass pieces are loaded into the glass basket 200, the controller first controls the heating mechanism of the temperature regulating furnace 400 to operate so that the temperature of the temperature regulating furnace 400 rises to a preset temperature. Subsequently, the controller controls the opening and closing control mechanism of the first furnace door to operate to open the first furnace door. At the same time, the controller controls the driving control mechanism 500 to operate so that the temperature regulating furnace 400 is lowered in height until the bottom of the temperature regulating furnace 400 abuts against the top of the tempering furnace 300. During this process, the second furnace door of the tempering furnace 300 is in a closed state. In this way, the temperature regulating furnace 400 and the second furnace door together form a closed space surrounding the glass basket 200, and the glass pieces in the glass basket 200 are preheated in the closed space for a specified time.
[0051] When the preheating of the glass piece is completed, the controller controls the opening and closing control mechanism of the second furnace door to open the second furnace door. At the same time, the controller controls the driving control mechanism 500 to make the temperature regulating furnace 400 and the tempering furnace 300 rise synchronously until the tempering furnace 300 moves to the point where the glass piece in the glass basket 200 is completely immersed in the furnace water. Then, the controller controls the opening and closing control mechanism of the first furnace door and the opening and closing control mechanism of the second furnace door to close the first furnace door and the second furnace door, and controls the heating mechanism in the temperature regulating furnace 400 to stop heating. In this way, the glass piece in the glass basket 200 is immersed in the furnace water of the tempering furnace 300 and is continuously tempered at 500° C. for a preset time until a stable ion exchange layer is formed on the surface of the glass piece.
[0052] After the glass sheet is tempered for a preset time, the tempering operation is completed, and the controller controls the opening and closing control mechanism of the first furnace door and the opening and closing control mechanism of the second furnace door to operate so that the first furnace door and the second furnace door are opened. At the same time, the controller controls the cold water valve of the cooling mechanism to open and introduce cooling water into the cold water pipe. The controller also controls the driving control mechanism 500 to operate so that the temperature regulating furnace 400 and the tempering furnace 300 are synchronously lowered, so that the glass sheet leaves the tempering furnace 300 and enters the temperature regulating furnace 400. When the glass sheet completely enters the temperature regulating furnace 400, the controller controls the opening and closing control mechanism of the first furnace door and the opening and closing control mechanism of the second furnace door to operate so that the first furnace door and the second furnace door are closed. The glass sheet continues to slowly cool in the temperature regulating furnace 400 for a preset time, and the controller controls the opening and closing control mechanism of the first furnace door to operate again to open the first furnace door, and the driving control mechanism 500 controls the temperature regulating furnace 400 to rise, so that the glass sheet in the glass basket 200 is exposed, so that the cooled glass sheet can be removed.
[0053] The implementation of the glass tempering system of the utility model has at least the following beneficial effects:
[0054] 1) The temperature regulating furnace 400 and the tempering furnace 300 are arranged in the vertical direction. During the tempering operation, the glass basket 200 loaded with the glass sheet remains stationary. By moving the temperature regulating furnace 400 and the tempering furnace 300, the product defect problem caused by the collision between the glass sheet and the glass basket when the glass sheet moves is eliminated, thereby improving the yield rate of the ultra-thin glass tempering operation.
[0055] 2) The vertical setting of the furnace body reduces the volume of the entire glass tempering system, and the floor space is only one-fourth of that of traditional equipment with the same capacity, without being restricted by the site and floor level.
[0056] 3) High energy utilization rate, all moving parts are precisely guided, the gap between the inner wall of the furnace and the glass basket 200 is greatly reduced, and the product is fully sealed during the preheating, tempering and cooling process, the utilization rate of heat energy and potassium salt is greatly improved, which can reduce product defects caused by temperature differences on the glass surface.
[0057] 4) High production flexibility, which can be achieved by either single machine independent production or multiple equipment online production to achieve fully automatic tempering operation.
[0058] 5) The equipment is highly interchangeable. The temperature regulating furnace 400 and the tempering furnace 300 are modular components that can be quickly disassembled and interchanged, greatly improving the efficiency and convenience of the equipment in operations such as salt discharge, salt addition, pre-melted salt, cleaning and maintenance.
[0059] 6) The stability and safety of the equipment are comprehensively improved, and all load-bearing parts are kept away from high-temperature areas, eliminating the potential safety hazards caused by high-temperature creep of load-bearing parts such as chains and hooks 130.
[0060] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0061] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A glass tempering system, characterized in that: It includes a frame with a tempering operation space formed therein, a glass basket accommodated in the tempering operation space, a tempering furnace, a temperature regulating furnace and a driving control mechanism; The glass basket is suspended and connected to the top of the frame and is used to load the glass sheets to be processed; The tempering furnace is located below the glass basket and can be raised and lowered relative to the frame so that the glass sheet can enter or leave the furnace space of the tempering furnace; The temperature regulating furnace is located above the glass basket and can be raised and lowered relative to the frame to allow the glass sheet to enter or leave the furnace space of the temperature regulating furnace; The drive control mechanism controls the temperature regulating furnace to descend and cover the glass basket, so that the temperature regulating furnace preheats the glass piece; the drive control mechanism controls the temperature regulating furnace and the tempering furnace to rise synchronously, so that the glass piece contacts the furnace water in the tempering furnace and is tempered; the drive control mechanism controls the temperature regulating furnace and the tempering furnace to descend synchronously, so that the temperature regulating furnace covers the glass basket and cools down the glass piece.
2. The glass tempering system according to claim 1, characterized in that: A heating mechanism and a cooling mechanism are arranged in the temperature regulating furnace, a first furnace opening and a first furnace door installed at the first furnace opening and openable and closable are arranged at the bottom of the temperature regulating furnace, a second furnace opening and a second furnace door installed at the second furnace opening and openable and closable are arranged at the top of the tempering furnace, and the glass tempering system further comprises a controller which is electrically connected to the heating device of the tempering furnace, the heating mechanism and the cooling mechanism of the temperature regulating furnace, the driving control mechanism, the opening and closing control mechanism of the first furnace door and the opening and closing control mechanism of the second furnace door respectively.
3. The glass tempering system according to claim 2, characterized in that: The frame includes a top plate, a plurality of support columns located below the top plate and fixedly connected to the top plate and arranged in parallel and spaced apart, and a bottom receiving member located at the bottom of each support column and fixedly connected to each support column. The top plate, the plurality of support columns and the bottom receiving member together form the tempered working space, and a hook for hanging the glass basket is fixed on the lower surface of the top plate.
4. The glass tempering system according to claim 3, characterized in that: The drive control mechanism includes a drive unit at least arranged on one side of the frame.
5. The glass tempering system according to claim 4, characterized in that: The driving unit includes a screw rod extending along the height direction of the frame and fixedly connected to the top plate and the bottom receiving member respectively, a first bracket sleeved on the screw rod and fixedly connected to the outer wall of the temperature regulating furnace, a first nut fixed on the first bracket and threadedly matched with the screw rod, a first driving motor fixed on the first bracket and used for driving the first nut and the first bracket to rise and fall along the screw rod, a second bracket located below the first bracket and fixedly connected to the outer wall of the tempering furnace, a second nut fixed on the second bracket and threadedly matched with the screw rod, and a second driving motor fixed on the second bracket and used for driving the second nut and the second bracket to rise and fall along the screw rod. The first driving motor and the second driving motor are electrically connected to the controller respectively.
6. The glass tempering system according to claim 5, characterized in that: The drive unit also includes a first chain straddled between the output shaft of the first drive motor and the first nut, and a second chain straddled between the output shaft of the second drive motor and the second nut. The outer surface of the output shaft of the first drive motor and the outer surface of the first nut are provided with first sprockets engaged with the first chain, and the outer surface of the output shaft of the second drive motor and the outer surface of the second nut are provided with second sprockets engaged with the second chain.
7. The glass tempering system according to claim 6, characterized in that: The driving unit also includes two guide shafts which are arranged opposite to each other on both sides of the screw rod and extend along the height direction of the frame. The guide shafts pass through the first bracket and the second bracket in sequence and are fixedly connected to the top plate and the bottom receiving member respectively.
8. The glass tempering system according to claim 2, characterized in that: The glass basket comprises a mother basket and a plurality of sub-baskets. The top of the mother basket is provided with at least one hanging ring which can be hung on a hook. A plurality of receiving positions for inserting the sub-baskets are formed in the mother basket. The sub-baskets are provided with a plurality of glass sheet inserting positions for inserting glass sheets.
9. The glass tempering system according to claim 1, characterized in that: The frame is also provided with an ion blower, and the air outlet end of the ion blower faces the glass basket.