CN111704350A - Curved surface glass's processing system - Google Patents
Curved surface glass's processing system Download PDFInfo
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- CN111704350A CN111704350A CN202010599641.9A CN202010599641A CN111704350A CN 111704350 A CN111704350 A CN 111704350A CN 202010599641 A CN202010599641 A CN 202010599641A CN 111704350 A CN111704350 A CN 111704350A
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- glass
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
- C03B23/0307—Press-bending involving applying local or additional heating, cooling or insulating means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/022—Cleaning travelling work
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
- C03B23/0305—Press-bending accelerated by applying mechanical forces, e.g. inertia, weights or local forces
Abstract
The invention provides a curved glass processing system which comprises a workbench, wherein a first groove is formed in the middle of the top end of the workbench, a conveyor belt is fixedly installed on the inner wall of the first groove, a plurality of clamping mechanisms are equidistantly placed on the surface of the conveyor belt, a preheating mechanism is fixedly installed on one side of the top end of the workbench, a cooling mechanism is fixedly installed on the other side of the top end of the workbench, a fifth groove is formed in the top end of the workbench, and an electric heating box is fixedly installed on the inner wall of the fifth groove. The invention has the beneficial effects that: the glass is preheated by the arranged electric heating plate, so that the glass is prevented from being cracked when entering the electric heating box and suddenly subjected to high temperature, the preheating speed is increased by the arranged fan, and the working speed is increased; the mould is placed through the inside of the fourth recess that sets up, then uses the bolt fastening, and the change of the mould of being convenient for improves the rate of adaptation of curved surface glass equipment according to the fashioned different moulds of requirement quick replacement of curved surface glass.
Description
Technical Field
The invention belongs to the technical field of glass production equipment, and particularly relates to a curved glass processing system.
Background
With the development of technology and the upgrading of product requirements, the requirements for glass screens are higher and higher, and glass screens include flat glass and curved glass, wherein curved glass is usually subjected to curved surface forming by adopting a thermal forming technology when being processed, a flat glass plate with a certain shape and size is placed on a mould matched with the size and shape when being subjected to a thermal forming process, then the glass plate is heated at a certain temperature to be softened and deformed under the action of extrusion force, the edge of the glass plate is contacted with the mould after being deformed, the bending degree of the glass plate is limited by the bending degree of the mould, however, the existing treatment of curved glass has the following defects in the using process:
(1) the existing curved glass forming is to put a flat glass plate with a certain shape and size on a mould matched with the size and shape, and then heat the glass plate at a certain temperature, however, the existing curved glass processing system lacks a device for preheating glass, and directly leads the flat glass into an electric heating box, so that the flat glass is suddenly subjected to high temperature and is easy to crack, and the excellent rate of products is reduced;
(2) the existing curved glass forming mold is generally fixed for use and is not easy to replace, but different curved glass forming molds are generally needed for curved glass forming, so that the utilization rate of curved glass forming equipment is low;
(3) after the existing curved glass forming die finishes the first processing, the curved glass forming die is not washed, impurities are attached to the surface of the curved glass forming die, the next curved glass forming is influenced, and the excellent rate of products is reduced.
Disclosure of Invention
The invention aims to provide a curved glass processing system, and aims to solve the problems that the conventional curved glass processing system in the prior art lacks a device for preheating curved glass, the flat glass is directly introduced into an electric heating box, the flat glass is suddenly subjected to high temperature and is easy to crack, the product quality is reduced, a curved glass forming mold used by the conventional curved glass processing system is generally fixedly used and is not easy to replace, the utilization rate of curved glass forming equipment is low, and the next curved glass forming is influenced because the conventional curved glass processing system does not wash the curved glass forming mold.
In order to achieve the purpose, the invention provides the following technical scheme: a curved glass processing system comprises a workbench, wherein a first groove is formed in the middle of the top end of the workbench, a conveyor belt is fixedly installed on the inner wall of the first groove, a plurality of clamping mechanisms are placed on the surface of the conveyor belt at equal intervals, a preheating mechanism is fixedly installed on one side of the top end of the workbench, a cooling mechanism is fixedly installed on the other side of the top end of the workbench, a fifth groove is formed in the top end of the workbench, an electric heating box is fixedly installed on the inner wall of the fifth groove, a sixth groove formed in the groove wall of the bottom of the first groove is formed in the bottom of the cooling mechanism, a branch pipe is connected to the groove wall of one side of the sixth groove in an inserting mode, a plurality of spray heads are fixedly installed on one side of the branch pipe at equal intervals, a cavity is formed in the workbench, a water collecting tank is fixedly installed in the cavity, and water through holes communicated with, one side of the water collecting tank is provided with a water outlet.
In order to clamp the glass, as a preferable mode of the present invention, the clamping mechanism includes a fixing block fixedly installed on an outer wall of the conveyor belt, a second groove is arranged at the top end of the fixed block, a third groove is arranged on the inner wall of one side of the second groove, the two ends of the inner wall of one side of the second groove are respectively provided with a guide groove, the inner wall of one side of the third groove is fixedly provided with a plurality of springs which are uniformly arranged, one end of each spring is fixedly provided with a movable plate, two ends of one side of the movable plate are fixedly provided with guide plates, the two guide grooves are matched with the two guide plates, the top of the movable plate is provided with a fourth groove, the top end of the movable plate is fixedly provided with a first mould, one side on fixed block top is equipped with the fourth recess, the inside of fourth recess is equipped with the second mould of fixed mounting in the fixed block top, first mould and second mould match each other.
In order to preheat glass, as a preferable mode of the invention, the preheating mechanism comprises a first U-shaped frame fixedly installed at the top end of the workbench, an electric heating plate is fixedly installed on the inner wall of the first U-shaped frame, a supporting rod is fixedly installed in the middle of the inner wall of the first U-shaped frame, and a plurality of fans are fixedly installed at the bottom end of the supporting rod at equal intervals.
In order to cool and shape the glass, as a preferable aspect of the present invention, the cooling mechanism includes a second U-shaped frame fixedly installed at the top end of the workbench, and a plurality of cooling fans are uniformly and fixedly installed on inner walls of two sides of the bottom end of the second U-shaped frame.
In order to prevent the workbench from sliding, as a preferable mode of the invention, support columns are fixedly installed at four corners of the bottom end of the workbench, and anti-sliding grains are arranged at the bottom ends of the four support columns.
In order to facilitate control, as a preferable mode of the invention, a switch panel is fixedly installed on one side of the workbench, a conveyor belt switch, an electric heating plate switch, a fan switch, an electric heating box switch and a cold air fan switch are respectively installed on the surface of the switch panel, and the conveyor belt, the electric heating plate, the fan, the electric heating box and the cold air fan are respectively and electrically connected with an external power supply through the conveyor belt switch, the electric heating plate switch, the fan switch, the electric heating box switch and the cold air fan switch.
In one embodiment, the step of obtaining the real-time speed of the plane glass passing through the conveyor belt (3) by using the process control principle is to increase the temperature by using the electric heating plate (52), and the quantity of air supply is controlled by controlling the number of the fans (54) for blowing air so as to ensure that the plane glass can be preheated in an increasing heating mode at any time and ensure that the real-time speed of the conveyor belt is obtained under the condition that the plane glass is safe in the increasing heating mode at any time, and the method comprises the following specific steps:
step A1: the real-time increment W (t) of the heat absorption of the surface of the plane glass when the electric heating plate (52) is in the state of the fan (54) without blowing is obtained by the formula (1)
Wherein W (t) represents the increase in the amount of heat absorbed by the flat glass surface at time t; rho represents the specific heat capacity of the plane glass (value 966J/kg DEG C); m represents the mass of the flat glass; g represents the gravity acceleration (the value is 9.8 m/s)2)；TdIndicating the temperature of the electrical heating plate (52); t issRepresenting the current room temperature (value 26 ℃); t (t) represents the increment of the surface temperature value of the flat glass at the time t
Because the above formula is not well calculated, formula (1) needs to be collated to obtain a first order differential equation about w (t), which is as follows:
solving W (t) by using a differential equation;
step A2: substituting the value obtained in the step A1 and the air supply quantity into the formula (2) to obtain the real-time increment W of the heat absorbed by the surface of the plane glass when the electric heating plate (52) is provided with an air blowing fan (54)c(t)
Wherein Wc(t) represents the increase of the amount of heat absorbed by the flat glass surface at time t by the electric heating plate (52) with the blowing fan (54); n (t) represents the ventilation quantity generated by a fan (54) blowing at the time t;
step A3: when the real-time increment of the surface temperature of the plane glass of the electric heating plate (52) in the blowing fan (54) is ensured to be in a safe range, the real-time blowing increment of the fan (54) is obtained, firstly, an inverse function is obtained for a formula (2), and N (t) f (W) is obtainedc(T)) substituting the predetermined glass bursting heat T (wherein the normal glass T is 100, and the tempered glass T is 200) into an inverse function formula, and keeping 80% of the margin for adaptation to ensure that the flat glass is in a safe rangec(T) 80% × T, yielding N (T) f (T), the value of N (T) at this time being denoted Nc(t) represents the ventilation amount of the fan (54) at the time t, which is obtained under the condition that the increment of the temperature of the surface of the plane glass at the time t when the electric heating plate (52) has the fan (54) blowing air is ensured to be within a safe range;
step A4: obtaining N obtained in step A3 by using the formula (3)c(t) and blowingThe number of the fans (54) is related
Wherein n (t) represents the number of fans (54) blowing at time t; q represents the amount of ventilation generated by a single fan (54);
step A5: the real-time speed V (t) of the conveyor belt passing through the preheating mechanism (5) is obtained by using the formula (4) under the condition of ensuring that the real-time increment of the surface temperature of the plane glass of the electric heating plate (52) in the presence of the blowing fan (54) is within a safe range
Wherein V (t) represents the speed of the conveyor belt passing through the preheating mechanism (5) at time t; the speed l represents the total length of the belt passing through the preheating means (5).
Compared with the prior art, the invention has the beneficial effects that:
(1) the glass is preheated by the arranged electric heating plate, so that the glass is prevented from being cracked when entering the electric heating box and suddenly subjected to high temperature, the preheating speed is increased by the arranged fan, and the working speed is increased;
(2) the spring and the movable plate are arranged to provide extrusion force, the softened glass is attached to the mold, the mold is placed in the fourth groove and is fixed by the bolt, so that the mold is convenient to replace, different curved glass forming molds are quickly replaced according to the curved glass forming requirement, and the utilization rate of curved glass equipment is improved;
(3) the mould after the first time of curved surface glass shaping processing is washed through the branch pipe and the shower nozzle that set up, clears away curved surface glass shaping mould surface and adheres to impurity, has improved the excellent rate of product.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of the present invention;
FIG. 3 is a schematic side view of the present invention;
FIG. 4 is a schematic view of a clamping mechanism according to the present invention;
FIG. 5 is a schematic sectional view of the clamping mechanism according to the present invention;
FIG. 6 is a circuit diagram of a fan according to the present invention;
in the figure: 1. a work table; 2. a first groove; 3. a conveyor belt; 4. a clamping mechanism; 41. a fixed block; 42. a second groove; 43. a third groove; 44. a spring; 45. a movable plate; 46. a guide groove; 47. a guide plate; 48. a fourth groove; 5. a preheating mechanism; 51. a first U-shaped frame; 52. an electrical heating plate; 53. a support bar; 54. a fan; 6. an electric heating box; 7. a fifth groove; 8. a cooling mechanism; 81. a second U-shaped frame; 82. a cooling fan; 9. a sixth groove; 10. a branch pipe; 11. a spray head; 12. a water through hole; 13. a water collection tank; 14. a water outlet; 15. a support pillar; 16. a first mold; 17. and a second mold.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides the following technical solutions: a curved glass processing system comprises a workbench 1, a first groove 2 is arranged in the middle of the top end of the workbench 1, a conveyor belt 3 is fixedly arranged on the inner wall of the first groove 2, a plurality of clamping mechanisms 4 are placed on the surface of the conveyor belt 3 at equal intervals, a preheating mechanism 5 is fixedly arranged on one side of the top end of the workbench 1, a cooling mechanism 8 is fixedly arranged on the other side of the top end of the workbench 1, a fifth groove 7 is arranged on the top end of the workbench 1, an electric heating box 6 is fixedly arranged on the inner wall of the fifth groove 7, a sixth groove 9 arranged on the groove wall at the bottom of the first groove 2 is arranged at the bottom of the cooling mechanism 8, a branch pipe 10 is inserted and connected into the groove wall on one side of the sixth groove 9, a plurality of nozzles 11 are fixedly arranged on one side of the branch pipe 10 at equal intervals, a cavity is formed in the workbench 1, a water collecting tank 13 is fixedly arranged in the cavity, one side of the water collecting tank 13 is provided with a water outlet 14.
Preferably, the clamping mechanism 4 includes a fixed block 41 fixedly mounted on the outer wall of the conveyor belt 3, a second groove 42 is disposed at the top end of the fixed block 41, a third groove 43 is disposed on the inner wall of one side of the second groove 42, guide grooves 46 are disposed at both ends of the inner wall of one side of the second groove 42, a plurality of springs 44 are uniformly arranged on the inner wall of one side of the third groove 43, a movable plate 45 is fixedly mounted at one end of the plurality of springs 44, guide plates 47 are fixedly mounted at both ends of one side of the movable plate 45, the two guide grooves 46 are matched with the two guide plates 47, a fourth groove 48 is disposed at the top of the movable plate 45, a first mold 16 is fixedly mounted at the top end of the movable plate 45, a fourth groove 48 is disposed at one side of the top end of the fixed block 41, a second mold 17 fixedly mounted at the top end of the fixed block 41 is disposed, the pressing force is provided through the arranged spring 44 and the movable plate 45, when the plane glass is heated to the softening temperature between the first mold 16 and the second mold 17, the spring 44 and the movable plate 45 provide the pressing force to enable the edge of the glass plate to be in contact with the mold after deformation, the bending degree of the glass plate is limited by the bending degree of the mold, the mold is placed in the groove of the fourth groove 48 and then fixed through bolts, the mold is convenient to replace, and the first mold 16 and the second mold 17 are matched with each other to clamp the glass and obtain qualified curved glass.
Preferably, the preheating mechanism 5 comprises a first U-shaped frame 51 fixedly mounted at the top end of the workbench 1, an electric heating plate 52 is fixedly mounted on the inner wall of the first U-shaped frame 51, a supporting rod 53 is fixedly mounted in the middle of the inner wall of the first U-shaped frame 51, a plurality of fans 54 are fixedly mounted at equal intervals at the bottom end of the supporting rod 53, the glass is preheated through the arranged electric heating plate 52, and the preheating speed is accelerated through the arranged fans 54.
Preferably, the cooling mechanism 8 comprises a second U-shaped frame 81 fixedly mounted at the top end of the workbench 1, a plurality of cooling fans 82 are uniformly and fixedly mounted on the inner walls of the two sides of the bottom end of the second U-shaped frame 81, and the temperature of the glass is rapidly reduced through the arranged cooling fans 82, so that the glass is convenient to shape.
Preferably, the equal fixed mounting in four edges in 1 bottom of workstation has support column 15, and anti-skidding line has all been seted up to the bottom of four support columns 15, and the anti-skidding line of seting up through the support column 15 bottom that sets up increases the frictional force on support column 15 and ground, prevents that workstation 1 from sliding, guarantees the stability of workstation 1.
Preferably, a switch panel is fixedly installed on one side of the workbench 1, a conveyor belt switch, an electric heating plate switch, a fan switch, an electric heating box switch and a cold air fan switch are respectively installed on the surface of the switch panel, and the conveyor belt 3, the electric heating plate 52, the fan 54, the electric heating box 6 and the cold air fan 82 are respectively electrically connected with an external power supply through the conveyor belt switch, the electric heating plate switch, the fan switch, the electric heating box switch and the cold air fan switch.
When the device is used, firstly, the first mold 16 and the second mold 17 are installed through the fourth groove 48, different rubber and plastic molds are quickly replaced according to the rubber and plastic molding requirement, the plane glass is placed between the first mold 16 and the second mold 17, the plane glass is fixed between the first mold 16 and the second mold 17 due to the extrusion of the spring 44, then the conveyor belt 3, the electric heating plate 52, the fan 54, the electric heating box 6 and the cold air fan 82 are respectively started through the conveyor belt switch, the electric heating plate switch, the fan switch, the electric heating box switch and the cold air fan switch, the clamping mechanism 4 is conveyed to the interior of the preheating mechanism 5 through the conveyor belt 3, the temperature is increased through the electric heating plate 52, the preheating treatment is accelerated through the wind generated by the fan 54, the preheated plane glass enters the interior of the electric heating box 6, the plane glass is softened at a high temperature, the extrusion force is provided along with the spring 44 and the, the softened glass is attached to the first mold 16 and the second mold 17 to form curved glass, the temperature of the curved glass is high at the moment, the curved glass enters the cooling mechanism 8, the curved glass is cooled and shaped through cold air generated by the cold air fan 82, finally the curved glass is taken away from the tail end of the conveyor belt 3, the clamping mechanism 4 continues to move to the bottom end of the conveyor belt 3, one end of the branch pipe 10 is connected with the water tank through the connecting pipe, the surfaces of the first mold 16 and the second mold 17 are washed through the spray head 11, impurities adhered to the surfaces of the first mold 16 and the second mold 17 are cleaned, cleaned sewage flows into the sixth groove 9, the sewage flows into the water collecting tank 13 through the water through hole 12, and when the operation is finished, the sewage is guided into the sewage treatment device through the water outlet 14.
In one embodiment, the step of obtaining the real-time speed of the plane glass passing through the conveyor belt (3) by using the process control principle is to increase the temperature by using the electric heating plate (52), and the quantity of air supply is controlled by controlling the number of the fans (54) for blowing air so as to ensure that the plane glass can be preheated in an increasing heating mode at any time and ensure that the real-time speed of the conveyor belt is obtained under the condition that the plane glass is safe in the increasing heating mode at any time, and the method comprises the following specific steps:
step A1: the real-time increment W (t) of the heat absorption of the surface of the plane glass when the electric heating plate (52) is in the state of the fan (54) without blowing is obtained by the formula (1)
Wherein W (t) represents the increase in the amount of heat absorbed by the flat glass surface at time t; rho represents the specific heat capacity of the plane glass (value 966J/kg DEG C); m represents the mass of the flat glass; g represents the gravity acceleration (the value is 9.8 m/s)2)；TdIndicating the temperature of the electrical heating plate (52); t issRepresenting the current room temperature (value 26 ℃); t (t) represents the increment of the surface temperature value of the flat glass at the time t
Because the above formula is not well calculated, formula (1) needs to be collated to obtain a first order differential equation about w (t), which is as follows:
solving W (t) by using a differential equation;
step A2: substituting the value obtained in the step A1 and the air supply quantity into the formula (2) to obtain the real-time increment W of the heat absorbed by the surface of the plane glass when the electric heating plate (52) is provided with an air blowing fan (54)c(t)
Wherein Wc(t) represents the increase of the amount of heat absorbed by the flat glass surface at time t by the electric heating plate (52) with the blowing fan (54); n (t) represents the ventilation quantity generated by a fan (54) blowing at the time t;
step A3: when the real-time increment of the surface temperature of the plane glass of the electric heating plate (52) in the blowing fan (54) is ensured to be in a safe range, the real-time blowing increment of the fan (54) is obtained, firstly, an inverse function is obtained for a formula (2), and N (t) f (W) is obtainedc(T)) substituting the predetermined glass bursting heat T (wherein the normal glass T is 100, and the tempered glass T is 200) into an inverse function formula, and keeping 80% of the margin for adaptation to ensure that the flat glass is in a safe rangec(T) 80% × T, yielding N (T) f (T), the value of N (T) at this time being denoted Nc(t) represents the ventilation amount of the fan (54) at the time t, which is obtained under the condition that the increment of the temperature of the surface of the plane glass at the time t when the electric heating plate (52) has the fan (54) blowing air is ensured to be within a safe range;
step A4: obtaining N obtained in step A3 by using the formula (3)c(t) relationship with the number of fans (54) blowing air
Wherein n (t) represents the number of fans (54) blowing at time t; q represents the amount of ventilation generated by a single fan (54);
step A5: the real-time speed V (t) of the conveyor belt passing through the preheating mechanism (5) is obtained by using the formula (4) under the condition of ensuring that the real-time increment of the surface temperature of the plane glass of the electric heating plate (52) in the presence of the blowing fan (54) is within a safe range
Wherein V (t) represents the speed of the conveyor belt passing through the preheating mechanism (5) at time t; the speed l represents the total length of the belt passing through the preheating means (5).
The beneficial effects of the above technical scheme are: obtaining a real-time increment of the heat absorbed by the flat glass surface of the electric heating plate (52) when the fan (54) does not blow air by using the formula (1) in the step A1, wherein the purpose is to obtain a specific acquired energy value of the flat glass surface through the formula so as to quantify the heat of the glass surface, and compared with the method without the formula and the step, the method can control and calculate the heat absorbed by the flat glass by using the formula; obtaining the real-time increment of the heat absorbed by the surface of the plane glass of the electric heating plate (52) when the fan (54) blows air by utilizing the formula (2) in the step A2, thereby pertinently ensuring that the plane glass can be heated in an incremental manner, and compared with the condition without the formula and the step, the plane glass can be heated in an incremental manner; and obtaining the ventilation quantity of the fan (54) at the time t, which is obtained under the condition of ensuring that the increment of the surface temperature of the plane glass at the time t is within a safe range when the fan (54) blows air, of the electric heating plate (52), by utilizing the step A3 and the preset glass burst heat, in order to ensure that the ventilation quantity of the electric heating plate (52) can maximally ensure the preheating rapidity of the electric heating plate when the increment of the surface temperature of the plane glass at the time t is within the safe range when the fan (54) blows air is within the safe range, obtaining the number of the fans (54) blowing air by utilizing the formula (3) in the step A4 so as to control the ventilation quantity by changing the number, and finally obtaining the real-time speed of the conveyor belt passing through the preheating mechanism (5) by utilizing the formula (4) in the step A5 so as to ensure that the plane glass can be quickly, accurately and.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A curved glass's processing system, includes workstation (1), its characterized in that: the middle part on the top end of the workbench (1) is provided with a first groove (2), the inner wall fixed mounting of the first groove (2) is provided with a conveyor belt (3), the surface equidistance of the conveyor belt (3) is provided with a plurality of clamping mechanisms (4), one side fixed mounting of the top end of the workbench (1) is provided with a preheating mechanism (5), the other side fixed mounting of the top end of the workbench (1) is provided with a cooling mechanism (8), the top end of the workbench (1) is provided with a fifth groove (7), the inner wall fixed mounting of the fifth groove (7) is provided with an electric heating box (6), the bottom of the cooling mechanism (8) is provided with a sixth groove (9) arranged on the groove wall of the bottom of the first groove (2), the groove wall of one side of the sixth groove (9) is alternately connected with a branch pipe (10), one side equidistance fixed mounting of the branch pipe (, the cavity has been seted up to the inside of workstation (1), the inside fixed mounting of cavity has header tank (13), limbers (12) with sixth recess (9) intercommunication are seted up to the top equidistance of header tank (13), and delivery port (14) have been seted up to one side of header tank (13).
2. The curved glass processing system according to claim 1, wherein: the clamping mechanism (4) comprises a fixed block (41) fixedly installed on the outer wall of the conveyor belt (3), a second groove (42) is arranged on the top end of the fixed block (41), a third groove (43) is arranged on the inner wall of one side of the second groove (42), guide grooves (46) are arranged at two ends of the inner wall of one side of the second groove (42), a plurality of springs (44) which are uniformly arranged are fixedly installed on the inner wall of one side of the third groove (43), a movable plate (45) is fixedly installed at one end of each spring (44), guide plates (47) are fixedly installed at two ends of one side of the movable plate (45), the two guide grooves (46) are matched with the two guide plates (47), a fourth groove (48) is arranged at the top of the movable plate (45), a first mold (16) is fixedly installed at the top end of the movable plate (45), a fourth groove (48) is arranged on one side of the top end of the fixed, and a second die (17) fixedly mounted at the top of the fixing block (41) is arranged in the fourth groove (48), and the first die (16) is matched with the second die (17).
3. The curved glass processing system according to claim 2, wherein: preheat mechanism (5) including fixed mounting in first U type frame (51) on workstation (1) top, the inner wall fixed mounting of first U type frame (51) has electric heating plate (52), the middle part fixed mounting of first U type frame (51) inner wall has bracing piece (53), the bottom equidistance fixed mounting of bracing piece (53) has a plurality of fan (54).
4. The curved glass processing system according to claim 3, wherein: cooling body (8) are including second U type frame (81) fixed mounting in workstation (1) top, the even fixed mounting in both sides inner wall of second U type frame (81) bottom has a plurality of cold air fan (82).
5. The curved glass processing system according to claim 1, wherein: four equal fixed mounting in edge in workstation (1) bottom have support column (15), four anti-skidding line has all been seted up to the bottom of support column (15).
6. The curved glass processing system according to claim 4, wherein: one side fixed mounting of workstation (1) has flush mounting plate of switch, flush mounting plate of switch's surface installs conveyer belt switch, electric heating board switch, fan switch, electric heating box switch and cold air fan switch respectively, conveyer belt (3), electric heating board (52), fan (54), electric heating box (6) and cold air fan (82) are respectively through conveyer belt switch, electric heating board switch, fan switch, electric heating box switch and cold air fan switch and external power supply electric connection.
7. The curved glass processing system according to claim 6, wherein: the step of obtaining the real-time speed of the plane glass through the conveyor belt (3) by utilizing the process control principle is to utilize the electric heating plate (52) to increase the temperature, and the quantity of air supply is controlled by controlling the number of the fans (54) blowing air, so that the plane glass can be preheated in a progressively increasing heating mode constantly, and the plane glass is ensured to obtain the real-time speed of the conveyor belt under the condition that the progressively increasing heating mode is safe constantly, and the method comprises the following specific steps:
step A1: the real-time increment W (t) of the heat absorption of the surface of the plane glass when the electric heating plate (52) is in the state of the fan (54) without blowing is obtained by the formula (1)
Wherein W (t) represents the increase in the amount of heat absorbed by the flat glass surface at time t; rho represents the specific heat capacity of the plane glass (value 966J/kg DEG C); m represents the mass of the flat glass; g represents the gravity acceleration (the value is 9.8 m/s)2)；TdIndicating the temperature of the electrical heating plate (52); t issRepresenting the current room temperature (value 26 ℃); t (t) represents the increment of the surface temperature value of the flat glass at the time t
Because the above formula is not well calculated, formula (1) needs to be collated to obtain a first order differential equation about w (t), which is as follows:
solving W (t) by using a differential equation;
step A2: substituting the value obtained in the step A1 and the air supply quantity into the formula (2) to obtain the real-time increment W of the heat absorbed by the surface of the plane glass when the electric heating plate (52) is provided with an air blowing fan (54)c(t)
Wherein Wc(t) represents the increase of the amount of heat absorbed by the flat glass surface at time t by the electric heating plate (52) with the blowing fan (54); n (t) represents the ventilation quantity generated by a fan (54) blowing at the time t;
step A3: when the real-time increment of the surface temperature of the plane glass of the electric heating plate (52) in the blowing fan (54) is ensured to be in a safe range, the real-time blowing increment of the fan (54) is obtained, firstly, an inverse function is obtained for a formula (2), and N (t) f (W) is obtainedc(T)) substituting the predetermined glass bursting heat T (wherein the normal glass T is 100, and the tempered glass T is 200) into an inverse function formula, and keeping 80% of the margin for adaptation to ensure that the flat glass is in a safe rangec(T) 80% × T, yielding N (T) f (T), the value of N (T) at this time being denoted Nc(t) represents the ventilation amount of the fan (54) at the time t, which is obtained under the condition that the increment of the temperature of the surface of the plane glass at the time t when the electric heating plate (52) has the fan (54) blowing air is ensured to be within a safe range;
step A4: obtaining N obtained in step A3 by using the formula (3)c(t) relationship with the number of fans (54) blowing air
Wherein n (t) represents the number of fans (54) blowing at time t; q represents the amount of ventilation generated by a single fan (54);
step A5: the real-time speed V (t) of the conveyor belt passing through the preheating mechanism (5) is obtained by using the formula (4) under the condition of ensuring that the real-time increment of the surface temperature of the plane glass of the electric heating plate (52) in the presence of the blowing fan (54) is within a safe range
Wherein V (t) represents the speed of the conveyor belt passing through the preheating mechanism (5) at time t; the speed l represents the total length of the belt passing through the preheating means (5).
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| CN202010599641.9A CN111704350A (en) | 2020-06-28 | 2020-06-28 | Curved surface glass's processing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113443821A (en) * | 2021-08-30 | 2021-09-28 | 江苏春戈玻璃有限公司 | Glass hot bending forming machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113443821A (en) * | 2021-08-30 | 2021-09-28 | 江苏春戈玻璃有限公司 | Glass hot bending forming machine |
| CN113443821B (en) * | 2021-08-30 | 2021-11-09 | 江苏春戈玻璃有限公司 | Glass hot bending forming machine |
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Application publication date: 20200925 |