Float glass production equipment and process
By using a combination of laser and light sensors to measure contactless glass thickness in float glass production, the problems of mechanical contact sensors on measurement errors and scratches on the glass surface are solved, and high-precision glass thickness detection and automatic recycling and secondary utilization are achieved, reducing material waste and environmental pollution.
Patent Information
- Application Number
- CN202411885336.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2044-12-20
AI Technical Summary
In the production of existing float glass, mechanical contact sensors can measure errors due to unevenness of the glass surface when measuring the thickness of the glass, and mechanical contact may cause scratches on the glass surface, affecting the finish and transparency of the finished product.
Using a combination of laser and light sensor, light rays are emitted through the glass and refracted onto the light sensor through the laser, a contactless measurement method for calculating the glass thickness, and a high-precision detection of glass width is achieved through the combination of measuring rollers and grating scales.
It effectively avoids measurement errors due to unevenness of the glass surface, ensures accurate detection of glass thickness, reduces manual errors, and reduces material waste and environmental pollution through automatic recycling and secondary utilization.
Smart Images

Figure CN119330574B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of glass production measurement technology, specifically to a float glass production equipment and process. Background Technology
[0002] In existing float glass production processes, glass thickness and width are crucial parameters for ensuring product quality, directly impacting the uniformity and stability of the finished product. Currently, the commonly used method for measuring glass thickness is mechanical contact sensors. These sensors rely on direct contact with the glass surface to acquire accurate data. However, while this method was prevalent in the past, its limitations have become increasingly apparent with advancements in production processes, especially given the faster production lines and higher glass quality requirements. Traditional mechanical contact measurement methods are gradually failing to meet these demands. First, the working principle of mechanical contact sensors relies on physical contact, measuring thickness through close contact with the glass surface. However, during the cooling and forming process, thermal stress often causes minute protrusions, depressions, or other irregular deformations on the glass surface. This unevenness leads to significant errors in the contact sensor's measurement, particularly during the cooling stage, where even tiny surface protrusions or depressions can cause deviations in the sensor's measurement values. Furthermore, during glass transport, the continuous friction between the mechanical sensor and the glass surface can cause minor scratches, further affecting the smoothness and transparency of the finished product. Summary of the Invention
[0003] To overcome the shortcomings of the prior art, the present invention provides the following technical solution: a float glass production equipment, comprising a measuring component, the measuring component including two parallel supporting side plates, and a plurality of parallel conveying rollers rotatably mounted between the two supporting side plates to support glass removed from an annealing furnace; a light shield is also fixedly mounted between the two supporting side plates, the light shield having downward-hanging edges on both sides, and light-blocking curtains on both downward-hanging edges to block external light from entering the light shield; a light sensor bracket is fixed to the top of the inner wall of the light shield, the lower surface of the light sensor bracket is inclined, and a plurality of light sensors are equidistantly arranged on the lower surface of the light sensor bracket along the width direction of the produced glass; and a number of lasers, the same number as the light sensors, are rotatably mounted between two adjacent conveying rollers.
[0004] Preferably, all lasers are fixed on laser brackets, which are rotatably fitted with support side plates. An adjusting electric cylinder is rotatably mounted on the outer side of one of the support side plates. One end of the laser bracket extends to the outer side of the support side plate, and an adjusting swing arm is fixed to the end of the laser bracket extending to the outer side of the support side plate. The end of the adjusting swing arm away from the laser bracket is movably connected to the end of the telescopic rod of the adjusting electric cylinder.
[0005] Preferably, the measuring component is provided with an auxiliary component along the direction of glass movement. The auxiliary component includes an arc-shaped frame with two symmetrically arranged sliding slots. A measuring sliding rod support is fixed in the middle of the arc-shaped frame, and a measuring sliding rod is slidably mounted on the measuring sliding rod support. The arc-shaped frame is also equipped with a grating ruler for measuring the displacement between the measuring sliding rod and the measuring sliding rod support.
[0006] Preferably, a push synchronizing rod is fixed to one end of the measuring sliding rod, and a compression spring is fixed between the push synchronizing rod and the measuring sliding rod bracket. The compression spring surrounds the measuring sliding rod, and measuring roller movable rods are movably installed at both ends of the push synchronizing rod. Measuring rollers are rotatably installed at the ends of the two measuring roller movable rods away from the push synchronizing rod. The measuring rollers are in rolling engagement with the side of the glass, and the measuring roller movable rods are in rotational engagement with the measuring rollers through a rotating shaft, which is in sliding engagement in a sliding groove.
[0007] Preferably, it also includes a float glass bath, the drawing end of which is connected to an annealing furnace. The molten glass inlet of the float glass bath is connected to a melting furnace. The melting furnace has a recessed pool for molten glass inside. A feeding trough is connected to the melting furnace to supply molten glass raw materials into the melting furnace. The feeding trough and the melting furnace are connected through a feeding channel. A sealing core is rotatably installed in the middle of the feeding channel. The sealing core has a through hole of the same width as the feeding channel to control the glass raw materials inside the feeding trough from falling into the melting furnace.
[0008] Preferably, a feeding control motor for driving the rotation of the sealing core column is also fixedly installed on the feeding trough; the interior of the melting furnace is connected to the float tin bath through a flow outlet, so that the molten glass inside the melting furnace flows into the float tin bath, wherein the flow outlet is equipped with a flow regulating seal plate, which slides with the melting furnace to adjust the opening area of the flow outlet; a flow regulating frame is also fixed on the melting furnace, and two parallel guide rods are slidably installed on the flow regulating frame, both of which are fixed to the flow regulating seal plate; a top flow regulating rod and a bottom flow regulating rod are movably connected to the middle part of the flow regulating frame and the middle part of the flow regulating seal plate, respectively, wherein the end of the top flow regulating rod away from the flow regulating frame is movably connected to the end of the bottom flow regulating rod away from the flow regulating seal plate; a flow regulating electric cylinder is also movably installed on the flow regulating frame, and the end of the telescopic rod of the flow regulating cylinder is movably connected to the movable connection of the bottom flow regulating rod and the top flow regulating rod.
[0009] Preferably, it also includes two recycling components symmetrically arranged on both sides of the float glass bath. The recycling components include a feeding conveyor belt for conveying the cut glass fragments to the inside of the recycling cylinder. A supporting sealing cover is fixedly and sealed on the top of the recycling cylinder. A return inlet is opened on the supporting sealing cover. One end of the feeding conveyor belt extends above the return inlet, so that the glass fragments conveyed from the feeding conveyor belt fall into the inside of the recycling cylinder through the return inlet. A dust cover is fitted on the outside of the return inlet.
[0010] Preferably, a crushing blade rotating sleeve is rotatably installed at the center of the supporting sealing cover, coaxially arranged with the recycling cylinder. A recycling pipe is rotatably arranged coaxially inside the crushing blade rotating sleeve. A recycling screw is rotatably installed inside the recycling pipe, running from bottom to top. A recycling control motor for driving the recycling screw to rotate is fixedly installed at the bottom of the recycling cylinder.
[0011] Preferably, a dividing screen is fixedly installed on the lower middle part of the inner wall of the recycling cylinder, a crushing blade is rotatably installed on the upper surface of the dividing screen, the crushing blade is fixed on the crushing blade rotating sleeve, a driven gear is fixedly installed on the top of the crushing blade rotating sleeve, the driven gear rotates and engages with the recycling pipe, a crushing control motor is fixedly installed on the supporting sealing cover, a driving gear that meshes with the driven gear is fixedly installed on the output shaft of the crushing control motor, and an inclined sliding groove is fixed at the top of the recycling pipe, with the lower end of the sliding groove positioned above the feeding chute.
[0012] A float glass production process includes the following steps: S1, pouring glass raw materials into a feeding trough, and starting the feeding control motor to allow the raw materials in the feeding trough to enter the melting furnace through the feeding hole; S2, molten glass flows into the float tin bath through the flow outlet; the molten glass spreads on the surface of the tin bath, with the tin bath near the melting furnace having a higher temperature to ensure the fluidity of the molten glass and avoid surface defects; S3, the cooled glass enters the measuring component for thickness detection; a laser emits light, which passes through the glass and illuminates the light sensor, and the glass thickness is calculated by the refraction offset of the light; S4, by adjusting the swing angle of the laser, total internal reflection is avoided to ensure measurement accuracy; the measuring component enables non-contact glass thickness detection; S5, after thickness measurement, the width of the glass side is detected by an auxiliary component, with the glass side abutting against the measuring roller, and the width of the glass strip is measured by measuring the displacement of the sliding rod using a grating ruler.
[0013] Compared with the prior art, the present invention has the following advantages: (1) The present invention achieves non-contact measurement of glass thickness by combining a laser and a light sensor. Compared with the traditional mechanical measurement method that adheres to the glass surface, laser measurement can effectively avoid measurement errors caused by uneven glass surface. Especially when the glass surface is raised or recessed, mechanical measurement is prone to deviation, while this system ensures measurement accuracy by measuring the refraction offset of light and can accurately detect the actual thickness of the glass; (2) The present invention, through the combination of measuring roller and grating ruler, can automatically adjust the position of the measuring sliding rod to ensure that the measuring roller is always in close contact with the side of the glass, providing high-precision width detection. This synchronous adjustment design reduces human error and ensures the stability and durability of the measurement system through the action of spring force; (3) The recycling component of the present invention effectively crushes the cut glass fragments by the rotation of the crushing control motor and the crushing blade and conveys them to the melting furnace through the recycling screw for reuse. This design realizes the automatic recycling and reuse of glass fragments, reduces material waste, and reduces environmental pollution during glass production, with good economic benefits and environmental protection effects. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention.
[0015] Figure 2 For the present invention Figure 1 Schematic diagram of the structure at point A in the middle.
[0016] Figure 3 This is a schematic diagram of the laser structure of the present invention.
[0017] Figure 4 This is a schematic diagram of the material feeding trough structure of the present invention.
[0018] Figure 5 This is a schematic diagram of the recovery cylinder structure of the present invention.
[0019] In the diagram: 101-Supporting side plate; 102-Light shield; 103-Light shield curtain; 104-Adjusting swing arm; 105-Laser bracket; 106-Adjusting electric cylinder; 107-Light sensor bracket; 108-Light sensor; 109-Laser; 110-Conveyor roller; 201-Arch-shaped frame; 202-Measuring roller; 203-Measuring roller movable rod; 204-Pushing synchronous rod; 205-Compression spring; 206-Measuring sliding rod bracket; 207-Measuring sliding rod; 208-Sliding channel; 301-Discharge chute; 302-Discharge channel; 303-Sealing core column; 304-Passing hole; 305-Discharge control motor; 306-Melting furnace 307-Flow regulating frame; 308-Guide slide bar; 309-Flow regulating sealing plate; 310-Flow outlet; 311-Bottom flow regulating rod; 312-Top flow regulating rod; 313-Flow regulating electric cylinder; 401-Recovery cylinder; 402-Recovery screw; 403-Recovery quantity control motor; 404-Recovery pipe; 405-Separating screen; 406-Crushing blade; 407-Crushing blade rotating sleeve; 408-Crushing control motor; 409-Drive gear; 410-Driven gear; 411-Dust cover; 412-Feeding conveyor belt; 413-Sliding trough; 414-Support sealing cover plate; 415-Return feed inlet; 501-Float tin bath; 601-Annealing kiln. Detailed Implementation
[0020] The following is in conjunction with the appendix Figures 1-5 The technical solution of the present invention will be further illustrated through specific embodiments.
[0021] This invention provides a float glass production equipment, including a measuring component. The measuring component includes two parallel support side plates 101, and a plurality of parallel conveyor rollers 110 are rotatably mounted between the two support side plates 101 to support glass removed from an annealing furnace 601. A light shield 102 is also fixedly mounted between the two support side plates 101. The light shield 102 has downward-hanging edges on both sides, and each of the two downward-hanging edges is equipped with a light-shielding curtain 103 to block external light from entering the light shield 102. A light sensor bracket 107 is fixed to the top of the inner wall of the light shield 102. The lower surface of the light sensor bracket 107 is inclined, and a plurality of light sensors 108 are equidistantly arranged on the lower surface of the light sensor bracket 107 along the width direction of the produced glass. The same number of lasers 109 as the light sensors 108 are rotatably mounted between two adjacent conveyor rollers 110. All lasers 109 are fixed on laser brackets 105. Laser brackets 105 are rotatably engaged with support side plates 101. An adjusting electric cylinder 106 is rotatably mounted on the outer side of one of the support side plates 101. One end of the laser bracket 105 extends to the outer side of the support side plate 101, and an adjusting swing arm 104 is fixed to the end of the laser bracket 105 extending to the outer side of the support side plate 101. The end of the adjusting swing arm 104 away from the laser bracket 105 is movably connected to the end of the telescopic rod of the adjusting electric cylinder 106.
[0022] The measuring component is equipped with an auxiliary component along the direction of glass movement. The auxiliary component includes an arc-shaped frame 201 with two symmetrically arranged sliding slots 208. A measuring sliding rod support 206 is fixed in the middle of the arc-shaped frame 201, and a measuring sliding rod 207 is slidably mounted on the measuring sliding rod support 206. The arc-shaped frame 201 is also equipped with a grating ruler for measuring the displacement between the measuring sliding rod 207 and the measuring sliding rod support 206. One end of the measuring sliding rod 207 is fixed with a push synchronizing rod 204. A compression spring 205 is fixed between the push synchronizing rod 204 and the measuring sliding rod bracket 206. The compression spring 205 surrounds the measuring sliding rod 207. Measuring roller movable rods 203 are movably installed at both ends of the push synchronizing rod 204. Measuring rollers 202 are rotatably installed at the ends of the two measuring roller movable rods 203 away from the push synchronizing rod 204. The measuring rollers 202 roll with the side of the glass. The measuring roller movable rods 203 and the measuring rollers 202 are rotatably engaged through a rotating shaft, and the rotating shaft slides in the sliding groove 208.
[0023] It also includes a float glass bath 501, the drawing end of which is connected to an annealing furnace 601. The molten glass inlet of the float glass bath 501 is connected to a melting furnace 306. The melting furnace 306 has a recessed pool for molten glass inside. A feeding trough 301 is connected to the melting furnace 306 to provide molten glass raw materials into the melting furnace 306. The feeding trough 301 and the melting furnace 306 are connected through a feeding channel 302. A sealing core column 303 is rotatably installed in the middle of the feeding channel 302. The sealing core column 303 has a through hole 304 with the same width as the feeding channel 302 to control the glass raw materials inside the feeding trough 301 from falling into the melting furnace 306. A feeding control motor 305 for driving the rotation of the sealing core column 303 is also fixedly installed on the feeding trough 301; the interior of the melting furnace 306 is connected to the float tin bath 501 through the liquid outlet 310, so that the molten glass inside the melting furnace 306 flows into the float tin bath 501. The liquid outlet 310 is equipped with a flow regulating plate 309, which slides with the melting furnace 306 to adjust the opening area of the liquid outlet 310; a flow regulating frame 307 is also fixed on the melting furnace 306, and two parallel guides are slidably installed on the flow regulating frame 307. Guide rods 308 are fixed to flow control plate 309. The middle part of flow control frame 307 and the middle part of flow control plate 309 are respectively movably connected to top flow control rod 312 and bottom flow control rod 311. The end of top flow control rod 312 away from flow control frame 307 is movably connected to the end of bottom flow control rod 311 away from flow control plate 309. Flow control electric cylinder 313 is also movably installed on flow control frame 307. The end of telescopic rod of flow control electric cylinder 313 is movably connected to the movable connection of bottom flow control rod 311 and top flow control rod 312.
[0024] It also includes two recycling components symmetrically arranged on both sides of the float tin bath 501. The recycling components include a feeding conveyor belt 412 for conveying the cut glass fragments to the inside of the recycling cylinder 401. A support sealing cover plate 414 is fixedly and sealed on the top of the recycling cylinder 401. The support sealing cover plate 414 has a return inlet 415. One end of the feeding conveyor belt 412 extends above the return inlet 415, so that the glass fragments conveyed from the feeding conveyor belt 412 fall into the inside of the recycling cylinder 401 through the return inlet 415. A dust cover 411 is fitted on the outside of the return inlet 415. A crushing blade rotating sleeve 407, coaxially arranged with the recycling cylinder 401, is rotatably installed at the center of the supporting sealing cover plate 414. A recycling pipe 404 is rotatably arranged coaxially inside the crushing blade rotating sleeve 407. A recycling screw 402 is rotatably installed inside the recycling pipe 404, running from bottom to top. A recycling control motor 403 for driving the recycling screw 402 to rotate is fixedly installed at the bottom of the recycling cylinder 401. A separating screen 405 is fixedly installed on the lower middle part of the inner wall of the recycling cylinder 401. A crushing blade 406 is rotatably installed on the upper surface of the separating screen 405. The crushing blade 406 is fixed on the crushing blade rotating sleeve 407. A driven gear 410 is fixedly installed on the top of the crushing blade rotating sleeve 407. The driven gear 410 rotates and engages with the recycling pipe 404. A crushing control motor 408 is fixedly installed on the supporting sealing cover plate 414. A driving gear 409 that meshes with the driven gear 410 is fixedly installed on the output shaft of the crushing control motor 408. An inclined sliding groove 413 is fixed at the top of the recycling pipe 404. The lower end of the sliding groove 413 is located above the feeding trough 301.
[0025] The working principle of the float glass production equipment disclosed in this invention is as follows: the raw material is poured into the feeding trough 301, and then the feeding control motor 305 is started. The feeding control motor 305 drives the material passage 304 to rotate to a position aligned with the feeding channel 302, so that the raw material inside the feeding trough 301 enters the melting furnace 306 through the material passage 304 (multiple vibrating motors are provided on the inner wall of the feeding trough 301). The melting furnace 306 heats the glass raw material to form molten glass liquid. Molten glass flows into the float glass bath 501 through the outlet 310 (the flow rate of the molten glass at the outlet 310 can be controlled by the extension and retraction of the telescopic rod of the flow regulating cylinder 313). The molten glass spreads evenly on the surface of the molten glass inside the float glass bath 501. The temperature of the molten glass near the melting furnace 306 (molten glass inlet) is higher than that near the annealing furnace 601 (drawing end). The purpose of this is to maintain the good fluidity of the molten glass at a high temperature, so that it can spread evenly on the surface of the molten glass and avoid irregular flow or surface defects. The temperature in the middle area gradually decreases to ensure that the glass ribbon maintains a flat and stable thickness during the gradual cooling process. At the same time, the cooling rate of the molten glass is controlled to avoid thermal stress concentration. The temperature in the drawing end area is further reduced so that the glass has an appropriate cooling rate before entering the annealing furnace 601, in preparation for the subsequent annealing process. The float glass bath 501 is filled with slightly positive pressure nitrogen.
[0026] After annealing, the glass moves to the measuring assembly. The measuring assembly addresses the issue that the glass surface is not perfectly flat during cooling or production. Since the rotating measuring roller is in contact with the glass surface for measurement, if the glass surface convex, a gap exists between the lower surface of the glass and the conveyor roller 110. This results in an overestimation of the glass thickness, leading to measurement errors. The laser 109 in the measuring assembly emits light at an angle towards and through the glass, then illuminates the light sensor 108, generating a corresponding electrical signal. (The light sensor 108 typically uses a high-pixel camera sensor; the light emitted by the laser 109 generates an electrical signal at the corresponding position on the camera sensor, representing the pixel position. Since the pixel position is fixed, it can function as a ruler.) When the light enters the glass, it refracts (by controlling the extension rod of the adjusting cylinder 106, which in turn drives the adjusting arm 104 to swing, adjusting the arm...). Arm 104 drives the laser bracket 105 to swing, which in turn drives all the lasers 109 to swing, thereby adjusting the angle between the light emitted by the lasers 109 and the glass (preventing total internal reflection). The light then travels a distance inside the glass before reaching the light sensor 108. During this process, the light rays on the upper and lower sides of the glass are deflected. This deflection can be detected by the light sensor 108, and it is directly proportional to the glass thickness. The thicker the glass, the longer the propagation path of the light after refraction, resulting in a larger deflection. This measurement component enables non-contact measurement of glass thickness without considering the flatness of the glass surface, allowing for direct measurement of the glass thickness.
[0027] The glass, after its thickness has been measured, undergoes side cutting to create glass strips of equal width. An auxiliary component then measures the width of the glass. The glass sides rest against measuring rollers 202, which, via two measuring roller movable rods 203, drive a synchronizing rod 204 in linear motion. This is because the measuring sliding rod 207 is slidably mounted on the bow-shaped frame 201 via a measuring sliding rod bracket 206, ensuring a fixed movement of the synchronizing rod 204. A compression spring 205 provides a counterforce, maintaining close contact between the two measuring rollers 202 and the glass sides. A linear scale detects the displacement of the measuring sliding rod 207 relative to the measuring sliding rod bracket 206, thus measuring the width of the glass strip. The glass is then transversely cut to the desired length.
[0028] The cut glass fragments are conveyed to the recycling cylinder 401 via the feeding conveyor belt 412. The crushing control motor 408 is activated, and its output shaft drives the drive gear 409 to rotate. The drive gear 409 drives the driven gear 410 to rotate, which in turn drives the crushing blade rotating sleeve 407 to rotate. The rotation of the crushing blade rotating sleeve 407 drives all the crushing blades 406 to rotate. The crushing blades 406 break larger glass fragments into smaller pieces, which then fall to the bottom of the recycling cylinder 401 through the separating screen 405. At this time, the recycling control motor 403 is activated, and its output shaft drives the recycling screw 402 to rotate. The rotation of the recycling screw 402 conveys the glass fragments at the bottom of the recycling cylinder 401 along the recycling pipe 404 to the top of the recycling pipe 404, and then slides back down into the discharge trough 301 via the sliding groove 413, thus realizing the recycling of glass fragments.
Claims
1. A float glass production device, comprising a measuring assembly, characterized in that: The measuring assembly comprises two supporting side plates (101) arranged in parallel, and a plurality of conveying rollers (110) arranged in parallel are rotatably mounted between the two supporting side plates (101) for supporting the glass removed from the annealing furnace (601); A sunshade (102) is also fixedly mounted between the two supporting side plates (101), and two sides of the sunshade (102) are provided with hanging edges, and both hanging edges are provided with blackout curtains (103) for blocking external light from entering the sunshade (102); A light sensor bracket (107) is fixed to the top of the inner wall of the light shield (102); the lower surface of the light sensor bracket (107) is inclined; a plurality of light sensors (108) are equidistantly arranged on the lower surface of the light sensor bracket (107) along the width direction of the produced glass; and the same number of lasers (109) as the light sensors (108) are rotatably arranged between two adjacent conveying rollers (110); All lasers (109) are fixed on a laser bracket (105), the laser bracket (105) is rotatably matched with the supporting side plate (101), an adjusting electric cylinder (106) is rotatably mounted on the outer side surface of one of the supporting side plates (101), one end of the laser bracket (105) extends to the outer side of the supporting side plate (101), and an adjusting swing arm (104) is fixed to the end of the laser bracket (105) extending to the outer side of the supporting side plate (101), and the end of the adjusting swing arm (104) away from the laser bracket (105) is movably connected to the end of the telescopic rod of the adjusting electric cylinder (106); The measuring assembly is provided with an auxiliary assembly along the direction in which the glass moves. The auxiliary assembly comprises an arch frame (201), and two symmetrically arranged sliding through grooves (208) are provided on the arch frame (201); a measuring sliding rod bracket (206) is fixed in the middle of the arch frame (201), and a measuring sliding rod (207) is slidably mounted on the measuring sliding rod bracket (206); the arch frame (201) is also provided with a grating ruler for measuring the displacement between the measuring sliding rod (207) and the measuring sliding rod bracket (206); a driving synchronous rod (204) is fixed at one end of the measuring sliding rod (207), and a driving synchronous rod (204) is provided at one end of the measuring sliding rod (207). A compression spring (205) is fixed between the synchronization rod (204) and the measuring sliding rod bracket (206), the compression spring (205) is wrapped around the measuring sliding rod (207), and both ends of the pushing synchronization rod (204) are movably mounted with measuring roller movable rods (203); the ends of the two measuring roller movable rods (203) away from the pushing synchronization rod (204) are rotatably mounted with measuring rollers (202), the measuring rollers (202) are rollingly matched with the side edges of the glass, the measuring roller movable rods (203) are rotationally matched with the measuring rollers (202) via a rotating shaft, and the rotating shaft is slidingly matched in the sliding through groove (208); The invention also comprises a float tin bath (501), wherein the drawing end of the float tin bath (501) is connected to the annealing furnace (601), the molten glass inlet of the float tin bath (501) is connected to the melting furnace (306), a groove pool of molten glass is arranged inside the melting furnace (306), a feeding chute (301) is connected to the melting furnace (306), and is used to provide molten glass raw materials to the inside of the melting furnace (306), the feeding chute (301) and the melting furnace (306) are connected through a feeding channel (302), a blocking stem (303) is rotatably installed in the middle of the feeding channel (302), and a through hole (304) having the same width as the feeding channel (302) is provided on the blocking stem (303), and is used to control the glass raw materials inside the feeding chute (301) to fall into the melting furnace (306).
2. A float glass production equipment according to claim 1, characterized in that: A material discharge control motor (305) for driving the plugging core column (303) to rotate is also fixedly mounted on the material discharge chute (301); The interior of the melting furnace (306) is connected to the float tin bath (501) via a liquid flow port (310), so that the molten glass inside the melting furnace (306) flows into the float tin bath (501), wherein the liquid flow port (310) is provided with a flow regulating sealing plate (309), and the flow regulating sealing plate (309) is slidably matched with the melting furnace (306) to adjust the opening area of the liquid flow port (310); A flow regulating rack (307) is also fixed on the melting furnace (306), and two parallel guide slide bars (308) are slidably mounted on the flow regulating rack (307), and the two guide slide bars (308) are both fixed to the flow regulating sealing plate (309), and a top flow regulating rod (312) and a bottom flow regulating rod (311) are movably connected in the middle of the flow regulating rack (307) and the middle of the flow regulating sealing plate (309), respectively, wherein an end of the top flow regulating rod (312) away from the flow regulating rack (307) is movably connected to an end of the bottom flow regulating rod (311) away from the flow regulating sealing plate (309); A current regulating electric cylinder (313) is also movably mounted on the flow regulating frame (307), and the end of the telescopic rod of the current regulating electric cylinder (313) is movably connected to the movable connection between the bottom flow regulating rod (311) and the top flow regulating rod (312).
3. A float glass production equipment according to claim 2, characterized in that: It also includes two recovery components symmetrically arranged on both sides of the float tin bath (501), the recovery components including a feeding conveyor belt (412) for transferring the cut glass scraps to the inside of the recovery cylinder (401); A supporting sealing cover plate (414) is fixedly and sealedly installed on the top of the recovery barrel (401); a recovery feed opening (415) is provided on the supporting sealing cover plate (414); one end of the feeding conveyor belt (412) extends above the recovery feed opening (415), so that the glass fragments transmitted from the feeding conveyor belt (412) fall into the recovery barrel (401) through the recovery feed opening (415); and a dust cover (411) is provided on the outer side of the recovery feed opening (415).
4. A float glass production equipment according to claim 3, characterized in that: A crushing blade rotating sleeve (407) coaxially arranged with the recovery barrel (401) is rotatably mounted at the center position of the supporting sealing cover plate (414); a recovery pipe (404) is rotatably mounted coaxially inside the crushing blade rotating sleeve (407); a recovery screw (402) is rotatably mounted passing through the recovery pipe (404) from bottom to top; and a recovery control motor (403) for driving the recovery screw (402) to rotate is fixedly mounted at the bottom of the recovery barrel (401).
5. The float glass production equipment according to claim 4, characterized in that: A partition screen (405) is fixedly mounted on the middle and lower part of the inner wall of the recovery cylinder (401); a crushing blade (406) is rotatably mounted on the upper surface of the partition screen (405); the crushing blade (406) is fixed on a crushing blade rotating sleeve (407); a driven gear (410) is fixedly mounted on the top of the crushing blade rotating sleeve (407); the driven gear (410) is rotatably matched with the recovery pipe (404); a crushing control motor (408) is fixedly mounted on the support sealing cover plate (414); a driving gear (409) meshing with the driven gear (410) is fixedly mounted on the output shaft of the crushing control motor (408); an inclined sliding groove (413) is fixedly mounted on the top of the recovery pipe (404); the lower end of the sliding groove (413) is arranged above the discharge chute (301).
6. A float glass production process, characterized in that: The float glass production equipment according to claim 5 comprises the following steps: S1, pouring glass raw materials into a feeding trough (301), and starting a feeding control motor (305) to allow the raw materials in the feeding trough to pass through a feeding hole (304) and enter a melting furnace (306); S2, the molten glass liquid flows into the float tin bath (501) through the liquid flow port (310); The molten glass liquid spreads on the surface of the tin liquid. The tin liquid temperature near one end of the melting furnace is higher, which ensures the fluidity of the molten glass and avoids surface defects. S3, the cooled glass enters the measuring assembly for thickness detection; the laser (109) emits light, which passes through the glass and then irradiates the light sensor (108), and the thickness of the glass is calculated by the refraction offset of the light; S4. By adjusting the swing angle of the laser, total reflection can be avoided to ensure the accuracy of measurement; the measuring component can realize non-contact glass thickness detection; S5. After the thickness is measured, the width of the side of the glass is detected by the auxiliary component. The side of the glass is pressed against the measuring roller (202), and the width of the glass strip is measured by using a grating ruler by measuring the displacement of the sliding rod (207).
Citation Information
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