A device and method for controlling the flow rate of molten glass in tempered glass production.

Abstract

This invention discloses a molten glass flow control device and method for tempered glass production, belonging to the field of tempered glass production technology. The molten glass flow control device includes a molten material channel with a lifting hole on its upper surface. A flow control valve assembly is installed within the lifting hole, and lifting components are installed on both sides of the upper surface of the lifting hole. These lifting components are used to adjust the vertical position of the flow control valve assembly. This invention solves the problem of the durability of existing gate valves. The proposed molten glass flow control device and method for tempered glass production uses a baffle plate and a baffle roller to simultaneously block the molten glass. The baffle plate drives the baffle roller to move up and down to adjust the flow rate. Simultaneously, the baffle roller can rotate at the lower end of the baffle plate, and the rotation of the baffle roller is controlled by a drive component, reducing wear on the baffle roller.

Description

Technical Field

[0001] This invention relates to the field of tempered glass production technology, specifically to a molten glass flow control device and control method for tempered glass production. Background Technology

[0002] Precise control of the molten glass flow rate is required during tempering. In normal production, the gate is moved slowly up and down by adjusting the transmission device to stably control the required glass flow rate for forming. When the flow control gate controls the glass flow, its lower part is constantly immersed in the high-temperature molten glass. Due to the long-term erosion by the molten glass, the refractory material surface of the gate is corroded, especially at the bottom of the gate where the molten glass flows faster in the center of the channel. This causes the gate's adjustment accuracy to gradually deteriorate over time.

[0003] Chinese patent CN102329064B discloses a glass flow control device and a method for extending its service life. The method improves the service life of the gate by setting a platinum-rhodium alloy layer. However, the molybdenum-rhodium alloy layer is not easy to maintain and is prone to bulging. Moreover, it is easy to react with elemental metals at high temperatures. Summary of the Invention

[0004] The purpose of this invention is to provide a molten glass flow control device and method for tempered glass production. By controlling the rotation of the barrier roller through a drive component, the flowing molten glass no longer washes over a single position, reducing the wear of the barrier roller and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a molten glass flow control device for tempered glass production, comprising a molten material channel, wherein a lifting hole is provided on the upper surface of the molten material channel, a flow control valve assembly is installed in the lifting hole, and lifting components are installed on both sides of the upper surface of the lifting hole. The lifting components are used to adjust the vertical position of the flow control valve assembly. The flow control valve assembly includes a baffle plate, a baffle roller, and a drive assembly. The baffle plate drives the baffle roller to move up and down to adjust the flow rate, and the drive assembly controls the rotation of the baffle roller.

[0006] Preferably, the upper end of the barrier plate has a through-hole for lifting, and a push plate is fixedly connected to the upper end of the barrier plate, with the push plate connected to the lifting assembly.

[0007] Preferably, the lower end of the barrier plate is provided with an arc-shaped groove that matches the barrier roller. The arc-shaped groove engages with the barrier roller. Both ends of the barrier plate are provided with extension arms. The lower end of the extension arm is movably connected to the barrier roller. A sealing plate is connected to the side of the extension arm near the barrier roller. The lower end of the sealing plate is flush with the lower end of the barrier roller.

[0008] Preferably, the sidewall of the melting channel is a double-layer plate structure. A movable groove is provided on the inner sidewall of the melting channel. The movable groove is engaged with the extension arm. A sealing groove is provided on the inner wall of the melting channel near the lower end of the movable groove. The sealing groove is movably connected with the sealing plate.

[0009] Preferably, one end of the barrier roller is fixedly connected to a long slide groove, which is placed between the two sidewalls of the molten material channel.

[0010] Preferably, the driving assembly includes a first motor, a rotating rod, and a slider. The first motor is mounted on the outer sidewall of the molten material channel. The output end of the first motor passes through the outer sidewall of the molten material channel and is movably connected to one end of the rotating rod. The other end of the rotating rod is movably connected to the slider, and the slider is movably connected to the long slide groove.

[0011] Preferably, the lifting assembly includes lead screws symmetrically arranged on both sides of the lifting hole, a second motor connected to one of the lead screws, and a lifting frame meshing with the lead screws. The two ends of the lead screws are fixedly connected to the upper surface of the molten material channel through bearing seats, and a pulley is fixedly connected to one end of the lead screw.

[0012] Preferably, the upper end of the lifting frame is movably connected to a T-shaped block, which is movably connected to a lifting plate, and the lower end of the lifting frame is movably connected to a threaded cylinder, which meshes with a lead screw.

[0013] Preferably, the lower surface of the push plate is provided with a T-shaped groove that matches the T-shaped block.

[0014] Another technical problem to be solved by the present invention is to provide a control method for a molten glass flow control device for tempered glass production, comprising the following steps:

[0015] S1: The lifting component moves the barrier plate upward, and the barrier roller is separated from the bottom of the innermost layer of the molten material channel by a certain distance. After the barrier roller moves to the required height, the lifting component stops working.

[0016] S2: The drive assembly drives the barrier roller to rotate in the direction of the molten glass flow, continuously changing the contact surface between the barrier roller and the molten glass, and the molten glass flows out of the melt channel from below the barrier roller.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The valve assembly employs a combination of baffle plates and baffle rollers. Both the baffle plates and baffle rollers simultaneously act as barriers against the molten glass. The baffle plates drive the baffle rollers to move up and down to adjust the flow rate. Simultaneously, the baffle rollers can rotate at the lower end of the baffle plates, controlled by a drive assembly. This prevents the flowing molten glass from scouring a single location, reducing wear on the baffle rollers and improving the overall service life of the flow control valve assembly. The sidewalls of the molten material channel have a double-layer plate structure, which heats and insulates the molten glass while providing space for the long slide and rotating rod. The long slide is movably connected to the slider, allowing the baffle rollers to rotate both when moving up and down. The first motor is fixed in position, ensuring proper heat insulation and extending its service life. Attached Figure Description

[0019] Figure 1 This is an overall structural diagram of the molten glass flow control device of the present invention;

[0020] Figure 2 This is a structural diagram of the inner wall of the molten material channel of the present invention;

[0021] Figure 3 This is a partial cross-sectional view of the molten glass flow control device of the present invention;

[0022] Figure 4 For the present invention Figure 2 Exploded view;

[0023] Figure 5 This is a partial cross-sectional view of the molten material channel of the present invention;

[0024] Figure 6 This is a structural diagram of the flow control valve assembly of the present invention.

[0025] In the diagram: 1. Melting channel; 11. Lifting hole; 12. Movable groove; 13. Sealing groove; 2. Flow control valve assembly; 21. Baffle plate; 211. Lifting plate; 212. Extension arm; 213. Sealing plate; 22. Baffle roller; 221. Long slide groove; 23. Drive assembly; 231. First motor; 232. Rotating rod; 233. Sliding block; 3. Lifting assembly; 31. Lead screw; 311. Pulley; 32. Second motor; 33. Lifting frame; 331. T-block; 332. Threaded cylinder. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] To address the issues of extending gate lifespan using existing methods that employ molybdenum-rhodium alloy layers, which are difficult to maintain, prone to bulging, and susceptible to reaction with elemental metals at high temperatures, please refer to [the relevant documentation / reference needed]. Figures 1-6 This embodiment provides the following technical solution:

[0028] In this embodiment, the molten glass flow control device for tempered glass production includes a molten material channel 1. A lifting hole 11 is provided on the upper surface of the molten material channel 1. The lifting hole 11 is sealed to a baffle plate 21. The baffle plate 21 can move up and down without affecting the airtightness. A flow control valve assembly 2 is installed inside the lifting hole 11. Lifting components 3 are installed on both sides of the upper surface of the lifting hole 11. The lifting components 3 are used to adjust the up and down position of the flow control valve assembly 2. The flow control valve assembly 2 includes a baffle plate 21, a baffle roller 22, and a drive assembly 23. The baffle plate 21 drives the baffle roller 22 to move up and down to adjust the flow rate. The drive assembly 23 controls the rotation of the baffle roller 22.

[0029] In this embodiment, the upper end of the baffle plate 21 passes through the lifting hole 11. The baffle plate 21 moves up or down within the lifting hole 11. A pusher plate 211 is fixedly connected to the upper end of the baffle plate 21. The pusher plate 211 is connected to the lifting assembly 3. The lifting assembly 3 pushes the baffle plate 21 up or down through the pusher plate 211. The higher the baffle plate 21 moves up, the greater the flow rate of the molten glass.

[0030] In this embodiment, the lower end of the barrier plate 21 is provided with an arc-shaped groove that matches the barrier roller 22. The arc-shaped groove engages with the barrier roller 22, and the barrier roller 22 rotates within the arc-shaped groove. The edge of the arc-shaped groove can scrape the surface of the barrier roller 22 to prevent molten glass from sticking to the surface of the barrier roller 22. Both ends of the barrier plate 21 are provided with extension arms 212. The lower end of the extension arm 212 is movably connected to the barrier roller 22. A sealing plate 213 is connected to the side of the extension arm 212 near the barrier roller 22. The lower end of the sealing plate 213 is flush with the lower end of the barrier roller 22. The barrier plate 21 drives the barrier roller 22 to move in position synchronously through the extension arm 212, and the sealing plate 213 moves in position along with the barrier roller 22.

[0031] In this embodiment, the sidewall of the molten material channel 1 is a double-layer plate structure, and a heating device is provided between the double-layer plates to continuously heat the molten glass in the molten material channel 1. A movable groove 12 is provided on the inner sidewall of the molten material channel 1. The movable groove 12 is engaged with the extension arm 212. The extension arm 212 moves up and down along the movable groove 12. A sealing groove 13 is provided on the inner wall of the molten material channel 1 near the lower end of the movable groove 12. The sealing groove 13 is movably connected with the sealing plate 213. The sealing plate 213 moves up and down along the sealing groove 13. After the extension arm 212 moves up, the lower end of the movable groove 12 is exposed. The sealing plate 213 moves up and covers the movable groove 12 to prevent the molten glass from entering between the double-layer plates of the molten material channel 1.

[0032] In this embodiment, one end of the barrier roller 22 is fixedly connected to a long slide groove 221. The long slide groove 221 is placed between the double sidewalls of the molten material channel 1. The long slide groove 221 has a space for movement between the double sidewalls of the molten material channel 1. When the long slide groove 221 rotates, it can drive the barrier roller 22 to rotate. The rotation of the barrier roller 22 is consistent with the flow direction of the molten glass, thereby reducing the scouring of the molten glass on it. Moreover, the rotating barrier roller 22 continuously changes the position of contact with the molten glass, which can extend the service life of the barrier roller 22.

[0033] In this embodiment, the drive assembly 23 includes a first motor 231, a rotating rod 232, and a slider 233. The first motor 231 is mounted on the outer sidewall of the molten material channel 1. The first motor 231 is far away from the high-temperature molten glass, which extends the service life of the first motor 231. The output end of the first motor 231 passes through the outer sidewall of the molten material channel 1 and is movably connected to one end of the rotating rod 232. The other end of the rotating rod 232 is movably connected to the slider 233. The slider 233 is movably connected to the long slide 221. When the first motor 231 rotates, it drives the rotating rod 232 to rotate, which in turn drives the long slide 221 to rotate through the slider 233. The long slide 221 rotates around the central axis of the barrier roller 22, and the slider 233 moves its position on the long slide 221 to adapt to the position and height of the barrier roller 22.

[0034] In this embodiment, the lifting assembly 3 includes lead screws 31 symmetrically arranged on both sides of the lifting hole 11, a second motor 32 connected to one of the lead screws 31, and a lifting frame 33 meshing with the lead screws 31. The two ends of the lead screws 31 are fixedly connected to the upper surface of the molten material channel 1 through bearing seats. One end of the lead screw 31 is fixedly connected to a pulley 311. The two lead screws 31 are connected through a belt sleeved on the pulley 311. The second motor 32 drives one of the lead screws 31 to rotate. Through belt transmission, the two lead screws 31 rotate simultaneously.

[0035] In this embodiment, a T-shaped block 331 is movably connected to the upper end of the lifting frame 33, and the T-shaped block 331 is movably connected to the lifting plate 211. A threaded cylinder 332 is movably connected to the lower end of the lifting frame 33, and the threaded cylinder 332 meshes with the lead screw 31. The threads at both ends of the lead screw 31 are in opposite directions. When the lead screw 31 rotates, it can simultaneously drive the threaded cylinder 332 on the lead screw 31 to move towards or in opposite directions. When moving towards each other, the lifting frame 33 rises, pushing the lifting plate 211 to move upward. The upper end of the lifting frame 33 drives the T-shaped blocks 331 to move closer to each other, and the T-shaped blocks 331 move to a position on the lifting plate 211.

[0036] In this embodiment, the lower surface of the push plate 211 is provided with a T-shaped groove that matches the T-shaped block 331, and the T-shaped groove limits the movement path of the T-shaped block 331.

[0037] To better illustrate the control process of a molten glass flow control device for tempered glass production, this embodiment proposes a control method for the molten glass flow control device for tempered glass production, including the following steps:

[0038] The lifting assembly 3 moves the baffle plate 21 upward, and the two lead screws 31 rotate simultaneously, causing the lifting frame 33 to rise. The baffle plate 21 moves the baffle roller 22 upward, and the baffle roller 22 is separated from the bottom of the innermost layer of the molten material channel 1 by a certain distance. The baffle roller 22 and the baffle plate 21 simultaneously block the molten glass, and the molten glass flows from below the baffle roller 22. After the baffle roller 22 moves to the required height, the lifting assembly 3 stops working, keeping the distance between the baffle roller 22 and the bottom of the molten material channel 1 unchanged, so the flow rate remains unchanged. When the flow rate needs to be changed, the baffle plate 21 is controlled to move upward or downward for adjustment. The drive assembly 23 drives the baffle roller 22 to rotate with the flow direction of the molten glass. The baffle roller 22 pushes the molten glass towards the outlet of the molten material channel 1. The baffle roller 22 continues to rotate, constantly changing the contact surface between the baffle roller 22 and the molten glass. The molten glass flows out of the molten material channel 1 from below the baffle roller 22, and the molten glass does not wash away the fixed position of the baffle roller 22.

[0039] In summary, the valve assembly structure employing a combination of baffle plate 21 and baffle roller 22 simultaneously acts as a barrier to the molten glass. The baffle plate 21 drives the baffle roller 22 to move up and down to adjust the flow rate. Simultaneously, the baffle roller 22 can rotate at the lower end of the baffle plate 21, controlled by the drive assembly 23. This prevents the flowing molten glass from scouring a single location, reducing wear on the baffle roller 22 and improving the overall service life of the flow control valve assembly 2. The sidewall of the molten material channel 1 has a double-layer plate structure, which can heat and insulate the molten glass and provide space for the long slide 221 and the rotating rod 232. The long slide 221 is movably connected to the slider 233, allowing the baffle roller 22 to rotate both up and down. The first motor 231 is fixed in position, effectively providing heat insulation and extending its service life.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molten glass flow control device for tempered glass production, comprising a molten material channel (1), characterized in that: The upper surface of the molten material channel (1) is provided with a lifting hole (11), and a flow control valve group (2) is installed in the lifting hole (11). Lifting components (3) are installed on both sides of the upper surface of the lifting hole (11). The lifting components (3) are used to adjust the up and down position of the flow control valve group (2). The flow control valve group (2) includes a baffle plate (21), a baffle roller (22) and a drive component (23). The baffle plate (21) drives the baffle roller (22) to move up and down to adjust the flow rate, and the drive component (23) controls the baffle roller (22) to rotate. The upper end of the barrier plate (21) passes through the lifting hole (11). The upper end of the barrier plate (21) is fixedly connected to the lifting plate (211). The lifting plate (211) is connected to the lifting assembly (3). The lower end of the barrier plate (21) is provided with an arc-shaped groove that matches the barrier roller (22). The arc-shaped groove engages with the barrier roller (22). Both ends of the barrier plate (21) are provided with extension arms (212). The lower end of the extension arm (212) is movably connected to the barrier roller (22). A sealing plate (213) is connected to the side of the extension arm (212) near the barrier roller (22). The lower end of the sealing plate (213) is flush with the lower end of the barrier roller (22). The sidewall of the melting channel (1) is a double-layer plate structure. A movable groove (12) is provided on the inner sidewall of the melting channel (1). The movable groove (12) is engaged with the extension arm (212). A sealing groove (13) is provided on the inner wall of the melting channel (1) near the lower end of the movable groove (12). The sealing groove (13) is movably connected with the sealing plate (213). One end of the barrier roller (22) is fixedly connected to a long chute (221), which is placed between the double sidewalls of the molten material channel (1).

2. The molten glass flow control device for tempered glass production according to claim 1, characterized in that: The drive assembly (23) includes a first motor (231), a rotating rod (232), and a slider (233). The first motor (231) is mounted on the outer sidewall of the molten material channel (1). The output end of the first motor (231) passes through the outer sidewall of the molten material channel (1) and is movably connected to one end of the rotating rod (232). The other end of the rotating rod (232) is movably connected to the slider (233). The slider (233) is movably connected to the long slide groove (221).

3. The molten glass flow control device for tempered glass production according to claim 1, characterized in that: The lifting assembly (3) includes lead screws (31) symmetrically arranged on both sides of the lifting hole (11), a second motor (32) connected to one of the lead screws (31), and a lifting frame (33) meshing with the lead screws (31). The two ends of the lead screws (31) are fixedly connected to the upper surface of the molten material channel (1) through bearing seats, and a pulley (311) is fixedly connected to one end of the lead screws (31).

4. The molten glass flow control device for tempered glass production according to claim 3, characterized in that: The upper end of the lifting frame (33) is movably connected to a T-shaped block (331), which is movably connected to the lifting plate (211). The lower end of the lifting frame (33) is movably connected to a threaded cylinder (332), which meshes with the lead screw (31).

5. The molten glass flow control device for tempered glass production according to claim 4, characterized in that: The lower surface of the push plate (211) is provided with a T-shaped groove that matches the T-shaped block (331).

6. A control method for a molten glass flow control device for tempered glass production as described in any one of claims 1-5, characterized in that, Includes the following steps: S1: The lifting component (3) moves the baffle plate (21) upward, and the baffle roller (22) is pulled away from the bottom of the innermost layer of the molten material channel (1) by a certain distance. After the baffle roller (22) moves to the required height, the lifting component (3) stops working. S2: The driving component (23) drives the baffle roller (22) to rotate with the direction of the molten glass flow, and continuously changes the contact surface between the baffle roller (22) and the molten glass. The molten glass flows out of the molten material channel (1) from below the baffle roller (22).

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