Conveying line, intelligent conveying method for glass heat treatment, glass annealing conveying process

Abstract

The present application relates to the technical fields of intelligent heat treatment production line, and discloses a conveying production line, a glass heat treatment intelligent conveying method and a glass annealing conveying process. In each isothermal group, the conveying roller shafts rotate at the same speed. Between two adjacent isothermal groups, the two same-level driving mechanisms in the successive positions are connected through an adjustable shaft coupling, and the differential ratio of the same-level driving mechanisms between the two adjacent isothermal groups is adjusted, so that along the conveying direction of the production line, the speed increasing or decreasing state of the conveying roller shafts in the next isothermal group relative to the conveying roller shafts in the current isothermal group is the same as the speed increasing or decreasing state of the conveying roller shafts in the current isothermal group relative to the conveying roller shafts in the previous isothermal group, thereby effectively coordinating the heat treatment process in each isothermal group, and the speed of the conveying roller shafts in each isothermal group conveying the workpiece can be adjusted according to the required heat treatment temperature, so as to effectively coordinate the heat treatment process of the workpiece.

Description

Technical Field

[0001] This invention relates to the field of intelligent heat treatment production line technology, specifically to a conveying production line, an intelligent conveying method for glass heat treatment, and a glass annealing conveying process. Background Technology

[0002] Traditional conveyor production lines are typically based on chain, roller, or belt conveyor systems, using motors to drive the continuous or intermittent movement of glass. These systems are often designed with simplicity, reliability, and low cost in mind, and therefore initially employed constant speed operation. Heat treatment, as a core process in modern manufacturing, is widely used in the processing of materials such as metals, glass, and ceramics. By precisely controlling the heating, holding, and cooling processes, the microstructure of the material is altered to obtain the desired mechanical properties, wear resistance, or corrosion resistance. With the rise of industrial automation technology, semi-automated and even intelligent heat treatment production lines combine basic conveyor belt and roller systems with PLCs (Programmable Logic Controllers) to achieve continuous material transport and simple control.

[0003] Glass heat treatment is one of the core processes in the glass industry, mainly including annealing, tempering, and quenching. Its purpose is to eliminate internal stress in the glass, improve mechanical properties, or achieve specific optical characteristics. In these processes, the conveyor line plays a crucial role, responsible for the smooth and precise movement of glass products within heat treatment equipment (such as annealing furnaces and tempering furnaces), ensuring uniform temperature control and process stability.

[0004] Glass heat treatment is a multi-stage process, with each stage having different requirements for temperature, time, and transport speed. For example, in the annealing process, glass needs to undergo multiple stages such as heating, holding, and slow cooling, with significant differences in the ideal transport speed for each stage. A constant-speed conveyor line cannot adapt to these dynamic demands, leading to low process efficiency, unstable product quality, and even defects such as cracking or deformation. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a conveying production line, an intelligent conveying method for glass heat treatment, and a glass annealing conveying process.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A conveyor production line includes several conveyor chambers, each of which is equipped with a rolling conveyor mechanism. Each conveyor chamber has a corresponding drive mechanism on its outer side. Each rolling conveyor mechanism includes several conveyor rollers, and the corresponding drive mechanisms drive each conveyor roller located within the same conveyor chamber to rotate at the same speed. Each group of conveyor chambers is configured as a temperature-controlled group. Within each temperature-controlled group, adjacent corresponding drive mechanisms are connected by a constant velocity coupling. Between two adjacent temperature-controlled groups, two drive mechanisms in a successive position... The drive mechanisms of the same level are connected by adjustable couplings; a production line drive motor is also provided on one side of the conveying chamber at the first end, and the production line drive motor is poweredly connected to the drive mechanism of the same level at the first end through the adjustable couplings; the differential ratio of each of the adjustable couplings can be adjusted independently, and along the production line conveying direction, the speed increase or decrease state of the conveying roller shaft in the next temperature group relative to the conveying roller shaft in the current temperature group is the same as the speed increase or decrease state of the conveying roller shaft in the current temperature group relative to the conveying roller shaft in the previous temperature group.

[0008] Preferably, a lifting bracket is provided at the bottom of the conveying chamber, an insulation shell is provided outside the conveying chamber, an airflow circulation unit is provided at the top of the insulation shell, and a heating unit is provided inside the insulation shell; the heating unit is used to provide the heat treatment temperature inside the conveying chamber, and the airflow circulation unit is used to provide airflow circulation inside the conveying chamber to maintain the uniform temperature inside the conveying chamber while discharging the waste gas inside the conveying chamber.

[0009] Preferably, two adjacent conveying chambers are interconnected, and an isolation air curtain is provided on the side of the two conveying chambers located at the beginning and end that is closer to the outside. The airflow temperature output by the isolation air curtain is equal to the heat treatment temperature inside the corresponding conveying chamber. The heating unit includes several electric heating tubes, and the airflow circulation unit includes at least one intake fan and one exhaust fan. Each exhaust fan corresponding to each conveying chamber is connected to an exhaust pipe.

[0010] Preferably, the rolling conveying mechanism further includes a rolling synchronization unit and a driven roller shaft. The rolling synchronization unit includes at least one input shaft and a synchronization shaft. Each input shaft meshes with the synchronization shaft via a bevel gear set. Each synchronization shaft meshes with each of the conveying roller shafts via a synchronization gear set. A synchronization gear is provided at the end of the conveying roller shaft away from the synchronization gear set, and a driven gear is provided at the end of the driven roller shaft away from the synchronization gear set. The synchronization gear and the driven gear are connected and driven by a synchronization toothed belt. The gear specifications of the synchronization gear and the driven gear are the same.

[0011] Preferably, within the same rolling conveying mechanism, the driven roller shafts and the conveying roller shafts rotate at the same speed; a plurality of support rollers are fixedly arranged on the outer side of the driven roller shafts, the outer diameter of the support rollers is the same as the outer diameter of the conveying roller shafts, and there is a heat dissipation gap between adjacent support rollers.

[0012] Preferably, the same-level drive mechanism includes a mounting bracket, and a connecting roller shaft is mounted on the top of the mounting bracket; within the same temperature group, two adjacent connecting roller shafts are connected and fixed by a constant velocity coupling fixed on the top of the mounting bracket; between two adjacent temperature groups, two connecting roller shafts in a succession position are connected by an adjustable coupling; each input shaft is provided with an input gear at one end extending out of the conveying chamber, and at least one connecting helical gear is sleeved on the outside of the connecting roller shaft; outside the same conveying chamber, each connecting helical gear meshes with each input gear.

[0013] Preferably, a lubrication groove is provided inside the mounting bracket and at the bottom of each of the input gears, and a mounting cover is rotatably provided at the top of the lubrication groove; a lubricant is provided inside the lubrication groove, and the bottom of each of the input gears penetrates the mounting cover and extends below the surface of the lubricant inside the lubrication groove, so that the lubricant can lubricate the meshing part of the input gear and the connecting helical gear along with the input gear.

[0014] Preferably, the adjustable coupling includes a power input shaft and a power output shaft, which are on the same axis. The power input shaft and the power output shaft are respectively connected to two drive mechanisms of the same level on both sides. The adjustable coupling also includes a drive gear set, a driven gear set, and a return gear. The drive gear set is coaxially fixed with the power input shaft, and the return gear is coaxially fixed with the power output shaft. The driven gear set is movable and maintains meshing with the drive gear set during movement, and adjusts the differential ratio between the driven gear set and the drive gear set during movement. The driven gear set maintains meshing with the return gear during movement, and the differential ratio between the driven gear set and the return gear remains constant during movement.

[0015] A smart conveying method for glass heat treatment, using the aforementioned conveying production line to transport glass during the heat treatment process, includes the following steps:

[0016] Preheat the interior of each conveying chamber. According to the progress of glass heat treatment, control the temperature of each conveying chamber in each temperature group to the required temperature, and control the temperature of each conveying chamber in each temperature group to be the same.

[0017] Along the glass conveying direction, the speed of each conveying roller within each temperature group conveying glass is adjusted to the required speed by adjusting the differential ratio of each adjustable coupling.

[0018] The glass is conveyed sequentially in each conveying chamber and undergoes heat treatment during its movement within each conveying chamber.

[0019] A glass annealing conveying process, using the aforementioned conveying production line to convey and anneal glass in an annealing environment, includes the following steps:

[0020] Preheat the interior of each conveying chamber. According to the glass annealing process, control the temperature of each conveying chamber in each isothermal group to adjust to the required temperature so that the temperature of each conveying chamber in each isothermal group gradually decreases.

[0021] Along the glass conveying direction, the differential speed ratio of each adjustable coupling is adjusted so that the speed of each conveying roller conveying glass in each temperature group decreases sequentially.

[0022] During the glass transport process in each transport chamber, it is annealed in the annealing environment provided by each transport chamber.

[0023] Compared with existing technologies, this invention provides a conveying production line, an intelligent conveying method for glass heat treatment, and a glass annealing conveying process, which have the following beneficial effects:

[0024] 1. In this type of conveyor production line, within each temperature-controlled group, adjacent drive mechanisms of the same level are connected by constant-speed couplings, ensuring that the speeds of adjacent drive mechanisms within the same temperature-controlled group are equal. This drives the conveyor rollers within the same temperature-controlled group to rotate at the same speed. Between two adjacent temperature-controlled groups, the two drive mechanisms at the successive position are connected by adjustable couplings. This allows for adjustment of the differential speed ratio between the drive mechanisms of adjacent temperature-controlled groups, ensuring that the speed increase or decrease of the conveyor rollers in the later temperature-controlled group relative to the current temperature-controlled group is the same as the speed increase or decrease of the conveyor rollers in the current temperature-controlled group relative to the previous temperature-controlled group. This effectively coordinates with the heat treatment process within each temperature-controlled group and allows for adjustment of the conveyor roller speed of each temperature-controlled group according to the required heat treatment temperature, thus effectively coordinating with the heat treatment process.

[0025] 2. In this type of conveyor production line, the isolation air curtains installed on the side of the two conveyor chambers at the beginning and end closest to the outside ensure that the airflow temperature output by the isolation air curtains is equal to the heat treatment temperature provided by the heating unit inside the corresponding conveyor chamber. This effectively prevents the temperature and gas from escaping from the conveyor chamber. Through the combined action of the intake and exhaust fans in the airflow circulation unit, the airflow circulation inside the conveyor chamber is promoted to maintain a uniform temperature inside the conveyor chamber, ensuring the thermal stability of the workpiece during the conveying process. At the same time, the exhaust gas inside the conveyor chamber is discharged in a timely manner, and the exhaust gas during the heat treatment process can be concentrated and discharged from the exhaust pipe for treatment, ensuring the effectiveness of the workpiece heat treatment process.

[0026] 3. In this type of conveyor production line, within the same rolling conveyor mechanism, the input rotational speed of the input shaft can be transmitted through the bevel gear set to drive the synchronous shaft to rotate. Since the synchronous shaft and each conveyor roller shaft are meshed through the synchronous gear set, the rotational speed of each conveyor roller shaft is equal. Furthermore, because the synchronous gears and driven gears have the same gear specifications and are connected by a synchronous toothed belt, the rotational speed of each driven roller shaft is the same as that of each conveyor roller shaft. Moreover, the outer diameter of the support rollers is the same as that of the conveyor roller shafts. This allows for stable speed conveying of workpieces within the same rolling conveyor mechanism. In practical use, the support rollers located on the outside of the driven roller shafts, the heat dissipation gaps between the support rollers, and the gaps between the driven roller shafts and adjacent conveyor roller shafts provide a larger contact area with the conveying chamber, thus enabling more effective heat treatment of the conveyed workpieces.

[0027] 4. In this type of conveyor production line, outside the same conveyor chamber, each connecting helical gear meshes with each input gear, thereby ensuring that the rotational speeds of each conveyor roller and each driven roller within the same temperature group are the same. During the process of each input gear moving in and out of the lubrication tank, the lubricant can lubricate the meshing points between the input gear and the connecting helical gear, reducing gear contact wear and ensuring the driving effect on each conveyor roller and each driven roller. Between two adjacent temperature groups, the driven gear set is moved to adjust the ratio of the rotational speed input from the power input shaft to the rotational speed output from the power output shaft, thereby coordinating with the heat treatment process within each temperature group to adjust the speed at which the conveyor rollers within each temperature group transport the workpiece. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of a conveyor production line according to the present invention;

[0029] Figure 2 This is a partial structural schematic diagram of a conveyor production line according to the present invention;

[0030] Figure 3 This is one of the three-dimensional structural schematic diagrams of a conveying chamber in a conveying production line according to the present invention;

[0031] Figure 4 This is a second three-dimensional structural schematic diagram of a conveying chamber in a conveying production line according to the present invention;

[0032] Figure 5 This is a three-dimensional structural diagram of a rolling conveying mechanism and a corresponding drive mechanism for a conveying production line according to the present invention.

[0033] Figure 6 This is a three-dimensional structural schematic diagram of a peer drive mechanism for a conveyor production line according to the present invention;

[0034] Figure 7 For the present invention Figure 6 Enlarged view of part A;

[0035] Figure 8 This is a schematic diagram of the transmission structure of a rolling conveying mechanism and a corresponding drive mechanism for a conveying production line according to the present invention.

[0036] Figure 9 This is a schematic diagram of the internal structure of an adjustable coupling for a conveyor production line according to the present invention.

[0037] In the diagram: 1. Conveying chamber; 11. Lifting bracket; 12. Insulation shell; 13. Airflow circulation unit; 131. Intake fan; 132. Exhaust fan; 14. Isolation air curtain; 15. Exhaust pipe; 2. Rolling conveyor mechanism; 21. Conveying roller shaft; 211. Synchronizing gear; 22. Rolling synchronization unit; 221. Input shaft; 222. Synchronizing shaft; 223. Bevel gear set; 224. Synchronizing gear set; 225. Input gear; 23. Driven roller shaft; 231. Driven gear; 232. Support roller; 3. Same-stage drive mechanism; 31. Mounting bracket; 32. Connecting roller shaft; 321. Connecting helical gear; 33. Lubrication groove; 34. Mounting cover; 4. Constant velocity coupling; 5. Adjustable coupling; 51. Power input shaft; 52. Power output shaft; 53. Drive gear set; 54. Driven gear set; 55. Reset gear. Detailed Implementation

[0038] 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.

[0039] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes a conveying production line, an intelligent conveying method for glass heat treatment, and a glass annealing conveying process.

[0040] Example 1:

[0041] Please see Figures 1-9 A conveying production line includes several conveying chambers 1, each conveying chamber 1 having a rolling conveying mechanism 2 inside, and a drive mechanism 3 of the same level outside each conveying chamber 1. Each rolling conveying mechanism 2 includes several conveying rollers 21, and the drive mechanism 3 of the same level can drive each conveying roller 21 located in the same conveying chamber 1 to rotate at the same speed. Each group of several conveying chambers 1 is configured as a temperature-controlled group, and within each temperature-controlled group, adjacent drive mechanisms 3 of the same level are connected by a constant velocity coupling 4. Between two adjacent temperature-controlled groups, the components in the successive positions... Two drive mechanisms 3 of the same level are connected by an adjustable coupling 5; a production line drive motor is also provided on one side of the conveying chamber 1 at the first end, and the production line drive motor is powered to the drive mechanism 3 of the same level at the first end through the adjustable coupling 5; the differential ratio of each adjustable coupling 5 can be adjusted independently, and along the conveying direction of the production line, the speed increase or decrease state of the conveying roller shaft 21 in the next temperature group relative to the conveying roller shaft 21 in the current temperature group is the same as the speed increase or decrease state of the conveying roller shaft 21 in the current temperature group relative to the conveying roller shaft 21 in the previous temperature group.

[0042] In practical use, along the conveying direction of the production line, the speed of each conveying roller 21 increases or decreases (the rotational speed of two conveying rollers 21 can be equal). During use, adjustments are made according to the actual conveying speed of each rolling conveyor 2. Specifically, the power output from the production line drive motor is input to the adjustable coupling 5 at the beginning, which drives the same-level drive mechanism 3 at the beginning to rotate at a set speed. Then, within each temperature group, adjacent same-level drive mechanisms 3 are connected by a constant speed coupling 4, ensuring that the speeds of adjacent same-level drive mechanisms 3 are equal within that temperature group, thereby driving each conveying roller 21 within that temperature group to rotate at the same speed. Between two adjacent temperature groups, the two same-level drive mechanisms 3 in the successive positions are connected by an adjustable coupling. The shaft 5 is connected, and the differential speed ratio of the same-level drive mechanism 3 between two adjacent same-temperature groups can be adjusted (adjustable to a differential speed ratio of 1:1) through the adjustable coupling 5. This makes the speed increase or decrease state of the conveyor roller shaft 21 in the later same-temperature group relative to the conveyor roller shaft 21 in the current same-temperature group the same as the speed increase or decrease state of the conveyor roller shaft 21 in the current same-temperature group relative to the conveyor roller shaft 21 in the previous same-temperature group along the production line conveying direction. This can effectively coordinate with the heat treatment process inside each same-temperature group, and can adjust the speed of the conveyor roller shaft 21 in each same-temperature group to convey the workpiece according to the required heat treatment temperature (in the usual heat treatment process such as annealing, tempering and heating, the required processing time gradually increases or decreases as the reaction progresses), so as to effectively coordinate with the heat treatment process of the workpiece.

[0043] Example 2:

[0044] Please see Figures 1-9 The difference from the above embodiment is that a lifting bracket 11 is provided at the bottom of the conveying chamber 1, an insulation shell 12 is provided outside the conveying chamber 1, an airflow circulation unit 13 is provided at the top of the insulation shell 12, and a heating unit is provided inside the insulation shell 12; the heating unit is used to provide the heat treatment temperature inside the conveying chamber 1, and the airflow circulation unit 13 is used to provide airflow circulation inside the conveying chamber 1 to maintain the temperature uniform inside the conveying chamber 1 while discharging the waste gas inside the conveying chamber 1.

[0045] The two adjacent conveying chambers 1 are interconnected. The two conveying chambers 1 at the beginning and end are provided with an isolation air curtain 14 on the side closest to the outside. The airflow temperature output by the isolation air curtain 14 is equal to the heat treatment temperature inside the corresponding conveying chamber 1. The heating unit includes several electric heating tubes. The airflow circulation unit 13 includes at least one intake fan 131 and one exhaust fan 132. Each exhaust fan 132 corresponding to each conveying chamber 1 is connected to the exhaust pipe 15.

[0046] In practical use, the isolation air curtains 14 located on the side of the two conveying chambers 1 at the beginning and end that are close to the outside have an air temperature equal to the heat treatment temperature provided by the heating unit (the heating unit is a common heating structure such as a heating tube in the prior art, or other heating structures can also be used) inside the corresponding conveying chamber 1. This can effectively prevent the temperature and gas inside the conveying chamber 1 from overflowing. Through the combined action of the air intake fan 131 and the exhaust fan 132 set in the airflow circulation unit 13, the airflow circulation inside the conveying chamber 1 is promoted to maintain the uniform temperature inside the conveying chamber 1, ensuring the heat stability of the workpiece during the conveying process inside the conveying chamber 1. At the same time, the exhaust gas inside the conveying chamber 1 is discharged, and the exhaust gas during the heat treatment process can be concentrated and discharged from the exhaust pipe 15 in a timely manner to ensure the effect of the workpiece heat treatment process.

[0047] Example 3:

[0048] Please see Figures 1-9 The difference from the above embodiment is that the rolling conveying mechanism 2 further includes a rolling synchronization unit 22 and a driven roller shaft 23. The rolling synchronization unit 22 includes at least one input shaft 221 and a synchronization shaft 222. Each input shaft 221 is meshed with the synchronization shaft 222 through a bevel gear set 223. The synchronization shaft 222 is meshed with each conveying roller shaft 21 through a synchronization gear set 224. A synchronization gear 211 is provided at the end of the conveying roller shaft 21 away from the synchronization gear set 224, and a driven gear 231 is provided at the end of the driven roller shaft 23 away from the synchronization gear set 224. The synchronization gear 211 and the driven gear 231 are connected and driven by a synchronous toothed belt. The gear specifications of the synchronization gear 211 and the driven gear 231 are the same.

[0049] Inside the same rolling conveyor mechanism 2, each driven roller shaft 23 rotates at the same speed as each conveying roller shaft 21; several support rollers 232 are fixedly arranged on the outside of the driven roller shaft 23, the outer diameter of the support rollers 232 is the same as the outer diameter of the conveying roller shaft 21, and there is a heat dissipation gap between adjacent support rollers 232.

[0050] In practical use, within the same rolling conveyor mechanism 2, the rotational speed input by the input shaft 221 can drive the synchronous shaft 222 to rotate through the gear transmission of the bevel gear set 223. Since the synchronous shaft 222 meshes with each conveyor roller shaft 21 via the synchronous gear set 224, the rotational speeds of each conveyor roller shaft 21 are equal. Furthermore, since the synchronous gear 211 and the driven gear 231 have the same gear specifications, and are connected by a synchronous toothed belt, the rotational speeds of each driven roller shaft 23 and each... The conveying rollers 21 rotate at the same speed, and the outer diameter of the support rollers 232 is the same as that of the conveying rollers 21. This allows the workpieces to be conveyed at a stable speed within the same rolling conveying mechanism 2. In actual use, the support rollers 232 provided on the outside of the driven roller 23 and the heat dissipation gaps between them, as well as the gap between the driven roller 23 and the adjacent conveying rollers 21, provide a larger contact area with the inside of the conveying chamber 1, thereby more effectively heat-treating the conveyed workpieces.

[0051] Example 4:

[0052] Please see Figures 1-9 The difference from the above embodiment is that the same-level drive mechanism 3 includes a mounting bracket 31, and a connecting roller shaft 32 is mounted on the top of the mounting bracket 31; within the same temperature group, two adjacent connecting roller shafts 32 are connected and fixed by a constant velocity coupling 4 fixed to the top of the mounting bracket 31; between two adjacent temperature groups, two connecting roller shafts 32 in the successive position are connected by an adjustable coupling 5; each input shaft 221 is provided with an input gear 225 at one end that extends out of the conveying chamber 1, and at least one connecting helical gear 321 is sleeved on the outside of the connecting roller shaft 32; on the outside of the same conveying chamber 1, each connecting helical gear 321 meshes with each input gear 225.

[0053] Inside the mounting bracket 31 and at the bottom of each input gear 225, there is a lubrication groove 33. The top of the lubrication groove 33 is rotatably mounted with a mounting cover 34. The lubrication groove 33 is filled with lubricant. The bottom of each input gear 225 passes through the mounting cover 34 and extends below the lubricant liquid surface inside the lubrication groove 33. The lubricant can lubricate the meshing part of the input gear 225 and the connecting helical gear 321 along with the input gear 225.

[0054] In practical use, within the same temperature group, two adjacent connecting roller shafts 32 are connected and fixed by a constant velocity coupling 4 fixed to the top of the mounting bracket 31. Each input shaft 221 has an input gear 225 at one end that extends out of the conveying chamber 1. At least one connecting helical gear 321 is sleeved on the outside of the connecting roller shaft 32. On the outside of the same conveying chamber 1, each connecting helical gear 321 meshes with each input gear 225, thereby making the rotational speed of each conveying roller shaft 21 and each driven roller shaft 23 within the same temperature group the same. During the transmission process, as each input gear 225 moves in and out of the lubrication groove 33, the lubricant can lubricate the meshing point of the input gear 225 and the connecting helical gear 321 along with the input gear 225, so as to reduce the contact wear of the gears and ensure the driving effect of each conveying roller shaft 21 and each driven roller shaft 23.

[0055] The adjustable coupling 5 includes a power input shaft 51 and a power output shaft 52, which are on the same axis. The power input shaft 51 and the power output shaft 52 are respectively connected to two drive mechanisms 3 of the same level on both sides. The adjustable coupling 5 also includes a drive gear set 53, a driven gear set 54, and a return gear 55. The drive gear set 53 is coaxially fixed with the power input shaft 51, and the return gear 55 is coaxially fixed with the power output shaft 52. The driven gear set 54 can move and maintains meshing with the drive gear set 53 during movement, and adjusts the differential ratio between the driven gear set 54 and the drive gear set 53 during movement. The driven gear set 54 maintains meshing with the return gear 55 during movement, and the differential ratio between the driven gear set 54 and the return gear 55 remains unchanged during movement.

[0056] In practical use, the driven gear set 54 can be moved by driving it. During the movement, the driven gear set 54 remains engaged with the driving gear set 53, and the differential speed ratio between the driven gear set 54 and the driving gear set 53 is adjusted. During the movement, the driven gear set 54 remains engaged with the reset gear 55, and the differential speed ratio between the driven gear set 54 and the reset gear 55 remains unchanged. This adjusts the ratio of the speed input from the power input shaft 51 to the speed output from the power output shaft 52, thereby coordinating with the heat treatment process within each temperature group and adjusting the speed at which the conveying roller shaft 21 in each temperature group conveys the workpiece.

[0057] Example 5:

[0058] A smart conveying method for glass heat treatment, using a conveying production line as described in any one of Examples 1-4 to convey glass during the heat treatment process, includes the following steps:

[0059] Preheat the interior of each conveying chamber 1. According to the progress of glass heat treatment, control the temperature of each conveying chamber 1 in each same temperature group to adjust to the required temperature, and control the temperature of each conveying chamber 1 in each same temperature group to be the same.

[0060] Along the glass conveying direction, the glass conveying speed of each conveying roller 21 in each temperature group is adjusted to the required speed by the differential speed ratio adjustment of each adjustable coupling 5.

[0061] The glass is conveyed sequentially in each conveying chamber 1 and undergoes heat treatment during its movement within each conveying chamber 1.

[0062] Example 6:

[0063] A glass annealing conveying process, using a conveying production line as described in any one of Examples 1-4 to convey glass for annealing in an annealing environment, includes the following steps:

[0064] Preheat the interior of each conveying chamber 1. According to the glass annealing process, control the temperature of each conveying chamber 1 in each isothermal group to adjust to the required temperature so that the temperature of each conveying chamber 1 in each isothermal group gradually decreases.

[0065] Along the glass conveying direction, the speed of each conveying roller 21 conveying glass is reduced sequentially within each temperature group by adjusting the differential ratio of each adjustable coupling 5.

[0066] During the glass transport process in each transport chamber 1, it is annealed in the annealing environment provided by each transport chamber 1.

[0067] 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 conveying production line, comprising a plurality of conveying chambers, each of the conveying chambers being provided with a rolling conveying mechanism inside, and each of the conveying chambers being provided with a drive mechanism of the same level outside, characterized in that: Each of the rolling conveying mechanisms includes a plurality of conveying rollers, and the same-level drive mechanism is capable of driving each of the conveying rollers located in the same conveying chamber to rotate at the same speed; Each of the several conveying chambers is set as a temperature group, and within each temperature group, each adjacent same-level drive mechanism is connected by a constant velocity coupling. Two adjacent temperature groups are connected by an adjustable coupling between two drive mechanisms of the same level that are in succession. A production line drive motor is also provided on one side of the conveying chamber at the first end. The production line drive motor is poweredly connected to the same-level drive mechanism at the first end through the adjustable coupling. The differential ratio of each of the adjustable couplings can be adjusted independently. Along the production line conveying direction, the speed increase or decrease of the conveying roller shaft in the next temperature group relative to the conveying roller shaft in the current temperature group is the same as the speed increase or decrease of the conveying roller shaft in the current temperature group relative to the conveying roller shaft in the previous temperature group. The rolling conveying mechanism further includes a rolling synchronization unit and a driven roller shaft. The rolling synchronization unit includes at least one input shaft and a synchronization shaft. Each input shaft meshes with the synchronization shaft through a bevel gear set, and each synchronization shaft meshes with each of the conveying roller shafts through a synchronization gear set. A synchronous gear is provided at the end of the conveying roller shaft away from the synchronous gear set, and a driven gear is provided at the end of the driven roller shaft away from the synchronous gear set. The synchronous gear and the driven gear are connected and driven by a synchronous toothed belt. The synchronous gear and the driven gear have the same gear specifications. Within the same rolling conveyor mechanism, the driven roller shafts and the conveying roller shafts rotate at the same speed; Several support rollers are fixedly arranged on the outside of the driven roller shaft. The outer diameter of the support rollers is the same as the outer diameter of the conveying roller shaft, and there is a heat dissipation gap between adjacent support rollers. The same-level drive mechanism includes a mounting bracket, and a connecting roller is mounted on the top of the mounting bracket; Within the same temperature group, two adjacent connecting rollers are connected and fixed by the constant velocity coupling fixed to the top of the mounting bracket; Two adjacent temperature groups are connected by an adjustable coupling between the two connecting rollers in the successive position. Each of the input shafts has an input gear at one end that extends out of the conveying chamber, and at least one connecting helical gear is sleeved on the outside of the connecting roller shaft. On the outside of the same conveying chamber, each of the connecting helical gears meshes with each of the input gears.

2. The conveyor production line according to claim 1, characterized in that: A lifting bracket is provided at the bottom of the conveying chamber, an insulation shell is provided outside the conveying chamber, an airflow circulation unit is provided at the top of the insulation shell, and a heating unit is provided inside the insulation shell, the heating unit including several electric heating tubes. The heating unit is used to provide the heat treatment temperature inside the conveying chamber, and the airflow circulation unit is used to provide airflow circulation inside the conveying chamber to maintain the uniform temperature inside the conveying chamber while discharging the waste gas inside the conveying chamber.

3. A conveyor production line according to claim 2, characterized in that: The two adjacent conveying chambers are interconnected. The two conveying chambers located at the beginning and end are provided with an isolation air curtain on the side closest to the outside. The airflow temperature output by the isolation air curtain is equal to the heat treatment temperature inside the corresponding conveying chamber. The airflow circulation unit includes at least one intake fan and one exhaust fan, and each exhaust fan corresponding to each of the delivery chambers is connected to an exhaust pipe.

4. A conveyor production line according to claim 1, characterized in that: The mounting bracket is provided with a lubrication groove inside and at the bottom of each input gear, and a mounting cover is rotatably provided at the top of the lubrication groove. The lubrication groove is filled with lubricant. The bottom end of each input gear passes through the mounting cover and extends below the lubricant liquid surface inside the lubrication groove. The lubricant can lubricate the meshing joint between the input gear and the connecting helical gear along with the input gear.

5. A conveyor production line according to claim 1, characterized in that: The adjustable coupling includes a power input shaft and a power output shaft, which are on the same axis. The power input shaft and the power output shaft are respectively connected to two drive mechanisms of the same level on both sides. The adjustable coupling further includes a drive gear set, a driven gear set, and a return gear. The drive gear set is coaxially fixed to the power input shaft, and the return gear is coaxially fixed to the power output shaft. The driven gear set is movable, and during the movement, the driven gear set remains engaged with the driving gear set, and the differential ratio between the driven gear set and the driving gear set is adjusted during the movement. The driven gear set remains engaged with the reset gear during movement, and the differential ratio between the driven gear set and the reset gear remains constant during movement.

6. A smart conveying method for glass heat treatment, characterized in that, The glass is conveyed during heat treatment using a conveying production line as described in any one of claims 1-5, comprising the following steps: Preheat the interior of each conveying chamber. According to the progress of glass heat treatment, control the temperature of each conveying chamber in each temperature group to the required temperature, and control the temperature of each conveying chamber in each temperature group to be the same. Along the glass conveying direction, the speed of each conveying roller within each temperature group conveying glass is adjusted to the required speed by adjusting the differential ratio of each adjustable coupling. The glass is conveyed sequentially in each conveying chamber and undergoes heat treatment during its movement within each conveying chamber.

7. A glass annealing conveying process, characterized in that, The glass is conveyed and annealed in an annealing environment using a conveying production line as described in any one of claims 1-5, comprising the following steps: Preheat the interior of each conveying chamber. According to the glass annealing process, control the temperature of each conveying chamber in each isothermal group to adjust to the required temperature so that the temperature of each conveying chamber in each isothermal group gradually decreases. Along the glass conveying direction, the differential speed ratio of each adjustable coupling is adjusted so that the speed of each conveying roller conveying glass in each temperature group decreases sequentially. During the glass transport process in each transport chamber, it is annealed in the annealing environment provided by each transport chamber.

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