A low-energy continuous glass tempering process

Abstract

This invention discloses a low-energy continuous glass tempering process, relating to the field of glass surface treatment technology. The low-energy continuous glass tempering process includes the following steps: Step 1, preheating the glass to a suitable temperature for ion exchange; Step 2, vertically feeding the preheated glass along a feed platform assembly and immersing it from bottom to top into a furnace containing molten salt, and then sequentially immersing subsequent preheated glass into the furnace via other feed platform assemblies in the same manner; Step 3, using the feed platform assembly to sequentially lift the glass out of the furnace. By setting up the feed platform assembly, the glass is immersed in molten salt on both sides for ion reaction, maintaining a uniform and synchronous ion exchange state on both sides of the glass surface. Furthermore, based on the time difference between the sequential immersions, a continuous immersion and removal tempering process can be formed, improving the continuity of the glass tempering process.

Description

Technical Field

[0001] This invention relates to the field of glass surface treatment technology, specifically a low-energy continuous glass tempering process. Background Technology

[0002] Curtain wall glass is the core material of building curtain walls. Its base is float glass sheets. Because float glass is brittle and easily breaks into sharp fragments, it needs to be tempered to increase its strength. Common tempering processes are divided into physical and chemical methods. The chemical process involves preheating the glass (between 300℃ and 370℃) and then immersing the preheated glass in a potassium nitrate solution (around 400℃). This process involves ion exchange (Na+). + Replace K + Compressive stress is formed on the surface, which in turn forms a reinforcing layer.

[0003] For example, Chinese patent CN111204983A discloses a tempered curtain wall glass surface treatment process. This process uses a lifting device to slowly lower the tempered glass into an acid immersion tank, so that the liquid in the acid immersion tank submerges the surface of the tempered glass. By combining the axial extension and reciprocating swing of the telescopic device with the reciprocating swing of the lifting device, the tempered glass surface is completely submerged in the solution in the acid immersion tank during the immersion process. As the tempered glass moves in the acid immersion tank, the solution in the acid immersion tank flows on the surface of the tempered glass, so that the surface of the tempered glass is completely submerged in the solution in the acid immersion tank.

[0004] However, in existing glass impregnation strengthening methods, the horizontal placement of the glass during the impregnation process and the slowness and instability of the process often cause the bottom surface of the glass to come into contact with the solution first. This results in a time difference between the impregnation of the upper and lower surfaces of the glass, leading to uneven ion exchange between the upper and lower surfaces and making it easy for the internal stress distribution to become uneven. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a low-energy continuous glass tempering process, solving the problems raised in the background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a low-energy continuous glass tempering process, comprising the following steps: Step 1, preheating the glass to a suitable temperature for ion exchange; Step 2, vertically feeding the preheated glass onto a feed platform assembly, using the glass's own weight to open the feed platform assembly, and immersing it from bottom to bottom into a furnace containing molten salt using a double-sided synchronous immersion method, and in the same manner, immersing subsequent preheated glass into the furnace sequentially through other feed platform assemblies; Step 3, after the sodium ions in the glass surface layer have fully exchanged with the potassium ions in the molten salt to form a strengthening layer, the feed platform assembly is used to lift the glass sequentially out of the furnace and immerse it again into new preheated glass, forming a continuous glass tempering process.

[0007] Furthermore, the furnace includes a tempering furnace, and an opening corresponding to the material platform assembly is provided separately above the tempering furnace; the material platform assembly includes a guide platform, located on at least one side above the opening of the tempering furnace, wherein: a guide groove is formed inside the guide platform to provide vertical glass guidance, a clearance groove is formed at the upper end of the guide groove to provide clearance movement of the guide platform during glass immersion, and a reset groove is formed at the lower end of the guide groove to provide self-reset of the guide platform after glass immersion, and to limit and support the glass above after complete immersion.

[0008] Furthermore, the material platform assembly also includes: a gear ring, disposed on the moving path of the guide platform and moving synchronously with the guide platform; an ascending rack, disposed on one side of the moving path of the gear ring; and a descending rack, disposed on the other side of the moving path of the gear ring. The bottom ends of the ascending rack and the descending rack form a bottom support structure that limits and supports the bottom of the immersed glass. When the glass is immersed, the gear ring responds to the yielding movement of the guide platform and engages with the descending rack, generating frictional resistance that acts on the glass during smooth immersion. After the glass is fully immersed, the gear ring responds to the resetting movement of the guide platform and engages with the ascending rack, generating a locking force that acts on the glass after it is fully immersed and a driving force for subsequent glass removal.

[0009] Furthermore, the gear ring is internally equipped with a ratchet and pawl structure to provide the frictional resistance required for smooth glass immersion, the pre-tightening force required after the glass is fully immersed, and the driving force required for subsequent material removal. The ratchet and pawl structure includes: a frustum located on the inner ring of the gear ring, with at least one set of pivot pins rotatably mounted along the circumference of the frustum; a swing pawl located in the middle of the pivot pins, with at least one set of compression springs along its swing path; a ratchet located on one side of the swing path of the swing pawl, generating relative frictional sliding or contact with the swing pawl; a friction disc located on at least one side of the ratchet; and a swing arm located at at least one end of the pivot pin, with a friction contact at the other end of the swing arm, so that when the swing pawl swings, it drives the friction contact to make point-to-point friction with the friction disc.

[0010] Furthermore, the bottom support structure includes: a bottom support plate, fixedly connected to the bottom end of the rising rack; and a telescopic guide plate, fixedly connected to the bottom end of the descending rack; wherein the telescopic guide plate is slidably installed inside the bottom support plate, and a corner sleeve is provided at the other end of the telescopic guide plate to provide limiting support below when the glass is immersed.

[0011] Furthermore, the material platform assembly also includes: a fixed platform, located on one side of the gear ring; an adjusting slide, located on one side of the guide platform, wherein an adjusting screw is provided through the interior of the adjusting slide and is connected to the fixed platform, so that the guide platform moves to make way in response to the glass impregnation, thereby driving the gear ring to move synchronously and engage with the descending rack; and a spring seat, offset from the gear ring and located on the moving path of the guide platform, and at least one set is provided, so that the guide platform moves to reset after the glass is fully impregnated, thereby driving the gear ring to move synchronously and engage with the ascending rack.

[0012] Furthermore, the material platform assembly also includes a drive structure for actively picking up the glass after impregnation, wherein the drive structure includes: a first drive shaft, located on one axial side of the adjusting screw, and a first spline shaft at one end of the first drive shaft; a first spline bushing, located at one end of the adjusting screw and slidably mounted on the first spline shaft, so that the rotational force of the first drive shaft is converted into a linear thrust, generating a driving force to push the guide platform to actively move.

[0013] Furthermore, the drive structure also includes: a fourth drive shaft, rotatably mounted on a fixed platform, and fixedly connected to a ratchet; a third drive shaft, rotatably mounted on one side of the fourth drive shaft, and connected to the fourth drive shaft via a bevel gear pair; a second drive shaft, located on one axial side of the third drive shaft, and having a second spline shaft at one end; and a second spline bushing, located at one end of the third drive shaft and slidably mounted on the second spline shaft, so that the rotational force of the second drive shaft is converted into a linear thrust that drives the rising rack to move, thereby generating a driving force to lift and pick up the glass.

[0014] Furthermore, the material platform assembly also includes: a fixed guide platform, arranged on the moving path of the rising rack, which acts as a guide for the movement of the rising rack; a sliding guide platform, arranged on the moving path of the descending rack, which acts as a guide for the movement of the descending rack; and a positioning screw, located on one side of the sliding guide platform, used to drive the descending rack to move laterally and provide the space required for the movement of the gear ring.

[0015] Furthermore, the material platform assembly also includes: a blowing pipeline located on the tempering furnace, with solenoid valves separately arranged along its pipeline direction; a first blowing head disposed on a fixed guide platform, wherein the nozzle of the first blowing head faces the upward rack, and the air inlet of the first blowing head is connected to the solenoid valve through a first flexible hose; and a second blowing head disposed on a sliding guide platform, wherein the nozzle of the second blowing head faces the downward rack, and the air inlet of the second blowing head is connected to the solenoid valve through a second flexible hose.

[0016] The present invention has the following beneficial effects:

[0017] (1) The low-energy continuous glass tempering process provides a platform for vertical glass feeding into the furnace through the setting of the material platform assembly, so that the glass is immersed in molten salt in a double-sided immersion method to carry out ion reaction, so that the two sides of the glass maintain a uniform and synchronous ion exchange state, ensuring the uniformity of internal and external stress formation, and can form a continuous immersion and unloading tempering process according to the time difference of the glass immersion, thereby improving the continuity of the glass tempering process.

[0018] (2) The low-energy continuous glass tempering process, through the setting of the material platform component, can provide a platform for glass to be impregnated without the aid of external force. When the glass is impregnated under its own weight, it provides resistance when the glass falls due to gravity, so that the glass maintains a uniform and stable impregnation state. After the glass is fully impregnated, it provides a pre-tightening force after the glass is impregnated, so that the glass maintains a stable ion exchange state after being impregnated to molten salt. It has stable self-feeding adaptation characteristics, which reduces the difficulty of operation and ensures the uniform and stable speed of glass feeding.

[0019] (3) The low-energy continuous glass tempering process, through the setting of the material platform assembly, can provide active lifting and material removal after glass immersion, so that after the glass forms a tempered layer after ion exchange, the glass can be lifted and removed, and new preheated glass can be immersed simultaneously, forming a continuous working state of glass tempering.

[0020] (4) This low-energy continuous glass tempering process uses the material platform assembly to guide the glass vertically. Only a channel for glass immersion and unloading needs to be reserved on the tempering furnace. There is no need to keep the tempering furnace in an flared state. This reduces heat loss and greatly improves operational safety.

[0021] (5) This low-energy continuous glass tempering process can be adapted to the tempering of glass of different sizes, improving flexibility and adaptability and enhancing actual production capacity.

[0022] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the process flow of the present invention;

[0024] Figure 2 This is a schematic diagram of the assembly of the material platform component and the tempering furnace in this invention;

[0025] Figure 3 This is a first structural schematic diagram of the material platform assembly in this invention;

[0026] Figure 4 This is a schematic diagram of the second structure of the material platform assembly in this invention;

[0027] Figure 5 This is a schematic diagram of the first assembly of the guide platform and the gear ring in this invention;

[0028] Figure 6 This is a second assembly diagram of the guide platform and the gear ring in this invention;

[0029] Figure 7 This is a first unfolded schematic diagram of the driving structure in this invention;

[0030] Figure 8 This is a second schematic diagram of the driving structure in this invention;

[0031] Figure 9 This is a schematic diagram of the first structure of the guide platform in this invention;

[0032] Figure 10 This is a schematic diagram of the second structure of the guide platform in this invention;

[0033] Figure 11 This is a schematic diagram of the assembly of the ascending rack and the descending rack in this invention;

[0034] Figure 12 This is an exploded view of the bottom support structure in this invention;

[0035] Figure 13 This is a schematic diagram of the drive mechanism of the one-way gear component in this invention;

[0036] Figure 14 This is an assembly diagram of the ratchet and pawl structure in this invention;

[0037] Figure 15 This is a schematic diagram of the first force-driven action of the ratchet and pawl structure in this invention;

[0038] Figure 16 This is a schematic diagram of the second force driving mechanism of the ratchet and pawl structure in this invention;

[0039] Figure 17 a, b, c, and d in the figure are, in order, the force state changes of the descending rack acting on the ratchet and pawl structure in this invention;

[0040] Figure 18This is a schematic diagram illustrating the cleaning of the two sets of racks in this invention.

[0041] In the diagram, 1. Tempering furnace; 2. Injection pipeline; 3. Support platform; 4. Guide platform; 400. Clearance chute; 410. Guide groove; 420. Reset groove; 5. Rising rack; 6. Lowering rack; 7. Spring seat; 8. Support guide rod; 9. One-way gear assembly; 91. Frustum; 92. Gear ring; 93. Turning pin; 94. Oscillating pawl; 95. Compression spring; 96. Oscillating arm; 97. Friction contact; 98. Ratchet; 99. Friction disc; 10. Support shell; 11. Fixed guide platform; 12. Sliding guide platform; 13. Alignment screw; 14. Telescopic guide. 15. Base plate; 16. Corner sleeve; 17. First motor; 18. First drive shaft; 19. Adjusting screw; 20. Second motor; 21. Second drive shaft; 22. Third drive shaft; 23. First bevel gear; 24. Second bevel gear; 25. First spline shaft; 26. First spline bushing; 27. Adjusting slide; 28. Fixed platform; 29. ​​Second spline shaft; 30. Second spline bushing; 31. Fourth drive shaft; 32. Solenoid valve; 33. First hose; 34. First nozzle; 35. Second hose; 36. Second nozzle. Detailed Implementation

[0042] 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.

[0043] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0044] The following is based on Figures 1-18 This invention describes a low-energy continuous glass tempering process provided by an embodiment of the present invention.

[0045] like Figure 1 As shown, a low-energy continuous glass tempering process includes the following steps:

[0046] Step 1: Preheat the glass to a temperature suitable for ion exchange, while simultaneously heating and melting potassium nitrate in the furnace to a molten salt state and maintaining the temperature.

[0047] Step 2: The preheated glass is vertically fed onto the feed platform assembly. The glass's own weight is used to open the feed platform assembly. The glass is immersed into the furnace containing molten salt from bottom to bottom in a double-sided synchronous immersion method. At the same time as the glass is fully immersed, the glass is pre-tightened and limited to maintain a stable immersion state for ion exchange. In this way, subsequent preheated glass is sequentially immersed into the furnace through other feed platform assemblies.

[0048] Step 3: After the sodium ions in the glass surface have fully exchanged with the potassium ions in the molten salt to form a strengthening layer, the glass is lifted out of the furnace in sequence according to the time difference of the sequential feeding of the glass, and then immersed in new preheated glass again, forming a continuous tempering process for the glass.

[0049] like Figures 2-4 As shown, to achieve continuous glass impregnation, the furnace includes a tempering furnace 1, and openings corresponding to the material platform assembly are arranged separately above the tempering furnace 1. The material platform assembly includes two sets of guide platforms 4, which are arranged in opposite directions above the opening of the tempering furnace 1. The two sets of guide platforms 4 serve as the feeding channels for glass impregnation. The glass is vertically impregnated into the tempering furnace 1 along the feeding channels, so that the two surfaces of the glass maintain a uniform and synchronous ion exchange state. Then, in this manner, the glass is sequentially impregnated into the tempering furnace 1 for ion exchange. According to the time difference of sequential glass feeding, after the glass impregnation time is sufficient, the glass can be sequentially unloaded and new preheated glass can be put in simultaneously, forming a continuous glass tempering process.

[0050] It should be noted that since the tempering furnace 1 only has an opening channel at its top for feeding and unloading glass, and it has only a small opening, on the one hand, it can reduce the loss of heat from the molten salt inside the tempering furnace 1 and save energy, and on the other hand, it can provide a safer feeding channel. In addition, the vertical immersion of glass results in a smaller contact area between the glass and the molten salt, which can prevent the molten salt from splashing and oscillating during immersion.

[0051] like Figures 5-17 As shown, to achieve stable self-impregnation of the glass, support platforms 3 are provided on both sides of the guide platform 4 to limit and guide its movement. Support shells 10 are provided on both sides of the support platforms 3. A spring seat 7 is provided on one side of the support shell 10 to provide elastic support for the guide platform 4. A support guide rod 8 is sleeved inside the spring seat 7 to provide lateral clearance movement for the guide platform 4. The combination of the spring seat 7 and the support guide rod 8 ensures that the guide platform 4 maintains elastic lateral movement when pushed by the gravity of the glass, providing clearance movement during glass immersion and reset movement after immersion. Specifically:

[0052] like Figures 9-10As shown, the guide platform 4 has a guide groove 410 inside for vertically guiding the glass. A clearance groove 400 is formed at the upper end of the guide groove 410 to allow the guide platform 4 to move during glass impregnation. A reset groove 420 is formed at the lower end of the guide groove 410 to allow the guide platform 4 to reset itself after glass impregnation, and to provide limiting support above the fully impregnated glass. During vertical glass impregnation, when the glass slides along the clearance groove 400, it generates an action on the guide platform 4. The pushing force of the displacement causes the glass to open the guide platform 4 and transition into the guide groove 410. The glass completes the immersion process by falling into the guide groove 410. When the glass is completely immersed in the guide groove 410 and transitions to the reset groove 420 (the liquid height of the molten salt inside the tempering furnace 1 is higher than that of the reset groove 420 so that the glass is completely immersed in the molten salt), the guide platform 4 quickly resets under the action of elasticity. At this time, the reset groove 420 slides above the glass to limit and support the upper frame of the glass.

[0053] As a further solution to this embodiment, such as Figures 5-11 As shown, the material platform assembly also includes a gear ring 92 disposed on the moving path of the guide platform 4, and moves synchronously with the guide platform 4. A rising rack 5 is disposed on one side of the moving path of the gear ring 92, and a descending rack 6 is disposed on the other side of the moving path of the gear ring 92. The bottom ends of the rising rack 5 and the descending rack 6 form a bottom support structure that limits and supports the bottom of the immersed glass. During the process of the glass being immersed into the tempering furnace 1 by its own weight pushing open the guide platform 4, its bottom edge sinks onto the bottom support structure. The gravity acting on the bottom support structure generates a driving force that drives the rising rack 5 and the descending rack 6 to descend synchronously. Specifically:

[0054] like Figures 11-12 As shown, the bottom support structure includes a bottom support plate 15 fixed to the bottom end of the rising rack 5 and a telescopic guide plate 14 fixed to the bottom end of the descending rack 6. The telescopic guide plate 14 is slidably installed within the bottom support plate 15, and a corner sleeve 16 is provided at the other end of the telescopic guide plate 14 to provide limiting support below when the glass is immersed. Through the integrated installation of the telescopic guide plate 14 and the bottom support plate 15, the rising rack 5 and the descending rack 6 are moved under integrated force. The corner sleeve 16 allows the glass to sink into the corner sleeve 16 during vertical immersion, providing limiting support for its bottom edge. The gravity of the glass is transferred to the rising rack 5 and the falling rack 6 (by sliding the telescopic guide plate 14 and the bottom support plate 15, the falling rack 6 can move laterally relative to the rising rack 5, and the movement of the falling rack 6 can drive the corner sleeve 16 to move synchronously, so that the two sets of corner sleeves 16 maintain a suitable distance to adapt to the limiting support work of the bottom corner of glass of different sizes. Since the reset groove 420 on the guide table 4 is a through structure, it can slide arbitrarily along the upper edge of the glass, so it can adapt to the limiting work of the upper edge of glass of different sizes without adjustment).

[0055] Furthermore, such as Figures 5-6 As shown, a fixed platform 28 is provided on one side of the gear ring 92, and an adjusting slide 27 is provided on one side of the guide platform 4. An adjusting screw 19 is internally connected to the adjusting slide 27 and the fixed platform 28, creating a state where the guide platform 4 drives the gear ring 92 to move synchronously (and during subsequent glass removal, the guide platform 4, driven by the adjusting screw 19, can move with the gear ring 92 as a fixed point to provide the necessary channel for glass removal). During the glass immersion process, when the guide platform 4 is pushed to move, the gear ring 92 responds to the movement of the guide platform 4 and engages with the descending rack 6, generating frictional resistance for smooth glass immersion. After the glass is fully immersed, the gear ring 92 responds to the reset movement of the guide platform 4 and engages with the rising rack 5, generating locking force after complete immersion and driving force for subsequent glass removal, achieving smooth descent during glass immersion and self-locking limit after immersion. Specifically:

[0056] like Figures 13-17 As shown, the gear ring 92 has a ratchet and pawl structure inside, and the combination of the gear ring 92 and the ratchet and pawl structure constitutes a one-way gear component 9 (the one-way gear component 9 is slidably mounted on the support shell 10 via the fixed platform 28, providing the track carrier required for the movement of the one-way gear component 9). The one-way gear component 9 provides the frictional resistance required for smooth glass immersion, the pre-tightening force required after the glass is fully immersed, and the driving force required for subsequent material removal. During glass immersion, the guide platform 4 pushes the gear ring 92 to mesh with the descending rack 6, and when the glass moves the descending rack 6 downwards, it drives the gear ring 92 to rotate. At this time, by utilizing the frictional resistance of the ratchet and pawl structure acting on the gear ring 92, the rotational speed of the gear ring 92 is reduced (e.g., ...). Figure 16 As shown), this ensures that the glass immersion remains stable, providing a stall protection function. After the glass is fully immersed, the guide platform 4, under the elastic force of the spring seat 7, drives the gear ring 92 to reset and engage with the rising rack 5. At this time, the preload force applied to the gear ring 92 by the ratchet and pawl structure stops the gear ring 92 from rotating, forming a locking engagement with the rising rack 5 (as shown). Figure 15 As shown, the glass is fully immersed in the material and then lowered to limit its movement, thus achieving stable immersion before loading and limiting support after loading.

[0057] The ratchet and pawl structure includes a frustum 91 located on the inner ring of the gear ring 92, and at least one set of pivot pins 93 rotatably mounted around the frustum 91. A swing pawl 94 is located in the middle of the pivot pins 93, and at least one set of compression springs 95 are located along its swing path. A ratchet 98 is also located on one side of the swing path of the swing pawl 94, allowing relative frictional sliding or contact between the ratchet 98 and the swing pawl 94. A fourth drive shaft 31 is rotatably mounted on the fixed platform 28, so that the ratchet 98 is fixedly connected to the fourth drive shaft 31. The frustum 91 is rotatably mounted on the fourth drive shaft 31. When the descending rack 6 moves downward, causing the gear ring 92 to rotate passively, the gear ring 92 drives the frustum 91 to rotate, causing the swing pawl 94 to actively swing along the ratchet 98. The swinging action of the swing pawl 94 acts on the compression of the compression springs 95 (e.g., Figure 17 As shown in the state diagram of a, b, c, and d, during the active swaying process of the swaying pawl 94 along the ratchet 98, its swaying action gradually overcomes the elastic pressure of the compression spring 95 until the swaying is maximized and transitions to the next set of gears on the ratchet 98, forming a new swaying action. In the process of overcoming the elastic pressure of the compression spring 95, it is subjected to elastic resistance (acting on the rotation of the gear ring 92), generating swaying resistance, providing resistance to the downward movement of the glass due to gravity, so that when the glass is impregnated by its own weight, it tends to a uniform and stable state.

[0058] Furthermore, the ratchet and pawl structure also includes a friction disc 99 located on at least one side of the ratchet 98, a sway arm 96 located at at least one end of the pivot pin 93, and a friction contact 97 located at the other end of the sway arm 96. When the sway pawl 94 sways, it causes the friction contact 97 to make point contact friction with the friction disc 99. During the sway rotation of the sway pawl 94 driven by the gear ring 92, the sway arm 96 is synchronously rotated through the pivot pin 93 (e.g., ...). Figure 17 As shown in the state diagrams of a, b, c, and d, when the yaw pawl 94 yaws to its maximum along the ratchet 98, the friction contact 97 on the yaw arm 96 comes into contact with the friction disk 99, forming frictional resistance (which generates resistance acting on the rotation of the gear ring 92). This causes the friction contact 97 on the yaw arm 96 to come into contact with the friction disk 99, generating frictional resistance and forming secondary frictional resistance acting on the rotation of the gear ring 92. Furthermore, when the rotational speed of the gear ring 92 tends to accelerate and stall due to the excessive weight of the glass, the contact frequency between the friction contact 97 and the friction disk 99 increases, changing from point friction to linear friction, providing continuous frictional resistance so that the glass's self-weight impregnation state tends to be uniform and stable.

[0059] It should be noted that when the gear ring 92 resets and engages with the rising rack 5, the gravity of the glass acts on the rising rack 5. At this time, the direction of gravity on the gear ring 92 changes, causing the direction of force on the eccentric pawl 94 to change, forming an abutment lock state with the ratchet 98, stopping the glass from sinking and achieving self-limiting support after glass impregnation. Furthermore, the rotation drive on the fourth drive shaft 31 acting on the ratchet 98 can be used to drive the gear ring 92 to rotate, generating a pushing force acting on the rising rack 5 to lift and pick up the ion-exchanged glass.

[0060] like Figures 3-4 , Figures 7-8 As shown, to achieve the lifting and unloading of glass after ion exchange, the material platform assembly also includes a drive structure for actively unloading the impregnated glass. The drive structure includes a first drive shaft 18 located on one axial side of the adjusting screw 19, with a first spline shaft 25 at one end of the first drive shaft 18. Simultaneously, a first spline bushing 26 is located at one end of the adjusting screw 19, and the first spline bushing 26 is slidably mounted on the first spline shaft 25. This sliding transmission combination of the first spline bushing 26 and the first spline shaft 25 ensures that when the guide platform 4 moves the gear ring 92, the first drive shaft 18 and the adjusting screw 19 remain in an integrated transmission state. After the glass ion exchange is completed, a first motor 17 located in the middle of the first drive shaft 18 serves as the drive source, generating the driving force to drive the first drive shaft 18, and utilizing the first spline shaft 25... The sliding transmission between the 5th and the first splined bushing 26 drives the adjusting screw 19 to rotate. During the rotation of the adjusting screw 19, the rotational force is converted into a linear thrust, which drives the adjusting slide 27 to move and pushes the guide table 4 to actively move to form the channel required for glass lifting and material picking. (When the adjusting screw 19 drives the guide table 4 to actively move to make way, a pulling force is formed between the guide table 4 and the gear ring 92. At this time, the gear ring 92 is limited on the support shell 10 by the fixed table 28. It will not move under the action of the pulling force. Therefore, the guide table 4 can move to make way relative to the gear ring 92 to provide the channel required for glass picking. In addition, the pulling force between the guide table 4 and the gear ring 92 can make the meshing state of the gear ring 92 and the rising rack 5 more stable, providing a stable guarantee for the subsequent rotation of the gear ring 92 to act on the rising rack 5 to move upward.)

[0061] As a further embodiment, the drive structure also includes a third drive shaft 22 rotatably mounted on one side of the fourth drive shaft 31, and the third drive shaft 22 is rotatably mounted on the fixed platform 28. The third drive shaft 22 and the fourth drive shaft 31 are connected by a bevel gear pair composed of a first bevel gear 23 and a second bevel gear 24. Meanwhile, a second drive shaft 21 is provided on one axial side of the third drive shaft 22, and a second spline shaft 29 is provided at one end of the second drive shaft 21. Furthermore, a second spline bushing 30 is provided at one end of the third drive shaft 22, and the second spline bushing 30 is slidably mounted on the second spline shaft 29. Utilizing the sliding transmission combination of the second spline bushing 30 and the second spline shaft 29, the guide table 4, while driving the gear ring 92 to move, still... It can maintain the integrated transmission state of the second drive shaft 21 and the third drive shaft 22. After the guide table 4 actively moves to give way, the second motor 20 located in the middle of the second drive shaft 21 is used as the drive source to generate a driving force acting on the second drive shaft 21. The sliding transmission between the second spline shaft 29 and the second spline bushing 30 drives the third drive shaft 22 to rotate. During the rotation of the third drive shaft 22, the driving force is transmitted to the fourth drive shaft 31 through the bevel gear pair composed of the first bevel gear 23 and the second bevel gear 24. This causes the fourth drive shaft 31 to drive the ratchet 98 to rotate. The locking state formed between the ratchet 98 and the eccentric pawl 94 drives the gear ring 92 to rotate, generating a pushing force acting on the rising rack 5 to lift and remove the ion-exchanged glass.

[0062] like Figures 3-4 , Figures 11-12 As shown, to adapt to the impregnation of glass of different sizes, the material platform assembly also includes a fixed guide 11 arranged on the moving path of the rising rack 5, which acts as a guide for the movement of the rising rack 5 and fixes the fixed guide 11 to the support shell 10; and a sliding guide 12 arranged on the moving path of the descending rack 6, which acts as a guide for the movement of the descending rack 6 and slides on the support shell 10. A positioning screw 13 is provided on one side of the sliding guide 12 to drive the descending rack 6 to move laterally. When glass of different sizes spreads the guide platform 4 to move laterally to make room, the amount of movement of the gear ring 92 changes. Therefore, by using the positioning screw 13 to drive the sliding guide 12 to move laterally in advance, the descending rack 6 can be pushed to move laterally, providing space for the movement of the gear ring 92. This allows the guide platform 4 to move synchronously with the gear ring 92 and always engage with the adjusted descending rack 6, adapting to the loading and unloading of glass of different sizes.

[0063] It should be noted that, Figures 11-12As shown, while adjusting the movement of the descending rack 6, the telescopic guide plate 14 moves synchronously relative to the bottom support plate 15, and the position of the corner sleeve 16 is pre-adjusted synchronously, so that the two sets of corner sleeves 16 maintain a suitable distance to adapt to the limiting support work of the bottom corners of glass of different sizes.

[0064] like Figure 2 , Figure 18 As shown, to ensure cleanliness during the movement of the rising rack 5 and the descending rack 6, a blowing pipeline 2 is installed on the tempering furnace 1, and solenoid valves 32 are separately installed along the pipeline direction. A first blowing head 34 with its nozzle facing the rising rack 5 is installed on the fixed guide platform 11, and the first blowing head 34 is connected to the solenoid valve 32 via a first flexible hose 33. A second blowing head 36 with its nozzle facing the descending rack 6 is installed on the sliding guide platform 12, and the second blowing head 36 is connected to the solenoid valve 32 via a second flexible hose 35. Because... Since molten salt is a low-viscosity fluid, it is inevitable that molten salt will adhere to it when the two sets of racks move upward. At this time, by connecting the air pump equipment to the blowing pipeline 2 and controlling the opening and closing of the solenoid valve 32, high-pressure gas can be delivered to the first blowing head 34 and the second blowing head 36 through the two sets of hoses respectively. When the rising rack 5 and the falling rack 6 move out of the molten salt, the molten salt adhering to the rising rack 5 and the falling rack 6 is blown clean, so that the molten salt falls back into the tempering furnace 1, avoiding the molten salt adhering to and cooling on the two sets of racks.

[0065] 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.

[0066] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A low energy continuous glass toughening process, characterized in that, It comprises the following steps: Step one, preheat the glass to a temperature state suitable for ion exchange; Step two, vertically feed the preheated glass along the material table assembly, use the weight of the glass to prop open the material table assembly, and immerse it into the furnace containing molten salt from below in a double-sided synchronous feeding mode, and in this way, immerse the subsequent preheated glass into the furnace through other material table assemblies; Step three, after the sodium ions in the surface layer of the glass are fully ion exchanged with the potassium ions in the molten salt to form a strengthened layer, use the material table assembly to lift the glass out of the furnace one by one, and immerse it again into new preheated glass to form a continuous glass tempering process; The furnace comprises a tempering furnace (1), and an opening corresponding to the material table assembly is arranged above the tempering furnace (1) in a split type; The material table assembly comprises: A guide material table (4) is arranged on at least one side above the opening of the tempering furnace (1), wherein a guide groove (410) for vertically guiding the glass is formed in the guide material table (4), the upper end of the guide groove (410) is formed with a displacement inclined groove (400) for providing displacement movement of the guide material table (4) when the glass is immersed, and the lower end of the guide groove (410) is formed with a reset groove (420) for providing self-resetting of the guide material table (4) after the glass is immersed, and the reset groove (420) limits and supports the glass above after complete immersion; The material table assembly further comprises: A gear ring (92) is arranged on the moving path of the guide material table (4) and moves synchronously with the guide material table (4); An upward rack (5) is arranged on one side of the moving path of the gear ring (92); A downward rack (6) is arranged on the other side of the moving path of the gear ring (92); The bottom ends of the upward rack (5) and the downward rack (6) form a bottom support structure for limiting and supporting the glass below during immersion, wherein when the glass is immersed, the gear ring (92) engages with the downward rack (6) in response to the displacement movement of the guide material table (4), generating frictional resistance acting on the glass during stable immersion, and when the glass is completely immersed, the gear ring (92) engages with the upward rack (5) in response to the reset movement of the guide material table (4), generating locking force acting on the completely immersed glass and driving force for subsequent glass taking; The gear ring (92) is internally provided with a ratchet and pawl structure, wherein The ratchet and pawl structure comprises: A circular table (91) is arranged in the inner ring of the gear ring (92), and at least one set of rotating pins (93) is installed along the circumferential direction of the circular table (91); A deflection pawl (94) is arranged in the middle of the rotating pin (93), and at least one set of compression springs (95) is arranged on the deflection path of the deflection pawl (94); A ratchet wheel (98) is arranged on one side of the deflection path of the deflection pawl (94), and generates relative friction sliding or abutting with the deflection pawl (94); A friction disc (99) is arranged on at least one side of the ratchet wheel (98); A deflection arm (96) is arranged on at least one end of the rotating pin (93), and a friction contact (97) is arranged on the other end of the deflection arm (96), so that when the deflection pawl (94) moves, the friction contact (97) is brought into point contact with the friction disc (99).

2. A low energy continuous glass toughening process according to claim 1, characterised in that, The bottom support structure comprises: A bottom support plate (15) is fixed to the bottom end of the upward rack (5). Telescopic guide plate (14) is fixed to the bottom end of the descending rack (6); Wherein, the telescopic guide plate (14) is slidingly installed in the bottom support plate (15), and a corner sleeve (16) is arranged at the other end of the telescopic guide plate (14) to provide limiting support below when the glass is immersed.

3. A low energy continuous glass toughening process according to claim 2, characterised in that, The material table assembly further comprises: Fixed table (28) is arranged on one side of the gear ring (92); Adjusting sliding table (27) is arranged on one side of the material guide table (4), wherein the adjusting sliding table (27) is provided with an adjusting screw (19) penetrating through the inside, and the adjusting screw (19) is connected with the fixed table (28), so that the material guide table (4) moves in response to the immersion of the glass to drive the gear ring (92) to move synchronously and engage with the descending rack (6); Spring seat (7) is staggered with the gear ring (92) and arranged on the moving path of the material guide table (4), and at least one set is arranged, so that the material guide table (4) moves in response to the complete immersion of the glass to drive the gear ring (92) to move synchronously and engage with the ascending rack (5).

4. A low energy continuous glass toughening process according to claim 3, characterised in that, The material table assembly further comprises a driving structure for actively taking the glass after immersion, wherein: The driving structure comprises: First drive shaft (18) is arranged on one side of the adjusting screw (19) in the axial direction, and first spline shaft (25) is arranged at one end of the first drive shaft (18); First spline shaft sleeve (26) is arranged at one end of the adjusting screw (19) and slidingly installed on the first spline shaft (25), so that the rotating force of the first drive shaft (18) is converted into linear thrust to generate driving force to push the material guide table (4) to actively move.

5. A low energy continuous glass toughening process according to claim 4, characterised in that, The driving structure further comprises: Fourth drive shaft (31) is rotatably installed on the fixed table (28), and the fourth drive shaft (31) is fixedly connected with the ratchet wheel (98); Third drive shaft (22) is rotatably installed on one side of the fourth drive shaft (31), and the third drive shaft (22) and the fourth drive shaft (31) are connected through the bevel gear pair transmission; Second drive shaft (21) is arranged on one side of the third drive shaft (22) in the axial direction, and second spline shaft (29) is arranged at one end of the second drive shaft (21); Second spline shaft sleeve (30) is arranged at one end of the third drive shaft (22) and slidingly installed on the second spline shaft (29), so that the rotating force of the second drive shaft (21) is converted into linear thrust to drive the gear ring (92) to move the ascending rack (5), and driving force is generated to push the glass to lift and take the material.

6. A low energy continuous glass toughening process according to claim 3, characterised in that, The material table assembly further comprises: Fixed guide table (11) is arranged on the moving path of the ascending rack (5) and acts on the moving guide of the ascending rack (5); Sliding guide table (12) is arranged on the moving path of the descending rack (6) and acts on the moving guide of the descending rack (6); Positioning screw (13) is arranged on one side of the sliding guide table (12) to drive the descending rack (6) to move transversely and provide space required for the movement of the gear ring (92).

7. A low energy continuous glass toughening process according to claim 6, characterised in that, The material table assembly further comprises: The spray pipeline (2) is located on the toughening furnace (1), and the electromagnetic valve (32) is arranged in a split type along the pipeline direction of the toughening furnace (1). The first blowing head (34) is arranged on the fixed guide table (11), wherein the nozzle of the first blowing head (34) is opposite to the ascending rack (5), and the air inlet of the first blowing head (34) is connected to the electromagnetic valve (32) through the first hose (33); The second blowing head (36) is arranged on the sliding guide table (12), wherein the nozzle of the second blowing head (36) is opposite to the descending rack (6), and the air inlet of the second blowing head (36) is connected to the electromagnetic valve (32) through the second hose (35).

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