Continuous stepping glass body strengthening processing technology and equipment
By setting up upper and lower heating parts and worm gear and worm transmission in the glass reinforcement equipment, combined with ceramic thermal conduction plates and cooling air ducts, the problems of glass heating unevenness and energy consumption stability are solved, and efficient and uniform glass reinforcement effect is achieved.
Patent Information
- Application Number
- CN202510701045.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-28
- Publication Date
- 2025-07-18
AI Technical Summary
The existing glass reinforcement equipment has problems with heat inhomogeneity during heating, especially glass with a thickness of more than 5mm, which leads to uneven crystallization, poor residual stress and optical uniformity, and is difficult to balance the contradiction between energy consumption and process stability.
The continuous stepping glass body reinforcement processing equipment is adopted. By setting up two sets of heating parts in the heating box and the constant temperature box, combined with the worm gear and worm transmission and an adjustable top cover design, the glass is heated evenly on the upper and lower sides, and the heat transfer efficiency is improved by using ceramic heat conducting plates and heat conducting pipes, and precise temperature control is carried out in combination with the cooling air duct.
The uniform heating and precise temperature control of the glass are achieved, the mechanical strength and optical uniformity of the glass are improved, and the energy consumption and process stability problems are reduced.
Smart Images
Figure CN120328844A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of glass processing, and in particular to a continuous step glass body strengthening processing technology and equipment. Background Art
[0002] In current glass strengthening treatment technologies, heat treatment is a key link to improve the mechanical strength, thermal stability and chemical durability of glass. Especially for phase-separable and crystallizable glasses (such as glass ceramics and high-aluminum silicate glasses), their properties highly depend on precise heat uniformity.
[0003] However, the existing technologies have the following limitations: 1. Insufficient processing uniformity Traditional equipment mostly uses unilateral (upper surface) radiation processing, which will cause a temperature gradient in the thickness direction of the glass. Experiments show that when the thickness exceeds 5 mm, single-sided processing will cause the temperature difference on the lower surface to reach more than 50 °C, leading to problems such as uneven crystallization and residual stress, affecting the impact resistance and optical uniformity of the final product.
[0004] 2. Contradiction between energy consumption and process stability To compensate for the heat loss on the lower surface, some processes need to extend the constant temperature time or increase the upper surface temperature, which not only increases energy consumption but also may cause excessive softening of the glass surface, leading to roll mark defects or deformation. Summary of the Invention
[0005] To solve the above problems, the present application provides a continuous step glass body strengthening processing technology and equipment.
[0006] The present application provides a continuous step glass body strengthening processing equipment, adopting the following technical solutions: A continuous step glass body strengthening processing equipment includes a number of temperature control boxes. The number of temperature control boxes includes, from left to right in sequence, a feeding box, a heating-up box, a constant temperature box, a cooling-down box and a discharging box. A number of conveying rollers are equally spaced in each temperature control box. The number of conveying rollers are all horizontally rotatably connected in the temperature control box for conveying the glass. Two groups of heating elements are provided in both the heating-up box and the constant temperature box. One group of heating elements is located above the number of conveying rollers, and the other group of heating elements is located below the number of conveying rollers.
[0007] Optionally, a rotating rod is horizontally rotatably connected in each of the number of temperature control boxes. A worm gear is provided at one end of each conveying roller in the length direction. A number of worm gears are equally spaced on the rotating rod. The worm gears and the worm wheels correspond one by one, and each worm gear meshes with the corresponding worm.
[0008] Optionally, the constant temperature box includes a top cover, and the top cover is vertically slidably connected to the upper end of the constant temperature box.
[0009] Optionally, the heating element includes a plurality of heat conduction tubes, heating wires are sleeved outside each heat conduction tube, and a sliding block for adjusting the turns distribution of the heating wires is arranged on the heat conduction tube.
[0010] Optionally, heat conduction plates are arranged between the plurality of conveying rollers and the heat conduction tubes for protecting the conveying rollers.
[0011] Optionally, the plurality of heat conduction plates and heat conduction tubes are both made of ceramic material.
[0012] Optionally, a plurality of cooling air ducts are arranged at equal intervals in the cooling box for cooling the glass. A group of heating elements are arranged in the cooling box, and the plurality of heat conduction tubes are evenly arranged above the plurality of conveying rollers.
[0013] Optionally, the porosity of the plurality of heat conduction tubes is less than 5%.
[0014] Optionally, the diameters of the plurality of conveying rollers are all greater than 50 mm and less than 100 mm.
[0015] The present application also provides a continuous step glass body strengthening processing technology.
[0016] A continuous step glass body strengthening processing technology includes the following steps: S1: Place the glass at the upper ends of the plurality of conveying rollers in the feeding box, and drive the glass to move into the heating box through the conveying of the plurality of conveying rollers; S2: When the glass enters the heating box, the two groups of heating elements in the heating box heat the glass and convey the glass into the constant temperature box; S3: The two groups of heating elements in the constant temperature box continue to heat the glass and convey the glass into the cooling box; S4: When the glass enters the cooling box, cool the glass and convey the glass into the discharging box for discharging.
[0017] In summary, the present application includes at least one of the following beneficial technical effects: 1. Driven by the conveying rollers, the glass enters the heating box, and the heating elements located on the upper and lower sides of the glass can heat the glass, thereby improving the uniformity of glass heating; 2. When the glass passes through the constant temperature zone, the height of the top cover can be adjusted according to the characteristics of the glass, thereby facilitating the control of the surface temperature of the glass and making the glass heat more evenly; 3. When conveying the glass, the conveying rollers are driven to rotate through the transmission of the worm and worm gear, and the glass can be conveyed forward or backward according to different requirements of glass processing. Different sizes of conveying rollers can also be set to adapt to different glass products. Description of the Drawings
[0018] Figure 1It is a schematic diagram of the overall structure of a continuous step glass body strengthening processing device.
[0019] Figure 2 It is a schematic diagram highlighting the heating chamber.
[0020] Figure 3 It is a schematic diagram highlighting the constant temperature chamber.
[0021] Figure 4 It is a schematic diagram highlighting the intake valve.
[0022] Figure 5 It is a schematic diagram highlighting the cooling air duct.
[0023] Explanation of reference numerals: 1, temperature control chamber; 11, conveying roller; 111, worm gear; 12, heating element; 121, heat conduction tube; 13, rotating rod; 14, worm; 15, heat conduction plate; 16, observation hole; 17, treatment hole; 2, feeding box; 3, heating chamber; 4, constant temperature chamber; 5, cooling chamber; 51, cooling air duct; 52, intake valve; 6, discharging box; 7, top cover; 71, heat insulation layer. Detailed implementation manners
[0024] The following further describes the present application in detail with reference to all the drawings.
[0025] The embodiment of the present application discloses a continuous step glass body strengthening processing device.
[0026] Refer to Figure 1 and Figure 2 , a continuous step glass body strengthening processing device includes a plurality of temperature control chambers 1. The plurality of temperature control chambers 1 sequentially include, from left to right, a feeding box 2, a heating chamber 3, a constant temperature chamber 4, a cooling chamber 5 and a discharging box 6. A plurality of conveying rollers 11 are evenly arranged at equal intervals in each temperature control chamber 1. The plurality of conveying rollers 11 are all horizontally rotatably connected in the temperature control chamber 1 for conveying the glass.
[0027] Refer to Figure 2 and Figure 3 , two groups of heating elements 12 are arranged in both the heating chamber 3 and the constant temperature chamber 4. One group of heating elements 12 is located above the plurality of conveying rollers 11, and the other group of heating elements 12 is located below the plurality of conveying rollers 11; Refer to Figure 1 , first place the glass on the upper ends of the plurality of conveying rollers 11 in the feeding box 2. As the conveying rollers 11 rotate, the glass sequentially passes through the feeding box 2, the heating chamber 3, the constant temperature chamber 4, the cooling chamber 5 and the discharging box 6; the processing of the glass is completed.
[0028] Refer to Figure 1 and Figure 4, each temperature control box 1 is provided with an observation hole 16 for monitoring the processing state of the glass, and each temperature control box 1 is provided with a processing hole 17 for adjusting the internal structure of the temperature control box 1.
[0029] Among them, the diameters of several conveying rollers 11 are all greater than 50 mm and less than 100 mm, and the diameters of the adapted conveying rollers 11 can be set in advance according to different product models of the glass.
[0030] Refer to Figure 2 and Figure 3 , several rotating rods 13 are horizontally rotatably connected in several temperature control boxes 1. One end of each conveying roller 11 in the length direction is provided with a worm gear 111. Several worm gears 14 are arranged at equal intervals on the rotating rod 13. The worm gears 14 and the worm gears 111 correspond one by one, and each worm gear 111 meshes with the corresponding worm gear 14; Place the glass on the upper ends of several conveying rollers 11 of the feeding box 2, and rotate the rotating rod 13 to drive several worm gears 14 to rotate simultaneously, and then drive several worm gears 111 to rotate, and then drive several conveying rollers 11 to rotate in the same direction, and then drive the glass to move in the direction close to the heating box 3.
[0031] Among them, according to different requirements for processing glass, multiple heating boxes 3 can be set, and multiple heating boxes 3 can be connected end to end in sequence.
[0032] Refer to Figure 3 and Figure 4 , the heating element 12 includes several heat conduction tubes 121. Heating wires are sleeved outside the heat conduction tubes 121, and sliding blocks for adjusting the turn distribution of the heating wires are arranged on the heat conduction tubes 121; Before loading the glass, adjust the heating wire to a preset temperature, which is convenient for subsequent heating treatment of the glass; Heat conduction plates 15 are arranged between several conveying rollers 11 and the heat conduction tubes 121 to protect the conveying rollers 11; As the glass enters the heating box 3, the heating wire emits heat when it is energized, and then heats the surface of the glass.
[0033] Among them, each heating element 12 adopts self-tuning intelligent fuzzy control and has a three-phase balanced line layout. The configured power supply transformer adopts a multi-tap dry-type transformer to improve the efficiency of the power supply unit and reduce the loss and pollution to the power grid caused by harmonics.
[0034] Among them, the conveying rollers 11, the heat conduction plates 15 and the heat conduction tubes 121 are all made of ceramic material. The ceramic material has good heat conduction performance, which improves the heating effect on the glass.
[0035] Among them, the porosity of several heat conduction tubes 121 is less than 5%; The internal thermal resistance of the ceramic heat conduction tube 121 can be reduced, making the heat transfer more efficient and the heat transfer more uniform.
[0036] Refer to Figure 2 and Figure 3 As the conveying rollers 11 in the heating box 3 convey the glass, the glass is conveyed into the constant temperature box 4, and the heating wires in the constant temperature box 4 are adjusted in advance to a preset temperature, which is convenient for subsequent constant temperature heating treatment of the glass.
[0037] Among them, according to different requirements for processing glass, multiple constant temperature boxes 4 can also be set, and multiple constant temperature boxes 4 can be connected end to end in sequence.
[0038] Refer to Figure 1 and Figure 3 The constant temperature box 4 includes a top cover 7, and a heat insulation layer 71 is arranged below the top cover 7. The height can be adjusted according to the characteristics of the glass, and the adjustment range of the height is less than 300 mm. By adjusting the temperature of the top cover 7, the temperature control is made more accurate, and the uniformity of heat absorption on the upper and lower sides of the glass is improved.
[0039] Among them, the top cover 7 is made of a high-efficiency, lightweight, and high thermal shock resistant refractory fiber material.
[0040] Refer to Figure 3 and Figure 4 As the conveying rollers 11 in the constant temperature box 4 drive, the material is moved into the cooling box 5.
[0041] Refer to Figure 4 and Figure 5 In the cooling box 5, a number of cooling air ducts 51 are arranged at equal intervals for cooling the glass. A group of heating elements 12 are arranged in the cooling box 5. A number of heat conducting pipes 121 located in the constant temperature box 4 are evenly arranged above the number of conveying rollers 11. The cooling air ducts 51 communicate with the inside of the constant temperature box 4. An air inlet valve 52 is arranged at one end in the length direction of the cooling air duct 51. When cooling the glass, the air inlet valve 52 is controlled to open to ventilate the cooling box 5, thereby cooling the surface of the glass.
[0042] Among them, the cooling air duct 51 is made of metal material.
[0043] Refer to Figure 1 and Figure 5 As the glass is conveyed by the conveying rollers 11, the glass is conveyed to the discharge box 6, and the material can be discharged, completing the processing of the glass.
[0044] The embodiment of the present application also discloses a continuous step glass body strengthening processing technology.
[0045] A continuous step glass body strengthening processing technology includes the following steps: S1: Place the glass on the upper ends of the several conveying rollers 11 in the feeding box 2, and drive the glass to move into the heating box 3 through the conveying of the several conveying rollers 11; S2: The glass enters the heating chamber 3, and the two groups of heating elements 12 in the heating chamber 3 heat the glass and convey the glass into the constant temperature chamber 4; S3: The two groups of heating elements 12 in the constant temperature chamber 4 continue to heat the glass and convey the glass into the cooling chamber 5; S4: The glass enters the cooling chamber 5, the glass is cooled, and the glass is conveyed into the discharge box 6 for discharging.
[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.
Claims
1. A continuous step glass body strengthening processing device, comprising a plurality of temperature control boxes (1), characterized in that: A number of the temperature control boxes (1) successively include, from left to right, a feeding box (2), a heating box (3), a constant temperature box (4), a cooling box (5) and a discharging box (6). A number of conveying rollers (11) are evenly spaced in each temperature control box (1). The a number of conveying rollers (11) are all horizontally rotatably connected in the temperature control box (1) and are used for conveying glass. Two groups of heating elements (12) are arranged in both the heating box (3) and the constant temperature box (4). One group of heating elements (12) is located above the a number of conveying rollers (11), and the other group of heating elements (12) is located below the a number of conveying rollers (11).
2. The continuous step glass body strengthening processing equipment according to claim 1, characterized in that: A rotating rod (13) is horizontally rotatably connected in a number of the temperature control boxes (1). A worm gear (111) is arranged at one end of each conveying roller (11) in the length direction. A number of worm shafts (14) are arranged at equal intervals on the rotating rod (13). The worm shafts (14) correspond to the worm gears (111) one by one, and each worm gear (111) meshes with the corresponding worm shaft (14).
3. A continuous step glass body strengthening processing device according to claim 1, characterized in that: The constant temperature box (4) includes a top cover (7), and the top cover (7) is vertically slidably connected to the upper end of the constant temperature box (4).
4. A continuous step glass body strengthening processing device according to claim 1, characterized in that: The heating element (12) includes a number of heat conduction tubes (121). Heating wires are sleeved outside the heat conduction tubes (121), and sliding blocks for adjusting the turn distribution of the heating wires are arranged on the heat conduction tubes (121).
5. A continuous step glass body strengthening processing device according to claim 4, characterized in that: Heat conduction plates (15) are arranged between a number of the conveying rollers (11) and the heat conduction tubes (121) for protecting the conveying rollers (11).
6. A continuous step glass body strengthening processing device according to claim 4, characterized in that: A number of the heat conduction plates (15) and the heat conduction tubes (121) are both made of ceramic material.
7. A continuous step glass body strengthening processing device according to claim 4, characterized in that: A number of cooling air ducts (51) are evenly spaced in the cooling box (5) for cooling the glass. A group of heating elements (12) is arranged in the cooling box (5), and a number of heat conduction tubes (121) are evenly distributed above a number of the conveying rollers (11).
8. A continuous stepper glass body strengthening processing device according to claim 1, characterized in that: The porosity of a number of the heat conduction tubes (121) is less than 5%.
9. A continuous step glass body strengthening processing device according to claim 1, characterized in that: The diameter of a number of the conveying rollers (11) is greater than 50 mm and less than 100 mm.
10. A continuous step glass body strengthening processing process, which uses the step glass body strengthening processing equipment described in claim 3 to process glass, and includes the following steps: S1: Place the glass on the upper ends of a number of the conveying rollers (11) in the feeding box (2), and drive the glass to move into the heating box (3) through the conveying of the a number of conveying rollers (11); S2: When the glass enters the heating box (3), the two groups of heating elements (12) in the heating box (3) heat the glass and convey the glass into the constant temperature box (4); S3: The two groups of heating elements (12) in the constant temperature box (4) continue to heat the glass and convey the glass into the cooling box (5); S4: When the glass enters the cooling box (5), cool the glass and convey the glass into the discharging box (6) for discharging.