Glass laser hole cutting equipment
By using heating liquid in glass laser hole cutting equipment for uniform heating, the warping and fragmentation problems caused by heat unevenness during glass cutting are solved, and energy utilization and safety are improved.
Patent Information
- Application Number
- CN202422087301.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-27
AI Technical Summary
In the prior art, there are problems such as warping deformation or fragmentation caused by heat in the cutting of glass during cutting and heating, especially when using tunnel furnaces or metal heating plates, there are problems with low energy utilization and glass warping.
The heating device includes a container body and a heating piece. The container body contains liquid. The liquid is heated through the heating piece to heat the glass evenly to avoid direct contact with the glass. Combined with the clamping device and the cooling device, the principle of thermal expansion and contraction is used to achieve uniform heating and cooling of the glass.
The uniform heating of the glass is achieved, which avoids warping, deformation and fragmentation, improves energy utilization and saves energy.
Smart Images
Figure CN223074080U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of glass cutting, and particularly relates to a glass laser hole-cutting device. Background Art
[0002] Laser hole-cutting technology is currently being rapidly promoted in the glass industry, replacing traditional water jet cutting technology. This technology mainly includes four steps: First, a laser cuts a closed path along the glass surface; Second, the above-mentioned closed path is irradiated with infrared laser thermal radiation; Third, the glass is heated as a whole to raise the temperature; Fourth, the area within the closed path is rapidly cooled, so that the glass within the closed path is separated from the glass substrate, thus completing the glass hole-cutting.
[0003] In the above third step, currently in the industry, a tunnel furnace or a metal heating plate is generally used to heat flat glass as a whole. Among them, the disadvantage of tunnel furnace heating is that the energy utilization rate of the tunnel furnace is very low (about 30%), and the equipment consumes a large amount of electricity every year; the metal heating plate includes a single-sided metal heating plate method and a double-sided metal heating plate method. Among them, the disadvantage of single-sided metal heating plate heating is that there will be an obvious temperature difference between the upper and lower surfaces of the glass, causing the glass to warp. Especially when rapidly heating, this rapid deformation may even cause the glass to break; although the double-sided metal heating plate can solve the problem of temperature difference between the upper and lower surfaces and glass warping during single-sided metal heating plate heating, a very high parallelism must be ensured between the upper and lower heating plates. Otherwise, there will be an obvious difference in the heating speed at different positions of the glass, and in severe cases, it will also cause the glass to break. Summary of the Utility Model
[0004] The main purpose of the utility model is to provide a glass laser hole-cutting device, aiming to solve the technical problem that the glass is prone to warping deformation or even breaking due to uneven heating during glass cutting and heating in the prior art.
[0005] To achieve the above purpose, the utility model provides a glass laser hole-cutting device, including:
[0006] A frame;
[0007] A laser cutting device, which is arranged on the frame and is used for cutting a closed cutting groove on the glass along a predetermined trajectory;
[0008] A heating device, which is arranged on the frame and is used for heating the glass cut by the laser cutting device;
[0009] A cooling device is provided on the frame and is used to cool the glass inside the cutting groove after being heated by the heating device, so that the cutting groove divides the glass into an inner glass inside the cutting groove and an outer glass outside the cutting groove along the thickness direction of the glass, and the inner glass is separated from the outer glass along the cutting groove;
[0010] Among them, the heating device includes a container body and a heating element. The container body is provided with a cavity with an opening. The cavity is used to hold a liquid, and the opening allows the glass to enter and exit the cavity; the heating element is used to heat the liquid in the cavity.
[0011] In some embodiments, the heating element is located inside the cavity and is used to heat the liquid in the cavity.
[0012] In some embodiments, the heating element is a heating tube, and the heating tube is bent and arranged at the bottom of the cavity.
[0013] In some embodiments, the glass laser hole cutting device further includes:
[0014] A clamping device is provided on the frame and is used to transfer the glass cut by the laser cutting device to the cavity, and to transfer the glass heated by the heating device from the cavity to the cooling device.
[0015] In some embodiments, the clamping device includes a bracket and at least one clamping jaw. The at least one clamping jaw is provided on the bracket, and the at least one clamping jaw is used to clamp the glass to drive the glass to be transferred between the laser cutting device, the heating device and the cooling device.
[0016] In some embodiments, the clamping device includes at least two clamping jaws, and the at least two clamping jaws are spaced apart on the bracket.
[0017] In some embodiments, the cooling device includes a refrigeration mechanism and a cooling block. The refrigeration mechanism is used to refrigerate the cooling block, and the cooling block is used to attach to the inner glass heated by the heating device to reduce the temperature of the inner glass, so that the inner glass is separated from the outer glass along the cutting groove.
[0018] In some embodiments, the horizontal cross-sectional shape of the container body is one of a rectangle, a circle, and an ellipse.
[0019] The glass laser hole-cutting device provided by this application is equipped with a heating device. The heating device includes a container body and a heating element. The container body is provided with a cavity having an opening. The cavity is used to hold a liquid, and the opening allows the glass to enter and exit the cavity; the heating element is used to heat the liquid in the cavity. In this way, when it is necessary to heat the cut glass, the glass can be directly placed in the cavity, and the heating element is used to heat the liquid in the cavity, so as to uniformly heat different positions of the glass. During the heating process, the heating device will not exert a pressing force on the glass, avoiding the situation that the glass warps or even breaks due to temperature differences at different positions during the heating process. Moreover, the heating device of this application has high energy utilization efficiency and saves energy. Description of the Drawings
[0020] Figure 1 It is a schematic structural diagram of an embodiment of the glass laser hole-cutting device of the present utility model;
[0021] Figure 2 It is a schematic structural diagram of an embodiment of the glass laser hole-cutting device of the present utility model;
[0022] Figure 3 It is a structural block diagram of an embodiment of the glass laser hole-cutting device of the present utility model.
[0023] Explanation of the reference numerals in the drawings:
[0024] Detailed Description of the Embodiment
[0025] Next, the solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.
[0026] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If this specific posture changes, then the directional indications will also change accordingly.
[0027] It should also be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.
[0028] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0029] The present utility model provides a glass laser hole-cutting device 100. Referring to Figures 1 to 3 , the glass laser hole-cutting device 100 is provided with a frame and a laser cutting device 4, a heating device 1 and a cooling device 5 disposed on the frame. The laser cutting device 4 is used to cut the glass 3 along a predetermined trajectory to form a closed cutting groove 31; the heating device 1 is used to heat the glass 3 cut by the laser cutting device 4; the cooling device 5 is used to cool the glass inside the cutting groove 31 after being heated by the heating device 1, so that the cutting groove 31 divides the glass 3 in the thickness direction of the glass 3 into an inner glass 33 located inside the cutting groove 31 and an outer glass 32 located outside the cutting groove 31, and the inner glass 33 is separated from the outer glass 32 along the cutting groove 31.
[0030] Among them, the heating device 1 includes a container body 11 and a heating member 12. The container body 11 is provided with a cavity 112 having an opening 111. The opening 111 of the container body 11 is used for the glass 3 to enter and exit the cavity 112; the cavity 112 is used to hold a liquid, such as water, etc. In theory, any liquid that will not generate harmful gases and damage the glass 3 during heating can be used, and the present utility model does not limit this here.
[0031] The heating member 12 of the heating device 1 is used to heat the liquid in the cavity 112. The heating member 12 can be one of a ceramic heating element and an electric heating element, and can be selected and set according to actual situations. The embodiments of the present application do not limit this here.
[0032] When it is necessary to heat the glass 3 cut by the laser cutting device 4, the glass 3 can be directly placed into the cavity 112, and the heating member 12 is used to heat the liquid in the cavity 112, so that the surface and inside of the glass 3 can be heated evenly. During the entire heating process, the heating device 1 will not generate a pressing force on the glass 3, avoiding the situation that the glass 3 warps or even breaks due to temperature differences at different positions during heating.
[0033] In addition, after the heating member 12 heats for a preset time, the liquid temperature in the cavity 112 reaches saturation. By using the heating member 12 to maintain the liquid temperature in the cavity 112, compared with traditional tunnel furnace heating and metal plate heating, the energy utilization efficiency is high, the loss is small, the cost is low, the applicability is good, and the heating is simple and convenient.
[0034] Furthermore, the heating member 12 is located inside the cavity 112 and is used to heat the liquid in the cavity 112.
[0035] It can be understood that the heating member 12 can be suspended in the center of the cavity 112, or attached to one side of the cavity 112 wall, or placed on the bottom of the cavity 112. In theory, any placement method that can quickly heat the liquid in the cavity 112 can be adopted, and the present utility model does not limit this here.
[0036] Furthermore, the heating member 12 is a heating tube, which has a simple structure, is easy to implement and maintain, and has a fast heating speed. By heating the liquid in the cavity 112 and using the water temperature to heat the glass 3, it avoids directly touching the glass 3 hard and damaging the glass 3. At the same time, it also ensures uniform heating of different positions of the glass 3, and solves the problem that the glass warps or even breaks due to uneven heating.
[0037] Furthermore, the heating tube is arranged in a bent shape at the bottom of the cavity 112.
[0038] It can be understood that the heating tube can be one of a stainless steel electric heating tube, a quartz electric heating tube, a Teflon electric heating tube, a titanium electric heating tube, etc. The heating tube is placed at the bottom of the cavity 112 in a W shape or an S shape, etc., to increase the heating area of the heating tube, facilitate heating the liquid in the entire cavity 112, and has a fast heating speed, realizing all-round heating of the cut glass 3.
[0039] Of course, in other embodiments, the heating tube can also be arranged in common shapes such as U-shaped, L-shaped, straight-line-shaped, fin-shaped, special-shaped, etc., and the embodiments of the present utility model do not limit this here.
[0040] Furthermore, a clamping device 2 is also mounted on the frame of the glass laser drilling device 100, which is used to transfer the glass 3 cut by the laser cutting device 4 from the laser cutting device 4 to the cavity 112, and to transfer the glass 3 heated by the heating device 1 from the cavity 112 to the cooling device 5.
[0041] It can be understood that the clamping device 2 can be a clamping structure or an adsorption structure. The clamping device 2 with a clamping structure is easier to install, has simple operation and low cost; the clamping device 2 with an adsorption structure has stronger and more stable clamping ability. Of course, the clamping device 2 can also be other common structures, as long as it can achieve the purpose of transferring the glass between the laser cutting device 4, the cavity 112 and the cooling device 5.
[0042] In this embodiment, the clamping device 2 is of a clamping structure. The clamping device 2 includes a bracket 21 and at least one clamping jaw 22. The at least one clamping jaw 22 is arranged on the bracket 21, and the at least one clamping jaw 22 is used to clamp the glass 3 to drive the glass 3 to be transferred between the laser cutting device 4, the heating device 1 and the cooling device 5. Exemplarily, a plurality of mounting holes are provided on the bracket 21, and the clamping jaw 22 is installed on the bracket 21 by screws, which is simple to operate and convenient for subsequent quick disassembly and repair.
[0043] After the laser cutting device 4 cuts the glass 3, the clamping jaw 22 of the clamping device 2 moves above the laser cutting device 4. After the clamping jaw 22 clamps the glass, it moves to the heating device 1, and the glass 3 is sent into the cavity 112 through the opening 111 of the heating device 1. After the glass 3 is heated by the heating device 1, the clamping jaw 22 clamps and takes out the glass 3 from the cavity 112 and moves it to the cooling device 5. The clamping jaw 22 releases the glass 3 and places it on the cooling device 5 for subsequent cooling and separation.
[0044] Furthermore, the clamping device 2 includes at least two clamping jaws 22, and the at least two clamping jaws 22 are spaced apart on the bracket 21.
[0045] In this embodiment, the clamping device 2 is provided with two clamping jaws 22, which are spaced and installed at both ends of the bracket 21. The two clamping jaws 22 are respectively used to clamp the two side surfaces of the glass 3, which can increase the clamping effect of the clamping device 2 on the glass 3, improve the safety and stability of the transfer of the glass 3 between devices, and avoid damage to the glass 3 caused by insufficient clamping force.
[0046] Of course, in other embodiments, the number of the clamping jaws 22 can also be 3, 4, etc., which are specifically set according to the actual situation, and the embodiments of the present invention are not limited herein.
[0047] Furthermore, the cooling device 5 includes a refrigeration mechanism and a cooling block. The refrigeration mechanism is used to refrigerate the cooling block, and the cooling block is used to attach to the inner glass 33 heated by the heating device 1 to reduce the temperature of the inner glass 33, so that the inner glass 33 is separated from the outer glass 32 along the cutting groove 31.
[0048] In this embodiment, the refrigeration mechanism is used to cool the cooling block. After being cooled, the cooling block adheres to the surface of the inner glass 33. Using the principle of thermal expansion and contraction, a cut seam of 10 μm to 20 μm is generated at the cut groove 31 between the inner glass 33 and the outer glass 32, so that the inner glass 33 can be separated from the outer glass 32, and finally the entire glass laser cutting hole is completed.
[0049] Furthermore, the material of the cooling block of the cooling device 5 can be iron, copper, aluminum, etc. In theory, any material with high thermal conductivity can be used to make the cooling block of this application, and this application does not limit it here.
[0050] In this embodiment, the material of the cooling block is copper. At room temperature, the thermal conductivity of pure copper is about 400 W / (m·K), which is much higher than that of iron. At the same time, under the same volume, the density of copper is greater than that of aluminum, that is, copper is heavier than aluminum under the same volume. When it fits with the inner glass 33, the force exerted on the inner glass 33 is more likely to promote the separation of the inner glass 33 from the outer glass 32.
[0051] Furthermore, the horizontal cross-sectional shape of the container body 11 is one of a rectangle, a circle, and an ellipse, and this embodiment of the present utility model does not limit it here.
[0052] The steps of the glass laser cutting hole device 100 of this application embodiment for cutting holes in glass include:
[0053] The first step is to use the laser cutting device 4 to output picosecond laser (CT = 10 s / pcs) to cut a cut groove 31 with a diameter of 150 mm on the glass 3 with a size of 600×900 mm and a thickness of 6 mm (as Figure 3 shown);
[0054] The second step is to use the laser cutting device 4 to output CO2 laser (CT = 10 s / pcs) to scan the cut groove 31 generated in the first step, so that the cut groove 31 penetrates the entire glass 3 along the thickness direction of the glass 3;
[0055] The third step is to use the jaws 22 of the clamping device 2 to transfer the glass 3 from the laser cutting device 4 to the cavity 112 of the container body 11 of the heating device 1 for soaking and heating, and the heating element 12 heats and maintains the water temperature in the cavity 112 to about 90°C;
[0056] The fourth step is to use the refrigeration mechanism of the cooling device 5 to cool the copper block, and attach the copper block to the inner glass 33 for rapid cooling. Thus, using the principle of thermal expansion and contraction, the cut groove 31 divides the glass 3 into the inner glass 33 inside the cut groove 31 and the outer glass 32 outside the cut groove 31 along the thickness direction of the glass 3. A cut seam of 15 μm is generated between the inner glass 33 and the outer glass 32. When pressure is applied, the inner glass 33 separates from the outer glass 32, thereby completing the glass laser cutting hole.
[0057] It should be noted that the purpose of the implementation of the second step above is only to improve the integrity rate of the cutting groove 31 cut by the laser cutting device 4 on the glass 3, and it is not a necessary technical means for the glass laser drilling device 100 to drill holes in the glass 3. When the bottom thickness of the glass 3 is small and / or the yield requirement is not high, the second step can be omitted. Specifically, it can be determined according to the actual working conditions. In addition, the embodiments of the present invention are not limited here.
[0058] The above are only partial or preferred embodiments of the present invention. Whether in terms of text or drawings, the scope of protection of the present invention cannot be limited thereby. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the concept of a whole of the present invention, or any direct / indirect application in other related technical fields is included in the scope of protection of the present invention.
Claims
1. A glass laser hole-cutting device, characterized in that, Comprising: Frame; Laser cutting device, which is arranged on the frame and is used to cut the glass along a predetermined track to form a closed cutting groove; Heating device, which is arranged on the frame and is used to heat the glass cut by the laser cutting device; Cooling device, which is arranged on the frame and is used to cool the glass inside the cutting groove after being heated by the heating device, so that the cutting groove divides the glass into an inner glass inside the cutting groove and an outer glass outside the cutting groove along the thickness direction of the glass, and makes the inner glass separate from the outer glass along the cutting groove; Wherein, the heating device includes a container body and a heating element. The container body is provided with a cavity with an opening. The cavity is used to hold liquid, and the opening is for the glass to enter and exit the cavity; the heating element is used to heat the liquid in the cavity.
2. The glass laser hole-cutting device according to claim 1, wherein The heating element is located inside the cavity and is used to heat the liquid in the cavity.
3. The glass laser hole-cutting device according to claim 1, characterized in that, The heating element is a heating pipe, and the heating pipe is arranged in a bent shape at the bottom of the cavity.
4. The glass laser hole-cutting device according to any one of claims 1 to 3, characterized in that, The glass laser hole-cutting device further includes: Clamping device, which is arranged on the frame and is used to transfer the glass cut by the laser cutting device from the laser cutting device to the cavity, and is also used to transfer the glass heated by the heating device from the cavity to the cooling device.
5. The glass laser hole-cutting device according to claim 4, wherein, The clamping device includes a bracket and at least one jaw. The at least one jaw is arranged on the bracket, and the at least one jaw is used to clamp the glass to drive the glass to be transferred among the laser cutting device, the heating device and the cooling device.
6. The glass laser hole-cutting device according to claim 5, characterized in that, The clamping device includes at least two jaws, and the at least two jaws are arranged on the bracket at intervals.
7. The glass laser hole-cutting device according to any one of claims 1 to 3, characterized in that, The cooling device includes a refrigeration mechanism and a cooling block. The refrigeration mechanism is used to refrigerate the cooling block, and the cooling block is used to attach to the inner glass heated by the heating device to reduce the temperature of the inner glass, so that the inner glass separates from the outer glass along the cutting groove.
8. The glass laser hole-cutting device according to any one of claims 1 to 3, characterized in that, The horizontal cross-sectional shape of the container body is one of a rectangle, a circle, and an ellipse.