A heating and cooling device for laminated glass
Patent Information
- Application Number
- CN202522453757.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-19
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-19
AI Technical Summary
The loading and unloading process of laminated glass is labor-intensive, poses high safety risks, and has poor positioning accuracy, which affects production efficiency and product quality consistency.
The heating and cooling equipment includes a feeding trolley, a guiding system, and a magnet device. Through the cooperation of the guide column and the slot, the magnet attracts the material and locks it with the locking casters, so as to achieve precise, rapid movement and stable positioning of the feeding rack inside and outside the furnace.
It reduces the labor intensity of operators, improves the efficiency and safety of loading and unloading, ensures uniform heating and cooling of glass in the furnace, and enhances the automation level of the production line and the consistency of product quality.
Smart Images
Figure CN224933251U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laminated glass processing technology, and in particular to a heating and cooling device for laminated glass. Background Technology
[0002] The sintering and curing process of laminated glass is the core of its production. This process typically involves a heating and cooling process. First, the laminated glass and the interlayer film are fed into a sintering device. Through a precisely controlled heating process, the interlayer film melts, flows, and expels air, achieving initial bonding. Subsequently, a strictly controlled slow cooling process must be carried out to eliminate thermal stress inside the glass and ensure the safety and optical performance of the product.
[0003] Currently, the technology of the sintering furnace itself, such as heating uniformity and cooling control, is relatively mature. However, in actual production, a long-standing bottleneck affecting efficiency and safety is often overlooked—the loading, furnace entry, and unloading process after glass lamination. Traditional methods are labor-intensive and pose high safety risks: laminated glass semi-finished products are large and heavy, usually requiring simple flatbed carts or multiple workers to move them. Pushing the racks carrying the glass into the high-temperature furnace not only requires enormous physical strength but is also highly susceptible to damage due to uneven force or inaccurate positioning, causing the glass to collide with the furnace door, resulting in product breakage or even personal injury. Poor positioning accuracy affects furnace uniformity: manually pushing the racks makes it difficult to ensure their precise centering within the furnace. If the racks deviate from their intended positions, they may deviate from the optimal thermal zone within the furnace, leading to uneven heating or cooling of the glass in different locations, thus affecting product quality consistency.
[0004] Therefore, a solution is needed to optimize the material flow process before and after sintering of laminated glass, aiming to achieve labor-saving, precise, safe and efficient automated loading and unloading operations, thereby fundamentally improving the automation level and overall efficiency of the entire production line. Utility Model Content
[0005] This invention addresses the shortcomings of existing technologies by developing a heating and cooling device for laminated glass, which can quickly and accurately complete loading and unloading operations, thereby improving work efficiency.
[0006] The technical solution of this utility model to solve the technical problem is as follows: a heating and cooling device for laminated glass, including a base, a sintering furnace, a feeding rack, a control box, and a loading cart. The sintering furnace and the control box are respectively installed on the base. A furnace door is hinged on the sintering furnace. Electric heating components are arranged in an array inside the sintering furnace. A coil is installed inside the sintering furnace. A cooling system is connected to the outside of the coil. The control box is electrically connected to the cooling system and the electric heating components respectively. The feeding rack is placed inside the sintering furnace. The upper surface of the loading cart is flush with the ground inside the sintering furnace.
[0007] Preferably, a guiding system is also included, which includes a first ground rail set on the ground inside the sintering furnace and a second ground rail set on the upper surface of the feeding car. The first ground rail and the second ground rail cooperate with each other, and the bottom of the feeding rack is provided with rollers that cooperate with the first ground rail and the second ground rail.
[0008] Preferably, the feeding car is equipped with guide columns, and slots are provided at corresponding positions on the sintering furnace.
[0009] Preferably, the guide column array is provided.
[0010] Preferably, the guide post has a variable diameter section in the middle and a chamfer at the end.
[0011] Preferably, the feeding car is equipped with a magnet, and an iron sheet is provided at a corresponding position on the sintering furnace.
[0012] Preferably, the bottom array of the loading trolley is equipped with lockable casters.
[0013] The effects provided in the utility model description are merely those of the embodiments, and not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects: 1. By setting up a loading trolley, in conjunction with the first and second ground rails and the rollers on the unloading rack, rapid loading can be achieved, reducing the labor intensity of operators and improving efficiency; 2. By setting guide columns and slots, the accuracy of the docking between the first and second ground rails can be further improved, ensuring the stability of the material feeding rack during movement; 3. By designing a variable diameter section in the middle of the guide post and setting a chamfer at the end, it is easier to insert the guide post into the slot. 4. By setting magnets on the loading car and using them in conjunction with iron sheets on the sintering furnace, the stability of the loading car after docking can be further improved; 5. By using locking casters to move the loading trolley, it can be locked after positioning, improving the stability of the loading rack movement. Attached Figure Description
[0014] Figure 1 This is the front view of the present invention; Figure 2 This is the right view of the present invention; Figure 3 for Figure 2 A magnified view of a portion of region A in the middle; Figure 4 This is a general structural diagram of the present invention; Figure 5 Here is a structural diagram of the loading trolley; Figure 6 This is a structural diagram of the material feeding rack.
[0015] The components include: 1. Base; 2. Sintering furnace; 21. Furnace door; 22. Electric heating element; 23. First ground rail; 24. Slot; 25. Iron sheet; 3. Feeding rack; 31. Roller; 4. Control box; 5. Cooling system; 6. Feeding trolley; 61. Locking casters; 62. Second ground rail; 63. Guide column; 631. Variable diameter section; 632. Chamfer; 64. Magnet. Detailed Implementation
[0016] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.
[0017] Example 1 See Figures 1 to 6 A heating and cooling device for laminated glass includes a base 1, a sintering furnace 2, a feeding rack 3, a control box 4, and a loading cart 6. The sintering furnace 2 and the control box 4 are respectively mounted on the base 1. A furnace door 21 is hinged to the sintering furnace 2. Electric heating elements 22 are arranged in an array inside the sintering furnace 2. A coil is installed inside the sintering furnace 2, and a cooling system 5 is connected to the outside of the coil. The cooling system 5 adopts an existing water cooling system. The control box 4 is electrically connected to the cooling system 5 and the electric heating elements 22 respectively. The feeding rack 3 is placed inside the sintering furnace 2, and the upper surface of the loading cart 6 is flush with the ground inside the sintering furnace 2.
[0018] It also includes a guiding system, which includes a first ground rail 23 set on the ground inside the sintering furnace 2 and a second ground rail 62 set on the upper surface of the feeding car 6. The first ground rail 23 and the second ground rail 62 cooperate with each other, and the bottom of the feeding rack 3 is provided with rollers 31 that cooperate with the first ground rail 23 and the second ground rail 62.
[0019] The feeding car 6 is equipped with guide columns 63, and the sintering furnace 2 is equipped with corresponding slots 24.
[0020] The guide posts 63 are arranged in an array.
[0021] The guide post 63 has a variable diameter section 631 in the middle and a guide angle 632 at the end.
[0022] The feeding car 6 is equipped with a magnet 64, and the sintering furnace 2 is equipped with an iron sheet 25 at the corresponding position.
[0023] The bottom array of the loading trolley 6 is equipped with locking casters 61.
[0024] Working principle The core principle of this equipment is to achieve precise and rapid docking between a movable feeding cart 6 and a fixed sintering furnace 2, thereby enabling the mechanized transfer of the feeding rack 3 carrying laminated glass inside and outside the furnace, thus efficiently completing the two key process steps of hot pressing sintering and forced cooling of the glass.
[0025] The stacked glass sheets are pushed into the sintering furnace 2 by the feeding rack 3. After closing the furnace door 21, the electric heating element 22 is activated via the control box 4 to uniformly and programmatically heat the air inside the furnace. The heat softens and melts the film, and under the weight of the glass itself, the film layer adheres completely to the glass, expelling air bubbles and achieving bonding. After the sintering process is completed, the equipment needs to be rapidly cooled from high temperature to room temperature. At this time, the control box 4 will shut down the electric heating element 22 and activate the cooling system 5. The cooling system 5 pumps the cooling medium into the coils wound inside the sintering furnace 2. The coils, acting as a large heat exchanger, rapidly absorb heat from the furnace and the glass through thermal radiation and convection, and carry the heat out of the furnace through the circulating cooling medium, thereby achieving rapid and controllable cooling. This helps with shaping and improves the strength and production efficiency of the glass.
[0026] After docking, the first ground rail 23 inside the sintering furnace 2 and the second ground rail 62 on the feeding car 6 form a seamless continuous track. The rollers 31 at the bottom of the unloading rack 3 can roll smoothly and with low resistance along this track, enabling easy movement of heavy objects. Through the cooperation of the guide column 63 and the slot 24, it is ensured that the second ground rail 62 on the feeding car 6 is aligned with the first ground rail 23 when it approaches the sintering furnace 2, avoiding misalignment or jamming. The attraction between the magnet 64 and the iron sheet 25, and the locking of the locking casters 61, together ensure the stability of the feeding car 6 after docking, preventing the vehicle from moving during the transfer of the unloading rack 3, and ensuring safe and stable operation.
[0027] Detailed operating procedures The empty feeding rack 3 is pushed onto the loading trolley 6, and the operator places the laminated glass to be processed onto the feeding rack 3. The loading trolley 6 is pushed to the front of the sintering furnace 2. The locking casters 61 at the bottom of the loading trolley 6 make movement easy and flexible. The operator roughly aligns the loading trolley 6 with the furnace opening of the sintering furnace 2 and slowly pushes the loading trolley 6 closer to the furnace body. At this time, the guide post 63 on the loading trolley 6 begins to insert into the slot 24 on the sintering furnace 2. As it continues to advance, the chamfer 632 at the end of the guide post 63 and the variable diameter section 631 in the middle allow for a certain degree of error, ultimately achieving precise positioning and ensuring that the first ground rail 23 and the second ground rail 62 are completely aligned. After docking, the locking device of the locking casters 61 on the loading trolley 6 is stepped on to fix the wheels. At the same time, the magnet 64 on the loading trolley 6 engages with the iron plate 25 on the furnace body, providing additional lateral stability and preventing the vehicle from sliding. Open the hinged furnace door 21, and the operator smoothly pushes the glass-carrying rack 3 from the loading trolley 6 into the designated position inside the sintering furnace 2 via the track system. Close the furnace door 21, and set the sintering temperature and cooling curves on the control box 4. The control box 4 automatically starts the electric heating element 22 and heats according to the program. The sintering process begins. After the heat preservation is completed, the control box 4 cuts off the heating and starts the cooling system 5. The cooling medium circulates in the coil to rapidly and forcibly cool the glass. When the furnace temperature drops to a safe range, the operator pushes the emptied loading trolley 6 back to the front of the furnace, repeats the docking and locking operation in step two, opens the furnace door 21, and easily pulls the processed glass-carrying rack 3, which carries the finished laminated glass, from inside the furnace onto the loading trolley 6. Release the caster locks, push the loading trolley 6 to the unloading area, and unload the finished laminated glass from the glass-carrying rack 3.
[0028] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not a limitation on the scope of protection of the present utility model. Based on the technical solution of the present utility model, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the present utility model.
Claims
1. A heating and cooling device for laminated glass, characterized in that: The sintering furnace includes a base (1), a sintering furnace (2), a feeding rack (3), a control box (4), and a loading cart (6). The sintering furnace (2) and the control box (4) are respectively installed on the base (1). The sintering furnace (2) is hinged with a furnace door (21). The sintering furnace (2) is equipped with an array of electric heating components (22). The sintering furnace (2) is equipped with a coil. The coil is connected to a cooling system (5). The control box (4) is electrically connected to the cooling system (5) and the electric heating components (22). The feeding rack (3) is placed inside the sintering furnace (2). The upper surface of the loading cart (6) is flush with the ground inside the sintering furnace (2).
2. The heating and cooling device for laminated glass according to claim 1, characterized in that, It also includes a guiding system, which includes a first ground rail (23) set on the ground inside the sintering furnace (2) and a second ground rail (62) set on the upper surface of the feeding car (6). The first ground rail (23) and the second ground rail (62) cooperate with each other, and the bottom of the feeding rack (3) is provided with rollers (31) that cooperate with the first ground rail (23) and the second ground rail (62).
3. The heating and cooling device for laminated glass according to claim 1, characterized in that, The feeding car (6) is equipped with guide columns (63), and the sintering furnace (2) is equipped with corresponding slots (24).
4. The heating and cooling device for laminated glass according to claim 3, characterized in that, The guide pillars (63) are arranged in an array.
5. The heating and cooling device for laminated glass according to claim 3, characterized in that, The guide post (63) has a variable diameter section (631) in the middle and a guide angle (632) at the end.
6. The heating and cooling device for laminated glass according to claim 3, characterized in that, The feeding car (6) is equipped with a magnet (64), and the sintering furnace (2) is equipped with an iron sheet (25) at the corresponding position.
7. The heating and cooling device for laminated glass according to claim 1, characterized in that, The bottom array of the loading trolley (6) is equipped with locking casters (61).