Synchronous lifting device for vacuum glass packaging
Through the synchronous lifting device and sealing carrier structure, the problem of complexity of parameter adjustment caused by warping in vacuum glass production is solved, efficient and stable vacuum glass sealing is achieved, production costs are reduced and the consistency of product quality is improved.
Patent Information
- Application Number
- CN202422943978.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-29
AI Technical Summary
In vacuum glass production, the warping of tempered glass makes it difficult to unify pressurization parameters, resulting in increased production costs and inconsistent product quality. Existing technologies require frequent adjustments to equipment parameters, which are complex to operate and rely on manual experience, affecting production efficiency and product quality.
The synchronous lifting device is used, through the lifting drive mechanism and the sealing load structure, to automatically adjust the pressing distance according to the glass thickness to ensure full contact between the glass and the pressing head. Combined with the non-metallic sealing platform and metal fixing plate, it reduces the impact on the heating induction coil, simplifies the operation process, and reduces the frequency of equipment adjustment and downtime.
It achieves efficient and stable sealing of vacuum glass, reduces production costs and scrap rates, improves product quality consistency, simplifies operating procedures, and reduces the time for equipment adjustment and calibration tests.
Smart Images
Figure CN223328967U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vacuum glass production, in particular to a synchronous lifting device for vacuum glass packaging. Background Art
[0002] Vacuum glass is a new type of green, energy-saving glass. Based on the principle of a thermos flask, vacuum glass is constructed by combining two sheets of glass and sealing them with a sealing material, creating a thin vacuum layer between the two sheets. Traditional vacuum glass sealing materials are low-melting-point frit or paste-alloy sealing materials. However, because frit sealing requires high temperatures (e.g., above 450°C), the physical properties of tempered glass cause a significant decrease in strength and impact resistance when sealed at high temperatures for extended periods, eventually annealing to the point of reverting to ordinary glass. Therefore, paste-alloy sealing materials are generally used for sealing.
[0003] Since the upper and lower glass sheets of vacuum glass are both tempered glass, they have slight warping. When sealing, pressure is applied to eliminate the gap between the upper and lower glass sheets. Since different batches of tempered glass may have different degrees of warping, the pressure parameters need to be adjusted specifically. In addition, there are too many specifications for glass thickness, and the pressure process parameters need to be adjusted frequently according to the thickness, which makes the operation complicated and the production cost increased. Moreover, when the thickness of the glass changes, there will be a lack of pressure or excessive pressure during sealing. The lack of pressure makes it impossible to press down the glass, and the flatness of the formed vacuum glass is poor, or the sealing material melts due to excessive pressure and overflows to the surrounding areas, resulting in poor quality of the vacuum glass. Utility Model Content
[0004] The utility model aims to provide a synchronous lifting device for vacuum glass packaging, so as to reduce the production cost of vacuum glass and improve product quality.
[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a synchronous lifting device for vacuum glass packaging, comprising a lifting drive mechanism and a sealing carrier structure fixed above it, the lifting drive mechanism drives the sealing carrier structure to move up and down; the lifting drive mechanism comprises a drive structure and a lifting support structure; the sealing carrier structure comprises a sealing platform and a fixed plate, the sealing platform is made of non-metallic material, and the fixed plate is made of metal material, the sealing platform is located above the fixed plate and a vertical connecting rod is provided between the two, the length of the connecting rod is not less than 10 cm; a number of avoidance holes are opened on the sealing platform to avoid the rollers used for vacuum glass transmission.
[0006] In existing technology, vacuum glass sealing is performed in a vacuum environment. The existing sealing operation involves transferring the vacuum glass to a workbench on a sealing device, where a pressure head and a heating induction coil are fixed above the workbench. The upper layer of glass contacts the pressure head to achieve pressure sealing. Because vacuum glass of varying thicknesses is located at varying distances from the heating induction coil, it is necessary to adjust equipment parameters to increase or decrease the power of the heating induction coil to melt the slurry between the two glasses and achieve vacuum glass sealing. Market demand for varying thicknesses varies, resulting in varying power parameters for different thicknesses and a multitude of data. Furthermore, in addition to temperature requirements, glass sealing also requires high pressure precision, with varying glass thicknesses corresponding to varying pressure parameters. Therefore, any change in the thickness of the processed product requires operators to adjust the power and pressure parameters of the processing equipment and perform calibration tests. This not only complicates the operation but also results in significant equipment downtime, increasing production costs. Secondly, the calibration test process after the power and pressure parameters are adjusted will rely on the operator's experience and judgment, and the degree of warping of different batches of glass with the same thickness will vary, resulting in a lack of pressure or excessive pressure in the subsequent actual processing process, resulting in poor product quality.
[0007] Therefore, in response to the problems existing in the existing vacuum glass sealing, this solution has the following beneficial effects:
[0008] 1. In actual application, the lifting device of this scheme cooperates with the pressure component of the sealing equipment to achieve pressure sealing. The pressure component includes a pressure head and a heating induction coil. The lower surface of the pressure head protrudes downward from the heating induction coil, and in the initial state of the lifting device, the distance between its sealing platform and the pressure head of the sealing equipment is constant; the vacuum glass to be sealed is placed on the sealing platform, and then according to the design thickness of the vacuum glass, the distance between the upper surface of the vacuum glass and the pressure head is obtained. This distance is the distance that the lifting drive mechanism drives the sealing carrier structure and the vacuum glass thereon to move upward. Due to the warping of the glass, the upward movement distance is greater than the actual distance between the upper surface of the glass and the pressure head. After the glass of the same thickness but different batches moves upward, its top surface will be in full contact with the pressure head, ensuring that the pressure conditions of the glass of the same thickness are consistent and the quality of the product after molding is consistent, effectively avoiding the phenomenon of pressure loss or excessive pressure in the subsequent actual processing process due to different degrees of warping of glass of the same thickness but different batches, thereby effectively reducing the product scrap rate and reducing production costs.
[0009] 2. Compared with the existing technology that requires frequent adjustment of the power parameters and pressure parameters of the sealing equipment, this solution only needs to adjust the upward movement distance according to the thickness of the vacuum glass. The overall operation is simple, and this solution effectively ensures that glass of different thicknesses can be in full contact with the pressure head, the distance between the glass and the heating induction coil is constant, and the heating power and pressure parameters are kept constant. There is no need for frequent adjustment and calibration tests, which greatly reduces the adjustment process time and downtime due to different glass thicknesses, reduces downtime losses, and reduces production costs.
[0010] 3. In this solution, the sealing carrier structure includes a sealing platform and a fixed plate. In order to avoid scratching the surface of the vacuum glass, the sealing platform is made of non-metallic materials, and in order to ensure the load-bearing performance of the fixed plate and the entire carrier structure, the fixed plate is made of metal materials. However, since the heating induction coil generates heat through the magnetic field during sealing, the surrounding metal products will consume part of the electromagnetic energy, reducing the heating efficiency of the glass. That is, the coil power needs to be increased to meet the heating energy demand of the glass, resulting in increased costs. Moreover, the surrounding metal products will change the original magnetic field distribution, which may lead to uneven distribution of the magnetic field, affecting the heating uniformity of the glass, and may cause local overheating or insufficient heating, and reduced product quality. Therefore, this solution provides a connecting rod between the sealing platform and the fixed plate, and limits the length of the connecting rod to no less than 10 cm, so as to eliminate the influence of the fixed plate on the heating induction coil, while ensuring the sealing quality of the product and reducing production costs.
[0011] Furthermore, the sealing platform is composed of several loading plates of varying sizes, each with a mounting block at its base. Both the base of the mounting block and the top of the fixing plate have fixing slots, into which the ends of the connecting rods fit. This modular design of the sealing platform simplifies processing and installation, eliminating the need for specialized large-scale production equipment or auxiliary installation equipment, and reducing manufacturing costs.
[0012] Furthermore, the sealing platform has a mounting groove at the bottom to accommodate the conveyor roller's shaft. The groove consists of a rectangular bottom groove and an arc-shaped upper groove. This design ensures a more stable connection between the mounting groove and the conveyor roller. During horizontal conveyance of vacuum glass, the sealing platform will not deviate due to shallow contact with the roller, thus ensuring the stability and reliability of the lifting mechanism.
[0013] Furthermore, the sealing platform is divided into a central area and side areas on both sides of the central area along its width direction. The central area and the long sides of the carrier plates therein are parallel to each other, and the side areas and the long sides of the carrier plates therein are perpendicular to each other. The mounting grooves on the carrier plates in the central area and the side areas are aligned and connected to each other; a spacer is provided between adjacent carrier plates in the side area, a rectangular through groove vertically overlapping with the spacer is provided on the fixing plate, and a limiting component is provided in the spacer and the rectangular through groove.
[0014] This arrangement minimizes the size of a single carrier plate. Larger carrier plates would require specialized, large-scale equipment, significantly increasing the difficulty and cost of processing. Furthermore, the flexible assembly method avoids the need for complete replacement and repair, making future maintenance much simpler. Furthermore, the spacing and rectangular slot design facilitate the coordination of the lifting mechanism with other components of the sealing equipment, preventing motion interference.
[0015] Furthermore, the driving structure is a driving motor, a lower frame is provided above the driving motor, the lifting support structure includes a lifting screw and an auxiliary lifting rod, a connecting transmission structure is provided between the lifting screw and the driving motor, the connecting transmission structure includes a reducer, a coupling and a transmission rod, the rod portion of the lifting screw passes through the lower frame and is rotatably connected to it, and the screw nut is located at the bottom of the lower frame and fixedly connected; the bottom of the auxiliary lifting rod is fixed on the lower frame, the top is connected to the fixed plate, and it includes a sleeve and a support rod located in the sleeve, the upper end of the sleeve is provided with a vacuum cavity and the interior of the sleeve is connected to the vacuum cavity, the upper part of the support rod extends into the vacuum cavity, and the upper and lower ends of the sleeve are provided with sealing structures.
[0016] Furthermore, there are four lifting screws, which are evenly arranged at the four corners of the lower frame. There are eight auxiliary lifting rods, which are divided into three groups, which are respectively arranged in the central area and the side areas, and there are three auxiliary lifting rods in the two side areas.
[0017] The above setting drives the four lifting screws to rotate synchronously through the drive motor. The lifting screw drives the sealing load structure and the vacuum glass to move upward through the lower frame and the auxiliary lifting rod. The overall structure is simple, the operation is simple, the reliability is high, and it will not excessively increase the overall volume of the sealing equipment, which is convenient for promotion and application.
[0018] Furthermore, the thickness of the sealing platform is not less than 20 mm. If the thickness of the sealing platform is too small, the depth of the bottom mounting groove will be too shallow, and the fit with the roller of the transmission roller will be too shallow, causing the sealing platform to deviate during the horizontal transportation of the vacuum glass, affecting subsequent processing.
[0019] Furthermore, the sealing platform is made of Peek material, which has strong high temperature resistance and does not cause wear on the surface of the vacuum glass, thereby ensuring product quality and reducing the defective rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a front view of an embodiment of the present utility model.
[0021] Figure 2 It is the front view of the embodiment of the present utility model.
[0022] Figure 3 It is a top view of an embodiment of the present utility model.
[0023] Figure 4 It is a bottom view of an embodiment of the present utility model.
[0024] Figure 5 Schematic diagram of the coordination between the lifting device and the transmission roller.
[0025] Figure 6 It is a schematic diagram of the coordination between the lifting device and the limit assembly. DETAILED DESCRIPTION
[0026] The following is further described in detail through specific implementation methods:
[0027] The figure marks in the drawings of the specification include: lifting drive mechanism 1, drive motor 11, reducer 12, transmission rod 13, lifting screw 14, auxiliary lifting rod 15, sleeve 151, support rod 152, sealing load structure 2, fixing plate 21, sealing platform 22, load plate 221, avoidance hole 222, mounting groove 223, mounting block 23, connecting rod 24, center area 25, side area 26, lower frame 3, vacuum chamber 4, transmission roller 5, limit assembly 6.
[0028] The embodiment is basically as shown in the attached Figures 1-6 As shown:
[0029] A synchronous lifting device for vacuum glass packaging is located below a heating assembly (not shown in the figure). The heating assembly includes a pressure head and a heating induction coil. The heating induction coil is located in the middle of the pressure head, and the bottom surface of the pressure head protrudes downward from the heating induction coil. Figure 1 As shown, the synchronous lifting device includes a lifting drive mechanism 1 and a sealing load-bearing structure 2 fixed above the lifting drive mechanism 1, and the lifting drive mechanism 1 drives the sealing load-bearing structure 2 to move up and down.
[0030] Combine Figure 1 、 Figure 2 As shown, the sealing carrier structure 2 includes a sealing platform 22 and a fixed plate 21. The sealing platform 22 is made of non-metallic materials, such as Peek material, to prevent scratching of the vacuum glass surface and reduce the impact of the magnetic field on the heating induction coil. The fixed plate 21 is made of metal materials, such as aluminum, to ensure the overall load-bearing performance of the sealing carrier structure 2. The sealing platform 22 is located above the fixed plate 21, and a vertical connecting rod 24 is provided between the two. The length of the connecting rod 24 is not less than 10 cm to eliminate the consumption of electromagnetic energy and the impact on the magnetic field distribution by the surrounding metal products, to ensure the heating efficiency and heating uniformity of the heating induction coil on the lowered glass, and to reduce production costs while ensuring the sealing quality of the product. Preferably, the connecting rod 24 is made of non-metallic materials, such as ceramic materials, to reduce the impact on the magnetic field.
[0031] Combine Figure 2 、 Figure 3 、 Figure 5 As shown, a transmission roller 5 for horizontally conveying vacuum glass is installed between the sealing platform 22 and the fixed plate 21. The transmission roller 5 has a fixed height and is externally connected to a rotating motor. The sealing platform 22 is provided with a number of avoidance holes 222 that avoid the transmission roller 5 to prevent the two from interfering with each other when the sealing platform 22 is raised or lowered. The bottom of the sealing platform 22 is provided with a mounting groove 223 for accommodating the roller shaft of the transmission roller 5. The mounting groove 223 consists of a rectangular groove at the bottom and an arc-shaped groove at the top. The thickness of the sealing platform 22 is not less than 20mm to prevent the mounting groove 223 from being too shallow, resulting in an excessively shallow fit between the sealing platform 22 and the roller shaft of the transmission roller 5. This would cause the sealing platform 22 to deviate during the horizontal conveyance of the vacuum glass and affect subsequent processing.
[0032] Combine Figure 3 As shown, the sealing platform 22 is composed of several carrier plates 221 of different sizes. A mounting block 23 is provided at the bottom of the carrier plate 221. The bottom of the mounting block 23 and the top of the fixed plate 21 are both provided with fixing grooves. The two ends of the connecting rod 24 are inserted into the fixing grooves to realize the assembly and fixation of the sealing platform 22 and the fixed plate 21. The sealing platform 22 is divided along its width into a central region 25 and side regions 26 located on either side of the central region 25. The long sides of the carrier plates 221 within the central region 25 are parallel to each other, while the long sides of the carrier plates 221 within the side regions 26 are perpendicular to each other. The mounting slots 223 on the carrier plates 221 within the central region 25 and the side regions 26 are aligned and connected to each other. A spacer is provided between adjacent carrier plates 221 within the side regions 26. The fixed plate 21 has a rectangular through-slot that vertically overlaps the spacer. A stopper assembly 6 is provided within the spacer and the rectangular through-slot. The stopper assembly 6 comprises a stopper plate and a cylinder. The cylinder drives the stopper plate up and down to position the vacuum glass. The fixed plate 21 also has multiple rectangular through-holes to reduce the weight of the fixed plate 21 and the sealing platform as a whole, reducing drive losses and saving energy.
[0033] Combine Figure 2 、 Figure 4 、 Figure 6As shown, the lifting drive mechanism 1 includes a driving structure and a lifting support structure. The driving structure is a driving motor 11. A lower frame 3 is provided above the driving motor 11. The lifting support structure includes a lifting screw 14 and an auxiliary lifting rod 15. A connecting transmission structure is provided between the lifting screw and the driving motor 11. The connecting transmission structure includes a reducer 12, a coupling and a transmission rod 13. The rod portion of the lifting screw 14 passes through the lower frame 3 and is rotatably connected to it, and the screw nut is located at the bottom of the lower frame 3 and is bolted and fixed; the bottom of the auxiliary lifting rod 15 is fixed on the lower frame 3, and the top is connected to the fixed plate 21. The auxiliary lifting rod 15 includes a sleeve 151 and a support rod 152 located in the sleeve 151. The upper end of the sleeve 151 is provided with a vacuum chamber 4. The range of the vacuum chamber 4 is shown by the dotted line. The sealing load structure 2 is located in the vacuum chamber 4 as a whole. The interior of the sleeve 151 is connected to the vacuum chamber 4. The upper part of the support rod 152 extends into the vacuum chamber 4. The upper and lower ends of the sleeve 151 are provided with sealing structures, which are sealing rings. There are four lifting screws 14, which are evenly arranged at the four corners of the lower frame 3. There are eight auxiliary lifting rods 15, which are divided into three groups. The three groups are arranged in the central area 25 and the side areas 26 respectively. There are three auxiliary lifting rods 15 in the side areas 26 on both sides to ensure stable support and reliable lifting of the sealing load structure 2.
[0034] During specific operation, first, the distance between the upper surface of the vacuum glass and the pressure head is obtained according to the thickness of the vacuum glass. This distance is the distance that the lifting drive mechanism 1 drives the sealing carrier structure 2 and the vacuum glass thereon to move upward. Then, the driving motor 11 synchronously drives the four lifting screws 14 to rotate, and the lifting screw drives the sealing carrier structure 2 and the vacuum glass upward through the lower frame 3 and the auxiliary lifting rod 15, so that the vacuum glass contacts the pressure head, and then pressure sealing is performed; after sealing is completed, the driving motor 11 reverses to drive the sealing carrier structure 2 and the vacuum glass to reset. The vacuum glass is supported by the transmission roller 5 and transported horizontally to the next process.
[0035] The above description is merely an embodiment of the present invention, and the commonly known specific technical solutions and / or features of the solution are not described in detail here. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be considered as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed in this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. A synchronous lifting device for vacuum glass packaging, characterized in that: It includes a lifting drive mechanism and a sealing carrier structure fixed above it, and the lifting drive mechanism drives the sealing carrier structure to move up and down; the lifting drive mechanism includes a drive structure and a lifting support structure; the sealing carrier structure includes a sealing platform and a fixed plate, the sealing platform is made of non-metallic material, and the fixed plate is made of metal material, the sealing platform is located above the fixed plate and a vertical connecting rod is provided between the two, and the length of the connecting rod is not less than 10 cm; a number of avoidance holes are opened on the sealing platform to avoid the rollers used for vacuum glass transmission.
2. The synchronous lifting device for vacuum glass packaging according to claim 1, characterized in that: The sealing platform is composed of several carrier plates of different sizes. A mounting block is provided at the bottom of the carrier plate. The bottom of the mounting block and the top of the fixing plate are both provided with fixing grooves, and both ends of the connecting rod are inserted into the fixing grooves.
3. The synchronous lifting device for vacuum glass packaging according to claim 2, characterized in that: The bottom of the sealing platform is provided with a mounting groove for accommodating the roller shaft of the transmission roller, and the mounting groove consists of a rectangular groove at the bottom and an arc groove at the top.
4. The synchronous lifting device for vacuum glass packaging according to claim 3, characterized in that: The sealing platform is divided into a central area and side areas on both sides of the central area along its width direction. The long sides of the carrier plates in the central area and the side areas are parallel to each other, and the long sides of the carrier plates in the side areas are perpendicular to each other. The mounting grooves on the carrier plates in the central area and the side areas are aligned and connected to each other; a spacer is provided between adjacent carrier plates in the side areas, and a rectangular through groove vertically overlapping with the spacer is provided on the fixing plate, and a limiting component is provided in the spacer and the rectangular through groove.
5. The synchronous lifting device for vacuum glass packaging according to claim 1, characterized in that: The driving structure is a driving motor, and a lower frame is provided above the driving motor. The lifting support structure includes a lifting screw and an auxiliary lifting rod. A connecting transmission structure is provided between the lifting screw and the driving motor. The connecting transmission structure includes a reducer, a coupling and a transmission rod. The rod portion of the lifting screw passes through the lower frame and is rotatably connected to it, and the screw nut is located at the bottom of the lower frame and fixedly connected; the bottom of the auxiliary lifting rod is fixed on the lower frame, and the top is connected to the fixed plate, and includes a sleeve and a support rod located in the sleeve. The upper end of the sleeve is provided with a vacuum cavity and the interior of the sleeve is connected to the vacuum cavity. The upper part of the support rod extends into the vacuum cavity, and a sealing structure is provided at the upper and lower ends of the sleeve.
6. The synchronous lifting device for vacuum glass packaging according to claim 5, characterized in that: There are four lifting screws, which are evenly arranged at the four corners of the lower frame. There are eight auxiliary lifting rods, which are divided into three groups. The three groups are arranged in the center area and the side areas respectively, and there are three auxiliary lifting rods in the two side areas.
7. The synchronous lifting device for vacuum glass packaging according to claim 4, characterized in that: The thickness of the sealing platform is not less than 20 mm.
8. The synchronous lifting device for vacuum glass packaging according to claim 7, characterized in that: The sealing platform is made of Peek material.