Sealing device for hollow glass production
By using multiple conveyor belts and PLC-controlled glue application, assembly, and sealing mechanisms, the problem of uneven glue application in insulated glass production has been solved, achieving precise vertical sealing of the glass and improving the sealing effect of insulated glass.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-03-06
AI Technical Summary
In existing insulated glass production equipment, the glass is prone to displacement during the adhesive application process, resulting in uneven adhesive application, affecting the sealing effect, and requiring rework and cleaning, which increases the workload.
Design a sealing device for insulating glass production, which employs multiple conveyor belts and multiple mechanisms working in concert, and uses a PLC controller to precisely control the glass position to achieve vertical sealing. The device includes glue application, glass assembly, and sealing mechanisms to ensure uniform glue application and sealing effect.
It enables precise application and sealing of adhesive to the glass during vertical movement, improving the sealing effect of insulated glass and reducing uneven adhesive application and rework.
Smart Images

Figure CN223970276U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of glass production technology, and more specifically to a sealing device for the production of insulating glass. Background Technology
[0002] Insulating glass units are sealed around the perimeter with a high-strength, airtight composite adhesive, bonding two or more panes of glass to the sealing strips and glass panes. Dry gas is filled in the space between the panes, and a desiccant is placed inside the frame to ensure the dryness of the air between the glass panes. The sealing performance of insulating glass units affects their usability.
[0003] Chinese invention patent CN202111261721.4 discloses a sealing device for insulated glass. The glass to be sealed is placed on a rotating platform on a workbench, and the edges of the glass are sealed by spraying glue. In this sealing method, the glass is placed horizontally, and the surface of the glass is relatively smooth. It is easy to shift during rotation, which can easily lead to one spraying head penetrating too deeply and applying too much glue, while the other spraying head penetrating too shallowly and applying too little glue. After the glue is applied, the side with excessive glue needs to be cleaned, which increases the workload and affects the sealing effect of the insulated glass, often resulting in rework. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a sealing device for the production of insulating glass, which can vertically seal the insulating glass, accurately control the position of the glass during the glue application process, and improve the glue application effect and the sealing effect of the insulating glass.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.
[0006] A sealing device for producing insulating glass includes a worktable with three sets of conveyor belts arranged horizontally from left to right for transporting glass. Vertical baffles for supporting the glass are vertically installed on the worktable inside each set of conveyor belts. A glue-applying mechanism for applying adhesive to the inner edge of the glass is located between the first and second sets of conveyor belts. A assembling mechanism for joining the glued glass is located on the side of the second set of conveyor belts opposite to the glue-applying mechanism. A sealing mechanism for sealing the joined glass is located between the second and third sets of conveyor belts. An adhesive container connected to the glue-applying mechanism and a sealing container connected to the sealing mechanism are respectively installed on the worktable. A control box for controlling the sealing operation of the glass is installed on the worktable. The control box has control buttons and a PLC controller. The outputs of the control buttons are connected to the inputs of the PLC controller, and the outputs of the PLC controller are connected to the inputs of the glue-applying mechanism, the assembling mechanism, and the sealing mechanism.
[0007] To further optimize the technical solution, the first group of conveyor belts is a first conveyor belt that moves back and forth, the second group of conveyor belts is a second conveyor belt and a third conveyor belt that are arranged side by side, and the third group of conveyor belts is a fourth conveyor belt that corresponds to the position of the second conveyor belt.
[0008] To further optimize the technical solution, a transmission belt pushing cylinder is provided on the workbench on the side opposite to the vertical baffle of the first conveyor belt for pushing the first conveyor belt to move back and forth. The input end of the transmission belt pushing cylinder is connected to the output end of the PLC controller.
[0009] To further optimize the technical solution, the glue application mechanism includes a glue application bracket vertically mounted on the worktable. A guide groove is provided on the side of the glue application bracket facing the conveyor belt, and a glue application lifting platform is installed within the guide groove. A glue application lifting cylinder is installed at the top of the glue application bracket to drive the glue application lifting platform up and down. A glue application nozzle for applying glue to the inner edge of the glass is installed at the end of the glue application lifting platform via a glue application nozzle bracket. A glue application pushing cylinder is installed at the side end of the worktable to drive the glue application bracket back and forth. The glue application nozzle is connected to a glue tank via a glue tube, and a glue pump is installed on the glue tube to deliver the glue from the glue tank into the glue application nozzle. The input ends of the glue pump, the glue application pushing cylinder, and the glue application lifting cylinder are respectively connected to the output ends of a PLC controller.
[0010] To further optimize the technical solution, the assembly mechanism includes an assembly bracket vertically mounted on the workbench, an assembly cylinder on the inner side of the assembly bracket, and an assembly push plate at the end of the telescopic rod of the assembly cylinder for pushing the glass on the third conveyor belt onto the second conveyor belt for assembly. The input end of the assembly cylinder is connected to the output end of the PL controller.
[0011] To further optimize the technical solution, the sealing mechanism includes a sealing bracket vertically mounted on the worktable. A guide groove is provided on the side of the sealing bracket facing the conveyor belt, and a sealing lifting platform is installed within the guide groove. A sealing lifting cylinder is installed at the top of the sealing bracket to drive the sealing lifting platform up and down. A rotating block is installed at the end of the sealing lifting platform, and a sealing rotary motor is installed inside the sealing lifting platform to drive the rotating block to rotate. A sealing head is installed at the end of the rotating block via a connecting rod to seal the edge of the assembled glass. A sealing push cylinder is installed on the side of the worktable to drive the sealing bracket back and forth. The sealing head is connected to a sealing glue tank via a sealing glue tube, and a sealing glue pump is installed on the sealing glue tube to deliver the sealing glue from the sealing glue tank into the sealing head. The input ends of the sealing glue pump, the sealing push cylinder, and the sealing lifting cylinder are respectively connected to the output ends of a PLC controller.
[0012] To further optimize the technical solution, pressure blocks for pressing the glass edge are respectively set on the left and right sides of the sealing head. A suction nozzle parallel to the sealing head is also set between the two pressure blocks for extracting air from the middle of the laminated glass. A suction nozzle cylinder for driving the suction nozzle to move up and down is set on the connecting rod. The input end of the suction nozzle cylinder is connected to the output end of the PLC controller.
[0013] To further optimize the technical solution, the front end of the rotating block is also equipped with a guide block via a connecting rod for guiding the position of the sealing head.
[0014] To further optimize the technical solution, the inner side of the vertical baffle is evenly distributed with several support rollers for supporting the glass.
[0015] Due to the adoption of the above technical solutions, the technological progress achieved by this utility model is as follows.
[0016] This utility model provides a sealing device for the production of insulating glass. During the vertical movement of the glass, the glass is glued and joined together. After the glass is joined together, the edges of the glass are sealed with glue through a sealing head. The position of the glass can be precisely controlled during the glue application and sealing process, thereby ensuring the uniformity of glue application and improving the sealing effect of the insulating glass. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the glue dispensing mechanism of this utility model;
[0019] Figure 3 This is a schematic diagram of the sealing mechanism of this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the pressure block and sealing head of this utility model;
[0021] Figure 5 This is a schematic diagram of the structure of the vertical baffle of this utility model.
[0022] The components include: 1. Workbench; 21. First conveyor belt; 211. Conveyor belt push cylinder; 22. Second conveyor belt; 23. Third conveyor belt; 24. Fourth conveyor belt; 3. Vertical baffle; 31. Support roller; 4. Glue application mechanism; 41. Glue application bracket; 42. Glue application lifting platform; 43. Glue application lifting cylinder; 44. Glue application nozzle bracket; 45. Glue application nozzle; 46. Glue application push cylinder; 5. Sealing mechanism; 51. Sealing bracket; 52. Sealing lifting platform; 5 3. Sealed lifting cylinder; 54. Sealed rotary motor; 55. Rotating block; 56. Connecting rod; 57. Guide block; 58. Pressing block; 59. Sealing glue head; 510. Suction nozzle; 511. Suction nozzle cylinder; 512. Sealed pushing cylinder; 6. Adhesive box; 61. Adhesive pump; 62. Adhesive hose; 7. Sealing glue box; 71. Sealing pump; 72. Sealing hose; 81. Piece assembly cylinder; 82. Piece assembly push plate; 83. Piece assembly bracket; 9. Control box. Detailed Implementation
[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0024] A sealing device for insulating glass production, combined with Figures 1 to 5 As shown, the system includes a workbench 1 with three sets of conveyor belts arranged horizontally from left to right. A glue-applying mechanism 4 is located between the first and second conveyor belts to apply glue to the inner edges of the glass. A glass-joining mechanism is located on the opposite side of the second conveyor belt from the glue-applying mechanism to join the glued glass pieces together. A sealing mechanism 5 is located between the second and third conveyor belts to seal the joined glass pieces. A control box 9 is located on the workbench 1 to control the sealing operation. The control box has control buttons and contains a PLC controller. The outputs of the control buttons are connected to the inputs of the PLC controller, and the outputs of the PLC controller are connected to the inputs of the glue-applying mechanism, the glass-joining mechanism, and the sealing mechanism, respectively.
[0025] Each set of conveyor belts has a vertical baffle 3 installed on the inner side of the worktable 1 to support the glass. A support roller 31 is installed on one side of the conveyor belt on the vertical baffle 3 to support the glass. The support roller can move with the glass when it moves.
[0026] The first group of conveyor belts is a first conveyor belt 21 that moves back and forth, the second group of conveyor belts is a second conveyor belt 22 and a third conveyor belt 23 that are arranged side by side, and the third group of conveyor belts is a fourth conveyor belt 24 that corresponds to the position of the second conveyor belt 22.
[0027] A transmission belt push cylinder 211 is installed on the workbench 1 on the opposite side of the vertical baffle 3 of the first conveyor belt 21. This cylinder is used to push the first conveyor belt to move back and forth. The input end of the transmission belt push cylinder is connected to the output end of the PLC controller. When processing glass, the glass is conveyed by the first conveyor belt. When conveying the first piece of glass, the transmission belt push cylinder pushes the first conveyor belt 21 and the second conveyor belt 22 to convey it. During the conveying process to the second conveyor belt, the inner edge of the first piece of glass is glued by a glue-applying mechanism.
[0028] The workbench 1 is equipped with an adhesive box 6, which is connected to the adhesive dispensing mechanism and is used to hold adhesive.
[0029] The glue application mechanism 4 includes a glue application bracket 41 vertically mounted on the worktable 1. A guide groove is provided on the side of the glue application bracket 41 facing the conveyor belt, and a glue application lifting platform 42 is installed within the guide groove. A glue application lifting cylinder 43 is installed at the top of the glue application bracket 41, and a glue application nozzle 45 is installed at the end of the glue application lifting platform 42 via a glue application nozzle bracket 44 for applying glue to the inner edge of the glass. A glue application pushing cylinder 46 is installed on the side of the worktable 1. The telescopic rod of the glue application pushing cylinder is connected to the back of the glue application bracket 41 to drive the glue application bracket 41 to move back and forth, thereby realizing the back and forth movement of the glue application nozzle.
[0030] The glue nozzle 45 is connected to the glue tank 6 via the glue tube 62. The glue tube is equipped with a glue pump 61, which is used to deliver the glue in the glue tank to the glue nozzle. The input terminals of the glue pump, the glue pushing cylinder, and the glue lifting cylinder are respectively connected to the output terminals of the PLC controller.
[0031] When applying sealant to the first piece of glass, as it is conveyed forward by the first conveyor belt, the sealant-applying cylinder and the lifting cylinder work simultaneously to move the sealant applicator to the edge of the glass. During the forward movement of the glass, sealant is applied to one horizontal side. After the horizontal side is finished, the lifting cylinder moves the sealant applicator up and down to apply sealant to the adjacent vertical side of the glass. When the sealant reaches the end, the first and second conveyor belts move backward to apply sealant to the other horizontal side of the glass. After the horizontal sealant is finished, the sealant is applied to the other adjacent vertical side, thus achieving overlap of the sealant application. After the sealant application is completed, the glass is temporarily stored on the second conveyor belt 22. At this time, the conveyor belt-propelling cylinder drives the first conveyor belt 21 to a position opposite to the third conveyor belt 23, conveying the glass to the third conveyor belt. When the glass is conveyed to the third conveyor belt 23, the glass on the third conveyor belt is pushed onto the second conveyor belt by the joining mechanism for joining.
[0032] The glass assembly mechanism includes an assembly support 83 vertically mounted on the worktable 1. An assembly cylinder 81 is located inside the assembly support 83, and an assembly push plate 82 is located at the end of the cylinder's telescopic rod. This push plate is used to push the glass from the third conveyor belt 23 onto the second conveyor belt 22 for assembly. The input end of the assembly cylinder is connected to the output end of a PLC controller. After the glass is assembled, it is conveyed forward via the second conveyor belt 22 to the fourth conveyor belt. During this conveying process, a sealing mechanism seals the edges of the assembled glass.
[0033] A sealant box 7 is provided on the workbench 1. The sealant box 7 is connected to the sealing mechanism and is used to hold sealant.
[0034] The sealing mechanism 5 includes a sealing bracket 51 vertically mounted on the workbench 1. The sealing bracket 51 has a guide groove on the side facing the conveyor belt. A sealing lifting platform 52 is installed in the guide groove. A sealing lifting cylinder 53 is installed at the top of the sealing bracket 51 to drive the sealing lifting platform to move up and down. A rotating block 55 is installed at the end of the sealing lifting platform 52. A sealing rotary motor 54 is installed inside the sealing lifting platform 52 to drive the rotating block to rotate. Two connecting rods 56 are installed at the end of the rotating block 55. A sealing glue head 59 is installed on one connecting rod to seal the edge of the laminated glass. A guide block 57 is installed on the other connecting rod 56. The guide block 57 is located at the front end of the moving direction of the sealing glue head 59 to guide the glue application position of the sealing glue head.
[0035] Pressure blocks 58 are provided on both sides of the sealing head 59 to press the glass edge. A groove is formed between the two pressure blocks 58, and the sealing head 59 is placed in the groove. The height of the sealing head is higher than the height of the pressure blocks. During sealing, the sealing head can extend between the two glass pieces to apply sealant, forming a better sealing effect. A suction nozzle 510 is also provided between the two pressure blocks 58. The suction nozzle is parallel to the sealing head and is connected to an air pump to remove air between the two glass pieces. At the same time, the suction nozzle can also be connected to the air pump and the air filling pump through a T-connector to fill the glass with a specific gas after the air is removed to maintain the stability of the insulating glass performance. A suction nozzle cylinder 511 is provided on the connecting rod 56 to drive the suction nozzle to move up and down. The input end of the suction nozzle cylinder is connected to the output end of the PLC controller.
[0036] A sealing push cylinder 512 is provided on the side of the workbench 1. The end of the telescopic rod of the sealing push cylinder is connected to the sealing bracket 51 to drive the sealing bracket 51 to move back and forth.
[0037] The sealing head 59 is connected to the sealing tube 7 via the sealing tube 72. The sealing tube is equipped with a sealing pump 71, which is used to deliver the sealing adhesive from the sealing tube into the sealing head. The input terminals of the sealing pump, the sealing push cylinder, and the sealing lift cylinder are respectively connected to the output terminals of the PLC controller.
[0038] When the second conveyor belt 22 conveys the laminated glass to the sealing mechanism, the sealing push cylinder and the sealing lift cylinder work simultaneously to move the sealing head to the lateral side of the glass. The sealing rotary motor drives the turntable to rotate, so that the sealing head faces the edge of the glass. At the same time, the guide block is located at the front end of the sealing head's running direction. As the glass moves to the fourth conveyor belt, the lateral side of the glass is sealed with sealant. After the lateral side is sealed, the sealing rotary motor drives the turntable to rotate 90°, so that the guide block and the sealing head face the already sealed longitudinal side. The sealing lift cylinder drives the sealing head to move up and down to achieve sealing on the longitudinal side. During the sealing process, while applying sealant to another adjacent transverse side, the sealing rotary motor drives the rotating block to rotate 90°. The second and fourth conveyor belts drive the glass back for sealing. After sealing this side, the sealing rotary motor drives the rotating block to rotate 90° again. The sealing lifting cylinder drives the sealant head to move up and down to seal the last longitudinal side. After all sides are sealed, the suction nozzle cylinder drives the suction nozzle to move forward and insert it into the sealant to extract air. After extraction, the suction nozzle is pulled out. Since the sealant has not yet solidified, it will block the suction nozzle's exit hole as it is pulled out, thus sealing the laminated glass.
[0039] In the production of insulated glass, this invention involves conveying glass from a first conveyor belt to a second conveyor belt. During this conveying process, a glue-applying mechanism applies glue to the edges of the glass. After glue application, the glass is temporarily stored on the second conveyor belt. At this time, the position of the first conveyor belt is adjusted so that it aligns with the third conveyor belt. After the second piece of glass is conveyed from the first conveyor belt to the third conveyor belt, a joining mechanism pushes the glass from the third conveyor belt onto the second conveyor belt for joining. After joining, the glass is conveyed from the second conveyor belt to a fourth conveyor belt. During this conveying process, a sealing mechanism seals the edges of the joined glass. After sealing, air is extracted from the sealed glass, thus improving the sealing performance of the insulated glass.
Claims
1. A sealing apparatus for the production of insulating glass, characterized in that: The application relates to a glass sealing device, which comprises a workbench (1), three groups of conveying belts for conveying glass are horizontally arranged on the workbench (1) from left to right, vertical vertical stop plates (3) for supporting glass are arranged on the inner sides of each group of conveying belts, a glue coating mechanism (4) for coating glue on the inner edges of the glass is arranged between the first group of conveying belts and the second group of conveying belts, a splicing mechanism for splicing the glass after coating glue is arranged on the side, opposite to the glue coating mechanism, of the second group of conveying belts, a sealing mechanism (5) for sealing the glass after splicing is arranged between the second group of conveying belts and the third group of conveying belts; glue tanks (6) for containing adhesive glue and sealing glue tanks (7) for containing sealing glue are arranged on the workbench (1) and connected with the glue coating mechanism and the sealing mechanism respectively; a control box (9) for controlling the sealing operation of the glass is arranged on the workbench (1), control buttons are arranged on the control box, a PLC controller is arranged in the control box, the output end of the control buttons is connected with the input end of the PLC controller, and the output end of the PLC controller is connected with the input end of the glue coating mechanism, the splicing mechanism and the sealing mechanism respectively.
2. The sealing device for producing hollow glass according to claim 1, characterized in that: The first group of conveying belts is first conveying belts (21) arranged in front and back, the second group of conveying belts is second conveying belts (22) and third conveying belts (23) arranged side by side, and the third group of conveying belts is fourth conveying belts (24) corresponding to the second conveying belts (22) in position.
3. The sealing device for producing hollow glass according to claim 2, characterized in that: A conveying belt pushing cylinder (211) for pushing the first conveying belts to move in front and back is arranged on the workbench opposite to the vertical stop plates (3), and the input end of the conveying belt pushing cylinder is connected with the output end of the PLC controller.
4. The sealing device for producing hollow glass according to claim 1, characterized in that: The glue coating mechanism (4) comprises a glue coating support (41) vertically arranged on the workbench (1), a guide groove is formed in the side of the glue coating support (41) facing the conveying belts, a glue coating lifting platform (42) is arranged in the guide groove, a glue coating lifting cylinder (43) for driving the glue coating lifting platform to move up and down is arranged at the top end of the glue coating support (41), a glue coating nozzle (45) for coating glue on the inner edges of the glass is arranged on the end of the glue coating lifting platform (42) through a glue coating nozzle support (44), a glue pushing cylinder (46) for driving the glue coating support (41) to move in front and back is arranged at the side end of the workbench (1), the glue coating nozzle (45) is connected with the glue tank (6) through a glue pipe (62), a glue pump (61) for sending the adhesive glue in the glue tank into the glue coating nozzle is arranged on the glue pipe, and the input ends of the glue pump, the glue pushing cylinder and the glue coating lifting cylinder are connected with the output end of the PLC controller.
5. The sealing device for producing hollow glass according to claim 2, characterized in that: The splicing mechanism comprises a splicing support (83) vertically arranged on the workbench (1), a splicing cylinder (81) is arranged on the inner side of the splicing support (83), a splicing pushing plate (82) for pushing the glass on the third conveying belts (23) to the second conveying belts (22) to splice is arranged on the end of the splicing cylinder, and the input end of the splicing cylinder is connected with the output end of the PLC controller.
6. The sealing device for producing hollow glass according to claim 1, characterized in that: The sealing mechanism (5) comprises a sealing support (51) vertically arranged on the workbench (1), a guide groove is formed on the side of the sealing support (51) facing the conveying belt, a sealing lifting platform (52) is arranged in the guide groove, a sealing lifting cylinder (53) for driving the sealing lifting platform to move up and down is arranged at the top end of the sealing support, an end of the sealing lifting platform (52) is provided with a rotating block (55), the inside of the sealing lifting platform (52) is provided with a sealing rotary motor (54) for driving the rotating block to rotate, an end of the rotating block (55) is provided with a sealing glue head (59) for sealing the edge of the glass after lamination through a connecting rod (56); a sealing pushing cylinder (512) for driving the sealing support (51) to move forward and backward is arranged at the side end of the workbench (1); the sealing glue head (59) is connected to a sealing glue tank (7) through a sealing glue pipe (72), a sealing glue pump (71) for sending the sealing glue in the sealing glue tank into the sealing glue head is arranged on the sealing glue pipe, the input ends of the sealing glue pump, the sealing pushing cylinder and the sealing lifting cylinder are respectively connected to the output ends of the PLC controller.
7. The sealing device for producing hollow glass according to claim 6, characterized in that: A pressing block (58) for pressing the edge of the glass is arranged on the left and right sides of the sealing glue head (59) respectively, a suction nozzle (510) parallel to the sealing glue head for extracting the air in the middle of the laminated glass is further arranged between the two pressing blocks (58), a suction nozzle cylinder (511) for driving the suction nozzle to move up and down is arranged on the connecting rod (56), and the input end of the suction nozzle cylinder is connected to the output end of the PLC controller.
8. The sealing device for producing hollow glass according to claim 6, characterized in that: The front end of the rotating block (55) is further provided with a guide block (57) for guiding the glue applying position of the sealing glue head (59) through the connecting rod (56).
9. The sealing device for producing hollow glass according to claim 1, characterized in that: The inner side of the vertical baffle (3) is uniformly provided with a plurality of support rollers (31) for supporting the glass.
Citation Information
Patent Citations
Sealing device for hollow glass
CN113968680A