Bending method and air distribution system for filled spacer of insulating glass

Abstract

The application discloses a bending method and air distribution system of a filled spacer for hollow glass, and relates to the technical field of hollow glass manufacturing. A plurality of through holes are formed in the filled spacer, and the spacer is filled with a drying agent. The bending method of the filled spacer for hollow glass comprises the following steps: placing the spacer in a horizontal direction; blowing gas into the through holes at the bending position of the spacer to reduce the drying agent at the bending position of the spacer and move the drying agent to both sides, and part of the through holes are located on both sides of the bending position; and after the drying agent at the bending position of the spacer is reduced and moved to both sides by blowing gas into the through holes at the bending position of the spacer, bending operation is performed on the bending position of the spacer. The application can solve the problem that the drying agent filled in the filled spacer hinders the bending of the spacer, and can improve the processing quality of the filled spacer and improve the processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of insulating glass manufacturing technology, and in particular to a bending method and gas distribution system for a filling spacer used in insulating glass. Background Technology

[0002] Before use, sealed spacers are sealed at both ends and filled with granular desiccant. To ensure the dryness of the insulated glass, the amount of desiccant inside the sealed spacer is relatively high, ranging from 50% to 90% of the internal voids. However, the presence of desiccant hinders bending of the spacer. Current processes use vibration, but this requires excessive vibration time, affecting bending efficiency during production. Direct bending can lead to cracking, tearing, irregularities, or excessive wrinkles at the bending point.

[0003] In vibration-based processes, the spacer bar is vibrated at the bend to displace the desiccant. However, this method is prone to excessive vibration time, leading to large bending angle deviations, corner breakage, and bulging, thus affecting the subsequent processing quality of the insulated glass and resulting in low processing efficiency. Furthermore, defects in the bending process can cause the first coat of butyl sealant to leak due to defects on the spacer bar surface, leading to complete failure of the molecular sieve within the spacer bar and posing a significant quality problem.

[0004] The aforementioned conditions severely impact the performance of the spacer after it is installed inside the insulating glass unit, significantly reducing its overall performance and affecting product quality. Based on current production needs, there is an urgent requirement for a new bending method for sealed spacers to improve their processing quality and increase processing efficiency. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a bending method and gas distribution system for a sealed spacer for insulating glass, which can solve the problem that the desiccant filled inside the sealed spacer will hinder the bending of the spacer, and can improve the processing quality and increase the processing efficiency of the sealed spacer.

[0006] The specific technical solution of this invention is as follows:

[0007] A bending method for a sealing spacer for insulating glass, wherein the sealing spacer has multiple through holes and is filled with a desiccant;

[0008] The bending method for the sealing spacer strip used in insulating glass includes:

[0009] Place the spacer bar horizontally;

[0010] Gas is blown into the through hole at the bending point of the spacer strip to reduce the amount of desiccant at the bending point and move it to both sides, with some of the through holes located on both sides of the bending point;

[0011] After the air blowing operation is completed on the spacer strip, the part of the spacer strip to be bent is bent.

[0012] Preferably, the step of placing the spacer strip in a horizontal direction includes: placing the second side of the spacer strip facing downwards and the first side of the spacer strip facing upwards.

[0013] Preferably, the gas is a dry gas.

[0014] Preferably, the gas is a compressible gas; the gas includes one of the following: air, carbon dioxide, nitrogen, and argon.

[0015] Preferably, the inlet pressure of the gas is greater than or equal to 0.2 MPa, and the ventilation time is less than or equal to 5 seconds.

[0016] Preferably, the step of blowing gas into the through hole at the bending point of the spacer strip reduces the amount of desiccant at the bending point and moves it to both sides, with some of the through holes located on both sides of the bending point, includes:

[0017] Gas is simultaneously blown into the through holes at multiple bends of the spacer strip to reduce the amount of desiccant at each bend and move it to its respective sides. Some of the through holes are located on both sides of each bend, and some are located between adjacent bends.

[0018] Preferably, after the air blowing operation is completed on the spacer strip, the volume of the desiccant remaining at the bending point inside the spacer strip is less than or equal to 5% of the volume of the desiccant before the air blowing operation.

[0019] Preferably, the step involves blowing gas into the through hole at the point where the spacer is to be bent, and pressing the gas outlet of the inflation mechanism against the second surface of the spacer at the point where it is to be bent, so that the gas outlet is connected to at least one of the through holes at the point where the spacer is to be bent.

[0020] A gas distribution system for a bending method of a sealing spacer for insulating glass as described above, the gas distribution system comprising:

[0021] Gas storage devices;

[0022] Pneumatic control valve;

[0023] A drying device, a filtering device, and a pressure reducing device, or any one or any combination of two thereof, connected between the outlet of the gas storage device and the gas control valve;

[0024] An inflation mechanism has its air inlet connected to the outlet of the air control valve. The gas outlet of the inflation mechanism can abut against the wall surface of the spacer bar at the bending point, so that the gas outlet is connected to the plurality of through holes at the bending point of the spacer bar.

[0025] Preferably, the inflation mechanism includes: a lower support member, the side of the lower support member that abuts against the wall of the spacer strip at the bending point has a groove, the groove forms the gas outlet, and each side of the groove has two protruding limiting portions extending along the extension direction of the groove, the distance between the two limiting portions being equal to the width of the spacer strip; the air inlet on the lower support member is connected to the gas outlet.

[0026] The technical solution of the present invention has the following significant beneficial effects:

[0027] 1. The bending method for the filling spacer of insulating glass in this application can effectively reduce noise generation and overcome the problem of loosening of bending mechanism components caused by vibration compared with the prior art method of applying vibration before bending, thereby improving the stability of the mechanism.

[0028] 2. The bending method for the sealing spacer of insulating glass in this application utilizes the through holes on the sealing spacer itself, which are used to allow the internal desiccant to communicate with the gas inside the insulating glass. By blowing air, the desiccant at the bending point of the spacer is blown to both sides, which facilitates the bending of the spacer at the bending point in the later stage. The above method can change the power consumption of the original vibration processing method, reduce the production and processing cost of the spacer, and the corresponding gas distribution system has a simple structure and low failure rate.

[0029] 3. The bending method for the sealing spacer of insulating glass in this application can effectively improve the bending efficiency of the sealing spacer. Compared with the bending method of applying vibration, the bending efficiency can be increased by 60% to 70%.

[0030] 4. The original bending method, which involves applying vibration, can cause problems if there is a lot of desiccant residue inside the spacer during bending. This increases the tensile force required for the bending mechanism to bend the spacer, causing it to deviate from the set position and resulting in inaccurate bending dimensions. It can also deform the bending mechanism. Blowing air can reduce the tensile force during bending the spacer and increase the overall service life and stability of the bending mechanism.

[0031] 5. This application can optimize the structural layout of the original filling-type spacer bending machine, making it use fewer parts, and making the bending mechanism smaller and easier to manufacture.

[0032] Specific embodiments of the invention are disclosed in detail below with reference to the description and accompanying drawings, indicating how the principles of the invention can be employed. It should be understood that the embodiments of the invention are not therefore limited in scope. Features described and / or shown for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. Attached Figure Description

[0033] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.

[0034] Figure 1 This is a flowchart illustrating the steps of a method for bending a sealing spacer for insulating glass in an embodiment of the present invention.

[0035] Figure 2 This is a cross-sectional view of the sealing spacer in an embodiment of the present invention;

[0036] Figure 3 This is a schematic diagram of the structure of the second side of the sealing spacer in an embodiment of the present invention;

[0037] Figure 4 for Figure 2 Enlarged view of point I in the middle;

[0038] Figure 5 This is a schematic diagram of the structure of the air distribution system and the spacer bar when air is blown in accordance with each other in an embodiment of the present invention;

[0039] Figure 6 This is a schematic diagram of the spacer strip being bent using a first bending fixture in an embodiment of the present invention.

[0040] Figure 7 This is a schematic diagram of the first bending fixture and the second bending fixture working together to bend the spacer strip in an embodiment of the present invention.

[0041] Figure 8 This is a schematic diagram of the lower support component in the inflation mechanism of an embodiment of the present invention.

[0042] The reference numerals in the above figures are as follows:

[0043] 1. Spacer bar; 2. Desiccant; 3. Through hole; 4. First surface; 5. Second surface; 51. Recessed structure; 6. Pressing mechanism; 7. Inflating mechanism; 71. Lower support; 72. Groove; 73. Gas outlet; 74. Limiting part; 75. Air inlet; 8. Quick connector; 9. Throttling valve; 10. Gas branch; 11. Multi-port connector; 12. Main gas path; 13. Gas storage device; 14. Pneumatic control valve; 15. Drying device; 16. Filtering device; 161. Primary filter; 162. Precision filter; 17. Pressure reducing device; 18. First bending fixture; 181. Contact end; 19. Second bending fixture; 191. First rotating part; 192. Second rotating part. Detailed Implementation

[0044] The details of the present invention can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the invention in any way. Under the teachings of this invention, those skilled in the art can conceive of any possible modifications based on the invention, all of which should be considered within the scope of the invention. It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "mounted," "connected," and "connected" should be interpreted broadly, for example, they can refer to mechanical or electrical connections, or internal communication between two elements, and can be direct or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0046] To address the issue of desiccant filling the spacer hindering bending and to improve the processing quality and efficiency of the spacer 1, this application proposes a bending method for a spacer used in insulating glass. The spacer 1 has multiple through holes 3, and is filled with a desiccant 2, such as a molecular sieve. In one specific embodiment, the spacer 1 may include a first side 4 and a second side 5, the second side 5 being the side facing inwards when the insulating glass spacer 1 is bent, and having multiple through holes 3. When the spacer 1 is installed in the insulating glass, the desiccant 2 can communicate with the gas inside the insulating glass through the through holes 3, thereby absorbing moisture and keeping the gas inside the insulating glass dry. The desiccant 2 is generally granular, with a diameter larger than the through holes 3, thus preventing the desiccant 2 from falling out of the through holes 3.

[0047] For example, in one specific implementation, Figure 2 This is a cross-sectional view of the sealing spacer in an embodiment of the present invention. Figure 3 This is a schematic diagram of the structure of the second side of the sealing spacer in an embodiment of the present invention. Figure 4 for Figure 2 Enlarged view of point I, as shown Figures 2 to 4 As shown, the second surface 5 of the sealing spacer 1 has a recessed structure 51 on each side, which extends along the extending direction of the sealing spacer 1. Through holes 3 are formed at the bottom of the recessed structure 51, and multiple through holes 3 are arranged along the extending direction of the recessed structure 51. The sealing spacer 1 is filled with a desiccant 2, which has a certain height in the vertical direction. Through holes 3 for blowing air into the spacer 1 can also be formed on the first surface 4 of the spacer 1, or on the side of the spacer 1 that is in contact with the insulating glass.

[0048] Figure 1 This is a flowchart illustrating the steps of the bending method for the sealing spacer strip used in insulating glass in an embodiment of the present invention, as shown below. Figure 1 As shown, the bending method for the sealing spacer strip used in insulated glass may include:

[0049] S101: Place spacer 1 horizontally.

[0050] In this step, first place the spacer strip 1 horizontally. It is sufficient to keep it roughly horizontal so that the desiccant 2 inside the spacer strip 1 does not flow.

[0051] S102: Gas is blown into the through hole 3 at the bending point of the spacer 1 so that the desiccant 2 at the bending point of the spacer 1 is reduced and moved to both sides, with part of the through hole 3 located on both sides of the bending point.

[0052] In this step, gas can be blown into the through hole 3 at the bending point of the spacer strip 1. Utilizing the high pressure of the gas, the desiccant 2 at the bending point of the spacer strip 1 is blown to both sides, thus reducing the amount of desiccant 2 at the bending point. Since the gas blown into the spacer strip 1 needs to be expelled, this ensures that the desiccant 2 at the bending point of the spacer strip 1 is blown to both sides, with part of the through hole 3 located on both sides of the bending point.

[0053] As a feasible approach, the gas inlet pressure should be greater than or equal to 0.2 MPa. To improve efficiency, the ventilation time is determined by the ventilation pressure, generally less than or equal to 5 seconds, but other ranges are also possible. Under the aforementioned inlet pressure, most of the desiccant 2 at the bending point of the spacer strip 1 can be effectively blown to both sides, ensuring the reduction of desiccant 2 at the bending point of the spacer strip 1 after blowing. Since there are generally only one or two through holes 3 in the radial cross-section of the spacer strip 1, they cannot cover the entire second surface 5 within the radial cross-section of the spacer strip 1. Therefore, it is necessary to blow the desiccant 2 at other positions on the second surface 5 within the radial cross-section of the spacer strip 1 to both sides, thus requiring sufficient pressure. Simultaneously, under the aforementioned inlet pressure, the ventilation time can be effectively reduced, improving bending efficiency.

[0054] Alternatively, the gas can be a compressible gas. The gas may include one of the following: air, carbon dioxide, nitrogen, argon, etc. The above-mentioned gases are low in cost and do not pose other hazards. Of course, other types of gases may also be used in this application, and no limitation is made thereto. Furthermore, the gas should be as dry and clean as possible to reduce the consumption of desiccant 2 without affecting its absorption of moisture.

[0055] When there is only one bending point in spacer 1, gas can be blown into the through hole 3 of that bending point. When there are two or more bending points in spacer 1, in order to improve bending efficiency, gas can be blown into the through holes 3 of multiple bending points in this step simultaneously. This reduces the amount of desiccant 2 at the multiple bending points and moves it to both sides, with some through holes 3 located on both sides of each bending point. To ensure that the blown gas can be discharged, some through holes 3 need to be located between adjacent bending points.

[0056] To ensure that the desiccant 2 remaining in the bending area of ​​spacer 1 after the air blowing operation does not affect the subsequent bending operation, the volume of the desiccant 2 remaining in the bending area of ​​spacer 1 after the air blowing operation is completed is less than or equal to 5% of the volume of the desiccant 2 before the air blowing operation.

[0057] By blowing gas into the through hole 3 at the bending point of the spacer strip 1, the gas outlet of the inflation mechanism 7 can be pressed against the second surface of the bending point of the spacer strip 1, so that the gas outlet 73 is connected to at least one through hole 3 at the bending point of the spacer strip 1. The length of the gas outlet 73 covering the through hole 3 on the spacer strip 1 is greater than or equal to 1.1 times the arc length of the spacer strip 1 to be bent. In this way, the degree to which the desiccant 2 at the bending point of the spacer strip 1 is blown to both sides can be improved.

[0058] To facilitate air blowing at the bending point of spacer 1, an air distribution system is also proposed in this application. Figure 5 This is a schematic diagram of the structure of the air distribution system and the spacer bar during air blowing in an embodiment of the present invention, as shown below. Figure 5 As shown, the gas distribution system may include: a gas storage device 13; a gas control valve 14; a drying device 15, a filtering device 16, and a pressure reducing device 17, or any one or any combination thereof, connected between the outlet of the gas storage device 13 and the gas control valve 14; and an inflation mechanism 7, whose inlet 75 is connected to the outlet of the gas control valve 14, and whose gas outlet 73 can abut against the wall surface of the spacer 1 at the bending point, such as the second surface 5, so that the gas outlet 73 communicates with the multiple through holes 3 at the bending point of the spacer 1. The gas distribution system may also include: an upper pressure mechanism 6, which can tightly fit against the first surface 4 of the spacer 1 and simultaneously apply downward pressure, so that the inflation mechanism 7 can tightly fit against the second surface 5 of the spacer 1, making it difficult for the spacer 1 to move left or right.

[0059] The gas storage device 13 stores high-pressure compressed gas. The drying device 15 dries and dehumidifies the gas output from the gas storage device 13. The filtration device 16 filters the gas output from the gas storage device 13 to remove solid impurities. The filtration device 16 may include a primary filter 161 and a precision filter 162, which have different filtration accuracies. The primary filter 161 can be connected upstream of the precision filter 162. For example, the primary filter 161, drying device 15, and precision filter 162 can be connected in sequence, followed by a pressure reducing device 17 and then a pneumatic control valve 14. The pneumatic control valve 14 controls the output of the pressure-reduced compressed gas; the gas after passing through the pressure reducing device 17 can still be compressed gas at a pressure higher than atmospheric pressure.

[0060] When gas is blown into the interior of the spacer 1 at the bending point by the gas outlet 73 of the inflation mechanism 7 against the wall of the spacer 1, in order to reduce gas leakage, Figure 8 This is a schematic diagram of the lower support component in the inflation mechanism of an embodiment of the present invention, as shown below. Figure 8As shown, the inflation mechanism 7 may include: a lower support 71, the side of the lower support 71 that abuts against the wall of the spacer strip 1 at the bending point (such as the second surface 5) having a groove 72, the groove 72 forming a gas outlet 73, and two protruding limiting portions 74 extending along the extension direction of the groove 72 on each side of the groove 72, the distance between the two limiting portions 74 being equal to the width of the spacer strip 1; an air inlet 75 on the lower support 71 communicating with the gas outlet 73. With the above structure, the spacer strip 1 can be engaged with the two limiting portions 74, the sidewalls of the limiting portions 74 being in close contact with the sidewalls of the spacer strip 1, thus minimizing gas leakage from the gap between the sidewalls of the limiting portions 74 and the sidewalls of the spacer strip 1 during inflation. The groove 72 does not penetrate the lower support 71 in the extending direction of the spacer 1. This prevents gas from leaking from the gas outlet 73 of the lower support 71 through the gap between the upper surface of the lower support 71 and the second surface 5 of the spacer 1 when the second surface 5 of the spacer 1 abuts against the upper surface of the spacer 71. Through these structures, it can be ensured that the gas outlet 73 of the lower support 71 maintains high pressure after entering the spacer 1 through the through hole 3, thus blowing the desiccant 2 at the bending point of the spacer 1 to both sides. During the process of gas entering the spacer 1 from the lower support 71, the gas leakage rate should be kept as low as 10% or less; otherwise, gas waste and increased production costs will occur.

[0061] When the second side 5 of the sealing spacer 1 has a concave structure 51 on both sides and the through hole 3 is opened at the bottom of the concave structure 51, the shape of the upper surface of the lower support 71 between the two limiting parts 74 is the same as the second side 5 of the sealing spacer 1 with the concave structure 51. In this way, the two can cooperate to form an effective seal and reduce the leakage of gas.

[0062] When gas is simultaneously blown into the through holes 3 of multiple bending points of the spacer strip 1, there are multiple inflation mechanisms 7, corresponding to the number of bending points. The outlet of the pneumatic control valve 14 is connected to the multi-port connector 11 through the main gas passage 12. The multi-port connector 11 is connected to the air inlet 75 of the inflation mechanism 7 through multiple gas branches 10. A throttle valve 9 can be connected to the gas branch 10 to regulate the gas flow rate and ensure that the gas flow rate in each gas branch 10 is consistent. Within a unit time, the deviation of the gas flow rate in the gas branch 10 is controlled within 5% as much as possible through the regulation of the throttle valve 9. This can effectively prevent the gas pressure blown into a certain bending point from being too low, causing the desiccant 2 of the adjacent bending point to be blown to that bending point, which would compromise the processing quality of that bending point during subsequent bending.

[0063] A quick connector 8 can be connected to the air inlet 75 of the inflation mechanism 7, and the gas branch 10 can be connected to the quick connector 8 at the air inlet 75 of the inflation mechanism 7. In this way, a detachable connection can be achieved, which facilitates the connection and installation between devices.

[0064] Furthermore, the cross-sectional area of ​​the main gas path 12 should be greater than or equal to the sum of the cross-sectional areas of all gas branches 10. The pressure of the gas passing through the main gas path 12 should be greater than or equal to 0.2 MPa as much as possible.

[0065] As a feasible option, Figure 6 This is a schematic diagram illustrating the bending of the spacer strip at the bending point using a first bending fixture in an embodiment of the present invention. Figure 7 This is a schematic diagram illustrating the bending process of the first bending fixture and the second bending fixture at the bending point of the spacer strip in an embodiment of the present invention. Figure 6 and Figure 7 As shown, the gas distribution system may include a bending mechanism, which includes a first bending fixture 18 and a second bending fixture 19. The contact end of the first bending fixture 18 and the second bending fixture 19 can respectively contact the second surface 5 and the first surface 4 of the spacer strip 1. The first bending fixture 18 and the second bending fixture 19 cooperate to bend the spacer strip 1 to be bent after the gas is blown in.

[0066] S103: After blowing gas into the spacer bar 1 at the bending point to reduce the desiccant at the bending point and move it to both sides, the spacer bar 1 is bent.

[0067] In this step, after the air blowing operation is completed on the spacer 1, most or all of the desiccant 2 at the bending point of the spacer 1 is blown to both sides. At this time, there is basically no desiccant 2 residue at the bending point of the spacer 1. Therefore, when bending the bending point of the spacer 1, there will be no desiccant 2 to hinder the bending of the spacer 1.

[0068] As a feasible option, such as Figure 6 As shown, the abutting end 181 of the first bending fixture 18 can be used to contact the second surface 5 of the spacer strip 1, so that the middle part of the spacer strip 1 to be bent is aligned with the center of the abutting end 181 of the first bending fixture 18. Then, an external force can be applied to the first surface 4 of the spacer strip 1 in the direction of the abutting member to bend the spacer strip 1 at a certain angle. For example, as... Figure 7As shown, the second bending fixture 19 can be used to bend the spacer strip 1 to a certain angle. The second bending fixture 19 includes a first rotating member 191 and a second rotating member 192 that are hinged together, and the center of the hinge is the rotation center of the second bending fixture 19. The first rotating member 191 and the second rotating member 192 of the second bending fixture 19 are placed horizontally on the first surface 4 of the spacer strip 1. Then, by rotating the second rotating member 192 of the second bending fixture 19 clockwise by a certain angle, the part of the spacer strip 1 to be bent is bent.

[0069] Furthermore, in step S101, when the spacer strip 1 is placed horizontally, the second side 5 of the spacer strip 1 can face downwards, and the first side 4 of the spacer strip 1 can face upwards. This ensures that the desiccant 2 inside the spacer strip 1 essentially covers the second side 5. When gas is blown in through the through-hole 3 on the second side 5, it can directly blow up the desiccant 2 on the second side 5 and move it to both sides. Overall, this method minimizes the amount of desiccant 2 remaining at the bending point after blowing, while also using relatively minimal air volume.

[0070] This application may have the following advantages:

[0071] 1. The bending method for the filling spacer of insulating glass in this application can effectively reduce noise generation and overcome the problem of loosening of bending mechanism components caused by vibration compared with the prior art method of applying vibration before bending, thereby improving the stability of the mechanism.

[0072] 2. The bending method of the sealing spacer for insulating glass in this application utilizes the through hole 3 on the sealing spacer 1 itself, which is used to allow the internal desiccant 2 to communicate with the gas inside the insulating glass. By blowing air, the desiccant 2 at the bending point of the spacer 1 is blown to both sides, which facilitates the bending of the spacer 1 at the bending point in the later stage. The above method can change the power consumption of the original vibration processing method, reduce the production and processing cost of the spacer 1, and the corresponding gas distribution system has a simple structure and low failure rate.

[0073] 3. The bending method for the sealing spacer of insulating glass in this application can effectively improve the bending efficiency of the sealing spacer 1. Compared with the bending method of applying vibration, the bending efficiency can be increased by 60% to 70%.

[0074] 4. The original bending method, which involves applying vibration, can cause problems if there is residual desiccant 2 inside the spacer 1 during bending. This increases the tensile force required for the bending mechanism to bend the spacer 1, causing it to deviate from the set position and resulting in inaccurate bending dimensions of the spacer 1. It can also deform the bending mechanism. Blowing air can reduce the tensile force when bending the spacer 1, thereby increasing the overall service life and stability of the bending mechanism.

[0075] 5. This application can optimize the structural layout of the original filling-type spacer bending machine, making it use fewer parts, and making the bending mechanism smaller and easier to manufacture.

[0076] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified element, component, part, or step, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute “may” include is optional. Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The disclosure of “a” or “an” used to describe an element, component, part, or step does not imply exclusion of other elements, components, parts, or steps.

[0077] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A method for bending a sealing spacer strip for insulated glass, characterized in that, The sealing spacer has multiple through holes and is filled with desiccant. The bending method for the sealing spacer strip used in insulating glass includes: Placing the spacer strip horizontally includes: having the second side of the spacer strip facing downwards and the first side of the spacer strip facing upwards; Gas is blown into the through hole at the bend of the spacer strip to reduce the desiccant at the bend and move it to both sides. Part of the through hole is located on both sides of the bend. The gas outlet of the inflation mechanism is pressed against the second surface of the bend of the spacer strip so that the gas outlet is connected to at least one of the through holes at the bend of the spacer strip. After blowing gas into the spacer strip to reduce the amount of desiccant at the bending point and move it to both sides, the spacer strip is then bent.

2. The bending method for the sealing spacer strip for insulating glass according to claim 1, characterized in that, The gas is a dry gas.

3. The bending method for the sealing spacer strip for insulating glass according to claim 1, characterized in that, The gas is a compressible gas; the gas includes one of the following: air, carbon dioxide, nitrogen, and argon.

4. The bending method for the sealing spacer strip for insulating glass according to claim 1, characterized in that, The gas inlet pressure is greater than or equal to 0.2 MPa, and the ventilation time is less than or equal to 5 seconds.

5. The bending method for the sealing spacer strip for insulating glass according to claim 1, characterized in that, The step involves blowing gas into the through-hole at the bending point of the spacer strip to reduce the amount of desiccant at the bending point and move it to both sides. Part of the through-hole is located on both sides of the bending point. This includes: Gas is simultaneously blown into the through holes at multiple bends of the spacer strip to reduce the amount of desiccant at each bend and move it to its respective sides. Some of the through holes are located on both sides of each bend, and some are located between adjacent bends.

6. The bending method for the sealing spacer strip for insulating glass according to claim 1, characterized in that, After the air blowing operation is completed on the spacer strip, the volume of the desiccant remaining at the bending point inside the spacer strip is less than or equal to 5% of the volume of the desiccant before the air blowing operation.

7. A gas distribution system applied to the bending method of the sealing spacer for insulating glass as described in any one of claims 1 to 6, characterized in that, The gas distribution system includes: Gas storage devices; Pneumatic control valve; A drying device, a filtering device, and a pressure reducing device, or any one or any combination of two thereof, connected between the outlet of the gas storage device and the gas control valve; An inflation mechanism is provided, with its air inlet connected to the outlet of the air control valve. The gas outlet of the inflation mechanism abuts against the wall surface of the spacer strip at the bending point, so that the gas outlet communicates with the plurality of through holes at the bending point of the spacer strip. The inflation mechanism includes a lower support member, the side of which abuts against the wall surface of the spacer strip at the bending point having a groove, the groove forming the gas outlet. Each side of the groove has two protruding limiting portions extending along the extension direction of the groove, and the distance between the two limiting portions is equal to the width of the spacer strip. The air inlet on the lower support member communicates with the gas outlet.

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