Fan switching system for all-steel glass and semi-steel glass production

Abstract

The invention discloses a fan switching system for all-steel glass and semi-steel glass production, and relates to the technical field of glass tempering. The fan switching system for all-steel glass and semi-steel glass production comprises a control module, an air supply module and a switching module. The control module comprises a power supply cabinet body, a first switch and a second switch. The power supply cabinet body is fixedly arranged, and the first switch and the second switch are both installed in the power supply cabinet body. The air supply module comprises a first fan, a second fan, an air guide pipe and an air conveying pipe. The first fan and the second fan are fixedly arranged, the air guide pipe is communicated between the first fan and the glass cooling section, and the air conveying pipe is communicated between the second fan and the first fan. The switching module comprises a first wire and a second wire, the first wire is electrically connected between the first switch and the first fan, and the second wire is electrically connected between the second switch and the second fan. A series connection mode of the multiple fans is adopted, and switching of the total output wind pressure is achieved by controlling the opening and closing states of different switches.

Description

Technical Field

[0001] This invention relates to the field of glass tempering technology, specifically a fan switching system for the production of all-steel glass and semi-steel glass. Background Technology

[0002] In the production of all-tempered and semi-tempered glass, the fan switching system needs to adjust cooling parameters according to the glass type. For all-tempered glass, a high-pressure cold airflow is required for rapid cooling, controlling the surface stress above 90 MPa. For semi-tempered glass, a sub-high-pressure cold airflow is required for rapid cooling, controlling the surface stress between 24-80 MPa. The fan switching system allows for flexible switching between the two processes by adjusting the air pressure and cooling time.

[0003] Currently, most companies typically use high-power fans to cool all-tempered glass and low-power fans to cool semi-tempered glass during the production process. However, the investment cost of high-power fans is much higher than that of low-power fans, putting excessive pressure on companies. Moreover, switching between high-power and low-power fans requires manual switching of the air duct interfaces, which affects production efficiency.

[0004] To address the above problems, this invention provides a fan switching system for the production of all-steel glass and semi-steel glass, thereby solving the aforementioned issues. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fan switching system for the production of all-steel glass and semi-steel glass, comprising a control module, an air supply module, and a switching module. The control module includes a power supply cabinet, a first switch, and a second switch. The power supply cabinet is fixedly installed, and both the first and second switches are installed within the power supply cabinet. The air supply module includes a first fan, a second fan, an air duct, and an air delivery pipe. Both the first and second fans are fixedly installed. The air duct connects the air outlet of the first fan to the air inlet of the glass cooling section, and the air delivery pipe connects the air outlet of the second fan to the air inlet of the first fan. The switching module includes a first wire and a second wire. The first wire is electrically connected between the first switch and the control motor of the first fan, and the second wire is electrically connected between the second switch and the control motor of the second fan.

[0006] If the first switch is turned on, the first fan runs alone, and the air pressure value of the glass cooling section is the output air pressure value of the first fan. If the first switch and the second switch are turned on at the same time, the first fan and the second fan run simultaneously, and the air intake of the glass cooling section is the sum of the output air pressure values ​​of the first fan and the second fan. Therefore, by switching the state of the second switch, the number of fans in operation can be switched to meet the usage requirements of different processes.

[0007] Furthermore, as a preferred embodiment, the air supply pipe is connected to a deflector pipe, and a reversing component is provided at the connection between the deflector pipe and the air supply pipe. The reversing component includes a rotating shaft and a baffle. The rotating shaft rotatably passes through the pipe wall at the connection between the air supply pipe and the deflector pipe, and the baffle is fixed on the rotating shaft and rotatably disposed inside the air supply pipe.

[0008] The rotating shaft, driven by external force, will cause the baffle to rotate inside the air supply pipe, thereby blocking the deflector pipe or the air supply pipe and switching the air intake channel.

[0009] Furthermore, as a preferred embodiment, the power supply cabinet also includes a drive assembly, which includes a stepper motor. The stepper motor is fixedly mounted, and a spur gear one is fixed to the output end of the stepper motor. A spur gear two is mounted on the rotating shaft and meshes with the spur gear one. A ratchet and pawl assembly is provided between the spur gear two and the rotating shaft. A torsion spring is connected between the rotating shaft and the inner wall of the connection between the air supply pipe and the deflector pipe.

[0010] Furthermore, as a preferred embodiment, a third switch is also included, and the stepper motor is electrically connected to the third switch by a wire.

[0011] Furthermore, as a preferred embodiment, both the air inlet of the second fan and the air inlet of the deflector duct are connected to a filter screen using flanges.

[0012] Furthermore, as a preferred embodiment, a return pipe one and a return pipe two are connected between the outer wall of the air supply pipe and the deflector pipe, with a solenoid valve one connected to the return pipe one and a solenoid valve two connected to the return pipe two.

[0013] Furthermore, preferably, the first solenoid valve is electrically connected to the third switch via the wire three, and the second solenoid valve is electrically connected to the second switch via the wire two.

[0014] Compared with the prior art, the present invention provides a fan switching system for the production of all-steel glass and semi-steel glass, which has the following beneficial effects:

[0015] 1. By using the first and second fans in series, the total output air pressure can be increased to meet the high-pressure requirements for cooling in all-steel glass processing, thus replacing the use of a single high-power fan. This reduces investment costs. Moreover, switching the state of the second switch can change the number of fans in operation, thereby changing the output air pressure. Therefore, there is no need to manually switch the air duct interface, improving production efficiency.

[0016] 2. By using ductwork and reversing components, the airflow channel can be switched. During the semi-steel glass cooling process, the airflow resistance of the first fan's air inlet channel is prevented from being too high, ensuring that the output air pressure of the first fan can reach the preset air pressure value for the semi-steel glass cooling process.

[0017] 3. By using return pipe one and return pipe two, combined with deflector pipe and reversing component, the filters at the two air inlets can be automatically cleaned alternately. This not only prevents filter clogging and ensures that the output air pressure can be stably applied to the glass surface, keeping the cooling effect of the glass uniform, but also eliminates the need for manual periodic filter cleaning, reducing labor costs and achieving multiple benefits. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structural planar distribution of the present invention;

[0019] Figure 2 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the connection between the air supply pipe and the deflector pipe of the present invention;

[0021] Figure 4 This is a schematic diagram of the commutation component structure of the present invention;

[0022] Figure 5 For the present invention Figure 3 Enlarged diagram of point A in the middle.

[0023] In the diagram: 11. Power supply cabinet; 12. First switch; 13. Second switch; 14. Third switch; 21. First fan; 22. Second fan; 23. Air duct; 24. Air supply duct; 31. Wire 1; 32. Wire 2; 33. Wire 3; 25. Deflector duct; 41. Shaft; 42. Baffle; 51. Stepper motor; 52. Spur gear 1; 53. Spur gear 2; 54. Ratchet and pawl assembly; 55. Torsion spring; 7. Filter screen; 61. Return pipe 1; 62. Return pipe 2; 63. Solenoid valve 1; 64. Solenoid valve 2. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0025] 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 pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0026] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] Furthermore, the terms "first," "second," etc., in the specification and claims of this application or in the aforementioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] Reference Figures 1-5 The present invention provides a technical solution:

[0030] A fan switching system for the production of all-steel glass and semi-steel glass includes a control module, an air supply module, and a switching module. The control module includes a power supply cabinet 11, a first switch 12, and a second switch 13. The power supply cabinet 11 is fixedly installed, and both the first switch 12 and the second switch 13 are installed inside the power supply cabinet 11. The air supply module includes a first fan 21, a second fan 22, an air guide duct 23, and an air delivery duct 24. The first fan 21 and the second fan 22 are both fixedly installed. The air guide duct 23 connects the air outlet of the first fan 21 to the air inlet of the glass cooling section, and the air delivery duct 24 connects the air outlet of the second fan 22 to the air inlet of the first fan 21. The switching module includes a first wire 31 and a second wire 32. The first wire 31 is electrically connected between the first switch 12 and the control motor of the first fan 21, and the second wire 32 is electrically connected between the second switch 13 and the control motor of the second fan 22.

[0031] During the semi-steel glass cooling process, the first switch 12 is turned on, and the first fan 21 operates independently. The output air pressure of the first fan 21 can meet the sub-high air pressure requirements for semi-steel glass cooling.

[0032] During the cooling process of all-steel glass, the first switch 12 and the second switch 13 are turned on simultaneously, and the first fan 21 and the second fan 22 operate at the same time. This is equivalent to the first fan 21 and the second fan 22 operating in series. The first fan 21 and the second fan 22 can pressurize the airflow. Therefore, the total output air pressure is the sum of the air pressures of the first fan 21 and the second fan 22, so the total output air pressure can meet the high air pressure requirements for cooling all-steel glass.

[0033] In summary, by using the first fan 21 and the second fan 22 in series, the total output air pressure can be increased to meet the high-pressure requirements for cooling in all-steel glass processing, thus replacing the use of a single high-power fan. This reduces the investment cost. Moreover, by switching the state of the second switch 13, the number of fans in operation can be changed, thereby altering the output air pressure. Therefore, there is no need to manually switch the interface of the air duct 23, improving production efficiency.

[0034] In addition, by using multi-stage pressurization, the speed of a single fan can be reduced, thereby reducing noise pollution.

[0035] It should be noted that in actual operation, due to the influence of the system resistance curve, the total wind pressure after series connection will be slightly lower than the theoretical value.

[0036] It should be explained that, during production and use, the second fan 22 can be formed by connecting several small-power fans in series. The power of the first fan 21 and several small-power fans is 400~710kw. By using the above-mentioned series connection of multiple small-power fans, the cost can be controlled to the minimum while ensuring that the output air pressure meets the requirements of all-steel glass production.

[0037] In a preferred embodiment, a deflector duct 25 is connected to the air supply duct 24. A reversing component is provided at the connection between the deflector duct 25 and the air supply duct 24. The reversing component includes a rotating shaft 41 and a baffle 42. The rotating shaft 41 rotatably passes through the pipe wall at the connection between the air supply duct 24 and the deflector duct 25. The baffle 42 is fixed on the rotating shaft 41 and is rotatably disposed inside the air supply duct 24.

[0038] First, it needs to be explained that, under normal circumstances, during the semi-steel glass cooling process, the first fan 21 is running while the second fan 22 is not running. This is equivalent to adding multiple obstacles at the air inlet of the first fan 21. These obstacles will significantly increase the local resistance (such as sudden contraction / expansion at the inlet / outlet of the second fan 22, impeller blockage, etc.), causing the air pressure to fail to reach the preset air pressure value for the semi-steel glass cooling process.

[0039] Therefore, the above problem can be solved by setting up the duct 25 and the reversing assembly, as follows:

[0040] During the cooling process of all-steel glass, the first fan 21 and the second fan 22 operate simultaneously. At this time, under the action of external force, the rotating shaft 41 drives the baffle 42 to block the deflector duct 25. Therefore, the airflow will enter from the air inlet of the second fan 22, and the airflow will gradually increase in pressure, providing high-pressure airflow conditions for the cooling process of all-steel glass.

[0041] During the semi-steel glass cooling process, the first fan 21 operates independently. Under the action of external force, the rotating shaft 41 drives the baffle 42 to block the air outlet of the second fan 22. Therefore, the airflow will enter from the deflector duct 25, thereby avoiding obstructions at the air inlet of the first fan 21 and ensuring that the output air pressure of the first fan 21 can reach the preset air pressure value for the semi-steel glass cooling process.

[0042] As a preferred embodiment, a fan switching system for the production of all-steel glass and semi-steel glass further includes a drive assembly, which includes a stepper motor 51. The stepper motor 51 is fixedly installed, and a spur gear 52 is fixedly installed at the output end of the stepper motor 51. A spur gear 53 is mounted on the rotating shaft 41 and rotates. The spur gear 52 meshes with the spur gear 53. A ratchet and pawl assembly 54 is provided between the spur gear 53 and the rotating shaft 41. A torsion spring 55 is connected between the rotating shaft 41 and the inner wall of the connection between the air supply pipe 24 and the deflector pipe 25.

[0043] It needs to be explained that the stepper motor 51 controls the rotation angle of the rotor through pulse signals. Each time a pulse is received, the rotor rotates by a fixed angle. When a phase winding of the stator is energized, a magnetic field is generated that attracts the rotor permanent magnet, causing the rotor to rotate to the magnetic field equilibrium position (i.e., the rotor teeth are aligned with the stator teeth). At this point, even if the stepper motor 51 continues to be energized, the rotor will remain stationary due to magnetic field locking.

[0044] Specifically, for example, please refer to Figures 3 to 5 When stepper motor 51 starts, it drives spur gear 1 52 to rotate clockwise. Spur gear 1 52 then drives spur gear 2 53 to rotate counterclockwise through meshing transmission. When spur gear 2 53 rotates counterclockwise, it drives the pawl part of ratchet pawl assembly 54 to mesh with the ratchet part, which in turn drives the ratchet part of ratchet pawl assembly 54 to rotate the rotating shaft 41 synchronously. When the rotating shaft 41 drives the baffle 42 to rotate counterclockwise until it blocks the air outlet of the second fan 22, the baffle 42 remains stationary, thus achieving the rotation of the baffle 42. When stepper motor 51 is turned off, the torsion spring 55, which is in an energy storage state, drives the rotating shaft 41 to rotate clockwise. The rotating shaft 41 drives the ratchet part of ratchet pawl assembly 54 to rotate freely in the pawl part, thus resetting the baffle 42. Therefore, by controlling the start / stop state of stepper motor 51, the position of baffle 42 can be switched.

[0045] In a preferred embodiment, the power cabinet 11 also includes a third switch 14, and the stepper motor 51 is electrically connected to the third switch 14 by a wire 33.

[0046] When the third switch 14 is open, the stepper motor 51 is connected to the conductor via wire 33. Conversely, when the third switch 14 is closed, the stepper motor 51 is de-energized. Therefore, by controlling the opening and closing state of the third switch 14, the power-on and power-off state of the stepper motor 51 can be switched.

[0047] In a preferred embodiment, both the air inlet of the second fan 22 and the air inlet of the deflector duct 25 are connected to a filter screen 7 by a flange.

[0048] It should be noted that filter 7 can intercept large debris in the air (such as paper scraps, plastic pieces and large dust agglomerates), prevent the air duct from being blocked, ensure that the airflow distribution in the air duct is uniform, and ensure that the output air pressure can be stably applied to the glass surface, thereby ensuring that the cooling effect of the glass is consistent.

[0049] In a preferred embodiment, a return pipe 61 and a return pipe 62 are connected between the outer walls of the air supply pipe 24 and the deflector pipe 25. A solenoid valve 63 is connected to the return pipe 61, and a solenoid valve 64 is connected to the return pipe 62.

[0050] If solenoid valve 1 (63) is in the open state and solenoid valve 2 (64) is in the closed state, then return pipe 1 (61) is in the conductive state, and air supply pipe 24 and deflector pipe 25 can conduct airflow through return pipe 1 (61). If solenoid valve 1 (63) is in the closed state and solenoid valve 2 (64) is in the open state, then return pipe 2 (62) is in the conductive state, and air supply pipe 24 and deflector pipe 25 can conduct airflow through return pipe 2 (62).

[0051] In a preferred embodiment, the first solenoid valve 63 is electrically connected to the third switch 14 via the third wire 33, and the second solenoid valve 64 is electrically connected to the second switch 13 via the second wire 32.

[0052] The third switch 14 can control the opening and closing state of solenoid valve 63, and the second switch 13 can control the opening and closing state of solenoid valve 64. The opening and closing states of the third switch 14 and the second switch 13 are always opposite.

[0053] Specifically, when the third switch 14 is opened, the second switch 13 is closed. At this time, the first fan 21 operates independently. When the third switch 14 is opened, the baffle 42 completely blocks the air outlet of the second fan 22. The airflow will be introduced through the deflector duct 25. The deflector duct 25 and the second fan 22 are only connected through the return pipe 61. Therefore, part of the airflow introduced in the deflector duct 25 will enter the section of the second fan 22 through the return pipe 61. This part of the airflow can clean the filter screen 7 at the air inlet of the second fan 22 by blowing air in the reverse filtration direction. When the second switch 13 is open, the third switch 14 is closed. At this time, the first fan 21 and the second fan 22 operate synchronously. When the third switch 14 is closed, the baffle 42 completely blocks the deflector duct 25. The airflow will be introduced through the air inlet of the second fan 22. The deflector duct 25 and the second fan 22 are only connected through the return pipe 62. Therefore, part of the airflow introduced by the second fan 22 will enter the deflector duct 25 through the return pipe 62. This part of the airflow can clean the filter screen 7 at the air inlet of the deflector duct 25 by blowing air in the reverse filtration direction.

[0054] In summary, the filters 7 at the two air inlets can automatically clean themselves alternately. Therefore, this not only prevents the filters 7 from clogging and ensures that the output air pressure can be stably applied to the glass surface, keeping the cooling effect of the glass consistent, but also eliminates the need for manual periodic cleaning of the filters 7, reducing labor costs.

[0055] Specifically, when cooling semi-tempered glass is required: First, simultaneously turn on the first switch 12 and the third switch 14. The first fan 21 runs independently, while the baffle 42 blocks the air outlet of the second fan 22. The airflow is introduced through the deflector duct 25 to reduce air pressure loss, so as to ensure that the output air pressure reaches the sub-high air pressure value required for semi-tempered glass cooling. During this period, part of the airflow in the deflector duct 25 enters the section of the second fan 22 through the return pipe 61. This part of the airflow can clean the filter screen 7 at the air inlet of the second fan 22 by blowing air in the reverse filtration direction. After the semi-tempered glass cooling process is completed, turn off the first switch 12 and the third switch 14.

[0056] When cooling processing of all-steel glass is required, first switch 12 and second switch 13 are turned on simultaneously. First fan 21 and second fan 22 run synchronously. At the same time, baffle 42 blocks the duct 25. Airflow is introduced through the air inlet of second fan 22 to achieve air pressure superposition, so as to ensure that the output air pressure reaches the high air pressure value required for cooling all-steel glass. During this period, part of the airflow in second fan 22 will enter the duct 25 through return pipe 62. This part of the airflow can clean the filter screen 7 at the air inlet of duct 25 by blowing air in the reverse filtration direction. After the cooling processing of all-steel glass is completed, first switch 12 and second switch 13 can be turned off.

[0057] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A fan switching system for the production of all-steel glass and semi-steel glass, characterized in that: include: The control module includes a power cabinet (11), a first switch (12) and a second switch (13). The power cabinet (11) is fixedly installed, and the first switch (12) and the second switch (13) are both installed inside the power cabinet (11). The air supply module includes a first fan (21), a second fan (22), an air guide pipe (23), and an air delivery pipe (24). The first fan (21) and the second fan (22) are both fixedly installed. The air guide pipe (23) is connected between the air outlet of the first fan (21) and the air inlet of the glass cooling section. The air delivery pipe (24) is connected between the air outlet of the second fan (22) and the air inlet of the first fan (21). The switching module includes a first wire (31) and a second wire (32). The first wire (31) is electrically connected between the first switch (12) and the control motor of the first fan (21), and the second wire (32) is electrically connected between the second switch (13) and the control motor of the second fan (22). When processing semi-tempered glass, turn on the first switch (12), and the first fan (21) runs independently. The air pressure value of the glass cooling section is the output air pressure value of the first fan (21). When processing all-steel glass, the first switch (12) and the second switch (13) are turned on at the same time, and the first fan (21) and the second fan (22) run at the same time. The air intake of the glass cooling section is the sum of the output air pressure of the first fan (21) and the second fan (22).

2. The fan switching system for all-steel glass and semi-steel glass production according to claim 1, characterized in that: The air supply pipe (24) is connected to a deflector pipe (25). A reversing component is provided at the connection between the deflector pipe (25) and the air supply pipe (24). The reversing component includes a rotating shaft (41) and a baffle (42). The rotating shaft (41) rotates through the pipe wall at the connection between the air supply pipe (24) and the deflector pipe (25). The baffle (42) is fixed on the rotating shaft (41) and is rotatably disposed inside the air supply pipe (24). Under the action of external force, the rotating shaft (41) will drive the baffle (42) to rotate in the air supply pipe (24) to block the deflector pipe (25) or the air supply pipe (24) and realize the switching of the air intake channel.

3. The fan switching system for all-steel glass and semi-steel glass production according to claim 2, characterized in that: It also includes a drive assembly, which includes a stepper motor (51), the stepper motor (51) is fixedly installed, a spur gear (52) is fixed at the output end of the stepper motor (51), a spur gear (53) is mounted on the rotating shaft (41), the spur gear (52) meshes with the spur gear (53), a ratchet and pawl assembly (54) is provided between the spur gear (53) and the rotating shaft (41), and a torsion spring (55) is connected between the rotating shaft (41) and the inner wall of the connection between the air supply pipe (24) and the deflector pipe (25).

4. The fan switching system for producing all-steel glass and semi-steel glass according to claim 3, characterized in that: The power cabinet (11) also includes a third switch (14), and the stepper motor (51) is electrically connected to the third switch (14) by a wire three (33).

5. A fan switching system for producing all-steel glass and semi-steel glass according to claim 4, characterized in that: The air inlet of the second fan (22) and the air inlet of the deflector duct (25) are both connected with a filter screen (7) by a flange.

6. The fan switching system for all-steel glass and semi-steel glass production according to claim 5, characterized in that: The outer wall of the air supply pipe (24) and the deflector pipe (25) are connected by a return pipe one (61) and a return pipe two (62). A solenoid valve one (63) is connected to the return pipe one (61), and a solenoid valve two (64) is connected to the return pipe two (62).

7. A fan switching system for producing all-steel glass and semi-steel glass according to claim 6, characterized in that: The first solenoid valve (63) is electrically connected to the third switch (14) via the third wire (33), and the second solenoid valve (64) is electrically connected to the second switch (13) via the second wire (32).

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