Air path switching device

Abstract

The present application relates to the technical field of gas circuit control, in particular to a kind of gas circuit switching device, the gas circuit switching device includes gas conveying mechanism, switching mechanism and actuator, gas conveying mechanism is equipped with gas inlet channel and first gas conveying channel, switching mechanism is set up corresponding gas conveying mechanism, actuator is connected with switching mechanism, for driving switching mechanism relative gas conveying mechanism rotation, to make switching mechanism between gas inlet channel and first gas conveying channel conduction, or cut off between gas inlet channel and first gas conveying channel.The gas circuit switching device of the present application adopts the switching frequency mode of actuator to control the speed of gas circuit, so that the gas circuit can realize the switching of different output frequencies at different speeds, effectively match the frequency of paper feeding with the beat of pneumatic element through speed, so that the frequency of paper feeding changes, and the beat of pneumatic element also changes, to achieve the purpose of improving the convenience of pneumatic element.

Description

Technical Field

[0001] This invention relates to the field of pneumatic control technology, and in particular to a pneumatic switching device. Background Technology

[0002] When a paper folding machine is working, the paper feeding frequency needs to be matched with the cycle time of the pneumatic components. In traditional technology, the air supply frequency of the air circuit is generally controlled by a solenoid valve to adjust the working cycle time of the pneumatic components. However, when the paper feeding frequency changes, the control time of the solenoid valve needs to be recalibrated in order to match the working cycle time of the pneumatic components with the paper feeding frequency, which presents a problem of complex adjustment of the working cycle time of the pneumatic components. Summary of the Invention

[0003] Therefore, it is necessary to recalibrate the solenoid valve control time when the paper feeding frequency changes so that the working cycle of the pneumatic components matches the paper feeding frequency. This presents a problem of complex adjustment of the working cycle of the pneumatic components. Therefore, a pneumatic switching device is provided.

[0004] A gas path switching device includes: a gas delivery mechanism, a switching mechanism, and an actuator. The gas delivery mechanism is provided with an inlet channel and a first gas delivery channel. The switching mechanism is provided corresponding to the gas delivery mechanism. The actuator is connected to the switching mechanism and is used to drive the switching mechanism to rotate relative to the gas delivery mechanism, so that the switching mechanism connects the inlet channel and the first gas delivery channel or disconnects the inlet channel and the first gas delivery channel.

[0005] The aforementioned pneumatic switching device controls the rotation frequency of the actuator to match the paper feeding frequency. When the paper feeding frequency changes, the actuator controls the rotation speed of the switching mechanism relative to the air delivery mechanism, which also changes accordingly. The connection or disconnection time between the air inlet channel and the first air delivery channel is also adjusted accordingly, thereby achieving matching between the paper feeding frequency and the cycle time of the pneumatic components. Through the above design, using the actuator to control the switching frequency of the pneumatic circuit via rotational speed is beneficial for replacing the solenoid valve to switch the output frequency of the pneumatic circuit. This allows the pneumatic circuit to switch different output frequencies at different rotational speeds, effectively matching the cycle time of the pneumatic components with the paper feeding frequency. This ensures that as the paper feeding frequency changes, the cycle time of the pneumatic components also changes, thereby improving the ease of adjustment of the pneumatic components.

[0006] In one embodiment, the switching mechanism includes a transition component and a switching plate. The transition component is connected to the actuator and drives the switching plate to fit against the gas delivery mechanism. The switching plate connects or disconnects the air inlet channel from the first gas delivery channel. By using the transition component to drive the switching plate to fit against the gas delivery mechanism, a seal can be maintained between the switching mechanism and the gas delivery mechanism, preventing gas leakage and improving the sealing performance between the gas delivery mechanism and the switching mechanism.

[0007] In one embodiment, the adapter assembly includes an adapter plate, a guide member, and an elastic member. The adapter plate is connected to the actuator, the guide member is mounted on the adapter plate and slidably connected to the switching plate, and the elastic member is disposed between the adapter plate and the switching plate to drive the switching plate to fit against the gas delivery mechanism. Driving the switching plate to fit against the gas delivery mechanism via the elastic member ensures continuous contact between the switching plate and the gas delivery mechanism under the force of the elasticity, preventing gaps between the switching mechanism and the gas delivery mechanism that could lead to gas leakage.

[0008] In one embodiment, the switching plate is provided with an air guiding space that connects the inlet air channel and the first air delivery channel. The air guiding space is an arc-shaped groove. Gas can enter the air guiding space from the inlet air channel and then enter the first air delivery channel from the air guiding space, thereby enabling the switching plate to connect the inlet air channel and the first air delivery channel, and the air path is connected. When the inlet air channel and the first air delivery channel are not simultaneously connected to the air guiding space, the connection between the inlet air channel and the first air delivery channel is interrupted, and the air path is terminated. In use, by controlling the curvature of the air guiding space, the connection time between the inlet air channel and the first air delivery channel can be effectively controlled, thereby realizing the adjustment of the switching interval time.

[0009] In one embodiment, the gas delivery mechanism includes an air intake plate and a first back plate connected to the air intake plate. Both the air intake channel and the first gas delivery channel pass through the first back plate, which is fitted against the switching mechanism. By using the first back plate to fit against the switching mechanism, when the gas delivery mechanism wears due to friction from the switching mechanism, only the first back plate needs to be replaced, thus avoiding the need to replace the entire gas delivery mechanism and improving the economic efficiency of its maintenance.

[0010] In one embodiment, the first air supply channel includes a first air outlet section and a first air outlet hole, the first air outlet section being disposed on the air inlet plate and the first air outlet hole being disposed on the first back plate.

[0011] In one embodiment, the first air supply channel further includes a second air outlet section connected to the first air outlet section. The second air outlet section is arc-shaped and disposed on the air inlet plate. There are multiple first air outlet holes, including two first air outlet holes, each connected to the second air outlet section. By using multiple first air outlet holes connected to the second air outlet section, the switching mechanism only needs to connect any one of the first air outlet holes to the air inlet channel to achieve connection between the air inlet channel and the first air supply channel. This allows the switching mechanism to connect the air inlet channel and the first air supply channel multiple times during one rotation, thereby increasing the air path connection frequency.

[0012] In one embodiment, the gas supply mechanism further includes a second back plate and a second gas supply channel passing through the second back plate. The gas inlet channel passes through the second back plate. There are two switching mechanisms, each connected to an actuator. One switching mechanism is attached to the first back plate, and the other is attached to the second back plate. By using two second back plates and two switching mechanisms, when adding pneumatic components, only the second back plate and the switching mechanism need to be added, avoiding the need for an additional gas supply mechanism and improving the economic efficiency of the gas path switching device.

[0013] In one embodiment, the air intake channel includes an air intake section, a first air intake hole, and a second air intake hole. The air intake section is T-shaped and is disposed on the air intake plate. The first air intake hole and the second air intake hole are both connected to the air intake section. The first air intake hole is disposed on the first back plate, and the second air intake hole is disposed on the second back plate.

[0014] In one embodiment, there are multiple gas delivery mechanisms, and the number of switching mechanisms is the same as the number of gas delivery mechanisms. The actuator is a rotating shaft connected to each switching mechanism. By using the actuator to drive the switching mechanisms to rotate synchronously, it is beneficial to keep the output frequency of each gas delivery mechanism consistent, thereby achieving the purpose of convenient adjustment of multiple pneumatic components simultaneously. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the gas path switching device shown in Embodiment 1 of the present invention;

[0016] Figure 2 for Figure 1 An exploded view of the gas delivery mechanism of the gas path switching device shown.

[0017] Figure 3 for Figure 2 A cross-sectional schematic diagram of the air intake plate of the gas delivery mechanism shown;

[0018] Figure 4 for Figure 1 An exploded view of the switching mechanism of the gas path switching device shown;

[0019] Figure 5 This is a schematic diagram of the gas path switching device shown in Embodiment 2 of the present invention;

[0020] Figure 6 for Figure 5 An exploded view of the gas delivery mechanism and switching mechanism of the gas path switching device shown;

[0021] Figure 7 for Figure 6 A cross-sectional schematic diagram of the air intake plate of the gas delivery mechanism shown;

[0022] Figure 8 This is a schematic diagram of the gas path switching device shown in Embodiment 3 of the present invention.

[0023] The meanings of the numbers in the attached diagram are as follows:

[0024] 100. Gas path switching device;

[0025] 10. Gas delivery mechanism; 11. Air inlet channel; 111. Air inlet section; 112. First air inlet; 113. Second air inlet; 12. First gas delivery channel; 121. First air outlet section; 122. First air outlet; 123. Second air outlet section; 13. Air inlet plate; 14. First back plate; 141. Reference mark; 15. Second back plate; 16. Second gas delivery channel;

[0026] 20. Switching mechanism; 21. Adapter assembly; 211. Adapter plate; 212. Guide component; 213. Elastic component; 214. Top screw; 22. Switching plate; 221. Air guide space; 222. Circulation indicator; 223. Isolation indicator;

[0027] 30. Actuator. Detailed Implementation

[0028] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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 invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0034] Example 1

[0035] like Figure 1 As shown, the gas path switching device 100 includes: a gas delivery mechanism 10, a switching mechanism 20, and an actuator 30. The gas delivery mechanism 10 has an inlet channel and a delivery channel, and the actuator 30 drives the switching mechanism 20 to rotate, thereby opening or closing the inlet channel and the delivery channel.

[0036] The following text, combined with Figures 1 to 4 The above-mentioned gas path switching device 100 will be further explained.

[0037] like Figures 1 to 2 As shown, the gas path switching device 100 includes: a gas delivery mechanism 10, a switching mechanism 20, and an actuator 30. The gas delivery mechanism 10 is provided with an air inlet channel 11 and a first gas delivery channel 12. The switching mechanism 20 is provided corresponding to the gas delivery mechanism 10. The actuator 30 is connected to the switching mechanism 20 and is used to drive the switching mechanism 20 to rotate relative to the gas delivery mechanism 10, so that the switching mechanism 20 connects the air inlet channel 11 and the first gas delivery channel 12, or disconnects the air inlet channel 11 and the first gas delivery channel 12.

[0038] The gas path switching device 100 in this embodiment, such as Figure 1 As shown, by controlling the rotation frequency of the actuator 30 to match the paper feeding frequency, when the paper feeding frequency changes, the actuator 30 controls the rotation speed of the switching mechanism 20 relative to the air supply mechanism 10 to change accordingly, and the time of connection or disconnection between the air inlet channel 11 and the first air supply channel 12 is also adjusted accordingly, thereby achieving the matching of the paper feeding frequency with the rhythm of the pneumatic components.

[0039] like Figure 2 and Figure 3 As shown, to improve the maintenance economy of the gas transmission mechanism 10, the gas transmission mechanism 10 includes an air intake plate 13 and a first back plate 14 connected to the air intake plate 13. Both the air intake channel 11 and the first gas transmission channel 12 pass through the first back plate 14, and the first back plate 14 is in contact with the switching mechanism 20. By using the method of having the first back plate 14 in contact with the switching mechanism 20, when the gas transmission mechanism 10 is worn due to friction from the switching mechanism 20, only the first back plate 14 needs to be replaced, thus avoiding the need to replace the entire gas transmission mechanism 10 and achieving the goal of improving the maintenance economy of the gas transmission mechanism 10.

[0040] Specifically, the first air supply channel 12 includes a first air outlet section 121 and a first air outlet 122. The first air outlet section 121 is located on the air inlet plate 13, and the first air outlet 122 is located on the first back plate 14.

[0041] Furthermore, such as Figure 2 and Figure 3As shown, to increase the airflow frequency, the first air supply channel 12 also includes a second air outlet section 123 connected to the first air outlet section 121. The second air outlet section 123 is arc-shaped and is located on the air inlet plate 13. There are multiple first air outlet holes 122, including two first air outlet holes 122, each connected to the second air outlet section 123. By connecting multiple first air outlet holes 122 to the second air outlet section 123, the switching mechanism 20 only needs to connect any one of the first air outlet holes 122 to the air inlet channel 11 to achieve connection between the air inlet channel 11 and the first air supply channel 12. This allows the switching mechanism 20 to connect the air inlet channel 11 and the first air supply channel 12 multiple times during one rotation, thereby increasing the airflow frequency.

[0042] like Figure 4 As shown, to improve the sealing performance between the gas delivery mechanism 10 and the switching mechanism 20, the switching mechanism 20 includes a connecting component 21 and a switching plate 22. The connecting component 21 is connected to the actuator 30 and drives the switching plate 22 to fit against the gas delivery mechanism 10. The switching plate 22 connects or disconnects the air inlet channel 11 and the first gas delivery channel 12. By using the connecting component 21 to drive the switching plate 22 to fit against the gas delivery mechanism 10, a seal can be maintained between the switching mechanism 20 and the gas delivery mechanism 10, preventing gas leakage and achieving the purpose of improving the sealing performance between the gas delivery mechanism 10 and the switching mechanism 20.

[0043] Specifically, such as Figure 4 As shown, to prevent gas leakage, the adapter assembly 21 includes an adapter plate 211, a guide member 212, and an elastic member 213. The actuator 30 passes through the adapter plate 211 and the switching plate 22. The adapter plate 211 is connected to the actuator 30 by a set screw 214. The guide member 212 is a pin, which is mounted on the adapter plate 211 and slidably connected to the switching plate 22. The elastic member 213 is a spring, which is disposed between the adapter plate 211 and the switching plate 22 and sleeved on the guide member 212 to drive the switching plate 22 to fit against the gas delivery mechanism 10. By driving the switching plate 22 to fit against the gas delivery mechanism 10 through the elastic member 213, the switching plate 22 is continuously fitted against the gas delivery mechanism 10 under the drive of the elastic force, avoiding gaps between the switching mechanism 20 and the gas delivery mechanism 10, which could lead to gas leakage.

[0044] Furthermore, such as Figure 4As shown, in order to adjust the switching interval, the switching plate 22 is provided with a guiding space 221 that connects the air inlet channel 11 and the first air delivery channel 12. The guiding space 221 is an arc-shaped groove. Gas can enter the guiding space 221 from the air inlet channel 11 and then be input into the first air delivery channel 12 from the guiding space 221. This enables the switching plate 22 to connect the air inlet channel 11 and the first air delivery channel 12, thus connecting the air path. When the air inlet channel 11 and the first air delivery channel 12 are not simultaneously connected to the guiding space 221, the connection between the air inlet channel 11 and the first air delivery channel 12 is interrupted, and the air path is terminated. In use, by controlling the curvature of the guiding space 221, the connection time between the air inlet channel 11 and the first air delivery channel 12 can be effectively controlled, thereby adjusting the switching interval.

[0045] Furthermore, in order to improve the commissioning efficiency of the gas path switching device 100, such as Figure 2 As shown, a reference mark 141 is provided on the side wall of the first back plate 14, such as... Figure 4 As shown, the side wall of the switching plate 22 is provided with a connection mark 222 and a disconnection mark 223. When the air inlet channel 11 is connected to the first air delivery channel 12, the reference mark 141 corresponds to the connection mark 222. When the air inlet channel 11 is disconnected from the first air delivery channel 12, the reference mark 141 corresponds to the disconnection mark 223. By having the reference mark 141 correspond to the connection mark 222 or the disconnection mark 223, the installer can refer to the connection status between the air inlet channel 11 and the first air delivery channel 12, thereby improving the debugging efficiency of the air circuit switching device 100.

[0046] The beneficial effects of the pneumatic path switching device 100 of the present invention are as follows: by using the actuator 30 to control the switching frequency of the pneumatic path by rotating the speed, it is beneficial to replace the solenoid valve to realize the switching of the output frequency of the pneumatic path, so that the pneumatic path can achieve different output frequency switching at different speeds. It can effectively match the cycle of the pneumatic component with the paper feeding frequency by rotating the speed, so that when the paper feeding frequency changes, the cycle of the pneumatic component also changes accordingly, thereby improving the adjustment convenience of the pneumatic component.

[0047] The gas path switching device 100 of the present invention, during operation, fixes the air inlet plate 13 of the gas delivery mechanism 10, and then the actuator 30 drives the adapter plate 211 to rotate. The adapter plate 211 drives the switching plate 22 to rotate relative to the first back plate 14. When the air guide space 221 on the switching plate 22 connects the air inlet channel 11 with the first air outlet 122 of the first gas delivery channel 12, the gas can flow sequentially through the air inlet section 111 of the air inlet channel 11 and the first air outlet 112. The air enters through the first air outlet 122 of the first air supply channel 12, and then passes through the second air outlet section 123 before being output from the first air outlet section 121. This enables the switching plate 22 to connect the air inlet channel 11 and the first air supply channel 12. At this time, the air path is connected. When the air guide space 221 is not simultaneously connected to the first air inlet 112 of the air inlet channel 11 and the first air outlet 122 of the first air supply channel 12, the air inlet channel 11 and the first air supply channel 12 are disconnected, and the air path is terminated.

[0048] Example 2

[0049] like Figures 5 to 6 As shown, in this embodiment, unlike Embodiment 1, to improve the economic efficiency of the gas path switching device 100, the gas delivery mechanism 10 further includes a second back plate 15 and a second gas delivery channel (not shown) passing through the second back plate 15. Understandably, the second gas delivery channel has the same structure as the first gas delivery channel 12. The air inlet channel 11 passes through the second back plate 15. There are two switching mechanisms 20, each connected to the actuator 30. One switching mechanism 20 is attached to the first back plate 14, and the other switching mechanism 20 is attached to the second back plate 15. By using two second back plates 15 and two switching mechanisms 20, when adding pneumatic components, only the second back plate 15 and the switching mechanism 20 need to be added, avoiding the need for an additional gas delivery mechanism 10, thus achieving the goal of improving the economic efficiency of the gas path switching device 100.

[0050] Specifically, such as Figure 7 As shown, the air intake channel 11 includes an air intake section 111, a first air intake hole 112 and a second air intake hole 113. The air intake section 111 is T-shaped and is located on the air intake plate 13. The first air intake hole 112 and the second air intake hole 113 are both connected to the air intake section 111. The first air intake hole 112 is located on the first back plate 14 and the second air intake hole 113 is located on the second back plate 15.

[0051] Example 3

[0052] like Figure 8As shown, in this embodiment, unlike Embodiments 1 and 2, to facilitate the adjustment of multiple pneumatic components simultaneously, there are multiple air delivery mechanisms 10, and the number of switching mechanisms 20 is the same as the number of air delivery mechanisms 10. The actuator 30 is a rotating shaft that passes through each air delivery mechanism 10 and switching mechanism 20, and is connected to each switching mechanism 20. By using the actuator 30 to drive each switching mechanism 20 to rotate synchronously, it is beneficial for the actuator 30 to control the output frequency of each air delivery mechanism 10 to remain consistent, thereby achieving the purpose of facilitating the adjustment of multiple pneumatic components simultaneously.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An air path switching device characterized by comprising: The utility model provides a gas conveying mechanism, switching mechanism and actuating piece, the gas conveying mechanism is equipped with the air inlet channel and first gas conveying channel, the switching mechanism is arranged to the gas conveying mechanism, the actuating piece is connected with the switching mechanism, is used for driving the switching mechanism rotates relative to the gas conveying mechanism to make the switching mechanism between the air inlet channel and first gas conveying channel conduction, or the air inlet channel and first gas conveying channel are cut off, the switching mechanism includes adapter assembly and switching board, the adapter assembly is connected with the actuating piece, and the switching board is driven and is attached with the gas conveying mechanism, and the switching board is conducted or cut off between the air inlet channel and first gas conveying channel, the switching board is equipped with the air guide space of the air inlet channel and first gas conveying channel conduction, and the air guide space is arc groove, the gas conveying mechanism includes the air inlet board and the first backboard of connecting air inlet board, and the air inlet channel and first gas conveying channel all are equipped with first backboard, and the first backboard is attached with the switching mechanism, the first gas conveying channel includes first air outlet section and first air outlet hole, and the first air outlet section is arranged on the air inlet board, and the first air outlet hole is arranged on the first backboard, the first gas conveying channel still includes the second air outlet section of intercommunication first air outlet section, and the second air outlet section is arc shape and is arranged on the air inlet board, and the number of first air outlet hole is multiple, and each first air outlet hole is communicated with the second air outlet section, the adapter assembly includes adapter board, guide and elastic piece, the adapter board is connected with the actuating piece, the guide is installed on the adapter board and is slidably connected with the switching board, and the elastic piece is arranged between the adapter board and the switching board to drive the switching board and the gas conveying mechanism is attached, the gas conveying mechanism still includes the second backboard and second gas conveying channel equipped with second backboard, and the air inlet channel is equipped with second backboard, and the number of switching mechanism is two, and each switching mechanism is connected with the actuating piece, and one switching mechanism is attached with the first backboard, and the other switching mechanism is attached with the second backboard, the air inlet channel includes air inlet section, first air inlet hole and second air inlet hole, and the air inlet section is arranged on the air inlet board, and the first air inlet hole and second air inlet hole are communicated with the air inlet section, and the first air inlet hole is arranged on the first backboard, and the second air inlet hole is arranged on the second backboard, the number of gas conveying mechanism is multiple, and the number of switching mechanism is same with the number of gas conveying mechanism, and the actuating piece is pivot and is connected with each switching mechanism. ​ ​ ​ ​ ​ ​ 2. The gas passage switching device according to claim 1, wherein ​ 3. The gas passage switching device according to claim 1, wherein ​ 4. The gas passage switching device according to claim 3, wherein ​ 5. The gas passage switching device according to claim 1, wherein ​

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