Rapid positive and negative pressure gas conversion device

Abstract

The utility model relates to a positive and negative pressure gas quick conversion device which comprises a machine body, a transmission shaft rotationally arranged on the machine body and a conversion mechanism coaxially arranged with the transmission shaft, and the conversion mechanism comprises a fixed gas distribution disc fixed to the machine body and a rotary gas distribution piece connected with the transmission shaft. Negative pressure through holes and conversion through holes are formed in the fixed gas distribution disc in the circumferential direction of the axis at intervals, negative pressure gas distribution grooves are formed in the rotary gas distribution piece in the circumferential direction of the axis, and the transmission shaft drives the rotary gas distribution piece to rotate, so that the negative pressure gas distribution grooves are sequentially communicated with the negative pressure through holes and the conversion through holes. When the transmission shaft drives the rotary gas distribution piece to rotate, the negative-pressure gas distribution groove can sequentially communicate with the negative-pressure through hole and the conversion through hole, so that rapid conversion of positive-pressure gas and negative-pressure gas is achieved, the gas conversion time is shortened, and the working efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of positive and negative pressure gas distribution, and particularly to a device for rapid conversion of positive and negative pressure gases. Background Art

[0002] After the cigarette case is produced, it is necessary to detect the cigarettes inside the case. During the detection, the cigarette case is opened, and then the aluminum foil inside the case is adsorbed to facilitate the subsequent detection work on the cigarettes inside the case.

[0003] Currently, the adsorption machine includes a machine body and a negative pressure gas device installed on one side of the machine body. The negative pressure gas device is connected to the suction cup of the air pipe, and the suction cup is used to adsorb the aluminum foil inside the cigarette case. Since it is a negative pressure gas device, when the suction cup puts down the aluminum foil, the negative pressure gas device is stopped. After the outside air enters the negative pressure gas device, the negative pressure state is eliminated, and thus the suction cup releases the aluminum foil, causing the aluminum foil to slowly cover the cigarettes.

[0004] In view of the above technology, a device for rapid conversion of positive and negative pressure gases is provided herein. Utility Model Content

[0005] In order to achieve rapid conversion of positive and negative pressure gases, the present application provides a device for rapid conversion of positive and negative pressure gases.

[0006] The device for rapid conversion of positive and negative pressure gases provided by the present application adopts the following technical solutions:

[0007] A device for rapid conversion of positive and negative pressure gases includes a machine body, a transmission shaft rotatably provided on the machine body, and a conversion mechanism arranged coaxially with the transmission shaft. The conversion mechanism includes a fixed gas distribution plate fixed to the machine body and a rotating gas distribution piece connected to the transmission shaft. The fixed gas distribution plate is circumferentially provided with a negative pressure through hole and a conversion through hole at intervals along the axis. The rotating gas distribution piece is circumferentially provided with a negative pressure gas distribution groove along the axis. The transmission shaft drives the rotating gas distribution piece to rotate, so that the negative pressure gas distribution groove sequentially communicates with the negative pressure through hole and the conversion through hole.

[0008] By adopting the above technical solutions, the device realizes the rapid switching between the negative pressure through hole and the conversion through hole through the cooperation of the rotating gas distribution piece and the fixed gas distribution plate. When the transmission shaft drives the rotating gas distribution piece to rotate, the negative pressure gas distribution groove sequentially communicates with the negative pressure through hole and the conversion through hole, thereby realizing the rapid conversion of positive and negative pressure gases. The above design shortens the gas conversion time and improves the work efficiency.

[0009] Optionally, the fixed gas distribution plate is provided with a negative pressure joint and a conversion joint respectively communicating with the negative pressure through hole and the conversion through hole. The fixed gas distribution plate is further provided with a positive pressure through hole for pressure relief, and a positive pressure joint is provided at the positive pressure through hole of the fixed gas distribution plate.

[0010] By adopting the above technical solution, a negative pressure joint and a conversion joint are provided on the fixed air distribution plate, which are respectively connected to the negative pressure through hole and the conversion through hole, making it more convenient and rapid to connect the device to an external air pipe or air source, improving the convenience and flexibility of the device; and the setting of the negative pressure joint and the conversion joint makes the gas flow more smoothly in the device, reducing the resistance and time delay during gas conversion and pressure relief, thereby improving the efficiency of gas treatment.

[0011] Optionally, the positive pressure through hole includes a first through hole and a second through hole along the radial direction, and the first through hole, the negative pressure through hole and the conversion through hole are all located on the same arc.

[0012] By adopting the above technical solution, the positive pressure through hole includes a first through hole and a second through hole along the radial direction, and the first through hole is located on the same arc as the negative pressure through hole and the conversion through hole. This layout optimizes the gas flow path in the device, ensuring that the positive pressure gas can enter and leave the fixed air distribution plate smoothly, reducing the flow resistance and pressure loss.

[0013] Optionally, the second through hole is located outside the first through hole, and a positive pressure gas distribution groove for communicating with the second through hole is provided on the rotating air distribution piece.

[0014] By adopting the above technical solution, the second through hole is located outside the first through hole and cooperates with the positive pressure gas distribution groove on the rotating air distribution piece to achieve effective distribution of the positive pressure gas. When the rotating air distribution piece rotates, the positive pressure gas distribution groove can be sequentially communicated with the second through hole, ensuring that the positive pressure gas can be evenly distributed to the required parts or channels.

[0015] Optionally, a ventilation hole communicating with the outside atmosphere is provided on the rotating air distribution piece, and the ventilation hole and the negative pressure gas distribution groove are concentric circles and correspond to the positive pressure gas distribution groove.

[0016] By adopting the above technical solution, the design of the ventilation hole communicating with the outside atmosphere provided on the rotating air distribution piece and the concentric circle design of the negative pressure gas distribution groove enable the gas in the positive pressure gas distribution groove to be discharged to the outside through the ventilation hole when the communication hole corresponds to the first through hole.

[0017] Optionally, a pressing component for pressing the fixed air distribution plate is further provided on the side of the rotating air distribution piece away from the fixed air distribution plate, and the pressing component is locked and fixed to the transmission shaft.

[0018] By adopting the above technical solution, the design of the pressing component helps to form a closer contact between the rotating air distribution piece and the fixed air distribution plate, thereby enhancing the sealing performance between them. This helps to prevent gas leakage and ensure the stability and reliability of the conversion process.

[0019] Optionally, the clamping assembly includes a locking member, a spring and a gasket in sequence along the axis, and the gasket is pressed against the rotating air dividing plate by the spring.

[0020] By adopting the above technical solution, the gasket can be tightly abutted against the rotating gas separator by the elastic force of the spring to form an effective seal. This dynamic sealing mechanism can ensure that the sealing performance can be maintained when the rotating gas separator rotates at high speed or is vibrated to prevent gas leakage, thereby ensuring the efficiency and accuracy of positive and negative pressure gas conversion.

[0021] Optionally, a plurality of positioning grooves for positioning the spring are circumferentially formed on an end surface of the gasket away from the rotating air dividing plate.

[0022] By adopting the above technical solution, the presence of the positioning groove provides a precise positioning point for the spring, making the assembly and replacement of the spring easier and quicker, and enables the spring to remain evenly and stably distributed when under force, thereby ensuring that the gasket can be evenly and tightly abutted against the rotating air divider. The precise positioning mechanism helps to enhance the sealing effect.

[0023] Optionally, a fixing flange is further provided on the machine body, a positioning block is provided on the end face of the fixing flange, and the fixed gas distribution plate has a mounting port plugged into the positioning block.

[0024] By adopting the above technical solution, the fixed gas distributor and the fixed flange are plugged into the mounting opening through the positioning block, thereby realizing the rapid installation and positioning of the fixed gas distributor on the machine body. This design simplifies the installation process, improves assembly efficiency, and helps to enhance the connection strength between the fixed gas distributor and the machine body, thereby improving the structural stability of the entire device.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. A positive and negative pressure gas rapid conversion device realizes rapid switching between negative pressure through holes and conversion through holes through the cooperation of a rotating gas distributor and a fixed gas distributor. When the transmission shaft drives the rotating gas distributor to rotate, the negative pressure gas distribution groove is connected with the negative pressure through hole and the conversion through hole in turn, thereby realizing rapid conversion of positive and negative pressure gas. This design greatly shortens the gas conversion time and improves work efficiency.

[0027] 2. The rotating air blade is provided with a vent hole connected to the outside atmosphere, and the vent hole and the negative pressure air distribution groove are co-circular and correspond to the positive pressure air distribution groove. The vent hole connected to the outside atmosphere and the negative pressure air distribution groove on the rotating air blade are designed to be co-circular, which helps to form a stable and efficient air flow path. This design may enhance the uniform distribution of airflow on the rotating air blade, improve the efficiency of air flow, and thus optimize the performance of the overall system.

[0028] 3. The pressing component sequentially includes a locking member, a spring, and a gasket along the axis. The gasket is pressed against the rotating air distributor by the spring. In the above structure, due to the elastic force of the spring, the gasket can be closely pressed against the rotating air distributor to form an effective seal. This dynamic sealing mechanism can ensure that the sealing performance is maintained even when the rotating air distributor rotates at a high speed or is vibrated, preventing gas leakage, thereby ensuring the efficiency and accuracy of the positive and negative pressure gas conversion. Description of the Drawings

[0029] Figure 1 is a schematic diagram of the overall structure of the positive and negative pressure gas rapid conversion device.

[0030] Figure 2 is an exploded view of the positive and negative pressure gas rapid conversion device.

[0031] Figure 3 is a perspective view of the fixed air distributor of the positive and negative pressure gas rapid conversion device.

[0032] Figure 4 is a perspective view of the rotating air distributor of the positive and negative pressure gas rapid conversion device.

[0033] Figure 5 is an exploded structural schematic diagram of the pressing component of the positive and negative pressure gas rapid conversion device.

[0034] Description of the Reference Numerals: 1. Body; 2. Transmission Shaft; 3. Conversion Mechanism; 31. Fixed Air Distributor; 311. Installation Port; 312. Negative Pressure Through Hole; 313. Conversion Through Hole; 314. Positive Pressure Through Hole; 3141. First Through Hole; 3142. Second Through Hole; 32. Rotating Air Distributor; 321. Negative Pressure Distribution Groove; 322. Positive Pressure Distribution Groove; 323. Interleaved Section; 324. Vent Hole; 33. Negative Pressure Connector; 34. Conversion Connector; 35. Positive Pressure Connector; 4. Pressing Component; 41. Locking Member; 411. Communication Hole; 42. Spring; 43. Gasket; 431. Positioning Groove; 5. Fixed Flange; 51. Positioning Block. Detailed Embodiment

[0035] The following further describes the present application in detail Figures 1-5 in conjunction with the attached drawings.

[0036] The embodiment of the present application discloses a positive and negative pressure gas rapid conversion device. Referring to Figure 1 , a positive and negative pressure gas rapid conversion device includes a body 1, a transmission shaft 2 rotatably arranged on one side of the body 1, a conversion mechanism 3 coaxially arranged with the transmission shaft 2, and a pressing component 4 for pressing the conversion mechanism 3. The conversion mechanism 3 is connected to the body 1 through a fixed flange 5. The fixed flange 5 is fixedly connected to the body 1 by screws, and the pressing component 4 is coaxially fixedly connected to the transmission shaft 2.

[0037] Reference Figure 1 The conversion mechanism 3 includes a fixed air distributor 31 which is limitedly matched with the fixed flange 5 and a rotating air distributor 32 which is arranged on the side of the fixed air distributor 31 away from the machine body 1. The fixed air distributor 31 and the rotating air distributor 32 are both sleeved on the transmission shaft 2.

[0038] Reference Figure 1 The fixed air distributor 31 has a mounting opening 311 on the side facing the fixed flange 5. The mounting opening 311 is radially opened from the edge of the fixed air distributor 31. A positioning block 51 is integrally provided on the end surface of the fixed flange 5 and is plugged into the mounting opening 311. The positioning block 51 is cylindrical. The fixed air distributor 31 and the machine body 1 are fixed in position by the cooperation of the mounting opening 311 and the positioning block 51. Therefore, when the transmission shaft 2 rotates, the pressing assembly 4 and the rotating air plate rotate, and the fixed air distributor 31 is relatively stationary.

[0039] Reference Figure 1 and Figure 2 The fixed gas distributor 31 has a negative pressure through hole 312, a conversion through hole 313 and a positive pressure through hole 314 along the axis circumference on one side of the end surface facing away from the fixed flange 5. The conversion through hole 313 is located between the positive pressure through hole 314 and the negative pressure through hole 312.

[0040] The fixed gas distribution plate 31 has a through groove connecting the three through holes and penetrating the side wall thereof. The outer wall of the fixed gas distribution plate 31 is provided with a negative pressure joint 33 connecting the negative pressure through hole 312, a conversion joint 34 connecting the conversion through hole 313, and a positive pressure joint 35 connecting the positive pressure through hole 314. Among them, the negative pressure joint 33 is an air suction joint, and the conversion joint 34 and the positive pressure joint 35 are air blowing joints.

[0041] Reference Figure 4 , the rotating air distribution plate 32 is provided with a negative pressure air distribution groove 321 and a positive pressure air distribution groove 322 along the circumference of the axis. Both the negative pressure air distribution groove 321 and the positive pressure air distribution groove 322 are arc-shaped grooves, and the negative pressure air distribution groove 321 is located on the inner side of the positive pressure air distribution groove 322. The arc of the negative pressure air distribution groove 321 is less than 180°, and the arc of the positive pressure air distribution groove 322 is greater than 180°. There is an interlaced section 323 at the end of the negative pressure air distribution groove 321 and the positive pressure air distribution groove 322 in the radial position. When the transmission shaft 2 drives the rotating air distribution plate 32 to rotate, the negative pressure air distribution groove 321 is connected with the negative pressure through hole 312, the conversion through hole 313 and the positive pressure through hole 314 in sequence.

[0042] Reference Figure 2 and Figure 3, the positive pressure through-hole 314 includes a first through-hole 3141 and a second through-hole 3142, and the two through-holes are arranged at intervals in the radial direction. The first through-hole 3141 is used to communicate with the negative pressure air distribution groove 321, and the second through-hole 3142 is used to communicate with the positive pressure air distribution groove 322. Among them, an air vent 324 is also provided on the rotary air distribution piece 32. The air vent 324 is concentric with the negative pressure air distribution groove 321, and the air vent 324 corresponds to the positive pressure air distribution groove 322 in the radial direction.

[0043] Referring to Figure 5 , the pressing assembly 4 is entirely located on the side of the rotary air distribution piece 32 away from the fixed air distribution disc 31, and it sequentially includes a locking member 41, a spring 42, and a gasket 43 along the axis.

[0044] The gasket 43 is attached to the end face of the rotary air distribution piece 32. A positioning groove 431 for positioning and placing the spring 42 is circumferentially provided on the end face of the gasket 43 facing away from the rotary air distribution piece 32, and the number of the positioning grooves 431 can be set according to the situation. In this embodiment, three positioning grooves 431 are arranged at intervals. The two ends of the spring 42 respectively abut against the bottom wall of the positioning groove 431 and the end face of the locking member 41. The locking member 41 is a clamp in the prior art, and it is locked and fixed to the transmission shaft 2 through a clamping screw.

[0045] Among them, the gasket 43 and the locking member 41 also both have communication holes 411 corresponding to the air vent 324, and the communication holes 411 penetrate through the two end faces of the gasket 43 and the locking member 41, so that the gas in the positive pressure air distribution groove 322 can be transported to the outside atmosphere along the air vent 324 and the communication holes 411.

[0046] The implementation principle of a positive and negative pressure gas rapid conversion device in an embodiment of the present application is as follows: During assembly, the fixed air distribution disc 31, the rotary air distribution piece 32, and the pressing assembly 4 are sequentially sleeved on the transmission shaft 2. The fixed air distribution disc 31 and the fixed flange 5 are in limit fit, the pressing assembly 4 and the transmission shaft 2 are locked and fixed, and the rotary air distribution piece 32 is hermetically attached to the fixed air distribution disc 31.

[0047] When the transmission shaft 2 rotates, the fixed air distribution plate 31 is in a relatively stationary state, and the pressing assembly 4 rotates synchronously with the transmission shaft 2; when the negative pressure air distribution groove 321 is only communicated with the negative pressure through hole 312, the negative pressure joint 33 sucks air, and at this time, the negative pressure air distribution groove is in a negative pressure state; the rotating air distribution piece 32 continues to rotate, so that the negative pressure air distribution groove 321 is simultaneously communicated with the negative pressure through hole 312 and the conversion through hole 313, and the conversion joint 34 blows air to destroy the negative pressure state; the rotating air distribution piece 32 continues to rotate, so that the negative pressure air distribution groove 321 is simultaneously communicated with the conversion through hole 313 and the first through hole 3141, and the air pressure in the negative pressure air distribution groove 321 is greater than the air pressure in the positive pressure air distribution groove 322, so that the gas in the negative pressure air distribution groove 321 is transported to the positive pressure air distribution groove 322 through the first through hole 3141 to achieve balanced pressure relief; the rotating air distribution piece 32 continues to rotate, so that the first through hole 3141 and the ventilation hole 324 are communicated, and the gas in the positive pressure air distribution groove 322 is sequentially released to the atmosphere along the second through hole 3142, the first through hole 3141, the ventilation hole 324 and the communication hole 411.

[0048] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A positive and negative pressure gas rapid conversion device, characterized in that, It includes a machine body (1), a transmission shaft (2) rotatably arranged on the machine body (1), and a conversion mechanism (3) coaxially arranged with the transmission shaft (2). The conversion mechanism (3) includes a fixed air distribution disc (31) fixed to the machine body (1) and a rotating air distribution piece (32) connected to the transmission shaft (2). The fixed air distribution disc (31) is circumferentially spaced along the axis with a negative pressure through hole (312) and a conversion through hole (313). The rotating air distribution piece (32) is circumferentially provided with a negative pressure air distribution groove (321) along the axis. The transmission shaft (2) drives the rotating air distribution piece (32) to rotate, so that the negative pressure air distribution groove (321) sequentially communicates with the negative pressure through hole (312) and the conversion through hole (313).

2. The rapid positive and negative pressure gas conversion device according to claim 1, characterized in that The fixed air distribution disc (31) is provided with a negative pressure joint (33) and a conversion joint (34) respectively communicating with the negative pressure through hole (312) and the conversion through hole (313). The fixed air distribution disc (31) is also provided with a positive pressure through hole (314) for pressure relief, and the fixed air distribution disc (31) is provided with a positive pressure joint (35) at the positive pressure through hole (314).

3. The positive and negative pressure gas rapid conversion device according to claim 2, characterized in that, The positive pressure through hole (314) includes a first through hole (3141) and a second through hole (3142) along the radial direction. The first through hole (3141), the negative pressure through hole (312) and the conversion through hole (313) are all located on the same arc. The fixed air distribution disc (31) is provided with a conversion joint (34) communicating with the positive pressure through hole (314).

4. A positive and negative pressure gas rapid conversion device according to claim 3, characterized in that, The second through hole (3142) is located outside the first through hole (3141), and a positive pressure air distribution groove (322) for communicating with the second through hole (3142) is provided on the rotating air distribution piece (32).

5. A positive and negative pressure gas rapid conversion device according to claim 4, characterized in that, An air vent hole (324) communicating with the outside atmosphere is provided on the rotating air distribution piece, and the air vent hole (324) and the negative pressure air distribution groove (321) are co-circular and correspond to the positive pressure air distribution groove (322).

6. The positive and negative pressure gas rapid conversion device according to claim 1, characterized in that, A pressing assembly (4) for pressing the fixed air distribution disc (31) is further provided on the side of the rotating air distribution piece (32) away from the fixed air distribution disc (31), and the pressing assembly (4) is locked and fixed to the transmission shaft (2).

7. The quick positive and negative pressure gas conversion device according to claim 6, characterized in that, The pressing assembly (4) sequentially includes a locking member (41), a spring (42) and a gasket (43) along the axis. The gasket (43) is pressed and abutted against the rotating air distribution piece (32) through the spring (42).

8. A positive and negative pressure gas rapid conversion device according to claim 7, characterized in that, A plurality of positioning grooves (431) for positioning the spring (42) are circumferentially provided on the end face of the gasket (43) on the side away from the rotating air distribution piece (32).

9. The positive and negative pressure gas rapid conversion device according to claim 1, characterized in that, A fixed flange (5) is further provided on the machine body (1), a positioning block (51) is provided on the end face of the fixed flange (5), and the fixed air distribution disc (31) has a mounting port (311) inserted with the positioning block (51).

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