Printing industry concentrated vacuum system based on permanent magnet frequency conversion

Abstract

The utility model relates to the field of vacuum, discloses a printing industry concentrated vacuum system based on permanent magnet frequency conversion, and solves the problems that when an existing vacuum pump detects that output air pressure cannot reach the standard, the output air pressure is generally increased by adopting a current increasing mode, but sometimes, the output air pressure cannot reach the standard because the input end is blocked, and the output air pressure cannot reach the standard. The printing industry concentrated vacuum system based on permanent magnet frequency conversion comprises a motor, a frequency converter electrically connected to the outer side of the motor, a controller electrically connected to the outer side of the frequency converter, and a rotating shaft fixedly connected to the output end of the motor. And by arranging a pushing mechanism and an elastic mechanism, the pushing mechanism and the elastic mechanism can be driven to clean the air inlet after the first detection is completed, so that the purpose of preventing the rotating blades from being damaged due to forced suction of impurities is achieved.

Description

Technical Field

[0001] The utility model relates to the field of vacuum, in particular to a centralized vacuum system for the printing industry based on permanent magnet frequency conversion. Background Technique

[0002] A centralized vacuum system for the printing industry based on permanent magnet frequency conversion is a vacuum system that combines a permanent magnet motor and frequency conversion technology, aiming to improve the production efficiency and energy-saving effect of the printing industry. It mainly includes a permanent magnet frequency conversion motor, a vacuum pump, and a control system.

[0003] The publication number is CN218325280U, which discloses a stable liquid ring vacuum pump, belonging to the field of liquid ring vacuum pumps. It includes a pump body, an output pipe is installed at the end of the pump body, and a support frame is fixedly connected to the bottom surface of the pump body. A guide groove is opened on the side wall of the support frame, and a connection plate is fixedly connected to the outer surface of the pump body. A first fixing block is fixedly connected to the side wall of the connection plate. When the existing vacuum pump detects that the output air pressure does not meet the standard, it generally increases the output air pressure by increasing the current. However, sometimes the output air pressure does not meet the standard because the input end is blocked. Forcibly increasing the current will cause the blocked object to enter the interior of the vacuum pump and damage the vacuum pump. Content of the Utility Model

[0004] The purpose of the utility model is to provide a centralized vacuum system for the printing industry based on permanent magnet frequency conversion. By using this device to work, it solves the problem that when the existing vacuum pump detects that the output air pressure does not meet the standard, it generally increases the output air pressure by increasing the current. However, sometimes the output air pressure does not meet the standard because the input end is blocked. Forcibly increasing the current will cause the blocked object to enter the interior of the vacuum pump and damage the vacuum pump.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A centralized vacuum system for the printing industry based on permanent magnet frequency conversion includes a motor, a frequency converter electrically connected to the outside of the motor, a controller electrically connected to the outside of the frequency converter, a rotating shaft fixedly connected to the output end of the motor, a rotating blade fixedly connected to the other end of the rotating shaft, a pushing mechanism is arranged on one side of the rotating shaft, and an elastic mechanism is arranged on one side of the pushing mechanism;

[0006] The driving mechanism includes a housing arranged outside the rotating shaft. An air inlet is arranged inside one side of the housing, and an air outlet is arranged inside the other side of the housing. A pressure sensor is arranged inside the air outlet. A cylinder is fixedly connected to the outside of one end of the housing away from the air outlet. The output end of the cylinder is fixedly connected to a first air rod. The inner upper surface of the housing communicates with a guide groove. A first sliding hole is arranged inside the first air rod. A first sliding block is arranged inside the first sliding hole. One end of the first sliding block close to the air outlet is fixedly connected to a first support plate. A guide rod is arranged inside the guide groove, and the guide rod is fixedly connected to the first support plate.

[0007] Preferably, the outer structural shape of the guide groove at the end close to the cylinder is a horizontal straight line shape, and the outer structural shape of the guide groove at the end away from the cylinder is an inclined straight line shape.

[0008] Preferably, the cooperation mode between the guide groove and the guide rod is clearance fit.

[0009] Preferably, the width of one end of the first sliding block close to the cylinder is greater than the width of the end of the first sliding block away from the cylinder, and the outer side surface of the first sliding block fits with the inner side of the first sliding hole.

[0010] Preferably, a sliding groove is arranged inside the middle of the first support plate. The elastic mechanism includes a second sliding block arranged inside the sliding groove. Springs are fixedly connected to both ends of the second sliding block. The springs are fixedly connected to the first support plate. A second sliding hole is arranged inside one end of the first support plate close to the air outlet. A third sliding block is arranged inside the second sliding hole. A baffle is fixedly connected to the other end of the third sliding block. One end of the second sliding block is fixedly connected to a second support plate, and the other end of the second support plate is fixedly connected to a push rod.

[0011] Preferably, the width of the sliding groove at the end close to the center of the first support plate is greater than the width of the end of the sliding groove away from the center of the first support plate.

[0012] Preferably, the width of the second sliding hole at the end close to the air outlet is greater than the width of the end of the second sliding hole away from the air outlet.

[0013] Preferably, both side surfaces of the baffle at the end close to the cylinder are inclined surfaces.

[0014] A centralized vacuum system for the printing industry based on permanent magnet frequency conversion proposed by the present utility model, by arranging a driving mechanism and an elastic mechanism, enables the driving mechanism and the elastic mechanism to clean the air inlet after the first detection is completed. Compared with the prior art, impurities inside the air inlet are cleaned down, thereby achieving the purpose of avoiding damage to the rotating blades caused by forced inhalation of impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic system flow diagram of the present utility model;

[0016] Figure 2 This is a schematic diagram of the external structure of the motor of the present utility model;

[0017] Figure 3 This is a schematic diagram of the left-sectional structure of the outer shell of the present utility model;

[0018] Figure 4 This is a schematic diagram of the front-sectional structure of the outer shell of the present utility model;

[0019] Figure 5 This is a schematic diagram of the upward view structure of the guide groove of the present utility model.

[0020] In the figure: 1. Motor; 2. Frequency converter; 3. Controller; 4. Rotating shaft; 5. Pushing mechanism; 6. Elastic mechanism; 8. Rotating blade; 501. Outer shell; 502. Air inlet; 503. Air outlet; 505. Pressure sensor; 504. Cylinder; 506. First air rod; 507. Guide groove; 508. First sliding hole; 509. First slider; 510. First support plate; 511. Guide rod; 7. Sliding groove; 601. Second slider; 602. Spring; 603. Second sliding hole; 604. Third slider; 605. Baffle; 606. Second support plate; 607. Thrust rod. Specific implementation scheme

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1 - 5 , the present utility model provides a technical solution: A centralized vacuum system for the printing industry based on permanent magnet frequency conversion, including a motor 1, a frequency converter 2 electrically connected to the outside of the motor 1, a controller 3 electrically connected to the outside of the frequency converter 2, a rotating shaft 4 fixedly connected to the output end of the motor 1, a rotating blade 8 fixedly connected to the other end of the rotating shaft 4, a pushing mechanism 5 arranged on one side of the rotating shaft 4, and an elastic mechanism 6 arranged on one side of the pushing mechanism 5;

[0023] The driving mechanism 5 includes a housing 501 arranged outside the rotating shaft 4. An air inlet 502 is arranged inside one side of the housing 501, and an air outlet 503 is arranged inside the other side of the housing 501. A pressure sensor 505 is arranged inside the air outlet 503. A cylinder 504 is fixedly connected to the outer side of one end of the housing 501 away from the air outlet 503. The output end of the cylinder 504 is fixedly connected to a first air rod 506. The inner upper surface of the housing 501 is communicated with a guiding groove 507. The external structure shape of the guiding groove 507 near the cylinder 504 is a horizontal straight line shape, and the external structure shape of the guiding groove 507 away from the cylinder 504 is an inclined straight line shape. The cooperation mode between the guiding groove 507 and the guiding rod 511 is clearance fit. When the guiding rod 511 moves inside the horizontal straight groove of the guiding groove 507, the guiding rod 511 will not move horizontally. When the guiding rod 511 moves inside the inclined straight line shape of the guiding groove 507, the guiding rod 511 will move horizontally. A first sliding hole 508 is arranged inside the first air rod 506. A first sliding block 509 is arranged inside the first sliding hole 508. A first support plate 510 is fixedly connected to one end of the first sliding block 509 close to the air outlet 503. A guiding rod 511 is arranged inside the guiding groove 507. The connection mode between the guiding rod 511 and the first support plate 510 is fixed connection. The width of the first sliding block 509 at one end close to the cylinder 504 is greater than the width of the first sliding block 509 at one end away from the cylinder 504, and the outer side surface of the first sliding block 509 fits with the inner side of the first sliding hole 508, so that the first sliding block 509 will not shake when moving inside the first sliding hole 508, and the first sliding block 509 will not move beyond the control range of the first sliding hole 508.

[0024] A chute 7 is provided inside the middle of the first support plate 510. The elastic mechanism 6 includes a second slider 601 disposed inside the chute 7. The width of the chute 7 at one end close to the center of the first support plate 510 is greater than the width of the chute 7 at the end far from the center of the first support plate 510, so that the second slider 601 will not move out of the inside of the chute 7 when sliding inside the chute 7. Springs 602 are fixedly connected to both ends of the second slider 601. The connection mode between the springs 602 and the first support plate 510 is fixed connection. A second sliding hole 603 is provided inside the first support plate 510 at one end close to the air outlet 503. A third slider 604 is disposed inside the second sliding hole 603. A baffle 605 is fixedly connected to the other end of the third slider 604. The width of the second sliding hole 603 at one end close to the air outlet 503 is greater than the width of the second sliding hole 603 at the end far from the air outlet 503, so that the third slider 604 will not move out of the inside of the second sliding hole 603. Both side surfaces of the baffle 605 close to one end of the cylinder 504 are inclined surfaces, so that the baffle 605 can be pushed and straightened along its hypotenuse after contacting the edge of the housing 501. One end of the second slider 601 is fixedly connected to a second support plate 606, and the other end of the second support plate 606 is fixedly connected to a push rod 607.

[0025] Start the controller 3 to drive the frequency converter 2 and the motor 1 to operate, so that the rotating blade 8 starts to operate. The pressure sensor 505 detects whether the air pressure reaches the standard after a certain period of time. When the air pressure reaches the standard, the motor 1 operates normally. When the air pressure does not reach the standard, the motor 1 stops, and the cylinder 504 starts to drive the first air rod 506 to move horizontally, so that the first slider 509 and the first support plate 510 move horizontally, driving the guide rod 511 to move inside the guide groove 507. Since the external structure shape of the guide groove 507 at one end close to the cylinder 504 is a horizontal straight line, and the external structure shape of the guide groove 507 at the end far from the cylinder 504 is an inclined straight line, when the guide rod 511 moves into the guide groove 507, it drives the second slider 601, the second support plate 606 and the push rod 607 to enter towards the air inlet 502, cleaning the impurities inside the air inlet 502, pulling the starting cylinder 504 to reset, and starting the motor 1 again. The pressure sensor 505 continues to detect whether the air pressure reaches the standard after a certain period of time. If it still does not reach the standard, the frequency converter 2 increases the current, so that the motor 1 has a higher speed, avoiding blindly increasing the current and forcibly sucking in impurities to damage the rotating blade 8.

[0026] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A centralized vacuum system for the printing industry based on permanent magnet frequency conversion, comprising a motor (1), a frequency converter (2) electrically connected to the outside of the motor (1), a controller (3) electrically connected to the outside of the frequency converter (2), a rotating shaft (4) fixedly connected to the output end of the motor (1), and a rotating blade (8) fixedly connected to the other end of the rotating shaft (4), characterized in that: A pushing mechanism (5) is provided on one side of the rotating shaft (4), and an elastic mechanism (6) is provided on one side of the pushing mechanism (5); The pushing mechanism (5) comprises a shell (501) arranged on the outside of the rotating shaft (4); an air inlet (502) is arranged inside one side of the shell (501); an air outlet (503) is arranged inside the other side of the shell (501); a pressure sensor (505) is arranged inside the air outlet (503); a cylinder (504) is fixedly connected to the outside of one end of the shell (501) away from the air outlet (503); and a first air rod (506) is fixedly connected to the output end of the cylinder (504). The inner upper surface of the shell (501) is connected to a guide groove (507), the inner side of the first gas rod (506) is provided with a first sliding hole (508), the inner side of the first sliding hole (508) is provided with a first sliding block (509), one end of the first sliding block (509) close to the gas outlet (503) is fixedly connected to a first support plate (510), the inner side of the guide groove (507) is provided with a guide rod (511), and the guide rod (511) and the first support plate (510) are connected in a fixed manner.

2. According to claim 1, a centralized vacuum system for the printing industry based on permanent magnet frequency conversion is characterized in that: The appearance structure shape of the guide groove (507) at one end close to the cylinder (504) is a horizontal straight line, and the appearance structure shape of the guide groove (507) at one end away from the cylinder (504) is an inclined straight line.

3. According to claim 1, a centralized vacuum system for the printing industry based on permanent magnet frequency conversion is characterized in that: The guide groove (507) and the guide rod (511) are matched in a clearance fit.

4. The centralized vacuum system for the printing industry based on permanent magnet frequency conversion according to claim 1 is characterized in that: The width of the first slider (509) at one end close to the cylinder (504) is greater than the width of the first slider (509) at one end away from the cylinder (504), and the outer side surface of the first slider (509) fits the inner side of the first sliding hole (508).

5. The centralized vacuum system for the printing industry based on permanent magnet frequency conversion according to claim 1 is characterized in that: A sliding groove (7) is arranged in the middle of the first support plate (510), the elastic mechanism (6) comprises a second slider (601) arranged inside the sliding groove (7), both ends of the second slider (601) are fixedly connected with springs (602), the spring (602) and the first support plate (510) are connected in a fixed manner, a second sliding hole (603) is arranged inside one end of the first support plate (510) close to the air outlet (503), a third slider (604) is arranged inside the second sliding hole (603), the other end of the third slider (604) is fixedly connected with a baffle (605), one end of the second slider (601) is fixedly connected with the second support plate (606), and the other end of the second support plate (606) is fixedly connected with a push rod (607).

6. The centralized vacuum system for the printing industry based on permanent magnet frequency conversion according to claim 5 is characterized in that: The width of the slide groove (7) at one end close to the center of the first support plate (510) is greater than the width of the slide groove (7) at one end away from the center of the first support plate (510).

7. The centralized vacuum system for the printing industry based on permanent magnet frequency conversion according to claim 5 is characterized in that: The width of the second sliding hole (603) at one end close to the air outlet (503) is greater than the width of the second sliding hole (603) at one end away from the air outlet (503).

8. The centralized vacuum system for the printing industry based on permanent magnet frequency conversion according to claim 5 is characterized in that: Both side surfaces of the baffle (605) close to one end of the cylinder (504) are inclined surfaces.

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