CN220474680U - Centrifugal two-seal machine convenient for discharging waste liquid - Google Patents

Abstract

The utility model relates to the technical field of battery production equipment, in particular to a centrifugal two-sealing machine convenient for waste liquid discharge, which comprises a lower cavity, an upper cavity, a rotary table rotationally arranged in the lower cavity, one or more puncture air extraction sealing mechanisms arranged on the rotary table, a suction opening and closing control module arranged on the rotary table, a suction butt joint mechanism arranged at the bottom of the lower cavity and a rotation driving mechanism for driving the rotary table to rotate. According to the rotary table, the suction opening and closing control module and the suction butt joint mechanism are detachably butt-jointed, so that the suction butt joint mechanism can be installed on the lower cavity, the suction butt joint mechanism and the suction opening and closing control module are prevented from being installed on the rotary table, the burden of the rotary table is reduced, and the driving force of the rotary driving mechanism is reduced.

Description

Centrifugal two-seal machine convenient for discharging waste liquid

Technical Field

The utility model relates to the technical field of battery production equipment, in particular to a centrifugal two-seal machine convenient for waste liquid discharge.

Background

During the battery production process, the battery needs to be punctured, pumped and packaged. In the prior art, chinese patent document with application number 202122752313.0 discloses a high-speed rotary air extraction packaging device, which comprises a rotary driving mechanism, a rotary table connected with the output end of the rotary driving mechanism, a lower cavity arranged on the rotary table, a lifting driving mechanism arranged on the rotary table, an upper cavity connected with the lifting end of the lifting driving mechanism, a forming packaging jig arranged in the lower cavity and a forming packaging component arranged in the upper cavity, wherein the upper cavity is positioned above the lower cavity, the upper cavity and the lower cavity are clamped to form a sealing cavity, the forming packaging jig is sequentially provided with a main body containing groove, a lower end socket and an air bag part containing groove, the main body containing groove is positioned at the eccentric position of the rotary table, the bottom of the air bag part containing groove is provided with a puncture hole, an air groove communicated with the puncture hole and a vacuum chamber communicated with the puncture hole, the vacuum chamber is communicated with a vacuum extraction device, and the forming packaging component comprises a pressing plate, an upper end socket, a pressing plate and a puncture knife arranged in the upper cavity, and a puncture knife blade arranged in the upper cavity respectively, and is correspondingly connected with the upper knife blade and the upper knife drive head, and the air bag part correspondingly provided with the upper knife head, and the corresponding to the driving head, and the puncture device is arranged correspondingly to the upper knife head, and the upper knife head is correspondingly provided with the main body and the puncture device; the vacuum pumping device comprises a vacuum pump, a communicating piece, an air pipe and a collecting tank, wherein the vacuum pump, the communicating piece, the air pipe and the collecting tank are arranged on the rotary table, the communicating piece is provided with a first air passage and a second air passage, the vacuum pump is communicated with the first air passage through the air pipe, the first air passage is communicated with the second air passage through the collecting tank, and the second air passage is communicated with the vacuum chamber. The patent document discloses that a vacuum-pumping device is mounted on the turntable, and the vacuum-pumping device is continuously communicated with the vacuum chamber to vacuum the vacuum chamber. Because the vacuumizing device needs to be continuously connected with the vacuum chamber, the vacuumizing state is controlled by the opening and closing of the vacuum pump, the vacuumizing device cannot be separated from the vacuum chamber, the whole vacuumizing device needs to be installed on the turntable, and the turntable needs to synchronously rotate together with the whole vacuumizing device when rotating, so that the load of the turntable during rotation is greatly increased, the rotation of the turntable is difficult, and a large rotation driving force is needed. Thus, the drawbacks are quite apparent and there is a need to provide a solution.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide a centrifugal two-seal machine which is convenient for discharging waste liquid.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a centrifugal two-sealing machine convenient to waste liquid, it includes the cavity down, cover the upper cavity that closes in the cavity down with going up and down, rotate the carousel that sets up in the cavity down, install in one or more puncture pumping encapsulation mechanism of carousel, install in the suction of carousel and open and close control module, install in the suction interfacing mechanism of the bottom of cavity down and install in the bottom of cavity down and be used for driving the pivoted rotation actuating mechanism of carousel, puncture pumping encapsulation mechanism and be provided with puncture pumping carrier plate, the suction end of suction opening and closing control module communicates with the vacuum chamber that punctures pumping carrier plate, the butt joint end of suction opening and closing control module stretches into the below of carousel, the butt joint end of suction interfacing mechanism stretches into in the cavity down and is used for with the separable butt joint of the butt joint end of suction opening and closing control module, upper cavity and cavity compound die form sealed chamber.

Further, the suction opening and closing control module comprises a suction box, a control inner core and an elastic piece, wherein the suction box is arranged on the rotary table, a suction cavity is formed in the suction box, a guide hole communicated with the suction cavity is formed in one end of the suction box, a first sealing piece and a second sealing piece are sleeved outside the control inner core at intervals, the control inner core is in sealed sliding connection with the inner wall of the guide hole through the first sealing piece and the second sealing piece, the outer end of the control inner core protrudes to the lower portion of the rotary table and is used for being detachably abutted to the abutting end of the suction opening and closing control module, the elastic piece is arranged in the suction cavity, the inner end face of the control inner core is elastically connected with the suction box through the elastic piece, an air passage is formed in the axial direction of the control inner core, an air hole communicated with the air passage is formed in the radial direction of the control inner core, the air hole is located between the first sealing piece and the second sealing piece, the air passage is used for being communicated with the suction cavity, the abutting end of the control inner core is in a sealing connection with the suction opening and closing control module, a connector communicated with the suction cavity is arranged on the suction box, and the connector is communicated with the suction cavity through an air pipe and a vacuum chamber of an air sucking carrier plate.

Further, the suction butt joint mechanism comprises a suction butt joint pipe and a butt joint driving mechanism, the driving end of the butt joint driving mechanism is connected with the suction butt joint pipe, the suction butt joint pipe penetrates through the bottom of the lower cavity in a sliding mode, and the suction butt joint pipe is used for detachably butt joint with the butt joint end of the suction start-stop control module.

Further, a limiting hole is formed in the joint of the suction cavity and the guide hole, a limiting ring is arranged on the outer side wall of the inner end of the control inner core, and the limiting hole is used for limiting the limiting ring.

Further, the suction docking mechanism further comprises a guide sleeve embedded at the bottom of the lower cavity, and the suction docking pipe penetrates through the guide sleeve in a sliding mode.

Further, one end of the suction butt joint pipe, which is close to the suction opening and closing control module, is sleeved with a butt joint, and the suction butt joint pipe is in butt joint with the suction opening and closing control module through the butt joint.

Further, the number of the connectors is equal to the number of the puncture pumping packaging mechanisms.

Further, the inner end surface of the control inner core and the inner side wall of the suction cavity are both convexly provided with positioning columns, and two ends of the elastic piece are respectively sleeved outside the corresponding positioning columns.

Further, a vacuum-pumping device is arranged outside the upper cavity or/and the lower cavity, and the vacuum-pumping device is used for vacuumizing a sealed cavity formed after the upper cavity and the lower cavity are assembled.

Further, the centrifugal two-seal machine convenient for discharging waste liquid further comprises a mold opening and closing driving mechanism, and the mold opening and closing driving mechanism is in driving connection with the upper cavity.

The utility model has the beneficial effects that: in practical application, after the upper cavity and the lower cavity are opened, a battery is placed on a puncture air extraction carrier plate of a puncture air extraction packaging mechanism by a manipulator and the like, then the upper cavity and the lower cavity are assembled to form a sealing cavity, so that the turntable, the puncture air extraction packaging mechanism and the battery are positioned in the sealing cavity, the sealing cavity is vacuumized, the sealing cavity is in a vacuum state, then the puncture air extraction packaging mechanism punctures, extracts and packages an air bag part of the battery borne on the puncture air extraction carrier plate, and meanwhile, the turntable is driven by a rotation driving mechanism to rotate along with the puncture air extraction packaging mechanism and the battery, and as the puncture air extraction packaging mechanism and the battery are positioned at the eccentric position of the turntable, centrifugal force can be generated in the rotating process of the battery, and the centrifugal force enables gas and liquid in the battery to be separated, so that the efficiency of gas and liquid separation is improved. After the working procedure is finished, part of electrolyte enters the vacuum chamber of the puncture suction carrier plate along with the gas, at the moment, the rotary table drives the suction opening and closing control module to rotate to a position corresponding to the suction abutting mechanism, then the suction abutting end of the suction abutting mechanism abuts against the abutting end of the suction opening and closing control module and abuts against the suction opening and closing control module to be opened, so that the suction abutting mechanism is communicated with the vacuum chamber of the puncture suction carrier plate through the suction opening and closing control module, and electrolyte in the vacuum chamber can be pumped out, and waste liquid discharge is realized. When the suction butt end of the suction butt mechanism is separated from the butt end of the suction opening and closing control module, the suction opening and closing control module is automatically closed. The utility model has reasonable structural design, and because the suction opening and closing control module and the suction butt joint mechanism are detachably butt joint, the suction butt joint mechanism can be arranged on the lower cavity, thereby avoiding large load of the turntable caused by that the suction butt joint mechanism and the suction opening and closing control module are arranged on the turntable, reducing the burden of the turntable, reducing the driving force required by the rotation driving mechanism to drive the turntable to rotate, saving energy and protecting environment.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a schematic perspective view of the upper cavity hidden in the present utility model.

Fig. 3 is a schematic perspective view of the suction opening and closing control module and the suction docking mechanism in a separated state.

Fig. 4 is a cross-sectional view of the suction on-off control module and suction docking mechanism of the present utility model.

Reference numerals illustrate:

1. a lower cavity; 2. an upper cavity; 3. a turntable; 4. puncturing the air extraction packaging mechanism; 5. a suction on-off control module; 50. a connector; 51. a suction box; 52. controlling the inner core; 521. a limiting ring; 522. positioning columns; 53. an elastic member; 54. a suction chamber; 541. a limiting hole; 55. a guide hole; 56. a first seal; 57. a second seal; 58. an airway; 59. air holes; 6. a suction docking mechanism; 61. a suction docking tube; 62. a butt-joint driving mechanism; 63. guide sleeve; 64. butt joint; 7. a rotation driving mechanism; 8. and (5) vacuumizing the device.

Detailed Description

The utility model will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the utility model.

As shown in fig. 1 to 4, the centrifugal two-sealing machine convenient for discharging waste liquid provided by the utility model comprises a lower cavity 1, an upper cavity 2 covered on the lower cavity 1 in a lifting manner, a rotary table 3 rotatably arranged in the lower cavity 1, one or more puncture air-extraction sealing mechanisms 4 arranged in the circumferential direction of the rotary table 3, a suction opening and closing control module 5 arranged on the rotary table 3, a suction butt joint mechanism 6 arranged at the bottom of the lower cavity 1 and a rotation driving mechanism 7 arranged at the bottom of the lower cavity 1 and used for driving the rotary table 3 to rotate, wherein the puncture air-extraction sealing mechanism 4 is provided with a puncture air-extraction carrier plate, the suction end of the suction opening and closing control module 5 is communicated with a vacuum chamber of the puncture air-extraction carrier plate, the butt joint end of the suction butt joint mechanism 6 protrudes into the lower cavity 1 and is used for detachably butt joint with the butt joint end of the suction opening and closing control module 5, and the upper cavity 2 and the lower cavity 1 form a sealing cavity; the puncture pumping and packaging mechanism 4 may be any device known in the art, and will not be described in detail herein.

In practical application, after the upper cavity 2 and the lower cavity 1 are opened, a battery is placed on a puncture air extraction carrier plate of the puncture air extraction packaging mechanism 4 by a manipulator and the like, then the upper cavity 2 and the lower cavity 1 are assembled to form a sealed cavity, so that the turntable 3, the puncture air extraction packaging mechanism 4 and the battery are positioned in the sealed cavity, then the sealed cavity is vacuumized, so that the sealed cavity is in a vacuum state, then the puncture air extraction packaging mechanism 4 punctures, extracts and packages an air bag part of the battery borne on the puncture air extraction carrier plate, and meanwhile, the turntable 3 is driven by the rotation driving mechanism 7 to rotate together with the puncture air extraction packaging mechanism 4 and the battery, and as the puncture air extraction packaging mechanism 4 and the battery are positioned at the eccentric position of the turntable 3, centrifugal force can be generated in the rotation process of the battery, and the centrifugal force enables gas and liquid in the battery to be separated, so that the efficiency of gas and liquid separation is improved. After the above procedure is completed, part of electrolyte enters the vacuum chamber of the puncture suction carrier plate along with the gas, at this time, the turntable 3 drives the suction opening and closing control module 5 to rotate to a position corresponding to the suction abutting mechanism 6, then the suction abutting end of the suction abutting mechanism 6 abuts against the abutting end of the suction opening and closing control module 5 and abuts against the suction opening and closing control module 5 to open, so that the suction abutting mechanism 6 is communicated with the vacuum chamber of the puncture suction carrier plate through the suction opening and closing control module 5, and the electrolyte in the vacuum chamber can be pumped out, so that waste liquid discharge is realized. When the suction butt end of the suction butt mechanism 6 is separated from the butt end of the suction opening and closing control module 5, the suction opening and closing control module 5 is closed by itself. The utility model has reasonable structural design, and because the suction opening and closing control module 5 and the suction butt joint mechanism 6 are detachably butt-jointed, the suction butt joint mechanism 6 can be arranged on the lower cavity 1, the large load of the turntable 3 caused by the fact that the suction butt joint mechanism 6 and the suction opening and closing control module 5 are arranged on the turntable 3 is avoided, the burden of the turntable 3 is lightened, the driving force required by the rotation driving mechanism 7 for driving the turntable 3 to rotate is reduced, and the utility model is energy-saving and environment-friendly.

In this embodiment, the suction opening and closing control module 5 includes a suction box 51, a control inner core 52 and an elastic member 53, the suction box 51 is mounted in the turntable 3, a suction cavity 54 is disposed in the suction box 51, a guide hole 55 communicating with the suction cavity 54 is opened at one end of the suction box 51, a first sealing member 56 and a second sealing member 57 are sleeved outside the control inner core 52 at intervals, the control inner core 52 is in sealed sliding connection with the inner wall of the guide hole 55 via the first sealing member 56 and the second sealing member 57, the outer end of the control inner core 52 protrudes below the turntable 3 and is used for being detachably abutted with the abutting end of the suction opening and closing control module 5, the elastic member 53 is disposed in the suction cavity 54, the inner end surface of the control inner core 52 is elastically connected with the suction box 51 via the elastic member 53, an air passage 58 is disposed in the axial direction of the control inner core 52, an air hole 59 communicating with the air passage 58 is radially disposed between the first sealing member 56 and the second sealing member 57, the air hole 59 is used for communicating with the suction cavity 54, the air passage 58 is used for communicating with the abutting end of the suction opening and closing control module 5, the suction cavity 51 is mounted with the suction cavity 50 via the suction connection head 50. Specifically, the suction docking mechanism 6 includes a suction docking pipe 61 and a docking driving mechanism 62, the driving end of the docking driving mechanism 62 is connected with the suction docking pipe 61, the suction docking pipe 61 is slid through the bottom of the lower cavity 1, and the suction docking pipe 61 is used for detachably docking with the docking end (the control core 52) of the suction opening and closing control module 5; the butt joint driving mechanism 62 can adopt a linear module such as an air cylinder or a linear motor, and the suction butt joint pipe 61 is communicated with the suction machine; specifically, the number of the air holes 59 is plural, and the plural air holes 59 are distributed in an annular array around the central axis of the control core 52.

In practical application, initially, the control core 52 is under the elastic force of the elastic member 53, and the control core 52 is at a low position, so that the air hole 59 is sealed in the guide hole 55 via the first sealing member 56 and the second sealing member 57, and the control core 52 is in a disconnected state from the suction cavity 54, and the control core 52 is in a separated state from the suction docking tube 61; when the vacuum chamber of the puncture-exhaust carrier plate needs to be subjected to suction operation to extract electrolyte (waste liquid), the butt joint driving mechanism 62 drives the suction butt joint pipe 61 to move towards the direction close to the control inner core 52, so that the suction butt joint pipe 61 is in butt joint with the control inner core 52, and the control inner core 52 is pushed to move into the suction cavity 54 along the guide hole 55 and compress the elastic piece 53 until the air hole 59 protrudes into the suction cavity 54 and is communicated with the suction cavity 54, so that the vacuum chamber of the puncture-exhaust carrier plate, the air pipe, the suction cavity 54, the air hole 59, the air channel 58 and the suction butt joint pipe 61 are sequentially communicated, and the vacuum chamber of the puncture-exhaust carrier plate can be subjected to suction operation; after the suction is completed, the butt joint driving mechanism 62 drives the suction butt joint pipe 61 to move in a direction away from the control core 52 until the suction butt joint pipe 61 is separated from the control core 52, and the control core 52 pushes the control core 52 to move in a direction away from the suction cavity 54 and reset under the resilience force of the elastic member 53, so that the control core 52 and the suction cavity 54 are restored to the disconnected state. According to the structural design, the butt joint of the suction butt joint pipe 61 and the control inner core 52 and the on-off synchronous control of the control inner core 52 and the suction cavity 54 are convenient and efficient to control, the suction butt joint pipe 61 can be separated from the control inner core 52, intermittent suction operation is achieved, and the suction butt joint pipe 61 and the control inner core 52 are not mutually influenced after being disconnected.

In this embodiment, a limiting hole 541 is provided at the junction between the suction cavity 54 and the guide hole 55, and a limiting ring 521 is provided on the outer side wall of the inner end of the control inner core 52, and the limiting hole 541 is used for limiting the limiting ring 521. In the process of elastically resetting the control inner core 52 through the elastic piece 53, the limiting ring 521 moves into the limiting hole 541 until the limiting hole 541 abuts against the limiting ring 521 to limit, so as to ensure the resetting precision and stability of the control inner core 52, and avoid the control inner core 52 from being separated from the suction box 51.

In this embodiment, the suction docking mechanism 6 further includes a guide sleeve 63 fitted to the bottom of the lower chamber 1, and the suction docking tube 61 slides through the guide sleeve 63. During the lifting movement of the suction interfacing tube 61, the guide sleeve 63 plays a role in guiding the movement of the suction interfacing tube 61, improving the movement stability of the suction interfacing tube 61.

In this embodiment, an end of the suction connection pipe 61 near the suction opening and closing control module 5 is sleeved with a connection joint 64, and the suction connection pipe 61 is connected with the suction opening and closing control module 5 through the connection joint 64. By providing the abutment 64, the suction abutment 61 is prevented from directly contacting the control core 52, wear of the suction abutment 61 is reduced, and maintenance costs are reduced. Preferably, the abutment 64 may be a rubber sleeve that is positioned over the suction abutment 61. When the rubber sleeve is in butt joint with the control inner core 52, the rubber sleeve can elastically deform to compensate the gap between the suction butt joint pipe 61 and the control inner core 52, so that the butt joint tightness of the control inner core 52 and the suction butt joint pipe 61 is improved, and the rubber sleeve has certain elasticity, so that the rubber sleeve plays roles of buffering protection, shock absorption and noise reduction when the control inner core 52 is in butt joint with the suction butt joint pipe 61.

Specifically, the butt-joint port of the butt-joint 64 is horn-shaped, which is advantageous for accurate and smooth butt-joint of the butt-joint 64 and the control core 52.

In this embodiment, the number of connectors 50 is equal to the number of puncture pumping packaging mechanisms 4. Preferably, the number of connectors 50 and the number of puncture pumping packaging mechanisms 4 are two. The structural design can perform suction operation on the vacuum chambers of the puncture suction carrier plates of the puncture suction packaging mechanisms 4 at one time.

In this embodiment, the inner end surface of the control inner core 52 and the inner side wall of the suction cavity 54 are both provided with positioning posts 522 in a protruding manner, and two ends of the elastic member 53 are respectively sleeved outside the corresponding positioning posts 522. Preferably, the elastic member 53 is a spring. The two ends of the elastic member 53 are positioned by the two corresponding positioning posts 522, so that the position accuracy and the working stability of the elastic member 53 are ensured, and the suction box 51, the elastic member 53 and the control inner core 52 are conveniently assembled.

In this embodiment, a vacuum-pumping device 8 is installed outside the upper cavity 2 and/or the lower cavity 1, and the vacuum-pumping device 8 is used for evacuating a sealed cavity formed after the upper cavity 2 and the lower cavity 1 are assembled. In practical application, the vacuum-pumping device 8 performs vacuum pumping on the sealed cavity, so that the battery performs puncturing, air pumping and packaging treatment in a vacuum environment.

In this embodiment, the centrifugal two-seal machine convenient for discharging waste liquid further comprises a mold opening and closing driving mechanism, and the mold opening and closing driving mechanism is in driving connection with the upper cavity 2. In practical application, the mold opening and closing driving mechanism drives the upper cavity 2 to move close to or away from the lower cavity 1, so as to realize mold opening or mold closing of the upper cavity 2 and the lower cavity 1.

All technical features in the embodiment can be freely combined according to actual needs.

The foregoing embodiments are preferred embodiments of the present utility model, and in addition, the present utility model may be implemented in other ways, and any obvious substitution is within the scope of the present utility model without departing from the concept of the present utility model.

Claims (10)

1. A centrifugal two-seal machine convenient to waste liquid discharge, which is characterized in that: the sealing device comprises a lower cavity (1), an upper cavity (2) which is covered on the lower cavity (1) in a lifting manner, a rotary table (3) which is arranged in the lower cavity (1) in a rotating manner, one or more puncture air extraction packaging mechanisms (4) which are arranged on the rotary table (3), a suction opening and closing control module (5) which is arranged on the rotary table (3), a suction butt joint mechanism (6) which is arranged at the bottom of the lower cavity (1) and a rotation driving mechanism (7) which is arranged at the bottom of the lower cavity (1) and is used for driving the rotary table (3) to rotate, wherein the puncture air extraction packaging mechanisms (4) are provided with puncture air extraction carrier plates, the suction end of the suction opening and closing control module (5) is communicated with a vacuum chamber which punctures the air extraction carrier plates, the butt joint end of the suction opening and closing control module (5) protrudes to the lower part of the rotary table (3), and the suction butt joint end of the suction butt joint mechanism (6) protrudes into the lower cavity (1) and is used for detachably butt joint with the butt joint end of the suction opening and closing control module (5), and the upper cavity (2) and the lower cavity (1) are sealed.

2. The centrifugal double-sealing machine for conveniently discharging waste liquid according to claim 1, wherein: the suction opening and closing control module (5) comprises a suction box (51), a control inner core (52) and an elastic piece (53), wherein the suction box (51) is arranged below the turntable (3), a suction cavity (54) is arranged in the suction box (51), a guide hole (55) communicated with the suction cavity (54) is formed in one end of the suction box (51), a first sealing piece (56) and a second sealing piece (57) are sleeved outside the control inner core (52) at intervals, the control inner core (52) is in sliding connection with the inner wall of the guide hole (55) in a sealing manner through the first sealing piece (56) and the second sealing piece (57), the outer end of the control inner core (52) protrudes to the lower side of the turntable (3) and is used for being detachably butted with the butted end of the suction opening and closing control module (5), the elastic piece (53) is arranged in the suction cavity (54), an air flue (58) is arranged on the inner end surface of the control inner core (52) in an elastic connection with the suction box (51), an air flue (58) is formed in the axial direction of the control inner core (52), the control inner core (52) is radially provided with an air flue (58) communicated with the air flue (59), the air flue (59) is arranged between the first sealing piece (59) and the air flue (54) and the air flue (59), the air passage (58) is used for being communicated with the butt joint end of the suction opening and closing control module (5), the suction box (51) is provided with a connector (50) communicated with the suction cavity (54), and the connector (50) is communicated with the vacuum chamber of the puncture suction carrier plate through an air pipe.

3. A centrifugal double-sealing machine for facilitating waste liquid discharge according to claim 1 or 2, characterized in that: the suction butt joint mechanism (6) comprises a suction butt joint pipe (61) and a butt joint driving mechanism (62), the driving end of the butt joint driving mechanism (62) is connected with the suction butt joint pipe (61), the suction butt joint pipe (61) penetrates through the bottom of the lower cavity (1) in a sliding mode, and the suction butt joint pipe (61) is used for being detachably butt-jointed with the butt joint end of the suction opening and closing control module (5).

4. The centrifugal double-sealing machine convenient for discharging waste liquid according to claim 2, wherein: a limiting hole (541) is formed at the joint of the suction cavity (54) and the guide hole (55), a limiting ring (521) is arranged on the outer side wall of the inner end of the control inner core (52), and the limiting hole (541) is used for limiting the limiting ring (521).

5. A centrifugal double-sealing machine for facilitating waste liquid discharge according to claim 3, wherein: the suction butt joint mechanism (6) further comprises a guide sleeve (63) embedded at the bottom of the lower cavity (1), and the suction butt joint pipe (61) penetrates through the guide sleeve (63) in a sliding mode.

6. A centrifugal double-sealing machine for facilitating waste liquid discharge according to claim 3, wherein: one end of the suction butt joint pipe (61) close to the suction opening and closing control module (5) is sleeved with a butt joint head (64), and the suction butt joint pipe (61) is in butt joint with the suction opening and closing control module (5) through the butt joint head (64).

7. The centrifugal double-sealing machine convenient for discharging waste liquid according to claim 2, wherein: the number of the connectors (50) is equal to that of the puncture air extraction packaging mechanisms (4).

8. The centrifugal double-sealing machine convenient for discharging waste liquid according to claim 2, wherein: positioning columns (522) are arranged on the inner end face of the control inner core (52) and the inner side wall of the suction cavity (54) in a protruding mode, and two ends of the elastic piece (53) are sleeved outside the corresponding positioning columns (522) respectively.

9. The centrifugal double-sealing machine for conveniently discharging waste liquid according to claim 1, wherein: the upper cavity (2) or/and the lower cavity (1) are externally provided with a vacuumizing device (8), and the vacuumizing device (8) is used for vacuumizing a sealing cavity formed after the upper cavity (2) and the lower cavity (1) are assembled.

10. The centrifugal double-sealing machine for conveniently discharging waste liquid according to claim 1, wherein: the centrifugal two-seal machine convenient for discharging waste liquid also comprises a mold opening and closing driving mechanism which is in driving connection with the upper cavity (2).