CN211770184U

CN211770184U - Capping device of cell preservation solution filling production line

Info

Publication number: CN211770184U
Application number: CN202020122918.4U
Authority: CN
Inventors: 李茹
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-10-27
Anticipated expiration: 2030-01-19

Abstract

The utility model discloses a capping device of cell preservation liquid filling line, its technical essential still includes spacing capping and allotment subassembly including setting gradually hanging lid mechanism, gland mechanism and the spiral cover mechanism in partition carousel perisporium department, spacing capping radially slides along the partition carousel and sets up on the lateral wall of spiral cover mechanism, spacing capping forms spacing chamber with the bottle groove that the partition carousel is located spiral cover mechanism spiral cover department, be provided with the drive arrangement that the spacing capping of drive slided in the spiral cover mechanism, the allotment subassembly sets up and is used for fixing a position the bottle in spacing intracavity on spacing capping. The utility model discloses can stabilize the bottle for spiral cover mechanism carries out the spiral cover steadily to the bottle.

Description

Capping device of cell preservation solution filling production line

Technical Field

The utility model relates to a liquid filling field, more specifically say, it relates to a cell preservation liquid filling line's capping device.

Background

The cell preservation solution is a liquid which plays a role in maintaining and fixing the original morphological structure of cells, is the basis of pathological cell diagnosis, and is required to be used for fixing the cell morphology if the morphological structure of the cells changes, which may bring errors of diagnosis results, and is also the core structure of a liquid-based cell reagent; in the use of the cell preservation solution, the cell preservation solution is usually added to a vial by a filling machine and the cell solution is used in batches.

The existing Chinese patent with the publication number of CN207524934U discloses a human blood red blood cell filling and cap screwing machine, which comprises: the bottle conveying device is in butt joint with the front end of the conveying device; the middle part of the conveying device is butted with a main transmission device, the main transmission device comprises a disc-shaped equally-divided rotary table, fixing grooves for fixing the bottle bodies are arranged on the outer peripheral surface of the equally-divided rotary table at equal intervals, a filling station, a cap hanging station, a cap pressing correcting station and a cap screwing station are sequentially arranged on the outer periphery of the equally-divided rotary table, and the cap hanging station is butted at the tail end of the cap conveying device; a filling device is arranged at the filling station and comprises a linear peristaltic pump, and a peristaltic pump hose is arranged in a pipe ditch of the linear peristaltic pump; the inlet section of the peristaltic pump hose is inserted into the liquid supply container; the outlet section port of the peristaltic pump hose is connected with a filling needle.

However, in the process of capping the bottle, since a horizontal force is applied to the bottle by rotating the cap, the bottle body is shaken, and thus, stability in the capping process is lowered.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a cell preservation liquid filling line's capping device can carry out the spiral cover steadily to the bottle.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a cell preservation liquid filling line's capping device, is including setting gradually hanging lid mechanism, gland mechanism and the spiral cover mechanism of dividing carousel perisporium department, still includes spacing cover head and allotment subassembly, spacing cover head sets up on the lateral wall of spiral cover mechanism along the radial sliding of partition carousel, spacing cover head and the partition carousel are located the bottle groove of spiral cover mechanism spiral cover department and form spacing chamber, be provided with the drive arrangement that the spacing cover head of drive slided in the spiral cover mechanism, the allotment subassembly sets up and is used for fixing a position the bottle at spacing intracavity on the spacing cover head.

Through taking above-mentioned technical scheme, after the bottle is through hanging lid mechanism upper cover, gland mechanism adjustment gland, the bottle is moved to spiral cover mechanism department by the partition carousel, and under drive arrangement's drive this moment, spacing cover head moves towards the partition carousel to the bottle that will treat the spiral cover is detained in spacing chamber, forms the primary location to the bottle, and the allotment subassembly starts at last, can carry out ultimate spacing to the bottle, thereby the utility model discloses can stabilize the bottle, spiral cover mechanism can carry out the spiral cover to the bottle steadily.

The utility model discloses a further set up to, the allotment subassembly includes surge tank, allotment bag, breather pipe, wriggling air pump, first check valve and piece of bleeding, the surge tank sets up in the relative one side in spacing hood and spacing chamber, the allotment bag is the elasticity bag and sets up in the surge tank, the breather pipe sets up on the allotment bag and communicates with each other with the allotment bag, the wriggling air pump sets up the one end of keeping away from the allotment bag at the breather pipe, first check valve sets up on the breather pipe, the piece of bleeding sets up on the pipe wall that the breather pipe is located between first check valve and allotment bag.

By adopting the technical scheme, after the limiting cavity is formed between the limiting cover head and the bottle groove, the peristaltic air pump blows air into the blending bag through the air pipe, so that the inflatable blending bag can fill redundant space in the limiting cavity, the bottle body is finally and stably positioned in the limiting cavity, and after the cover is screwed, the air in the blending bag is discharged by the air discharging piece and is used next time; and the blending bag is inflated after forming the limiting cavity to position the bottle body, the limiting is more stable step by step, and the vent pipe only inflates the blending bag under the action of the first one-way valve, so that the leakage of gas in the blending bag is reduced.

The utility model discloses a further set up as, the piece of exitting includes that blast pipe, negative pressure inhale bag, breathing pipe, second check valve, third check valve and aspirator pump, the blast pipe is connected on the pipe wall that the breather pipe is located between first check valve and allotment bag, the one end that the breather pipe was kept away from at the blast pipe is inhaled in the setting of negative pressure, the one end that the blast pipe was kept away from to the breathing pipe setting at the negative pressure inhale the bag, the aspirator pump setting is kept away from the one end that the negative pressure inhaled the bag at the breathing pipe, the second check valve sets up on the blast pipe, the third check valve sets up on the breathing pipe.

Through adopting above-mentioned technical scheme, when the spiral cover is not finished, the negative pressure is inhaled the bag and is in the negative pressure state to after the spiral cover, the second check valve is opened, and the negative pressure is inhaled the pressure differential between bag and the allotment bag, makes the negative pressure inhale the bag and siphons away the gas in the bag of allotment, once after letting out, the aspirator pump is through the gas of third check valve in with the negative pressure gasbag and siphons away, makes the negative pressure gasbag be in the negative pressure once more, so that the next time of allotment bag is deflated.

The utility model discloses a further set up to, the allotment bag is provided with a plurality of flexibility even heads towards the one end in spacing chamber, the flexibility even head is kept away from the one end of allotment bag and is provided with the non slipping head with the bottle butt.

Through taking above-mentioned technical scheme, the first frictional force that can increase between allotment bag and the bottle of anti-skidding support on the bottle lateral wall to improve the location effect to the bottle, and flexible even the setting of head then provides certain dislocation space for allotment bag and bottle, reduces allotment bag and aerifing the in-process, because allotment bag deformation and arouse to the bottle, especially the drive of vertical direction.

The utility model discloses a further set up to, the notch department in partition carousel bottle groove is provided with the fixed point and supports the groove, the one end that spacing cover head is close to the partition carousel is provided with and supports the fixed point inserted block of groove butt with the fixed point.

Through adopting above-mentioned technical scheme, when forming spacing chamber, fixed point inserted block and fixed point support the groove and peg graft to utilize fixed point inserted block and fixed point to support the limiting displacement between the groove, fix a position spacing cover head, thereby improve the stability that spacing chamber formed.

The utility model discloses a further set up to, be provided with buffer spring between fixed point inserted block and the spacing cover head, buffer spring is along the radial flexible of partition carousel.

By adopting the technical scheme, when the limiting cover head moves towards the equal division rotary table, the buffer spring is elastically deformed at the moment of inserting the fixed point insert block and the fixed point abutting groove, the impact force between the fixed point insert block and the fixed point abutting groove is buffered, and the collision loss of the equal division rotary table and the limiting cover head is reduced.

The utility model discloses a further set up to, extend on the cell wall of allotment groove and be provided with the groove of stepping down, it packs out the piece to step down to set up elastically in the groove.

Through adopting above-mentioned technical scheme, the allotment bag is aerifyd the in-process and can constantly support to pressing the allotment groove, and long-time back can cause the damage of allotment groove and allotment bag, sets up the groove of stepping down and steps down and fill up the piece, shifts the support of allotment bag and presses to stepping down and fill up on the piece to the elastic deformation who steps down and fill up the piece can cushion the support of allotment bag, reduces the damage of allotment groove and allotment bag.

The utility model discloses a further setting is as, spacing cover head includes fixed head and movable head, the fixed head sets up on the lateral wall of spiral cover mechanism, one side of keeping away from spiral cover mechanism on the fixed head is provided with the connection thread groove, the allotment groove sets up on the movable head, the one end that the allotment groove was kept away from to the movable head is provided with the connecting stud, connecting stud and connection thread groove threaded connection, be provided with on the allotment bag and wear to establish the connecting stud and keep away from the cooperation trachea of movable head one end, the one end that the peristaltic air pump was kept away from to the breather pipe sets up in the fixed head and extends to the connection thread groove; and after the connecting screw block is in threaded connection with the connecting screw groove, the matching air pipe is communicated with the vent pipe in a sealing way.

Through taking above-mentioned technical scheme, realize allotment bag at the overhead dismantlement of spacing cover and connect to can change the allotment bag that has aged conveniently, cooperate tracheal setting moreover, when making the installation activity head, can be in the same place allotment bag and breather pipe intercommunication, convenient and fast.

To sum up, the utility model discloses following beneficial effect has:

1. after the limiting cavity is formed between the limiting cover head and the bottle groove, the inflatable allocating bag can be used for filling the redundant space in the limiting cavity, so that the bottle body is finally and stably positioned in the limiting cavity, and the bottle body can be stably screwed by the cap screwing mechanism;

2. the utility model discloses in set up flexible even head and anti-skidding head, anti-skidding head supports can support on the bottle lateral wall and improve the location effect to the bottle, and flexible even setting of head then provides certain dislocation space for allocating between bag and the bottle, reduces allocating bag and aerifing the in-process, by allocating bag in deformation and arouse to the bottle, especially the drive of vertical direction.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a schematic diagram of a configuration module according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view of a deployment assembly according to an embodiment of the present invention.

Fig. 4 is an enlarged view of a portion a in fig. 2.

Fig. 5 is a cross-sectional view of a structure embodying the second embodiment of the present invention.

Reference numerals: 1. equally dividing the rotary table; 11. a bottle slot; 2. a cover hanging mechanism; 3. a capping mechanism; 4. a cap screwing mechanism; 5. a limiting cover head; 51. a limiting cavity; 52. inserting blocks at fixed points; 521. a fixed-point abutting groove; 522. a buffer spring; 53. a fixed head; 54. a movable head; 55. a drive device; 6. a blending component; 61. a blending tank; 611. a yielding groove; 612. shifting and filling blocks; 62. preparing a capsule; 621. a flexible connection head; 622. an anti-slip head; 63. a breather pipe; 64. a peristaltic air pump; 65. a first check valve; 66. a venting member; 661. an exhaust pipe; 662. sucking a bag under negative pressure; 663. an air intake duct; 664. a second one-way valve; 665. a third check valve; 666. a getter pump; 7. connecting the screw groove; 71. connecting a stud; 72. is matched with an air pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

the utility model discloses a capping device of cell preservation liquid filling line, as shown in fig. 1 and fig. 2, including hanging lid mechanism 2, gland mechanism 3 and spiral cover mechanism 4 that set gradually in partition carousel 1 perisporium department, wherein hang lid mechanism 2, gland mechanism 3 and spiral cover mechanism 4 and belong to prior art, and this embodiment is no longer repeated, and in this embodiment, spiral cover mechanism 4 still includes spacing cover head 5 and allotment subassembly 6, and spacing cover head 5 slides along partition carousel 1 radial direction and sets up on the lateral wall of spiral cover mechanism 4, and spacing cover head 5 forms spacing chamber 51 (see fig. 3) with partition carousel 1 is located the bottle groove 11 of spiral cover mechanism 4 spiral cover department; the fixed-point abutting groove 521 is further arranged at the notch of the bottle groove 11, the fixed-point inserting block 52 abutting against the fixed-point abutting groove 521 is arranged at one end, close to the halving rotary disc 1, of the limiting cover head 5, meanwhile, a buffer spring 522 which stretches out and draws back along the radial direction of the halving rotary disc 1 is arranged between the fixed-point inserting block 52 and the limiting cover head 5, a driving device 55 (preferably a driving cylinder) for driving the limiting cover head 5 to slide is arranged on the cap screwing mechanism 4, and the blending assembly 6 is arranged on the limiting cover head 5 and used for positioning the bottle body in the limiting cavity 51. After the bottle body is filled with the cell preservation solution, the bottle body is rotated to the cover hanging mechanism 2 under the driving of the bottle groove 11 of the equal division rotary table 1 and the limiting arc plates (not shown in the figure) arranged around the equal division rotary table 1, the cover hanging mechanism 2 lightly places the bottle cover at the bottle mouth, then the bottle body provided with the bottle cover moves to the cover pressing mechanism 3, after the cover pressing mechanism 3 carries out pressing and correcting on the bottle cover, the bottle body is brought to the cover screwing mechanism 4 by the equal division rotary table 1, at the moment, the driving device 55 is started, the limiting cover head 5 is pushed to the equal division rotary table 1, the fixed point inserting block 52 is in friction connection with the fixed point abutting groove 521, meanwhile, the buffer spring 522 generates elastic deformation, the limiting cover head 5 can form a limiting cavity 51 with the corresponding bottle groove 11, the bottle body is positioned in the limiting cavity 51 lightly, then the blending assembly 6 is started, so that the bottle body realizes stable limiting in the limiting cavity 51, and then the cover screwing mechanism, can carry out stable spiral cover to the bottle.

As shown in fig. 2 and 3, the dispensing assembly 6 includes a dispensing groove 61, a dispensing bag 62, an air vent pipe 63, a peristaltic air pump 64, a first one-way valve 65 and an air release member 66, the dispensing groove 61 is disposed on a side of the limiting cover head 5 opposite to the limiting cavity 51 and has an arc shape, the dispensing bag 62 is an elastic bag and is disposed in the dispensing groove 61, the air vent pipe 63 is a flexible pipe disposed on the dispensing bag 62 and communicated with the dispensing bag 62, the peristaltic air pump 64 is disposed on an end of the air vent pipe 63 away from the dispensing bag 62 for inflating the dispensing bag 62, the first one-way valve 65 is disposed on the air vent pipe 63, air is delivered into the dispensing bag 62 through the first one-way valve 65, and the air release member 66 is disposed on a pipe wall of the air vent pipe 63 between the first one-way valve 65 and the dispensing bag. After the limiting cavity 51 is formed, the peristaltic air pump 64 is started, so that the peristaltic air pump 64 inflates the blending bag 62 through the air pipe 63 and the first one-way valve 65, the volume of the inflated blending bag 62 is gradually increased to fill the residual space in the limiting cavity 51, the bottle body can be stably limited in the limiting cavity 51, the cap screwing mechanism 4 releases the gas in the blending bag 62 after the cap screwing work of the bottle body is finished, the gas releasing piece 66 releases the gas in the blending bag 62, the driving device 55 drives the limiting cover head 5 to be far away from the equal division turntable 1, the equal division turntable 1 continuously rotates, and the cap screwing mechanism 4 performs cap screwing operation on the downward-moved bottle body.

As shown in fig. 2, the air release member 66 includes an air outlet pipe 661, a negative pressure suction bag 662, an air suction pipe 663, a second check valve 664, a third check valve 665 and an air suction pump 666, wherein the air outlet pipe 661 is connected to a pipe wall of the air outlet pipe 63 between the first check valve 65 and the dispensing bag 62, the negative pressure suction bag 662 is disposed at an end of the air outlet pipe 661 far from the air outlet pipe 63, the negative pressure suction bag 662 is a rubber air bag in the present embodiment, the air suction pipe 663 is disposed at an end of the negative pressure suction bag 662 far from the air outlet pipe 661, the air suction pump 666 is disposed at an end of the air suction pipe 663 far from the negative pressure suction bag 662, and the second check valve 664 and the third check valve 665 are disposed on. Firstly closing the second one-way valve 664, opening the third one-way valve 665, then starting the suction pump 666 to enable the suction pump 666 to suck the gas in the negative pressure suction bag 662 through the suction pipe 663 so that the negative pressure suction bag 662 is at a negative pressure, then after the cap screwing mechanism 4 finishes working, opening the second one-way valve 664, enabling the gas in the blending bag 62 to enter the negative pressure air bag through the second one-way valve 664 and the exhaust pipe 661 to complete deflation of the blending bag 62, finally closing the second one-way valve 664, opening the third one-way valve 665, then starting the suction pump 666 to enable the suction pump 666 to suck the gas in the negative pressure suction bag 662 through the suction pipe 663 so that the negative pressure suction bag 662 is at a negative pressure for next use.

As shown in fig. 3 and 4, in order to further improve the stability of the bottle body in the limiting cavity 51, a plurality of flexible connecting heads 621 are evenly distributed at one end of the blending bag 62 facing the limiting cavity 51, the end of the flexible connecting head 621 far away from the blending bag 62 is provided with an anti-slip head 622 abutted to the bottle body, the blending bag 62 is in an inflating process, the anti-slip head 622 can be firstly abutted to the side wall of the bottle body, the limiting acting force on the bottle body is improved by using the friction force between the anti-slip head 622 and the bottle body, and meanwhile, when the blending bag 62 continues to inflate, the flexible connecting heads 621 deform, so that the longitudinal deformation caused by the inflation deformation of the blending bag 62 can be counteracted, and the blending bag 62 is prevented from driving the bottle body to move in the vertical direction. Meanwhile, the groove wall of the blending groove 61 is provided with an arc-shaped yielding groove 611 in an extending manner, the yielding groove 611 is filled with an elastic yielding filling block 612, and in the inflating process of the blending bag 62, the blending bag 62 is pressed against the yielding filling block 612, so that the elastic deformation of the yielding filling block 612 can buffer the pressing of the blending bag 62, and the damage to the blending groove 61 and the blending bag 62 is reduced.

The working process is as follows:

after the bottle body is filled with the cell preservation solution, the bottle body is rotated to the cover hanging mechanism 2 under the driving of the equal division rotary disc 1, the cover hanging mechanism 2 lightly puts the bottle cover at the bottle mouth, then the bottle body with the bottle cap moves to the capping mechanism 3, after the capping mechanism 3 carries out the pressing correction to the bottle cap, the bottle body is carried to the cap screwing mechanism 4 by the halving turntable 1, at this time, the driving device 55 is started, the limiting cover head 5 is pushed to the halving turntable 1 and forms a limiting cavity 51 with the corresponding bottle groove 11, the bottle body is positioned in the limiting cavity 51 lightly, the peristaltic air pump 64 is started, so that the peristaltic air pump 64 inflates the blending bag 62 through the air pipe 63 and the first one-way valve 65, the volume of the inflated blending bag 62 gradually increases to fill the residual space in the limiting cavity 51, so that the bottle body can be stably limited in the limiting cavity 51, and then the cap screwing mechanism 4 can screw cap the bottle body; after the cap screwing mechanism 4 finishes cap screwing work on the bottle body, the negative pressure suction bag 662 is in a negative pressure state, the second check valve 664 is opened, and at the moment, gas in the blending bag 62 enters the negative pressure air bag through the second check valve 664 and the exhaust pipe 661, so that the air releasing of the blending bag 62 is completed.

Example two:

a capping device for a cell preservation solution filling line is shown in FIG. 5, and the difference between the second embodiment and the first embodiment is that: spacing cover head 5 includes fixed head 53 and activity head 54, fixed head 53 sets up on the lateral wall of spiral cover mechanism 4, one side of keeping away from spiral cover mechanism 4 on fixed head 53 is provided with connects thread groove 7, adjustment tank 61 sets up on activity head 54, the one end that adjustment tank 61 was kept away from to activity head 54 is provided with connecting stud 71, connecting stud 71 and connecting thread groove 7 threaded connection, be provided with on the adjustment bag 62 and wear to establish connecting stud 71 and keep away from the cooperation trachea 72 of activity head 54 one end, the one end setting that peristaltic air pump 64 was kept away from to breather pipe 63 is in fixed head 53 and extends to connecting thread groove 7, and be provided with the sealed pad of connecting stud 71 end wall butt on the diapire of connecting thread groove 7. After a period of time, the blending bag 62 is aged, the movable head 54 can be removed from the fixed head 53 by screwing, then the movable head 54 with the new blending bag 62 is selected, the connecting screw block is connected with the connecting screw groove 7 by screwing, and the matching air pipe 72 is communicated with the vent pipe 63 in a sealing way, so that the new blending bag 62 can be replaced.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a cell preservation liquid filling line's capping device, is including setting gradually hanging lid mechanism (2), gland mechanism (3) and spiral cover mechanism (4) in partition carousel (1) perisporium department, its characterized in that: the bottle cap is characterized by further comprising a limiting cap head (5) and a blending assembly (6), wherein the limiting cap head (5) is arranged on the side wall of the cap screwing mechanism (4) in a sliding mode along the equal division turntable (1) in the radial direction, a limiting cavity (51) is formed by the limiting cap head (5) and a bottle groove (11) of the equal division turntable (1) at the cap screwing position of the cap screwing mechanism (4), a driving device (55) for driving the limiting cap head (5) to slide is arranged on the cap screwing mechanism (4), and the blending assembly (6) is arranged on the limiting cap head (5) and used for positioning a bottle body in the limiting cavity (51).

2. The capping device for a cell preservation solution filling line according to claim 1, wherein: allotment subassembly (6) are including allotment groove (61), allotment bag (62), breather pipe (63), wriggling air pump (64), first check valve (65) and gassing spare (66), allotment groove (61) set up in spacing hood (5) and spacing chamber (51) relative one side, allotment bag (62) are the elasticity bag and set up in allotment groove (61), breather pipe (63) set up allotment bag (62) on and communicate with each other with allotment bag (62), wriggling air pump (64) set up the one end of keeping away from allotment bag (62) in breather pipe (63), first check valve (65) set up on breather pipe (63), gassing spare (66) set up on breather pipe (63) are located the pipe wall between first check valve (65) and allotment bag (62).

3. The capping device for a cell preservation solution filling line according to claim 2, wherein: put gas spare (66) and include that blast pipe (661), negative pressure inhale bag (662), breathing pipe (663), second check valve (664), third check valve (665) and aspirator pump (666), blast pipe (661) are connected on the pipe wall that breather pipe (63) is located between first check valve (65) and allotment bag (62), the one end of breather pipe (63) is kept away from in blast pipe (661) is inhaled in negative pressure bag (662), the one end of blast pipe (661) is kept away from in gasbag (662) is inhaled in negative pressure bag (662) in breathing pipe (663) setting, aspirator pump (666) set up the one end of inhaling bag (662) in negative pressure of keeping away from in breathing pipe (663), second check valve (664) set up on blast pipe (661), third check valve (665) set up on breathing pipe (663).

4. The capping device for a cell preservation solution filling line according to claim 2, wherein: allotment bag (62) are provided with a plurality of flexible even head (621) towards the one end of spacing chamber (51), the one end that allotment bag (62) were kept away from to flexible even head (621) is provided with anti-skidding head (622) with the bottle butt.

5. The capping device for a cell preservation solution filling line according to claim 1, wherein: a fixed-point abutting groove (521) is formed in the groove opening of the bottle groove (11) of the halving turntable (1), and a fixed-point inserting block (52) abutted to the fixed-point abutting groove (521) is arranged at one end, close to the halving turntable (1), of the limiting cover head (5).

6. The capping device for a cell preservation solution filling line according to claim 5, wherein: a buffer spring (522) is arranged between the fixed point inserting block (52) and the limiting cover head (5), and the buffer spring (522) stretches along the radial direction of the equal division turntable (1).

7. The capping device for a cell preservation solution filling line according to claim 2, wherein: the wall of the allocation groove (61) is provided with an abdicating groove (611) in an extending manner, and an elastic abdicating filling block (612) is arranged in the abdicating groove (611).

8. The capping device for a cell preservation solution filling line according to claim 2, wherein: the limiting cover head (5) comprises a fixed head (53) and a movable head (54), the fixed head (53) is arranged at the driving end of the driving device (55), a connecting screw groove (7) is formed in one side, far away from the driving device (55), of the fixed head (53), the blending groove (61) is formed in the movable head (54), a connecting stud (71) is arranged at one end, far away from the blending groove (61), of the movable head (54), the connecting stud (71) is in threaded connection with the connecting screw groove (7), a matching air pipe (72) penetrating through one end, far away from the movable head (54), of the connecting stud (71) is arranged on the blending bag (62), and one end, far away from the peristaltic air pump (64), of the air pipe (63) is arranged in the fixed head (53) and extends to the connecting screw groove (7); after the connecting screw block is in threaded connection with the connecting screw groove (7), the matching air pipe (72) is communicated with the vent pipe (63) in a sealing mode.