CN219154817U

CN219154817U - Capping mechanism

Info

Publication number: CN219154817U
Application number: CN202223586514.9U
Authority: CN
Inventors: 唐基聃; 谭亮; 刘金桥; 邓湘豫
Original assignee: Truking Technology Ltd
Current assignee: Truking Technology Ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-06-09
Anticipated expiration: 2032-12-31

Abstract

The utility model discloses a cap rolling mechanism which comprises a first cylindrical cam, a second cylindrical cam, a plurality of groups of connecting assemblies, a shaft sleeve assembly and a cap pressing assembly fixedly connected with the shaft sleeve assembly, wherein the shaft sleeve assembly and the cap pressing assembly are used for pre-compacting and cap rolling of bottle caps of lower bottle bodies through movement in the vertical direction, the first cylindrical cam drives one group of connecting assemblies to drive the shaft sleeve assembly and the cap pressing assembly to move in the vertical direction through free rotation so as to pre-compact the bottle caps, the second cylindrical cam drives the other group of connecting assemblies to drive a tying die blade in the cap pressing assembly to roll the bottle caps through free rotation, and the rotation movement of the first cylindrical cam and the second cylindrical cam are respectively and independently controlled. Compared with the prior art, the capping mechanism can solve the problem of low capping efficiency in the prior art, and can reduce aluminum scraps by not generating relative rotation with the aluminum cap.

Description

Capping mechanism

Technical Field

The utility model relates to the technical field of bottle sealing equipment, in particular to a cap rolling mechanism.

Background

In the production of pharmaceutical or food bottled products such as infusion bottles, oral liquid bottles, penicillin bottles, wines, beverage bottles and the like, sealing and capping are important procedures. The main stream bottle body rolling and capping machine in the market at present comprises a single rolling cutter, a large single-cutter rolling and capping machine and a three-cutter rotary rolling and capping machine; the three rolling cover modes generally need to be driven by a combined pneumatic device, the structure is complex, the rolling cover efficiency is low, a large amount of aluminum scraps are generated by relative friction between the rolling cutter and the aluminum cover (particularly, the three-cutter rotating rolling cover mode, the cutter head actively rotates and the aluminum cover slides to rub the rolling cover), and the A-level environment of a working area is easy to damage.

For example, in the chinese patent application CN202120740870.8, there is a bottle capping machine, which is capable of capping by synchronously deflecting the bottom ends of several gripping jaws arranged in a surrounding manner, and there is no relative friction between the cutter and the bottle. However, the connection between the pressure bar and the connecting cylinder and the cylinder of the cap rolling machine needs to ensure certain connection air tightness, the cap rolling structure is not compact enough and is not easy to maintain, and continuous cap rolling can not be performed on a plurality of bottle caps in the same batch through one-time movement, so that the overall cap rolling efficiency is low.

Based on this, it is desirable to design a new capping mechanism to improve the efficiency of continuous batch capping.

Disclosure of Invention

The utility model provides a capping mechanism which is used for solving the problem of low capping efficiency in the prior art and can reduce the generation of aluminum scraps by not generating relative rotation with an aluminum cap.

The utility model provides a cap rolling mechanism which comprises a first cylindrical cam, a second cylindrical cam, a plurality of groups of connecting assemblies, a shaft sleeve assembly and a cap pressing assembly fixedly connected with the shaft sleeve assembly, wherein the shaft sleeve assembly and the cap pressing assembly are used for pre-compacting and cap rolling bottle caps of lower bottle bodies through movement in the vertical direction, the first cylindrical cam drives one group of connecting assemblies to drive the shaft sleeve assembly and the cap pressing assembly to move in the vertical direction through free rotation so as to pre-compress the bottle caps, the second cylindrical cam drives the other group of connecting assemblies to drive a tying die blade in the cap pressing assembly to roll the bottle caps through free rotation, and the rotation movement of the first cylindrical cam and the second cylindrical cam are respectively and independently controlled.

Preferably, the tying die blade is of a multi-flap type knife edge structure, and the bottle body positioned on the bottle supporting mechanism and the tying die blade do not rotate relatively.

Preferably, the first cylindrical cam and the second cylindrical cam are rotatably arranged on the same fixed shaft.

Preferably, each group of connecting components comprises roller needle bearings, a bearing mounting rod and a connecting rod, wherein the roller needle bearings are positioned in spiral grooves of the first cylindrical cam and the second cylindrical cam, the roller needle bearings are fixedly connected with the connecting rod through the bearing mounting rod, and a horizontal limiting structure used for limiting the connecting rod to move in the horizontal direction is arranged on the horizontal direction of the connecting rod.

Preferably, a plurality of roller needle bearings are arranged in the spiral grooves of the first cylindrical cam and the second cylindrical cam so as to synchronously drive the corresponding plurality of groups of shaft sleeve assemblies and gland assemblies to perform continuous capping.

Preferably, the shaft sleeve assembly comprises a mounting shaft and a connecting shaft, the connecting shaft is fixed in the mounting shaft, a groove is formed in the lower end of the connecting shaft, a compression spring is arranged in the groove, and the lower end of the mounting shaft is fixedly connected with a group of connecting rods in the connecting assembly through a cylindrical cam adapter block.

Preferably, the gland assembly comprises a connecting seat, a base and a binding die sleeve, wherein the connecting seat is sequentially fixedly connected with the base and the binding die sleeve at the lower part, a through hole formed in the center of the connecting seat, the base and the binding die sleeve is internally provided with a switching shaft, a bushing, a binding head, a binding die blade and a compression block, the binding die blade is arranged in a groove above the binding die sleeve through a torsion spring and a clamping ring used for limiting, the binding head is extruded in an openable manner through downward movement on the upper end of the binding die blade, the switching shaft sequentially penetrates through a cavity in the bushing and the binding head and is fixedly connected with the compression block, the upper end of the switching shaft is connected with the compression spring, the lower end of the bushing is positioned in the connecting seat and is fixedly connected with the upper end of the binding head, and the upper end of the bushing is fixedly connected with another group of connecting rods in the connecting assembly through a cylindrical cam two switching blocks.

Preferably, a limiting sleeve is arranged in the base and used for limiting the bushing to move in the horizontal direction.

Preferably, the connecting seat is fixedly connected with the upper end of the base through an inner hexagon screw, the lower end of the base is in threaded connection with the upper end of the tying die sleeve, and the upper end of the connecting seat is fixedly connected with a cylindrical cam adapter block through a connecting block.

Preferably, the cylindrical cam adapter block and the mounting shaft are fixedly connected through an outer hexagon bolt.

Compared with the prior art, the capping mechanism has the following beneficial effects:

(1) The novel cover rolling mechanism is driven by adopting a purely mechanical structure, and adopts a double-cylinder cam structure capable of accommodating a plurality of roller needle bearings simultaneously, so that the novel cover rolling mechanism is suitable for continuous cover rolling equipment, and can continuously roll a plurality of bottle caps in the same batch through one-time motion cooperation of the upper and lower cylindrical cams, so that the use of the double-cylinder cam compound mechanism greatly improves the cover rolling efficiency in batches.

(2) The cap rolling mechanism is characterized in that a compression spring and a pre-compression mechanism of an adapter shaft are additionally arranged in the cap rolling mechanism in a cap rolling process, the penicillin bottle is prevented from swinging and shaking in the cap rolling process, a vertically movable bushing and a tying head which are wrapped outside the adapter shaft in a cap pressing assembly are also improved, the bushing moves in a space between the cap pressing assembly and the cap pressing assembly which are fixedly connected with each other, and therefore the cap rolling is carried out by controlling the rotation of a cylindrical cam II independently under the condition of cap pre-compression.

(3) The cap rolling mechanism can roll caps in a die-segment shrinkage mode, and can synchronously cancel the bottle sleeve rotating mechanism on the bottle supporting mechanism, so that the tying die blade and the aluminum cap do not rotate relatively, and the aluminum scraps are reduced.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of the whole structure of a capping mechanism in the present utility model;

FIG. 2 is a cross-sectional view showing the whole structure of the capping mechanism of the present utility model;

FIG. 3 is a schematic diagram of the operation of a single set of capping mechanisms in the capping mechanism of the present utility model;

FIG. 4 is a schematic view of a capping mechanism according to the present utility model;

FIG. 5 is a schematic diagram of a capping assembly of the capping mechanism of the present utility model;

fig. 6 is a schematic view of a cylindrical cam structure.

Reference numerals:

A. a capping mechanism; B. a bottle supporting mechanism; 1. roller needle bearings; 2. a bearing mounting rod; 3. a connecting rod; 4. an adjusting bolt; 5. an adjusting bolt mounting block; 6. a cylindrical cam second switching block; 7. a lock nut; 8. a gland assembly; 801. a transfer shaft; 802. a bushing; 803. an inner hexagon screw; 804. an outer hexagonal bolt; 805. a connecting seat; 806. a limit sleeve; 807. a base; 808. a torsion spring; 809. tying the die sleeve; 810. a clasp; 811. binding a head; 812. tying a die blade; 813. a compaction block; 9. fixing the connecting block; 10. a fixing ring; 11. a mounting shaft; 12. a connecting shaft; 13. a compression spring; 14. a cylindrical cam adapter block; 15. a cylindrical cam I; 16. a cylindrical cam II; 17. a bottle body; 18. and a sleeve assembly.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, in order to improve capping efficiency, this embodiment provides a capping mechanism a, which includes a first cylindrical cam 15, a second cylindrical cam 16, multiple sets of connection assemblies, a sleeve assembly 18, and a capping assembly 8 fixedly connected to the sleeve assembly 18, where the sleeve assembly 18 and the capping assembly 8 are used to pre-compress and cap the bottle cap of the lower bottle 17 through movement in a vertical direction, the first cylindrical cam 15 drives one set of connection assemblies through free rotation to drive the sleeve assembly 18 and the capping assembly 8 to perform movement in the vertical direction, so as to pre-compress the bottle cap, and the second cylindrical cam 15 drives the other set of connection assemblies through free rotation to drive a tying die blade 812 in the capping assembly 8 to perform capping on the bottle cap, and the rotational movements of the first cylindrical cam 15 and the second cylindrical cam 16 are respectively controlled independently.

It should be noted that the cylindrical cam one 15 and the cylindrical cam two 16 are cylindrical cams with spiral grooves as shown in fig. 6, so that the connecting assembly is driven to move vertically through a rotation angle, and the mechanical mode is particularly suitable for the condition of continuously capping multiple bottle caps in the same batch as shown in fig. 1-2, so that the use of the double cylindrical cam composite mechanism greatly improves batch capping efficiency. In addition, in order to make the structure of the double cylindrical cam composite mechanism compact enough, as shown in fig. 2-3, the cylindrical cam one 15 and the cylindrical cam two 16 are rotatably arranged on the same fixed shaft, and although the cylindrical cam one 15 and the cylindrical cam two 16 are arranged on the same fixed shaft, the rotation movements of the cylindrical cam two and the cylindrical cam two are respectively and independently controlled, and in particular, the cylindrical cam one 15 and the cylindrical cam two 16 can be respectively and coaxially driven by two groups of motors.

Specifically, in order to reduce the generation of aluminum scraps, there may be no relative friction between the tying die blade 812 serving as a rolling cutter and the bottle body, and the tying die blade 812 has a multi-segment knife edge structure, and at this time, the bottle sleeve rotating mechanism on the bottle supporting mechanism B is canceled synchronously, so that there is no relative rotation between the bottle body 17 and the tying die blade 812 on the bottle supporting mechanism B.

Specifically, referring to fig. 3-4, each group of connection components includes a roller needle bearing 1, a bearing mounting rod 2 and a connecting rod 3, the roller needle bearing 1 is located in spiral grooves of a first cylindrical cam 15 and a second cylindrical cam 16, the roller needle bearing 1 is fixedly connected with the connecting rod 3 through the bearing mounting rod 2, a horizontal limiting structure (not shown in the drawing) for limiting the connecting rod 3 to move in the horizontal direction is arranged in the horizontal direction of the connecting rod 3, a working schematic diagram of a single group of capping mechanism in the capping mechanism shown in fig. 3 is provided, and the single group of capping mechanism includes an upper group and a lower group of connection components, a group of shaft sleeve components 18 and a gland component 8 so as to cap a bottle cap of a bottle body 17 at the lower part of the outer side.

Specifically, a plurality of roller needle bearings 1 are arranged in the spiral grooves of the first cylindrical cam 15 and the second cylindrical cam 16 so as to synchronously drive the corresponding plurality of groups of shaft sleeve assemblies 18 and gland assemblies 8 to perform downward continuous capping. The design can enable each group of capping mechanisms to be staggered around the circumferential space of the first cylindrical cam 15 and the second cylindrical cam 16, so that the plurality of groups of shaft sleeve assemblies 18 and the gland assemblies 8 can be driven to continuously roll caps on a plurality of bottles 17 below through the movement of the same first cylindrical cam 15 and the same second cylindrical cam 16.

In addition, since the grooves on the cylindrical cam are spiral, a plurality of roller needle bearings 1 cannot be accommodated at the same height, and in order to ensure that all the sleeve assemblies 18 and the gland assemblies 8 are still positioned at the same horizontal level, the length of the connecting assembly needs to be adjustable at a certain height. In this regard, an adjusting bolt 4 and an adjusting bolt mounting block 5 are further disposed at one end of the connecting assembly, and the adjusting bolt 4 and the adjusting bolt mounting block 5 are used for adjusting the specific connection height and connection position of the connecting rod 3 and the cylindrical cam adapter block 14 and/or the cylindrical cam adapter block 6, so that the connecting rod 3 with different lengths is used to drive the multiple groups of shaft sleeve assemblies 18 and the gland assemblies 8 located on the same horizontal plane, so as to ensure that the structure is as compact as that of fig. 1.

Specifically, referring to fig. 4, the sleeve assembly 18 includes a mounting shaft 11 and a connecting shaft 12, the connecting shaft 12 is fixed in the mounting shaft 11, a groove is provided in the lower end of the connecting shaft 12, a compression spring 13 is fixedly provided in the groove, the lower end of the mounting shaft 11 is fixedly connected with a set of connecting rods 3 in the connecting assembly through a cylindrical cam adapter block 14, and the sleeve assembly 18 is fixedly connected with the gland assembly 8 below through two connecting blocks (not labeled in the figure, but the side of one connecting block is shown on the right, and the existence of the connecting block is also visible in fig. 1).

In addition, the upper end of the installation shaft 11 is fixedly sealed to the connection shaft 12 through the lock nut 7 and the fixed connection block 9, and the upper and lower ends of the connection shaft 12 fixed in the installation shaft 11 are provided with the fixed rings 10, thereby preventing the connection shaft 12 from moving up and down relative to the installation shaft 11.

Specifically, referring to fig. 5, the gland assembly 8 includes a connecting seat 805, a base 807 and a tie-up die sleeve 809, the connecting seat 805 is fixedly connected with the base 807 and the tie-up die sleeve 809 below in sequence, a through hole formed in the center of the connecting seat 805, the base 807 and the tie-up die sleeve 809 is internally provided with a switching shaft 801, a bushing 802, a tie-up head 811, a tie-up die blade 812 and a compression block 813, the tie-up die blade 812 is arranged in a groove above the tie-up die sleeve 809 through a torsion spring 808 and a snap ring 810 for limiting, the tie-up head 811 is fixedly connected with the compression block 813 through a torsion spring 808 and a groove above the switching shaft 801, the tie-up head 811 is in a downward movement to perform expandable extrusion on the upper end of the tie-up die blade 812, the tie-up head 811 can be specifically a diffuser with a V-shaped groove on the outer side surface in the prior art, one end of the torsion spring 808 on the left and right sides of the tie-up die sleeve 809 is fixed in the groove above the tie-up die sleeve 809, and the other end is arranged in the groove above the tie-up die sleeve 809, thereby providing a rolling cover, the switching shaft 801 sequentially passes through the cavity 802 and the compression block 813, the cavity inside the switching shaft 801 is fixedly connected with the compression block 813, the upper end of the switching shaft 801 is connected with the upper end of the cam spring 13 through the other end of the connecting shaft 802, and the other end is fixedly connected with the other end 3 through the cam assembly 3. When the first cylindrical cam 15 and the second cylindrical cam 16 drive the fixedly connected shaft sleeve assembly 18 and the gland assembly 8 to be in an upper state and not start to roll the cover, the adapter shaft 801 stretches and hangs through the compression spring 13 with one end fixed in the groove of the connecting shaft 12, at this time, the adapter shaft 801 drives the tying head 811 not to act on the bottle cover of the bottle body 17, and in addition, the bushing 802 and the tying head 811 are also in a high position due to the connection with the second cylindrical cam adapter block 6.

In addition, a stop collar 806 is provided in the base 807, and the stop collar 806 is used to limit the movement of the bushing 802 in the horizontal direction. In order to facilitate the disassembly and maintenance of the gland assembly 8, the connection seat 805 is fixedly connected with the upper end of the base 807 through the socket head cap screw 803, the lower end of the base 807 is in threaded connection with the upper end of the tying die sleeve 809, and the upper end of the connection seat 805 is fixedly connected with the lower end of the cylindrical cam adapter block 14 through two connecting blocks, so that the lower end of the shaft sleeve assembly 18 is fixedly connected with the upper end of the gland assembly 8. In addition, a fixed connection is achieved between the cylindrical cam adapter block 14 and the lower end of the mounting shaft 11 by means of an outer hexagonal bolt 804.

The working process of the capping mechanism of the utility model is as follows: the bottle bodies 17 such as penicillin bottles enter, the first cylindrical cam 15 and the second cylindrical cam 16 integrally and synchronously drive the shaft sleeve assembly 18 and the gland assembly 8 of the capping mechanism to descend for prepressing, the second cylindrical cam 16 continuously and independently drive the bundling head to descend for capping, and the return process of each part is opposite to the working process.

Specifically, the working principle of the capping mechanism of the utility model is as follows:

a. the capping mechanism rotates in the spiral grooves of the first cylindrical cam 15 and the second cylindrical cam 16 at the same angular speed according to the designed track through roller needle bearings 1 on the upper connecting rod 3 and the lower connecting rod 3.

b. The first cylindrical cam 15 and the second cylindrical cam 16 simultaneously drop by a certain value through the change of the track of the cylindrical cam, so that the pressing block 813 in the pressing cover assembly 8 is contacted with the bottle cap of the bottle body 17, and the bottle body 17 is pre-pressed through the resilience force of the compression spring 13; at the same time, the die blade 812 reaches the aluminum cap of the bottle 17 in an open-close state (see the state of the tying head of fig. 5).

c. The track height of the roller needle bearing 1 on the cylindrical cam I15 is unchanged, the cylindrical cam II 16 rotates, so that the roller needle bearing 1 continuously descends by a certain value along the track, the roller needle bearing 1 drives the connecting rod 3 to vertically move, the lower connecting rod 3 is connected with the cylindrical cam II connecting block 6, and the driving bushing 802 drives the binding head 811 to downwardly slide; during the downward sliding of the piercing head 811, the backlog causes the resettable piercing die blade 812 to collapse closed, and the piercing head 811 then continues to descend into contact with the closure (see piercing head condition of fig. 4), completing the piercing action by pressure.

d. After the capping is completed, the track of the first cylindrical cam 15 is unchanged, the track of the second cylindrical cam 16 is raised, the raised value is consistent with the lowered value when the cylindrical cam is independently lowered by c, the rolling head 811 is driven to be on the stage, and at the moment, the torsion spring 808 is contracted, so that the tying die blade 812 is opened again.

e. By changing the track of the cylindrical cam, the cylindrical cam I15 and the cylindrical cam II (16) rise by a certain value at the same time, the rising value is consistent with the falling value when the cylindrical cam II falls down b at the same time, and at the moment, the pressing block 813 is separated from contact with the bottle body 17 (see the tying head state of fig. 3), so that the whole capping process is completed, and the penicillin bottle flows into the next station.

Therefore, the utility model adopts a double-cylinder cam structure, and the cylinder cam I and the cylinder cam II synchronously drive the rolling cover structure to wholly descend (comprising a pre-compression mechanism) so that the pre-compression mechanism compresses the penicillin bottle; the first cylindrical cam does not rotate, and the second cylindrical cam drives the tying die blade in the gland assembly to descend and roll the bottle cap relative to the switching shaft in the pre-compression state, so that the multi-flap type knife edge is folded, and the capping action is completed. In the moving process, a bottle supporting sleeve rotating mechanism is not provided, and a multi-flap type knife edge formed by the penicillin bottle and the binding die blade does not rotate relatively, so that the capping efficiency is improved, and the generation of aluminum scraps is reduced.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The utility model provides a roll lid mechanism, its characterized in that includes cylinder cam one (15), cylinder cam two (16), multiunit coupling assembling, axle sleeve subassembly (18) and with gland subassembly (8) of axle sleeve subassembly (18) fixed connection, axle sleeve subassembly (18) and gland subassembly (8) are used for carrying out precompaction and roll the lid to the bottle lid of below bottle (17) through the ascending motion of vertical direction, cylinder cam one (15) drives a set of through free rotation coupling assembling drive axle sleeve subassembly (18) and gland subassembly (8) carry out the motion on the vertical direction to precompact the bottle lid, cylinder cam two (16) drive another group through free rotation tie up die sword (812) in coupling assembling drive gland subassembly (8) and roll the lid, the rotation motion of cylinder cam one (15) and cylinder cam two (16) are independent control respectively.

2. The capping mechanism as claimed in claim 1 wherein the piercing die blade (812) is of a multi-lobed knife edge configuration, there being no relative rotation between the bottle (17) and the piercing die blade (812) on the bottle holding mechanism.

3. The capping mechanism as claimed in claim 1 wherein the first cylindrical cam (15) and the second cylindrical cam (16) are rotatably disposed on the same fixed shaft.

4. A capping mechanism as claimed in any one of claims 1 to 3 wherein each set of said connection assemblies comprises roller needle bearings (1), bearing mounting bars (2) and a connecting bar (3), said roller needle bearings (1) being located in helical grooves of said first (15) and second (16) cylindrical cams, said roller needle bearings (1) being fixedly connected to said connecting bar (3) by means of bearing mounting bars (2), said connecting bar (3) being provided with a horizontal limit structure in the horizontal direction for limiting movement of said connecting bar (3) in the horizontal direction.

5. The capping mechanism as claimed in claim 4, wherein a plurality of roller needle bearings (1) are disposed in the spiral grooves of the first cylindrical cam (15) and the second cylindrical cam (16) to synchronously drive the corresponding plurality of sets of the sleeve assembly (18) and the capping assembly (8) to perform continuous capping.

6. The capping mechanism as claimed in claim 4 wherein the sleeve assembly (18) comprises a mounting shaft (11) and a connecting shaft (12), the connecting shaft (12) is fixed in the mounting shaft (11), a groove is formed in the lower end of the connecting shaft (12), a compression spring (13) is arranged in the groove, and the lower end of the mounting shaft (11) is fixedly connected with the connecting rods (3) in a group of the connecting assemblies through a cylindrical cam adapter block (14).

7. The capping mechanism as claimed in claim 6, wherein the capping assembly (8) comprises a connecting seat (805), a base (807) and a sealing die sleeve (809), the connecting seat (805) is fixedly connected with the base (807) and the sealing die sleeve (809) below in sequence, a through hole formed in the centers of the connecting seat (805), the base (807) and the sealing die sleeve (809) is internally provided with a transfer shaft (801), a bushing (802), a sealing head (811), a sealing die blade (812) and a pressing block (813), the sealing die blade (812) is arranged in a groove above the sealing die sleeve (809) through a torsion spring (808) and a retainer ring (810) for limiting, the sealing head (811) performs openable extrusion on the upper end of the sealing die blade (812) through downward movement, the transfer shaft (801) is fixedly connected with the pressing block (813) through a cavity in the bushing (802) and the sealing die sleeve (809) in sequence, the upper end of the transfer shaft (801) is fixedly connected with the upper end of the bushing (801) through a spring (811) and the upper end of the sealing die sleeve (811) is fixedly connected with the upper end of the bushing (13), the upper end of the bushing (802) is fixedly connected with the connecting rod (3) in the other group of connecting components through a cylindrical cam two-adapter block (6).

8. The capping mechanism as claimed in claim 7 wherein a stop collar (806) is provided in the base (807), the stop collar (806) being adapted to limit movement of the bushing (802) in a horizontal direction.

9. The capping mechanism as claimed in claim 7, wherein the connection base (805) is fixedly connected to an upper end of the base (807) by an inner hexagon screw (803), a lower end of the base (807) is screw-connected to an upper end of the tying die sleeve (809), and an upper end of the connection base (805) is fixedly connected to the cylindrical cam adapter block (14) by a connection block.

10. Capping mechanism according to claim 7, characterized in that the cylindrical cam adapter block (14) and the mounting shaft (11) are fixedly connected by means of an external hexagonal bolt (804).