CN106965963B

CN106965963B - Sealing device

Info

Publication number: CN106965963B
Application number: CN201710151097.XA
Authority: CN
Inventors: 谢作周; 韩明; 金永恩; 周斌
Original assignee: Zhejiang Wei Chi Light Industry Machinery Co ltd
Current assignee: Zhejiang Wei Chi Light Industry Machinery Co ltd
Priority date: 2017-03-14
Filing date: 2017-03-14
Publication date: 2022-08-12
Anticipated expiration: 2037-03-14
Also published as: CN106965963A

Abstract

A sealing device, the main shaft realizes the rotation of a cap screwing mechanism through the transmission of a cap screwing driving gear and a cap screwing driven gear, and the main shaft realizes the rotation of a tank positioning mechanism through the transmission of a tank driving gear and a tank driven gear; meanwhile, the main shaft enables the upper rotating body and the lower rotating body to revolve through a transmission mechanism below the main shaft; the oil supply mechanism at the lower part of the power shaft provides lubricating oil with certain pressure for the transmission part in the oil tank, and the tank body positioning mechanism realizes up-and-down motion under the action of the cylindrical cam. During operation, the cover is positioned and rotated at the cover screwing mechanism, the tank body is positioned and rotated at the tank body positioning mechanism and moves up and down, and when the tank body is combined with the cover, the cover is enabled to realize the working process of seaming and flattening through the different sealing knives of the sealing mechanism. The device makes the sealing device simple in structure and better in sealing effect by changing the power transmission route and improving the sealing mechanism.

Description

Sealing device

Technical Field

The invention relates to a packaging machine, in particular to a sealing device.

Background

At present, a lot of food packages at home and abroad adopt tinplate cans, common tinplate cans are in sealing contact with the cans, a sealing device can be adopted in the packaging process, and due to the influences of parameters such as the size and the shape of the cans and the like and different sealing principles, the cans have various types of sealing devices at home and abroad, such as linear type and rotating disc type, and the cans are mostly used.

For the rotating disc type sealing device, the power transmission at the present stage adopts a method from bottom to top, a power mechanism is arranged below the rotating disc, the rotating disc revolves through the transmission of gears, then an intermediate shaft is utilized to enable the positioning mechanisms of the tank body and the cover to rotate, the transmission route is long, and the structure is complex.

The sealing device provided by the invention has the advantages that the structure of the device is compact by changing the path of power transmission, a lubricating system is added, the sealing mechanism is improved, the device is simplified, and the sealing effect is obviously improved.

Disclosure of Invention

Aiming at the defects in the problems, the invention provides a sealing device.

To achieve the above object, the present invention provides a sealing device comprising:

the upper surface of the main shaft is fixedly connected with a main shaft top gear, and the lower surface of the main shaft is fixedly connected with a main shaft bottom gear;

the power shaft is fixedly connected with a power gear, the power gear drives a main shaft top gear, and an oil supply mechanism is arranged below the power shaft;

the oil supply mechanism is arranged in the oil tank and comprises an oil storage sleeve fixedly arranged at the bottom of the oil tank, the lower part of the power shaft is processed into a T-shaped thread, and the center of the power shaft is processed into an oil supply pipe;

the capping driving gear is fixedly connected to the upper part of the main shaft through a key, the capping driving gear drives the capping driven gear to enable the capping mechanism to rotate automatically, and the capping mechanism is uniformly distributed on the periphery of the upper rotating body;

the tank body driving gear is fixedly connected to the lower part of the main shaft through a key, the tank body driving gear drives the tank body driven gear to enable the tank body positioning mechanism to rotate, and the tank body positioning mechanism is uniformly distributed around the lower rotating body and corresponds to the cap screwing mechanism one by one;

the lower rotating body is fixedly connected with the upper rotating body through a connecting sleeve;

the cylindrical cam is fixedly arranged on the working table surface;

the main shaft bottom gear is connected with a lower rotating body connecting gear through a transition mechanism, and the lower rotating body connecting gear is fixedly connected with the lower rotating body, so that the main shaft bottom gear drives the lower rotating body and the upper rotating body to realize revolution;

the sealing mechanism is arranged on the upper rotating body and corresponds to the cap screwing mechanism; the sealing mechanism comprises a sealing cam and a sealing knife mechanism.

As a further improvement of the invention, an oil inlet chamfer is processed at the upper part of the oil storage sleeve.

In a further improvement of the invention, a flared oil supply port is formed at a lower portion of the power shaft and communicates with the oil supply pipe.

As a further improvement of the invention, the transition mechanism comprises a transition shaft mounted on the working table, the upper part of the transition shaft is fixedly connected with an upper transition gear, the upper transition gear is connected with the lower rotating body connecting gear, the lower part of the transition shaft is fixedly connected with a lower transition gear, and the lower transition gear is connected with the main shaft bottom gear.

The sealing cam is a circular ring, an inner groove is processed in the circular ring, the inner groove is divided into three sections along the circumferential direction, namely a flattening section, a releasing section and a seaming section, the diameter of the flattening section is the smallest, the diameter of the seaming section is the largest, and the flattening section, the releasing section and the seaming section are in smooth transition through circular arcs.

As a further improvement of the invention, the flattening section is movable, the outer side of the flattening section is connected with a movable frame, and the movable frame is connected with the sealing cam through a hinge.

As a further improvement of the invention, the inner tank is divided in the axial direction into an inner tank upper portion and an inner tank lower portion.

As a further improvement of the invention, the sealing cutter mechanism comprises a vertical sealing cutter shaft, the upper part of the sealing cutter shaft is connected with an upper bracket through an upper bracket seat, a lower bearing and an upper bearing are arranged on the upper bracket, the lower part of the sealing cutter shaft is connected with a lower bracket, and a curling cutter and a flattening cutter are arranged on the lower bracket.

As a further improvement of the invention, the upper bearing is in rolling contact with the upper part of the inner tank, and the lower bearing is in rolling contact with the lower part of the inner tank.

The invention has the beneficial effects that:

1. by changing the power transmission path, the power transmission is more reasonable and reliable, and the structure of the device is simplified.

2. The structure of the tail of the power shaft is changed into a T-shaped thread, the T-shaped thread and the oil storage sleeve rotate relatively along with the rotation of the power shaft, and lubricating oil in the thread generates pressure and flows out through the oil supply pipe to lubricate a transmission system.

3. The sealing effect is better through the improvement of the sealing mechanism.

4. The outside and the adjustable shelf connection of flattening section, the adjustable shelf passes through the hinge and seals the cam and be connected, makes the device debugging convenient, facilitates for the quality that short-term test sealed.

Drawings

FIG. 1 is a front view of a closure of the present invention;

FIG. 2 is a front sectional view of the part oiling mechanism;

FIG. 3 is a bottom view of the component closure cam;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is an enlarged view of position B of FIG. 4;

FIG. 6 is a bottom view of the cradle of FIG. 3 in a disengaged condition;

FIG. 7 is a front view of the component sealing knife mechanism;

FIG. 8 is a perspective view of the component sealing knife mechanism;

FIG. 9 is a schematic illustration of a transmission path;

FIG. 10 is a view showing the positional relationship between the upper and lower bearings and the upper and lower portions of the inner tank during seaming;

FIG. 11 is a view showing the positional relationship between the upper and lower bearings and the upper and lower portions of the inner tank during the flattening process.

In the figure: 1. an oil tank; 2. a power gear; 3. an oil supply mechanism; 31. the bottom of the oil tank; 32. an oil storage sleeve; 33. oil inlet chamfering; 34. a power shaft; 35. an oil supply pipe; 36. t-shaped threads; 37. an oil supply port; 4. a main shaft top gear; 5. a main shaft; 6. a sealing mechanism; 61. a sealing cam; 611. an inner tank; 612. flattening the section; 613. a disengagement section; 614. a seaming section; 615. the upper part of the inner groove; 616. the inner lower part; 62. a sealing knife mechanism; 621. a sealing cutter shaft; 622. an upper bracket seat; 623. an upper bracket; 624. a lower bearing; 625. an upper bearing; 626. a lower bracket; 627. flattening a cutter; 628. a roll-sealing knife; 63. a movable frame; 64. a hinge; 7. a cap-screwing driven gear; 8. a cap-rotating driving gear; 9. a cap screwing mechanism; 10. connecting sleeves; 11. a tank positioning mechanism; 12. a lower rotor; 13. a tank body driven gear; 14. a tank body driving gear; 15. a cylindrical cam; 16. a work table; 17. the lower rotating body is connected with a gear; 18. a main shaft bottom gear; 19. a lower transition gear; 20. a transition shaft; 21. an upper transition gear; 22. and rotating the rotor.

Detailed Description

As shown in fig. 1, a sealing device according to an embodiment of the present invention includes: the upper surface of the main shaft 5 is fixedly connected with a main shaft top gear 4, and the lower surface of the main shaft 5 is fixedly connected with a main shaft bottom gear 18; the power shaft 34 is fixedly connected with the power gear 2, the power gear 2 drives the main shaft top gear 4, and the oil supply mechanism 3 is arranged below the power shaft 34; the oil supply mechanism 3 is installed in the oil tank 1.

The cap screwing driving gear 8 is fixedly connected to the upper part of the main shaft 5 through a key, the cap screwing driving gear 8 drives the cap screwing driven gear 7 to enable the cap screwing mechanism 9 to rotate (the cap screwing mechanism rotates around the central shaft of the cap screwing mechanism to rotate), and the cap screwing mechanism 9 is uniformly distributed on the periphery of the upper rotating body 22; the tank driving gear 14 is fixedly connected to the lower part of the main shaft 5 through a key, the tank driving gear 14 drives the tank driven gear 13 to enable the tank positioning mechanism 11 to rotate (the rotation around the central shaft of the tank positioning mechanism is the rotation), and the tank positioning mechanism 11 is uniformly distributed around the lower rotating body 12 and corresponds to the cap screwing mechanism 9 one by one;

the lower rotating body 12 and the upper rotating body 22 are fixedly connected through a connecting sleeve 10; the cylindrical cam 15 is fixedly arranged on the working table surface 16, the tank body positioning mechanism is connected with the cylindrical cam through a jacking rod and a jacking wheel below the tank body positioning mechanism, and the cylindrical cam enables the tank body positioning mechanism to revolve and simultaneously realize up-and-down movement.

The main shaft bottom gear 18 is connected with the lower rotating body connecting gear 17 through a transition mechanism, the transition mechanism comprises a transition shaft 20 installed on the working table surface 16, the upper portion of the transition shaft 20 is fixedly connected with an upper transition gear 21, the upper transition gear 21 is connected with the lower rotating body connecting gear 17, the lower portion of the transition shaft 20 is fixedly connected with a lower transition gear 19, and the lower transition gear 19 is connected with the main shaft bottom gear 18. Lower rotor connecting gear 17 is fixedly connected with lower rotor 12, so that main shaft bottom gear 18 drives lower rotor 12 and upper rotor 22 to revolve (revolve around the main shaft);

the sealing mechanism 6 is arranged on the upper rotating body 22 and corresponds to the cap screwing mechanism 9; the sealing mechanism 6 includes a sealing cam 61 and a sealing knife mechanism 62.

As shown in fig. 2, the oil supply mechanism 3 includes an oil storage sleeve 32 fixedly installed at the bottom 31 of the oil tank, a T-shaped thread 36 is formed at the lower portion of the power shaft 34, an oil supply pipe 35 is formed at the center of the power shaft 34, and an oil inlet chamfer 33 is formed at the upper portion of the oil storage sleeve 32, so that lubricating oil in the oil tank can conveniently enter the oil storage sleeve. A flared oil supply port 37 formed in the lower portion of the power shaft 34 communicates with the oil supply pipe 35. Through the rotation of the power shaft, the T-shaped threads at the lower part of the power shaft and the oil storage sleeve rotate relatively, lubricating oil in the threads generates certain pressure to flow to the bottom of the oil storage sleeve, and the lubricating oil with certain pressure flows out of the oil supply pipe to lubricate a transmission system.

As shown in fig. 3 and 6, the sealing cam 61 is a circular ring, an inner groove 611 is formed inside the circular ring, the inner groove 611 is divided into three sections along the circumferential direction, namely, a flattening section 612, a releasing section 613 and a seaming section 614, the diameter of the flattening section 612 is the smallest, the diameter of the seaming section 614 is the largest, and the flattening section 612, the releasing section 613 and the seaming section 614 are in smooth transition through circular arcs. The flattening section 612 is movable, the outer side of the flattening section 612 is connected with the movable frame 63, and the movable frame 63 is connected with the sealing cam 61 through a hinge 64.

As shown in fig. 4-5, the inner groove 611 is divided in the axial direction into an inner groove upper portion 615 and an inner groove lower portion 616.

As shown in fig. 7 and 8, the sealing knife mechanism 62 includes a vertical sealing knife shaft 621, an upper portion of the sealing knife shaft 621 is connected to an upper support 623 through an upper support seat 622, a lower bearing 624 and an upper bearing 625 are mounted on the upper support, a lower support 626 is connected to a lower portion of the sealing knife shaft 621, and a seaming knife 628 and a flattening knife 627 are mounted on the lower support 626.

Upper bearing 625 is in rolling contact with inner groove upper portion 615 and lower bearing 624 is in rolling contact with inner groove lower portion 616.

By changing the power transmission path, the power transmission is more reasonable and reliable, and the structure of the device is simplified. The structure of the tail of the power shaft is changed into a T-shaped thread, the T-shaped thread and the oil storage sleeve rotate relatively along with the rotation of the power shaft, and lubricating oil in the thread generates pressure and flows out through the oil supply pipe to lubricate a transmission system. The sealing effect is better through the improvement of the sealing mechanism.

The outside and the adjustable shelf connection of flattening section, the adjustable shelf passes through the hinge and seals the cam and be connected, makes the device debugging convenient, and the quality of sealing for the short-term test facilitates.

In particular use, the invention will be described separately with reference to the accompanying drawings for the convenience of understanding;

first, the operation of the sealing device is described:

the power shaft drives the main shaft to rotate through the gear, the gear at the bottom of the main shaft drives the lower rotating body and the upper rotating body to revolve (the revolution is realized by rotating around the main shaft) through the transition mechanism, the cover rotating mechanisms are uniformly and equally arranged in the upper rotating body (for example, a 32-head sealing device represents 32 cover rotating mechanisms), the tank body positioning mechanism corresponds to the cover rotating mechanisms and is arranged in the lower rotating body, the tank body reaches the tank body positioning mechanism through the external conveying mechanism to be positioned (the positioning generally adopts a bottom convex shoulder), and the cover reaches the cover rotating mechanism through the external conveying mechanism to be positioned (the positioning generally adopts a magnet); the main shaft enables the cap screwing mechanism to rotate (the rotation around the central shaft of the cap screwing mechanism is rotation) through the cap screwing driving gear and the cap screwing driven gear; the main shaft enables the tank positioning mechanism to rotate through the tank driving gear and the tank driven gear; meanwhile, the tank body positioning mechanism realizes up-and-down motion through the cylindrical cam (see figure 9). The purpose of rotation is as follows: the cover realizes revolution while rotating, and the tank body realizes up-and-down movement while rotating and revolving.

Introduction of the lubrication process:

power is transmitted by the motor, the rotating speed of the power shaft is high, speed reduction and direction change are achieved through the gear in the oil tank, and all transmission parts need to be lubricated. The structure of the tail part of the power shaft is changed into the T-shaped thread, the T-shaped thread and the oil storage sleeve rotate relatively along with the rotation of the power shaft, lubricating oil in the thread generates pressure and flows to the bottom of the oil storage sleeve, and the lubricating oil with certain pressure flows out of the oil supply pipe to lubricate a transmission system (see figure 2).

Introduction of the sealing process (see fig. 3, 7, 8):

when the tank body and the cover are fed, the tank body positioning mechanism is in a low position, a certain interval is reserved between the cover and the tank body, the upper bearing and the lower bearing of the sealing knife mechanism are positioned at the disengagement section of the inner groove (the sealing cam is fixedly installed, the sealing knife mechanism is fixedly installed in the upper rotating body and revolves together), the rolling knife and the flattening knife do not touch the edge of the cover, and the sealing mechanism does not work.

When the tank body positioning mechanism moves upwards through the cylindrical cam, and the tank body moves upwards to push the cover, the upper bearing moves to the seaming section, the diameter of the seaming section is increased, the upper bearing moves outwards under the action of the inner side of the upper part of the inner tank, the seaming cutter moves inwards due to the fact that the sealing cutter shaft only rotates around the center, the cutter edge of the seaming cutter is in contact with the edge of the cover, the edge of the cover is curled, meanwhile, the upper bearing is in close contact with the inner side of the upper part of the inner tank due to the reaction force of seaming, the upper bearing is in contact with the inner side of the upper part of the inner tank due to the fact that the diameter of the inner side of the upper part of the inner tank is slightly larger than the diameter of the inner side of the lower part of the inner tank, and the lower bearing is not in contact with the lower part of the inner tank in the seaming process (see figure 10).

When the upper bearing moves to the flattening section, the diameter of the flattening section is reduced, the lower bearing moves inwards under the action of the outer side of the lower part of the inner groove, the flattening knife moves inwards due to the fact that the sealing knife shaft only rotates around the center, the knife edge of the flattening knife is in contact with the edge of the cover, the seaming edge of the cover is flattened, meanwhile, the lower bearing is in close contact with the outer side of the lower part of the inner groove due to the flattening reaction force, and the upper bearing is not in contact with the upper part of the inner groove in the flattening process because the outer diameter of the lower part of the inner groove is slightly smaller than the outer diameter of the upper part of the inner groove (see figure 11).

The double bearings and the diameter change of the upper part and the lower part of the inner groove are adopted, so that a bearing is always contacted with one side surface in the process of seaming and flattening, and the phenomenon of jumping cannot occur when the seaming cutter and the flattening cutter are contacted with the edge of the cover.

Installation, introduction of debugging process:

the sealing process of the can body and the cover is related to the positions of the upper bearing and the lower bearing in the inner groove, namely a releasing section (not working), a seaming section (seaming) and a flattening section (flattening), when the sealing cam is in a closing state (see figure 3), the working state is normal, if the sealing effect is not good (such as air leakage, a raised edge and the like), the problem of the seaming section or the flattening section cannot be judged at the moment. After outwards rotating the adjustable shelf along the hinge, the diameter of the flattening section is kept consistent with the diameter of the releasing section, the adjustable shelf is fixed, the sealing process of the tank body and the cover is the releasing section (out of work) -the seaming section (seaming), the sealing effect is detected, and the flattening section is normally judged to be in a problem. The movable installation of the flattening section is adopted, and a quick elimination method is provided for analyzing abnormal sealing phenomena.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A closure device, comprising: the upper surface of the main shaft (5) is fixedly connected with a main shaft top gear (4), and the lower surface of the main shaft (5) is fixedly connected with a main shaft bottom gear (18);

the power shaft (34) is fixedly connected with a power gear (2), the power gear (2) drives the main shaft top gear (4), and an oil supply mechanism (3) is installed below the power shaft (34);

the oil supply mechanism (3) is arranged in the oil tank (1) and comprises an oil storage sleeve (32) fixedly arranged at the bottom (31) of the oil tank, the lower part of the power shaft (34) is processed into a T-shaped thread (36), and the center of the power shaft (34) is processed into an oil supply pipe (35);

the cover screwing mechanism comprises a cover screwing driving gear (8), the cover screwing driving gear (8) is fixedly connected to the upper portion of the main shaft (5) through a key, the cover screwing driving gear (8) drives a cover screwing driven gear (7) to enable a cover screwing mechanism (9) to rotate, and the cover screwing mechanism (9) is uniformly distributed on the periphery of an upper rotating body (22);

the tank driving gear (14) is fixedly connected to the lower portion of the main shaft (5) through a key, the tank driving gear (14) drives the tank driven gear (13) to enable the tank positioning mechanism (11) to rotate, and the tank positioning mechanism (11) is uniformly distributed around the lower rotating body (12) and corresponds to the cap screwing mechanism (9) one by one;

the lower rotating body (12) and the upper rotating body (22) are fixedly connected through a connecting sleeve (10);

the cylindrical cam (15), the said cylindrical cam (15) is fixedly mounted on work level (16);

the spindle bottom gear (18) is connected with a lower rotating body connecting gear (17) through a transition mechanism, the lower rotating body connecting gear (17) is fixedly connected with the lower rotating body (12), and the spindle bottom gear (18) drives the lower rotating body (12) and the upper rotating body (22) to realize revolution;

a sealing mechanism (6), wherein the sealing mechanism (6) is arranged on the upper rotating body (22) and corresponds to the cap screwing mechanism (9); the sealing mechanism (6) comprises a sealing cam (61) and a sealing knife mechanism (62);

the sealing cam (61) is a circular ring, an inner groove (611) is formed in the circular ring, the inner groove (611) is divided into three sections, namely a flattening section (612), a releasing section (613) and a seaming section (614) along the circumferential direction, the diameter of the flattening section (612) is minimum, the diameter of the seaming section (614) is maximum, and circular arc smooth transition is formed among the flattening section (612), the releasing section (613) and the seaming section (614);

the flattening section (612) is movable, the outer side of the flattening section (612) is connected with the movable frame (63), and the movable frame (63) is connected with the sealing cam (61) through a hinge (64);

the inner groove (611) is divided in an axial direction into an inner groove upper portion (615) and an inner groove lower portion (616).

2. A closure as claimed in claim 1, wherein: and an oil inlet chamfer (33) is machined at the upper part of the oil storage sleeve (32).

3. A closure as claimed in claim 1, wherein: and a flared oil supply port (37) formed in the lower part of the power shaft (34) is communicated with the oil supply pipe (35).

4. A closure as claimed in claim 1, wherein: the transition mechanism comprises a transition shaft (20) arranged on the working table top (16), the upper portion of the transition shaft (20) is fixedly connected with an upper transition gear (21), the upper transition gear (21) is connected with the lower rotating body connecting gear (17), the lower portion of the transition shaft (20) is fixedly connected with a lower transition gear (19), and the lower transition gear (19) is connected with the main shaft bottom gear (18).

5. A closure as claimed in claim 1, wherein: seal sword mechanism (62) including the vertically arbor (621) that seals, seal the upper portion of arbor (621) and pass through upper bracket seat (622) and connect upper bracket (623), upper bracket installation lower bearing (624) and upper bearing (625), the sub-unit connection lower carriage (626) of arbor (621) seals, install on lower carriage (626) and roll up sword (628) and flatten sword (627).

6. A closure as claimed in claim 5, wherein: the upper bearing (625) is in rolling contact with an upper portion (615) of the inner tank and the lower bearing (624) is in rolling contact with a lower portion (616) of the inner tank.