CN211919203U - Sealing mechanism - Google Patents

Abstract

The utility model discloses a seal mechanism, including base, inner arm, outer arm, interior seal piece, outer seal piece and be used for driving the link mechanism of inner arm and outer arm motion in opposite directions, the fixed mount pad that is provided with of upside of base is provided with driving motor on the mount pad, and the fixed eccentric shaft that is provided with on driving motor's the output shaft, the fixed drive seat that is provided with on the outer arm, the cooperation on the drive seat the eccentric shaft is provided with the spout. The utility model discloses on the basis of mechanism is sealed to the tradition, actuating mechanism's structure and position have been changed, and the reasonable size that reduces realizes the modularization production to reduce actuating mechanism's load, reached energy-conserving purpose.

Description

Sealing mechanism

Technical Field

The utility model relates to the technical field of packaging machinery, especially, relate to a sealing mechanism.

Background

The invention patent specification with the publication number of 'CN 105730780B' discloses a butt joint mechanism, which comprises a base, an inner arm, an outer arm, an inner seal block, an outer seal block and a link mechanism for driving the inner arm and the outer arm to move towards each other and butt joint; the inner sealing block is arranged at the front end of the inner arm, the outer sealing block is arranged at the front end of the outer arm, and the inner sealing block and the outer sealing block are arranged oppositely; the inner arm and the outer arm are horizontally arranged on the base in a sliding manner; the connecting rod mechanism comprises a first connecting rod, a second connecting rod and a third connecting rod which are sequentially hinged end to end, and a power mechanism for driving the first connecting rod to swing back and forth; the middle part of a third connecting rod is hinged to the base, one end of the third connecting rod is connected with the second connecting rod, the other end of the third connecting rod is connected with one end of a fourth connecting rod, the other end of the fourth connecting rod is hinged to the inner arm, a power mechanism drives the fourth connecting rod to swing back and forth through the first connecting rod, the second connecting rod and the third connecting rod in sequence, and then the inner arm drives the inner seal block to be close to or far away from the outer seal block; the front side and/or the rear side of the second connecting rod are/is provided with a groove, the outer arm is provided with a cam bearing, the cam bearing is rotatably clamped in the groove, the outer arm is hinged with the second connecting rod through the cam bearing and the groove, and the second connecting rod further drives the outer sealing block to be close to or far away from the inner sealing block through the outer arm.

In foretell structure, entire system's power source is for driving the first link and carry out wobbling power unit, because structural reason, power unit's load is great, and is not energy-conserving enough to power unit sets up the side at the base, and the width size that leads to whole mechanism is great, is unfavorable for highly integrated design.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to avoid prior art's weak point, provide a mechanism seals to effectively solve the weak point that exists among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a sealing mechanism, includes base, inner arm, outer arm, interior sealing piece, outer sealing piece and is used for driving the link mechanism of inner arm and outer arm motion in opposite directions, interior sealing piece sets up and fixed the setting respectively on inner arm and outer arm with outer sealing piece relatively, but inner arm and outer arm horizontal slip's setting are on the base, link mechanism is including first connecting rod, second connecting rod, third connecting rod and the fourth connecting rod of end to end articulated in proper order, first connecting rod is articulated with the base, first connecting rod and third connecting rod parallel arrangement, the middle part and the base of third connecting rod are articulated, and the fourth connecting rod is articulated with the inner arm, is provided with buffer spring between fourth connecting rod and the inner arm, be provided with the draw-in groove on the second connecting rod, be provided with the driving piece on the outer arm, the driving piece clamp in the draw-in groove, its characterized in that: the upper side of the base is fixedly provided with a mounting seat, a driving motor is arranged on the mounting seat, an eccentric shaft is fixedly arranged on an output shaft of the driving motor, a driving seat is fixedly arranged on the outer arm, and a sliding groove is formed in the driving seat and matched with the eccentric shaft.

Furthermore, a horizontal guide rail is fixedly arranged on the outer arm, and a first sliding block and a second sliding block are respectively arranged on the inner arm and the base in a manner of being matched with the horizontal guide rail.

Furthermore, the inner arm is provided with a movable groove, a driving block is horizontally arranged in the movable groove in a sliding manner, the buffer spring is arranged between the side wall of the movable groove and the driving block, and the driving block is hinged to the fourth connecting rod.

Furthermore, a horizontal sliding rod is arranged in the movable groove in a matched mode with the driving block, and the buffer spring is sleeved on the horizontal sliding rod.

Further, the driving member is a cam bearing.

Furthermore, a cover plate is detachably arranged on the outer arm, and the cam bearing is installed at the bottom of the cover plate.

Further, a bearing is arranged on the eccentric shaft in a matched manner with the sliding groove.

The above technical scheme of the utility model following beneficial effect has: the utility model discloses on the basis of mechanism is sealed to the tradition, actuating mechanism's structure and position have been changed, and the reasonable size that reduces realizes the modularization production to reduce actuating mechanism's load, reached energy-conserving purpose.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a schematic sectional view of an embodiment of the present invention;

fig. 3 is a schematic structural view of the base, the inner arm and the link mechanism according to the embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

fig. 5 is a schematic structural view of an outer arm according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a cover plate and a cam bearing according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram (hidden mounting seat) of an embodiment of the present invention;

fig. 8 is a partial enlarged view of fig. 7 at B.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-8, the sealing mechanism of this embodiment includes a base 1, an inner arm 2, an outer arm 3, an inner sealing block 4, an outer sealing block 5, and a link mechanism for driving the inner arm 2 and the outer arm 3 to move in opposite directions, the inner sealing block 4 and the outer sealing block 5 are disposed opposite to each other and respectively fixed on the inner arm 2 and the outer arm 3, the inner arm 2 and the outer arm 3 are disposed on the base 1 in a horizontally slidable manner, the link mechanism includes a first link 6, a second link 7, a third link 8, and a fourth link 9 sequentially hinged end to end, the first link 6 is hinged to the base 1, the first link 6 is disposed in parallel with the third link 8, a middle portion of the third link 8 is hinged to the base 1, the fourth link 9 is hinged to the inner arm 2, a buffer spring 10 is disposed between the fourth link 9 and the inner arm 2, a slot 7a is disposed on the second link 7, a driving member 11 is disposed on the outer arm 3, the driving member 11 is clamped in the clamping groove 7a, the above structures are all prior art, and the specific working principle and the unexplained structure are all described in detail in the patent specification with the publication number "CN 105730780B", and are not described herein again.

The utility model discloses on the basis of above-mentioned structure, changed actuating mechanism's structure and position, reasonable downsizing realizes the modularization production to reduce actuating mechanism's load, reach energy-conserving purpose, specific institutional advancement as follows:

the upside of base 1 is fixed and is provided with mount pad 12, is provided with driving motor 13 on the mount pad 12, and driving motor 13 sets up along vertical direction, and the fixed eccentric shaft 14 that is provided with on driving motor 13's the output shaft, and the fixed drive seat 15 that is provided with on outer arm 3, the cooperation eccentric shaft 14 is provided with spout 15a on the drive seat 15.

The utility model discloses a theory of operation does: the driving motor 13 rotates through the driving eccentric shaft 14, the horizontal movement of the outer arm 3 is realized by matching with the driving shaft 15, meanwhile, the driving piece 11 arranged on the outer arm 3 drives the connecting rod mechanism to act, the synchronous movement of the inner arm 2 is realized, the fitting and separating actions of the inner sealing block 4 and the outer sealing block 5 are further realized, and when the inner sealing block 4 and the outer sealing block 5 are fitted together, the buffer spring 10 is compressed, so that the rigid collision is avoided, and the service life is prolonged.

The outer arm 3 is fixedly provided with a horizontal guide rail 16, and the inner arm 2 and the base 1 are respectively provided with a first sliding block 17 and a second sliding block 18 which are matched with the horizontal guide rail 16.

As shown in fig. 4, the inner arm 2 is provided with a movable slot 2a, a driving block 19 is horizontally arranged in the movable slot 2a in a sliding manner, the buffer spring 10 is arranged between the side wall of the movable slot 2a and the driving block 19, and the driving block 19 is hinged with the fourth connecting rod 9; the movable groove 2a is internally provided with a horizontal sliding rod 20 matched with the driving block 19, and the buffer spring 10 is sleeved on the horizontal sliding rod 20.

The driver 11 is a cam bearing.

The outer arm 3 is detachably provided with a cover plate 21, and a cam bearing is mounted at the bottom of the cover plate 21.

The eccentric shaft 14 is provided with a bearing 14a in cooperation with the slide groove 15 a.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (7)

1. The utility model provides a sealing mechanism, includes base, inner arm, outer arm, interior sealing piece, outer sealing piece and is used for driving the link mechanism of inner arm and outer arm motion in opposite directions, interior sealing piece sets up and fixed the setting respectively on inner arm and outer arm with outer sealing piece relatively, but inner arm and outer arm horizontal slip's setting are on the base, link mechanism is including first connecting rod, second connecting rod, third connecting rod and the fourth connecting rod of end to end articulated in proper order, first connecting rod is articulated with the base, first connecting rod and third connecting rod parallel arrangement, the middle part and the base of third connecting rod are articulated, and the fourth connecting rod is articulated with the inner arm, is provided with buffer spring between fourth connecting rod and the inner arm, be provided with the draw-in groove on the second connecting rod, be provided with the driving piece on the outer arm, the driving piece clamp in the draw-in groove, its characterized in that: the upper side of the base is fixedly provided with a mounting seat, a driving motor is arranged on the mounting seat, an eccentric shaft is fixedly arranged on an output shaft of the driving motor, a driving seat is fixedly arranged on the outer arm, and a sliding groove is formed in the driving seat and matched with the eccentric shaft.

2. A closure mechanism according to claim 1, wherein: the outer arm is fixedly provided with a horizontal guide rail, and the inner arm and the base are respectively provided with a first sliding block and a second sliding block in a matching mode with the horizontal guide rail.

3. A closure mechanism according to claim 1, wherein: the inner arm is provided with a movable groove, a driving block is horizontally arranged in the movable groove in a sliding mode, the buffer spring is arranged between the side wall of the movable groove and the driving block, and the driving block is hinged to the fourth connecting rod.

4. A closure mechanism according to claim 3, wherein: the movable groove is internally provided with a horizontal sliding rod matched with the driving block, and the buffer spring is sleeved on the horizontal sliding rod.

5. A closure mechanism according to claim 1, wherein: the driving piece is a cam bearing.

6. A closure mechanism according to claim 5, wherein: the outer arm is detachably provided with a cover plate, and the cam bearing is installed at the bottom of the cover plate.

7. A closure mechanism according to claim 1, wherein: and a bearing is arranged on the eccentric shaft in a matching way with the sliding chute.

Images