JPH076988Y2 - Can lid winding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a can lid winding device for winding a can lid around a can container.

(Prior Art) Conventionally, there is known a winding device that conveys a can container having a can lid covered thereon and winds the can lid around the can container during the transportation. This type of tightening device includes, for example, a rotatable seaming chuck, a rotatable can container carrying means, and a seaming rail provided along a carrying direction when a can lid and a can container are carried. The can lid is held on the seaming chuck to be crowned on the can container, the can lid and the can container are conveyed, and the can lid is wound around the can container by the seaming rail. When the can lid is wound and fastened by the seaming rail, the seaming chuck is rotationally driven to rotate the can lid and the can container.
In order to drive the can lid to rotate, a fixed gear is usually provided along a seaming rail, and a gear that meshes with the fixed gear is provided on a rotatable shaft, and the seaming chuck is attached to the shaft. Is provided.

As a result, when the can lid held by the seaming chuck is pressed against the seaming rail, the gear on the side of the seaming chuck is engaged with the fixed gear, and the gear is moved as the can lid and the can container are conveyed. Is rotationally driven by a fixed gear, the seaming chuck is rotationally driven together with the shaft, and the can lid held by the seaming chuck is also rotated.

In this way, the winding device presses the seaming rail while rotating the can lid to perform the winding tightening.

However, in the hoisting device, at the time of starting when the seaming chuck is rotationally driven by meshing the gear and the fixed gear, the weight of the gear, the shaft and the seaming chuck is attached to the tip of the gear and the fixed gear. Since a load is applied by the static moment of inertia corresponding to the above, there is a disadvantage that the gear and the fixed gear are easily damaged and durability is reduced.

In addition, in order to change the can diameter of the can container to be wound, when replacing with a seaming chuck that matches the diameter of the can lid to be wound on the can container, the gear and the seaming chuck have the same rotation speed. Since it is preferably rotated, it is necessary to replace the gears together with the replacement of the seaming chuck, which is a troublesome task.

(Problems to be Solved by the Invention) In order to eliminate such an inconvenience, the present invention improves durability of a rotary drive mechanism of a seaming chuck for winding a can lid and easily changes a can diameter. It is an object of the present invention to provide a can lid winding device that can be adapted to the above.

(Means for Solving the Problems) In order to achieve such an object, the present invention is to rotatably hold and convey a cylindrical can container capped with a can lid held on a rotatable seaming chuck. While, in the winding device for winding the can lid, a fixed gear is provided along the moving direction of the seaming chuck, and a gear that meshes with the fixed gear and rolls is coaxially provided integrally with the seaming chuck.
It is characterized in that the seaming chuck is rotatably provided on the end of the support shaft via a bearing.

(Operation) By the above means, the seaming chuck and the gear can be integrally provided to reduce the weight, and the load due to the static moment of inertia generated at the start of the rotational drive can be reduced. Further, when changing the can diameter, the gear can be replaced at the same time as the replacement of the seaming chuck.

(Embodiment) Next, an embodiment of the present invention will be described in detail with reference to FIGS.

FIG. 1 is a schematic view showing an entire canning manufacturing apparatus including the present embodiment, FIG. 2 is an explanatory enlarged plan view of a part of the present embodiment, and FIG. 3 is a sectional view taken along line III-III of FIG. FIG. 4 and FIG. 4 are partially enlarged explanatory views.

In this embodiment A, the can lid Y is fastened to the can container X continuously supplied from the filling device B for filling the contents into the can container X as shown in the first drawing.

Reference numeral 1 denotes a first can container conveying means for linearly and horizontally conveying a can container X filled with contents supplied from a filling device B at a predetermined speed, and 2 a can container which is endlessly rotated in a substantially elliptical shape. The second can-container conveying means 3 for conveying X, and the second can-container conveying means 2 for conveying X
A can lid conveying means for conveying the can lid Y provided above the can lid conveying means 4, a can lid holding means for holding the can lid Y on the can lid conveying means 3, and 5 a second can container conveying means 2 Shows a winding means provided in parallel with the forward transport direction for linearly transporting the can container X.

The first can-container conveying means 1 is provided so as to extend linearly from the discharge position of the filling device B as shown in the first illustration and to run in parallel with the second can-container conveying means 2. The first can container transporting means 1 is provided with claw pieces 7 that are rotatably arranged at equal intervals and that clamp the body of the can container X from the front and the rear in the transport direction. The claw piece 7 is provided so as to be swingable in the vertical direction, and the holding of the can container X can be released. When the can lid Y is tightly wound around the can container X, as shown by the solid line in FIG. 3, the claw piece 7 abuts on the rail 8 and moves upward to release the engagement with the can container X.

The first can container transporting means 1 is provided with a support plate 9 for horizontally supporting the can container X, and a pawl piece 7 driven by a drive device (not shown) holds the can container X on the support plate 9. Slide and transport. The supporting plate 9 is cut off at a portion 10 parallel to the winding means 5, and the can container X is supported and conveyed by the second can container conveying means 2 in this region, as will be described later.

As shown in FIG. 3, the can lid carrying means 3 is provided with a rotatable and vertically movable can lid holding means 4 provided with a seaming chuck 11 for holding the can lid Y, and the can lid holding means 4 has an outer circumference. It is provided with a rotation drive means 12 which will be described later and rotates and drives the can lid Y.

The second can container transporting means 2 is, as shown in FIG. 3, a can container X.
A supporting table 13 is provided as a supporting portion for mounting and rotatably supporting the rotating table, and a rotating driving means 14 having the same structure as the rotating driving means 12 provided in the can lid holding means 4 on the outer periphery of the supporting table 13. Equipped with.

The can lid transfer means 3 is provided with a second transfer block 15 which will be described later, on the upper side facing the second can container transfer means 2.
It is provided integrally with the can container carrying means 2.

The transport block 15 is rotatably provided by connecting a number of the transport blocks 15 to each other on an endless chain 16 that rotates endlessly in a substantially elliptical shape with a space therebetween. The carrying block 15 is rotated in the same direction and at the same speed at a position parallel to the first can container carrying means 1. Then, as shown in the figure, on the side where the transfer block 15 is in parallel with the first can container transfer means 1, the transfer block 15 moves in parallel in an arc shape so that the transfer direction of the first can container transfer means 1 is a tangent line. Further, it is arranged so as to move away from the first can-container conveying means 1 in an arc shape, and the first portion is formed at the cutout portion 10 of the support plate 9 described above.
It runs in parallel with the can container carrying means 1.

In FIG. 1, 17 is a can lid supply turret for supplying the can lid Y to the can lid conveying means 3, and 18 is the can lid supply turret.
It is a device for supplying the can lid Y to the 17.

As shown in FIG. 3, the transport block 15 includes a support portion 19 formed in a U-shape in a side view, and the support portion 19 is detachably fixed to the endless chain 16.

Further, a can lid holding means 4 is provided above the supporting portion 19.
The can lid holding means 4 is rotatably provided at the lower end of a support shaft 20 hanging from above, and a cam roller 21 provided on the upper side of the support shaft 20 is guided by a cam rail 22 to be described later to move up and down. With this, the can lid holding means 4 is configured to move up and down. The can lid holding means 4 is provided with a seaming chuck 11.

A support table 13 for the can container X, which functions as the above-mentioned second can container carrying means 2, is provided below the support portion 19. The table 13 is a support shaft 20 of the can lid holding means 4.
And rotatably provided on a support shaft 23 on the coaxial line.

The transport block 15 is supported by a rail plate 26, which will be described later, by guide rollers 24, 25 provided vertically opposite to each other at a substantially central portion on the back side of the support portion 19, and a pair of guides provided on the back side up and down. The rollers 27, 28 are supported by rails 29, 30 having guide grooves.

Each of the transport blocks 15 has a support portion 19 as shown in FIG.
It is equipped with an endless chain 16 in which the lower back parts of the
The endless chain 16 is a sprocket shown in FIGS.
31 and 32 are driven by a driving device (not shown).

Each transport block 15 is guided along an endless rail plate 26 that is connected to each other and similarly endless rails 29, 30 as shown in the second illustration. The rail plate 26 causes each of the transport blocks 15 to approach each other in an arc shape so that the transport direction of the first can container transport means 1 is a tangent line as described above in the forward path, and further, is linear at the cut portion 10 of the support plate 9. In parallel with the first can-container conveying means 1 that moves in a circular pattern, and then guides the arc-shaped away from the first can-container conveying means 1,
Further, it guides in a straight line on the return path, and guides in an arc shape on the outward path.

As shown in FIGS. 2 and 3, the cam rail 22 is a position where the cam roller 21 of the transport block 15 moves, and is integrally provided parallel to the winding means 5. The cam rail 22 guides the cam roller 21 in the carrying direction of the carrying block 15, and a spindle provided with the cam roller 21.
The raising and lowering of the seaming chuck 11 is guided via 20.

As shown in FIG. 2, the winding means 5 is provided with the transport block 15 as shown in FIG.
Is a cutout portion 10 of the support plate 9 along the rail plate 26.
It is provided in a straight line corresponding to the position run side by side.
As shown in FIG. 2, the winding means 5 has a flange portion of the can container X on the forward side where the can container X is linearly conveyed by the second can container conveying means 2 and an end hook portion of the can lid Y. And a winding group 5a for winding.

As shown in FIG. 3, the seaming chuck 11 of the can lid holding means 4 and the support table 13 of the second can container carrying means 2 both hold the can container X and the can lid Y when they are held together. It is provided with rotation driving means 12 and 14 for rotating and rotating the flange portion and the end hook portion of the both in a state of being pressed against the winding means 5.

As shown in FIG. 3, the rotation driving means 12 is provided around the entire outer peripheral upper portion of the seaming chuck 11.
A first pinion gear 41 integrally provided with the first pinion gear 41, and a first rack 40 that is a linear fixed gear provided along the winding means 5 so as to be meshable with the first pinion gear 41. The integral seaming chuck 11 and the first pinion gear 41 are fixed to the lower end of the support shaft 20 via bearings 42, 43 and 44, and fixed by bolts 46.
It is locked to the support shaft 20 by 47. Therefore, the bolt
By removing 46 and removing the locking member 47,
Can be easily removed from. When changing the diameter of the can to be tightened, the seaming chuck 11 is replaced with one that matches the diameter of the can. The seaming chuck 11 has a first pinion gear whose rotation speed is matched. Since 41 is integrally provided, it can be easily replaced with one having a can diameter.

The rotation driving means 14 includes a second pinion gear 48 provided coaxially with the support shaft 23 of the support table 13, and a second pinion gear 48.
And a second rack 49 which is a linear fixed gear provided along the tightening means 5 so as to be capable of meshing therewith.

Therefore, as shown in FIGS. 2 and 3, when the transport blocks 15 move along the winding means 5, the first pinion gear 41 and the second pinion gear 48 are respectively attached to the first rack 40.
And the second rack 49 meshes and rotates, and the seaming chuck
11 and the support table 13 are driven to rotate. When the seaming chuck 11 and the support table 13 rotate, the can lid Y and the can container X sandwiched by them rotate.

The operation of the apparatus A of the present embodiment having the above configuration will be described below.

After the contents of the can container X are filled by the filling device B, the first container
As shown in the figure, the claw pieces 7 of the first can container carrying means 1 are sandwiched between the front and rear sides in the carrying direction, and linearly slid and carried on the support plate 9.

On the other hand, the can lid Y is supplied from the can lid feeding device 18, and the can lid feeding turret 17 allows the can lid feeding means 3 of each feeding block 15.
Is supplied to. At the delivery position of the supplied can lid Y,
The can lid Y is held by the can lid holding means 4.

Conveying block 15 in which the can lid Y is held by the can lid holding means 4.
Is subsequently rotated by the endless chain 16 which rotates in a substantially elliptical shape, and enters a circular orbit from a linear orbit. Eventually, the transport direction of the second can container transport means 2 enters a straight track, which is the outward path.

The carrying block 15 gradually approaches the first can container carrying means 1 and is moved to a position parallel to the first can container carrying means 1. At this time, the first
The can container X conveyed by the can container conveying means 1 is locked by the pair of claw pieces 7 from the front and rear in the conveying direction, and is supported by the support table 13 of the second can container conveying means 2 at the position of the cut portion 10 of the support plate 9. Moved to. Then, the can container X is placed on the support table 13 while being locked by the claw piece 7. Then, when it is reliably delivered to the second can container carrying means 2,
As shown in FIG. 3, the claw piece 9 abuts on the rail 8 and moves upward to release the lock of the can container X.

When the can container X is transferred to the second can container conveying means 2 in this way, the first pinion gear 41 meshes with the first rack 40 while rotating, and the first pinion gear 41 meshes smoothly with the first rack 40. . When the first pinion gear 41 meshes with the first rack 40, the first pinion gear 41 suddenly starts rotation start from a stationary state. However, since the first pinion gear 41 is formed integrally with the seaming chuck 11, the first pinion gear 41 is lightweight, and thereby the static moment of inertia at the time of rotation start is small. Therefore, when the first pinion gear 41 meshes with the first rack 40, it is possible to minimize the load on the tooth tops thereof. As a result, the impact at the start of meshing between the first rack 40 and the first pinion gear 41 is small, and the durability is improved without damaging the first pinion gear 41 and the first rack 40.

In such a process, the can lid holding means 4 of the can lid carrying means 3
Is lowered by the cam rail 22 via the cam roller 21. At this time, the first pinion gear 41 and the first rack 40 are lowered while meshing with each other. Then, the can lid Y held by the can lid holding means 4 is put on the can container X on the support table 13.

Further, when the transport block 15 transports and rotates the can lid Y and the can container X, the seaming chuck 11 of the can lid holding means 4 and the support table 13 of the second can container transport means 2 synchronize with the transport speed. The can lid Y and the can container X are rotated to rotate. Then, on the outward path of the second can container transporting means 2, the can lid Y and the can container X are transported linearly while being rotated, and at the same time, the end hook portion of the can lid Y is wound as shown in FIGS. 3 and 4. Fastening means 5
The can lid Y is wound around the can container X while being pressed against the can container Y.

After that, when the transport block 15 separates from the transport direction of the first can container transport means 1, the can container X with the can lid Y already wound up is transported by the second can container transport means 2 of the transport block 15. .

After that, the can container X whose winding of the can lid Y is completed is carried out from the carry-out path 51 by the carry-out turret 50.

(Effect of the Invention) As is clear from the above, according to the present invention, the seaming chuck and the gear are integrally provided, so that the weight of the seaming chuck can be reduced. As a result, the static moment of inertia generated when the seaming chuck is rotationally driven is small,
The durability can be improved without damaging the tooth tips of the gear and the fixed gear. Further, according to the present invention, in order to change the can diameter of the can container to be wound up, when replacing with a seaming chuck that matches the diameter of the can lid to be wound around the can container, it is necessary to replace the seaming chuck. Since the gears can be replaced at the same time, it is possible to provide a can lid winding device that can be easily adapted to changes in the can diameter.

[Brief description of drawings]

FIG. 1 is a schematic view showing an entire canning manufacturing apparatus including the present embodiment, FIG. 2 is an explanatory enlarged plan view of a part of the present embodiment, and FIG. 3 is a sectional view taken along line III-III of FIG. FIG. 4 and FIG. 4 are partially enlarged explanatory views. X ... can container, Y ... can lid, A ... winding device, 11 ... seaming chuck, 20 ... spindle, 40 ... first rack (fixed gear), 41 ... first pinion gear (Gear), 42,43,44
……bearing.

Claims (1)

[Scope of utility model registration request] 1. A winding device for winding a cylindrical can container capped with a can lid held by a rotatable seaming chuck while rotatably holding and transporting the can lid while winding the can lid around the can container.
A fixed gear is provided along the moving direction of the seaming chuck, a gear that meshes with the fixed gear and rotates the seaming chuck is coaxially provided integrally with the seaming chuck, and the seaming chuck is provided with an end of a spindle. A can lid tightening device, which is rotatably attached to a portion via a bearing.