JPH092579A - Cap fastening jig for capping machine - Google Patents

Abstract

PURPOSE: To automatically and efficiently seam-mount a cap onto a container opening by providing a plurality of seaming claws having a locking end face for pressing a cap protrusion in the seaming direction at the lower part of a disklike jig body mounted on a cap seaming mechanism. CONSTITUTION: A disklike jig body 13 of a capping machine 1 is mounted below each of spindles 6 to 8, and a seaming claw 12 having a locking end face 12a for pressing a cap protrusion 51c in the seaming directions 9 to 11 is provided protruding on the lower part of the jig body 13. In capping, when a container 5 for receiving a cap enters the capping machine 1, the capping jig body 13 starts lowering, covers a cap 51 at the lowest position, and rotates while the seaming claw 12 searches for the cap protrusion 51c. Then as soon as the locking end face 12a comes into contact with the cap protrusion 51c, the jig body 13 presses it while further rotating, thereby seaming-fixing the cap 51.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap-fastening jig for a capping machine, and more specifically, a capping for automatically tightening and mounting a cap body around an opening of a container filled with various products such as medicines and cosmetics. The present invention relates to a cap tightening jig that is fixedly attached to a machine.

[0002]

2. Description of the Related Art Conventionally, a cap body 100 which is generally automatically wound and attached by a capping machine is
As shown in (a1), (b1), and (c1) of FIG. 1, the outer peripheral wall of the cap body 100 does not have large irregularities, and the outer periphery of its cross section is circular as shown in (a2), (b2), and (c2) of FIG. It was the one.

Thus, the method for tightening the cap is to mechanically cap the cap body with a function of gripping a cap body called a chuck 101 as shown in FIG. It was to grab 100 and tighten it. By the way, inside the chuck 101, a doughnut-shaped soft rubber chuck rubber 102 having a V-shaped groove 102a on the outer periphery as shown in FIG. 5 is set at the position of the hatched portion in FIG. By supplying compressed air to the V-shaped groove 102a via the winding mechanism and the inside of the chuck 101, the chuck rubber 102 is compressed inward, and the cap body 100 is gripped as shown in FIG.

However, as shown in FIG. 7, for example, as in the hinge 100c of the cap body 100 in which the cap main body 100a and the cap upper lid 100b are connected by a hinge 100c made of the same material, a cap having a protrusion on the outer peripheral portion is present. In the case of the body, the conventional chuck rubber 1 as described above
In the 02 method, it was impossible to mechanically grasp and tighten the cap body due to its mechanism. Therefore, it is the actual situation that the cap body having the protrusion such as the hinge 100c is manually tightened and then sent to the next step, and the inefficiency is equally painful to those skilled in the art.

[0005]

In such an actual situation, the present inventor can automatically and efficiently use a capping machine to automatically and efficiently open a cap body having a protruding portion without the need for manpower. As a result of various studies for the purpose of developing a cap tightening jig capable of being mounted by winding tightening, the cap tightening jig for a capping machine of the present invention has been completed.

[0006]

That is, according to the present invention, a locking end surface for pressing a cap body protrusion in a winding direction is provided at a lower portion of a disc jig body mounted on a cap winding mechanism section of a capping machine. A cap tightening jig for a capping machine, characterized in that a plurality of winding tightening claw pieces are provided in a protruding manner.

It is preferable that the winding claw piece in the present invention has an inner curved surface corresponding to the outer peripheral surface of the cap body in order to smooth the tightening action of the cap body by the rotation of the claw piece.

[0008] Further, this winding claw piece has a substantially triangular shape in which the thickness is gradually reduced and the degree of projection is gradually reduced from the locking end surface toward the rear, and the cap body having the projection is smoothly covered. It is preferable for

The projection of such a claw for winding tightening is such that, in the lower part of the disc-shaped jig body, the circumference of a diameter corresponding to the outer diameter of the cap body not including the protrusion and the outer diameter of the cap body including the protrusion are provided. It is preferable to position it between the circumference of the corresponding diameter and the smoothing of the tightening action of the cap body having the protrusion by the rotation of the claw piece.

Regarding the concrete number of protruding portions of the winding claw pieces, two claw pieces having a claw width of about 1/4 of the circumference are installed opposite to each other at a point-symmetrical position. It is preferable to make the cap body having the projections have a smooth crowning and winding action.

The width of the engaging end surface of the winding claw piece is made substantially equal to the projecting length of the cap body protruding portion, and the engaging end surface is used as a flat surface, which damages the cap body protruding portion. It is particularly preferable in that it can be locked without any trouble and the pressing action in the winding tightening direction can be made smoother.

Further, it is preferable that the length of the maximum protruding portion of the winding claw piece is made substantially equal to the length of the cap body in order to make the cap body covered and the winding action smooth.

Any material may be used as the material for the winding claws, but a preferable material is a hard synthetic resin material which has high lubricity and is not easily deformed when the cap body is wound.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be further described below with reference to the drawings showing one embodiment.

In FIG. 8, reference numeral 1 is a main body of the capping machine which rotates in the direction of arrow 2. 3 is a star wheel for transporting the capped container 5, which is rotated in the direction of arrow 4 by the same drive as the capping machine body 1.

The capping machine body 1 has a proper number of spindles 6 as a cap winding mechanism at the bottom thereof.
7 and 8 are attached, and these rotate in the directions of arrows 9, 10 and 11, respectively.

Reference numeral 13 is a disc-shaped jig main body, which is attached to the lower portion of each of the spindles 6, 7, and 8 and further has a cap body projecting portion 51c which is pressed down in the winding direction 9, 10, 11 in the lower portion thereof. A winding claw piece 12 having an end surface 12a is provided in a protruding manner.

The inner peripheral surface of the winding claw piece 12 is shown in FIG.
As shown in FIG. 4, it has an inner curved surface corresponding to the outer peripheral surface of the cap body 51, and the width of the locking end surface 12a of the claw piece 12 is made substantially equal to the projecting length of the cap body projecting portion 51c. The locking end surface 12a is a flat surface.

Further, as shown in FIG. 9 and FIG. 13, the winding claw piece 12 has a substantially triangular shape in which the thickness gradually decreases and the degree of projection gradually decreases from the engaging end surface 12a toward the rear, and the maximum thereof. The length H (FIG. 10) of the protruding portion is substantially matched with the cap body length H (FIG. 15).

The claw piece 12 has a circumference R (FIG. 11) having a diameter corresponding to the outer diameter M (FIG. 16) of the cap body 51 not including the protrusion 51c and the outer diameter M of the cap body 51 including the protrusion 51c. Circumference R '(Fig. 11) of diameter corresponding to' (Fig. 16)
2 having two claw widths L (FIG. 11) occupying approximately 1/4 of the length of the claws are placed facing each other in a point-symmetrical position between the circumference R and the circumference R ′. Has been done.

[0021]

Since the present invention is constructed as described above, when it is mounted and fixed to the spindles 6, 7, 8 of the capping machine body 1, the capped container 5 becomes the capping machine body 1 as shown in FIG. Upon entering the spindle, the cap fastening jig main body 13 of the present invention
Starts to descend, covers the cap body 51 at the lowest position, and as shown in FIG.
Searches for the cap body projection 51c, and the locking end surface 12a abuts the cap body projection 51c, and at the same time, the cap body 51 is wound and fixed by pressing while rotating further in the winding direction. Next, after the completion of the winding and fixing, the cap fastening jig main body 13 is separated from the container 5 and lifted up together with the spindles 6, 7, and 8. Hereinafter, these operations are repeated.

[0022]

As described above, according to the present invention, even if a cap body having a protrusion is automatically and easily and securely wound around the container opening portion by hand without any manual operation, the cap body is mounted. Since it can be sent to the next process, extremely efficient work becomes possible.

[Brief description of drawings]

FIG. 1 (a1), (b1), and (c1) are front explanatory views of a cap body having no protrusion.

2 (a2) is a sectional view taken along the line aa 'in FIG.
2) is a sectional view taken along the line bb 'of FIG. 1, and (c2) is a sectional view taken along the line cc' of FIG.

FIG. 3 is a schematic perspective view illustrating a chuck.

FIG. 4 is a schematic cross-sectional explanatory view of a chuck.

5A is a schematic perspective view of a chuck rubber, FIG. 5B is a front explanatory view of the same, and FIG. 5C is a plan explanatory view of the same.

6A is a schematic perspective view showing a state when a cap body is gripped by a chuck, and FIG. 6B is a schematic cross-sectional explanatory view thereof.

FIG. 7 (a) is a front explanatory view of a cap body having protrusions with the top lid removed, (b) is a schematic perspective view of the cap body with the top lid fitted, and (c) is the cap. The front explanatory view in the state where the upper lid of a body was fitted.

FIG. 8 is a schematic perspective explanatory view of a capping machine.

FIG. 9 is a schematic perspective explanatory view of a cap fastening jig of the present invention.

FIG. 10 is a front explanatory view of the cap tightening jig of the present invention.

FIG. 11 is a bottom view of the cap tightening jig of the present invention.

FIG. 12 is an explanatory view of a cap winding process using a capping machine.

FIG. 13 is an explanatory front view showing the cap winding tightening action of the cap tightening jig of the present invention.

FIG. 14 is a bottom view showing the cap tightening action of the cap tightening jig of the present invention.

FIG. 15 is an explanatory front view of a cap body having a protrusion.

FIG. 16 is an explanatory plan view of a cap body having a protrusion.

[Explanation of symbols]

 1: Capping machine main body 3: Star wheel for conveying capped containers 5: Capped containers 6, 7, 8: Cap winding mechanism (spindle) 12: Claw pieces for winding 12a: Locking end surface 13: Disk Jig body 51: Cap body 51a: Cap body 51b: Cap upper lid 51c: Cap body protrusion 100: Cap body 100a: Cap body 100b: Cap upper lid 100c: Cap hinge 101: Chuck 102: Chuck rubber 102a: Chuck rubber V Groove

Claims (7)

[Claims] 1. A plurality of winding claw pieces each having a locking end face for pressing a cap body protrusion in a winding direction in a lower portion of a disk-shaped jig body mounted on a cap winding mechanism section of a capping machine. Cap tightening jig for capping machines characterized by being projected. 2. The cap fastening jig according to claim 1, wherein the winding claw piece has an inner curved surface corresponding to the outer peripheral surface of the cap body. 3. A claw piece for winding tightening is a substantially triangular claw piece whose thickness gradually decreases and its degree of projection gradually decreases from the engaging end surface toward the rear.
The cap tightening jig described. 4. A winding claw piece is provided so as to project between a circumference having a diameter corresponding to the outer diameter of the cap body not including the protrusion and a circumference having a diameter corresponding to the outer diameter of the cap body including the protrusion. The cap tightening jig according to claim 1, wherein the cap tightening jig is a cap tightening jig. 5. Two winding tightening claw pieces each having a claw width of about 1/4 of a circumference of a diameter corresponding to the outer diameter of the cap body are opposed to each other at a point symmetrical position. The cap tightening jig according to claim 1, wherein the cap tightening jig is a cap tightening jig. 6. The width of the locking end surface of the tightening claw piece is substantially the same as the protruding length of the cap body projection, and the locking end surface is a flat surface. The cap tightening jig according to any one of 1. 7. The length of the maximum protruding portion of the claw for tightening winding is substantially equal to the height of the cap.
6. The cap tightening jig according to any one of 6 above.