JPH0940081A - Cap mounting device - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: When mounting a cap on a container, the relative positions of the screw cuts of the cap and the container due to a slight deviation between the cap and the container and a mismatch of screw thread start positions of the cap and the container. To provide a cap mounting device capable of stably mounting a cap on a container regardless of changes. A header (4) into which a cap (3) is screwed into an opening (20) of a container (2) and a clamper (5) that regulates rotation of the container (2) around a vertical axis and holds the container (2) so that the container (2) can move up and down. .

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap mounting device, and more particularly to a cap mounting device for mounting a cap on a container by screwing the cap onto the mouth of the container.

[0002]

2. Description of the Related Art A rotary cap mounting device described in Japanese Patent Laid-Open No. 60-110689 is disclosed as a prior art relating to a cap mounting device for mounting a cap on a bottle container by screwing the cap onto the container. It has been known. The cap mounting device described in the above publication comprises a container gripping mechanism for gripping a container, a capper head having a cap gripping mechanism, and a control device for controlling the rotational driving torque of the cap by the cap gripping mechanism.
A container without a cap is guided onto a circular turntable, and the container holding mechanism holds the container non-rotatably on the turntable, and a cam mechanism equipped with a cam rail holds the capper head at a fixed position. Lower at a timing and fit the cap into the mouth of the container,
A rotary type configured to tighten the cap with a torque equal to or less than a predetermined reference torque by the control device, and to tighten the cap with the reference torque after the cap is substantially screwed to the mouth of the container and the rotation is stopped. It is a cap mounting device.

[0003]

In the cap mounting device, when the cap is screwed into the mouth of the container, the center axis of the cap held by the cap holding mechanism and the container are slightly displaced from each other. If there is, there was a problem that failed to put on the cap. Further, in the cap mounting apparatus, the capper head holding the cap tries to move up and down at the same timing every time by the cam mechanism to screw the cap, but the screw thread cutting start positions of the cap and the container are always matched. Therefore, the relative positions of the screw cuts of the cap and the container are different every time, and the screwing start height of the cap and the container is changed every time. Therefore, the load applied to the container at the start of screwing of the cap by the capper head also changes every time, and there is a problem that the cap installation fails when an excessive load is applied.

Therefore, an object of the present invention is to provide a slight displacement between the cap and the container when mounting the cap on the container,
(EN) Provided is a cap mounting device capable of stably mounting a cap on a container regardless of a change in the relative position of the thread cutting of the cap and the container due to the mismatch of the screw thread starting positions of the cap and the container. .

[0005]

According to a first aspect of the present invention, there is provided a header in which a cap is screwed into a mouth of a container, and rotation of the container around a vertical axis is restricted and the container is moved up and down. By providing a cap mounting device characterized by including a clamper capable of gripping,
The above object is achieved.

The invention according to claim 2 of the present invention is
The cap mounting device according to claim 1, further comprising: a support body that supports the container gripped by the clamper from below via a cushioning material.

The invention according to claim 3 of the present invention is
The cap mounting device according to claim 2, wherein the support is provided in a transfer holder that transfers a container.

The cap mounting apparatus of the present invention is provided with a clamper that regulates the rotation of the container about the vertical axis and holds the container so that the container can move up and down. When the header is lowered, the cap and the container are attached. Even when the screw thread cutting start positions do not coincide with each other, the screwing start height of the cap and the bottle can be kept constant by vertically moving the container. Therefore, the cap can be reliably attached by applying only the load required to the container when the head starts screwing the cap.

[0009]

DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

1 and 2 show an embodiment of a cap mounting device according to the present invention. In the figure,
Reference numeral 1 is a cap mounting device, 2 is a container, and 3 is a cap.

The cap mounting device 1 stores a bottle-shaped container 2 in a transfer holder 7 which will be described later, and sequentially guides the container 2 together with the transfer holder 7 onto a turntable (not shown) to store the container 2 in the container 2. This is a rotary cap attachment device for attaching the cap 3 to the mouth portion 20. The cap mounting device 1 basically has the same configuration as a conventional rotary cap mounting device, and only the characteristic part will be described below.

The cap mounting device 1 is provided with a header 4 into which the cap 3 is screwed into the mouth portion 20 of the container 2 and below the header 4, and regulates the rotation of the container 2 about the vertical axis. The container 2 is provided with a pair of clampers 5 and 5 for holding the container 2 so as to be vertically movable.

The header 4 is provided to be vertically movable at a predetermined position on the turntable by a known cam mechanism (not shown) using a ring-shaped cam rail (not shown). A well-known cap gripping mechanism (not shown) is provided inside the header 4, and the cap 3 is screwed into the mouth 20 of the container 2 while rotating the cap 3 around a vertical axis. It is provided so that it can be combined.

As shown in FIG. 2, the clamper 5 is
Is a pair of drive shafts 50 inserted into the turntable.
Each of them is rotatably inserted into and fixed to each other, has a semi-circular clamp portion 5a at one end thereof, and has an insertion hole 5b for inserting the drive shaft 50 at the other end thereof. .
The clamper 5 is horizontally rotated by rotating the drive shaft 50 around the vertical axis at a timing linked to the vertical movement of the header 4, so that the body portion 21 of the container 2 is grasped from the side. It is provided.

As shown in FIGS. 2A and 2B and FIGS. 3A and 3B, a slider mechanism 6 is arranged on the inner surface of the clamp portion 5a of the clamper 5. The slider mechanism 6 includes guides 60 and 60 fixed to the inner surface of the clamp portion 5a of the clamper 5 at a predetermined interval, and artificial leather supported by the guides 60 and 60 so as to be vertically movable (for example, a registered trademark " Clarino "or the like) is attached to the inner surface of the grip body 61 (the inner surface of the grip body 61 is replaced with an elastic body having a large frictional resistance such as rubber instead of artificial leather). You may.). Then, the grip body 61 comes into contact with the body portion 21 of the container 2 from the side and grips the container 2, restricts the rotation of the container 2 around the vertical axis, and the container 2 moves up and down together with the grip body 61. It is provided so that it can move.

The transport holder 7 is provided with a storage recess 70 for the container 2, and a support plate 72 horizontally supported by a plurality of springs 71 (buffer materials) in the storage recess 70.
(Support) is arranged. Then, the container 2 held by the clamper 5 is attached to the spring 71.
It is provided so as to be supported from below by a support plate 72 via.

In the cap mounting device 1, when the header 4 is lowered (see FIG. 4 (a)), when the screw cutting start positions of the cap 3 and the mouth 20 of the container 2 do not match. The container 2 is pushed downward by a stroke in the vertical direction corresponding to the phase shift of the thread cut, but the spring 71 arranged in the transport holder 7 contracts and moves downward to the support 72. At the same time, the container 2 moves downward together with the grip body 61 of the slider mechanism 6 (see FIG. 4B).
The load on the container 2 at the start of screwing the cap 3 due to is reduced, and unnecessary load is not applied between the container 2 and the cap 3.

While the cap 3 is screwed into the mouth of the container 2 by the header 4, the container 2 is urged toward the header 4 by the elastic restoring force of the spring 71. The screwing of 3 and the mouth 20 of the container 2 is also smoothly performed. Then, when the mounting of the cap 3 is completed, the container 2 ascends together with the grip body 61 and returns to the height at the start of screwing (see FIG. 4C).

As described above, according to the cap mounting device 1 according to the present embodiment, the cap 3 is accompanied by a slight displacement between the cap 3 and the container 2 and a mismatch in the thread cutting start positions of the cap 3 and the container 2. Also, the cap 3 can be stably attached to the container 2 regardless of the change in the relative position of the threaded portion of the container 2.

5 and 6 show another embodiment of the cap mounting device according to the present invention. In FIG. 5, reference numeral 1'denotes a cap mounting device. In addition,
The cap mounting device 1'of the present embodiment shown in FIGS. 5 and 6
In the above, the same parts as those of the cap mounting device 1 of the above embodiment are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 5, the cap mounting device 1'of the present embodiment is a rotary cap that guides the container 2 onto the turntable 8 and mounts the cap 3 on the opening 20 of the container 2. It is a mounting device. Further, the cap mounting device 1 ′ basically has the same configuration as the conventional rotary cap mounting device, like the cap mounting device 1, and in the following description, its characteristic parts will be described. Only explained.

The cap mounting device 1'is provided with the container 2
It is provided with a header 4 into which the cap 3 is screwed into the mouth portion 20 of the above, and a pair of clampers 5 ', 5'which regulate the rotation of the container 2 about the vertical axis and hold the container 2 so that it can move up and down.

As shown in FIGS. 6 (a) and 6 (b), the clamper 5'is rotatably inserted into the drive shaft 50 'inserted in the turntable 8 via a spring 50a'. It is fixed, has a semi-circular clamp part 5a 'at one end, and has an insertion hole 5b' for inserting the drive shaft 50 'at the other end. The clamper 5 ′ is provided so as to be horizontally rotated by rotating the drive shaft 50 around a vertical axis by a drive source (not shown) and directly grip the body portion 21 of the container 2 from the side. Then, the container 2 is laterally abutted against the body portion 21 of the container 2 to grip the container 2, and the rotation of the container 2 around the vertical axis is restricted so that the container 2 can move up and down together with the clamper 5 ′. It is provided.

In the cap mounting device 1 ', when the header 4 is lowered (see FIG. 4 (a)), the screw 3 start positions of the cap 3 and the mouth 20 of the container 2 do not match. The container 2 is pushed downward by a stroke in the vertical direction corresponding to the phase shift of the thread cut, but the spring 50a 'contracts and the clamper moves downward together with the container 2, so that the head The load on the container 2 at the start of screwing the cap 3 by 4 is reduced, and unnecessary load is not applied between the container 2 and the cap 3.

While the cap 4 is being screwed into the mouth of the container 2 by the header 4, the container 2 is urged toward the header 4 by the elastic restoring force of the pulling 50a '. The cap 3 and the mouth portion 20 of the container 2 can be screwed together smoothly.

According to the cap mounting device 1'of this embodiment, the same effects as those of the cap mounting device 1 of the above embodiment can be obtained.

The cap mounting device according to the present invention is not limited to the cap mounting device of the above embodiment,
The dimensions, shape, and the like can be appropriately changed without departing from the object of the present invention.

For example, in the cap mounting apparatus 1 of the above-described embodiment, the spring 71 and the support body 72 are arranged in the accommodating concave portion 70 of the transport holder 7, but in the other embodiment shown in FIG. As in the cap mounting device 1 ″, the turntable 8 ″ is provided with a plurality of recesses 80, and the spring (buffer material) 81 and the support body 82 are disposed in the recesses, and the upper surface of the support body 82 is provided on the turntable. By arranging the same as 8 ″, the same effect as that of the cap mounting device 1 can be obtained.

As the cushioning material in the cap mounting apparatus according to the present invention, it is preferable to use a spring as in each of the above-mentioned embodiments. For example, a bag-shaped body having a hollow inside, an air damper, etc. are used as the cushioning material. You can also As an embodiment using the bag-shaped body, for example, as in the cap mounting device shown in FIG.
It is possible to cite an embodiment in which an annular bag-shaped body 81 ′ is arranged instead of the spring 81 in the cap attaching device 1 ″ of the above-described embodiment.

Further, the cap mounting apparatus according to the present invention is
It is needless to say that the present invention is not limited to the rotary cap mounting device in each of the above-described embodiments, and includes a linear cap mounting device that expands the operation of the rotary cap mounting device.

The cap mounting device according to the present invention is not particularly limited as long as it is a container in which the cap is screwed into the mouth of the container, but a cap for a container filled with a liquid substance such as shampoo, rinse, liquid detergent, etc. It is particularly suitable for mounting.

[0032]

According to the cap mounting device of the present invention, when the cap is mounted on the container, the cap and the container are slightly displaced from each other, and the cap and the container are not aligned with each other in the thread cutting start position. The cap can be stably attached to the container regardless of the change in the relative position of the thread cut.

[Brief description of drawings]

FIG. 1 is a schematic front view of a partial cross-section showing an embodiment of a cap mounting device according to the present invention.

2A and 2B are schematic diagrams showing a configuration of a clamper in the cap mounting device of the same embodiment, FIG. 2A is a schematic plan view of the clamper, and FIG. 2B is a schematic perspective view of the clamper.

3A and 3B show a configuration of a main part of the clamper, FIG. 3A is an enlarged perspective view of a main part of the clamper, and FIG. 3B is a schematic perspective view of a main part of the clamper.

FIG. 4 is a schematic front view showing a step of attaching a cap to a container by the cap attaching apparatus of the embodiment, in which a part is shown in section, and (a) is a schematic view showing a state when screwing of the cap is started. , (B) is a schematic view showing a state during screwing of the cap, and (c) is a schematic view showing a state where screwing of the cap is completed.

FIG. 5 is a schematic front view showing a part of another embodiment of the cap mounting device according to the present invention in a sectional view.

6A and 6B are views showing a configuration of a clamper in a cap mounting device of the other embodiment, FIG. 6A is a plan view of a main part of the clamper, and FIG. 6B is a perspective view of a main part of the clamper. .

FIG. 7 is a schematic front view showing a part of another embodiment of the cap mounting device according to the present invention in a sectional view.

FIG. 8 is a schematic front view showing a part of another embodiment of the cap mounting device according to the present invention in a sectional view.

[Explanation of symbols]

 1 Cap Mounting Device 2 Container 3 Cap 4 Header 5 Clamper 7 Transport Holder 71 Spring (Cushioning Material) 72 Support

Claims (3)

[Claims] 1. A cap comprising: a header into which a cap is screwed onto the mouth of the container; and a clamper that regulates rotation of the container about a vertical axis and holds the container so that the container can move up and down. Mounting device. 2. The cap mounting device according to claim 1, further comprising a support body that supports the container gripped by the clamper from below via a cushioning material. 3. The cap mounting device according to claim 2, wherein the support is provided in a transfer holder that transfers a container.