JPH0756259Y2 - Article gripping device with adjustable gripping height - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device capable of uniformly gripping various types of articles having different heights.

[0002]

2. Description of the Related Art Articles, such as containers for filling and packaging liquids, have various shapes depending on the properties and uses of the contents, and in particular, the height of the container is as shown in FIG. A wide variety of products are offered on the market, and machines that process and process articles of different heights,
For example, filling machines, lidding machines, washing machines, cutting machines for containers, etc.
Since it is large and expensive, it is general that the single machine described above is used for the various types of containers in the processing and processing of the various types of containers.

However, in the above-mentioned processing / processing machine,
Since it is not possible to grip articles of different heights as shown in FIG. 8 by using a kind of article gripping device, it is possible to change the gripping device in the machine or the attachment for each of the above-mentioned products. It had that versatility.

However, the replacement of the above-mentioned gripping device or attachment must be carried out after stopping all the machines and related equipment such as a product transfer line, which requires a large amount of work and requires a large amount of time for replacement. As a result, work efficiency decreases.

In recent years, a large number of small-quantity processing and processing have been increased, and therefore different gripping devices or attachments have to be prepared in advance, which makes management of these parts and storage space thereof difficult. However, as a result, the cost of the product was increased.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, in which an elevating / lowering body having a gripping member is inserted into a column which is erected at an article mounting position. , By linking a locking means capable of locking the lifting body at an arbitrary position of the pillar, and moving the gripping member to a desired gripping position even if the article has a different length to uniformly grip the outer periphery thereof. In addition, the height adjusting means arranged with the engaging means of the lifting body placed in the vicinity thereof,
An object of the present invention is to provide an article gripping device which can be mechanically operated by remote control and whose gripping height can be adjusted.

[0007]

Means of the present invention for attaining the above-mentioned object is to provide a column that is erected on the frame in the vicinity of the mounting position of the article on the frame, and that can move up and down to the column. The vertically movable body inserted and fitted, a locking means for the vertically movable body linked to the vertically movable body, the base of the vertically movable body being pivotally supported on the vertically movable body so as to be horizontally rotatable, and a gripping body is attached to an outer end portion thereof. An article gripping member that is provided, a gripping operation unit that is linked to the article gripping member and opens and closes the article gripping member in accordance with the gripping timing of the article, and the locking unit that is provided opposite to the article gripping member. And a fixing piece connected to the elevating body, and one end of the supporting piece is connected to the lifting piece. The other end is pivotally supported, and the free end side is on one side of the strut. A movable piece which is pivotable to set a locking edge for engaging the outer periphery of the strut when rotated is provided in the middle of the movable Dohen, provided between the fixed piece and the movable piece,
A configuration of an article gripping device capable of adjusting a gripping height, which includes a pressing member that constantly holds the movable piece in an expanded state;
The above-mentioned height adjusting means includes a support body that is attached to the machine base so as to be able to move up and down by an elevating member, an operating body that is attached to this support body that is movable back and forth by an advancing and retracting member, and is attached to this operating body by an opening and closing member. The article gripping device is provided with a gripping body that engages with the locking means and unlocks the lifting body from locking the pillar.

[0008]

The article gripping device of the present invention having the above-described structure and having the adjustable gripping height has the following effects. The gripping height adjustable article gripping device of the present invention is installed in a processing / processing machine, and the height of the gripping member is adjusted in advance according to the shape of the article, that is, its height. When the gripping body is extended to the fixed piece and the movable piece of the gripping member by operating the height adjusting means and the both pieces are sandwiched, the locking of the lifting body to the column of the lifting body by the locking means is released. When the grip body is released after being moved up and down along the support pillar, the movable piece is expanded by the pressing member and its locking edge engages with the outer periphery of the support pillar to prevent the lift body from falling.

In this state, when the gripping member is operated by the gripping operation means, the articles supplied at the mounting position in this apparatus are abutted against each other by the grippers from both sides and are gripped by a predetermined pressure. It

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an article gripping device having a gripping height adjustable according to the present invention will be described below with reference to the drawings. The article gripping device A of the present invention whose gripping height can be adjusted is
For example, as shown in FIG. 8, a so-called processing machine such as a filling machine for filling a container 1 with a liquid or a fluid, a machine for capping and tightening the container 1, a washing machine for the container, a cutting machine for the container, etc. It is adopted by B.

In FIG. 1, A is an apparatus according to an embodiment of the present invention, which is used in the above-mentioned processing machine B, for example, a filling machine, and has a column 3 standing upright on a frame 2,
An elevating body 4 that is vertically inserted into the column 3, a locking means 5 of the elevating body 4 linked to the elevating body 4, an article gripping member 6 attached to the elevating body 4, and the engaging member. The height adjusting means 7 for operating the stopping means 5 is basically configured.

The column 3 is formed in the frame 2 of the filling machine B in the vicinity of the placement position 2a of the article 1 and has a length equal to or greater than the article height.

As shown in FIGS. 2 and 3, the elevating / lowering body 4 is attached to the pillar 3 by inserting the insertion hole 8 into the pillar 3 by means of a rotation preventing member 9 so as to be vertically movable. The support portion 10 to which the article gripping member 6 is attached is formed.

In the filling machine B, the above-mentioned article holding member 6 temporarily holds the outer periphery of the article 1 at the time of filling the article and fixes the article 1 at the mounting position 2a so as not to move. As shown in FIGS. 3 and 5, a pair of rotating arms 11 and 11 are rotatably supported on the supporting portions 10 of the elevating / lowering body 4 at their bases so as to rotate within a predetermined range. The gripping body 13 is arranged at the outer end of the rotating arms 11 and 11 so as to exert a centripetal force on the article 1.

In the article gripping member 6 shown in FIG. 3, a gripping body 13 composed of two sets of inner and outer pressing rollers 13a and 13b is provided at the outer ends of the rotating arms 11 and 11, respectively. Therefore, the pressing rollers 13a and 13b are pushed by the transfer and supply member (not shown) into the gripping position of the article 1 to move the article 1 by the gripping operation means 14 to be described later.
The outer one so that it can be easily and smoothly gripped
13b is mounted in a slightly open position.

Further, a gripping operation means 14 by a tension spring 15 which is biased so that the rotating arms 11 and 11 always move inward is linked to an intermediate portion of the rotating arms 11 and 11. , A loading position from the transfer / supply member (not shown) of the filling machine B
The article 1 indicated by the alternate long and short dash line in FIG. 3 supplied at 2a is pushed inward to the position of the article 1 indicated by the alternate long and two short dashes line in the figure while contacting the outer pressing rollers 13b, 13b. , 11 are pushed out against the tension spring 15 so that the outer peripheral surface of the article 1 is pressed by the pressing rollers 13a, 13b.
It is held by a predetermined pressure by the force of the tension spring 15, and stoppers 16 and 16 for regulating the closing limit of the rotating arms 11 and 11 are provided inside the rotating arms 11 and 11. Further, the support shafts 12, 12 are provided with interlocking gears g, which mesh with each other, and the rotating arms 11, 11 are opened and closed by their relative interlocking. To be configured.

This type is adopted when the filling machine B is a processing / processing in which an external force is not so much applied to the article 1 and a grip is performed with a light presser.

The gripping body 13 shown in FIG. 5 has a gripping force that can sufficiently oppose the winding force of the cap on the lid by using the rotation of the lidding machine B while the article 1 is being swung. It is adopted when necessary, and arc-shaped gripping surfaces 13c and 13c having substantially the same shape as the article 1 are provided at the outer ends of the rotating arms 11 and 11, and the gripping surfaces 13c and 13c are made of rubber. The non-slip members 13d and 13d are attached, and this configuration is
Lever attached to one of the upper ends of the support shafts 12,12
A roller 17a is pivotally supported on the outer end of 17, and the roller 17a is elastically abutted on the peripheral end of a disk cam 18 attached to a fixed shaft (not shown) of the cover applying machine B. The linking gears g mounted on the support shafts 12 and 12 mesh with each other to open and close in a relatively interlocking manner.

The gripping body 13 according to this example is effective for articles 1 having different heights in which the outer shapes of the gripping surfaces 13c, 13c are the same.

As shown in FIGS. 2 and 6, the locking means 5 is a means for easily fixing the lifting body 4 inserted into the support column 3, that is, the article gripping member 6 at a desired height. In the lower part of the lifting body 4, an L-shaped fixing piece 19
The vertical piece 20 is connected to the elevating body 4 so as to be able to move up and down integrally, and at the upper part of the fixed piece 19, the movable piece 21 is pivotally attached to the vertical piece 20 at one end thereof. The free end side is extended to the other side across the column 3 and the end portion is used as a holding edge 22.

A locking edge 23 that engages with the outer periphery of the support column 3 when the movable piece 21 rotates is formed on the side corresponding to the support column 3, that is, in the middle thereof. A pressing member 24 such as a coil spring provided between the movable piece 21 and the movable piece 21 keeps the movable piece in an expanded state at all times, and
23 is engaged with the outer circumference of the support column 3 to prevent the lifting / lowering body 4 from dropping. As shown in FIG. 4, if the upper and lower pieces 19 and 21 of the locking means 5 are movable, the lifting body 4 can prevent the vertical movement of the column 3 on the column 3. .

The height adjusting means 7 mechanically and remotely operates the locking means 5 of the article gripping member 6 to release the locking, and processes the height of the gripping member 6. The object 1 is correctly associated with the gripping position of the article 1, and is provided in the vicinity of the article gripping member 6 so as to face it.
A support body 29 is attached to the machine base 25 so as to be able to move up and down by a stepping motor that is easy to perform numerical control and has high operation accuracy, and an elevating member 28 that is composed of a screw shaft 27 that is rotationally driven in the forward and reverse directions by a servo motor 26 An operating member 31 is attached to the support member 29 by an advancing / retreating member 30 that adopts a fluid cylinder or the like so that the operating member 31 can move back and forth, and a pair of upper and lower arms 32, 32 are attached to the operating member 31.
A gripping body 36 is formed by an opening / closing member 35 configured by a fluid cylinder 34 that moves forward and backward by supporting the bases of the arms 32, 32 with a shaft 33.
The locking means 5 is unlocked by holding the movable piece and the fixed piece by the gripping body 36, and by individually controlling the elevating member 28, advancing / retreating member 30, and opening / closing member 35, The gripping member 6 can be positioned at a desired position on the column 3, and these members 28, 30, 35 are numerically controlled by a computer.

[0023]

As described above, the article gripping device of the present invention having the above-mentioned adjustable gripping height is constructed by connecting the lifting means to which the gripping member is attached with the means for locking the support. Since the gripping member can be moved and adjusted at an accurate position according to the height of the, the gripping of articles of different lengths is performed by a single device.

Therefore, it is no longer necessary to replace the gripping device and attachment suitable for the article each time the height of the article to be processed / processed is changed, unlike the prior art, and the work time and labor required therefor are unnecessary. As a result, significant labor saving has been achieved, and it is extremely effective for processing and processing small-volume, multi-product cylindrical articles.

Further, since the replacement of the gripping device and the attachment is eliminated, the preparation space, the storage space required for the management, and the worker therefor are not required, so that the purpose of cost reduction can be achieved.

For adjusting the gripping height, the height adjusting means which is mechanically and remotely operated is made to correspond to the article gripping member, so that further labor saving can be achieved. It has special effects such as.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an article gripping device according to the present invention in which a gripping height can be adjusted.

FIG. 2 is a side view of a grip member and a locking unit in FIG.

FIG. 3 is a plan view of FIG.

FIG. 4 is an explanatory view showing another example of the locking means in FIG.

FIG. 5 is a plan view showing another example of the grip operation means in FIG.

FIG. 6 is a partial vertical cross-sectional view showing an enlarged state of engagement by engagement means.

7 is a side view of the height adjusting means in FIG. 1. FIG.

FIG. 8 is an explanatory diagram showing an outline of an article used in the apparatus according to the embodiment of the present invention.

[Explanation of symbols]

 1 article 2 frame 2a mounting position 3 support 4 lifting body 5 locking means 6 article gripping member 7 adjusting means 14 gripping operation means 19 fixed piece 21 movable piece 23 locking edge 24 pressurizing member 25 machine stand 28 lifting member 29 support Body 31 Operating body 35 Opening / closing member 36 Grasping body

Claims (3)

[Scope of utility model registration request] 1. A support column standing upright on the frame in the vicinity of the article mounting position on the frame, an elevating body which is vertically inserted into the column, and an elevating body linked to the elevating body. Locking means, the base of the lifting body is pivotally supported to be horizontally rotatable, and an article holding member having a holding body at an outer end thereof, and an article holding timing linked to the article holding member. The gripping operation means for opening and closing the article gripping member, and the height adjusting means for operating the locking means in opposition to the article gripping member are adjusted. An article gripping device that can be used. 2. The locking means includes a fixing piece connected to the elevating body, one end of the fixing piece being pivotally supported on the other side of the column, and a free end side extending to one side of the column. A movable piece that is rotatable, a locking edge that is provided in the middle of the movable piece and that engages with the outer periphery of the column when rotated, and that is provided between the fixed piece and the movable piece. The article gripping device according to claim 1, further comprising: a pressing member that constantly holds the piece in an expanded state. 3. The height adjusting means includes a support member that is attached to the machine base so as to be able to move up and down by an elevating member, an operating body that is attached to the support body by an advancing and retracting member, and an opening / closing member for the operating body. 2. The article gripping device according to claim 1, further comprising: a gripping body that is attached by means of the above-mentioned and that is engaged with the locking means to unlock the lifting body from the locking.