JP3174816B2 - Plural head type cover apparatus and method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a plurality of caps capable of easily and reliably managing a cap with an appropriate torque and controlling the progress of the tightening when the cap is wound around the mouth of a container. The present invention relates to a head-type cover device and a method thereof.

[0002]

2. Description of the Related Art Conventionally, in a cover using a rotary machine for winding a cap around a container, a chuck head rotated by a large number (for example, 12 to 18) of main spindles is mounted on a disk-shaped rotating body. Each of the sections is attached to each other, and the rotating means is connected to each of the main shafts. Control is performed so that the start and end of the tightening are performed in a predetermined section where the rotating body rotates.

[0003] Further, when tightening the cap, it is necessary to manage whether or not a predetermined tightening has been performed for each capping head. For this purpose, for example, a monitor is provided for each capping head. I was

Alternatively, when a servomotor is used as the rotating means, the output torque of the servomotor is taken out as data and managed.

However, when the former monitoring device is used, a monitoring device and a torque detector are required for each capping head, and these devices must be connected by a cable. Not only is the rotation transmission mechanism complicated, but also the cost is greatly increased. Furthermore, analog data transfer over long distances has low responsiveness to noise and cannot acquire highly accurate data, so that the tightening management becomes insufficient.

When the latter servomotor is used, the output torque data is not the torque applied to the cap and the container, but the output current of the servomotor is monitored. Since the mechanical loss from the motor to the capping head is also included, high-precision data cannot be obtained as described above, and the tightening management becomes insufficient. And other various problems.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems.
When tightening the cap, the restricting means for applying a predetermined tightening torque are connected to each other, and the tightening detection values of the respective tightening means are transmitted from the restricting means via the wireless transmission means, respectively, and provided outside the moving body. By receiving the tightening detection value by the receiving means and performing the tightening management in the lid based on the detected tightening value, when tightening the cap to the mouth of the container, the proper torque of the cap is used. It is an object of the present invention to provide a multi-head type lidding device and a method thereof, which can easily and reliably manage the state of progress of tightening.

[0008]

In order to achieve the above-mentioned object, the present invention provides a rotary moving body provided with a plurality of tightening means, and each of the tightening means provides a container during rotation of the moving body. In a multi-head type lidding device for capping, each is connected to each of the winding means , and
When tightening the cap,
Restriction means for applying tightening torque and these restriction means
And the connection of the cap and the tightening inspection of the cap in each of the tightening means.
Wireless transmission means for transmitting each output value;
The wireless transmission provided outside, which does not receive rotational movement
Let and a receiving means for receiving a wireless signal of signal means, said
For each wireless transmission means provided in each of the plurality of winding means
The transmitted radio signal is
The present invention is directed to a configuration of a multi-head type covering device set so as to transmit a different frequency for each communication means .

Then, in the middle of the container transport line,
The container to a rotary moving body provided with a plurality of winding means.
The moving body is rotated by the respective winding means.
During operation, the container is capped, and
In the multi-head type covering device for returning the container to the transport line, the respective tightening means, when winding the cap on the container, connecting a regulating means for applying a predetermined tightening torque, respectively, From each of these regulating means via the wireless transmission means ,
Different frequency for each wireless transmission means
Transmitted the radio signal, the rotational movement motion in the moving body
The externally provided receiving means, which does not receive the signal, receives the detected tightening value and controls the control means based on the detected tightening value .
The sealed container that has been tightened within the appropriate torque value
Conveyed to the transfer line and out of the range of the appropriate torque value.
The sealed container is discharged out of the transport line.
In addition, there is provided a multi-head type covering method for performing winding control on the covering.

[0010] The receiving means receives the detected tightening value at the position where the tightening by the winding means is completed during the movement of the moving body.

Furthermore, the receiving means is moved between seaming starting position by seaming means seaming completion position in the moving of the moving body
Continuously from the wireless transmission means corresponding to the rotation trajectory of the moving object
Continuously receive the transmitted tightening detection value .

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a multi-head type covering apparatus according to the present invention.
In FIGS. 1 to 3 and 5, A is a multi-head type covering device used in the fluid filling and packaging industry, in which each moving means 1 is provided with a plurality of winding means 2 serving as a plurality of heads. During the movement of the moving body 1, the cap c is applied to the mouth of the container b by screwing both male screws and female screws.

The moving body 1 is used for a rotary cover device as shown in FIGS. 1, 2 and 5, and a linear cover device as shown in FIG. Among these, the moving body 1 in the rotary-type covering device A is
The disk-like member is attached to a drive shaft 4 which is rotated at a predetermined speed, and as shown in FIG.

The container b is continuously supplied from the transfer line L to a table 6 attached to the drive shaft 4 via a rewinding means 5 such as a star wheel. It is taken out by the feeding means 7 such as a wheel and sent out to the transport line L.

The moving body 1 in the linear covering device A is a member that moves along an elevating guide 8 as shown in FIG. , And the containers b are supplied on a transport line L that moves in synchronization with the moving body 1.

The above-mentioned winding means 2 is provided with a conventional gripping member 10 of a mechanical type, a vacuum type, an air tube type or the like by a link, a wedge or the like on a rotating shaft 9 rotatably attached to the moving body 1. Thus, the cap c is appropriately gripped and released. A rotating means 11 such as a servomotor is linked to the rotating shaft 9, and rotation for cap tightening is given by a regulating means 12 described later so that a predetermined tightening torque is obtained.

In the case of the rotary cover device A, as shown in FIG. 1, the rotating shaft 9 can be moved up and down by a predetermined stroke by the elevating means 13 without obstructing its rotation. Further, as shown in FIGS. 2 and 5, the container b supplied from the feeding means 5 is supplied to the container A in a range R from the winding start position S to the winding end position E.
In step (c), the cap c is wound.

The restricting means 12 provides a predetermined tightening torque when tightening the cap c, and is provided for each of the tightening means 2. When the torque value set in advance is completed, A clutch or the like for releasing the rotation transmission is used, and this torque value can be arbitrarily adjusted by an adjusting member 14 such as an elastic machine or an air pressure.

The restricting means 12 includes a wireless transmitting means 17 comprising a winding detecting member 15 and a transmitting member 16.
Are connected, and among them, the winding detection member 15
Measures the change in strain resistance transmitted to the clutch by the regulating means 12 and outputs the data as a detected tightening value via the microprocessor system.

Further, the transmitting member 16 is
For example, the voltage reference signal and the current reference signal amplified in
Is transmitted as a signal of a unique radio frequency for each.

The receiving means 18 is configured as an antenna to receive a signal from the radio transmitting means 17 and is provided outside the moving body 1, that is, at a place where the moving body 1 does not receive the moving motion. Installed separately. In the case of the rotary cover device A, as shown in FIG. 2, the rotary cover device A is installed at a tightening end position E, or as shown in FIG. Installed in tightening section R. Similarly, in the case of the linear covering device A, as shown in FIG.
As shown by the imaginary line in FIG.

The signal received by the receiving means 18 is sent to the control means 19 and is displayed on a monitor or the like via a predetermined memory or an arithmetic circuit, and the operator is required to tighten the cap c applied to each container b. The state is grasped.

The radio transmitting means 17 and the receiving means described above can be of any type as long as they can transmit and receive information by radio, such as infrared rays and laser beams, in addition to radio waves.

Therefore, the multi-head type covering device A and the covering method of the embodiment of the present invention configured as described above are as follows.
The following effects are exhibited, and a case where the present invention is applied to a rotary lidding apparatus A will be described. The control means 19 includes
The reference value of the tightening torque of the cap c is input in advance. For example, as shown in FIG. 6, if the cap c is tightened with a torque that falls within the range of the appropriate torque value T, the container b It is determined that the applied cap c is properly tightened, and if data outside the range of the appropriate torque value T is received, it is determined that the improper tightening process is performed, and the transfer line L
Is more exhausted.

That is, the containers b are successively supplied from the transport line L via the feeding means 5 onto the table 6 of the multi-head type covering device A, and are stably held by a container gripper (not shown). On the other hand, the cap supply means 20
, The cap c is sent, and is held and held by the holding member 10 in the cover means 2.

With the rotation of the moving body 1, the winding start position S
The container b which has reached the opening is provided with rotating means 11 toward its mouth.
While being rotated by the operation of (1), the gripping member 10 is lowered by the operation of the lifting / lowering means 13, and the female screw of the cap c starts to screw into the external thread of the container b.

Then, in the regulating means 12, the winding detection member 15 of the wireless transmission means 17 associated with the clutch measures a change in strain resistance in the clutch.

Then, with the rotation of the moving body 1, the tightening of the cap c by the cover means 2 progresses, and when the winding means 2 reaches the tightening end position E, the transmitting member in the wireless transmitting means 17 is transmitted. When the control unit 19 determines that the signal received by the receiving unit 18 is data within the range of the appropriate torque value T, the closed container b is transported to the transport line L as it is, and is sent to the next step by the transport line L.

However, the wireless signal from the winding detection member 15 received by the receiving means 18
When it is determined that the data is out of the range of the appropriate torque value T, the so-called covered container b, which has been determined to be inadequately tightened, is taken out by the feeding means 7 and then attached to the transport line L. It is fed into the discharge means 23 outside the transport line L by the taken out means 22.

As shown in FIG. 5, the receiving means 18 is installed at predetermined plural places (not shown) continuously or at intervals from the winding start position S to the whole winding end position E. Then, the state in which the cap C is fastened by each of the fastening means 2 around the container b is instantaneously determined by a radio signal of a predetermined frequency emitted from the fastening detection member 15 for each time and section in which the fastening progresses and for each section. (In real time) because the receiving means 18 receives the signal, the winding section R
All the data for each section in are obtained.

In each of the above-mentioned winding means 2, the frequency of the radio signal transmitted from the transmitting member 16 in each of the radio transmitting means 17 is set to be a natural frequency (different frequency). The signal for each means 2 can be identified.

Therefore, it is monitored from the outside of the covering device A whether or not the tightening of one cap c has faithfully passed the basic pattern shown by the torque fluctuation waveform as shown in FIG. Even if it is the container b in which the specified torque is obtained in the final part of the tightening,
By not passing through the above-mentioned basic pattern, it is difficult to see by various visual inspections such as a case where the cap c is improperly covered for other reasons, an abnormal tightening of the cap, or a defect of the cap c itself. Tightening can be detected. Also, by collating the received data with the basic pattern, it is possible to relatively easily find out and acquire the cause of the cause of the improper fastening due to the cause.

In particular, since the detection signal generated from the winding detection member 15 is sent to the receiving means 18 by radio, the rotary type covering device A does not require any complicated electric system connection means.

[0034]

According to the present invention constructed as described above, the restricting means for applying a predetermined tightening torque when the cap is tightened is connected to each of the tightening means, and these restricting means are connected to each other via the radio transmitting means. And a receiving means provided outside of the moving body, receives the detected tightening value, and based on the detected detected tightening value, determines the tightening of the cover. By performing the management, the rotational torque for tightening the cap is directly extracted as a signal as it is and converted into data, so that the attachment of the cap to the container is managed with high precision, and the tightening torque detected in the later process is not detected. The incidence of non-defective products can be greatly reduced.

The receiving means receives the detected value of the tightening between the position at which the tightening means starts and the position at which the tightening is completed in the movement of the moving body, so that the tightening is constantly performed during the tightening. Since the state data can be received, the tightening state can be checked and monitored while the tightening is in progress at an external position, and what is called a defective product outside the allowable range of the predetermined torque fluctuation waveform. Can be found instantaneously and can be immediately discharged from the transport line.

The structure is simple, and a modification to an existing covering device can be made. And so on.

[Brief description of the drawings]

FIG. 1 is a front view showing a main part of an embodiment of a multiple head type lidding apparatus employing a lidding method according to the present invention.

FIG. 2 is a plan view schematically showing the multi-head type covering device in FIG.

FIG. 3 is an explanatory view showing another embodiment of the multiple head type covering device in FIG. 1;

FIG. 4 is an explanatory diagram showing a relationship between a regulating unit and a receiving unit in FIG. 1;

FIG. 5 is a schematic plan view showing another example of the receiving means of the multi-head type covering device in FIG. 1;

FIG. 6 is an explanatory diagram showing a torque fluctuation waveform of the multi-head type cover device in FIG. 1 in a tightened state.

[Explanation of symbols]

 A multi-head type covering device b container c cap 1 moving body 2 tightening means 12 regulating means 17 wireless transmitting means 18 receiving means

Continuation of the front page (72) Inventor Ryuichiro Kame 2-15-16 Takanawa, Minato-ku, Tokyo Inside Autoguard Japan Co., Ltd. (56) References JP-A-5-229593 (JP, A) JP-A-4- 300146 (JP, A) JP-A-7-105469 (JP, A) JP-A 9-183073 (JP, A) JP-A 9-249293 (JP, A) JP-A 8-324689 (JP, A) Hira 2-59193 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B67B 3/26 B67B 1/06 B25B 23/14 G08C 17/00

Claims (4)

(57) [Claims] 1. A provided with a plurality of seaming means to the rotary mobile, in the plurality of heads type lidding apparatus for applying caps to containers during the rotational movement of the moving body by respective seaming means, said each winding clamping means To the container, and
When tightening the tape, a predetermined
Control means that give
Subsequently, the detected value of the cap tightening in each of the above-mentioned tightening means.
Wireless transmission means for transmitting the
The wireless transmitter provided externally and not subject to rotational movement
Receiving means for receiving a wireless signal of each stage, wherein each wireless transmitting means provided in each of the plurality of winding means is provided.
In the stage, the outgoing radio signal is
Set each line transmission means to transmit a different frequency.
A multi-head type covering device characterized by the above-mentioned. 2. The method according to claim 2, wherein a plurality of containers are provided in the middle of the container transport line.
The container into a rotary moving body provided with
During the rotational movement of the moving body by each of the winding means.
Cap on the container and cover the container
In the multi-head type covering device returning to the conveying line, a restricting means for applying a predetermined tightening torque when the cap is wound around the container is connected to each of the tightening means, and these restricting means are connected to each other. Means for each of the tightening means in each of said tightening means via wireless transmission means
The output value is different for each wireless transmission means.
A signal to receive the rotational movement of the moving body .
The externally provided receiving means receives the detected tightening value, and the control means performs appropriate operations based on the detected tightening value.
Covered containers that have been tightened within the range of positive torque value
Conveyed to the feed line, and tightening outside of the proper torque range
The covered cover container is discharged to the outside of the transport line, and the tightening management in the cover is performed, and a multi-head type cover method is provided. 3. The method according to claim 2, wherein the receiving means receives the tightening detection value at a position where the tightening is completed by the winding means during movement of the moving body. 4. The moving body according to claim 1, wherein the moving means is configured to move the moving body between a winding start position and a winding completion position.
Continuous transmission from wireless transmission means corresponding to the rotation trajectory of
3. The method according to claim 2, wherein the detected values of the detected tightening are continuously received.