KR101402788B1 - Seaming apparatus - Google Patents

Abstract

The present invention provides a seaming apparatus which includes a main body part and a pair of sealing operation parts. The main body part forms a transferring pathway on which a drum is transferred. Each sealing operation part is arranged to face each other, along a boundary in the direction crossing the transferring pathway at a right angle, on a working location of the transferring pathway, and moves along the movement pathway which crosses the transferring pathway at a right angle to sequentially seal both end of the drum transferred to the working location.

Description

SEAMING APPARATUS

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a seaming device, and more particularly, to a seaming device, in which, when a drum is loaded, the diameters of both ends of the drum are checked and a sealing roller having a corresponding diameter among a plurality of sealing rollers And seals both ends of a drum having various diameters.

In general, the upper opening portion of the drum-shaped body is covered with a lid, and the rim of the lid is wound around the circumferential direction of the body to be sealed.

The operation of rolling the drum lid around the body rim portion is called so-called seaming, and the seaming apparatus is usually used for the seaming operation.

There is a problem that defective seaming occurs when the roller operated to seal the drum is not precisely moved.

An object of the present invention is to confirm the diameters of both ends of the drum when the drum is loaded and to arrange both ends of the drum using a sealing roller having the corresponding diameter among a plurality of sealing rollers, And to seal both ends of the seam.

In a preferred aspect, the present invention provides a washing machine comprising: a main body portion provided with a working position in which a drum is located; A plurality of drums disposed in the main body so as to face each other with their working positions facing each other and sealing both ends of the drum positioned at the working position simultaneously or sequentially in a direction opposite to each other, A pair of sealing operation parts having sealing rollers of a pair; A drum loading unit for forming a transfer line for transferring the drum to the working position; And a diameter checking unit for checking the diameters of both ends of the drum transferred along the transfer line and sealing both ends of the drum by using a sealing roller corresponding to the identified diameter among the plurality of sealing rollers Lt; / RTI >

Wherein the diameter checking unit includes a stopper for controlling the feeding operation of the drum loading unit to drive the drum to be moved along the feeding line to stop the drum at a predetermined inspection position, To acquire an image of both ends of the drum positioned at the inspection position and to acquire a boundary image for both ends of the drum in an image for both ends of the drum transferred from the image acquiring device A diameter calculator for calculating the diameters of both ends of the drum using the boundary image and a sealing roller corresponding to the diameter calculated from the diameter calculator among the plurality of sealing rollers, The driving of the stopper is released, and an electrical signal is transmitted to the pair of sealing operation parts, The It is preferred to use the sealing roller having a group selected to so as to seal both ends of the drum.

The diameter checking unit further includes a pair of drum both end calibrating units arranged to face each other with the transfer line at the inspection position.

Wherein each of the pair of drum end-to-end corrector portions includes a rotation motor disposed on both center axial lines of the drum positioned at the inspection position and having a rotation axis, A first cylinder having a cylinder axis, a second cylinder having a second cylinder axis which is installed at right angles at an end of the first cylinder axis and which is expandable and contractible, and a pair of correcting rollers provided at both ends of the second cylinder shaft, A reference image is preset for both ends of the drum, and the boundary image for both ends of the drum is compared with the reference image so that the boundary image matches the reference image The pair of calibrating rollers may be in contact with the first cylinder and the second cylinder so as to be in close contact with both sides of the rim of both ends of the drum, Controlling driving of the second cylinder, and by rotating the rotation shaft of the rotation motor is preferably provided with a calibration controller to ensure that the rolling according to the both ends of the rim of the drum in a state of being in close contact with both sides of both ends of the rim of the drum.

Wherein the correcting roller support member comprises: a third cylinder provided at an end of the second cylinder and having a pair of third cylinder shafts stretched and contracted at both ends; and a pair of third cylinder shafts formed on the pair of third cylinder shafts, And a pair of calibration roller rotary shafts provided so that the calibration roller is rotated.

The calibration controller preferably controls driving of the third cylinder so as to expand and contract the pair of third cylinder shafts.

Wherein each of the pair of sealing work portions includes a sliding plate disposed on the body portion and arranged to reciprocate linearly toward the working position, and a pair of sealing plates provided on the sliding plate, And a rotating unit installed on the sliding plate and rotating the working unit main body in a horizontal direction.

The rotator preferably receives the electrical signal from the selector and rotates the working unit main body so that the selected sealing rollers face the working position.

Wherein each of the pair of sealing work portions includes a cam which is disposed at an upper end portion of the working portion main body and is rotated by a speed reducer connected to the main shaft and a cam portion which is provided on the working portion main body and is in close contact with the outer periphery of the cam, And a pair of rotating rollers installed at a lower end of the elevating unit and rotated by external power.

And the sealing roller is rotated around the pair of rotating rollers in accordance with the lifting and lowering operation of the lifting unit, and it is preferable that one end of the drum is sealed when the sealing roller is rotated.

The pair of sealing operation parts are arranged such that the sealing rollers face each other.

The main body part is provided with a drive part for moving the pair of working part main bodies along the movement path.

And a controller for controlling rotation of the driving unit, the main shaft, and the speed reducer.

Wherein the controller is configured to rotate the cams of the pair of sealing work portions relative to each other at a time when the drum is intersected with each other using the speed reducer, .

Wherein the controller is configured to move the sealing rollers of each of the pair of sealing working portions so as to be in close contact with both ends of the drum by using the driving portion when the drum is located at the working position and sequentially rotate each of the sealing rollers It is preferable that the cam is driven so as to sequentially seal both ends of the drum.

In the present invention, when the drum is loaded, the diameters of both ends of the drum are checked, and both ends of the drum are sealed using a sealing roller having the corresponding diameter among the plurality of sealing rollers, It is possible to seal the opening.

Further, according to the present invention, when the drum is loaded, the state of both ends of the drum is checked, and when a defect such as distortion occurs, both ends of the drum are pressed and rolled before sealing to form a steady state, , It is possible to solve the problem that sealing failure occurs in advance.

Further, the present invention has an effect that beading can be performed at an accurate position by sealingly assembling both ends of the drum using two sealing rollers.

Further, in the present invention, each of the sealing rollers provided on each outer surface portion of the working portion main body is detachably installed from the working portion main body, and when the diameter of the sealing roller is to be changed, And has an effect that can be performed.

1 is a front view showing a seaming device of the present invention.
2 is a plan view showing a seaming device of the present invention.
FIG. 3 is a block diagram showing a configuration of a diameter checking unit and a drum both end calibrating unit according to the present invention.
Fig. 4 is a view showing that both ends of the drum are corrected using the drum double-end correction unit. Fig.
5 is a view showing that the sealing roller is rotated by the rotation of the working unit main body according to the present invention.
6 is a front view showing a state in which the cam is lowered in the sealing working portion according to the present invention.
7 is a front view showing a state in which the cam is raised in the sealing operation portion according to the present invention.

Hereinafter, a seaming apparatus according to the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a front view showing a seaming apparatus according to the present invention, FIG. 2 is a plan view showing a seaming apparatus according to the present invention, and FIG. 3 is a block diagram showing a configuration of a diameter checking unit and a drum end calibrating unit according to the present invention.

First, the configuration of the seaming device of the present invention will be described.

1 to 3, the shimming apparatus according to the present invention comprises a main body 100, a pair of sealing operation parts 200, a drum loading part 300, and a diameter checking part 400 .

At the upper end of the main body 100, a sliding rail 110 capable of sliding along the horizontal direction of each working unit main body 220 described later is provided.

The pair of sealing operation parts 200,

The pair of sealing operation parts 200 are disposed on the upper end of the main body part 100 so as to be spaced apart from each other.

At the upper end of the main body 100, a working position P where the drum 10 is positioned is provided between the pair of sealing operation parts 200.

At the working position P, the drum 10 can be fixed by a fixing device (not shown).

The pair of sealing operation parts 200 have the same configuration. However, they are disposed so as to face each other at the upper end of the main body 100 with the working position P as a boundary.

Each of the pair of sealing operation parts 200 includes a sliding plate 210 disposed on the body part 100 and arranged to reciprocate linearly toward the working position P, And a plurality of sealing rollers 230 installed on each of a plurality of side portions of the operation unit main body 220. The operation unit main body 220 is installed on the sliding plate 210, And a rotator 240 for horizontally rotating the rotor 240.

The rotator 240 receives an electrical signal from a selector 440 to be described later and rotates the work unit main body 220 so that the selected sealing roller 230 faces the work position.

The working unit main body 220 may have a rectangular shape. Therefore, four side surfaces are formed on the side surface of the working unit main body 220. [

Each of the sealing rollers 230 is rotatably disposed on the outer surface of the four surfaces.

Each of the sealing rollers 230 is a roller having diameters different from each other such as D1, D2, D3, and D4, and they are rotatably installed at a corresponding one of the outer surfaces of the working unit main body 220.

Accordingly, the positions of the sealing rollers 230 can be varied by horizontally rotating the working unit main body 220. [

Each of the pair of sealing operation parts 200 includes a cam 223 disposed at an upper end of the working part main body 220 and rotated by a speed reducer (not shown) connected to a main shaft (not shown) An elevating unit 224 mounted on the working unit main body 220 and brought into close contact with an outer periphery of the cam 223 and elevated by the rotation of the cam 223, And includes a pair of rotating rollers 225 that are rotated by external power.

The sealing rollers 230 are rotated around the pair of rotating rollers 225 in accordance with the lifting and lowering operation of the lifting unit 224 and are driven to seal one end of the drum 10 as they are rotated.

The drum-

The drum loading portion 300 forms a conveying line 310 such as a conveying rail or a conveying conveyor.

The transfer line 310 is driven to transfer the drum 10 by receiving power from a separate driving source 320. The separate driving source 320 may be controlled by a controller 600 described later.

The transfer line 310 is disposed so as to connect the working position P and transfers the drum 10 transferred from the outside to the working position P. [

The diameter checking unit 400,

The diameter checking unit 400 according to the present invention controls the feeding operation of the drum loading unit 300 to stop the drum 10, which is fed along the feeding line 310, An image acquirer 420 arranged to face the conveyance line 310 at the inspection position and to obtain images of both ends of the drum 10 positioned at the inspection position, , Image processing is performed to obtain a boundary image for both ends of the drum 10 in an image of both ends of the drum 10 transmitted from the image acquirer 420, And a sealing roller 230 corresponding to the diameter calculated from the diameter calculator 430 is selected from among the plurality of sealing rollers 230. The diameter calculating unit 430 calculates the diameter of the sealing roller 230, The stopper 410, And a selector 440 for transmitting electric signals to the pair of sealing operation parts 200 and sealing both ends of the drum 10 using the selected sealing roller 230 .

The stopper 410 is electrically connected to the driving source 320. When the drum 10 is transported to an inspection position formed by a sensor (not shown) at a predetermined position of the transfer line 10, ).

Thus, the drum 10 is placed on the transfer line 310, and stands still at the inspection position.

At this time, the image acquirer 420 disposed at the boundary of the inspection position acquires an image of both ends of the drum 10, and transmits the image to the diameter calculator 430.

The diameter calculator 430 image-processes an image of both ends of the drum 10 transmitted from the image acquirer 420 to obtain a boundary image for both ends of the drum 10, The diameter of the drum 10 at both ends is calculated.

The selector 440 receives the diameter calculated by the diameter calculator 430 and drives each of the rotators 240 so that the sealing rollers 230 having diameters corresponding to the diameters are positioned to face each other, (220) is horizontally rotated.

The selector 440 releases the driving of the stopper 410 and transmits an electric signal to the pair of the sealing operation units 200 to thereby control the rotation of the drum 10 using the selected sealing rollers 230. [ To seal both ends thereof.

The diameter checking unit 400 according to the present invention includes a pair of drum end-to-end calibrating units 500 arranged to face each other with the transfer line 310 as a boundary at the inspection position.

Each of the pair of drum end-to-end calibrating parts 500 includes a rotation motor 530 disposed on the center axis line at both ends of the drum 10 positioned at the inspection position and having a rotation axis 531, A first cylinder 510 having a first cylinder shaft 511 that is extendable and contractible from an end of the first cylinder shaft 511 and a second cylinder 511 which is installed at a right angle at an end of the first cylinder shaft 511, A second cylinder 520 having a cylinder axis 521 and a correcting roller support member installed at an end of the second cylinder shaft 521 and having a pair of straightening rollers 550 rotatably installed at both ends thereof 540), a reference image for both ends of the drum (10) is preset, and the boundary image for both ends of the drum (10) is compared with the reference image so that the boundary image does not match the reference image The pair of calibrating rollers 550 can be rotated in the same direction as the amount of the drum 10 The driving of the first cylinder 510 and the second cylinder 520 is controlled so as to be in close contact with both sides of the rim and the rotating shaft 531 of the rotating motor 530 is rotated, And a calibration controller 560 for allowing the drum 10 to roll along both edges of the drum 10 while being in close contact with both sides of the drum 10.

The calibrating roller support member 540 includes a third cylinder 541 provided at an end of the second cylinder 520 and having a pair of third cylinder shafts 541a stretched and contracted at both ends thereof, And the pair of straightening rollers 550 are rotatably installed on the third cylinder shafts 541a in parallel with each other.

The calibration controller 560 controls the driving of the third cylinder 541 so as to expand and contract the pair of third cylinder shafts 541a.

In addition, the above-described pair of drum end-to-end calibrating units 500 are arranged to face the transfer line 310 at the inspection position.

In this case, each of the image acquirers 420 described above is installed at the front end of the rotary motor 530 of the drum end-end calibrating unit 500, and it may be detachably installed.

Therefore, the image acquirers 420 are also arranged to face each other, and when the drum 10 is positioned at the inspection position, images of both ends of the drum 10 can be acquired.

Next, the drum sealing process using the seaming device of the present invention will be described.

Drum Loading Process (Drum Inspection Process, Drum Both End Calibration Process)

Referring to Figures 2 and 3, the drum 10 is transported along a transfer line 310.

When the drum 10 arrives at a predetermined inspection position on the transfer line 310, the stopper 410 interrupts the power of the driving source 320 and stops the drum 10 at the inspection position.

At this time, the respective image acquirers 420 are able to acquire images of both ends of the drum 10 on both sides of the inspection position.

Then, each image acquiring unit 420 acquires an image of both ends of the drum 10, and transmits the acquired image to the diameter calculator 430.

The diameter calculator 430 implements an image for both ends of the drum 10, thereby obtaining a boundary image for both edges of the drum 10.

The diameter calculator 430 calculates the diameters of both ends of the drum 10 in the boundary image corresponding to both edges of the drum 10 and transmits the calculated diameters to the selector 440 .

Here, the diameter of the calculated drum 10 at both ends is D Of course, diameters at one end and the other end of the drum 10 may be different from each other.

In the present invention, a case where the drum 10 is cylindrical and a case where the diameters of both ends of the drum 10 are equal to each other will be described as a representative example.

The selector 440 receives the diameters of both ends of the drum 10 and selects a sealing roller 230 having a diameter corresponding to the received diameter from the working unit main body 220.

The selecting unit 440 drives the rotating unit 240 connected to each working unit main body 220 so that the sealing roller 230 rotatably installed on each working unit main body 220 faces each other The working unit main body 220 can be rotated.

Then, the selector 440 controls the driving of the stopper 410 to release the power cutoff at the driving source 320. [

The drum 10 may be moved away from the inspection position and transferred to the working position P along the transfer line 310. [

Both ends of the drum 10 conveyed to the working position P are sealed by the selected sealing rollers 230 as described above. The sealing process will be described later.

On the other hand, in the present invention, the step of correcting the both ends of the drum can be further carried out.

That is, as described above, after the diameter check, a pair of drum end-to-end calibrating parts 500 located on both sides of the inspection position inspects the state of both ends of the drum 10, Can be calibrated.

The case where both ends of the drum 10 or both ends of the drum 10 are defective will be described as an example.

The calibration controller 560 can receive the image processed boundary image in the diameter calculator 430 described above.

The calibration controller 560 determines whether the boundary image matches the reference image for both ends of the drum 10.

Here, the reference image is a normal state of the edge of the drum 10 at both ends, that is, a distortion-free image.

Therefore, when the boundary image at both ends or one end of the drum 10 and the reference image do not coincide with each other, the calibration controller 560 determines that it is defective and sets the end of the drum 10 such that the boundary image is matched with the reference image Calibration.

The rotary motor 530 is disposed so as to coincide with the rotation axis of both ends of the drum 10.

Accordingly, the calibration controller 560 controls the first and second cylinders 510 and 520 to rotate the first and second cylinder shafts 511 and 521 so that both ends or one end of the drum 10 are positioned between the pair of calibrating rollers 550 ) Is adjusted.

The calibration controller 560 then adjusts the extension and contraction of the third cylinder shafts 541a so that both ends or one end of the drum 10 are pressed between the pair of straightening rollers 550.

The calibration controller 550 drives the rotation motor 530 to rotate the second cylinder 520 at a predetermined rotation speed.

Thus, the pair of correcting rollers 550 are rotated in a state in which the opposite ends or one end rim of the drum 10 face each other and pressurized.

Thus, the defective portion where the distortion is generated at both ends or one edge of the drum 10 can be corrected to be a steady state by being spread by a pair of pressure rollers 550 that are pressed and rotated.

After calibration, the calibration controller 560 checks whether the boundary image and the reference image coincide with each other again, and if so, moves the pair of calibrating rollers 550 in the first, second, And controls the driving of the rotation motors 510, 520, and 541 and the rotation motor 530.

The calibration controller 560 then releases the operation of the stopper 510 to cause the drum 10 to be transported to the working position along the transfer line 310.

Drum both-end sealing process

The sealing roller 230 of each sealing work portion 200 is a roller that is selected and rotated by the selector 440 and is located apart from both ends of the drum 10 positioned at the working position P .

The controller 600 moves the sliding plate 210 so that the sealing roller 230 of one sealing operation part 200 is closely attached to one end of the drum 10.

Next, the main shaft and the speed reducer of the sealing work part 200 are rotated to rotate the cam 223 as shown in Fig.

Then, as the cam 223 rotates, the lifting unit 224 is lowered while being pressed downward.

At this time, a pair of rotary rollers 225 provided at the lower end of the elevating unit 224 are brought into contact with each other while forming a pressing force on the outer periphery of the sealing roller 230.

Then, the controller 600 rotates the pair of rotating rollers 225.

Accordingly, the sealing roller 230 receives the rotational force from the pair of rotating rollers 225, rotates, and completes the sealing operation with respect to one end of the drum 10 which is in close contact with the rotating drum.

When the sealing operation of one end of the drum 10 is completed by the one sealing operation part 200 as described above, the controller 600 rotates the cam 223 to the original position, and the elevation unit 224 ) Is also raised. The lifting operation of the lifting unit 224 may be performed by elastic means constituting a restoring force to the home position.

Next, the controller 600 drives the other sealing operation part 200 in the same manner as above to complete the sealing operation of the other end of the drum 10.

Through the above-described arrangement and operation, the embodiment of the present invention can automatically transfer the drum to the working position, and after advancing each of the pair of sealing work portions, Both ends of the drum can be sealed and assembled at the same time by driving the sliding plates simultaneously sliding the main body.

Further, according to the embodiment of the present invention, the elevating and lowering unit is raised and lowered by the rotation operation of each cam, and both ends of the drum are sequentially rotated at both ends of the drum sequentially So that the drum can be efficiently sealed.

Particularly, in the embodiment of the present invention, when the drum is loaded, the diameters of both ends of the drum are checked, and a sealing roller having a corresponding diameter among the plurality of sealing rollers is arranged to seal both ends of the drum, Both ends of the drum having a diameter can be sealed.

In addition, the embodiment of the present invention confirms the state of both ends of the drum while loading the drum, and when the defects such as distortion are generated, the both ends of the drum are rolled by pressure before sealing to form a steady state, It is possible to solve the problem that sealing failure occurs due to defects.

Further, in the present invention, each of the sealing rollers provided on each outer surface portion of the working portion main body is detachably installed from the working portion main body, and when the diameter of the sealing roller is to be changed, .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

It is to be understood that the foregoing embodiments are illustrative and not restrictive in all respects and that the scope of the present invention is indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

100: main body 110: sliding rail
200: Sealing operation part 210: Sliding plate
220: working unit main body 223: cam
224: lift unit 255: rotary roller
230: Sealing roller 240: Rotor
300: drum loading part 310: transfer line
320: driving source 400: diameter inspection section
410: stopper 420: image acquisition device
430: Diameter Calculator 440: Selector
500: Drum end-to-end orientation 510: First cylinder
520: second cylinder 530: rotary motor
540: Correction roller supporting member 550: Correction roller
560: Calibration controller 600: Controller
P: Working position

Claims (8)

A main body portion provided with a working position where the drum is positioned;
A plurality of drums disposed in the main body so as to face each other with their working positions facing each other and sealing both ends of the drum positioned at the working position simultaneously or sequentially in a direction opposite to each other, A pair of sealing operation parts having sealing rollers of a pair;
A drum loading unit for forming a transfer line for transferring the drum to the working position; And
And a diameter checking unit for checking the diameters of both ends of the drum conveyed along the conveying line and sealing both ends of the drum using a sealing roller corresponding to the diameter of the plurality of sealing rollers .
The method according to claim 1,
The diameter-
A stopper for controlling the conveying operation of the drum loading part to drive the drum to be moved along the conveying line to stop at a predetermined inspection position,
An image acquiring unit arranged to face the conveyance line at the inspection position and to acquire images of both ends of the drum positioned at the inspection position,
Processing the image to obtain a boundary image for both ends of the drum in an image for both ends of the drum transmitted from the image acquirer, and calculating a diameter for both ends of the drum using the boundary image ,
A sealing roller corresponding to the diameter calculated from the diameter calculator is selected from among the plurality of sealing rollers, the driving of the stopper is released, an electrical signal is transmitted to the pair of sealing operation parts, And a selector which seals both ends of the drum by using a pressing member.
3. The method of claim 2,
The diameter checking unit may further include a pair of drum both end calibrating units arranged to face each other with the transfer line at the inspection position,
Wherein each of the pair of drum end-
A rotation motor disposed on the center axis line at both ends of the drum positioned at the inspection position and having a rotation axis;
A first cylinder having a first cylinder axis extending at a right angle from the end of the rotation shaft,
A second cylinder having a second cylinder axis extending at a right angle at an end of the first cylinder axis,
A correcting roller supporting member provided at an end of the second cylinder shaft and having a pair of correcting rollers rotatably installed at both ends thereof,
A reference image for both ends of the drum is preset and the boundary image for both ends of the drum is compared with the reference image so that if the boundary image does not coincide with the reference image, The first cylinder and the second cylinder are controlled so as to be in close contact with both sides of the rim of both ends of the drum and the rotary shaft of the rotary motor is rotated so as to be in close contact with both sides of the rim of both ends of the drum, And a calibration controller for causing the ball to move in a rolling direction along the axis.
The method of claim 3,
Wherein the correcting roller supporting member comprises:
A third cylinder provided at an end of the second cylinder and having a pair of third cylinder shafts extending and contracted at both ends,
And a pair of calibration roller rotation shafts formed on the pair of third cylinder shafts and provided so as to rotate the pair of calibration rollers,
Wherein the calibration controller controls driving of the third cylinder so as to expand and contract the pair of third cylinder shafts.
5. The method of claim 4,
Wherein each of the pair of sealing operation portions includes:
A sliding plate disposed on the main body and arranged to reciprocate linearly toward the working position,
A working unit body provided on the sliding plate and having a plurality of sealing rollers installed on each of a plurality of side portions,
And a rotator installed on the sliding plate for horizontally rotating the working unit main body,
Wherein the rotator receives the electrical signal from the selector and rotates the working unit main body so that the selected sealing rollers face the working position.
6. The method of claim 5,
Wherein each of the pair of sealing operation portions includes:
A cam disposed at an upper end of the working unit main body and rotated by a speed reducer connected to the main shaft,
An elevating unit installed on the working unit main body and brought into close contact with an outer periphery of the cam and being raised and lowered by the rotation of the cam;
Further comprising a pair of rotating rollers installed at a lower end of the elevating unit and rotated by external power,
Wherein the sealing roller is rotated circumferentially around the pair of rotating rollers in accordance with the ascending and descending operations of the elevating unit, and seals one end of the drum as it is rotated.
The method according to claim 6,
The pair of sealing operation portions may be formed in a shape
The sealing rollers are arranged to face each other,
In the main body portion,
A driving unit for moving the pair of working unit bodies along the movement path is provided,
And a controller for controlling rotation of the driving unit, the main shaft, and the speed reducer,
The controller comprising:
Wherein when the drum is positioned at the working position, the cams of the pair of sealing work portions are rotated based on a time point at which the cams intersect with each other using the speed reducer, thereby elevating and lowering each of the elevation units alternately Seaming device.
8. The method of claim 7,
The controller comprising:
When the drum is located at the working position,
The sealing roller of each of the pair of sealing working portions is moved so as to be in close contact with both ends of the drum by using the driving portion,
And drives each of the sealing rollers sequentially so as to sequentially seal both ends of the drum.

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