JP2017013119A - Seaming device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seaming device capable of easily adjusting an axial load applied to a can when seamed, preventing buckling of the can without application of an impact load, applying a constant axial load following reduction in height of the can to accelerate seaming.SOLUTION: A seaming device 100 comprises: can placing units 110 for placing cans C; a chuck unit 120 disposed facing the can placing unit; a seaming roll 131 for seaming a lid F onto the can C. The can placing unit 110 comprises a pressure mechanism 111 elastically pressing a plate 112 on which the can is placed, upward actuated with a hydrostatic pressure.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a can mounting unit for mounting a can, a chuck unit provided facing the can mounting unit, and a tightening device including a seaming roll for winding a lid onto the can.

Conventionally, a tightening device provided with a can mounting unit for mounting a can filled with beverages, a chuck unit provided facing the can mounting unit, and a seaming roll for winding a lid around the can It is known.
For example, as shown in Patent Document 1, a known winding device includes a seaming turret (1) that performs a winding process of a can and a lid, and a carry-in conveyor (supply) that supplies the can before the winding to the seaming turret. Conveyor 7), lid transport turret (supply turret 3) of the lid supply unit for supplying the lid, discharge turret (discharge turret 5) for unloading the rolled can from the seaming turret, and further removing the can from the discharge turret A carry-out conveyor (discharge conveyor 8) for carrying out to the outside is provided.

The seaming turret, discharge turret, and lid transport turret are provided with pockets (fitting recesses 2, 4, 6) for individually accommodating and transporting cans and lids on the outer periphery.
In each pocket of the seaming turret, a can placing unit (lifter 17) for placing a can, a chuck unit (seaming chuck device 10) provided facing the can placing unit, and a lid as a can Seaming rolls (18, 19) for tightening are provided.
In the winding device configured as described above, the speed and timing of each turret and each conveyor are matched with a gear or the like, and the operations of the can mounting unit, the chuck of the chuck unit, and the seaming roll arranged in each pocket are controlled by the gear. By interlocking with the rotation of the seaming turret by a cam mechanism or the like, the can and the lid conveyed at high speed can be continuously wound while being delivered.

Japanese Patent Laid-Open No. 62-244537

In such a known tightening device, when there is a can placement unit (lifter) provided in each pocket of the seaming turret and a knockout pad, the pad is rotated by the cam mechanism by the cam mechanism. Ascend and descend in conjunction.
The can supplied to each pocket of the seaming turret raises the can mounting unit (lifter), clamps the can and the lid with the chuck, and tightens the lid.
At the time of winding, it is desirable to hold the can and the lid with a constant axial load, and the force is generated by a pressing mechanism using a spring provided in the can mounting unit (lifter).
The constant axial load is set by adjusting the spring set length before the start of the operation of the tightening device, but each can mounting unit provided in each transport pocket has its own spring. This adjustment work took a lot of time and effort.

In addition, this pressing mechanism absorbs the impact when the chuck comes into contact with the lid placed on the can and has a function of preventing damage and buckling of the can. Since the amount is as small as 1 mm or less, in order to obtain a required axial load, the set load needs to be increased in advance, and the shock absorption is not sufficient.
It is possible to increase shock absorption by lowering the spring constant and lengthening the stroke, but increasing the stroke leads to an increase in the size of the device, and if the spring constant is low, it tends to cause load fluctuations. Since this is an impediment to speedup, it has been difficult to achieve both shock absorption and speedup.

On the other hand, since the can height is slightly reduced during winding, it is necessary to slightly raise the can mounting unit (lifter) in order to keep the axial load by the pressing mechanism constant.
For this reason, it is necessary to slightly raise and lower according to the can height reduction amount by the cam used for the vertical movement mechanism of the can mounting unit (lifter).
However, it is difficult to perfectly match the cam stroke with the can height reduction amount, and the can height reduction amount during winding is not constant, and the can height reduction amount is not equal to the tightening dimension (standard seam, Therefore, it is difficult to adjust the axial load applied to the can during winding.

For this reason, the equipment is adjusted and operated with a setting that allows for a certain error in the axial load associated with the reduction in can height, which increases the axial load adjustment time, can buckling, and speeds up. It was an obstruction factor.
In addition, the operation of each movable part is interlocked with gears, cams, etc., so that all the operation timings of the entire tightening device are matched. However, in order to perform continuous high-speed and accurate tightening, supply It is necessary to adjust the operation timing of each movable part according to the dimensions, weight, tightening dimensions, etc. of the can, and this adjustment work also requires a great deal of time and labor.

  The present invention solves the above-mentioned problems, can easily adjust the axial load applied to the can during winding, and prevents buckling of the can without applying an impact load. An object of the present invention is to provide a winding device capable of applying a constant axial load following a reduction in the height of a can during winding and increasing the speed of the winding process.

  A winding and tightening device according to the present invention includes a can mounting unit for mounting a can, a chuck unit provided to face the can mounting unit, and a seaming roll for winding a lid to the can. An apparatus, wherein the can mounting unit has a pressing mechanism that elastically presses the plate on which the can is mounted, and the pressing mechanism is configured to be operated by fluid pressure. The above-mentioned problem is solved.

According to the winding device according to the first aspect of the present invention, since the pressing mechanism is configured to operate with fluid pressure, the fluid pressure to be supplied is adjusted with the supply source in order to obtain a constant axial load. Therefore, it is not necessary to individually adjust the pressing mechanism of the can mounting unit provided in each pocket, and the adjustment work can be easily performed in a short time.
Further, by adjusting the axial load with the fluid pressure, the buckling of the can can be prevented without applying an impact load.
Furthermore, it is possible to apply a constant load following the reduction in the height of the can during tightening, improve the tightening accuracy, obtain stable tightening dimensions, and speed up the tightening process. It becomes.

According to the configuration of the second aspect of the present invention, by having a vertical movement mechanism that moves the can mounting unit up and down, the vertical movement mechanism can be used together with the pressing mechanism, and the vertical movement mechanism can be mounted on the can mounting unit. Can be simplified as a mechanism that only raises the chuck with respect to the chuck of the chuck unit.
According to the configuration of the third aspect of the present invention, the vertical movement mechanism is configured not to operate during the tightening operation of the seaming roll, thereby ensuring the operation of the pressing mechanism during the tightening operation. It becomes possible to carry out stably.
According to the configuration of the present invention, the plate of the can mounting unit and the chuck of the chuck unit and the seaming roll are tightened by the independently controlled drive sources, so that the plate Also, the timing of starting and accelerating the chuck, the timing of acceleration, the timing of the tightening operation, and the amount of pressing can be adjusted individually by controlling each drive source without stopping the operation, etc. Can be easily performed in a short time.
According to the configuration of the fifth aspect of the present invention, in the chuck unit, only the chuck is in contact with the lid, and the chuck performs centering of the lid and presses the lid, so that the position correction of the lid is facilitated. Since it is reliably performed, buckling is prevented without applying an unbalanced load, and the can can be made thinner.

According to the configuration of the sixth aspect of the present invention, the chuck has the lid adsorbing means, and the centering of the lid is performed by the lid adsorbing means, so that the fitting force between the chuck and the lid is improved, and the slip between them Winding defects can be prevented, the axial load can be reduced, the centering of the lid and chuck can be improved, and can buckling can be prevented.
According to the configuration of the seventh aspect of the present invention, the carry-in conveyor, the lid supply device, and the lid transport turret have drive sources that are independently controlled, so that the operation timing is not stopped by the operation panel or the like. Since it can be adjusted optimally individually, it is possible to easily perform an adjustment operation in a short time to prevent lid deformation, scratches, can dents, and poor tightening due to deviations in operation timing.
According to the configuration described in claim 8, since the drive source is a servo motor, adjustment can be performed by an electric control command, feedback control can be performed, and adjustment can be easily performed in a short time. Can be performed.
According to the configuration of the ninth aspect of the invention, the seaming turret has a detection unit that detects the position of the pocket, and the conveyance path of the carry-in conveyor has a pitch sensor that detects the attachment of the carry-in conveyor. Thus, the operation timing adjustment work can be performed more easily. In addition, it is possible to automatically detect and adjust errors in the position of each pocket or attachment and fluctuations in the position during operation, improving the tightening accuracy and increasing the processing speed. Become.
According to the configuration of the tenth aspect of the present invention, since the diaphragm that seals the fluid pressure is provided, a sliding seal member is not required, and there is no seal resistance when moving up and down, and the plate can be moved up and down smoothly. .
According to the configuration of the eleventh aspect of the present invention, the chuck unit includes the rotary blade pump that forcibly discharges the lubricating oil, thereby minimizing the accumulation of the lubricating oil at the upper part of the oil seal, and from the oil seal caused by the rotation of the chuck. It is possible to prevent leakage and fouling of the lubricating oil.

Explanatory drawing of the conveyance path | route of the winding fastening apparatus which concerns on one Embodiment of this invention. Cross-sectional explanatory drawing of the winding fastening apparatus which concerns on one Embodiment of this invention. Expansion explanatory drawing of the can mounting unit of the winding fastening apparatus which concerns on one Embodiment of this invention. The expansion explanatory drawing at the time of winding of a can. Expansive explanatory drawing at the time of handling of a lid | cover. Explanatory drawing of the conveyance path | route of the winding fastening apparatus which concerns on other embodiment of this invention. Expansion explanatory drawing of the other form of the press mechanism of a can mounting unit. The expansion explanatory view of other forms of a chuck unit. FIG. 9 is a cross-sectional view of FIG. 8.

As shown in FIG. 1, a winding device 100 according to an embodiment of the present invention includes a seaming turret 101 that performs a winding process of a can C and a lid F, and a can C before being tightened on the seaming turret 101. A carry-in conveyor 102 for supplying, a lid supply unit 104 provided with a lid supply device 105 for supplying a lid F and a lid transport turret 106, a discharge turret 107 for carrying out the can CM after winding from the seaming turret 101, a can An unloading conveyor 108 for unloading the CM from the discharge turret 107 to the outside is further provided.
The seaming turret 101, the discharge turret 107, and the lid transport turret 106 are provided with pockets P for individually accommodating and transporting cans C, CM, and lid F on the outer periphery, respectively. And an attachment 103 that is individually engaged and conveyed.
The rotational speed of the seaming turret 101, the discharge turret 107 and the lid transport turret 106, the moving speed of the attachment 103 of the carry-in conveyor 102, and the interlocking timing of each pocket P and attachment 103 are the can C, CM between each turret and conveyor. And the lid F is designed to be adjustable so that it can be delivered smoothly.

  As shown in FIG. 2, the seaming turret 101 that performs the winding process of the can C and the lid F is opposed to the can placement unit 110 that places the can C in each pocket P, and the can placement unit 110. The chuck unit 120 having the chuck 121 and the seaming unit 130 having the seaming roll 131 for winding the lid F around the can C are provided.

The seaming turret 101 is rotationally driven by a drive motor 151 and configured to be able to detect a pocket position from a rotational phase by a pocket position detection encoder 155.
In addition, a pitch sensor S composed of a photoelectric tube, a proximity switch, a laser, and the like for detecting the position of the attachment 103 of the carry-in conveyor 102 is provided on the carry path of the carry-in conveyor 102, and the seaming turret 101 is output by the output of the pitch sensor S. The position of the attachment 103 with respect to the pocket P of the lid transport turret 106 is controlled.
By detecting and controlling in this way, it is possible to perform adjustment work more easily, and automatically detect and adjust for errors in the position of each pocket and attachment and fluctuations in the position during operation. Therefore, it is possible to improve the winding accuracy and speed up the winding process.
The lid supply device 105, the lid transport turret 106, and the carry-in conveyor 102 are independently controlled by the drive motor 153 of the lid feed device 105, the drive motor 152 of the lid feed turret 106, and the drive motor 154 of the carry-in conveyor 102, respectively. Driven by the source.
In this way, by driving the carry-in conveyor 102, the lid supply device 105, and the lid transport turret 106 with drive sources that are independently controlled, the operation timing is individually optimized without stopping the operation with an operation panel or the like. Adjustment is possible, and adjustment work for preventing deformation, scratches, can dents, and poor tightening due to deviations in operation timing can be easily performed in a short time.
Servo motors are used for each motor, and the speed and timing can be adjusted individually, and the speed and timing of the seaming turret 101 can be changed according to the output of the pocket position detection encoder 155. It is configured.

Similarly, the rotation of the plate 112 and the chuck 121 uses the drive motor 157 of the can mounting unit 110 and the drive motor 156 of the chuck 121 as drive sources, and the roll swing shaft 132 is a drive motor 158 of the roll swing shaft 132. Are driven by independently controlled drive sources.
In this way, by driving with independently controlled drive sources, the rotation start and acceleration timing of the plate 112 and the chuck 121, the timing of the tightening operation and the pressing amount are controlled for the respective drive sources. As a result, the optimum adjustment can be performed individually without stopping the operation using the operation panel or the like, and therefore, the adjustment work can be easily performed in a short time.
Furthermore, by using a servo motor as the drive source, adjustment can be performed with an electrical control command, feedback control can be performed, and adjustment work can be easily performed in a short time.
Note that the discharge turret 107 and the carry-out conveyor 108, which are not shown in FIG. 2, deliver only the can CM after being tightened, and a certain degree of speed and timing deviation are allowed. Therefore, the driving motor 151 of the seaming turret 101 is acceptable. An appropriate drive source may be used such as mechanically driving through a transmission mechanism.

The can mounting unit 110 includes a plate 112 on which the can C is mounted and a pressing mechanism 111 that elastically presses the plate 112 upward.
As shown in FIG. 3, the pressing mechanism 111 is configured by inserting a piston 114 with a plate 112 fixed upward into a cylinder space 113, and pressure fluid such as compressed air is supplied into the cylinder space 113. Thus, the plate 112 is elastically pressed upward.
In this way, since the pressing mechanism 111 is operated with a fluid pressure such as compressed air, in order to obtain a constant axial load, it is only necessary to adjust the fluid pressure to be supplied with the supply source. There is no need to individually adjust the pressing mechanism 111 of the mounting unit 110, and the adjustment work can be easily performed in a short time.
Further, by adjusting the axial load with the fluid pressure, the buckling of the can C can be prevented without applying an impact load.
Furthermore, it is possible to apply a constant load following the reduction in the height of the can during tightening, improve the tightening accuracy, obtain stable tightening dimensions, and speed up the tightening process. It becomes.

The can placement unit 110 is moved up and down by a vertical movement mechanism 115 of the can placement unit 110 including a vertical movement cam 116 and a vertical movement cam follower 117.
The vertical movement cam 116 is fixedly provided. When the seaming turret 101 rotates, the vertical movement cam follower 117 moves following the cam profile, and the can placement unit 110 moves up and down according to the position.
By having the vertical movement mechanism 115 that moves the can placement unit 110 up and down, the vertical movement mechanism 115 is used together with the pressing mechanism 111, and the can C placed on the can placement unit 110 is moved with respect to the chuck 121. It can be simplified as a mechanism that only raises.
The vertical movement mechanism 115 of the can mounting unit 110 is configured not to operate during the seaming roll winding operation, so that the operation of the pressing mechanism 111 during the winding operation can be reliably and stably performed. Can be done.

The center ring by the chuck 121 of the chuck unit 120 described above is configured such that centering is performed by fitting the outer peripheral portion 126 of the chuck to the lid F as shown in FIG.
As shown in the figure, the chuck 121 does not have a conventional knockout pad as shown in the figure, and only the chuck is brought into contact with the lid F, thereby centering the lid F with respect to the can C and pressing the lid F. It is configured.
Thus, by performing centering of the lid F with only the chuck 121, the position correction of the lid F is facilitated, the buckling of the can C is prevented without applying an offset load, and the can C is made thinner. It becomes possible to plan.
Further, the chuck 121 is rotatably and fixedly provided, and as described above, the plate 112 of the can mounting unit 110 and the chuck 121 are rotated by the controllable driving source described above.

As shown in FIG. 5, the center ring of the lid F is provided with a negative pressure suction hole 125 at the center thereof, and is centered by adsorbing the lid F to the chuck 121, as shown in FIG. The can mounting unit 110 may be raised to place the lid F on the can C.
In this way, the lid F is attracted to the chuck 121 in advance to increase the fitting force, so that the winding failure due to the slip is prevented, so that the axial load applied to the can C can be reduced. Buckling can be prevented and thinning can be achieved.
When the lid F is placed on the can C, the lid F is reliably centered by suction by the chuck 121, so that buckling due to an uneven load is prevented.
Further, by controlling the rotation of the chuck 121, the rotation at the time of sucking the lid F to the chuck 121 can be controlled, and the lid F can be sucked by the chuck stably and reliably.
Furthermore, by controlling the rotation of the plate 112 of the can mounting unit 110, coupled with the rotation control of the chuck 121, the rotation of the plate 112 and the chuck 121 is controlled to a low speed state, and the shift of the rotation center is reduced. It is possible to prevent the can C from being dented or damaged due to contact between the can C and the side guide member or the like.
Also in this case, as described above, the rotation of the plate 112 of the can mounting unit 110 and the chuck 121 of the chuck unit 120 is performed by the controllable driving source described above.

Operation | movement of the winding fastening apparatus 100 comprised as mentioned above is demonstrated.
The can C before the lid F is wound is engaged with each attachment 103 of the carry-in conveyor 102 and is transported to the seaming turret 101.
On the other hand, the lids F are cut out one by one from the lid supply device 105 and transferred to the respective pockets P of the lid transport turret 106, and are directed to the seaming turret 101 by the rotation of the lid transport turret 106.
The speed and timing of the carry-in conveyor 102 and the lid transport turret 106 are adjusted in accordance with the speed and timing of the seaming turret 101 so that the centers of the can C and the lid F coincide at the junction point G. The lid F is placed on the can C placed on the plate 112 by raising the can placement unit 110 whose rotation is controlled by the servo motor 157 at the junction G.

Thereafter, when the can mounting unit 110 is further raised, the chuck 121 whose rotation is controlled by the drive motor (servo motor) 156 is fitted into the lid F and the centering of the lid F is performed (see FIG. 4). ), The can C on which the lid F is placed is held between the plate 112 and the chuck 121 with a certain axial load necessary for winding and tightening against the pressing force of the pressing mechanism 111 of the can placing unit 110.
When the can C on which the lid F is placed is sandwiched, a mechanism that elastically presses the plate 112 upward with a pressure fluid such as compressed air is used as the pressing mechanism 111. Since a constant pressing force is obtained and a constant pressing force is obtained regardless of the amount of pressing down of the plate 112, the adjustment is very easy and does not vary during operation.

When the seaming turret 101 further rotates, the plate 112 and the chuck 121 are accelerated to the number of rotations necessary for winding before the sandwiched can C reaches the winding section E shown in FIG.
As a driving source for the rotation of the plate 112 and the chuck 121, a mechanical mechanism may be used in order to interlock with the rotational phase of the seaming turret 101. However, the servo motors 157 and 156, which are independently controlled, are used. By using the driving source, the rotation start and acceleration timing of the plate 112 and the chuck 121 can be controlled independently, optimally adjusted individually without stopping the operation, and adjustment work can be easily performed in a short time. It can cope with fluctuations during driving.
In addition, by controlling the start of rotation and acceleration timing of the plate 112 and the chuck 121, the can C on which the lid is placed is moved up and down by the plate 112 of the can placing unit 110 that rotates and placed on the can C. When the chuck 121 of the chuck unit 120 that rotates is fitted to the lid F, the rotation of the plate 112 and the chuck 121 is stopped and controlled to a low speed state, and the deviation of the rotation center is reduced to contact the guide member or the like. The can C can be prevented from being dented or damaged, and the centering performance of the lid F by the chuck 121 can be improved.

While passing through the winding section E, the roll swinging shaft 132 of the seaming unit 130 is operated by the drive motor (servo motor) 158, and the seaming roll 131 is pressed from the side, whereby the winding is performed.
Although only one seaming roll 131 is shown in the figure, the roll swinging shaft 132 is actually provided with two seaming rolls 131 for primary winding and secondary winding. It is pressed sequentially while passing through the section E, and the winding is completed.
A mechanical mechanism may be used as the drive source of the roll swing shaft 132 in order to interlock with the rotational phase of the seaming turret 101, but by using an independently controlled servo motor 158 as a drive source. In addition, the timing and pressing amount of the seaming roll 131 are independently controlled, optimally adjusted individually without stopping the operation, and the adjustment work can be easily performed in a short time. deal with.

Further, as the pressing mechanism 111, a mechanism that elastically presses the plate 112 upward with a pressurized fluid such as compressed air is used. Therefore, when the height of the can C is slightly reduced during winding, Even if the error in the reduction in the can height is absorbed by the pressing mechanism 111, the axial load does not fluctuate, so that the tightening accuracy can be improved and the speed of the tightening process can be increased.
The can CM for which the winding has been completed is transferred from the seaming turret 101 to the discharge turret 107, and further transferred from the discharge turret 107 to the carry-out conveyor 108, and is carried out to the next process such as inspection and packing.

A winding tightening device 100b according to another embodiment of the present invention is a device in which a negative pressure suction hole 125 serving as a lid adsorbing means is provided in the chuck 121 described above (see FIG. 5), and as shown in FIG. The lid transport turret 106 is arranged so that the position Gb for sucking the negative pressure to the chuck 121 is on the upstream side of the seaming turret 101 from the junction G (see FIG. 1) of the above-described embodiment.
In this embodiment, first, at the position Gb where the upstream lid F is suctioned to the chuck 121 of the chuck unit 120 by negative pressure, the lid F is suctioned to the chuck 121 by negative pressure as shown in FIG.
Thereafter, at the junction point G, the can C is supplied onto the plate 112 of the can mounting unit 110, and the can mounting unit 110 is lifted, so that the can C is attracted to the chuck 121 of the chuck unit 120. Is held between the plate 112 and the chuck 121 with a constant axial load necessary for winding and tightening against the pressing force of the pressing mechanism 111.
This makes it possible to center the lid F alone.

FIG. 7 shows a can mounting unit 110b having another type of pressing mechanism. As shown in the figure, the pressing mechanism 111b air-tightens a piston 114b that lifts and lowers the plate 112b by a diaphragm 118b with respect to the cylinder space 113b. Configured to keep.
As a result, there is no sealing resistance when the piston 114b moves up and down, and the plate 112b can be raised and lowered smoothly.

8 and 9 show other forms of the chuck unit in the tightening device of the present invention. As shown in the figure, the chuck unit 120c has an oil seal 129c on the upper end thereof, and the chuck 121c is rotated. A rotating blade pump 127c that rotates is provided, and the lubricating oil is forcibly discharged from the discharge tube 128c by the rotation of the rotating blade pump 127c.
Thus, the lubricating oil stored on the oil seal 129c can be minimized, and leakage and contamination of the lubricating oil from the oil seal 129c due to the rotation of the chuck 121c can be prevented.

DESCRIPTION OF SYMBOLS 100 ... Winding device 101 ... Seaming turret 102 ... Carry-in conveyor 103 ... Attachment 104 ... Lid supply unit 105 ... Lid supply device 106 ... Lid conveyance turret 107 ... Discharge turret 108 ... Unloading conveyor 110 ... Can mounting unit 111 ... Pressing mechanism 112 ... Plate 113 ... Cylinder space 114 ... Piston 115 ... Vertical movement mechanism 116 ... Up and down Moving cam 117 ... Vertically moving cam follower 118 ... Diaphragm 120 ... Chuck unit 121 ... Chuck 125 ... Negative pressure suction hole (lid adsorbing means)
126 ... Chuck outer peripheral part 127 ... Rotary blade pump 128 ... Discharge tube 129 ... Oil seal 130 ... Seaming unit 131 ... Seaming roll 132 ... Roll rocking shaft 151 ..Seaming turret drive motor (drive source)
152 ・ ・ ・ Driving motor (driving source) for lid transport turret
153 ... Drive motor (drive source) of the lid supply device
154 ・ ・ ・ Drive motor for drive-in conveyor (drive source)
155... Pocket position detection encoder (detection means)
156... Chuck drive motor (drive source)
157... Can driving unit drive motor (drive source)
158... Roll drive shaft drive motor (drive source)
C ・ ・ ・ Can (before lid tightening)
F ・ ・ ・ Lid CM ・ ・ ・ Can (after the lid is tightened)
P ... Pocket E ... Winding section G ... Junction point

Claims (11)

A can mounting unit for mounting a can, a chuck unit provided facing the can mounting unit, and a winding device including a seaming roll for winding a lid on the can,
The can mounting unit has a pressing mechanism that elastically presses the plate on which the can is mounted;
The winding device, wherein the pressing mechanism is configured to operate with fluid pressure.   The winding and tightening device according to claim 1, further comprising a vertically moving mechanism that vertically moves the can placing unit.   The winding mechanism according to claim 1, wherein the vertical movement mechanism is configured not to operate during the winding operation of the seaming roll.   4. The rotation of the plate of the can mounting unit and the chuck of the chuck unit and the winding operation of the seaming roll are performed by independently controlled drive sources, respectively. The winding tightening device described. In the chuck unit, only the chuck contacts the lid,
The winding device according to any one of claims 1 to 4, wherein the chuck performs centering of the lid and presses the lid.   The winding and tightening device according to any one of claims 1 to 4, wherein the chuck has a lid adsorbing unit, and the lid adsorbing unit performs centering of the lid. A carry-in conveyor that supplies cans to the seaming turret, a lid supply unit that supplies a lid, and a lid supply unit that includes a lid transport turret;
The winding device according to any one of claims 1 to 6, wherein the carry-in conveyor, the lid supply device, and the lid transport turret have drive sources that are independently controlled.   The winding device according to claim 4 or 7, wherein the drive source is a servo motor. The seaming turret has detection means for detecting the position of the pocket;
The transport path of the carry-in conveyor has a pitch sensor that detects an attachment of the carry-in conveyor,
While controlling the speed of the carry-in conveyor by the output of the detection means,
The winding tightening device according to claim 7 or 8, wherein the position of the attachment with respect to the pocket of the seaming turret and the lid transport turret is controlled by the output of the pitch sensor.   The winding device according to any one of claims 1 to 9, wherein the pressing mechanism has a diaphragm for sealing fluid pressure.   The winding device according to any one of claims 1 to 10, wherein the chuck unit includes a rotary blade pump for forcibly discharging lubricating oil.

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