JP3256373B2 - Pretreatment device for opening sealed containers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pretreatment apparatus for opening a sealed container, and more particularly to a pretreatment for peeling and opening a sealing type plug having an opening tab by using an opening apparatus. Related to the device.

[0002]

2. Description of the Related Art In general, a sample such as blood collected from a human body is obtained by inserting an injection needle through a rubber sample in a vacuum blood collection tube whose opening is previously sealed with a sample such as an aluminum foil with a rubber portion. Enclosed. At the time of the inspection, sampling is performed by opening the stopper of the vacuum blood collection tube.

[0003] In recent years, in order to prevent infectious diseases, it is necessary to pay close attention to the handling of specimens.
The development of an opening device that can be opened without touching the sample is desired, and the present inventors have previously developed a sealed container in which the opening is sealed by a sealing type stopper having a tab for opening. We proposed an opening device and filed a patent application by the present applicant on May 14, 1993.

[0004]

In the opening device disclosed by the present inventors, the gripping mechanism moves obliquely upward on the side opposite to the tab through the upper position of the sealed container. Since the plug is held by this holding mechanism,
It has the advantage that it can be peeled off from the opening as if it were peeled off by a human hand and can be reliably opened.

By the way, in order to hold the tab by the holding mechanism, the tab is at a predetermined position around a predetermined axis, that is, the opening position, and the tab is not bent downward and is not bent horizontally. Need to be awake.

However, conventionally, there was no apparatus for performing such pre-opening treatment, so that this pre-treatment had to be performed manually, which required a great deal of time.

The present invention has been made in view of such a situation, and it is possible to reliably move the tab to the open position and stop it, regardless of the position of the tab around the axis, and the tab is bent downward. It is an object of the present invention to provide a pretreatment device for opening a sealed container that can be reliably raised in the horizontal direction even when the container is closed.

[0008]

In order to achieve the above object, the invention according to claim 1 of the present invention relates to a sealed container having an opening portion sealed by a sealing type stopper having a tab for opening. A rotary drive mechanism for rotating the sealed container about a vertical axis in the opening pretreatment device; a tab raising mechanism for moving the closed bent container downward and for horizontally bending the tab bent downward; And a tab sensor that detects the tab and controls the rotary drive mechanism to stop the tab at a predetermined opening position.

According to a second aspect of the present invention, the rotary drive mechanism includes a rotary roller that is driven to rotate about a vertical axis, and a moving unit that moves the rotary roller toward and away from the sealed container. It is characterized by doing. Further, the invention of claim 3 is characterized in that a relief spring is provided between the rotating roller and the moving means.

The invention according to claim 4 of the present invention is characterized in that the tab raising mechanism is provided with a brush which rubs the tab bent downward by a rotation or vertical movement in a substantially horizontal direction. I do.

The invention according to claim 5 of the present invention is characterized in that the tab raising mechanism has a tangential direction of the sealed container between the tab which is tapered toward the tip and bent downward and the outer surface of the sealed container. A tab raising blade to be inserted is provided.

The invention according to a sixth aspect of the present invention is characterized in that the tab raising mechanism is provided with an air device for raising the downwardly bent tab in a substantially horizontal direction by air feeding or suction. I do.

[0013] Further, the invention according to claim 7 of the present invention provides:
The rotary drive mechanism and the tab raising mechanism also serve as a sealed container clamp mechanism at the time of opening.

[0014]

In the pretreatment apparatus for opening a sealed container according to the first aspect of the present invention, the sealed container is rotated around a vertical axis by the driving of a rotary drive mechanism. The raising mechanism approaches and the downwardly bent tab is raised horizontally. When a tab is raised, the tab sensor detects the tab and controls the rotation drive mechanism. As a result, the tab stops at the predetermined opening position. For this reason, it is possible to reliably hold and open the tab with the opening device.

In the pretreatment apparatus for opening a sealed container according to a second aspect of the present invention, the sealed container is rotated about a vertical axis by a rotating roller approaching / separating from the lateral direction.
Furthermore, in the third aspect of the present invention, since the relaxation spring is provided between the rotating roller and the moving means for moving the rotating roller, the pressing force of the rotating roller against the sealed container is stabilized, and the sealed container is not properly rotated. Or the sealing container is not damaged at all due to excessively large pressing force.

In the pretreatment apparatus for opening a sealed container according to a fourth aspect of the present invention, the tab raising mechanism includes a brush which rubs the downwardly bent tab in a substantially horizontal direction by rotation or vertical movement. Provided, in the case of a rotating brush, rotate upwards about a horizontal axis or an oblique axis,
In the case of a vertically moving brush, the brush moves up or down along the outer surface of the container. For this reason, the sealed container is rotated around the vertical axis by the rotation drive mechanism, and when the tab comes to the position of the tab raising mechanism, the tab is stroked upward from below and thereby bent downward. Tabs are raised horizontally.

In the pretreatment apparatus for opening a sealed container according to a fifth aspect of the present invention, the tab raising mechanism is provided with a tab raising blade tapering toward the front end. The sealed container is inserted tangentially between the downwardly bent tab and the outer surface of the sealed container. For this reason, when the tab comes to the position of the tab raising mechanism due to the rotation of the sealed container about the vertical axis by the rotary drive mechanism, the tab is pushed upward by the tab raising blade, thereby the tab bent downward. Is raised horizontally.

In the pretreatment apparatus for opening a sealed container according to a sixth aspect of the present invention, the tab raising mechanism is configured to supply air to the tab raising mechanism in such a manner that the downwardly bent tab is moved in a substantially horizontal direction by air feeding or suction. Because the device is provided, when the tab comes to the position of the tab raising mechanism by the rotation of the sealed container about the vertical axis by the rotary drive mechanism, the tab bent downwards is sent from the air pressure from below or from information from the information. Is caused in the horizontal direction by the suction of air.

Further, in the pretreatment apparatus for opening a sealed container according to claim 6 of the present invention, the rotation drive mechanism and the tab raising mechanism also function as a sealed container clamping mechanism at the time of opening. Therefore, a special clamping mechanism is not required, and the plug can be opened at the pre-processing position, so that the processing time and the processing space can be reduced.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an example of a pretreatment device for opening a sealed container according to the present invention. The pretreatment device 1 for opening a sealed container according to the present embodiment includes a rotary drive mechanism disposed on one side via a sealed container 2. 3 and a tab raising mechanism 4 and a tab sensor 5 arranged on the other side.

That is, as shown in FIG. 1, the hermetically sealed container 2 is sealed at its upper end with a sealing plug 6 having a tab 6a for opening.
Are stored in the sample rack 7 as a set of, for example, five samples, transported to the installation position of the opening pretreatment device 1 by the belt conveyor 8, and sampled after the opening pretreatment and the opening process by the opening device 9 described later It is transported to the area.

As shown in FIG. 1, the rotary drive mechanism 3 includes a rubber roller 11 which is driven to rotate about a vertical axis by a motor 12, and the rubber roller 11 is connected to a tip of a rod 15a of a cylinder 15. The cylinder 15 is brought into pressure contact with the outer peripheral surface of the sealed container 2 by the expansion and contraction operation of the cylinder 15, and the sealed container 2 is driven to rotate about a vertical axis. The rubber roller 11 is preferably connected via a relaxation spring 14 attached to a motor support member 13 for supporting a motor 12 as shown in the figure, so that elasticity is imparted when the rubber roller 11 is pressed against the container. ing. The number of the rubber rollers 11 is equal to the number of the rubber containers 11 corresponding to the distance between the sealed containers 2 in the sample rack 7.

Further, as shown in FIG. 1, the tab raising mechanism 4 includes a rotating brush 16 which is rotated upward by a motor 17 about a horizontal axis or an oblique axis. , The motor 17 and the rod 18a of the cylinder 18
By the expansion and contraction operation of, it moves far and near with respect to the sealed container 2. The rotating brush 16 is pressed against the outer peripheral surface of the sealed container 2 at a position corresponding to the tab 6a, and raises the downwardly bent tab 6a in the horizontal direction. The number of the rotating brushes 16 is also equal to the number of the corresponding sealing containers 2 in the sample rack 7.

As shown in FIG. 2, for example, the rotary brush 16 is formed by implanting a large number of plastics, rubbers, steel wires, or the like on its peripheral surface. In this case, a certain elasticity is obtained, and the elasticity allows the tab 6a to be raised in the horizontal direction without damaging the tab 6a.

The tab sensor 5 is constituted by, for example, an FS type optical fiber sensor. As shown in FIG. 3, when the tab 6a bent downward is raised in the horizontal direction, the LED (LED) is turned on. (Not shown) is reflected by the tab 6a and received by the phototransistor (not shown), whereby the tab 6a is raised in the horizontal direction and the tab 6a is passed directly below the tab sensor 5. Is detected. Then, this detection signal is given as a control signal to a motor 12 for driving the rubber roller 11, and the sealed container 2 is moved when the tab 6 a comes to a predetermined opening position, specifically, just above the rubber roller 11. The rotation stops.

The sample rack 7 accommodating the sealed container 2 is conveyed by the belt conveyor 8 as described above.
As shown in FIG. 4, a stopper 20 driven by a cylinder 19 is provided at the position where the rack is installed, a rack presence / absence detection sensor 21 is provided on the upstream side, and a rack passage confirmation sensor is provided on the downstream side. 22 are provided.

The rack presence / absence detection sensor 21 outputs a stop signal for the belt conveyor 8 when the sample rack 7 is detected, and the sample rack 7 is brought into contact with the stopper 20 when the belt conveyor 8 stops. , The stop positioning accuracy is improved. The stopper 20 is retracted from the belt conveyor 8 by, for example, an opening completion signal, and then the sample rack 7 is sent to the sampling area when the belt conveyor 8 is restarted. Further, the rack passage confirmation sensor 22 outputs a drive signal of the stopper 20 by confirming passage of the sample rack 7,
The stopper 20 returns to the state shown in FIG. 4 by the input of the drive signal.

On the other hand, as shown in FIG. 1, the opening device 9 is attached to a support column 31 via an attachment shaft 32 so as to be adjustable in angle, and is attached to a tip of a rod 33a of the drive cylinder 33. A gripping mechanism 34,
After the tab 6a is gripped by the gripping mechanism 34, the plug 6 is pulled obliquely upward on the opposite side to the tab 6a through the upper position of the sealed container 2 by driving the drive cylinder 33, and the sealed container 2 Is to be stripped from

That is, as shown in FIG. 1, the gripping mechanism 34 is provided with a support member 35 fixed to the tip of the rod 33a.
And an opening / closing cylinder 36 fixed to the upper surface of the support member 35.
A vertically inverted truncated cone-shaped chuck body 37 for holding the tab 6a between the support member 35 and the lower surface thereof is fixedly provided at the lower end thereof. The number of the gripping mechanisms 34 is the same as the number corresponding to the interval between the sealed containers 2 in the sample rack 7.

The chuck body 37 is opened and closed by driving the opening / closing cylinder 36 to hold the tab 6a, and the stopper 6 holding the tab 6a by the holding mechanism 34.
By driving the drive cylinder 33,
The plug 6 is peeled off from the sealed container 2, and the peeled plug 6 is discarded by the shooter 38 by opening the chuck body 37.

Next, the operation of the present embodiment will be described.
The sealed containers 2 are conveyed by the belt conveyor 8 in a state where, for example, five sealed containers 2 are mounted on the sample rack 7. As shown in FIG. 4, a stopper 20 is installed at the installation positions of the opening pretreatment device 1 and the opening device 9, and the sample rack 7 conveyed by the belt conveyor 8 is located upstream of the stopper 20. It is first detected by a rack presence / absence detection sensor 21 provided. Then, first, the rack presence / absence detection sensor 21 detects this. Then, the rack presence detection sensor 21
, A stop signal is output, the stop signal causes the belt conveyor 8 to stop, and the sample rack 7 stops in a state of contact with the stopper 20.

When the sample rack 7 stops, as shown in FIG. 5, the motor 12 of the rotary drive mechanism 3 is started, the rubber roller 11 is driven to rotate around the vertical axis, and the cylinder 15 is extended by the extension operation of the cylinder 15. The rubber roller 11 is pressed against the outer peripheral surface of the sealed container 2, and the sealed container 2 rotates around the vertical axis in the sample rack 7.

Simultaneously with or before or after this, the motor 17 of the tab raising mechanism 4 is started, and the rotary brush 16 is driven to rotate about the horizontal axis or the oblique axis in the counterclockwise direction in the drawing, and the cylinder 18 is rotated. The rotating brush 16 is pressed into contact with a position corresponding to the tab 6a on the outer surface of the sealed container 2 by the extension operation. Thereby, the tab 6a bent downward is raised in the horizontal direction. At this time, the tab 6a is not always located at the position of the rotating brush 16,
Since the sealed container 2 is rotationally driven by the rubber roller 11, the tab 6a always passes through the position of the rotating brush 16 after one rotation, so that the sealed container 2 with the tab 6a bent downward remains. There is no such a problem.

When the tab 6a is raised horizontally, FIG.
As shown in (1), the tab sensor 5 detects this, and a control signal is output from the tab sensor 5 to the rotation drive mechanism 3 and the tab raising mechanism 4. As a result, the rubber roller 11 stops with the tab 6a at the open position (the position immediately above the rubber roller 11), and the rotary brush 16 also stops at about the same time. FIG. 6 shows this state.

In this state, the sealed container 2 is sandwiched and fixed from both sides by the rotary drive mechanism 3 and the tab raising mechanism 4, and this state is maintained by the opening device 9 until the end of the opening operation. Is done. That is, the rotation drive mechanism 3 and the tab raising mechanism 4 also serve as a sealed container clamp mechanism at the time of opening.

When all the tabs 6a of the sealed containers 2 are stopped at the opening position with the tabs 6a raised in the horizontal direction, the driving cylinder 33 of the opening device 9 is extended as shown in FIG. The supporting member 35 at the distal end of the stopper 3a stops in the state of being close to the plug 6.

Next, as shown in FIG.
The opening / closing cylinder 36 is extended to open the chuck body 37, and the tab 6a is positioned between the support member 35 and the chuck body 37.

Next, as shown in FIG. 9, the opening / closing cylinder 36 is contracted, and the tab 6a is clamped and fixed between the support member 35 and the chuck body 37. And then
As shown in FIG. 10, the drive cylinder 33 performs a contracting operation. Then, the gripping mechanism 34 moves obliquely upward on the opposite side to the tab 6a through the upper position of the sealed container 2, and the stopper 6 is peeled by a human hand as if by a human. 2 is peeled off from the upper end opening, and is reliably opened.

When the drive cylinder 33 is reduced to the reduction limit, the opening / closing cylinder 36 expands and contracts only once, and the chuck body 37 is once opened and then closed. As a result, the plug 6 in which the tab 6a is held between the support member 35 and the chuck body 37 falls by its own weight and is discarded at a predetermined place by the shooter 38. As a result, the opening operation is completed, but when the opening operation is completed, the cylinders 15 and 18 are respectively contracted as shown in FIG.
And the clamp of the sealed container 2 by the tab raising mechanism 4 is released.

Simultaneously with or before or after the release of the clamp, the cylinder 19 shown in FIG.
0 retreats outside the belt conveyor 8, the belt conveyor 8 is driven, and the sample rack 7 is sent to a sampling area (not shown). When the sample rack 7 passes before the rack passage confirmation sensor 22, a signal is given from the rack passage confirmation sensor 22 to the cylinder 19, the cylinder 19 is extended, and the stopper 20 returns to the state shown in FIG.

Thereafter, the above operation is repeated, and the pre-opening process and the opening process are sequentially performed for each sample rack 7.

Thus, no matter what direction each sealed container 2 is accommodated in the sample rack 7, the downwardly bent tab 6a is surely raised in the horizontal direction, and the tab raised in the horizontal direction. 6a can be in the open position. For this reason, at the time of opening, the tab 6a can be reliably held and opened by the holding mechanism 34.

FIG. 11 shows a second embodiment of the present invention. In place of the tab raising mechanism 4 in the first embodiment, FIG.
The tab raising mechanism 44 is used.

That is, as shown in FIG. 11, the tab raising mechanism 44 includes a tab raising blade 45 tapering toward the front end, and the tab raising blade 45 has a tab bent downward. The tab 6a is inserted in a tangential direction of the sealed container 2 between the sealed container 2 and the outer surface of the sealed container 2, and the tab 6a can be raised in the horizontal direction by the movement of the tab 6a accompanying the rotation of the sealed container 2. . In other respects, the configuration is the same as that of the first embodiment.
The operation is the same.

Thus, even if this tab raising mechanism 44 is used, the same effect as in the first embodiment can be expected, and it can also function together with the rotary drive mechanism 3 as a sealed container clamping mechanism at the time of opening. .

In the embodiment shown in the figure, a mechanism for pressing the rotating roller against the outer surface of the container from the lateral direction is exemplified as the rotation driving mechanism of the sealed container. However, the present invention is not limited to this.
It may be rotated by a rotating body that moves up and down from above the sealed container, or may be rotated at the bottom of the sealed container. Also,
Preferably, a spring is interposed between the rotating roller and the moving means, but this is not essential. For example, a cushioning material may be attached to the rotating sliding contact surface of the roller itself.

In each of the above embodiments, the case where the sealed container 2 is processed in units of the sample rack 7 has been described, but the processing may be performed in units of the sealed container 2. The rotation drive mechanism 3 and the tab raising mechanisms 4 and 44 are
A dedicated clamp mechanism may be used instead of the closed container clamp mechanism at the time of opening.

FIGS. 12a to 12c show another embodiment of the tab raising mechanism. The tab raising mechanism shown in FIG. 12a is moved up and down by a cylinder 46 'or the like from below the tab 6a instead of the rotary brush 16. A brush 46 is provided, and the tab 6a bent downward is rubbed upward and raised in a substantially horizontal direction.

The tab raising mechanism of the embodiment shown in FIG. 12B is an air device 47 for feeding air from under the tab 6a to raise the bent tab 6a in the horizontal direction.
a.

Further, the tab raising mechanism of the embodiment shown in FIG. 12C has an air device 47b which sucks air from the side or above the tab 6a and horizontally raises the tab 6a bent downward. .

The tab raising mechanism used in the apparatus according to the present invention is not limited to the case where each of the above-mentioned embodiments is used alone. For example, an air device 47a or 47b and a brush 1 may be used.
6 or 46 may be combined.

By the way, when the gripping mechanism 34 is lowered to the tab gripping position of the container 2, the tab 6a may be bent downward by the tip of the chuck body 37 and may not be gripped. To solve this problem, the gripping mechanism 34 is moved forward and horizontally at the tab gripping position of the container 2.
It is desirable to provide a slide mechanism 48 for retreating.

As shown in FIG. 13, the slide mechanism 48 slidably engages the base 49 of the plug opening mechanism 9 with the hopper 38 in the horizontal direction.
A structure in which the base 49 itself of the plug opening device 9 is horizontally advanced and retracted by a driving device such as a feed screw 51 that rotates forward and backward by rotating the rack portion 52 of the gripping mechanism 34 as shown in FIG. A structure may be employed in which the pinion 55 is slidably engaged with the horizontal frame 53 at the end of 33a, and the pinion 55 which rotates forward and reverse by the motor 54 or the like meshes with the rack 52 of the gripping mechanism 34 to move forward and backward in the horizontal direction. With such a configuration, the gripping mechanism 34 lowered to the tab gripping position of the container 2 is advanced horizontally in a direction away from the tab 6a, and then the check body 37 is opened and retracted to the tab gripping position. 6a can be grasped.

[0054]

As described above, according to the first aspect of the present invention,
In the invention according to the invention, the sealed container is driven by the rotary drive mechanism to rotate about the vertical axis, and the tab raising mechanism is brought close to the sealed container, so that the tab bent downward is surely horizontally. When opening it in the direction and opening it using the opening device, there is no problem that the tab cannot be gripped, and the opening can be surely opened.

In the invention according to claim 2 of the present invention, since a relaxation spring is provided between the rotating roller and the moving means for moving the rotating roller, the pressing force of the rotating roller against the sealed container is stabilized. As a result, the rotation of the sealed container can be reliably controlled, and the damage of the sealed container can be prevented.

In the invention according to claim 4 of the present invention, since the tab raising mechanism is provided with a rotating or up-and-down moving brush, the tab is stroked upward from the lower side, whereby the tab is moved downward. The bent tab can be reliably raised in the horizontal direction.

According to a fifth aspect of the present invention, the tab raising mechanism is provided with a tab raising blade having a tapered shape toward the front end, and the tab raising blade is sealed with a tab bent downward. The tabs are inserted in the tangential direction of the sealed container between the outer surface of the container and the tab raising blade so that the tabs are pushed upward, thereby ensuring that the tab bent downward is raised in the horizontal direction. it can.

Further, in the invention according to claim 6 of the present invention, since an air device is used for the tab raising mechanism, the tab is folded downward by air feeding from below the tab or by air suction from above the tab. The bent tab can be reliably raised in the horizontal direction.

Further, the invention according to claim 5 of the present invention provides:
Since the rotation drive mechanism and the tab raising mechanism are used as a sealed container clamping mechanism when opening the cap, no special clamping mechanism is required, and the apparatus configuration can be simplified, and the pre-processing position can be used as it is. The stopper can be opened, so that the processing time and the processing space can be reduced.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a pretreatment device for opening a sealed container together with an opening device according to a first embodiment of the present invention.

FIG. 2 is a perspective view illustrating a configuration of a rotating brush.

FIG. 3 is an explanatory diagram showing an installation position of a tab sensor in relation to a rubber roller and a rotating brush.

FIG. 4 is a configuration diagram showing a mechanism for stopping a sample rack at a pre-opening processing position.

FIG. 5 is an explanatory diagram showing a state during pre-opening processing.

FIG. 6 is an explanatory diagram showing a state in which pre-opening processing has been completed.

FIG. 7 is an explanatory view showing an initial state of opening.

FIG. 8 is an explanatory view showing a state where the chuck body is opened.

FIG. 9 is an explanatory view showing a state where the chuck body is closed and the tab is gripped.

FIG. 10 is an explanatory view showing a state at the end of opening.

FIG. 11 is a main part configuration diagram showing a second embodiment of the present invention.

FIG. 12a is a schematic configuration diagram showing another embodiment of the tab raising mechanism.

FIG. 12b is a schematic configuration diagram showing another embodiment of the tab raising mechanism.

FIG. 12c is a schematic configuration diagram showing another embodiment of the tab raising mechanism.

FIG. 13 is a diagram corresponding to FIG. 1 provided with a slide means of a gripping mechanism.

FIG. 14 is a main part configuration diagram showing another embodiment of the sliding means of the gripping mechanism.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Pre-opening apparatus, 2 ... Sealed container, 3 ... Rotation drive mechanism, 4, 44 ... Tab raising mechanism, 5 ... Tab sensor, 6 ... Plug body, 6a ... Tab, 7 ... Sample rack,
9: opening device, 11: rubber roller, 12, 17: motor, 14: relaxation spring, 15, 18, 19 ...
Cylinder, 16: rotating brush, 20: stopper,
33: drive cylinder, 34: gripping mechanism, 36: opening / closing cylinder, 37: chuck body, 45: tab raising blade,
46: Up and down moving brushes 47a, 47b: Air device,
48 slide mechanism, 49 base, 50 servo motor, 51 feed screw, 52 rack part, 5
3 ... horizontal frame, 54 ... motor, 55 ... pinion.

──────────────────────────────────────────────────の Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B67B 7/12 B67B 7/16 B67B 7/20 B67B 7/00 B67B 7/92 A61J 1/14 G01N 35 / 02

Claims (7)

(57) [Claims] 1. A rotation drive mechanism for rotating a sealed container about a vertical axis in a pretreatment device for opening a sealed container whose opening is sealed by a sealing type plug having a tab for opening. A tab raising mechanism that raises a downwardly bent tab in a horizontal direction by approaching a sealed container that is closed; detecting a raised tab and controlling a rotary drive mechanism;
And a tab sensor for stopping the tab at a predetermined opening position. 2. The rotating drive mechanism according to claim 1, further comprising: a rotating roller that is driven to rotate about a vertical axis; and moving means that moves the rotating roller toward and away from the sealed container. Pretreatment device for opening sealed containers. 3. The pretreatment apparatus for opening a sealed container according to claim 2, wherein the rotation drive mechanism further includes a relaxation spring between the rotation roller and the moving means. 4. The sealed container according to claim 1, wherein the tab raising mechanism is provided with a brush for rubbing a tab bent downward by a rotation or a vertical movement in a substantially horizontal direction. Opening pretreatment equipment. 5. The tab raising mechanism includes a tab raising blade inserted in a tangential direction of the sealed container between a tab tapering downward and bent downward and an outer surface of the sealed container. The pretreatment apparatus for opening a sealed container according to claim 1, 2, 3, or 4. 6. The tab raising mechanism according to claim 1, wherein the tab raising mechanism includes an air device for raising a downwardly bent tab in a substantially horizontal direction by feeding or suctioning air. Pretreatment device for opening sealed containers. 7. A rotary drive mechanism and a tab raising mechanism,
6. The pretreatment apparatus for opening a sealed container according to claim 1, wherein the apparatus also serves as a sealed container clamping mechanism at the time of opening.