JPS6252419B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for manufacturing a bulb, for example, in which a mount is sealed on a bulb of a fluorescent lamp, and the sealing operation is followed by evacuation.

Generally, a tube is completed by sealing a mount provided with a filament at the open end of a bulb, but manufacturing such a bulb mainly requires the following operations. In other words, there is a sealing process in which the stem of the mount is brought into contact with the open end of the valve and their peripheral edges are heated and welded, a process in which the inside of the valve is evacuated after such sealing is completed, and during this evacuating process, the inside of the valve is The process of replacing air with nitrogen or inert gas, and the lighting process of passing electricity through a lead wire to the filament during evacuation to decompose and activate the electrode coating material. Depending on the situation, there is a process to fill in mercury or the like, and a process to seal and cut the exhaust pipe.

However, conventionally, the sealing machine for the sealing process and the exhaust machine that performs the process from the exhaust process up to the process of sealing and cutting the exhaust pipe are constructed completely separately, so that the sealing is completed. The valves were transferred from the sealing machine to the exhaust machine.
This transfer operation is not only extremely troublesome, but also requires a complicated transfer device, which makes the entire device complicated and increases the equipment cost.Furthermore, the transfer operation requires time, which reduces manufacturing efficiency.

For this reason, the present applicant has recently proposed a device that performs a series of processes from sealing to exhaust pipe sealing and cutting without changing valves (for example, Japanese Patent Application No. No. 156818, special request
No. 52-156819 and Japanese Patent Application No. 159930/1983). In other words, this device has a rotating plate at the end of the horizontal shaft,
This rotating plate has a mount head equipped with a through hole that holds the mount and connects the exhaust pipe, a sealing burner that heats the valve and stem, and a sealing burner (chipping burner) that seals and cuts the exhaust pipe. The rotary plate is provided with a valve holder that holds the valve facing the above-mentioned mount, and in the process of rotating the rotary plate continuously or intermittently with the rotation of the horizontal axis, the sealing burner and the exhaust gas are Predetermined processes are performed continuously by sequentially operating the through hole and exhaust pipe sealing burner.

However, in this case, the valve is held horizontally, so the mount is also positioned horizontally corresponding to the valve, so the mount manufactured with a mount machine is inserted into the mount head from the side. It was hot. In this type of device that loads the mount from the side, it is not only necessary to tilt the mount horizontally, but also the adjustment between the loading device and the mount head is troublesome. There are problems such as complications surrounding the manufacturing equipment.

This invention was made based on the above-mentioned circumstances, and its purpose is to pivot a mount head rotatably relative to a rotary plate, and to rotate the mount head when the mount is in the loading position. The mount can be inserted from above, making it easy to insert the mount.In this case, the passage leading to the exhaust vacuum source is separated from the mount head, which not only allows for smooth rotation of the mount head, but also protects the surroundings. It is an object of the present invention to provide a tube manufacturing device that does not require a large amount of space.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 7.

Figures 1 and 2 show the entire device.
In the figure, reference numeral 1 denotes a bed, and a fixed base 2 is provided on the left side of the figure, and a movable base 3 is attached on the right side.
The movable base 3 is guided so as to be movable in the direction of arrow A on rails 4, and is operated by a feed screw 5 and a feed handle 6. A drive motor 7 is attached to the fixed base 2,
This motor 7 includes a fixed base side drive shaft 8 and a connecting shaft 9.
The movable table side drive shaft 10 is rotationally driven through the movable table side drive shaft 10. The connecting shaft 9 has both ends flanged to the drive shafts 8 and 10, respectively.
These driving shafts 8 and 10 are detachably connected, and can be replaced with other connecting shafts when adjusting the movement of the movable base 3 when manufacturing fluorescent lamps with different bulb lengths. .
Each of the drive shafts 8 and 10 is designed to rotate the horizontal shafts 11 and 11, respectively.
Since the following configuration is symmetrical, unless otherwise specified, the movable table side will be explained and the fixed table side will be omitted.
That is, the drive shaft 10 is connected to a driven shaft 14 via bevel gears 12 and 13, and this driven shaft 1
4 is connected to the worm 17 via other bevel gears 15 and 16.
It is designed to rotate. The worm 17 meshes with a worm wheel 18 attached to the end of the horizontal shaft 11. Therefore,
The horizontal shaft 11 is continuously rotated at a constant speed by receiving the driving force from the motor 7 through the transmission means. This horizontal axis 11 is located coaxially with the horizontal axis 11 on the fixed base 2 side and is arranged horizontally. A rotating plate 19 is attached to the horizontal shaft 11, and a total of 24 valve holders 20, for example, are attached to the rotating plate 19 at equal intervals in the circumferential direction. Although not shown in detail, this valve holder 20 is used to hold a straight tubular valve in a horizontal position. Further, the rotary plate 19 is provided with mounting heads 21, which will be described later, corresponding to each of the valve holders 20. Furthermore, rotating plates 22a and 23a of center valves 22 and 23 are provided on the horizontal shaft 11, respectively, and one center valve 22 is used for supplying combustion gas to a sealing burner and an exhaust pipe cutting (chipping) burner. , and the other center valve 23 is for switching piping for evacuation, gas replacement, and argon gas filling. The fixed plates 22b and 23b of each center valve 22 and 23 are supported by a support plate 24 fixed to the movable base 3, and 25... are the respective gases arranged and supported by this support plate 24. This is continuity piping.
Further, rails 26 and 27 are disposed on the support plate 24 along the circumferential direction, and these rails 26 and 27 move when the mount head 21 is rotationally displaced as the rotary plate 19 rotates. According to the timing of the work, a predetermined portion of the mounting head 21 is moved and guided to perform a predetermined operation as described later.

By the way, 24 positions P ₁ to _{P 24} are set on the rotating plate 19, and these positions will be explained later, but here, as shown in FIG. 2, the mount supply mechanism and the valve supply mechanism are set. Let me explain. That is, the _P1 position on the rotary plate 19 is the mount loading position, and the mount 103 is sent by the conveyor 30 in a horizontal plane with its axial direction being vertical.
is transferred to the filament 107 in its original position by the transfer mechanism 31, that is, as shown in FIG.
The mount is passed to the mount head 21 of the rotary plate 19 at the _P1 position, with the exhaust pipe 109 facing upward and the exhaust pipe 109 facing downward. The position between P ₃ and P ₄ is the bulb loading position, and the phosphor coating applied to the inner surface of the bulb is transferred from the firing furnace 33 to the turret 35 via the chute 34. Between the above P ₃ and P ₄ , the valve holder 20, 20
The valve is now delivered to the

The aforementioned mounting head 21 will now be explained with reference to FIGS. 3 and 4. Although FIG. 3 and FIG. 4 are cross-sectional views taken in different directions, the explanation will be made using both figures to help understand the structure. First, the bulb 101 has a phosphor coating 102 on its inner surface and is supported by the bulb holders 20, 20. Also, the mount 103 is
A flared portion 105 of the stem glass 104 faces the opening edge of the bulb 101, and lead wires 106, 106 are sealed through the stem glass 104, and a filament 107 is attached to the tips of these lead wires 106, 106. An exhaust hole 10 is installed and opened on the side of the stem glass 104.
It is known that the exhaust pipe 109 is connected to the exhaust pipe 8 and led out.

By the way, the mount head 21 has a valve 101.
A sealing head 36 is arranged close to the valve 101, and an exhaust head 37 is arranged horizontally with the sealing head 36 and away from the valve 101. The sealing head 36 is moved by the arrow C by the guiding action of the rail 26.
It has a sealing head body 38 that is movable in the direction (same direction as arrow A in FIG.
is attached, and this sealed burner 39 has flame holes 40 facing toward the front center. The sealing burner 39 and the sealing head main body 38 form a gas passage 41, and this gas passage 41 communicates with a gas supply hose 42 made of rubber or the like. A mount holder 43 is integrally attached to the central part of the sealing head main body 38, and the distal end 43a of the mount holder 43 is fitted into one side of the flared part 105. 1
05 positioning. Two lead wire insertion holes 44, 44 are formed through the mount holder 43 along the axial direction. Further, this mount holder 43 has open air communication holes 45, 45 as shown in FIG. 4 in the side wall at a position near the tip 43a. This mount holder 43 and the sealing burner 39
A recess 46 is formed between the two, and a batting plate 47 is disposed in the recess 46. This batting plate 47 is inserted into guide holes 48, 48 formed along the axial direction in the sealing head main body 38.
It is connected to guide rods 49, 49 which are slidably inserted therethrough, and is constantly attracted and biased in the direction opposite to the direction of arrow C by coil springs 50, 50 attached to the rear ends of these guide rods 49, 49. and the guide rod 4
By pushing a pressing plate 51 provided at the rear end of each of the recesses 9 and 49 in the direction of arrow C, the recess 46 is advanced in the axial direction, that is, in the direction of arrow C. Note that the pressure plate 51 is provided with an exhaust pipe 109 and a lead wire 1.
A through hole 51a is formed through which the holes 06 and 106 pass. Furthermore, a chipping burner 52 is fitted into the mount holder 43. This chipping burner 52 has an exhaust pipe 109 in the center.
It has a through hole 53 through which it passes freely, and flame holes 54 are opened on the inner surface of the front end portion of this through hole 53. The flame holes 54 are formed at positions corresponding to the outside air communication holes 45, 45. The flame holes 54 are communicated with a gas hose 56 via a gas passage 55 formed within the chipping burner 52.

On the other hand, the exhaust head 37 is connected to the exhaust head main body 6 which is moved in the direction of arrow C integrally with the sealing head 36.
0, and an exhaust pipe introduction hole 61 is formed in this exhaust head main body 60. This exhaust pipe introduction hole 61
A fastening rubber 62 is attached to the holder, and this fastening rubber 62 is connected to a pressure air supply hose 63. When pressurized air is supplied from this hose 63, the tightening rubber 62 contracts in diameter to tightly and tightly hold the exhaust pipe 109. The exhaust pipe introduction hole 61 communicates with an exhaust passage 64, and the exhaust passage 64 is bent into a substantially U-shape and opens at a contact/separation end surface 65 formed on the exhaust head body 60. Note that the contact and separation end surfaces 65 face forward, that is, in the direction of arrow C.

In the sealing head 36 and exhaust head 37, as shown in FIG. 3, the sealing head main body 38 and the exhaust head main body 60 are integrally fixed to a suspension member 70. The suspension body 70 is suspended from a guide rod 73 via suspension arms 71 and 72 so as to be slidable in the direction of arrow C. The guide rod 73 has both ends connected to the stators 74, 74.
It is fixed to a suspension plate 75 via a suspension plate 75, which is supported by a suspension body 76. The suspension body 76 is rotatably suspended from a bracket 77 attached to the rotary plate 19 with a pin 78 at its upper end. And one of the above-mentioned suspension arms 7
2 is connected to an actuating rod 79, and a roller 80 is attached to the tip of the actuating rod 79, and this roller 80 is adapted to be guided by the rail 26. On the other hand, the suspension plate 75
Another roller 81 is also attached to one end of the rail 27, and this roller 81 is guided by the other rail 27. In addition, the rails 26 and 27 are
Although not shown in detail, it is bent three-dimensionally at the mount loading position as shown in FIG. It's summery.

Further, the bracket 77 is provided with a horizontal stand 82, and a guide tube 83 is mounted on the horizontal stand 82 in the horizontal direction. A sliding shaft 84 is inserted through the guide tube 83 so as to be slidable in the direction of arrow C. A stopper flange 85 is provided at one end of the sliding shaft 84, and a coil spring 86 is spanned between the stopper flange 85 and the guide cylinder 83, so that the sliding shaft 84 is moved in the opposite direction to the direction of arrow C. It is biased in the direction. A vacuum source connector 87 is fixed to the other end of the sliding shaft 84. This vacuum source connection body 87 has a passage 88 inside, and one end of this passage 88 is connected to the rotary plate 23a of the center valve 23 via a rubber hose 89, and is connected to a vacuum pump (not shown). The other end of the passage 88 is connected to the exhaust passage 64 of the exhaust head 37 so as to be able to come into contact with and separate from it. That is, the vacuum source connection body 87 has a connection surface 90 that faces the contact and separation end surfaces 65 formed on the exhaust head main body 60, and has a seal ring 91 made of rubber or the like on this connection surface 90. The passage 88 opens to the connection surface 90, so that when the contact/separation end surface 65 is in contact with the connection surface 90,
The passage 88 communicates with the exhaust passage 64.
In addition, 92 in FIG. 3 and FIG. 7 is a coil spring, which always biases the suspension member 70 in the opposite direction to the direction of arrow C.

As mentioned above, the rotary plate 19 configured in this manner has 24 positions P ₁ to P ₂₄ .
The operation of each position is illustrated in FIG. 5, and will be explained together with the following operation.

Valve 10 using the device configured as described above.
The working method from attaching the mount 103 to the mount 2 to completing the exhaust will be explained with reference to FIGS. 6 and 7.

The mount 103 sent to the _P1 position via the conveyor 30 and the transfer mechanism 31 is delivered to the mount head 21 at the _P1 position. In this case, the sealing head 36 and exhaust head 37 of the mount head 21 have been previously rotated in the vertical direction as shown in FIG. That is, the mounting head 21 consists of a sealing head 36 and an exhaust head 37.
is rotatably supported on a bracket 77 of the rotating plate 19 via a suspension plate 75, a suspension body 76, and a pin 78, and a roller 81 attached to the suspension plate 75 is guided by the rail 27. This is how it has become. Therefore, the rail 27 is P ₁
Since the roller 81 is located at the position shown in FIG. 7, the roller 81 is restrained and guided by the rail 27, and the mount head 21 is rotated in the direction of arrow D in FIG. 7 as shown in the figure. It has become an attitude. In this state, the through hole 53 of the sealing head 36, the lead wire insertion holes 44, 44, and the exhaust pipe introduction hole 61 of the exhaust head 36 face approximately in the vertical direction, so that the transfer mechanism 31 The mount 103 that has been sent in the vertical direction is positioned above the mount head 21 as shown in the imaginary line in FIG. In addition, the lead wires 106, 106 can be inserted into the lead wire insertion holes 44, 44 from above, respectively. In this state, the exhaust head 37 is separated from the vacuum source connection body 87, and the vacuum source connection body 87
Since it remains fixed to the bracket 77 on the rotary plate 19 side, the large diameter exhaust rubber hose 89 will not be significantly bent or deformed. In other words, this rubber hose 89 is normally configured to have a larger diameter than other rubber hoses 42, 56, 63, etc. in order to quickly exhaust air, but when the mount head 21 is rotated as shown in FIG. Even if the rubber hose 89 is bent, the rubber hose 89 does not bend or deform, so the hose 89 is less likely to deteriorate and has a longer lifespan. Moreover, if the hose 89 deforms together with the mount head 21, a large space is required, but if the hose 89 is fixed as described above, there is no need for space for the hose 89 to flex, and surrounding equipment and parts can be removed. It does not get in the way of the design and makes the whole thing more compact.

When the mount 103 is loaded in this way, the mount _head 21 is also guided by the rail ₂₇ and moved to the It is rotated in a direction opposite to the direction of arrow D in FIG. 7 and assumes a substantially horizontal posture. During this time, pressurized air is introduced from the hose 63 of the exhaust head 37 to expand the fastening rubber 62 to reduce its inner diameter, and the fastening rubber 62 fastens and supports the exhaust pipe 109.

Next, when the mounting head 21 moves between P ₃ and P ₄ , the still hot valve 101, which has been sent through the firing furnace 33, chute 34, and turret 35, is transferred to the valve holders 20, 20. It is passed and held horizontally. Then, while the mounting head 21 moves from P ₄ to P ₅ , the sealing head 36 and the exhaust head 37 are moved from the rail 26, respectively.
It is advanced in the direction of arrow C by the guiding action of 27,
These heads 36 and 37, that is, the mount 103 held on the mount head 21 are connected to the valve 1.
It is inserted into the open end of 01. This fitting is stopped when the peripheral edge of the flared portion 105 hits the opening edge of the valve 101.

At this time, the contact and separation end surfaces 65 of the exhaust head main body 60
contacts the connection surface 90 of the vacuum source connection body 87, and the seal ring 91 elastically contacts the contact/separation end surface 65, so that the exhaust passage 64 and the passage 88 are airtightly communicated with each other. The coil spring 86 absorbs the impact when the contacting and separating end surfaces 65 contact the connecting surfaces 90, and always urges the connecting body 87 in the direction opposite to the direction of arrow C to move the seal ring 91 to the contacting and separating end surfaces 65. It maintains airtightness by making it come into ballistic contact with the air.

Next, when the mount head 21 moves to the _P6 position,
The sealing burner 39 is ignited, and a gas flame injected from the flame hole 40 is directed toward the abutting portion between the bulb 101 and the flare portion 105, and the gas flame heats and melts these abutting portions. Along with this melting, valve 1
01 and the mount 103 are sealed, and this sealing work is continuously performed from _P6 to _P12 . In the middle of such sealing work, the gas inside the valve 101 is replaced while the mounting head 21 moves from _P8 to _P11 . That is, various means are possible for this gas replacement method, but in the case of this embodiment, the valve 101
An inert gas such as nitrogen or argon is supplied from one end, and the valve 1 is supplied from the vacuum source connection 87 at the other end.
01 is adopted. Therefore, in this gas replacement process, the connection system of the center valve 23 on the fixed base 2 side and the connection system of the center valve 23 on the movable base 3 side are different from each other, and one center valve 23
is connected to a supply source of replacement gas, and the other center valve 23 is connected to a suction device such as a vacuum pump. During this process, the valve 101
Not only the air inside the valve 1 but also the impurities stored in the valve 101 and the mount 103
At this time, the valve 101 is maintained at a high temperature due to residual heat from the firing operation in the firing furnace 33, so no special heating is required during this gas replacement operation. .

During such sealing work and gas replacement work, the butting work is performed at a stage when the valve 101 and the flare portion 105 of the mount 103 are slightly softened, that is, at the _P9 position. In other words, when the mount head 21 moves to the _P9 position,
Since the pressing plate 51 is pressed by an appropriate means, the butting plate 47 moves forward against the coil springs 50, 50, and the valve 101 and the flare portion 10 are in a softened state.
Lightly press the contact portion with 5 to promote the mutual familiarity of these glasses.

Then, the filament 107 is preheated while the mounting head 21 passes from _P10 to _P11 .
That is, while the mount head 21 passes from P ₁₀ to P ₁₁ , electricity is passed through the lead wires 106, 106, and thus the filament 107 is energized. As a result, the filament 107 is heated, with the purpose of decomposing the electron radioactive substance coated on the filament 107. During this operation, gas replacement is performed, so that the decomposed and released substances are discharged to the outside of the valve 101.

Sealing is done in this way, and the sealing between the valve 101 and the mount 103 is completed at _P12 , so the sealing burner 39 is turned off.

By the way, the inside of the valve 101 is evacuated from the _P11 position immediately before the above-mentioned sealing is completed. In other words, if the exhaust passage 64 connected to the exhaust pipe 109 is connected to the vacuum pump by the center valve 23 via the vacuum source connector 87, the displacement gas remaining in the valve 101 can be removed from the exhaust pipe 109. It is discharged through the Such exhaust work is performed continuously between positions P ₁₁ and P ₁₉ , but during this exhaust work, the filament 107 is lit between P ₁₄ and P ₁₆ . This lighting is the same as the preliminary lighting at P ₁₀ to P ₁₁ , so the explanation will be omitted, but the lighting between P ₁₄ and _{P 16} completely decomposes the substance applied to the filament 107. The impurities occluded in the filament 107 are released. Unnecessary impurities discharged into the valve 101 are then removed to the outside of the valve 101 along with the exhaust gas.

When the exhaust work is completed in this way and the mount head 21 reaches the _P20 position, argon gas is filled through the exhaust passage 64 and the exhaust pipe 109. At this time, mercury can be added at the same time, but if the mercury alloy is attached to the mount 103 in advance, it is not necessary to enclose mercury.

Next, while moving from P ₂₀ to P ₂₁ , the chipping burner 52 is ignited and a gas flame is ejected from the flame holes 54. Then, the exhaust pipe 109 facing the gas flame
will be heated and melted to perform sealing cutting (chipping).

Then, between P ₂₁ and P ₂₂ , the sealing head 36 is moved in the direction opposite to the direction of arrow C by the rails 26, 27, and the lead wires 106, 106 are pulled out from the insertion holes 44, 44. . and P ₂₁ and P ₂₂
When the valve holder 20, 20 is opened, the valve 101 is released and the valve 101 is opened.
are placed on a delivery conveyor 96 via a chute 95 in FIG. 2 and sent out.

Incidentally, while returning from _P22 to _P1 , the sealing head 36 and exhaust head 37 are rotated in the direction of arrow D by the rails 26 and 27 to prepare for the next loading.

According to this embodiment, the valve 101 is attached to the valve holders 20, 20 of the rotating plate 19 that rotates continuously.
At the same time, a mount head 21 that moves integrally with the valve holders 20, 20 is provided at a position facing the valve 101, and this mount head 21 has a sealing function, an exhaust function, a batting function, and a filament lighting function. , a gas replacement function, an inert gas filling function, and a tipping function are provided at respective work positions, so that the above-mentioned work can be performed without the need to relocate the valve 101 at all. Moreover, the exhaust work can be started immediately before the end of the sealing work, and the batting work, gas replacement work, and preliminary lighting of the filament can be performed during the sealing work, and the coating material can be decomposed by lighting the filament during the exhaust work. Since activation (flushing) can also be performed, work efficiency is not only eliminated, but also greatly improved.

In the above embodiment, a case has been described in which the horizontal shaft 11 and the rotary plate 19 are rotated at a constant speed, but they may be rotated intermittently.

According to the invention described in detail above, the mount head is rotatably supported relative to the rotary plate so that the mount head faces approximately vertically at the position where the mount is inserted into the mount.
The mount can be inserted into the mount head from above, and therefore there is no need to change the orientation of the mount when transferring the mount from the mounting machine, which is normally manufactured in a vertical position, to the mount head, providing an exceptional loading device. becomes unnecessary. Furthermore, loading the mount from above makes it easier to adjust the position of the exhaust pipe and lead wires, reducing loading defects. In addition, when the mount head is rotated in this way, the vacuum source connection mechanism that connects the mount head and the vacuum source is separated from the mount head, so the mount head that is rotated becomes more compact and the vacuum source is removed. Since the hose that connects the power supply connection mechanism and the vacuum pump does not rotate and displace, there is little deterioration of the hose, and no extra space is required for rotation, so the surrounding space can be used effectively and the entire device is simple. There are advantages such as compatibility.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a partially sectional front view of the entire device, and FIG.
Figure 3 is a cross-sectional view showing the mount head part, Figure 7 is a cross-sectional view of the mount head part taken from a different direction, and Figure 5 shows the position of the rotating plate and the work. The diagrams showing the relationship, FIGS. 6 and 7, are explanatory diagrams showing different operating states. 11...Horizontal shaft, 19...Rotary plate, 20...Valve holder, 21...Mount head, 26,2
7...Rail, 36...Sealing head, 37...Exhaust head, 39...Sealing burner, 52...Tipping burner, 64...Exhaust passage, 76...Suspension body, 77...Bracket, 78... Pin, 83...
... Guide tube, 84 ... Sliding rod, 86 ... Coil spring, 87 ... Vacuum source connection body.

Claims (1)

[Scope of Claims] 1. A rotary plate is integrally provided on a horizontal shaft that rotates continuously or intermittently, and the rotary plate has a plurality of valves that hold the tube valve in a position where the tube axis is substantially horizontal. Holders are provided at equal intervals in the circumferential direction, and the rotary plate has a mount head that faces the open end of the valve held by each of the valve holders and holds a mount sealed to the open end. established,
These mount heads are connected to a sealing burner that seals the stem of the mount to the open end of the valve, a chipping burner that seals and cuts the exhaust pipe of this mount, and this exhaust pipe to a vacuum source connection mechanism attached to the rotating plate. The mount head rotates integrally with the valve holder as the rotary plate rotates, so that sealing work and exhaust work can be performed continuously without relocating the valve. In a tube manufacturing device, the mount head is rotatably supported on a rotary plate and connected to a rail arranged in the circumferential direction, and the mount head receives the mount as the rotary plate rotates. , the mount head is guided by the rail and rotated vertically to receive the mount from above in a vertical position, and as the rotary plate rotates, the mount head moves to the mount receiving position. When the mount head is moved to a position other than the above, the mount head is rotated by the guide of the rail to move the mount to a horizontal position facing the open end of the valve, and the exhaust passage of the mount head is connected to the vacuum source of the rotary plate. A tube manufacturing device that is characterized by being airtightly connected to a mechanism.