JPS6351854B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a welded can body manufacturing apparatus in which the welded part is corrected, and more particularly, the present invention relates to a welded can body manufacturing apparatus in which the welded part is corrected. For example, the exposed part may be covered with an organic resin alone, an inorganic substance such as a pigment,
The present invention relates to an apparatus for producing a welded can body with a welded portion corrected, which includes covering with a correction material such as a composite of organic resin containing metal or the like.

Prior Art and its Problems As an apparatus for manufacturing a welded can body with a corrected welded part, a welded can body is placed on a mandrel installed on a rotating member, and the welded can body is rotated by rotating the rotating member. A device was proposed in which the can body is fed from a can body feeding position to a can body delivery position via a heating position, a pressure holding position, etc. (Japanese Patent Application No. 10300/1983).

Although this previously proposed device is capable of achieving the desired effect, it has become clear that there are the following problems that should be further improved.

In this device, a plurality of mandrels and a temperature adjustment device, such as a heating device, are installed on a rotating member. It is preferable to use a rotating member because it allows various operations to be performed continuously. However, when a temperature regulating device that requires a relatively large amount of energy is installed on a rotating member, a problem arises in supplying energy from an energy source to the rotating temperature regulating device.

For example, as a method of supplying energy from an energy source to a temperature adjustment device (for example, a heating device), a method using a brush fixed to a rotating shaft and a stationary cylindrical body can be considered. However, according to this method,
The current fluctuates greatly depending on the contact state, and it is ON-OFF.
Sometimes a large current flows instantaneously, and there is a risk of damaging the oscillator, etc. Additionally, this method has problems such as sparks occurring at the contact portions, making it easy to break down.

According to the previously proposed device described above, a stationary primary coil, a secondary coil provided on a rotating member and a heating coil connected to this secondary coil are used. Electric power is transmitted from the primary coil to the secondary coil without contact by electromagnetic induction. Therefore, this device has a problem in that power loss is large when power is supplied to the heating coil. Furthermore, according to this device, a plurality of mandrels are provided on the rotating member, and each mandrel must be provided with a secondary coil and a heating coil, which makes the device placed on the rotating member heavy. It ends up. In particular, when rotating a rotating member intermittently, there are problems such as requiring a large-scale drive device or not being able to perform quick processing.

Alternatively, the temperature adjustment device and heating device installed on the rotating member of the previously proposed device may interfere with the work, such as when applying correction material to both the inside and outside of the welded part of the can body. There are problems such as:

Purpose of the present invention The present invention has been made in view of the above-mentioned circumstances.

SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus for manufacturing a welded can body in which the weld zone is corrected and there are fewer problems regarding the energy supply to the temperature regulating device.

Another object of the present invention is to provide an apparatus for manufacturing a welded can body with improved throughput and a corrected weld area.

Another object of the present invention is to provide an apparatus for manufacturing a welded can body in which the number of members that obstruct various related operations is corrected for the welded portion.

Other objects of the invention will become apparent from the description below.

Means for Solving the Problem According to the present invention, in order to solve the above-mentioned problem, there are provided a rotating member rotatably installed on a support member and rotationally driven, and a holder installed on the rotating member and holding a correction material. a pressing member installed on the rotating member to press the correction material held by the holding member against the welded portion of the can body; and a pressing member installed on the rotating member to apply a force opposing the pressing force by the pressing member. Provided is an apparatus for manufacturing a welded can body with a welded part corrected, comprising: a counter member to which the support member is installed; and a temperature adjustment device for adjusting the temperature of the correction material. .

Effect According to the present invention, the holding member that holds the correction material is installed on the rotating member, and the correction material held by the holding member is pressed against the welded portion of the can body by the pressing member. A counter member that engages with the can body is installed on the rotating member to counteract this pressing force. For this reason, the correction material is brought into pressure contact with the welded portion of the can body by a member separate from the temperature adjustment device, such as a heating device.
Therefore, there is no need to install a temperature adjustment device on the rotating member. The temperature of the correction material is adjusted by a temperature adjustment device installed on the support member separately from the rotating member.

Since the temperature adjustment device and the rotating member are installed separately, the weight of the device on the rotating member can be reduced, and heating efficiency can be improved. Further, there is no need to provide piping for cooling water for the heating coil and piping for cooling medium for the cooling device on the rotating member, and the structure can be simplified.

Embodiment First, a first embodiment of the present invention will be described with reference to FIGS. 1 to 3.

The device shown in FIG. 1 includes a fixed shaft 10, a disc-shaped rotating member 12, a peripheral stationary cam 14 (FIG. 2), and a
one adhesive device 16, a heating device 18 and a cooling device 2
0.

The rotating member 12 is rotatably supported around the fixed shaft 10 by a support member (not shown), such as an installation stand, and is driven by a drive device (not shown).
It is driven to rotate intermittently by 60 degrees.

The peripheral stationary cam 14 (FIG. 2) is connected to the rotating member 12.
and is fixed to the above-mentioned support member.

The six sticking devices 16 are fixed to the rotating member 12 at equal angular intervals. Each applicator 16 has a cam follower 22 (FIG. 2) that engages the peripheral stationary cam 14. Details of the pasting device 16 will be described later.

By intermittently driving the rotating member 12, each of the pasting devices 16 operates at a lower can body loading position in FIG. 1, a lower left heating position, an upper left cooling position, and an upper left position. They are sequentially positioned at the pressure holding position, the can barrel delivery position on the upper right side, and the transfer position on the lower right side. Can body 24 formed from a plate-shaped body by a welding device (not shown) at the can body feeding position on the lower side of FIG.
However, by a feeding device (not shown), the pasting device 16
will be installed on the At the heating position on the lower left side of FIG. 1, the joint 2 of the can body 24 is
6 and the tape-shaped resin 28 attached thereto are heated. At the cooling position on the upper left side of FIG. 1, the joint portion 26 and the tape-shaped resin 28 are cooled by a cooling device 20 described below. At the press holding position shown in the upper side of FIG. 1, the state in which the tape-shaped resin 28 is pressed against the joint portion 26 of the can body 24 is maintained. At the can body delivery position on the upper right side of FIG. 1, the can body 24 is delivered from the pasting device 16 by a delivery device (not shown). At the transfer position on the lower right side of Figure 1, a resin cutting and holding device (not shown) cuts a roll or sheet into a narrow tape, or a rolled tape. A tape-shaped resin 28 cut to a certain length and held is attached to the pasting device 16.
transferred to.

The peripheral stationary cam 14 (FIG. 2) moves from a position between the can body feeding position and the heating position, through a heating position, a cooling position, and a pressure holding position, to a position intermediate between the pressing holding position and the can body delivery position. Until, Come Follow 22
is held at the upper position in Fig. 2 (the position shown in Fig. 2), and from the intermediate position between the press holding position and the can body delivery position, the can body delivery position, the transfer position, and the can body delivery position are moved. 2, the cam follower 22 is held in the lower position in FIG. 2 to a position intermediate between the can body feeding position and the heating position.

The heating device 18 is located at a position close to and away from a joint 26 between a main body 30 fixed to a support member (not shown), which is, for example, an installation stand, and a can body 24 attached to a pasting device 16 positioned at a heating position. The heating section 32 is supported by the main body 30 so as to be movable between the two positions. Heating device 1
8, various heating means can be used,
Preferably, a high-frequency heating coil 33 is included to heat the can body 24 without contacting it.

The cooling device 20 includes a tape-shaped resin 28 and a can body 24.
This is for cooling these in order to obtain a suitable bond with the joint portion 26 of. As the cooling device 20, a device for supplying cold air as shown in the figure, a device provided with a cooling bar that comes into contact with the joint 26 of the can body 24 (not shown), or the like can be used.

The pasting device 16 will be described in detail with reference to FIGS. 2 and 3.

First, FIG. 2 shows the pasting device 16 in the heating position.
It shows. This pasting device 16 is a rotary member 1
a mandrel support part 34 fixed to 2; a mandrel 36 supported by the mandrel support part 34;
A cam follower 22 that engages with the surrounding stationary cam 14 to control opening and closing of the mandrel 36, and a mandrel 3
6 and a can guide 40 that supports the can body 24.

The mandrel support part 34 has a communication hole 42 that communicates with a vacuum source (not shown) via a control device (not shown), a central hole 44 that the cam follower 22 passes through, and a center hole 44 that connects the cam follower 22 in the longitudinal direction. The mandrel 36 is provided with a rail 46 that guides the mandrel 36 so that it can move only in the left and right directions in FIG. The communication hole 42 is selectively communicated with the atmosphere and a vacuum source by a control device.

The mandrel 36 includes a mandrel body 52 and a counter member 54, which have dovetail grooves 56 and 58, respectively, that fit into guide rails 50 provided on the upper part of the mandrel support 34. The support part 34 can only be moved in the leftward direction in FIG. 2, and cannot be moved in the vertical or upward direction. Two guide pins 60 (FIG. 3) are fixedly installed on the opposing member 54, and these guide pins 60 extend through holes 62 provided in the mandrel body 52.
A compression spring 66 is disposed between the flange portion 64 of the guide pin 60 and the mandrel body 52. As a result, the mandrel main body 52 and the opposing member 54 are always subjected to force in a direction in which they approach each other. A tape holder attachment plate 68 is fixed to the mandrel body 52, and a tape holder 70 is attached to the tape holder attachment plate 68. Between the mandrel main body 52 and the tape holding part mounting plate 68,
A conduction hole 72 communicating with the communication hole 42 is formed. A plurality of holding openings 74 are formed in the tape holding part 70 and the tape holding part mounting plate 68, and the holding openings 74 communicate with the through hole 72 and the outside. No matter where the mandrel body 52 is located, the conduction hole 72
Since the holding opening 7 and the communication hole 42 are in communication with each other, the holding opening 7
4 will be selectively placed in communication with the vacuum source and the atmosphere by the control device (not shown) described above. The tape holding part 70 has poor adhesion to the tape-shaped resin 28 (that is, it easily peels off), and has appropriate elasticity so that the tape-shaped resin 28 fits the welded part when pressurized, and does not deteriorate even after repeated heating. The holding opening 7 is made of a material that has characteristics that make it difficult to
The tape-shaped resin 28 is held by the vacuum force of 4.

The cam follower 22 includes an inclined plate 78 and an inclined plate 7.
8, a flange 82 provided at the end of the rod 80, a roller support section 84 connected to the flange 82, and a roller support section 84.
It is provided with two rollers 86 and two fitting parts 88 provided on the sides.

The inclined plate 78 is disposed between the mandrel main body 52 and the opposing member 54, and allows the mandrel 52 and the opposing member 54 to approach and separate from each other depending on the vertical position of the cam follower 22. Instead of the cam follower 22 and the inclined plate 78, the mandrel main body 52 and the opposing member 54 may be moved using fluid pressure such as hydraulic pressure. When the cam follower 22 is in the upper position (the position shown in FIG. 2) and the mandrel main body 52 and the opposing member 54 are separated, the cam follower 22 is held by the outer surface 55 of the opposing member 54 and the tape holding portion 70. Tape-shaped resin 28
are in pressure contact with the inner circumferential surface of the can body 24, respectively. When the cam follower 22 is in the lower position (not shown) and the mandrel main body 52 and the opposing member 54 are close to each other, the outer surface 55 of the opposing member 54 and the tape-shaped resin 28 are on the inner peripheral surface of the can body 24. Do not come into contact with.

As described above, the rod 80 passes through the central hole 44 of the mandrel support 34, and the rod 80
A flange 82 is provided at the end. A compression spring 90 is disposed between the flange 82 and the mandrel support portion 34, and the cam follower 2
2 is always forced toward the bottom of Figure 2.

A roller support section 84 is connected below the flange 82, and this roller support section 84 is provided with two rotatable rollers 86. The roller 86 moves up and down the cam follower 22 according to the shape of the peripheral stationary cam 14. Roller support part 84
The fitting portion 88 is also provided to fit into the rail 46 of the mandrel support portion 34 as described above.

The can guide 40 includes a can guide support part 92 fixed to the rotating member 12 and a guide part 94. Four guide rods 96 are fixed to the guide portion 94. One end of the guide rod 96 is arranged in the hole 98 of the can guide support part 92, and the flange part 1
00 is formed. A shoulder portion 102 is formed in the hole 98 of the can guide support portion 92 and engages with a flange portion 100 of the guide rod 96. This allows the guide portion 94 to be separated from the can guide support portion 92 within a limited range. A guide rod 96 between the guide portion 94 and the can guide support portion 92
A compression spring 104 is disposed around the guide portion 94 to force the guide portion 94 away from the guide support portion 92 . Mandrel body 52 and opposing member 54
Even when the can body 24 is not installed, the guide portion 94 is close to the opposing device 54.
It is adapted to come into pressure contact with the outer surface 55 of.

Next, the operation of the first embodiment will be explained.

First, at the transfer position on the lower right side of FIG. 1, the tape-shaped resin 28 is transferred from the transfer device to the tape holding portion 70 of the mandrel body 52 and held. In this position, the cam follower 22 is in a lower position (not shown) in FIG. 2, and the mandrel body 52 and opposing member 54 are in close proximity. The holding opening 74 of the tape holding part 70 communicates with a vacuum source.
The tape-shaped resin 28 is held by the tape holding part 70 by the vacuum force.

In the next can body feeding position, the mandrel body 52 and the opposing member 54 are in close proximity, and the guide portion 94 is attached to the outer surface 55 of the opposing member 54 so that the compression spring 1
04, they are in contact with a relatively weak pressing force.
A cylindrical welded can body 24 is inserted between the counter member 54 and the guide portion 94 so as to surround the mandrel body 52 and the counter member 54 by a feeding device (not shown). The can body 24 has a compression spring 1 between the opposing member 54 and the guide portion 94.
It is held in place by the pressing force of 04.

While moving from the can body feeding position to the heating position, the cam follower 22 is moved to the second position by the circumferential prevention cam 14.
The mandrel main body 52 and the opposing member 54 are moved to the upper position in the figure (the position shown in FIG. 2).
The mandrel body 52 moves to a spaced position.
The tape-shaped resin 28 supported by the can body 24 is brought into pressure contact with the inner surface of the joint 24, and
4 applies a force counteracting this pressing force to the portion 106 of the can body 24 opposing the joint 26.

At the heating position, the mandrel body 52 and the opposing member 54 are held apart, and the tape-shaped resin 28 is pressed against the joint 26 of the can body 24. After the applicator 16 is positioned at the heating position, the heating section 32 of the heating device 18 approaches the joint 26 of the can body 24 and seals the joint 26 and the tape-shaped resin 28.
heat up. In order to efficiently transfer energy, the heating part 32 is movably installed in the main body 30 so as to be able to approach the joint 26 of the can body 24 as described above.

At the cooling position, the tape-shaped resin 28 is maintained in pressure contact with the joint 26 of the can body 24. For example, by the cooling device 20 blowing cold air onto the joint 26 of the can body 24 and its vicinity,
Cool this. By using this cooling device 20 and the heating device 18 described above, desired temperature control can be performed.

At the press holding position, the tape-shaped resin 28 is attached to the can body 2.
The state of being in pressure contact with the joint portion 26 of No. 4 is maintained for a predetermined period of time. Maintaining the state in which the tape-shaped resin 28 is in pressure contact with the joint part 26 has the following advantages, such as allowing air remaining between the tape-shaped resin 28 and the inner surface of the joint part 26 to be discharged and strengthening the adhesive force between them. Preferred for reasons.

While moving from the pressure holding position to the can barrel delivery position, the cam follower 22 is moved by the peripheral stationary cam 14 to a lower position (not shown) in FIG. and move to a close position. When the mandrel main body 52 and the opposing member 54 move to a close position, the holding opening 7 of the tape holding part 70 of the mandrel main body 52
4 is communicated with the atmosphere, and the tape-shaped resin 28 is separated from the tape holding portion 70 and remains adhered to the joint portion 26 of the can body 24. When the mandrel main body 52 and the opposing member 54 are brought close to each other, the can body 24 is supported by the opposing member 54 and the guide portion 94.

At the can body delivery position, the can body 24 with the tape-shaped resin 28 adhered to the joint portion 26 is delivered from the sticking device 16 by a delivery device (not shown).

In addition, in the above-mentioned embodiment, the rotating member 12
Although the explanation has been made assuming that the rotating member 12 is driven intermittently by 60 degrees, it is also possible to configure the rotating member 12 to be driven to rotate continuously. When continuously driven to rotate, the heating device 18 and the cooling device 20
are installed so that they can reciprocate along predetermined arcuate paths, and the heating section 32 of the heating device 18 or the cold air outlet of the cooling device 20 is brought close to the joint 26 of the moving can body 24 for a predetermined period of time. Preferably, the heating device 18 and the cooling device 20 are configured to move along the above-mentioned trajectory so that the state is maintained.

Next, a second embodiment will be described with reference to FIG. The device of the second embodiment differs from the device of the first embodiment in that the opposing member 154 of the pasting device 116 is located outside the can body 124, but is otherwise configured similarly.

To explain further, the applicator 116 of the apparatus shown in FIG. 4 includes a mandrel body 152 fixed to the rotating member 112 and two opposing members 154 installed on the rotating member 112.

Mandrel body 152 supports a ramp plate 178 for controlled longitudinal movement similar to ramp plate 78 of cam follower 22 shown in FIG. Further, the mandrel main body 152 supports a tape holder mounting plate 168 and a tape holder 170, which are movable only in the left-right direction in FIG. 4 and are forced to move in the right direction in FIG. 4 by a compression spring (not shown). are doing. By moving the inclined plate 178, the tape holding part mounting plate 168 and the tape holding part 170
is in a retracted first position (not shown) and in a second position (shown in FIG. position). Between the tape holder mounting plate 168 and the inclined plate 178, there is a through hole 1 that communicates with a vacuum source (not shown) via a control device (not shown).
72 is formed, and the tape holding part mounting plate 16
8 and the tape holding portion 170 are provided with a plurality of holding openings 174 as in the first embodiment.

Each of the opposing members 154 includes a support 202 fixed to the rotating member 112 and a support 202 movable in the direction toward and away from the can body 124 disposed on the pasting device 116. It includes a pressure contact part 204 including a rod 203 passing through the hole, and a compression spring 206 disposed between the support body 202 and the pressure contact part 204 to force the pressure contact part 204 toward the can body 124. .

The device according to the second embodiment operates as follows.

In the apparatus according to the second embodiment, the tape-shaped resin 128 is supported by the tape holding member 170 at the transfer position, similar to the apparatus according to the first embodiment.
At the transfer position, the tape holding member mounting plate 16
8 and the tape holding member 170 are attached to the retracted first
position or the second position. The pressure contact portion 204 of the opposing member 154 is connected to the mandrel body 152.
is in pressure contact with the outer peripheral surface of.

In the can body feeding position, the can body 124 is disposed and held between the mandrel body 152 and the pressure contact portion 204 of the opposing member 154. In this position, the tape holding member mounting plate 168 and the tape holding member 1
70 is in the retracted first position, and when the can body 124 is placed, the tape-shaped resin 128 held by the tape holding member 170 does not come into contact with the can body 124. In order to easily insert the can body 124 between the mandrel body 154 and the pressure contact portion 204, the upper end portion (not shown) of the pressure contact portion 204 is connected to the upper end portion 208 (not shown) of the guide portion 94 of the first embodiment. As shown in Figure 2), it is tapered.

The inclined plate 1 of the cam follower is moved from the can body feeding position to the heating position by the pasting device 116.
78 is moved upward, the tape holding member mounting plate 168 and tape holding member 170 are moved from the retracted first position (not shown) to the second position shown in FIG. The tape-shaped resin 128 held by the holding member 170 is brought into pressure contact with the inner surface of the joint portion 126 of the can body 124. A counter member 154 provides a force to counter this pressure force.

At the heating position, cooling position, and press holding position, the can body 124 and the tape-shaped resin 128 are
As in the embodiment, heated, cooled,
Pressed and held.

The inclined plate 178 is lowered between the press holding position and the can barrel delivery position, and the tape holding member 170 is removed from the tape-shaped resin 128 as in the first embodiment.
is released.

At the can body delivery position, the can body 124 supported by the mandrel body 152 and the pressure contact portion 204 of the opposing member 154 is removed from the sticking device 116 by a delivery device (not shown).

In the above embodiment, a device for correcting the inner surface of the joint of a can body with tape-shaped resin has been described, but the present invention can also be applied to a device for correcting the outer surface of the joint. In this case, the tape-shaped resin is held by a tape holding member placed outside the weld.

Effects of the Invention In the device according to the present invention, the rotating member is provided with a member that opposes the pressure force that presses the correction material against the can body, and therefore it is necessary to provide the rotating member with a temperature adjustment device such as a heating device or a cooling device. There isn't. The temperature control device can be fixedly or reciprocably installed on a fixedly installed support member.

Furthermore, in the apparatus according to the present invention, the number of members to be installed on the rotating member can be reduced, so that quick operation is possible and various operations are facilitated.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional plan view of an apparatus according to a first embodiment of the invention. FIG. 2 is a partial sectional view taken along the line - in FIG. 1. Figure 3 shows the line -
A partial cross-sectional view along. FIG. 4 is a view similar to FIG. 3 of an apparatus according to a second embodiment of the invention; 10... Fixed shaft, 12, 112... Rotating member,
14... Surrounding stationary cam, 16, 116... Pasting device, 18... Heating device, 20... Cooling device, 22
...Cam follower, 24,124...Can body, 2
6,126... Joint portion, 28,128... Tape-shaped resin, 54,154... Opposing member, 70,17
0...Tape holding member.

Claims (1)

[Scope of Claims] 1. A rotating member that is rotatably installed on a support member and driven to rotate; a holding member that is installed on the rotating member and holds the correction material; and a holding member that is installed on the rotating member and that holds the correction material. a pressing member that presses the correction material held by the member against the welded portion of the can body; a counter member that is installed on the rotating member and applies a force to counter the pressing force of the pressing member; and an opposing member that is installed on the support member; 1. An apparatus for manufacturing a welded can body with a welded portion corrected, characterized in that the apparatus includes a temperature adjustment device for adjusting the temperature of the correction material. 2. The manufacturing apparatus according to claim 1, wherein the rotating member is continuously rotated. 3. The manufacturing apparatus according to claim 1, wherein the rotating member is rotated intermittently. 4. The manufacturing apparatus according to any one of claims 1 to 3, wherein the holding member is a mandrel placed inside the can body. 5. The manufacturing apparatus according to any one of claims 1 to 3, wherein the holding member is a holding member disposed outside the can body. 6 the opposing member is in contact with the inner surface of the can body,
The manufacturing device according to any one of claims 1 to 5, which resists the pressing force applied by the pressing member via the holding member and the correction resin. 7. The opposing member opposes the outer surface of the can body,
The manufacturing device according to any one of claims 1 to 5, which resists the pressing force applied by the pressing member via the holding member and the correction resin. 8. The manufacturing apparatus according to any one of claims 1 to 7, wherein the pressing member includes an inclined plate having a surface that slides into contact with one surface of the holding member. 9. The manufacturing apparatus according to any one of claims 1 to 7, wherein the pressing member includes a fluid pressure device. 10. The manufacturing apparatus according to any one of claims 1 to 9, wherein the temperature adjustment device is a heating device. 11. The manufacturing apparatus according to any one of claims 1 to 9, wherein the temperature adjustment device is a cooling device. 12. The manufacturing apparatus according to any one of claims 1 to 11, wherein a part of the temperature adjustment device is movable in a direction toward and away from the can body. 13. The manufacturing apparatus according to any one of claims 1 to 12, wherein the temperature adjustment device is installed so as to be able to reciprocate along the outer periphery of the rotating member.