JPS5820647A - Vessel made of metal and its manufacture - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in metal containers, and particularly to improvements in the seam portions, mouthpieces, etc. of metal containers and the parts associated with the wrapping.

For example, the seam part of a copper drum is usually manufactured by forming flanges on the periphery of the body plate, top plate, and base plate, and stacking the flanges appropriately and wrapping them multiple times.There are many proposals for the cross-sectional shape and structure of the seam part. It is also in practical use. The seam portion of these conventionally known metal containers is basically made by rolling up multiple metal plates with flat surfaces, and the metal plates that make up the seam portion contact each other with their flat surfaces and are rolled up. ing. Therefore, if the drum collides with another object due to an abnormality during handling and transportation, the metal plates at the seam, which are in contact with flat surfaces, will easily move relative to each other and separate, peeling off and loosening the winding of the seam. As a result, there is a risk that the sealing performance of the seam portion may be reduced or the contents may leak.

In a metal container having a cap, the cap is usually manufactured by press-fitting a press-fit flange into the cap of a top plate, and then tightening the upper part of the press-fit flange. Similar to the seam portion, the mouthpiece of the container and the mouthpiece press-fit flange are configured to have flat surface contact with each other. Therefore, as with the seam, if the container collides with another object due to a fall or other abnormality during handling and transportation, the container mouthpiece and mouthpiece press-fit flange are likely to move relative to each other, separate, etc., and the airtightness of the mouthpiece deteriorates. , or there is even a risk of leakage of the contents.

The present invention provides a seam portion and a cap portion that prevent the loosening of the seam portion or the loosening of the cap portion from winding and fitting as described above, and improve the strength and sealing performance when the container collides with an object. A container made of metal and a method for manufacturing the same have been developed, in which, in a metal container, one or more uneven portions are formed on part or all of the surface of a metal plate that constitutes the seam portion of the container, and the uneven portion of the metal plate is A metal container characterized by having a seam portion formed by a flat portion corresponding to a flat portion or a concavo-convex portion and a concave-convex portion corresponding to and fitting together, and a sealing agent sealed in a recessed portion of the concavo-convex portion. A metal container characterized by having a seam portion formed by a seam, and a metal container having one or more irregularities on a part or all of the surface of the metal plate forming the mouthpiece of the container and the mouthpiece press-fit flange. A metal container, characterized in that the metal container has a cap part formed by forming a part and each of the concavo-convex parts corresponding to each other and fitting together, and a metal container formed by sealing a sealant in the concave part of the concave-convex part. In the production of metal containers or metal containers characterized by having a mouthpiece, the seam part of the top plate and the bottom plate is formed in the blanking and pressing process of the top plate and the bottom plate, or in the process before and after blanking and pressing. Forming one or more uneven parts on either or both of the part constituting the cap part of the top plate and the part constituting the base part of the top plate, and the process of forming the flange of the body plate with a flanging machine, or before and after forming the flange. Forming one or more uneven portions on the part constituting the seam portion of the body plate in the step of step 3. By forming one or more of the uneven portions, the seam portion of the top plate, base plate, and body plate is formed. After forming an uneven portion in one or more of the components of the base plate and the base plate, press-fit any one of the top plate seam, the base plate seam, and the base flange. Alternatively, there is provided a method for manufacturing a metal container, characterized in that a plurality of containers are formed.

The technical idea of the present invention is to prevent loosening of the seam of a metal container due to falling or other abnormalities during handling and transportation, or loosening of the cap of the container by tightening, caulking, fitting, etc. The objective is to prevent the relative movement or separation of the constituent metal plates, for example, various conventionally known rolled-up cells, seam cross-sectional shapes (rectangular, oval, oval, etc.) or seam parts. This problem can be solved by newly forming an uneven part on the surface of the metal plate constituting the seam part or the cap part, completely apart from means such as pressing, and making the uneven parts match and fit. be. Normally, the seam of a metal container is seamed, but since the surface of the metal plate that makes up the seam is flat, collision with an object may cause the metal plate to move or separate relative to each other. There is a risk that the seam may become loose.

There is a method to prevent the winding from loosening by pressing the seam after winding, but if the pressure is applied too much, the metal plate that makes up the seam will work harden excessively and crack when it collides with an object, so the effect of pressing is not effective. has its limits. In the present invention, an uneven portion is formed on the surface of the metal plate constituting the seam portion. Therefore, not only when each metal plate makes contact between uneven parts at the seam part, but also when an uneven part and a flat part make contact, the resistance force against relative movement is increased by the uneven parts, and the resistance force against relative movement of the metal plate is increased. Relative movement, separation and thus loosening of the winding is prevented. The effect of preventing the winding from loosening due to the uneven portion is particularly important when the metal plates constituting the seam portion of a cylindrical container such as a drum are all in contact with a curved surface. It is extremely large when the concavo-convex portions correspond and fit together.

In addition, a press-fit flange is press-fitted into the mouth of the container, and the upper part of the flange is caulked to the mouth of the container, or is screwed together with the upper part of the mouth, but the surfaces of the mouth and the press-fit flange are Since it is flat, relative movement may occur due to collision with an object, etc., and the fitting between the mouthpiece and the mouthpiece press-fit flange, or the caulking or winding portion, may become loose, leading to the risk of leakage of contents. In the present invention, concave and convex portions are formed on the surfaces of the metal plate and the press-fit flange constituting the base, and the concave and convex portions correspond and fit together. For example, the mouthpiece of the drum is cylindrical, and the mouthpiece and the press-fit flange are in curved contact with each other. Therefore, the effect of the uneven portion of the present invention in preventing loosening of the fitting between the mouthpiece and the mouthpiece press-fit flange, the caulking portion, the rolled-up portion, etc. is similar to the effect of the seam portion.

The present invention will be explained below based on examples and drawings.

FIG. 1 shows an example of a cross section of a conventionally known seam portion. 1st
In the figure, 1 is the body plate, 2 is the top plate or the base plate, (a) the figure is a cross section of the seam part of the so-called double seam (5-layer winding), (b)
and (c) show a cross section of a so-called triple seam (seven layer winding) seam part, (b) is a circular spiral type seam part, and (c) is an example of an elliptical type seam part. Conventionally known seam portions are, for example, each metal plate forming the seam portion (for example, a metal plate forming each layer of a five-layer winding) in any of the figures (a), (b), and (c).
are rolled up in contact with each other on flat surfaces. In the diagonal drop strength test of drums, which has become particularly important in recent years, damage to the seam is caused by the first layer (outermost layer of the seam) on the outside (top plate or base plate side) and the seam being pressed against the body plate 1. The top plate or base plate 2 and the body plate 1 are connected to the seam part.
Local deformation of the material causes peeling and loosening of the winding. Especially in the case of double seams, if the falling height is large, the contents may leak. The peeling usually occurs from areas A and B shown in FIG. 1-(a). Therefore (a
) The part C shown in the figure is an important part for the seam part. Therefore, the seam part in the present invention includes all the seam parts mentioned above and the seam part described below, and the seam part including the part C in Fig. 1-(a). It is called. For example, the metal plate constituting the seam portion includes the C portion.

Also, in the internal pressure burst test, damage to the seam mainly occurs when the top plate or base plate 2 is stretched and deformed due to internal pressure, causing wrinkles, and due to the local deformation caused by the wrinkles, the metal plates that make up the seam peel off, and the winding loosens. occurs. This peeling occurs from the first layer on the outside of the seam (top plate or bottom plate side).

FIG. 2 shows an example of a cross section of the seam portion of the present invention. In FIG. 2, 1 is a body plate, 2 is a top plate or a base plate, 3 is an uneven portion formed on a metal plate constituting a seam portion, and 4 is a sealing agent filling portion. Fig. 2-(a) shows an example of the seam part of the double seam of the present invention, and shows each metal plate constituting the seam part (the part where the body plate 1 and the top plate (or base plate) 2 below the seam are in contact). (including the drum), except for the outer surface of the drum, are formed with concavo-convex portions 3, and the corresponding concavo-convex portions are fitted. Therefore, the deformation of the body plate 1 or the top plate (or base plate) 2, especially the body plate 1
Even if a large local deformation occurs such as a dent in the top plate (or bottom plate) or a convexity (or bulge) in the top plate (or base plate) 2, the relative movement or separation of each corresponding metal plate will be prevented by the fitting of the uneven parts 3. This prevents winding from loosening. The uneven portion 3 can be formed, for example, parallel to the circumferential direction of the cylindrical container, or can be formed at an arbitrary angle in the circumferential direction. The uneven portions formed at arbitrary angles have a strong resistance to peeling, and may have a great effect of preventing loosening of the winding.

The seam part of the present invention can be applied to various seam parts, and is not restricted by the cross-sectional shape of the seam part, the seam part configuration such as double seam or triple seam, etc. Second
Figures 2-(b) and 2-(c) show examples of application of the present invention to the seam portion of a triple seam and the seam portion of a six-layer seam, respectively. (Similar to the case in figure a.

Figure 3 is a supplementary explanatory diagram of the above matters related to Figure 2.
Figures -(a) and 3-(b) show a part of a metal plate constituting a seam part in which uneven parts are formed parallel to the circumferential direction, and the metal plate formed at an arbitrary angle in the circumferential direction. A portion of the board is shown.

No. 4-(a) and No. 4-(b) are a part of the seam part having the fitting of the uneven part of the present invention and a part of the conventional seam part, respectively;
Arrows indicate the direction of external forces. For example, A, B
The conventional seam part provides almost no force other than the bending resistance of the metal plate against the peeling of the two metal plates against the force acting in the C direction and the C direction. In addition, it is clear that because of the resistance of the concave and convex portions, there is effective resistance against relative movement or peeling of each metal plate, and there is a large resistance or prevention force against loosening of the winding.

In the present invention, the uneven portions of each metal plate constituting the seam portion can be formed by omitting a part thereof. FIG. 5 shows an example of a partially omitted concavo-convex portion and a seam portion having a fitting portion thereof. In FIG. 5, compared to the seam portion in FIG. 2, the portion where the uneven portion is omitted is actually a portion that is relatively difficult to peel off. The present invention is not limited to the range, area, number, etc. of the uneven portions.

FIG. 6 illustrates the shape of the uneven portion of the present invention, and (a)
, (b), (c), (d) and (e), they can have various shapes, and can also be formed with various threads, for example. Figure (e) shows a bird's-eye view of randomly formed uneven portions. Further, the depth of the uneven portion can be properly determined depending on the thickness of the metal plate and the characteristics of the metal plate, and the uneven portion in the present invention is not limited to the shape of the unevenness, the depth and height of the unevenness.

It is clear that even when one of the corresponding metal plates has an uneven portion and the other is flat, the resistance to relative movement is greater than when both are flat. Further, when the thickness of the corresponding metal plate is different, such as when the thickness of the top plate or the base plate is thicker than that of the body plate, the height and depth of the corresponding unevenness can be made different. Furthermore, even when the corresponding metal plates have the same thickness, the height and depth of the unevenness can be made different.

In these cases, the deeper recess remains a void even after the seam is rolled up or even after the seam is rolled up and pressed. In the present invention, the above-mentioned voids can be filled with a sealant, adhesive, or the like. Filling with such a sealant etc. can be carried out by means such as application or spraying before or during the seam rolling process, whether the corresponding unevenness is equal or different. It is possible to improve the sealing performance of

FIG. 7 illustrates various directional forms of the uneven portions formed on the surface of each metal plate constituting the seam portion. In Fig. 7, 3 indicates the uneven portion, and indicates the apex line of the convex portion or the center line of the convex portion, and α
is the angle formed by the tangents of 3 and 3. The uneven portion of the present invention is the seventh
- Parallel to the circumferential direction, or in a direction having an arbitrary angle α to the tangent, as shown in Figures (a), (b), and (c), for example, in the example of the top plate or bottom plate of a cylindrical container, or can be formed in a direction having an arbitrary angle β to the tangent in addition to a direction having an angle α. Furthermore, two or more various uneven portions can be formed in directions having arbitrary angles to two or more tangents. The angle with respect to the angle tangent can be formed in the range of 0 to 180 degrees, and each angle may be the same or different. For example, α and β may be the same or different. The uneven portions in the present invention can have various directional forms, and are not limited to the directional form of the unevenness.

FIG. 8 illustrates the mouthpiece of the container of the present invention.

In Fig. 8, 1 is a turning plate, 5 is a mouthpiece, 5-1, 5-2
, 5-3 are uneven parts formed on each part of the base part 5, 6 is a base press-fit flange, 6-1, 6-2, 6-3 are uneven parts formed on each part of the base press-fit flange 6, 7 is the gasket filling part. Each uneven portion 5-1, 5-2, 5-3, 6
The effects and functions of -1, 6-2, and 6-3 are the same as those explained for the seam part above, and they can prevent damage to the cap part, damage to the cap part, and damage to the cap part and the press-fit flange. It is extremely effective in preventing loosening of the fitting and leakage of contents from the mouthpiece.

FIG. 9 shows an example in which uneven portions are formed on the cap portion and the press-fit flange of the container of the present invention, and a sealant is filled and sealed between the corresponding uneven portions. In Figure 9, 4-1, 4-2,
4-3 is 5-1 and 6-1, 5-2 and 6-2, 5 respectively
-3 and 6-3 show the gaps in the fitting portion of the unevenness formed. Symbols not particularly explained are the same as in FIG. 8.

It is possible to fill the gaps 4-2 and 4-3 between the corresponding uneven parts formed on the cap part 5 and the cap press-fit flange 6 with a sealant, and when the contents of the container are not sweat-stained by the sealant. The gap 4-1 can also be filled with a sealant. The conditions and effects of the mouthpiece in which each gap is filled with a sealant, the sealant filling method, etc. are shown in FIG. The height and depth are the same as those described above.

Furthermore, if the void 4-1 is filled with a normal sealant, it may be left as a void if the sealant causes sweat staining of the contents of the container, or it can be filled with a sealant made of a material that does not cause sweat staining. Furthermore, it is possible to make the corresponding uneven portions equal so that no voids are created by press-fitting. Asbestos is usually used for the gasket 7 when there is a risk of perspiration staining the contents of the container, but asbestos gaskets not only have insufficient sealing properties but also have a short lifespan and are often dangerous. In the present invention, the gaps 4-2 and 4-3 can be filled with a sealant, and even if asbestos is used for the gasket 7, sufficient sealing performance can be ensured.

Next, a method and apparatus for forming an uneven portion on the surface of each metal plate constituting the seam portion and the base portion in the present invention will be described.

FIG. 10 is an explanatory diagram of the seam part in FIG. 2-(a) divided into various parts, and FIG. 10-(a) corresponds to FIG. 2-(a),
Fig. 10-(b) shows a comparison of each part of the body plate 1 and the top plate or base plate 2 before the seam part of Fig. 10-(a) is rolled up.

FIG. 11 is a schematic diagram showing an example of forming the cylindrical portion of the seam part of the body plate of a drum, that is, the uneven portion 1-1 or 1-4 in FIG. 10, before forming the body plate into a cylindrical shape. This is an example of forming uneven parts on a plate. In Fig. 11, 1 is the body plate, 3 is the molded uneven part 1-1 or 1-4 in Fig. 10.
8 is a hydraulic cylinder, 9 is a compression roll for rolling the uneven portion, and 10 is a support frame. By pressing the compression molding roll 9 onto the body plate 1 using the hydraulic cylinder 8 and pulling and moving the body plate 1 in the direction of the arrow, an uneven portion is formed on the surface of the body plate 1. The uneven portion 3 can also be formed by fixing the body plate 1 and moving the frame 10 in the opposite direction to the arrow.

FIG. 12 is a schematic view showing an example of forming an uneven portion on a flange after the flange is removed from the body plate.

In Fig. 12, 1 is a body plate, 1-1, 1-2, 1-3,
1-4 are uneven portions formed on the body plate shown in FIG. 10, and 11 and 11' are uneven portions 1-2 on the surface of the body plate flange.
, and 1-3, and 12 and 12' are hydraulic cylinders that actuate 11 and 11'. Said 11th
The uneven portion 1-1 is formed by the method and device explained in the figure.
and a body plate 1 formed into a cylindrical shape and having parts 1-4 formed therein.
After the flange is removed, one or both of the tools 11 and 11' press-form the uneven portions 1-2 and 1-3 on the flange portion of the body plate using the hydraulic cylinders 12 and 12'.

Further, the cylindrical body plate 1 can be flanged with the tool 11, and then the uneven portions 1-2 and 1-3 can be press-formed with the tool 11'.

FIG. 13 is a schematic diagram showing an example of forming uneven portions on the top plate after press molding, in which 2 indicates the top plate, 2-1, 2-2, and 2-
3 and 2-4 are the uneven parts of the flange part of the top plate, which correspond to the parts shown in Fig. 10, and 5-1 corresponds to 5-1 in Fig. 8, which are connected to the flange of the press-fit flange of the cap part. part,
5-3 is the rolled or caulked part with the press-fit flange of the cap, and the uneven portion of the cap corresponds to 5-3 in FIG. 8; 13 and 1;
3' is a tool for forming the upper and lower uneven parts, 14 is a hydraulic cylinder that operates the upper uneven part forming tool 13, 15 is a tool for forming the uneven parts 5-3 of the base, and 16 is a tool for making holes for the base in the top plate. , 17 is a presser and a mouthpiece forming tool for forming the uneven portion 5-3 of the mouthpiece, 18, 19 and 20 are a hole punching tool 16, a presser and mouthpiece forming tool 17, and a mouthpiece forming tool for the unevenness. 15 is a hydraulic cylinder for operation, and 21 is a scrap discharge port after drilling. The top plate 2 is placed on the lower uneven part forming tool 13', and the upper uneven part forming tool 13 is lowered by the hydraulic cylinder 14 to form the uneven parts 2-3, 2-4 on the top plate 2.
, 5-1 and 5-3.

At the same time as the molding, a drilling tool 16 is operated by a hydraulic cylinder 18 to punch a hole in the mouthpiece. FIG. 13 shows the stage of forming the uneven portion and drilling holes. Next, the hydraulic cylinders 19 and 20 are operated, and the presser/mouthpiece forming tool 17 and the mouthpiece unevenness forming tool 15 are lowered to form the mouthpiece. In the case of forming an uneven part on the base plate, the apparatuses 15, 16, 17, 18, 19 related to the base part in FIG.
, and 20 may be formed without operating them, or a tool for forming the upper and lower uneven portions may be used that is not provided with a device related to the mouthpiece.

Fig. 14 shows uneven parts 5-2 and 5-3 on the base part 5 of Fig. 8.
5 is a schematic diagram showing an example of molding, 5 is a mouth part, 5-2 and 5-3 are uneven parts of the mouth part, 22 and 22' are rolls for rolling the uneven parts, and 23 are rolling rolls 22, 22. The gap adjustment wedges 24 and 24' are the pressure forming rolls 22, 2
2' is a bearing box, 25 and 25' are hydraulic cylinders that press down the rolling rolls 22 and 22', 26 is a spline, 27 is a reduction gear, 28 is a drive motor, 2
9 is a joint with a bearing for rotating the spline 26; 30 is a hydraulic cylinder that raises and lowers the spline 26 and therefore the rolling rolls 22 and 22'; and 31 and 31' are support frames. The pressure-forming rolls 22 and 22' of the uneven part are lowered by the hydraulic cylinder 30 so as to sandwich the mouth part from the inside and outside, and the pressure-forming roll 22 is lowered by the hydraulic cylinder 25.
and 22' press the base part 5, and at the same time rotate around the base part 5 while rotating by the drive motor 28, reduction gear 27, and spline 26, and form the uneven part 5- on the base part 5.
2 and 5-3 are rolled and molded. The centers of the spline 26 and the hydraulic cylinder 30 coincide with the center of the inner diameter of the mouthpiece 5, and the outer diameters of the compaction rolls 22 and 22' coincide with the center of the inner diameter of the mouthpiece 5.
The outer diameter is determined appropriately depending on the inner diameter, thickness, and material of the material, and the outer diameter is not necessarily the same. In addition, when forming the uneven parts 5-2 and 5-3 by the apparatus and method shown in FIG. 14, the 13th
The uneven portions in FIG. 15 can be omitted. Furthermore, 1-1, 1-4, 2-1, 1-2, and 1- in FIG.
3, 2-2 and 2-3 and 2-4, 5-1 and 6 in Figure 8
-1, 6-2, 6-3, etc. uneven parts can be formed. Furthermore, in FIG. 14, it is possible to employ a device and a method of forming uneven portions in which the spline 26 is fixed without rotating and the base portion 5, that is, the rotating plate is rotated.

FIG. 15 shows an example of forming the uneven portion 2-1 of the top plate or the base plate using a device similar to the device shown in FIG. 14. In Figure 15, 2 is the top plate or base plate, and 2-1 is the first plate.
0 The uneven portion corresponding to 2-1 in Figure 0, 32 is the rolling pressure forming roll, 33 is the bearing box of the rolling rolling roll 32, 3
4 is a hydraulic cylinder that presses the rolling press roll 32 against the top plate, 35 is a holding tool, and 36 is a support frame. When the top plate or the bottom plate 2 is placed on the holding tool 35, the support frame 36 is lowered and rotated around the top plate or the bottom plate 2 using a device similar to the lifting and rotating devices 26, 27, 28, 29, and 30 shown in FIG. At the same time, the pressure forming roll 32 is pressed against the top plate or the base plate 2 by the hydraulic cylinder 34, so that the uneven portion 2-
One part can be molded.

FIG. 16 shows a side in which uneven portions 1-2 and 1-3 of the body plate are formed by a forming method using an apparatus similar to the apparatus and forming method shown in FIG. 14. In Figure 16, 1 is the body plate, 1-2 and 1
-3 is an uneven part of the body plate flange corresponding to 1-2 and 1-3 in Fig. 10, 37 and 37' are rolls for forming uneven parts, and 38 is a support similar to the support frame 31 in Fig. 14. The frame houses bearing boxes for rolling rolls 37 and 37' similar to those 24, 24', 23, 25, and 25' in FIG. 14, a wedge for adjusting the gap, and a hydraulic cylinder for rolling down. 39 and 40 are hydraulic pistons and hydraulic cylinders that push out and retract the support frame 38, respectively; 41 is a spline shaft (not shown);
, 29, and 30, it is equipped with a rotation reduction gear, a rotation drive motor, a joint with a built-in bearing, and a lifting hydraulic cylinder. The support frame 38 is lowered to the proper position by the lifting hydraulic cylinder, and the support frame 38 is retracted by the hydraulic cylinder 40 so that the compaction forming rolls 37 and 37' sandwich the body plate flange, and then the structure shown in FIG. Similarly, the pressure forming rolls 37 and 37' are rolled down by the hydraulic cylinder built in the support frame 38, and at the same time, the rotary drive motor on the upper part of the spline shaft 41 rotates the support frame 38, the pressure forming rolls 37 and 37' around the spline shaft. Rotate 37' to remove uneven parts 1-2 and 1-3.
can be molded. The center of the spline shaft 41 coincides with the center of the barrel.

10 by means of an apparatus and method similar to that shown in FIG.
The uneven parts 2-2, 2-3, and 2-4 of the top plate or base plate shown in the figure can be formed, and the base part and base press-fit flange 5-1 and 6-1 of FIG. 8 can be formed.

FIG. 17 shows another example of forming the uneven portion 2-1 of the top plate or the base plate. In Figure 17, 2 is the top plate or base plate, 2-
1 is an uneven portion of the top plate or base plate, 42 and 42' are rolls for rolling the uneven portion, 43 is a wedge for adjusting the gap between the rolling rolls 42 and 42', and 44 and 44' are rolling rolls 42 and 42 for rolling and rolling. 45 and 45' are hydraulic cylinders for lowering and opening the rolling rolls 42 and 42', 46 is a spline, 47 is a spacer, and 48 and 49 are support frames.

The spline 26 is the center of rotation, and the upper part thereof is
It is equipped with a rotation reduction gear, a rotation drive motor, a joint with a built-in bearing, and a lifting hydraulic cylinder similar to those of 7, 28, 29, and 30. The lifting hydraulic cylinder lowers the support frame 48 to the proper position so that the pressure forming rolls 42 and 42' sandwich the top plate, and when the pressure forming rolls 42 and 42' press the top plate using the hydraulic cylinders 45 and 45'. At the same time, the support frame 38 can be rotated by the rotary drive motor via a reduction gear and splines to form the uneven portion 2-1.

According to the device using the rolling pressure forming roll and the method for forming uneven parts described in FIGS. 14 to 17 above, after forming the top plate or the base plate, or after forming the body plate and further flanging, each uneven part is formed. All can be molded. 14 to 17 show an apparatus and method using a pair of pressure forming rolls or a pressure forming roll and a presser roll. In the present invention, these various types of equipment are installed in combination, and the body plate, top plate or Each uneven portion of the base plate can be formed simultaneously.

For example, it is possible to install the two types of equipment shown in Figures 16 and 17 so that they do not interfere with each other, and simultaneously operate two or more pairs of rolls to form uneven parts on the top plate, base plate, or body plate. I can do it. Furthermore, for the base of the top plate, for example, the 14th
By adding the combination equipment of the method shown in FIG.

FIG. 18 shows an example in which the two types of equipment shown in FIGS. 16 and 17 are integrated to form the uneven portions of the body plate. In Fig. 18, 1 is a body plate which is flanged, 1-1, 1-2, 1-3, 1-4 are uneven parts of the body plate;
50, 50', 51, 51' are uneven pressure forming rolls, 5
2 is a spline, which is the center axis of rotation, and on the left side of the spline 52 there is a reduction gear for rotation similar to 27, 28, 29, and 30 in Fig. 14, a motor for rotational drive, a joint with a built-in bearing, and hydraulic pressure for lifting as shown in Fig. 14. In place of the cylinder 30, a hydraulic cylinder for entry and exit is installed. Equipment without symbols is similar to the equipment shown in Figure 16 on the top and Figure 17 on the bottom, and is almost the same except that the vertical type is changed to the horizontal type, and the molding method is also almost the same, with vertical insertion and horizontal insertion. The only difference is By rolling down the rolling rolls 50, 50', 51, and 51', the uneven portions of the body plate can be rolled at the same time. Furthermore, the first
By installing the equipment shown in FIG. 8 symmetrically on both sides of the body plate 1, it is possible to roll-press the uneven portions on both sides of the top plate and the base plate of the body plate at the same time.

FIG. 19 shows an example in which the two types of equipment shown in FIG. 16 and FIG. 17 are installed together to form uneven portions of a top plate or a base plate. In Fig. 19, 2 is the top plate or the bottom plate, 2-1,
2-2, 2-3, 2-4 are uneven parts of the top plate or base plate, 53
and 53' are compression molding rolls, 54 is a spline with a central axis of rotation, and above the spline 54 there are 27 and 2 in FIG.
A rotary reduction gear similar to No. 8, 29, and 30, a rotary drive motor, a joint with a built-in bearing, and a hydraulic cylinder for lifting and lowering are installed. The equipment without symbols is similar to the equipment shown in FIG. 16 on the left and in FIG. 17 on the right, and the molding method is almost the same. By rolling down each rolling roll, the uneven portions of the top plate or the base plate can be rolled at the same time.

FIG. 20 shows an example in which the equipment of the systems shown in FIGS. 14 and 16 is integrated to form a concavo-convex portion on the base portion 5 of a rolling plate. In Fig. 20, 2 is the top plate, 5 is the base, 5-1,
5-2, 5-3 are uneven portions of the mouthpiece 5, 55, 55' and 56 are rollers for forming uneven portions, 56' are presser rolls,
7 is a bearing box for the rolling pressure forming roll 56, 58 is a hydraulic cylinder for rolling down the rolling rolling roll 56, 59 is a support frame containing a bearing box for the presser roll 56', 60 is a hydraulic cylinder for rolling down the pressing roll, 6
Reference numeral 1 denotes a rotary drive motor that rotates the rolling pressure forming roll 56 when the roll is taken in and out from the opening of the mouthpiece, 62 is a spline and a central axis of rotation, and the upper part of the spline 62 is provided with 27, 28, 29, 30 shown in FIG. It has a built-in rotary reduction gear similar to the above, a rotary drive motor, a joint with a built-in bearing, and a hydraulic cylinder for lifting and lowering. 63 is a support frame. The equipment on the right without a symbol is completely similar to the equipment explained in FIG. 14, and the molding method is also similar. In the equipment on the left side of FIG. 20, the support frame 63 is lowered to the proper position by the lifting hydraulic cylinder on the upper part of the spline 62, and the compaction forming roll is lowered at a position opposite to the position shown in FIG. 20 (on the right side). 56 as rotation drive motor 6
1 to the position shown in FIG.
and 55', and at the same time, the rotation drive motor on the upper part of the spline 62 rotates the support frame 63 via the reduction gear and the spline 62 to reduce the uneven portions 5-1, 5-.
2, 5-3 can be rolled-press molded. Furthermore, the equipment and molding method shown in Fig. 20 can be incorporated and installed so as not to interfere with the equipment shown in Fig. 19 above, and the uneven parts of the mouthpiece can be rolled-pressed at the same time as the uneven parts of the top plate are rolled-pressed. I can do it.

In the equipment shown in FIGS. 14 to 20, it has been explained that rolling pressure forming is carried out by rotating each roll, but these machines are equipped with a separate device for rotating the rolling plate, the base plate, or the body plate, so that the material to be formed can be rotated. It is possible to perform rolling pressure forming by rotating the support frame of each roll and fixing the support frame of each roll. Further, the hydraulic cylinder, drive motor, etc. can be replaced with various other known devices having the same function as appropriate.

Further, the rolling press rolls 37, 37', 51, 51', 53, 53 shown in FIGS. 16, 18, 19, and 20
'56, presser roll 56', etc. are conical rolls each having a surface shape that fits the part to be formed.

As explained above, uneven portions can be formed on the surfaces of the metal plates of each layer constituting the seam portion for the top plate or the base plate after the blank pressing process, and for the body plate after the body forming and flange removal. The top plate or the base plate can be formed by using an apparatus and method similar to those shown in FIG. The irregularities can be formed in predetermined positions before or after blanking by an apparatus and method similar to that shown on the left side of FIG. Since some of the uneven portions formed before the top plate or the base plate are press-formed will be damaged by press forming, it is desirable that the uneven portions be formed after the top plate or the base plate is press-formed. FIG. 11 shows an example in which uneven parts 1-1 and 1-4 are formed on the body plate before flange forming. The uneven portions 1-2 and 1-3 can also be formed by an apparatus and method similar to that shown in FIG. 11, provided that some damage to the uneven portions is allowed during flange forming.

FIG. 12 shows an example in which the uneven portions 1-2 and 1-3 are formed during or after the flange forming of the body plate.

In the present invention, when the seam part is rolled up, in order to fit the corresponding uneven parts, the shape of the uneven parts should be changed as shown in Fig. 6-(a).
As shown in Figures (b), (c), and (e), it is preferable that the upper part of the convex part has a triangular protruding shape in the cross section, and the apex part of the convex part is formed as small as possible. In this case, for example, it is unstable and difficult to keep the vertices of corresponding triangles in a corresponding state, and when an external force is applied from both bases, both triangles easily move along the side narrowing the apex due to external disturbance. and slip. Therefore, the concavo-convex portion having a triangularly protruding cross section formed on the surface of the metal plate constituting the seam portion can be easily fitted during rolling. Furthermore, if the positions of the uneven portions are precisely formed, the uneven portions having the shape as shown in FIG. 6-(d) can also be fitted during winding. Furthermore, if the seam portion is pressed after being rolled up, the fit between the concave and convex portions will be further strengthened, and the sealing performance and strength of the seam portion will be further improved.

Usually, a sealing compound is sealed and filled in the seam of a metal can as a sealant. In the present invention, as shown in 4 in Fig. 2, the center of the seam portion can be filled with sealing compound, but in particular, the sealing compound can be filled into the concave portion of the uneven portion formed on the metal plate constituting the seam portion before rolling or If sealing compound is filled and rolled up during winding, the corresponding concave and convex portions will fit together during winding, and a portion of the sealing compound will be pushed into the 4 parts shown in Figure 2 above due to the pressure at the time of winding and fitting. Although it is shut out, some of it remains near the concave part of the uneven part. Therefore, a strong and extremely excellent sealing property is formed without leaving any gaps communicating with the outside between the metal plates of each layer constituting the seam portion. In principle, it is sufficient to leave the sealant only in the concave portions of the uneven portions, and therefore, extremely effective sealing performance can be achieved with a much smaller amount of sealant than in the normal case. Furthermore, in the present invention, if the seam portion is properly pressed after being rolled up and the concavo-convex portions are sufficiently fitted, sufficient sealing performance can be formed even if filling with the sealant is omitted.

Similarly, the uneven portions 5-1 and 5 shown in FIG. 9 are also formed on the cap portion.
- If the recesses such as 2, 5-3, 6-1, 6-2, and 6-3 are filled with a sealant or sealant, extremely effective sealing performance can be achieved with a very small amount of sealant or sealant. You can. Also, as explained in FIG. 9 above,
If there is a risk of perspiration staining the contents of the container when using ordinary sealants, sealing compounds, or rubber gaskets, use a gasket that does not pose such a risk, such as an asbestos gasket, and place the container against the gasket. A sealant, a sealing compound, or a sealing material can be sealed and filled into the contents and the uneven portion on the reflective side (outside) to improve sealing performance without the risk of sweat staining. Furthermore, if an uneven portion is provided on the mouthpiece of the container corresponding to the gasket inserted between the mouthpiece of the container and the mouthpiece press-fit flange, the sealing effect of the gasket can be further improved.

In the present invention, various sealing agents, sealants, adhesives, etc. are applied between the corresponding uneven parts of the metal plates constituting the seam part or the base part, or the sealing property between the metal plates constituting the seam part and the base part, Means and materials for enhancing adhesion can be applied, and different sealants, sealants, adhesives, etc. can be applied to different parts of each of the uneven parts.

As explained above, the metal container having a seam part and a cap part, and its manufacturing method and apparatus according to the present invention can prevent the container from falling or other abnormalities during handling and transportation, such as loosening of the seam part, It has strength that is extremely effective in preventing leakage of contents, and it also has extremely effective sealing properties.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an example of a cross section of a conventionally known seam part, FIG. 2 and subsequent figures are drawings related to the present invention, FIG. 2 is a diagram showing an example of a cross section of a seam part of the present invention, and FIG. 4 is an explanatory diagram showing the direction of the uneven portion, FIG. 4 is an explanatory diagram of the peeling resistance force due to the uneven portion, FIG. 5 is a diagram showing an example of application of the uneven portion to the seam portion, and FIG. 6 is an example of the application form of the uneven portion. 7 is an example of the direction of the uneven portion, FIG. 8 is a diagram showing an example of the mouthpiece of the present invention, FIG. 9 is an explanatory diagram when filling the unevenness of the mouthpiece with a sealant, and FIG. 1
Figure 0 is an explanatory diagram of each uneven part of the seam part, Figure 11 is a diagram showing an example of molding the uneven part of the cylindrical part of the body plate, Figure 12 is a diagram showing an example of molding the uneven part of the body plate flange part, and Figure 13 14 is a diagram showing an example of molding the uneven portion of the top plate, FIG. 15 is a diagram showing an example of molding the uneven portion of the top plate or base plate, and FIG. 16 is a diagram showing an example of molding the uneven portion of the top plate. 17 is a diagram showing an example of forming the uneven portion of the body plate flange portion, FIG. 17 is a diagram showing an example of forming the uneven portion of the top plate or the base plate, and FIG. 18 is a diagram showing an example of simultaneously forming the uneven portion of the body plate.
FIG. 19 is a diagram showing an example of simultaneous molding of the concave and convex portions of the top plate or the base plate, and FIG. 20 is a diagram showing an example of simultaneous molding of the concave and convex portions of the base. 1: Body plate 1-1, 1-2, 1-3, 1-4: Uneven part of body plate 2: Top plate or base plate 2-1, 2-2, 2-3, 2-4: Top plate or Irregularities on the base plate 3: Irregularities 4: Sealing agent filling portion 5: Base portions 5-1, 5-2, 5-3: Irregularities on the base plate 6: Mouth press-fit flanges 6-1, 6-2, 6- 3: Uneven part of press-fit flange 7: Gasket 8: Hydraulic cylinder 9: Uneven part Roll 10: Support frame 11, 11': Uneven part forming tool 12, 12': Hydraulic cylinder 13, 13': Uneven part Forming tool 14: Hydraulic cylinder 15: Uneven part forming tool 16: Drilling tool 17: Holder and mouth part forming tool 18: Hydraulic cylinder 19, 20: Hydraulic cylinder 21: Scrap outlet 22, 22': Uneven part rolling pressure molding Roll 23: Gap adjustment wedge 24, 24': Bearing box 25, 25': Hydraulic cylinder 26: Spline 27: Reduction gear 28: Drive motor 29: Rotation bearing built-in joint 30: Hydraulic cylinder 31, 31': Support frame 32: Roll for compaction 33: Bearing box 34: Hydraulic cylinder 35: Holding tool 36: Support frame 37, 37': Concave/convex compact roll 38: Support frame 39: Hydraulic piston 40: Hydraulic cylinder 41: Splines 42, 42 ': Concave and convex portion rolling pressure forming roll 43: Gap adjustment wedges 44, 44': Bearing box 45, 45': Hydraulic cylinder 46: Spline 47: Spacer 48, 49: Support frame 50, 50', 51, 51': Uneven part rolling pressure forming roll 5
2: Splines 53, 53': Rolls for compaction forming uneven parts 54: Splines 55, 55', 56: Rolls for rolling compaction for uneven parts 56': Presser roll 57: Bearing box 58: Hydraulic cylinder 59: Support frame 60: Hydraulic pressure Cylinder 61: Drive motor 62: Spline 63: Support frame.

Claims (1)

[Scope of Claims] 1. In a metal container, one or more uneven portions are formed on part or all of the surface of a metal plate constituting the seam portion of the container, and the uneven portions and flat portions of the metal plate correspond to each other. 1. A metal container characterized by having a seam portion formed by matching and fitting an uneven portion or an uneven portion. 2. Claim 1 is characterized by having a seam portion formed by filling a sealing agent into a concave portion of one or more uneven portions formed on a part or all of a metal plate constituting the seam portion. metal container. 3. In a metal container, one or more uneven portions are formed on part or all of the surfaces of the metal plate and the press-fit flange of the container, and each of the uneven portions corresponds and fits together. A metal container characterized by having a mouthpiece formed therein. 4 In claim 3, the sealant is formed by filling the recesses of one or more uneven parts formed on a part or all of the surfaces of the metal plate and the press-fit flange constituting the cap part. A metal container characterized by having a mouthpiece. 5. In the manufacturing of metal containers, in the process of blanking and pressing the top plate and base plate, or in the process before and after blanking and pressing, the part that constitutes the seam of the top plate and base plate and the part that constitutes the mouthpiece of the top plate are separated. Forming one or more uneven parts on either or both of the parts, and forming a single uneven part on the part constituting the seam part of the shell plate in the process of forming the flange of the shell plate with a flanging machine, or in the process before and after the flange forming. or forming a plurality of uneven portions.By forming one or more of the uneven portions, any one of the seam constituent parts of the top plate, the base plate, and the body plate, and the base part constituent parts of the top plate. A metal container characterized in that, after forming an uneven part on one or more of the constituent parts, one or more of a seam part of a top plate, a seam part of a base plate, and a base flange press-fit are formed. manufacturing method.