JPS6032537B2 - Sealing device for manufacturing metal plate containers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seaming device for manufacturing containers made of metal plates, which is advantageously used when joining metal plates to each other in a container manufactured using a plurality of metal plates by seaming. In particular, the present invention relates to an improvement in the supporting manner of a mold for seaming.

1 to 3 are perspective views showing examples of containers advantageously manufactured by the apparatus of the present invention.

Figure 1 shows the inner box of a vending machine for soft drinks, etc.
It is composed of a side plate 11 having a U-shaped cross section with two side surfaces, a husband plate 12, and a bottom plate 13. Fig. 2 shows an inner box 2 of a refrigerated showcase equipped with a gate on the front, and is composed of a main plate 21 having a part of the front wall, a bottom wall and a rear wall, and side plates 22 and 23 forming both side walls. ing. FIG. 3 shows an inner box 3 of a refrigeration showcase equipped with a gate on its upper surface,
It is composed of a side plate 31 having four side walls and a bottom plate 32. In manufacturing the inner boxes 1, 2, 3 as described above, the plates must be joined together.

For this purpose, projecting portions 4 are formed at corner portions where the plates intersect with each other. FIG. 4 shows an enlarged view of a conventional joint.

As shown here, the plates are superimposed on each other at the overhang 4 and joined in this state by spot welding. Generally, the inner box 1, 2, 3 as shown in FIGS. 1-3 needs to be painted.

However, using spot welding, inner boxes 1, 2, 3
If manufactured, each board must be unpainted. Then, after the spot welding is completed and the desired shape is formed, painting will be applied. However, since the inner boxes 1, 2, and 3 shown in FIGS. 1 to 3 are usually large in size, the painting process and transportation are time-consuming and very inefficient. For this purpose, using pre-painted metal plates, the inner boxes 1, 2,
It is desired to produce 3. FIGS. 5 to 7 are enlarged views for explaining the seaming process as a method that can advantageously be manufactured using a painted metal plate.

5 to 7 show portions corresponding to those shown in FIG. 4 described above. This will be explained with reference to FIGS. 5 to 7 in association with the constituent elements of the inner box 1 shown in FIG. 1. A side plate 11 serving as a first metal plate constituting a first wall surface of the container, and a second metal plate constituting a second wall surface intersecting the first wall surface.
The top plate 12 as a metal plate is arranged as shown in FIG. 5 and positioned as shown in FIG.

In this state shown in FIG. 6, the mutually joined edges of the side plate 11 and the husband plate 12 are overlapped with each other. and,
This edge portion includes a first overhang portion 41 that overhangs in the direction in which the husband plate 12 extends, and a second overhang portion 42 that overhangs in the direction in which the side plate 11 extends from the loose end of the first overhang portion 41. include. Then, the second projecting portion 42 is tightened, and the side plate 11 and the husband plate 12 are tightened.
By winding the respective edge parts together, the seaming part 4
3 is formed. In this way, the side plate 11 and the husband plate 12
are joined to each other, and the bottom plate 12 is similarly seamed to form the inner box 11 shown in FIG. 1. Unlike spot welding, this method does not require a complicated painting process because it can use a pre-painted metal plate. Similarly, it will be understood that the inner boxes 2 and 3 in FIGS. 2 and 3 can also be manufactured by seaming. In addition, as shown by the imaginary line in FIG.
Even if the projecting portion 42a is formed and the seaming is performed, a similar joint portion can be realized. Therefore, the main object of the present invention is to provide a seaming device for manufacturing metal plate containers that can efficiently seam even large containers such as those described above. In summary, the present invention provides two molds each supporting a pair of molds prepared for performing fastening.
A pair of supporting members is arranged on the outside of the second wall surface (for example, the surface defined by the husband plate 12), and the mold on the side opposite to the side where the supporting member of the part to be seamed is arranged is This tightening device is supported via a connecting member that extends so as to avoid the overhanging portion to be tightened, and has an element that directly acts on tightening in the vicinity of the overhanging portion to be tightened.

In this sense, it should be pointed out that the shapes of the joints shown in FIGS. 5 to 7 have been chosen in such a way that the device according to the invention can be used advantageously. Other objects and features of the present invention will become clearer from the detailed description given below with reference to the drawings. FIG.

Referring to FIG. 8, the general configuration of this device will first be described. First and second work yards 51, 52 and a manufacturing yard 53 are arranged in connection with the container manufacturing apparatus 10. Further, the container manufacturing apparatus 100 includes a first
It has a work set position 101, a second work set position 102, a moving direction switching position 103, and a seaming position 104. The mounting base 105 is provided with first and second mounting bases 105 and 106 for mounting workpieces that are sequentially moved between these positions.
, 106 is a first workpiece moving motor 107 in the x direction.
and in the y direction by the second workpiece movement motor 108. Sealing position 104
A workpiece W (a part of which is shown) is brought to
) is a pair of seaming mold 110 and presser mold 111.
(Only a part of which is shown in the figure.) Sealing and tightening is performed. The seaming mold 110 is supported by a seaming support plate 112, and the presser mold 111 is supported by a presser support plate 113 via a connecting member 114. The tightening cylinder 115 is fixed to the presser support plate 113, and its plunger 16 is fixed to the tightening support plate 112. In this way,
The seaming mold 110 is driven by the seaming cylinder 115.
The presser die 111 is brought close to the workpiece W, and the workpiece W is tightened. The presser support plate 113 includes a portion that is screwed into a male threaded portion formed on the outer peripheral surface of the adjustment rod 120, and by rotating the adjustment rod 120 by driving the x-direction adjustment motor 121, the presser support plate 113, Also, a connecting member 114, a presser mold 111, and a seaming cylinder 1 held directly or indirectly therein.
15, plunger 16, support plate 112 for seaming
The winding die 110 and the like are integrally displaced in the x direction, thereby adjusting the positions of these elements in the x direction. This is to match the length of the workpiece W in the x direction. The presser mold 111 is a presser cylinder 117
It is configured such that it can be entered and exited by the user, and is configured to allow the workpiece W to pass therethrough. The connection member 114 is provided on the presser support plate 113 so as to be movable in the y direction, and is driven by the y direction adjustment motor 122. This adjustment is for adapting to the dimension of the workpiece W in the y direction. Note that the seaming mold 110 is also configured to move in conjunction with this movement in the y direction. In the above configuration, the general operation and operation will be explained.

Works to be seamed are sequentially carried into the first and second yards 51 and 52, and products that have been seamed are sequentially carried out from the product yard 53. and,
In FIG. 8, arrows shown with chain lines indicate the movements of the worker, and arrows shown with broken lines indicate the movements of the workpiece. First, the operator transports the work from the first work yard 51 to the first work set position 101 (arrow wl), and sets the work on the first mount 105 located at the first work set position 101. At this time, the worker is moving in the direction indicated by the arrow ml. Next, the worker moves in the direction indicated by the arrow m2 and operates the start button 109.

Accordingly, the first mounting base 105 and the second mounting base 106
simultaneously move to the right while maintaining their mutual positional relationship. Therefore, the workpiece set on the first mount 105 moves in the direction shown by the arrow w2 and reaches the transfer direction switching position 103. At the same time, the second mounting base 1
06 reaches the second work set position 102. Next, the first mounting base 105 in the switching position 103 moves to the seaming position 104, and the workpiece is also moved in the direction indicated by the arrow w3.
Move in the direction shown.

In this tightening position 104, the x-direction adjustment motor 121 and the y-direction adjustment motor 122 operate to perform proper positioning, and the presser cylinder 117
After making sure that the presser die 111 does not become an obstacle to the passage of the workpiece W by the operation of Apply tightening. The tightened workpiece is moved in the direction shown by arrow w4 and reaches the transfer direction switching position 103 again. During the seaming process described above, the operator moves in the direction shown by arrow m3 and removes the seaming work that has already been set on the second mounting base 106 brought to the second workpiece set position 102. The processed workpiece is taken out, and while moving in the direction shown by arrow m4, the finished workpiece is transported in the direction shown by arrow w6 and brought to the product yard 53.

Then, the operator moves in the direction indicated by arrow m5, takes out the workpiece from the second workyard 52, and places it on the second mounting stand 106 located at the second workpiece set position 102.
Next, set the workpiece to be seamed. When the above-mentioned workpiece setting is completed, the initial position 10
The first mounting base 105 located at position 3 and the second mounting base 106 located at the second work set position 102 both move to the left, and the workpiece set on the first mounting base 105, which has already been tightened, is moved to the left. The workpiece moves in the direction shown by the arrow w5 to the first workpiece set position 101, and at the same time, the second mount 106 moves to the transfer direction switching position 103.

Then, the workpiece set on the first mounting base 105 is replaced with a workpiece that has not been seamed according to the procedure already described, and the workpiece set on the second mounting base 106 is then moved to the seaming position 104. reach. By repeating the above-described operations or operations, containers as products are obtained one after another.Next, with reference to FIGS. 9 to 14, a more detailed explanation of the container manufacturing apparatus 100 described above will be given. 9 is a plan view, FIG. 10 is a front view, and FIG. 11 is a sectional view taken along the line phantom-red in FIG. 9.

The description of the container manufacturing apparatus 100 shown here is based on the inner box 1 of FIG. 1, which describes the seaming process with reference to FIGS.
This is done when manufacturing. This container manufacturing device 10
0 roughly includes a work transfer device and a seaming device,
The seaming device includes a mold, a press device, and a position adjustment device. First, the work transfer device, which also includes this container manufacturing device 100, will be explained.

The work transfer device moves to each position 101 shown in FIG.
, 102, 103, 104.
and a second mount 106. Mounting stand 105, 106
guides 130, 131 and groove 13 along the movement path of
2,133 are provided extending in a T-shape. Each of the mounts 105 and 106 includes a mount body 134, a slide base 135 that holds the mount body on its upper surface, and a moving rod 13 that is attached to the lower surface of the slide base 135.
6. Connecting part 1 attached to the lower end of the moving rod 136
Contains 37. The slide base 135 is connected to the guide 130,1
31 to be movable, and at this time, the moving rod 136 moves along the grooves 132 and 133. Such movement of the mounting base 105 or 106 is caused by the connection part 1
This is achieved by applying force to 37. This force must then be applied in the x direction when guided by guide 130 and groove 132, and in the y direction when guided by guide 131 and groove 133. Therefore, the first workpiece moving motor 107 acts to apply a force in the x direction via the chain 138, and the second workpiece moving motor 107 acts to apply a force in the x direction.
08 acts to apply a force in the y direction via chain 139. From the chains 138, 139 to the mounting base 105
The transmission mechanism leading to the connecting portion 137 of 106 will be explained with reference to FIG. FIG. 12 is a perspective view of a preferred embodiment of a transmission mechanism for moving the mount.

The x-direction hook (shown in imaginary line) 140 shown here is
It is attached to a chain 138 and moves in the x direction. Further, the y-direction hook 141 is attached to the chain 139 and moves in the y-direction. Both hooks 140,
141 are formed into a substantially C-shaped cross section and are arranged in directions perpendicular to each other. A vertical engagement part 142 that forms a pair of engagement with the x-direction hook 140 is attached to the side surface of the connecting part 137 facing the x direction, and forms a pair of engagement with the y-direction hook 141.
The directional engaging portion 143 is attached to the side surface of the connecting portion 137 facing in the y direction. Both engaging portions 142 and 143 have a substantially T-shaped cross section. The operation will be explained below with reference to FIG. Now, as shown in FIG. 12, it is assumed that the x-direction hook 140 engages with the x-direction engaging portion 142 and the connecting portion 137, that is, the mounting base 105 or 106, moves in the x-direction.

When the y-direction engaging portion 143 engages the y-direction hook 141 on this x-direction movement path, the connecting portion 137
will be stopped. This stopping position is the mounting base 105 or 10.
6 is in the transfer direction switching position 103 (FIG. 8). In this state, this time the y direction hook 141
When is moved in the y direction, the x direction engaging portion 142 is disengaged from the x direction hook 140, and the connecting portion l37, that is, the mounting base 105 or 106 moves in the y direction.
Conversely, when the connecting portion 137 is returned to the above-mentioned stop position by the y-direction hook 141, the x-direction engaging portion 142 enters the x-direction hook 140 that was waiting there, and the x-direction hook It will be moved in the x direction from 140'. In this way, the mount 105 or 106 is switched between movement in the x direction guided by the guide 130 and groove 132 and movement in the y direction guided by the guide 131 and groove 133.

Note that, as explained with reference to FIG. 8, there are 2
Since the two mounts 105 and 106 are moved at the same time, two hooks 14 in the x direction in FIG. Become. Referring again to FIGS. 9 to 11, a mounting block 144 is provided to be held by the mounting base body 134 of the mounting bases 105, 106.

This mounting block 144 is for mounting a workpiece, for example, the inner box 1 (FIG. 1) before or after seaming. This mounting block 144 must be in close contact with the seaming portion of the workpiece as much as possible when the workpiece is seamed to be described later. However, on the other hand, in the case of a workpiece that requires seaming on at least three sides on at least one side, such as the inner box 1 shown in FIG. If this is selected, it will be difficult to attach or remove the workpiece. For this purpose, the mounting block 14
4 is desirably configured so that its dimensions can be tightened at least in a certain direction. It is also desirable that the mounting block 144 be configured to absorb some degree of dimensional error in the workpiece. An example of a mounting block 144 that can meet such requirements is shown in FIG. FIG. 13 is a perspective view of a portion of a preferred embodiment of the mounting block.

In this figure, the inner box 1 of FIG. 1 is illustrated as a workpiece by an imaginary line. This mounting block 144 is the mounting base 1
It includes a first slide plate 145 that is fixedly provided on the slide base 135 of 05 or 106.
To explain how this first slide plate 145 is connected to the configuration shown in FIG.
As shown in FIG. 11, a slide base 135 is fixed onto the moving rod 136 shown in FIG. 2, and the mount main body 134 is held thereon. The upper surface of this mount main body 134 contacts the downwardly facing inner surface of the inner box 1 as a workpiece, thereby positioning the inner box 1 in the vertical direction. and,
A first slide plate 145 is attached to extend from a relatively lower portion of the mount body 134 on both sides in the x direction. Note that the x direction and y direction in FIG. 13 correspond to the x direction and y direction in FIG. 12, respectively. The first slide plate 145 includes a first dovetail 146 extending in the x direction on its upper surface. 1st slide plate 1
A second slide plate 147 is held on the upper surface of the slide plate 45 . On the upper surface of the second slide plate 147, there are two y
direction slide presser blocks 148, 149 are held;
A trapezoidal x-direction sliding presser block 150 is interposed between the two presser blocks 148 and 149. Note that the second slide plate disposed on the first slide plate 145
Two sets of elements from the slide plate 147 to the x-direction slide presser block 150 are provided symmetrically to each other, but only one of them is illustrated, and illustration of the other is omitted. Regarding the relationship between each component, the lower surface of the second slide plate 147 also has a first dovetail groove 15 extending in the direction.
1 is provided, and this dovetail groove 161 is iron-fitted to the first dovetail 146. The second slide plate 147 is movable on the first slide plate 145 in the x direction. Next, a second dovetail 152 extending in the y direction is provided on the upper surface of the second slide plate 147. A second dovetail 152 is provided on the lower surface of the y-direction slide presser blocks 148 and 149.
A second dovetail groove '53 (the dovetail groove of the presser block 149 is not shown) is provided, and the y-direction sliding presser blocks 148 and 149 slide in the y-direction with respect to the second slide plate 147. It is possible. In this state, when the x-direction slide presser block 150 is displaced in the x-direction, the two y-direction slide presser blocks 148
, 149 can be changed. That is, the 13th
In the state shown in the figure, each presser block 148, 149, 1
50 is in close contact with the inner surface of the seaming portion of the inner box 1, and has an advantageous effect on the seaming process described later. However, if the x-direction sliding presser block 150 is displaced toward the front in the x-direction in the figure, Y-direction slide presser block 148714
9 is shortened, which is advantageous for attaching and detaching the inner box 1 as a workpiece. Further, a portion including the illustrated second stay plate 147 and a portion not illustrated that is symmetrical thereto can slide with respect to the first slide plate 145. In the state shown in FIG. 13, the presser blocks 148, 149, 150 held by the illustrated second slide plate 147 are located on the husband plate 12 side of the inner box 1, and the other presser block (not shown) is located inside the inner box 1. It is adjusted by its movement so that it is located on the side of the bottom plate 13 (FIG. 1) of the box 1. This means that the side plate 11 in FIG.
Even if the dimension in the height direction of the side plate 11 is changed variously, or even if the dimensional error in the height direction of the side plate 11 is relatively large as in the case of such a large inner box 1, it can be properly adjusted accordingly. This means that it can be dealt with. The mounting block 144 as shown in FIG. 13 has various advantages as mentioned above, but if such advantages are not desired, a simple box-shaped one may be used. good.

In addition, there are cases where the mounting block 144 does not need to be brought into close contact with the entire seamed part of the inner box 1 as a workpiece, and in such a case, the mounting block 144 may be simply divided so as to be attached in both the x and y directions. The mounting block 144 may be configured so that the dimensions can be changed in the direction as well, and the mounting block 144 may be brought into close contact with at least only the corner portion of the seaming portion. Next, the configuration related to the seaming device will be described.

As described above, this seaming device includes a mold section, a press device section, and a position adjustment device section. FIG. 14 is a perspective view showing the main parts of the seaming device.

The structure related to the mold portion will be explained with reference to FIG. 14 and FIGS. 9 to 11. The molds necessary for performing seaming are a seaming mold 110 and a presser mold 111, which are paired with each other as shown in FIG. This pair of seaming mold 110 and presser mold 111 is used to seam a workpiece such as the inner box 1 shown in FIG. 1 on three sides, so in order to simultaneously perform the seaming, ,
It turns out that 3 pairs are required. That is, the seaming mold 1
10, upper side seaming mold 110a, right side seaming mold 11
0b and a left side winding and tightening mold 110c. Further, the presser die 111 also includes an upper presser die 111a and a right presser die 1.
11b and a left presser mold 111c. Also, the first
In the case of a workpiece like inner box 1 in the figure, it is necessary to perform seaming on the husband plate 12 side and the bottom plate 13 side, so in order to do this at the same time, Although a mold is required, since their construction is the same, the following description will be made for only one side. The three seaming molds 110a, 110b, and 110c are arranged in a U-shape and supported on a seaming support plate 112.

A bottom guide 154 is arranged parallel to the upper seaming die 110a, and is also supported on the seaming support plate 112. Of these, the upper seaming die 110a and the bottom guide 154 are fixedly provided on the seaming support plate 112. On the other hand, the right side seaming die 1 10b and the left side seaming die 110c are provided slidably in the y direction,
In this sliding movement, the guide grooves 15 and 156 are
It is realized in a state where it is fitted with a 7,158. A presser support plate 113 is arranged parallel to the seam-tightening support plate 112.

This presser support plate 113 has three connecting members 1
14a, 1 14b, and 1 14c are supported, and among these, the upper connecting member 114a is fixedly provided on the presser support plate 113. The right connecting portion village 114b and the left connecting member 114c are provided so as to be slidable in the y direction on the presser support plate 113, and are therefore located in dovetail grooves 167 extending in the y direction on the presser support plate 113.
are slidably fitted together. The sliding movement of the right and left connecting members 114b, 114c
, 114c are controlled by the rotation of both screws 159 that are screwed together in series. Both screws 159 are provided with male screw portions having mutually different directions, and rotation in one direction moves the connecting members 114b, 114c toward each other, and rotation in the other direction moves them away from each other. The rotation of both screws 159 is controlled by the y-direction adjustment motor 122 (9th
(Figure). The upper connecting member 114a is provided so as to extend beyond the upper end surface of the support plate 112 for tightening and towards the front side of the support plate 112 for tightening as shown in FIG.

In addition, the right and left connecting members 114b and 114c are connected to through holes 160b and 160b provided in the support plate 112 for tightening, respectively.
160c of the first support plate 112 for tightening.
It is provided so as to extend toward the front side as shown in Figure 4. Upper presser molds 111a, 11-lb, and 111c are respectively locked to the distal ends of the connecting members 114a, 114b, and 114c. These presser molds 111a, 111b, 1
11c are connecting members 114a, 114b, 114, respectively.
c, and this movement in and out is driven by presser cylinders 117a, 117b, and 117c, respectively. The aforementioned right and left side seaming molds 110
b and 110c are the right and left continuous parts 114, respectively.
b, 114c in the y direction.

For this purpose, a dovetail groove 161 is formed in the seaming molds 110b and 110c, and a dovetail groove 161 is formed to fit into this dovetail groove 161.
62 is provided on the connecting members 114b and 114c. Note that these dovetail grooves 161 and 162 are slidable,
The seaming mold 110a,
110b, 110c and presser molds 111a, 111b, 1
11c, which allows for a tightening operation. The tightening cylinder 115 is fixed to the presser support plate 113, and its plunger 116 passes through the presser support plate 113, and its end is fixed to the presser support plate 112.

Therefore, by driving the seaming cylinder 115, the presser support plate 113 and the seaming support plate 112
move closer to each other or move away from each other. Accordingly,
Connection members 114a, 114 are attached to the presser support plate 113.
Presser die 1 1 supported via b, 114c
1a, 1 1 1b, 1 1 1c, and the seaming molds 110a, 1 supported by the seaming support plate 112.
It will be appreciated that 10b, 110c may be moved toward or away from each other. Accordingly, the workpiece is tightened. As best shown in FIGS. 9-11, three adjustment rods 120 extend in the x direction.
will be distributed.

This adjustment rod 120 constitutes a double screw thread in which male screw portions having mutually different directions are formed at each end. These three adjustment rods 120 are simultaneously rotated by an x-direction adjustment motor 121. The adjustment rod 12 only passes through the tightening support plate 112 and does not apply any mechanical restraining force, but the adjustment rod In the stone top, lower right, and upper left portions in FIG. 11, the male screw portions having mutually different directions that constitute both screws are screwed together. Therefore, by rotating the adjustment rod 120 in one direction, the left presser foot support plate 113 and the right presser foot support plate 1 shown in FIGS.
13 approaches each other and adjusts. They are separated from each other by rotation of the pad 120 in the other direction. The respective operations of this presser support plate 113 are performed by the seaming cylinder 115 and the connecting member 114 that are substantially held therein.
a, 114b, 114c, support plate 112 for seaming
, the seaming dies 110a, 110b, 110c, and the holding dies 111a, 111b, 111c, etc., in the same direction. A through hole 120a is provided in the lower left portion of the support plate 112 for seaming shown in FIG.
is shown, but the adjustment rod is not located here. This is to allow the mounting base 105 or 106 to pass through. Note that the presser support plates 113 are not close to each other.
x-direction adjustment motor 12 for driving the separating motion
1 and the adjusting rod 12. Alternatively, for example, a hydraulic cylinder can be used.

In this case, the piston rod of the hydraulic cylinder may be made to act directly on the presser support plate 113.
This method using a hydraulic cylinder has the advantage that there is no fluctuation due to the gap between the threads of the adjusting rod 120, and there are fewer failures. Furthermore, since the pressure source used for the seaming cylinder 115 can also be used, it is advantageous in terms of cost. In the above-described configuration, the overall operation of the container manufacturing apparatus 100 will be described below. First, the inner box 1 shown in FIG. 1 is assumed as a workpiece.

Therefore, a mounting block 144 suitable for the inner box 1 as the workpiece is prepared and mounted on the first mounting base 105 and the second mounting base 106.

Then, the container 1 before being tightened is attached to this mounting block 144.
is installed. At this time, each dimension adjustment described with reference to FIG. 13 is performed manually or automatically as necessary. Next, the y-direction adjustment motor 122 is driven so as to realize the distance between the right side seaming die 110b and the left side seaming die 110c that is suitable for the inner box 1 as the workpiece, and the right side connecting member 114b is The distance between the connecting member 114c and the left connecting member 114c is adjusted manually or automatically. Once such preliminary adjustment is completed, the workpieces are sequentially brought to the seaming position 104 by operating according to the procedure described with reference to FIG. When the workpiece is brought to the seaming position 104 as described above, the x-direction adjustment motor 121 is driven, and the left and right presser support plates 11
3 and each element substantially held thereto come close to each other.

In addition, at this time, the presser molds 111a, 111b, 111c
are the overhanging parts 41 and 42 (of the inner box 1 as the workpiece), respectively.
It is in a retracted state to allow passengers to pass through (Fig. 6). Then, when passing through the overhanging parts 41 and 42,
The presser cylinders 1 17a, 1 17b, and 1 17c operate to project the presser molds 111a, 111b, and 111c. At this time, the presser molds 111a, 111b
, 111c support the corner portion between the side plate 11 of the inner box 1 and the first projecting portion 41. At the same time, the x-direction adjustment motor 121 is controlled to stop, and the second projecting portion 42 of the inner box 1
The tips of the molds are brought into close proximity to the seaming molds 110a, 110b, and 110c. Then, the seaming cylinder 115 is driven, and the seaming molds 110a, 110b, 1
10c approaches the presser dies 111a, 111b, and 111c, and seaming portions 43 as shown in FIG. 7 are formed on the husband plate 12 side and the bottom plate 13 side of the inner box 1, respectively. Next, the presser cylinders 117a, 117b, 117c are driven to retract the presser molds 111a, 111b, 111c, allowing them to pass through the seaming portion 43 described above.

Then, the x-direction adjustment motor 121 is driven to rotate the adjustment rod 120 in the opposite direction, thereby separating the left and right presser support plates 113 and the elements substantially held therein from each other. The sealed inner box 1 is then transferred from the sealed position 104 to the transfer direction switching position 103, and the subsequent operations have been described with reference to FIG. 8, so a description thereof will be omitted. The seaming device of the container manufacturing apparatus 100 described above is designed to simultaneously seam three sides of the container.

Therefore, the present invention is applicable not only to the inner box 1 shown in FIG. 1 but also to a work such as the inner box 2 shown in FIG. 2, for example. However, in the case of a workpiece that needs to be seamed on all four sides, such as the inner box 3 in FIG. 3, the seaming cannot be performed all at once using this container manufacturing apparatus 100. For this purpose, pairs of spooling dies and presser dies must be provided on the top, bottom, left and right. This will be described below with reference to FIG. FIG. 15 is a layout diagram of a mold when seaming is performed on four sides.

In FIG. 15, a pair of spooling dies and presser dies are shown by one block. This block includes an upper block 201, a lower flock 202, and a right block 20.
3 and a left block 204. The arrangement of each of the blocks 201, 202, 203, and 204 is selected so that one end surface of each is supported on the inner surface of the other block adjacent to it, and the supported portion of the bracket is slidable. It is said that the structure is By doing the above, it is possible to change the shape and dimensions of the rectangle formed inside, for example, as shown by the imaginary line, regardless of the dimensions of the four-sided seamed part, which is advantageous. can be adapted.

As described above, the present invention has been described with reference to several embodiments.

However, it should be noted that the scope of the present invention is not limited to these examples, but is limited only by the scope of the claims set forth above.
For example, the seaming device described in the embodiment was capable of simultaneously seaming three or four sides;
It is not limited to this.

In other words, it must be understood that the scope of the present invention also includes a device that only has the function of seaming only one side. In this case, for example, in order to perform seaming on three sides, the process may be performed in three steps. In addition, like the inner box 1 in Fig. 1, the husband plate 12 side and the bottom plate 1
Even when it is necessary to tighten the seams on the third side, there is no limitation to simultaneously tightening the seams on both sides. This is because in this case as well, the process can be divided into two steps and the seaming and tightening can be performed on each side. Also,
By changing the shapes of the tightening mold and the pressing mold, it is possible to manufacture not only prismatic containers but also cylindrical containers. At this time, if one of the pair of molds, for example, the presser mold, is divided in the direction between the two, the circular seaming portions can be processed at the same time. In addition, for a workpiece having the shape of an overhang as shown by the imaginary line in Fig. 6, it is possible to reverse the arrangement of the pair of spooling dies and presser dies described above. good. Furthermore, in the embodiment shown in FIGS. 8 to 14, one cylinder 15 drives three seaming molds 110a, 110b, and 110c via a seaming support plate i12. However, a cylinder may be provided for each seaming die.

As described above, according to the present invention, containers can be manufactured using already painted metal plates, so there is no need for a complicated painting process, and especially for large containers, Since the transportation process for the coating process can be omitted, the efficiency of manufacturing the coating container can be improved.

In addition, mechanical elements such as a seaming die, a presser die, members supporting these, and the like that directly contribute to seaming are all arranged on the side where the workpiece is to be seamed. Therefore, since mechanical elements that directly contribute to seaming do not extend over the entire length of the work, workpieces of various sizes can be easily seamed. This is particularly advantageous for high-mix, low-volume production and large-sized workpieces.

[Brief explanation of the drawing]

1 to 3 are perspective views showing examples of containers advantageously manufactured by the apparatus of the present invention. FIG. 4 shows an enlarged view of a conventional joint. FIGS. 5 to 7 are enlarged views for explaining the seaming process as a method that can advantageously be manufactured using a painted metal plate. 8 to 14 are diagrams for explaining a metal plate container manufacturing apparatus including a seaming device according to an embodiment of the present invention,
Fig. 8 is a schematic layout diagram, Fig. 9 is a plan view, Fig. 10 is a front view, Fig. 11 is an end view along the line illusion-illusion of Fig. 9, and Fig. 12 is a plan view.
The figure is a perspective view showing a preferred embodiment of the transmission mechanism for moving the mounting base, Figure 13 is a perspective view showing a part of the preferred embodiment of the mounting block, and Figure 14 is a perspective view showing the main parts of the seaming device. FIG. FIG. 15 is a diagram for explaining another embodiment of the present invention, and is a layout diagram of a mold when seaming is performed on four sides. In the figure, 110, 110a,
110b, 110c are seaming molds, 111, 111a,
111b, 111c are presser molds, 112 is a support plate for seaming, 113 is a support plate for presser, 114, 11
4a, 114b, 114c are connection parts, 115 is a tightening cylinder, 116 is a plunger, 117, 117a,
117b and 117c are presser cylinders; 1, 2, and 3 are inner boxes; 11, 23, and 31 are side plates; 12 is a top plate;
2 is the bottom plate, 21 is the main plate, 41' is the first overhang, 42, 4
2a is a second projecting portion, 43 is a seaming portion, and W is a workpiece. Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6 Fig. 7 Fig. 15 Fig. 8 Fig. 12 Fig. 9 Fig. 13 Fig. 〇 Ship chart Ship Fig. 14

Claims (1)

[Claims] 1. A first metal plate 11 that constitutes a first wall surface of the container, and a second metal plate 12 that constitutes a second wall surface that intersects with the first wall surface.
The container is manufactured by joining mutual corner portions of the first metal plate 11 and the second metal plate 12, and the end edges of the first metal plate 11 and the second metal plate 12 to be joined are overlapped with each other, and The edge portion overlapped with the first overhang portion 41 extends in the direction in which the second wall surface extends, and the second overhang portion extends from the edge of the first overhang portion 41 in the direction in which the first wall surface extends. (42 or 42a).
) is tightened 43 to connect the first metal plate 11 and the second metal plate 11.
A device for applying the seaming 43 in manufacturing a container manufactured by joining metal plates 12 to each other, and a pair of seaming molds 110 for performing the process of forming the seaming 43. 110a, 110b or 110c and a presser die 111; 111a, 111b or 111c, the seaming die 110; 110a, 110b or 110c is pressed from the tip edge of the second projecting portion 42 or 42a to The presser mold 111 is arranged to perform seaming 43 on the second projecting portion 42 or 42a;
111a, 111b or 111c is the first projecting portion 4
1, and is arranged so as to come into contact with and act on one surface of the second projecting portion 42 or 42a facing in the direction opposite to the projecting direction of the second projecting portion 42 or 42a;
10b or 110c is supported by a seaming support plate 112 disposed outside the second wall surface made of the second metal plate 12, and the presser mold 111;
11a, 111b, or 111c extends from the presser support plate 113, which is disposed at a position sandwiching the seaming support plate 112 between the second wall surface and the first projecting portion 4.
114a, 114b, or 114 extending so as to avoid the first and second overhang portions 42 or 42a;
c, in the direction in which the second wall surface extends, and in the direction in which the second wall surface extends.
It is supported in a movable state in a direction intersecting the first wall surface made of a metal plate 11, and further, the winding support plate 112 and the presser plate 113 are brought close to each other, whereby the winding Clamping mold 110; 110
a, 110b or 110c and the presser die 111; 1
11a, 111b or 111c in close proximity to each other; and the presser mold 1.
11; 111a, 111b or 111c is moved relative to the connecting member 114; 114a, 114b or 114c, and the first projecting portion 41 and the second projecting portion are moved relative to the presser mold 111; 111a, 111b or 111c. 42 or 42a, and a state in which the first overhanging portion 41 and the second overhanging portion 42 or 42a are engaged to perform seaming work.
17a, 117b or 117c, a seaming device for manufacturing a metal plate container.