JP5572130B2 - Modified open drum can manufacturing equipment - Google Patents

Description

  The present invention relates to a modified open drum can manufacturing apparatus for manufacturing a modified open drum can by processing a closed drum.

  There are roughly two types of drums currently in use. One is a closed drum 10 mainly used for a low viscosity liquid. As shown in FIG. 4, the top plate portion 10a and the body portion 10b of the closed type drum can 10 are wound together by overlapping the peripheral portion of the top plate portion 10a and the upper end portion of the body portion 10b and tightening them outward. 12 is connected. The contents are taken in and out through an inlet 14 provided in the top plate portion 10a. Further, the top plate portion 10a is provided with an intake port 16 for easily taking in and out the contents.

  The other is an open drum that is used mainly for high-viscosity liquids, paints, solids, powders, and the like. A general open type drum can fixes a top plate part (canopy) and a body part with a ring-shaped band. And a top plate part (canopy) can be removed from a body part by loosening this ring-shaped band. For this reason, in the open-type drum can, all the upper end sides of the trunk portion are opened.

  Then, using the technique described in, for example, [Patent Document 1] below, the top plate portion 10a of the closed drum can be cut together with the tightening portion 12, and the end portion on the cut side of the body portion 10b is curled outward. Thus, it has been conventionally practiced to reuse a closed drum as an open drum. In the following, an open type drum can manufactured by processing a closed type drum can will be referred to as a modified open drum can.

Japanese Utility Model Publication No. 50-107557

  However, since the closed-type drum can before processing and the regular open-type drum can have almost the same height, they were manufactured by a conventional method of cutting the winding portion 12 and curling the cut side of the body portion 10b. The modified open drum can has a height dimension that is 10 mm to 15 mm lower than a regular open drum. When a modified open drum can and a regular open-type drum can with different height dimensions are used in a mixed manner, for example, when they are stacked in a vertical direction on a pallet, etc., the stability is not good, and the content is different. Various problems arise.

  The present invention has been made in view of the above circumstances, and it is possible to manufacture a modified open drum can almost the same height as a regular open drum can by unrolling the winding and extending the height of the body portion. An object of the present invention is to provide a modified open drum can manufacturing apparatus.

The present invention
(1) Unwinding and extending the winding portion 12 between the top plate portion 10a and the body portion 10b of the closed drum 10 to extend the height of the body portion 10b and release the connection with the top plate portion 10a. In this way, in a modified open drum can manufacturing apparatus that can manufacture a modified open drum can whose height dimension is substantially the same as a regular open drum can ,
The rotating part 30 for rotating the closed drum 10 and the rotating action of the closed drum 10 are transmitted to rotate, and the top plate is installed with an angle formed with respect to the body part 10b in the range of 5 ° to 15 °. A cylindrical winding portion 32 that unwinds and extends the winding portion 12 between the portion 10a and the body portion 10b, and a pressing portion 34 that presses the winding portion 32 toward the winding portion 12 along the height direction of the body portion 10b. And comprising
The winding part 32 is partially brought into contact with the lower part of the winding fastening part 12, and the pressing part 34 winds the winding part 32 and the body part 10b while the rotating part 30 rotates the closed drum 10 . By pressing in a state that does not enter the gap with the tightening portion 12, the winding tightening portion 12 is unrolled, the height of the body portion 10b is extended, and the coupling with the top plate portion 10a is released. by providing a modified granulation open drum can manufacturing apparatus 50 shall be the, to solve the above problems.
(2) a placement unit 24 for placing the closed drum 10,
A rotating roller 27 provided with a guide portion 27a that is radially installed in the mounting portion 24 and that guides the closed drum 10 at a position where the central axis of the closed drum 10 and the rotation axis of the rotating portion 30 substantially coincide with each other;
An elevating unit 26 that raises the mounting unit 24 together with the rotating roller 27 and presses the top plate unit 10a of the closed drum 10 against the rotating body 22 rotated by the rotating unit 30;
A moving part 36 for moving the winding part 32 together with the pressing part 34 and bringing the winding part 32 into contact with the body part 10b of the closed drum 10;
The above-mentioned problem is solved by providing the modified open drum can manufacturing apparatus 50 according to the above (1), further comprising:

  According to the present invention, the height dimension of the body portion can be extended by unwinding and extending the winding portion. As a result, it is possible to manufacture a modified open drum can whose height dimension is almost the same as a regular open drum can.

It is a schematic block diagram which shows the modified open drum can manufacturing apparatus which concerns on this invention. It is a figure explaining the winding upper part of the remodeling open drum can manufacturing device concerning the present invention. It is a figure explaining the unfolding operation | movement of the remodeling open drum can manufacturing apparatus which concerns on this invention. It is a figure explaining the winding fastening part of a closed drum.

  A modified open drum manufacturing apparatus according to the present invention will be described with reference to the drawings. The modified open drum can manufacturing apparatus 50 according to the present invention shown in FIG. 1 unrolls and extends the rotating unit 30 that rotates the closed drum 10 and the winding portion 12 of the top plate 10a and the body 10b of the closed drum 10. A winding part 32 and a pressing part 34 that presses the winding part 32 are provided.

  The rotating unit 30 raises and lowers the rotating motor 20, the rotating body 22 that transmits the rotating operation of the rotating motor 20 to the closed drum 10, the mounting unit 24 that mounts the closed drum 10, and the mounting unit 24. And an elevating part 26. Further, the mounting portion 24 has four rotating rollers 27 provided with guide portions 27a in a radial pattern.

  In addition, since said rotation part 30 is a suitable example of the modified open drum can manufacturing apparatus 50 which concerns on this invention, the structure of the rotation part 30 is not limited to this. For example, the rotary motor 20 may be provided on the lower side (base plate side) of the closed type drum can 10 to transmit the rotation operation from the base plate side, or the rotary motor 20 may be provided on the side surface of the closed type drum can 10 and rotated from the body part 10b side. The operation may be transmitted. Further, instead of the elevating part 26, the top plate part 10a may be pressed from above, or the closed drum 10 may be sandwiched and held from the side surface direction. Further, instead of the rotating roller 27, a rotating plate provided with a guide portion 27a may be used.

In the arrangement is rotated along the winding portion 32 without rotating the closed-type drums 10 to the seamed portion 12, is configured to rotate for apparatus size becomes large, this example indicates to the Closed-type drums 10 good Good.

The upper part 32 constituting the modified open drum can manufacturing apparatus 50 is a metal roller that freely rotates, and rotates when the rotation of the closed drum 10 is transmitted. Further, as shown in FIG. 2A, the winding part 32 is installed so as to be inclined so that an angle formed with the body part 10b becomes a predetermined angle θ. When the angle θ is, for example, 0 °, there is a problem in the transmission of the rotation operation of the closed drum 10, and the winding unit 32 cannot rotate smoothly. In addition, if the angle θ is too large, the angle θ ′ in FIG. 2 is increased, and the possibility that the winding part 32 is detached from the winding tightening part 12 is increased. Therefore, the angle θ of the winding upper 32 and the body portion 10b and 5 ° to 15 °. FIG. 2B is a reference example of a substantially frustoconical winding part having a wide bottom surface . Further , it is preferable that the contact portion of the winding part 32 with the body part 10b, that is, the peripheral part of the bottom surface of the winding part 32 is rounded or chamfered so as not to cause unnecessary damage to the body part 10b. Moreover, there is no limitation in particular in the installation number of the winding part 32, You may provide two, three, four, five, or more than that radially. However, since the scale of the apparatus becomes large, it is particularly preferable that the number of winding units 32 be one.

  The pressing portion 34 presses the winding upper portion 32 toward the winding fastening portion 12 (upward in FIG. 1) along the direction in which the winding fastening portion 12 is unrolled, that is, the height direction of the body portion 10b. As the pressing portion 34, a known hydraulic mechanism or the like can be used. The pressing unit 34 is provided with a moving unit 36 that moves the winding part 32 and the pressing unit 34 in the direction of the closed drum 10. The moving part 36 can also use a known hydraulic mechanism or the like. In addition, since said press part 34 and the moving part 36 are suitable examples of the modified open drum can manufacturing apparatus 50 which concerns on this invention, these are not limited to said structure.

  Next, the operation of the modified open drum can manufacturing apparatus 50 according to the present invention will be described. First, the closed drum 10 is placed in a predetermined position of the modified open drum manufacturing apparatus 50. The mounting direction of the closed drum 10 is such that the top plate portion 10a is up. The placement work of the closed-type drum can 10 may be performed by an operator, or the modified open drum can manufacturing apparatus 50 may be provided with a drum can carry-in device and automatically loaded.

  Next, the elevating part 26 operates to raise the placing part 24 together with the rotating roller 27. Thereby, the guide part 27a of the rotating roller 27 installed in the mounting part 24 guides the closed drum 10 to an appropriate position. The proper position is a position where the central axis of the closed drum 10 and the rotation axis of the rotating unit 30 substantially coincide with each other. When the mounting portion 24 is further raised, the top plate portion 10 a of the closed drum 10 is pressed against the rotating body 22 of the rotating portion 30.

  Before and after the operation of the elevating unit 26, the rotary motor 20 rotates at a predetermined rotation speed of, for example, about 60 rpm to 80 rpm. This rotating operation is transmitted to the closed drum 10 via the rotating body 22, whereby the closed drum 10 rotates. In addition, since the rotation roller 27 of the mounting portion 24 freely rotates, the rotation of the closed drum 10 is not hindered.

  Next, the moving part 36 operates to move the winding part 32 together with the pressing part 34 in a direction approaching the closed drum 10. And if the winding part 32 contact | abuts to the trunk | drum 10b, the moving part 36 will maintain this state. At this time, the winding part 32 is rotated by the rotation of the closed drum 10 being transmitted.

Next, the pressing part 34 operates to move the winding part 32 to the winding part 12 side along the height direction of the body part 10b. As a result, the winding upper part 32 comes into contact with the lower part of the winding fastening part 12 as shown in FIG. Next, the pressing part 34 further presses the winding upper part 32 toward the winding fastening part 12 with a force of about 30 kgf to 80 kgf. The upper part 32 presses the lower part of the winding part 12 upward by this pressing operation, that is, the direction in which the winding part 12 is unrolled. Incidentally, since the winding portion 32 as described above is circular cylinder, the pressing portion of the seaming section 12 by wrapping section 32 is partial. However, since the closed drum 10 is rotating, the place where the winding upper portion 32 presses the winding fastening portion 12 always moves. As a result, the winding part 12 is gradually unrolled along the winding part 12 as shown in FIG. 3 (a), and finally unwound as shown in FIG. 3 (b). The closed-type drum can 10 in which all of the tightening portions 12 are unrolled is hereinafter referred to as a processed closed-type drum can. The height of the body portion 10b of the treated closed drum can be extended by about 4 cm to 5 cm (the height of the entire drum can is about 2 cm to 3 cm) as the wound portion 12 is unwound. Moreover, the coupling | bonding of the top-plate part 10a and the trunk | drum 10b is also cancelled | released simultaneously by unwinding all the winding parts 12. FIG.

  When all of the winding tightening portion 12 is unwound and stretched, the pressing portion 34 moves down the winding upper portion 32. Further, before and after this, the moving part 36 moves the winding part 32 and the pressing part 34 in a direction away from the closed drum 10. Next, the rotating motor 20 of the rotating unit 30 stops. Before and after this, the elevating part 26 moves the closed drum 10 together with the placing part 24 downward. Then, when the rotation of the processed closed drum can stops, the processed closed drum can is taken out from the modified open drum can manufacturing apparatus 50. Thereby, the unwinding of the winding part 12 of the closed drum 10 and the release of the connection between the top plate part 10a and the body part 10b by the modified open drum can manufacturing apparatus 50 are completed. The removal operation of the processed closed-type drum can may be performed by an operator, or the modified open drum can manufacturing apparatus 50 may be provided with a drum can carry-out device and automatically removed.

  In the processed closed drum can thus manufactured, the top plate portion 10a is removed in the next step. As described above, since the top plate portion 10a and the body portion 10b of the processed closed-type drum can already be released by unrolling the winding fastening portion 12, the removal of the top plate portion 10a is a simple operation. It can be done easily. In addition, you may install the removal mechanism of the top-plate part 10a in the remodeling open drum can manufacturing apparatus 50. FIG. As an example of the top plate removing mechanism, for example, the rotating body 22 is provided with some top plate holding mechanism such as an electromagnet, an inlet 14, and an inlet 16, and a lifting unit 26 lowers the processed closed drum can. The top plate holding mechanism holds the top plate portion 10a so that the top plate portion 10a can be removed.

  The processed closed-type drum can from which the top plate portion 10a has been removed is remodeled so that the unrolled portion by a known device is curled outward by a predetermined length, and the height is almost the same as a regular open-type drum can It becomes an open drum. It should be noted that the top plate removing mechanism and the curl mechanism described above are installed in the modified open drum can manufacturing apparatus 50 so that the winding portion 12 can be unwound, the top plate portion 10a can be removed, and the curl can be continuously performed with a single device. Anyway.

  As described above, according to the modified open drum can manufacturing apparatus 50 according to the present invention, the body portion 10b can be extended by unwinding and extending the winding portion 12 that joins the top plate portion 10a and the body portion 10b. it can. Then, by curling the unrolled portion for a predetermined length, it is possible to manufacture a modified open drum can whose height is substantially the same as that of a regular open drum. Since the modified open drum can manufactured in this way is equivalent in height to a regular open drum can, it can be handled in the same manner as a regular open drum can. For this reason, even if both are loaded together, stability is not impaired, and a difference in internal capacity does not occur. Furthermore, various devices suitable for regular open drums can be used without any problem.

  Moreover, the remodeled open drum can manufacturing apparatus 50 according to the present invention releases the coupling between the top plate portion 10a and the body portion 10b by unwinding and extending the winding portion 12, and separates the two. Therefore, the top plate portion 10a can be removed without performing dangerous work such as cutting.

  As described above, the configuration, shape, operation, mechanism, procedure, etc. of each part of the modified open drum can manufacturing apparatus 50 according to the present invention are not particularly limited to the above examples, and the present invention is not limited to the gist of the present invention. Modifications can be made without departing from the scope.

10 Closed drum
10a Top plate
10b trunk
12 Winding part
30 Rotating part
32 upper part
34 Pressing part
50 Modified open drum can manufacturing equipment

Claims (2)

Extending the height dimension of the body part by unwinding and stretching the winding part of the top plate part and the body part of the closed drum can, and releasing the connection with the top plate part,
As a result, in a modified open drum can manufacturing apparatus that can manufacture a modified open drum can whose height dimension is approximately the same as a regular open drum can ,
A rotating part for rotating the closed drum,
Cylindrical shape that is rotated by transmitting the rotating motion of the closed drum, and is installed at an angle of 5 ° to 15 ° with respect to the body, and unwinds and stretches the winding part between the top plate and the body The upper part of
A pressing portion that presses the winding upper portion toward the winding tightening portion along the height direction of the body portion,
The winding part is brought into contact with the lower part of the tightening part, and the pressing part enters the winding part into the gap between the body part and the tightening part while the rotating part rotates the closed drum. The modified open drum can manufacturing apparatus characterized by unwinding and unrolling the tightening portion by pressing in the absence of the state, extending the height of the body portion, and releasing the connection with the top plate portion. A placement section for placing a closed drum,
A rotating roller provided with a guide unit that is radially installed in the mounting unit and that guides the closed drum in a position where the central axis of the closed drum and the rotation axis of the rotating unit substantially coincide with each other;
A lifting part that raises the mounting part together with the rotating roller and presses the top plate part of the closed drum can against a rotating body that is rotated by the rotating part;
A moving part that moves the winding part together with the pressing part, and abuts the winding part on the body part of the closed drum,
The modified open drum can manufacturing apparatus according to claim 1 , further comprising:

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