JPS5882812A - Method and device for packing hollow cylindrical body - 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 a method and apparatus for packaging hollow cylinders in a series of automatic operations.

In particular, the present invention automatically handles heavy and bulky cylindrical materials such as coiled steel plates, including the inner periphery (cylindrical hole),
The present invention relates to a method and apparatus for automatically packaging in a state where both the outer periphery and the end surface are completely sealed.

Conventionally, packaging of items such as coiled steel sheets, which have a large weight and are extremely bulky, has not been fully automated. In particular, to prevent the coil steel plate from rusting during transportation, the outer periphery must be carefully cleaned.
Although both the inner periphery and both end surfaces must be tightly sealed, it has not been possible to completely automate the packaging of these parts without requiring human labor. Therefore, no matter how much the production of steel sheets increased, the packaging process, which is the last step, became a bottleneck, causing serious drawbacks such as shipping delays.

The present invention has been made in view of the above circumstances, and is a method for sealing and packaging a heavy hollow cylindrical article such as a coiled steel plate, including its inner circumference, outer circumference, and both ends, in an automated integrated process. The present invention seeks to provide methods and apparatus.

First, the entire apparatus of the present invention will be briefly described with reference to the drawings. In FIGS. 1 and 2, a conveying path 1 is provided through the entire apparatus. As shown schematically in Fig. 1, this conveyance path can be carried out by a method in which the plywood is intermittently pulled by a chain conveyor or the like, or by a method in which the plywood is received by swinging arms 1a and lb which are swung between two positions by a gurwan ring or the like. Possible options include those with plates 1c and ld attached. In any case, the conveyance path 1 must be capable of intermittently conveying heavy articles such as coiled steel plates C between the respective work stations 7 described below without rolling them.

The coiled steel plate C is first received into the loading section 2 of the apparatus by appropriate means, and is positioned on the conveyance path 1 as described above. The main parts of the entire device are a core paper supply section 3.5 a paper insertion section 4, a front body wrapping section 5, a taping section 6, an edge folding section 7, a delivery section 8,
and a peripheral packaging material supply section 9.

The structure of each of these working sections or work stations will be explained in detail, and the method of the present invention will also be outlined.

First, the core paper supply unit 3 is a supply/source of five papers to be pasted onto the inner circumference of the hollow part (cylindrical hole) of a coil steel plate (hereinafter abbreviated as coil C), and the five paper base paper supply roll 10 is conveyed. Road 1
is placed next to. 5. The width W of the paper is selected to be approximately equal to the inner peripheral length of the cylindrical hole of the coil C. If the inner periphery is to be wound in double or triple layers, a base paper roll of width W must be prepared accordingly. However, since it is usually sufficient to wrap a relatively thick packaging material in a single layer and butt or overlap the ends, the width W may be approximately equal to the inner circumferential length of the coil C.

From the supply roll 10, five sheets of paper 13 having a predetermined length t are fed out by a control device as appropriate, and are cut by a cutting device 12. This length t is approximately equal to the length and depth of the cylindrical hole, and is long enough to cover the cylindrical hole from end to end.

15 is an adhesive tape supply source, and the cut paper 13
An adhesive tape that can be pasted only in half lengthwise, as shown in 16 in FIG. 2, is supplied to one side edge of the container. The remaining vertical half of the tape leaves the sticky side exposed. The core paper supply section 3 feeds the five sheets 13 (with chie f16) into the next five sheets insertion section 4.
(not shown).

The paper insertion section 4 is provided with an actuating means 18 on a cart 17 that can move forward and backward at right angles to the conveyance path 1, and a sliding drum 19 is attached to the front end of the actuating means 18. The insertion drum 19 is normally cylindrical, but when the cutting paper 13 with the chises 7' 16 is supplied, a part of the cylindrical surface is depressed along the cylinder generatrix, as shown in FIG. 3(A). Fold 5 pieces of paper 13 into the shape. The exposed adhesive surface of the chi 7''16 is made to not stick to other parts.In this state, the insertion drum 19 is moved to the corresponding position on the conveyance path 1 (
When the coil C is inserted into the cylindrical hole (shown by the chain line in FIG. One side edge 13a marked with is also brought into contact with the inner periphery.

In this manner, five pieces of paper 13 are fixed to the inner periphery of the coil C by pasting tapes 16 on both side edges 13a and b, as shown in FIG. 3(B).

Next, the coil C is located at the center of the front body part 5 (dashed line in Figure 2).
be carried to. Here, the outer wrapping material (longer than the length of the coil C, see Fig. 7) is fed out from the supply section 9 at the top.
is wrapped around the surface of the coil. The torso wrapping section 5 is composed of a torso wrapping belt mechanism 2o' installed oppositely across the conveyance path 1, and a support mechanism 40 that lifts, supports, and rotates the coil C from the conveying surface for the torso wrapping action. The body wrapping part 5 of the present invention is characterized by lifting the coil C for the body wrapping action, and wrapping the wrapping material while rotating the outer periphery of the coil without rubbing against other objects, so that the wrapped packaging material is heavy. The purpose is to prevent damage caused by friction between the packaged item and the object that makes up the package.

To explain with reference to FIG. 4.5, the support mechanism 40 includes a frame 42 that stands upright on a truck 41 that can move toward and away from the conveyance path 1, and a chuck 44 that is connected to a vertical operating body 43 provided at the top of the frame 42. It is horizontally supported by a frame 42. The chuck 44 usually has a smaller diameter than the cylindrical hole of the coil C, but after being inserted into the cylindrical hole, the chuck 44 can expand in diameter and come into close contact with the cylindrical hole.

The outer surface of the chuck 44 is preferably coated with a friction material. After aligning the chuck 44 with the cylindrical hole using the operating cylinder 43, the carriage 41 is moved forward and the chuck 44 is inserted into the coil cylindrical hole. The truck 41 is movable in the direction of arrow 45 in FIG. After inserting into the cylindrical hole, the operating cylinder 43
FIG. 5 shows a state in which the chuck 44 (and coil C) is lifted up. In this state, the rear end 47 of the chuck is rotated by the rotary drive means 48, and the coil C is rotated without rubbing its outer periphery against other objects.

Prior to this rotation, the waist belt mechanism 20
From the position shown in Fig. 4, where the coil C is placed on the opposite side of the
The coil becomes closed (FIG. 5) and comes into elastic contact with the outer periphery of the coil. As will be described later, the belt is connected with the rotating coil C.

The structure and operation of the waist belt mechanism 20 will be explained with reference to FIG. This mechanism 20 consists of two groups of R seat groups 24, 24, 24, 24, 24, 24, 24, 24, 24, 40, 40, 40, 40, 30, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, .
and 25.25... Although four belts 24 and three belts 25 (two in FIG. 2) are shown,
This is an example and not a limitation. One end of both belt groups is hung on a common roll 23.

The other end of the belt 24 is hung over a guide roller 30 at the tip of a straight arm 26. The proximal end of the arm 26 is fixed to a pivot roll 29, and one end of the roll 29 is fixed to an actuating cylinder 29.

When the rod of the cylinder 29 is extended, the arm 26 and the belt 24 stand up as shown by solid lines in FIG. 6, and the belt 24 comes to hold one side of the coil C.

The other belt group 25 is guided by a bent arm 32. The arm 32 has a plurality of guides and trollers 33, and is fixed to a pivot roll 34 that is reciprocated by an operating cylinder 35. Rotation of operating cylinder 35
When the arm 32 is retracted, the arm 32 and the belt 2 hung on it
5 stands up from the open state shown in FIG. 8 to the closed state shown in solid lines in FIG. 6, and holds the other side of the coil C.

In the illustrated embodiment, when the support mechanism 40 lifts the coil C onto the conveying surface 1 as shown in FIG. enter in. At about the same time, the rotational drive means 48 of the support mechanism 40
When the chuck 44 and the coil C start rotating, the belt group 24.25 is closed around the coil C by the actuating cylinder 29.35, and the belt group 24.25 is closed around the coil C around the entire circumference as shown by the solid line in FIG. hold At this time, the packaging material feeding mechanism 51 (FIG. 1) is driven, and a predetermined packaging material is guided by the id 53 to the entrance of the contact portion between the belt 24 and the surface of the coil C. Since the belts 24 and 25 elastically hold and tightly fit the coil C, when the coil C is rotated by the chuck 44, the belts 24 and 25 are integrally attached to the coil C, and the packaging material is attached to the outer periphery of the coil C. is taken and wrapped tightly around the surface of coil C.

If the diameter of the coil C entering the working section is detected by an appropriate detection means and a signal is generated based on the diameter to control the operation of the feeding mechanism 51, the outer circumference of the coil C located in the golden winding section 5 can be approximately - The length of the packaging material to be rolled is supplied from a mechanism 51, and the cutting roll 52 operates at a timely manner to cut the packaging material into a predetermined length.

The end of the cut packaging material is located at the top To (sixth
It is preferable to set the rotation time of the coil C so that the coil C comes almost directly under the part shown in the figure) to form the overlapped part 5'Oe. Figure 7 shows
It is a perspective view of the coil C wrapped around the body in this manner, looking down from the top To force direction. In this state, it is preferable to attach a temporary fixing chip f59 as shown in FIG. 7 onto the overlapped portion 50e using an appropriate temporary fixing means provided near the top To. The final end of the cut is finally stopped at the next taping section 6. In Figure 7, 50W represents a wrapper wrapped around coil C, which has ears projecting a length E beyond each end of the coil. This protrusion or ear E is greater than the wound thickness T of the coil C. this is,
This is because, in addition to the outer circumferential surface, both end surfaces and the entrance portion of the inner circumference are to be packaged all at once with one outer circumferential packaging material.

When the torso wrapping in the state shown in FIG.
5, both belt groups 24 and 25 are in the position shown by chain lines in FIG.
1 retreats from the conveyance path l and returns to the position shown in FIG.
The support mechanism 40 connects the chuck 44 to a vertically operating cylinder 43.
The coil C is lowered by the action of , and the chuck 44 is reduced in diameter, and the coil C is placed on the conveyance path l again. Then, the drive source (not shown) for the truck 41 is energized, causing the truck 41 to move backward and the chuck 44 to be pulled out from the coil C.

In the illustrated embodiment, the explanation has been made assuming that both the cart 21 and the cart 41 move forward and backward toward the longitudinal center line of the conveyance path, but the cart 21 is stationary and the cart 4
1 may lift the coil C onto the trolley 21 and move it. Of course, in this case, the packaging material feeding mechanism 51 must be placed directly above the center of the belt group 24, 25 on the stationary truck 21.

Since the diameter of the coil steel plate C is not constant and varies in size, the belt group 24.25 and its guide arm 26.32 are designed according to the large diameter. In order to deal with objects having a small diameter, a modification as shown in FIG. 9 may be used. That is, the section 32 of the bent arm 32
a, 32a are pivotally connected, and an operating cylinder 32b is connected between them.
, and bend the arm 32 according to the diameter of the coil C. In addition, the chain line in FIG. 9 indicates the packaging material to be supplied. The rest is the same as the previous example.

Next, the tape pasting section 6 will be explained. This is the 7th
This is a working part for fixing the overlapping part 50e of the packaging material wrapped around the body in the state shown in the figure from end to end so that the body wrapping will not collapse during the next edge folding operation.

As shown in FIG. 10, the taping section 6 is
A frame 61 is set upright across the conveyance path of the frame 6.
The packaging material 5 wrapped around the body by the actuating cylinder 62 attached to 1
The receiver that receives the ear of 0W is designed to move the rod 63 forward and backward. In Figure 10, one of the receivers is attached to the cylinder 6 only on the rod 63.
2 is attached, and the other support is the same for the rod 63 (on the right in the figure). The receiving rod 63 enters into the ear E and receives the overlapped portion 50e (see FIGS. 7 and 11) from below. A guide shaft 64 is bridged horizontally on the upper part of the frame 61, and a tape application device 65 is attached to this so that it can move forward and backward in the direction of the arrow.

A tape supply reel 66 is rotatably attached to the tape application device 65, and the adhesive tape fed out from the reel is supplied under two pressing rolls 68 via a guide/cutter roll 67. If the device 65 runs in the direction of the arrow in this state, the adhesive tape will be firmly adhered to the ear portion 50e held down by the rod 63 and the stacked portion 50e on the coil C body, as shown in FIG. As shown, pasting of the final fixing tape 69 is completed.

The packaged articles finished in the state shown in FIG. In Fig. 1.2, two pairs of edge-folding parts are water-folded, but this is because each end of the coil C is subjected to the edge-folding process. Therefore, the description will be made regarding a pair of edge folding devices. The other pair just reverses this.

The edge folding section 7 includes an edge folding mechanism 70 and a coil support mechanism 71 provided on the opposite side of the conveyance path 1 to face the edge folding mechanism 70. The coil support mechanism 71 may be considered to be the same as the support mechanism 40 described above for the body wrap portion 5.

The edge folding mechanism 70 has a structure in which a plurality of folded plates 80 are assembled into a cylindrical shape with gaps between them. This assembly of folded plates 80 first wraps around the end of the coil C with a diameter larger than the outer diameter of the coil C, then reduces the diameter to the coil diameter and tightly contacts the edge of the coil end, and then wraps the outer edge of the coil. The center tilts toward the end face to fold the selvage of the packaging material onto the end face of the coil, then rotates on the end face of the coil to fold the selvage of the packaging material, and finally pulls down radially on the end face of the coil to fold the selvage of the packaging material onto the cylindrical hole of the coil. This opens the way for an appropriate pushing body to enter there. This action is schematically shown in FIG.
0 (A) is the state where the end of the coil is wound, (B
) is rotating and tilting around the outer edge CO of the coil, (
C rotates on the end face and folds the ear E, then retreats and pushes the part i that is approaching the cylindrical hole of the ear E into the cylinder 8.
5 leaves room for pushing.

FIG. 12 is a partial plan view schematically showing the appearance of an example of a mechanism for operating such an assembly of folded plates 80 as described above.

In the state shown in FIG. 13(B), after the folding plate 80 falls onto the end face of the coil and rotates, the state of the folded ears is
As shown in the figure. After the push-in tube 85 enters the cylindrical hole of the coil C, the end surface of the coil C has an appearance as shown in FIG. 15.

According to the present invention, the inner edge of the pushed-in ear tip i is finally adhered onto the paper 5 with tape 89, resulting in a shape as shown in FIG. 16.

To adhere the tape 89, a tape supply source is provided inside the push-in cylinder 85, and after pushing the ear tip i, the tape tip is fed out from the push-in cylinder 85, and while rotating the cylinder 85, the ear tip i is inserted into the cylindrical hole. It is advisable to adhere it to the inner edge of 1 and the surface of 5 paper.

As described above, the packaged object whose inner periphery, outer periphery, and end surface are completely wrapped is carried out from the carrying-out section 8 as shown in FIG.

According to the present invention, even heavy objects such as coiled steel plates can be wrapped completely automatically without manual intervention, so shipping speed can be dramatically increased, and the outer surface of heavy objects can be supported during packaging. Since there is no need for contact with objects and rotation, there is no problem such as damage to the packaging that has been applied, and there is a significant effect that heavy objects can be automatically wrapped quickly, reliably, and beautifully.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram illustrating the arrangement of the entire apparatus used for carrying out the method of the present invention, and FIG. 2 is a schematic view of FIG. 1 from above with the outer packaging material supply section (9) omitted. FIG. 3 is a perspective view illustrating the function of the paper insertion section (4); FIG. 4 is a view from the unloading section side of the conveyance path illustrating the structure of the front body wrapping section (5). , Fig. 5 is a view from the same side as Fig. 4, which explains the working state of the surface body wrap (5), and Fig. 6 is a view from the same side as Fig. 1, which explains the function of the surface body wrap (5). Fig. 7 is the cause of the coil steel plate wrapped around the body in the body part (5), Figure 8 is a perspective view illustrating the structure of the body part (5) in the body part, and Figure 9 is the body part in the body part (5). Figure 10 is a diagram showing a modified example of the mechanism, Figure 10 is a view from the unloading part side explaining the configuration of the taped part (6), Figure 11 is the cause of the coil steel plate pasted with tape, and Figure 12 is the edge fold. A plan view schematically showing the appearance of the folding plate mechanism in section (7), Figure 13 is an explanatory diagram of the function of the folding plate, and Figure 14 shows the folded ears after the state of (B) in Figure 13. FIG. 15 is an end view of the state shown in FIG. 13 (C) with the tip of the lug pushed into the cylindrical hole, and FIG. 16 is a longitudinal cross-sectional view of the coil steel plate after packaging. Figure 14 Procedural amendment (method) % formula % 1. Indication of the case 1982 Patent W No. 173948 2. Title of the invention Hollow cylindrical body packaging method and device 3. Relationship with the person making the amendment Patent application Person 11 Name: Kawanoe Zoki Co., Ltd. 2) Submit a power of attorney as attached.

Claims (1)

[Claims] 1. A method for automatically wrapping the inner periphery, outer periphery, and end face of a hollow cylindrical body in a series of operations, the width and length corresponding to the circumference and depth of the inner wall of the hollow part of the cylindrical body. Pay out three sheets of paper from the base paper roll, cut them, and attach adhesive tape to one side edge of the three sheets, exposing a portion of the adhesive surface, so that the exposed adhesive surface does not stick to other parts of the three sheets. After rolling it up and inserting it into the hollow part of the cylindrical body, it is expanded in diameter and pressed against the inner wall of the hollow part, and the exposed adhesive surface of the tape is adhered to the vicinity of the other side edge of the three papers, and a support member is attached to the hollow part of the cylindrical body. While inserting and lifting the cylindrical body, the cylindrical body is rotated by the supporting member while paying out from a supply source a circumferential wrapping material corresponding to the diameter and surface length of the cylindrical body, and the fed out circumferential wrapping paper is brought into pressure contact with the cylindrical body and its outer periphery. The cylindrical body is wrapped in a body roll shape that protrudes a predetermined length from both ends of the body, and the folds of the wrapped packaging material are adhesively fixed with adhesive tape running approximately parallel to the cylinder generatrix, and the protruding portions of the outer wrapping material are attached to the end surface of the cylinder body. A method for packaging a hollow cylindrical body, which comprises folding the edges in the opposite direction, pushing the tips of the edges into the hollow part of the cylinder, and gluing the pushed tips of the edges to the three papers. 2. Conveying means for intermittently conveying the hollow cylindrical body between each working section; 3. Means for supplying paper having a width corresponding to the circumference of the inner wall of the hollow part of the hollow cylindrical body and a length corresponding to the depth of the inner wall; 3. Apply adhesive tape to one side edge of the paper, leaving part of the adhesive side exposed.
means for rolling the three papers into a shape smaller than the diameter of the hollow part of the cylindrical body, inserting the three papers into the hollow part, expanding the diameter and adhering the three papers to the inner wall of the hollow part, and the hollow part of the cylindrical body. A combination of a means for moving in and lifting the cylindrical body from the conveying means and rotating it, a body wrapping belt mechanism that wraps around the outer periphery of the lifted cylindrical body, and a body wrapping belt mechanism that wraps around the outer periphery of the lifted cylindrical body, and attaches both ends of the length of the cylindrical body to the surface of the rotating cylindrical body. means for supplying a predetermined length of outer wrapping material with a width that protrudes further; means for adhering the end of the wrapped outer wrapping material to the surface of the previously wound portion; and said wrapping that protrudes from both ends of the cylindrical body. A hollow cylindrical body consisting of means for folding and folding the lug portion of the material into the end of the cylinder, and pushing the tip of the lug into the hollow part of the cylinder, and means for gluing the inner end of the pushed lug to the surface of the paper. packaging equipment. 3. Consisting of a combination of a mechanism for lifting and supporting the hollow cylindrical body and a body wrapping belt mechanism for holding the outer periphery of the lifted hollow cylindrical body, the support mechanism is a cart that can approach and leave in parallel to the axis of the cylindrical body. A cylindrical chuck that can expand and contract in diameter is mounted on the top so that it can move up and down and rotate, and the body-wrapping belt mechanism is in an open position in which it receives the cylindrical body, and in which it wraps around the outer periphery of the cylindrical body. It consists of two groups of belts that can be operated to open and close between the belt and the closed position, and when the cylinder is rotated by the support mechanism, the belts are connected by contact pressure with the surface of the cylinder, and the belt is connected to the surface of the cylinder and the belt. A cylindrical body wrapping device characterized in that a cylindrical body wrapping device is characterized in that a wrapping material supplied to an inlet of a contact portion with a cylindrical body is taken along and wrapped around the body.