JP3299798B2 - Automatic packaging equipment for long bodies - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic packing apparatus for entirely packing a long body such as a vinyl chloride pipe.

[0002]

2. Description of the Related Art In general, a long body such as a vinyl chloride pipe is packed and shipped in a state where several pieces are bound.

[0003] Conventionally, as a device for entirely packaging this elongated body, a clamp for raising and lowering the elongated body has been used.
That is, first, the bound elongate body was lifted by a clamp, and a wrapping paper was manually spread thereunder. After that, the long body was put down on the wrapping paper, and the wrapping paper was manually wound, and a packing tape was stuck thereon for packaging.

[0004] The wrapping paper used for this wrapping includes:
Wrapping paper is used in which the surface of kraft paper is subjected to treatments such as weather resistance and water resistance.

[0005]

However, in the case of the above-mentioned conventional clamp, since it is a manual operation except for elevating the long body,
Inconvenience such as troublesome packaging occurs. For this reason, it is conceivable to automate the packaging operation while sensing the state of the elongated body with a sensor or the like.However, in this case, the disadvantage is that the sensor is blocked by kraft paper, making it difficult to detect the elongated body. Occurs.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a long-length automatic packing apparatus capable of automatically packing a long-length body such as a vinyl chloride pipe. .

[0007]

An automatic packing apparatus according to the present invention for solving the above-mentioned problems is provided with a conveying means for conveying a long body in an axial direction, and a surface provided with a treatment such as weather resistance and water resistance.
Heat-sealable on the inner surface of the kraft paper
A wrapping unit configured to send a band-shaped wrapping paper on which a coating layer is formed into a tubular shape and to wrap the wrapping paper around the elongate body, and to wrap the wrapped paper thus wrapped around the end of the elongate body. A sealing means for cutting and sealing each time, a packaging sensor provided at a position before packaging of the elongated body, and a packaging body longer than the packaging sensor.
A sealed sensor provided at a position of the conveyance rear end direction, by wrapping the sensor, follicle detects the feed end portion of the long member
Start the surrounding packaging of the long body by paper wrapping, and after transporting the long body
Conveying a long body by detecting the end and stopping after a predetermined time
While controlling the operation of the wrapping means so as to provide a cutting margin by feeding the wrapping paper to the rear end side, and detecting the rear end of the transport of the long body by the wrapping sensor by the sealing sensor.
Prior to the transfer of the long object, the rear end of the long object is detected.
And control means for controlling the operation of the sealing means so as to cut and seal the cutting margin of the wrapping paper on the feed front end side .

The wrapping paper used in the automatic packing apparatus has a heat-sealable heat-sealing layer formed on the inner surface of a kraft paper whose surface is subjected to a treatment such as weather resistance and water resistance. is there.

[0009]

According to the present invention, the long body is transported in the axial direction by the transport means, and the surface of the long body is weather-resistant by the packaging means.
Of kraft paper that has been subjected to treatments such as water resistance and water resistance
A belt-shaped wrapping paper having a heat-sealable layer formed on the inner surface thereof is formed and sent out while being formed in a tubular shape, and is wrapped around the long body. The surrounding wrapped paper is cut and sealed at each end of the long body by a sealing means. Then, the control means, the packaging sensor provided at a position before packaging elongated body, by the wrapping paper by detecting the conveyance end portion of the long member
Starts the surrounding packaging of the long body and detects the rear end of the transport of the long body
And then stop after a predetermined time to wrap the
The operation of the wrapping means is controlled so as to provide a cutting allowance by feeding the wrapping paper idly . The control means detects the feed rear end of the elongate member by sealing the sensor provided at the position before packaging elongated body, by sealing the sensor, the packaging sensor
Of a long object before detection of the trailing end of the long object
Detects the rear end and wraps the package around the transport end of the long body.
The operation of the sealing means for cutting and sealing the paper is controlled.

[0010]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 and FIG. 2 schematically show the entire structure of the automatic packing apparatus 1, and FIG. 3 shows a state where the long body 2 is packed by the automatic packing apparatus 1.

That is, the automatic packing apparatus 1 includes a conveying device 3 for the long body 2, a packaging device 5 for surrounding and wrapping the long body 2 with the wrapping paper 4, and the wrapping paper 4 for each long body 2. The apparatus includes a sealing device 6 that is cut and individually closed, and a control device 7 that controls the packaging device 5 and the sealing device 6 by a packaging sensor 71 and a sealing sensor 72.

The long body 2 is supplied to the transfer device 3 in a state where several long bodies are bound by a polypropylene band 8 or the like. Examples of the long body 2 include pipes such as vinyl chloride pipe. However, as long as the long body needs to be packed, it is not particularly limited to a pipe, but may be a bar or a square bar. You may. In addition, since the elongate bodies 2 are bound in an appropriate number, the elongate bodies 2 can be packed one by one when the diameter is large.

The conveying device 3 comprises a conveyor main body 31 and guides 32 provided on both sides of the conveyor main body 31, and the guides 3 are provided in accordance with the width of the long body 2 supplied.
2 can be set.

As shown in FIG. 4, the wrapping paper 4 has a roving cloth 4 on a surface of a kraft paper 41 with a resin layer 42 interposed therebetween.
No. 3 is laminated to improve weather resistance and water resistance. The wrapping paper 4 is made of kraft paper 41.
A fusion resin layer 44 is also provided on the inner surface side of the substrate. The fusion resin layer 44 enables heat fusion between the inner surfaces.

The wrapping device 5 guides the wound wrapping paper 4 placed on the supply device 51 to the lower side of the forming part 53 by a plurality of rollers 52. The supply device 51 is configured to wrap the wrapping paper 4 wound on a roller 511.
It has been made to support. In addition, this supply device 5
Numeral 1 is movable on the rails 512, and by moving on the rails 512, replacement with a new wrapping paper 4 can be easily performed.

The wrapping paper 4 supplied from below the forming section 53 is folded over the forming section 53 and is conveyed by a conveyor 54 while being formed into a substantially cylindrical shape. Therefore, a wing portion 531 whose width can be adjusted in accordance with the width of the wrapping paper 4 extends below the forming portion 53, and the wrapping paper 4 is formed by the wing portion 531.
Has been made to guide. A groove 532 for forming the wrapping paper 4 into a cylindrical shape is formed on the upper side of the forming portion 53, and the wrapping paper 4 is formed into a substantially cylindrical shape by passing through the groove 532. ing.

Further, a center sealing device 55 is provided above the conveyor 54 for transporting the wrapping paper 4, and both ends of the wrapping paper 4 formed in a substantially cylindrical shape are completely fused by heat. It is designed to be formed into a cylindrical shape. That is, as shown in FIG. 5, the center sealing device 55 is configured to sandwich the inner surfaces of both ends of the wrapping paper 4 in a state of being overlapped by two pairs of rollers 551. The hot air heater 552 provided between the two pairs of rollers 551 blows hot air onto the wrapping paper 4 held between the rollers 551. Thus, the wrapping paper 4 is formed into a complete tubular shape by heat-sealing the fusion resin layers 44 on the inner surface. The hot air heater 55
2 is only when the wrapping paper 4 passes between the rollers 551,
Hot air is blown on the wrapping paper 4 so that the wrapping paper 4 is
When the wrapping paper 4 is stopped, the conveyor 54 that conveys the wrapping paper 4 and the hot air heater 552 are linked by a crank device 553 connected to the hot air heater 552 so as not to blow hot air onto the wrapping paper 4. It has been done. As shown in FIG. 6, the center seal device 55 is configured such that the roller 551 and the hot air heater 552 can be moved up and down. The diameter of the tubular wrapping paper 4 can be adjusted by adjusting the fusion position of the wrapping paper 4 according to the elongated body 2 wrapped and enclosed in the wrapping paper 4. .

The packaging device 5 is provided continuously to the rear end of the transport device 3 so that the long body 2 transported by the transport device 3 can be surrounded and packaged.

As shown in FIG. 7, the sealing device 6 is configured such that a seal piece 61 having a cutting blade is pinched by a crank mechanism 63 connected to a cylinder device 62. The sealing piece 61 is configured to hold the wrapping paper 4 in which the elongate body 2 is surrounded and wrapped at the position of the cutting margin 40 provided at each end of the elongate body 2. Thus, the sealing piece 61 cuts the wrapping paper 4 at each end of the long body 2. In addition, the sealing piece 61
The cut end of the wrapping paper 4 is heated and heat-sealed.

The seal piece 61 is provided with a cylinder device 62.
And, it slides on the rail 64 together with the crank mechanism 63. Then, by sliding on the rail 64, the sealing piece 61 can pinch the wrapping paper 4 while following the conveyance of the wrapping paper 4. That is, the sealing piece 61 holds the wrapping paper 4 at the base end portion A of the rail 64 and cuts and fuses the cutting margin 40 of the wrapping paper 4 while following the conveyance of the wrapping paper 4. Then, after releasing the sandwiched state at the distal end B of the rail 64, the rail 64 returns to the position of the proximal end A of the rail 64 again, and the same operation is repeated.

As shown in FIG. 8, the control device 7 controls the packaging sensors 7 disposed at the detection positions P1 and P2 of the transport device 3.
The transport state of the elongated body 2 is grasped by 1 and the sealing sensor 72. Then, the timing is measured according to the transport state of the elongated body 2 to control the operations of the packaging device 5 and the sealing device 6 provided after the transport device 3. Among them, the detection position P1
The packaging sensor 71 detects the leading end and the trailing end of the elongated body 2 and controls the packaging device 5.
Further, the sealing sensor 72 provided at the detection position P2
The rear end of the elongated body 2 is detected to control the sealing device 6.

That is, first, the long body 2 conveyed by the conveying device 3 is moved to the packaging sensor 7 at the position P1.
When 1 is detected, the packaging device 5 is operated, and the elongated body 2 is surrounded and packaged.

Next, the sealing sensor 7 at the position P2
When 2 detects the rear end of the elongated body 2, the sealing device 6 is operated to cut and seal the portion of the cutting margin 40 of the wrapping paper 4 provided for each elongated body 2.

Then, the packaging sensor 7 at the position P1
When 1 detects the rear end of the elongated body 2, the packaging device 5 stops after a predetermined second from the detection. That is, by stopping the wrapping device 5 after a predetermined time, the wrapping paper 4 is fed by the distance D corresponding to the predetermined time, and this distance D becomes a cutting margin 40 of the wrapping paper 4. Thereafter, the long body 2 is detected and packaging is performed in the same manner.

When the length of the elongated body 2 is changed,
The control device 7 is controlled by a sealing sensor 72 at a predetermined position provided according to the length. For example, when the length of the long body 2 becomes long, the operation timing of the sealing device 6 can be measured by the sealing sensor 72 provided at the position P3.

The long body 2 after packaging is conveyed to the next step by a conveyor 9 provided on the rear end side of the conveyance of the sealing device 6, and bound by a polypropylene band 8 (see FIG. 3).

[0028]

As described above, according to the present invention, the operation of the wrapping means and the sealing means is controlled by the wrapping sensor and the sealing sensor provided at the position before wrapping of the long body, and thus the transporting means is transported by the transporting means. The elongate body is surrounded and wrapped by the wrapping means, and can be cut and sealed at each end of the elongate body by the sealing means, so that the wrapping paper does not block these sensors, The elongate body can be completely automated for packaging, and labor costs for packaging can be reduced.

The wrapping paper used in the present invention can be made into a good wrapping state by a simple operation such as heat-sealing the inner surfaces of the wrapping paper. Switching from work to automatic packaging can be easily realized.

[Brief description of the drawings]

FIG. 1 is a plan view schematically showing the overall configuration of an automatic packing device.

FIG. 2 is a side view schematically showing the entire configuration of the automatic packing device.

FIG. 3 is a partially cutaway side view showing a state in which a long body is packed by the automatic packing apparatus.

FIG. 4 is a partial cross-sectional view schematically illustrating the entire configuration of the wrapping paper.

FIG. 5 is a plan view of a main part showing only a main part of the center seal device.

FIG. 6 is a cross-sectional view showing a state in which a long body is surrounded and packaged by a center sealing device.

FIG. 7 is a process diagram illustrating the operation of the sealing device.

FIG. 8 is a process chart illustrating the operation of the control device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automatic packing apparatus 2 Long body 3 Conveying apparatus (conveying means) 4 Wrapping paper 44 Fused resin layer (heat-fused layer) 5 Packing apparatus (packing means) 6 Sealing apparatus (sealing means) 7 Control apparatus (control means) 71 Packaging sensor 72 Sealing sensor

Claims (1)

(57) [Claims] 1. A conveying means for conveying a long body in an axial direction,
Surfaces that have been treated for weather resistance, water resistance, etc.
A heat-sealable heat-sealing layer is formed on the inner surface of raft paper.
A packaging means adapted to surround wrapped around the belt-like wrapping paper is sent while forming a tubular shape elongated bodies, cut sealed wrapper and this surrounded packaged in each end portion of the elongated body Sealing means to be provided, a packaging sensor provided at a position before packaging of the elongated body, and a rear end portion of the transport of the elongated body more than the packaging sensor.
A sealed sensor provided at the position of the direction, the packaging sensor, the length by wrapping paper by detecting the conveyance end portion of the long member
Start the surrounding packaging of the long body and detect the trailing end of the long body.
To stop after a predetermined time and wrap the
With paper and feed air to control the operation of the packaging unit to provide a cutting margin, the sealing sensors, said packaging cell
Prior to the detection of the rear end of the long body by the sensor, the rear end of the long body is detected and the packaging at the front end of the long body is detected.
And a control means for controlling the operation of the sealing means so as to cut and seal the cutting margin of the paper .