JPH09301314A - Body wrapping device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a body wrapped condition in which each end of a packaging material is overlapped at a prescribed part irrespective of the size of a work to be packaged. SOLUTION: An upper face and each side of a work 100 to be packaged is covered with an endless packaging material 101 whose forward end is fixed to a forward end holding position D. Then, a first bottom face packaging member 6 is moved to a prescribed first moving point F to hold the packaging material 101 between the first bottom face packaging member and the work 100 to be packed, and a second bottom face packaging member 7 is moved to a prescribed second moving point G to hold the packaging material 101. The interval between the first and second moving points F, G is constant irrespective of the size of the work 100 to be packaged. In this condition, a cutting means 8 cuts the packaging material 101. Then, the packaging material 101 is covered on the bottom face of the work 100 to be packaged by the first and second bottom face packaging members 6, 7.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to paper, cellophane,
The present invention relates to an overwrap packaging device for overwrapping a thin packaging material such as a plastic film or aluminum foil on a packaged object through a process such as a body winding process, an edge folding process, and the like, and particularly relates to a body winding device used for a body process of a packaging material.

[0002]

13 is a perspective view showing a packaging process of an overwrap packaging device. First, the packaging process of the overwrap packaging device will be described with reference to FIG. The article to be packaged 100, which has been intermittently supplied to the supply position A by a supply device (not shown) such as a belt conveyor, is lifted to the body winding position E by a lifting means (not shown) called an elevator. On the other hand, the endless wrapping material 101 is crossed out in advance in the horizontal direction to the package transfer path in the vertical direction from the supply position A to the body winding position E, and the wrapping material 101 is cut into a predetermined length. . The packaging material 101 pulled out in this manner covers the upper surface or both side surfaces of the article to be packaged 100 in the process of raising the article to be packaged 100 from the supply position A to the body winding position E.

Next, the packaging material 1 is placed on the bottom surface of the article 100 to be packaged.
01 is folded at one end side and then the packaging material 101
The other end side is folded into the bottom surface of the article to be packaged 100, and the body winding process is completed. At this time, both ends of the packaging material 101 folded into the bottom surface of the article to be packaged 100 are overlapped by a predetermined length. The body wrapping device is in charge of the body wrapping process. Packaged object 10 that has completed the body winding process
0 is carried out from the body winding position E and the overlapping portion of the packaging material 101 is fused in the next sealing step. This sealing process
This is performed by a heat seal device provided on the carry-out path of the article to be packaged 100.

After that, a packaging material portion (referred to as an ear) 101a protruding in the front-rear direction of the article to be packaged 100 is folded as shown in the drawing (ear folding step), and the folded portion is fused and wrapped to form a packaging process for an overwrap packaging device. Ends.

[0005]

The object to be packaged 100 will now be described.
Both ends of the packaging material 101 wound around the body are shown in FIGS.
As shown in FIG. 2, one side surface of the article to be packaged is set as a reference surface 100a, and an area (a
-It must be overlapped in b). If the positions of the overlapping portions (ab) are misaligned, proper sealing cannot be performed in the next step, resulting in inconvenience causing packaging defects. In general, the proper sealing state means packaging material 1
Both ends of 01 are overlapped and fused, and the end of the packaging material 101 wound on the upper side is not fused by an arbitrary length c to form an open end. The hatched portions in FIGS. 11 and 12 are regions where the overlapping packaging materials are fused.

Therefore, in the conventional body-wrapping device, the packaging material 101 is changed every time the size of the object 100 to be supplied changes.
The length of both sides (see FIG. 10) of the packaging material 101 that covers the bottom surface of the object to be packaged 100 is adjusted to an appropriate size by adjusting the pull-out length of the object or adjusting the supply position of the object to be packaged 100. It required work, and it took time to change the setup.

It is also possible to properly seal the overlapping region of the packaging material 101 by adjusting the position of the heat sealing device, but in this case as well, the complicated work of adjusting the positioning of the heat sealing device is required. It will be necessary and it will take time to change the setup.

Further, it is not uncommon for the same type of articles 100 to be packaged to have different sizes. Regarding such a dimensional error of the packaged object 100, the adjustment work as described above cannot be performed, and when the packaged object 100 having a size exceeding the allowable dimension is supplied, the seal of the end of the packaging material is properly performed. However, there was no other way to deal with it except to exclude it as a defective packaging, which caused a decrease in yield.

The present invention has been made in order to solve such a problem, and an object thereof is to provide a body wrapping device capable of overlapping both ends of a wrapping material at a certain position regardless of the size of the article to be packaged. To do.

[0010]

In order to achieve the above object, the present invention is directed to a supply position of an article to be packaged, a winding position provided above the supply position, and a vertical direction extending from the supply position to the winding position. The following configuration is provided in a body wrapping device having a package transfer route and a packaging material withdrawing route that intersects the package transfer route in the lateral direction.

A supply means for intermittently supplying and arranging an article to be packaged at a supply position. A feeding roller that feeds the endless packaging material from a point on the upstream side in the horizontal direction with respect to the body winding position. Drawer means for gripping the leading end of the delivered packaging material, withdrawing it along the withdrawal path, and positioning the leading end of the packaging material to a predetermined leading end holding position provided on the downstream side in the lateral direction of the body winding position. Positioning means for positioning the reference surface at the lateral origin position set on the upstream side in the horizontal direction from the tip holding position, with the side surface on the downstream side in the horizontal direction supplied to the supply position as the reference surface. Elevating means for transferring the object to be packaged whose reference plane is positioned at the horizontal origin position from the supply position to the body winding position. A first bottom surface wrapping member that is movable above the wrapping material withdrawal path and along the bottom surface of the object to be packaged that is disposed at the body wrapping position from the downstream side in the lateral direction of the body wrapping position. A second bottom surface wrapping member that is movable above the wrapping material withdrawal path and along the bottom surface of the object to be packaged that is disposed at the body wrapping position from the upstream side in the lateral direction of the body wrapping position. A cutting unit that cuts the packaging material delivered from the delivery roller at a predetermined cutting position provided on the upstream side in the horizontal direction with respect to the body winding position.

Then, the first bottom wrapping member moves to a predetermined first movement point where the wrapping material is held between the first bottom wrapping member and the wrapping object, and the second bottom wrapping member moves between the wrapping object and the wrapping object. When you move to a predetermined second movement point where you hold the packaging material with,
It is characterized in that the cutting means cuts the packaging material.

That is, the body winding device of the present invention is shown in FIG.
As shown in (1), the object 100 to be packaged is supplied to the supply position A by the supply means 1, and the reference surface 100a of the object 100 to be packaged is positioned by the positioning means 2 to the lateral origin position B preset in the apparatus. On the other hand, the endless packaging material 101 is delivered by the delivery roller 3, the leading end of the delivered packaging material 101 is grasped by the drawer means 4, and is drawn out along the drawing path C. Then, the leading end of the drawn packaging material 101 is positioned at a predetermined leading end holding position D.

Then, the object 10 to be packaged is moved by the elevating means 5.
0 is transferred from the supply position A to the body winding position E. In this transfer process, the packaging material 10 pulled out on the pulling path C
1 covers the upper surface or both side surfaces of the article to be packaged 100.
At this time, the packaging material 101 is sequentially delivered from the delivery roller 3.

Then, after the first bottom surface packaging member 6 moves to the first movement point F and the second bottom surface packaging member 7 moves to the second movement point G, the cutting means 8 causes the packaging material 101.
Disconnect. The first moving point F and the second moving point G are set at fixed positions regardless of the size of the article to be packaged 100. Therefore, the distance between the first moving point F and the second moving point G is constant regardless of the size of the article to be packaged 100.

Further, since the tip of the packaging material 101 is positioned at the predetermined tip holding position D, the distance from the first moving point F to the tip holding position D, that is, the length of the packaging material 101 extending therebetween. Is always constant. Further, the distance from the second movement point G to the cutting position H of the packaging material 101, that is, the length of the packaging material 101 extending therebetween is always constant.

Therefore, the length of the packaging material 101 covering from the first moving point F along the bottom surface of the packaged object 100, and the packaging material 101 covering from the second moving point G along the bottom surface of the packaged object 100. Is constant regardless of the size of the article to be packaged 100, and as a result, the overlapping length of the packaging materials 101 can be always constant.

By setting the first moving point F and the second moving point G with reference to the horizontal origin position B,
The packaging material 101 can always be superposed at a fixed position on the reference surface 100a of the object to be packaged 100 positioned at the lateral origin position B. In the present invention, the upstream side in the lateral direction refers to the side for feeding the packaging material 101, and the downstream side in the lateral direction refers to the side for holding the tip of the packaging material 101.

[0019]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 2 is a configuration diagram of the body winding device according to the embodiment of the present invention. Note that FIG.
9A to 9C, the same or corresponding portions as those in FIG. 1 described above are denoted by the same reference numerals. This body wrapping device has
The supply position A and the body winding position E of the article to be packaged 100 are preset. The body-wrapping position E is set above the supply position A, and the space from the supply position A to the body-wrapping position E serves as a longitudinal product transfer path.

A box-shaped article 100 to be packaged is intermittently supplied to the supply position A from the downstream side (the left side in the drawing) in the horizontal direction by a supply pusher (supply means) 1. Further, a stopper 10 is provided on the side of the supply position A opposite to the side on which the article 100 is supplied. This stopper 10
Elastically abuts the side surface of the article to be packaged 100 that has been transported to the supply position A, and cooperates with the supply pusher 1 to package the article to be packaged 1.
Position 00.

In this embodiment, the side surface (the side surface on the downstream side in the lateral direction) of the article 100 to be contacted by the supply pusher 1 is used as the reference surface 100a. In addition, a horizontal origin position B is set in advance in this body winding device, and the reference surface 100a of the article to be packaged 100 is positioned at the horizontal origin position B by the supply pusher 1 and the stopper 10.
An elevator (elevating means) 5 is provided below the supply position A, and the object to be packaged 100 carried to the supply position A is placed on the upper surface of the elevator 5. The elevator 5 lifts the packaged object 100 placed on the upper surface along the packaged object transfer path and transfers the packaged object 100 to the body winding position E.

A pair of feeding rollers 3 is provided at a predetermined position on the upstream side (right side in the drawing) of the body winding position E in the lateral direction. On the upstream side of the feeding roller 3, a preliminary feeding roller 11 and a winding drum 12 around which an endless packaging material 101 is wound are provided. The endless packaging material 101 wound on the winding drum 12 is fed by the preliminary feeding roller 11 and further fed by the feeding roller 3 to the downstream side in the horizontal direction. The delivery roller 3 is rotationally driven by a drive motor (not shown) to deliver the packaging material 101 by a certain length.

The dancer roller 13 is vertically movable at an intermediate portion between the feeding roller 3 and the preliminary feeding roller 11, and the packaging material 1 fed from the preliminary feeding roller 11 is provided.
01 is wound around the dancer roller 13. The packaging material 101 fed from the preliminary feeding roller 11 while the feeding roller 3 is stopped is stocked in a state of hanging downward due to the weight of the dancer roller 13. When the feeding roller 3 rotates, the stocked packaging material 101 is fed from the roller 3.

An upper limit switch 14 and a lower limit switch 15 are provided between the feeding roller 3 and the preliminary feeding roller 11 in order to always stock a certain amount of packaging material 101, and the dancer roller 13 is a lower limit switch. When it comes into contact with 15, the rotation of the preliminary feeding roller 11 is stopped, and when the dancer roller 13 comes into contact with the upper limit switch 14, the preliminary feeding roller 11 is rotated.

A gripping member (drawing means) 4 for the packaging material 101 is provided at a position facing the feeding roller 3 so as to be movable laterally. The gripping member 4 grips the tip of the packaging material 101 fed from the feeding roller 3,
Drawer path C that intersects the package transfer path in the lateral direction
The packaging material 101 is pulled out to the downstream side in the horizontal direction. The feeding roller 3 has a structure in which it can be freely idled in the direction in which the packaging material 101 is fed out, and the feeding roller 3 idles following the drawing operation of the packaging material 101 by the gripping member 4,
The packaging material 101 for the length of the drawer is unrolled.

A leading end holding position D of the packaging material 101 is preset at a predetermined position on the downstream side of the drawing path C of the packaging material 101. The tip holding position D is set on the downstream side in the lateral direction with respect to the body winding position E, and the supply position A
The article to be packaged 100 transferred from the to the winding position E is prevented from interfering with the gripping member 4.

Further, above the drawing path C of the packaging material 101, a first bottom surface packaging roller (first bottom surface) movable laterally along the bottom surface of the object 100 to be packaged arranged at the body winding position E. A wrapping member 6 and a second bottom wrapping roller (second bottom wrapping member) 7 are provided. Here, the first bottom surface packaging roller 6 moves from the downstream side in the lateral direction to the upstream side with respect to the body winding position E. On the other hand, the second bottom surface packaging roller 7 moves from the upstream side in the lateral direction with respect to the body winding position E.

Further, a cutter (cutting means) 8 is provided at a predetermined cutting position H which is set on the upstream side in the lateral direction of the body winding position E.
Is provided, and the packaging material 101 fed out from the feeding roller 3 and pulled out by the gripping member 4 is cut at the cutting position H. A guide guide 16 for the packaging material 101 is provided near the downstream side of the cutter 8, and will be described later with reference to FIG.
As shown in FIG.
When the packaging material 101 is pulled upward due to interference with 0, the packaging material 101 is prevented from coming into contact with the cutter 8 and cutting.

In the lateral direction of the body winding position E, the article 10 to be packaged is
The unloading path I of 0 is formed, and the object to be wrapped 100 in which the packaging material 101 is wrapped around the wrapping material is pushed out from the wrapping position E by the unloading pusher 17 and is transported by using a unloading means such as a belt conveyor. There is. Carry-out route I
The heat sealing device 18 is installed at the predetermined sealing position J set above, and at this sealing position J, the package 10
The overlapping portion of the packaging material 101 that is wound around 0 is fused.

Next, the operation of the body winding device according to this embodiment will be described mainly with reference to FIGS. First, the feeding roller 3 is rotationally driven to feed a fixed amount of the leading end of the packaging material 101, and the gripping member 4 moves from the downstream side in the lateral direction along the pullout path C, so that the leading end of the packaging material 101 is fed. Grasp and pull out to the downstream side in the lateral direction. The leading end of the drawn packaging material 101 is positioned at the leading end holding position D (see FIG. 3).

On the other hand, at the supply position A, the box-like article 100 is intermittently supplied and arranged by the supply pusher 1 (see FIG. 2). Here, the reference surface 100 of the article to be packaged 100
a is positioned at the horizontal origin position B. Subsequently, the object to be packaged 100 is lifted by the elevator 5 and transferred to the body winding position E located above. In this transfer process, the packaging material 101 pulled out along the pullout path C interferes with the article to be packaged 100, and the packaging material 101 is fed out from the feeding roller 3 in accordance with the raising operation of the article to be packaged 100. And
A state in which the upper surface or both side surfaces of the object to be packaged 100 transferred to the body winding position E is covered with the packaging material 101 is formed (FIG. 4).
reference).

Next, the first bottom wrapping roller 6 is moved from the downstream side in the horizontal direction, and the second bottom wrapping roller 7 is moved from the downstream side in the horizontal direction, and the rollers 6 and 7 move the bottom surface of the article 100 to be packaged. The elevator 5 is lowered at the timing of supporting (see FIG. 5). Subsequently, the first bottom wrapping roller 6 is moved to a preset predetermined movement point (first movement point) F, and the second bottom wrapping roller 7 is preset to a predetermined movement point (second movement point). ) Move to G (see FIG. 1). Then, each bottom packaging roller 6, 7
When moved to G, the cutter 101 cuts the packaging material 101.

Here, the first moving point F is set at a position where the first bottom wrapping roller 6 and the article 100 to be wrapped hold the wrapping material 101. Similarly, the second movement point G
Is set to a position where the packaging material 101 is held between the second bottom wrapping roller 7 and the article to be packaged 100. Moreover,
These first and second movement points F and G are set with the horizontal origin position B as a reference, and the distance between the movement points F and G is constant regardless of the size of the article 100 to be packaged.

Further, since the tip of the packaging material 101 is positioned at a predetermined tip holding position D, the distance from the first moving point F to the tip holding position D, that is, the length of the packaging material 101 extending therebetween. Is always constant. Further, the distance from the second movement point G to the cutting position H of the packaging material 101, that is, the length of the packaging material 101 extending therebetween is always constant.

Therefore, the length of the packaging material 101 covering from the first moving point F along the bottom surface of the packaged object 100, and the packaging material 101 covering from the second moving point G along the bottom surface of the packaged object 100. Is constant regardless of the size of the article to be packaged 100, and as a result, the overlapping length of the packaging material 101 can be always constant. Further, since the first movement point F and the second movement point G are set with reference to the horizontal origin position B, it is always constant with respect to the reference surface 100a of the article to be packaged 100 positioned at the horizontal origin position B. The packaging material 101 can be overlapped at a place.

Thereafter, the gripping member 4 releases the tip of the packaging material 101, and the first bottom surface packaging roller 6 moves laterally upstream toward the upstream side along the bottom surface of the article to be packaged 100, and the packaging material 101. The bottom of the article to be packaged 100 is covered up to the tip (see FIG. 6). At this time, at the same time, the pushing operation of the article 100 to be packaged by the carry-out pusher 17 may be started, and the article 100 to be packaged may be gradually moved to the carry-out path in the right direction in FIG. In that case, the first bottom surface packaging roller 6 is moved at a speed higher than the extrusion speed of the object 100 to be packaged by the carry-out pusher 17.

The packaging material 10 by the first bottom packaging roller 6
When the covering operation of No. 1 progresses, a small amount of packaging material 10 remains from the tip.
1 adheres to the bottom surface of the article to be packaged 100 by its own elastic force (see FIG. 6). At this point, the relative movement of the first bottom wrapping roller 6 with respect to the article to be wrapped 100 is stopped. Then, the relative movement of the article 100 to be packaged to the downstream side in the lateral direction is advanced by the second bottom wrapping roller 7 (see FIG. 6), and the packaging material 1
The cut end side of 01 is covered on the bottom surface of the article to be packaged 100, and the leading end side and the cut end side of the packaging material 101 are overlapped (see FIG. 7).

Subsequently, the first bottom wrapping roller 6 is retracted to the downstream side in the horizontal direction, and the second bottom wrapping roller 7 is moved to the downstream side in the horizontal direction, so that the wrapping material for the bottom surface of the article 100 to be packaged. The covering and superposition of 101 is completed (see FIG. 8). Unloading pusher 17 continues to be packaged 1
00 is continued to be extruded, and the article to be packaged (wrapping material is wrapped around the belt) is delivered to the delivery means such as a belt conveyor provided in the delivery path.
Deliver 100 (see FIG. 9). After that, at the sealing position J shown in FIG. 2, the heat sealing device 18 fuses the polymerized portion of the packaging material 101 formed on the bottom surface of the object to be packaged 100 and conveys it to the subsequent step (see FIG. 2).

The present invention is not limited to the above embodiment. For example, each of the first and second bottom surface packaging members is formed of a plate-shaped member or a plurality of rod-shaped members, and these members are extended in the lateral direction, and the packaging material is applied to the bottom surface of the packaged object at the tip. The structure may be such that the coating is performed on the. With such a plate-shaped member or rod-shaped member extending in the lateral direction, the bottom surface portion of the packaged material coated with the packaging material can be supported by these members. That is, the first and second bottom surface packaging members can also serve as the support member for the article to be packaged.

On the other hand, in the first and second bottom wrapping rollers 6 and 7 shown in the above embodiment, a plate-like or rod-like supporting member is provided behind each roller 6 and 7, and these supporting members are provided. It is preferable that the member to be packaged is supported by the member. In addition, in order to securely hold the tip of the packaging material at the tip holding position, a pair of pressing plates should be installed at the same position, and the tip of the packaging material pulled out by the gripping member should be held by this pressing plate. You may

[0041]

As described above, according to the body wrapping device of the present invention, the first bottom wrapping member moves to the predetermined first movement point where the wrapping material is held between the first bottom wrapping member and the wrapping material, When the second bottom surface packaging member moves to a predetermined second movement point that holds the packaging material with the article to be packaged, the cutting means cuts the packaging material. Regardless of, both ends of the packaging material can be overlapped at certain places.

[Brief description of drawings]

FIG. 1 is a configuration diagram for explaining a main part of a body winding device of the present invention.

FIG. 2 is a configuration diagram showing an overall structure of a body winding device according to an embodiment of the present invention.

FIG. 3 is an operation explanatory view of the body winding device according to the embodiment of the present invention.

FIG. 4 is an operation explanatory view following FIG. 3 of the body winding device according to the embodiment of the present invention.

FIG. 5 is an operation explanatory view of the body winding device according to the embodiment of the present invention, following FIG. 4;

FIG. 6 is an operation explanatory view of the body winding device according to the embodiment of the present invention, following FIG.

FIG. 7 is an operation explanatory diagram of the body winding device according to the embodiment of the present invention, following FIG. 6;

FIG. 8 is an operation explanatory view following FIG. 7 of the body winding device according to the embodiment of the present invention.

FIG. 9 is an operation explanatory diagram of the body winding device according to the embodiment of the present invention, following FIG. 8;

FIG. 10 is a front view showing an intermediate state of a wrapping material wrapped around an object to be wrapped.

FIG. 11 is a front view showing a state in which the packaging material is wrapped around the object to be packaged.

FIG. 12 is a bottom view showing a state in which the packaging material is wrapped around the object to be packaged.

FIG. 13 is a perspective view showing a packaging process of the overwrap packaging device.

[Explanation of symbols]

 1: Supply pusher (supply means) 3: Delivery roller 4: Gripping member (drawing means) 5: Elevator (elevating means) 6: First bottom wrapping roller (first bottom wrapping member) 7: Second bottom wrapping Roller (second bottom packaging member) 8: Cutter (cutting means) 16: Guide guide 17: Delivery pusher 18: Heat seal device A: Supply position B: Horizontal origin position C: Drawing path D: Tip holding position E: Body winding Position F: First moving point G: Second moving point H: Cutting position I: Carrying out route J: Sealing position

Claims (2)

[Claims] 1. A supply position of an article to be packaged, a body winding position provided above the supply position, a longitudinal article transfer path extending from the supply position to the body winding position, and a package transfer path. In a body-wrapping device having a packaging material withdrawing path that intersects in the lateral direction, a supply means for intermittently supplying and arranging an object to be packaged at the supply position, and an endless packaging material in a lateral direction upstream of the body-wrapping position. Side feeding roller, and the leading end of the fed packaging material is pulled out along the withdrawing path, and the packaging is carried out to a predetermined tip holding position provided on the downstream side in the lateral direction from the body winding position. Withdrawing means for positioning the tip of the material, the side surface on the downstream side in the horizontal direction of the packaged material supplied to the supply position as a reference surface, at the horizontal origin position set on the upstream side in the horizontal direction from the tip holding position, Standard Positioning means for positioning, a lifting and lowering means for transferring the object to be packaged with the reference plane positioned at the lateral origin position from the supply position to the body winding position, and the body winding position above the withdrawing path of the packaging material. A first bottom surface wrapping member that is movable laterally downstream from the body-wrapping position along the bottom surface of the packaged object that is arranged in the package, and is placed at the body-wrapping position above the drawing path of the packaging material. A second bottom surface wrapping member movable along the bottom surface of the package from the upstream side in the lateral direction relative to the body winding position, and a wrapping material delivered from the delivery roller are provided on the upstream side in the lateral direction from the body wrapping position. And a cutting means for cutting at a predetermined cutting position, the first bottom surface packaging member moves to a predetermined first movement point for holding the packaging material between the object to be packaged, and the second Bottom envelope Member, when moved to a predetermined second moving point for clamping the packaging material between the packaged articles, wrapping device, characterized in that said cutting means is adapted to cut the packaging material. 2. The body winding device according to claim 1, wherein the first movement point and the second movement point are set with reference to the lateral origin position.