JP3126310U - Bag taping equipment - Google Patents

Abstract

To provide a bag taping device capable of automatically forming a notch for opening at an end of an over tape in which a bag opening is sealed.
An upper end bag mouth portion of a bag is folded back by a bag sealing device, and an over tape to which a cut tape is attached is attached to the bag mouth portion, and one end portion of the over tape protrudes from a side end of the bag. With the carrier chain 9, the bag 1 is raised and the over tape protruding portion is sent to the cut forming device 8 toward the downstream side, and the cut forming device 8 is located on the upper and lower sides across the moving path of the cut tape. The two cutters 25 are installed so as to protrude and immerse across the movement path, and when one end of the over tape reaches the installation position of the cutter 25, the protruding cutter 25 is one end of the over tape. Make an incision.
[Selection] Figure 8

Description

  The present invention relates to a bag taping device.

Bags containing cereals, powders and the like may be sealed by folding the upper end opening and applying an over tape to the outer surface.
As a device for sealing such a bag, it comprises a pair of front and rear carrier chains for holding and transporting the bag in a suspended state with the mouth facing up, and a taping mechanism for taping the upper end of the bag with paper tape, A sealing device provided with a folding mechanism that folds the upper end of the bag in front of the taping mechanism is known (see Patent Document 1).
However, the bag sealed with this sealing device had to peel off the paper tape or cut the bag with a blade when taking out the contents, which was troublesome to open.

Japanese Patent No. 3581875

  The problem to be solved by the present invention is to provide a bag taping device capable of automatically forming a notch for opening at the end of an over tape that has sealed the bag opening.

  The bag taping device of the present invention comprises a transport device for transporting a bag in an upright state, and a bag sealing device and a notch forming device installed on the upstream and downstream sides of the transport path of the transport device, respectively. The device folds the upper end bag mouth portion of the bag, and attaches the over tape with the cut tape attached to the back surface so as to cover the bag mouth portion from both sides, and attaches the over tape to the bag at one end portion. The conveying device sends the bag from the bag sealing device to the incision forming device with the protruding portion of the over tape facing downstream, and the incision forming device includes the cut tape. On the upper and lower sides across the movement path of the over tape, and has two cutters installed so as to protrude and immerse from one side to the other side. When part reaches the installation position of the cutter, said cutter projecting to form a cut in one end portion of the over tape.

A blade receiver may be installed on the other side of the over tape moving path so as to face the cutter, and the protrusion amount of the cutter may be regulated by the blade receiver and a surface of one end of the over tape may be supported.
A position detection device is installed on the upstream side of the cutter, and when the position detection device senses one end of the over tape, the cutter protrudes toward the other side of the over tape moving path, and the side end of the bag is Before reaching the cutter, the cutter may retreat from the movement path of the over tape.

According to the first aspect of the present invention, an opening cut can be automatically formed at one end of the over tape covering the bag mouth portion with the cut tape interposed therebetween, and as a result, located between the cuts. If the end of the cut tape is pinched and pulled, the over tape can be easily torn and opened.
According to the second and third aspects of the invention, it is possible to surely form a cut with an accurate dimension at a stable position of the over tape.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, the bag 1 sealed with the taping device of the present invention is made of kraft paper, laminated paper, etc., the bag mouth portion is folded back, and the over tape 2 is pasted on the outer surface over the entire length in the width direction. It is.
The over tape 2 is formed by applying an adhesive to the back surface of a paper tape and mounting the cut tape 3 in parallel with the center line on one side of the center line on the back surface. Then, the over tape 2 is folded in half, and the upper and lower end portions of the bag 1 are covered with heat from above.

One end portion of the over tape 2 protrudes from one side end of the bag 1, and a cut 4 is formed on the side end portion of the protruding portion on the upper and lower sides with the cut tape 3 interposed therebetween. Accordingly, when one end of the cut tape 3 positioned between the cuts 4 is pinched and pulled to the other end, the over tape 2 is cut.
The cut tape 3 is disposed so as to coincide with the open end of the bag 1, and when the over tape 2 is torn along the cut tape 3, the open end of the bag 1 is exposed.

As shown in FIG. 3, the bag taping device 5 of the present invention includes a transport device 6 for transporting the bag 1 in an upright state, and a bag sealing device 7 installed on the upstream side and the downstream side of the transport path of the transport device 6. And a notch forming device 8.
As shown in FIGS. 2 and 3, the conveying device 6 includes a pair of endless carrier chains 9 that convey the upper portion of the bag 1 from both the front and rear sides, and a conveyor 10 that supports the bottom of the bag 1.
The pair of carrier chains 9 are driven by a motor 11 and guided by a chain guide 12 disposed along the longitudinal direction of the taping device 5 so as to rotate in parallel with each other and reversely. Further, the opposing long sides of the carrier chain 9 are moved in the same direction in proximity to each other, and a holding piece 13 for holding the bag 1 is attached to the outer peripheral surface of the carrier chain 9.
And the upper part of the bag 1 filled with the contents is fed between the front and rear carrier chains 9, and the conveying device 6 moves the bag 1 along the width direction with one side end directed downstream. Transport continuously.

The bag sealing device 7 includes a folding mechanism 14 that folds the upper end portion of the bag 1, and a taping mechanism 15 that is installed on the downstream side of the folding mechanism 14.
In the folding mechanism 14, a line is formed by a roller along the folding position of the bag 1, and the line is folded by a folding homer from this line.
The taping mechanism 15 includes a tape support portion 16 that rotatably supports the over tape 2 wound in a roll shape, and a mounting portion 17 that covers the bag mouth portion from which the over tape 2 pulled out from the tape support portion 16 is folded back from above. The cutting mechanism 18 that cuts the over tape 2 that covers the bag mouth, the heater 19 that heats the over tape 2 that covers the bag mouth from the front and the back, and the pressure bonding that presses the heated over tape 2 against the bag 1 And a roller 20.

As shown in FIG. 4 and FIG. 5, the mounting portion 17 is covered with a guide frame 21 having an inverted U-shaped cross section that is open at the bottom for guiding the folded bag mouth portion, and an outer surface of the guide frame 21 with a gap. And an outer frame 22 having an inverted U-shaped cross section.
When the transport device 6 transports the bag 1, the over tape 2 pulled out from the tape support portion 16 is pulled between the guide frame 21 and the outer surface frame 22, bent to a half width, and passed through the guide frame 21. It is designed to be discharged over the outer surface of the mouth.
The over tape 2 is placed so as to coincide with the opening end of the bag mouth portion where the cut tape 3 attached to the back surface of the over tape 2 is folded.

The cutting mechanism 18 is provided on the downstream side of the discharge port of the mounting frame 17, and as shown in FIG. 6, an oscillating blade that swings so as to cross the movement path of the over tape 2 that covers the bag port portion of the bag 1. 23.
When the detection device installed on the upstream side of the swing blade 23 detects the passage of the bag 1, a signal is transmitted from the detection device to the drive mechanism of the swing blade 23, and the swing blade 23 swings and the over tape 2 is moved. Is cut to a predetermined length.
The cutting position by the oscillating blade 23 is set so that one end portion of the over tape 2 protrudes from the side end of the bag 1.

The transport device 6 transports the bag 1 with the protruding one end of the over tape 2 facing downstream, and sends the bag mouth covered with the over tape 2 between the front and rear heaters 19.
As shown in FIG. 2, the heater 19 sandwiches and heats the over tape 2 from the front and rear sides, and the pressure roller 20 installed on the downstream side presses the surface of the over tape 2 so that the over tape 2 is removed from the bag 1. Heat-sealed.
Since the structures and operations of the transport device 6 and the bag sealing device 7 described above are almost the same as those of the conventional device, they are not shown in detail.

As shown in FIGS. 7 and 8, the incision forming device 8 is installed on the upper and lower sides with the cut tape 3 between the position detection device 24 for detecting the position of the over tape 2 and slightly downstream of the position detection device 24. The two cutters 25 are provided.
The cutter 25 is attached to a substrate 27 provided at the tip of an entry / exit operation device 26 such as an air cylinder.
The entry / exit operation device 26 is installed on one side of the movement path of the overtape 2, and when the entry / exit operation device 26 is driven, the cutter 25 protrudes / immerses from one side to the other side across the movement path of the overtape 2. It is like that.

On the other side of the movement path of the over tape 2, a blade receiver 28 is installed facing the cutter 25. The surface of the blade receiver 28 is in contact with the moving path of the over tape 2 and supports the over tape 2 being conveyed. Further, the blade receiver 28 is formed with a slit for receiving the protruding cutter 25.
When the entrance / exit operation device 26 is driven and the substrate 27 and the cutter 25 protrude, the substrate 27 comes into contact with the blade receiver 28, and the protruding amount of the cutter 25 is regulated.

The blade edge of the cutter 25 is inclined so as to approach the blade receiver 28 toward the downstream side. When the substrate 27 comes into contact with the blade receiver 28, the blade edge of the cutter 25 completely crosses the moving path of the over tape 2. It is like that.
Further, the upstream end portion of the facing surface of the blade receiver 28 and the substrate 27 is a tapered surface that is closer to the moving path toward the downstream side so that the over tape 2 covering the bag mouth portion can easily enter therebetween.

When the position detection device 24 detects one end of the overtape 2 of the bag 1 to be conveyed, the entrance / exit operation device 26 is activated, the substrate 27 and the cutter 25 protrude, the substrate 27 comes into contact with the blade receiver 28, and the cutter 25 The cutting edge crosses the moving path of the over tape 2.
As the bag mouth portion of the bag 1 to be transported and the over tape 2 covering the bag mouth pass between the substrate 27 and the blade receiver 28, the cutter 25 cuts into one end portion of the over tape 2 toward the downstream side. 4 is formed.

Since the cutter 25 is disposed on the upper and lower sides of the cut tape 3, the cuts 4 are formed vertically with the cut tape 3 interposed therebetween as shown in FIG. 1.
Then, before the side end of the bag 1 reaches the cutter 25, the entrance / exit operation device 26 returns to the original position, and the cutter 25 is retracted from the moving path of the over tape 2, so that the cut 4 reaches the side end of the bag 1. Do not be short.
Thus, the taping of the bag 1 is completed, and the transport device 6 discharges the bag 1 from the taping device.

The principal part perspective view of a bag. The principal part sectional drawing of the taping apparatus of the bag which shows the Example of this invention. The side view of the taping apparatus of the bag which shows the Example of this invention. The side view of a mounting frame. Sectional drawing of a mounting frame. The front view of a cutting mechanism. The principal part enlarged side view of the taping apparatus of the bag which shows the Example of this invention. The principal part enlarged plan view of the taping apparatus of the bag which shows the Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bag 2 Over tape 3 Cut tape 4 Cut 5 Bag taping device 6 Conveyance device 7 Bag sealing device 8 Cut forming device 9 Carrier chain 10 Conveyor 11 Motor 12 Chain guide 13 Holding piece 14 Folding mechanism 15 Taping mechanism 16 Tape support part 17 Mounting frame 18 Cutting mechanism 19 Heater 20 Pressure roller 21 Guide frame 22 Outer frame 23 Oscillating blade 24 Position detection device 25 Cutter 26 Entrance / exit operation device 27 Substrate 28 Blade holder

Claims (3)

  The apparatus comprises: a conveying device that conveys the bag in an upright state; and a bag sealing device and a notch forming device that are respectively installed on the upstream side and the downstream side of the conveying path of the conveying device. Fold the part over and attach the over tape with the cut tape attached to the back so that it covers the bag mouth from both sides, and cut the over tape so that one end protrudes from the side edge of the bag. The conveying device feeds the bag from the bag sealing device to the notch forming device with the protruding portion of the over tape facing downstream, and the notch forming device has the over tape on the upper and lower sides sandwiching the cut tape. It has two cutters installed so that it can protrude and immerse from one side to the other side across the moving path of the tape, and one end of the over tape is at the installation position of the cutter The time, the bag taping apparatus characterized in that the cutter which projects to form a cut in one end portion of the over tape.   The blade holder is installed on the other side of the movement path of the over tape so as to face the cutter, and the protruding amount of the cutter is regulated by the blade receiver, and the one end surface of the over tape is supported. The bag taping device described. A position detection device is installed on the upstream side of the cutter, and when the position detection device senses one end of the over tape, the cutter protrudes toward the other side of the movement path of the over tape, and the side end of the bag is The taping device for a bag according to claim 1 or 2, wherein the cutter retracts from the movement path of the over tape before reaching the cutter.