JPH0741900B2 - Automatic seal bundling machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an automatic seal binding machine for sealing the opening side of a packaging bag and forming a fan-shaped fold on the opening side.

2. Description of the Related Art As a packaging bag binding machine, there is an automatic fan folding binding machine that forms a fan-shaped fold on the upper portion of the packaging bag to perform packaging. This automatic binding machine stores a product in a packaging bag, forms a fold portion on the opening side of the packaging bag after sealing the opening side,
This is a device for forming a fan-shaped fold portion on a packaging bag by binding the base portion of the fold portion with a binding member such as a wire. Various types of automatic machines for forming fan-shaped folds in a device bag have been known (Japanese Utility Model Publication 56-24163 and Japanese Patent Publication 55-22335).
There is also known a device for simultaneously suspending a ribbon when binding the folds with a binding member (Japanese Patent Publication No. 17693/1988).

(Problems to be Solved by the Invention) By the way, the above-mentioned conventional automatic bundling machine is one in which products such as confectionery are stored in a packaging bag, and the opening side of the packaging bag is sealed in advance and then applied to the device. The seal is made by another device. It is extremely convenient in terms of work efficiency if the packaging bag can be sealed and fan-folded at the same time, but the folding mechanism is composed of a rather complicated mechanism, and it is not possible to attach a packaging bag sealing mechanism to a conventional automatic binding machine. It was difficult.

It should be noted that there is also provided a conventional device which is capable of continuously and automatically performing the packaging bag sealing process and the fold forming process. In this device, a sealing device and an automatic binding machine are installed in parallel, and a bag is conveyed from the sealing device to the binding machine to perform sealing and fold formation. Therefore,
This device has a problem that the whole device becomes large, and a device such as a mechanism for controlling the posture of the bag is attached for automation, so that the device has to be complicated. Further, since there are a great variety of products targeted by this packaging device, there is a problem that it is not efficient to use for packaging a small lot of products in accordance with these products.

Therefore, the present invention has been made to solve the above problems, and an object of the present invention is to incorporate a mechanism for sealing a packaging bag into an automatic binding machine for the packaging bag to seal the packaging bag and fan-fold it. It is an object of the present invention to provide an automatic seal binding machine configured so as to be easily performed in one stage.

(Means for Solving the Problems) The present invention has the following configuration in order to achieve the above object.

That is, a fan that heat-seals the opening of the packaging bag in which products such as confectionery are stored, and one end side of the packaging bag that is folded into a pleated shape and binds the base of the fold with a binding member such as a wire. An automatic seal bundling machine having a folding part, wherein the sealing part is provided with sealing members facing each other vertically so as to pinch the opening of the packaging bag, and in the fan folding part,
One bellows-shaped strip arranged to face each other vertically and an opening / closing mechanism that opens and closes the rudder belly of the rudder-belt-shaped strip left and right at a contracted position and an open position, and opens and closes the rudder-belt-shaped strip vertically. A drive mechanism for contacting and separating is provided, and the seal portion is arranged at a height position sandwiched by the upper and lower rubbing belly strips, and the forward position and the rudder belly on the rudder belly strip in a planar arrangement. It is characterized in that a moving mechanism for moving between the retracted position retracted from the above-mentioned rudder abdominal band position when fan-folding by the band is provided.

(Operation) In the binding device by the automatic seal binding device according to the present invention, first, the seal portion at the upper and lower intermediate position of the rudder belly belt is moved from the retracted position to the forward position in the state where the rudder belly belt is opened vertically. It is moved by the moving mechanism, and the opening of the packaging bag is pinched by the sealing member at a position on the rudder-belt-shaped belt in a planar arrangement to be heat-sealed. Then, after the seal portion is retracted to the retracted position by the moving mechanism, the drive mechanism fits the upper and lower rudder belly strips vertically while sandwiching the packaging bag, and the opening mechanism holds the rudder belly strips. Shrink left and right to form folds. After the folds are formed, the binding portions are used to tie the bases of the folds together to perform fan folding.

(Examples) Hereinafter, preferred examples of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1, FIG. 2 and FIG. 3 are a front view, a plan view and a side view showing a configuration of a seal section and a fan folding section of an automatic seal binding machine according to the present invention.

This device is provided with a fan-folding part and a sealing part in the same device. A sealing part is provided between a pair of rudder-belt-shaped strips forming a fold in the packaging bag to seal the packaging bag and fan-fold it. The feature is that it can be performed in one stage. "Folding" means forming a fold in the packaging bag and binding the fold near the base with a binding member such as a wire to form a fold in the shape of a fan on the top of the packaging bag. Is the meaning.

First, the structure of the seal portion will be described. First
In the figure, 10a and 10b are sealing members formed in a rectangular rod shape, and are arranged so as to face each other vertically with a space for inserting the packaging bag. Reference numeral 12 is a support member fixed to the rear portion of the lower seal member 10b. A pressing support member 14 supports the upper seal member 10a and fixedly supports the upper portion of the seal member 10a.
The pressing support member 14 is connected to the support member 12 as described later,
The support member 12 is connected to a mechanism that supports the entire seal members 10a and 10b and moves the seal members 10a and 10b back and forth. 16a and 16b are guide rods that slide the support member 12 back and forth to guide the support member 12.
Insert into 12 and erected horizontally in the front-back direction.

Reference numeral 18 is a transfer cylinder that is connected to the support member 12 and moves the support member back and forth. In FIG. 1, the end surface of the moving cylinder is visible.

Reference numeral 20 is an adjustment knob that adjusts the front-rear position of the support member 12 to adjust the sealing position on the packaging bag. The adjustment knob 20 supports both ends of the support plate 21 fixed to the rear side surface of the support member 21 on the frame body, and inserts the knob shaft 20a of the adjustment knob into a long hole formed at a supporting position with the frame body. The support member 12 supports the back and forth movement within the range of the long hole. By changing the mounting position of the support plate 21 with respect to the frame, the seal members 10a, 1
Set the position of 0b in the front-rear direction to make the sealing position on the packaging bag variable.

FIG. 2 shows a state in which the support members 12 and the pressing support members 14 are advanced by being guided by the guide rods 16a and 16b while the seal members 10a and 10b are on the front side, that is, in the seal position.

In FIG. 3, 22 is a rod for guiding the vertical movement of the pressing support member 14, the upper end of which is inserted into the pressing support member 14 and the lower end of which is fixed to the support member 12. A pressing cylinder 24 drives the pressing support member 14 up and down. The upper seal member 10a is biased by the spring and returns to its original position.

The seal members 10a and 10b are to seal by heating,
Heaters 26a and 26b are arranged on the rear side surfaces of the seal members 10a and 10b. The seal members 10a and 10b, the support member 12, and the pressing support member 14
A heat insulating material is interposed between and to prevent heat from escaping to the support member side.

Next, the structure of the fan-folded portion will be described.

In FIG. 1, 28a and 28b are movable arms that support both ends of the lower rudder belly belt, and 30a and 30b are movable arms that support both ends of the upper rudder belly belt. The seal members 10a and 10b are located between the upper and lower rubbing belly belts 31, and the seal member 10a
When a and 10b are advanced to the seal position, they are almost at the same position as the lower rudder belly band. 32a is a movable arm 28
Guide rods for sliding and opening and closing a and 28b in the lateral direction, and reference numeral 34a are guide rods for sliding and opening and closing the movable arms 30a and 30b, both of which are provided horizontally on the frame.

Reference numeral 40 is a cylinder that is connected to an arm to be described later and opens and closes the rudder belly belt. The cylinder rod of the cylinder 40 moves back and forth horizontally, and the arm 42 horizontally arranged on the cylinder rod.
The base ends of a and 42b are connected. The base ends of the arms 42a and 42b are rotatably engaged with the cylinder rod. Reference numerals 44a and 44b are connecting arms that link-engage with the other ends of the arms 42a and 42b.
The arms 42a, 42b and the connecting arms 44a, 44b are link-engaged with each other in a W shape in a plan view, the intermediate portions of the connecting arms 44a, 44b are pivotally supported by the frame body, and the cylinder rods of the cylinder 40 are projected and inserted. The tips of the connecting arms 44a and 44b are opened.

Support rods 46a and 46b are erected at the tips of the connecting arms 44a and 44b, and the movable arms 28a and 28b are attached to the support rods 46a and 46b.
Are connected. The cylinder 40, the arms 42a and 42b, the connecting arms 44a and 44b, the support rods 46a and 46b, etc.
An opening / closing mechanism for opening and closing the rudder belly of the right and left is configured.

In FIG. 3, reference numeral 31a is a rudder-belt-shaped band retainer provided at the front end of the movable arm 30a. Reference numeral 31b is an insertion rod that is inserted through the rudder belly band, and acts as a guide when the rudder belly band is opened and closed.

The upper bellows-shaped strip of the pair of upper and lower rudder belly-shaped strips is configured to rotate up and down. In FIG. 3, reference numeral 50 denotes an opening / closing cylinder for rotating the movable arm 30a, and the rear end of the vertically moving arm 52 is ring-engaged with the cylinder rod of the opening / closing cylinder 50. An intermediate portion of the vertical movement arm 52 is axially supported by a frame by a shaft 54, and the guide rod 34 is attached to the vertical movement arm 52.
Place a horizontally. By operating the opening / closing cylinder 50, the vertical movement arm 52 rotates about the shaft 54, and thereby the upper rudder belly belt moves up and down. The opening / closing cylinder 50, the vertical movement arm 52, and the like constitute a drive mechanism that vertically opens and closes the rudder belt-shaped band member to contact and separate it.

The configuration and operation of the rudder belly strip at the fan-folding portion are basically the same as those of the conventional fan-folding device.

Further, FIGS. 2 and 3 schematically show the binding mechanism of the packaging bag. In the figure, reference numeral 60 denotes a twisting piece having a lower end formed in an S shape and twisting and binding the wire. The twisting piece 60 is a seal member
The torsion arm 60 is supported by a support arm 62 extending from the upper side of 10a, 10b to the front side, and is connected to a driving unit that rotates the twisting piece 60 around an axis. After the wire is supplied from the feeder and cut to a predetermined length, it is applied under the packaging bag with the folds and bent into a U shape, and the wire is hooked on the twisting piece 60 and twisted. To be tied up.
This binding mechanism is also similar to the conventional example.

Next, the operation of the above embodiment will be described. As described above, this device is configured so that the sealing part and the fan-folding part of the packaging bag can be performed in one stage. First, after sealing the opening side of the packaging bag, the fan-folding can be performed at the same position.

At the time of sealing, the seal members 10a and 10b advance to the front side, and the upper rudder belt-shaped band stops at the position rotated upward. The packaging bag 70 is inserted into the gap between the seal members 10a and 10b, and the seal member is inserted by the press cylinder 24 through the press support member 14.
10a and 10b are pressurized and sealed.

After sealing, the moving cylinder 18 operates and the sealing member 10
The a and 10b move to the retracted position from the rudder belt 31 and stop.

In this state, the opening / closing cylinder 50 is operated, the vertical movement arm 52 is rotated, and the upper and lower rubbing belly strips are vertically fitted with the packaging bag interposed therebetween.

Next, the cylinder 40 is actuated, and the cylinder rod is projected in FIG. 3 to close the movable arms 28a and 28b face-to-face via the arms 42a and 42b and the connecting arms 44a and 44b. Since the movable arms 30a and 30b are located on the inner side surfaces of the movable arms 28a and 28b, the movable arms 30a and 30b are closed simultaneously with the movable arms 28a and 28b. That is, the upper and lower rudder-belt-shaped strips fold the packaging bag in a corrugated form and compress it by applying pressure from both sides to form a fold portion on the packaging bag.

When the rudder abdominal band is contracted to form the fold, the base of the fold is tightly bound by the binding mechanism as described above. By releasing the pressure on the rudder belt and removing the packaging bag, a fan-shaped fold is formed on the packaging bag.

In this way, the sealing and fan folding of the packaging bag can be performed as a continuous operation.

Depending on the product, the sealing position may be different, such as one that seals at the extreme end of the opening side or one that you want to seal near the fan-shaped base so as not to create a space in the packaging bag. Set the seal position appropriately and use it.

Further, in the case of printing the manufacturing date, it is also easy to attach a known printer to a part of the heat-sealing portion and print the required characters at the same time when the heat-sealing is performed.

Furthermore, a device for suspending a decorative material such as a ribbon at the same time when binding with a wire or the like can also be attached by using a conventional layer.

FIG. 4 shows the overall construction of the automatic seal binding machine of this embodiment. In the figure, reference numeral 80 is a base portion that incorporates various drive mechanisms, and 82 is an operation portion that incorporates a seal portion, a fan-folding portion, and the like. Operation part
The front surface of 82 is open, and the seal portion and the fan-folded portion are located on the front side. Reference numeral 84 is a feeder for supplying a binding member such as a wire, and 86 is for cutting the supplied wire to
It is a binding portion that is bent into a letter shape and is bound by the twisted piece. Hold the packaging bag in your hand and place the opening side of the packaging bag in the operation section.
By inserting it slightly from the front surface of 82, a seal and a fan-fold are made.

As described above, the binding device according to the present embodiment is extremely compact and has no mechanical system, and does not have a transport mechanism, regardless of the fact that it incorporates the sealing portion and the fan-folding portion of the packaging bag. This simplifies the device. Also,
Since fan-folding can be performed while heat-sealing and remaining heat, there is an advantage that the press effect at the time of forming the folds is high, the folds can be clearly formed, and the cosmetic effect is improved.

Although the present invention has been variously described above with reference to the preferred embodiments, the present invention is not limited to these embodiments.
Of course, many modifications can be made without departing from the spirit of the invention.

(Effects of the Invention) As described above, in the automatic seal bundling machine according to the present invention, since the sealing portion and the fan-folding portion of the packaging bag are provided in one stage, the sealing of the packaging bag and the fan-folding can be performed at the same position. A device with good workability can be provided. Further, this device is easy to operate, and since there is no carrying step, the operation time can be shortened and the work efficiency can be improved. Also,
Since there is no movement of the bag after sealing, there is no misalignment, and it is possible to achieve a beautiful symmetrical left and right folding.

[Brief description of drawings]

1, 2 and 3 show a front view, a plan view and a side view showing an embodiment of a seal portion and a fan-folding portion of an automatic seal binding machine according to the present invention, and FIG. It is a perspective view shown. 10a, 10b ... Sealing member, 12 ... Supporting member, 16a, 16b ... Guide rod, 18 ... Moving cylinder, 20 ... Adjusting knob, 24 ... Pressing cylinder,
26a, 26b ... Heater, 28a, 28b, 30a, 30b ... Movable arm, 31 ... Rudder belt-shaped band member, 31a ... Rudder plate-shaped band member, 31b
…… Insertion rod, 40 …… Cylinder, 50 …… Cylinder for opening and closing, 60 …… Twisting piece, 70 …… Packing bag, 82 …… Operating section, 84
…… Feeder, 86 …… Bondage section.

Claims (1)

[Claims] 1. A seal portion for heat-sealing an opening of a packaging bag in which a product such as a confectionery is stored, and one end side of the packaging bag, which is sealed, is folded into a fold shape, and the base of the fold portion is a binding member such as a wire. An automatic seal bundling machine having a fan-folding part for binding, wherein the seal part is provided with sealing members facing each other vertically so as to pinch the opening of the packaging bag, and the fan-folding part is arranged vertically. A pair of bellows-shaped strips arranged to face each other, an opening / closing mechanism that opens and closes the rudder belly of the rudder-belt-shaped strip left and right at a contracted position and an open position, and the rudder-belt-shaped strip is opened and closed up and down to contact and separate. A drive mechanism is provided for arranging the seal portion at a height position sandwiched between the upper and lower rudder belly strips, and a forward position on the rudder belly strip in a planar arrangement and the rudder belly strip. Moves between the retracted position that retracts from the position above the rudder belt when folding in fan Automatic seal binding machine, characterized in that a moving mechanism for.