JPH03187804A - Method and apparatus for inserting commodity into bag - Google Patents

Abstract

PURPOSE:To insert and charge a commodity reliably and easily into a bag by inserting a drawing pen-shaped member of an opening guide means into the open edge of the bag, advancing a commodity and inserting it into the bag while opening the drawing pen-shaped member. CONSTITUTION:An opening guide means 64 is advanced by allowing a driving piece 68 to advance in the interior of a guide hole, while a commodity inserting means 74 is being set on the opening guide means, and an inclined wall 71 and a drawing pen-shaped member 72 are thereby positioned within the open edge 3 of a bag 1. Accordingly, the open edge 3 of the bag is kept in an opened state by the drawing pen-shaped member 72. Thereafter, when a driving cylinder 80 is actuated and the commodity inserting means 74 is advanced, a commodity 31 is inserted into the bag 1 while being pushed forward by an insertion driving member 76 in the state that the commodity is set on a setting part. In this case, the drawing pen-shaped member 72 is pushed up by the advancing commodity 31 to permit the commodity 31 to pass therethrough.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and an apparatus for inserting a product into a bag provided with a bendable sealing piece for sealing an opening.

[Conventional technology and issues]

Conventionally, after a product is inserted into a bag, the opening of the cough bag is sealed.

By the way, since the two-bag body has a flat shape, usually consisting of one front and back film parts, it is necessary to intentionally open the opening of the bag body when inserting the product.

Regarding this point, the current state of the art in the prior art is to manually open the opening of each bag, which poses a problem in that efficiency is not improved.

On the other hand, automatic packaging equipment has been proposed in which the bag is opened using air jetted from an air nozzle, but the opening of each bag vibrates while receiving the air jet, and the opening of the bag is not maintained in a stable opening state. The problem is that you can't get it.

[Means to solve the problem]

The present invention provides a method and device for inserting a product into a bag which solves the above problems.

Therefore, the method according to the present invention is configured as a means in which a product is inserted into a bag provided with a bendable closure piece for sealing an opening, and the closure piece of the bag body is held. a step of advancing an opening guide means that can move forward and backward with respect to the opening of the bag body, and opening the opening edge of the bag body by inserting a bird mouth member of the opening guide means into the opening edge of the bag body; The method comprises the steps of: advancing a product insertion means for advancing the product, causing the advancing product to open the coracoid member, and inserting the product into the bag through the coracoid member.

In addition, the apparatus according to the present invention is configured as a means in an apparatus for inserting a product into a bag body having a bendable sealing piece for sealing an opening: a holder for holding a sealing piece of a bag body; With means.

The opening guide means is composed of an opening guide means that can move forward and backward with respect to the opening of the bag, and a product insertion means that advances the product relative to the opening of the bag.

A coracoid member that can be opened and closed and forms a tip when closed;
The product insertion means comprises an insertion drive member that inserts the product into the bag through the opened coracoid member by forcibly advancing the product.

The product insertion means can further be configured to place the product and move forward and backward with respect to the opening of the bag, and in this case,
An insertion drive member is provided for inserting the product into the bag through the coracoid member opened by forcibly moving the product forward, and the insertion drive member hits the bottom of one bag to forcibly remove the bag from the holding means. It is possible to provide a forced advance means for separating and advancing together.

〔Example〕

Preferred embodiments of the present invention will be described in detail below based on the drawings.

[Bag structure and product packaging method]

As shown in FIGS. 14 to 17, the bag l used in the present invention is made by folding and polymerizing, for example, two strip-shaped synthetic resin films in half at the bag bottom 2. A sealing piece 4 is further extended, and the half-folded and polymerized film is melted and welded at intervals in the longitudinal direction of the band, thereby forming a bag 1 with both side edges 5 and 6 welded.

The band-shaped synthetic resin film is provided with adhesive means 7 in advance on the surface of the film portion located on the opposite side of the sealing piece 4, and the adhesive means 7 includes an adhesive layer 8 made of double-sided adhesive tape or the like, It consists of a release sheet 9 covering an adhesive layer 8. The sealing piece 4 further includes an extended holding piece 10,
A hole is provided in the holding piece 1O through which a holding rod 11 (described later) can be inserted, and the holding piece 10 and the sealing piece 4 are configured to be easily separated via a separation line 12 such as a perforation or a groove line. There is. Therefore, such a bag l is easy to make and is inexpensive.

When loading products into the bags 1, as shown in FIG. The edge 3 is opened, and the product is inserted and loaded into the bag l using a product insertion device, which will be described later. After loading the goods.

The bag 1 is pulled in the direction of the bottom 2, and while the holding piece IO is held on the holding rod 11, the separation line 12 is separated, and the bag 1 with the nine separated sealing pieces 4 is transferred onto a conveyor, which will be described later. be transferred to

When the bag l is transported by a conveyor.

As shown in FIG. 15, the M-shaped sheet 9 is peeled off from the adhesive layer 8. This peeling operation can be easily performed using an air nozzle as described below.

Subsequently, the bag 1 being transported has its sealing piece 4 erected as shown in Figure 16. This raising operation can be easily performed by transporting the bag along a raising guide as described later. In the example shown in FIG. 9, the step of raising the sealing piece 4 (FIG. 16) is shown after the step of peeling off the release sheet 9 (FIG. 15), but the order of the two steps may be reversed.

Thereafter, as shown in FIG. 17, the sealing piece 4 is bent from the upright position to a prone position, and the sealing piece 4 is adhered to the adhesive layer 8. This work.

This can be easily carried out using a sealing means as described below.

[Configuration of product packaging equipment]

(Transportation mechanism) Although not shown in FIG.
A conveyor is installed below.

The conveyor has an endless body wrapped around a driving wheel that is driven and rotated and a driven wheel that is idled.

Drive pieces 14 are provided at intervals in the circumferential direction of the endless body. The drive piece 14 is made to protrude upward from the transport window hole 15 of the transport table 13, and
run on top.

A transport window hole 15 is provided on the transport start end side of the transport table 13.
A receiving wall 16 in plan view installed across the wall is erected, and the receiving wall 16 is used to hold the bag body 1 which is slid down from the working area, which will be described later.
It includes a receiving wall part 16a that receives the bottom of the bag l, and a guide wall part 16b that is parallel to the side edge of the bag l.

As shown in the third figure, a support plate 17 is fixed on the transfer table 13 near the receiving wall 16a, and the support plate 17
The tip end of 7 faces into the conveyance window hole 15. For this reason, the drive piece 14 has a notch 14a so as to pass through the support plate 17. *A guide plate 1 is disposed on the transport table 13 and faces the support plate 17 across the transport window hole 15.
8 is provided, and the guide plate 18 is tilted upward toward a working section to be described later.

As shown in the first diagram, the conveyance table 13 includes a conveyance guide 1 extending from the receiving wall portion 16a toward the conveyance end direction.
9, and is supported by a support body 20 so that the conveyance guide 19 can be adjusted to move forward and backward toward the conveyance window hole 15.

At the end of the transport table 13 (the end of the transport window hole 15), a special section 21 is further provided by extending the table.

(Product Insertion Device in Working Section) As shown in FIGS. 1 to 6, on the side of the transport start end of the transport table 13, there is a working section for inserting and loading products into the waiting bag 1. 60 are arranged. This work section 60 includes a work table 61 installed horizontally or on a gentle slope.

A bag mounting table 62 is provided which faces the transport table 13 at a steep slope from the work table 61.

As shown in the second figure, the bag mounting table 62 is equipped with the above-mentioned holding rod 11 and stacks a large number of nine bags l, and has a holding guide 63 along one side of the bag l. Be prepared.

The work table 61 is arranged so as to overlap the bag body ifator table 2 so as to cover the sealing piece 4 of one bag body 1 from above. An opening guide means 64 is placed on the work table 61 so as to be movable forward and backward. For this purpose, the second work table 6E is provided with a pair of guide rails 65,65.

The opening guide means 64 has a bottom wall 66 and side walls 67.67 standing on both side edges of the bottom wall 66.
67 is the guide rail 65, 65 of the work table 6I.
It can be slid freely along the In order to move the opening guide means 64 forward and backward, a driving piece 6 extending downward is provided on the bottom wall 66.
8 is provided, and a drive cylinder 69 is connected to the drive piece 68. Incidentally, the driving piece 68 is inserted into a guide hole 70 of the first work table 6E.

Further, the opening guide means 64 has inclined walls 71 and 71 that are sharply pointed with respect to the bottom wall 66 at the tips of the two side walls 67 and 670, and a coronoid piece 72 that is generally parallel to the inclined walls 71. This coracoid piece 72 is connected to the bar 7 installed on both side walls 67, 67.
3, the bar 73 is pivotably attached to the
They are arranged in multiple rows at intervals. That is.

These coracoid pieces 72 normally have their tips abutted against the bottom wall 66 due to their own weight and are positioned parallel to the inclined wall 71, but are freely rotatable in the upward direction. In addition, the coracoid piece 72 is pivotally attached via a hinge means or the like so as to be able to flip up as described above.

The material of the coracoid piece 72 itself may be a spring plate or an elastomer piece, so that it can be freely opened to the bottom wall 66.

On the bottom wall 66 of the opening guide means 64 there are side walls 67.6.
A product insertion means 74 that can move forward and backward is placed between 7 and 7. This product insertion means 74 is.

A drive piece 77 that extends rearward and hangs downward, and includes a product placement section 75 whose tip edge constitutes a forced advance means 75a, and an insertion drive member 76 that stands up at the rear end of the product placement section 75. has been established. In order to enable the product insertion means 74 to move forward and backward, the drive piece 77 is inserted into sliding holes 78 and 79 opened in the bottom wall of the product guide means 64 and the work table 61. It is connected to a drive cylinder 80. A stopper piece 81 is provided upright on the rear side of the insertion drive member 76 of the product insertion means 74.

Further, as shown in the first figure, an air nozzle 82 is disposed above the second work table 61 and facing the opening edge 3 of the bag l.

To explain the method of inserting a product into two bags 1 with the above configuration, as shown in the third figure, the uppermost bag 1 on the first bag placement table 62 is opened by air jet from the air nozzle 82. The edge 3 can be opened.

Therefore, the product 31 is placed on the product placement section 75 of the product insertion means 74.
With the drive cylinder 6 mounted, as shown in the fourth figure,
9 to move the opening guide means 64 forward. The opening guide means 64 moves forward by moving the drive piece 68 forward within the guide hole 70 while placing the product insertion means 74 thereon.

The inclined wall 71 and the coracoid piece 72 are positioned within the opening edge 3 of the bag body 1. Therefore, the opening edge 3 of one bag is kept open by the coracoid piece 72.

Thereafter, as shown in Figure 5, the drive cylinder 80 is actuated to advance the product insertion means 74.

The product 31 is inserted into the bag 1 while being pushed by the insertion drive member 76 while being placed on the placement portion 75 . At this time, the coracoid piece 72 is flipped up by the advancing product 31 and allows the product 31 to pass through.In the state shown in FIG. 2, and at this time, the insertion drive member 76 is located below the bird's mouth piece 72.

Subsequently, as shown in FIG. 6, the drive cylinder 80 continues to operate, and the product insertion means 740 forced advance means 75a forcibly advances the bottom portion 2 of the bag body 1. As a result, the separation line 12 of the bag 1 is forcibly separated, and the bag 1 is released from the holding rod 11 and moves forward. Since the product insertion means 74 is suddenly stopped by contacting the stopper piece 81 with the bar 73, the product 31 and the bag body 1 are moved forward due to inertia.
moves forward away from the product insertion means 74, and! Feeding table 1
He is forced to slide down towards 3.

Furthermore, after that, the drive cylinder 69.80 is moved back,
The product insertion means 74 and the opening guide means 64 are returned to their original positions, and the same operations as described above are repeated thereafter.

(Transportation Posture Control Mechanism) The bag l that has been slid down from the working section 60 hits the receiving wall 16 and stops as shown in the first figure.

It is placed across the support plate 17 and the guide plate 18.

When the drive piece 14 of the conveyor hits the side edge of the bag 1 and starts transporting the bag 1, one bag 1 is caused to pass through the transport attitude control mechanism 32.

As shown in FIG. 7, this mechanism 32 includes a support rod 33 fixedly supported by the receiving wall 16, a pair of brackets 34, 34 suspended from the support rod 33, and a pair of brackets 34, 34 suspended from each bracket 34. The pair of elastic members 35.35 are arranged on both sides of the transport window hole 15, and the tips of the elastic members 35.35 are brought into contact with the surface of the transport table 13. They are kept close together.

Therefore, the bag 1 to be transported is transported by the pair of elastic members 35.
The material is conveyed on the conveyance table 13 through elastic deformation of the elastic member 35, and its posture is controlled when passing between the elastic material 35 and the conveyance table 13.

The bottom of the bag 1 is placed along a conveyance guide 19.

(Release sheet peeling mechanism) The bag l that is subsequently conveyed is passed through a release sheet peeling mechanism 36 as shown in the first figure. As shown in FIGS. 1 and 8, this peeling mechanism 36 includes an air nozzle 37 that opens toward the side of the release sheet 9 from near the surface of the bag l on the transport path of one bag, The air nozzle 37 receives compressed air from an air pump (not shown).

The release sheet 9 of the bag l being conveyed passes through the air nozzle 37.
detection means 38 for operating the air pump when approaching
is provided. As shown in FIG. 8, the detection means 38 includes a light-emitting element 38a arranged above the sealing piece 4 at the air pump operation start position, and a light-emitting element 38a arranged below the conveyance table 13 opposite to the light-emitting element. It consists of a light-receiving element (not shown) and a hole 38b of the transport table 13, which constitutes an optical path for the light-emitting element.

When the sealing piece 4 of the transported bag body 1 closes the hole 38b, a signal is output and the air pump is activated.

Therefore, air continues to be ejected from the air nozzle 37 until the sealing piece 4 of the bag body 1 being conveyed closes the hole 38b and then passes through the hole 38b to open the hole 38b. The release sheet 9 of the adhesive means 7 on the body 1 is peeled off and blown away.

The light emitting element 38a is attached to a guide box 39, and the guide box 39 is opened on the front side facing the air nozzle 37 to receive the blown release sheet 9, and the guide box 39 The release sheet 9 is discharged from a discharge path 40 formed between the conveyance table 13 and the guide box 39.Although not shown, the guide box 39 is formed of a plate material with multiple holes such as punched metal. It is preferable that the material has a certain property.

(Sealing piece erecting mechanism) The bag 1 that is further conveyed is sent to a sealing piece erecting mechanism 41, which holds the sealing piece 4 upright. This standing mechanism 4
1, as shown in FIG. 1 and FIGS. 9 and 10,
* A passageway 43 is formed between the rising guide body 42 having the guide sloped edge 42a on which the sealing piece 4 of the bag 1 being transported rides, and the rising guide body 42 through which the raised sealing piece 4 passes. An auxiliary guide 44 is provided.

Further, a guide roller 45 is disposed upstream of the guide inclined edge 42a in the conveying direction, and a press roller 46 is disposed near the guide inclined edge 42a. , is pivotally supported for free rotation,
It is in contact with the top of the transport table 13.

The bag 1 to be conveyed passes the sealing piece 4 between the guide roller 45 and the conveying table 13, and the sealing piece 4 is bent by the fold forming part 45a (large diameter edge) of the guide roller 45. A crease is formed in the planned area. When the sealing piece 4 is subsequently passed between the pressing roller 46 and the conveying table 13, the portion of the sealing piece 4 from the fold to the opening edge 3 is held down by the pressing roller 46, and in this state, the sealing piece 4 is The free end portion is gradually raised up by the guide inclined edge 42a, and after being raised, it passes through the passageway 43 while being held by the upright guide body 42.

(Sealing Operation Means) During transportation, the bag 1 with the sealing piece 4 erected is held in the erected state by the erecting guide body 42, and is sent to the special equipment section 21.

In the special equipment section 21, one bag 1 is released from the driving piece 14 of the conveyor, stopped, and while waiting, the sealing piece 4 is folded face down by the sealing operation means 47, and is bonded to the adhesive layer 8. I am forced to do it.

As shown in FIGS. 1 and 11, this sealing actuator 47 includes an adhesive actuator 48 disposed on an extension of the upright guide body 42, and presses the adhesive actuator 48 against the sealing piece 4 to apply adhesive. An adhesion drive mechanism 49 such as an air cylinder that slides onto the layer 8 is configured. The adhesive working body 48
is equipped with a buffer plate 50 made of a band-shaped sponge or the like that spans the entire width of the bag body 1 on the upper surface of the bag body 1, and a spacer 51 is provided so that the lower surface of the buffer plate 50 moves forward and backward along the adhesive layer 8 of the bag body 1. It is positioned by That is, the spacer 51
is formed to have a wall thickness that is the same as or slightly thicker than that of the product 31 loaded in the two-bag body 1, and the adhesive actuator 48 is attached with the buffer plate 50 running along the spacer 51. Positioning.

Therefore, the bag 1 is sent to the special equipment section 21 with the sealing piece 4 held upright by the upright guide body 42, and the bag body 1 is stopped with the sealing piece 4 held in the upright position by the adhesive actuating body 48. Therefore, the subsequent bag body 1 has the above-mentioned air nozzle 3.
When detected by the detection means 38 that activates the adhesive drive mechanism 49, the adhesive drive mechanism 49 is activated by the signal from the detection means 38, and the adhesive operation body 48 is advanced. As a result, the sealing piece 4 is folded into a folded shape and is superposed and bonded onto the adhesive layer 8.

When the signal from the detection means 38 stops, the adhesion drive mechanism 49 retreats, causing the adhesion actuating body 48 to retreat and return to its original position.

(Means for discharging the product packaging bag) The bag 1 that has been sealed remains stationary in the special equipment section 21, and is discharged from the special equipment section 21 by the discharging means 90 shown in FIG.

That is, the discharge means 90 forcibly moves the packaged bag 1 from the special equipment section 21 by means of the cylinder device 91. As shown in Figure 12.

The ejection means 90 includes a fixed piece 92 and a swinging piece 93 which are divided into two parts, and when one bag 1 is transferred to the special equipment section 21,
While the swinging piece 93 swings to allow the bag 1 to pass through, after the sealing operation is completed by the sealing operation means 47, the swinging piece 93 is moved forward by the cylinder device 91.
The bag body 1 moves backward in the forward direction without swinging.
is moved in the extrusion direction.

(Other Embodiments) In the present invention, when folding the sealing piece 4, as shown in FIG. 1 to prevent the product from moving around within 3.
It is also possible to package 1 tightly.

〔Effect of the invention〕

According to the present invention, when inserting the product 31 into the flat-shaped bag body 1 consisting of front and back film parts, the opening of the bag body can be suitably opened, and the product can be surely and easily inserted and loaded. There is.

In particular, prior to inserting the product 31, the opening guide means 64 is advanced, and the opening edge 3 of the bag 1 is held open by the coracoid means 72 of the opening guide means 64. Since the product 31 is allowed to pass through while being opened, and the product 31 is advanced and inserted into the bag body 1, there is no malfunction in the insertion operation, and the product insertion method and device can be fully automated or semi-automated. Excellent in that respect.

[Brief explanation of drawings]

FIG. 1 is a plan view showing a device according to one embodiment of the present invention, FIG. 2 is an exploded perspective view showing one embodiment of the product insertion device,
Fig. 3 is a vertical side view showing the product insertion device in a state before operation, Fig. 4 is a longitudinal side view showing the product insertion device in a state where the opening guide means is advanced, and Fig. 5 is a longitudinal side view of the product insertion device in the state before operation. FIG. 6 is a longitudinal side view showing a state in which the product insertion means is advanced; FIG. The figure is a longitudinal side view showing the conveyance posture control mechanism, Fig. 8 is a longitudinal side view showing the release sheet peeling mechanism, Fig. 9 is a front view showing the sealing piece erecting mechanism, and Fig. 10 is a side view along the same line. Figure 11 is a longitudinal side view showing the sealing means, Fig. 12 is a longitudinal front view showing the ejection means in a state where the bag is being allowed to pass through, and Fig. 13 is a longitudinal sectional view showing the ejection means in a state where the bag is being ejected. FIG. 14 is a perspective view showing the bag used in the present invention; FIG. 15 is a perspective view showing the bag loaded with products and the release sheet is peeled off; FIG. 16 The figure is a perspective view showing a state in which the sealing piece is held upright, Fig. 17 is a perspective view showing a state in which the sealing piece is polymerized and bonded to the adhesive layer, and Fig. 18 is a perspective view showing a state in which the opening edge is bent together with the sealing piece. FIG. 3 is a longitudinal cross-sectional view of a bag body showing an example. l... Bag body, 3... Opening edge, 4... Sealing piece, 7.
... Adhesive means, 8... Adhesive layer, 9... Release sheet, 10... Holding piece, 11... Holding rond, 12...
・Minute H line. 60...Working section, 61...Working table, 62...
・Bag mounting table, 64...Opening guide means, 71・
... inclined wall, 72 ... coracoid means, 74 ... product insertion means. 75...Product placement section, 75a...Forced advance means, 7
6... Insertion drive member, 82... Air nozzle. 3

Claims (1)

[Claims] 1. In a method of inserting a product (31) into a bag (1) provided with a bendable sealing piece (4) for sealing the opening: Sealing the bag (1) The step of holding the piece (4); advancing the opening guide means (64) which can move forward and backward with respect to the opening (3) of the bag body (1), and the coracoid member (72) of the opening guide means (64); a step of opening the opening edge (3) of the bag by inserting the bag into the opening edge (3); a product (31);
The product insertion means (74) for advancing the product (31) opens the coracoid member (72) and the product (3) passes through the coracoid member (72).
1. A method for inserting a product into a bag, comprising the steps of: 1) inserting the product into the bag (1); 2. In a device for inserting a product (31) into a bag (1) equipped with a bendable sealing piece (4) for sealing the opening: holding the sealing piece (4) of the bag (1); Holding means (1
1), an opening guide means (64) that can move forward and backward with respect to the opening (3) of the bag (1), and an opening guide means (64) that moves the product (31) forward with respect to the opening (3) of the bag (1). Product insertion means (74
); the opening guide means (64) includes a coracoid member (72) that can be opened and closed and forms a tip when closed;
The product insertion means (74) is an insertion drive member that inserts the product (31) into the bag (1) through the coracoid member (72) opened by forcing the product (31) forward. (76); A device for inserting a product into a bag. 3. In a device for inserting a product (31) into a bag (1) equipped with a bendable sealing piece (4) for sealing the opening: holding the sealing piece (4) of the bag (1); Holding means (1
1), an opening guide means (64) that can move forward and backward with respect to the opening (3) of the bag (1), and an opening guide means (64) for placing the product (31) and opening (3) of the bag (1). It consists of a product insertion means (74) that can move forward and backward; the opening guide means (64)
A coracoid member (72) that can be opened and closed and forms a tip when closed.
The product insertion means (74) includes a coracoid member (7) that is opened by forcing the product (31) forward.
2) and inserts the product (31) into the bag (1). ) is forcibly separated from the holding means (11) and moved forward together with the forcibly advancing means (7).
5a); A device for inserting a product into a bag body.