JP2021160742A - Packaging machine - Google Patents

Abstract

To provide a packaging machine capable of removing side allowances of a package material.SOLUTION: A packaging machine comprises: an upper roll 10a that feeds a package material 9a to a packaging machine body; a lower roll 10b that feeds a package material 9b to the packaging machine body; an input conveyor 3 that carries a plurality of products 2 in order to the packaging machine body; weld unit both-sided chucks 12a, 12b that clamp a product being carried by the package material 9a and the package material 9b and draws the product by a product draw length; a weld conveyor 11 that carries the drawn product and both package materials; a weld unit that welds both sides of both package materials carried by the weld unit conveyor and a drawn lower end together; a cut unit 30 that cuts the drawn lower end of both package materials under welding at the weld unit; side-cut unit both-sided chucks 14a, 14b that move the package materials welded at the weld unit to a side-cut position; and side-cut units 32a, 32b that perform side cutting on both package materials at the side-cut position moved by the side-cut unit chucks.SELECTED DRAWING: Figure 1

Description

The present invention relates to a packaging machine.

As a conventional packaging machine of this type, for example, the one described in Patent Document 1 is known. This wrapping machine conveys the product with the upper film and the lower film sandwiched from above and below, and in the direction (vertical direction) that intersects the conveying direction (horizontal direction) between the upper film and the lower film, from the width of the product. The packaging is manufactured by cutting the seal with a slightly longer width.

Japanese Unexamined Patent Publication No. 2016-141397

However, in the conventional wrapping machine, since the wrapping body is sealed and cut only in the direction (longitudinal direction) intersecting the transport direction (horizontal direction) of the upper film and the lower film, the margin in the horizontal direction (side) of the wrapping body is used. There was a minute left. Since the package needs to fit in the shipping size of each shipping company, it is necessary to remove the margin on the side of the package.

An object of the present invention is to provide a packaging machine capable of removing a margin on the side of a packaging material.

In order to solve the above problems, the packaging machine according to claim 1 according to the present invention has an upper transport unit that transports the upper packaging material to the packaging machine main body and a lower transport that conveys the lower packaging material to the packaging machine main body. The product is composed of a unit, a product transport unit that sequentially transports a plurality of products to the packaging machine main body, an upper packaging material that is transported from the upper transport unit, and a lower packaging material that is transported from the lower transport unit. A welding section chuck that sandwiches the product conveyed from the conveying section and pulls in the product by the product pull-in length, a welding section conveying section that conveys the product and both of the packaging materials pulled in by the welding section chuck, and the above. Welding section Welding section that welds both sides and the lower end of the pull-in of both packaging materials that are conveyed by the conveying section, and a cut section that cuts the lower end of the pull-in of both packaging materials that are being welded at the welding section, and the welding. A side cut portion chuck that moves both of the packaging materials welded together to a side cut position, and a side cut portion that cuts the sides of both packaging materials at the side cut position moved by the side cut portion chuck. It is characterized by having and.

According to claim 2, in the packaging machine according to claim 1, when the cutter cuts the pull-in lower ends of both of the packaging materials, the welding portion chuck moves to the pull-in position of the next product, and the side cut portion. The chuck is characterized in that it moves to the position of the product packaged in the packaging material welded at the welded portion.

A third aspect of the present invention is the packaging machine according to the second aspect, wherein the welding portion chuck pulls in the next product after the side cut portion chuck moves to the side cut position.

According to the packaging machine of the present invention, the side cut portion cuts the sides of both packaging materials at the side cut position moved by the side cut portion chuck, so that the margin on the side of the packaging material can be removed. ..

It is a front view of the packaging machine which concerns on 1st Embodiment of this invention. It is a top view between AA of the packaging machine which concerns on 1st Embodiment shown in FIG. FIG. 3A is a detailed view around the upper roll and the lower roll. FIG. 3B is a plan view between A and A shown in FIG. 3A. It is a top view of the state which reads the product information by the bar code reader of the packaging machine which concerns on 1st Embodiment. It is a top view of the state in which the packaging material and the product are pulled in by the chucks on both sides of the welded portion of the packaging machine according to the first embodiment. FIG. 6A is a detailed view of the area around the pull-in lower end cut portion and the side cut portion. FIG. 6B is a plan view between BB shown in FIG. 6A. It is a top view which shows the position of the chuck on both sides of a welded portion and the chuck on both sides of a side cut portion when welding both sides of the packaging material and the lower end of the pull-in portion. It is a figure which shows the state which cuts the lower end of the pulling-in of the packaging material during welding with a knife. It is a figure which shows the state which the chucks on both sides of a welded part moved to the pull-in position of the next product, and the chucks on both sides of a side cut part moved to the position of a welded product. It is a figure which shows the state which the chucks on both sides of the side cut part moved to the side cut position after the product welding. It is a figure which shows the state which the next product was pulled in by the chuck on both sides of a welding part after the chucks on both sides of a side cut part moved to a side cut position. It is a figure which shows the side cut of the packaging material by the side cut part. FIG. 13A is a diagram showing a label portion. FIG. 13B is a plan view between CC of the label portion. It is a top view which shows the state which the label is attached to the product.

Hereinafter, the packaging machine according to the embodiment of the present invention will be described in detail with reference to the drawings.

(First Embodiment)
FIG. 1 is a front view of the packaging machine according to the first embodiment of the present invention. FIG. 2 is a plan view between A and A of the packaging machine according to the first embodiment shown in FIG. The wrapping machine is composed of a wrapping machine main body 1A and a loading conveyor 3, and wraps the product 2 on the mount 1 continuously conveyed from the loading conveyor 3 with the packaging materials 9a and 9b.

The packaging machine main body 1A includes a sensor 4, a charging buffer conveyor 5, a bar code reader 6b, packaging materials 9a and 9b, an upper roll 10a, a lower roll 10b, a welding conveyor 11, welded portion both side chucks 12a and 12b, and a side cut conveyor 13. , Side cut portion both side chucks 14a, 14b, pull-in lower end cut portion 30, side cut portion 32a, 32b, label portion 40, label portion stopper 41, bar code reader 42, press stopper 43, controller 51, start switch 52. ..

The controller 51 is composed of a sequencer, and includes a charging conveyor 3, a charging buffer conveyor 5, a welding conveyor 11, welding portions on both sides chucks 12a and 12b, side cut conveyors 13, side cut portions on both sides chucks 14a and 14b, and a pull-in lower end cutting portion 30. , Each of the side cut portions 32a and 32b is controlled.

The loading conveyor 3 corresponds to the product transporting unit of the present invention, and transports a plurality of products 2 to the packaging machine main body 1A in order. The sensor 4 detects the product 2 conveyed from the input conveyor 3 by detecting the presence or absence of the input buffer end work. The controller 51 stops the loading conveyor 3 based on the detection information of the product 2 from the sensor 4, and puts the packaging machine main body 1A in the loading waiting state.

The start switch 52 is pressed by the operator to output a start signal to the controller 51, and the controller 51 operates the packaging machine main body 1A by the start signal from the start switch 52.

The charging buffer conveyor 5 starts to move when the packaging machine main body 1A operates, and conveys the product 2 conveyed from the charging conveyor 3 in the direction of the welding conveyor 11. Above the charging buffer conveyor 5, an upper roll 10a (upper transport portion) in which the packaging material 9a (upper packaging material) is wound in a circle is arranged. Below the input buffer conveyor 5, a lower roll 10b (lower transport portion) in which the packaging material 9b (lower packaging material) is wound in a circle is arranged. The packaging material 9a and the packaging material 9b are pulled out and transported to the tip of the product 2.

As shown in FIG. 3A, the lower roll sensor 8 is arranged on the lower roll 10b side. The lower roll sensor 8 detects the presence or absence of the lower roll 10b, and if there is no lower roll 10b, prompts the replacement of the lower roll 10b.

FIG. 3B is a plan view between A and A in FIG. 3A, in which the sensor 4, the code reader 6a, and the sensor 7 are arranged. The code reader 6a generates a trigger for acquiring the product information of the product 2. The controller 51 operates the barcode reader 6b based on the trigger from the code reader 6a.

The barcode reader 6b reads the barcode attached to the product 2 and acquires the product information. The sensor 7 detects the presence or absence of the terminal work of the loading conveyor 3 to detect the pull-in length of the product 2, which is the length of the product 2 in the transport direction.

The welding conveyor 11 corresponds to the welding section transport section of the present invention, and transports the product 2 conveyed from the input buffer conveyor 5 to the welding section 15. The chucks 12a and 12b on both sides of the welded portion grip the packaging material 9a conveyed from the upper roll 10a and the packaging material 9b conveyed from the lower roll 10b, and are packaging materials for both the packaging material 9a and the packaging material 9b. The product 2 to be transported is sandwiched and the product 2 is pulled in by the pull-in length of the product 2 detected by the sensor 7.

FIG. 6A is a detailed view of the area around the pull-in lower end cut portion and the side cut portion. FIG. 6B is a plan view between BB shown in FIG. 6A. The welded portion pull-in confirmation sensor 16 detects the pulling of the product 2 into the welded portion and confirms the product pull-in.

The welded portion 15 has a heat generating member such as a cartridge heater, and welds both sides of both packaging materials 9a and 9b drawn by the chucks 12a and 12b on both sides of the welded portion and the lower end of the drawing. The product presence / absence sensor 17 detects the presence / absence of the product 2 in the welded portion 15.

As shown in FIG. 8A, the pull-in lower end cutting portion 30 cuts the pull-in lower end of the packaging materials 9a and 9b with a cutting tool during welding of the packaging materials 9a and 9b. The cut upper end sensor 18 adjusts the output amount of the blade by detecting the upper end of the blade. The cut lower end sensor 19 confirms the pulling of the blade by detecting the lower end of the blade.

When the pull-in lower end cut portion 30 cuts the pull-in lower ends of both packaging materials 9a and 9b, the welded portion both side chucks 12a and 12b move to the pull-in position of the next product 2, and the side cut portion both side chucks 14a, 14b moves to the position of the product welded by the welded portion 15.

The side-cut portion pull-in confirmation sensor 20 detects the pull-in of the product 2 into the side-cut portions 32a and 32b. The side-cut portion intermediate product confirmation sensor 21 detects that the product 2 on the side-cut portions 32a and 32b has come to the intermediate position. The side-cut portion final product confirmation sensor 22 detects that the product on the side-cut portions 32a and 32b has reached the final position.

The side cut portion both side chucks 14a and 14b move the packaging materials 9a and 9b welded by the welding portion 15 to the side cut positions. The side cut portions 32a and 32b cut the sides of both packaging materials 9a and 9b at the side cut positions moved by the side cut portions both side chucks 14a and 14b.

After the side cut portion both side chucks 14a and 14b move to the side cut position, the welded portion both side chucks 12a and 12b pull in the next product.

Next, the operation of the packaging machine according to the first embodiment configured as described above will be described in detail with reference to the drawings.

First, as shown in FIG. 2, when the product 2 is conveyed by the loading conveyor 3, the sensor 4 detects the product 2. The controller 51 stops the loading conveyor 3 based on the detection information from the sensor 4 and puts the packaging machine main body 1A in the loading waiting state.

Next, as shown in FIG. 2, when the start switch 52 is pressed by the operator, a start signal is output to the controller 51, and the packaging machine main body 1A is operated by the control signal from the controller 51.

Next, the charging buffer conveyor 5 starts to move, and as shown in FIG. 4, the product 2 conveyed from the charging conveyor 3 is conveyed in the direction of the welding conveyor 11. Then, the code reader 6a generates a trigger for acquiring the product information of the product 2, and the barcode reader 42 reads the barcode attached to the product 2 based on the trigger and acquires the product information. As shown in FIG. 3B, the sensor 7 detects the pull-in length of the product 2.

Next, as shown in FIG. 5, the welding conveyor 11 conveys the product 2 conveyed from the input buffer conveyor 5 to the welding section 15. As shown in FIG. 5, the chucks 12a and 12b on both sides of the welded portion grip the packaging material 9a conveyed from the upper roll 10a and the packaging material 9b conveyed from the lower roll 10b, and form the packaging material 9a and the packaging material 9b. The product 2 transported by both packaging materials is sandwiched and pulled in by the pull-in length of the product detected by the sensor 7.

Then, the pull-in of the product 2 is confirmed by the welded portion pull-in confirmation sensor 16 shown in FIG. 6B, and the product 2 is detected in the welded portion 15 by the product presence / absence sensor 17. Next, the welding portion 15 welds both sides of both packaging materials 9a and 9b and the lower end of the drawing with the chucks 12a and 12b on both sides of the welding portion.

Next, as shown in FIG. 7, the welded portion both side chucks 12a and 12b move to the pull-in position of the next product 2, and the side cut portion both side chucks 14a and 14b are welded by the welded portion 15. Move to position 2. At this time, as shown in FIG. 8B, the pull-in lower end cutting portion 30 cuts the pull-in lower end of the packaging materials 9a and 9b with a cutting tool during welding of the product 2.

Next, the product 2 is conveyed by the side cut conveyor 13. The side cut portion both side chucks 14a and 14b pull the product 2 into the side cut portions 32a and 32b from the position of the welded product 2 as shown in FIG. Then, the side cut portion pull-in confirmation sensor 20 shown in FIG. 6B detects the pulling of the product 2 into the side cut portions 32a and 32b.

Next, the side cut portion both side chucks 14a and 14b move the welded product 2 to the side cut position as shown in FIG. 10 after the product 2 is welded. Then, the side cut portion final product confirmation sensor 22 detects that the product 2 on the side cut portions 32a and 32b has reached the final position.

As shown in FIG. 10, after the side cut portion both side chucks 14a and 14b move to the side cut position, the welded portion both side chucks 12a and 12b pull in the next product.

Next, as shown in FIG. 11, the welded portion both side chucks 12a and 12b move to the pull-in position of the next product 2, and the side cut portion both side chucks 14a and 14b are welded by the welded portion 15. Move to position 2.

At this time, the side cut portions 32a and 32b shown in FIG. 12 cut the sides of both packaging materials 9a and 9b with the blades 33a and 33b at the side cut positions moved by the side cut portion side chucks 14a and 14b. ..

Next, after the sides of the packaging materials 9a and 9b are cut, the product 2 packaged with the packaging materials 9a and 9b is conveyed to the label portion 40 by a conveyor.

As shown in FIG. 13B, a label stopper sensor 23, a cord reader trigger sensor 24, a press stopper sensor 25, and a discharge product sensor 26 are arranged on the label portion 40. When the label stopper sensor 23 detects the product 2 and detects that the label portion stopper 41 is underneath, the label stopper sensor 23 outputs a label detection signal to the controller 51.
The controller 51 raises the label portion stopper 41 based on the label detection signal from the label stopper sensor 23. Then, a label such as an invoice is attached to the packaged product 2. After attaching the label to the product 2, the controller 51 lowers the label portion stopper 41.

After that, the packaged product 2 is conveyed by a conveyor as shown in FIG. The code reader trigger sensor 24 generates a code reader trigger and collates product information.

Next, when the press stopper sensor 25 detects that the press stopper 43 is below, it outputs a press detection signal to the controller 51.

The controller 51 raises the press stopper 43 based on the press detection signal from the press stopper sensor 25. Then, the label is pushed to the maximum. After the press cylinder is up and running, the conveyor-labeled product is transported. After that, the discharge product sensor 26 detects that the product 2 has been discharged.

As described above, according to the packaging machine according to the first embodiment, the side cut portions 32a and 32b are the sides of both packaging materials 9a and 9b at the side cut positions moved by the side cut portion both side chucks 14a and 14b. Is cut, so that the side margins of the packaging materials 9a and 9b can be removed.

Further, the chucks 12a and 12b on both sides of the welded portion move to the pull-in position of the next product 2, and the chucks 14a and 14b on both sides of the side cut portion move to the position of the product 2 welded by the welded portion 15. It can be easily moved from the position of the welded product 2 to the side cut position, the cycle time of the product can be shortened, and the work can be speeded up.

Further, after the side cut portion both side chucks 14a and 14b are moved to the side cut positions, the welded portion both side chucks 12a and 12b pull in the next product 2 by a predetermined length, so that the product cycle time can be shortened. , Work speeds up.

1 Mount 2 Product 3 Input conveyor 4 Sensor 5 Input buffer conveyor 6b Bar code reader 7 Sensor 8 Roll sensor 9a, 9b Packaging material 10a Upper roll 10b Lower roll 11 Welding conveyor 12a, 12b Welding part Both side chucks 13 Side cut conveyor 14a, 14b Side cut part both side chucks 15 Welding part 16 Welding part pull-in confirmation sensor 17 Product presence / absence sensor 18 Cut upper end sensor 19 Cut lower end sensor 20 Side cut part pull-in confirmation sensor 21 Side cut part Intermediate product confirmation sensor 22 Side cut part final product confirmation Sensor 23 Label stopper sensor 24 Code reader Trigger sensor 25 Press stopper sensor 26 Discharge product sensor 40 Label part 41 Label part stopper 42 Bar code reader 43 Press stopper 51 Controller 52 Start switch

Claims (3)

An upper transport unit that transports the upper packaging material to the main body of the packaging machine,
A lower transport unit that transports the lower packaging material to the packaging machine body,
A product transport unit that sequentially transports a plurality of products to the packaging machine main body,
A welding portion that sandwiches a product transported from the product transport unit between the upper packaging material transported from the upper transport unit and the lower packaging material transported from the lower transport unit, and draws the product by the product lead-in length. Chuck and
A welding section transporting section that transports the product and both packaging materials pulled in by the welding section chuck, and a welding section transporting section.
A welding portion that welds both sides and the lower end of the lead-in portion of both of the packaging materials transported by the welding portion transporting portion.
A cut portion that cuts the lower end of the lead-in of both of the packaging materials being welded at the welded portion, and a cut portion.
A side-cut portion chuck that moves both of the packaging materials welded at the welded portion to the side-cut position,
A side cut portion that cuts the sides of both packaging materials at the side cut position moved by the side cut portion chuck, and a side cut portion.
A packaging machine characterized by being equipped with. When the cut portion cuts the pull-in lower end of both of the packaging materials, the welded portion chuck moves to the pull-in position of the next product, and the side cut portion chuck is the packaging material welded at the welded portion. The packaging machine according to claim 1, wherein the product is moved to the position of the product packaged in. The packaging machine according to claim 2, wherein the welding portion chuck pulls in the next product by a predetermined length after the side cut portion chuck is moved to the side cut position.

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