JP5465545B2 - Knife folding machine - Google Patents

Description

  The present invention relates to a knife folder that folds a sheet using a pair of folding rollers and a knife, and more particularly to a knife folder that can be switched between a right angle fold and a parallel fold.

  2. Description of the Related Art There is a paper folding machine in which a folding unit is provided that bends in the same direction as the transport direction and then bends in a direction perpendicular to the transport direction in a series of transport processes for transporting paper. In a combined buckle / knife type paper folding machine, a so-called combined type paper folding machine, parallel folding is folded at the first folding station on the buckle principle, while subsequent right-angle folding is vertical. This is done by a folding knife that operates in the direction. Therefore, the folded sheet is conveyed from the parallel folding outlet to the right-angle folding station so as not to slip by the conveyor belt (see, for example, Patent Document 1).

JP 2008-127208 A

  As described above, the knife folding machine is usually installed and used immediately after the buckle folding machine. However, as shown in FIG. A right-angle fold that forms a knife fold in a direction perpendicular to the buckle fold, and a knife is formed in parallel to the paper conveying direction as shown in FIG. There are parallel folds to form.

  Conventionally, when switching between the above two types of folding, the user installs two machines, a “right angle knife folding machine” that performs a right angle folding and a “parallel knife folding machine” that performs a parallel folding. It was necessary to reconnect the two types of machines every time it changed, and there was a problem that a large amount of equipment cost was generated and it took time to switch between right angle folding and parallel folding.

  The present invention has been made in view of the above problems, and provides a knife folding machine that can be used by easily switching between right-angle knife folding and parallel knife folding according to the application in one apparatus. Objective.

A knife folding machine according to a first aspect of the present invention includes a first paper transport mechanism and a folding knife mechanism that projects a knife parallel to the paper transport direction at a folding position of the paper transported by the first paper transport mechanism. And a folding roller mechanism that sandwiches the paper folded by the folding knife mechanism with a pair of folding rollers, and includes a replacement unit that includes a second paper transport mechanism and a paper stopper. By disposing the first paper transport mechanism and disposing the replacement unit so that the second paper transport mechanism transports the paper in a direction perpendicular to the paper transport direction of the first paper transport mechanism , above conveys the sheet by the second sheet transport mechanism in the transport direction perpendicular to the direction of the sheet by the first sheet transport mechanism, the folding unstoppable sheet by the sheet stopper And wherein the projecting perpendicularly knife IF mechanism to the sheet conveyance direction.

  According to the knife folding machine of the first aspect of the present invention, by replacing the first paper transport mechanism and the replacement unit, the second paper transport mechanism provided in the replacement unit allows the sheet of the paper by the first paper transport mechanism to be changed. Paper can be conveyed in a direction perpendicular to the conveyance direction, and the folding knife mechanism, folding roller mechanism, etc. can be switched as they are, so the paper can be switched between right-angle folding and parallel folding. It is not necessary to install these two machines, and it is possible to easily switch between right-angle folding and parallel folding of the paper in one apparatus according to the application.

According to the knife folding machine of the first aspect of the present invention, the replacement unit includes the paper stopper, and the paper transported by the second paper transport mechanism provided in the replacement unit is stopped at a predetermined position. Therefore, the knife can be reliably projected at the folding position of the paper.

It is a figure which shows schematic structure of the processing machine provided with the knife folder of this invention. It is a figure which shows the state which set the exchange unit to the knife folder of this invention. It is a figure for demonstrating a right angle fold and a parallel fold.

Embodiments of a knife folder according to the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view schematically showing a processing machine equipped with a knife folding machine, wherein 1 is a pre-processing machine, 2 is paper, 3 is a knife folding machine, 4 is a knife, 5a and 5b are a pair of folding rollers, 6a and 6b are conveying belts for conveying the paper 2, 7 is a base, 8a and 8b are belt support shafts fixed to the base 7, a folding knife mechanism having a knife 4, and a pair of folding rollers 5a and 5b. The knife folding machine 3 is composed of a folding roller mechanism including the sheet feeding mechanism and a sheet conveying mechanism including the conveying belts 6a and 6b.

The pre-processing machine 1 performs pre-processing such as buckle folding, and the paper 2 carried out from the pre-processing machine 1 is conveyed to the knife folding machine 3. The knife 4 can be moved in the vertical direction by a reciprocating mechanism (not shown). The pair of folding rollers 5a and 5b are rotated in opposite directions by a drive mechanism (not shown). The conveyor belts 6a and 6b are wound around pulleys (not shown) attached to belt support shafts 8a and 8b fixed to the base 7, and are moved in the direction of the arrow shown by a drive device (not shown). Although not shown, there is also a conveyor belt above the conveyor belts 6a and 6b, and the sheet is conveyed by being sandwiched between upper and lower conveyor belts.
And the drive mechanism of the knife 4 and the drive mechanism of folding roller 5a, 5b are being fixed to the machine main body to which the base 7 was attached.

Hereinafter, an operation in the case where the knife is configured in parallel with the sheet conveyance direction and the right-folding is performed by the knife folder 3 of FIG. 1 will be described.
When the paper 2 is supplied from the pre-processing machine 1 to the knife folding machine 3 with the pair of folding rollers 5a and 5b rotating in opposite directions, the paper 2 is transported by the transport belts 6a and 6b. . Then, at the timing when the center line of the sheet 2 is supplied to an intermediate position between the pair of folding rollers 5 a and 5 b, the knife 4 is lowered to the center line that is the folding position of the sheet 2. As a result, the knife 4 protrudes to the center of the paper 2 and the paper 2 is pushed between the pair of rollers 5a and 5b, so that the rotating pair of folding rollers 5a and 5b pulls the paper 2 from the folding position. The signature 9 that has been folded and formed is carried out downward.

Next, a case where a knife is configured in the direction perpendicular to the paper conveyance direction using the knife folder 3 and parallel folding is performed will be described with reference to FIG.
In FIG. 2, 11 is a transport unit, and 12 is a paper stopper. The transport unit 11 and the paper stopper 12 constitute an exchange unit.
The transport unit 11 includes a transport unit frame 13, a belt support shaft 14 fixed to the transport unit frame 13, transport belts 15 a and 15 b and belts spanned on pulleys (not shown) attached to the belt support shaft 14. Drive mechanism (not shown). As in the above, although not shown, there is also a transport belt above the transport belts 15a and 15b, and the paper is transported between the upper and lower transport belts.

  When parallel folding is performed by forming a knife in a direction perpendicular to the sheet conveying direction, the conveying belts 6a and 6b in FIG. 1 are removed, the conveying unit 11 and the sheet stopper 12 are set on the base 7, and then a pre-processing machine. The knife folding machine 3 is arranged in a direction in which the sheet 2 from 1 is supplied in the sheet conveying direction of the conveying belts 15a and 15b.

  When the sheet 2 is supplied from the pre-processing machine 1 to the knife folding machine 3 with the pair of folding rollers 5a and 5b rotating in opposite directions at the time of performing parallel folding, the conveying belts 15a and 15b The sheet 2 is conveyed. When the paper 2 reaches the position of the paper stopper 12, the paper 2 is stopped by the paper stopper 12, and the center position of the paper 2 is positioned at the tip position of the knife 4.

  When the paper 2 is positioned, the knife 4 is lowered by the driving mechanism and protrudes to the center of the paper 2 and pushes the paper 2 between the pair of folding rollers 5a and 5b, so that the paper 2 is pushed between the pair of rollers 5a and 5b. The sheet 2 is folded and discharged by the rotating rollers 5a and 5b.

  As described above, the conveyance belt 6 constituting the first paper conveyance mechanism is removed, and the conveyance unit 11 and the paper stopper 12 are set, so that the conveyance unit 11 constituting the second paper conveyance mechanism uses the conveyance belt 6. The sheet can be conveyed in a direction perpendicular to the sheet conveyance direction, and the sheet can be switched between the right-angle fold and the parallel fold without changing the folding knife mechanism and the folding roller mechanism. It can be easily switched and used in one apparatus according to the application.

  Further, since the paper stopper 12 is provided as the replacement unit, the paper transported by the transport unit 11 provided in the replacement unit can be stopped at a predetermined position, and the knife 4 is reliably protruded to the paper folding position. be able to.

In the above-described embodiment, the case where the exchange unit is used in the case of performing the parallel folding by configuring the knife in the direction perpendicular to the paper conveyance direction in the right-angle knife folding machine has been described as an example. In the machine, it is also possible to use an exchange unit when a knife is formed in a direction parallel to the paper transport direction to perform right-angle folding.
Moreover, although the example which uses a buckle folding machine as a pre-processing machine was demonstrated in said Example, various pre-processing machines can be used as a pre-processing machine.

DESCRIPTION OF SYMBOLS 1 Pre-processing machine 2 Paper 3 Knife folding machine 4 Knife 5a, 5b Folding roller 6a, 6b, 15a, 15b Conveyor belt 7 Base 8a, 8b, 14 Belt support shaft 9 Fold 11 Transport unit 12 Paper stopper 13 Transport unit frame

Claims (1)

A first paper transport mechanism, a folding knife mechanism that projects a knife parallel to the paper transport direction at a folding position of the paper transported by the first paper transport mechanism, and a paper folded by the folding knife mechanism. A knife folding machine comprising a folding roller mechanism sandwiched between a pair of folding rollers,
With a replaceable unit with a second paper transport mechanism and the paper stopper, the direction in which the first remove the paper transport mechanism said second sheet transport mechanism is orthogonal to the sheet conveying direction of the first sheet conveying mechanism By disposing the replacement unit so as to transport the paper, the second paper transport mechanism transports the paper in a direction perpendicular to the paper transport direction by the first paper transport mechanism and stops by the paper stopper. A knife folding machine characterized in that a knife of the folding knife mechanism is projected onto a sheet of paper in a direction perpendicular to the paper transport direction .

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