ES1299114U - Handle Envelope Making Machine (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Machine for manufacturing envelopes with handles, comprising stations for cutting, creasing and folding the envelopes, and internal handles (5) formed by a strip with a hole (51) and a folding line (50), characterized by comprising a handle application device (5) that has an unwinding station (7) from where the material is taken to a die-cutter (8) that creates the hole (51), to a creasing machine that generates the folding line (50), to an adhesive applicator (9) and a transfer cylinder (10), so that each handle is delivered rotated with respect to the previous one. (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

Handle Envelope Making Machine

Object of the invention

The object of the present invention is a machine for manufacturing envelopes with handles, generally of the tamper-evident gusset type. In this way, once the envelope is opened it can be easily carried.

It is applicable in the manufacture of stationery elements.

Background of the invention

The use of envelopes of different sizes and formats is known for sending, preserving and transporting documents of all kinds: pages, photographs... and even small objects.

In the case of large-format envelopes, they often carry a large number of documents. Therefore, if they are open, it is necessary to carry them in a wallet or other container. If they are carried loose, they must be taken carefully to hold them with one hand so that they do not tip over and drop their contents.

In the current machines for manufacturing this type of envelopes, which generally include side gussets to increase their capacity, they start by defining a template, folding its sides to create the gusset, making a large transversal fold that defines the bottom and fixing the envelopes with adhesive. corresponding parts. The closure flap is prepared with a silicone strip to adhere it.

The Applicant is not aware of any solution to these problems similar to the invention.

Description of the invention

The invention refers to a machine for manufacturing envelopes with handles, according to the claims.

The machine for making envelopes with handles comprises a series of stations for cutting, creasing and folding the envelopes and a device for applying handles inside each envelope. The handles are made up of a strip with a hole and a fold line. This handle application device starts from an unwinding station from where the material is taken to a die-cutter that creates the hole. From there it goes to a creaser that generates the fold line and to an adhesive applicator. Finally, a transfer cylinder applies the handle to each side of the open envelope.

The handle on each side has a different orientation during use. This variation can occur in several ways. For example, they can be manufactured directly rotated, using blades, folding lines... in different, symmetrical arrangements. In another form of manufacture, a transfer station is provided which takes one of every two handles and rotates it 180° before returning it to its position.

Other solutions are described later.

Brief description of the figures

In order to facilitate the understanding of the invention, a series of figures showing embodiment examples is provided. These examples cannot be considered limiting but only illustrative.

Figure 1: Shows an example of an envelope produced by the machine, in front view.

Figure 2: Shows the previous envelope during manufacture.

Figure 3: Side view of an example of a machine.

Description of a preferred embodiment

The attached figures, and now described, show a preferred embodiment of the invention, being therefore mere examples.

Figure 1 shows an example of an envelope made according to the invention. It comprises two larger faces (1) with a flap (3) closing a mouth (31) and two bellows sides (4). Each of the gusseted sides (4) has at least five folds, so that generates two or more consecutive angles, in "W" or similar. In figure 1, the angles are somewhat shorter on the side that joins each other, and longer on the larger faces (1). It also includes some handles (5) on the inner faces of the two larger faces (1), foldable so that they can be extracted through the mouth (31) of the envelope.

The manufacturing steps are as follows. First, the material is unwound and, if desired, a print is made. Using alternating longitudinal folds, fold lines are prepared that will form both parts of the bellows (4). Next, the flap (3) is cut and the lateral cuts (6) thus generated are removed, normally by suction. The bellows (4) is folded. Other transversal folds are made to define the bottom and the fold of the flap (3). Finally, adhesive is applied to the bellows (4) and the folding is carried out so that the bellows (4) is properly joined.

In between, and prior to the final folding, the handles (5) are arranged. These handles (5) are made up of two pieces, generally rectangular, of paper or the like adhered to the inside of the larger faces (1). The pieces are joined at one end, with an adjacent fold line (50). A hole (51) in the free end allows the envelope to be gripped. In one position according to the fold line (50), the hole (51) of each handle (5) protrudes through the mouth (31), in the other position, the entire handle (5) is inside the envelope. Figure 2 shows the position of the handles (5) prior to the final folding. The preferred position can be seen, in which the handle (5) is adhered to the inside of the envelope so that when it does not fold along the fold line (50) it is when it appears through the mouth (31).

The application device for the handles (5) is shown in figure 3. Part of an unwinding station (7) from where it is taken to a die-cutter (8) that creates the hole (51). Next, the fold line (50) is generated with a transverse crease. This folding line (50) is what will allow the handle (5) to vary between the two aforementioned positions. An adhesive applicator (9) places a strip of it near the fold line (50) and finally the handle (5) is cut for its final placement on the envelope by means of a transfer cylinder (10).

It must be considered that each handle is delivered rotated 180° with respect to the previous and posterior ones. In a first way of carrying out this rotation, a transfer station is provided prior to the transfer cylinder (10). In another embodiment, the die-cutter (8), the folding line, the adhesive application... are programmed to directly create pairs of consecutive handles (5) with the opposite direction.

Any movement of the strip that will make up the handles (5) and of these is carried out by a system of transport belts and rollers. The transport belt will be suction, with a series of holes through which it is sucked to support the handle (5).

Claims (3)

1. Machine for manufacturing envelopes with handles, comprising stations for cutting, creasing and folding the envelopes, and internal handles (5) formed by a strip with a hole (51) and a folding line (50), characterized by comprising a handle application device (5) that has an unwinding station (7) from where the material is taken to a die-cutter (8) that creates the hole (51), to a creasing machine that generates the folding line ( 50), to an adhesive applicator (9) and a transfer cylinder (10), so that each handle is delivered rotated with respect to the previous one. 2. Machine for manufacturing envelopes with handles, according to claim 1, characterized in that the rotation of each handle is carried out in a transfer station prior to the transfer cylinder (10). 3. Machine for manufacturing envelopes with handles, according to claim 1, characterized in that the die-cutter (8), the folding line and the application of the adhesive are programmed to create pairs of consecutive handles (5) with the opposite direction.