JPH09109242A - Equipment for manufacturing cup-shaped containers with labels - Google Patents

Abstract

(57) Abstract: [PROBLEMS] To provide a device for manufacturing a cup-shaped container provided with a label such that the supply of the label into the molding region is performed outside the container inside which should be kept sterile. . A hollow chamber (24) is formed so as to penetrate through the matrix (12), and the hollow chamber of the matrix and a winding drum (25) are located axially opposite each other and are axially movable relative to each other. As a result, the winding drum holding the label 5 in the form of a sticking label around it is immersed in the hollow chamber of the matrix at the first position,
The label 5 is adapted to be delivered to the peripheral wall of the hollow chamber, and the free end face 26 of the winding drum in the second position of the winding drum has a cup-shaped container 2 in the hollow chamber of the matrix.
It is intended to form a limiting wall for the formation of the bottom of the.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for producing a cup-shaped container having a label, the cup-shaped container having a substantially cylindrical side wall and a bottom portion in a partial region of a plasticized plastic sheet. A matrix with a substantially cylindrical hollow chamber that can be molded into, a take-up drum around which the label can be wrapped around the label, and a label that is wrapped around the take-up drum are formed inside the hollow chamber of the matrix. And a device for delivering around a cup-shaped container.

[0002]

2. Description of the Prior Art In known devices of this type, a plasticized flat plastic sheet is fed into the cavity of the molding tool matrix before it is inserted into the hollow cavity of the molding tool and is molded. Labels are brought into the matrix from the side. This kind of configuration is
It works well under normal conditions, but is unsuitable for producing aseptic conditions in the molding area, which is a prerequisite for packaging perishable foodstuffs in cup-shaped packages. This is because, in particular, the germs intrude together with the label into the room of the molding tool, which is to be kept sterile. Therefore, it is desirable to design the cup-shaped container forming device so that the supply of the label into the forming area is done outside the container inside which should be kept sterile.

[0003]

The object of the invention is therefore to improve a device of the type mentioned at the outset such that the supply of the label into the molding area is external to the inside of the container to be kept sterile. An object of the present invention is to provide an apparatus for producing a cup-shaped container provided with a label as is done.

[0004]

In order to solve this problem, in the structure of the present invention, the hollow chamber is formed so as to penetrate in the matrix, and the hollow chamber of the matrix and the winding drum are axially arranged relative to each other. The winding drums, which are located opposite each other and are axially movable relative to one another, hold the label in the form of a sticker label around it.
At the position where the label is handed over to the peripheral wall of the hollow chamber, and the free end surface of the winding drum is located at the second position of the winding drum in the hollow chamber of the matrix. It was adapted to form a limiting wall for the formation of the bottom of the cup-shaped container.

[0005]

According to the present invention, the label can be fed into the matrix from the outside without the need to keep the plastic sheet or cup-shaped container sterile, that is to say it can be formed as a non-sterile area. Further, according to the present invention, even when a trouble occurs in the label supply, there is an advantage that the sterile ambient air of the apparatus is not affected.

[0006]

DETAILED DESCRIPTION OF THE INVENTION The present invention will now be described in detail with reference to the illustrated embodiments.

A thermoforming machine for the production of a cup-shaped container, for example a container 2 consisting of a plastic sheet strip 1, comprises a forming tool 10 with an upper part 11 and a matrix 12, which upper part 11 and The plasticized regions of the plastic sheet strip 1 are respectively inserted between the matrix 12 and the matrix 12. The upper part 11 and the matrix 12 are arranged in a chamber 13 in which sterile ambient air can be formed and maintained (hereinafter referred to as the sterile chamber 13). For this purpose, the vertically movable matrix 12 is hermetically connected at its outer circumference via a bellows 14 to a lower part 16 forming the bottom 15 of the device. Wall 1 forming the cover of the sterile room 13
The stationary upper part 11 of the forming tool 10 inserted in 7 is
Notch 18 with pressure gas supply hole 19 and push punch 21
And Matrix 12 that can be raised and lowered periodically
Axial, together with the cutout 18 and the pushing punch 21 of the upper part 11, forms a hollow chamber 24, which is substantially cylindrical, preferably somewhat conical and / or cylindrical. It can be formed in different shapes.

The hollow chamber 24 in the plate-shaped matrix 12 has a shape of a through cutout and is formed so as to penetrate therethrough. On the side opposite to the upper part 11 of the molding device, a hollow chamber 24 is provided in the axial direction.
A winding drum 25 is arranged opposite the winding drum 25, the free end surface 26 of the upper end region of which forms a bottom for the hollow chambers 24 of the matrix 12 in the first position of the winding drum 25. Somehow, it rushes into the hollow chamber 24. The rotatable winding drum 25 is arranged on a shaft 28 which is driven periodically by a transmission 27. This transmission device 27 is arranged in a non-sterile chamber 29, which is located in the lower part 16 of the molding device and which is separated from the sterile chamber 13 by the matrix 12 and the bellows 14.

A supply device 30 for the label 5 is also arranged in the non-sterile chamber 29. As shown in FIG. 2, which shows only one hollow chamber 24 of the matrix 12, the supply device 30 includes a deflecting roller 31, a feed roller pair 32, and a cross cutter 33. Label 5 is label band 6
The label band 6 is cut into pieces one by one by the cross cutter 33. This supply device 30
Are arranged in a non-sterile chamber 29 such that the front end 7 of the label band 6 is fed tangentially around the winding drum 25. In order to hold the label band 6, a large number of openings 35 are provided around the winding drum 25, and these openings 35 can be connected to a vacuum source via a hollow shaft 28. It can be connected to a source of compressed air for pushing off the label 5 which is wrapped as a sticker label.

Advantageously, the diameter of the intermediate portion 36 of the winding drum 25, around which the label band 6 contacts and winds, has a diameter of the end face 2
6 is slightly smaller than the diameter of the end region 37 with 6 and the end region 38 located near the transmission 27. The diameter of the end region 37 with the end face 26 of the winding drum 25 is slightly smaller than the inner diameter of the end region of the hollow chamber 24 located near the winding drum 25, so that between them. There is only a small gap in.

The illustrated apparatus operates as follows, as shown in FIGS. 2-8.

At the beginning of the working cycle, each one plasticized zone of the plastic sheet strip 1 is fed between the upper part 11 of the molding apparatus and the matrix 12.
At the same time, the feed roller pair 32 is attached to the label band 6
The front end 7 of is pushed out until it comes into contact with the winding drum 25 (FIG. 3). A vacuum is then applied to the opening 35 of the winding drum 25, so that the label band 6 is gripped by the negative pressure and is retained during the subsequent winding (FIG. 4).

The cross cutter 33 separates the label 5 from the label band 6 before the winding drum 25 makes one complete revolution. The winding drum 25 is then rotated by a slight angle until the entire label 5 contacts the winding drum 25 (FIG. 4). The winding drum 25 is then lifted up, so that the winding drum 25 sinks into the hollow chamber 24 of the matrix 12 (FIG. 5). In this second position of the winding drum 25 compressed air is supplied instead of a vacuum,
As a result, the label 5 in the form of a sticking label comes into contact with the inner peripheral surface of the hollow chamber 24 of the matrix 12, and adheres to the inner peripheral surface of the matrix 12 by the negative pressure in the opening provided in the wall of the hollow chamber 24 of the matrix 12. Adhere to.

Meanwhile, the plasticized region of the plastic sheet strip 1 is positioned and clamped between the upper part 11 of the forming tool and the matrix 12 (FIG. 6). The pushing punch 21 is moved downwards toward the plastic sheet strip 1 and pushes the region of the plastic sheet strip 1 stretched over the hollow chamber 24. Then, by the supply of compressed air from the notch 18 provided in the upper portion 11,
The cup-shaped container 2 is molded in the hollow chamber 24 of the matrix 12.

At the same time, the winding drum 25 is returned downward to its starting position. In this first position of the winding drum 25, the end surface 26 of the winding drum 25 is
Forming the bottom of the molding cavity for molding the bottom of the. When the peripheral wall of the cup-shaped container 2 is molded by compressed air, the plasticized region of the plastic sheet strip 1 contacts the label 5 attached to the peripheral wall of the hollow chamber 24 of the matrix 12. This label 5 is then glued to the hot cup wall (FIG. 7). The matrix 12 is then lowered, so that the molded cup-shaped container 2 with the label 5 is released and removed from the molding tool 10 (FIG. 8).

When the matrix 12 descends, the take-up drum 25 re-immerses in the hollow chamber 24 of the matrix 12. This means that even in this position, the label 5 held on the winding drum 25 can be delivered to the inner peripheral surface of the hollow chamber 24 of the matrix 12. For this case, in lieu of the working process described so far, one label 5 each is provided during the shaping of the cup-shaped container 2 immediately after the lowering of the winding drum 25.
It is also possible to form a voucher by winding it around the winding drum 25 as described with reference to FIGS. This optional or above-mentioned work process can be selected depending on the process time in service.

[Brief description of the drawings]

1 is a schematic cross-sectional view of a cup-shaped container forming device equipped with a label supply device according to the present invention.

FIG. 2 is a schematic view showing a first work step of one work cycle of the cup-shaped container molding device shown in FIG.

FIG. 3 is a schematic view showing a work step following the work step shown in FIG.

FIG. 4 is a schematic view showing a work step following the work step shown in FIG.

5 is a schematic view showing a work step following the work step shown in FIG. 4. FIG.

6 is a schematic view showing a work step following the work step shown in FIG.

FIG. 7 is a schematic view showing a work step following the work step shown in FIG.

8 is a schematic view showing a work step following the work step shown in FIG. 7. FIG.

[Explanation of symbols]

1 plastic sheet strip, 2 cup-shaped container,
5 labels, 6 label bands, 10 molding tools,
11 upper part, 12 matrix, 13 chamber (sterile chamber), 14 bellows, 15 bottom part, 16
Lower part, 17 walls, 18 notches, 19 pressure gas supply port, 21 pushing punch, 24 hollow chamber, 25
Winding drum, 26 End surface, 27 Transmission device, 28
Shaft, 29 non-sterile chamber, 30 feeding device, 31 deflecting roller, 32 feed roller pair, 33 cross cutter, 35 opening, 37 end region

Claims (4)

[Claims] 1. An apparatus for producing a cup-shaped container (2) with a label (5), comprising a partial region of a plasticized plastic sheet (1) having a substantially cylindrical side wall and a bottom. A matrix (12) having a substantially cylindrical hollow chamber (24) that can be molded into a cup-shaped container (2);
A winding drum (25) around which the label (5) is wound around the label and a label (5) wound around the winding drum are formed in the hollow chamber (24) of the matrix (12). A cup-shaped container (2) provided with a device for delivering the cup-shaped container (2), wherein a hollow chamber (24) is formed so as to penetrate through the matrix (12), and the hollow chamber of the matrix (12) is formed. (24)
The winding drum (25) and the winding drum (25) are located axially opposite to each other and are movable in the axial direction, whereby the winding drum holding the label (5) in the form of a sticker label around it. (25) is immersed in the hollow chamber (24) of the matrix (12) at its first position, and the label (5) is handed over to the peripheral wall of the hollow chamber (24), and the winding drum. In the second position of (25) the free end surface (26) of the winding drum (25) is restricted for the formation of the bottom of the cup-shaped container (2) in the hollow chamber (24) of the matrix (12). Device for producing a cup-shaped container with a label, characterized in that it is adapted to form a wall. 2. A free end surface (2) of the winding drum (25).
In the second position of the winding drum (25) the end region (37) close to 6) is located in the hollow space (2) of the matrix (12).
4) projecting into the nearby end portion with a slight play, and the central circumferential area (36) of the winding drum (25) for accommodating the label (5). Device according to claim 1, characterized in that it is formed with a reduced diameter in the radial direction relative to the end region (37). 3. An opening (35) for applying a vacuum and / or pressure for holding or pressing the label (5) around the winding drum (25). apparatus. 4. The winding drum (25) comprises a forming tool (1).
0) located in the chamber (29) bounded by the matrix (12) and the bellows (14) surrounding the matrix (12) from the chamber (13) bounded by the surface facing the upper part (11) The device according to any one of claims 1 to 3, which is provided.