Creasing mechanism for generating creases on labels and labeling equipment

Abstract

The utility model relates to a creasing mechanism and labeling equipment for generating creasing on a label, the creasing mechanism is provided with a bottom plate, two sides of the bottom plate are respectively provided with a group of support columns, each group of support columns comprises at least one support column, each group of support columns is respectively provided with a first cross beam and a second cross beam, and the first cross beam and the second cross beam are arranged on the bottom plate. A first roller pair is arranged between the first cross beams on the two sets of supporting columns, a second roller pair is arranged between the second cross beams on the two sets of supporting columns, a roller pair support is further arranged on the bottom plate, the roller pair support is fixed relative to the bottom plate in an adjustable mode, and a third roller pair and a fourth roller pair are supported on the roller pair support. A tetrahedral turning part for turning the label tape is clamped between the second roller pair and the third roller pair, and the first roller pair and the fourth roller pair are designed to be used as crease pressing roller pairs for pressing creases on the labels. And a matched crease can be generated on the label tape in advance according to the contour of the container through the crease mechanism.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of sleeve labeling, especially relates to a crease mechanism for producing creases on labels and a sleeve labeling device. BACKGROUND

[0002] Sleeve labeling machines are widely used in the fields of food, beverages, daily-use chemicals and pharmaceuticals. Sleeve labeling machines can automatically cut off label strips and accurately sleeve them, and cooperate with subsequent heat shrinkage processes to fix labels on cylindrical containers. Sleeve labeling machines have excellent high-speed stability. Nowadays, automated high-speed sleeve labeling devices have been widely used in various fields.

[0003] Compared with circular bottles, the four right angles of square bottles make it easier for labels to wrinkle, misalign or tear during the attachment process. Traditional sleeve labeling methods often rely on manual adjustment or simple mechanical devices, which are not only inefficient but also difficult to ensure the consistency and aesthetics of label attachment. Therefore, for square bottle sleeve labeling, in order to ensure that the labels can be correctly and neatly attached to the four sides of the bottle, it is necessary to pre-produce creases on the labels. However, existing sleeve labeling devices cannot reliably and flexibly produce creases on label strips, often requiring manual assistance, which greatly reduces production efficiency.

[0004] Therefore, it is necessary to develop a crease mechanism and a sleeve labeling device that can accurately control the position of the creases and ensure that the labels can be closely and evenly attached to the four sides of the square bottle during the attachment process. At the same time, the crease mechanism should also have the advantages of simple structure, easy maintenance and flexible adjustment to meet the packaging needs of square bottles of different specifications and shapes. SUMMARY

[0005] The utility model aims to provide a crease mechanism for producing creases on labels that has a simple structure and can be flexibly adjusted, as well as a sleeve labeling device with such a crease mechanism.

[0006] The above technical problem is solved by a creasing mechanism for producing creases on a label, wherein the creasing mechanism has a base plate, on both sides of which a set of struts is arranged, each set of struts comprising at least one strut, on each set of struts a first cross beam and a second cross beam are arranged, between the first cross beams on both sets of struts a first roller pair is arranged, between the second cross beams on both sets of struts a second roller pair is arranged, on the base plate a roller pair holder is arranged, which is adjustably fixed relative to the base plate, on the roller pair holder a third roller pair and a fourth roller pair are supported, wherein between the second roller pair and the third roller pair a tetrahedron deflector for deflecting a label web is clamped, wherein the first roller pair and the fourth roller pair are designed as pressure creasing roller pairs for pressing creases on the label. Here, a crease is produced on the label web in advance by the first roller pair and the fourth roller pair, while the tetrahedron deflector deflects the label web after the crease has been produced by means of the first roller pair, so that a different crease can be produced via the fourth roller pair. The positions at which the two creases are produced each correspond to the four edges of a square bottle, so that a perfect fit of the label to the contour of the square bottle can be ensured. Here, the square bottle can be a cuboid container bottle or a rectangular container bottle.

[0007] According to an advantageous embodiment, the first cross beam and / or the second cross beam is / are adjustably fixed on each set of struts. In this way, the height of the first roller pair and the second roller pair can be flexibly adjusted.

[0008] Preferably, each set of struts has at least two struts, wherein above the first cross beam a fixing frame is also arranged, which is fixedly connected to the respective struts and in the center of which an opening for the label web is designed. Each set of struts has at least one strut, however two struts can improve the stability and balance of the entire mechanism. Above each strut, a fixing frame can also be fixed, thus further improving the stability of the entire creasing mechanism.

[0009] It is also advantageous if at both opposite upper edges and lower edges of the tetrahedron deflector a bearing set is arranged, which cooperates with the rollers of the second roller pair and the third roller pair, respectively. By the cooperation of the bearing sets with the rollers of the second and third roller pairs, the friction of the label passing through the tetrahedron deflector can be greatly reduced.

[0010] It is also preferred if at both opposite upper edges and lower edges of the tetrahedron deflector a recess is arranged, the contour of which matches the contour of the rollers of the second roller pair and the third roller pair, wherein the bearing sets are arranged in the recesses. By the mutually matching contours, the cooperation of the second roller pair, the third roller pair with the bearings is more intimate. In addition, by embedding the bearing sets in the recesses, the passage of the label web can be made smoother.

[0011] Advantageously, a plurality of sets of fixing holes for fixing the roller pair support at different positions are provided on the base plate. For example, the roller pair support can be fixed such that the third roller pair forms an included angle of 30-60 degrees, in particular 45 degrees, with respect to the second roller pair. Thereby, the range of application is increased.

[0012] Preferably, the roller pair support comprises two pairs of horizontal bars and two pairs of vertical bars, between which the third roller pair and the fourth roller pair are arranged, respectively.

[0013] Further advantageously, the size of each face of the tetrahedral deflector is designed to match the position of the creases of the label. Thereby, the matching degree with the square bottle contour is further increased.

[0014] Also advantageously, the rollers in each roller pair comprise a metal intermediate shaft and a rubber jacket layer sleeved on the intermediate shaft. Thereby, the rotation flexibility is ensured while sufficient friction with the label tape is ensured.

[0015] In addition, the present application also proposes a labeling device, which comprises a bottle separating mechanism and a labeling mechanism and a heat shrinkage oven, wherein the labeling device further comprises the creasing mechanism of any one of the above-mentioned embodiments upstream of the labeling mechanism in the conveying direction of the containers.

[0016] The present application has the following beneficial effects: two roller pairs for producing creases are provided to produce labels that correctly match the contour of square bottles, so as to ensure that the labels can be closely and flatly attached to the four side faces of square bottles. In addition, the roller pair support is designed to be adjustable, so that different specifications of square bottles can be flexibly matched. The bearing set can greatly reduce the resistance of the label tape passing through the creasing mechanism, on the one hand, the passing speed is increased, so that the entire labeling assembly line can operate at a higher speed, on the other hand, the label tape is prevented from being pulled off or deformed due to high friction. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic view of a creasing mechanism according to an embodiment of the present application;

[0018] Figure 2 is a schematic view of a tetrahedral deflector arranged between the second roller pair and the third roller pair;

[0019] Figure 3 is a top view of the creasing mechanism according to an embodiment of the present application;

[0020] Figure 4 is a view of the bottom side of the creasing mechanism according to the present application. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the utility model clearer and more comprehensible, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0022] Figure 1 A schematic view of a creasing mechanism 100 of an embodiment of the utility model is shown. The creasing mechanism is used in particular to produce creases on a label strip that correspond to the corners of a square bottle container. Here, the square bottle can be a cuboid container bottle or a rectangular container bottle, for example a variety of flat containers. The crease positions are therefore also different depending on the contour of the container, which places certain demands on the adjustability of the creasing mechanism.

[0023] The creasing mechanism 100 comprises a base plate 1 on which four struts 2 are fixedly arranged. The four struts 2 are divided into two groups and are arranged on either side of the base plate 1. That is to say, each group of struts comprises two struts 2. However, each group of struts can also comprise one strut or three or more struts. However, two struts are advantageous in order to achieve an optimum balance between stability and structural simplicity. A first crossbar 3 and a second crossbar 4 are fixed on each group of struts. The position of the first crossbar 3 and the second crossbar 4 on the struts can be adjusted up and down, that is to say, the height can be adjusted. The first crossbars 3 on both groups of struts are at the same height and a first roller pair 5 is supported between the first crossbars. Here, the first roller pair 5 comprises two rollers that can be rotated towards one another. That is to say, the direction of rotation of the rollers is opposite. The label strip is introduced from above and passes between the two rollers of the first roller pair 5 and is thus pressed out with a first crease. A second roller pair 6 is arranged in the middle of the second crossbar 4. The second roller pair 6 likewise comprises two rollers. However, the rollers of the second roller pair 6 are each in a bearing arrangement on a tetrahedral deflection element 7 in order to guide the label strip through the creasing mechanism.

[0024] A fixing frame 8 is also fixed on the top of the struts or above the first roller pair, which is fixedly connected to each strut. In the shown solution, the fixing frame 8 is fixedly connected to the four struts on the four corners, thereby further improving the stability of the entire creasing mechanism 100. Figure 1

[0025] A roller pair holder 9 is also fixedly arranged on the base plate 1, which comprises two pairs of crossbars and two pairs of vertical bars. A third roller pair 10 and a fourth roller pair 11 are each supported between the two crossbar pairs. The roller pair holder is fixed on the base plate in an adjustable manner by means of bolts or screws. The tetrahedral deflection element 7 is clamped between the second roller pair 6 and the third roller pair 10. Here, the fourth roller pair 11 is designed like the first roller pair 5 as a press crease roller pair, which presses a crease in the label strip by means of the close fit of the two rollers. The second roller pair 6 and the third roller pair 10 are designed as guide rollers.​

[0026] 11. Figure 2 A separate view of the tetrahedral steering component 7 is shown. (See attached image.) Figure 2 As shown, the tetrahedral steering member 7 includes four identical sides and two opposing edges, namely, the upper edge 12 and the lower edge 13. Grooves 14 are respectively formed at the upper edge 12 and the lower edge 13. A bearing assembly 15 is provided in each groove. Here, each bearing assembly 15 may include at least one bearing, in the illustrated embodiment including two bearings, however, it may also include three or more bearings. The contour of the groove 14 is adapted to the outer contour of the rollers of the second roller pair 6 and the third roller pair 10, such that the rollers of the second roller pair 6 and the third roller pair 10 can fit tightly with the bearings arranged in the grooves. The size or shape of each face of the tetrahedral steering member is designed to fit the location of the label crease.

[0027] Figure 3 A top view of the crease mechanism according to an embodiment of the present invention is shown. Figure 3 It can be clearly seen that the first and second roll pairs form an angle of approximately 45 degrees with respect to the third and fourth roll pairs supported by the roll pair supports. Here, the first and second roll pairs are arranged parallel to each other, as are the third and fourth roll pairs. The relative angles of the first and second roll pairs with respect to the third and fourth roll pairs supported by the roll pair supports can be adjusted by adjusting the position of the roll pair supports. Advantageously, this adjustment can be made within a range of 30 to 60 degrees. Figure 3 It is also shown that the fixing frame 8 is fixedly connected to each support and has an opening for the label tape in the center of the fixing frame.

[0028] Figure 4 A bottom view of the crease mechanism according to the present invention is shown. Figure 4 As can be seen, the base plate 1 is fixedly connected to the four supports. Additionally, multiple sets of fixing holes 16 are provided on the base plate 1 for fixing the roller pair support at different positions on the base plate 1, depending on the selection. By fixing the roller pair support at different positions on the base plate 1, the third and fourth roller pairs on the roller pair support can be made to form different angles with the first and second roller pairs. For example, an angle between 30 and 60 degrees. The roller pair support can be fixed to the base plate 1 in a detachable and therefore adjustable manner using screws or bolts. Figure 4 It is also shown that the base plate 1 is also constructed with a through hole in the center, through which the label tape guided from the fourth roller pair passes and is conveyed downstream by the mechanism.

[0029] In this application, each roller includes a metal shaft and a rubber sleeve covering the surface of the metal shaft. This increases the friction between the roller and the label tape while ensuring rotational flexibility.

[0030] The sleeve labeling device comprises a bottle separating mechanism, a sleeve labeling mechanism and a heat shrinkage furnace.

[0031] In summary, the creasing mechanism for producing creases on the label tape in the embodiment can reliably press four different creases on the label tape with a simple structure. The creasing mechanism can flexibly adjust the position of the roller pair support according to the profile of the square bottle container, so that the crease position can be adjusted according to the profile of the square bottle. In addition, a plurality of bearing sets cooperating with the second roller pair and the third roller pair are arranged on the tetrahedral turning piece, so that the resistance of the label tape passing through the creasing mechanism is greatly reduced. Thus, the creasing mechanism can be operated at high speed, and the label tape will not be pulled off or deformed due to high speed and high resistance. Overall, the sleeve labeling device with the creasing mechanism can be operated at high speed and can reliably and accurately control the position of the crease, and the label can also be closely and flatly attached to the four sides of the square bottle during the attachment process by means of the crease. At the same time, the creasing mechanism in the sleeve labeling device also has the advantages of simple structure, convenient maintenance and flexible adjustment, so as to meet the packaging requirements of square bottles of different specifications and shapes.

[0032] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A creasing mechanism for creating a crease on a label, characterized by, The creasing mechanism has a base plate, on both sides of which a set of struts is arranged, each set of struts comprising at least one strut, on each set of struts a first cross beam and a second cross beam are arranged, between the first cross beams of the two sets of struts a first roller pair is arranged, between the second cross beams of the two sets of struts a second roller pair is arranged, on the base plate a roller pair holder is arranged, which is adjustably fixed relative to the base plate, on the roller pair holder a third roller pair and a fourth roller pair are supported, wherein between the second roller pair and the third roller pair a tetrahedron deflector is clamped for deflecting the label web, wherein the first roller pair and the fourth roller pair are designed as pressure creasing roller pairs for pressing creases into the label.

2. The creasing mechanism of claim 1, wherein, The first cross beam and / or the second cross beam are adjustably fixed on each set of struts.

3. The creasing mechanism of claim 1 or 2, wherein, Each set of struts has at least two struts, wherein above the first cross beam a fixed frame is arranged, which is fixedly connected to the respective struts and in the center of which an opening for the label web is designed.

4. The creasing mechanism of claim 1 or 2, wherein At two opposite upper edges and lower edges of the tetrahedron deflector bearing sets are arranged, which interact with the rollers of the second roller pair and the third roller pair, respectively.

5. The creasing mechanism of claim 4, wherein, At two opposite upper edges and lower edges of the tetrahedron deflector recesses are arranged, the contour of which matches the contour of the rollers of the second roller pair and the third roller pair, wherein the bearing sets are arranged in the recesses.

6. The creasing mechanism of claim 1 or 2, wherein, On the base plate a plurality of fixing holes for fixing the roller pair holder in different positions are arranged.

7. The creasing mechanism of claim 1 or 2, wherein The roller pair holder comprises two pairs of cross bars and two pairs of vertical bars, between which the third roller pair and the fourth roller pair are arranged, respectively.

8. The creasing mechanism of claim 1 or 2, wherein, The size of each face of the tetrahedron deflector is designed to match the position of the label to be creased.

9. The creasing mechanism of claim 1 or 2, wherein, The rollers of each roller pair comprise a metal intermediate shaft and a rubber jacket layer which is sleeved on the intermediate shaft.

10. A labelling apparatus comprising a bottle separating mechanism and a labelling mechanism and a heat shrink oven characterised in that, The labelling device comprises upstream of the labelling mechanism the creasing mechanism according to any one of claims 1 to 9, seen in the conveying direction of the container.

Images