Center guiding mechanism for square label and label sleeving equipment

Abstract

The utility model relates to a center guiding mechanism and labeling equipment for square labels, which comprises a label guiding-in stabilizing plate, a base body and a lower label guiding column connected below the base body, the label guiding-in stabilizing plate is arranged at the upper end of the base body, a long notch for a photoelectric sensor is arranged in the label guiding-in stabilizing plate along the conveying direction of the labels, and the photoelectric sensor is arranged in the long notch. The first part, connected with the label guide-in stabilizing plate, of the base body is designed to be in a truncated cone shape, the second part, connected with the first part, of the base body is provided with four flattening surfaces, the flattening surfaces are connected through arc-shaped transition parts, and the two opposite flattening surfaces are each provided with at least one positioning auxiliary wheel. At least one label driving wheel is arranged on each of the other two mutually opposite flattening surfaces, the positioning auxiliary wheel and the label driving movable wheel are arranged in corresponding grooves formed in the flattening surfaces respectively, and two label unloading driving wheels are symmetrically arranged at the lower end of the label unloading guide column; and the guide rods are respectively arranged in the gaps at the lower end edges of the subscript guide columns.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the packaging machinery technical field, concretely relates to a center guiding mechanism for square label and label sleeving equipment. BACKGROUND

[0002] Compared with the circular bottle, the four right angles of the square bottle make the label more likely to wrinkle, misalign or tear during the pasting process. Therefore, for the square bottle label sleeving, in order to ensure that the label can be correctly and neatly pasted on the four faces of the bottle, it is necessary to pre-produce creases on the label.

[0003] However, the existing label guiding center column is mostly designed for circular containers. For example, an improved label sleeving machine known from the prior art comprises a heat shrinkage oven and a conveyor belt for conveying beverage bottles through the heat shrinkage oven, a vertical center column is arranged above the conveyor belt; the center column is sleeved with a series of labels from top to bottom, and is sequentially provided with a label lower pulley block, a label cutting cutter and a label shooting pulley block. However, in the high-speed label sleeving process, this center column is only designed for cylindrical labels, which makes the creased part of the square label band easily misaligned, thereby adversely affecting the label sleeving effect. In addition, the surface of this cylindrical center column is smooth, and the label film is easily adsorbed on the surface of the center column, which causes difficulty in label conveying.

[0004] Therefore, it is urgent to improve the center guiding mechanism for square label and label sleeving equipment in the prior art, so as to realize good guiding and label sleeving control for square labels. SUMMARY

[0005] The utility model aims at providing a center guiding mechanism for square label and label sleeving equipment, which is designed for square labels for square bottles, so as to ensure the correct orientation of the square label during the conveying of the label band and avoid the misalignment of the label.

[0006] The above technical problem is solved by a center guide mechanism for square labels, comprising a label introduction stabilizing plate, a base body and a lower label guide column connected below the base body, the label introduction stabilizing plate is fixedly arranged at the upper end of the base body, wherein an elongated notch for a photoelectric sensor is arranged in the label introduction stabilizing plate along the direction of label conveying, the base body is designed as a truncated cone at a first part connected with the label introduction stabilizing plate, the base body has four flat surfaces at a second part connected with the first part, the flat surfaces are connected with each other through arc-shaped transitions, wherein at least one positioning auxiliary wheel is arranged on each of two mutually opposite flat surfaces, and at least one label driving wheel is arranged on each of two other mutually opposite flat surfaces, the positioning auxiliary wheels and the label driving wheels are arranged in corresponding grooves constructed in the flat surfaces respectively, wherein two lower label driving wheels are symmetrically arranged at the lower end of the lower label guide column, and the lower label driving wheels are arranged in notches at the lower end edges of the lower label guide column. Here, the label tape is sleeved on the center guide mechanism through the flat label introduction stabilizing plate, which also plays a role in stabilizing the label tape. By designing the base body as a truncated cone at the first part connected with the label introduction stabilizing plate, the label tape is smoothly sleeved on the base body without twisting. In addition, by constructing four flat surfaces on the periphery of the base body, the outer contour of the base body of the center guide mechanism is adapted to the contour of the square label, so that the orientation of the square label can be ensured during label conveying, so that the square label is sleeved on the square bottle in the correct posture. In addition, grooves are also arranged on the base body of the center guide mechanism, which are used to mount the positioning auxiliary wheels or the label driving wheels on the one hand, and avoid the label film from being adsorbed on the base body on the other hand. The base body is made of wear-resistant and anti-static material, such as polyurethane (PUM) material.

[0007] According to an advantageous scheme, two positioning auxiliary wheels are arranged on each of two mutually opposite flat surfaces at different heights. By arranging two positioning auxiliary wheels on each flat surface, the stability is improved.

[0008] Preferably, two label driving wheels are arranged on each of two other mutually opposite flat surfaces, and the two label driving wheels are mounted in grooves at different heights. By arranging two groups of label driving wheels and corresponding grooves on the base body, the label tape can be smoothly conveyed downward.

[0009] It is also advantageous that the lower label guide column is designed as a cylindrical shape and is detachably connected with the base body. By designing the lower label guide column to be detachable, the most suitable lower label guide column can be selected according to the label size of the container to be sleeved. Of course, it is also possible to consider that the lower label guide column is designed as an integral part of the base body.

[0010] Preferably, an annular cutting gap is formed between the lower index guide column and the base. A blade for cutting the label is aligned with the cutting gap, thereby facilitating positioning of the blade and ensuring that each cut is made accurately.

[0011] It is also advantageous that an elastic piece for holding the label is provided at the lower end of the lower index guide column, which is arranged above the lower index drive wheel. The cut label can be temporarily held on the lower index guide column by the elastic piece until it is time to drop the label by means of the lower index drive wheel.

[0012] Preferably, the elastic piece is arranged symmetrically in a receiving groove on the circumference of the lower index guide column and protrudes from the receiving groove. For example, two or four elastic pieces are arranged symmetrically on the circumference of the lower index guide column, each in a respective receiving groove and protruding from the receiving groove.

[0013] Preferably, a reflector for reflecting the sensor signal is provided between the two label drive wheels. Thereby, the label web can be detected in cooperation with a receiver arranged outside the central guide mechanism for square labels.

[0014] Advantageously, the length and diameter of the lower index guide column are designed to match the label parameters for a single container, and the circumference of the lower index guide column is provided with an inscription indicating the corresponding label parameters. The label parameters are, for example, the length of the cut label, the diameter of the label, and the like.

[0015] The utility model also provides a sleeving label equipment, the sleeving label equipment includes bottle separating mechanism, sleeving label mechanism and main heat shrinkage furnace, wherein, be equipped with preceding and described central guide mechanism for square label in the sleeving label mechanism.

[0016] In the central guide mechanism for square labels and the sleeving label mechanism according to the application, by matching the profile of the base with the profile of the directional label, the directional label is conveyed in the correct posture and orientation, and the square label is sleeved into the corresponding container through the specially designed lower index guide column, so that the label is not offset, and the sleeving quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective view of the central guide mechanism for square labels according to the utility model;

[0018] Figure 2 is Figure 1 another perspective view of the central guide mechanism in

[0019] Figure 3 is Figure 1 a side view of the central guide mechanism shown in

[0020] Figure 4is a perspective view of a lower index guide post of the central guide mechanism. DETAILED DESCRIPTION

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

[0022] In the existing labeling equipment, the label tape is usually guided towards the container to be labeled via a cylindrical guide mechanism. However, the label film is easily adsorbed on the cylindrical guide mechanism, which adversely affects the label conveying. On the other hand, for the square label required for a square bottle, it is easy to deflect during the process of being sleeved into the cylindrical guide mechanism and being guided downward, so that it cannot be sleeved onto the container in the desired orientation or posture finally, affecting the final labeling effect.

[0023] Figure 1 A perspective view of a central guide mechanism 100 for square labels according to the present application is shown. Here, the central guide mechanism 100 for square labels comprises a label introduction stabilizing plate 1, a base body 2 and a lower index guide post 3 connected below the base body 2. The label introduction stabilizing plate 1 is designed as a thin metal plate, which is used on the one hand to sleeve the label tape into the central guide mechanism 100 and on the other hand to reduce the shaking of the label tape so that the label tape is stably conveyed. The label introduction stabilizing plate 1 is fixedly arranged at the upper end of the base body 2. Along the conveying direction of the label tape, i.e. in the vertical direction, an elongated recess 4 is formed on the label introduction stabilizing plate 1. The elongated recess 4 is designed for an optical sensor, in particular so that the signal of the optical sensor can pass through the label introduction stabilizing plate 1. The optical sensor is for example a color sensor for detecting the color of the pattern on the label tape, a label tape speed sensor, etc.

[0024] The first part of the base body 2, which is connected to the label introduction stabilizer plate 1, is designed as a truncated cone. The tapering of the diameter makes it easier for the label tape to be fitted onto the central guide mechanism without twisting or deflecting during the fitting process. The second part of the base body 2, which is connected to the first part, has four flattened surfaces 5. Here, a "flattened surface" is a flat surface which is obtained by flattening a cylindrical surface. The flattened surfaces are connected to one another by arc-shaped transitions 6. One or more grooves are formed in each flattened surface. The combination of flattened surfaces and grooves reliably prevents the label tape film from sticking to the base body. At least one positioning auxiliary wheel 7 is arranged on each of two mutually opposite flattened surfaces. The positioning auxiliary wheels 7 on the base body 2 of the central guide mechanism 100 and the counter-positioning wheels 8 arranged on the label applicator frame cooperate to keep the central guide mechanism 100 in the vertical position. Here, the positioning auxiliary wheels 7 and the counter-positioning wheels 8 are not driven, but can be rotated by the label tape. At least one label drive wheel 9 is arranged on each of two mutually opposite other flattened surfaces. The label drive wheels 9 cooperate with the counter-label drive wheels 13 arranged on the frame to hold the base body 2 and to move the label tape. For example, the label drive wheels 9 are rotated by a drive mechanism, thereby moving the label tape downwards. Here, the positioning auxiliary wheels 7 and the label drive wheels 9 are arranged in corresponding grooves 10 formed in the flattened surfaces.

[0025] Two lower label drive wheels 11 are arranged symmetrically at the lower end of the lower label guide post 3. The lower label drive wheels 11 are arranged in notches 12 at the lower end edges of the lower label guide post. The lower label drive wheels 11 cooperate with the counter-lower label drive wheels 14 arranged on the frame to move the cut label downwards onto the container located directly below the central guide mechanism 100. The lower label guide post 3 is designed as a cylinder and is detachably connected to the base body 2. However, it is also conceivable to design the lower label guide post 3 as an integral part of the base body 2. However, a two-part design is preferred, because different lower label guide posts 3 can be selected depending on the size of the container to be labeled or the size of the individual label. An annular cutting gap is formed between the lower label guide post and the base body 2. The length and diameter of the lower label guide post are designed to correspond to the label parameters for an individual container, and the circumference of the lower label guide post is provided with an inscription indicating the corresponding label parameters. The label parameters are, for example, the length of the cut label, the diameter of the label, and the like.

[0026] Figure 2 A perspective view is shown which is similar to Figure 1 However, the counter-positioning wheels, the counter-label drive wheels and the counter-lower label drive wheels arranged on the frame are not shown in Figure 2 Figure 2 ​It can be clearly seen that two positioning auxiliary wheels 7 are arranged in a groove. In addition, two label drive wheels 9 at different heights are provided on another flattened surface. These two label drive wheels are respectively installed in grooves of different heights.

[0027] Figure 3 make Figure 1 A side view of the central guide mechanism 100 shown. Figure 3 As can be seen, two grooves are provided on the flattened surface, and a label drive wheel 9 is installed in each groove. That is, two label drive wheels 9 are provided on the same flattened surface. A reflector 15 for reflecting sensor signals is provided between the two label drive wheels 9.

[0028] Figure 4 A partial perspective view of subscript guide post 3 is shown. Figure 4 As shown, an elastic tab 16 for holding the label is provided at the lower end of the subscript guide post 3, and the elastic tab 16 is arranged above the subscript drive wheel 11. Here, the elastic tab 16 is symmetrically arranged in the receiving groove 17 on the periphery of the subscript guide post 3 and protrudes from the receiving groove. That is, there are two elastic tabs on the periphery of the subscript guide post. Of course, three or four elastic tabs can also be considered. The elastic tab 16 can temporarily hold the cut label on the subscript guide post 3 to prevent the cut label from sliding down uncontrollably due to gravity or inertia. The cut label is only allowed to fall when the controller causes the upper label to continue to be fed downward. The elastic tab extends from the receiving groove in a downward-sloping manner. The end of the elastic tab is designed to be tongue-shaped.

[0029] This utility model also discloses a labeling device. The labeling device includes a bottle-separating mechanism, a labeling mechanism, and a main heat shrink oven. The labeling mechanism includes the aforementioned central guiding mechanism for square labels. Here, the base of the central guiding mechanism has four flattened surfaces, each with a groove. A positioning auxiliary wheel or a label-driving wheel is located in the groove. This prevents the label film from adhering to the base surface and forms a contour corresponding to the square label, preventing the square label from deflecting or shifting during transport and ensuring that the label is fitted onto the square container with the desired orientation and posture. Additionally, an elastic sheet can be used to prevent the label from slipping. Overall, this invention realizes a central guiding mechanism and labeling device optimized for square labels.

[0030] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A center guiding mechanism for square labels, the center guiding mechanism comprising a label import stabilizing plate, a substrate, and a subscript guide post connected below the substrate, the label import stabilizing plate being fixedly disposed at the upper end of the substrate, characterized in that, Along the label conveying direction, the label guide stabilizing plate has an elongated notch for a photoelectric sensor. The first part of the substrate connected to the label guide stabilizing plate is designed as a truncated cone. The second part of the substrate connected to the first part has four flattened surfaces. The flattened surfaces are connected to each other by arc-shaped transitions. At least one positioning auxiliary wheel is provided on two opposing flattened surfaces, and at least one label driving wheel is provided on two other opposing flattened surfaces. The positioning auxiliary wheel and the label driving wheel are respectively arranged in corresponding grooves constructed in the flattened surfaces. Two index driving wheels are symmetrically provided at the lower end of the index guide post. These two index driving wheels are respectively arranged in the notch at the lower edge of the index guide post.

2. The center guiding mechanism for square labels according to claim 1, characterized in that, Two positioning auxiliary wheels are arranged at different heights on two opposite flattened surfaces.

3. The center guiding mechanism for square labels according to claim 1 or 2, characterized in that, Two label drive wheels are respectively provided on two other flattened surfaces that are opposite each other, and these two label drive wheels are respectively installed in grooves of different heights.

4. The center guiding mechanism for square labels according to claim 1 or 2, characterized in that, The subscript guide post is designed in a cylindrical shape and is detachably connected to the base.

5. The center guiding mechanism for square labels according to claim 4, characterized in that, An annular cutting slit is formed between the subscript guide post and the substrate.

6. The center guiding mechanism for square labels according to claim 1 or 2, characterized in that, An elastic tab for holding the label is provided at the lower end of the subscript guide post, and the elastic tab is arranged above the subscript drive wheel.

7. The center guiding mechanism for square labels according to claim 6, characterized in that, The elastic sheet is symmetrically arranged in the receiving groove on the periphery of the subscript guide post and protrudes from the receiving groove.

8. The center guiding mechanism for square labels according to claim 3, characterized in that, A reflector for reflecting sensor signals is provided between the two tag drive wheels.

9. The center guiding mechanism for square labels according to claim 1 or 2, characterized in that, The length and diameter of the subscript guide post are designed to fit the label parameters for a single container, and an inscription indicating the corresponding label parameters is provided around the periphery of the subscript guide post.

10. A labeling device, characterized in that, The labeling equipment includes a bottle separating mechanism, a labeling mechanism, and a main heat shrink oven, wherein the labeling mechanism is provided with a center guiding mechanism for square labels according to any one of claims 1-9.

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