Labelling machine grabbing drum and labelling machine

Abstract

The utility model discloses a grabbing drum of a labeling machine and a labeling machine. The grabbing drum is used to label bottles. The grabbing drum includes a grabbing drum body and a negative pressure suction part. The negative pressure suction part includes a starting suction block and a terminal suction block which are spaced apart in the circumferential direction of the grabbing drum body. In the rotation direction of the grabbing drum body, the starting suction block is located upstream, and the terminal suction block is located downstream. The terminal suction block has a first suction hole surface and a second suction hole surface, the first suction hole surface is located downstream of the second suction hole surface, the first suction hole surface includes at least two first suction hole columns, and the first suction holes of two adjacent first suction hole columns in at least two first suction hole columns are staggered in the height direction. The first suction holes of two adjacent first suction hole columns of the terminal suction block of the utility model are staggered in the height direction, so that the regions of different heights of the label are all coated with glue, which increases the glue coating area and thus improves the pasting quality of the label.

Description

Technical Field

[0001] The utility model relates to the technical field of labeling machines, in particular to a label grabbing drum of a labeling machine and a labeling machine. Background Art

[0002] The labeling machine is used to label the circumference of the bottle. The labeling machine generally includes a bottle transmission line, a bottle tray, a label grabbing drum, a label transmission line, a cutting drum, a label grabbing drum and a label coating drum. The bottle transmission line transfers the bottles to the bottle tray in sequence, and a plurality of bearing stations for placing the bottles are arranged on the circumference of the bottle tray. The label transmission line transfers the continuous label tape to the cutting drum, and the cutting drum wraps the label tape and transmits it forward, and its moving knife and fixed knife separate the label tape into labels of fixed length. The label grabbing drum uses the vacuum adsorption principle to adsorb and grab the labels cut by the cutting drum, and then the back of the label adsorbed by the label grabbing drum is coated with glue through the label coating drum. The label grabbing drum and the bottle tray rotate in opposite directions, and then the label is driven close to the bottle body through the label grabbing drum, and the label is pasted on the bottle body.

[0003] During the research process, it was found that the label pasted on the bottle body would have the problem of edge warping. How to improve this problem needs to be solved urgently.

[0004] It should be noted that the statements in this background technology section only provide background technology related to the present invention and do not necessarily constitute prior art. Utility Model Content

[0005] The utility model provides a label grabbing drum of a labeling machine and a labeling machine, so as to improve the pasting quality of labels.

[0006] The first aspect of the utility model provides a label grabbing drum of a labeling machine, which is used to label a bottle, comprising:

[0007] The grabbing drum body is rotatably arranged; and

[0008] The negative pressure suction part is used to absorb the label by using negative pressure, and the negative pressure suction part includes a starting suction block and a terminal suction block arranged at intervals in the circumferential direction of the grabbing drum body. The starting suction block is used to absorb the starting end of the label, and the terminal suction block is used to absorb the terminal of the label and make the terminal of the label cover and stick to the outside of the starting end. In the rotation direction of the grabbing drum body, the starting suction block is located upstream, and the terminal suction block is located downstream;

[0009] Among them, the terminal suction block has a first suction hole surface and a second suction hole surface, the first suction hole surface is located downstream of the second suction hole surface, the first suction hole surface includes at least two first suction hole columns, each first suction hole column includes a plurality of first suction holes arranged at intervals in the height direction, and the first suction holes of two adjacent first suction hole columns in at least two first suction hole columns are staggered in the height direction.

[0010] In some embodiments, at least two first suction hole columns include a first end suction hole column located at the downstream end and a first adjacent suction hole column arranged adjacent to the first end suction hole column, the number of first suction holes in the first end suction hole column is less than the number of first suction holes in the first adjacent suction hole column, and in the height direction, each first suction hole in the first end suction hole column is located between two adjacent first suction holes in the first adjacent suction hole column.

[0011] In some embodiments, the at least two first suction hole arrays include a first end suction hole array located at the downstream end, and the distance between the center line of the first end suction hole array and the edge of the terminal suction block ranges from 3 mm to 5 mm.

[0012] In some embodiments, the second suction hole surface includes a second suction hole column, and the second suction hole column includes a plurality of second suction holes spaced apart in the height direction.

[0013] In some embodiments, the second suction hole comprises a countersunk hole.

[0014] In some embodiments, the first suction hole includes a straight hole, the countersunk hole includes a main hole section close to one end of the grabbing drum body and a countersunk hole section away from one end of the grabbing drum body, the aperture of the countersunk hole section is larger than the aperture of the main hole section, and the aperture of the straight hole is larger than the aperture of the main hole section and smaller than the aperture of the countersunk hole section.

[0015] In some embodiments, the first suction hole comprises a straight hole.

[0016] In some embodiments, the second suction hole surface is an inclined surface, and in the rotation direction of the grabbing drum body, the distance between the second suction hole surface and the rotation axis of the grabbing drum body gradually decreases.

[0017] In some embodiments, the starting suction block has a first suction hole surface and a second suction hole surface, the first suction hole surface is located upstream of the second suction hole surface, the first suction hole surface includes at least two first suction hole columns, each first suction hole column includes a plurality of first suction holes spaced apart in the height direction, and the first suction holes of two adjacent first suction hole columns in at least two first suction hole columns are flush in the height direction.

[0018] In some embodiments, the second suction hole surface is an inclined surface, and in the rotation direction of the grabbing drum body, the distance between the second suction hole surface and the rotation axis of the grabbing drum body gradually increases.

[0019] The second aspect of the utility model provides a labeling machine, comprising the above-mentioned label grabbing drum and a bottle supporting plate, the bottle supporting plate is rotatably arranged and carries a plurality of bottle bodies arranged at intervals along the circumferential direction, and the label grabbing drum is used to stick labels to the bottle bodies.

[0020] Based on the technical solution provided by the utility model, the grabbing drum of the labeling machine is used to label the bottle body. The grabbing drum includes a grabbing drum body and a negative pressure suction part, and the grabbing drum body is rotatably arranged. The negative pressure suction part is used to absorb the label by using negative pressure. And the negative pressure suction part includes a starting suction block and a terminal suction block arranged at intervals in the circumferential direction of the grabbing drum body, the starting suction block is used to absorb the starting end of the label, and the terminal suction block is used to absorb the terminal end of the label and make the terminal end of the label cover and stick to the outside of the starting end. In the rotation direction of the grabbing drum body, the starting suction block is located upstream, and the terminal suction block is located downstream. Among them, the terminal suction block has a first suction hole surface and a second suction hole surface, the first suction hole surface is located downstream of the second suction hole surface, the first suction hole surface includes at least two first suction hole columns, each first suction hole column includes a plurality of first suction holes arranged at intervals in the height direction, and the first suction holes of two adjacent first suction hole columns in at least two first suction hole columns are staggered in the height direction. The two adjacent first suction hole rows on the first suction hole surface of the terminal suction block of the utility model and the first suction holes of the two adjacent first suction hole rows are staggered in the height direction, so that areas of different heights of the label are all coated with glue, thereby increasing the glue coating area and improving the pasting quality of the label.

[0021] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0023] Figure 1 It is a partial structural schematic diagram of a labeling machine according to some embodiments of the utility model.

[0024] Figure 2 This is a schematic diagram of the front view structure of the terminal suction block of the labeling machine of some embodiments of the utility model.

[0025] Figure 3 This is a schematic diagram of the main structure of the starting suction block of the labeling machine of some embodiments of the utility model. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0028] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used here are interpreted accordingly.

[0029] As described above, the inventors found during the research that the label pasted on the bottle body has the problem of edge warping, which affects the quality of the product. Specifically, when pasting the label, the beginning of the label will be pasted on the bottle body first, and then the end of the label will be pasted on the outside of the beginning after rotating along the circumference of the bottle body. That is to say, the beginning of the label is pressed on the inside of the end of the label, and the end of the label is pasted on the outside of the beginning, so it is the end of the label that has the problem of edge warping.

[0030] Through in-depth research and experiments on this issue, the inventor found that an important reason for the edge warping problem is that the glue coating area at the edge is not enough, which leads to weak adhesion. In response to this problem, the utility model proposes to improve the distribution of the suction holes of the terminal suction block of the grabbing drum for sucking the terminal of the label. Specifically, the suction holes of the terminal suction block are set to be staggered, so that different positions of the label can be glued, thereby increasing the glue coating area of ​​the label, especially the glue coating area at the edge, thereby effectively avoiding the edge warping problem and improving the pasting quality of the label.

[0031] According to the following Figures 1 to 3 The structure and working process of the label grabbing drum of the labeling machine and the labeling machine in some embodiments of the utility model are described in detail.

[0032] refer to Figure 1 The embodiment of the utility model provides a labeling machine, comprising a label grabbing drum 10 and a bottle supporting plate 20. The bottle supporting plate 20 is rotatably arranged and carries a plurality of bottles A arranged at intervals along the circumferential direction. The label grabbing drum 10 is used to stick a label onto the bottle A.

[0033] like Figure 1 As shown, the bottle tray 20 is rotatably arranged around a first direction, and the label grabbing drum 10 is rotatably arranged around a second direction, and the first direction is arranged opposite to the second direction. The label grabbing drum 10 is used to absorb the label by negative pressure and stick the label on the bottle body A during the rotation process.

[0034] refer to Figure 1 and Figure 2 The embodiment of the utility model provides a grabbing drum 10 of a labeling machine, which is used to label bottles. The grabbing drum 10 includes a grabbing drum body 11 and a negative pressure suction part arranged on the grabbing drum body 11. The grabbing drum body 11 is rotatably arranged. The negative pressure suction part is used to absorb the label by using negative pressure. And the negative pressure suction part includes a starting suction block 13 and a terminal suction block 12 arranged at intervals in the circumferential direction of the grabbing drum body 11. The starting suction block 13 is used to absorb the starting end of the label. The terminal suction block 12 is used to absorb the terminal end of the label and make the terminal end of the label cover and stick to the outside of the starting end. In the rotation direction of the grabbing drum body 11, the starting suction block 13 is located upstream, and the terminal suction block 12 is located downstream.

[0035] The terminal suction block 12 has a first suction hole surface 121 and a second suction hole surface 122. The first suction hole surface 121 is located downstream of the second suction hole surface 122. The first suction hole surface 121 includes at least two first suction hole columns 121a, 121b, each of which includes a plurality of first suction holes 1211 spaced apart in the height direction. The first suction holes of two adjacent first suction hole columns in at least two first suction hole columns are staggered in the height direction.

[0036] The negative pressure suction part of the grabbing drum 10 of the utility model embodiment uses negative pressure to suck and grab the label. Specifically, the suction block of the negative pressure suction part has a negative pressure suction hole to suck the label by negative pressure. Since the suction is performed by negative pressure, the position of the label corresponding to the negative pressure suction hole will be concave inward under the suction of negative pressure. Therefore, when applying glue to the label, the position of the label corresponding to the negative pressure suction hole cannot be glued, so the position of the negative pressure suction hole will affect the position of gluing.

[0037] Based on the above findings, Figure 2 As shown, two adjacent first suction hole columns on the first suction hole surface 121 of the terminal suction block 12 of the embodiment of the utility model, and the first suction holes of the two adjacent first suction hole columns are staggered in the height direction, so that areas of different heights of the label are all coated with glue, thereby increasing the glue coating area and improving the pasting quality of the label.

[0038] On the other hand, because the first suction holes of two adjacent first suction hole columns on the first suction hole surface 121 of the terminal suction block 12 are staggered in the height direction, the positions of the label at different heights are all subjected to negative pressure adsorption, thereby improving the adsorption force of the label, preventing the label from loosening during high-speed rotation, and further improving the pasting quality of the label.

[0039] In some embodiments, at least two first suction hole columns include a first end suction hole column 121b located at the downstream end and a first adjacent suction hole column 121a disposed adjacent to the first end suction hole column 121b. The number of first suction holes in the first end suction hole column 121b is less than the number of first suction holes in the first adjacent suction hole column 121a. In the height direction X, each first suction hole in the first end suction hole column is located between two adjacent first suction holes in the first adjacent suction hole column 121a. Figure 2 As shown, in the embodiment of the utility model, the number of the first suction holes in the first end suction hole column 121b located at the end is set to be small, so that Figure 2From the distribution of the first suction holes, it can be seen that the positions of the first suction holes of the first end suction hole row 121b are more concentrated toward the middle than the positions of the first suction holes of the first adjacent suction hole row 121a, so that the areas at both ends of the area corresponding to the first end suction hole row 121b of the label are formed into glue-coated areas, that is, the glue-coated areas of the upper and lower edges are increased, so that the upper and lower edges can be bonded more tightly, thereby reducing the possibility of the edge warping of the label. The problem of the edge warping of the label is reduced, thereby improving the appearance visual effect and quality of the product.

[0040] In order to further reduce the possibility of edge warping in the length direction of the terminal of the label, in some embodiments, the position of the first end suction hole column 121b is moved toward the direction close to the first adjacent suction hole column 121a, so that the glue coating area at the terminal of the label can be increased, thereby effectively avoiding edge warping. In some embodiments, the distance between the center line of the first end suction hole column 121b and the edge of the terminal suction block 12 is 3mm to 5mm. Preferably, the distance is 4.7mm.

[0041] In some embodiments, Figure 2 As shown, the second suction hole surface 122 includes a second suction hole column. The second suction hole column includes a plurality of second suction holes 1221 spaced apart in the height direction. The terminal suction block 12 of the embodiment of the utility model is provided with a first suction hole surface 121 and a second suction hole surface 122, so that the label can be adsorbed by the plurality of suction hole columns spaced apart, and the label can be better adsorbed so that the label can be pasted under high-speed transmission.

[0042] like Figure 2 As shown, the terminal suction block 12 has a first suction hole surface 121 and a second suction hole surface 122. The first suction hole surface 121 and the second suction hole surface 122 are both planes. However, the first suction hole surface 121 and the second suction hole surface 122 are not coplanar. A ridge is formed at the middle connection of the first suction hole surface 121 and the second suction hole surface 122. At least two first suction hole columns are arranged on the first suction hole surface 121, and a second suction hole column is arranged on the second suction hole surface 122.

[0043] In some embodiments, the second suction hole 1221 includes a countersunk hole. The first suction hole 1221 is set as a countersunk hole, which can increase the adsorption area and improve the adsorption effect.

[0044] In some embodiments, the first suction hole 1211 includes a straight hole. The countersunk hole includes a main hole section near one end of the grabbing drum body 11 and a countersunk hole section away from one end of the grabbing drum body 11. The aperture of the countersunk hole section is larger than the aperture of the main hole section, and the aperture of the straight hole is larger than the aperture of the main hole section and smaller than the aperture of the countersunk hole section. The aperture of the first suction hole 1211 of the embodiment of the utility model is smaller than the aperture of the countersunk hole section of the second suction hole 1221, but the number of the first suction holes 1211 is greater than the number of the second suction holes 1221, so that the area near the end of the label can be better adsorbed.

[0045] The negative pressure suction part includes a starting suction block 13 and a terminal suction block 12 which are spaced apart in the circumferential direction of the grabbing drum body 11. A gap is provided between the starting suction block 13 and the terminal suction block 12, that is, when the label is adsorbed, the starting suction block 13 adsorbs the starting end of the label, and the terminal suction block 12 adsorbs the terminal end of the label. In some embodiments, the second suction hole surface 122 is an inclined surface. And in the rotation direction of the grabbing drum body, the distance between the second suction hole surface 122 and the rotating axis of the grabbing drum body gradually decreases. The second suction hole surface 122 is set as an inclined surface inclined forward, so that the distance between the second suction hole surface 122 and the label gradually increases, so that in the rotation direction, the adsorption force gradually decreases, and then the adsorption force is gradually reduced from the end to the middle area without adsorption, not abruptly, to prevent the label from being broken due to stress concentration during the grabbing process.

[0046] refer to Figure 3 In some embodiments, the starting suction block 13 has a third suction hole surface 131 and a fourth suction hole surface 132. The third suction hole surface 131 is located upstream of the fourth suction hole surface 132. The fourth suction hole surface 131 includes at least two third suction hole columns 131a, 131b, and each third suction hole column includes a plurality of third suction holes 1311 spaced apart in the height direction. The third suction holes of two adjacent third suction hole columns of at least two third suction hole columns are flush in the height direction.

[0047] Since the beginning of the label will be pasted on the bottle body first, the end of the label will go around and press against the outside of the beginning, so the beginning will not have the problem of warping. Therefore, the third suction holes of two adjacent third suction hole rows of the beginning suction block 13 of the embodiment of the utility model are arranged to be flush in the height direction, which can increase the suction area and improve the suction effect. Moreover, the flush arrangement of the suction holes is easy to process.

[0048] In some embodiments, the fourth suction hole surface 132 is an inclined surface. In the rotation direction of the grabbing drum body, the distance between the fourth suction hole surface 132 and the rotating shaft of the grabbing drum body gradually increases. The fourth suction hole surface 132 is set as an inclined surface tilted backward, so that in the opposite direction of the rotation direction, the distance between the fourth suction hole surface 132 and the label gradually increases. Therefore, from the beginning of the label to the area near the middle, the adsorption force gradually decreases, and then the adsorption force from the end to the middle area without adsorption is gradually reduced, not abrupt, to prevent the label from being broken due to stress concentration during the grabbing process.

[0049] In some embodiments, in the radial direction, the starting suction block 13 and the terminal suction block 12 are both protruding from the grabbing drum body 11 .

[0050] Through the description of the above embodiments, it can be seen that the staggered suction holes of the terminal suction block 12 of the embodiment of the utility model can better suck the label for high-speed transmission. Moreover, the staggered suction holes can also increase the glue coating area of ​​the upper and lower edges of the label, thereby reducing the edge warping. Moreover, the suction holes at the end are arranged inwardly to increase the glue coating area of ​​the end edge, further reducing the edge warping. Moreover, through the design of this embodiment, after verification and use, the proportion of warping is reduced by 30%.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A grabbing drum of a labeling machine, used for labeling bottles, characterized in that: include: The marking drum body (11) is rotatably arranged; and A negative pressure suction part, the negative pressure suction part is used to absorb the label by using negative pressure, and the negative pressure suction part comprises a starting suction block (13) and a terminal suction block (12) arranged at intervals in the circumferential direction of the grabbing drum body (11), the starting suction block (13) is used to absorb the starting end of the label, and the terminal suction block (12) is used to absorb the terminal of the label and make the terminal of the label cover and stick to the outside of the starting end, in the rotation direction of the grabbing drum body (11), the starting suction block (13) is located upstream, and the terminal suction block (12) is located downstream; The terminal suction block (12) comprises a first suction hole surface (121) and a second suction hole surface (122); the first suction hole surface (121) is located downstream of the second suction hole surface (122); the first suction hole surface (121) comprises at least two first suction hole columns; each of the first suction hole columns comprises a plurality of first suction holes (1211) spaced apart in a height direction; and the first suction holes of two adjacent first suction hole columns of the at least two first suction hole columns are staggered in the height direction.

2. The label grabbing drum of the labeling machine according to claim 1, characterized in that: The at least two first suction hole columns include a first end suction hole column (121b) located at the downstream end and a first adjacent suction hole column (121a) arranged adjacent to the first end suction hole column (121b), the number of first suction holes in the first end suction hole column is less than the number of first suction holes in the first adjacent suction hole column, and in the height direction, each first suction hole in the first end suction hole column is located between two adjacent first suction holes in the first adjacent suction hole column (121a).

3. The label grabbing drum of the labeling machine according to claim 1, characterized in that: The at least two first suction hole arrays include a first end suction hole array (121b) located at the downstream end, and the distance between the center line of the first end suction hole array (121b) and the edge of the terminal suction block (12) ranges from 3mm to 5mm.

4. The label grabbing drum of the labeling machine according to claim 1, characterized in that: The second suction hole surface (122) comprises a second suction hole column, and the second suction hole column comprises a plurality of second suction holes (1221) arranged at intervals in the height direction.

5. The label grabbing drum of the labeling machine according to claim 4, characterized in that: The second suction hole (1221) comprises a countersunk hole.

6. The label grabbing drum of the labeling machine according to claim 5, characterized in that: The first suction hole (1211) comprises a straight hole, and the countersunk hole comprises a main hole section close to one end of the grabbing drum body (11) and a countersunk hole section away from one end of the grabbing drum body (11), the aperture of the countersunk hole section is larger than the aperture of the main hole section, and the aperture of the straight hole is larger than the aperture of the main hole section and smaller than the aperture of the countersunk hole section.

7. The label grabbing drum of the labeling machine according to claim 1, characterized in that: The first suction hole (1211) comprises a straight hole.

8. The label grabbing drum of the labeling machine according to claim 1, characterized in that: The second suction hole surface (122) is an inclined surface, and in the rotation direction of the grabbing drum body, the distance between the second suction hole surface (122) and the rotation axis of the grabbing drum body gradually decreases.

9. The label grabbing drum of the labeling machine according to claim 1, characterized in that: The starting suction block (13) comprises a third suction hole surface (131) and a fourth suction hole surface (132); the third suction hole surface (131) is located upstream of the fourth suction hole surface (132); the third suction hole surface (131) comprises at least two third suction hole columns; each of the third suction hole columns comprises a plurality of third suction holes (1311) arranged at intervals in a height direction; and the third suction holes of two adjacent third suction hole columns of the at least two third suction hole columns are arranged flush in the height direction.

10. The label grabbing drum of the labeling machine according to claim 9, characterized in that: The fourth suction hole surface (132) is an inclined surface, and in the rotation direction of the grabbing drum body, the distance between the fourth suction hole surface (132) and the rotation axis of the grabbing drum body gradually increases.

11. A labeling machine, characterized in that: The invention comprises a label grabbing drum (10) and a bottle supporting plate (20) as claimed in any one of claims 1 to 10, wherein the bottle supporting plate (20) is rotatably arranged and carries a plurality of bottle bodies (A) arranged at intervals along the circumferential direction, and the label grabbing drum (10) is used to stick labels onto the bottle bodies (A).

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