CN216887631U - Label removing device - Google Patents

Abstract

The utility model relates to the technical field of labeling, in particular to a label removing device. This label removing devices is including pasting mark subassembly and attaching the mark roller, it includes pasting mark roller and fixed disk to paste the mark subassembly, the surface of pasting the mark roller has radially seted up radial absorption hole along it, the inside of pasting the mark roller has seted up the axial gas pocket that communicates with radial absorption hole along its axial, the bottom of pasting the mark roller is run through to the one end of axial gas pocket, it can rotate to paste the fixed disk relatively to paste the mark roller, set up the cavity that can communicate with axial gas pocket on the fixed disk, it can reject station looks butt with pasting the mark roller to attach the mark roller, when pasting the mark roller and adsorbing the label and rotating, radial absorption hole is linked together with the cavity, thereby guarantee to paste the fixed label of mark roller surface absorption, when pasting the bad label rotation of mark roller absorption to rejecting the station, the bad label of pasting the mark roller absorption is attached mark roller adhesion volume and is left. This mode of setting need not to adhere bad label on the thing of being pasted, can improve the protection to the thing of being pasted.

Description

Label removing device

Technical Field

The utility model relates to the technical field of labeling, in particular to a label removing device.

Background

The self-adhesive label (trademark) is a kind of mark and brand identification mark for daily use chemicals, medicine and food industries. The printed label can print fixed content on the label in advance, but cannot print dynamically-changed information (such as article production date, expiration date, batch information, tracing two-dimensional code and the like), the dynamic and changed information can be endowed on the surface of the label through a printing technology, and the printed label is adhered to the surface of an article through a labeling component. Industries such as food and medicine have high requirements on printing of production date, validity period and tracing codes, the printed content is correct and clear, the position is relatively stable, and the printed content is wrong, fuzzy and greatly different in position, so that the label cannot be applied to articles. When labeling, the badly printed labels need to be identified and removed.

The common practice in the existing packaging industry is to detect whether the information on the identification label is qualified or not by using a detection sensor, adhere a bad label (namely an unqualified label) to an article, then mark the article with the bad label by a system, and remove the article at a subsequent station. However, when the poor label on the surface of the article is removed at a later stage, the surface of the article is easily damaged, or the surface of the article is polluted by dirt and black, and even the article or the package is scrapped.

Therefore, it is desirable to invent a label removing device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a label removing device which can prevent an article from being removed along with a bad label and improve the protection of the article.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a label reject device comprising:

the labeling assembly comprises a labeling roller and a fixed disc, a radial adsorption hole is formed in the outer surface of the labeling roller along the radial direction of the labeling roller, an axial air hole communicated with the radial adsorption hole is formed in the labeling roller along the axial direction of the labeling roller, one end of the axial air hole penetrates through the bottom end of the labeling roller, the labeling roller can rotate relative to the fixed disc, and a cavity communicated with the axial air hole is formed in the fixed disc; and

the label attaching roller can be abutted against the labeling roller at a removing station, and when the labeling roller adsorbs labels to rotate, the radial adsorption holes are communicated with the cavity; when the labeling roller adsorbs the bad labels and rotates to the rejecting station, the bad labels adsorbed by the labeling roller are adhered and rolled off by the labeling roller.

As a preferable scheme, a plurality of radial adsorption holes are formed in the outer surface of the labeling roller at intervals, a plurality of axial air holes are formed in the labeling roller at intervals, the axial air holes are circumferentially arranged in the labeling roller, and each axial air hole is communicated with the radial adsorption hole in the corresponding area;

the cavity is circular-arc, the cavity with correspond the region the axial gas pocket is linked together, the cavity is not simultaneously with all the axial gas pocket intercommunication, radial adsorption hole adsorbs bad label rotates extremely during the rejection station, is located reject the station the radial adsorption hole corresponds the axial gas pocket with the cavity disconnection.

Preferably, the axial air holes are circumferentially arranged in the labeling roller to form air hole groups, the air hole groups are provided with a plurality of groups, the air hole groups are arranged in the labeling roller in concentric circles, the fixed disc is provided with a plurality of chambers at intervals, and each chamber corresponds to one of the air hole groups.

As a preferred scheme, two ends of the axial air hole respectively penetrate through the bottom end and the top end of the labeling roller, and compressed gas is introduced into the axial air hole.

Preferably, a first air pipe and a second air pipe which are communicated with each other are arranged in the axial air hole, a gap is formed between the outer wall of the second air pipe and the inner wall of the axial air hole, the radial adsorption hole is communicated with the gap, the chamber can introduce the compressed gas into the second air pipe and the gap through the first air pipe, and the compressed gas can be discharged through the second air pipe.

Preferably, the label rejecting device further comprises an elastic traction member configured to pull the labeling roller into abutment with the labeling roller.

Preferably, the label rejecting device further comprises an air cylinder configured to drive the labeling roller to abut against the labeling roller.

Preferably, the labeling roller is positioned at the rear end of the labeling station, and when the labeling roller adsorbs the qualified labels and rotates to the labeling station, the labeling roller adheres the adsorbed qualified labels to the attached objects.

Preferably, the label rejecting device further comprises a driving assembly, the driving assembly selectively drives the label attaching roller to abut against the labeling roller, and when the labeling roller adsorbs the bad labels, the driving assembly drives the label attaching roller to abut against the labeling roller.

Preferably, the labeling assembly further comprises a sealing wear-resistant disc arranged between the labeling roller and the fixed disc.

Preferably, the labeling assembly further comprises an elastic member, the elastic member is arranged on the end face, away from the fixed disc, of the labeling roller along the axial direction of the labeling roller, and the elastic member is configured to press the labeling roller downwards along the axial direction of the labeling roller.

The utility model has the beneficial effects that:

the utility model provides a label removing device which comprises a labeling assembly and a labeling roller, wherein the labeling assembly comprises a labeling roller and a fixed disc, the outer surface of the labeling roller is provided with radial adsorption holes along the radial direction, the inner part of the labeling roller is provided with axial air holes communicated with the radial adsorption holes along the axial direction, one end of each axial air hole penetrates through the bottom end of the labeling roller, the labeling roller can rotate relative to the fixed disc, the fixed disc is provided with a chamber capable of being communicated with the axial air holes, the labeling roller can abut against the labeling roller at a removing station, when the labeling roller adsorbs a label to rotate, the radial adsorption holes are communicated with the chamber, so that the outer surface of the labeling roller is ensured to adsorb and fix the label, and when the labeling roller adsorbs a bad label and rotates to the removing station, the bad label adsorbed by the labeling roller is adhered and rolled off. Through with bad label adhesion on attaching the mark roller, need not to adhere bad label on the adherend, can avoid the adherend to be rejected along with bad label together, prevent that follow-up carrying out label to the adherend and get rid of work to improve the protection to the adherend.

Drawings

Fig. 1 is a schematic structural diagram of a label rejecting apparatus according to an embodiment of the present invention;

fig. 2 is a partial cross-sectional view of a labeling assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a labeling roller according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a fixing tray according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a label rejecting apparatus according to a second embodiment of the present invention;

fig. 6 is a partial cross-sectional view of a labeling assembly provided in accordance with a third embodiment of the present invention.

In the figure:

100. a label rejecting device; 200. a label delivery device; 300. a material roller; 400. a substrate;

1. labeling the assembly; 11. labeling rollers; 111. radial adsorption holes; 112. axial air holes; 1121. a first air pipe; 1122. a second air pipe; 12. fixing the disc; 121. a chamber; 13. sealing the wear-resistant disc; 131. a through hole; 14. an elastic member; 15. a cover plate; 2. attaching a label roller; 3. an elastic traction member; 4. a drive assembly; 41. a drive member; 42. a connecting rod.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Example one

As shown in fig. 1, the present embodiment provides a label removing device 100, which is mainly used to remove labels with wrong, fuzzy, and large position difference (i.e. bad labels), so as to ensure that all labels adhered to the surface of an object 400 are qualified labels, and ensure the qualified rate of label adhesion.

Specifically, as shown in fig. 1, the label removing device 100 includes a labeling assembly 1, a labeling roller 2 and a detecting assembly (not shown in the figure), wherein the detecting assembly is used for detecting whether the label fed to the labeling assembly 1 by the label feeding device 200 is a bad label, that is, whether the label is qualified, when the label detected by the detecting assembly is a qualified label, the labeling assembly 1 drives the qualified label to rotate to the attaching station as shown in the arrow direction in fig. 1, the material roller 300 drives the object 400 to abut against the labeling assembly 1, so that the qualified label driven by the labeling assembly 1 adheres to the object 400, when the label detected by the detecting assembly is a bad label, the labeling assembly 1 drives the bad label to rotate to the removing station, the labeling roller 2 can abut against the labeling assembly 1 at the removing station, so that the bad label driven by the labeling assembly 1 adheres to the labeling roller 2, thus, the defective labels can be eliminated. This mode of setting is through on attaching the mark roller 2 with bad label adhesion, need not to adhere bad label on the thing 400 that is pasted, can avoid the thing 400 that is pasted because paste bad label and be rejected, prevents that follow-up to the thing 400 that is pasted from carrying out the label and getting rid of the work to improve the protection to the thing 400 that is pasted. It should be noted that the detection component may be an industrial camera or other detection devices, and the embodiment does not specifically limit the specific form of the detection component.

Referring to fig. 2, a specific structure of the labeling assembly 1 is described, as shown in fig. 2, the labeling assembly 1 includes a labeling roller 11 and a fixing plate 12, wherein a radial adsorption hole 111 is formed on an outer surface of the labeling roller 11 along a radial direction thereof, an axial air hole 112 communicated with the radial adsorption hole 111 is formed in the labeling roller 11 along an axial direction thereof, one end of the axial air hole 112 penetrates through a bottom end of the labeling roller 11, a chamber 121 capable of being communicated with the axial air hole 112 is formed in the fixing plate 12, the labeling roller 11 is capable of rotating relative to the fixing plate 12, when the chamber 121 is communicated with the axial air hole 112 and the radial adsorption hole 111, as shown by an arrow in fig. 2, negative pressure is generated in the axial air hole 112 and the radial adsorption hole 111 by sucking air into the chamber 121, so that the outer surface of the labeling roller 11 can be ensured to adsorb a label to rotate, when the detection assembly detects that the label adsorbed by the labeling roller 11 is a bad label, and when the labeling roller 11 adsorbs the bad labels and rotates to the rejecting station, the bad labels adsorbed by the labeling roller 11 are adhered and rolled off by the labeling roller 2. Through set up radial absorption hole 111 and axial gas pocket 112 that are linked together on labelling roller 11, provide the gas circuit passageway for labelling roller 11 surface absorption fixed label, simple structure also is convenient for realize. Note that, since the label is made of a lightweight material, the suction force of the radial suction holes 111 to the label is moderate, and the label is sticky on the side from which the label is wound, and a defective label can be adhered and wound off by the label attachment roller 2 even under the suction force of the radial suction holes 111.

Preferably, when the labeling roller 11 rotates to the removing station relative to the fixed disk 12, the axial air hole 112 is disconnected from the chamber 121, and when air is sucked into the chamber 121, negative pressure is not generated in the axial air hole 112 and the radial suction hole 111 any more, so that the bad labels sucked by the labeling roller 11 are adhered and rolled off by the labeling roller 2. This mode of setting up makes and is located radial absorption hole 111 of rejecting station department on the labeling roller 11 and no longer produces the adsorption affinity to bad label, and the bad label of being convenient for more is rolled up by attaching 2 adhesion of labeling roller and is separated for it is more reliable and more stable to the rejection of bad label.

Specifically, as shown in fig. 2 to 4, a plurality of radial adsorption holes 111 are spaced on the outer surface of the labeling roller 11, a plurality of axial air holes 112 are spaced inside the labeling roller 11, the plurality of axial air holes 112 are circumferentially arranged inside the labeling roller 11, each axial air hole 112 is communicated with the corresponding radial adsorption hole 111, the chamber 121 is arc-shaped, the chamber 121 is communicated with the corresponding axial air hole 112, the chamber 121 is not communicated with all the axial air holes 112 at the same time, when the radial adsorption holes 111 adsorb poor labels and rotate to the rejection station, the axial air hole 112 corresponding to the radial adsorption hole 111 located at the rejection station is disconnected from the chamber 121, at this time, when the air suction device sucks air into the chamber 121, the chamber 121 does not suck air into the axial air hole 112 and the radial adsorption hole 111 corresponding to the rejection station area any more, so as to avoid the radial adsorption hole 111 located at the rejection station adsorbing poor labels, facilitating the defective label to be adhered and wound off by the label attaching roller 2.

Preferably, as shown in fig. 3 and 4, the plurality of axial air holes 112 are circumferentially arranged inside the labeling roller 11 to form air hole groups, the air hole groups are arranged in a plurality of groups, the plurality of groups of air hole groups are concentrically arranged inside the labeling roller 11, the plurality of chambers 121 are arranged on the fixed disk 12 at intervals, and each chamber 121 corresponds to one of the air hole groups. Through setting up multiunit gas pocket group and cavity 121, improved the distribution density of radial adsorption hole 111 in labeling roller 11 surface, improved labeling roller 11 to the fixed effect of label absorption. It should be noted that, in the present embodiment, two sets of air hole sets are provided, and in other embodiments, three or even more sets of air hole sets may be provided.

In order to prevent the air leakage in the rotating gap between the labeling roller 11 and the fixed disk 12 when the air suction device sucks air into the chamber 121, as shown in fig. 2, the labeling assembly 1 further comprises an elastic member 14, the elastic member 14 is arranged on the labeling roller 11, the elastic member 14 is axially arranged on the end surface of the labeling roller 11 far away from the fixed disk 12 along the labeling roller 11, and the elastic member 14 can press the labeling roller 11 downwards along the axial direction of the labeling roller 11, so that the connection between the labeling roller 11 and the fixed disk 12 is ensured to be tighter, and the sealing effect is improved. Specifically, the elastic member 14 may be a compression spring, which has good elasticity and can push the labeling roller 11 to move toward the fixing plate 12, so that even if the labeling roller 11 or the fixing plate 12 is worn, the elastic member 14 can press the labeling roller 11 to be tightly attached to the fixing plate 12, thereby ensuring the sealing property. Moreover, the pressure spring can also prevent the labeling roller 11 from being pressed down rigidly, so that the protection of the labeling roller 11 and the fixed disc 12 is improved.

Preferably, as shown in fig. 2, labelling assembly 1 further includes a cover plate 15, cover plate 15 is disposed above labelling roller 11, two ends of elastic member 14 are respectively abutted against cover plate 15 and labelling roller 11, and by adjusting the connection distance between cover plate 15 and labelling roller 11, the abutting force of elastic member 14 on labelling roller 11 can be adjusted, so that the adjustment is more flexible.

Further, as shown in fig. 2, labeling assembly 1 further includes a sealing wear-resistant disc 13, sealing wear-resistant disc 13 is disposed between labeling roller 11 and fixed disc 12, and by disposing sealing wear-resistant disc 13, not only is the sealing performance of connection between labeling roller 11 and fixed disc 12 improved, but also the friction damage to labeling roller 11 is reduced. It should be noted that the seal wear-resistant disc 13 may be made of a soft material, so as to improve the sealing effect and reduce the rigid wear.

Specifically, in the present embodiment, as shown in fig. 2, the sealing wear-resistant disc 13 is fixed on the labeling roller 11, and the sealing wear-resistant disc 13 rotates together with the rotation of the labeling roller 11 relative to the fixed disc 12. Moreover, the sealing wear-resistant disc 13 is provided with a through hole 131 communicated with the axial air hole 112, so that the chamber 121 is ensured to be communicated with the axial air hole 112 through the through hole 131.

It should be noted that, in other embodiments, the sealing wear-resistant disc 13 may also be fixed on the fixed disc 12, the labeling roller 11 rotates relative to the sealing wear-resistant disc 13 and the fixed disc 12, and the sealing wear-resistant disc 13 is provided with a through hole 131 corresponding to the chamber 121, so as to ensure that the chamber 121 is communicated with the axial air hole 112 through the through hole 131.

It should be noted that, in this embodiment, as shown in fig. 1, the labeling roller 2 is located at the rear end of the labeling station, and when the detecting component detects that the label adsorbed by the labeling roller 11 is a qualified label and the labeling roller 11 drives the qualified label to rotate to the labeling station, the material roller 300 drives the attached object 400 to abut against the labeling roller 11 at the attaching station, so as to ensure that the labeling roller 11 adheres the adsorbed qualified label to the attached object 400. When the detection assembly detects that the label adsorbed by the labeling roller 11 is a bad label, the material roller 300 cannot drive the object 400 to be pasted to abut against the labeling roller 11 at the pasting station, the labeling roller 11 adsorbs the bad label to continue rotating at the moment, and after the labeling roller 11 adsorbs the bad label to rotate to the rejecting station, the labeling roller 2 abuts against the labeling assembly 1 at the rejecting station so that the bad label driven by the labeling roller 11 is adhered to and rolled away by the labeling roller 2.

It should be noted that, in other embodiments, because the material roller 300 has a rotation time gap, that is, the next object 400 is rotated to the attaching station by the material roller 300 and has a time gap, in this time gap, the labeling roller 11 can adsorb a bad label and rotate to the removing station to remove the bad label (or the bad label adsorbed by the labeling roller 11 rotates away from the labeling station and will be removed after rotating to the removing station along with the continuous rotation of the labeling roller 11), when the next object 400 rotates to the labeling station, the label sending device 200 sends out the next label, which is adsorbed by the labeling roller 11 and rotates to the labeling station; when the detection assembly detects that the continuous multiple labels are bad labels and cannot be rejected in time, the system stops to give an alarm, and prompts an operator to detect the state of the front-section label. Specifically, the labeling roller 11 is driven by a servo motor, and the rotation stroke of the servo motor driving the labeling roller 11 is controllable, so that the bad label is prevented from being adhered and rolled off by the object 400.

Preferably, as shown in fig. 1, the label rejecting apparatus 100 further includes an elastic traction member 3, the elastic traction member 3 is used for drawing the labeling roller 2 to abut against the labeling roller 11, and after the labeling roller 2 abuts against the labeling roller 11, the labeling roller 11 can drive the labeling roller 2 to rotate, so that the labeling roller 2 rolls off the defective labels adhered on the labeling roller 11. Draw mark roller 2 and mark roller 11 looks butt through setting up elasticity and drawing piece 3, can guarantee that the bad label that mark roller 11 drove contacts with mark roller 2 to be attached mark roller 2 adhesion and roll off. After the label attaching roller 2 is attached with a plurality of bad labels, the outer diameter of the label attaching roller 2 is enlarged, the elastic traction piece 3 can always pull the label attaching roller 2 to be tightly abutted to the label attaching roller 11, the label attaching roller 2 rotates along with the rotation of the label attaching roller 11, and the defective labels are better adhered and separated. In addition, through setting up elasticity and drawing piece 3, need not to set up electrically controlled device and realize attaching the drive of mark roller 2, the structure is more simple and convenient, also is convenient for operate. Specifically, the elastic traction piece 3 can be a tension spring, and the tension spring has good elastic effect and high reliability.

It should be noted that, in other embodiments, the label rejecting apparatus 100 may further include an air cylinder to drive the label attaching roller 2 to abut against the labeling roller 11, and when a plurality of defective labels are attached to the label attaching roller 2, so that the outer diameter of the label attaching roller 2 is increased, the movable rod of the air cylinder is compressed and slightly retreated, thereby preventing the air cylinder from excessively driving the label attaching roller 2 to abut against the labeling roller 11. In addition, the acting force of the cylinder on the indexing roller 2 is adjustable, and the acting force of the cylinder is constant and cannot fail. The labelling roller 2 may also be driven into abutment with the labelling roller 11 by means of other pneumatic traction means.

Example two

The structure of the label removing device 100 disclosed in this embodiment is substantially the same as that of the first embodiment, and the difference between the label removing device 100 disclosed in this embodiment and the first embodiment is as follows: as shown in fig. 5, drive assembly 4 selectively drives labelling roller 2 into abutment with labelling roller 11.

Specifically, as shown in fig. 5, the label rejecting apparatus 100 further comprises a driving assembly 4, when the labeling roller 11 adsorbs a defective label, the driving assembly 4 drives the labeling roller 2 to abut against the labeling roller 11, so as to ensure that the defective label adsorbed by the labeling roller 11 is adhered and rolled off by the labeling roller 2. When the labeling roller 11 does not adsorb bad labels, the driving assembly 4 can drive the labeling roller 2 to be far away from the labeling roller 11, so that unnecessary friction between the labeling roller 2 and the labeling roller 11 is avoided, and the protection of the labeling roller 2 and the labeling roller 11 is improved.

Preferably, when the labeling roller 11 rotates to the rejecting station along the arrow direction, the driving assembly 4 drives the labeling roller 2 to abut against the labeling roller 11. Specifically speaking, after the bad label that detection component detection mark roller 11 carried rotated to rejecting the station, detection component can give drive assembly 4 with signal transmission, and drive assembly 4 drive is attached mark roller 2 and is pasted mark roller 11 looks butt.

The specific structure of the driving assembly 4 is described with reference to fig. 5, the driving assembly 4 includes a driving member 41 and a connecting rod 42, the output end of the driving member 41 is connected to the connecting rod 42, the label attaching roller 2 is rotatably disposed on the connecting rod 42, the driving member 41 drives the connecting rod 42 to move, and the connecting rod 42 can drive the label attaching roller 2 to move toward the direction close to the label attaching roller 11 or away from the label attaching roller 11. Specifically, the driving member 41 may be a driving cylinder or a linear driving motor, and the embodiment does not specifically limit the specific form of the driving member 41 as long as the connecting rod 42 can be driven to drive the labeling roller 2 to move toward or away from the labeling roller 11.

EXAMPLE III

The structure of the label removing device 100 disclosed in this embodiment is substantially the same as that of the first embodiment, and the difference between the label removing device 100 disclosed in this embodiment and the first embodiment is as follows: as shown in fig. 6, two ends of the axial air hole 112 respectively penetrate through the bottom end and the top end of the labeling roller 11, and compressed air is introduced into the axial air hole 112.

The blowing device blows compressed air into the bottom end of the axial air hole 112 through the cavity 121, the compressed air is rapidly discharged from the top end of the axial air hole 112, rapid air circulation is generated in the axial air hole 112, negative pressure suction force is generated in the radial adsorption hole 111 communicated with the axial air hole 112, and the radial adsorption hole 111 adsorbs the fixed label.

In order to further increase the negative pressure suction force generated in the radial suction hole 111, as shown in fig. 6, a first air pipe 1121 and a second air pipe 1122 which are communicated with each other are arranged in the axial air hole 112, wherein a gap is arranged between an outer wall of the second air pipe 1122 and an inner wall of the axial air hole 112, the radial suction hole 111 is communicated with the gap, when the blowing device blows compressed air into the chamber 121, the chamber 121 can blow the compressed air into the second air pipe 1122 and the gap through the first air pipe 1121, and the compressed air can be discharged through the second air pipe 1122, so that the negative pressure is generated in the radial suction hole 111. The first air pipe 1121 and the second air pipe 1122 which are communicated with each other are arranged in the axial air hole 112, so that the flow speed of the compressed air in the axial air hole 112 is greatly increased, and the negative pressure suction force generated in the radial adsorption hole 111 is increased.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (11)

1. A label reject device, comprising:

the labeling component (1), the labeling component (1) comprises a labeling roller (11) and a fixed disc (12), the outer surface of the labeling roller (11) is radially provided with radial adsorption holes (111), the inside of the labeling roller (11) is axially provided with axial air holes (112) communicated with the radial adsorption holes (111), one ends of the axial air holes (112) penetrate through the bottom end of the labeling roller (11), the labeling roller (11) can rotate relative to the fixed disc (12), and the fixed disc (12) is provided with a cavity (121) communicated with the axial air holes (112); and

the label attaching roller (2) can be abutted to the labeling roller (11) at a removing station, and when the labeling roller (11) adsorbs labels to rotate, the radial adsorption holes (111) are communicated with the cavity (121); when the labeling roller (11) adsorbs the bad labels and rotates to the rejecting station, the bad labels adsorbed by the labeling roller (11) are adhered and rolled off by the labeling roller (2).

2. The label removing device according to claim 1, characterized in that a plurality of radial adsorption holes (111) are spaced on the outer surface of the labeling roller (11), a plurality of axial air holes (112) are spaced inside the labeling roller (11), the plurality of axial air holes (112) are circumferentially arranged inside the labeling roller (11), and each axial air hole (112) is communicated with the radial adsorption hole (111) in the corresponding area;

cavity (121) are circular-arcly, cavity (121) and corresponding region axial gas pocket (112) are linked together, cavity (121) not simultaneously with all axial gas pocket (112) intercommunication, radial adsorption hole (111) adsorb bad label rotates extremely during the rejection station, is located reject the station radial adsorption hole (111) correspond axial gas pocket (112) with cavity (121) disconnection.

3. The label rejecting device according to claim 2, wherein a plurality of the axial air holes (112) are circumferentially arranged inside the labeling roller (11) to form air hole groups, the air hole groups are arranged in a plurality of groups, the air hole groups are arranged in a concentric circle inside the labeling roller (11), the fixed disk (12) is provided with a plurality of the chambers (121) at intervals, and each chamber (121) corresponds to one of the air hole groups.

4. The label removing device according to any one of claims 1 to 3, wherein two ends of the axial air hole (112) respectively penetrate through the bottom end and the top end of the labeling roller (11), and compressed air is introduced into the axial air hole (112).

5. The label removing device according to claim 4, wherein a first air pipe (1121) and a second air pipe (1122) are provided in the axial air hole (112) and are communicated with each other, a gap is provided between an outer wall of the second air pipe (1122) and an inner wall of the axial air hole (112), the radial suction hole (111) is communicated with the gap, the chamber (121) can introduce the compressed gas to the second air pipe (1122) and the gap through the first air pipe (1121), and the compressed gas can be discharged through the second air pipe (1122).

6. The label reject device according to any of claims 1 to 3, further comprising an elastic traction member (3) configured to draw the labelling roller (2) into abutment with the labelling roller (11).

7. The label reject device according to any of claims 1 to 3, further comprising a pneumatic cylinder configured to drive the labelling roller (2) into abutment with the labelling roller (11).

8. The label removing device according to claim 6, characterized in that the labeling roller (2) is located at the rear end of the labeling station, and when the labeling roller (11) adsorbs qualified labels and rotates to the labeling station, the labeling roller (11) adheres the adsorbed qualified labels to the attached objects (400).

9. The label reject device according to any one of claims 1 to 3, further comprising a driving assembly (4), wherein the driving assembly (4) selectively drives the label roll (2) to abut against the labeling roll (11), and when the labeling roll (11) adsorbs the defective label, the driving assembly (4) drives the label roll (2) to abut against the labeling roll (11).

10. The label reject device according to any of claims 1 to 3, wherein the labelling assembly (1) further comprises a sealing and wear-resistant disc (13) arranged between the labelling roller (11) and the stationary disc (12).

11. The label removing device according to any one of claims 1 to 3, wherein the labeling assembly (1) further comprises an elastic member (14), the elastic member (14) is arranged on an end face of the labeling roller (11) far away from the fixed disc (12) along the axial direction of the labeling roller (11), and the elastic member (14) is configured to press down the labeling roller (11) along the axial direction of the labeling roller (11).

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