Automatic labeling device

Abstract

The utility model provides an automatic labeling device and relates to the technical field of packaging equipment. The automatic labeling device is used for labeling the outer wall of a bottle body and comprises a labeling mechanism and a rolling labeling mechanism, the labeling mechanism comprises a labeling part and a first driving assembly, and the first driving assembly is in transmission connection with the labeling part so as to drive the labeling part to move in the direction close to or away from the bottle body; and the rolling and pasting mechanism is located on the downstream of the labeling mechanism in the conveying direction of the bottle bodies and comprises a second driving assembly and two rolling and pasting assemblies arranged oppositely, and the second driving assembly is in transmission connection with the two rolling and pasting assemblies so as to drive the two rolling and pasting assemblies to rotate around the axes of the corresponding bottle bodies in a reciprocating mode. According to the automatic labeling device provided by the utility model, the technical problem that a label is easy to tilt or fall off due to the fact that a labeling device in the prior art cannot fully paste a bottle label and a bottle body is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, in particular to an automatic labeling device. Background Art

[0002] In order to identify the contents of the packaging bottle, a label is usually attached to the packaging bottle. For large-scale enterprises, the labeling process is usually completed by automated labeling equipment. The existing labeling device uses an elastic cross structure to push two labeling rollers against the workpiece in a scissor-like manner under the drive of the push action actuator to roll the curved surface of the curved bottle; however, the device cannot achieve the compression of the label around the entire circumference of the bottle body, resulting in the edge of the label being easily lifted or the label being easily dropped, which increases the packaging failure rate and rework rate, reduces production efficiency and increases production costs. Utility Model Content

[0003] The utility model aims to provide an automatic labeling device to alleviate the technical problem that the labeling device in the prior art cannot fully adhere the bottle label to the bottle body, resulting in the label being easily lifted or falling off.

[0004] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0005] The automatic labeling device provided by the utility model is used for labeling the outer wall of a bottle body, and comprises a labeling mechanism and a rolling mechanism;

[0006] The labeling mechanism comprises a labeling member and a first driving assembly, wherein the first driving assembly is in driving connection with the labeling member to drive the labeling member to move toward or away from the bottle body;

[0007] The rolling mechanism is located downstream of the labeling mechanism along the conveying direction of the bottle body, and includes a second driving component and two oppositely arranged rolling components. The second driving component is transmission-connected to the two rolling components to drive the two rolling components to reciprocate around the corresponding axis of the bottle body.

[0008] The labeling mechanism realizes the preliminary pasting of the label paper on the bottle body; the rolling mechanism makes the label paper and the bottle body fully adhere to each other, so that the label paper is firmly pasted on the bottle body.

[0009] Furthermore, a positioning groove is provided on the side surface of the labeling member opposite to the bottle body, and the axis of the positioning groove is parallel to the axis of the bottle body.

[0010] The positioning groove increases the contact area with the bottle body and enhances the sticking stability of the label paper initially bonded to the outer wall of the bottle body.

[0011] Furthermore, the distance between the axis of the positioning groove and the first side of the labeling member is a first spacing, the distance between the axis of the positioning groove and the second side of the labeling member is a second spacing, and the first spacing is smaller than the second spacing, so that the label paper is pasted on the bottle body and the axis of the positioning groove is used as a reference, and the distance between one end of the label paper and the axis is larger as the long side, and the distance between the other end and the axis is smaller as the short side;

[0012] The second driving assembly drives the two rolling assemblies to rotate around the corresponding axes of the bottle bodies in the direction of the short side and the direction of the long side in sequence.

[0013] The second driving assembly drives the two rolling assemblies to rotate around the axis of the corresponding bottle body in the direction of the short side and the direction of the long side in sequence, so as to completely and firmly stick the label paper on the bottle body.

[0014] Furthermore, the rolling mechanism further includes a third driving assembly, which is transmission-connected to the two rolling assemblies to drive the two rolling assemblies to move toward or away from each other.

[0015] Before rolling the bottle body, the third driving assembly drives the two rolling assemblies to move towards each other so that both rolling assemblies contact the bottle body; after rolling the bottle body, the third driving assembly drives the two rolling assemblies to move away from each other to avoid affecting the movement of the bottle body to the next process.

[0016] Furthermore, the rolling assembly includes a support member and a roller, and the support member is transmission-connected to the second driving assembly;

[0017] The roller is rotatably connected to the support member, and the rotation axis is parallel to the axis of the bottle body.

[0018] The roller can rotate around its own axis, so that the label paper is firmly attached and the roller is prevented from damaging the bottle body.

[0019] Furthermore, the support member is provided with a connecting protrusion, the roller is rotatably connected to the connecting protrusion, and the rotation axis is parallel to the axis of the carrier.

[0020] The connecting protrusion realizes the rotation connection between the supporting member and the roller, and the supporting member can protect the roller.

[0021] Furthermore, the surface of the support member on which the connecting protrusion is provided is provided with an avoidance groove for avoiding the roller.

[0022] The avoidance groove is used to avoid the roller and reduce the volume of the rolling assembly.

[0023] Furthermore, a groove is provided on the side of the labeling member opposite to the bottle body, and the axis of the groove is perpendicular to the axis of the bottle body;

[0024] The positioning groove passes through the top wall and the bottom wall of the groove.

[0025] The groove is used to hold labels.

[0026] Furthermore, the automatic labeling device also includes a positioning mechanism;

[0027] The positioning mechanism includes a conveying component and a plurality of carriers, wherein the plurality of carriers are installed on the conveying component at intervals along the conveying direction of the conveying component, and the axis of the carrier is perpendicular to the conveying direction of the conveying component, and the bottle body is placed in the carrier.

[0028] The carrier is used to support the bottle body; the conveying component is used to convey the carrier and then convey the bottle body.

[0029] Furthermore, the labeling mechanism and the rolling mechanism are respectively located on both sides of the conveying component, thereby reducing the occupied space of the automatic labeling device.

[0030] Based on the technical solution provided by the utility model, the technical effects that can be achieved by the utility model are analyzed as follows:

[0031] The automatic labeling device provided by the utility model is used for labeling the outer wall of the bottle body, and includes a labeling mechanism and a rolling mechanism; the labeling mechanism includes a labeling piece and a first driving component, the first driving component is connected to the labeling piece in a transmission manner to drive the labeling piece to move in a direction close to or away from the bottle body; the rolling mechanism is located downstream of the labeling mechanism along the conveying direction of the bottle body, and includes a second driving component and two oppositely arranged rolling components, the second driving component is connected to the two rolling components in a transmission manner to drive the two rolling components to reciprocate around the axis of the corresponding bottle body. When the automatic labeling device is used, the bottle body can move from a position matched with the edge mechanism to a position matched with the rolling mechanism to realize assembly line labeling. The first driving component is connected to the labeling piece in a transmission manner, and when the first driving component drives the labeling piece to move in a direction close to the bottle body, the bottle label located on the labeling piece is initially adhered to the bottle body; when the second driving component drives the labeling piece to move in a direction away from the bottle body, the labeling piece is prevented from affecting the movement of the bottle body, and the bottle label to be used next time is conveniently placed in the labeling piece. The second driving assembly drives the two rolling assemblies to reciprocate around the axis of the bottle body, so as to closely fit the bottle label to the outer wall of the bottle body, avoid the problem of the bottle label being easily lifted or falling off, improve the qualified rate of packaging, reduce the rework rate, thereby improving production efficiency and reducing production costs. The corresponding bottle body refers to the bottle body that is transferred to the position corresponding to the rolling assembly after the labeling part has been initially labeled. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 A schematic diagram of the structure of the automatic labeling device provided by an embodiment of the utility model at a first viewing angle;

[0034] Figure 2 A schematic diagram of the structure of the automatic labeling device provided by an embodiment of the utility model at a second viewing angle;

[0035] Figure 3 A schematic diagram of the structure of the labeling component in the automatic labeling device provided in the embodiment of the utility model Figure 1 ;

[0036] Figure 4 The structure of the labeling part in the automatic labeling device provided by the embodiment of the utility model is schematically shown. Figure 2 ;

[0037] Figure 5 A schematic diagram of the structure of a rolling labeling assembly in an automatic labeling device provided by an embodiment of the utility model;

[0038] Figure 6 The structure diagram of the labeling mechanism in the automatic labeling device provided by the embodiment of the utility model Figure 1 ;

[0039] Figure 7 The structure diagram of the labeling mechanism in the automatic labeling device provided by the embodiment of the utility model Figure 2 (The housing outside the second drive assembly is removed);

[0040] Figure 8 for Figure 7 A partial enlarged view of point A in the middle.

[0041] icon:

[0042] 100-positioning mechanism; 110-transporting assembly; 120-carrier; 130-positioning assembly; 131-positioning block;

[0043] 200-labeling mechanism; 210-labeling member; 211-positioning slot; 212-groove; L1-first spacing; L2-second spacing; 220-first driving assembly;

[0044] 300-rolling mechanism; 310-rolling assembly; 311-support member; 312-connecting protrusion; 313-avoidance groove; 314-roller; 320-second support seat; 330-second drive assembly; 331-first support seat; 340-third drive assembly; 350-support plate. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0048] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0049] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0050] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0052] Existing labeling equipment cannot achieve compaction of the label around the entire circumference of the bottle.

[0053] In view of this, an automatic labeling device provided in an embodiment of the utility model is used for labeling the outer wall of a bottle body, and includes a labeling mechanism 200 and a rolling mechanism 300; the labeling mechanism 200 includes a labeling member 210 and a first driving component 220, and the first driving component 220 is transmission-connected to the labeling member 210 to drive the labeling member 210 to move toward or away from the bottle body; the rolling mechanism 300 is located downstream of the labeling mechanism 200 along the conveying direction of the bottle body, and includes a second driving component 330 and two oppositely arranged rolling components 310, and the second driving component 330 is transmission-connected to the two rolling components 310 to drive the two rolling components 310 to reciprocate around the axis of the corresponding bottle body.

[0054] Specifically, see Figure 1 and Figure 2 The bottle body is set to be cylindrical, and the label is attached to the outer wall of the bottle body. Figure 1 and Figure 2 The automatic labeling device also includes a positioning mechanism 100. The bottle body is placed in the positioning mechanism 100. The positioning mechanism 100 moves the bottle body from a position coordinated with the pasting mechanism to a position coordinated with the rolling mechanism 300, thereby realizing automatic movement of the bottle body and assembly line labeling; and supports the bottle body when the labeling mechanism 200 is labeling and the rolling mechanism 300 is rolling.

[0055] When the automatic labeling device is used, the bottle body can be moved from the position cooperating with the wedging mechanism to the position cooperating with the rolling mechanism 300 to realize assembly line labeling. The first driving component 220 is connected to the labeling part 210 in a transmission manner. When the first driving component 220 drives the labeling part 210 to move in a direction close to the bottle body, the bottle label on the labeling part 210 is initially adhered to the bottle body; when the second driving component 330 drives the labeling part 210 to move in a direction away from the bottle body, the labeling part 210 is prevented from affecting the movement of the bottle body, and the bottle label to be used next is conveniently placed in the labeling part 210. The second driving component 330 drives the two rolling components 310 to reciprocate around the axis of the bottle body to achieve a close fit between the bottle label and the outer wall of the bottle body, avoid the problem of the bottle label easily tilting or falling off, improve the qualified rate of packaging, reduce the rework rate, thereby improving production efficiency and reducing production costs. The corresponding bottle body refers to the bottle body that is transferred to the position corresponding to the rolling assembly 310 after being initially labeled by the labeling member 210 .

[0056] The structure and shape of the automatic labeling device are described in detail below:

[0057] In an optional solution of the embodiment of the utility model, a positioning groove 211 is formed on the side of the labeling member 210 opposite to the bottle body, and the axis of the positioning groove 211 is parallel to the axis of the bottle body.

[0058] Specifically, in this embodiment, see Figure 3 The axis of the bottle body is arranged along the vertical direction, and correspondingly, the axis of the positioning groove 211 is arranged along the vertical direction. When the first driving assembly 220 drives the labeling member 210 to approach the bottle body, the outer wall of the bottle body abuts against the positioning groove 211, and there is a label paper between the two; the arrangement of the positioning groove 211 increases the abutting area between the bottle body and the labeling member 210, improves the sticking stability of the label paper initially bonded to the bottle body, and prevents the label paper from falling off during the movement of the bottle body.

[0059] The positioning groove 211 increases the contact area with the bottle body, thereby enhancing the sticking stability of the label paper initially bonded to the outer wall of the bottle body.

[0060] In an optional scheme of an embodiment of the utility model, the distance between the axis of the positioning groove 211 and the first side of the labeling component 210 is a first spacing L1, and the distance between the axis of the positioning groove 211 and the second side of the labeling component 210 is a second spacing L2. The first spacing L1 is smaller than the second spacing L2, so that the label paper is pasted on the bottle body and the axis of the positioning groove 211 is used as a reference. The distance between one end of the label paper and the axis is large, which is the long side, and the distance between the other end and the axis is small, which is the short side; the second driving component 330 drives the two rolling components 310 to rotate around the corresponding axis of the bottle body in the direction of the short side and the direction of the long side in turn.

[0061] Specifically, see Figure 4 When the label paper is placed on the labeling part 210, the distances between the two side edges of the label paper and the axis of the positioning groove 211 are different; when the labeling part 210 approaches the bottle body and initially bonds the label paper to the outer wall of the bottle body, the portion of the label paper corresponding to the axis of the positioning groove 211 is bonded to the bottle body, and the distances between the two ends of the label paper and the axis of the positioning groove 211 are different, and the label paper is divided into a long side and a short side based on the axis of the positioning groove 211; when the bottle body moves to a position corresponding to the rolling mechanism 300, the second driving component 330 drives the two rolling components 310 to rotate first in the direction of the short side of the label paper, and the short side of the label paper is bonded to the bottle body, and then rotate in the direction of the long side of the label paper, and the long side of the label paper is bonded to the bottle body. Such a rolling direction can achieve complete and firm bonding of the label paper to the bottle body, and avoid the short side of the rolling mechanism 300 from curling up when rolling the long side when rotating in the opposite direction, thereby causing the label paper to be unable to be completely bonded.

[0062] The second driving assembly 330 drives the two rolling assemblies 310 to rotate around the axis of the corresponding bottle body in the direction of the short side and the direction of the long side in sequence, so as to completely and firmly stick the label paper on the bottle body.

[0063] In an optional solution of the embodiment of the utility model, the rolling mechanism 300 further includes a third driving assembly 340, which is transmission-connected to the two rolling assemblies 310 to drive the two rolling assemblies 310 to move toward or away from each other.

[0064] Specifically, see Figures 6 to 8 The second driving assembly 330 includes a motor, a driving wheel, a driven wheel, a synchronous belt, a first support seat 331 and a rotating shaft. The driving shaft of the motor is connected to the driving wheel, the driving wheel is connected to the driven wheel through a synchronous belt, the driven wheel is connected to the rotating shaft, the rotating shaft is connected to the first support seat 331, and both rolling assemblies 310 are installed on the first support seat 331. The rolling mechanism 300 also includes a support plate 350 and a second support seat 320. The second support seat 320 is installed on the support plate 350. The motor is installed on the second support seat 320, and the rotating shaft passes through the second support seat 320 and is connected to the first support seat 331. The third driving assembly 340 includes a cylinder, and the driving end of the cylinder is connected to the rolling assembly 310 to drive the rolling assembly 310 to move.

[0065] Before rolling the bottle body, the third driving assembly 340 drives the two rolling assemblies 310 to move towards each other so that both rolling assemblies 310 contact the bottle body; after rolling the bottle body, the third driving assembly 340 drives the two rolling assemblies 310 to move away from each other to avoid affecting the movement of the bottle body to the next process.

[0066] In an optional solution of the embodiment of the utility model, the rolling assembly 310 includes a support member 311 and a roller 314, the support member 311 is transmission-connected to the second driving assembly 330; the roller 314 is rotationally connected to the support member 311, and the rotation axis is parallel to the axis of the bottle body.

[0067] Specifically, the roller 314 is made of an elastic material, such as rubber, or an outer wall of the roller 314 is provided with an elastic layer, such as a rubber cushion.

[0068] The roller 314 is rotatably connected to the support member 311 . When the rolling assembly 310 rotates around the bottle body, the roller 314 can rotate around its own axis, so that the label paper is firmly attached and the roller 314 is prevented from damaging the bottle body.

[0069] In an optional solution of the embodiment of the utility model, the support member 311 is provided with a connecting protrusion 312, the roller 314 is rotatably connected to the connecting protrusion 312, and the rotation axis is parallel to the axis of the bottle body.

[0070] Specifically, see Figure 5 The connecting protrusion 312 extends outward from the side wall of the supporting member 311 , a rotating protrusion is provided at the end of the roller 314 , and the connecting protrusion 312 is provided with a through hole, and the rotating protrusion is inserted into the through hole and rotatably cooperates with the connecting protrusion 312 .

[0071] The connection protrusion 312 realizes the rotation connection between the support member 311 and the roller 314 , and the support member 311 can protect the roller 314 .

[0072] In an optional solution of the embodiment of the utility model, the surface of the support member 311 on which the connecting protrusion 312 is provided is provided with an avoidance groove 313 for avoiding the roller 314 .

[0073] Specifically, the top of the support member 311 is connected to the third driving assembly 340 .

[0074] The avoidance groove 313 is used to avoid the roller 314 and reduce the volume of the rolling assembly 310 .

[0075] In an optional solution of the embodiment of the utility model, a groove 212 is provided on the side of the labeling member 210 opposite to the bottle body, and the axis of the groove 212 is perpendicular to the axis of the bottle body; the positioning groove 211 passes through the top wall and the bottom wall of the groove 212.

[0076] Specifically, the axis of the groove 212 is perpendicular to the axis of the positioning groove 211 , and the groove 212 is used to place label paper; and because the positioning groove 211 passes through the bottom wall and the bottom wall of the groove 212 , the positioning groove 211 can abut against the bottle body.

[0077] and because the groove 212 is connected to the positioning groove 211, the label paper placed in the groove 212 meets the requirement that the distance between one end and the axis of the positioning groove 211 is the long side, and the distance between the other end and the axis is the short side.

[0078] In an optional scheme of an embodiment of the utility model, the automatic labeling device also includes a positioning mechanism 100; the positioning mechanism 100 includes a conveying component 110 and a plurality of carriers 120, the plurality of carriers 120 are installed on the conveying component 110 at intervals along the conveying direction of the conveying component 110, and the axis of the carrier 120 is perpendicular to the conveying direction of the conveying component 110, and the bottle body is placed in the carrier 120.

[0079] Specifically, the axis of the carrier 120 is arranged in the vertical direction to enable the bottle to be placed vertically, thereby enabling the label paper to be attached to the outer wall of the bottle. Preferably, the bottom end of the bottle is inserted into the carrier 120, and the carrier 120 can support the bottle.

[0080] The carrier 120 is used to support the bottle body; the conveying assembly 110 is used to convey the carrier 120 and further convey the bottle body.

[0081] In an optional solution of the embodiment of the present invention, the positioning mechanism 100 further includes a positioning assembly 130 . The positioning assembly 130 is opposite to the labeling component 210 , is located above the carrier 120 , and can be lifted and lowered in the vertical direction.

[0082] Specifically, before the labeling member 210 preliminarily affixes the label paper, the positioning assembly 130 descends to abut against the top of the bottle body to fix the bottle body; after the labeling member 210 preliminarily affixes the label paper, the positioning assembly 130 rises and separates from the top of the bottle body. The positioning assembly 130 includes a cylinder and a positioning block 131, and the cylinder drives the positioning block 131 to rise and fall.

[0083] The positioning assembly 130 is used to fix the bottle body to prevent the bottle body from being knocked over by the labeling member 210 .

[0084] In an optional solution of the embodiment of the utility model, the labeling mechanism 200 and the rolling mechanism 300 are respectively located on two sides of the conveying component 110.

[0085] Specifically, see Figure 1 and Figure 2 The labeling mechanism 200 and the rolling mechanism 300 are respectively located on both sides of the conveying assembly 110, and along the conveying direction of the conveying assembly 110, the rolling mechanism 300 is located downstream of the conveying assembly 110; after the label paper is initially pasted on the outer peripheral wall of the bottle body by the labeling mechanism 200, the conveying assembly 110 conveys the bottle body to the rolling mechanism 300, and the rolling mechanism 300 rolls the label paper on the bottle body. Further, the cylinder of the positioning assembly 130 is installed on the support plate 350 of the rolling mechanism 300.

[0086] The labeling mechanism 200 and the rolling mechanism 300 are respectively located on two sides of the conveying component 110, which reduces the occupied space of the automatic labeling device.

[0087] The following is a detailed description of the operating steps of the automatic labeling device:

[0088] The label paper is placed in the groove 212 of the labeling member 210, the carrier 120 on the positioning mechanism 100 positions the bottom of the bottle, the positioning assembly 130 on the positioning mechanism 100 presses the top of the bottle, and the first driving assembly 220 drives the labeling member 210 to approach the bottle to paste the label paper on the bottle, and the left and right sides of the label paper are asymmetrical. The conveying assembly 110 of the positioning mechanism 100 conveys the bottle to the position of the rolling mechanism 300, the third driving assembly 340 drives the two rolling assemblies 310 to approach the bottle, and the second driving assembly 330 first drives the two rolling assemblies 310 to press the short side of the label paper close together, and then rotates in the opposite direction to press the long side close together.

[0089] 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 aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An automatic labeling device for labeling the outer wall of a bottle, characterized in that: include: A labeling mechanism (200) and a rolling mechanism (300); The labeling mechanism (200) comprises a labeling component (210) and a first driving component (220), wherein the first driving component (220) is drivingly connected to the labeling component (210) to drive the labeling component (210) to move in a direction close to or away from the bottle body; The rolling mechanism (300) is located downstream of the labeling mechanism (200) along the conveying direction of the bottle body, and comprises a second driving component (330) and two oppositely arranged rolling components (310), wherein the second driving component (330) is transmission-connected to the two rolling components (310) to drive the two rolling components (310) to reciprocate around the axis of the corresponding bottle body.

2. The automatic labeling device according to claim 1, characterized in that: A positioning groove (211) is provided on the side of the labeling member (210) opposite to the bottle body, and the axis of the positioning groove (211) is parallel to the axis of the bottle body.

3. The automatic labeling device according to claim 2, characterized in that: The distance between the axis of the positioning groove (211) and the first side of the labeling member (210) is a first spacing (L1), and the distance between the axis of the positioning groove (211) and the second side of the labeling member (210) is a second spacing (L2), and the first spacing (L1) is smaller than the second spacing (L2), so that the label paper is pasted on the bottle body and the axis of the positioning groove (211) is used as a reference, and the distance between one end of the label paper and the axis is larger, which is the long side, and the distance between the other end and the axis is smaller, which is the short side; The second driving assembly (330) drives the two rolling assemblies (310) to rotate around the corresponding axes of the bottle bodies in the direction of the short side and the direction of the long side in sequence.

4. The automatic labeling device according to claim 1, characterized in that: The rolling mechanism (300) further comprises a third driving assembly (340), wherein the third driving assembly (340) is connected to the two rolling assemblies (310) in a transmission manner so as to drive the two rolling assemblies (310) to move in a direction of approaching or moving away from each other.

5. The automatic labeling device according to any one of claims 2 to 4, characterized in that: The rolling assembly (310) comprises a support member (311) and a roller (314); the support member (311) is drivingly connected to the second driving assembly (330); The roller (314) is rotatably connected to the support member (311), and the rotation axis is parallel to the axis of the bottle body.

6. The automatic labeling device according to claim 5, characterized in that: The support member (311) is provided with a connecting protrusion (312), the roller (314) is rotatably connected to the connecting protrusion (312), and the rotation axis is parallel to the axis of the bottle body.

7. The automatic labeling device according to claim 6, characterized in that: The surface of the support member (311) on which the connecting protrusion (312) is provided is provided with an avoidance groove (313) for avoiding the roller (314).

8. The automatic labeling device according to claim 2, characterized in that: A groove (212) is provided on the side of the labeling member (210) opposite to the bottle body, and the axis of the groove (212) is perpendicular to the axis of the bottle body; The positioning groove (211) passes through the top wall and the bottom wall of the groove (212).

9. The automatic labeling device according to claim 1, characterized in that: The automatic labeling device also includes a positioning mechanism (100); The positioning mechanism (100) comprises a conveying component (110) and a plurality of carriers (120), wherein the plurality of carriers (120) are installed on the conveying component (110) at intervals along the conveying direction of the conveying component (110), and the axis of the carrier (120) is perpendicular to the conveying direction of the conveying component (110), and the bottle body is placed in the carrier (120).

10. The automatic labeling device according to claim 9, characterized in that: The labeling mechanism (200) and the rolling mechanism (300) are respectively located on two sides of the conveying component (110).

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