Label attaching device

Abstract

The invention belongs to the technical field of label attaching, and discloses a label attaching device which comprises a first attaching module and a driving module, and the first attaching module comprises a first suction cup and a label bending module. The driving module drives the first suction cup to move between the label feeding station and the label attaching station, so that the first suction cup can suck the first label from the label feeding station and transfer the first label to the label attaching station, and in addition, the first suction cup can suck the first label from the label feeding station and transfer the first label to the label attaching station. The first suction cup and the label bending module are matched to attach the first label to the edge of the sealing position of the product, and the first label is pasted to the two intersecting surfaces forming the edge at the same time. Compared with manual labeling, the automatic labeling machine has the advantages that automation of labeling operation can be realized, so that the working efficiency of labeling operation can be improved, the production efficiency of products can be improved, and the quality problems of wrinkles / blisters and the like of the first labels attached to the products can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of label mounting, and particularly to a label attaching device. Background Art

[0002] The packaging box sealed with a swing lid structure is widely used in commodity packaging due to its convenience. To enhance the firmness of the swing lid structure sealing, in the prior art, a label is generally attached to the edge of the sealing of the packaging box, and the label needs to be pasted on two intersecting surfaces that form the edge on the packaging box at the same time.

[0003] However, at present, this key packaging step is mainly completed manually. Manual labeling not only has a slow speed and is difficult to meet the needs of large-scale production, but also is prone to quality problems such as inaccurate pasting positions, label wrinkles / blisters, etc., ultimately resulting in low production efficiency.

[0004] Therefore, there is an urgent need for a device that can automatically complete the attachment of edge labels to improve production efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a label attaching device to solve the problems that manual labeling not only has a slow speed and is difficult to meet the needs of large-scale production, but also is prone to quality problems such as inaccurate pasting positions, label wrinkles / blisters, etc., ultimately resulting in low production efficiency.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A label attaching device for attaching a first label to the edge of the sealing of a product, such that the first label is pasted on two intersecting surfaces that form the edge at the same time. The label attaching device includes:

[0008] A first attaching module, including a first suction cup and a label bending module. The first suction cup is configured to suck the first label and attach the first label to one of the two intersecting surfaces, so that a part of the first label extends out of the product. The label bending module is configured to contact the extending part of the first label and guide the first label to bend and gradually attach to the other of the two intersecting surfaces;

[0009] A driving module configured to drive the first attaching module to move.

[0010] Preferably, the label bending module includes a brush and a first driving member. The first driving member is configured to drive the brush to move, so that the brush can press against the extending part of the first label to bend around the edge and gradually sweep across the extending part of the first label.

[0011] Preferably, the brush is disposed on one side of the first suction cup along the direction parallel to its adsorption surface, and the free ends of all bristles are adjacent to the first suction cup in the direction parallel to the adsorption surface. The first driving member can drive the brush to move in a direction perpendicular to the adsorption surface.

[0012] Preferably, the label attaching device includes a first attaching mechanism, and the first attaching mechanism includes two first attaching modules, and the two first attaching modules can respectively attach the first labels to two edges of the product.

[0013] Preferably, in the first attaching mechanism, the two first suction cups are arranged at intervals along a first direction, and the distance between the two first suction cups can be adapted to the distance between the two seals on both sides of the product.

[0014] Preferably, the label attaching device further includes a second attaching mechanism, and the second attaching mechanism includes the first attaching module;

[0015] The first attaching mechanism further includes a second driving member, and the second driving member is configured to adjust the distance between the two first suction cups along the first direction.

[0016] Preferably, the label attaching device further includes a first mounting plate, the first attaching mechanism is mounted on the first mounting plate, the driving module can drive the first mounting plate to move, the movable end of the second driving member is provided with a second mounting plate, and one of the first attaching modules is mounted on the second mounting plate, and the other first attaching module is fixedly connected to the first mounting plate;

[0017] The body of the second driving member is provided with a first limiting member and a second limiting member, the first limiting member and the second limiting member are arranged at intervals along the first direction, and a third limiting member is mounted on the second mounting plate, and the third limiting member is located between the first limiting member and the second limiting member.

[0018] Preferably, the positions of the first limiting member and the second limiting member in the first direction are adjustable.

[0019] Preferably, the label attaching device further includes a second attaching module, and the second attaching module includes a second suction cup, and the second suction cup is configured to suck a second label and attach the second label to one surface of the product.

[0020] Preferably, the first suction cup is provided with a plurality of columns of first adsorption holes, and among them, the number of the first adsorption holes in the two outermost columns is less than the number of the first adsorption holes in the middle column.

[0021] Advantages of the present invention:

[0022] In the present invention, a driving module drives a first suction cup to move between a label loading station and a label attaching station, so that the first suction cup can suck a first label from the label loading station and transfer the first label to the label attaching station. Moreover, in the present invention, the first suction cup and a label bending module cooperate to attach the first label to the edge of the sealing part of the product, and the first label is simultaneously pasted on two intersecting surfaces forming the edge. Compared with manual labeling, the present invention can realize the automation of the labeling operation, thereby improving the working efficiency of the labeling operation, and further improving the production efficiency of the product. Moreover, since the label bending module gradually attaches the first label to the other of the two surfaces forming the edge, the present invention can ensure that the first label is attached to the product integrally and flatly, thereby avoiding quality problems such as wrinkles / blisters on the first label attached to the product. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of the label attaching device in an embodiment of the present invention;

[0024] Figure 2 is a schematic structural diagram of the label attaching device in an embodiment of the present invention except for the feeder loading module;

[0025] Figure 3 is a schematic structural diagram of the label attaching device in an embodiment of the present invention except for the feeder loading module and the driving module;

[0026] Figure 4 is an unfolded schematic diagram of a packaging box without a lifting ring in an embodiment of the present invention;

[0027] Figure 5 is a schematic diagram of the packaging box without a lifting ring attaching the first label in an embodiment of the present invention;

[0028] Figure 6 is an unfolded schematic diagram of a packaging box with a lifting ring in an embodiment of the present invention;

[0029] Figure 7 is a schematic diagram of the packaging box with a lifting ring attaching the first label in an embodiment of the present invention;

[0030] Figure 8 is a schematic structural diagram of a packaging box attached with the first label and the second label in an embodiment of the present invention.

[0031] In the figure:

[0032] 1. Packaging box; 11. Flap; 111. Closing plate; 112. Insert tongue; 113. First crease; 114. Second crease; 12. Box body; 13. Sealing; 14. Handle; 21. First label; 211. First attachment area; 212. Second attachment area; 22. Second label;

[0033] 31. First attachment module; 311. First suction cup; 3111. First adsorption hole; 312. Label bending module; 3121. Brush; 3122. First driving member; 32. Driving module; 33. First attachment mechanism; 331. Second driving member; 3311. Moving end; 3312. Body; 332. Second mounting plate; 333. First limiting member; 334. Second limiting member; 335. Third limiting member; 34. Second attachment mechanism; 35. First mounting plate; 36. Second attachment module; 361. Second suction cup; 3611. Second adsorption hole; 362. Third driving member; 37. Feeder loading module. Detailed implementation manners

[0034] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that for the convenience of description, only parts related to the present invention are shown in the drawings rather than all structures.

[0035] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0036] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the horizontal height of the first feature is lower than that of the second feature.

[0037] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "right", "left", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for differentiation in description and do not have special meanings.

[0038] Please refer to Figures 1 to 3 , this embodiment provides a label attaching device. The label attaching device is used to attach a first label 21 to the edge of the seal 13 of the product, such that the first label 21 is simultaneously pasted on two intersecting surfaces forming the edge.

[0039] Thus, as Figures 4 to 8 shown, the product includes a packaging box 1 and a commodity placed inside the packaging box 1. The packaging box 1 is sealed by a flap 11. Specifically, the flap 11 includes a closing plate 111. One side of the closing plate 111 is provided with a tongue 112. The other side of the closing plate 111 is integrally formed with the box body 12 of the packaging box 1. A first crease 113 is formed between the closing plate 111 and the tongue 112, and a second crease 114 is formed between the closing plate 111 and the box body 12. Under the action of the second crease 114, the closing plate 111 can rotate around the box body 12, and the tongue 112 can be inserted into the inside of the packaging box 1, so that the closing plate 111 seals the packaging box 1. To ensure the firmness of the seal 13, it is necessary to attach the first label 21 to the edge formed between the closing plate 111 and the box body 12.

[0040] In this embodiment, the label attaching device can attach the first label 21 to the edge of the seal 13 of the packaging box 1. The first label 21 is divided into a first attaching area 211 and a second attaching area 212, and the first attaching area 211 and the second attaching area 212 are respectively pasted on two intersecting surfaces forming the edge, so that the seal 13 can be kept firm. That is, the label attaching device can attach the first label 21 to the edge formed between the closing plate 111 and the box body 12 of the packaging box 1, and the first attaching area 211 and the second attaching area 212 are respectively pasted on the closing plate 111 and the box body 12 of the packaging box 1.

[0041] Please refer to Figures 1 to 3 , and in combination with Figures 4 to 7, the label attaching device includes a first attaching module 31 and a driving module 32. Among them, the first attaching module 31 includes a first suction cup 311 and a label bending module 312. The first suction cup 311 is configured to suck the first label 21 and attach the first label 21 to one of the two intersecting surfaces mentioned above, that is, the first suction cup 311 is configured to suck the first label 21 and attach the first label 21 to one of the two surfaces forming the edge, and a part of the first label 21 extends out of the product. Specifically, the first suction cup 311 can attach the first attaching area 211 of the first label 21 to one of the two surfaces mentioned above, and the second attaching area 212 of the first label 21 extends out of the product. In other words, the first suction cup 311 can attach the first attaching area 211 of the first label 21 to one of the closing plate 111 and the box body 12, and the second attaching area 212 of the first label 21 extends out of the product. The label bending module 312 is configured to contact the extending part of the first label 21 and guide the first label 21 to bend and gradually attach to the other of the two intersecting surfaces, that is, the label bending module 312 is configured to contact the extending part of the first label 21 and guide the first label 21 to bend and gradually attach to the other of the two surfaces forming the edge, that is, the label bending module 312 can bend the second attaching area 212 and gradually attach the second attaching area 212 to the other of the two surfaces. In other words, the label bending module 312 can bend the second attaching area 212 and gradually attach the second attaching area 212 to the other of the closing plate 111 and the box body 12, while the driving module 32 is configured to drive the first attaching module 31 to move.

[0042] Specifically, the driving module 32 can drive the first suction cup 311 to move between the label loading station and the label attaching station, so that the first suction cup 311 can suck the first label 21 from the label loading station and transfer the first label 21 to the label attaching station. The product to which the first label 21 is to be attached is placed at the label attaching station. The driving module 32 can drive the first suction cup 311 to move to a preset position where the first attaching area 211 of the first label 21 is attached to the product. It can be understood that this preset position is on one of the closing plate 111 and the box body 12 and is adjacent to the edge between the closing plate 111 and the box body 12. Moreover, the first suction cup 311 only attaches the first attaching area 211 of the first label 21 at the preset position, and the second attaching area 212 of the first label 21 extends out of the product. After that, the label bending module 312 bends the second attaching area 212 of the first label 21 around the edge and gradually attaches it to the other of the closing plate 111 and the box body 12, that is, the label bending module 312 gradually attaches the second attaching area 212 to the other of the closing plate 111 and the box body 12, so that each part of the second attaching area 212 can be closely attached to the product.

[0043] It can be understood that in this embodiment, the driving module 32 can control the stroke of the first suction cup 311, thereby controlling the relative position between the first label 21 adsorbed on the first suction cup 311. Furthermore, when the first suction cup 311 drives the first label 21 to move to the label attaching station, the first attaching area 211 of the first label 21 can be accurately controlled to be aligned with the preset part on the product, so as to ensure that after the first suction cup 311 attaches the first label 21 to the preset part on the product, the second attaching area 212 extends out of the product, and further ensure that the first label 21 can be accurately attached to the product.

[0044] As described above, in this embodiment, the driving module 32 drives the first suction cup 311 to move between the label loading station and the label attaching station, so that the first suction cup 311 can suck the first label 21 from the label loading station and transfer the first label 21 to the label attaching station. Moreover, in this embodiment, the first suction cup 311 and the label bending module 312 cooperate to attach the first label 21 to the edge at the sealing part 13 of the product, and the first label 21 is simultaneously pasted on two intersecting surfaces forming the edge. Compared with manual labeling, this embodiment can realize the automation of the labeling operation, thereby improving the working efficiency of the labeling operation, and further improving the production efficiency of the product. Moreover, since the label bending module 312 gradually attaches the first label 21 to the other of the two surfaces forming the edge, this embodiment can ensure that the first label 21 is integrally and smoothly attached to the product, thereby avoiding quality problems such as wrinkles / air bubbles on the first label 21 attached to the product.

[0045] It is worth noting that in this embodiment, the feeder loading module 37 is used for the loading operation of the first label 21. The feeder loading module 37 is arranged at the label loading station. It can be understood that since the specific structure of the feeder loading module 37 is prior art, this embodiment will not elaborate on it.

[0046] Based on the above-mentioned content, in this embodiment, the label bending module 312 includes a brush 3121 and a first driving member 3122. The first driving member 3122 is configured to drive the brush 3121 to move, so that the brush 3121 can press against the protruding portion of the first label 21 and bend it around the edge, and gradually sweep across the protruding portion of the first label 21. That is, in this embodiment, the brush 3121 presses against the second attaching area 212 of the first label 21, so that the second attaching area 212 bends around the edge. Moreover, subsequently, the brush 3121 can gradually sweep across the second attaching area 212 to gradually attach the second attaching area 212 to the product. That is, in this embodiment, the second attaching area 212 is attached to the product by the brushing method of the brush 3121. Under the action of the brush 3121, each part of the second attaching area 212 is sequentially attached to the product, so that each part of the second attaching area 212 can be closely attached to the product. Thus, the second attaching area 212 can be flatly attached to the product.

[0047] In addition, since in this embodiment, the first suction cup 311 sucks the first label 21 and attaches the first attaching area 211 of the first label 21 to the product, therefore, the first attaching area 211 can also be flatly attached to the product. In summary, this embodiment can ensure that the first label 21 is flatly attached to the product as a whole, thereby avoiding quality problems such as wrinkles / foaming on the first label 21 attached to the product.

[0048] Specifically in this embodiment, the label attaching device further includes a first mounting plate 35. The first suction cup 311 and the label bending module 312 are both mounted on the first mounting plate 35. The driving module 32 can drive the first mounting plate 35 to move, thereby driving the first suction cup 311 and the label bending module 312 to move.

[0049] In addition, the brush 3121 is disposed on one side of the first suction cup 311 along the direction parallel to its adsorption surface, and the free ends of all the bristles of the brush 3121 are adjacent to the first suction cup 311 in the direction parallel to the adsorption surface. Exemplarily, all the bristles of the brush 3121 extend along the direction parallel to the adsorption surface, and the free ends of the bristles are close to the first suction cup 311. The first driving member 3122 can drive the brush 3121 to move in a direction perpendicular to the adsorption surface.

[0050] Combined with the content mentioned above, in this embodiment, the first label 21 sucked by the first suction cup 311 is in a posture where the first attachment area 211 and the second attachment area 212 are arranged along the arrangement direction of the first suction cup 311 and the brush 3121, and the second attachment area 212 is close to the brush 3121. After the first suction cup 311 attaches the first attachment area 211 of the first label 21 to the product, the first driving member 3122 drives the brush 3121 to move in a direction perpendicular to the adsorption surface, so that the brush 3121 can press against the second attachment area 212 of the first label 21, causing the second attachment area 212 to bend around the edge, and subsequently the brush 3121 can gradually sweep across the second attachment area 212 to gradually attach the second attachment area 212 to the product.

[0051] From the above, in this embodiment, the first attachment module 31 only needs to be provided with one driving structure, namely the first driving member 3122, so as to simplify the structure of the first attachment module 31.

[0052] It can be understood that the first driving member 3122 can be selected as a linear driving structure such as a cylinder or an electric cylinder, and this embodiment does not make specific limitations on this.

[0053] Exemplarily, in this embodiment, for the first label 21 sucked by the first suction cup 311, the side of the first attachment area 211 close to the second attachment area 212 is directly opposite to the brush 3121, while the second attachment area 212 is completely directly opposite to the brush 3121. Thus, when the first driving member 3122 drives the brush 3121 to move in a direction perpendicular to the adsorption surface, the free end of the brush 3121 can first sweep across the preset part on the product for attaching the first attachment area 211. Since the brush 3121 can bend, after the first driving member 3122 continues to drive the brush 3121 to move in a direction perpendicular to the adsorption surface, the brush 3121 can bend and press against the second attachment area 212 to bend around the edge, and the free end of the brush 3121 can slide along the other side of the product, gradually sweeping across the second attachment area 212 of the first label 21 and attaching it flatly and tightly to the product.

[0054] Of course, in other alternative embodiments, for the first label 21 sucked by the first suction cup 311, only the second attachment area 212 may be completely directly opposite to the brush 3121. When the first driving member 3122 drives the brush 3121 to move in a direction perpendicular to the adsorption surface, the brush 3121 can press against the second attachment area 212 to bend around the edge, and the brush 3121 can push and gradually sweep across the second attachment area 212 of the first label 21, so as to attach it flatly to the product.

[0055] Further, based on the prior art, such as Figure 4 and Figure 5As shown in the figure, for a product composed of a packaging box 1 and a commodity placed inside the packaging box 1, the packaging box 1 is generally provided with two swing lids 11. The two swing lids 11 are respectively arranged on both sides of the packaging box 1 along its length direction, so as to seal both sides of the packaging box 1 respectively. In order to ensure that both side seals 13 are firm, first labels 21 need to be attached to both side seals 13.

[0056] It should be noted that, in order to fully ensure the firmness of the seal 13, the first label 21 will be attached to the edge coinciding with the first crease 113.

[0057] To attach the first label 21 to both side seals 13 of the packaging box 1, please refer to Figures 1 to 3 . In this embodiment, the label attaching device includes a first attaching mechanism 33. The first attaching mechanism 33 includes two first attaching modules 31, and the two first attaching modules 31 can respectively attach the first labels 21 to two edges of the product.

[0058] Thus, the driving module 32 can drive the two first attaching modules 31 to move to the label loading station to pick up the first labels 21, and can drive the two first attaching modules 31 to move to the label attaching station, so as to respectively attach the first labels 21 to the edges at both side seals 13 of the product.

[0059] It should be noted that for the packaging box 1 provided with two swing lids 11, the tongues 112 of the two swing lids 11 are arranged on the same side of the box body 12 of the packaging box 1, that is, the edge coinciding with one of the first creases 113 and the edge coinciding with the other first crease 113 are arranged on the same side.

[0060] Therefore, in this embodiment, the two first attaching modules 31 are arranged at intervals along the first direction. In the first attaching mechanism 33, the two first suction cups 311 are arranged at intervals along the first direction, and the distance between the two first suction cups 311 can be adapted to the distance between both side seals 13 of the product. Specifically, the distance between the two first suction cups 311 along the first direction is the first distance, and the distance between both side seals 13 of the product is the second distance. In other words, the distance between the two first creases 113 is the second distance, that is, the distance between the edge coinciding with one of the first creases 113 and the edge coinciding with the other first crease 113 is the second distance. This embodiment can make the first distance adapted to the second distance, so that the two first attaching modules 31 can respectively attach the first labels 21 to the edges at both side seals 13 of the product, and the two first attaching modules 31 operate synchronously.

[0061] Among them, one of the first attaching modules 31 is used to attach the first label 21 to the edge coinciding with one of the first creases 113, and the other first attaching module 31 is used to attach the first label 21 to the edge coinciding with the other first crease 113.

[0062] Specifically, when the driving module 32 drives the two first attaching modules 31 to move to the label attaching station, the first direction is parallel to the length direction of the packaging box 1. Since the first spacing is adapted to the second spacing, the two first suction cups 311 can respectively attach the first attaching areas 211 of the first labels 21 they suck to both side edges of the box body 12 along its length. That is, one of the first suction cups 311 can attach the first attaching area 211 of the first label 21 it sucks to one side edge of the box body 12 along its length, and the other first suction cup 311 can attach the first attaching area 211 of the first label 21 it sucks to the other side edge of the box body 12 along its length. And the two first suction cups 311 operate synchronously. And the second attaching areas 212 of the two first labels 21 both extend along the length direction of the box body 12 beyond the product. It can be understood that the length direction of the box body 12 is the length direction of the product. Subsequently, the two label bending modules 312 respectively bend and attach the second attaching areas 212 of the two first labels 21 to the product, and the two label bending modules 312 operate synchronously.

[0063] It should be noted that based on the foregoing content, the label bending module 312 includes a brush 3121. The brush 3121 is arranged on one side of the first suction cup 311 along the direction parallel to its adsorption surface, and the free ends of all the bristles of the brush 3121 are adjacent to the first suction cup 311 in the direction parallel to the adsorption surface. Thus, in this embodiment, the two label bending modules 312 are respectively located on the two opposite sides of the two first suction cups 311, and the brush 3121 is arranged on one side of the first suction cup 311 along the first direction, and the free ends of all the bristles of the brush 3121 are adjacent to the first suction cup 311 in the first direction. Exemplarily, all the bristles of the brush 3121 extend along the first direction, and the free ends of the bristles are close to the first suction cup 311.

[0064] Thus, after the two first suction cups 311 respectively attach the first attaching areas 211 of the first labels 21 they suck to both side edges of the box body 12 along its length, the two brushes 3121 can respectively bend and attach the second attaching areas 212 of the two first labels 21 to the product, and the two brushes 3121 operate synchronously.

[0065] Furthermore, it should be noted that as Figure 6 and Figure 7 shown, for the packaging box 1 provided with two swing lids 11, to meet the needs of consumers, some product packaging boxes 1 are provided with a pull ring 14 for consumers to lift. Specifically, the pull ring 14 is arranged on one side of the product along its length direction, and the pull ring 14 is fixedly connected inside the packaging box 1 and passes through the closing plate 111 of the swing lid 11.

[0066] For this product, when the consumer lifts the product, the lifting ring 14 will be stressed. Correspondingly, the swing lid 11 arranged on the same side as the lifting ring 14 will also be stressed. To prevent the seal 13 on the same side as the lifting ring 14 from accidentally opening, for the seal 13 on this side, it is necessary to attach the first label 21 to both edges of the seal 13 along the length direction of the insertion tongue 112, rather than attaching the first label 21 to the edge that coincides with the first crease 113. That is, for the seal 13 on this side, it is necessary to attach the first label 21 to the edges at both ends of the first crease 113.

[0067] To be compatible with attaching the first label 21 to both seals 13 of the product, please refer to Figures 1 to 3 , in this embodiment, the label attaching device further includes a second attaching mechanism 34. The second attaching mechanism 34 also includes a first attaching module 31. Thus, the label attaching device in this embodiment includes a first attaching mechanism 33 and a second attaching mechanism 34. When attaching the first label 21 to the product provided with the lifting ring 14, both the first attaching mechanism 33 and the second attaching mechanism 34 can suck the first label 21 from the label loading station. Then, first, the first attaching mechanism 33 attaches the first label 21 to the seal 13 on the same side as the lifting ring 14, and then the second attaching mechanism 34 attaches the first label 21 to the seal 13 on the other side of the product.

[0068] Specifically, the first attaching mechanism 33 further includes a second driving member 331. The second driving member 331 is configured to adjust the distance between the two first suction cups 311 along the first direction, so that the distance between the two first suction cups 311 can not only be adapted to the distance between the two seals 13 of the product, but also be adapted to the length of the first crease 113.

[0069] Therefore, when the label attaching device needs to attach the first label 21 to the product provided with the lifting ring 14, first, adjust the distance between the two first suction cups 311 along the first direction to be adapted to the length of the first crease 113. The product placed at the label attaching station is first in a posture with the side provided with the lifting ring 14 facing upward. The driving module 32 can drive the first attaching mechanism 33 and the second attaching mechanism 34 to move to the label loading station so that all the first attaching modules 31 suck the first label 21. Then, the driving module 32 drives the first attaching mechanism 33 and the second attaching mechanism 34 to move to the label attaching station.

[0070] After the first attaching mechanism 33 and the second attaching mechanism 34 move to the label attaching station, the first attaching mechanism 33 first attaches the first label 21 to the seal 13 on the same side as the pull ring 14. Specifically, the product placed at the label attaching station is in a posture with the side provided with the pull ring 14 facing upward. Since the first distance is adapted to the length of the first crease 113, for the first attaching mechanism 33, the two first suction cups 311 can respectively attach the first attaching areas 211 of the first labels 21 they suck to the two side edges of the closing plate 111 along the length direction of the tongue 112. That is, one of the first suction cups 311 can attach the first attaching area 211 of the first label 21 it sucks to one side edge of the closing plate 111 along the length direction of the tongue 112, and the other first suction cup 311 can attach the first attaching area 211 of the first label 21 it sucks to the other side edge of the closing plate 111 along the length direction of the tongue 112, and the two first suction cups 311 operate synchronously. And the second attaching areas 212 of the two first labels 21 both extend out of the product along the length direction of the tongue 112. Subsequently, the two label bending modules 312 of the first attaching mechanism 33 respectively bend and attach the second attaching areas 212 of the two first labels 21 to the product, and the two label bending modules 312 operate synchronously.

[0071] After that, the product placed at the label attaching station is adjusted to a posture with the side away from the pull ring 14 facing upward, and then the second attaching mechanism 34 attaches the first label 21 to the seal 13 on the other side of the product. Specifically, the second attaching mechanism 34 attaches the first label 21 to the edge that coincides with the first crease 113 on the upward side of the product.

[0072] As described above, in this embodiment, the label attaching device can be compatible with label attaching operations for products without a pull ring 14 and products provided with a pull ring 14. Specifically, when performing a label attaching operation on a product without a pull ring 14, only the first attaching mechanism 33 among the first attaching mechanism 33 and the second attaching mechanism 34 works, and the second driving member 331 adjusts the distance between the two first suction cups 311 in the first direction to be adapted to the distance between the two side seals 13 of the product. For the first attaching mechanism 33, one of the first attaching modules 31 is used to attach the first label 21 to the edge of one side seal 13 of the packaging box 1, and the other first attaching module 31 is used to attach the first label 21 to the edge of the other side seal 13 of the packaging box 1, so as to ensure that both side seals 13 of the product can be firmly held.

[0073] When performing a label attaching operation on a product provided with a pull ring 14, both the first attaching mechanism 33 and the second attaching mechanism 34 work, and the second driving member 331 adjusts the distance between the two first suction cups 311 in the first direction to be adapted to the length of the first crease 113.

[0074] Further, in this embodiment, the label attaching device further includes a first mounting plate 35. The first attaching mechanism 33 is mounted on the first mounting plate 35. It can be understood that the second attaching mechanism 34 is also mounted on the first mounting plate 35. The driving module 32 can drive the first mounting plate 35 to move, thereby driving the first attaching mechanism 33 and the second attaching mechanism 34 to move. A second mounting plate 332 is mounted on the movable end 3311 of the second driving member 331. For the first attaching mechanism 33, one of the first attaching modules 31 is mounted on the second mounting plate 332, and the other first attaching module 31 is fixedly connected to the first mounting plate 35. The second driving member 331 can adjust the distance between the two first suction cups 311 of the first attaching mechanism 33 in the first direction by driving the second mounting plate 332 to move in the first direction.

[0075] Based on the foregoing, for products without the lifting ring 14, the first distance is equal to the first value. For products provided with the lifting ring 14, the first distance is equal to the second value. To ensure that the second driving member 331 can accurately adjust the distance between the two first suction cups 311 of the first attaching mechanism 33 in the first direction to be exactly equal to the first value or the second value, in this embodiment, the body 3312 of the second driving member 331 is provided with a first limiting member 333 and a second limiting member 334. The first limiting member 333 and the second limiting member 334 are arranged at intervals in the first direction. A third limiting member 335 is mounted on the second mounting plate 332, and the third limiting member 335 is located between the first limiting member 333 and the second limiting member 334.

[0076] Thus, when the second driving member 331 drives the second mounting plate 332 to move in the first direction, the third limiting member 335 can abut against the first limiting member 333 or the second limiting member 334. Exemplarily, in this embodiment, the first limiting member 333 is located on the side close to the movable end 3311 of the second driving member 331, and the second limiting member 334 is located on the side far from the movable end 3311 of the second driving member 331. When the third limiting member 335 abuts against the first limiting member 333, the first distance is equal to the first value. When the third limiting member 335 abuts against the second limiting member 334, the first distance is equal to the second value.

[0077] It can be understood that the second driving member 331 can be selected as a linear driving structure such as a cylinder or an electric cylinder, and this embodiment does not make specific limitations on this.

[0078] In addition, it should be noted that in this embodiment, the positions of the first limiting member 333 and the second limiting member 334 in the first direction are adjustable, so that the first value and the second value can be adaptively adjusted according to the actual size of the product, and thus it is possible to be compatible with label attaching operations for products of different sizes.

[0079] Exemplarily, in this embodiment, both the first limiting member 333 and the second limiting member 334 are studs and both extend along the first direction. The first limiting member 333 and the second limiting member 334 are both screwed to the body 3312 of the second driving member 331. In this embodiment, the positions of the first limiting member 333 and the second limiting member 334 in the first direction can be adjusted by screwing the first limiting member 333 and the second limiting member 334.

[0080] Of course, in other alternative embodiments, the first limiting member 333 and the second limiting member 334 can also be installed on the body 3312 of the second driving member 331 by other position-adjustable connection methods, and this embodiment does not make specific restrictions on this.

[0081] In addition, it is worth noting that in this embodiment, each time the feeder loading module 37 loads materials, it conveys two first labels 21, and the distance between the two first labels 21 is adapted to the smaller one of the first value and the second value. For the first attaching mechanism 33, if the distance between the two first suction cups 311 does not match the distance between the two first labels 21, the second driving member 331 first adaptively adjusts the distance between the two first suction cups 311 to match the distance between the two first labels 21, and then picks up the materials. Moreover, after the material picking is completed, the second driving member 331 adjusts the distance between the two first suction cups 311 to recover.

[0082] From the above, for the product provided with the pull ring 14, when the driving module 32 drives the first attaching mechanism 33 and the second attaching mechanism 34 to move to the label loading station, the two first suction cups 311 of the first attaching mechanism 33 simultaneously suck the first label 21. For the product without the pull ring 14, when the driving module 32 drives the first attaching mechanism 33 and the second attaching mechanism 34 to move to the label loading station, the two first suction cups 311 of the first attaching mechanism 33 simultaneously suck the first label 21, and the first suction cup 311 of the second attaching mechanism 34 separately sucks the first label 21. Moreover, in continuous multiple material picking operations, the first attaching mechanism 33 and the second attaching mechanism 34 pick up materials alternately, so as to save the time consumed by the material picking operation, further improve the working efficiency of the labeling operation, and further improve the production efficiency of the product.

[0083] In addition, it should be noted that in this embodiment, the first suction cup 311 is provided with a plurality of columns of first adsorption holes 3111. Among them, the number of the first adsorption holes 3111 in the two outermost columns is less than the number of the first adsorption holes 3111 in the middle column, so as to be compatible with sucking the rectangular or circular first label 21.

[0084] Furthermore, as Figure 8 shown, in the actual production process, in addition to the first label 21, sometimes it is also necessary to label one of the surfaces of the product. For this purpose, please continue to refer toFigures 1 to 3 , in this embodiment, the label attaching device further includes a second attaching module 36. The second attaching module 36 includes a second suction cup 361. A plurality of columns of second suction holes 3611 are provided on the second suction cup 361. The second suction cup 361 is configured to suck the second label 22 and attach the second label 22 to one of the surfaces of the product. That is, the label attaching device can have the two functions of labeling on the edge of the product and on the surface of the product.

[0085] It can be understood that the second attaching module 36 is also installed on the first mounting plate 35. In addition to the second suction cup 361, the second attaching module 36 further includes a third driving member 362. The third driving member 362 is used to drive the second suction cup 361 to move in a direction perpendicular to its suction surface, so that the second suction cup 361 can suck the second label 22 and attach the second label 22 to one of the surfaces of the product.

[0086] Based on the foregoing, exemplarily, in this embodiment, the driving module 32 is a four-axis manipulator. Of course, in other alternative embodiments, according to the relative pose of the product placed at the label attaching station and the first label 21 located at the label loading station, the driving module 32 can also be a six-axis manipulator or a four-axis moving platform or a two-axis moving platform that only realizes translation in the horizontal and vertical directions, etc. This embodiment does not make specific limitations on this.

[0087] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A label attaching device for attaching a first label (21) to an edge at the seal (13) of a product such that the first label (21) is simultaneously adhered to two intersecting surfaces forming the edge, characterized in that, The label attaching device includes: A first attaching module (31), including a first suction cup (311) and a label bending module (312). The first suction cup (311) is configured to suck the first label (21) and attach the first label (21) to one of the two intersecting surfaces, such that a part of the first label (21) protrudes from the product. The label bending module (312) is configured to contact the protruding part of the first label (21) and guide the first label (21) to bend and gradually attach to the other of the two intersecting surfaces; A driving module (32), configured to drive the first attaching module (31) to move.

2. The label attaching device according to claim 1, wherein, The label bending module (312) includes a brush (3121) and a first driving member (3122). The first driving member (3122) is configured to drive the brush (3121) to move, so that the brush (3121) can press against the protruding part of the first label (21) to bend around the edge and gradually sweep across the protruding part of the first label (21).

3. The label attaching device according to claim 2, characterized in that, The brush (3121) is arranged on one side of the first suction cup (311) along the direction parallel to its adsorption surface, and the free ends of all bristles are adjacent to the first suction cup (311) in the direction parallel to the adsorption surface. The first driving member (3122) can drive the brush (3121) to move in the direction perpendicular to the adsorption surface.

4. The label attaching device according to claim 1, characterized in that, The label attaching device includes a first attaching mechanism (33). The first attaching mechanism (33) includes two of the first attaching modules (31). The two first attaching modules (31) can respectively attach the first label (21) to two edges of the product.

5. The label attaching device according to claim 4, characterized in that, In the first attaching mechanism (33), the two first suction cups (311) are arranged at intervals along a first direction, and the distance between the two first suction cups (311) can be adapted to the distance between the two seals (13) on both sides of the product.

6. The label attaching device according to claim 5, characterized in that, The label attaching device further includes a second attaching mechanism (34). The second attaching mechanism (34) includes the first attaching module (31); The first attaching mechanism (33) further includes a second driving member (331). The second driving member (331) is configured to adjust the distance between the two first suction cups (311) along the first direction.

7. The label attaching device according to claim 6, characterized in that, The label attaching device further includes a first mounting plate (35). The first attaching mechanism (33) is mounted on the first mounting plate (35). The driving module (32) can drive the first mounting plate (35) to move. The movable end (3311) of the second driving member (331) is provided with a second mounting plate (332). One of the first attaching modules (31) is mounted on the second mounting plate (332), and the other first attaching module (31) is fixedly connected to the first mounting plate (35); The body (3312) of the second driving member (331) is provided with a first limiting member (333) and a second limiting member (334), the first limiting member (333) and the second limiting member (334) are arranged at intervals along the first direction, a third limiting member (335) is mounted on the second mounting plate (332), and the third limiting member (335) is located between the first limiting member (333) and the second limiting member (334).

8. The label attaching device according to claim 7, wherein The positions of the first limiting member (333) and the second limiting member (334) in the first direction are adjustable.

9. The label attaching device according to claim 1, wherein The label attaching device further includes a second attaching module (36), the second attaching module (36) includes a second suction cup (361), and the second suction cup (361) is configured to suck a second label (22) and attach the second label (22) to one surface of the product.

10. The label attaching device according to claim 1, wherein, The first suction cup (311) is provided with a plurality of columns of first suction holes (3111), wherein the number of the first suction holes (3111) in the two outermost columns is less than the number of the first suction holes (3111) in the middle column.

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