Labeling power device of labeling rotating hub in labeling machine

Abstract

The utility model discloses a labeling power device of a labeling rotating hub in a labeling machine, which comprises a driving shaft, the driving shaft is driven by a rotation driving mechanism, a supporting disc is arranged on a connecting flange of the rotation driving mechanism, and a gas circuit tray is elastically supported on the supporting disc. A first vacuum adsorption groove, a second vacuum adsorption groove and a third vacuum adsorption groove hole assembly are sequentially arranged on a friction plate at the top of the gas circuit tray and are respectively communicated with a first negative pressure cavity, a second negative pressure cavity and a third negative pressure cavity on the gas circuit tray, and a first negative pressure adsorption opening, a second negative pressure adsorption opening and a third negative pressure adsorption opening are respectively arranged at the bottoms of the three negative pressure cavities. The first negative pressure adsorption port is positioned at the bottom of the first negative pressure cavity below the first vacuum adsorption tank at the radial corresponding position of the labeling station; and the second negative pressure adsorption port is positioned at the bottom of the second negative pressure cavity below the second vacuum adsorption tank at the radial corresponding position of the gluing station. The labeling rotating hub has the advantages that the label conveying stability of the labeling rotating hub can be improved, so that the labeling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid packaging equipment technical field, concretely relates to a labeling hub in labeling machine. BACKGROUND

[0002] The labeling hub is an important component of the labeling machine. In the rotation direction, the labeling hub is sequentially provided with an upper labeling station, a glue applying station and a labeling station outside. The label cutting roller at the upper labeling station delivers the cut labels to the labeling hub. The labeling hub adsorbs the labels by negative pressure and drives the labels to rotate synchronously. The glue roller at the glue applying station applies glue to the labels on the labeling hub. At the labeling station, the labeling hub pastes the labels on the containers filled.

[0003] Therefore, the bottom of the labeling hub is provided with a labeling power device. The labeling power device of the labeling hub provides the labeling hub with rotating power to drive the labeling hub to rotate and provides the labeling hub with adsorbing force to adsorb the labels by negative pressure, so that the side wall of the labeling hub can rotate with the adsorbed labels. The bottom of the labeling hub is provided with a labeling hub friction plate with a conductive hole that can conduct negative pressure. The labeling power device of the labeling hub in the current labeling machine mainly has the following technical problems: 1. The adsorbing stability of the negative pressure adsorbing force provided to the labeling hub to the labels is poor. The labels are not easy to be adsorbed at the upper labeling station or to fall off at the glue applying station. 2. The gear transmission mechanism is large in size and loud in noise. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the utility model is to provide a labeling power device of a labeling hub in a labeling machine, which can greatly improve the label delivery stability of the labeling hub and thus improve the labeling success rate and labeling efficiency.

[0005] The utility model discloses a technical scheme that is adopted: the label pasting power device of label pasting hub in label pasting machine, include: the drive shaft for driving label pasting hub rotation, and the drive shaft is driven by rotation drive mechanism, and the rotation drive mechanism is provided with the connecting flange, and the connecting flan is fixedly provided with annular support disc, and the support disc is elastically supported with annular air path tray on, and the top of air path tray is fixedly provided with friction plate, and the friction plate on the radial corresponding area from the rotation direction of label pasting hub from the top label station to label station is successively provided with first vacuum adsorption groove, second vacuum adsorption groove and third vacuum adsorption groove hole assembly for conducting negative pressure to label pasting hub, and first vacuum adsorption groove, second vacuum adsorption groove, third vacuum adsorption groove hole assembly are connected with first negative pressure cavity, second negative pressure cavity, third negative pressure cavity on air path tray respectively, and the bottom of three negative pressure cavities is provided with first negative pressure adsorption mouth, second negative pressure adsorption mouth, third negative pressure adsorption mouth connected with negative pressure pipeline respectively, and first negative pressure adsorption mouth is located at the bottom of first negative pressure cavity below first vacuum adsorption groove at the radial corresponding position of top label station, and the depth of first negative pressure cavity at first negative pressure adsorption mouth position is relatively deepest in entire first negative pressure cavity;Second negative pressure adsorption mouth is located at the bottom of second negative pressure cavity below second vacuum adsorption groove at the radial corresponding position of glue coating station, and the depth of second negative pressure cavity at second negative pressure adsorption mouth position is relatively deepest in entire second negative pressure cavity;Third vacuum adsorption groove hole assembly includes third vacuum adsorption groove and a plurality of vacuum adsorption holes, and the sum of the slot area of third vacuum adsorption groove and the hole area of vacuum adsorption hole gradually decreases along the rotation direction of label pasting hub.

[0006] Further, the label pasting power device of label pasting hub in the aforementioned label pasting machine, wherein the top of the air path tray is provided with an annular clamping groove, and the friction plate is fixedly arranged in the clamping groove.

[0007] Further, the label pasting power device of label pasting hub in the aforementioned label pasting machine, wherein the elastic support structure between the support disc and the air path tray comprises: a plurality of support springs arranged on the support disc, and a plurality of spring clamping grooves arranged on the bottom of the air path tray, the top of each spring being located in one spring clamping groove, and the air path tray being capable of tightly attaching the friction plate to the bottom of the label pasting hub under the elastic force of the spring.

[0008] Still further, the label pasting power device of label pasting hub in the aforementioned label pasting machine, wherein a vertical guide mechanism is arranged between the support disc and the air path tray, the vertical guide mechanism comprising: a plurality of guide columns vertically fixedly arranged on the support disc, and a plurality of guide holes arranged on the air path tray, each guide column being correspondingly arranged in one guide hole of the air path tray.

[0009] Further, the labeling power device of the labeling hub in the labeling machine, wherein the third vacuum adsorption groove in the third vacuum adsorption groove assembly comprises a third vacuum adsorption groove front section and a third vacuum adsorption groove rear section which are sequentially and communicatively arranged along the rotation direction of the labeling hub, the radial width of the third vacuum adsorption groove front section is greater than that of the third vacuum adsorption groove rear section; the vacuum adsorption holes comprise a plurality of first vacuum adsorption holes and a plurality of second vacuum adsorption holes, the first vacuum adsorption holes are connected to the tail end of the third vacuum adsorption groove front section and are arranged at intervals on the inner side of the third vacuum adsorption groove rear section in the radial direction, and the second vacuum adsorption holes are connected to the tail end of the third vacuum adsorption groove rear section and the first vacuum adsorption holes and are arranged at intervals from the tail end of the third vacuum adsorption groove rear section to the position corresponding to the labeling station in the radial direction; the arrangement of the third vacuum adsorption groove front section, the third vacuum adsorption groove rear section, the first vacuum adsorption holes and the second vacuum adsorption holes gradually reduces the hole area of the negative pressure adsorption conduction from the glue applying station to the labeling station.

[0010] Further, the labeling power device of the labeling hub in the labeling machine, wherein the third vacuum adsorption groove in the third vacuum adsorption groove assembly comprises a third vacuum adsorption groove front section and a third vacuum adsorption groove rear section which are sequentially and communicatively arranged along the rotation direction of the labeling hub, the radial width of the third vacuum adsorption groove front section is greater than that of the third vacuum adsorption groove rear section; the vacuum adsorption holes comprise a plurality of first vacuum adsorption holes and a plurality of second vacuum adsorption holes, the first vacuum adsorption holes are connected to the tail end of the third vacuum adsorption groove front section and are arranged at intervals on the inner side of the third vacuum adsorption groove rear section in the radial direction, and the second vacuum adsorption holes are connected to the tail end of the third vacuum adsorption groove rear section and the first vacuum adsorption holes and are arranged at intervals from the tail end of the third vacuum adsorption groove rear section to the position corresponding to the labeling station in the radial direction; the arrangement of the third vacuum adsorption groove front section, the third vacuum adsorption groove rear section, the first vacuum adsorption holes and the second vacuum adsorption holes gradually reduces the hole area of the negative pressure adsorption conduction from the glue applying station to the labeling station.

[0011] Further, the labeling power device of the labeling hub in the labeling machine, wherein the third vacuum adsorption groove in the third vacuum adsorption groove assembly comprises a third vacuum adsorption groove front section and a third vacuum adsorption groove rear section which are sequentially and communicatively arranged along the rotation direction of the labeling hub, the radial width of the third vacuum adsorption groove front section is greater than that of the third vacuum adsorption groove rear section; the vacuum adsorption holes comprise a plurality of first vacuum adsorption holes and a plurality of second vacuum adsorption holes, the first vacuum adsorption holes are connected to the tail end of the third vacuum adsorption groove front section and are arranged at intervals on the inner side of the third vacuum adsorption groove rear section in the radial direction, and the second vacuum adsorption holes are connected to the tail end of the third vacuum adsorption groove rear section and the first vacuum adsorption holes and are arranged at intervals from the tail end of the third vacuum adsorption groove rear section to the position corresponding to the labeling station in the radial direction; the arrangement of the third vacuum adsorption groove front section, the third vacuum adsorption groove rear section, the first vacuum adsorption holes and the second vacuum adsorption holes gradually reduces the hole area of the negative pressure adsorption conduction from the glue applying station to the labeling station.

[0012] The advantages of the labeling power device of the labeling hub in the labeling machine are as follows: 1. The structure is simple, the label can be reliably adsorbed by the labeling hub at the labeling station, thereby greatly improving the efficiency of the label transfer from the label cutting roller to the labeling hub, and the label on the labeling hub at the glue applying station can be reliably adsorbed, thereby greatly improving the labeling success rate of the label on the labeling hub, that is, the stability of the label conveying of the labeling hub can be greatly improved. 2. The servo motor and the speed reducer are used to drive the labeling hub to rotate through the driving shaft, the size of the driving mechanism is greatly reduced, and the noise is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic view of the labeling power device of the labeling hub in the labeling machine.

[0014] Figure 2 is a structural schematic view of the labeling power device of the labeling hub in the labeling machine.

[0015] Figure 3 is a structural schematic view of the labeling power device of the labeling hub in the labeling machine. DETAILED DESCRIPTION

[0016] The utility model will be explained in further detail below in combination with the drawings and preferred embodiments.

[0017] As Figure 1 , Figure 2 , Figure 3 The labeling power device of the labeling hub in the labeling machine comprises a driving shaft 2 for driving the labeling hub 1 to rotate, and the driving shaft 2 is driven by a rotating driving mechanism. In the embodiment, the rotating driving mechanism comprises a servo motor 3 and a speed reducer 4, and the lower end of the driving shaft 2 is connected with the output shaft of the speed reducer 4. The servo motor 3 and the speed reducer 4 provide power for the driving shaft 2, so as to drive the labeling hub 1 to rotate through the driving shaft 2. By using the power mechanism, the volume is greatly reduced, the noise is greatly reduced, and the rotating speed of the labeling hub 1 is more easily controlled.

[0018] In the embodiment, a connecting flange 41 is arranged on the cylinder of the speed reducer 4, and an annular support disc 5 is fixedly arranged on the connecting flange 41. An annular air path tray 6 is elastically supported on the support disc 5, and a friction plate 7 is fixedly arranged on the top of the air path tray 6. Specifically, the top of the air path tray 6 is provided with an annular clamping groove 601, and the friction plate 7 is fixedly arranged in the clamping groove 601. The clamping groove 601 plays a good positioning role. The elastic support structure between the support disc 5 and the air path tray 6 comprises: a plurality of support springs 51 arranged on the support disc 5, and a plurality of spring clamping grooves 602 arranged on the bottom of the air path tray 6. The top of each support spring 51 is located in one spring clamping groove 602, and the air path tray 6 can tightly adhere the friction plate 7 to the bottom of the labeling hub 1 under the elastic force of the support spring 51. In order to ensure that the air path tray 6 moves vertically without displacement, a vertical guide mechanism is arranged between the support disc 5 and the air path tray 6 in the embodiment, and the vertical guide mechanism comprises: a plurality of guide columns 52 vertically fixedly arranged on the support disc 5, and a plurality of guide holes 603 arranged on the air path tray 6, and each guide column 52 is correspondingly arranged in one guide hole 603 on the air path tray 6.

[0019] A first vacuum adsorption groove 71, a second vacuum adsorption groove 72 and a third vacuum adsorption hole assembly 73 are sequentially arranged on the friction plate 7 from the position corresponding to the labeling station 100 to the position corresponding to the labeling station 300 in the rotation direction of the labeling hub 1. The labeling hub friction plate at the bottom of the labeling hub 1 is supported on the friction plate 7, and under the action of the spring 51, the friction plate 7 is elastically pressed against the labeling hub friction plate at the bottom of the labeling hub 1. During the rotation of the labeling hub 1, the transmission holes on the labeling hub friction plate are sequentially communicated with the first vacuum adsorption groove 71, the second vacuum adsorption groove 72 and the third vacuum adsorption hole assembly 73 on the friction plate 7, thereby realizing negative pressure transmission. The first vacuum adsorption groove 71, the second vacuum adsorption groove 72 and the third vacuum adsorption hole assembly 73 are respectively communicated with the first negative pressure cavity 61, the second negative pressure cavity 62 and the third negative pressure cavity 63 on the air path tray 6, and the bottoms of the three negative pressure cavities are respectively provided with the first negative pressure adsorption port 611, the second negative pressure adsorption port 621 and the third negative pressure adsorption port 631 connected with the negative pressure pipeline. The first negative pressure adsorption port 611 is located at the bottom of the first negative pressure cavity 61 below the first vacuum adsorption groove 71 at the position corresponding to the labeling station 100, and the depth of the first negative pressure cavity 61 at the position of the first negative pressure adsorption port 611 is the deepest relative to the entire first negative pressure cavity, which ensures that the labeling hub 1 at the position of the labeling station 100 can instantly adsorb the label firmly, thereby greatly improving the conveying efficiency of the label between the label cutting roller 101 and the labeling hub 1. The second negative pressure adsorption port 621 is located at the bottom of the second negative pressure cavity 62 below the second vacuum adsorption groove 72 at the position corresponding to the labeling station 100, and the depth of the second negative pressure cavity 62 at the position of the second negative pressure adsorption port 621 is the deepest relative to the entire second negative pressure cavity 62. The purpose of such arrangement is to ensure that when the labeling hub 1 is labeled by the labeling roller 201 at the position of the labeling station 200, the label can be firmly adsorbed.

[0020] The third vacuum adsorption slot hole assembly 73 comprises a third vacuum adsorption slot 731 and a plurality of vacuum adsorption holes, and the sum of the slot opening area of the third vacuum adsorption slot and the hole opening area of the vacuum adsorption holes gradually decreases along the rotation direction of the labeling rotary hub 1. In this embodiment, the third vacuum adsorption slot 731 in the third vacuum adsorption slot hole assembly 73 comprises a third vacuum adsorption slot front section 7311 and a third vacuum adsorption slot rear section 7312 arranged in sequence along the rotation direction of the labeling rotary hub 1, and the radial width of the third vacuum adsorption slot front section 7311 is greater than that of the third vacuum adsorption slot rear section 7312. The vacuum adsorption holes comprise a plurality of first vacuum adsorption holes 732 and a plurality of second vacuum adsorption holes 733, the first vacuum adsorption holes 732 are connected to the tail end of the third vacuum adsorption slot front section 7311 and are arranged in intervals on the inner side of the radial direction of the third vacuum adsorption slot rear section 7312, and the second vacuum adsorption holes 733 are connected to the tail end of the third vacuum adsorption slot rear section 7312 and the tail end of the first vacuum adsorption holes 732 and are arranged in intervals from the tail end of the third vacuum adsorption slot rear section 7312 to the position corresponding to the radial direction of the labeling station 300. The arrangement of the third vacuum adsorption slot front section 7311, the third vacuum adsorption slot rear section 7312, the first vacuum adsorption holes 732 and the second vacuum adsorption holes 733 gradually reduces the hole area of the negative pressure adsorption and conduction from the glue applying station to the labeling station, and the purpose is to ensure that the labels on the labeling rotary hub 1 after being applied with glue can be reliably transported to the labeling station, and also to ensure that the labels at the labeling station can be reliably attached to the containers, effectively avoiding the situation that the negative pressure adsorption force is too large near the labeling station, which causes the labels to be unable to be attached to the containers.

[0021] In the labeling process, accidents may occur that the labels on the labeling rotary hub 1 cannot be successfully attached to the containers at the labeling station 300. In this case, the labels will be wound on the labeling rotary hub 1 and move with the rotation of the labeling rotary hub 1. In order to timely remove the labels on the labeling rotary hub 1 when the above failure occurs, a plurality of blow holes 74 for transmitting compressed gas to the labeling rotary hub are further arranged on the friction plate 7 in this embodiment, each blow hole 74 is in communication with a high-pressure gas delivery pipe 741 through the gas path tray 6, the blow hole 74 is located on the friction plate 7 corresponding to the region between the labeling station 300 and the labeling station 100 along the rotation direction of the labeling rotary hub 1, and is close to one side of the position corresponding to the radial direction of the labeling station 300. When the labels on the labeling rotary hub 1 cannot be successfully attached to the containers at the labeling station 300, the labels become waste labels, after the waste labels rotate with the labeling rotary hub 1 through the labeling station 300, the compressed gas in the high-pressure gas delivery pipe 741 is transmitted to the labeling rotary hub 1 through the gas path tray 6 and the blow hole 74, and the waste labels remaining on the labeling rotary hub are blown off by the positive pressure gas, that is, successfully removed. The friction plate 7 is further provided with a vacuum breaking hole 75, after the waste labels rotate with the labeling rotary hub 1 through the labeling station 300, the waste labels are blown off by the positive pressure gas after being broken vacuum.

[0022] The labeling power device of the labeling hub in the labeling machine has the following advantages: 1. The structure is simple, and the label can be reliably adsorbed by the labeling hub 1 in the labeling station 100, thereby greatly improving the efficiency of the label transmission from the label cutting roller to the labeling hub 1, and the label on the labeling hub 1 at the glue applying station 200 position can be reliably adsorbed, thereby greatly improving the labeling success rate of the labeling hub 1. 2. The servo motor and the speed reducer drive the labeling hub to rotate through the drive shaft, and the size of the driving mechanism is greatly reduced, and the noise is effectively reduced.

Claims

1. A labeling power device of a labeling turret in a labeling machine, comprising: The utility model provides a drive shaft for driving the rotation of a labeling rotary hub, the drive shaft being driven by a rotary drive mechanism, characterized in that a connecting flange is provided on the rotary drive mechanism, an annular support disc is fixedly arranged on the connecting flange, an annular air channel tray is elastically supported on the support disc, a friction plate is fixedly arranged on the top of the air channel tray, and a first vacuum suction groove, a second vacuum suction groove and a third vacuum suction hole assembly for conducting negative pressure to the labeling rotary hub are arranged in sequence on the friction plate corresponding to the radial region from an upper labeling station to a labeling station in the direction of rotation of the labeling rotary hub, the first vacuum suction groove, the second vacuum suction groove and the third vacuum suction hole assembly are respectively connected to a first negative pressure cavity, a second negative pressure cavity and a third negative pressure cavity on the air channel tray, the bottoms of the three negative pressure cavities are respectively provided with a first negative pressure suction port, a second negative pressure suction port and a third negative pressure suction port connected to a negative pressure pipeline, the first negative pressure suction port is located at the bottom of the first negative pressure cavity below the first vacuum suction groove corresponding to the radial position of the upper labeling station, and the depth of the first negative pressure cavity at the position of the first negative pressure suction port is the deepest relative to the entire first negative pressure cavity; the second negative pressure suction port is located at the bottom of the second negative pressure cavity below the second vacuum suction groove corresponding to the radial position of the glue applying station, and the depth of the second negative pressure cavity at the position of the second negative pressure suction port is the deepest relative to the entire second negative pressure cavity; the third vacuum suction hole assembly comprises a third vacuum suction groove and a plurality of vacuum suction holes, and the sum of the groove area of the third vacuum suction groove and the hole area of the vacuum suction holes gradually decreases in the direction of rotation of the labeling rotary hub.

2. A labelling power unit for a labelling turret in a labelling machine according to claim 1, characterised in that: The top of the air channel tray is provided with an annular clamping groove, and the friction plate is fixedly arranged in the clamping groove.

3. The labelling power unit of a labelling turret in a labelling machine according to claim 1, characterised in that: The elastic support structure between the support disc and the air channel tray comprises a plurality of support springs arranged on the support disc and a plurality of spring clamping grooves arranged on the bottom of the air channel tray, the top of each support spring is located in one spring clamping groove, and the air channel tray can tightly adhere the friction plate to the bottom of the labeling rotary hub under the elastic force of the support springs.

4. The labelling power unit of a labelling turret in a labelling machine according to claim 2, characterised in that: A vertical guide mechanism is arranged between the support disc and the air channel tray, the vertical guide mechanism comprises a plurality of guide columns fixedly arranged on the support disc and a plurality of guide holes arranged on the air channel tray, and each guide column is arranged in one guide hole on the air channel tray.

5. The labeling power unit of a labeling turret in a labeling machine according to claim 1, characterized in that: The third vacuum suction groove in the third vacuum suction groove hole assembly comprises a third vacuum suction groove front section and a third vacuum suction groove rear section which are sequentially and communicatively arranged along the rotation direction of the labeling rotary hub, the radial width of the third vacuum suction groove front section is greater than that of the third vacuum suction groove rear section; the vacuum suction holes comprise a plurality of first vacuum suction holes and a plurality of second vacuum suction holes, the first vacuum suction holes are connected to the tail end of the third vacuum suction groove front section and are arranged at intervals on the inner side of the third vacuum suction groove rear section in the radial direction, and the second vacuum suction holes are connected to the tail end of the third vacuum suction groove rear section and the first vacuum suction holes and are arranged at intervals from the tail end of the third vacuum suction groove rear section to the position corresponding to the labeling station in the radial direction; the arrangement of the third vacuum suction groove front section, the third vacuum suction groove rear section, the first vacuum suction holes and the second vacuum suction holes gradually reduces the hole area of the negative pressure suction and conduction from the rubber coating station to the labeling station.

6. The labeling power unit of a labeling turret in a labeling machine according to claim 1, characterized in that: The rotation driving mechanism comprises a servo motor and a speed reducer, the connecting flange is located on the cylinder body of the speed reducer, and the lower end of the driving shaft is connected with the speed reducer.

7. The labeling power unit of a labeling turret in a labeling machine according to claim 1, characterized in that: The friction plate is further provided with a blowing hole which is in communication with the high-pressure gas conveying pipe through the gas path tray, the blowing hole is located on the friction plate corresponding to the region between the labeling station and the labeling station in the radial direction along the rotation direction of the labeling rotary hub and close to one side of the position corresponding to the labeling station in the radial direction.

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