CN214649632U

CN214649632U - Non-contact labeling machine

Info

Publication number: CN214649632U
Application number: CN202120913879.4U
Authority: CN
Inventors: 崔吉展
Original assignee: Shenzhen Yiqi Technology Co ltd
Current assignee: Shenzhen Yiqi Technology Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-11-09
Anticipated expiration: 2031-04-29

Abstract

The utility model discloses a non-contact labeller, including the labeller main part, set up in mainboard, conveyor in the labeller main part, set up the subsides mark device on the mainboard, paste the mark device at least including unreeling the subassembly, peel off the board subassembly and paste the mark subassembly, coiled subsides mark paper is placed on unreeling the subassembly to transmit to peeling off the board subassembly by unreeling the subassembly, paste the mark subassembly and include the label sucking disc at least, the bottom of label sucking disc is equipped with a plurality of label absorption holes, the label sucking disc can be through a plurality of label absorption hole adsorbs the label, the label sucking disc can be through a plurality of label absorption hole produces to the label and to keeping away from the effort of label sucking disc bottom, conveyor is located the bottom of label sucking disc, conveyor is last to be equipped with stop gear. The utility model discloses a labeller can not crush the product when pasting the mark, and this labeller can attach the label in unevenness's product surface.

Description

Non-contact labeling machine

Technical Field

The utility model relates to a labeller technical field, more specifically the utility model discloses a non-contact labeller.

Background

The existing labeling machine is generally provided with a label sucker and a moving mechanism connected with the label sucker, when the labeling machine operates, the label is generally adsorbed by the label sucker, and then the moving mechanism drives the label sucker to move, so that the label adsorbed on the label sucker is attached to a product. However, in the process of implementing the invention, the inventor finds that the following problems exist in the prior art: the existing labeling machine can only attach the label to a relatively flat surface of a product, the label sucker is attached to the product label through the label when labeling, and the label sucker is in rigid contact with the product. When the label needs to be attached to the uneven surfaces of products such as vegetables and fruits, labeling actions cannot be completed by the conventional labeling machine, and the products can be crushed by the label sucker when the products such as the vegetables and the fruits contact.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a non-contact labeller, the utility model discloses a labeller can not crush the product when pasting the mark, and this labeller can attach the label in unevenness's product surface.

The technical scheme is as follows:

non-contact labeller, including the labeller main part, set up in mainboard, conveyor in the labeller main part, set up the subsides mark device on the mainboard, the mark device is at least including unreeling the subassembly, peeling off the board subassembly and paste the mark subassembly, and coiled subsides mark paper is placed on unreeling the subassembly to transmit to peeling off the board subassembly by unreeling the subassembly, paste the mark subassembly and include the label sucking disc at least, the bottom of label sucking disc is equipped with a plurality of label absorption holes, the label sucking disc can be through a plurality of label absorption hole adsorbs the label, the label sucking disc can be through a plurality of the label absorption hole produces to the label and to keeping away from the effort of label sucking disc bottom, conveyor is located the bottom of label sucking disc, the last stop gear that is equipped with of conveyor.

Furthermore, the labeling device further comprises a vacuum adsorption assembly and a vacuum breaking assembly, and the vacuum adsorption assembly and the vacuum breaking assembly are connected with the label adsorption holes through gas conveying pipes respectively.

Further, still be provided with sucking disc adjustment mechanism in the labeller main part, sucking disc adjustment mechanism includes X axle adjusting part, Y axle adjusting part and Z axle adjusting part, X axle adjusting part Y axle adjusting part Z axle adjusting part all with the label sucking disc links to each other.

Further, X axle adjusting part includes X axle regulating plate, be equipped with a plurality of first adjustment tanks on the X axle regulating plate, be equipped with a plurality of first fixed orificess on the label sucking disc, the X axle regulating plate is through a plurality of first adjustment tank, a plurality of first fixed orificess with label sucking disc swing joint.

Further, Z axle adjusting part is fixed in on the X axle regulating plate, Z axle adjusting part includes first Z axle regulating plate, second Z axle regulating plate, be equipped with a plurality of second adjustment grooves on the first Z axle regulating plate, be equipped with a plurality of second fixed orificess on the second Z axle regulating plate, first Z axle regulating plate is through a plurality of second adjustment groove, second fixed orifices with second Z axle regulating plate swing joint.

Further, Y axle adjusting part includes Y axle regulating plate, be equipped with a plurality of third adjustment tank on the Y axle regulating plate, be equipped with a plurality of third fixed orificess on the second Z axle regulating plate, the Y axle regulating plate is through a plurality of third adjustment tank, third fixed orificess with second Z axle regulating plate links to each other.

Further, still be provided with a regulating mechanism in the labeller main part, a regulating mechanism includes unable adjustment base, connecting plate, a plurality of guide bar and adjusting screw, and is a plurality of the both ends of guide bar respectively with unable adjustment base, connecting plate link to each other, adjusting screw's both ends respectively with unable adjustment base, connecting plate swing joint, the last sliding connection piece that is equipped with of adjusting screw, sliding connection piece is with a plurality of the guide bar links to each other, paste the mark device with sliding connection piece links to each other.

Further, still be provided with second adjustment mechanism on the labeller main part, second adjustment mechanism includes the regulating spindle, adjusts the installation cover, it is fixed in to adjust the installation cover on the mainboard, the one end of regulating spindle with sliding connection piece swing joint, it locates to adjust the installation cover movable sleeve on the regulating spindle, the regulating spindle is relative adjusting screw sets up perpendicularly.

Furthermore, a control system and an operation panel are further arranged on the labeling machine main body, the control system is connected with the operation panel, the labeling device and the conveying device, and the control system is further connected with a control terminal.

Further, the limiting mechanism comprises a first limiting plate and a second limiting plate which are arranged oppositely, a first adjusting component connected with the first limiting plate, and a second adjusting component connected with the second limiting plate, and the distance between the first limiting plate and the second limiting plate is adjusted by the limiting mechanism through the first adjusting component and the second adjusting component.

The advantages or principles of the invention are explained below:

1. a plurality of label adsorption holes are formed in a label sucker of the non-contact labeling machine, when the labeling machine operates, products are conveyed through the conveying device, and then the labels conveyed by the unwinding assembly and the peeling assembly are adsorbed by the label sucker. When the product is conveyed to the position right below the label sucker, acting force towards the bottom of the label sucker is far away from the label sucker generated by the adsorption holes, and therefore the label is attached to the surface of the product. This non-contact labeller when pasting the mark the product need not with the contact of label sucking disc, can not crush the product, can attach the label in smooth product surface, still can attach the label in unevenness's product surface.

2. The label adsorption holes are respectively connected with the vacuum adsorption component and the vacuum breaking adsorption component. When the label needs to be adsorbed, the vacuum adsorption assembly is started, and the label is adsorbed on the label sucker through vacuum adsorption; when the label is required to be pasted, the vacuum breaking adsorption assembly is started, the label is blown through the vacuum breaking adsorption assembly and the plurality of label adsorption holes, the label is blown to the surface of the product through strong wind power, and the label is pasted.

Drawings

Fig. 1 is a schematic structural view of a non-contact labeling machine;

fig. 2 is another schematic view of the structure of the non-contact labeling machine;

fig. 3 is a schematic view of the combination of the labeling device with the first and second adjustment mechanisms;

fig. 4 is another schematic combination of the labeling device and the first and second adjustment mechanisms;

FIG. 5 is an exploded view of the suction cup adjustment mechanism;

FIG. 6 is a schematic view of the combination of the first adjustment assembly and the first limit plate;

description of reference numerals:

1. a labeler main body; 2. a main board; 3. a conveying device; 4. a labeling device; 40. an unwinding assembly; 41. stripping the plate assembly; 42. labeling the assembly; 401. placing the reel; 402. a film collecting disc; 403. a first film guide shaft; 404. a second film guide shaft; 405. a third film guide shaft; 406. a fourth film guide shaft; 407. collecting a label driving shaft; 5. film pressing sheets; 6. pressing a label seat; 7. a label pressing base fixing shaft; 8. a label pressing component; 9. detecting an electric eye; 420. a label sucker; 421. labeling a blowing rod; 422. a gas blowing hole; 10. a suction cup adjusting mechanism; 100. an X-axis adjusting plate; 101. a first regulating groove; 102. a first fixing hole; 103. a first Z-axis adjusting plate; 104. a second Z-axis adjusting plate; 105. a second regulating groove; 106. a second fixing hole; 107. a Y-axis adjusting plate; 108. a third regulating groove; 109. a third fixing hole; 11. a first adjustment mechanism; 110. a fixed base; 111. a connecting plate; 112. a guide bar; 113. adjusting the screw rod; 114. a sliding connection block; 115. a first adjusting hand wheel; 12. a second adjustment mechanism; 120. an adjustment shaft; 121. adjusting the mounting sleeve; 122. a second adjusting hand wheel; 13. a first limit plate; 14. a second limiting plate; 15. a first adjustment assembly; 16. a second adjustment assembly; 150. a first adjusting bracket; 151. a first adjusting lever; 152. a second adjusting bracket; 153. a second adjusting lever; 17. an operation panel.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "center", "inner", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

As shown in fig. 1, the present embodiment discloses a non-contact labeling machine, which includes a labeling machine body 1, a main board 2 disposed on the labeling machine body 1, a conveying device 3, and a labeling device 4 disposed on the main board 2. The labeling device 4 at least comprises an unwinding assembly 40, a peeling plate assembly 41 and a labeling assembly 42, wherein the roll-shaped labeling paper is placed on the unwinding assembly 40, is transmitted to the peeling plate assembly 41 from the unwinding assembly 40, and is adsorbed and adhered to the label by the labeling assembly 42.

As shown in fig. 2 to 4, the unwinding assembly 40 includes an unwinding disc 401, a film winding disc 402, a first film guiding shaft 403, a second film guiding shaft 404, a third film guiding shaft 405, a fourth film guiding shaft 406, and a label winding driving shaft 407. The roll-shaped labeling paper is placed on the unwinding disc 401, one end of the labeling paper sequentially passes through the first film guide shaft 403, the second film guide shaft 404 and the third film guide shaft 405, then is transmitted to the peeling plate assembly 41 to peel off the label, and then enters the film collecting disc 402 after passing through the label collecting driving shaft 407 and the fourth film guide shaft 406.

In order to fix the label paper, a film pressing sheet 5 is further arranged on the main board 2, and the film pressing sheet 5 is located on one side of the first die guide shaft. The film pressing sheet 5 is fixed on the label pressing base 6, the label pressing base 6 is fixed on the mainboard 2 through the label pressing base fixing shaft 7, and the labeling paper is located between the film pressing sheet 5 and the first guide mold shaft.

The main board 2 is further provided with a label pressing component 8 and a detection electric eye 9, and the label pressing component 8 is located on one side of the second label receiving driving shaft 407. The detection electric eye 9 is positioned on one side of the stripping plate component 41, whether a label exists or not can be detected through the detection electric eye 9, and the label can be replaced in time according to a detection result.

In order to realize adsorbing and pasting the label, subsides mark subassembly 42 includes label sucking disc 420 at least, label sucking disc 420's bottom is equipped with a plurality of label absorption holes, label sucking disc 420 can be through a plurality of label absorption hole adsorbs the label, label sucking disc 420 can be through a plurality of label absorption hole produces to the label and keeps away from the effort of label sucking disc 420 bottom. The conveying device 3 is located at the bottom of the label suction cup 420.

When the labeler operates, a product is conveyed by the conveying device 3, and then the label suction cups 420 suck the labels conveyed from the unwinding assembly 40 and the peeling plate assembly 41. When the product is conveyed to the position right below the label sucking disc 420, acting force towards the bottom far away from the label sucking disc 420 is generated on the label through the plurality of sucking holes, so that the label is attached to the surface of the product. This non-contact labeller product need not contact with label sucking disc 420 when pasting the mark, can not crush the product, can attach the label in smooth product surface, still can attach the label in unevenness's product surface.

Labeling device 4 still includes vacuum adsorption subassembly and broken vacuum subassembly, the vacuum adsorption subassembly broken vacuum subassembly respectively through the gas-supply pipe with a plurality of label adsorbs the hole connection. When the label needs to be adsorbed, the vacuum adsorption assembly is started, and the label is adsorbed on the label sucking disc 420 through vacuum adsorption; when the label is required to be pasted, the vacuum breaking adsorption assembly is started, the label is blown through the vacuum breaking adsorption assembly and the plurality of label adsorption holes, the label is blown to the surface of the product through strong wind power, and the label is pasted.

Preferably, the vacuum breaking assembly comprises a vacuum breaking electromagnetic valve, an air storage tank and an air compressor, the vacuum breaking electromagnetic valve is connected with the plurality of label adsorption holes through an air conveying pipe, the vacuum breaking electromagnetic valve is connected with the air storage tank through the air conveying pipe, and the air storage tank is connected with the air compressor through the air conveying pipe. The vacuum adsorption component comprises a vacuum generator and a vacuum electromagnetic valve, the vacuum electromagnetic valve is connected with an air compressor through a gas pipe, the vacuum electromagnetic valve is connected with the vacuum generator through the gas pipe, and the vacuum generator is connected with a vacuum breaking electromagnetic valve through the gas pipe.

When the label is required to be adsorbed, the vacuum breaking electromagnetic valve is in an original state, the vacuum electromagnetic valve works to drive the vacuum generator to work, air flow enters the vacuum generator through the label adsorption holes and enters the vacuum generator after passing through the vacuum breaking electromagnetic valve, and label adsorption action is completed.

When the label is required to be attached to the surface of a product, the vacuum breaking electromagnetic valve works to instantly release gas in the gas storage tank, and the gas is sprayed out through the label adsorption hole, so that the label on the label sucker is sprayed out, and the label is attached to the surface of the product. The pressure of the gas during spraying is 0.6-0.8 kpa.

Labeling assembly 42 also includes labeling gas blow rod 421, labeling gas blow rod 421 is located below label suction cup 420, and labeling gas blow rod 421 is provided with a plurality of gas blow holes 422. When the label sucking disc 420 sucks the label, the label blowing rod 421 starts to work to assist the label sucking disc 420 to suck the label.

In order to make the label adsorbed by the label sucking disc 420 accurately attached to the surface of the product, the label sucking disc 420 can be adapted to different requirements of the product. This embodiment is in still be provided with sucking disc adjustment mechanism 10 on labeller main part 1, sucking disc adjustment mechanism 10 includes X axle adjusting part, Y axle adjusting part and Z axle adjusting part, X axle adjusting part Y axle adjusting part Z axle adjusting part all with label sucking disc 420 links to each other. The positions of the label suction cup 420 on the X axis, the Y axis and the Z axis can be adjusted through the X axis adjusting assembly, the Y axis adjusting assembly and the Z axis adjusting assembly.

As shown in fig. 5, the X-axis adjusting assembly includes an X-axis adjusting plate 100, a plurality of first adjusting grooves 101 are provided on the X-axis adjusting plate 100, a plurality of first fixing holes 102 are provided on the label holding cup 420, and the X-axis adjusting plate 100 is movably connected to the label holding cup 420 through a plurality of first adjusting grooves 101, a plurality of first fixing holes 102. Preferably, the number of the first adjusting grooves 101 and the first fixing holes 102 is four. The label suction cup 420 can be fixed to the X-axis adjusting plate 100 by inserting a fastener into the first adjusting groove 101 and the first fixing hole 102. The position of the label cup 420 can be adjusted on the X-axis after the fastener is removed.

The Z-axis adjusting assembly comprises a first Z-axis adjusting plate 103 and a second Z-axis adjusting plate 104, wherein the first Z-axis adjusting plate 103 is fixed on the X-axis adjusting plate 100. Be equipped with a plurality of second adjustment tank 105 on first Z axle regulating plate 103, be equipped with a plurality of second fixed orificess 106 on the second Z axle regulating plate 104, first Z axle regulating plate 103 is through a plurality of second adjustment tank 105, second fixed orificess 106 with second Z axle regulating plate 104 swing joint. First Z-axis adjustment plate 103 and second Z-axis adjustment plate 104 can be fixed by inserting fasteners into second adjustment groove 105 and second fixing hole 106. The position of the second Z-axis adjustment plate 104, and thus the position of the label holder 420, can be adjusted in the Z-axis after the fasteners are removed.

Y axle adjusting part includes Y axle regulating plate 107, be equipped with a plurality of third adjusting groove 108 on the Y axle regulating plate 107, be equipped with a plurality of third fixed orificess 109 on the second Z axle regulating plate 104, Y axle regulating plate 107 is through a plurality of third adjusting groove 108, third fixed orificess 109 with second Z axle regulating plate 104 links to each other. The Y-axis adjusting plate 107 is fixed on the main board 2, and the number of the third adjusting slots 108 and the number of the third fixing holes 109 are four. The second Z-axis adjusting plate 104 can be fixed to the Y-axis adjusting plate 107 by inserting fasteners into the third adjusting grooves 108 and the third fixing holes 109, and the position of the second Z-axis adjusting plate 104 can be adjusted on the Y-axis by removing the fasteners, thereby adjusting the position of the label holder 420 on the Y-axis.

In order to adjust the position of the labeling device 4 and adapt the labeling device 4 to different use requirements of different products, the labeling machine body 1 of the present embodiment is further provided with a first adjusting mechanism 11, and the first adjusting mechanism 11 is used for adjusting the position of the whole labeling device 4 on the Y axis.

The first adjusting mechanism 11 includes a fixing base 110, a connecting plate 111, a plurality of guide rods 112, and an adjusting screw 113. The fixed base 110 is fixed on the labeler body 1, the bottoms of the guide rods 112 are fixed on the fixed base 110, and the tops of the guide rods 112 are connected with the connecting plate 111. Preferably, the number of the guide rods 112 is three. Two ends of the adjusting screw 113 are respectively movably connected with the fixed base 110 and the connecting plate 111, a sliding connecting block 114 is arranged on the adjusting screw 113, the sliding connecting block 114 is connected with the plurality of guide rods 112, and the labeling device 4 is connected with the sliding connecting block 114. In order to facilitate the rotation of the adjusting screw 113, a first adjusting handwheel 115 is also arranged on the top of the adjusting screw 113.

When the position of the labeling device 4 on the Y axis needs to be adjusted, the first adjusting hand wheel 115 is rotated, the first adjusting hand wheel 115 drives the adjusting screw 113 to rotate, and the adjusting screw 113 drives the sliding connection block 114 to move up and down on the adjusting screw 113 in the rotating process, so that the position of the labeling device 4 on the Y axis is adjusted.

The labeler main body 1 is further provided with a second adjusting mechanism 12, the second adjusting mechanism 12 is connected with the labeling device 4, and the second adjusting mechanism 12 is used for adjusting the position of the labeling device 4 on the Z axis. The second adjusting mechanism 12 comprises an adjusting shaft 120 and an adjusting mounting sleeve 121, the adjusting mounting sleeve 121 is fixed on the mainboard 2, one end of the adjusting shaft 120 is movably connected with the sliding connection block 114, the adjusting mounting sleeve 121 is movably sleeved on the adjusting shaft 120, and the adjusting shaft 120 is opposite to the adjusting screw 113.

The adjusting shaft 120 is provided with scales, and one end of the adjusting shaft 120 is provided with a second adjusting hand wheel 122. The second adjusting handwheel 122 is rotated to drive the adjusting shaft 120 to rotate, and the adjusting shaft 120 drives the adjusting installation sleeve 121 to move on the adjusting shaft 120 in the rotating process, so as to drive the labeling device 4 to move on the X axis and adjust the position of the labeling device 4 on the X axis.

When the non-contact labeling machine operates, the conveying device 3 conveys the product to the position below the label sucking disc 420 for label sticking, and after the label sticking is completed, the conveying device 3 conveys the product out. Preferably, the conveyor means 3 are rotated by a drive motor to drive the belt in rotation, which in turn drives the movement of the products located on the belt.

In order to limit the products conveyed on the conveyor belt, a limiting mechanism is arranged on the conveying device 3. The limiting mechanism comprises a first limiting plate 13 and a second limiting plate 14 which are arranged oppositely, a first adjusting component 15 connected with the first limiting plate 13 and a second adjusting component 16 connected with the second limiting plate 14, and the limiting mechanism adjusts the distance between the first limiting plate 13 and the second limiting plate 14 through the first adjusting component 15 and the second adjusting component 16.

Preferably, the first adjusting assembly 15 and the second adjusting assembly 16 have the same structure, and both the first adjusting assembly 15 and the second adjusting assembly 16 are provided. As shown in fig. 6, each of the first adjusting assembly 15 and the second adjusting assembly 16 includes a first adjusting bracket 150, a first adjusting rod 151, a second adjusting bracket 152 and a second adjusting rod. The first adjusting bracket 150 is fixed on one side of the conveyor belt, the first adjusting rod 151 is movably connected with the first adjusting bracket 150 through an adjusting nut, the second adjusting bracket 152 is fixedly connected with the first adjusting rod 151, and the second adjusting rod 153 is movably connected with the second adjusting bracket 152 through an adjusting nut. The first limit plate 13 is connected to the second adjusting bracket 152 of the first adjusting assembly 15, and the second limit plate 14 is connected to the second adjusting bracket 152 of the second adjusting assembly 16.

The height of first limiting plate 13, second limiting plate 14 in vertical direction can be adjusted through first regulation pole 151 to this embodiment, can adjust the distance between first limiting plate 13 and the second limiting plate 14 through second regulation pole 153 to make first limiting plate 13, second limiting plate 14 can satisfy the spacing requirement of multiple product.

The labeling machine is characterized in that the labeling machine main body 1 is further provided with a control system and an operation panel 17, the control system is connected with the operation panel 17, the labeling device 4 and the conveying device 3, and the control system is further connected with a control terminal. The non-contact labeling machine can be operated and controlled through the operation panel 17, the control system of the non-contact labeling machine is an MCU control chip, the control system is a control system used on the existing labeling machine, and the control mode and the control method of the control system are both in the prior art. The control system and the control terminal can be connected through Bluetooth and the like, so that the conditions such as the operating parameters of the labeling machine are transmitted to the control terminal, and the control terminal is a mobile phone end or a computer end and the like.

When the labeling machine operates, firstly, after the vacuum adsorption component and the vacuum breaking component operate for 1ms, the control system controls the stripping plate component 41 to convey a label, and transmits a label adsorption signal to the vacuum adsorption component, and after the vacuum adsorption component receives the label adsorption signal, the label is adsorbed by the label sucker 420. After the control system transmits the labeling signal to the vacuum breaking assembly, the vacuum breaking assembly blows air to the label through the label sucking disc 420, so that the label is attached to the surface of the product.

The above-mentioned "fastener" is a bolt or a screw, etc.

The embodiment of the present invention is not limited to this, according to the above-mentioned content of the present invention, the common technical knowledge and the conventional means in the field are utilized, without departing from the basic technical idea of the present invention, the present invention can also make other modifications, replacements or combinations in various forms, all falling within the protection scope of the present invention.

Claims

1. The non-contact labeling machine is characterized by comprising a labeling machine main body, a main board, a conveying device and a labeling device, wherein the main board, the conveying device and the labeling device are arranged on the main board, the labeling device at least comprises an unwinding assembly, a peeling plate assembly and a labeling assembly, rolled labeling paper is placed on the unwinding assembly and is transmitted to the peeling plate assembly through the unwinding assembly, the labeling assembly at least comprises a label sucker, the bottom of the label sucker is provided with a plurality of label sucking holes, the label sucker can suck labels through the label sucking holes, the label sucker can generate acting force for the labels to keep away from the bottom of the label sucker through the label sucking holes, the conveying device is located at the bottom of the label sucker, and a limiting mechanism is arranged on the conveying device.

2. A non-contact labelling machine as claimed in claim 1, wherein the labelling apparatus further comprises a vacuum suction assembly and a vacuum breaking assembly, the vacuum suction assembly and the vacuum breaking assembly being connected to the plurality of label suction holes via air pipes, respectively.

3. A non-contact labelling machine according to claim 1 or 2, wherein a suction cup adjusting mechanism is further provided on the labelling machine body, the suction cup adjusting mechanism comprises an X-axis adjusting assembly, a Y-axis adjusting assembly and a Z-axis adjusting assembly, and the X-axis adjusting assembly, the Y-axis adjusting assembly and the Z-axis adjusting assembly are all connected to the label suction cup.

4. A non-contact labelling machine according to claim 3, wherein said X-axis adjustment assembly comprises an X-axis adjustment plate having a plurality of first adjustment slots and a plurality of first fixing holes, said X-axis adjustment plate being movably coupled to said label holder via said plurality of first adjustment slots and said plurality of first fixing holes.

5. A non-contact labelling machine according to claim 4, wherein said Z-axis adjustment assembly is fixed to said X-axis adjustment plate, said Z-axis adjustment assembly comprises a first Z-axis adjustment plate and a second Z-axis adjustment plate, said first Z-axis adjustment plate is provided with a plurality of second adjustment grooves, said second Z-axis adjustment plate is provided with a plurality of second fixing holes, and said first Z-axis adjustment plate is movably connected to said second Z-axis adjustment plate through a plurality of said second adjustment grooves and second fixing holes.

6. A non-contact labelling machine according to claim 5, wherein said Y-axis adjustment assembly comprises a Y-axis adjustment plate having a plurality of third adjustment slots and a plurality of third fixing holes, said Y-axis adjustment plate being connected to said second Z-axis adjustment plate via said plurality of third adjustment slots and third fixing holes.

7. A non-contact labeling machine according to claim 1 or 2, wherein the labeling machine body is further provided with a first adjusting mechanism, the first adjusting mechanism comprises a fixed base, a connecting plate, a plurality of guide rods and an adjusting screw, both ends of the plurality of guide rods are respectively connected with the fixed base and the connecting plate, both ends of the adjusting screw are respectively movably connected with the fixed base and the connecting plate, the adjusting screw is provided with a sliding connection block, the sliding connection block is connected with the plurality of guide rods, and the labeling device is connected with the sliding connection block.

8. A non-contact labeling machine according to claim 7, wherein a second adjusting mechanism is further disposed on the labeling machine main body, the second adjusting mechanism comprises an adjusting shaft and an adjusting mounting sleeve, the adjusting mounting sleeve is fixed on the main machine plate, one end of the adjusting shaft is movably connected with the sliding connecting block, the adjusting mounting sleeve is movably sleeved on the adjusting shaft, and the adjusting shaft is vertically disposed relative to the adjusting screw.

9. A non-contact labelling machine according to claim 1, wherein the labelling machine body is further provided with a control system and an operating panel, the control system being connected to the operating panel, the labelling device and the transport device, the control system being further connected to a control terminal.

10. A non-contact labeling machine according to claim 1 wherein the limiting mechanism comprises a first limiting plate and a second limiting plate which are oppositely arranged, a first adjusting component connected with the first limiting plate, and a second adjusting component connected with the second limiting plate, and the limiting mechanism adjusts the distance between the first limiting plate and the second limiting plate through the first adjusting component and the second adjusting component.