Roller pressing automatic printing and labeling machine and roller pressing method

Abstract

The present application relates to the technical fields of labeling machine, and particularly relates to a roller pressing and sticking type automatic printing labeling machine and a roller pressing and sticking method, which comprises a machine box, a roller pressing module is arranged on the side of the machine box, the roller pressing module comprises: a horizontal arm fixed to the side of the machine box; two movable seats movably arranged on the horizontal arm and capable of moving towards each other along the length direction of the horizontal arm, a first pressing roller and a second pressing roller with an internal hollow are respectively arranged on the two movable seats through a set of power mechanisms, the first pressing roller and the second pressing roller can be driven by the power mechanisms to perform a deflection action; the "V" type structure and the "I" type structure of the roller pressing module are switched, the phenomenon that the labels are not attached to the goods and wrinkles appear in the parts is avoided, and thus the sensing components of the automatic production line cannot smoothly scan the bar code of the labels on the goods in the subsequent assembly production, analysis errors are caused, and the production efficiency is seriously affected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of labeling machines, and particularly relates to a roll pressing and pasting type automatic printing labeling machine and a roll pressing and pasting method. BACKGROUND

[0002] In the field of automobile manufacturing today, the production process of an automobile is extremely complex and refined. A car is composed of tens of thousands of parts, which need to go through many processes in the production process. Many parts need to be pasted with corresponding labels to facilitate identification and subsequent assembly work. For example, in automobile production, the injection molding part for installing a horn on the frame needs to be pasted with a label after production, so that the part can be accurately identified and used in subsequent production processes.

[0003] In order to efficiently and accurately complete the labeling work, a labeling machine emerges as the times require. The basic principle of the labeling machine is to take the label from the label supply mechanism by a mechanical device and paste it to the designated position of the goods. In actual work, although the label has been initially pasted after the goods pass through the labeling module from the conveying belt, it cannot be guaranteed that the label is completely pasted to the goods. In order to ensure that the label is firmly pasted to the surface of the goods, the subsequent goods will pass through a pressure roller, which uses the pressure roller to roll the label to make the label more closely adhere to the surface of the goods.

[0004] Nowadays, the roll pressing of the label is usually completed by a long roller whose axis is perpendicular to the movement direction of the goods. However, this linear type of roll pressing method may cause the label to wrinkle at the part not pasted to the goods, in addition, the surface of the pressure roller may be attached with some dust and foreign matters after a long time of operation. The existence of these dust and foreign matters may cause scratches on the label in the subsequent roll pressing process. When these problems occur in the barcode area of the label, the sensing elements of the automatic production line will not be able to smoothly scan the barcode of the label on the goods in the subsequent assembly production, thereby causing analysis errors and seriously affecting production efficiency. SUMMARY

[0005] The present application aims to provide a roll pressing and pasting type automatic printing labeling machine and a roll pressing and pasting method to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A roll pressing and pasting type automatic printing labeling machine, comprising a machine box, a roll pressing module is arranged on the side of the machine box, and the roll pressing module comprises:

[0008] a cross arm fixed to the side of the machine box;

[0009] Two movable seats arranged on the cross arm and capable of moving towards each other along the length direction of the cross arm, and a first compression roller and a second compression roller are arranged on the two movable seats respectively through a set of power mechanisms, the first compression roller and the second compression roller can be driven by the power mechanisms to perform a deflection action, so that the first compression roller and the second compression roller form a "V" shape structure and a "I" shape structure respectively;

[0010] When the first compression roller and the second compression roller present the "V" shape structure, the goods with labels past the "V" shape structure along the goods conveying direction, the pressure mechanism arranged on the cross arm can cause the first compression roller and the second compression roller to press the labels on the goods, when the first compression roller and the second compression roller present the "I" shape structure, through the air guide structure away from one end of the first compression roller of the second compression roller, air can be blown to the axial direction of the "I" shape structure.

[0011] As a further scheme of the present application: the power mechanism includes a stand pipe arranged on the movable seat, the stand pipe is in communication with the end of the first compression roller, and the stand pipe can be driven by the gear assembly arranged on the movable seat to drive the first compression roller to perform a deflection action, the stand pipe is also connected with the pressure mechanism, and the pressure mechanism can drive the stand pipe to move along the vertical direction relative to the movable seat.

[0012] As a further scheme of the present application: the gear assembly includes a drive pipe rotatably installed on the movable seat, the drive pipe is slidably sleeved with the stand pipe, and a transmission structure is arranged between the drive pipe and the stand pipe, the gear assembly further includes a drive motor installed on the movable seat, a first gear fixed on the output shaft of the drive motor, and a second gear fixed on the drive pipe, and the first gear is engaged with the second gear.

[0013] As a further scheme of the present application: the transmission structure includes two strip-shaped protrusions arranged on the outer wall of the stand pipe and two strip-shaped grooves arranged on the inner wall of the drive pipe, the strip-shaped grooves are matched with the strip-shaped protrusions, and the strip-shaped grooves and the strip-shaped protrusions are parallel to the central axis of the drive pipe and the stand pipe.

[0014] As a further scheme of the present application: the pressure mechanism includes a pneumatic assembly arranged on the cross arm, the pneumatic assembly is connected with two groups of elastic transmission structures symmetrically arranged on the cross arm, and each of the two groups of elastic transmission structures is connected with two stand pipes through a set of telescopic arms.

[0015] As a further scheme of the present application: the pneumatic assembly includes two air cylinders fixed on the cross arm and a drive arm fixedly connected with the movable ends of the two air cylinders, and the two ends of the drive arm are respectively connected with the two groups of elastic transmission structures.

[0016] As a further scheme of the present application: the elastic transmission structure comprises a guide arm slidingly arranged on the cross arm, and a mounting cavity is arranged in the guide arm, and a sliding block fixedly connected with the driving arm is slidingly arranged in the mounting cavity;

[0017] The guide arm is connected with the telescopic arm group, a guide column is further fixed in the mounting cavity, the sliding block is slidingly connected with the guide column, a spring is further sleeved on the outer periphery of the guide column, one end of the spring is connected with the inner wall of the mounting cavity, and the other end of the spring is connected with the sliding block.

[0018] As a further scheme of the present application: the telescopic arm group comprises a first connecting arm fixedly installed on the side, away from the driving arm, of the guide arm and a second connecting arm slidingly sleeved with the first connecting arm, and the end, away from the guide arm, of the second connecting arm is rotationally connected with the stand pipe.

[0019] As a further scheme of the present application: the air guide structure comprises a circular truncated cone arranged on the end, away from the first compression roller, of the second compression roller, a plurality of air channels, which are in communication with the second compression roller, are equidistantly arranged on the circular truncated cone in a circumferential direction, a conical protrusion and an annular portion are further arranged in the second compression roller, a slit, through which the air channels pass, is formed between the conical protrusion and the annular portion, and the stand pipe connected with the first compression roller is further connected with an air pump arranged in the cabinet through a hose.

[0020] The method for rolling and pressing the label by the automatic printing and labeling machine comprises the following steps: when the first compression roller and the second compression roller present a "V" type structure, the pressing mechanism provides pressure to the first compression roller and the second compression roller, so that the first compression roller and the second compression roller act on the surface of the goods and promote the label to stretch outward.

[0021] When the first compression roller and the second compression roller present a "I" type structure, air is pumped into the first compression roller and the second compression roller, the air passes through the air guide structure, a plurality of axial air flow beams are formed on the outer periphery of the "I" type structure, and dust and foreign matters on the outer walls of the first compression roller and the second compression roller are blown away.

[0022] Compared with the prior art, the present application has the following beneficial effects:

[0023] The first compression roller and the second compression roller can present a "V" type structure and a "I" type structure, when the label is rolled and pressed, the "V" type structure can be used to stretch the label outward, thereby effectively promoting the overall adhesion of the label to the surface of the goods, avoiding the phenomenon that the straight-line type rolling method causes the label to not adhere to the surface of the goods in some positions, thereby causing the sensing components of the automatic production line to fail to smoothly scan the bar code of the label on the goods in subsequent assembly production, leading to analysis errors, and thereby seriously affecting the production efficiency.

[0024] When the first compression roller and the second compression roller present a "one" type structure, the cylindrical chamber formed by the first compression roller and the second compression roller is pumped with gas through the hose and the vertical pipe, the gas is uniformly divided along the circumference by the conical protrusion, enters the air duct through the gap between the conical protrusion and the annular part, and is finally blown out along the axial direction of the "one" type structure, so that a plurality of axial gas flow beams are formed on the outer periphery of the "one" type structure, which can effectively blow off dust and foreign matter on the outer wall of the first compression roller and the second compression roller, avoid the problem of scratching the label during subsequent roller pressing, ensure that the label information can be effectively recognized during subsequent processing, and provide effective protection for production efficiency.

[0025] The present application provides an integrated solution, wherein the roller pressing mechanism itself can be switched from a "v" type structure to a "one" type structure by reconstruction, so as to realize comprehensive label fitting and efficient self-cleaning function, thereby avoiding that the sensing components cannot smoothly scan the product label, and improving the production efficiency of the automatic production line. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The isometric view of an embodiment of the roller pressing and close fitting type automatic printing and labeling machine.

[0027] Figure 2 The structural schematic view of an embodiment of the roller pressing and close fitting type automatic printing and labeling machine.

[0028] Figure 3 The structural schematic view of another angle of an embodiment of the roller pressing and close fitting type automatic printing and labeling machine.

[0029] Figure 4 The structural schematic view of another angle of an embodiment of the roller pressing and close fitting type automatic printing and labeling machine.

[0030] Figure 5 The isometric view of an embodiment of the roller pressing and close fitting type automatic printing and labeling machine. Figure 4 The structural schematic view of another angle of an embodiment of the roller pressing and close fitting type automatic printing and labeling machine.

[0031] Figure 6 The structural schematic view of another angle of an embodiment of the roller pressing and close fitting type automatic printing and labeling machine.

[0032] Figure 7 The structural schematic view of another angle of an embodiment of the roller pressing and close fitting type automatic printing and labeling machine.

[0033] Figure 8 The structural schematic view of another angle of an embodiment of the roller pressing and close fitting type automatic printing and labeling machine.

[0034] Figure 9 The isometric view of an embodiment of the roller pressing and close fitting type automatic printing and labeling machine. Figure 8 The structural schematic view of another angle of an embodiment of the roller pressing and close fitting type automatic printing and labeling machine.

[0035] Figure 10 For Figure 8 Enlarged view of the structure at B.

[0036] Figure 11 For the local sectional view of the "I" type structure in an embodiment of the roll-on automatic printing and labeling machine.

[0037] Figure 12 For Figure 11 Enlarged view of the structure at C.

[0038] In the figure: 1, case; 2, first winding roller; 3, second winding roller; 4, printing module; 5, placement table; 6, third winding roller; 7, cross arm; 8, movable seat; 9, first compression roller; 10, second compression roller; 1001, circular table; 1002, conical protrusion; 1003, annular part; 1004, air channel; 11, drive pipe; 1101, strip-shaped groove; 12, vertical pipe; 1201, strip-shaped protrusion; 1202, hose; 13, drive motor; 14, first gear; 15, second gear; 16, guide arm; 17, guide column; 18, spring; 19, sliding block; 20, first connecting arm; 21, second connecting arm; 22, air cylinder; 23, drive arm. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] In addition, the elements in the present application are referred to as "fixed to" or "provided on" another element, which can be directly on another element or can have a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or can have a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0041] Please refer to Figures 1-12 In the embodiments of the present application, a roll-on automatic printing and labeling machine includes a case 1, and the side of the case 1 is provided with a roll-on module, which includes:

[0042] A cross arm 7 fixed to the side of the case 1;

[0043] Two movable seats 8 are arranged on the cross arm 7 and can move towards each other along the length direction of the cross arm 7, and a first compression roller 9 and a second compression roller 10 are arranged on the two movable seats 8 respectively through a set of power mechanisms, the first compression roller 9 and the second compression roller 10 can be driven by the power mechanisms to perform a deflection action so as to form a "V" shape structure and a "I" shape structure respectively;

[0044] When the first compression roller 9 and the second compression roller 10 form the "V" shape structure, the goods with the labels are passed through the "V" shape structure along the goods conveying direction, the pressing mechanism arranged on the cross arm 7 can press the labels on the goods, and when the first compression roller 9 and the second compression roller 10 form the "I" shape structure, the air guide structure away from the one end of the first compression roller 9 can blow air to the axial direction of the "I" shape structure.

[0045] It should be noted that the side of the machine box 1 is provided with a first winding roller 2 for winding the carbon tape, and the side of the machine box 1 is also provided with a placing table 5 for placing the label roll, the label and the carbon tape enter the printing module 4 for printing, and the carbon tape after printing is collected by the second winding roller 3 arranged on the side of the machine box 1, and the bottom paper after the label is pasted is collected by the third winding roller 6 arranged on the side of the machine box 1;

[0046] The arrangement and use of the first winding roller 2, the second winding roller 3, the printing module 4, the placing table 5 and the third winding roller 6 can refer to the prior art, and the application will not be described here;

[0047] In work, the goods are conveyed by the conveying belt, pass through the side of the machine box 1 in sequence, the label information is printed on the label by the printing module 4, and when the goods pass through the label to be pasted, the label is pasted on the upper side of the goods, then the goods pass through the first compression roller 9 and the second compression roller 10, at this time, the first compression roller 9 and the second compression roller 10 are in an inclined state and maintain the "V" shape structure, and the pressing mechanism makes the first compression roller 9 and the second compression roller 10 apply a certain pressure to the upper surface of the goods, so that under the compression of the first compression roller 9 and the second compression roller 10, the label has a tendency to expand outward, which is beneficial to the outward expansion of the part of the label not in close contact with the goods, and ensures that the label and the goods are effectively and completely pasted.

[0048] Further, two symmetrical through grooves are arranged on the cross arm 7, two movable seats 8 are respectively slidably embedded in the two through grooves, and one side of the cross arm 7 is provided with a servo drive module. Specifically, the servo drive module comprises a bidirectional screw rod rotatably installed on the side of the cross arm 7 and a servo motor installed on the side of the cross arm 7 and having an output end connected with the bidirectional screw rod. Two threaded sleeves are sleeved on the bidirectional screw rod, and the two threaded sleeves are respectively fixedly connected with the two movable seats 8.

[0049] Since the two groups of power mechanisms have the same structure, hereinafter, the power mechanism connected with the first winding roller 2 will be described in detail.

[0050] Please refer again to Figure 8 and Figure 10 The power mechanism comprises a stand pipe 12 arranged on the movable seat 8, the stand pipe 12 is communicated with the end of the first compression roller 9, and the stand pipe 12 can be driven by a toothed assembly arranged on the movable seat 8 to drive the first compression roller 9 to perform a deflection action. The stand pipe 12 is also connected with the pressure applying mechanism, and the pressure applying mechanism can drive the stand pipe 12 to move along the vertical direction relative to the movable seat 8. The toothed assembly comprises a drive pipe 11 rotatably installed on the movable seat 8, the drive pipe 11 is slidably sleeved with the stand pipe 12, and a transmission structure is arranged between the drive pipe 11 and the stand pipe 12. The toothed assembly further comprises a drive motor 13 installed on the movable seat 8, a first gear 14 fixed on the output shaft of the drive motor 13, and a second gear 15 fixed on the drive pipe 11, and the first gear 14 is engaged with the second gear 15. The transmission structure comprises two strip-shaped protrusions 1201 arranged on the outer wall of the stand pipe 12 and two strip-shaped grooves 1101 arranged on the inner wall of the drive pipe 11, the strip-shaped grooves 1101 are matched with the strip-shaped protrusions 1201, and the strip-shaped grooves 1101 and the strip-shaped protrusions 1201 are parallel to the central axes of the drive pipe 11 and the stand pipe 12.

[0051] As shown in the attached Figure 6 The first compression roller 9 and the second compression roller 10 present a "V" type structure. After the first compression roller 9 and the second compression roller 10 work for a period of time, in order to remove dust and foreign matters from the first compression roller 9 and the second compression roller 10 and avoid scratching the label by the dust and foreign matters, the "V" type structure of the first compression roller 9 and the second compression roller 10 needs to be switched to a "I" type structure. Specifically, the drive motor 13 works, the output shaft of the drive motor 13 drives the drive pipe 11 to rotate through the first gear 14 and the second gear 15, and then the drive pipe 11 drives the stand pipe 12 to rotate through the strip-shaped grooves 1101 and the strip-shaped protrusions 1201. Thus, the stand pipe 12 drives the first compression roller 9 to deflect until the first compression roller 9 is deflected from the inclined state to the position perpendicular to the side surface of the cabinet 1. The deflection of the second compression roller 10 is the same.

[0052] It should be noted that the state presented by the first pressure roller 9 and the second pressure roller 10 is switched in cooperation with the movement of the movable seat 8, so that the distance between the two movable seats 8 can be adjusted after the two movable seats 8 are deflected to be perpendicular to the side of the cabinet 1, so that the first pressure roller 9 and the second pressure roller 10 are away from the end of the stand pipe 12.

[0053] Therefore, the first pressure roller 9 and the second pressure roller 10 can present a "V" shape structure and a "I" shape structure. When the label is rolled, the "V" shape structure can expand the label to the outside, so as to effectively promote the overall adhesion of the label to the surface of the goods, avoid the phenomenon that the straight line type rolling method causes the label not to be adhered to the goods, and further causes the sensing element of the automatic production line to fail to smoothly scan the bar code of the label on the goods in the subsequent assembly production, resulting in analysis error, thereby seriously affecting the production efficiency.

[0054] Please refer again to Figure 8 and Figure 9 , the pressure applying mechanism comprises a pneumatic assembly arranged on the cross arm 7, two groups of elastic transmission structures symmetrically arranged on the cross arm 7 are connected to the pneumatic assembly, and each of the two groups of elastic transmission structures is connected to two stand pipes 12 through a group of telescopic arms. The pneumatic assembly comprises two air cylinders 22 fixed on the cross arm 7 and a driving arm 23 fixedly connected to the movable ends of the two air cylinders 22, and the two ends of the driving arm 23 are respectively connected to the two groups of elastic transmission structures. The elastic transmission structure comprises a guide arm 16 slidably arranged on the cross arm 7, a mounting cavity is arranged in the guide arm 16, and a sliding block 19 fixedly connected to the driving arm 23 is slidably arranged in the mounting cavity.

[0055] Among them, the guide arm 16 is connected with the telescopic arm group, and a guide column 17 is further fixed in the mounting cavity, the sliding block 19 is slidably connected with the guide column 17, and the outer periphery of the guide column 17 is further sleeved with a spring 18, one end of the spring 18 is connected with the inner wall of the mounting cavity, and the other end is connected with the sliding block 19.

[0056] The telescopic arm group comprises a first connecting arm 20 fixedly installed on the side of the guide arm 16 away from the driving arm 23 and a second connecting arm 21 slidably sleeved with the first connecting arm 20, and one end of the second connecting arm 21 away from the guide arm 16 is rotatably connected with the stand pipe 12.

[0057] In detail, when working, the movable end of the cylinder 22 is extended, so that the guide arm 16 is driven to slide vertically downward relative to the cross arm 7 through the driving arm 23, and correspondingly, the guide arm 16 drives the riser 12 to slide relative to the driving pipe 11 through the first connecting arm 20 and the second connecting arm 21, the first pressure roller 9 (the second pressure roller 10) moves downward, and after the first pressure roller 9 (the second pressure roller 10) contacts the surface of the goods, with the continuous extension of the movable end of the cylinder 22, the guide arm 16 cannot continue to move downward, and then the sliding block 19 slides relative to the guide arm 16, the spring 18 is compressed, and with the increase of the compression amount of the spring 18, the pressure applied by the first pressure roller 9 (the second pressure roller 10) to the surface of the goods increases.

[0058] It should be pointed out that when switching the presentation state of the first pressure roller 9 and the second pressure roller 10, the opposite movement of the two movable seats 8 needs to be matched, and when the movable seat 8 moves, the first connecting arm 20 and the second connecting arm 21 slide relative to each other, so that the cylinder 22 can maintain effective pressure transmission function to the first pressure roller 9 (the second pressure roller 10) in the case that the first pressure roller 9 (the second pressure roller 10) has displacement change in the length direction of the cross arm 7.

[0059] Please refer again to Figure 11 and Figure 12 , the air guide structure includes a circular table 1001 arranged at the end of the second pressure roller 10 away from the first pressure roller 9, a plurality of air channels 1004 communicating with the second pressure roller 10 are arranged equidistantly on the circular table 1001, a conical protrusion 1002 and an annular part 1003 are further arranged in the second pressure roller 10, a slit penetrating the air channels 1004 is formed between the conical protrusion 1002 and the annular part 1003, and the riser 12 connected with the first pressure roller 9 is further connected with an air pump arranged in the cabinet 1 through a hose 1202.

[0060] When the first compression roller 9 and the second compression roller 10 present a "V" shape structure and work for a certain time, it is necessary to clean the possible dust foreign matters on the two, specifically, the first compression roller 9 and the second compression roller 10 are switched to a "one" shape structure, then the air pump in the cabinet 1 is started, air is pumped into the cylindrical cavity formed by the first compression roller 9 and the second compression roller 10 through the hose 1202 and the vertical pipe 12, the gas is evenly divided along the circumference by the conical protrusion 1002, enters the air duct 1004 through the gap between the conical protrusion 1002 and the annular part 1003, and is finally blown out along the axial direction of the "one" shape structure, so that a plurality of axial air flow beams are formed on the outer periphery of the "one" shape structure, which can effectively blow off the dust foreign matters on the outer wall of the first compression roller 9 and the second compression roller 10, avoid scratching the label during subsequent roller pressing, ensure that the label information can be effectively recognized during subsequent processing, and provide effective protection for production efficiency.

[0061] As another embodiment of the present application, an automatic printing and labeling machine is also provided, and a method for roller pressing and sticking a label is also provided, when roller pressing, the first compression roller 9 and the second compression roller 10 present a "V" shape structure, the pressing mechanism provides pressure to the first compression roller 9 and the second compression roller 10, so that the first compression roller 9 and the second compression roller 10 act on the surface of the goods and make the label stretch outward.

[0062] When the first compression roller 9 and the second compression roller 10 present a "one" shape structure, air is pumped into the first compression roller 9 and the second compression roller 10, the gas passes through the air guide structure, and a plurality of axial air flow beams are formed on the outer periphery of the "one" shape structure, so as to blow off the dust foreign matters on the outer wall of the first compression roller 9 and the second compression roller 10.

[0063] It is obvious for those skilled in the art that the present application is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0064] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A roll-on automatic printing and labeling machine, comprising a machine box, a roll-on module being arranged on the side of the machine box; characterized in that The roll-on module comprises: a cross arm fixed to the side of the machine box; two movable seats movably arranged on the cross arm and capable of moving towards each other along the length direction of the cross arm, a first roller and a second roller being hollowed in the two movable seats respectively through a set of power mechanisms, the first roller and the second roller being driven by the power mechanisms to perform a deflection action so as to form a "V" shape structure and a "I" shape structure respectively; when the first roller and the second roller present the "V" shape structure, the goods with labels past the "V" shape structure along the goods conveying direction, a pressing mechanism arranged on the cross arm can press the labels on the goods, when the first roller and the second roller present the "I" shape structure, the air guide structure away from the one end of the first roller can blow air to the axial direction of the "I" shape structure; the power mechanism comprises a stand pipe arranged on the movable seat, the stand pipe is communicated with the end of the first roller, and the stand pipe can be driven by the gear assembly arranged on the movable seat to drive the first roller to perform the deflection action, the stand pipe is also connected with the pressing mechanism, and the pressing mechanism can drive the stand pipe to move along the vertical direction relative to the movable seat.

2. A roll and stick type automatic printing and labeling machine according to claim 1, characterized in that, the gear assembly comprises a drive pipe rotatably installed on the movable seat, the drive pipe is slidably sleeved with the stand pipe, and a transmission structure is arranged between the drive pipe and the stand pipe, the gear assembly further comprises a drive motor installed on the movable seat, a first gear fixed to the output shaft of the drive motor, and a second gear fixed to the drive pipe, and the first gear is engaged with the second gear.

3. A roll and stick type automatic printing and labeling machine according to claim 2, characterized in that, the transmission structure comprises two strip-shaped protrusions arranged on the outer wall of the stand pipe and two strip-shaped grooves arranged on the inner wall of the drive pipe, the strip-shaped grooves are matched with the strip-shaped protrusions, and the strip-shaped grooves and the strip-shaped protrusions are parallel to the central axis of the drive pipe and the stand pipe.

4. A roll and stick type automatic printing and labeling machine according to claim 1, characterized in that, the pressing mechanism comprises a pneumatic assembly arranged on the cross arm, the pneumatic assembly is connected with two sets of elastic transmission structures symmetrically arranged on the cross arm, and each set of the elastic transmission structure is connected with two stand pipes through a set of telescopic arms.

5. A roll and stick type automatic printing and labeling machine according to claim 4, characterized in that, the pneumatic assembly comprises two air cylinders fixed to the cross arm and a drive arm fixedly connected with the movable ends of the two air cylinders, and the two ends of the drive arm are connected with two sets of the elastic transmission structures respectively.

6. A roll and stick type automatic printing and labeling machine according to claim 5, characterized in that, the elastic transmission structure comprises a guide arm slidably arranged on the cross arm, the guide arm is internally provided with an assembly cavity, and a sliding block fixedly connected with the drive arm is slidably arranged in the assembly cavity. wherein, the guide arm is connected with the telescopic arm group, a guide column is further fixed in the assembly cavity, the sliding block is slidably connected with the guide column, the outer periphery of the guide column is further sleeved with a spring, one end of the spring is connected with the inner wall of the assembly cavity, and the other end of the spring is connected with the sliding block.

7. A roll-on thimble labelling machine according to claim 6 wherein, The telescopic arm group comprises a first connecting arm fixedly installed on the guide arm away from the driving arm and a second connecting arm slidably sleeved with the first connecting arm, and an end of the second connecting arm away from the guide arm is rotationally connected with the vertical pipe.

8. A roll and stick type automatic printing and labeling machine according to claim 1, characterized in that, The air guide structure comprises a circular truncated cone arranged at an end of the second compression roller away from the first compression roller, a plurality of air channels communicating with the second compression roller are equidistantly arranged on the circular truncated cone, a conical protrusion and an annular part are further arranged in the second compression roller, a slit penetrating the air channels is formed between the conical protrusion and the annular part, and the vertical pipe connected with the first compression roller is further connected with an air pump arranged in the case through a hose.

9. A method of roll-on labelling by an automatic printing labelling machine, using an automatic printing labelling machine of the roll-on labelling type according to any one of claims 1 to 8, characterised in that, When the first compression roller and the second compression roller present a "V" shape structure, the pressing mechanism provides pressure to the first compression roller and the second compression roller, so that the first compression roller and the second compression roller act on the surface of the goods, and the label is stretched outward. When the first compression roller and the second compression roller present a "V" shape structure, the pressing mechanism provides pressure to the first compression roller and the second compression roller, so that the first compression roller and the second compression roller act on the surface of the goods, and the label is stretched outward.

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