Buffer mechanism of labeling machine and labeling machine

Abstract

The application discloses a buffering mechanism of a labeling machine and the labeling machine. The buffering mechanism comprises a fixed roller, a first telescopic piece, a second telescopic piece and a floating assembly. The fixed roller and the floating assembly are distributed at intervals in a first direction, and the fixed roller is close to the labeling mechanism. The first telescopic piece and the second telescopic piece are at intervals and parallel. The telescopic part of the first telescopic piece and the telescopic part of the second telescopic piece can be telescoped in the first direction, and the telescopic part of the first telescopic piece is close to the telescopic part of the second telescopic piece. The telescopic part of the first telescopic piece is connected with the floating assembly through a first connecting piece. The floating assembly comprises a first floating roller and a second floating roller which are arranged on the first connecting piece. The label tape on the labeling mechanism is sequentially wound around the first floating roller, the fixed roller, the floating roller and the labeling mechanism. The telescopic part of the second telescopic piece is connected with the main body of the first telescopic piece. The buffering mechanism has a large tension adjustment range for the label tape and a quick response.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of labeling equipment, in particular to a buffering mechanism of a labeling machine and a labeling machine comprising the buffering mechanism. BACKGROUND

[0002] The adhesive labeling machine usually comprises a labeling mechanism, a buffering mechanism and a labeling roll mechanism, the buffering mechanism is arranged between the labeling mechanism and the labeling roll mechanism, the labeling roll mechanism is wound with a label tape, the labeling mechanism can pull the label tape and paste the label tape on the surface of the product to be labeled, and the buffering mechanism is used for buffering the tension of the label tape between the labeling mechanism and the labeling roll mechanism.

[0003] The buffering mechanism in the prior art is usually a component capable of blowing compressed gas, and the tension of the label tape is adjusted by the compressed gas, however, the buffering mechanism has a small tension adjustment range of the label tape and a slow response speed, and cannot be used in a high-speed labeling machine. SUMMARY

[0004] The buffering mechanism and the labeling machine have a large tension adjustment range of the label tape and a fast response speed.

[0005] To achieve the above purpose, the following technical solutions are adopted in the present application:

[0006] The buffering mechanism of the labeling machine is arranged between the labeling mechanism and the labeling roll mechanism of the labeling machine, and characterized in that the buffering mechanism comprises a fixed roller, a first telescopic piece, a second telescopic piece and a floating assembly, the fixed roller and the floating assembly are spaced apart in a first direction, and the fixed roller is close to the labeling mechanism, the first telescopic piece and the second telescopic piece are spaced apart and parallel, the telescopic part of the first telescopic piece and the telescopic part of the second telescopic piece can be telescoped in the first direction, and the telescopic part of the first telescopic piece is close to the telescopic part of the second telescopic piece, the telescopic part of the first telescopic piece is connected with the floating assembly through a first connecting piece, the floating assembly comprises a first floating roller and a second floating roller which are arranged on the first connecting piece, the label tape on the labeling roll mechanism is wound around the first floating roller, the fixed roller, the floating roller and the labeling mechanism in sequence, and the telescopic part of the second telescopic piece is connected with the main body of the first telescopic piece.

[0007] As a preferred solution of the buffering mechanism of the labeling machine, the telescopic part of the first telescopic piece is connected with the main body of the second telescopic piece through a second connecting piece.

[0008] As a preferred solution of the buffering mechanism of the labeling machine, a slide rail is further included, a length of the slide rail extends along the first direction, the first connecting piece is slidably connected with the slide rail through a first slide block, and the second connecting piece is slidably connected with the slide rail through a second slide block.

[0009] As a preferred solution of the buffering mechanism of the labeling machine, a fixing plate is further included, and the slide rail is connected with the fixing plate.

[0010] As a preferred solution of the buffering mechanism of the labeling machine, the first connecting piece includes a first connecting seat, a second connecting seat and an elastic piece, the first floating roller is connected with the first connecting seat, the second connecting seat includes a mounting block movably connected with the first connecting seat, the mounting block is located on a side of the first connecting seat close to the fixed roller, the second floating roller is connected with the mounting block, the first connecting seat is connected with the slide rail through the first slide block, a telescopic part of the first telescopic piece is connected with the first connecting seat, and opposite ends of the elastic piece are respectively connected with the first connecting seat and the mounting block, and the elastic piece always has a tendency to drive the mounting block to be close to the first connecting seat.

[0011] As a preferred solution of the buffering mechanism of the labeling machine, a guide rod is protrusively arranged on a side of the mounting block close to the first connecting seat, the first connecting seat is provided with a guide sliding hole, the guide sliding hole penetrates through the first connecting seat and is located on opposite sides of the first direction, and the guide rod is arranged in the guide sliding hole.

[0012] As a preferred solution of the buffering mechanism of the labeling machine, an end of the guide rod away from the mounting block protrudes outside the first connecting seat, and the end of the guide rod away from the mounting block is provided with a limiting block.

[0013] As a preferred solution of the buffering mechanism of the labeling machine, the elastic piece is a tension spring, a first protruding part is arranged on the mounting block, a second protruding part is arranged on the first connecting seat, and opposite ends of the tension spring are respectively connected with the first protruding part and the second protruding part.

[0014] As a preferred solution of the buffering mechanism of the labeling machine, a sensing assembly is further included, the sensing assembly includes a sensor, a first sensing piece and a second sensing piece, the first sensing piece and the second sensing piece are spaced apart along the first direction, the first sensing piece is away from the fixed roller, the second sensing piece is close to the fixed roller, the sensor is arranged on the first connecting seat, and the sensor is located between the first sensing piece and the second sensing piece, when the sensor moves to a sensing range of the first sensing piece, a telescopic part of the first telescopic piece stops elongation, and when the sensor moves to a sensing range of the second sensing piece, a telescopic part of the second telescopic piece stops elongation.

[0015] In another aspect, a labeling machine is provided, comprising a labeling mechanism and a label winding mechanism, and further comprising the buffer mechanism of the labeling machine as described above, which is arranged between the labeling mechanism and the label winding mechanism.

[0016] The beneficial effects of the present application are as follows: when the telescopic part of the second telescopic member is in the contracted state, the extension of the telescopic part of the first telescopic member can drive the first floating roller and the second floating roller to move away from the fixed roller, and as the tension of the label tape between the fixed roller and the floating assembly increases, the label tape on the label winding mechanism can be pulled out by a certain length; when the telescopic part of the first telescopic member is in the contracted state, the extension of the telescopic part of the second telescopic member can drive the first floating roller and the second floating roller to move close to the fixed roller, thereby reducing the tension of the label tape between the fixed roller and the floating assembly, so that the label tape can be effectively buffered between the labeling mechanism and the label winding mechanism, preventing the labeling mechanism from breaking the label tape. The buffer mechanism of this structure effectively increases the range of movement of the first floating roller and the second floating roller in the first direction through the cooperation of the first telescopic member and the second telescopic member, thereby expanding the tension adjustment range of the label tape. Moreover, the telescopic members drive the floating rollers to move, which can quickly adjust the tension of the label tape, improve the response speed of the buffer mechanism, and enable the buffer mechanism to be used in medium- and high-speed labeling machines. In addition, the first floating roller and the second floating roller are bidirectionally moved through the first telescopic member and the second telescopic member, which can shorten the overall length of the buffer mechanism and prevent the length of the buffer mechanism from being too long to interfere with other components of the labeling machine. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 The label tape, label winding mechanism, buffer mechanism, and labeling mechanism of the embodiment of the present application are connected.

[0019] Figure 2 The buffer mechanism of the labeling machine of the embodiment of the present application is shown in the structure diagram of one angle.

[0020] Figure 3 For Figure 2 The enlarged view of point A in the middle.

[0021] Figure 4 The buffer mechanism of the labeling machine of the embodiment of the present application is shown in the structure diagram of another angle.

[0022] Figure 5 The structure diagram of the fixed roller, the first floating roller, and the second floating roller on the fixed plate of the embodiment of the present application is shown.

[0023] In the figure:

[0024] 100, buffer mechanism; 200, label winding mechanism; 300, labeling mechanism; 400, label tape;

[0025] 1, fixed roller; 2, floating assembly; 201, first floating roller; 202, second floating roller; 3, first telescopic piece; 4, second telescopic piece; 5, first connecting piece; 501, first connecting seat; 5011, second protruding part; 5012, recessed part; 502, second connecting seat; 5021, mounting block; 50211, first protruding part; 5022, guide rod; 5023, limiting block; 6, second connecting piece; 7, sliding rail; 8, fixed plate; 801, second avoiding hole; 802, third avoiding hole; 803, first side surface; 804, second side surface; 9, induction assembly; 901, first induction piece; 902, second induction piece; 903, inductor; 10, fixing frame; 11, first sliding block; 12, second sliding block; 13, first protective pad; 14, second protective pad; 15, first connecting block; 16, second connecting block; 17, first connecting plate; 18, second connecting plate. DETAILED DESCRIPTION

[0026] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present application will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not 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.

[0027] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] As shown in Figures 1 to 5 The present application provides a labeling machine and a buffer mechanism 100 (hereinafter referred to as buffer mechanism 100) of the labeling machine. The labeling machine comprises a labeling mechanism 300, a buffer mechanism 100 and a label winding mechanism 200, the buffer mechanism 100 is arranged between the labeling mechanism 300 and the label winding mechanism 200, the label winding mechanism 200 winds a label tape 400, the label tape 400 of the label winding mechanism 200 is connected with the labeling mechanism 300 after passing through the buffer mechanism 100, and the labeling mechanism 300 can pull out the label tape 400 and paste the label on the product to be labeled.

[0029] The buffer mechanism 100 comprises a fixed roller 1, a first telescopic piece 3, a second telescopic piece 4 and a floating assembly 2. The fixed roller 1 and the floating assembly 2 are spaced apart in a first direction (i.e. the X direction in the figure) and the fixed roller 1 is close to the labeling mechanism 300. Specifically, the first telescopic piece 3 and the second telescopic piece 4 each comprise a main body and a telescopic part connected to the main body, and the telescopic part is telescopic relative to the main body. The first telescopic piece 3 and the second telescopic piece 4 are spaced apart and parallel, the telescopic part of the first telescopic piece 3 and the telescopic part of the second telescopic piece 4 are each telescopic in the first direction, the telescopic part of the first telescopic piece 3 is close to the telescopic part of the second telescopic piece 4, the main body of the first telescopic piece 3 is away from the main body of the second telescopic piece 4, and the telescopic part of the first telescopic piece 3 is connected to the floating assembly 2 through a first connecting piece 5. The floating assembly 2 comprises a first floating roller 201 and a second floating roller 202 which are both arranged on the first connecting piece 5, the first floating roller 201 and the second floating roller 202 are spaced apart and parallel, and the first floating roller 201 and the second floating roller 202 are each rotatable about its own axis. The label tape 400 on the label winding mechanism 200 is sequentially wound around the first floating roller 201, the fixed roller 1 and the second floating roller 202 and then connected to the labeling mechanism 300, and the telescopic part of the second telescopic piece 4 is connected to the main body of the first telescopic piece 3.

[0030] The telescopic part of the first telescopic member 3 is connected with the floating assembly 2 through the first connecting member 5, and the first floating roller 201 and the second floating roller 202 in the floating assembly 2 are both arranged on the first connecting member 5, and the telescopic part of the first telescopic member can drive the first floating roller 201 and the second floating roller 202 to reciprocate in the first direction, and the telescopic part of the second telescopic member 4 is connected with the main body of the first telescopic member 3, so that the telescopic part of the second telescopic member 4 can drive the first telescopic member 3, the first floating roller 201 and the second floating roller 202 to reciprocate in the first direction. When the telescopic part of the second telescopic member 4 is in the contracted state, the elongation of the telescopic part of the first telescopic member 3 can drive the first floating roller 201 and the second floating roller 202 to move away from the fixed roller 1, and as the tension of the label tape 400 between the fixed roller 1 and the floating assembly 2 increases, the label tape 400 on the label winding mechanism 200 can be pulled out by a certain length; when the telescopic part of the first telescopic member 3 is in the contracted state, the elongation of the telescopic part of the second telescopic member 4 can drive the first floating roller 201 and the second floating roller 202 to move close to the fixed roller 1, so as to reduce the tension of the label tape 400 between the fixed roller 1 and the floating assembly 2, so that the label tape 400 can be effectively buffered between the labeling mechanism 300 and the label winding mechanism 200, and the labeling mechanism 300 can prevent the label tape 400 from being pulled off. The buffering mechanism 100 with the above structure can effectively increase the moving range of the first floating roller 201 and the second floating roller 202 in the first direction through the cooperation of the first telescopic member 3 and the second telescopic member 4, thereby expanding the tension adjustment range of the label tape 400, and the floating roller can be driven to move through the telescopic member, so that the tension of the label tape 400 can be quickly adjusted, the response speed of the buffering mechanism 100 is improved, and the buffering mechanism 100 can be used in a labeling machine at medium and high speeds. In addition, the first floating roller 201 and the second floating roller 202 can be bidirectionally moved through the first telescopic member 3 and the second telescopic member 4, so that the overall length of the buffering mechanism 100 can be shortened, and the length of the buffering mechanism 100 can be prevented from being too long to interfere with other parts of the labeling machine.

[0031] The label tape 400 in the embodiment is an adhesive label tape 400, and one side of the adhesive label tape 400 is attached with a backing paper. Before the labeling mechanism 300 attaches the label tape 400 to a product, the backing paper on the label tape 400 needs to be removed. The removal of the backing paper on the label tape 400 is a prior art, and will not be described herein.

[0032] In the embodiment, the first telescopic member 3 and the second telescopic member 4 are both telescopic rods. Specifically, the telescopic cylinder can be a telescopic gas rod or a telescopic hydraulic rod. In other embodiments, the first telescopic member 3 and the second telescopic member 4 can both be gas spring boxes, or one of the first telescopic member 3 and the second telescopic member 4 is a telescopic rod, and the other is a gas spring box.

[0033] The telescopic part of the first telescopic member 3 is connected to the main body of the second telescopic member 4 through the second connecting member 6, so as to connect the telescopic part of the first telescopic member 3 and the main body of the second telescopic member 4 together.

[0034] Specifically, the main body of the first telescopic member 3 is provided with a first connecting block 15, and the telescopic part of the second telescopic member 4 is provided with a first connecting plate 17, and the first connecting plate 17 and the first connecting block 15 are connected with the first connecting member 5 respectively.

[0035] Referring to Figures 2 to 4 The buffer mechanism 100 further comprises a slide rail 7, the length of the slide rail 7 extends along the first direction, the first connecting member 5 is connected with the slide rail 7 through a first slide block 11, and the second connecting member 6 is connected with the slide rail 7 through a second slide block 12. The slide rail 7 mainly provides a guide for the movement of the first floating roller 201 and the second floating roller, so that the first floating roller 201 and the second floating roller 202 move smoothly. In this example, one end of the fixed roller 1 is fixed on the slide rail 7.

[0036] In this embodiment, the buffer mechanism 100 further comprises a fixed plate 8, the slide rail 7 is connected with the fixed plate 8 through fasteners (such as screws), and the fixed plate 8 provides support and mounting for the slide rail 7, so as to facilitate installation.

[0037] Optionally, the fixed plate 8 has a first side surface 803 and a second side surface 804 opposite to the first side surface 803, the fixed plate 8 is provided with a first avoiding hole (not labeled in the figure) penetrating through the first side surface 803 and the second side surface 804, the slide rail 7 is connected with the first side surface 803, one end of the fixed roller 1 is connected with the slide rail 7, and the other end protrudes from the second side surface 804 through the first avoiding hole.

[0038] In this example, the first connecting member 5 and the second connecting member 6 are located on the first side surface 803 of the fixed plate 8, the fixed plate 8 is provided with a second avoiding hole 801 and a third avoiding hole 802 penetrating through the first side surface 803 and the second side surface 804 respectively, the second avoiding hole 801 and the third avoiding hole 802 are both long holes, the length of the long hole extends along the first direction, one end of the first floating roller 201 away from the first connecting member 5 protrudes from the second side surface 804 through the second avoiding hole 801, and one end of the second floating roller 202 away from the first connecting member 5 protrudes from the second side surface 804 through the third avoiding hole 802.

[0039] Specifically, the main body of the second telescopic member 4 is provided with a second connecting block 16, and the second connecting block 16 is connected with the fixed plate 8 through fasteners (such as screws, etc.), so as to fix the position of the second telescopic member 4.

[0040] Preferably, the first connecting piece 5 comprises a first connecting seat 501, a second connecting seat 502 and an elastic piece (not shown in the figure), the first floating roller 201 is connected with the first connecting seat 501, the second connecting seat 502 comprises a mounting block 5021 movably connected with the first connecting seat 501, the mounting block 5021 is located at the side of the first connecting seat 501 close to the fixed roller 1, the second floating roller 202 is connected with the mounting block 5021, and the first connecting seat 501 is connected with the slide rail 7 through the first sliding block 11. In order to make the structure of the buffering mechanism 100 more compact, the side of the first connecting seat 501 close to the slide rail 7 is recessed with a recessed part 5012, and the first sliding block 11 is mounted in the recessed part 5012. The telescopic part of the first telescopic piece 3 is connected with the first connecting seat 501. Specifically, the telescopic part of the first telescopic piece 3 is provided with a second connecting plate 18, and the second connecting plate 18 is connected with the first connecting seat 501. The opposite ends of the elastic piece are connected with the first connecting seat 501 and the mounting block 5021 respectively, and the elastic piece 503 always has a tendency to drive the mounting block 5021 to be close to the mounting block 5021. It can be understood that the labeling mechanism 300 pulls the label belt 400 by rotating the servo motor, and stops for a moment when pulling out a label each time. The time of each pulling is 0.2-0.3s, and the length of the label belt 400 advancing each time is 50mm. Since the label advancing speed is too fast, the label belt 400 cannot be tightly attached to the floating roller, resulting in that the label belt 400 is deviated on the floating roller. In the embodiment, the mounting seat is movably connected with the first connecting seat 501 through the elastic piece 503, and the elastic piece always has a tendency to drive the mounting block 5021 to be close to the first connecting seat 501. In this way, the second floating roller 202 on the mounting block 5021 always has a tendency to be away from the fixed roller 1. When the labeling mechanism 300 pulls the label belt 400, the second floating roller 202 slows down the advancing speed of the label belt 400 by the traction force of the elastic piece, which is beneficial to tightly attach the label belt 400 to the surfaces of the first floating roller 201 and the second floating roller 202, and avoids the deviation of the label belt 400.

[0041] Further, referring to Figure 3 and Figure 4 , the side of the mounting block 5021 close to the first connecting seat 501 is protrudingly provided with a guide rod 5022, the first connecting seat 501 is provided with a guide sliding hole, the guide sliding hole penetrates through the first connecting seat 501 and is located at opposite sides in the first direction, and the guide rod 5022 is arranged in the guide sliding hole. The guide rod 5022 can slide in the guide sliding hole, the movement of the mounting block 5021 is smooth through the cooperation of the guide rod 5022 and the guide sliding hole, and in addition, the mounting block 5021 can be supported by the first connecting seat 501 through the guide rod 5022 arranged in the guide sliding hole.

[0042] Preferably, the guide rod 5022 protrudes outside the first connecting seat 501 at the end away from the mounting block 5021, and the end of the guide rod 5022 away from the mounting block 5021 is provided with a limiting block 5023 for preventing the guide rod 5022 from falling off the first connecting seat 501.

[0043] It can be understood that, with reference to Figure 3 , the opposite sides of the first connecting seat 501 in the first direction will collide with the mounting block 5021 when the mounting block 5021 moves, causing damage to the mounting block 5021, the first connecting seat 501 and the limiting block 5023. To solve this problem, in the present embodiment, a first protective pad 13 is arranged between the mounting block 5021 and the first connecting seat 501, and a second protective pad 14 is arranged between the limiting block 5023 and the first connecting seat 501, and the first protective pad 13 and the second protective pad 14 are both made of elastic material. Through the protective pad, direct collision between the second connecting seat 502 and the mounting block 5021 and between the second connecting seat 502 and the limiting block 5023 can be avoided, and the protective pad provides a buffering effect to prevent the impact force from damaging the mounting block 5021, the second connecting seat 502 and the limiting block 5023.

[0044] In the present example, the first protective pad 13 is installed on the side of the mounting block 5021 facing the first connecting seat 501, and the second protective pad 14 is installed on the side of the limiting block 5023 facing the first connecting seat 501.

[0045] In another example, the first protective pad 13 is installed on the side of the mounting block 5021 facing the first connecting seat 501, and the second protective pad 14 is installed on the side of the first connecting seat 501 facing the first connecting seat 501.

[0046] In still another example, the first protective pad 13 is installed on the side of the first connecting seat 501 facing the mounting block 5021, and the second protective pad 14 is installed on the side of the first connecting seat 501 facing the limiting block 5023.

[0047] In yet another example, the first protective pad 13 has at least two, and the first protective pad 13 is installed on both the mounting block 5021 and the first connecting seat 501, and the second protective pad 14 has at least two, and the second protective pad 14 is installed on both the first connecting seat 501 and the limiting block 5023.

[0048] With reference to Figure 3 , the elastic member is preferably a tension spring. The mounting block 5021 is provided with a first protrusion 50211, the first connecting seat 501 is provided with a second protrusion 5011, and the opposite ends of the tension spring are connected with the first protrusion 50211 and the second protrusion 5011 respectively, and the first protrusion 50211 and the second protrusion 5011 provide connection and fixation for the elastic member.

[0049] With reference toFigures 2 to 4 The buffering mechanism 100 of the labeling machine further comprises a sensing assembly 9, and the sensing assembly 9 comprises a sensor 903, a first sensing member 901 and a second sensing member 902. The first sensing member 901 and the second sensing member 902 are spaced apart along the first direction, and the first sensing member 901 is away from the fixed roller 1, and the second sensing member 902 is close to the fixed roller 1. The sensor 903 is arranged on the first connecting seat 501, and the sensor 903 is located between the first sensing member 901 and the second sensing member 902. The sensor 903 moves with the first connecting seat 501. When the sensor 903 moves to the sensing range of the first sensing member 901, the extension part of the first telescopic member 3 stops extending. When the sensor 903 moves to the sensing range of the second sensing member 902, the extension part of the second telescopic member 4 stops extending. In this way, the first telescopic member 3 and the second telescopic member 4 are limited to extend within a certain range through the cooperation of the first sensing member 901, the second sensing member 902 and the sensor 903, so as to limit the first floating roller 201 and the second floating roller 202 to move within a certain range.

[0050] Specifically, the buffering mechanism 100 further comprises a fixed frame 10, and the fixed frame 10 is parallel to and spaced apart from the slide rail 7. The first sensing member 901 and the second sensing member 902 are respectively arranged on the fixed frame 10, and the fixed frame 10 provides fixing and supporting for the first sensing member 901 and the second sensing member 902.

[0051] In the labeling machine, the distance of the first floating roller 201 and the second floating roller 202 moving in the first direction is effectively increased through the cooperation of the first telescopic member 3 and the second telescopic member 4 in the buffering mechanism 100, so as to expand the tension adjustment range of the label tape 400. The floating roller is driven to move by the telescopic member, so that the tension of the label tape 400 can be quickly adjusted. In addition, the first floating roller 201 and the second floating roller 202 are bidirectionally moved through the first telescopic member 3 and the second telescopic member 4, so that the overall length of the buffering mechanism 100 can be shortened, the length of the buffering mechanism 100 is prevented from being too long to interfere with other components of the labeling machine, and the overall size of the labeling machine is beneficially reduced.

[0052] In the description herein, it should be understood that the terms "upper", "lower", "left", "right", and the like orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.

[0053] In the description of the specification, the description of the terms "an embodiment", "an example" and the like is intended to refer to a specific feature, structure, material or characteristic under description of the embodiment or example. In the specification, the illustrative representation of the above terms does not necessarily refer to the same embodiment or example.

[0054] In addition, it should be understood that, although the 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, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

[0055] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for the purpose of explaining the principles of the present application, and cannot be interpreted in any way as a limitation on the scope of protection of the present application. Based on the explanation here, those skilled in the art can think of other specific embodiments of the present application without creative labor, and these ways will fall within the scope of protection of the present application.

Claims

1. A buffer mechanism of a labeling machine, provided between a labeling mechanism and a label winding mechanism of the labeling machine, characterized in that, The buffer mechanism comprises fixed rollers, first and second telescopic members and a floating assembly, the fixed rollers and the floating assembly are spaced apart in a first direction, and the fixed rollers are close to the labeling mechanism, the first and second telescopic members are spaced apart and parallel, the telescopic parts of the first and second telescopic members are capable of telescoping in the first direction, the telescopic parts of the first and second telescopic members are close to each other, the main bodies of the first and second telescopic members are away from each other, the telescopic part of the first telescopic member is connected with the floating assembly through a first connecting member, the floating assembly comprises first and second floating rollers arranged on the first connecting member, and the label tape on the labeling mechanism is sequentially wound around the first floating roller, the fixed roller, the second floating roller and then connected with the labeling mechanism, and the telescopic part of the second telescopic member is connected with the main body of the first telescopic member.

2. The buffer mechanism of a labelling machine according to claim 1, characterised in that, The telescopic part of the first telescopic member is connected with the main body of the second telescopic member through a second connecting member.

3. The buffer mechanism of a labelling machine according to claim 2, characterised in that, Further comprising a slide rail, the length of the slide rail extends along the first direction, the first connecting member is slidingly connected with the slide rail through a first sliding block, and the second connecting member is slidingly connected with the slide rail through a second sliding block.

4. The buffer mechanism of a labelling machine according to claim 3, characterised in that, Further comprising a fixed plate, the slide rail is connected with the fixed plate.

5. The buffer mechanism of a labelling machine according to claim 3 or 4, characterised in that, The first connecting member comprises a first connecting seat, a second connecting seat and an elastic member, the first floating roller is connected with the first connecting seat, the second connecting seat comprises a mounting block movably connected with the first connecting seat, the mounting block is located on the side of the first connecting seat close to the fixed roller, the second floating roller is connected with the mounting block, the first connecting seat is connected with the slide rail through the first sliding block, the telescopic part of the first telescopic member is connected with the first connecting seat, the opposite ends of the elastic member are connected with the first connecting seat and the mounting block respectively, and the elastic member always has a tendency to drive the mounting block close to the first connecting seat.

6. The buffer mechanism of a labelling machine according to claim 5, characterised in that, The side of the mounting block close to the first connecting seat is protrusively provided with a guide rod, the first connecting seat is provided with a guide sliding hole, the guide sliding hole penetrates through the first connecting seat and is located on opposite sides of the first direction, and the guide rod is arranged in the guide sliding hole.

7. The buffer mechanism of a labelling machine according to claim 6, characterised in that, The end of the guide rod away from the mounting block protrudes outside the first connecting seat, and the end of the guide rod away from the mounting block is provided with a limiting block.

8. The buffer mechanism of a labelling machine according to claim 5, characterised in that, The elastic member is a tension spring, the mounting block is provided with a first protruding part, the first connecting seat is provided with a second protruding part, and the opposite ends of the tension spring are connected with the first and second protruding parts respectively.

9. The buffer mechanism of a labelling machine according to claim 5, characterised in that, The inductive assembly comprises an inductor, a first inductive element and a second inductive element, the first inductive element and the second inductive element are spaced apart along the first direction, the first inductive element is away from the fixed roller, the second inductive element is close to the fixed roller, the inductor is arranged on the first connecting seat, and the inductor is located between the first inductive element and the second inductive element, when the inductor moves to the inductive range of the first inductive element, the telescopic part of the first telescopic element stops elongation, and when the inductor moves to the inductive range of the second inductive element, the telescopic part of the second telescopic element stops elongation.

10. A labeling machine comprising a labeling mechanism and a label winding mechanism, further comprising the buffer mechanism of any one of claims 1 to 9, and the buffer mechanism is arranged between the labeling mechanism and the label winding mechanism.

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