CN210761645U

CN210761645U - Positioning mechanism for coding bottom of pop can

Info

Publication number: CN210761645U
Application number: CN201921144282.7U
Authority: CN
Inventors: 翟兴
Original assignee: Shenzhen Tianxingcheng Technology Co ltd
Current assignee: Shenzhen Tianxingcheng Technology Co ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-06-16
Anticipated expiration: 2029-07-19

Abstract

The utility model discloses a positioning mechanism is used to easy open can tank bottoms coding, including assembly line conveyer belt, fixture A and with fixture A matched with fixture B, fixture A with fixture B through the mount pad symmetry set up the easy open can that carries out the cooperation to carrying out on the assembly line conveyer belt and carry out the centre gripping location in the both sides of assembly line conveyer belt, this positioning mechanism is used to easy open can tank bottoms coding still includes flexible positioning mechanism, rigid positioning mechanism and inclined plane tooth arch. The utility model discloses: 1. the use effect of preventing the damage of the pop can is achieved by tooth contact positioning and tooth avoiding contact positioning for the pop can. 2. After the flexible guide contact can be realized, the use effect of protecting and positioning the pop-top can by assisting the rigid contact positioning is realized. 3. The purpose of greatly reducing the cost and using the power required by transmission is achieved by avoiding the damage of the pop can and simultaneously utilizing the characteristics that the force transmitted by the assembly line and the pop can have a certain volume.

Description

Positioning mechanism for coding bottom of pop can

Technical Field

The utility model relates to a laser marking field, concretely relates to positioning mechanism is used to easy open can tank bottoms coding.

Background

In the beverage trade of easy open can packing, utilize the thing networking concept of a thing sign indicating number, through cell-phone recognition jar body surface two-dimensional code, realize networking with commodity, and then realize commodity sales promotion, commodity anti-fake discernment, functions such as big data analysis of commodity, the easy open can at first need fix a position the easy open can when coding, among the prior art for the mechanism of easy open can location on the assembly line has following problem when using: 1. because the pop can is generally made of an extremely thin aluminum material with the thickness of 0.8 mm-1.3 mm, the damage is easy to occur, and in the prior art, the use effect that the damage of the pop can is avoided by tooth contact positioning and tooth avoiding contact positioning can not be achieved. 2. After flexible guide contact can not be realized, the use effect of protecting and positioning the pop can by assisting rigid contact positioning is realized. 3. The use effect of greatly reducing the cost and reducing the power required by transmission by using the characteristics that the force transmitted by the assembly line and the zip-top can have a certain volume while avoiding the damage of the zip-top can cannot be achieved.

In order to solve the technical problems, a new technical scheme is especially provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a positioning mechanism is used to easy open can tank bottoms coding to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a positioning mechanism for coding the bottom of a pop can comprises an assembly line conveying belt, a clamping mechanism A and a clamping mechanism B matched with the clamping mechanism A, wherein the assembly line conveying belt is used for conveying pop cans, the clamping mechanism A and the clamping mechanism B are symmetrically arranged on two sides of the assembly line conveying belt through mounting seats and are used for clamping and positioning the pop cans conveyed on the assembly line conveying belt in a matching mode, the positioning mechanism for coding the bottom of the pop can further comprises a flexible positioning mechanism, a rigid positioning mechanism and a bevel tooth bulge, the clamping mechanism A comprises a synchronous belt A, a synchronous wheel A and a synchronous wheel B, the synchronous belt A is rotatably arranged on one side of the assembly line conveying belt through the synchronous wheel A and the synchronous wheel B matched with the synchronous belt A, the synchronous belt A comprises a conveying plane A, the assembly line conveying belt comprises a conveying plane B, the conveying plane A is perpendicular to the conveying plane B, the clamping mechanism B comprises a synchronous belt B, a synchronous wheel C and a synchronous wheel D, the synchronous belt B is arranged on the other side of the assembly line conveying belt in a rotating mode through the synchronous wheel C matched with the synchronous belt B and the synchronous wheel D, the synchronous belt B comprises a conveying plane C, the conveying plane C is perpendicular to the conveying plane B, the synchronous belt A and the synchronous belt B respectively enclose a cavity on the mounting seat, a flexible positioning mechanism and a rigid positioning mechanism are arranged in the cavity, the flexible positioning mechanism comprises a supporting plate, a flexible guide rod A, a spring A, a flexible guide rod B and a spring B, the supporting plate comprises a bottom side A and the side A close to the assembly line conveying belt, the supporting plate is fixedly connected with the mounting seat through the bottom side A, the flexible guide rod A is fixedly connected with the side A of the supporting plate through the two springs A, the flexible guide rod B is fixedly connected with the side A of the supporting seat A through the two springs B, and the side The position of being close to the top side, rigidity positioning mechanism contains deflector and locating lever, and the deflector is 2 locating lever fixed connection backup pads at least through quantity, hold-in range A and hold-in range B contain the lateral surface respectively, evenly distributed has the inclined plane tooth arch on hold-in range A and hold-in range B's the lateral surface, and the inclined plane tooth arch contains respectively with carry plane looks vertically perpendicular A and perpendicular B, form screens chamber A between the perpendicular A of one of them inclined plane tooth arch in two adjacent inclined plane tooth archs and one of them inclined plane tooth arch in two adjacent inclined plane tooth archs that are close to the position of assembly line conveyer belt on the hold-in range A, form screens chamber B between the perpendicular A of one of them inclined plane tooth arch in two adjacent inclined plane tooth archs and one of them inclined plane tooth arch in two adjacent inclined plane tooth archs that are close to the position of assembly line conveyer belt on the hold-in range B, when the clamping cavity A corresponds to the clamping cavity B, the clamping cavity A and the clamping cavity B are combined to form a clamping space of the pop can.

Preferably, the flexible guide rod a and the flexible guide rod B respectively comprise two end portions, and the shortest distance between the two end portions of the flexible guide rod a and the flexible guide rod B and the assembly line conveying belt is greater than the shortest distance between the middle portions of the flexible guide rod a and the flexible guide rod B and the assembly line conveying belt.

Preferably, the axes of the flexible guide rod A and the flexible guide rod B are respectively parallel to the conveying direction of the assembly line conveying belt.

Preferably, the synchronous wheel A, the synchronous wheel B, the synchronous wheel C and the synchronous wheel D are driven to rotate synchronously, so that the synchronous belt A and the synchronous belt B move synchronously.

Preferably, the vertical surfaces a and B are inclined surfaces, respectively.

Preferably, the fixed connection is fixed connection through welding connection, clamping connection and/or bolt connection.

Preferably, the guide plate is closer to the assembly line conveying belt than the flexible guide rods A and B.

Preferably, the guide plate is more than the flexible guide rod A and the flexible guide rod B which are 6 mm-26 mm away from the closest distance of the assembly line conveying belt.

Preferably, the nearest distance from the guide plate on one side of the assembly line conveying belt to the guide plate on the other side of the assembly line conveying belt is larger than the diameter of the pop can plus the thickness of the synchronous belt A and the synchronous belt B by 0.68 mm-1.2 mm.

Compared with the prior art, the beneficial effects of the utility model are that: 1. the use effect of preventing the damage of the pop can is achieved by tooth contact positioning and tooth avoiding contact positioning for the pop can. 2. After the flexible guide contact can be realized, the use effect of protecting and positioning the pop-top can by assisting the rigid contact positioning is realized. 3. The purpose of greatly reducing the cost and using the power required by transmission is achieved by avoiding the damage of the pop can and simultaneously utilizing the characteristics that the force transmitted by the assembly line and the pop can have a certain volume.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view a-a of fig. 1.

Fig. 3 is a schematic structural diagram of fig. 2 when a rigid positioning mechanism is adopted.

Fig. 4 is a schematic structural diagram of the present invention when the rotating shaft and the bearing are used.

Fig. 5 is an enlarged schematic view of a portion a of fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The utility model discloses only use to the scene that is applied to the background art and mentions very much, probably produce other new problems from this because space restriction and utility model people are limited to the first research and development efforts of a technique, are difficult to accomplish once research and development and just form a perfect technical scheme, consequently all can adopt current mode to understand and solve.

Referring to the attached drawings of the specification, the utility model provides a technical scheme: a pop can bottom code assigning device comprises an assembly line conveying belt 1, a clamping mechanism A (not shown in the figure) and a clamping mechanism B (not shown in the figure) matched with the clamping mechanism A, wherein the assembly line conveying belt 1 is used for conveying pop cans, the clamping mechanism A and the clamping mechanism B are symmetrically arranged on two sides of the assembly line conveying belt 1 through a mounting seat 2 and used for matching and clamping and positioning the pop cans conveyed on the assembly line conveying belt 1, the pop can bottom code assigning device also comprises a flexible positioning mechanism, a rigid positioning mechanism and a bevel tooth bulge 3, the clamping mechanism A comprises a synchronous belt A4, a synchronous wheel A5 and a synchronous wheel B6, the synchronous belt A4 is rotatably arranged on one side of the assembly line conveying belt 1 through a synchronous wheel A5 and a synchronous wheel B6 matched with the synchronous belt A4, the synchronous belt A4 comprises a conveying plane A7, the assembly line conveying belt 1 comprises a conveying plane B8, the conveying plane A7 is perpendicular to the conveying plane B8, the clamping mechanism B comprises a synchronous belt B9, a synchronous wheel C10 and a synchronous wheel D11, the synchronous belt B9 is rotatably arranged at the other side of the assembly line conveying belt 1 through the synchronous wheel C10 and the synchronous wheel D11 which are matched with the synchronous belt B9, the synchronous belt B9 comprises a conveying plane C12, the conveying plane C12 is perpendicular to the conveying plane B8, a cavity 13 is respectively defined on the mounting seat 2 by the synchronous belt A4 and the synchronous belt B9, a flexible positioning mechanism and a rigid positioning mechanism are arranged in the cavity 13, the flexible positioning mechanism comprises a supporting plate 14, a flexible guide rod A15, a spring A16, a flexible guide rod B17 and a spring B18, the supporting plate 14 comprises a bottom side A and a side A which is close to the assembly line conveying belt 1, the supporting plate 14 is fixedly connected with the mounting seat 2 through the bottom side A, the flexible guide rod A15 is fixedly connected with the side A of the supporting plate 14 through two, the flexible guide rod B17 is through the spring B18 fixed connection supporting seat A's that is two position that is close to the top side, rigidity positioning mechanism contains deflector 19 and locating lever 20, deflector 19 is through quantity 2 locating lever 20 fixed connection backup pad 14 at least, hold-in range A4 and hold-in range B9 contain the lateral surface respectively, evenly distributed has the inclined plane tooth arch 3 on the lateral surface of hold-in range A4 and hold-in range B9, inclined plane tooth arch 3 contains perpendicular A21 and perpendicular B22 with the conveying plane respectively, form screens chamber A23 between perpendicular B22 of one of two adjacent inclined plane tooth arch 3 in the two adjacent inclined plane tooth arch 3 that are close to the position of assembly line conveyer belt 1 on hold-in range A4 and the perpendicular A21 of another one of two adjacent inclined plane tooth arch 3 in two adjacent inclined plane tooth arch 3, perpendicular B22 and two adjacent two inclined plane tooth arch 3 of two adjacent inclined plane tooth arch 3 that are close to the position of assembly line conveyer belt 1 on hold-in range B9 A clamping cavity B is formed between the vertical surfaces A21 of the other bevel gear protrusion 3 in the bevel gear protrusions 3, and when the clamping cavity A23 corresponds to the clamping cavity B27, the clamping cavity A23 and the clamping cavity B are combined to form a pop can clamping space 24; be used for the cooperation to carry out the fixture A of centre gripping location and with fixture B department to the easy open can of carrying out on assembly line conveyer belt 1 when the tank bottoms has the picture layer through assembly line conveyer belt 1 to the symmetry setting in assembly line conveyer belt 1 both sides, the tank bottoms of easy open can 25 this moment generally towards the top, carry through assembly line conveyer belt 1 and hold-in range A4 and hold-in range B9 on the protruding 3 structures that close to the rack of the protruding formation of bevel gear carry out spacing location to the easy open can.

Preferably, the flexible guide rod a15 and the flexible guide rod B17 respectively comprise two end parts, and the closest distance between the two end parts of the flexible guide rod a15 and the flexible guide rod B17 and the pipeline conveying belt 1 is greater than the closest distance between the middle parts of the flexible guide rod a15 and the flexible guide rod B17 and the pipeline conveying belt 1.

Preferably, the axes of the flexible guide rod A15 and the flexible guide rod B17 are respectively parallel to the conveying direction of the assembly line conveying belt 1; the utility model discloses in the embodiment of extension, can offer respectively on each inclined plane tooth arch 3 and dodge recess 26 for when inclined plane tooth arch 3 received too big extrusion force, dodge out the space of deformation, and then realize that the easy open can receives the extrusion deformation that too vigorously caused.

Preferably, the synchronizing wheel A5, the synchronizing wheel B6, the synchronizing wheel C10 and the synchronizing wheel D11 are driven to rotate synchronously to enable the synchronizing belt A4 and the synchronizing belt B9 to move synchronously, wherein a rotating shaft 28 and a bearing 29 which are matched with the synchronizing wheel A5, the synchronizing wheel B6, the synchronizing wheel C10 and the synchronizing wheel D11 are respectively arranged on the mounting base 2, the bearing 29 is fixedly arranged on the mounting base 2, the synchronizing wheel A5, the synchronizing wheel B6, the synchronizing wheel C10 and the synchronizing wheel D11 are respectively and fixedly connected with the rotating shaft 28, the rotating shaft 28 is rotatably connected with the mounting base 2 through the bearing 29, in this way, when the pop-top can 25 is conveyed by the pipeline conveying belt 1, the conveying force for driving the pop-top can 25 through the pipeline drives the synchronizing belt A4 and the synchronizing belt B9 to rotate by pushing the bevel tooth protrusions 3 on the synchronizing belt A4 and B9, so as to realize the synchronizing wheel A5, B6, C10 and D11 to realize the synchronous belt rotation of the, the purpose of greatly reducing the cost and using the power required by transmission is achieved by avoiding the damage of the pop can and simultaneously utilizing the characteristics that the force transmitted by the assembly line and the pop can have a certain volume.

Preferably, the vertical plane a21 and the vertical plane B22 are inclined planes, respectively; the utility model discloses in, the part that does not mention can all regard as prior art to understand, for example how the assembly line is driven, how to ensure that the easy open can not lead to controlling because of the driving force and rock the not directly relevant part of the technical problem that the toppling etc. and this application background art provided on the assembly line, can all adopt current mode to solve and understand as prior art.

Preferably, the fixed connection is a fixed connection by means of a welded connection, a snap connection and/or a bolted connection.

Preferably, the fastening is arranged fixedly by means of a welded connection, a snap connection and/or a screw connection.

Preferably, the guide plate 19 is located at a greater distance from the line conveyor 1 than the flexible guide bar a15 and the flexible guide bar B17 are located at the closest distance from the line conveyor 1.

Preferably, the closest distance of the guide plate 19 to the line conveyor 1 is greater than the closest distance of the flexible guide rod A15 and the flexible guide rod B17 to the line conveyor 1 by 6 mm-26 mm.

Preferably, the nearest distance from the guide plate 19 at one side of the production line conveying belt 1 to the guide plate 19 at the other side of the production line conveying belt 1 is more than 0.68 mm-1.2 mm of the diameter of the pop can plus the thickness of the synchronous belt A4 and the synchronous belt B9.

When in use: the zip-top can 25 is guided and positioned in advance by the flexible positioning mechanism, and then is positioned by the rigid positioning mechanism, because the nearest distance from the guide plate 19 at one side of the assembly line conveying belt 1 of the rigid positioning mechanism to the guide plate 19 at the other side of the assembly line conveying belt 1 is greater than the zip-top can diameter plus the thickness of the synchronous belt A4 and the synchronous belt B9 by 0.68 mm-1.2 mm, the damage to the zip-top can caused by the possibility is avoided to the maximum extent, and the bevel tooth bulges 3 are uniformly distributed on the outer side surfaces of the synchronous belt A4 and the synchronous belt B9, the bevel tooth bulges 3 comprise a vertical surface A21 and a vertical surface B22 which are respectively vertical to the conveying plane, a clamping cavity A23 is formed between the vertical surface B22 of one of the two adjacent bevel tooth bulges 3 at the position close to the assembly line conveying belt 1 on the synchronous belt A4 and the vertical surface A21 of the other bevel tooth bulge 3 of the two adjacent bevel tooth bulges 3, a clamping cavity B is formed between a vertical plane B22 of one of the two adjacent bevel tooth bulges 3 and a vertical plane A21 of the other one of the two adjacent bevel tooth bulges 3 on the synchronous belt B9, which are close to the position of the assembly line conveying belt 1, when the clamping cavity A23 corresponds to the clamping cavity B, the clamping cavity A23 and the clamping cavity B are combined to form a pop-top can clamping space 24, so that the synchronous belt A4 and the synchronous belt B9 respectively form a rack structure which can carry out belt transmission through the synchronous wheel A5, the synchronous wheel B6, the synchronous wheel C10 and the synchronous wheel D11 through the bevel tooth bulges 3, and then the racks synchronously rotate through the synchronous rotation of the synchronous wheel A5, the synchronous wheel B6, the synchronous wheel C10 and the synchronous wheel D11, thereby realizing the pop-top can tooth transmission, utilizing the characteristic of stable gear transmission, playing a stable transmission effect on the pop-top can, meanwhile, the flexible positioning mechanism and the rigid positioning mechanism are combined, so that the use effect of multi-level and different-degree cooperation position adjustment of the easy-to-pull tank is achieved.

The design to be explained is: the control circuit involved in the present design is a conventional technique for controlling the operation of each component and the corresponding control program. The utility model discloses model and/or size between each part only need mutual adaptation, can realize the utility model discloses a principle can, other not mentioned parts can all regard as prior art to understand. On the basis of the scheme of the utility model, the ordinary technical personnel in the field can make up some deficiencies on the details through logical analysis and/or reasoning, make the technical scheme of the utility model perfect and optimize more. The technical solutions described in the present application are limited to the technical problems to be solved in the background art, and other portions can be implemented in other patent applications by other persons skilled in the art, and the other portions can be implemented in other patent applications, so as to achieve the optimal application effect.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", 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.

Based on the fact that there is no product, only one advantage and no disadvantage, the present invention is only used for specific environments, such as the scenes mentioned in the background, if some users consider the factors of price, inconvenient carrying and the like, the users do not recommend to buy the product, the product is only used for the scenes which need to be mentioned in the background art, and can accept and ignore the customers who use other negative factors, and in view of the fact that no one technology is developed at a time, the technical solutions of the present application are clearly described and fully disclosed only by describing technical solutions adopted for the problems mentioned in the background, other problems which arise therefrom are not within the scope of the claims of the present application and can be perfected again by a person skilled in the art in order to be able to create relatively more sophisticated solutions, all in a way known per se in the art.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a positioning mechanism is used to easy open can tank bottoms coding, include assembly line conveyer belt, fixture A and with fixture A matched with fixture B, the assembly line conveyer belt is used for carrying the easy open can, fixture A with fixture B through mount pad symmetry set up the both sides of assembly line conveyer belt be used for the cooperation to carry out the easy open can that carries on carrying out on the assembly line conveyer belt and carry out centre gripping location, its characterized in that: the positioning mechanism for coding the bottom of the pop can comprises a flexible positioning mechanism, a rigid positioning mechanism and an inclined plane tooth bulge, wherein the clamping mechanism A comprises a synchronous belt A, a synchronous wheel A and a synchronous wheel B, the synchronous belt A is rotatably arranged on one side of the assembly line conveying belt through the synchronous wheel A matched with the synchronous belt A and the synchronous wheel B, the synchronous belt A comprises a conveying plane A, the assembly line conveying belt comprises a conveying plane B, the conveying plane A is vertical to the conveying plane B, the clamping mechanism B comprises a synchronous belt B, a synchronous wheel C and a synchronous wheel D, the synchronous belt B is rotatably arranged on the other side of the assembly line conveying belt through the synchronous wheel C matched with the synchronous belt B and the synchronous wheel D, the synchronous belt B comprises a conveying plane C, the conveying plane C is vertical to the conveying plane B, and the synchronous belt A and the synchronous belt B respectively enclose a cavity on the mounting seat, the flexible positioning mechanism comprises a supporting plate, a flexible guide rod A, a spring A, a flexible guide rod B and a spring B, the supporting plate comprises a bottom side A and a side A close to the assembly line conveying belt, the supporting plate is fixedly connected with an installation seat through the bottom side A, the flexible guide rod A is fixedly connected with the position, close to the bottom side, of the side A of the supporting plate through two springs A, the flexible guide rod B is fixedly connected with the position, close to the top side, of the side A of the supporting seat A through two springs B, the rigid positioning mechanism comprises a guide plate and positioning rods, the guide plate is fixedly connected with the supporting plate through at least 2 positioning rods, the synchronous belt A and the synchronous belt B respectively comprise outer side surfaces, and inclined plane tooth bulges are uniformly distributed on the outer side surfaces of the synchronous belt A and the synchronous belt B, the inclined plane tooth is protruding to contain respectively with conveying plane looks vertically perpendicular A and perpendicular B, form screens chamber A between the bellied perpendicular A of wherein one of them inclined plane tooth in two adjacent inclined plane tooth archs and two adjacent inclined plane tooth archs of being close to the position of assembly line conveyer belt on the hold-in range A, be close to on the hold-in range B one of them inclined plane tooth bellied perpendicular B in two adjacent inclined plane tooth archs and two adjacent inclined plane tooth archs wherein another inclined plane tooth is bellied and form screens chamber B between the bellied perpendicular A, screens chamber A and screens chamber B combination form easy open can screens space when corresponding.

2. The pop can bottom coding positioning mechanism according to claim 1, wherein: the flexible guide rod A and the flexible guide rod B respectively comprise two end parts, and the nearest distance between the two end parts of the flexible guide rod A and the flexible guide rod B and the assembly line conveying belt is greater than the nearest distance between the middle parts of the flexible guide rod A and the flexible guide rod B and the assembly line conveying belt.

3. The pop can bottom coding positioning mechanism according to claim 1, wherein: the axial leads of the flexible guide rod A and the flexible guide rod B are respectively parallel to the conveying direction of the assembly line conveying belt.

4. The pop can bottom coding positioning mechanism according to claim 1, wherein: the synchronous wheel A, the synchronous wheel B, the synchronous wheel C and the synchronous wheel D are driven to rotate synchronously to enable the synchronous belt A and the synchronous belt B to move synchronously.

5. The pop can bottom coding positioning mechanism according to claim 1, wherein: the vertical surface A and the vertical surface B are inclined surfaces respectively.

6. The pop can bottom coding positioning mechanism according to claim 1, wherein: the fixed connection is fixed connection in a welding connection mode, a clamping connection mode and/or a bolt connection mode.

7. The pop can bottom coding positioning mechanism according to claim 1, wherein: the nearest distance between the guide plate and the assembly line conveying belt is greater than the nearest distance between the flexible guide rod A and the flexible guide rod B and the assembly line conveying belt.

8. A positioning mechanism for coding can bottom of pop-top can according to claim 7, characterized in that: the nearest distance between the guide plate and the assembly line conveying belt is 6-26 mm greater than the nearest distance between the flexible guide rod A and the flexible guide rod B and the assembly line conveying belt.

9. The can bottom coding positioning mechanism of claim 8, wherein: the nearest distance from the guide plate on one side of the assembly line conveying belt to the guide plate on the other side of the assembly line conveying belt is larger than the diameter of the pop can plus the thickness of the synchronous belt A and the synchronous belt B by 0.68 mm-1.2 mm.