Conveying device based on label sleeving production

Abstract

The invention discloses a conveying device based on label sleeving production, and relates to the technical field of packaging bottle production, the conveying device comprises a conveying assembly, a bottle seat, a positioning key and a limiting groove, and the conveying assembly comprises a leaf chain; the bottle base is composed of two sets of auxiliary dies with groove cavities, and the two auxiliary dies are symmetrically and fixedly arranged on two chain plates of the leaf chain respectively so that the two auxiliary dies can have a closed mode and an open mode and can be switched between the two modes. The positioning key is arranged on the auxiliary mold at the front edge position in the conveying direction, and one side edge of the positioning key is positioned in the groove cavity; the limiting groove is matched with the convex part of the bottle opening in appearance and is concavely formed in the top of the auxiliary mold. According to the invention, the collaborative design of the plate chain and the symmetrical auxiliary die is adopted, and accurate positioning and automatic blanking of the bottle body are realized by switching the die closing / die opening states. The conveying, positioning and blanking functions are integrated, the positioning precision of a bottle opening is ensured through the matched design of the limiting groove and the positioning key, unpowered automatic blanking is achieved through the inclined die opening mode of the auxiliary die, and the conveying reliability and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of packaging bottle production, in particular to a conveying device in label sleeving production. BACKGROUND

[0002] The label sleeving equipment in the prior art is a packaging machine for sleeving a shrink film label on a bottle or other container. The label sleeving machine generally comprises a label sleeving assembly, a shrinking assembly, and a conveying assembly for conveying the bottle from the label sleeving station to the shrinking station. The working process is as follows: the bottle is conveyed to the label sleeving station by the conveying assembly, the position of the bottle is sensed by a sensor during the conveying process, then the label sleeving assembly performs the steps of label feeding, positioning, cutting, and shooting, so as to accurately sleeve the label on the bottle. Then the bottle at the label sleeving station is conveyed to the shrinking station by the conveying assembly, and the bottle is shrunk to make the label tightly adhere to the surface of the bottle, achieving the effects of beauty and anti-counterfeiting.

[0003] Generally, the conveying assembly in the above-mentioned is usually a combination of a conveying belt and a base. For example, the patent document with the authorization announcement number CN220810110U discloses a horizontal label sleeving machine. The label sleeving machine has a conveying device with a conveying belt that moves in a loop. The upper surface of the conveying belt is uniformly provided with a base. The base is provided with a clamping groove for placing a bottle body. The clamping groove is arc-shaped, and the length of the clamping groove is not greater than the length of the non-packaging area of the bottle body. When the bottle body is placed on the conveying belt by the feeding part, the packaging area and the non-packaging area of the bottle body are located in the clamping groove on the base. When the bottle body is placed on the base, the bottle body is in a horizontal placement state.

[0004] The above-mentioned conveying belt and base are arranged to horizontally place the bottle body, so as to facilitate subsequent horizontal label sleeving processing of the bottle body, and solve the problem of inconvenient or unstable standing of the bottle body. However, the conveying assembly composed of the conveying belt and the base still needs to be additionally provided with a pushing part. The pushing part is used to push the packaging area of the bottle body out of the conveying device, so that the packaging area can be sleeved by the label sleeving part.

[0005] Firstly, the addition of the pushing part increases the running cost of the label sleeving machine, and subsequent maintenance work is also required. Secondly, the sleeving area of the bottle body is generally the entire bottle body excluding the bottle mouth. When the horizontal label sleeving method is applied, the entire bottle body needs to be pushed out of the conveying device. In this state, the overall center of gravity of the bottle body may deviate from the conveying belt, which is easy to shake during operation, affecting the label sleeving effect.

[0006] The statements herein only provide background technology related to the present application, and do not necessarily constitute the prior art.

[0007] Secondly, in order to meet different production needs, manufacturers generally make improvements based on conventional bottles to obtain a new structure of packaging bottles. Figure 1 and Figure 2 It shows a packaging bottle structure after corresponding structural improvement. Figure 1 and Figure 2 Shown from two different perspectives, 101 represents the packaging bottle body, 102 represents the external thread protruding from the bottle mouth, 103 represents the through-slot recessed in the external thread and arranged along the axis of the bottle mouth, 104 represents the annular flange protruding from the bottle mouth, and 105 represents the protrusion provided on the annular flange and extending radially along the bottle mouth. Due to the new bottle structure, a conventional base may not fit the bottle body's shape and cannot be placed on it. Even after placement, due to the changed shape, the outer shape may interfere with the inner cavity of the base, preventing the pusher from pushing the label, resulting in labeling failure.

[0008] To this end, we propose a conveying device based on sleeve label production to solve the above problems. Summary of the Invention

[0009] The purpose of the present invention is to solve the problems in the prior art and to propose a conveying device based on sleeve label production. The device improves the bottle seat on the conveying component so that it can stably support and convey the bottle body, and its split design can also realize automatic dropping of the bottle body.

[0010] In order to solve the above problems, the present invention provides the following technical solutions:

[0011] A conveying device based on sleeve label production, comprising:

[0012] A conveying assembly comprising a plate chain that performs cyclic reciprocating motion;

[0013] The bottle holder is composed of two sets of sub-molds with groove cavities. The two sub-molds are symmetrically fixed on the two chain plates of the plate chain so that the two molds have a closed state and an open state and can switch between the two states.

[0014] A positioning key is provided on the secondary mold at the front edge of the conveying direction, and one side of the positioning key is located in the groove cavity;

[0015] The limiting groove is adapted to the shape of the convex part of the bottle mouth and is concavely arranged at the top of the sub-mold;

[0016] When the two sub-molds are in the closed state, the two groove cavities enclose a storage cavity for inserting the bottle mouth, the side of the positioning key forms a guide rail for directional sliding of the through groove, and the limit groove is used to support and limit the convex part; when the two sub-molds are in the open state, the sub-mold located at the front position of the conveying direction is in an inclined state, and the bottle body is in the same inclined state with the side of the positioning key to achieve blanking.

[0017] As a further solution of the present invention: the guide rail of the positioning key located in the groove cavity is of protruding design, and the guide rail is arranged along the length direction of the positioning key.

[0018] As a further solution of the present invention: the end of the guide rail close to the opening of the storage cavity is designed with a sharp chamfer.

[0019] As a further solution of the present invention: the limiting groove is of split design, which is formed by splicing a first sub-groove and a second sub-groove, and the first sub-groove and the second sub-groove are respectively provided on two sub-moulds.

[0020] As a further solution of the present invention: the joint ends of the two sub-molds are both recessed with installation grooves, and the sum of the groove depths of the two installation grooves is equal to the thickness of the positioning key, so that when the positioning key is installed on the corresponding sub-mold, the positioning key is located in the center position between the two sub-molds.

[0021] As a further solution of the present invention: a support rod is provided at the end of the plate chain, and a horizontally arranged baffle is provided on the support rod. The baffle is located within the movement path of the bottle body. When the two molds are in the open mold state and the bottle body is tilted against the guide rail, the baffle can block the bottle body to make the bottle mouth detach from the guide rail.

[0022] As a further solution of the present invention: the positioning key is detachably mounted on the mounting groove cavity of the sub-mold.

[0023] As a further solution of the present invention: the limiting groove is located directly above the positioning key.

[0024] As a further solution of the present invention: the opening of the storage cavity is chamfered.

[0025] As a further solution of the present invention: a transfer slide is provided at the end of the plate chain.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The collaborative design of a plate chain and symmetrical sub-molds enables precise positioning of bottles and automatic blanking through mold closing / opening switching. The conveying, positioning, and blanking functions are integrated into one unit. The coordinated design of the limit slots and positioning keys ensures accurate positioning of the bottle mouth, while the tilted opening of the sub-mold enables unpowered automatic blanking, greatly improving the reliability and efficiency of the conveying process.

[0028] 2、By setting protruding guide rails on the side of the positioning key, a continuous and stable guide rail structure is formed. This integrated design not only enhances the guiding accuracy of bottle movement, avoids position deviation during label fitting, but also simplifies the overall structure, reduces the processing difficulty and maintenance cost. The continuous arrangement of the guide rail along the length direction ensures the smooth transition of bottle conveying.

[0029] 3、The sharp chamfer design at the entrance end of the guide rail greatly reduces the resistance when the bottle is introduced, effectively preventing the bottle from being stuck. This design improves the smoothness of equipment operation, is suitable for high-speed continuous production conditions, reduces downtime caused by stuck bottles, and improves overall production efficiency.

[0030] 4、Using split splicing design, the limiting groove is divided into two sub-grooves and assembled after processing, which not only reduces the processing difficulty of individual parts, but also ensures accurate alignment when the mold is closed. This modular design improves manufacturing flexibility, facilitates replacement and maintenance, while ensuring positioning accuracy during use.

[0031] 5、By accurately controlling the matching relationship between the depth of the two installation groove cavities and the thickness of the positioning key, it is ensured that the positioning key is automatically in the middle position between the two molds. This self-centering design completely eliminates manual adjustment errors, greatly improving assembly accuracy and equipment operation stability.

[0032] 6、Using a simple combination of support rods and stop rods, the bottle automatically separates during mold opening through mechanical blocking. This purely mechanical structure avoids complex pneumatic or electric systems, has higher reliability and lower maintenance requirements, and is suitable for high-speed continuous production environment.

[0033] 7、The limiting groove is arranged directly above the positioning key, forming a continuous positioning system, so that the bottle mouth protrusion and the through groove positioning are kept on the same vertical line. This optimized layout improves positioning accuracy, reduces bottle shaking during conveying, and ensures process stability.

[0034] 8、The chamfer design at the opening of the placement cavity greatly reduces the alignment difficulty when the bottle is inserted, making the feeding operation more smooth.

[0035] 9、Add a transfer slide at the end of the plate chain to realize seamless connection with the downstream process. This design ensures smooth transition of the bottle from the conveying device to the next process, avoids manual intervention, and improves the automation level and overall efficiency of the production line. BRIEF DESCRIPTION OF DRAWINGS

[0036] The application will be further described below with reference to the accompanying drawings.

[0037] Figure 1 is a schematic of the packaging bottle structure in the prior art Figure 1 ;

[0038] Figure 2 is a packaging bottle body structure in the prior art Figure 2 ;

[0039] Figure 3 is a two-piece mold structure of the present application

[0040] Figure 4 is an exploded structure of Figure 3 ;

[0041] Figure 5 is a two-piece mold structure of the present application in the mold closed state

[0042] Figure 6 is a top view of the two-piece mold structure of the present application in the mold closed state

[0043] Figure 7 is a plate chain structure of the present application

[0044] Figure 8 is a two-piece mold structure of the present application on the plate chain

[0045] Figure 9 is a label production line structure of the present application

[0046] Figure 10 is a partial structure of Figure 9 ; Figure 1

[0047] Figure 11 is a partial structure of Figure 9 ; Figure 2

[0048] Figure 12 is a partial structure of Figure 9 ; Figure 3

[0049] Figure 13 is a partial structure of Figure 9 ; Figure 4

[0050] Figure 14 is a structure in which the label is not completely fitted on the bottle body

[0051] Figure 15 is a two-group steam pipe side view structure of the present application

[0052] In the figure:

[0053] 101, packaging bottle body; 102, external thread; 103, through slot; 104, annular flange; 105, convex portion

[0054] ​​​​1. Label sleeve assembly; 2. Shrinkage assembly; 3. Conveying assembly; 301. Plate chain; 3011. Chain plate; 4. Bottle seat; 5. Positioning key; 6. Limiting groove; 7. Guide rail; 8. Mounting slot; 9. Support rod; 10. Baffle rod; 11. First frame; 12. Guide column; 13. Feeding part; 14. Driving wheel; 15. Second frame; 16. Steam pipe; 1601. Air outlet; 17. Pressing assembly; 18. Third frame; 19. Pressing plate; 20. Driving source; 21. Transfer slide; 22. Bolt; 23. Nut; a. Bottle body. DETAILED DESCRIPTION

[0055] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0056] Example 1:

[0057] like Figures 9-15 As shown, an automated sleeve labeling production equipment includes a sleeve labeling component 1 for applying labels to bottles a, a shrinking component 2 for heat shrinking the sleeved bottles a, and a conveying component 3 for conveying the two components. The conveying component 3 is used to convey the bottles a to be sleeved to the sleeve labeling station of the sleeve labeling component 1. After the sleeve labeling component 1 completes the sleeve labeling work on the bottles a, the conveying component 3 conveys the bottles a to the shrinking station of the shrinking component 2. That is, the upstream section of the conveying component 3 is located at the sleeve labeling component 1, and the downstream section is located at the shrinking component 2.

[0058] Regarding the setting of the above-mentioned sleeve label assembly 1, the sleeve label assembly 1 can be directly used as a conventional component in the prior art, or a sleeve label assembly 1 proposed in this application can be used, which includes a first frame 11 provided at the upstream section of the conveying assembly 3, a feeding member 13 provided on the top outer wall of the first frame 11, and a guide column 12 provided on the top inner wall of the first frame 11. The feeding member 13 is used to supply labels to the guide column 12, and the supplied labels will be sleeved on the outside of the guide column 12, and the position directly below the guide column 12 forms a sleeve labeling station. Two sets of oppositely arranged drive wheels 14 are also provided in the first frame 11. Both drive wheels 14 can be driven to rotate by corresponding motors. The two drive wheels 14 are respectively provided on both sides of the guide column 12 and are in contact with the label on the outside of the guide column 12. When the bottle a is transported to the sleeve labeling station via the conveying assembly 3, the two drive wheels 14 rotate synchronously to impose a downward movement trend on the label, so that the label can be accurately sleeved on the bottle body of the bottle a and completely cover the bottle body. Figure 10As shown in the state, the rotation direction of the two drive wheels 14 is that the drive wheel 14 on the left side rotates in the clockwise direction, and the drive wheel 14 on the right side rotates in the counterclockwise direction.

[0059] It should be noted that during the labeling process, the conveying assembly 3 can be in a non-stop state. When it drives the bottle body a to the labeling station, the two drive wheels 14 quickly apply downward force to the label, so that the label is set on the bottle body a in a very short time. At the same time, for the setting of the feeding member 13, the feeding member 13 is a conventional component in the prior art, which will not be described here.

[0060] For the setting of the above shrinkage assembly 2, the shrinkage assembly 2 can use conventional components in the prior art, or use a shrinkage assembly 2 proposed in the present application. The shrinkage assembly 2 includes a second frame 15 arranged downstream of the conveying assembly 3. The second frame 15 is provided with two groups of parallel steam pipes 16. The inner sides of the two steam pipes 16 are provided with gas outlets 1601. Steam can be sprayed through the gas outlets 1601 to Figure 12 As shown in the state, the gas outlets 1601 are located on the side of the steam pipes 16 facing the paper. In this way, Figure 15 As shown in the state, the area between the two steam pipes 16 forms a walking channel, and a steam atmosphere environment is formed in the walking channel. Again, Figure 12 As shown in the state, the walking channel is arranged in a left-to-right inclined manner, so that when the bottle body a is conveyed from left to right, the walking channel with the above arrangement can gradually heat and shrink the label on the bottle body from bottom to top along the direction of travel.

[0061] The design of the walking channel with the above arrangement is adapted to the direction of travel of the bottle body a. By gradually shrinking the label on the bottle body from bottom to top, the label can be tightly attached to the bottle body, achieving a comfortable visual effect and perfect anti-counterfeiting effect.

[0062] Embodiment two:

[0063] As shown in Figure 9 and Figure 11 Based on the settings of the labeling assembly 1, the shrinkage assembly 2 and the conveying assembly 3, during the labeling process, the label may not be fully wrapped around the bottle body, for example, as shown in Figure 14 the lower part of the bottle body cannot be wrapped by the label. Therefore, the present application is provided with a pressing assembly 17 downstream of the labeling assembly 1 on the conveying assembly 3. The pressing assembly 17 is described as follows:

[0064] The pressing assembly 17 is used to press Figure 14The label in the shown state is pressed down, so that the label can be completely set on the bottle body, facilitating the subsequent shrinkage process. Specifically, the pressing assembly 17 includes a third frame 18 arranged at the conveying assembly 3, and a pressing plate 19 arranged on the third frame 18. The pressing plate 19 can reciprocate vertically upward and downward. When the pressing plate 19 is in the lower position, it is in contact with the top of the bottle body. With this design, when the label on the bottle body processed by the label setting assembly 1 is in a protruding state, the bottle body a moves to the lower position of the pressing plate 19, and the downward movement of the pressing plate 19 can push the label downward. Since the pressing plate 19 is in the lower position and only in contact with the top of the bottle body, the label will be pushed to completely set on the bottle body, and the pressing plate 19 will not cause damage to the top of the bottle body.

[0065] For the implementation of the upward and downward reciprocating movement of the pressing plate 19, a driving source 20 can be arranged on the third frame 18. The driving source 20 can be a conventional air cylinder, oil cylinder, electric push rod, etc., or a crank mechanism composed of a motor and a connecting rod, etc.

[0066] Embodiment three:

[0067] Based on the new structure of the bottle body a mentioned in the background art, if a simple base is arranged on the conveying assembly 3, it is difficult to limit and fix the special-shaped bottle mouth of the new structure of the bottle body a, and it is easy to cause the bottle body a to shake or deviate during the conveying process, resulting in that the label setting and shrinkage work cannot be normally performed. Based on this, the conveying assembly 3 is designed and improved in this embodiment.

[0068] As shown in Figures 3-8 , the conveying assembly 3 includes a plate chain 301 and a bottle seat 4. The plate chain 301 can reciprocate in a cycle. Part of the plate chain 301 can be represented by Figure 7 the shown state. The bottle seat 4 is composed of two groups of auxiliary molds 401 with grooves. The two auxiliary molds 401 are symmetrically arranged on two chain plates 3011 of the plate chain 301, Figure 8 the shown state shows that the two auxiliary molds 401 are installed on the plate chain 301. The two auxiliary molds 401 are installed on two chain plates 3011, each of which is separated by one chain plate 3011. Of course, the specific installation situation can be arranged according to the actual situation, and is not limited by the installation situation shown in Figure 8 .

[0069] Under normal conveying conditions, the two auxiliary molds 401 on the plate chain 301 are in the Figure 8 shown state. At this time, the two auxiliary molds 401 are in the closed mold state, and the grooves of the two auxiliary molds 401 enclose a storage cavity for the bottle mouth. The opening of the storage cavity is designed in a chamfered manner. With Figure 8The middle arrow direction refers to the advancing direction of the bottle body a. When the two molds 401 move to the end of the plate chain 301, the mold 401 located at the front of the advancing direction will first be in an inclined state. This state can be represented by Figure 9 and Figure 13 Figure 13 Among the two molds 401 in the mold opening state, the mold 401 on the right side can be represented as the mold 401 located at the front of the advancing direction. At this time, the two molds 401 are in the mold opening state, and the shape of the placement cavity is destroyed, and the bottle mouth is removed from the bottle seat 4.

[0070] In order to enable the bottle mouth to be stably limited after being inserted into the placement cavity, the embodiment is designed according to the through groove 103 on the new structure bottle body a, and a positioning key 5 is additionally arranged. The positioning key 5 is arranged on the mold 401 located at the front of the advancing direction, and one side of the positioning key 5 is located in the groove cavity of the mold 401. When the two molds 401 are in the mold closing state, the side of the positioning key 5 protrudes into the placement cavity. This state can be represented by Figure 6 The existence of this side is used for the through groove 103 to be sleeved and directionally slid during the process that the bottle mouth is placed into the placement cavity from top to bottom. By means of this design, the position of the bottle mouth in the placement cavity can be limited, so that the bottle body a always maintains a stable state on the bottle seat 4.

[0071] On the basis of the existence of the side of the positioning key 5, when the two molds 401 are in the mold opening state, since the positioning key 5 is arranged on the mold 401 located at the front of the advancing direction, when the mold 401 is in the inclined state in advance, the side of the positioning key 5 can drive the bottle body a to the same inclined state. This inclined state can be represented by Figure 13 When the mold 401 is inclined to a large enough angle, the through groove 103 at the bottle mouth will slide off the side of the positioning key 5 and move out of the mold 401.

[0072] In order to prevent the bottle body a from being inconvenient to collect when the mold 401 is inclined to a large angle, the embodiment is provided with a support rod 9 at the end position of the plate chain 301. The support rod 9 is provided with a horizontally arranged blocking rod 10, which is located in the movement path range of the bottle body a. When the two molds 401 are in the mold opening state as shown in Figure 13 and the bottle body a is in the inclined state by means of the side of the positioning key 5, the blocking rod 10 can block the bottle body a to make the bottle mouth of the bottle body a separate from the side of the positioning key 5, so as to realize the material falling. At the same time, on the basis of the material falling design at the small inclined angle, the embodiment is provided with a transfer slide 21 at the end position of the plate chain 301. The transfer slide 21 is used for receiving the dropped bottle body a.

[0073] ​In detail, the side edge of the positioning key 5 in the slot cavity is designed as a protruding type, which makes the side edge form a guide rail 7 arranged along the length direction of the positioning key 5. At the same time, in order to make the through slot 103 of the bottle mouth smoothly perform the insertion action from top to bottom, the end of the guide rail 7 close to the opening of the placing cavity is designed as a sharp chamfer type, so that Figure 5 As shown in the state, that is, the top end of the guide rail 7 is designed as a sharp chamfer type, which can guide the insertion action of the through slot 103.

[0074] Further, based on the design of the protruding part 105 of the new structure bottle body a, the embodiment can also open a limiting slot 6 at the top of the secondary mold 401. In the process of inserting the bottle mouth into the placing cavity from top to bottom, on the basis of the above-mentioned limitation of the through slot 103 by the side edge of the positioning key 5, the protruding part 105 is also accommodated and limited by the limiting slot 6, so that the whole bottle mouth is limited in multiple directions in the placing cavity, and a good stable state is presented.

[0075] Preferably, the limiting slot 6 is arranged above the positioning key 5, forming a continuous positioning system, so that the positioning of the protruding part 105 of the bottle mouth and the through slot 103 is kept on the same vertical line. This kind of optimized layout improves the positioning accuracy, reduces the shaking of the bottle body a in the conveying process, and ensures the process stability.

[0076] In order to facilitate the falling of the bottle body a on the secondary mold 401 in the mold opening state, the embodiment is recessed with a mounting slot cavity 8 at the joint end position of the two secondary molds 401. The sum of the slot depths of the two mounting slot cavities 8 is equal to the thickness of the positioning key 5, so that when the positioning key 5 is arranged on the corresponding secondary mold 401, the positioning key 5 is in the middle position between the two secondary molds 401. Therefore, in the mold opening state, Figure 13 As shown, only half of the bottle mouth is located on the slot cavity of the right secondary mold 401, which reduces the limitation of the secondary mold 401 on the bottle mouth in the mold opening state, and facilitates the bottle body a to fall off with a small inclination angle when the bottle body a is blocked by the stop rod 10.

[0077] In order to further make the bottle body a better fall, the embodiment is not limited to setting the limiting slot 6 as a single integral type, but sets it as a split type first split slot 601 and second split slot 602. The first split slot 601 and the second split slot 602 are arranged on the two secondary molds 401 respectively. Preferably, the first split slot 601 is arranged on the secondary mold 401 located at the trailing position in the running direction, and the second split slot 602 is arranged on the secondary mold 401 located at the leading position in the running direction. This design can be represented by Figure 3 As shown in the mold opening state, Figure 13 As shown, only half of the bottle mouth is located on the slot cavity of the right secondary mold 401, which reduces the limitation of the secondary mold 401 on the bottle mouth in the mold opening state, and facilitates the bottle body a to fall off with a small inclination angle when the bottle body a is blocked by the stop rod 10.

[0078] Since the through grooves 103 at the bottle mouths of different bottle bodies a have different depths and widths, the positioning key 5 is detachably arranged on the sub-mold 401 in this embodiment, which can be any one of clamping, buckling, bonding, threaded connection and the like. As shown in the figure, taking threaded connection as an example, the positioning key 5 is installed at the corresponding position of the sub-mold 401 through the cooperation of the bolt 22 and the nut 23. Figure 4

[0079] The above describes one embodiment of the present application in detail, but the content described is only a preferred embodiment of the present application and cannot be considered as limiting the implementation scope of the present application. Any equivalent changes and improvements made according to the application scope of the present application shall still belong to the patent coverage scope of the present application.​

Claims

1. A conveying device based on sleeve label production, characterized in that: include: A conveying assembly (3) comprising a plate chain (301) that performs cyclic reciprocating motion; The bottle holder (4) is composed of two sets of sub-molds (401) with groove cavities. The two sub-molds (401) are symmetrically fixed on two chain plates (3011) of the plate chain (301), so that the two sub-molds (401) have a closed mode state and an open mode state and can switch between the two states. A positioning key (5) is provided on the secondary mold (401) at a front position in the conveying direction, and one side of the positioning key (5) is located in the groove cavity; A limiting groove (6) adapted to the shape of the bottle mouth convex portion (105) and concavely arranged at the top of the secondary mold (401); When the two sub-molds (401) are in a closed-mold state, the two groove cavities are combined to form a storage cavity for inserting the bottle mouth, the side of the positioning key (5) forms a guide rail (7) for the directional sliding of the through groove (103), and the limiting groove (6) is used to support and limit the convex portion (105); when the two sub-molds (401) are in an open-mold state, the sub-mold (401) located at the front position in the conveying direction is in an inclined state, and the bottle body (a) is in the same inclined state with the side of the positioning key (5) to achieve blanking.

2. A conveying device based on sleeve label production according to claim 1, characterized in that: The guide rail (7) of the positioning key (5) located in the groove cavity is of protruding design, and the guide rail (7) is arranged along the length direction of the positioning key (5).

3. The conveying device based on sleeve label production according to claim 2 is characterized in that: One end of the guide rail (7) close to the opening of the storage cavity is designed with a sharp chamfer.

4. A conveying device for sleeve label production according to any one of claims 1 to 3, characterized in that: The limiting groove (6) is of split design, and is formed by splicing a first sub-groove (601) and a second sub-groove (602), and the first sub-groove (601) and the second sub-groove (602) are respectively arranged on the two sub-moulds (401).

5. A conveying device for sleeve label production according to any one of claims 1 to 3, characterized in that: The joint ends of the two sub-molds (401) are both recessed with mounting grooves (8), and the sum of the groove depths of the two mounting grooves (8) is equal to the thickness of the positioning key (5), so that when the positioning key (5) is installed on the corresponding sub-mold (401), the positioning key (5) is located in the center between the two sub-molds (401).

6. A conveying device for sleeve label production according to claim 2 or 3, characterized in that: A support rod (9) is provided at the end of the plate chain (301), and a horizontally arranged blocking rod (10) is provided on the support rod (9). The blocking rod (10) is located within the movement path of the bottle body (a). When the two sub-molds (401) are in the open mold state and the bottle body (a) is tilted against the guide rail (7), the blocking rod (10) can produce a blocking effect on the bottle body (a), so that the bottle mouth of the bottle body (a) is separated from the guide rail (7).

7. The conveying device for sleeve label production according to claim 5, characterized in that: The positioning key (5) is detachably mounted on the mounting groove cavity (8) of the sub-mold (401).

8. A conveying device for sleeve label production according to any one of claims 1 to 3, characterized in that: The limiting groove (6) is located just above the positioning key (5).

9. A conveying device for sleeve label production according to any one of claims 1 to 3, characterized in that: The opening of the storage cavity is chamfered.

10. A conveying device for sleeve label production according to any one of claims 1 to 3, characterized in that: A transfer slideway (21) is provided at the end of the plate chain (301).

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