Automatic production equipment for label-free packaging bottles and labeling method thereof

Abstract

The present application relates to an automatic production facility for label-free packaging bottles and belongs to the technical field of packaging bottle production. The facility includes a rack, and the rack is provided with a bottle transport device and a bottle labeling device. The bottle labeling device includes a pivot shaft provided on the rack and a driving annular plate fixed coaxially with the pivot shaft. A driving mechanism is provided on the rack to drive the pivot shaft to rotate. A plurality of loading trays are rotatably installed at the top of the driving annular plate, and the plurality of loading trays form a circumferential array distribution along the circumferential direction of the driving annular plate. A rotational motor is provided at the bottom of the driving annular plate to drive each loading tray to rotate. A driven annular plate is fixed coaxially with the pivot shaft, and a pressure assembly is provided on the driven annular plate to correspond to the loading tray. A plurality of laser headers for labeling a plurality of bottles are provided on the rack. The present application is advantageous for satisfying the demand for wide-surface packaging bottles and high-production labeling, and for batch production of label-free packaging bottles, as well as for eco-friendly recovery, energy consumption savings, and production cost reduction.

Description

Technology Field

[0001] The present application relates to the field of packaging bottle production, and in particular to an automatic production facility for label-free packaging bottles and a labeling method thereof. Background Technology

[0002] Currently, conventional packaging bottles are equipped with labels (numbers, letters, logos, names, QR codes, barcodes, DM codes, information labels, etc.) that are applied using adhesive or heat shrinkage. Although the packaging bottles are currently collected and recycled after use, a large amount of manpower is wasted because the labels on the bottles must be removed during collection. Furthermore, after removing some of the labels, label adhesive remains on the bottles, making disposal inconvenient and reducing the value of energy saving and eco-friendliness.

[0003] In order to meet the development vision of carbon reduction and eco-friendliness, the concept of "label-free PET bottles" has emerged over the past two years. This involves applying laser printing technology to the bottle body to label the bottle instead of attaching a label containing a brand logo and product information. By removing the label, the use of plastic in the production process can be reduced, material recovery can be simplified, and the recovery process can be reduced. However, with conventional label-free PET bottles, only a small amount of content can be printed on the bottle body using a laser device, and complete product information must be printed on the outer packaging box. Consequently, individual bottles cannot be sold, sales channels are limited, and the demand for wide-area and high-volume production cannot be satisfied. The problem to be solved

[0004] The present application aims to provide an automatic production facility for label-free packaging bottles and a labeling method thereof, for realizing wide surface area and high production volume labeling of packaging bottles. means of solving the problem

[0005] In a first aspect, the present application provides an automatic production facility for label-free packaging bottles, by applying the following technical solution:

[0006] In an automatic production facility for label-free packaging bottles including a rack, the rack is provided with a bottle transport device and a bottle labeling device, and the bottle transport device is located on one side of the bottle labeling device and is connected to the bottle labeling device via power transmission; The above-described bottle labeling device includes a pivot shaft provided on a rack and a driving annular plate fixed coaxially with the pivot shaft. A driving mechanism is provided on the rack to drive the pivot shaft to rotate. A plurality of loading trays are rotatably installed at the top of the driving annular plate, and the plurality of loading trays form a circumferential array distribution along the circumferential direction of the driving annular plate. A rotational motor is provided at the bottom of the driving annular plate to drive each loading tray to rotate. A driven annular plate is fixed coaxially on the pivot shaft, and a pressure assembly is provided on the driven annular plate to correspond to the loading trays. A plurality of laser headers for labeling bottles are provided on the rack, and the plurality of laser headers form a fan-shaped ring and are distributed on one side away from the bottle transport device of the driving annular plate.

[0007] By applying the technical method described above, when labeling is performed on packaged bottles, the packaged bottles are sequentially transported to the main annular plate side by a bottle transport device, and at the same time, the driving mechanism drives the main annular plate to rotate, thereby guiding the loading trays to revolve around the rotation axis, so that each loading tray sequentially takes charge of the transported packaged bottles. When the packaged bottles reach the corresponding loading tray, the corresponding pressurizing assembly pressurizes to load the packaged bottles onto the loading tray. Subsequently, during the rotation process of the main annular plate, the packaging bottle body is sequentially rotated in the direction of a plurality of laser headers, and the product information content of the packaging bottle body waiting for labeling is divided into a plurality of printing modules in advance, and the printing modules after division are distributed to the corresponding laser headers according to the printing order. When the packaging bottle body moves to each laser header side, each laser header completes its respective printing task, but if the printing position on the arc-shaped surface of the packaging bottle body needs to be changed, the loading tray is driven by a rotation motor to proceed with rotation, thereby completing the biased rotation of the printing position on the arc-shaped surface on the side wall of the bottle body. After the packaging bottle body completes all labeling, the packaging bottle body is sequentially discharged from the main annular plate side by a bottle body transport device to complete the discharge. By applying multiple laser headers to divide the printing range and sequentially and continuously laser labeling the bottle body, wide-area, high-production labeling work for label-free packaging bottles is realized, which is advantageous for batch production of label-free packaging bottles.

[0008] Optionally, the above-described bottle transport device includes a transport line, a feeding dial plate, and a discharging dial plate provided on a rack, wherein the feeding dial plate and the discharging dial plate are each pivotally connected to the rack and are located between the transport line and the main annular plate, and the driving mechanism is power-transmittingly connected to the feeding dial plate and the discharging dial plate, and a guide plate is installed across the upper portion of the transport line and the main annular plate, and the guide plate is located between the feeding dial plate and the discharging dial plate, and an inlet guide notch installed coaxially with the feeding dial plate is provided on one side of the guide plate, and an outlet guide notch installed coaxially with the discharging dial plate is provided on the other side, and a feeding rail and a discharging rail are provided on each side located on the guide plate on the transport line, and the feeding rail is in communication with the inlet guide notch, and the discharging rail is in communication with the outlet guide notch.

[0009] By applying the technical method described above, the transport line can implement transport of the packaged bottle body, and the packaged bottle body first enters the feeding rail through transport of the transport line, and at the same time, the driving mechanism drives the feeding dial plate to rotate, and the packaged bottle body at the output end of the feeding rail can be sequentially transferred onto the loading tray of the main annular plate through the feeding dial plate and the inlet guide notch on the guide plate; after the packaged bottle body completes labeling of all contents, it moves toward the discharging dial plate, and the driving mechanism simultaneously drives the discharging dial plate to rotate, and the packaged bottle body on the main annular plate can be sequentially transferred to the discharging rail through the feeding dial plate and the outlet guide notch on the guide plate to implement sequential discharging. By sharing a single transport line for feeding and discharging the packaged bottle, energy consumption is reduced and maintenance costs are lowered. Additionally, the feeding dial plate, the discharging dial plate, and the guide plate act as a bridge between the transport line and the main annular plate, which is advantageous for achieving the goal of automatically feeding and discharging the packaged bottle along the annular movement trajectory of the main annular plate.

[0010] Optionally, the driving mechanism includes a driving motor provided on a rack and a driving gear provided on the output end of the driving motor, a power transmission ring gear is fixed coaxially on the rotation axis, a first power transmission gear is fixed coaxially on the feeding dial plate, a second power transmission gear is fixed coaxially on the discharging dial plate, and the power transmission ring gears mesh with the driving gear, the first power transmission gear, and the second power transmission gear, respectively.

[0011] By applying the technical method described above, the purpose of driving the main gear to rotate when the driving motor rotates is achieved by guiding the rotation of the main gear, the rotation of the main gear to guide the rotation of the power transmission ring gear, and the rotation of the power transmission ring gear to guide the rotation of the rotation axis; at the same time, the purpose of driving the feeding dial plate and the discharging dial plate to rotate is achieved by guiding the rotation of the power transmission ring gear and the rotation of the power transmission ring gear to guide the rotation of the first power transmission gear and the second power transmission gear. By using a single driving motor as a driving source to drive the rotation axis, the feeding dial plate, and the discharging dial plate to rotate, the number of motors used is reduced, energy consumption is lowered, and it is advantageous to perform synchronized management control for feeding and discharging of the packaging bottle body on the main annular plate.

[0012] Optionally, the feeding rail includes feeding racks provided on both sides above the transport line, and between the two feeding racks, a curved buffer channel is formed that adapts to the outer diameter of the bottle, and the curved buffer channel is smoothly transitioned with an inlet guide notch.

[0013] By applying the technical solution described above, when a packaged bottle is transported between two feeding racks, the feeding speed of the packaged bottle is decelerated through a curved buffering channel, thereby reducing the impact that occurs when the packaged bottle and the feeding dial plate collide, and lowering the possibility of the packaged bottle being damaged or grooved. In addition, when the bottle feeding speed is too fast, two or more bottles may simultaneously enter one of the dial grooves during the rotation of the feeding dial plate, and the multiple bottles that have entered under the rotation of the feeding dial plate may be forcibly compressed, thereby reducing the case where the bottles are jammed and damaged, and lowering the possibility of the bottles being stuck or blocked.

[0014] Optionally, a distribution dial plate is pivotally connected to the feeding rack on one side therein, and a plurality of distribution catch grooves that allow only a single bottle body to pass through are uniformly installed on the outer surface of the distribution dial plate, and the distance from the outermost end of the distribution catch groove to the pivot center of the distribution dial plate is greater than the shortest distance from the pivot center of the distribution dial plate to the distribution catch groove of the curved buffer channel.

[0015] By applying the technical solution described above, bottles passing through a curved buffer channel are first separated one by one by a bottle distribution dial plate to maintain a constant distance between adjacent bottles, and then fed toward a feeding dial plate under the guidance of a transport line, thereby reducing the occurrence of two or more bottles entering a single dial groove on the feeding dial plate simultaneously and further reducing the possibility of bottle jamming.

[0016] Optionally, a detection rack is provided on the transport line, the detection rack is located on one side of the feeding end of the feeding rack, and a material detection sensor is provided on the detection rack to detect whether there is a bottle passing downward, a control cylinder is provided below the distribution dial plate, the control cylinder is electrically connected to the material detection sensor, a lifting rod is provided at the output end of the control cylinder, a few position limiting protrusion contacts are provided at the bottom of the distribution dial plate, the few position limiting protrusion contacts are circumferentially distributed along the rotation center of the distribution dial plate, and the lifting rod is located on a circular trajectory surrounded by a plurality of position limiting protrusion contacts.

[0017] By applying the aforementioned technical solution, when a bottle passes through a curved buffer channel, the centrifugal force acting on the bottle constantly changes during the motion. Consequently, the net force of the bottle's own gravity and centrifugal force continuously changes during the motion, causing the bottle to experience relatively large shaking within the curved buffer channel. In particular, the change in centrifugal force is greatest when the bottle passes the inflection point of the curved buffer channel, and the bottle is prone to tipping over due to the sudden change in centrifugal force. When feeding bottles from the transport line, adjacent bottles are in close contact with each other, allowing them to support one another during motion and thereby reducing the amplitude of shaking. In the initial stage of feeding, the lifting rod is positioned at a low level, the transport line is in operation, the initial speed of the transport line is relatively low, and the bottle does not easily tip over when passing through the curved buffer channel. After feeding for a certain period of time, the speed of the transport line gradually reaches the rated speed, and a material detection sensor detects whether there is a bottle passing downward. If the material detection sensor detects that there is a bottle passing downward, the control cylinder controls the lifting rod to maintain a low position at all times. If the material detection sensor detects that there is no bottle passing downward, it transmits an electrical signal, and upon receiving the electrical signal, the control cylinder controls the lifting rod to rise to a high position. At this time, the lifting rod interferes with the circumferential movement of the position limiting projection contact part, thereby limiting the rotation of the distribution dial plate and blocking the bottle from passing through the discharge section of the feeding rack.Through this, the number of bottles located between the dispensing dial plate and the material detection sensor can be maintained at a fixed value, which serves as a safety material level value for passing through the curved buffer channel. If the number of bottles behind the target bottle is less than the safety material level value, the dispensing dial plate blocks the target bottle from passing, thereby reducing the possibility of tipping over when the bottles behind the target bottle pass through the curved buffer channel. By having the blocked target bottle and the bottles behind wait for the production of the next batch and proceed with labeling production together with the bottles of the next batch, stability is guaranteed when the bottles pass through the curved buffer channel, and smooth bottle feeding is ensured.

[0018] Optionally, a guide spherical surface is provided at the bottom end of the position limiting projection contact portion, and a guide conical surface is provided at the top end of the lifting rod.

[0019] By applying the technical method described above, when the lifting rod moves upward, it is difficult to determine the position of the position limiting projection contact part, so there is a possibility that the lifting rod may collide head-on with one of the position limiting projection contact parts. By configuring a guide spherical surface and a guide conical surface, the guide spherical surface and the guide conical surface come into contact during the lifting process of the lifting rod. By forcing the position limiting projection contact part to rotate biasedly toward one side of the lifting rod through the guiding action of the guide conical surface, the case in which the lifting rod and the position limiting projection contact part collide and are compressed with each other when the control cylinder controls the lifting rod to rise to a high position can be reduced, and the possibility of the distribution dial plate being damaged can be lowered.

[0020] Optionally, the position limiting projection contact part includes a fixed part and a movable part installed from top to bottom, the fixed part is fixed to the bottom surface of the distribution dial plate, the guide spherical surface is provided at the bottom end of the movable part, and a cushioning spring is connected between the movable part and the fixed part.

[0021] By applying the technical solution described above, the problem in which the contact part of the position-limiting projection cannot automatically avoid contact when the tip of the guide cone surface and the lowest point of the guide sphere surface come into face-to-face contact during the lifting process of the lifting rod is resolved because the guide action of the guide cone surface and the guide sphere surface is not assisted. In the event that the aforementioned problem occurs, by configuring the moving part and the buffer spring, the tip of the guide cone surface and the lowest point of the guide spherical surface come into frontal contact, after which the buffer spring is compressed to provide cushioning against the collision of the lifting rod. At the same time, since the rotation of the distribution dial plate is not yet restricted, the distribution dial plate is still guided to rotate at a certain angle of deviation when the bottle body passes through the distribution dial plate. During the process of the distribution dial plate's deviation rotation, the fixed part rotates at a deviation accordingly, and after twisting occurs in the buffer spring, the moving part detaches from the lifting rod to implement an automatic reset of the moving part. This enables the position limiting projection contact part to automatically avoid the lifting rod, and further reduces the possibility of the lifting rod and the position limiting projection contact part colliding and being compressed when the control cylinder controls the lifting rod to rise to a high position.

[0022] In a second aspect, the present application further provides an automatic production facility for label-free packaging bottles and a labeling method thereof, by applying the following technical solution:

[0023] A labeling method for an automatic production facility for label-free packaging bottles comprises the following steps S1 to S4:

[0024] In step S1, a packaged bottle awaiting labeling is placed on a transport line so that the packaged bottle enters a feeding rail, and buffering of the bottle velocity is performed through a curved buffering channel;

[0025] In step S2, a driving mechanism is operated to guide the feeding dial plate to rotate, and the packaging bottle moves sequentially and continuously onto the loading tray on the main annular plate through the operating feeding dial plate and the inlet guide notch, and the pressurizing assembly proceeds to apply downward pressure to secure the bottle body onto the loading tray;

[0026] In step S3, when the loading tray moves to the position of the corresponding laser header, the corresponding laser header performs laser labeling on the packaging bottle body to complete the entry of primary product information; thereafter, a rotating motor drives the corresponding loading tray to rotate it at a certain angle, and simultaneously, a main ring plate rotates to rotate the corresponding loading tray toward the next adjacent laser header, and the next laser header performs secondary supplementary labeling on the packaging bottle body, and accordingly, the packaging bottle body passes through each laser header sequentially until the entry of all product information is completed, and each laser header performs sequential labeling on the packaging bottle body;

[0027] In step S4, when the packaged bottle body after labeling is passed through the operating discharge dial plate, the discharge dial plate causes the packaged bottle body to detach from the loading tray, and after detaching from the loading tray, the packaged bottle body enters the discharge rail through the exit guide notch to complete the discharge.

[0028] Optionally, in step S3, a labeling method of horizontal split labeling or vertical split labeling is selected based on the range size of the labeling content to be split, and after the module splitting of the labeling content is completed, the split content is sequentially input to the corresponding laser header side, and each laser header sequentially completes the labeling operation according to the input information. Effects of the invention

[0029] In summary, the present application comprises at least one beneficial technical effect as follows:

[0030] 1. By configuring multiple laser headers that form a fan-shaped ring distribution, the printing content of the bottle body is divided into multiple printing modules, and each printing module is distributed to each laser header. When the bottle body moves toward each laser header, each laser header completes its respective printing task. However, if the printing position on the arc-shaped surface of the bottle body needs to be changed, the loading tray is driven by a rotation motor to rotate, thereby completing the biased rotation of the printing position on the side wall of the bottle body. By applying multiple laser headers and dividing the printing range to sequentially and continuously perform laser labeling on the bottle body, wide-area, high-production labeling work for label-free bottles is realized, which is advantageous for batch production of label-free bottles.

[0031] 2. By configuring the drive gear, the first power transmission gear, and the second power transmission gear to mesh simultaneously through the power transmission ring gear, the drive gear is guided to rotate when the drive motor rotates, the rotation of the drive gear guides the rotation of the power transmission ring gear, and the rotation of the power transmission ring gear guides the rotation of the rotation axis, thereby achieving the purpose of driving the drive ring plate to rotate; at the same time, the rotation of the drive gear guides the rotation of the power transmission ring gear, and the rotation of the power transmission ring gear guides the rotation of the first power transmission gear and the second power transmission gear, thereby achieving the purpose of driving the feeding dial plate and the discharging dial plate to rotate. By using a single drive motor as a driving source to drive the rotation shaft, feeding dial plate, and discharging dial plate to rotate, the number of motors used is reduced, energy consumption is lowered, and it is advantageous for performing synchronized management control of feeding and discharging of the packaging bottle body on the main ring plate.

[0032] 3. By configuring the dispensing dial plate, material detection sensor, lifting rod, and position limiting projection contact part, the number of bottles located between the dispensing dial plate and the material detection sensor can be maintained at a fixed value. This value serves as a safety material level value for passing through the curved buffer channel. If the number of bottles behind the target bottle is less than the safety material level value, the dispensing dial plate blocks the target bottle from passing, thereby reducing the possibility of tipping over when the bottles behind the target bottle pass through the curved buffer channel. By having the blocked target bottle and the bottles behind wait for the production of the next batch and proceed with labeling production together with the bottles of the next batch, stability is ensured when the bottles pass through the curved buffer channel, and smooth feeding of the bottles is guaranteed. Brief explanation of the drawing

[0033] FIG. 1 is a schematic diagram illustrating the overall structure of an automatic production facility for label-free packaging bottles according to an embodiment of the present application. FIG. 2 is a schematic diagram of a structure implementing a bottle labeling device according to an embodiment of the present application. FIG. 3 is a schematic diagram of a structure implementing a pressure assembly according to an embodiment of the present application. FIG. 4 is a schematic diagram of a structure implementing a conical guide groove according to an embodiment of the present application. FIG. 5 is a schematic diagram of a structure implementing a bottle transport device according to an embodiment of the present application. FIG. 6 is a schematic diagram of a structure implementing a driving mechanism according to an embodiment of the present application. FIG. 7 is a schematic diagram of a structure implementing a feeding rail according to an embodiment of the present application. FIG. 8 is a schematic diagram of a structure implementing a distribution dial plate and a position limiting projection contact portion according to an embodiment of the present application. FIG. 9 is a schematic diagram of a structure illustrating the positional relationship between a control cylinder and a distribution dial plate according to an embodiment of the present application. FIG. 10 is a flowchart illustrating a labeling method for an automatic production facility for label-free packaging bottles according to an embodiment of the present application. Specific details for implementing the invention

[0034] Hereinafter, the present application will be described in more detail by combining FIGS. 1 to 10.

[0035] In a first aspect, the present application embodiment discloses an automatic production facility for label-free packaging bottles.

[0036] Referring to FIG. 1, an automatic production facility for unlabeled packaging bottles is provided, which includes a rack (1), and on the rack (1), a bottle body transport device (2) and a bottle body labeling device (3) are provided, the bottle body labeling device (3) is used to perform labeling work on the packaging bottles, and the bottle body transport device (2) is located on one side of the bottle body labeling device (3) and is connected to the bottle body labeling device (3) for power transmission, and is used for feeding and discharging the packaging bottles.

[0037] Referring to FIGS. 1 and 2, the bottle labeling device (3) includes a pivot shaft (31) and a main ring plate (32). The pivot shaft (31) is pivotally connected to a rack (1), and the main ring plate (32) is fixedly connected to the pivot shaft (31) coaxially through spokes. A driving mechanism (11) is provided on the rack (1) to drive the pivot shaft (31) to rotate. A plurality of loading trays (321) are pivotally installed at the top of the main ring plate (32), and the plurality of loading trays (321) form a circumferential array distribution along the circumferential direction of the main ring plate (32). A rotational motor (322) is mounted at the bottom of the main ring plate (32) to drive each loading tray (321) to rotate. A driven annular plate (33) is fixed coaxially on the pivot shaft (31) through spokes, and a pressure assembly (34) is provided on the driven annular plate (33) to correspond to a loading tray (321), and a plurality of laser headers (12) for labeling bottles are mounted on the rack (1), and the plurality of laser headers (12) form a fan-shaped ring and are distributed on one side away from the bottle transport device (2) of the main annular plate (32). In this embodiment, 12 laser headers (12) are installed, and the number of laser headers can be appropriately increased or decreased based on the actual labeling content.

[0038] When labeling is performed on the packaged bottles, the packaged bottles are sequentially transported to the main annular plate (32) by the bottle transport device (2), and at the same time, the driving mechanism (11) drives the main annular plate (32) to rotate, thereby guiding the loading tray (321) to surround the rotation axis (31) and revolve, so that each loading tray (321) sequentially takes charge of the transported packaged bottles. When the packaged bottles reach the corresponding loading tray (321), the corresponding pressurizing assembly (34) pressurizes downward to load the packaged bottles onto the loading tray (321). After that, during the rotation process of the main annular plate (32), the packaging bottle body is sequentially rotated in the direction of the multiple laser headers (12), and the product information content waiting to be labeled on the packaging bottle body is divided into multiple printing modules in advance, and the printing modules after division are distributed to the corresponding laser headers (12) according to the printing order. When the packaging bottle body moves to each laser header (12) side, each laser header (12) completes its respective printing task. However, if the printing position of the arc-shaped surface of the packaging bottle body needs to be changed, the loading tray (321) is driven by the rotation motor (322) to proceed with rotation, thereby completing the biased rotation of the arc-shaped surface printing position on the side wall of the bottle body. After the entire packaging bottle body has completed labeling, the packaging bottle body is sequentially discharged from the main annular plate (32) side by the bottle body transport device (2) to complete the discharge.

[0039] And, since each loading tray (321) is independent of each other and its rotation is controlled by a connected rotation motor (322), when performing a labeling operation, adjacent laser headers (12) can perform labeling of adjacent area content and can also implement labeling of cross area content, and the degree of cross in the horizontal direction is determined by the angle at which the corresponding rotation motor (322) rotates.

[0040] Referring to FIG. 1, a feeding camera (13) and a discharging camera (14) are mounted on a rack (1), and the feeding camera (13) and the discharging camera (14) are each located on both sides of a fan-shaped ring area formed by a plurality of laser headers (12). Here, the feeding camera (13) is used to photograph the bottle body to identify the position of the bottle body on the loading tray (321). If the bottle body has a non-cylindrical structure (e.g., a rectangular structure or other irregular structure) or has a texture on the surface of the bottle body, a rotating motor (322) is made to perform angle adjustment with respect to the corresponding loading tray (321), thereby causing the bottle body on the loading tray (321) to perform position determination adjustment before labeling, so as to avoid the edges or patterns of the bottle body, and the first laser header (12) determines the position of the labeling of the bottle body, thereby ensuring the labeling precision of the bottle body; The discharging camera (14) is used to detect the labeling of the bottle body, and when the bottle body detects the labeling, the corresponding rotation motor (322) drives the corresponding loading tray (321) to rotate in the circumferential direction, thereby allowing the discharging camera (14) to perform full detection of the entire circumferential surface of the packaged bottle body, and simultaneously perform image comparison or AI identification, and if a defective product is detected, the defective product is removed by a subsequent removal process.

[0041] Referring to FIGS. 2, 3, and 4, the pressure assembly (34) includes a pressure driving source (341) fixed on a driven annular plate (33) and a pressure rod (342) fixed coaxially with the output end of the pressure driving source (341). A pressure bushing (343) is pivotally connected to the lower end of the pressure rod (342), and a conical guide groove (3431) is opened at the bottom end of the pressure bushing (343). The radius of the opening end of the conical guide groove (3431) is larger than the radius of the opening of the packaging bottle. When the packaging bottle is transferred onto a loading tray (321) by a bottle transport device (2), the corresponding pressure driving source (341) drives the pressure rod (342) to move downward until the pressure bushing (343) comes into contact with the opening of the packaging bottle, thereby fitting and fixing the packaging bottle onto the loading tray (321). By configuring the conical guide groove (3431), center alignment can be performed on the packaging bottle body, thereby reducing the possibility that the seating position of the packaging bottle body on the loading tray (321) is off-center and improving the precision of the labeling operation performed on the laser header (12). In this embodiment, the pressurizing driving source (341) may be any one of a cylinder, a hydraulic cylinder, or an electric cylinder.

[0042] Referring to FIGS. 2 and FIGS. 5, the bottle transport device (2) includes a transport line (21) mounted on a rack (1), a feeding dial plate (22), and a discharging dial plate (23), wherein the feeding dial plate (22) is pivotally connected to the rack (1) and the discharging dial plate (23) is pivotally connected to the rack (1), and both the feeding dial plate (22) and the discharging dial plate (23) are located between the transport line (21) and the main annular plate (32), and the driving mechanism (11) is power-transmitting connected to the feeding dial plate (22) and the discharging dial plate (23). A guide plate (24) is installed across the upper portion of the transport line (21) and the main ring plate (32), and the guide plate (24) is positioned between the feeding dial plate (22) and the discharging dial plate (23). An inlet guide notch (241) installed coaxially with the feeding dial plate (22) is opened on one side of the guide plate (24), and an outlet guide notch (242) installed coaxially with the discharging dial plate (23) is opened on the other side. A feeding rail (25) and a discharging rail (26) are provided on each side of the transport line (21) located on the guide plate (24), and the feeding rail (25) is connected to the inlet guide notch (241), and the discharging rail (26) is connected to the outlet guide notch (242).

[0043] Since the transport line (21) is equipped with a transport function, the packaged bottle body first enters the feeding rail (25) through transport of the transport line (21), and at the same time, the driving mechanism (11) drives the feeding dial plate (22) to rotate, and the packaged bottle body at the output end of the feeding rail (25) can be sequentially transferred onto the loading tray (321) of the main ring plate (32) through the feeding dial plate (22) and the inlet guide notch (241) on the guide plate (24); After the packaging bottle body completes the labeling of all contents, it moves toward the discharging dial plate (23), and the driving mechanism (11) simultaneously drives the discharging dial plate (23) to rotate it, and sequential discharging can be achieved by sequentially transferring the packaging bottle body on the main annular plate (32) to the discharging rail (26) through the feeding dial plate (22) and the exit guide notch (242) on the guide plate (24). By sharing a single transport line (21) for feeding and discharging the packaged bottle body, energy consumption is reduced and maintenance costs are lowered. Additionally, the feeding dial plate (22), the discharging dial plate (23), and the guide plate (24) act as a bridge between the transport line (21) and the main annular plate (32), thereby making it advantageous to achieve the purpose of automatically feeding and discharging the packaged bottle body along the annular movement trajectory of the main annular plate (32).

[0044] Referring to FIGS. 2, 5 and 6, the driving mechanism (11) includes a driving motor (111) mounted on a rack (1) and a driving gear (112) fixed coaxially on the output end of the driving motor (111), a power transmission ring gear (311) fixed coaxially on a rotation axis (31) through a spoke, a first power transmission gear (221) fixed coaxially on the lower side of a feeding dial plate (22), and a second power transmission gear (231) fixed coaxially on the lower side of a discharging dial plate (23), and the power transmission ring gear (311) meshes with the driving gear (112), the first power transmission gear (221), and the second power transmission gear (231), respectively.

[0045] When the drive motor (111) rotates, the drive gear (112) is guided to rotate, and the rotation of the drive gear (112) guides the rotation of the power transmission ring gear (311), and the rotation of the power transmission ring gear (311) guides the rotation of the rotation shaft (31), thereby achieving the purpose of driving the drive annular plate (32) to rotate; at the same time, the rotation of the drive gear (112) guides the rotation of the power transmission ring gear (311), and the rotation of the power transmission ring gear (311) guides the rotation of the first power transmission gear (221) and the second power transmission gear (231), thereby achieving the purpose of driving the feeding dial plate (22) and the discharging dial plate (23) to rotate. By using a single drive motor (111) as a driving source to drive the rotation shaft (31), feeding dial plate (22), and discharging dial plate (23) to rotate, the number of motors used is reduced, energy consumption is lowered, and it is advantageous to perform synchronized management control for feeding and discharging of the packaging bottle body on the main ring plate (32). In the labeling process, the drive motor (111) operates continuously, and the feeding dial plate (22), the main ring plate, and the discharging dial plate (23) are always in an operating state. The loading tray (321) on the main ring plate (32) rotates around the rotation axis (31) without interruption during the labeling process. The laser header (12) rotates at a certain angle with respect to the laser beam emitted through a laser deflection rotor built into itself. By adjusting the beam position to correct the movement of the laser labeling position, the main ring plate (32) rotates continuously while the corresponding laser header (12) performs labeling on the packaging bottle body synchronously. Adjacent laser headers (12) can achieve a seamless connection of the labeling work, which is advantageous for each laser header (12) to ensure the continuity of labeling on the packaging bottle body, improve the labeling efficiency of the bottle body, and satisfy the production demand for high production volume.

[0046] Referring to FIG. 7, the feeding rail (25) includes feeding racks (251) mounted on both sides above the transport line (21), and between the two feeding racks (251), a curved buffer channel (252) is formed that adapts to the outer diameter of the bottle body, and the curved buffer channel (252) smoothly transitions with the inlet guide notch (241). When the packaged bottle body is transported between the two feeding racks (251), buffer deceleration is applied to the feeding speed of the packaged bottle body through the curved buffer channel (252), thereby reducing the impact that occurs when the packaged bottle and the feeding dial plate (22) collide, and lowering the possibility of the packaged bottle body being damaged or grooved. In addition, because the bottle feeding speed is too fast, two or more bottles may enter one of the dial grooves simultaneously during the rotation process of the feeding dial plate (22), and the multiple bottles that have entered under the rotation action of the feeding dial plate (22) may be forcibly compressed, thereby reducing the possibility of bottles getting stuck or broken and lowering the possibility of bottles getting stuck or blocked.

[0047] Referring to FIGS. 7 and 8, a distribution dial plate (27) is pivotally connected to a feeding rack (251) on one side thereof, and a plurality of distribution catch grooves (271) that allow only a single bottle body to pass through are uniformly installed on the outer surface of the distribution dial plate (27). The distance from the outermost end of the distribution catch groove (271) to the pivot center of the distribution dial plate (27) is greater than the shortest distance from the pivot center of the distribution dial plate (27) to the curved buffer channel (252). Accordingly, bottles passing through the curved buffer channel (252) are first separated one by one by the distribution catch grooves (271) of the bottle distribution dial plate to maintain a constant distance between adjacent bottles, and then fed toward the feeding dial plate (22) under the guide of the transport line (21), thereby reducing the occurrence of two or more bottles entering a single dial groove on the feeding dial plate (22) at the same time and further reducing the possibility of bottle jamming.

[0048] Referring to FIGS. 7, 8 and 9, a detection rack (211) is provided on the transport line (21), and the detection rack (211) is located on one side of the feeding end of the feeding rack (251). A material detection sensor (2111) is provided on the detection rack (211) to detect whether there is a bottle passing downward. A control cylinder (28) is provided below the distribution dial plate (27), and the control cylinder (28) is mounted on the corresponding feeding rack (251) on the same side. The control cylinder (28) is electrically connected to the material detection sensor (2111). A lifting rod (281) is fixed to the output end of the control cylinder (28), and a small position limiting projection contact (272) is provided at the bottom of the distribution dial plate (27), and the small position limiting projection contact (272) forms a circumferential distribution along the rotation center of the distribution dial plate (27), and the lifting rod (281) is located on a circular trajectory surrounded by a plurality of position limiting projection contacts (272).

[0049] When the bottle passes through the curved buffer channel (252), the centrifugal force acting on the bottle changes continuously during the movement process. Consequently, the resultant force of the bottle's own gravity and centrifugal force changes continuously during the movement process. As a result, the bottle experiences relatively large shaking in the curved buffer channel (252), and the change in the bottle's centrifugal force is greatest when the bottle passes the inflection point of the curved buffer channel (252). In particular, the bottle is prone to tipping over due to the sudden change in centrifugal force. When feeding the bottle from the transport line (21), adjacent bottles are in close contact with each other, so the adjacent bottles can support each other during movement, thereby reducing the amplitude of shaking. In the initial stage of feeding, the lifting rod (281) is positioned at a low position, the transport line (21) is in operation, the initial speed of the transport line (21) is relatively low, and the bottle does not easily tip over when passing through the curved buffer channel (252). After feeding for a certain period of time, the speed of the transport line (21) gradually reaches the rated speed, and the material detection sensor (2111) detects whether there is a bottle passing downward. When the material detection sensor (2111) detects that there is a bottle passing downward, the control cylinder (28) controls the lifting rod (281) to always maintain a low position. When the material detection sensor (2111) detects that there is no bottle passing downward, it transmits an electrical signal, and after receiving the electrical signal, the control cylinder (28) controls the lifting rod (281) to rise to a high position. At this time, the lifting rod (281) interferes with the circumferential movement of the position limiting projection contact part (272), thereby limiting the rotation of the distribution dial plate (27) and blocking the bottle from passing through the discharge section of the feeding rack (251).Through this, the number of bottles located between the distribution dial plate (27) and the material detection sensor (2111) can be maintained as a fixed value, and this value is a safety material level value passing through the curved buffer channel (252). When the number of bottles behind the target bottle is less than the safety material level value, the distribution dial plate (27) blocks the target bottle from passing, thereby reducing the possibility of the bottles behind the target bottle tipping over when passing through the curved buffer channel (252). By allowing the blocked target bottle and the bottles behind to wait for the production of the next batch and proceed with labeling production together with the bottles of the next batch, stability is ensured when the bottles pass through the curved buffer channel (252), and the feeding of the bottles is ensured to proceed smoothly.

[0050] Referring to FIG. 8, a guide spherical surface (2721) is provided at the bottom end of the position limiting projection contact portion (272), and a guide conical surface (2811) is provided at the top end of the lifting rod (281). When the lifting rod (281) moves upward, it is difficult to determine the position of the position limiting projection contact portion (272), so there is a possibility that the lifting rod (281) will collide head-on with one of the position limiting projection contact portions (272). By configuring the guide spherical surface (2721) and the guide conical surface (2811), the guide spherical surface (2721) and the guide conical surface (2811) come into contact during the lifting process of the lifting rod (281). By forcing the position limiting projection contact part (272) to rotate in a biased direction toward one side of the lifting rod (281) through the guiding action of the guide conical surface (2811), the case in which the lifting rod (281) and the position limiting projection contact part (272) collide and are compressed with each other when the control cylinder (28) controls the lifting rod (281) to rise to a high position can be reduced, and the possibility of the distribution dial plate (27) being damaged can be lowered.

[0051] Referring to FIG. 8, the position limiting projection contact portion (272) includes a fixed portion (2722) and a moving portion (2723) installed from top to bottom, the fixed portion (2722) is fixed to the bottom surface of the distribution dial plate (27), the guide spherical surface (2721) is provided at the bottom end of the moving portion (2723), and a cushioning spring (2724) is connected between the moving portion (2723) and the fixed portion (2722). By configuring the above-described structure, the problem that the position limiting projection contact portion (272) cannot automatically avoid contact when the cone end of the guide cone surface (2811) and the lowest point of the guide spherical surface (2721) come into frontal contact during the lifting process of the lifting rod (281) can be solved because it does not receive assistance from the guiding action of the guide cone surface (2811) and the guide spherical surface (2721).

[0052] In the event that the above-mentioned problem occurs, by configuring the moving part (2723) and the buffer spring (2724), the cone end of the guide cone surface (2811) and the lowest point of the guide spherical surface (2721) come into frontal contact, after which the buffer spring (2724) is compressed to provide cushioning against the collision of the lifting rod (281). At the same time, since the rotation of the distribution dial plate (27) is not yet restricted, the distribution dial plate (27) is still guided to rotate at a certain angle of deviation when the bottle body passes through the distribution dial plate (27). During the process of the distribution dial plate (27) rotating at a deviation, the fixed part (2722) rotates at a deviation accordingly, and after twisting occurs in the buffer spring (2724), the moving part (2723) is detached from the lifting rod (281) to implement an automatic reset of the moving part (2723), thereby allowing the position limiting projection contact part (272) to lift Automatic avoidance of the rod (281) is implemented, and when the control cylinder (28) controls the lifting rod (281) to rise to a high position, the possibility of the lifting rod (281) and the position limiting projection contact part (272) colliding and being compressed against each other can be further reduced.

[0053] In a second aspect, the present application embodiment further discloses a labeling method for an automatic production facility for label-free packaging bottles.

[0054] Referring to FIG. 10, an embodiment of the present application further discloses a labeling method for an automatic production facility for label-free packaging bottles, comprising the following steps:

[0055] In step S1, the packaging bottle body awaiting labeling is placed on the transport line (21) so that the packaging bottle body enters the feeding rail (25), and the bottle body speed is buffered through the curved buffer channel (252);

[0056] In step S2, the driving mechanism (11) is operated to guide the feeding dial plate (22) to rotate, and the packaging bottle is sequentially transferred onto the loading tray (321) on the main annular plate (32) through the operating feeding dial plate (22) and the inlet guide notch (241), and the pressurizing assembly (34) pressurizes downward to secure the bottle body onto the loading tray (321);

[0057] In step S3, when the loading tray (321) moves to the position of the corresponding laser header (12), the corresponding laser header (12) performs laser labeling on the packaging bottle body to complete the entry of primary product information; then, the rotation motor (322) drives the corresponding loading tray (321) to rotate at a certain angle, and at the same time, the main annular plate (32) rotates to rotate the corresponding loading tray (321) toward the next adjacent laser header (12), and the next laser header (12) performs secondary supplementary labeling on the packaging bottle body, and accordingly, until the entry of all product information is completed, the packaging bottle body passes through each laser header (12) sequentially, and each laser header (12) performs sequential labeling on the packaging bottle body;

[0058] In step S4, when the packaged bottle body after labeling is passed through the operating discharge dial plate (23), the discharge dial plate (23) removes the packaged bottle body from the loading tray (321), and the packaged bottle body after removing from the loading tray (321) enters the discharge rail (26) through the exit guide notch (242) to complete the discharge.

[0059] What needs to be explained is that in step S3, after all laser headers (12) have completed the labeling work, detection of the final labeling information of the bottle is performed to ensure the labeling quality of the bottle;

[0060] Next, if the bottle body has a non-cylindrical structure or a texture on its surface, position fixing adjustment is performed on the bottle body before labeling, so that the first laser header (12) determines the labeling position of the bottle body, thereby ensuring that the labeling position avoids the edge or pattern of the bottle body, and thus ensuring the labeling precision and quality of the bottle body.

[0061] In step S3, based on the range size of the labeling content to be divided, a horizontal division labeling or vertical division labeling method is selected for the labeling content. After the module division of the labeling content is completed, the divided content is sequentially input to the corresponding laser header (12), and each laser header (12) sequentially completes the labeling operation according to the input information. Here, the labeling content awaiting division includes, but is not limited to, a combination of one or more labels such as numbers, characters, LOGO, names, QR codes, barcodes, DM codes, and information labels. The label after division can be attached as a complete product information label on the packaging bottle body after undergoing labeling by the laser header (12). In this embodiment, the labeling content applies a horizontal division labeling combination method and a vertical division labeling combination method.

[0062] In the above-described bottle manufacturing method, by applying a plurality of laser headers (12) and dividing the printing range to sequentially and continuously perform laser labeling on the bottle body, a wide surface and high production volume labeling operation for label-free packaging bottles can be achieved, which is advantageous for batch production of label-free packaging bottles, and at the same time, the number of laser headers can be appropriately increased or decreased based on the actual labeling content.

[0063] All descriptions as set forth above are merely relatively preferred embodiments of the present application and do not limit the scope of protection of the present application. Accordingly, any equivalent variations made based on the structure, shape, and principles of the present application fall within the scope of protection of the present application. Explanation of the symbols

[0064] 1: Rack; 11: Drive mechanism; 111: Drive motor; 112: Drive gear; 12: Laser header; 13: Feeding camera; 14: Discharging camera; 2: Bottle transport device; 21: Transport line; 211: Detection rack; 2111: Material detection sensor; 22: Feeding dial plate; 221: First power transmission gear; 23: Discharging dial plate; 231: Second power transmission gear; 24: Guide plate; 241: Entrance guide notch; 242: Exit guide notch; 25: Feeding rail; 251: Feeding rack; 252: Curved buffer channel; 26: Discharging rail; 27: Distribution dial plate; 271: Distribution locking groove; 272: Position limiting projection contact; 2721: Guide spherical surface; 2722: Fixed part; 2723: Movable part; 2724: Buffer spring; 28: Control cylinder; 281: Lifting rod; 2811: Guide conical surface; 3: Bottle labeling device; 31: Rotating shaft; 311: Power transmission ring gear; 32: Actuator ring plate; 321: Loading tray; 322: Rotating motor; 33: Driven annular plate; 34: Pressure assembly; 341: Pressure driving source; 342: Pressure rod; 343: Pressure bushing; 3431: Conical guide groove.

Claims

Claim 1 In an automatic production facility for label-free packaging bottles including a rack (1), the rack (1) is provided with a bottle transport device (2) and a bottle labeling device (3), and the bottle transport device (2) is located on one side of the bottle labeling device (3) and is connected to the bottle labeling device (3) via power transmission; The above-described bottle labeling device (3) includes a pivot shaft (31) provided on a rack (1) and a driving annular plate (32) fixed coaxially with the pivot shaft (31). A driving mechanism (11) is provided on the rack (1) to drive the pivot shaft (31) to rotate. A plurality of loading trays (321) are rotatably installed at the top of the driving annular plate (32), and the plurality of loading trays (321) form a circumferential array distribution along the circumferential direction of the driving annular plate (32). A rotational motor (322) is provided at the bottom of the driving annular plate (32) to drive each loading tray (321) to rotate. A driven annular plate (33) is fixed coaxially on the pivot shaft (31), and a pressure assembly (34) is provided on the driven annular plate (33) to correspond to the loading tray (321). A plurality of laser headers (12) for labeling bottles are provided on the rack (1), and the plurality of laser headers (12) form a fan-shaped ring and are distributed on one side away from the bottle transport device (2) of the main ring plate (32);The above-described bottle transport device (2) includes a transport line (21), a feeding dial plate (22), and a discharging dial plate (23) provided on a rack (1), wherein the feeding dial plate (22) and the discharging dial plate (23) are each pivotally connected to the rack (1) and are located between the transport line (21) and the main annular plate (32), and the driving mechanism (11) is connected to the feeding dial plate (22) and the discharging dial plate (23) for power transmission, and a guide plate (24) is installed across the upper portion of the transport line (21) and the main annular plate (32), and the guide plate (24) is located between the feeding dial plate (22) and the discharging dial plate (23), and an inlet guide notch (241) installed coaxially with the feeding dial plate (22) is provided on one side of the guide plate (24), and on the other side, the discharging dial plate (23) and An exit guide notch (242) installed coaxially is provided, and a feeding rail (25) and a discharging rail (26) are provided on each side located on the guide plate (24) on the transport line (21), the feeding rail (25) is in communication with the inlet guide notch (241), and the discharging rail (26) is in communication with the exit guide notch (242); the feeding rail (25) includes a feeding rack (251) provided on both sides above the transport line (21), and a curved buffer channel (252) is formed between the two feeding racks (251) that adapts to the outer diameter of the bottle body, and the curved buffer channel (252) is smoothly connected to the inlet guide notch (241); A distribution dial plate (27) is pivotally connected on the feeding rack (251) on one side, and a plurality of distribution catch grooves (271) that allow only a single bottle body to pass through are uniformly installed on the outer surface of the distribution dial plate (27), and the distance from the outermost end of the distribution catch groove (271) to the pivot center of the distribution dial plate (27) is greater than the nearest distance from the pivot center of the distribution dial plate (27) to the curved buffer channel (252);A detection rack (211) is provided on the above transport line (21), and the detection rack (211) is located on one side of the feeding end of the feeding rack (251). A material detection sensor (2111) is provided on the detection rack (211) to detect whether there is a bottle passing downward. A control cylinder (28) is provided below the distribution dial plate (27), and the control cylinder (28) is electrically connected to the material detection sensor (2111). A lifting rod (281) is provided at the output end of the control cylinder (28). A small position limiting projection contact part (272) is provided at the bottom of the distribution dial plate (27). The small position limiting projection contact part (272) forms a circumferential distribution along the rotation center of the distribution dial plate (27). The lifting rod (281) is located on a circular trajectory surrounded by a plurality of position limiting projection contact parts (272). Automatic production equipment for label-free packaging bottles.; Claim 2 In claim 1, the driving mechanism (11) includes a driving motor (111) provided on a rack (1) and a driving gear (112) provided on the output end of the driving motor (111), a power transmission ring gear (311) is fixed coaxially on the rotation shaft (31), a first power transmission gear (221) is fixed coaxially on the feeding dial plate (22), a second power transmission gear (231) is fixed coaxially on the discharging dial plate (23), and the power transmission ring gear (311) meshes with the driving gear (112), the first power transmission gear (221), and the second power transmission gear (231), respectively, characterized by an automatic production facility for label-free packaging bottles. Claim 3 An automatic production facility for label-free packaging bottles, characterized in that, in claim 1, a guide spherical surface (2721) is provided at the bottom end of the position limiting projection contact portion (272), and a guide conical surface (2811) is provided at the top end of the lifting rod (281). Claim 4 In paragraph 3, the position limiting projection contact part (272) includes a fixed part (2722) and a moving part (2723) installed from top to bottom, the fixed part (2722) is fixed to the bottom surface of the distribution dial plate (27), the guide spherical surface (2721) is provided at the bottom end of the moving part (2723), and a cushioning spring (2724) is connected between the moving part (2723) and the fixed part (2722), characterized by an automatic production facility for label-free packaging bottles. Claim 5 A labeling method for an automatic production facility for label-free packaging bottles according to any one of claims 2 to 4, comprising the following steps S1 to S4: in step S1, a packaging bottle body awaiting labeling is placed on a transport line (21) to allow the packaging bottle body to enter a feeding rail (25), and buffering of the bottle body speed is performed through a curved buffer channel (252); in step S2, a driving mechanism (11) is operated to guide the feeding dial plate (22) to rotate, and the packaging bottle is sequentially and continuously moved onto a loading tray (321) on a main ring plate (32) through the operating feeding dial plate (22) and an inlet guide notch (241), and a pressure assembly (34) pressurizes downward to fix the bottle body onto the loading tray (321); In step S3, when the loading tray (321) moves to the position of the corresponding laser header (12), the corresponding laser header (12) performs laser labeling on the packaging bottle body to complete the entry of primary product information; then, the rotation motor (322) drives the corresponding loading tray (321) to rotate at a certain angle, and at the same time, the main annular plate (32) rotates to rotate the corresponding loading tray (321) toward the next adjacent laser header (12), and the next laser header (12) performs secondary supplementary labeling on the packaging bottle body, and accordingly, the packaging bottle body passes through each laser header (12) sequentially until the entry of all product information is completed, and each laser header (12) performs sequential labeling on the packaging bottle body;A labeling method for an automatic production facility for label-free packaging bottles, characterized in that, in step S4, when the packaging bottle body after labeling is passed through the operating discharging dial plate (23), the discharging dial plate (23) causes the packaging bottle body to detach from the loading tray (321), and after detaching from the loading tray (321), the packaging bottle body enters the discharging rail (26) through the exit guide notch (242) to complete discharging.; Claim 6 A labeling method for an automatic production facility for label-free packaging bottles, characterized in that, in step S3, module division is performed on the labeling waiting content of the packaging bottle body, and the labeling content after division is sequentially input to the corresponding laser header (12), and the laser header (12) selects to perform a labeling method of horizontal labeling or vertical labeling based on the divided labeling range size.

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