An automated packaging machine for plastic bottles

Abstract

This invention relates to the field of plastic bottle packaging equipment technology. The invention provides an automated packaging machine for plastic bottles, including a frame and a packaging mechanism. The packaging mechanism includes a reversing assembly and a bagging assembly. A reversing conveyor belt is mounted on the frame for conveying bottles. Guide plates are mounted on the frame and located above the reversing conveyor belt. The guide plates are arranged in pairs to block the bottom of both sides of the bottle. The reversing plate is rotatably mounted on the frame and located on the conveying path of the bottle. The bagging assembly is mounted on the frame for filling the bottles that have passed through the reversing plate into packaging bags. The reversing plate blocks the bottles so that they tilt towards the side with their tails facing. After each bottle passes, the reversing plate can rotate and switch the orientation of its tail, so that multiple bottles that have passed through the reversing plate alternately tilt to both sides. This technical solution solves the technical problem in related technologies where the stability of the bottle arrangement within the packaging bag needs improvement.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of plastic bottle packaging equipment technology, specifically to an automated packaging machine for plastic bottles. Background Technology

[0002] With the widespread use of plastic products in various fields, plastic bottles, as a common packaging container, have a huge production volume and a wide range of applications, covering many industries such as food, beverages, daily chemicals, and pharmaceuticals. In the packaging process of plastic bottles, traditional plastic bottle packaging machines typically use a method of loading the bottles into the packaging bag in a uniform orientation. This method is relatively simple to operate and easy to automate. However, because the bottom and top areas of plastic bottles often differ—for example, common beverage bottles have a narrower top for easier drinking and a wider bottom for better support—this difference results in an uneven distribution of the center of gravity within the packaging bag for uniformly packaged plastic bottles, thus affecting the overall stability.

[0003] To improve packaging stability, some equipment uses a packaging method where adjacent rows of bottles face opposite directions. This method adjusts the center of gravity distribution of the bottles within the packaging bag to some extent, improving stability. However, the improvement is limited. During transportation and storage, the packaging bag may still be affected by external forces such as vibration and compression, causing the bottles to shift or tip over, thus affecting the integrity and stability of the entire packaging.

[0004] In conclusion, developing a packaging machine that can improve the stability of plastic bottle packaging is of great practical significance. It is crucial for promoting the development of the plastic bottle packaging industry, reducing production costs, and improving the quality assurance capabilities of products during the distribution process. Summary of the Invention

[0005] To overcome the above-mentioned defects, embodiments of the present invention provide an automated packaging machine for plastic bottles, which solves the technical problem that the stability of the arrangement of bottles in the packaging bag needs to be improved in related technologies.

[0006] According to one aspect, at least one embodiment of the present invention provides an automated packaging machine for plastic bottles, including a frame and a packaging mechanism. The packaging mechanism includes a reversing assembly and a bagging assembly. The reversing assembly includes a reversing conveyor belt, guide plates, and a reversing plate. The reversing conveyor belt is disposed on the frame for conveying bottles. The guide plates are disposed on the frame and located above the reversing conveyor belt. The guide plates are arranged in pairs to block the bottom of both sides of the bottle body to limit the conveying direction of the bottle body. The reversing plate is rotatably disposed on the frame and located on the conveying path of the bottle body. The bagging assembly is disposed on the frame for filling the bottle body that has passed through the reversing plate into a packaging bag.

[0007] The tail end of the reversing plate is configured to face either the left or right side of the bottle to block the bottle so that it tilts to the side facing the tail end. After each bottle passes, the reversing plate can rotate and switch the orientation of the tail end so that multiple bottles passing the reversing plate alternately tilt to both sides.

[0008] For example, an automated packaging machine for plastic bottles provided in at least one embodiment of the present invention further includes:

[0009] The packaging mechanism also includes a leveling baffle and a centering plate. The leveling baffle is slidably mounted on the frame and located above the reversing conveyor belt. It is used to block bottles passing through the reversing plate to adjust the bottle posture to be perpendicular to the conveying direction. There are two centering plates, both of which are slidably mounted on the leveling baffle. They are used to push the bottles blocked by the leveling baffle to the middle of the reversing conveyor belt.

[0010] For example, an automated packaging machine for plastic bottles provided in at least one embodiment of the present invention further includes:

[0011] The reversing assembly further includes a reversing rack and a reversing gear. The reversing rack is slidably disposed on the leveling baffle perpendicular to the conveying direction. The reversing gear is disposed on the reversing plate. The reversing rack can mesh with the reversing gear under the driving force of the leveling baffle descending, so as to drive the reversing plate to rotate and switch the tail end orientation.

[0012] For example, an automated packaging machine for plastic bottles provided in at least one embodiment of the present invention further includes:

[0013] The reversing assembly further includes a reversing base plate, which has a reversing groove in the shape of a parallelogram. The reversing rack has a limiting post located within the reversing groove. Guided by the reversing groove, the reversing rack can engage with the reversing gear when descending and disengage from the reversing gear when ascending.

[0014] For example, an automated packaging machine for plastic bottles provided in at least one embodiment of the present invention further includes:

[0015] The bagging assembly includes a support, a bagging conveyor belt, a lifting frame, and a clamping unit. The support is slidably mounted on the frame in the vertical conveying direction. The bagging conveyor belt is mounted on the support and is used to receive bottles conveyed by the reversing conveyor belt. The lifting frame is slidably mounted on the frame and located above the bagging conveyor belt. The clamping unit is mounted on the lifting frame and is used to clamp bottles on the bagging conveyor belt.

[0016] After the clamping unit clamps the bottle, the bagging conveyor belt can slide to one side to make way for the clamping unit. Under the drive of the lifting frame, the clamping unit can carry the bottle into the packaging bag below the bagging conveyor belt.

[0017] For example, an automated packaging machine for plastic bottles provided in at least one embodiment of the present invention further includes:

[0018] An adsorption plate is provided on the support frame. The surface of the adsorption plate has several adsorption holes. The adsorption plate is used to communicate with an external negative pressure unit. The adsorption plate is located below the bagging conveyor belt. A plate feeding platform is provided on one side of the bagging conveyor belt. The plate feeding platform is used to support the stacked partitions. A top plate is slidably provided on the plate feeding platform to push the partitions upward.

[0019] The adsorption plate can be moved above the feeding platform under the drive of the bracket and adsorb the partition. After the bagging conveyor belt returns to the top of the packaging bag, the negative pressure is released so that the partition falls onto the top row of bottles inside the packaging bag.

[0020] For example, an automated packaging machine for plastic bottles provided in at least one embodiment of the present invention further includes:

[0021] A top support roller is rotatably mounted on the bracket. The top support roller is located below the bagging conveyor belt and is used to support the surface of the bagging conveyor belt.

[0022] For example, an automated packaging machine for plastic bottles provided in at least one embodiment of the present invention further includes:

[0023] The clamping unit includes a sliding plate and a clamping plate. There are two sliding plates, both of which are slidably mounted on the lifting frame. Multiple clamping plates are slidably mounted on the sliding plates. The clamping plates are used to clamp the bottles on the bagging conveyor belt. A spring is provided between the clamping plate and the sliding plate. The spring is used to provide a force for the clamping plate to approach the bottle.

[0024] For example, an automated packaging machine for plastic bottles provided in at least one embodiment of the present invention further includes:

[0025] The bagging assembly further includes a sliding support plate, a fixed support plate, and a damping support plate. The sliding support plate is slidably mounted on the frame, and the fixed support plate is fixedly mounted on the frame to jointly open the bag opening. The damping support plate is slidably mounted on the frame, and a damping layer is provided on the sliding mating surface between the damping support plate and the frame. The damping support plate is used to support the bottom of the bag to bear the weight of the bottle inside the bag.

[0026] For example, an automated packaging machine for plastic bottles provided in at least one embodiment of the present invention further includes:

[0027] It also includes an auxiliary mechanism, which includes an incoming material conveyor belt, a mouth-supporting assembly, and a pusher plate. The incoming material conveyor belt is mounted on the frame and is used to convey bottles. The mouth-supporting assembly is mounted on the frame and is used to open the bag opening of the packaging bag. The pusher plate is slidably mounted on the frame and is used to push the bottles on the incoming material conveyor belt into the packaging bag that has been opened by the mouth-supporting assembly.

[0028] The beneficial effects of the embodiments of the present invention are as follows:

[0029] In this invention, the tail end of the reversing plate can face either the left or right side of the bottle. When the bottle is conveyed to the position of the reversing plate, the upper side of the bottle is blocked by the reversing plate, while the bottom side is restricted by the guide plate, causing the bottle to tilt towards the side facing the tail end of the reversing plate. After a bottle passes and tilts, the reversing plate rotates 180° under the action of the driving device, with its tail end facing the opposite direction of the previous bottle's tilting direction. In this way, when the next bottle passes, it will tilt in the opposite direction, achieving opposite tilting directions for adjacent bottles, and thus making the orientation of adjacent bottles opposite after packaging. Bottles that have been reversed by the reversing plate are placed into packaging bags by the subsequent bagging assembly. When the packaging bag is full, the packaging bag is sealed by a heat-sealing device, completing the packaging of the plastic bottles. Because adjacent bottles face opposite directions, the center of gravity distribution of the bottles inside the packaging bag is more uniform, reducing the problem of center of gravity shift caused by the difference in area between the bottom and top of the bottle, thereby improving the overall stability of the packaging bag.

[0030] In this design, the number of bottles in each row within the packaging bag is odd. This design uses a reversing component to ensure adjacent bottles face opposite directions after packaging, effectively adjusting the center of gravity distribution of the bottles within the bag. Compared to traditional uniform-direction packaging and partially reversed-direction packaging, this improves packaging stability. During transportation and storage, even under external forces such as vibration and compression, the bottles are less likely to shift or tip over, ensuring packaging integrity and enhancing product quality assurance during distribution. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of the present invention and these drawings without any creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of an automated packaging machine for plastic bottles according to one embodiment of the present invention;

[0033] Figure 2 for Figure 1 A schematic diagram of the commutation component in the embodiment;

[0034] Figure 3 for Figure 1 A top view of the commutation component in the embodiment;

[0035] Figure 4 for Figure 1 A schematic diagram of the commutator plate in the embodiment;

[0036] Figure 5 for Figure 1 A schematic diagram of the bagging assembly at one angle in the embodiment;

[0037] Figure 6 for Figure 1 A schematic diagram of the bagging assembly from another angle in one embodiment;

[0038] Figure 7 for Figure 1 A front view of the bagging assembly in the embodiment;

[0039] Figure 8 for Figure 1 A schematic diagram of the clamping unit in the embodiment;

[0040] Figure 9 for Figure 1 A schematic diagram of the bagging conveyor belt structure in the embodiment;

[0041] Figure 10 for Figure 1 The schematic diagram of the auxiliary mechanism in the embodiment is shown.

[0042] In the diagram: 1. Frame; 2. Packaging mechanism; 201. Reversing assembly; 202. Bagging assembly; 2011. Reversing conveyor belt; 2012. Guide plate; 2013. Reversing plate; 203. Leveling baffle; 204. Centering plate; 2014. Reversing rack; 2015. Reversing gear; 2016. Reversing base plate; 2017. Reversing chute; 2018. Limiting post; 2021. Support; 2022. Bagging conveyor belt; 2023. Lifting frame, 2024, clamping unit, 2025, adsorption plate, 2026, adsorption hole, 2027, plate feeding platform, 2028, top plate, 2029, top support roller, 20241, sliding plate, 20242, clamping plate, 20243, spring, 2030, sliding support plate, 2031, fixed support plate, 2032, damping support plate, 3, auxiliary mechanism, 301, material conveyor belt, 302, support assembly, 303, pusher plate. Detailed Implementation

[0043] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it.

[0044] To keep the drawings concise, each drawing only schematically shows the parts relevant to the invention; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0045] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0048] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0049] like Figures 1-10As shown, an automated packaging machine for plastic bottles according to an embodiment of the present invention is illustrated, including a frame 1 and a packaging mechanism 2. The packaging mechanism 2 includes a reversing assembly 201 and a bagging assembly 202. The reversing assembly 201 includes a reversing conveyor belt 2011, a guide plate 2012 and a reversing plate 2013.

[0050] The frame 1 is the basic support structure of the packaging machine. In the reversing assembly 201 of the packaging mechanism 2, the reversing conveyor belt 2011 is mounted on the frame 1, and the guide plates 2012 are set on the frame 1, above the reversing conveyor belt 2011, and are arranged in pairs to block the bottom of the two sides of the bottle. The reversing plate 2013 is rotatably mounted on the frame 1 via a rotating shaft and is located in the conveying path of the bottle. The reversing plate 2013 is designed to be arc-shaped. The bagging assembly 202 of the packaging mechanism 2 is located downstream of the reversing plate 2013 and is responsible for filling the bottles that have passed through the reversing plate 2013 into packaging bags.

[0051] During operation, the tail end of the reversing plate 2013 can face either the left or right side of the bottle. When the bottle is conveyed to the position of the reversing plate 2013, the bottle opening on the upper side of the bottle is blocked by the reversing plate 2013, causing the bottle to tilt towards the side facing the tail end of the reversing plate 2013. No guide plate 2012 is installed where the bottle tilts onto the reversing conveyor belt 2011 to prevent the bottle from pressing against the guide plate 2012 and failing to contact the reversing conveyor belt 2011. After a bottle passes and tilts, the reversing plate 2013 rotates 180° under the action of the drive device, with its tail end facing the opposite direction of the previous bottle's tilting. Thus, when the next bottle passes, it tilts in the opposite direction, achieving opposite tilting directions for adjacent bottles, resulting in opposite orientations for adjacent bottles after packaging. Bottles that have been reversed by the reversing plate 2013 are then placed into packaging bags by the subsequent bagging assembly 202. Once the packaging bag is full, a heat-sealing device seals the bag, completing the packaging of the plastic bottle. Because adjacent bottles face opposite directions, the center of gravity of the bottles is more evenly distributed within the packaging bag, reducing the problem of center of gravity shift caused by differences in the area of ​​the bottom and top of the bottles, thereby improving the overall stability of the packaging bag.

[0052] In this embodiment, the number of bottles in each row within the packaging bag is odd. This solution uses a reversing component 201 to ensure adjacent bottles face opposite directions after packaging, effectively adjusting the center of gravity distribution of the bottles within the packaging bag. Compared to traditional uniform-direction packaging and partially reversed-direction packaging, this improves packaging stability. During transportation and storage, even under external forces such as vibration and compression, the bottles are less prone to displacement or tipping, ensuring packaging integrity and enhancing product quality assurance during distribution.

[0053] In some examples, such as Figures 2-4As shown, the leveling baffle 203 is slidably mounted on the frame 1, above the reversing conveyor belt 2011. Two centering plates 204 are slidably mounted on the leveling baffle 203. The reversing rack 2014 is perpendicular to the conveying direction and slidably connected to the leveling baffle 203. The reversing gear 2015 is fixedly mounted on the rotating shaft of the reversing plate 2013 and rotates synchronously with the reversing plate 2013. The reversing base plate 2016 is fixedly mounted on the frame 1, and a reversing groove 2017 is machined on the reversing base plate 2016. The reversing groove 2017 is parallelogram in shape. A limit post 2018 is provided on the reversing rack 2014 at a position corresponding to the reversing groove 2017, and the limit post 2018 can slide within the reversing groove 2017.

[0054] During operation, after the bottle passes the reversing plate 2013 and tilts, its posture is somewhat random. At this time, the leveling baffle 203 descends under the action of the lifting drive device, blocking the bottle. As the reversing conveyor belt 2011 continues to run, the bottle is adjusted by the push of the conveyor belt until its axis is perpendicular to the conveying direction. Subsequently, the two centering plates 204 move simultaneously towards the middle of the reversing conveyor belt 2011, pushing the bottle to the middle position of the reversing conveyor belt 2011. In this way, each bottle can remain on the same conveying path as it continues to be conveyed, providing an accurate positional basis for subsequent bagging operations.

[0055] Since the limiting post 2018 is located within the reversing slide 2017, and the reversing slide 2017 is a parallelogram, in the initial stage when the leveling baffle 203 drives the reversing rack 2014 to descend, the limiting post 2018 moves within the vertical section of the reversing slide 2017, allowing the reversing rack 2014 to mesh with the reversing gear 2015, thereby driving the reversing plate 2013 to rotate and switch the orientation of its tail end. As the reversing rack 2014 continues to descend, the limiting post 2018 enters the inclined section at the bottom of the reversing slide 2017. Under the guidance of the inclined section, the reversing rack 2014 disengages from the reversing gear 2015. When the leveling baffle 203 rises and resets, the limiting post 2018 moves along another vertical section of the reversing slide 2017. At this time, the reversing rack 2014 will not drive the reversing gear 2015 to rotate, preventing the reversing plate 2013 from rotating back to its original position. This structural design enables the lifting action of the leveling baffle 203 to be linked with the rotation of the reversing plate 2013, ensuring that the reversing plate 2013 can automatically switch the orientation of its tail end every time it passes a bottle, thereby ensuring that the tilting direction of adjacent bottles is opposite.

[0056] In some examples, such as Figures 5-9As shown, in the bagging assembly 202, the support 2021 is slidably connected to the frame 1, and the bagging conveyor belt 2022 is mounted on the support 2021. The lifting frame 2023 is slidably mounted on the frame 1, located above the bagging conveyor belt 2022. The lifting frame 2023 is connected to a lifting drive device, such as an electric push rod or a hydraulic cylinder, which can control the lifting of the lifting frame 2023 to ensure that the clamping unit 2024 can place the bottle into the packaging bag. In the clamping unit 2024, there are two sliding plates 20241, slidably mounted on the lifting frame 2023. Multiple clamping plates 20242 are slidably mounted on each sliding plate 20241, and a spring 20243 is provided between the clamping plates 20242 and the sliding plate 20241 to provide a force close to the bottle for the clamping plates 20242.

[0057] A sliding support plate 2030 is slidably mounted on the frame 1, while a fixed support plate 2031 is fixedly mounted on the frame 1. The sliding support plate 2030 is connected to a horizontal drive device, such as an electric push rod or a cylinder, which allows it to move horizontally on the frame 1 and cooperate with the fixed support plate 2031 to open the bag opening. A damping support plate 2032 is slidably mounted on the frame 1, located below the packaging bag. The sliding contact surface between the damping support plate 2032 and the frame 1 is provided with a damping layer to provide appropriate resistance.

[0058] During operation, before bottling, the sliding support plate 2030, driven by the horizontal drive device, cooperates with the fixed support plate 2031 to open the bag opening. As bottles are continuously filled into the bag, the damping support plate 2032 supports the weight of the bottles inside. Because a damping layer is provided between the damping support plate 2032 and the frame 1, the damping support plate 2032 descends slowly under the weight of the bottles, always maintaining contact with the bottom of the bag. This ensures that the bag will not detach from the support plate due to excessive weight during bottling, guaranteeing a smooth bottling process.

[0059] After the bottle is conveyed from the reversing conveyor belt 2011 to the bagging conveyor belt 2022, the clamping unit 2024 begins to operate. Two sliding plates 20241 move relative to each other under the action of the drive device, causing multiple clamping plates 20242 to synchronously approach the bottle. Because each clamping plate 20242 is connected to a sliding plate 20241 by a spring 20243, the force provided by the spring 20243 ensures that the clamping plate 20242 fits tightly against the bottle. Compared to a single clamping plate 20242, this design, where multiple clamping plates 20242 correspond to individual bottles, ensures that the clamping force on each bottle is uniform, preventing individual bottles from falling due to insufficient clamping force. After clamping the bottle, the bagging conveyor belt 2022 slides to one side under the drive of the bracket 2021, making room for the clamping unit 2024. Next, the lifting frame 2023 descends under the action of the lifting drive device, and the clamping unit 2024 carries the bottle into the packaging bag whose opening is opened by the sliding support plate 2030 and the fixed support plate 2031. After reaching the appropriate position, the sliding plate 20241 moves in the opposite direction, the clamping plate 20242 releases the bottle, and the lifting frame 2023 rises and resets, completing one bottling operation.

[0060] In some examples, such as Figures 5-7 As shown, the adsorption plate 2025 is mounted on the support 2021, located below the bagging conveyor belt 2022. The surface of the adsorption plate 2025 has a plurality of adsorption holes 2026 evenly distributed, and the adsorption plate 2025 is connected to an external negative pressure unit via a pipe. When the external negative pressure unit is activated, a negative pressure is formed on the surface of the adsorption plate 2025. The plate feeding platform 2027 is located beside the bagging conveyor belt 2022 and is used to support the stacked partitions. The top plate 2028 is slidably mounted on the plate feeding platform 2027. The top plate 2028 is connected to a driving device, such as an electric push rod or a cylinder, which can push the stacked partitions upwards. The support roller 2029 is rotatably mounted on the support 2021, located below the bagging conveyor belt 2022.

[0061] During operation, when the bagging conveyor belt 2022 moves to one side to make room for the clamping plate 20242, the bracket 2021 drives the adsorption plate 2025 to move synchronously above the feeding platform 2027. At this time, the top plate 2028 moves upward under the action of the drive device, supporting the partitions stacked on the feeding platform 2027, so that the uppermost partition comes into contact with the adsorption holes 2026 on the surface of the adsorption plate 2025. The external negative pressure unit is activated, and the adsorption plate 2025 generates negative pressure through the adsorption holes 2026, adsorbing the uppermost partition. Then, after completing the repositioning action, the bagging conveyor belt 2022 returns to its original position above the packaging bag. At this time, the external negative pressure unit is deactivated, the adsorption plate 2025 is released from negative pressure, and the adsorbed partition loses its adsorption force and falls onto the top row of bottles inside the packaging bag under the action of gravity. This method allows for the placement of partitions between adjacent rows of bottles inside the packaging bag, preventing collisions and squeezing between the bottles, optimizing the support structure of the bottles inside the packaging, and improving the overall stability of the packaging.

[0062] During the bagging process, to minimize the descent stroke of the clamping plate 20242 and improve bagging efficiency, the top support roller 2029 supports the belt surface below the bagging conveyor belt 2022. Due to the action of the top support roller 2029, the belt surface below the bagging conveyor belt 2022 bulges upwards, reducing the overall thickness of the bagging conveyor belt 2022. This allows the packaging bag to be positioned as high as possible, reducing the required descent distance when the clamping plate 20242 carries the bottle into the packaging bag, thus accelerating the bagging speed and reducing potential instability caused by excessive descent stroke of the clamping plate 20242.

[0063] In some examples, such as Figure 10 As shown, during the plastic bottle packaging process, when the product packaging does not require adjacent bottles to be placed in reverse, auxiliary mechanism 3 can be used for packaging. The bottles are first conveyed by the infeed conveyor belt 301, which is located upstream of the reversing conveyor belt 2011 in the entire packaging process. The packaging machine can flexibly switch packaging methods according to different packaging requirements.

[0064] In auxiliary mechanism 3, the incoming conveyor belt 301 is mounted on frame 1, upstream of the reversing conveyor belt 2011, and is used to transport bottles to the packaging area. The opening support assembly 302 is mounted on frame 1, located on one side of the incoming conveyor belt 301, and is used to open the bag opening, preparing for the bottle to be inserted into the bag. The opening support assembly 302 can consist of two opposing opening support plates, each connected to frame 1 via a drive device such as an electric push rod or cylinder. When it is necessary to open the bag opening, the drive device pushes the opening support plate to move, thereby opening the bag opening.

[0065] The pusher plate 303 is slidably mounted on the frame 1, located on the other side of the incoming conveyor belt 301. The pusher plate 303 is L-shaped. The pusher plate 303 is connected to a drive device, which can push the pusher plate 303 to slide horizontally. When the bottle is conveyed to the end of the incoming conveyor belt 301 and the opening of the packaging bag is opened by the mouth-opening assembly 302, the pusher plate 303 moves forward under the action of the drive device, pushing the bottle from the incoming conveyor belt 301 into the packaging bag.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An automated packaging machine for plastic bottles, characterized in that, The packaging mechanism includes a frame (1) and a packaging mechanism (2). The packaging mechanism (2) includes a reversing assembly (201) and a bagging assembly (202). The reversing assembly (201) includes a reversing conveyor belt (2011), a guide plate (2012), and a reversing plate (2013). The reversing conveyor belt (2011) is mounted on the frame (1) and is used to convey the bottle. The guide plate (2012) is connected to the frame (1) and located above the reversing conveyor belt (2011). The guide plates (2012) are arranged in pairs and are used to limit the lower sides of the bottle to guide the conveying direction of the bottle. The reversing plate (2013) is rotatably mounted on the frame (1) and located on the discharge side of the guide plate (2012). The bagging assembly (202) is located on the discharge side of the reversing plate (2013) and is used to put the bottle into a packaging bag. When the reversing plate (2013) rotates to a horizontal state, the reversing plate (2013) tilts from one side to the other to abut against the outside of the bottle opening so that the bottle tilts to one side under its own weight. The reversing plate (2013) can rotate alternately to a horizontal state to adjust its tilting direction so as to guide the bottle to tilt to both sides alternately. The packaging mechanism (2) further includes a leveling baffle (203) and a centering plate (204). The leveling baffle (203) is slidably mounted on the frame (1) and located on the discharge side of the reversing plate (2013). The leveling baffle (203) can block the bottle body passing through the reversing plate (2013) when it moves down, so as to adjust the bottle body posture to be perpendicular to the conveying direction. There are two centering plates (204) and both are slidably mounted on the leveling baffle (203). They are used to push the bottle body blocked by the leveling baffle (203) laterally to the middle of the reversing conveyor belt (2011). The reversing assembly (201) further includes a reversing rack (2014) and a reversing gear (2015). The reversing rack (2014) is laterally slidably disposed on the leveling baffle (203), and the reversing gear (2015) is disposed on the reversing plate (2013). The reversing rack (2014) can mesh with the reversing gear (2015) under the downward movement of the leveling baffle (203) to drive the reversing plate (2013) to rotate to a horizontal state and switch the tilt direction of the reversing plate (2013).

2. The automated packaging machine for plastic bottles according to claim 1, characterized in that, The reversing assembly (201) further includes a reversing base plate (2016), which has a reversing groove (2017) on the side near the direction of the bottle body. The reversing groove (2017) is a parallelogram. The reversing rack (2014) has a limiting post (2018), which is slidably disposed in the reversing groove (2017). Under the downward movement of the reversing plate (2013), the reversing rack (2014) can move to mesh with the reversing gear (2015) under the guidance of the reversing groove (2017). Under the upward movement of the reversing plate (2013), the reversing rack (2014) can disengage from the reversing gear (2015) under the guidance of the reversing groove (2017).

3. An automated packaging machine for plastic bottles according to claim 1, characterized in that, The bagging assembly (202) includes a support (2021), a bagging conveyor belt (2022), a lifting frame (2023), and a clamping unit (2024). The support (2021) is laterally slidably disposed on the frame (1). The bagging conveyor belt (2022) is disposed on the support (2021) and is used to receive the bottles conveyed by the reversing conveyor belt (2011). The lifting frame (2023) is slidably disposed on the frame (1) and located above the bagging conveyor belt (2022). The clamping unit (2024) is disposed on the lifting frame (2023) and is used to clamp the bottles on the bagging conveyor belt (2022). After the clamping unit (2024) clamps the bottle, the bagging conveyor belt (2022) can slide laterally to one side synchronously with the reversing conveyor belt (2011) to make way for the clamping unit (2024). The clamping unit (2024) can carry the bottle into the packaging bag below the bagging conveyor belt (2022) under the downward movement of the lifting frame (2023).

4. An automated packaging machine for plastic bottles according to claim 3, characterized in that, An adsorption plate (2025) is provided on the support (2021). The surface of the adsorption plate (2025) has several adsorption holes (2026). The adsorption plate (2025) is used to communicate with an external negative pressure unit. The adsorption plate (2025) is located below the bagging conveyor belt (2022). A plate feeding platform (2027) is provided on one side of the bagging conveyor belt (2022). The plate feeding platform (2027) is used to support the stacked partitions. A top plate (2028) for pushing the partitions upward is slidably provided on the plate feeding platform (2027). The adsorption plate (2025) can move to the top of the feeding platform (2027) under the lateral movement of the bracket (2021) and adsorb the partition. After the bagging conveyor belt (2022) moves back to the top of the packaging bag, the negative pressure is released so that the partition falls onto the top row of bottles inside the packaging bag.

5. An automated packaging machine for plastic bottles according to claim 4, characterized in that, A top support roller (2029) is rotatably mounted on the bracket (2021). The top support roller (2029) is located below the bagging conveyor belt (2022) and is used to support the belt surface of the bagging conveyor belt (2022).

6. An automated packaging machine for plastic bottles according to claim 3, characterized in that, The clamping unit (2024) includes two sets of symmetrically arranged clamping components. Each set of clamping components includes a sliding plate (20241) and a clamping plate (20242). The sliding plate (20241) is slidably disposed on the lifting frame (2023). Multiple clamping plates (20242) are slidably disposed on the sliding plate (20241). The two corresponding clamping plates (20242) on the two sets of clamping components are respectively used to press against the two ends of the bottle to clamp the bottle. A spring (20243) is disposed between the clamping plate (20242) and the sliding plate (20241). The spring (20243) is used to provide a force for the clamping plate (20242) to approach the bottle.

7. An automated packaging machine for plastic bottles according to any one of claims 1-6, characterized in that, The bagging assembly (202) further includes a sliding support plate (2030), a fixed support plate (2031), and a damping support plate (2032). The sliding support plate (2030) is slidably mounted on the frame (1), and the fixed support plate (2031) is fixedly mounted on the frame (1) to cooperate with the sliding support plate (2030) to open the bag opening. The damping support plate (2032) is slidably mounted on the frame (1) and the sliding contact surface between the damping support plate (2032) and the frame (1) is provided with a damping layer. The damping support plate (2032) is used to support the bottom of the bag to bear the weight of the bottle inside the bag.

8. An automated packaging machine for plastic bottles according to claim 1, characterized in that, It also includes an auxiliary mechanism (3), which includes an incoming material conveyor belt (301), a mouth-supporting assembly (302), and a pusher plate (303). The incoming material conveyor belt (301) is mounted on the frame (1) and is used to convey the bottle body. The mouth-supporting assembly (302) is mounted on the frame (1) and is used to open the bag mouth of the packaging bag. The pusher plate (303) is slidably mounted on the frame (1) and is used to push the bottle body on the incoming material conveyor belt (301) into the packaging bag that is opened by the mouth-supporting assembly (302).

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