A processing and conveying apparatus for plastic food packaging containers

Abstract

The application discloses a kind of processing and transporting equipment of food plastic packaging container, belong to plastic container processing and transporting technical field, including anti-tipping component, it includes processing and transporting equipment main body, the inside of the processing and transporting equipment main body is provided with the separation assembly for separating special-shaped plastic container, the side adsorption pull force generated by the wall gas film formed by main gas path and the reverse repulsive force generated by the positive pressure micro gas film formed by branch constitute automatic negative feedback dynamic balance system, make high-temperature soft bottle body stable in the gap of 10 to 20 μm from the surface of anti-collision pad, there is no entity hard contact throughout the journey, the balance point is actively moved to 10 to 20 μm interval, without waiting for clearance to be extremely small to generate repulsive force, avoid the risk that bottle body and flow guide groove produce suction dead phenomenon, eliminate the indentation, adhesion and sidewall scratch defect caused by traditional mechanical limiting, especially suitable for high-temperature special-shaped thin-walled container just demoulding, significantly improve finished product surface quality and yield.

Description

Technical Field

[0001] This invention relates to the field of plastic container processing and transportation technology, and more specifically, to a processing and transportation device for food plastic packaging containers. Background Technology

[0002] Food plastic packaging containers are widely used in beverage, food filling, and daily chemical packaging. Among them, irregularly shaped plastic containers with handles are usually molded by injection molding and blow molding in one piece. After the container is demolded, it is in a high temperature and soft state. It has thin walls, soft material, is easy to deform and stick. It has extremely high requirements for conveying, shaping, posture regularity and clean protection.

[0003] Currently, the industry generally uses traditional mesh belt conveyors for the downstream conveying of such irregularly shaped plastic containers. During the conveying process, the bottom of the irregularly shaped plastic container comes into large contact with the conveyor belt. The hot, soft container is prone to thermal adhesion to the belt surface, causing bottom indentations and deformation. At the same time, the existing traditional conveying method has high frictional resistance, and the container cannot rely on weak airflow to adjust its posture. It must rely on contact structures such as mechanical levers, limit blocks, and correction grippers to complete positioning and turning. The hard mechanical contact can easily cause scratches, whitening due to compression, stress deformation, and breakage to the hot, soft bottle body, thin-walled areas, and handle base. The product yield is difficult to guarantee, and it cannot meet the precision conveying requirements of hot, thin-walled irregularly shaped containers that have just been demolded.

[0004] In view of this, we propose a processing and transportation equipment for plastic packaging containers for food. Summary of the Invention

[0005] Technical problem to be solved: The purpose of this invention is to provide a processing and transportation equipment for plastic packaging containers for food, which solves the technical problems mentioned in the background art above.

[0006] Technical Solution: The present invention provides a processing and transportation device for food plastic packaging containers, including an anti-tipping component. The device includes a processing and transportation equipment body, an internal separation component for separating irregularly shaped plastic containers, an internal air curtain component for adsorbing irregularly shaped plastic containers, an internal anti-collision component for preventing collisions with the irregularly shaped plastic containers, and an internal negative pressure component for returning air to the air curtain. The straightening component includes a limiting component disposed on the separating assembly for straightening and limiting irregularly shaped plastic containers.

[0007] As an optional solution to the technical solution of this invention document, the main body of the processing and transportation equipment includes a frame, a conveyor belt is provided inside the frame, and irregularly shaped plastic containers are provided on the conveyor belt; The irregularly shaped plastic container includes a bottle body with a handle on the side. The conveyor belt is evenly provided with several micro-protrusions, which are made of ultra-high molecular weight polyethylene and have a mirror-polished top.

[0008] By adopting the above technical solution, setting micro-protrusions can significantly reduce the frictional resistance of lateral sliding and circumferential rotation.

[0009] As an optional solution to the technical solution of this invention, the separating component includes a first slide groove disposed inside the frame, a support disposed inside the first slide groove, a timing belt slidably connected to the support, a plurality of connecting plates evenly disposed on the timing belt, an arc-shaped partition fixedly connected to the side of the connecting plate away from the timing belt, a flow guide groove disposed on the arc-shaped partition, a gently flared opening disposed at the end of the arc-shaped partition away from the connecting plate, a flow-limiting edge fixedly connected to the arc-shaped partition, and a protective pad disposed on the flow-limiting edge.

[0010] As an optional solution to the technical solution of this invention, the first chute, the bracket, and the synchronous belt are all located above the side of the conveyor belt. The arc-shaped partition extends through the inner wall of the first chute to the top of the conveyor belt. The flow guide is located on the side of the arc-shaped partition near the bottle body. The height of the arc-shaped partition is lower than the height of the handle. The flow guide is a Coanda curved surface. The gently flared opening communicates with the flow guide. The flow limiting edge is located on the side of the arc-shaped partition near the bottle body. The flow guide is located between the two flow limiting edges. The end of the flow limiting edge away from the connecting plate is provided with a chamfer.

[0011] By adopting the above technical solution, the separation components can be set up to separate adjacent containers independently one by one.

[0012] As an optional solution of the technical solution in this invention document, the air curtain assembly includes an air pump disposed above the support, an air supply channel disposed inside the support, an air supply groove disposed on the side of the support near the arc-shaped partition, a plurality of air supply holes uniformly disposed on the synchronous belt, an regulating valve disposed inside the air supply holes, and an air curtain nozzle disposed inside the arc-shaped partition. The air supply hole extends through the synchronous belt and into the interior of the arc-shaped partition. The air supply channel communicates with the air supply hole through the air supply groove. The air supply hole communicates with the guide groove through the air curtain nozzle. The air curtain nozzle is a continuous slit nozzle. The air curtain nozzle and the guide groove are tangentially and smoothly connected.

[0013] By adopting the above technical solution, the air curtain component can limit adsorption and cool down the air.

[0014] As an optional solution to the technical solution of this invention, the anti-collision component includes two anti-collision pads disposed on an arc-shaped partition. The anti-collision pads have a pressure equalization air chamber inside. The arc-shaped partition has two diversion channels inside. The diversion channels have pressure reducing valves inside. The diversion channels have connecting grooves on their sides. The anti-collision pads have a plurality of micropores uniformly disposed on them.

[0015] As an optional solution to the technical solution of this invention, the anti-collision pad is made of ultra-high molecular weight polyethylene material, the micropores are micron-sized, the micropores are connected to the interior of the pressure equalization chamber, the connecting groove extends through the inner wall of the arc-shaped partition to the interior of the anti-collision pad, the air supply hole is connected to the connecting groove through a diversion channel, the pressure reducing valve is located at one end of the diversion channel near the air supply hole, the diversion channel is connected to the interior of the pressure equalization chamber through the pressure reducing valve, the anti-collision pad is located between the flow limiting edge and the guide groove, the thickness of the flow limiting edge and the protective pad is less than the thickness of the anti-collision pad, and the guide groove is located between the two anti-collision pads.

[0016] By adopting the above technical solution, the positive pressure micro-air film formed in the branch path generates a reverse repulsive force, which in turn generates a lateral adsorption pull force on the wall-attached air film formed in the main air path, thus forming an automatic negative feedback dynamic balance system.

[0017] As an optional solution of the technical solution in this invention document, the negative pressure assembly includes a vacuum pump disposed on the side of the frame, a negative pressure chamber disposed on the side of the vacuum pump, the vacuum pump being located on the side of the conveyor belt away from the synchronous belt, the negative pressure chamber being located between the conveyor belt and the vacuum pump, and the end of the negative pressure chamber away from the vacuum pump extending through the inner wall of the frame to the top of the conveyor belt.

[0018] As an optional solution to the technical solution of this invention, the limiting component includes a limiting block fixedly connected to the top of the arc-shaped partition. The limiting block has a cavity inside, and an elastic element is provided inside the cavity. A piston plate is slidably connected inside the cavity. An elastic pad is provided on the piston plate. A plurality of cooling holes are evenly opened on the elastic pad and the piston plate. A compression pump body is provided between the piston plate and the limiting block. An air intake channel is provided on the limiting block. A one-way valve is provided inside both the air intake channel and the cooling holes.

[0019] As an optional solution of the technical solution in this invention document, the limiting block is located at the top of the arc-shaped partition away from the gently flared end, the piston plate near the elastic pad extends through the inner wall of the cavity to the outside of the limiting block, the piston plate away from the elastic pad is elastically connected to the inner wall of the cavity through an elastic element, the air intake channel is located above the cavity, the air intake channel and the cooling hole are both connected to the interior of the compression pump body, the height of the limiting block is the same as the height of the handle, and the elastic pad is located on the side of the limiting block near the air curtain nozzle.

[0020] By adopting the above technical solution, the limiting component can be set to flexibly limit the container handle.

[0021] Beneficial effects: One or more technical solutions provided in this invention have at least the following technical effects or advantages: 1. The lateral adsorption pull generated by the attached gas film formed by the main gas path and the reverse repulsive force generated by the positive pressure micro gas film formed by the branch path constitute an automatic negative feedback dynamic balance system. This system keeps the high-temperature soft bottle body stably stopped within a gap of 10 to 20 μm from the surface of the anti-collision pad, with no physical hard contact throughout the process. The balance point is actively moved forward to the 10 to 20 μm range, eliminating the need to wait until the gap is compressed to a minimum before generating repulsive force. This avoids the risk of the bottle body and the guide channel being stuck together, and eliminates the defects such as indentations, adhesion and side wall scratches caused by traditional mechanical limiting. It is especially suitable for high-temperature irregular thin-walled containers that have just been demolded, significantly improving the surface quality and yield of the finished product.

[0022] 2. By arranging ultra-high molecular weight polyethylene micro-protrusions in an array on the surface of the conveyor belt, the full contact between the bottle bottom and the belt surface is transformed into multi-point discrete contact, which significantly reduces the frictional resistance of lateral sliding and circumferential rotation, while significantly reducing the contact area of ​​the bottle bottom at high temperatures, effectively avoiding thermal adhesion and bottom indentation; at the same time, the ultra-low friction characteristics of the micro-protrusions can ensure that the container can be driven to rotate and move laterally with weak aerodynamic force, providing a low-resistance bearing foundation for subsequent pneumatic orientation without the need for additional drive components.

[0023] 3. By utilizing the circumferentially flowing attached air film to apply a continuous tangential torque to the bottle body, the container is driven to rotate smoothly on the micro-protrusions. There is no need to set up additional mechanical levers, grippers or other contact drive components, which avoids scratching the hot and soft bottle body. This design greatly simplifies the equipment structure and reduces maintenance costs. At the same time, it utilizes the flexible characteristics of aerodynamics to achieve shock-free start-up and smooth deceleration, which is suitable for the mechanical properties of newly demolded products.

[0024] 4. Through a three-stage buffer energy absorption mechanism consisting of an elastic pad, a piston plate, and an elastic element, the handle is gradually decelerated when it rotates to the limit block, gradually absorbing and converting the rotational kinetic energy. This avoids stress whitening, deformation, and breakage at the base of the handle due to high-speed impact. This structure is fully adapted to the mechanical properties of the high-temperature soft product that has just been demolded. Combined with the dynamic balance of circumferential rotational force and elastic force, it achieves unified orientation locking, ensuring reliable connection of subsequent high-precision processes such as labeling, filling, and sealing.

[0025] 5. When the piston plate moves backward to compress the pump body, it drives airflow through the cooling holes to blow out, simultaneously achieving three functions: directional blowing to remove plastic debris from the base of the handle to ensure the cleanliness of the food contact surface; enhanced convection cooling of the protruding part of the handle to accelerate the uniform crystallization and shaping of irregular structures; one-way valve design to prevent backflow of dust from contaminating the container when the piston resets; and at the same time, the attached air film and positive pressure micro air film provide forced convection heat exchange to the side wall of the bottle throughout the process, continuously removing residual heat from demolding, reducing internal stress in the finished product, and reducing the risk of subsequent warping and cracking.

[0026] 6. By using an array of circular arc-shaped partitions that run synchronously with the conveyor belt, adjacent containers are separated one by one. This not only avoids collisions between bottles and snagging of handles during transport, but also ensures that each container is always within the effective range of a single air curtain. This achieves precise zoning control with one bottle, one partition, and one air curtain, significantly reducing the breakage rate during transport and improving the stability of continuous production line operation.

[0027] 7. A gently flared opening is set at the end of the guide channel to gradually increase the flow area of ​​the attached air curtain and reduce the flow velocity uniformly, avoiding right-angle flow interruption and instantaneous outward spray of airflow; in conjunction with the micro-negative pressure capture effect of the negative pressure chamber on the opposite side of the conveyor belt, the escaped airflow, blown debris and floating dust are directionally collected and merged into the negative pressure recovery system, avoiding turbulent dust pollution of the container opening in the chamber, maintaining orderly airflow inside the equipment, and ensuring a food-grade clean production environment.

[0028] 8. Through the synergistic effect of triple constraints—lateral adsorption positioning, bottom micro-protrusion support, and circumferential elastic limiting—the container maintains a uniform orientation and stable posture throughout the entire transport process, preventing tipping and deflection. It can be directly connected to subsequent automated processes such as high-precision labeling, filling, and sealing, significantly improving the overall production efficiency and product consistency. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A schematic diagram of the overall structure of equipment for processing and transporting plastic packaging containers for food.

[0031] Figure 2 This is a cross-sectional structural diagram of the main body of the processing and transportation equipment in the processing and transportation equipment for food plastic packaging containers.

[0032] Figure 3 A cross-sectional structural diagram of a separator component in a processing and transportation equipment for food plastic packaging containers.

[0033] Figure 4 Processing and transporting equipment for food plastic packaging containers Figure 3 Enlarged structural diagram at point A in the middle.

[0034] Figure 5 This is a cross-sectional schematic diagram of the anti-collision components in the processing and transportation equipment for food plastic packaging containers.

[0035] Figure 6 Processing and transporting equipment for food plastic packaging containers Figure 5 Enlarged structural diagram at point B.

[0036] Figure 7 This is a cross-sectional schematic diagram of a limiting component in a processing and transportation equipment for food plastic packaging containers.

[0037] Figure 8 This is a schematic diagram illustrating the structural relationship and fit between irregularly shaped plastic containers and curved partitions in the processing and transportation equipment for food plastic packaging containers.

[0038] Figure 9 A three-dimensional structural diagram of a partition component in a processing and transportation equipment for food plastic packaging containers.

[0039] Figure 10 This is a schematic diagram showing the structural relationship between the diversion channel and the air supply port in the processing and transportation equipment for food plastic packaging containers.

[0040] Explanation of the numbering in the diagram: 10. Main body of processing and transportation equipment; 101. Frame; 102. Conveyor belt; 103. Irregularly shaped plastic container; 1031. Bottle body; 1032. Handle; 11. Micro-protrusions; 12. Separator assembly; 121. First chute; 122. Support; 123. Synchronous belt; 124. Connecting plate; 125. Arc-shaped partition; 126. Flow guide channel; 127. Gently flared opening; 128. Flow limiting edge; 12 9. Protective pad; 13. Air curtain assembly; 131. Air pump; 132. Air delivery channel; 133. Air supply trough; 134. Air supply hole; 135. Regulating valve; 136. Air curtain nozzle; 14. Anti-collision assembly; 141. Anti-collision pad; 142. Pressure equalizing chamber; 143. Diverting channel; 144. Pressure reducing valve; 145. Connecting groove; 146. Micropore; 15. Negative pressure assembly; 151. Vacuum pump; 152. Negative pressure chamber; 20. Limiting component; 201. Limiting block; 202. Cavity; 203. Elastic element; 204. Piston plate; 205. Elastic pad; 206. Cooling hole; 207. Compression pump body; 208. Inlet passage; 209. One-way valve. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not 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 this invention.

[0043] In the description of this invention, 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 a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or a link; they can refer to a direct connection or an indirect connection 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 according to the specific circumstances.

[0044] Reference Figures 1 to 10 This invention provides a processing and transporting device for food-grade plastic packaging containers, including an anti-tipping component. The device includes a main body 10, a separating component 12 for separating irregularly shaped plastic containers 103, an air curtain component 13 for adsorbing the irregularly shaped plastic containers 103, an anti-collision component 14 for preventing collisions with the irregularly shaped plastic containers 103, and a negative pressure component 15 for returning air to the air curtain. The straightening component includes a limiting component 20 disposed on the separating component 12 for straightening and limiting the irregularly shaped plastic container 103.

[0045] Reference Figure 1 and Figure 2 This invention provides a processing and transportation equipment for food plastic packaging containers. The main body 10 of the processing and transportation equipment includes a frame 101, a conveyor belt 102 is arranged inside the frame 101, and irregularly shaped plastic containers 103 are arranged on the conveyor belt 102. The irregularly shaped plastic container 103 includes a bottle body 1031, a handle 1032 is provided on the side of the bottle body 1031, and a number of micro protrusions 11 are evenly provided on the conveyor belt 102. The micro protrusions 11 are made of ultra-high molecular weight polyethylene material and the top is mirror polished. Ultra-high molecular weight polyethylene micro-bumps 11 are arrayed on the surface of the conveyor belt 102, which transforms the full contact between the bottle bottom and the belt surface into multi-point discrete contact, significantly reducing the frictional resistance of lateral sliding and circumferential rotation, while significantly reducing the contact area of ​​the high-temperature bottle bottom, effectively avoiding thermal adhesion and bottom indentation; at the same time, the ultra-low friction characteristics of the micro-bumps 11 can ensure that the container can be driven to rotate and move laterally with weak aerodynamic force, providing a low-resistance bearing foundation for subsequent pneumatic orientation, without the need for additional drive components.

[0046] Reference Figures 2 to 10 This invention provides a processing and transportation device for food plastic packaging containers. The separating component 12 includes a first slide groove 121 disposed inside the frame 101. A support 122 is disposed inside the first slide groove 121. A timing belt 123 is slidably connected to the support 122. A plurality of connecting plates 124 are evenly disposed on the timing belt 123. An arc-shaped partition 125 is fixedly connected to the side of the connecting plate 124 away from the timing belt 123. A flow guide groove 126 is disposed on the arc-shaped partition 125. A gently flared opening 127 is disposed at the end of the arc-shaped partition 125 away from the connecting plate 124. A flow-limiting edge 128 is fixedly connected to the arc-shaped partition 125. A protective pad 129 is disposed on the flow-limiting edge 128. The first chute 121, the bracket 122, and the synchronous belt 123 are all located on the upper side of the conveyor belt 102. The arc-shaped partition 125 extends through the inner wall of the first chute 121 to the top of the conveyor belt 102. The flow guide 126 is located on the side of the arc-shaped partition 125 near the bottle body 1031. The height of the arc-shaped partition 125 is lower than the height of the handle 1032. The flow guide 126 is a Coanda curved surface. The gently flared opening 127 communicates with the flow guide 126. The flow limiting edge 128 is located on the side of the arc-shaped partition 125 near the bottle body 1031. The flow guide 126 is located between the two flow limiting edges 128. The end of the flow limiting edge 128 away from the connecting plate 124 is provided with a chamfer. At the end of the guide channel 126, a gently flared opening 127 is provided to gradually increase the flow area of ​​the attached air curtain and reduce the flow velocity uniformly, avoiding right-angle flow interruption and instantaneous outward spray of airflow. In conjunction with the micro-negative pressure trapping effect of the negative pressure chamber 152 on the opposite side of the conveyor belt 102, the escaped airflow, blown debris and floating dust are directionally collected and gathered into the negative pressure recovery system, avoiding turbulent dust pollution of the container opening inside the chamber, maintaining orderly airflow inside the equipment, and ensuring a food-grade clean production environment.

[0047] Reference Figures 2 to 10This invention provides a processing and transportation device for plastic packaging containers for food. The air curtain assembly 13 includes an air pump 131 disposed above a support 122. An air supply channel 132 is disposed inside the support 122. An air supply groove 133 is disposed on the side of the support 122 near the arc-shaped partition 125. A plurality of air supply holes 134 are evenly disposed on the synchronous belt 123. An regulating valve 135 is disposed inside the air supply hole 134. An air curtain nozzle 136 is disposed inside the arc-shaped partition 125. The air supply port 134 extends through the synchronous belt 123 and into the interior of the arc-shaped partition 125. The air supply channel 132 communicates with the air supply port 134 through the air supply groove 133. The air supply port 134 communicates with the guide groove 126 through the air curtain nozzle 136. The air curtain nozzle 136 is a continuous slit nozzle. The air curtain nozzle 136 and the guide groove 126 are tangentially and smoothly connected. The air supply groove 133 is elongated.

[0048] Reference Figures 5 to 10 This invention provides a processing and transportation device for plastic packaging containers for food. The anti-collision component 14 includes two anti-collision pads 141 disposed on an arc-shaped partition 125. The anti-collision pads 141 have a pressure equalization chamber 142 inside. The arc-shaped partition 125 has two diversion channels 143 inside. The diversion channels 143 have a pressure reducing valve 144 inside. The diversion channels 143 have a connecting groove 145 on their sides. The anti-collision pads 141 are uniformly provided with a plurality of micropores 146. The anti-collision pad 141 is made of ultra-high molecular weight polyethylene material. The micropores 146 are micron-sized and communicate with the interior of the equalizing air chamber 142. The connecting groove 145 extends through the inner wall of the arc-shaped partition 125 to the interior of the anti-collision pad 141. The air supply hole 134 communicates with the connecting groove 145 through the diversion channel 143. The pressure reducing valve 144 is located at one end of the diversion channel 143 near the air supply hole 134. The diversion channel 143 communicates with the interior of the equalizing air chamber 142 through the pressure reducing valve 144. The anti-collision pad 141 is located between the flow limiting edge 128 and the flow guiding groove 126. The thickness of the flow limiting edge 128 and the protective pad 129 is less than the thickness of the anti-collision pad 141. The flow guiding groove 126 is located between the two anti-collision pads 141. The lateral adsorption pull generated by the attached gas film formed by the main gas path and the reverse repulsive force generated by the positive pressure micro gas film formed by the branch path constitute an automatic negative feedback dynamic balance system. This system keeps the high-temperature soft bottle body 1031 stably stopped within a gap of 10 to 30 μm from the surface of the anti-collision pad 141 without any physical hard contact. The balance point is actively moved forward to the 10 to 30 μm range, eliminating the need to wait until the gap is compressed to a minimum before generating repulsive force. This avoids the risk of the bottle body 1031 being stuck between the guide channel 126 and the bottle body 1031. It also eliminates the defects of indentation, adhesion and side wall scratches caused by traditional mechanical limiting. It is especially suitable for high-temperature irregular thin-walled containers that have just been demolded, and significantly improves the surface quality and yield of the finished product.

[0049] Reference Figure 2 This invention provides a processing and transportation device for food plastic packaging containers. The negative pressure assembly 15 includes a vacuum pump 151 disposed on the side of the frame 101. A negative pressure chamber 152 is disposed on the side of the vacuum pump 151. The vacuum pump 151 is located on the side of the conveyor belt 102 away from the synchronous belt 123. The negative pressure chamber 152 is located between the conveyor belt 102 and the vacuum pump 151. The end of the negative pressure chamber 152 away from the vacuum pump 151 extends through the inner wall of the frame 101 to the top of the conveyor belt 102.

[0050] Reference Figures 7 to 10 This invention provides a processing and transportation device for food plastic packaging containers. The limiting component 20 includes a limiting block 201 fixedly connected to the top of the arc-shaped partition 125. The limiting block 201 has a cavity 202 inside, and an elastic element 203 is provided inside the cavity 202. A piston plate 204 is slidably connected inside the cavity 202. An elastic pad 205 is provided on the piston plate 204. A plurality of cooling holes 206 are evenly opened on the elastic pad 205 and the piston plate 204. A compression pump body 207 is provided between the piston plate 204 and the limiting block 201. An air inlet channel 208 is provided on the limiting block 201. A one-way valve 209 is provided inside both the air inlet channel 208 and the cooling holes 206. The limiting block 201 is located at the top of the arc-shaped partition 125 away from the end of the gently flared opening 127. The piston plate 204 extends through the inner wall of the cavity 202 to the outside of the limiting block 201. The piston plate 204 away from the elastic pad 205 is elastically connected to the inner wall of the cavity 202 through the elastic element 203. The air intake channel 208 is located above the cavity 202. The air intake channel 208 and the cooling hole 206 are both connected to the interior of the compression pump body 207. The height of the limiting block 201 is the same as the height of the handle 1032. The elastic pad 205 is located on the side of the limiting block 201 near the air curtain nozzle 136. The three-stage buffer energy absorption mechanism, consisting of elastic pad 205, piston plate 204 and elastic element 203, achieves gradual deceleration when the handle 1032 rotates to the limit block 201, gradually absorbing and converting the rotational kinetic energy, avoiding stress whitening, deformation and breakage at the root of the handle 1032 due to high-speed impact. This structure is fully adapted to the mechanical characteristics of the high-temperature soft product that has just been demolded, and the dynamic balance between circumferential rotation force and elastic force achieves unified orientation locking, ensuring reliable connection of subsequent high-precision processes such as labeling, filling and sealing.

[0051] This invention provides a processing and transportation device for food-grade plastic packaging containers, the working principle and usage process of which are as follows: First, the drive mechanism inside the device is started, which drives the conveyor belt 102 and the synchronous belt 123 to run synchronously and at the same speed. The arc-shaped partition 125, which is fixed to the synchronous belt 123 by the connecting plate 124, will rotate in a ring along the first slide groove 121 inside the frame with the synchronous belt 123. The arc-shaped partition 125 located above the conveyor belt 102 is in the working section. The arc-shaped partition 125 in the working section corresponds one-to-one with the work position of the conveyor belt 102. The two are relatively stationary without slippage, ensuring the positional accuracy of container separation and orientation. Simultaneously, the air pump 131 is activated, delivering food-grade clean compressed air, filtered through three stages, into the air supply channel 132 inside the support 122, and then continuously supplying air to the working section through the elongated air supply trough 133; when the arc-shaped partition 125 moves to the working section, the air supply hole 134 on the plate automatically aligns and connects with the air supply trough 133, and the airflow is divided into two paths after passing through the preset pressure of the regulating valve 135: One is the main air path, which sends the airflow into the slit-type air curtain nozzle 136 and sprays it onto the surface of the guide groove 126 at a tangential angle. The airflow flows along the curved wall to form a continuous and uniform wall-attached air film. The flow-limiting edges 128 on the upper and lower sides and the anti-collision pad 141 prevent the air film from spreading in the upward and downward directions, reduce momentum loss, and enhance adsorption stability. The other branch airflow enters the diversion channel 143, is depressurized twice by the pressure reducing valve 144, and is sent into the pressure equalization air chamber 142 inside the anti-collision pad 141 through the connecting groove 145. Finally, it seeps out at a low speed and uniformly through the micron-level micropores 146 to form a positive pressure buffer micro air film on the surface of the anti-collision pad 141. It also enables the vacuum pump 151 to start synchronously, forming a stable micro-negative pressure in the negative pressure chamber 152 on the opposite side of the conveyor belt 102, thus creating a continuous lateral airflow trapping field. The high-temperature irregularly shaped plastic container that has just been demolded then falls from the discharge end of the molding machine onto the surface of the conveyor belt 102, where it is supported by the array of ultra-high molecular weight polyethylene micro-protrusions 11 on the conveyor belt 102. This transforms the full contact between the bottle bottom and the belt surface into multi-point discrete contact, which significantly reduces the frictional resistance of lateral sliding and circumferential rotation, and also reduces the contact area of ​​the high-temperature bottle bottom, thus avoiding thermal adhesion and bottom indentation. The containers fall orderly between two arc-shaped partitions 125, with adjacent partitions 125 separating each container independently. This prevents containers from colliding or snagging during transport and ensures that each container remains within the effective range of a single air curtain. The adhering air film on the surface of the guide channel 126 forms a stable low-pressure zone between the bottle body 1031 and the guide channel 126, generating a continuous lateral adsorption pull. This smoothly overcomes the rolling friction resistance of the micro-protrusions 11, causing the bottle body 1031 to slide slowly and uniformly laterally towards one side of the arc-shaped partition 125. When the bottle body 1031 approaches within a few millimeters of the surface of the anti-collision pad 141, the positive pressure micro-air film seeping from the micropores of the anti-collision pad 141 generates a reverse repulsive force, forming an automatic negative feedback balance with the external negative pressure adsorption force. Simultaneously, the closer the bottle body 1031 is to the pad surface, the stronger the repulsive force becomes. Ultimately, the two dynamically balance, causing the bottle body 1031 to stably stop at a distance of 10 to 30 μm from the surface of the anti-collision pad 141. The position provides a stable repulsive force component even when the gap is large, allowing the equilibrium point of adsorption and repulsion to appear earlier in the 10 to 30 μm range, without having to wait until the gap is compressed to a minimum to generate repulsion. This avoids the risk of the bottle body 1031 and the guide channel 126 being stuck together. There is no physical hard contact throughout the process, avoiding indentation, adhesion, and side wall scratches on the high-temperature soft bottle body 1031. Furthermore, the attached gas film and positive pressure micro gas film will also conduct forced convection heat exchange with the side wall of the bottle body 1031, continuously removing residual heat from demolding, accelerating the crystallization and shaping of the side wall of the bottle body 1031, reducing the internal stress of the finished product, and reducing the risk of subsequent warping and cracking. Simultaneously, the circumferentially flowing attached air film applies a continuous tangential torque to the bottle body 1031, driving the container to rotate smoothly on the micro-protrusions 11, causing the handle 1032 to rotate synchronously with the bottle body 1031, gradually moving towards the limiting block 201; the low friction characteristics of the micro-protrusions 11 ensure that the rotation can be driven by weak aerodynamic force, without the need for additional mechanical levers or other structures, thus avoiding scratching the bottle body; when the handle 1032 rotates to the position of the limiting block 201, the front end of the handle 1032 will first contact the elastic pad 205, compressing the elastic pad 205 and driving the piston plate 204 to slide into the cavity 202, compressing the elastic element 203 to absorb the rotational kinetic energy, achieving gradual buffering and deceleration, avoiding the stress whitening, deformation and breakage of the handle 1032 root caused by rapid impact, and is suitable for high-temperature soft products that have just been demolded; During the backward movement of the piston plate 204, the air inside the pump body 207 is compressed and expelled unidirectionally through the cooling hole 206. This directional blowing removes plastic debris from the base of the handle 1032 and enhances the convective cooling of the protruding part of the handle 1032, accelerating the uniform shaping of the irregular structure. The one-way valve 209 in the air intake channel 208 ensures that air is drawn in from the top only when the piston is reset, preventing backflow of dust that could contaminate the container. When the handle 1032 is in the limit position, the container stops rotating when the rotational force and elastic force reach equilibrium, and the circumferential orientation is locked. Combined with lateral suction force and bottom support, the container's posture is completely fixed, preventing tipping or deflection during transport. This allows for direct connection to subsequent high-precision labeling, filling, and sealing processes, enabling uniform processing of the container. After orientation, the container, arc-shaped partition 125, and conveyor belt 102 remain relatively stationary and are conveyed forward synchronously. Throughout the process, the container maintains a balanced interval and uniform orientation. The air curtain and microporous air permeation continuously cool and clean the side walls and handle area of ​​the bottle. The attached air curtain flows along the guide groove 126 to the end. When it passes through the gently flared opening 127, the flow area gradually increases, and the airflow velocity decreases uniformly. There will be no right-angle interruption or instantaneous outward jet of airflow. The escape airflow diffused outward from the air curtain, as well as the plastic debris and dust blown off, are oriented and captured by the micro-negative pressure of the negative pressure chamber 152 on the opposite side of the conveyor belt 102 and flow into the negative pressure recovery system. This prevents the diffused airflow from forming turbulence in the chamber and raising dust to contaminate the container opening, while maintaining the orderly flow of airflow inside the equipment. When the container is transported to the end of the working section, the arc-shaped baffle 125 will turn along the first chute 121 with the synchronous belt 123 and enter the return section, so that the corresponding air supply hole 134 will gradually detach from the air supply groove 133. The main air curtain and the buffer seepage will decrease synchronously and smoothly, the lateral adsorption force will be linearly released, and the container will smoothly detach from the limit, so that the container can be sent to the next processing step with the subsequent conveyor belt 102. This cycle can continuously process and transport the container. The gently flared opening 127 and chamfer at the end can prevent the container from being scratched when storing materials.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A processing and transporting device for food-grade plastic packaging containers, characterized in that: include The anti-tipping component includes a processing and transport equipment body (10), the processing and transport equipment body (10) having a partition component (12) for separating irregularly shaped plastic containers (103) inside, an air curtain component (13) for adsorbing irregularly shaped plastic containers (103) inside, an anti-collision component (14) for preventing irregularly shaped plastic containers (103) from colliding inside the partition component (12), and a negative pressure component (15) for returning air to the air curtain inside the processing and transport equipment body (10). The regulating component includes a limiting component (20) disposed on the separating component (12) for regulating and limiting the irregularly shaped plastic container (103).

2. The processing and transportation equipment for food-grade plastic packaging containers according to claim 1, characterized in that: The main body (10) of the processing and transportation equipment includes a frame (101), a conveyor belt (102) is provided inside the frame (101), and an irregularly shaped plastic container (103) is provided on the conveyor belt (102). The irregularly shaped plastic container (103) includes a bottle body (1031), a handle (1032) is provided on the side of the bottle body (1031), and a number of micro protrusions (11) are evenly provided on the conveyor belt (102). The micro protrusions (11) are made of ultra-high molecular weight polyethylene material and the top is mirror polished.

3. The processing and transportation equipment for food-grade plastic packaging containers according to claim 2, characterized in that: The separation component (12) includes a first slide groove (121) disposed inside the frame (101). A bracket (122) is disposed inside the first slide groove (121). A timing belt (123) is slidably connected to the bracket (122). A plurality of connecting plates (124) are evenly disposed on the timing belt (123). An arc-shaped partition (125) is fixedly connected to the side of the connecting plate (124) away from the timing belt (123). A flow guide groove (126) is disposed on the arc-shaped partition (125). A gently flared opening (127) is disposed at the end of the arc-shaped partition (125) away from the connecting plate (124). A flow-limiting edge (128) is fixedly connected to the arc-shaped partition (125). A protective pad (129) is disposed on the flow-limiting edge (128).

4. The processing and transportation equipment for food-grade plastic packaging containers according to claim 3, characterized in that: The first chute (121), bracket (122) and synchronous belt (123) are all located above the side of the conveyor belt (102). The arc-shaped partition (125) extends through the inner wall of the first chute (121) to the top of the conveyor belt (102). The flow guide (126) is located on the side of the arc-shaped partition (125) near the bottle body (1031). The height of the arc-shaped partition (125) is lower than the height of the handle (1032). The flow guide (126) is a Coanda curved surface. The gently flared opening (127) communicates with the flow guide (126). The flow limiting edge (128) is located on the side of the arc-shaped partition (125) near the bottle body (1031). The flow guide (126) is located between the two flow limiting edges (128). The end of the flow limiting edge (128) away from the connecting plate (124) is provided with a chamfer.

5. The processing and transportation equipment for food-grade plastic packaging containers according to claim 3, characterized in that: The air curtain assembly (13) includes an air pump (131) disposed above the support (122). The support (122) has an air supply channel (132) inside. The support (122) has an air supply groove (133) on the side near the arc-shaped partition (125). A plurality of air supply holes (134) are evenly disposed on the synchronous belt (123). The air supply holes (134) have a regulating valve (135) inside. The arc-shaped partition (125) has an air curtain nozzle (136) inside. The air supply hole (134) extends through the synchronous belt (123) and into the interior of the arc-shaped partition (125). The air supply channel (132) communicates with the air supply hole (134) through the air supply groove (133). The air supply hole (134) communicates with the guide groove (126) through the air curtain nozzle (136). The air curtain nozzle (136) is a continuous slit nozzle. The air curtain nozzle (136) and the guide groove (126) are tangentially and smoothly connected.

6. The processing and transportation equipment for food-grade plastic packaging containers according to claim 5, characterized in that: The anti-collision component (14) includes two anti-collision pads (141) disposed on an arc-shaped partition (125). The anti-collision pads (141) have a pressure equalization air chamber (142) inside. The arc-shaped partition (125) has two diversion channels (143) inside. The diversion channels (143) have pressure reducing valves (144) inside. The diversion channels (143) have connecting grooves (145) on their sides. The anti-collision pads (141) have a number of micropores (146) evenly disposed on them.

7. The processing and transportation equipment for food-grade plastic packaging containers according to claim 6, characterized in that: The anti-collision pad (141) is made of ultra-high molecular weight polyethylene material. The micropores (146) are micron-sized and communicate with the interior of the equalizing air chamber (142). The connecting groove (145) extends through the inner wall of the arc-shaped partition (125) into the interior of the anti-collision pad (141). The air supply hole (134) communicates with the connecting groove (145) through the diversion channel (143). The pressure reducing valve (144) is located in the diversion channel. The channel (143) is located at one end near the air supply port (134). The diversion channel (143) is connected to the interior of the equalizing air chamber (142) through the pressure reducing valve (144). The anti-collision pad (141) is located between the flow limiting edge (128) and the flow guide groove (126). The thickness of the flow limiting edge (128) and the protective pad (129) is less than the thickness of the anti-collision pad (141). The flow guide groove (126) is located between the two anti-collision pads (141).

8. The processing and transportation equipment for food-grade plastic packaging containers according to claim 6, characterized in that: The negative pressure assembly (15) includes a vacuum pump (151) disposed on the side of the frame (101). A negative pressure chamber (152) is disposed on the side of the vacuum pump (151). The vacuum pump (151) is located on the side of the conveyor belt (102) away from the synchronous belt (123). The negative pressure chamber (152) is located between the conveyor belt (102) and the vacuum pump (151). One end of the negative pressure chamber (152) away from the vacuum pump (151) extends through the inner wall of the frame (101) to the top of the conveyor belt (102).

9. The processing and transportation equipment for food-grade plastic packaging containers according to claim 8, characterized in that: The limiting component (20) includes a limiting block (201) fixedly connected to the top of the arc-shaped partition (125). The limiting block (201) has a cavity (202) inside. An elastic element (203) is provided inside the cavity (202). A piston plate (204) is slidably connected inside the cavity (202). An elastic pad (205) is provided on the piston plate (204). A plurality of cooling holes (206) are evenly opened on the elastic pad (205) and the piston plate (204). A compression pump body (207) is provided between the piston plate (204) and the limiting block (201). An air intake channel (208) is provided on the limiting block (201). A one-way valve (209) is provided inside both the air intake channel (208) and the cooling holes (206).

10. The processing and transportation equipment for food plastic packaging containers according to claim 9, characterized in that: The limiting block (201) is located at the top of the arc-shaped partition (125) away from the gently flared opening (127). The piston plate (204) extends through the inner wall of the cavity (202) to the outside of the limiting block (201) at the end near the elastic pad (205). The piston plate (204) away from the elastic pad (205) is elastically connected to the inner wall of the cavity (202) through the elastic element (203). The air intake channel (208) is located above the cavity (202). The air intake channel (208) and the cooling hole (206) are both connected to the interior of the compression pump body (207). The height of the limiting block (201) is the same as the height of the handle (1032). The elastic pad (205) is located on the side of the limiting block (201) near the air curtain nozzle (136).

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