In-Mold Labelling for Permanent Graphics

An automated device for labeling barrel lid covers during injection molding to eliminate manual labeling after molding. The device has a marking device to apply labels directly onto the molded lid inside the mold before it's ejected. This eliminates the need for separate labeling equipment and manual labor.

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In-mold labeling machine for producing labeled products using blow molding. The machine has a label supply mechanism, conveyor, labeling mechanism, and blow molding mechanism. The labeling mechanism delivers labels using negative pressure adsorption and an upside-down delivery part. This frees space below for the conveyor. The mold has a clamp to hold the product during blow molding.

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Automatic labeling of conical plastic containers on a linear filling machine that provides accurate and efficient labeling without cutting cylindrical labels to fit. The labeling system uses a molding machine, conveyor, temporary storage, transfer device, and belt with a preformed label. The label is shaped into multiple fan-shaped sectors that can be individually fed into the mold to line the inner walls. In-mold processing connects the label to the pressed sheet to form a unit. This allows precise labeling without cutting cylindrical labels to fit conical containers.

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Automated barrel labeling machine for in-mold labeling of plastic barrels during injection molding to improve efficiency and quality compared to manual labeling. The machine has a standard bin with vertical rails and a horizontal bar to hold and move the labels. A vertical mechanism above the bin rotates the labels. The barrels are positioned under the labels and the vertical mechanism lowers the labels onto the barrels. The machine integrates with injection molding machines to label the barrels during molding. This eliminates separate labeling steps after molding.

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Manufacturing an injection-moulded article with an in-mold label. The article comprises a first mold comprising a surface with an injection hole, applying an in-mold label onto the surface of the first mold such that the through-hole of the in-mold label is aligned with the injection hole of the first mold, providing a second mold in proximity to the first mold such that at least a portion of the in-mold label is arranged between the first mold and the second mold, and injecting a molten material through the injection hole of the first mold and through the through-hole of the in-mold label into an empty space between the first mold and the second mold.

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Retractable label fixing system for thermoplastic injection molds that allows in-mold labeling without hot runner systems or damaging labels. The system uses a retractable pin to secure the label inside the mold cavity during injection. The label is made of the same thermoplastic material as the product and is positioned in the mold. A pin retracts into the mold when the label is in place, preventing movement during injection. This avoids label shifting, adhesion issues, and damage during mold filling.

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A method to manufacture labeled containers with in-mold labels that prevents stretching and deformation of the labels during container production. The method involves adjusting the label orientation and container dimensions to match the blowing gas pressure and preform size. When blowing air into the preform to expand it, if the container is larger in one direction than the preform, make that direction coincide with the high tensile strength direction of the label. This prevents the label from stretching in that direction. If the container is similar in size to the preform in all directions, make the vertical direction match the high tensile strength direction. This prevents vertical stretching. By matching label and container expansion directions, it reduces label distortion when the container is blown into shape.

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Cover structure for in-mold labeling of products like bottles that allows separate labeling of the sides and bottom without needing continuous labels. The structure has a labeling cover with a bottom cover plate connected by discontinuous grooves. The labeling cover has a side label anti-collision feature to prevent labels moving during molding. The bottom cover has a pouring section to prevent label collision. This allows separate side and bottom labels with different patterns or absence of labels without needing continuous labels. The discontinuous grooves allow side/bottom distinction and prevent labels merging. The anti-collision feature prevents side label movement during molding. The pouring section prevents bottom label collision.

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A method of producing injection molded containers with labels that can be easily recycled. The label is inserted into the mold cavity, a core is partially inserted to stretch the label, then the plastic is injected to form the container with the label firmly attached. This mould design allows the label to be positioned and stretched before the container is molded, preventing detachment during use. The container and label are made of the same material, allowing easy recycling.

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In-mold labeling method for blow molded bottles that allows accurate placement of labels around the entire bottle surface using a specific blow mold design. The method involves injecting the plastic into a preform mold, then transferring it to a blow mold with a chute connecting the bottle cavity to an external extrusion part. The extrusion part slides between the upper and lower molds during blow molding to cover the entire bottle surface with the label material. This allows the label to be accurately formed around the entire bottle shape during molding, avoiding offsetting or gaps compared to post-molding labeling.

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In-mold labeling device for efficiently and flexibly labeling products during injection molding. The device has a compact design with modular components that can be arranged in a customizable layout. It allows labeling of products with complex shapes and sizes by moving the labeling modules around the mold. The device has an injection molding machine, die sticking machine, guide mechanism, marking mechanism, externally connected object mechanism, and label delivery mechanism. The label delivery mechanism moves the label around the mold using a drive unit and receiver plate. The modular design enables flexible arrangement of the labeling modules to adapt to different product shapes.

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Injection mold for producing spray covers with customized bottom and side labels that can be separately designed and materialized. The mold has a multi-cavity assembly between fixed plates for molding the covers. Plunger-type ejectors separate the molded covers. The mold design allows injection of material into the cover cavities first, preventing it from moving the labels during molding. This enables separate labeling of bottom and side portions.

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Injection mold with integrated labeling feature to improve aesthetics and efficiency of injection molded products. The mold has a fixed and moving template that form the cavity. Instead of applying labels after molding, a detachable label insert is placed inside the mold to directly form the label on the product during injection. This eliminates issues of misaligned, warped, or crooked labels that can occur from manual application. It also avoids the need for separate labeling equipment and materials, reducing costs and improving aesthetics.

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An automatic labeling system for injection molded internal labels in plastic containers. The system places labels inside the mold before injection to avoid separate labeling steps. A label grabber captures labels and moves them to the mold. An electrostatic device spreads the labels evenly on the mold surface. This ensures consistent labeling during injection molding.

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Injection molding machine with integrated label embedding to avoid label issues like peeling, wrinkling, and curling. The machine has a horizontal axis with a rotating mechanism that moves an arm with an end effector to insert and retrieve labels. The labels are embedded during the molding process, providing a smooth joint between the label and product. This avoids labeling issues like adhesive failure, wrinkling, warping, and dropping when encountering temperature, moisture, or other conditions. The labels are formed simultaneously with the product, improving quality and appearance.

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Molding customized labels directly into rubber products like parking curbs to prevent peeling and ensure long-term label visibility. The labels are made from rubber-based materials with rough backings for better bonding. They are printed using UV-stable inks and inserted into the mold during rubber compression. This integrates the label into the product, protecting the edges and preventing peeling. Alternatively, a recessed pocket is molded into the product to hold the label. The labels are sized to fit snugly in the pocket and are protected by its edges. The integrated labels are bonded strongly to the rubber product, providing durability and resistance to wear and vandalism.

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High-speed multi-axis in-mold labeling machine system for automated labeling of injection molded products. The system uses a servo-controlled multi-axis mechanical guide rail to move a label pick-up panel and labeling fixture between the injection molding machine and a label supply. This allows picking up labels from the supply, transporting them to the mold, and attaching them during molding for in-mold labeling. The rail's X, Y, Z motion allows precise positioning. The rail also has a vacuum-suction label taking mechanism on the supply side. The labeling fixture has a compatible vacuum plate to match the supply's storage mechanism. The rail moves the fixture and pick-up panel to the supply for new label retrieval after molding.

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An automated production line for anti-counterfeit labels that enables efficient and convenient integrated molding, feeding, printing, and discharge of labels. The line features a feeding forming seat with a vibrating plate on each side, a profile seat with a hot-melt molding box, a printing station, a lifting support, and a discharge frame. The feeding forming seat has a feeding bracket, rail seats, and a material seat. The molding box has a cylinder and is electrically connected to a controller. This integrated setup allows simultaneous molding, feeding, printing, and discharge of labels in an automated production line.

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Milk tea cup automatic in-mold labeling machine that improves efficiency and automation by using a manipulator with a fixture to pick and place labeled cups from an injection molding machine. The labeling machine has devices to position, suction, and scan the labels. This allows simultaneous label placement and product removal compared to sequential manual labeling. The manipulator moves the fixture with suction nozzle and scanner to accurately label and retrieve the cups.

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Intelligent in-mold labeling machine for plastic containers that labels containers as they are being molded, eliminating the need for separate labeling after cooling. The machine has a liftable frame with a moving table that can access the mold cavities. It uses linear guides and an arm with vacuum suction cups to pick up labels and feed them into the mold cavities as the containers are formed. The machine has coordinated motion control to precisely position the arm and table for label insertion.

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A plastic thermoforming machine that integrates labeling into the molding process instead of applying labels post-molding. The machine has an in-mold label placement mechanism that feeds and moves labels during mold closing. This eliminates the need for separate labeling steps and provides consistent label quality and hygiene. The mechanism includes a label feeding bin, a suction nozzle, and a moving manipulator that connects to the mold dies.

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A method and device for labeling prefabricated cups without damaging the contents or cup film during the process. The method involves sleeving a label onto a mold, then moving the label vertically to cover a upright preformed cup. This prevents gravity from causing contents to settle and deform the label. The device uses a conveyor chain with mold stations, a labeling machine, and a label shifting device. The mold stations sleeves labels, then moves to a lower station with the shifting device. The shifting device pushes the label up to cover the upright cup.

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Efficient and fast method for manufacturing labeled polymer products like containers, trays, and feeders with improved cycle times and reduced costs. The method involves electrostatically charging labels made of thin polymer films to adhere them to the molded polymer product. This eliminates the need for adhesives or other bonding agents. The label is charged by an electrode as it moves through the charging station. The charged label then attracts to the molded product as it exits the mold. This enables rapid and precise label placement without additional steps or materials. The labeled product is removed and the mold is ready for the next cycle. The electrostatic charging allows quick and consistent label attachment while avoiding issues like misalignment, wrinkling, or detaching during handling.

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An integrated molding device for efficiently attaching adhesive label paper to plastic bottles during the injection molding process. The device has a storage unit for holding the label paper, a suction unit to move the paper into the mold, a cutting unit to trim the paper after molding, and a clamping unit to secure the bottle. This allows labeling before mold closure, quick entry into the mold, automatic trimming, and automated bottle output.

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Plastic cover labeling production line with a movable label clamping mechanism to improve label placement accuracy and efficiency compared to manual or mechanical methods. The line has a label feeder, injection molding machine, and a movable label clamping mechanism. The clamping mechanism can slide and lift/lower between the feeder and molding machine using a multi-axis moving mechanism. This allows precise positioning of the labels onto the molded covers.

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A thermoforming machine and in-mold labeling, conveying, and packing production line that allows high-speed production of disposable plastic containers with in-mold labeling and stacking capabilities. The thermoforming machine has two lower dies that can move left and right as well as up and down, allowing in-mold labeling and stacking in three actions per mold. The production line uses a multi-function labeling robot and stacking conveyor that can handle multiple container sizes and shapes. This enables automated labeling, stacking, and packaging of disposable plastic containers without requiring separate machines for each mold.

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Decorating molded thermoplastic parts with labels in a thermoforming machine in a way that allows reliable and safe stacking of the decorated parts. The decorating device has a label storage magazine, a label transfer with grippers, and a formatting mechanism. The labels are separated from the stack, attached to the parts as they exit the mold, then reformatted for stacking. This prevents sticking and improves stackability compared to placing decorated parts directly on a belt.

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An in-mold labeling robot for simultaneously forming closed containers and attaching labels during the process. The robot has a movable frame with a suction cup to attract labels. The label on the suction cup is positioned to attach to the molded container as it forms. This integrates labeling into the molding process rather than applying labels after.

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Process for manufacturing plastic containers with double-curved surfaces that have labels applied using in-mold labeling (IML) to prevent issues like material intrusion and discontinuities. The process involves placing the IML label with specific channels in the mold cavity and injecting molten plastic from the bottom to form the container bottom first. This holds the label in place during filling and prevents material intrusion. The mold has a groove at the bottom to receive the label edge. The channels on the label align with the channels on the mold surface. This allows the plastic to flow between them and fill the interior without intruding under the label.

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Injection molding machine with in-mold label embedding to improve product efficiency by eliminating separate labeling steps. The machine has a rotating mechanism that moves a mold insertion arm and label applicator simultaneously. The mechanism connects to a motor and slides horizontally. This allows the mold and label to be inserted and positioned together in the mold. The label applicator rotates with the insertion arm to apply the label to the molded part. This avoids separate labeling steps and reduces production time compared to applying labels after molding.

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In-mold label injection device that allows label insertion inside a product without damage or separation. The device has separate first and second injection machines. The first machine injects the product with a label attached. The label is fixed inside using an air groove. The first machine's lower core becomes the second machine's upper core, so the labeled product is directly injected again without separating. This inserts the label between the two injection materials.

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In-mold labeling method and injection molding system that improves production efficiency by allowing simultaneous part ejection, labeling, and part removal from both mold halves. The method involves ejecting molded parts from one side while the mold opens, allowing labeling and part retrieval from the other side. This prevents collisions between the ejector and labeling robot. The system has linked ejectors, mold clamping, and labeling robot to coordinate simultaneous actions.

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A method to make highly transparent in-mold labels for PET injection molding that provides good bonding strength and transparency. The method involves: (a) preparing a blank label with a clear top layer and a lower layer coated with a thermoplastic; (b) fusing the blank label to a fusion membrane using heat and pressure; (c) cutting the fused label into the desired shape; (d) applying static elimination to remove any remaining charge; (e) loading the labeled fusion membrane into the mold; (f) injecting molten PET into the mold to encapsulate the label; (g) cooling and ejecting the molded part. The thermoplastic coating on the label adheres to the PET during molding, while the clear top layer maintains transparency.

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In-mold labeling device and method for rapid labeling of plastic containers using in-mold labeling technique. The device has a frame to hold labels, movably connected to a robot that picks up the labels and places them in the mold. The robot has a displaceable operation frame with a flexible stainless steel sheet for attaching the label to the mold. This allows labeling during the molding process for higher label firmness compared to post-molding labeling.

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An anti-lifting labeling machine for embedding labels into products to prevent easy removal and copying. The machine has a running device, a molding die-cutting device, and a label setting device. The die-cutting device punches concave molds into the product sides. The label setting device places labels into the molds. This embeds the labels instead of attaching them, making it harder to remove and copy.

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Device and method for decorating thermoformed parts with labels that allows higher labeling speeds and flexibility compared to conventional labeling methods. The device has a label magazine, label transfer unit, erecting/formatting unit, and transfer unit. The key features are: 1. Smaller number of label positions in the magazine, transfer, and formatting units compared to the mold cavities. This allows multiple label passes to match the molding cycle. 2. Label transfer unit with switchable grippers to selectively leave some labels in the stack. This provides flexibility in the number of labels transferred per pass. 3. Formatting unit adjusts spacing and transfer points to match the transfer unit position. This allows X or W shaped mold layouts.

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In-mold labeling technique for plastic containers with improved label adhesion and reduced energy consumption compared to traditional methods. The label is applied inside the mold before the container is formed. The label structure consists of an upper film layer, a lower film layer, and a primer layer between them. The upper and lower film layers are co-extruded with specific compositions to achieve better adhesion to the container at lower temperatures. The upper film layer contains polyethylene wax with a molecular weight of 1350-2000 and a density of 0.92 g/cm3. The lower film layer contains EVA with a VA content of 8 wt%. The label is also treated to increase surface roughness. The mold design has raised label seats with a minimum height difference between adjacent seats. This prevents stress concentration and improves label integrity.

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Two-shot injection molding method for label production that allows over-molding of electronic labels to improve sealing and prevent through-holes. The method involves using a positioning mold with movable locating pins to position the label carrier. After molding, the pins retract and exit the carrier, allowing plastic fluid to fill the gaps and surround the carrier completely. This prevents through-holes in the final molded label. The pins also form mounting holes in the corners. The mold has separate injection and feed channels for the label carrier and plastic fluid. The mold closes, molten plastic is injected, and the pins retract. The plastic fluid fills the gaps and surrounds the label carrier to make a sealed molded label.

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Label feeding and forming device for high-speed in-mold labeling of injection molded products. The device has a label supply mechanism that can both dispense and form the labels inside the molding machine. This allows simultaneous labeling of both the upper and lower surfaces of the molded product without external labeling steps. It also avoids the need for separate external label dispensers and improves efficiency compared to multi-step labeling processes.

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An in-mold labeling device for efficiently labeling long, cylindrical products like glass bottles. The device has a label feeding mechanism, label forming assemblies, and a manipulator that moves the assemblies to match the mold cavities. The mold has a smaller diameter buffer section followed by a wider label placement section. This allows the label to expand and adhere to the product without wrinkling. The buffer section prevents excessive label length. The mold also has grooves for positioning the label. This allows multiple cavities with narrow spacing without needing a wider label feeder. The assemblies have gas channels to inflate the labels. This improves adhesion on long, narrow products.

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Intelligent identification automatic in-mold labeling production system for high-speed, accurate, and compact in-mold labeling of plastic products. The system uses a rotating pick-and-place mechanism that moves horizontally between a standard cassette and fixed mold. An intelligent positioning unit helps the rotating mechanism accurately align the label during transfer to ensure label placement accuracy. The horizontal rotation changes the label's movement path, reducing equipment size compared to linear transfer. An electrostatic adsorber picks up the label. The rotating mechanism moves back and forth to reciprocate the label 180 degrees, placing it in the mold. Intelligent positioning ensures accurate label transfer.

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An in-mold labeling system for plastic parts with reduced equipment size and improved efficiency compared to traditional systems. The system uses a rotating label picker that moves between a storage cassette and the fixed mold. The picker vertically rotates and translates to move the label between the cassette and mold, changing the label's path. This eliminates the need for a horizontal track between molds. The picker uses electrostatic adsorption to grip the label.

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Manufacturing method and apparatus for making labeled containers with improved quality and reduced warping of the labels. The method involves separating and arranging the labels inside the mold instead of attaching them to the container after molding. This allows more consistent label placement and prevents warping from the thickness difference between the label and container walls. The labels are separated from a long film, arranged in the mold, and then molded with the labeled outer wall. The relative position of the labels inside the mold is different from the film layout.

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Manufacturing process for labeled containers with improved quality and anti-counterfeiting. The process involves creating leaf-shaped labels that are arranged inside molds to form the container walls. The labels are discharged from a long strip, extracted, and transported to the mold. The mold is filled with material to form the container around the arranged labels. An inspection checks the labels before removal to ensure they are in a good state. This prevents peeling or warping of the labels. The labeled containers have better appearance and prevent label abuses like reuse or counterfeiting.

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In-mold labeling system for injection molding machines that eliminates the need for adhesive labels by embedding labels directly into the molded part. The system has a horizontal carriage that moves a rotating assembly with a molding arm and end effector to insert labels into the mold. This allows the label to be precisely positioned and embedded in the part during molding instead of applying adhesive labels afterward. The carriage slides horizontally on rails and has a standard warehouse component on one side for component storage. This allows the carriage to move horizontally without tangling wires or components.

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An automated in-mold labeling device for plastic packaging that improves labeling efficiency compared to manual methods. The device has a conveyor belt, label storage box, vacuum pump, electrostatic sprayer, and telescopic rods. Labels are fed from the box onto the conveyor and positioned using the rods. A vacuum sucks the labeled part into the mold. After molding, the part with integrated label is ejected. The electrostatic sprayer applies adhesive to the label edge before molding to improve bonding. The conveyor, rods, and vacuum are controlled by a panel.

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Process for mold labeling that eliminates the need for complex mechanical equipment and label removal steps in molded item recycling. The process involves feeding a continuous sheet of label stock into the mold instead of individual labels. The label material is coated to resist mold temperatures and adhesion. The labeled article is washed in fluid to remove the label without damaging the coating. The label expands in the fluid forming channels between it and the article for fluid flow. This allows washing without peeling the label off the molded item.

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Injection molding process for labeling cylindrical products like glass tubes with in-mold labels that avoids wrinkling and slippage issues. The mold has a channeled sidewall with smaller buffer grooves near the cavity entrance. The label feeding assembly has gas channels and electrostatic needles to position the labels. The label feeding robot feeds labels into the assembly. The buffer grooves prevent label slippage during molding. The gas channels inflate the labels against the mold wall. The electrostatic needles hold the labels.

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Container with an in-mold label that accurately attaches to the inner surface of the container body. The label has a side label on the body portion and a bottom surface label on the bottom. The bottom label edge overlaps and adheres to the lower end of the side label during molding to prevent turning and resin intrusion. This improves label accuracy compared to conventional in-mold labeling. The mold closing, injection, and label holding steps are optimized to achieve this.

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A fully automated in-mold labeling and closing system for milk powder containers that eliminates manual labeling and reduces contamination. The system has a labeling closure driving device that slides into the mold to affix labels inside. It also has a closing type clamping device that slides to cover the molded product. A label placement assembly raises and lowers labeling heads. An integrated product sending and taking device removes containers. The system also has a blanking device to remove scrap. This fully automated system improves efficiency and hygiene compared to manual labeling and closing.

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