Plastic Crate Making Machine,Plastic Crates are usually used for general storage in places such as warehouses.
Plastic Crates are usually used for general storage in places such as warehouses for sorting, storing, and transporting goods.
Come with handles for easy lifting and handling and are designed to be stacked or nested for easy storage and maximizing the storage capacity of the warehouse.
Plastic boxes are manufactured using a process called plastic injection molding.
Plastic Crate Making Machine
An injection molding machine is a machine that takes virgin plastic products or raw materials and processes them into usable products.
The introduction of plastic boxes has eliminated many of the problems of storing goods in wooden and cardboard boxes.
Plastic boxes come in a variety of sizes and shapes, each with its unique use and specifications.
Customers can also determine the design of the box according to their usage plan.
Haichen Machinery can choose the type and model of crate that best suits your needs,
and can also customize samples to provide you with a safe, strong, recyclable, and easy-to-clean plastic basket production solution.
What’s the Plastic Crate Making Progress?
1. Choose the Plastic Crate Raw materials
2. Design The Mold For The Crate
3. Choose an Injection molding machine for Plastic beer Crate
4. Auxiliary Machines for Plastic Crate Making Machine
5. Plastic Crate is completed
Choose the Plastic Crate Raw materials
The plastic materials used to make crates come in different shapes, sizes, and colors.
They can withstand different temperatures, other loaded and stacked crate weights, and shocks.
HDPE
High-density polypropylene (HDPE) is very similar to polypropylene, but has better impact resistance, making it a more durable material.
However, to achieve this characteristic, it loses some of its rigidity.
So the bending increases and the final weight of the tote increases due to the higher density.
HDPE is the recommended choice for extremely harsh environments.
As well as frozen environments because it has the best performance at low temperatures.
HDPE is the recommended choice for all crates and plastic basket series.
RPP or RHDPE
In the production of containers, recycled materials can be used, which mainly come from the first recycling,
such as crates or plastic containers, so their properties are very similar to those made with new materials.
However, the color may vary within the same lot or in different batches.
Recycled Plastic Materials
Recycled plastic materials are thermoplastic polymers obtained by recycling certain plastic products that were originally made with new or recycled materials.
These materials are processed by recycling companies, and the recycled materials are usually made from a mixture of different plastic sheets that are made from different grades of the same polymer.
As a result, recycled materials are a mixture of polymers that have different properties due to different proportions of recycled materials.
Using recycled plastic materials is a more economical option than sourcing virgin materials.
Design The Mold For The Crate
The design of injection molds for plastic containers needs to consider many factors to ensure that the molds can produce high-quality plastic baskets efficiently and accurately
Mold Structure Design
Mold is an important part of production, which directly affects the molding quality and accuracy of the product.
First of all, it is necessary to make a detailed design according to the shape and size of the plastic basket.
Secondly, it is necessary to choose the right material to ensure the strength and durability of the mold.
Which has enough strength and rigidity to withstand the pressure during the injection molding process.
When designing nozzles, sprues, and runners.
It is necessary to ensure that the molten plastic can be injected into the mold evenly and smoothly to avoid bubbles and shrinkage that cause defects in the turnover box.
Side Core Pulling System Design
For turnover boxes with side concaves or side holes.
It is necessary to design side core pulling systems (such as sliders and rows) to ensure that these parts can be successfully demolded.
Ejection System Design
The ejection system is used to eject the molded plastic basket from the mold,
and the design should ensure that the ejection force is sufficient and uniform to avoid damage to the product.
The design ensures that the product is separated from the mold and does not affect the appearance and structure of the container.
Cooling System Design
The cooling system is an important part of the mold.
which is used to control the cooling rate of plastic raw materials in the mold, which directly affects the molding quality and surface finish of the turnover box.
It is necessary to design a reasonable cooling circuit according to the type of plastic and molding requirements.
Precautions in the design of plastic basket injection mold
Runner system
Ensure that the runner system is reasonable, and avoid dead angles or complex jet channels, so as to reduce the generation of bubbles.
Gate location
Set the gate position correctly, avoid long and narrow sprue and diverter channels, reduce the dead angle of gas storage, and ensure that the mold exhaust is good.
Cooling system
Reasonable design of cooling system to ensure uniform cooling and avoid vacuum bubbles caused by insufficient cooling.
Choose an Injection molding machine for Plastic beer Crate
For example, we produce 12 bottles of plastic beer baskets made of HDPE material, its inner size is 334*245*304mm, the outer size is 362*272*318mm, and the weight is 1.269kgs.
Haichen machine manufacturer
Haichen Fruit basket precision injection molding machine suit for all kinds of crate,basket,industrial crate machines….
We have more than 20 years to produce the injection molding machine for crate.
Choose the right injection molding machine according to the weight, size, and material characteristics of the product.
The specific steps are as follows:
Injection volume
Determine the required injection volume based on the volume and weight of the product.
Haichen’s HCK 410-ton injection molding machine can be perfectly matched with this mold.
Tie rod spacing and clamping stroke
ensure that the mold opening position and cycle time meet the requirements.
It should be noted that the size of the mold will be larger than the plastic beer basket.
So it is necessary to consider not only the outer size of the beer basket but also the size of the mold and whether it can be loaded and unloaded on a specific tonnage injection molding machine.
Tonnage
Choose the appropriate tonnage according to the forming pressure of the product.
Template size
Make sure that the installation method and size of the mold match the injection molding machine.
Auxiliary Machines
Auxiliaries are an indispensable part of the injection molding production process.
They provide auxiliary functions to the injection molding machine to ensure the smooth operation of the injection molding process.
Shredder
It is used to crush waste plastic into small particles for reuse.
Feeding machine
Automatically and evenly feed the material into the injection molding machine.
Chiller
Used to cool molds and equipment, to ensure the life and stability of the injection molding device, divided into air cooling and water cooling.
Water tower
Used to store and supply cooling water to ensure the stable operation of the cooling system, generally used with water chillers.
Mold temperature controller (mold temperature machine)
Used to heat or cool the mold to maintain its working temperature, to ensure the quality of injection molded parts and optimize the processing time.
Dryer
Used to remove moisture in plastic raw materials and prevent quality problems such as bubbles or markings during the injection molding process.
Color mixer
Used to mix different colors of plastics to ensure the color of the final product is uniform.
Auto robot arm
Used for automatic handling and placement of plastic products, reducing manual operation and improving production efficiency.
These auxiliaries play a vital role in the plastic crate production process, ensuring the quality and efficiency of the production of plastic products.
Plastic Crate is completed
First of all, you need to prepare plastic raw materials, which are generally white crystalline particles, mix it with masterbatches,
and enter the hopper of the injection molding machine through the feeding, dehumidification and drying machine.
Then the screw or piston of the injection molding machine will push the plastic raw materials to rotate and move in the barrel,
and at the same time heat to melt them into a flowing state, and the melted plastic is injected into the closed mold through the nozzle.
In the mold, the molten plastic gradually solidifies during the cooling process, eventually taking the shape of a plastic beer basket.
After the cooling is complete, the injection molding machine opens the mold and takes out the plastic beer basket that has been formed.
Depending on the customer’s needs, the molded plastic beer basket may undergo further post-processing,
such as washing, drying, and other steps to ensure its surface quality and usability.
Through the above steps, the plastic raw materials are heated and melted, injection molding,
cooling and shaping and a series of processes under the action of the injection molding machine, and finally the plastic beer basket is produced.
Plastic Crate injection Machine
The size of the plastic basket is different, and the tonnage of the injection molding machine required is also different.
Types of Plastic Crates
Plastic Fruit Crates
Folding fruit and vegetable baskets made of food-grade PP material, the raw materials have been inspected,
meet the requirements of food-grade transportation packaging, and are equipped with special certificates.
Injection molding process, one-piece molding.
In this case, ensuring that the pallet box as a whole makes the fruit and vegetable basket more sturdy and hard. Ventilation on six sides ensures that the freshness of the fruit is not perishable.
They can be stacked during transport, and thanks to the sturdy borders, the fruits and vegetables will not be crushed after stacking.
Folding fruit and vegetable baskets, the folding ratio is 60%, and empty container transportation can reduce transportation costs. Convenient storage and reduced storage pressure.
Plastic Milk Crate
Milk Plastic Crates, according to the size, can be divided into, 16 quarts milk baskets, 24 quarts milk baskets, etc.
The plastic milk turnover box is easy to clean, easy to turn over, neatly stacked, and easy to manage.
Its reasonable design and excellent quality are suitable for transportation, distribution, storage, circulation, and processing in milk logistics.
The plastic milk turnover box is produced with large size and large demand, and high-density polyethylene HDPE with good fluidity, low cost, mechanical properties, and heat resistance is selected as raw materials.
To have a good plastic filling effect, a special hot runner system must be used.
This is because, if you want to mold a long-lasting container, you have to use HDPE materials with a low melt flow index, such as plastics with a 4 or 6 index.
The ejection method of the milk turnover box mold is best designed as mechanical ejection so that the ejection action can be completed when the mold is opened.
Of course, if the injection molding machine can be equipped with two hydraulic drives and the machine can automatically eject, the ejection action during mold opening can be smoother.
Plastic Egg Crate
Plastic egg trays divide the plastic egg crates into several rows to fit a large number of eggs, and each egg tray has a polygonal groove design with craters.
The middle collars are designed to be foldable, and the top and bottom supports can be embedded or stacked, saving up to 50% of storage space compared to traditional packaging.
The top cover and bottom tray of the egg tray with their lock and the collapsible come from a complete set of combined types, which are injection molded at one time.
Plastic egg trays are extremely easy to assemble or disassemble,
without the help of tools, and one person can complete the disassembly or assembly in a few minutes.
The top cover and bottom bracket are each designed with 2 quick locks, which can buckle the hoarding, so there is no need to wrap again, saving the packing material and labor costs.
Plastic Beer Crate
The material of the beer crate is generally plastic, and it is a kind of basket used to store or transport beer bottles.
Which is a necessity for the storage and transportation of beer enterprises.
The general material of plastic beer baskets is high-density low-amp polyethylene (HDPE) and one-time injection molding.
Polyethylene has a very low low-temperature embrittlement temperature and is safe to use in the temperature range of -60-60°C.
When used in winter, the product will not be brittle due to the good impact resistance of the material.
Machine Price
The size of the plastic basket is different, and the tonnage of the injection molding machine required is also different.
Injection Molding Machine Price
Generally, the price range of injection molding machines is wide, ranging from tens of thousands of yuan to several million yuan.
Mold price
The price of the mold mainly depends on the material cost, design fee, processing fee, and other factors.
Generally speaking, the price of molds can range from hundreds of thousands of yuan to millions of yuan.
The design difficulty and accuracy requirements of the mold will also affect the price.
The more complex the design, the higher the accuracy requirements and the higher the price.
Crate Making Machine Use Guide
Preparation before starting
Clean the environment around the equipment, and do not allow the storage of items unrelated to production.
Clean up the debris inside and outside the workbench and equipment,
and wipe the injection guide seat and clamping part of the tie rod with clean cotton sand.
Check whether the control switches, buttons, electrical wiring, operating handles, and hand wheels of the equipment are damaged or malfunctioning.
Ensure that the safety valve and safety device of the plastic crate-making machine are intact and effective, and there is no fault.
Check the lubrication system to make sure the lubricating oil is in normal condition. Inspect the electrical system to rule out any possible faults.
Precautions for operation
The operator should be familiar with the basic structure and working principle of the injection molding machine,
and receive relevant training and guidance.
Before operating the injection molding machine, you should carefully check whether the machine and equipment are normal,
and if there is any abnormality, you should report for repair in time.
Operators should wear work clothes and personal protective equipment such as helmets, goggles, and protective gloves.
It is forbidden to touch the inside of the injection molding machine at will during the working process to avoid being pinched;
During the work, other personnel are prohibited from entering the operation area except for the operator.
At the end of each day, the injection molding machine is thoroughly cleaned, especially in the syringes, mold cavities, and nozzles.
Regularly inspect the sliding parts inside the machine, clean, and apply the appropriate amount of lubricating oil promptly.
Clean the cooling system of the injection molding machine regularly to prevent clogging and limescale.
Safety measures
The injection molding machine should be equipped with complete safety protection devices.
Such as fences, protective covers, warning lights, etc., to ensure the safety of operators.
Regularly inspect, repair, and replace these units to ensure they are functioning properly.
safety door
Check whether the safety door moves flexibly, whether the travel switch can be touched and depressed,
whether the safety mechanical collision block is flexible and reliable,
the bumper is reset, and whether it is strictly forbidden to operate in the case of mechanical safety out of control.
whether the emergency stop button is effective;
Whether the protective facilities of the plastic machine are complete.
mold-fixed pressing plate
Check whether the mold-fixed pressing plate is loose and whether the mold is displaced.
When the work starts and the workers alternate shifts, it is necessary to check whether the operation of the safety device is normal.
During the operation, do not touch any moving parts of the equipment with your hands to prevent pinching.
Do not wear gloves to operate the keys to prevent pressing the wrong buttons.
It is strictly forbidden for more than two people to operate the equipment at the same time.
Emergency Handling
In the event of an emergency, immediately press the emergency stop button to stop the operation of the equipment, and deal with it according to the emergency plan.
Routine maintenance of Crate Making Machine
The daily maintenance precautions of the injection molding machine mainly include the following aspects:
Check the screws and connectors
Check whether the screws on the mold are loose or missing.
Inspection of electrical components
Check whether the plug wires, travel switches,
Micro switches, position rulers, emergency stop buttons, etc. are working properly.
In addition, it is necessary to inspect the wires for deterioration or hardening,
Especially in areas that are often in contact with grease.
Hydraulic system inspection
check the quality of hydraulic oil, and deal with it in time when it is found that the oil contains impurities,
insufficient oil, or contains water, and make up for the insufficient hydraulic oil.
At the same time, check whether the working pressure of the hydraulic system is too low or too high,
and check whether there is oil leakage in each part of the injection molding machine.
Other checks
Include checking the timing accuracy of the timer,
the temperature sensing line, the accuracy of the thermostat, and the contacts of the relay, travel switch, switch button, etc.
Through the above measures, you can ensure that the daily maintenance of the injection molding machine is in place,
prolong the service life of the equipment, improve production efficiency, and reduce the failure rate.
Mold Cleaning
The cleaning method of beer basket injection mold can refer to the following steps: Surface cleaning:
First, wipe the surface of the mold with a common cleaning agent, and then spray anti-rust oil to prevent rust.
Cavity cleaning:
For cavity parts, alcohol can be used to wipe them.
If rust is found, it can be polished with a polishing paste and then wiped with alcohol.
Waterway cleaning:
Ensure that the cooling water system of the mold does not leak or splash onto the surface of the mold,
and clean it immediately after each use to avoid plastic residue in the mold.
Ultrasonic cleaning:
For some parts that are difficult to clean, you can use an ultrasonic cleaner for cleaning.
Place the mold face down in an ultrasonic cleaner, wash for 40 minutes, rinse with deionized water, and dry manually.
Manual cleaning:
For some simple dirt, you can use the method of pure manual cleaning.
Use a soft cloth or brush to wipe gently, avoiding scratching the surface of the mold with hard objects.
Through the above methods, the beer basket injection mold can be effectively cleaned, ensuring its long-term stable operation and improving product quality.
Plastic Crate Mold replacement
Beer basket mold replacement for injection molding machines refers to the process of changing the mold when the shape, size,
or material of the product needs to be changed during the injection molding production process.
This process has a direct impact on product quality and production efficiency.
The following are the detailed steps and precautions for the mold change of the injection molding machine:
Preparation
Turn on the power and start the manual button of the injection molding machine to put the device in a manual state.
Check the injection system, mold opening and closing system, hydraulic system, and electrical system of the injection molding machine to ensure that it is working properly.
Clean up the debris and oil stains on the machine and remove the oil stains on the column.
Unloading old molds
Use special equipment such as mold unloading robots to remove old molds from the injection molding machine and dispose of them properly. Old molds are cleaned and inspected to ensure their integrity and usability.
Install the new mold
Lift the mold and install it on the injection molding machine, align the positioning ring, lock the mold, and install the pressure plate.
Ensure that the mold and the template and mold mounting surface of the injection molding machine are cleaned and maintained, so as not to affect the accuracy.
Preheating the mold
Turn on the heating system of the injection molding machine to preheat the barrel and mold. Preheating the mold can improve production efficiency and reduce molding defects caused by uneven temperatures.
Debugging the mold
Adjust the thickness of the mold to achieve the desired clamping force. A small amount of injection testing is performed to check that the molten plastic flows and forms properly.
Full-scale production
Started the injection molding machine and started full-scale production. During the mold change process, the injection molding machine must be inspected and maintained to ensure the normal operation of the equipment.
Quick Mold Change Technology
Using magnetic template technology, the mold is firmly adsorbed on the injection molding machine by using strong magnetic force to achieve fast and safe mold change.
The magnetic platen system uses electronically controlled permanent magnet technology to complete the clamping and unclamping process in just a few seconds, without manual operation.
It can effectively improve the mold change speed and production efficiency of the injection molding machine, and reduce labor costs and production time.
The application of quick mold change technology has become an indispensable part of modern injection molding production.
Haichen extensive experience covers many areas such as food, beverage, vegetable and fruit, household storage with product images, and all types of crates.
The products of Haichen plastic crate making machines have the advantages of high precision, high productivity, long life, and low energy consumption,
and the products will cover all the equipment you need for production and can be a one-stop solution for your production needs.
