With the development catering industry, beverage industry and food packaging market, the demand for disposable paper cups is increasing. Medium speed paper cup molding machine has been widely used in paper cup manufacturing enterprises because of its high efficiency, high automation and moderate investment cost of equipment.
Medium speed paper cup molding machine usually needs to complete the paper transfer, paper cup wall molding, paper cup substrate, heating sealing, curl, finished product output, and so on. Due to various factors such as mechanical, electrical, material and process parameters involved in the production process, if equipment debugging or maintenance is improper, problems such as paper cup leakage, abnormal molding and equipment shutdown may occur.
Understanding these common problems and their solutions can help businesses improve productivity, reduce waste rates and extend equipment lifespan.
1, water leakage at the bottom of paper cups.
Question Expression
Leakage at the bottom of paper cups is a common problem in the production of medium speed paper cup molding machine.
When filled with water, the bottom of the cup leaks.
The connection between the bottom and wall of the cup is not strong.
The finished product inspection is not up to standard.
root cause
The main causes of water leakage from the bottom of the cup are:
Insufficient sealing pressure at the bottom of the cup;
Unreasonable heating temperature setting;
Not enough time to roll the bottom of the cup
paper cup raw material waterproof performance does not meet the requirements;
The mold that formed the bottom of the cup has worn out.
If the bottom seal process of the paper cup cannot form a stable seal, it is easy to cause leakage in the actual use of the paper cup.
Solutions
During production, the bottom molding mechanism of the cup needs to be inspected and the pressure, temperature and molding time adjusted according to the material and equipment condition of the cup.
At the same time, the wear and tear of the cup mold should be checked regularly and key components should be maintained or replaced in a timely manner.
2. paper cups are incomplete or deformed.
Question Expression
Some paper cups may experience:
Cups deformed
The walls of the cup don't stick.
The size of the cup is unstable.
Cups are not uniform in height.
root cause
The main reasons include:
Paper size deviation;
Inaccurate adjustment of cup mold;
Paper transport position offset;
The running speed of the equipment does not match the production parameters.
Medium speed paper cup molding machine requires a variety of institutions to coordinate the operation. If the positioning of a link goes awry, it can affect the final forming effect.
Solutions
Enterprises need to check the paper positioning system, mold installation position and molding mechanism operation status.
When producing paper cups of different specifications, the equipment parameters should be adjusted according to the shape of the cups to avoid using incorrect settings, resulting in lower product quality.
3. The quality of paper cup rolls is unstable.
Question Expression
Curling is an important process that affects the appearance and user experience of paper cups. Common problems include:
The cup rim Uneven curling.
Cracks appear in the curls;
Insufficient strength;
The cup has an irregular shape.
root cause
Possible reasons include:
The pressure of the curling mould is not suitable;
Die surface has wear and tear;
Changes in paper thickness;
Misaligned curling mechanism.
Solutions
While keeping the curling die clean, the curling pressure needs to be adjusted according to the thickness of the paper cup material.
For long continuous production equipment, the condition of the rolled edge components should be checked regularly to avoid affecting product quality due to wear and tear.
4. Offset problems with paper cup printing patterns.
Question Expression
For enterprises that produce custom paper cups, there are several ways to start:
Logo location offset;
Incomplete patterns;
The print did not match the cup's position.
root cause
These include, inter alia:
paper positioning;
The printing process Insufficient matching the molding processes.
Changes in substrate size;
The delivery system is unstable.
Solutions
Before production, it is necessary to determine the specifications of printing paper and adjust the equipment positioning system of the equipment.
For branded bespoke paper cups, uniform printing standards should be established to ensure consistency across batches.
5. Abnormal downtime occurs during equipment operation.
Question Expression
In the process of using a medium speed paper cup molding machine, the following may occur:
Automatic alarm;
The equipment stopped abruptly.
Production has slowed.
root cause
Common causes include:
Sensor malfunction;
Abnormal electrical system;
Wear and tear of mechanical components;
Insufficient lubrication;
Foreign object enter the device.
Solutions
When the equipment appears abnormal, it should be stopped in time to check, so as not to cause more serious damage due to operational error.
In routine maintenance, it is important to check:
Electrical control system;
Transmission components;
Heating components;
Mechanical connectors.
6, Decreased production efficiency and higher scrap rate.
Question Expression
After a period of use, some companies may find that:
Decrease in actual production;
Increased adjustment time;
The quantity of waste has increased.
root cause
These include, inter alia:
Long-term lack of maintenance of equipment;
Die precision decreased;
Unreasonable parameter settings;
Waves in raw material quality.
Solutions
The enterprise shall draw up a maintenance plan for the equipment and regularly inspect key components.
At the same time, the equipment parameters should be optimized according to production conditions to maintain stable operation of the equipment.
7, How to reduce the production problem of medium speed paper cup molding machine?
In order to improve the stability of equipment operation, enterprises may take the following measures:
1. Regular maintenance of equipment
Highlights:
Forming mold;
Sealing mechanism of cup bottom;
Heating system;
Lubrication system;
Transmission components.
2. Choose stable ingredients.
The quality of paper cup directly affects the forming effect of paper cups. The paper cup base paper with uniform thickness should be selected.
3. Strengthen operator training
Operators need to master:
Equipment startup process;
Parameter adjustment method;
Common troubleshooting methods;
Daily inspection content.
4. Establish quality inspection process
Periodic inspections shall be carried out during production:
Paper cup size;
Cup bottom seal;
Appearance quality;
molding stability.
Through standardized management, production anomalies can be reduced and product consistency improved.
FAQ: Common problems with medium speed paper cup molding machines
Why do mid-speed paper cup molders leak?
The main reasons include insufficient sealing pressure at the bottom of the cup, unreasonable temperature setting, mold wear, paper material and so on.
How to improve production stability of medium speed paper cup molding machine?
To do a good job of equipment maintenance, optimization of production parameters, use of stable raw materials, enhance the training of operators.
What are the common causes of paper cup deformation?
This may be related to mold adjustment error, paper size error, inaccurate equipment positioning, production parameter mismatch, etc..
Why do paper cup edges crack?
The main reasons include excessive crimp pressure, inadequate paper performance, mold wear or equipment adjustment unreasonable.
How often does a medium speed paper cup molding machine need maintenance?
Maintenance cycle depends on equipment running time and production environment. It is recommended that a regular maintenance plan be drawn up as required by the equipment manufacturer.
How to reduce the scrap rate of medium speed paper cup molding machine?
Reduce scrap rate by stabilizing raw material supply, maintaining equipment regularly, optimizing process parameters and strengthening quality inspections.
