Christmas gift tin box quality inspection process

 Process inspection is to prevent non-conforming products from flowing into the next process, and to inspect the products processed in each process and the main process elements that affect product quality. Its function is to judge the product based on the test results, that is, whether the quality of the Christmas gift tin box produced meets the requirements of the specifications; the process is determined based on the test results, that is, whether the process elements are in a normal and stable state, thereby determining the process Whether it can continue production.

Purpose of process inspection

  The purpose of process inspection is to prevent non-conforming products from appearing and prevent them from flowing into the next process to continue processing. Therefore, process inspection must not only inspect products, but also verify the main process elements that affect product quality.

Process inspection function

Process inspection can play two roles:

① Determine the product based on the test results, that is, whether the product quality meets the requirements of specifications and standards;

② Make a judgment on the process based on the test results, that is, whether the process elements are in a normal and stable state, so as to determine whether the process should continue production.

Process inspection form

- First Article Inspection

Through the first article inspection, it can be found that there are systemic reasons such as severe wear of the tool and fixture or installation and positioning errors, poor accuracy of measuring instruments, wrong drawings, feeding or color errors, etc., so that corrective or improvement measures can be taken to prevent batch failures. Qualified products occur.

The first article inspection generally adopts the "three inspection system" approach, that is, the operator performs self-inspection, the team leader or quality officer performs re-inspection, and the inspector performs special inspection. After the first inspection, whether it is qualified or not, it shall be approved by a full-time inspector. The inspector shall put the required mark on the first product that passes the inspection and keep it until the processing of the class or batch of products is completed.

For mass-produced products, the "first piece" is not limited to one piece, but a certain number of samples must be tested. Especially in the process where tooling is the dominant factor (such as stamping), the first piece inspection is more important, and the positioning accuracy of the iron box mold must be repeatedly corrected. In order to make the positioning of the tooling accurate, the positioning accuracy tolerance pre-control method is generally used, that is, the tooling is repeatedly adjusted to control the positioning size within the pre-control line within the range of 1/2cm.

-Road inspection

Itinerant inspection is to inspect workers to the work site or production site at a certain time interval and route, and use spot checks to check whether the newly processed products meet the requirements specified in the drawings, processes or inspection instructions.

In mass production, patrol inspection is generally combined with the use of process control charts. It is an important measure to alarm for abnormal conditions in the production process and prevent batches of waste.

When the patrol inspection finds that there is a problem in the process, two tasks should be carried out: one is to find the reason for the abnormal process, and effective corrective measures are taken to restore its normal state; the second is to carry out the inspection after the last patrol. All the products produced before are re-inspected and screened to prevent unqualified products from flowing into the next process (or users).

Itinerant inspection is carried out according to the time sequence of the production process, so it is helpful to judge the change of the production status of the process with the time process, which is extremely beneficial to ensure the quality of the entire batch of processed products.

Final inspection

  It is very important to establish a "final product inspection system" in the manufacturing process of Christmas gift iron box containers that rely on mold devices to ensure quality. That is, after a batch of products are processed, the last processed product is fully inspected. If defects are found, the mold or device can be repaired before the next batch is put into production, so as to avoid being discovered after the next batch is put into production, which will affect production due to the need to repair the mold.

   Process inspection is an important link to ensure product quality, but as mentioned earlier, the role of process inspection is not simply a check, but must be closely integrated with process control to determine whether the production process is normal. For example, it is usually necessary to effectively coordinate the first inspection and inspection with the use of control charts.

  Process inspection should be closely linked with quality improvement, and the inspection results should be turned into quality improvement information, so that quality improvement actions can be taken. The process that is determined as the process management point should be the focus of process inspection. In addition to inspecting and supervising the operator’s strict implementation of the process operating procedures and the requirements of the process management point, the inspector should also pass inspections to verify the changes in the quality characteristics of the quality management point and the leading factors affecting it, and check the inspection and inspection of the operators. Whether the records and management are correct, assist the operator to analyze and take corrective measures.

Our professional quality inspectors inspect the tin boxes in strict accordance with the inspection process, including: incoming material inspection, production process inspection, final inspection, shipment inspection, etc. The Christmas gift tin boxes we produce have undergone strict quality inspection to ensure that we The tin box meets customer requirements.