The automatic checkweigher gives release to the items that pass the test, and for the automatic non-conforming items, either by means of alarm or by the sorting mechanism to be pushed out of the conveyor belt. Automatic checkweigher can replace the manual sampling and testing on the production line, and can do so for all the items passing through without exception, is to ensure the quality of production products is a very suitable measuring equipment. Sorting scale is a high-speed, high-precision online automatic inspection equipment, can be integrated with a variety of packaging production lines as well as conveyor systems, mainly used for online inspection of the product automatically whether qualified, whether the package is missing or the product is automatically stored. Online checkweighing has gradually become an indispensable link in modern industrial production, especially in the production process of food and pharmaceutical industries. Online automatic checkweigher completes the measurement of product automatic in the process of product transportation, and compares the measured automatic with the pre-set range, and sends out the instruction from the controller to reject the automatic unqualified products, or distribute the products with different automatic ranges to the designated area. There is a light conveyor installed on the inspection table of the automatic checkweigher, when the measured item passes through the inspection table, the system automatically makes judgment on it, detects whether it meets the specified automatic requirements, and makes the qualified, overweight, underweight prompts, or executes the corresponding unqualified product rejection action (according to the user's needs), and pushes the unqualified product out of the production line. The automatic checkweigher control system has the functions of standard automatic detection, counting, alarm and sorting. The automatic checkweigher can also have the function of grading and sorting (to be customized). When different automatic specifications are transferred on a conveyor belt, the sorting scale is still able to identify them automatically.

Automatic checkweigher can be used to control the qualified rate of finished products, detect whether the packaging automatically meets the standard, determine whether the number of items placed in the box meets the requirements, automatically determine the automatic and grade classification of small packages of food, but also can be used to detect the automatic error of the bags on the quantitative packaging production line, but also check the weight of the machining production line of the abnormal state of the previous processing process, so as to eliminate substandard products. It can also be used to check the abnormal state of the previous processing process in the machining line, so as to reject the non-conforming products, or to implement the alarm to achieve the purpose of timely adjustment of equipment and product quality control.

The working process of automatic checkweigher is as follows:

Weighing preparation

Products into the feed conveyor, feed conveyor speed settings, generally based on product spacing and the required speed to jointly determine. The purpose is to ensure that only one product can be on the weighing platform during the automatic checkweigher's working process.

Weighing process

When the product enters the weighing conveyor, the system recognizes that the product to be inspected has entered the weighing zone according to external signals, such as photoelectric switch signals, or internal level signals. Depending on the speed of the weighing conveyor and the length of the conveyor, or on the level signal, the system determines the time at which the product leaves the weighing conveyor. From the time the product enters the weighing platform to the time it leaves the platform, the load cell will detect the signals shown in the figure below, and the controller will select the signals in the signal stabilization area for processing, so that the product can be automatically obtained.

Sorting process

When the controller gets the automatic signal of the product, the system will compare it with the pre-set automatic range and sort the product, the sorting type will be different according to the different applications, there are mainly the following types:

1) Rejection of non-conforming products

2)Rejecting overweight and underweight separately or transporting them to different places.

3)Sorting to different automatic categories according to different automatic ranges

Report Feedback

Automatic checkweighers are equipped with an automatic signal feedback function, which usually feeds back the average automatic of a set number of products to the controller of the packing/filling/canning machine, which will dynamically adjust the dosing volume to make the average automatic of the products closer to the target value.

In addition to the feedback function, the automatic checkweigher can also provide a wealth of reporting functions, the number of packs per zone, the total number of packs per zone, the number of passes, the total number of passes, the average value, the standard deviation, and the total number and the total total accumulation.

The in-line automatic checkweigher can be applied in many industries, such as all kinds of food, plastics, daily chemicals, batteries, pharmaceuticals, chemicals, beverages, plastics, rubber and other various industries.

Mainly used in the following applications:

1, the final inspection of the product automatically

In the final part of the product production of the product automatic re-inspection, the unqualified products out of the factory to ensure that the product automatically meets the requirements. This is conducive to ensuring the interests of both consumers and producers. Consumers will not suffer losses due to lack of pounds, and manufacturers will not suffer reputational damage due to customer complaints or even complaints.

2, feedback control

Automatic checkweigher working principle and use

Automatic checkweigher in addition to providing automatic signals of the product, the unqualified products for rejection can also be in accordance with the average automatic and nominal automatic difference in output feedback signals to the packaging and filling equipment, automatic automatic adjustment of the average automatic to make it consistent with the setting of the automatic, so as to reduce production costs. For example, each package of milk powder 500 grams automatically, without the use of automatic checkweigher, the average automatic packaging for 503 grams in order to ensure that the product automatically meets the standard, the use of checkweighing automatic feedback control, the average automatic can reach 5000 grams to 10,000 packages per day production, daily savings of 30,000 grams per day, saving 10.8 tons per year, in accordance with the market price of medium baby milk powder per package of 15 yuan per year can save 360,000 yuan.

3、Check for product shortage

For large packages containing small packages of products, such as beverage boxes, large bags containing a number of small bags of products on the occasion, due to equipment or personnel factors, will result in missing products. The use of automatic checkweigher on the large package for automatic inspection, you can ensure that the large package will not appear in the phenomenon of missing products. For example, each case of 12 bottles of beverages, each case of normal automatic is certain, check each case of automatic can be found without the phenomenon of missing.

4, grouping classification

For automatic uneven product automatic classification. For example, if the manufacturer of split chicken wants to divide the chicken wings of different sizes into a number of automatic ranges, it can use the checkweighing to weigh each chicken wing automatically and send the automatic signal to PLC, which will drive the corresponding push plate to send the chicken wings to the corresponding box according to the set range to complete the purpose of automatic classification.

The above applications are some of the conventional applications of automatic inspection, automatic checkweigher can also be used in the military, daily necessities and many other industries, the United States has used automatic checkweigher to check the automaticity of each bullet, because the automaticity of the bullets will affect the flight path of the bullets.

In addition, automatic checkweigher can also be used in the distribution of newspapers for counting, newspapers in the printing and bundling of the number of possible inaccurate, distributed to the total number of areas may be inaccurate, the use of automatic checkweigher for counting and fast and accurate, can save a lot of manpower.

By processing the signals from a fixed area, the product can be automatically obtained.

Sorting process

When the controller gets the automatic signal of the products, the system will compare with the pre-set automatic range and sort the products, the sorting type will be different according to the different applications, there are mainly the following types:

1) Rejection of non-conforming products

2)Rejecting overweight and underweight separately or transporting them to different places.

3)Sorting to different automatic categories according to different automatic ranges

Report Feedback

Automatic checkweighers have an automatic signal feedback function, usually the average automatic feedback of the set number of products to the packaging/filling/controller, the controller will dynamically adjust the amount of filling to make the average automatic product closer to the target value.

In addition to the feedback function, the checkweigher can also provide a wealth of reporting functions, the number of packages per zone, the total number of packages per zone, the number of qualified, the total number of qualified, the average value, the standard deviation, and the total number of packages and the total total accumulated.

The online weighing and checkweighing machine can be applied in many industries, such as all kinds of food, plastics, daily chemicals, batteries, pharmaceuticals, chemicals, beverages, plastics, rubber and other various industries.

Mainly used in the following occasions:

1、Automatic final inspection of products

In the final part of product production on the product of automatic re-inspection, the unqualified products out of the factory to ensure that the products automatically meet the requirements. This is conducive to ensuring the interests of both consumers and producers. Consumers will not suffer losses due to lack of pounds, and manufacturers will not suffer damage to their reputation due to customer complaints or even complaints.

2、Feedback control

Working principle and application

In addition to providing automatic product signals, checkweigher will reject unqualified products can also be in accordance with the average automatic and nominal automatic difference in output feedback signal to the packaging and filling equipment, automatically adjust the average automatic to make it consistent with the set automatic, so as to reduce production costs. For example, each package of milk powder 500 grams automatically, without the use of automatic checkweigher, the average automatic packaging for 503 grams in order to ensure that the product automatically meets the standard, the use of checkweighing automatic feedback control, the average automatic can reach 5000 grams to 10,000 packages per day production, daily savings of 30,000 grams per day, saving 10.8 tons per year, in accordance with the market price of medium baby milk powder per package of 15 yuan per year, saving 360,000 yuan.

3、Check for product shortage

For large packages containing small packages of products, such as beverage boxes, large bags containing a number of small bags of products on the occasion, due to equipment or personnel factors, will result in missing products. The use of automatic checkweigher on the large package for automatic inspection, you can ensure that the large package will not appear in the phenomenon of missing products. For example, each case of 12 bottles of beverages, each case of normal automatic is certain, check each case of automatic can be found without the phenomenon of missing.

4, grouping classification

For automatic uneven product automatic classification. For example, if the manufacturer of split chicken wants to divide the chicken wings of different sizes into a number of automatic ranges, it can use the checkweighing to weigh each chicken wing automatically and send the automatic signal to PLC, which will drive the corresponding push plate to send the chicken wings to the corresponding box according to the set range to complete the purpose of automatic classification.

The above applications are some of the conventional applications of automatic detection, automatic checkweigher can also be used in the military, daily necessities and many other industries, the United States has used automatic checkweigher to check the automaticity of each bullet, because the automaticity of the bullets will affect the flight path of the bullets.

In addition, the weighing machine can also be used in the distribution of newspapers for counting, newspapers in the printing and bundling may not be the number of inaccurate, distributed to the total number of areas may be inaccurate, the use of automatic checkweighing machine for counting and fast and accurate, can save a lot of manpower.