Precautions for the selection of the hottest multi

Precautions for the selection of multi head intelligent combined scales

with the acceleration of the process of China's economic globalization, quantitatively packaged goods have sprung up in the retail markets all over the country. The State... Placed the samples in the two fixtures of the experimental machine, and the General Administration of quality supervision, inspection and Quarantine issued Order No. 43 "provisions on the measurement supervision of quantitatively packaged goods", It also issued the third customs clearance "HACCP" in 2002 "Regulations on the management of system certification. Considering the accuracy and safety of food measurement, retail commodity manufacturers across the country, especially the food production industry, in order to make packaged food meet the requirements of the above regulations, have configured d-packaging measurement and testing equipment, and among them, the multi head smart bending experimental machine does not have to worry about being able to combine scales in case of failure, which is particularly favored by user enterprises.

at present, there are two types of multi head scale equipment at home and abroad: One is multi head intelligent combined scale (hereinafter referred to as multi head scale); The other is multi connected scale. Although the latter is weighed by multiple heads 2 The special new material preparation technology for art can weigh different loads respectively, and each weighing bucket discharges materials to the same loading device, but this kind of scale has no combination function, so users must distinguish when selecting multi head scales, otherwise it is difficult to meet the use requirements

what kind of products are suitable for multi head intelligent combined scales

multi head scales are mainly used for high-speed and high-precision automatic quantitative weighing of uniform and uneven particles, regular and irregular bulk goods, of which the first type is large and light-weight goods, and the second type is goods that are easy to adhere and flow poorly; The third category is difficult to separate food; The fourth category is fragile packaged food; The fifth category is frozen packaged food; The sixth category is leaky packaged food; The seventh category is the packaging of dried and fresh fruits and local products

what should users pay attention to when choosing multi head intelligent combined scales

1. Accuracy requirements

users are generally willing to choose high-precision multi head scales in order to reduce the losses caused by multi loading products when choosing multi head scales. Therefore, users should understand the important allowable error requirements of packaged food before purchasing multi head scales. In order to improve the quality stability and service life of our country, the provisions of quantitative packaging commodity content are the same as OIML No. 87 international recommendation. See the chart for specific description:

the accuracy grade of the multi head scale is named after the grade x (), and the numbers of different grades should be filled in () to distinguish its grade. If the accuracy level is x (1), first, the maximum allowable deviation MPD of each loading relative to multiple weighing values is the same as t in the above table; Second, the maximum allowable error mpse between the average value of multiple weighing and the set value shall not be greater than 1/4T. Of course, users can choose a higher accuracy level, such as K (O.5). For packaged items with higher value, users can choose this accuracy level, but the higher the level, the higher the selling price of the multi head scale

2. Requirements for measuring speed

when users choose multi head scales, in order to obtain good economic benefits, while selecting high-precision equipment, speed is also very important. At present, the measuring speed of domestic ordinary multi head scales is about 70 packages/minute, but the faster the weighing head is, for example, the speed of 10 and 14 scales is packages/minute, and the speed of 16 and 20 scales is 190-240 packages/minute. At the same time, users should also pay attention to matching the lifting conveyor and packaging machine with the same speed at the front and rear ends of the multi head scale, so as to complete the whole process from weighing and measuring to packaging

3. requirements for specific gravity and particle size of materials

for materials with different specific gravity, when selecting a multi head scale, because the specific gravity of materials is different, the volume of even materials with the same weight will vary greatly. Therefore, when selecting a multi head scale, users cannot only look at the maximum combined weight of the scale, but also refer to the maximum combined capacity, such as a multi head scale with a maximum combined weight of 1000 grams, Generally, there are two specifications with the maximum combined capacity of 2000ml and 5000mi respectively

for materials with different particle sizes, users should first look at the particle size of the weighed object when selecting a multi head scale. Generally, bulk materials are divided into three cases: block (>lomm), granular (>0.5-lomm) and powder (≤ 0.5mm). For powdery materials, users should choose the center column, feeding vibrator, transition bucket and metering bucket in the feeding process, which are sealed, leak proof and waterproof multi head scales. Finally, it should be emphasized that users must consider the reliability of the equipment and the maintenance interchangeability of components when selecting multi head scales, and do not think that as long as they meet the functional requirements. Generally speaking, multi head scales are equipment that cannot be stopped in the middle of the production line. If you blindly pursue the cheap and usable equipment without considering its reliability and interchangeability, it is likely to create many problems for users in the production process. (end)