CN105136260A - Double-station weighing system and weighing method - Google Patents

Abstract

The present invention discloses a double-station weighing system and a weighing method. The double-station weighing system includes a first feed hopper, a first feed controller, a first sensor, a first weighing hopper, a first weighing controller, a second feed hopper, a second feed controller, a second sensor, a second weighing hopper, a second weighing controller, and a touch screen. The weighing system automatically judges whether employs a single station or double stations according to a preset weight. The present invention also provides the weighing method using the weighing system. The weighing system can select single station or double stations for weighing according to weight signals in various weighing ranges without equipment replacement and complete required measuring work only at one time so as to greatly improve measuring efficiency.

Description

Double weighing system and Weighing method

Technical field

The present invention relates to a kind of weighing system and Weighing method thereof.Especially a kind ofly the weighing system of double form and a kind of Weighing method utilizing this weighing system to realize can be adopted according to material weighing situation.

Background technology

A lot of occasion in industrial site is it is desirable that dynamic weighing.Dynamic weighing refers to that the weight of material is often along with the time constantly changes while the weight measuring material.In dynamic weighing process, there is various disturbing factor, to weigh speed if improve, then material is applied to the factors such as impulsive force in scale hooper and aerial remaining inventory and reduces weighing precision; If improve weighing precision, then in certain degree, reduction is needed to weigh speed.

Traditional Weighing system adopts static mechanical weighing, and then by manually the carrying out that material loads in packaging bag one bag a bag being weighed, the manual labor amount that whole process drops into is very large, and production efficiency is very low, and the precision of weighing is subject to again artificial factor impact.

Ration package scale can solve the impact of human factor, but uncontrollable for the precision of weighing amount.Ability of weighing is declined, cannot need of production be met.

Summary of the invention

The technical problem to be solved in the present invention can only be weighed simply to overcome weighing system in prior art and can not weigh rapidly and accurately for different situations, a kind of weighing system that can use single station or double according to the weight automatic decision of setting is provided, and a kind of Weighing method utilizing this weighing system to realize.

The present invention is achieved by the following technical programs:

Described double weighing system comprises: the first feed hopper, the first feeding controller, first sensor, the first scale hooper, the first weighing controller, the second feed hopper, the second feeding controller, the second sensor, the second scale hooper, the second weighing controller, touch-screen.

The output terminal of described first weighing controller is connected with the first feeding controller input end, and the first feeding controller is connected with the first feed hopper, and first sensor is connected with the first scale hooper, and the output terminal of first sensor is connected with the first weighing controller input end; The output terminal of the first weighing controller is connected with the first scale hooper Valve controlling end.

The output terminal of described second weighing controller is connected with the second feeding controller input end, and the second feeding controller is connected with the second feed hopper, and the second sensor is connected with the second scale hooper, and the output terminal of the second sensor is connected with the second weighing controller input end; The output terminal of the second weighing controller is connected with the second scale hooper Valve controlling end.

Described touch screen signal end is connected with the first weighing controller signal end and the second weighing controller signal end respectively.

Present invention also offers a kind of Weighing method of foregoing double weighing system, comprising:

Each described feed hopper adopts high speed, middling speed, low speed convey materials respectively;

Touch-screen is weighed according to given weight of material automatic choice for use list station or double;

Weighing controller controls feeding controller working method according to the weight of material detected.

Weighing controller adopts composite slide filtering algorithm, and when can eliminate rapid weighing, LOAD CELLS is owing to being subject to vibrating and the value of material impact power mutagenesis and random non-disturbance by a small margin smoothly, raising weighing precision.

Compared with prior art, the invention has the beneficial effects as follows: can select to adopt single station or double to weigh according to weight signal in different range of weighing, without the need to more exchange device, once just required weighing work can be completed, greatly improve the efficiency and precision of weighing.

Accompanying drawing explanation

Fig. 1 is double weighing system structural representation of the present invention;

Fig. 2 is the block diagram of a kind of embodiment of Weighing method of the present invention.

Embodiment

The present invention will be described for composition graphs 1:

Double weighing system comprises: the first feed hopper (2), second feed hopper (7), first feeding controller (1), second feeding controller (6), first scale hooper (4), described first scale hooper is also provided with dispensing valve, second scale hooper (9), described second scale hooper is also provided with dispensing valve, first sensor (3), the second sensor (8), the first weighing controller (5), second weighing controller (10), touch-screen (11).Wherein the first feeding controller (1) is respectively with high speed, middling speed, low speed realizes the first feed hopper (2) mass transport, second feeding controller (6) is respectively with high speed, middling speed, low speed realizes the second feed hopper (7) mass transport, first feeding controller (1) is connected with the first feed hopper (2), second feeding controller (6) is connected with the second feed hopper (7), first sensor (3) is connected with the first scale hooper (4), described first sensor (3) is for weighing to material in described first scale hooper (4), second sensor (8) is connected with the second scale hooper (9), described second sensor (8) is for weighing to material in described second scale hooper (9), first weighing controller (5) output terminal is connected with the first feeding controller (1) input end, described first weighing controller (5) is for described first feeding controller (1) control signal, first weighing controller (5) output terminal is connected with the first scale hooper (4) Valve controlling end, described first weighing controller (5) signal is for controlling the dispensing valve of the first scale hooper (4), second weighing controller (10) output terminal is connected with the second feeding controller (6) input end, described second weighing controller (10) is for described second feeding controller (6) control signal, second weighing controller (10) output terminal is connected with the second scale hooper (9), described second weighing controller (10) signal is for controlling the dispensing valve of the second scale hooper (9), first sensor (3) output terminal is connected with the first weighing controller (5) input end, second sensor (8) output terminal is connected with the second weighing controller input end (10).

Touch-screen (11) signal end is connected with the first weighing controller (5) signal end and the second weighing controller (10) signal end respectively.

In one embodiment of the invention, with reference to Fig. 1, double weighing system of the present invention is provided with the first weighing controller (5) and the second weighing controller (10).Described first weighing controller (5) and the second weighing controller (10) produce high speed, middling speed, low speed control signals according to touch-screen (11) given weight by setting ratio respectively, control the first feed hopper (2) and the second feed hopper (7) respectively reinforced according to high speed, middling speed, low speed after described first feeding controller (1) and the second feeding controller (6) receive this signal respectively.Described first sensor (3) sends weight of material signal to the first weighing controller (5), and described second sensor (8) sends weight of material signal to the second weighing controller (10).First weighing controller (5) and the second weighing controller (10) control the first feeding controller (1) according to composite slide filtering algorithm respectively and the second feeding controller (6) feeds in raw material.

First sensor (3) detects that weight of material reaches setting, first weighing controller (5) sends this signal to touch-screen (11), second sensor (8) detects that weight of material reaches setting, second weighing controller (10) sends this signal to touch-screen (11), and touch-screen (11) controls the first scale hooper (4) dispensing valve and the second scale hooper (9) dispensing valve according to the first weighing controller (5) received and the second weighing controller (10) signal.

Touch-screen (11) receives and manually inputs weighing-up wave.Vary in weight according to weighing and automatically control to use single station or double mode to feed in raw material.

As described in Figure 2, the Weighing method that the present invention utilizes the double weighing system of the present embodiment to realize comprises the following steps:

Step 101: touch-screen (11) selects single station method to weigh according to weight of weighing or double method is weighed.

Step 102: feeding controller controls feed hopper implement reinforced with high speed, middling speed, low speed respectively.

Step 103: scale hooper is weighed, obtains weight data.

Step 104: weighing controller adopts composite slide filtering algorithm to control reinforced process according to the weight data detected.

The detailed process of composite slide filtering algorithm: the N number of data of continuous acquisition, and arrange in order, be just placed on backmost when often sampling a new data, those data simultaneously collected foremost are thrown away.Remove the maximal value in these N number of data and minimum value again, then calculate the arithmetic mean of remaining (N-2) individual data.Then time sampling of the rear kth of process exports after filtering for:

$\stackrel{\‾}{W\left(k\right)}=\frac{1}{N-2}\[\underset{i=0}{\overset{N-1}{\Σ}}{W}_{k-i}-W_{(k-imax)}-W_{k-i\min )}\]$

In formula, W _k-ibe (k-i) secondary sampling Output rusults, W _(k-imax)and W _(k-imin)for maximal value corresponding in the N number of data of continuous acquisition and minimum value.

Step 105: meeting weighs requires that touch-screen (11) determines blowing.

In one embodiment of the invention, if weight of weighing is little, then touch-screen (11) selects single station weighting manner, and now two stations weigh discriminably, side by side, and efficiency is high.If weigh, weight is large, then touch-screen (11) selects double weighting manner, and now two stations together weigh, and precision is accurate.

Below illustrate invention has been.Obviously; realization of the present invention is not subject to the restrictions described above; as long as have employed method of the present invention design and the various improvement carried out of technical scheme, or design of the present invention and technical scheme directly applied to other occasion, all in protection scope of the present invention without improvement.

Claims (3)

1. double weighing system, comprising: the first feed hopper, the first feeding controller, first sensor, the first scale hooper, the first weighing controller, the second feed hopper, the second feeding controller, the second sensor, the second scale hooper, the second weighing controller, touch-screen.It is characterized in that: described first feeding controller (1) is respectively with high speed, middling speed, low speed realizes the first feed hopper (2) mass transport, second feeding controller (6) is respectively with high speed, middling speed, low speed realizes the second feed hopper (7) mass transport, first feeding controller (1) is connected with the first feed hopper (2), second feeding controller (6) is connected with the second feed hopper (7), first sensor (3) is connected with the first scale hooper (4), described first sensor (3) is for weighing to material in described first scale hooper, second sensor (8) is connected with the second scale hooper (9), described second sensor (8) is for weighing to material in described second scale hooper, first weighing controller (5) output terminal is connected with the first feeding controller (1) input end, described first weighing controller (5) is for described first feeding controller (1) control signal, first weighing controller (5) output terminal is connected with the first scale hooper (4) Valve controlling end, described first weighing controller (5) signal is for controlling the dispensing valve of the first scale hooper (4), second weighing controller (10) output terminal is connected with the second feeding controller (6) input end, described second weighing controller (10) is for described second feeding controller (6) control signal, second weighing controller (10) output terminal is connected with the second scale hooper (9), described second weighing controller (10) signal is for controlling the dispensing valve of the second scale hooper (9), first sensor (3) output terminal is connected with the first weighing controller (5) input end, second sensor (8) output terminal is connected with the second weighing controller input end (10).

2. double weighing system as claimed in claim 1, is characterized in that: described touch-screen (11) selects single station to weigh according to given weigh automatic decision or double weighs.

3. double weighing system as claimed in claim 1, it is characterized in that: described first weighing controller (5) and the second weighing controller (10) adopt composite slide filtering algorithm, when realizing eliminating rapid weighing, LOAD CELLS is owing to being subject to the value of vibration and material impact power mutagenesis and random non-disturbance by a small margin smoothly, improve weighing precision, then time sampling of the rear kth of process exports after filtering for:

$\stackrel{\‾}{W\left(k\right)}=\frac{1}{N-2}\[\underset{i=0}{\overset{N-1}{\Σ}}{W}_{k-i}-W_{(k-imax)}-W_{k-i\min )}\]$

In formula,

W _k-ibe (k-i) secondary sampling Output rusults, W _(k-imax)and W _(k-imin)for maximal value corresponding in the N number of data of continuous acquisition and minimum value.