CN203094480U - High-precision membrane metering system - Google Patents
High-precision membrane metering system Download PDFInfo
- Publication number
- CN203094480U CN203094480U CN 201320004166 CN201320004166U CN203094480U CN 203094480 U CN203094480 U CN 203094480U CN 201320004166 CN201320004166 CN 201320004166 CN 201320004166 U CN201320004166 U CN 201320004166U CN 203094480 U CN203094480 U CN 203094480U
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- China
- Prior art keywords
- cylinder
- metering
- electronic scale
- diaphragm
- control box
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
- Basic Packing Technique (AREA)
Abstract
The utility model discloses a high-precision membrane metering system comprising a hopper, a membrane metering valve, an electronic scale and a control box. The upper end of the membrane metering valve is connected with the hopper, the lower end of the membrane metering valve is connected with a charging basket, and the charging basket is connected with the electronic scale. An air cylinder of the membrane metering valve is connected with a gas circuit extracted by the control box, a programmable logic controller (PLC) circuit in the control box is connected with the electronic scale, a weight signal of the electronic scale is transmitted to the PLC circuit, the PLC circuit controls the air cylinder to move through a pneumatically-controlled valve, and therefore the opening degree of a membrane cylinder is controlled. The high-precision membrane metering system has the advantages that materials and rotating mechanical parts are completely separated, the materials cannot be polluted, equipment is not corroded, and requirements for high-speed filling and high-precision metering are also met.
Description
Technical field
The utility model relates to the powder of chemical pharmaceutical, food service industry or the weight metering equipment in the granule treatment facility, particularly a kind of high precision diaphragm metering system.
Background technology
Powder metering is an important link in the powder handling, as batching, the weight metering of can.Mainly contain equipment such as screw rod metering, rotary valve metering, combine valve metering at present in powder weight metering field.All there be contacting of rotary machine parts and material in these metering outfits.The easy contaminated material of employed lubricant medium of rotary machine, the corrosive property material also corrodes the rotary machine parts easily.
Be difficult on metering speed and the measuring accuracy and obtain complex optimum, high-precision measuring often will be obtained by tiny flow quantity, for example, and the screw rod feeding.To experience the very long filling time like this; Can't avoid contacting of material and mechanical rotation parts; Metering outfit inside is difficult to clean, and can't satisfy chemistry, the specific demand of pharmaceutical field.
The utility model content
Technical problem to be solved in the utility model is that a kind of high precision diaphragm metering system that satisfies high-speed canning, high-precision measuring requirement will be provided.
In order to solve above technical matters, the utility model provides a kind of high precision diaphragm metering system, comprise hopper, metering diaphragm valve, electronic scale and control box, metering diaphragm valve upper end is connected with hopper, the lower end is connected with charging basket, charging basket is connected with electronic scale, the cylinder of metering diaphragm valve is connected with the gas circuit that control box is drawn, PLC circuit in the control box is connected with electronic scale, the weight signal of electronic scale is sent to the PLC circuit, the PLC circuit moves by the Air control valve control cylinder, thus the aperture of control cylindrical diaphragm.
Described metering diaphragm valve comprises housing, cylinder, clamping bar, diplopore hinge, cylindrical diaphragm and linear bearing; Two cylinders are installed in the housing both sides in opposite directions, and the gas circuit that the air intake-exhaust mouth and the control box of cylinder are drawn is connected, and the driving cylinder advances or retreats; Four clamping bars are by diplopore hinge set diamondwise quadrangle in the housing, diplopore hinge on two diagonal angles of rhombus clamping bar is connected with the push rod of two cylinders, rhombus clamping bar in addition two diagonal angles is connected with the connecting rod of linear bearing on being contained in housing, provide gravity to support to clamping bar, and guarantee that two diagonal angle hinge-points move along center line, make cylindrical diaphragm can be closed in midway location; Linear bearing and cylinder are positioned at same plane, and become 90 degree angles with cylinder; The flexible partition tube is placed in the rhombus clamping bar.
When two cylinders advanced, rhombus clamping bar alteration of form, flexible partition tube were subjected to the clamping bar extruding to become oval cross section by round section, and the cylindrical diaphragm sectional area diminishes, and promptly valve opening diminishes; When two cylinders are shifted the end onto, collide in two diagonal angles of rhombus clamping bar, and cylindrical diaphragm is pressed into a line, forms complete closed.
The PLC circuit is by output signal control Air control valve position, and the decision cylinder advances or retreats or original position stop, and the aperture of corresponding cylindrical diaphragm reduces respectively, increases or stops.Electronic scale provides weight signal to the PLC circuit, by the weight differentiate is handled, can generate the mass flow signal.By to the control of diaphragm valve aperture, reach the purpose of regulating flow.
Superior effect of the present utility model is: adopt the mode of multi-rate variable in pouring process, taken into account two aspects of filling speed and filling accuracy simultaneously.Cut off contacting of mechanical movement parts and material effectively by flexible partition, avoided the corrosion of the pollution of material or material to component of machine.Also bring great convenience for cleaning with the material mating surfaces.Satisfy pharmacy, special requirements of industries such as food and chemical industry.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model metering diaphragm tube;
Fig. 3 is the birds-eye view of Fig. 2;
Fig. 4 is a schematic block circuit diagram of the present utility model;
Fig. 5 is the utility model syllogic control diagram of curves;
The number in the figure explanation
1-hopper; 2-metering diaphragm valve;
3-charging basket; 4-electronic scale;
5-control box; 6-housing;
7-cylinder; 8-diplopore hinge;
9-cylindrical diaphragm; 10-clamping bar;
11-linear bearing; 12-Air control valve;
13-flow regulating valve; 14-silencer;
15-PLC circuit.
The specific embodiment
See also shown in the accompanying drawing, the utility model will be further described.
As shown in Figure 1, the utility model provides a kind of high precision diaphragm metering system, comprise hopper 1, metering diaphragm valve 2, electronic scale 4 and control box 5, metering diaphragm valve 2 upper ends are connected with hopper 1, the lower end is connected with charging basket 3, charging basket 3 is connected with electronic scale 4, the cylinder 7 of metering diaphragm valve 2 is connected with the gas circuit that control box 5 is drawn, 5 PLC circuit 15 is connected with electronic scale 4 in the control box, the weight signal of electronic scale 4 is sent to PLC circuit 15, PLC circuit 15 moves by Air control valve 12 control cylinders 7, thus the aperture of control cylindrical diaphragm 9.
As shown in Figures 2 and 3, described metering diaphragm valve 2 comprises housing 6, cylinder 7, clamping bar 10, diplopore hinge 8, cylindrical diaphragm 9 and linear bearing 11; Two cylinders 7 are installed in housing 6 both sides in opposite directions, and the air intake-exhaust mouth of cylinder 7 is connected with the gas circuit that control box 5 is drawn, and driving cylinder 7 advances or retreats; Housing 6 interior four clamping bars 10 are formed the rhombus quadrangle by diplopore hinge 8, diplopore hinge 8 on two diagonal angles of rhombus clamping bar 10 is connected with the push rod of two cylinders 7, rhombus clamping bar 10 two diagonal angles in addition is connected with the connecting rod of linear bearing 11 on being contained in housing 6, provide gravity to support to clamping bar 10, and guarantee that two diagonal angle hinge-points move along center line, make cylindrical diaphragm 9 can be closed in midway location; Linear bearing 11 is positioned at same plane with cylinder 7, and spends angle for 7 one-tenth 90 with cylinder; Flexible partition tube 9 is placed in the rhombus clamping bar 10.
When two cylinders 7 advanced, rhombus clamping bar 10 alterations of form, flexible partition tube 9 were subjected to clamping bar 10 extruding to become oval cross section by round section, and cylindrical diaphragm 9 sectional areas diminish, and promptly valve opening diminishes; When two cylinders 7 are shifted the end onto, collide in 10 two diagonal angles of rhombus clamping bar, and cylindrical diaphragm 9 is pressed into a line, forms complete closed.
As shown in Figure 4, PLC circuit 15 is by output signal control Air control valve 12 positions, and decision cylinder 7 advances or retreats or original position stop, and the aperture of corresponding respectively cylindrical diaphragm 9 reduces, and increases or stops.Electronic scale 4 provides weight signal to PLC circuit 15, by the weight differentiate is handled, can generate the mass flow signal.By to the control of diaphragm valve 9 apertures, reach the purpose of regulating flow.
As shown in Figure 5, guarantee accurate measurement, can adopt the mode of different metering section different flows for reaching to improve under the filling speed prerequisite.Can reduces flow early stage hurry up when arriving the can value soon, improve filling accuracy.In the syllogic controlling mechanism, weighing is divided into three interval W1, and W2, W3 carries out, and adopts big flow Q1(slightly to measure respectively), the smart metering of intermediate flow Q2 and micrometeor Q3() three kinds of flow filling measurements, finally reach accurate weight W.
Initial fill adopts the corresponding big aperture of big flow Q1(), electronic scale 4 feedback weighing-up waves inform that PLC circuit 15 calculates the weight.When weight arrived W1, cylinder 7 advanced, and cylindrical diaphragm 9 apertures diminish, and flow reduces, and system's control cylinder 7 stops when arriving Q2.Material is crossed cylindrical diaphragm 9 with the Q2 steady flow.This process repeats to arrive weight W 3 until system with the can of Q3 flow, and diaphragm valve 9 is closed fully.
Working process of the present utility model is as follows:
Input can expected value W and interval value W1, W2, W3 import 3 corresponding flow value Q1 in interval, Q2, Q3 on the control box touch-screen.Diaphragm valve 9 is closed in the control system initialization, removes the charging basket deadweight automatically.After adding material in the hopper 1, start metering process.
Claims (2)
1. high precision diaphragm metering system, comprise hopper, metering diaphragm valve, electronic scale and control box, it is characterized in that: metering diaphragm valve upper end is connected with hopper, the lower end is connected with charging basket, and charging basket is connected with electronic scale, and the cylinder of metering diaphragm valve is connected with the gas circuit that control box is drawn, PLC circuit in the control box is connected with electronic scale, the weight signal of electronic scale is sent to the PLC circuit, and the PLC circuit moves by the Air control valve control cylinder, thus the aperture of control cylindrical diaphragm.
2. high precision diaphragm metering system according to claim 1 is characterized in that: described metering diaphragm valve comprises housing, cylinder, clamping bar, diplopore hinge, cylindrical diaphragm and linear bearing; Two cylinders are installed in the housing both sides in opposite directions, the gas circuit that the air intake-exhaust mouth and the control box of cylinder are drawn is connected, four clamping bars are by diplopore hinge set diamondwise quadrangle in the housing, diplopore hinge on two diagonal angles of rhombus clamping bar is connected with the push rod of two cylinders, rhombus clamping bar in addition two diagonal angles is connected with the connecting rod of linear bearing on being contained in housing, linear bearing and cylinder are positioned at same plane, and become 90 degree angles with cylinder; The flexible partition tube is placed in the rhombus clamping bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320004166 CN203094480U (en) | 2013-01-06 | 2013-01-06 | High-precision membrane metering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320004166 CN203094480U (en) | 2013-01-06 | 2013-01-06 | High-precision membrane metering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203094480U true CN203094480U (en) | 2013-07-31 |
Family
ID=48845907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320004166 Expired - Lifetime CN203094480U (en) | 2013-01-06 | 2013-01-06 | High-precision membrane metering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203094480U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057730A (en) * | 2013-01-06 | 2013-04-24 | 上海威泽尔机械设备制造有限公司 | High-precision diaphragm metering system |
-
2013
- 2013-01-06 CN CN 201320004166 patent/CN203094480U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057730A (en) * | 2013-01-06 | 2013-04-24 | 上海威泽尔机械设备制造有限公司 | High-precision diaphragm metering system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |
|
| CX01 | Expiry of patent term |