Be used for the plastifier automatic weighing and dispensing system that the PVC CABLE MATERIALS is produced
The present invention relates to a kind of error that can reduce metering, avoid the waste in the plastifier blowing weighing process, alleviate labor strength, the plastifier automatic weighing and dispensing system that is used for the production of PVC CABLE MATERIALS that improves the quality of products belongs to automatic weighing and dispensing system and makes the field.
In the present domestic PVC CABLE MATERIALS production run, the batching adding mode of plastifier is by the artificial platform balance Weighing of using, the artificial adding in the high mixer hybrid technique, this feed way is in the long-term production process, owing to be manual operation, therefore can error in dipping appear, weight is incorrect, occurs wasting phenomenon often in blowing and the reinforced process, and labor strength is very big, thereby influence product quality.
Summary of the invention
Purpose of design: avoid the weak point in the background technology, design a kind of can weighing automatically, reduce the error of metering, avoid the waste in the plastifier blowing weighing process, alleviate labor strength, the plastifier automatic weighing and dispensing system that is used for the production of PVC CABLE MATERIALS that improves the quality of products.
Design proposal: to achieve these goals, the present invention has done following design: 1, being connected with the design of three high-performance LOAD CELLS on the weighing hopper, is one of technical characterictic of the present invention.The purpose of doing like this is: the one, after plastifier falls into weighing hopper, the weight of weighing hopper will increase, the gravity that is subjected to of high-performance LOAD CELLS will become big then, the gravity that increases be exactly add the gravity of plastifier, the high-performance LOAD CELLS transfers out information then, thereby realizes weighing automatically; Two is three weight that the high-performance LOAD CELLS can be born weighing hopper, plays the effect of fixture.2, weighing hopper upper end charging aperture has 4 plastifier delivery pipes, and the discharging opening top of plastifier delivery pipe is provided with the design of pneumatic charging ball valve, is two of technical characterictic of the present invention.The purpose of doing like this is: the one, because 4 plastifier delivery pipes can be carried four kinds of different plastifier, thereby satisfy plastifier batching type requirements; The 2nd, because the controlled case control of pneumatic charging ball valve, by pneumatic charging ball valve open or close realize the interpolation of plastifier or stop to add, by the information feedback of high-performance LOAD CELLS to control box, when certain plastifier added specified amount to, control box will control the pneumatic charging ball valve of appointment and cut out.3, there is the blowing pipeline charging aperture top of high mixer upper end, and the blowing pipeline is provided with the design of pneumatic blowing ball valve, is three of technical characterictic of the present invention.The purpose of doing like this is: control plastifier by the switch of controlling pneumatic blowing ball valve and fall into high mixer.
Technical scheme: be used for the plastifier automatic weighing and dispensing system that the PVC CABLE MATERIALS is produced, it comprises support, support is provided with weighing hopper and weighing hopper is provided with the high-performance LOAD CELLS, high-performance LOAD CELLS output signal connects the automatically controlled signal end of control box, weighing hopper upper end charging aperture is provided with pneumatic charging ball valve, discharging opening is provided with pneumatic discharging ball valve, the gas control signal end of pneumatic discharging ball valve and pneumatic charging ball valve signal termination control box.
The present invention compares with background technology, and the one, automatic weighing and dispensing system can effectively be avoided the people in the long-term production process be the weight error that occurs in weighing, and manually weighs, plastifier waste in the reinforced process; The 2nd, working environment improves, and alleviates labor strength, composition error≤0.02%FS, thus improve the quality of products; The 3rd, total system is simple to operate, and is easy to use.
Description of drawings
Fig. 1 is the plastifier automatic weighing and dispensing system master TV structure figure that produces for the PVC CABLE MATERIALS.
Embodiment 1: with reference to accompanying drawing 1.The plastifier automatic weighing and dispensing system that is used for the production of PVC CABLE MATERIALS comprises support 8 and high mixer 1,8 are provided with weighing hopper 4 and weighing hopper 4 is provided with high-performance LOAD CELLS 5 on the support, high-performance LOAD CELLS 5 output signals connect the automatically controlled signal end of control box 9, weighing hopper 4 upper end charging apertures are provided with pneumatic charging ball valve 7, discharging opening is provided with pneumatic discharging ball valve 2, the outlet of pneumatic discharging ball valve 2 is communicated with the gas control signal end of pneumatic discharging ball valve 2 and pneumatic charging ball valve 7 signal termination control boxs 9 by vomit pipe 3 with high mixer 1 import.
Described pneumatic charging ball valve 7 is that one or more and pneumatic charging ball valve 7 imports are communicated with plastifier delivery pipe 6.
Described control box 9 is made up of weight display 10 electric cabinets 11 and Pneumatic controlled box 12, and the formation of its every partial function is prior art, is not described herein at this.
Described high-performance LOAD CELLS 5 one ends are connected on the weighing hopper 4, and the other end is connected on the support 8, make weighing hopper 4 unsettled.
The outer periphery that is arranged in weighing hopper 4 of 5 fens trisections of described high-performance LOAD CELLS.
Embodiment 2: on the basis of embodiment 1, PVC plastifier automatic weighing and dispensing system can be according to the different technologies requirement of filling a prescription, the corresponding plastifier formulation weight of input in weight display, and start key is pressed in affirmation.System is according to the input data, and 4 groups of (8) speed charging pneumatic ball valves in the corresponding control input channel accurately dispose each plastifier according to the order of sequence and enter in the weighing hopper and weigh, and display shows actual weight in the fill process.After various plastifier configurations were finished, display showed the general assembly (TW) of each plastifier actual weight and various plastifier additions respectively.Press the blowing key, the pneumatic baiting valve in weighing hopper bottom is opened, and the plastifier for preparing in the weighing hopper can directly be put into high mixer and enter mixed processes, and each feed time is decided 2 minutes blowing time according to formulation weight.After blowing was finished, display weight showed 0.0Kg, and system closes dispensing valve automatically, returns original state, and next time, batching only needed to press start key, and blowing only need be pressed the blowing key.If clout is arranged in the weighing hopper, display weight shows that not in 0 position system can protect automatically, can not start.
At plastifier delivery pipe 64 groups of speed pneumatic ball valves 7 are installed, 4 groups of pneumatic valve discharging openings are placed weighing hopper inboard suitable for reading respectively, support weighing hopper 4 and LOAD CELLS 5 by support 8, weighing hopper blowing pipe outlet is installed blowing pneumatic ball valve 2, and whole weighing device can be installed in high mixer top.Drain hole can directly insert high mixer charging aperture position, and batching can directly be imported in the weight display according to the prescription requirement, and system carries out automatic blending, composition error≤0.02%FS according to the input data.Support height can be decided according to equipment needed thereby, and the weighing hopper volume requires to determine according to Recipe.
It will be appreciated that: though above-described embodiment has been done more detailed text description to mentality of designing of the present invention, but these text descriptions, just the simple text of mentality of designing of the present invention is described, rather than to the restriction of mentality of designing of the present invention, any combination, increase or modification that does not exceed mentality of designing of the present invention all falls within the scope of the present invention.