CN207052377U - Screw continuous lead sheathing extruder body temperature automaton - Google Patents
Screw continuous lead sheathing extruder body temperature automaton Download PDFInfo
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- CN207052377U CN207052377U CN201721011766.5U CN201721011766U CN207052377U CN 207052377 U CN207052377 U CN 207052377U CN 201721011766 U CN201721011766 U CN 201721011766U CN 207052377 U CN207052377 U CN 207052377U
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- regulating valve
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- thermocouple
- body temperature
- temp controlled
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Abstract
The utility model discloses screw continuous lead sheathing extruder body temperature automaton, including PLC, single loop temp controlled meter, cooling water inlet pipe road, thermocouple, electric heater and two double loop temp controlled meters, it is respectively arranged with cooling water inlet pipe road and back, middle part and the corresponding electric controlled regulating valve A in bottom, electric controlled regulating valve B and electric controlled regulating valve C, thermocouple of the single loop temp controlled meter respectively with electric controlled regulating valve A and back is connected, one of double loop temp controlled meter respectively with electric controlled regulating valve B, the thermocouple of waist connects with electric heater, another double loop temp controlled meter respectively with electric controlled regulating valve C, the thermocouple of underbelly connects with electric heater, PLC is connected with single loop temp controlled meter and double loop temp controlled meter respectively.The utility model can automatically adjust the temperature at each position of lead extruder fuselage, so as to reach the purpose of reducing hand labor intensity, reducing human cost, raising degree of regulation.
Description
Technical field
Lead extruder technical field is the utility model is related to, it is automatic to relate in particular to screw continuous lead sheathing extruder body temperature
Control device.
Background technology
In recent years, the rapid growth of China's economy provides the huge market space for wires and cables industry, electric power, leads to
News, railway, track traffic, ship, automobile, petrochemical industry, building（Real estate）, highway, the industry such as household electrical appliances keep larger throwing
Money scale, the wires and cables industry being closely related with these industries have welcome development climax.
It is convenient with soldering and sealing that lead has the characteristics that to be easily bent, and is adopted as the major metal sheath material of cable always.
With greatly developing for submarine cable and extra-high-tension cable, splicer's skill is continuously squeezed to screw and proposes high requirement.
Lead is a kind of silver grey non-ferrous metal, has metallic luster.The density of lead is 11.34g/cm3, fusing point is 327 DEG C.It is one
Germplasm is soft and extendible metal, and its tensile strength is 130kg/cm2, rate elongation during fracture is up to 100%.Screw connects
Continuous lead extruder operation principle and extruding machine are similar, the lead liquid input of melting are contained into lead, after being cooled down slightly to lead liquid, i.e., by spiral shell
Bar rotary extrusion, sheath is covered be pressed in through fuselage on cable insulation.The rotating speed of screw rod is about 4~12r/min, the rotating speed of screw rod
It should be adjusted according to the cooling velocity of lead liquid and the linear velocity that goes out of cable.Body temperature is generally at 240 DEG C, when too high（260
℃）Extruded velocity is fast, but facial pallor creases easily, and screw rod can be caused to skid when more than 260 DEG C, lead liquid can push away up；Temperature is relatively low
It is relatively low, yield can be influenceed, screw rod resistance is increased severely, and cause equipment breakdown.Therefore, to lead extruder back, in
Portion, the temperature control of bottom will directly affect the quality of lead-covered cable.
Wherein, the temperature control of whole lead extrusion fuselage can be divided into set-up procedure, start-up course and production process.
（1）, set-up procedure be the body temperature by lead extruder before lead extrusion, body temperature is increased to top as 305 DEG C,
320 DEG C of middle part, 340 DEG C of bottom.This temperature-rise period is synchronous with the molten lead process of lead melting furnace to be carried out.
（2）, start-up course temperature control be whole temperature controlled difficult point and emphasis, press the requirement of splicer's skill,
In the defined time, temperature is dropped to from set-up procedure temperature, top is down to 210~230 DEG C；Middle part is down to 220~230
℃；Bottom is down to 270~290 DEG C.In start-up course, it is desirable to upper, middle and lower portion body temperature according to regular hour order and
Temperature decline curve is cooled, and it is a progressive process that temperature, which declines, and temperature, which declines, requires steady.
（3）The control in the temperature control requirement fuselage upper, middle and lower portion of production process under a stable process environments,
That is fuselage upper, middle and lower portion temperature fluctuation control is in the range of≤5 DEG C.
At present, traditional body temperature control mode is specially using control manually：By manually observing the machine of being arranged on
Temp controlled meter with it is adjusted manually to glass rotameter, flow control is carried out to cooling water, so as to realizing to temperature
The control of degree, as shown in Figure 1.But there is following defect for this artificial temperature control method：（1）, will to the technology of operating personnel
Ask high, it is necessary to can operate the computer after strict training and skilled operation；（2）, operating personnel's mental burden weight, entirely giving birth to
During production, operating personnel must at every moment pay attention to every operating mode situation, it is impossible to have the least bit to loosen；（3）, degree of regulation it is low,
Effectively temperature can not be made to reach setting value.
In addition, the difficult point of startup control process, in needing continuous improvement screw speed in temperature-fall period, rotating speed carries
Height can accordingly bring substantial amounts of heat energy, and the change of heat energy adds the difficulty to control, additionally, due to underbelly lead amount itself
Greatly, heat is high, corresponding slow, is equally the difficulty that temperature is adjusted in start-up course.
Utility model content
The purpose of this utility model is solve the above-mentioned problems in the prior art, there is provided screw continuous lead sheathing extruder
Body temperature automaton, the utility model can automatically adjust the temperature at each position of lead extruder fuselage, so as to reach drop
Low hand labor intensity, reduce human cost, improve the purpose of degree of regulation.
To achieve the above object, the technical solution adopted in the utility model is as follows：
Screw continuous lead sheathing extruder body temperature automaton, including PLC, single loop temp controlled meter, double back
Road temp controlled meter, cooling water inlet pipe road, thermocouple and electric heater, the thermocouple be respectively fixedly disposed at back, in
Portion and bottom, the electric heater are respectively fixedly disposed at waist and bottom；Set respectively on the cooling water inlet pipe road
It is equipped with the electric controlled regulating valve A corresponding with back, middle part and bottom, electric controlled regulating valve B and electric controlled regulating valve C, the list
Thermocouple of the loop temp controlled meter respectively with electric controlled regulating valve A and back is connected, and the quantity of the double loop temp controlled meter is two
It is individual, one of double loop temp controlled meter electric heater with electric controlled regulating valve B, the thermocouple of waist and waist respectively
Connection, another double loop temp controlled meter electric heater with electric controlled regulating valve C, the thermocouple of underbelly and underbelly respectively
Connection；The PLC is connected with single loop temp controlled meter and double loop temp controlled meter respectively.
The PLC is connected with touch-screen.
The PLC is connected with recording instrument without paper.
Described body temperature automaton also includes the monitor and alarm being connected with PLC.
The cooling water inlet pipe road includes three water inlet pipes corresponding with back, middle part and bottom respectively,
The electric controlled regulating valve A, electric controlled regulating valve B and electric controlled regulating valve C are separately positioned on three branch pipes.
Using the utility model has the advantage of：
First, the utility model by PLC, single loop temp controlled meter, double loop temp controlled meter, cooling water inlet pipe road,
The body temperature automaton of thermocouple, control regulation valve and electric heater composition, automatically can be adjusted on fuselage respectively
The temperature in portion, middle part and bottom, have it is simple in construction, specific aim is stronger, sensitivity is higher, governing speed faster, degree of regulation
The advantages that higher.The utility model can avoid well because operating personnel cumbersome operating process is unfamiliar with caused by by mistake grasp
Make and cause unnecessary production to slip up, add automation degree of equipment, also overcome and use artificially controlling temperature in the prior art
And existing hand labor intensity Yamato power cost it is high the defects of.
2nd, the utility model is advantageous to the quick setting of control parameter by touch-screen so that whole temperature control operation is more
It is convenient.
3rd, the utility model by recording instrument without paper can record in real time main frame electric current, rotating speed, back, middle part, under
Portion's temperature, it is convenient to monitor significant data in real time and check historical data.
4th, the utility model can send alarm by monitor and alarm when occurring abnormal, improve device
Safety in utilization.
5th, the utility model can meet that each controlling position temperature difference ensures ± 3 when increasing rotating speed in actually controlling
Within DEG C, temperature can be controlled when design temperature is not changed within ± 2 DEG C.
Brief description of the drawings
Fig. 1 is the manually structural representation of temperature control in the prior art.
Fig. 2 is structural representation of the present utility model.
Embodiment
Screw continuous lead sheathing extruder body temperature automaton, including PLC, single loop temp controlled meter, double back
Road temp controlled meter, cooling water inlet pipe road, thermocouple and electric heater, the thermocouple be respectively fixedly disposed at back, in
Portion and bottom, the electric heater are respectively fixedly disposed at waist and bottom；Set respectively on the cooling water inlet pipe road
It is equipped with the electric controlled regulating valve A corresponding with back, middle part and bottom, electric controlled regulating valve B and electric controlled regulating valve C, the list
Thermocouple of the loop temp controlled meter respectively with electric controlled regulating valve A and back is connected, and the quantity of the double loop temp controlled meter is two
It is individual, one of double loop temp controlled meter electric heater with electric controlled regulating valve B, the thermocouple of waist and waist respectively
Connection, another double loop temp controlled meter electric heater with electric controlled regulating valve C, the thermocouple of underbelly and underbelly respectively
Connection；The PLC is connected with single loop temp controlled meter and double loop temp controlled meter respectively.
In the utility model, in order to facilitate the setting of temperature control parameter, the PLC is connected with touch-screen, by touching
Touch the temperature that screen can quickly and easily set back, middle part and bottom to need.Further, the PLC also connects
Recording instrument without paper is connected to, records main frame electric current, rotating speed, back, middle part, temperature of lower in real time by recording instrument without paper, side
Just significant data is monitored in real time and checks historical data.
In the utility model, described body temperature automaton also includes monitor and alarm（Do not show in figure
Go out）, the monitor and alarm are connected with PLC.When monitor has monitored it is abnormal when, monitor passes through PLC
Controller communication reflects that on the touchscreen, PLC controls alarm sound and light alarm.
In the utility model, the cooling water inlet pipe road is relative with back, middle part and bottom respectively including three
Electric controlled regulating valve A, electric controlled regulating valve B and electric controlled regulating valve C are separately positioned on three branch pipes described in the water inlet pipe answered.
In the utility model, the electric control valve is the key equipment that body temperature automatically controls, it must be fulfilled for
Lower condition.Two-port valve；DN=15mm；KVS=0.25~0.4m3/h；Medium is cooling water；The valve linearity is good, 0~100% line
Property；Actuating mechanism controls voltage is DC0~10V, can be controlled by temp controlled meter.It is therefore preferable that the electric control valve using Siemens.
In the utility model, the PLC is the PLC with communication function, from Siemens S7-1200.It is described
Single loop temp controlled meter is that single loop is controlled to flow, and the double loop temp controlled meter is a circuit controls electrical heating, one
Circuit controls cooling water flow.The temp controlled meter has serial communication function, and interface uses RS485；PID is adjusted, and output DC0~
10V controls motor-driven valve；CT is inputted；
The utility model only needs one-key start when needing to automatically adjust, and PLC can be according to being set by touch-screen in advance
Fixed operating temperature, start each position electric controlled regulating valve control in a certain order.In start-up course early stage, due to current temperature
Spend from operating temperature farther out, therefore the opening on cooling water inlet pipe road will be cooled with the maximum open limited, to protect
Card cooling rate reaches technological requirement, therefore realization needs to set the opening maximum and minimum on suitable cooling water inlet pipe road
Value, it is excessive or too small to prevent from being open.
Production process relation control of the present utility model is simple, and disturbance quantity is constant, the heat base taken out of with the outflow of lead
This is constant, is adjusted so as to work as long as touch-screen is set, temperature can keep constant substantially.Equally also used when shutting down in process of production
One key shutdown operation, when producing completion, only the preset temperature in touch-screen need to can be write temp controlled meter by stop key, PLC,
Electric controlled regulating valve is simultaneously closed off, temperature is risen into preset temperature so as to next production and application.
Claims (5)
1. screw continuous lead sheathing extruder body temperature automaton, it is characterised in that：Including PLC, single loop temperature
Control table, double loop temp controlled meter, cooling water inlet pipe road, thermocouple and electric heater, the thermocouple are respectively fixedly disposed at machine
Body, middle part and bottom, the electric heater are respectively fixedly disposed at waist and bottom；The cooling water inlet pipe road
On be respectively arranged with the electric controlled regulating valve A corresponding with back, middle part and bottom, electric controlled regulating valve B and electric controlled regulating valve
C, thermocouple of the single loop temp controlled meter respectively with electric controlled regulating valve A and back are connected, the double loop temp controlled meter
Quantity be two, one of double loop temp controlled meter respectively with electric controlled regulating valve B, the thermocouple of waist and waist
Electric heater connect, another double loop temp controlled meter respectively with electric controlled regulating valve C, the thermocouple of underbelly and underbelly
Electric heater connects；The PLC is connected with single loop temp controlled meter and double loop temp controlled meter respectively.
2. screw continuous lead sheathing extruder body temperature automaton as claimed in claim 1, it is characterised in that：It is described
PLC is connected with touch-screen.
3. screw continuous lead sheathing extruder body temperature automaton as claimed in claim 1 or 2, it is characterised in that：Institute
State PLC and be connected with recording instrument without paper.
4. screw continuous lead sheathing extruder body temperature automaton as claimed in claim 1, it is characterised in that：Described
Body temperature automaton also includes the monitor and alarm being connected with PLC.
5. screw continuous lead sheathing extruder body temperature automaton as claimed in claim 1, it is characterised in that：It is described cold
But water inlet pipeline includes three water inlet pipes corresponding with back, middle part and bottom respectively, the electric controlled regulating valve
A, electric controlled regulating valve B and electric controlled regulating valve C is separately positioned on three branch pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721011766.5U CN207052377U (en) | 2017-08-14 | 2017-08-14 | Screw continuous lead sheathing extruder body temperature automaton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721011766.5U CN207052377U (en) | 2017-08-14 | 2017-08-14 | Screw continuous lead sheathing extruder body temperature automaton |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207052377U true CN207052377U (en) | 2018-02-27 |
Family
ID=61502633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721011766.5U Active CN207052377U (en) | 2017-08-14 | 2017-08-14 | Screw continuous lead sheathing extruder body temperature automaton |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207052377U (en) |
-
2017
- 2017-08-14 CN CN201721011766.5U patent/CN207052377U/en active Active
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