CN206528071U - A kind of cooling circuit of longitudinal stretching unit - Google Patents
A kind of cooling circuit of longitudinal stretching unit Download PDFInfo
- Publication number
- CN206528071U CN206528071U CN201720217169.1U CN201720217169U CN206528071U CN 206528071 U CN206528071 U CN 206528071U CN 201720217169 U CN201720217169 U CN 201720217169U CN 206528071 U CN206528071 U CN 206528071U
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- temp controlled
- lines
- controlled meter
- magnetic valve
- relay
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Abstract
The utility model belongs to biaxially oriented polystyrene technical field of processing equipment, a kind of cooling circuit of longitudinal stretching unit, including：Multiple temp controlled meters, the relay with temp controlled meter number corresponding number and the magnetic valve with temp controlled meter number corresponding number, each described temp controlled meter connects L lines and N lines, the cooling signal output line of each temp controlled meter connects the coil of each relay respectively, the normal open switch of each relay forms series arm with each magnetic valve respectively, the series arm formation parallel branch, parallel branch is connected between L lines and the connection of N lines.The utility model can install the magnetic valve for cooling down circuit concentratedly, be easy to maintenance.
Description
Technical field
The utility model belongs to biaxially oriented polystyrene technical field of processing equipment, more particularly to a kind of longitudinal stretching machine
The cooling circuit of group.
Background technology
MDO equipment (Machine direction orientation longitudinal stretchings unit) is BOPS (Biaxially
Oriented polystyrene biaxially oriented polystyrenes) the vertical nucleus equipment drawn, in BOPS sheet production lines, slab is from mould
After head comes out, heat exchange is carried out through each steel riders of MDO, and with steel rider, while realizing longitudinal stretching according to the speed difference of each steel rider.
In MDO equipment, multiple temp controlled meters are provided with, the temperature for monitoring and controlling steel rider, if temperature is too high, will pass through cooling
Circuit performs corresponding cooling treatment, as shown in figure 1, in the cooling circuit of each temp controlled meter, the electromagnetism on each temp controlled meter
Valve is directly connected on the cooling signal output end of temp controlled meter, the cooling signal line of temp controlled meter 1 to temp controlled meter 8 and connects magnetic valve respectively
YV1 to magnetic valve YV8, when needing to be cooled down, magnetic valve will carry out corresponding actions, control follow-up cooling to perform dynamic
Make, complete to need the temperature control region of cooling treatment to carry out cooling down operation each.Because temp controlled meter installs scattered, when some electromagnetism
When valve breaks down, it will influence to cool down the working condition of circuit, scattered installation is also not easy to maintenance.
Utility model content
The purpose of the utility model embodiment is to provide a kind of cooling circuit of longitudinal stretching unit, will can cooled down electric
The magnetic valve on road is installed concentratedly, is easy to maintenance.
The utility model embodiment is realized in：
A kind of cooling circuit of longitudinal stretching unit, including：Multiple temp controlled meters, the relay with temp controlled meter number corresponding number
Device and the magnetic valve with temp controlled meter number corresponding number, each described temp controlled meter connect L lines and N lines, each temp controlled meter it is cold
But output line connects the coil of each relay respectively, the normal open switch of each relay respectively with each magnetic valve
Series arm is formed, the series arm formation parallel branch, parallel branch is connected between L lines and the connection of N lines.
A kind of cooling circuit of described longitudinal stretching unit, in addition to insurance, the L lines pass sequentially through insurance, parallel connection
Branch road is connected with N lines
The utility model embodiment by the cut-in relay on the cooling signal line of temp controlled meter, by relay switch come
Magnetic valve is controlled, magnetic valve is installed concentratedly, is easy to maintenance, when magnetic valve is problematic, nor affects on the normal work of temp controlled meter.
Brief description of the drawings
Fig. 1 is the cooling signal wiring diagram of each temp controlled meter in the prior art；
Fig. 2 is the cooling signal wiring diagram of each temp controlled meter in the utility model；
Fig. 3 is the wiring diagram of cooling circuit in the utility model.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
The utility model embodiment by the cut-in relay on the cooling signal line of temp controlled meter, by relay switch come
Magnetic valve is controlled, magnetic valve is installed concentratedly, is easy to maintenance, when magnetic valve is problematic, nor affects on the normal work of temp controlled meter.
Of the present utility model implement is described in detail below in conjunction with specific embodiment：
As shown in Figures 2 and 3, cooling circuit include multiple temp controlled meters, with the relay of temp controlled meter number corresponding number and
With the magnetic valve of temp controlled meter number corresponding number, each described temp controlled meter connects L lines and N lines, the cooling letter of each temp controlled meter
Number output line connects the coil of each relay respectively, and the normal open switch of each relay is formed with each magnetic valve respectively
Series arm, these series arms formation parallel branch, L lines (live wire) by insuring successively, parallel branch and N lines (zero line) connect
Connect.In figure, temp controlled meter is 8, temp controlled meter 1 to temp controlled meter 8, and relay is 8, relay KA1 to relay KA8, magnetic valve
For 8, magnetic valve YV1 is insured for 2 (F1 and F2), insurance can also be 1 certainly, can also every series arm to YV8
On respectively plus one insurance.So when temp controlled meter exports cooling signal, electricity on the coil of relay, the switch of relay will be closed
Close, magnetic valve is controlled, so as to perform cooling down operation.Each magnetic valve works independently, and will not influence each other, can individually tie up
Repair, install convenient maintenance concentratedly.
In embodiment of the present utility model, temp controlled meter cooling output is directly connect into magnetic valve and is changed to be connected to auxiliary reclay
On, magnetic valve is controlled using the contact of auxiliary reclay, is conducive to maintenance.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, it is all at this
Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (2)
1. a kind of cooling circuit of longitudinal stretching unit, it is characterised in that including：It is multiple temp controlled meters, corresponding to temp controlled meter number
The relay of number and the magnetic valve with temp controlled meter number corresponding number, each described temp controlled meter connect L lines and N lines, it is described each
The cooling signal output line of temp controlled meter connects the coil of each relay respectively, the normal open switch of each relay respectively with
Each magnetic valve formation series arm, the series arm formation parallel branch, parallel branch is connected to L lines and N lines connect it
Between.
2. a kind of cooling circuit of longitudinal stretching unit according to claim 1, it is characterised in that：Also include insurance, institute
State L lines and pass sequentially through insurance, parallel branch and the connection of N lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720217169.1U CN206528071U (en) | 2017-03-07 | 2017-03-07 | A kind of cooling circuit of longitudinal stretching unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720217169.1U CN206528071U (en) | 2017-03-07 | 2017-03-07 | A kind of cooling circuit of longitudinal stretching unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206528071U true CN206528071U (en) | 2017-09-29 |
Family
ID=59918347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720217169.1U Active CN206528071U (en) | 2017-03-07 | 2017-03-07 | A kind of cooling circuit of longitudinal stretching unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206528071U (en) |
-
2017
- 2017-03-07 CN CN201720217169.1U patent/CN206528071U/en active Active
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