CN211522030U - Optical fiber production Japanese type wire drawing furnace with automatic traction control alarm device - Google Patents
Optical fiber production Japanese type wire drawing furnace with automatic traction control alarm device Download PDFInfo
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- CN211522030U CN211522030U CN201922441673.1U CN201922441673U CN211522030U CN 211522030 U CN211522030 U CN 211522030U CN 201922441673 U CN201922441673 U CN 201922441673U CN 211522030 U CN211522030 U CN 211522030U
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- control cabinet
- intermediate relay
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Abstract
The utility model provides an optic fibre production Japanese wire drawing stove with pull automatic control alarm device, including main part body of the tower backup pad and main control cabinet, main part body of the tower backup pad upper portion installation draw disc device, draw disc device side auxiliary mounting has the pinch roller device, draw disc device and main control cabinet are connected. The utility model relates to an optic fibre production Japanese wire drawing stove with pull automatic control alarm device can realize the effect of the accurate operation of relevant operating personnel of alarm system suggestion in process of production, and then prevents a large amount of scrapping phenomena in the optic fibre production, and automatic control device's radiating effect is showing and is promoting.
Description
Technical Field
The utility model belongs to the optical fiber production equipment field especially relates to optical fiber production Japanese wire drawing stove with pull automatic control alarm device.
Background
Under the normal production condition of the traction device of the Japanese type drawing furnace for producing optical fibers, if the traction device is changed into a manual control state due to the deviation of XY axes, a large amount of optical fibers can be scrapped when the traction device is not changed into an automatic state in time, so that misoperation is caused, and a large amount of resources are wasted. In addition, in the optical fiber production process, the work of electric devices in the control cabinet can generate heat, the heat dissipation effect of the existing control cabinet is poor, and the electric devices in the cabinet body are easy to be abnormal or damaged, so that the automatic control is not facilitated.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an optic fibre production Japanese wire drawing stove with pull automatic control alarm device can realize effectively reducing operating personnel's misoperation, plays the effect of the accurate operation of relevant operating personnel of alarm system suggestion in the production process, can prevent a large amount of scrapping phenomena in the optic fibre production, and automatic control device's radiating effect is showing and is promoting.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the Japanese-type fiber drawing furnace with the automatic traction control alarm device comprises a main body tower body supporting plate and a main control cabinet, wherein a traction disc device is installed at the upper part of the main body tower body supporting plate, a pinch roller device is installed on the side surface of the traction disc device in an auxiliary mode, the traction disc device is connected with the main control cabinet, a manual button and an alarm indicator lamp H are arranged on the main control cabinet, and an isolation signal converter, a first intermediate relay, a second intermediate relay, a digital quantity output module OUT and a power supply are arranged in the main control cabinet;
first intermediate relay includes first intermediate relay coil and first intermediate relay normally open contact, second intermediate relay includes second intermediate relay coil and second intermediate relay normally open contact, digital output module OUT, isolation signal converter, first intermediate relay coil establish ties and this series circuit is connected with the power, alarm indicator H, first intermediate relay normally open contact, second intermediate relay normally open contact establish ties and this series circuit is connected with the power, second intermediate relay coil and manual button series connection and this series circuit are connected with the power.
Further, a base is arranged at the bottom of the main control cabinet, a top plate and an exhaust cover are arranged at the top of the main control cabinet, a cavity which is communicated with the inside and the outside of the main control cabinet is arranged in the top plate, a first groove is formed in the cavity from the upper surface of the top plate downwards, the inner diameter of the first groove is larger than that of the cavity, an electric telescopic rod is arranged in the first groove, the diameter of the exhaust cover is not smaller than that of the first groove, the exhaust cover is positioned above the first groove, and the electric telescopic rod is connected with the exhaust cover;
a first connecting plate, a second connecting plate and a first fan are further arranged in the cavity, the second connecting plate is fixedly connected with the first connecting plate, and the first fan is fixedly connected with the top plate through the second connecting plate and the first connecting plate;
the main control cabinet is internally provided with a mounting plate and a wire arrangement frame, the wire arrangement frame is fixedly mounted on the mounting plate, and the electric telescopic rod and the first fan are respectively connected with the power supply.
Furthermore, the main control cabinet lateral wall is equipped with exhaust passage, and the second fan is installed to this main control cabinet's lateral wall, second fan and exhaust passage phase-match and second fan pass through exhaust passage and the inside intercommunication of main control cabinet, the second fan is connected with the power.
Furthermore, two opposite side walls of the main control cabinet are provided with three exhaust channels and three second fans, and the three exhaust channels on any side wall are respectively positioned at the upper part, the middle part and the lower part of the main control cabinet.
Furthermore, a damping cavity is arranged in the base and comprises a first damping cavity and a second damping cavity, and a partition plate is arranged between the first damping cavity and the second damping cavity;
damping balls and rubber blocks which are closely arranged are uniformly distributed in the first damping cavity, and the damping balls and the rubber blocks are distributed at intervals;
and the springs and the rubber blocks are uniformly distributed in the second damping cavity and are arranged closely, and the springs and the rubber blocks are distributed at intervals.
Furthermore, the manual button and the alarm indicator lamp H are positioned on the outer side of the main control cabinet, the side surface of the main control cabinet where the manual button and the alarm indicator lamp H are positioned is defined as the front surface of the main control cabinet, the surface opposite to the front surface of the main control cabinet is defined as the back surface of the main control cabinet, and the front surface of the main control cabinet is also provided with a display screen, a shutdown button, a start button, an acceleration button, a deceleration button and an automatic button;
the main control cabinet is provided with a cabinet door, the base is provided with a base door, the cabinet door and the base door are both located on the back face of the main control cabinet, and the cabinet door is provided with a door lock.
Furthermore, main control cabinet internally mounted has the support frame, the support frame is close to main control cabinet's top, the support frame respectively with second connecting plate, roof fixed connection. The setting of support frame has the supporting role to roof, first fan isotructure, has promoted the holistic stability of device.
Furthermore, be equipped with the dust screen between cavity and the main control cabinet is inside, the dust screen is installed on the roof.
Furthermore, the first fan is fixedly connected with the second connecting plate, the first connecting plate is fixedly connected with the top plate, and the edge of the dust screen is fixedly connected with the second connecting plate, the first connecting plate and the top plate respectively.
Compared with the prior art, optic fibre production Japanese wire drawing stove with pull automatic control alarm device have following advantage:
(1) the Japanese type drawing furnace with the automatic traction control alarm device of the utility model is additionally provided with a traction disc alarm system device for reminding operators of normally switching the control mode, in particular to an isolation signal converter, two intermediate relays and an alarm indicator lamp, when the traction device is changed into a manual state due to some abnormal reason in the production process, that is, when the manual switch lamp is on, if no operator presses the automatic button in time, the traction device will break or scrap due to unstable speed, the utility model connects the digital output module, the manual button and the alarm lamp in series by adding an isolation signal converter and two intermediate relays, and is connected with the power supply, therefore, the alarm device starts to alarm when the manual switch lamp is abnormally lightened, the optical fibers are prevented from being scrapped in a large amount, and false alarm when the machine is stopped can be avoided.
(2) Optical fiber production Japanese wire drawing stove with pull automatic control alarm device, heat radiation structure's such as first fan, first telescopic link, exhaust lid, second fan cooperation can show and improve the radiating effect, avoids cabinet internal portion electrical part impaired because of overheated, guarantees automatic control alarm device's smooth operation, can be according to the inside heat degree control radiating efficiency of main control cabinet, the energy saving in addition.
(3) Optical fiber production Japanese wire drawing stove with pull automatic control alarm device, first shock attenuation chamber and second shock attenuation chamber in the base, the setting of two-stage shock attenuation cavity can play vibration/noise reduction's effect on the one hand, is showing and promotes the shock attenuation effect, but on the other hand electrical part damages or produces too much heat because of vibrations, is favorable to automatic control alarm device's smooth operation.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a schematic structural view of an optical fiber production Japanese type drawing furnace with a traction automatic control alarm device according to an embodiment of the present invention;
fig. 2 is a schematic front structural view of a main control cabinet (in a state where an exhaust cover is closed) of an optical fiber production japanese-style drawing furnace with a traction automatic control alarm device according to an embodiment of the present invention;
fig. 3 is a schematic view of the back side structure of the main control cabinet (with the exhaust cover opened) of the japanese fiber production drawing furnace with the automatic traction control alarm device according to the embodiment of the present invention;
FIG. 4 is a schematic sectional view of a main control cabinet of an optical fiber production Japanese type drawing furnace with a traction automatic control alarm device according to an embodiment of the present invention;
FIG. 5 is a schematic view of a partial structure of a main control cabinet of an optical fiber production Japanese type drawing furnace with a traction automatic control alarm device according to an embodiment of the present invention;
FIG. 6 is another schematic view of a partial structure of a main control cabinet of an optical fiber production Japanese type drawing furnace with a traction automatic control alarm device according to an embodiment of the present invention;
FIG. 7 is an enlarged schematic view of a part of a damping cavity of a main control cabinet of an optical fiber production Japanese type drawing furnace with a traction automatic control alarm device according to an embodiment of the present invention;
fig. 8 is a schematic view of a local circuit of an optical fiber production japanese-style drawing furnace with a traction automatic control alarm device according to an embodiment of the present invention.
Description of reference numerals:
1-a main body tower body support plate; 2-a traction disc device; 3-a pinch roller device; 4-a main control cabinet; 41-cabinet door; 42-door lock; 43-top plate, 5-display screen; 51-off button; 52-start button; 53-acceleration button; 54-a speed-down button; 6-automatic button; 7-a base; 71-a base door; 72-a shock absorbing cavity; 73-a first damping chamber; 74-a separator; 75-a second damping chamber; 76-a rubber block; 77-damping balls; 78-a spring; 8-an exhaust cover; 81-electric telescopic rod; 82-a first fan; 83-first connecting plate; 84-dust screen; 85-a second connecting plate; 86-a cavity; 87-a support frame; 88-a first groove; 9-a second fan; 91-an exhaust channel; 10-wire arrangement frame; 11-a setting plate; 12-a power supply;
k1-manual button; a 01-isolated signal converter; KA1 — first intermediate relay coil; KA 11-normally open contact of the first intermediate relay; KA2 — second intermediate relay coil; KA 21-normally open contact of the second intermediate relay; HA 1-alarm indicator light; OUT 3-digital output module.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example (b):
as shown in fig. 1-8, the japanese drawing furnace for producing optical fibers with a traction automatic control alarm device comprises a main body tower support plate 1 and a main control cabinet 4, wherein a traction disc device 2 is installed on the upper portion of the main body tower support plate 1, a pinch roller device 3 is installed on the side face of the traction disc device 2 in an auxiliary mode, the traction disc device 2 is connected with the main control cabinet 4, a manual button K1 and an alarm indicator light HA1 are arranged on the main control cabinet 4, and an isolation signal converter a01, a first intermediate relay, a second intermediate relay, a digital quantity output module OUT3 and a power supply 12 are arranged inside the main control cabinet 4;
the first intermediate relay comprises a first intermediate relay coil KA1 and a first intermediate relay normally-open contact KA11, the second intermediate relay comprises a second intermediate relay coil KA2 and a second intermediate relay normally-open contact KA21, a digital quantity output module OUT3, an isolation signal converter A01, a first intermediate relay coil KA1 series connection and a series circuit connected with the power supply 12, the alarm indicator lamp HA1, a first intermediate relay normally-open contact KA11, a second intermediate relay normally-open contact KA21 series connection and a series circuit connected with the power supply 12, a second intermediate relay coil KA2 and a manual button K1 series connection and a series circuit connected with the power supply 12.
The bottom of main control cabinet 4 is equipped with base 7, the top of main control cabinet 4 is equipped with roof 43 and air exhaust lid 8, be equipped with inside and external cavity 86 of intercommunication main control cabinet 4 in the roof 43, it has first recess 88 to open downwards from roof 43 upper surface in the cavity 86, the internal diameter of first recess 88 is greater than the internal diameter of cavity 86, install electric telescopic handle 81 in the first recess 88, the diameter of air exhaust lid 8 is not less than the internal diameter of first recess 88 and air exhaust lid 8 is located first recess 88 top, electric telescopic handle 81 is connected with air exhaust lid 8. Preferably, the shape of the venting cover 8 matches the shape of the first groove 88.
A first connecting plate 83, a second connecting plate 85 and a first fan 82 are further arranged in the cavity 86, the second connecting plate 85 is fixedly connected with the first connecting plate 83, and the first fan 82 is fixedly connected with the top plate 43 through the second connecting plate 85 and the first connecting plate 83; the main control cabinet 4 is internally provided with a mounting plate 11 and a wire arranging frame 10, the wire arranging frame 10 is fixedly mounted on the mounting plate 11, and the electric telescopic rod 81 and the first fan 82 are respectively connected with the power supply 12.
The lateral wall of main control cabinet 4 is equipped with exhaust passage 91, and second fan 9 is installed to the lateral wall of this main control cabinet 4, and second fan 9 and exhaust passage 91 phase-match just second fan 9 passes through exhaust passage 91 and the inside intercommunication of main control cabinet 4, and second fan 9 is connected with power 12.
Two opposite side walls of the main control cabinet 4 are provided with an exhaust channel 91 and a second fan 9, wherein the number of the exhaust channel 91 and the second fan 9 on any side wall is three, and the three exhaust channels 91 on any side wall are respectively positioned at the upper part, the middle part and the lower part of the main control cabinet 4.
A damping cavity 72 is arranged in the base 7, the damping cavity 72 comprises a first damping cavity 73 and a second damping cavity 75, and a partition plate 74 is arranged between the first damping cavity 73 and the second damping cavity 75; the first damping cavity 73 is internally and uniformly distributed with damping balls 77 and rubber blocks 76 which are closely arranged, and the damping balls 77 and the rubber blocks 76 are distributed at intervals; the second damping chamber 75 is uniformly distributed with closely arranged springs 78 and rubber blocks 76, and the springs 78 and the rubber blocks 76 are distributed at intervals.
The manual button K1 and the alarm indicator light HA1 are positioned at the outer side of the main control cabinet 4, the side surface of the main control cabinet 4 where the manual button K1 and the alarm indicator light HA1 are positioned is defined as the front surface of the main control cabinet 4, the surface opposite to the front surface of the main control cabinet 4 is defined as the back surface of the main control cabinet 4, and the front surface of the main control cabinet 4 is also provided with a display screen 5, a shutdown button 51, a start button 52, an acceleration button 53, a deceleration button 54 and an automatic button 6;
The main control cabinet 4 is provided with a cabinet door 41, the base 7 is provided with a base door 71, the cabinet door 41 and the base door 71 are both positioned on the back of the main control cabinet 4, and the cabinet door 41 is provided with a door lock 42.
The working principle is as follows: in the normal production process of the optical fiber, the drawing production speed reaches more than 400m/min, the automatic switch of the traction device is turned on (at the moment, the automatic button is closed, and the manual button K1 is opened), and the traction disc works according to the parameters set by the program.
1) When production equipment is shut down, namely the wire drawing speed does not reach more than 400m/min, the wire drawing speed signal output by the digital output module OUT3 does not reach the standard, the first intermediate relay coil KA1 is not electrified, the first intermediate relay normally-open contact KA11 is in an off state, if the manual lamp of the traction device is lighted at the moment, namely the manual button K1 is closed, the second intermediate relay coil KA2 is electrified, the second intermediate relay normally-open contact KA21 is closed, but because the alarm indicator lamp HA1 is connected with the first intermediate relay normally-open contact KA11 and the second intermediate relay normally-open contact KA21 in series at the same time, the alarm indicator lamp HA1 cannot be electrified at the moment, and therefore, false alarm during shutdown can not be generated;
2) when the wire drawing speed reaches more than 400m/min in the production process promptly, digital output module OUT3 output wire drawing speed signal is up to standard, first intermediate relay coil KA1 gets electric, first intermediate relay normally open contact KA11 is closed, if the phenomenon that unusual manual lamp is lighted appears, manual button K1 is closed promptly, second intermediate relay coil KA2 gets electric, second intermediate relay normally open contact KA21 is closed, alarm indicator HA1 gets electric and reports to the police this moment, indicate operating personnel in time to press automatic button 6, effectively prevent a large amount of scrappings in the optical fiber production.
The heat dissipation principle is as follows: when the heat in the main control cabinet 4 is low, heat can not be dissipated or only the second fan 9 is opened for dissipating heat, the exhaust cover 8 is closed at the moment, when the heat in the main control cabinet 4 is high, the electric telescopic rod 81 is started, the electric telescopic rod 81 extends to drive the exhaust cover 8 to move upwards, the exhaust cover 8 is opened, the main control cabinet 4 is communicated with the outside, and meanwhile, the first fan 82 is opened to accelerate air flow and improve the heat dissipation effect; after the heat dissipation is completed, the first fan 82 is turned off, the electric telescopic rod 81 is contracted, and the exhaust cover 8 is closed. The dust screen 84 is arranged to prevent external contaminants from entering the main control cabinet 4 after the exhaust cover 8 is opened.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. Optic fibre production Japanese wire drawing stove with draw automatic control alarm device, including main part tower body backup pad (1) and main control cabinet (4), its characterized in that: the device is characterized in that a traction disc device (2) is installed on the upper portion of a main body tower body supporting plate (1), a pinch roller device (3) is installed on the side face of the traction disc device (2) in an auxiliary mode, the traction disc device (2) is connected with a main control cabinet (4), a manual button (K1) and an alarm indicator lamp (HA1) are arranged on the main control cabinet (4), and an isolation signal converter (A01), a first intermediate relay, a second intermediate relay, a digital quantity output module (OUT3) and a power supply (12) are arranged inside the main control cabinet (4);
first intermediate relay includes first intermediate relay coil (KA1) and first intermediate relay normally open contact (KA11), second intermediate relay includes second intermediate relay coil (KA2) and second intermediate relay normally open contact (KA21), digital quantity output module (OUT3), isolation signal converter (A01), first intermediate relay coil (KA1) establish ties and this series circuit is connected with power (12), warning pilot lamp (HA1), first intermediate relay normally open contact (KA11), second intermediate relay normally open contact (KA21) establish ties and this series circuit is connected with power (12), second intermediate relay coil (KA2) and manual button (K1) series connection and this series circuit is connected with power (12).
2. An optical fiber production japanese-style drawing furnace with a traction automatic control alarm device according to claim 1, characterized in that: the air exhaust device is characterized in that a base (7) is arranged at the bottom of the main control cabinet (4), a top plate (43) and an air exhaust cover (8) are arranged at the top of the main control cabinet (4), a cavity (86) for communicating the inside of the main control cabinet (4) with the outside is arranged in the top plate (43), a first groove (88) is formed in the cavity (86) from the upper surface of the top plate (43) downwards, the inner diameter of the first groove (88) is larger than the inner diameter of the cavity (86), an electric telescopic rod (81) is arranged in the first groove (88), the diameter of the air exhaust cover (8) is not smaller than the inner diameter of the first groove (88), the air exhaust cover (8) is positioned above the first groove (88), and the electric telescopic rod (81) is connected with the air exhaust cover (;
a first connecting plate (83), a second connecting plate (85) and a first fan (82) are further arranged in the cavity (86), the second connecting plate (85) is fixedly connected with the first connecting plate (83), and the first fan (82) is fixedly connected with the top plate (43) through the second connecting plate (85) and the first connecting plate (83);
the wire arrangement device is characterized in that a placement plate (11) and a wire arrangement frame (10) are arranged inside the main control cabinet (4), the wire arrangement frame (10) is fixedly installed on the placement plate (11), and the electric telescopic rod (81) and the first fan (82) are connected with the power supply (12) respectively.
3. The optical fiber production japanese-type drawing furnace with the automatic traction control alarm device according to claim 2, characterized in that: main control cabinet (4) lateral wall is equipped with exhaust passage (91), and second fan (9) are installed to the lateral wall of this main control cabinet (4), second fan (9) and exhaust passage (91) phase-match and second fan (9) pass through exhaust passage (91) and main control cabinet (4) inside intercommunication, second fan (9) are connected with power (12).
4. An optical fiber production japanese-style drawing furnace with a traction automatic control alarm device according to claim 3, characterized in that: two opposite side walls of the main control cabinet (4) are provided with an exhaust channel (91) and a second fan (9), the number of the exhaust channel (91) and the number of the second fan (9) on any side wall are three, and the three exhaust channels (91) on any side wall are respectively positioned at the upper part, the middle part and the lower part of the main control cabinet (4).
5. The optical fiber production japanese-type drawing furnace with the automatic traction control alarm device according to claim 2, characterized in that: a damping cavity (72) is arranged in the base (7), the damping cavity (72) comprises a first damping cavity (73) and a second damping cavity (75), and a partition plate (74) is arranged between the first damping cavity (73) and the second damping cavity (75);
damping balls (77) and rubber blocks (76) which are closely arranged are uniformly distributed in the first damping cavity (73), and the damping balls (77) and the rubber blocks (76) are distributed at intervals;
the springs (78) and the rubber blocks (76) which are arranged closely are uniformly distributed in the second damping cavity (75), and the springs (78) and the rubber blocks (76) are distributed at intervals.
6. The optical fiber production japanese-type drawing furnace with a traction automatic control alarm device according to claim 1 or 2, characterized in that: the manual button (K1) and the alarm indicator light (HA1) are positioned on the outer side of the main control cabinet (4), the side face of the main control cabinet (4) where the manual button (K1) and the alarm indicator light (HA1) are positioned is defined as the front face of the main control cabinet, the face opposite to the front face of the main control cabinet (4) is defined as the back face of the main control cabinet, and the front face of the main control cabinet (4) is further provided with a display screen (5), a shutdown button (51), a start button (52), an acceleration button (53), a deceleration button (54) and an automatic button (6);
main control cabinet (4) are equipped with cabinet door (41), base (7) are equipped with base door (71), cabinet door (41) and base door (71) all are located the back of main control cabinet (4), be equipped with lock (42) on cabinet door (41).
7. The optical fiber production japanese-type drawing furnace with the automatic traction control alarm device according to claim 2, characterized in that: main control cabinet (4) internally mounted has support frame (87), support frame (87) are close to the top of main control cabinet (4), support frame (87) respectively with second connecting plate (85), roof (43) fixed connection.
8. The optical fiber production japanese-type drawing furnace with the automatic traction control alarm device according to claim 2, characterized in that: be equipped with dust screen (84) between cavity (86) and main control cabinet (4) inside, dust screen (84) are installed on roof (43).
9. The optical fiber production japanese-style drawing furnace with the automatic traction control alarm device according to claim 8, characterized in that: the first fan (82) is fixedly connected with the second connecting plate (85), the first connecting plate (83) is fixedly connected with the top plate (43), and the edge of the dustproof net (84) is fixedly connected with the second connecting plate (85), the first connecting plate (83) and the top plate (43) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922441673.1U CN211522030U (en) | 2019-12-30 | 2019-12-30 | Optical fiber production Japanese type wire drawing furnace with automatic traction control alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922441673.1U CN211522030U (en) | 2019-12-30 | 2019-12-30 | Optical fiber production Japanese type wire drawing furnace with automatic traction control alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211522030U true CN211522030U (en) | 2020-09-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922441673.1U Withdrawn - After Issue CN211522030U (en) | 2019-12-30 | 2019-12-30 | Optical fiber production Japanese type wire drawing furnace with automatic traction control alarm device |
Country Status (1)
| Country | Link |
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| CN (1) | CN211522030U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111099821A (en) * | 2019-12-30 | 2020-05-05 | 天津富通光纤技术有限公司 | Optical fiber production Japanese wire drawing furnace with automatic alarm function |
-
2019
- 2019-12-30 CN CN201922441673.1U patent/CN211522030U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111099821A (en) * | 2019-12-30 | 2020-05-05 | 天津富通光纤技术有限公司 | Optical fiber production Japanese wire drawing furnace with automatic alarm function |
| CN111099821B (en) * | 2019-12-30 | 2023-09-26 | 天津富通光纤技术有限公司 | Optical fiber production Japanese type wire drawing furnace with automatic alarm function |
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Granted publication date: 20200918 Effective date of abandoning: 20230926 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200918 Effective date of abandoning: 20230926 |
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