CN111099821B - Optical fiber production Japanese type wire drawing furnace with automatic alarm function - Google Patents
Optical fiber production Japanese type wire drawing furnace with automatic alarm function Download PDFInfo
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- CN111099821B CN111099821B CN201911398694.8A CN201911398694A CN111099821B CN 111099821 B CN111099821 B CN 111099821B CN 201911398694 A CN201911398694 A CN 201911398694A CN 111099821 B CN111099821 B CN 111099821B
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- control cabinet
- main control
- intermediate relay
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- fiber production
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/03—Drawing means, e.g. drawing drums ; Traction or tensioning devices
- C03B37/032—Drawing means, e.g. drawing drums ; Traction or tensioning devices for glass optical fibres
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/07—Controlling or regulating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
The invention provides an optical fiber production Japanese wire drawing furnace with an automatic alarm function, which comprises a main body tower body supporting plate and a main control cabinet, wherein a traction disc device is arranged at the upper part of the main body tower body supporting plate, a pinch roller device is arranged on the side surface of the traction disc device in an auxiliary manner, and the traction disc device is connected with the main control cabinet. The invention relates to an optical fiber production Japanese drawing furnace with an automatic alarm function, which can realize the effect of prompting related operators to accurately operate through an alarm system in the production process, further prevent a large number of scrapping phenomena in optical fiber production, and remarkably improve the heat dissipation effect of an automatic control device.
Description
Technical Field
The invention belongs to the field of optical fiber production equipment, and particularly relates to an optical fiber production Japanese drawing furnace with an automatic alarm function.
Background
Under the normal production condition, if the traction device of the Japanese fiber drawing furnace for fiber production is changed into a manual control state due to the deviation of an XY axis, a large amount of scrapping of the fiber can be generated 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, heat can be generated when the electric devices in the control cabinet work, the heat dissipation effect of the existing control cabinet is poor, and the electric devices in the cabinet are easy to be abnormal or damaged, so that automatic control is not facilitated.
Disclosure of Invention
In view of the above, the invention aims to provide an optical fiber production Japanese drawing furnace with an automatic alarm function, which can effectively reduce the operation errors of operators, has the function of prompting the related operators to operate accurately through an alarm system in the production process, can prevent a large number of scrapping phenomena in the optical fiber production, and remarkably improves the heat dissipation effect of an automatic control device.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the solar fiber production wire drawing furnace with the automatic alarm function comprises a main body tower body supporting plate and a main control cabinet, wherein a traction disc device is arranged at the upper part of the main body tower body supporting plate, a pinch roller device is arranged 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;
the first intermediate relay comprises a first intermediate relay coil and a first intermediate relay normally open contact, the second intermediate relay comprises a second intermediate relay coil and a second intermediate relay normally open contact, the digital quantity output module OUT, the isolation signal converter and the first intermediate relay coil are connected in series and the series circuit is connected with a power supply, the alarm indicator H, the first intermediate relay normally open contact and the second intermediate relay normally open contact are connected in series and the series circuit is connected with the power supply, and the second intermediate relay coil is connected in series with the manual button and the series circuit is connected with the power supply.
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 for communicating the inside of the main control cabinet with the outside 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;
the cavity is internally provided with a first connecting plate, a second connecting plate and a first fan, 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 placement plate and a wire arranging frame, the wire arranging frame is fixedly arranged on the placement plate, and the electric telescopic rod and the first fan are respectively connected with a power supply.
Further, the side wall of the main control cabinet is provided with an exhaust channel, the outer side wall of the main control cabinet is provided with a second fan, the second fan is matched with the exhaust channel and is communicated with the inside of the main control cabinet through the exhaust channel, and the second fan is connected with a power supply.
Further, two opposite side walls of the main control cabinet are respectively provided with an exhaust channel and a second fan, wherein the number of the exhaust channels and the second fans on any side wall is three, 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.
Further, a damping cavity is arranged in the base, the damping cavity 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;
the damping balls and the rubber blocks are distributed in a tight manner in the first damping cavity, and the damping balls and the rubber blocks are distributed at intervals;
the second damping cavity is internally and uniformly provided with closely arranged springs and rubber blocks, and the springs and the rubber blocks are alternately distributed.
Further, the manual button and the alarm indicator lamp H are positioned at 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 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 positioned on the back of the main control cabinet, and the cabinet door is provided with a door lock.
Further, main control cabinet internally mounted has the support frame, the support frame is close to the top of main control cabinet, the support frame respectively with second connecting plate, roof fixed connection. The setting of support frame has the supporting role to structures such as roof, first fan, has promoted the holistic stability of device.
Further, a dust screen is arranged between the cavity and the inside of the main control cabinet, and the dust screen is arranged on the top plate.
Further, 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, the Japanese fiber drawing furnace with the automatic alarm function for producing the optical fiber has the following advantages:
(1) The invention relates to an optical fiber production Japanese wire drawing furnace with an automatic alarm function, which is provided with a traction disc alarm system device, and reminds an operator of normally switching control modes, in particular to an isolation signal converter, two intermediate relays and an alarm indicator lamp.
(2) According to the fiber production Japanese drawing furnace with the automatic alarm function, the first fan, the first telescopic rod, the exhaust cover, the second fan and other heat dissipation structures are matched, so that the heat dissipation effect can be remarkably improved, the electric devices in the cabinet body are prevented from being damaged due to overheating, the smooth operation of the automatic control alarm device is ensured, in addition, the heat dissipation efficiency can be controlled according to the heat degree in the main control cabinet, and the energy is saved.
(3) According to the fiber production Japanese drawing furnace with the automatic alarm function, the first damping cavity and the second damping cavity in the base and the two-stage damping cavities are arranged, so that on one hand, the effects of damping and noise reduction can be achieved, the damping effect is remarkably improved, on the other hand, the electric device can be damaged or generate excessive heat due to vibration, and the smooth operation of the automatic control alarm device is facilitated.
Drawings
The accompanying drawings, which 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. In the drawings:
FIG. 1 is a schematic diagram of a Japanese fiber drawing furnace with automatic alarm function for optical fiber production according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a front structure of a main control cabinet (in a closed state of an exhaust cover) of a solar fiber production furnace with an automatic alarm function according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a back structure of a main control cabinet (with an exhaust cover opened) of a solar fiber production furnace with an automatic alarm function according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a main control cabinet of a Japanese fiber drawing furnace with an automatic alarm function according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a local structure of a main control cabinet of a Japanese fiber drawing furnace with an automatic alarm function according to an embodiment of the invention;
FIG. 6 is a schematic diagram of another partial structure of a main control cabinet of a Japanese fiber drawing furnace with an automatic alarm function 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 a Japanese fiber drawing furnace with an automatic alarm function according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a partial circuit of a japanese fiber drawing furnace with automatic alarm function according to an embodiment of the present invention.
Reference numerals illustrate:
1-a main body tower body supporting plate; 2-a traction disk device; 3-a pinch roller device; 4-a main control cabinet; 41-a cabinet door; 42-door lock; 43-top plate, 5-display screen; 51-off button; 52-an actuation button; 53-an acceleration button; 54-a speed reduction button; 6-an automatic button; 7-a base; 71-a base door; 72-a damping cavity; 73-a first shock absorption cavity; 74-a separator; 75-a second shock absorption cavity; 76-rubber blocks; 77-a shock ball; 78-a spring; 8-an exhaust cover; 81-an electric telescopic rod; 82-a first fan; 83-a first connection plate; 84-dustproof net; 85-a second connection plate; 86-cavity; 87-supporting frames; 88-a first groove; 9-a second fan; 91-an exhaust passage; 10-wire arranging frames; 11-a placement plate; 12-power supply;
k1-manual button; a01-isolated signal converter; KA 1-a first intermediate relay coil; KA 11-first intermediate relay normally open contact; KA 2-second intermediate relay coil; KA 21-second intermediate relay normally open contact; HA 1-alarm indicator lamp; OUT 3-digital quantity output module.
Detailed Description
The invention will be described in detail below with reference to the drawings in connection with embodiments.
Examples:
as shown in fig. 1-8, an optical fiber production japanese-style wire drawing furnace with an automatic alarm function comprises a main body tower body supporting plate 1 and a main control cabinet 4, wherein a traction disc device 2 is arranged at the upper part of the main body tower body supporting plate 1, a pinch roller device 3 is arranged on the side surface of the traction disc device 2 in an auxiliary manner, the traction disc device 2 is connected with the 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 in 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, the digital quantity output module OUT3, the isolation signal converter A01, the first intermediate relay coil KA1 and the series circuit are connected in series and the series circuit is connected with the power supply 12, the alarm indicator HA1, the first intermediate relay normally open contact KA11 and the second intermediate relay normally open contact KA21 are connected in series and the series circuit is connected with the power supply 12, the second intermediate relay coil KA2 and the manual button K1 are connected in series and the series circuit is 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 exhaust lid 8, be equipped with in the roof 43 communicate the inside cavity 86 with the external world of main control cabinet 4, open from roof 43 upper surface downwards in the cavity 86 has first recess 88, 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, exhaust lid 8's diameter is not less than the internal diameter of first recess 88 and exhaust lid 8 is located first recess 88 top, electric telescopic handle 81 is connected with exhaust lid 8. Preferably, the shape of the vent cover 8 matches the shape of the first recess 88.
The cavity 86 is also internally provided with a first connecting plate 83, a second connecting plate 85 and a first fan 82, 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 placement plate 11 and a wire arranging frame 10, the wire arranging frame 10 is fixedly arranged on the placement 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 the main control cabinet 4 is provided with an exhaust channel 91, the outer lateral wall of the main control cabinet 4 is provided with a second fan 9, the second fan 9 is matched with the exhaust channel 91, the second fan 9 is communicated with the inside of the main control cabinet 4 through the exhaust channel 91, and the second fan 9 is connected with a power supply 12.
Two opposite side walls of the main control cabinet 4 are respectively provided with an exhaust channel 91 and a second fan 9, wherein the number of the exhaust channels 91 and the second fans 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.
The inside of the base 7 is provided with a damping cavity 72, 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 shock absorption cavity 73 is internally and uniformly provided with shock absorption balls 77 and rubber blocks 76 which are closely arranged, and the shock absorption balls 77 and the rubber blocks 76 are alternately distributed; the second shock absorption cavity 75 is internally and uniformly provided with closely arranged springs 78 and rubber blocks 76, and the springs 78 and the rubber blocks 76 are alternately distributed.
The manual button K1 and the alarm indicator lamp HA1 are positioned on 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 lamp HA1 are positioned is defined as the front surface, the surface opposite to the front surface of the main control cabinet 4 is defined as the back surface, 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 internally mounted has support frame 87, and support frame 87 is close to the top of main control cabinet 4, and support frame 87 is respectively with second connecting plate 85, roof 43 fixed connection. Preferably, a dust screen 84 is provided between the cavity 86 and the interior of the main control cabinet 4, the dust screen 84 being mounted on the top plate 43. 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 edges of the dust screen 84 are respectively fixedly connected with the second connecting plate 85, the first connecting plate 83 and the top plate 43.
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 surface of the main control cabinet 4, and the cabinet door 41 is provided with a door lock 42.
Working principle: 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, the manual button K1 is opened), and the traction disc works according to parameters set by a program.
1) When production equipment is stopped, namely the wire drawing speed does not reach more than 400m/min, a digital output module OUT3 outputs a wire drawing speed signal which does not reach the standard, a first intermediate relay coil KA1 is not electrified, a first intermediate relay normally open contact KA11 is in an open state, at the moment, if a manual lamp of a traction device is turned on, namely a manual button K1 is closed, a second intermediate relay coil KA2 is electrified, a second intermediate relay normally open contact KA21 is closed, but an alarm indicator lamp HA1 is simultaneously connected with the first intermediate relay normally open contact KA11 and the second intermediate relay normally open contact KA21 in series, and at the moment, the alarm indicator lamp HA1 cannot be electrified, so that false alarm during stopping cannot be generated;
2) When wire drawing speed reaches more than 400m/min in the production process, digital output module OUT3 outputs wire drawing speed signal and reaches the standard, first intermediate relay coil KA1 gets the electricity, 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 the electricity, second intermediate relay normally open contact KA21 is closed, alarm indicator lamp HA1 gets the electricity and reports to the police this moment, prompt operating personnel in time presses automatic button 6, effectively prevent a large amount of scrapps in the optic fibre production.
Principle of heat dissipation: when the heat in the main control cabinet 4 is low, the second fan 9 can be opened to dissipate the heat, at the moment, the exhaust cover 8 is closed, 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 the air flow, so that the heat dissipation effect is improved; 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 provided to prevent external contaminants from entering the main control cabinet 4 after the exhaust cover 8 is opened.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (9)
1. The utility model provides an optical fiber production japanese formula wire drawing stove with automatic alarm function, includes main part tower body backup pad (1) and master control cabinet (4), its characterized in that: the traction device is characterized in that a traction disc device (2) is arranged on the upper portion of a main body tower body supporting plate (1), a pinch roller device (3) is arranged 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 (HA 1) 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 (OUT 3) and a power supply (12) are arranged in the main control cabinet (4);
the first intermediate relay comprises a first intermediate relay coil (KA 1) and a first intermediate relay normally open contact (KA 11), the second intermediate relay comprises a second intermediate relay coil (KA 2) and a second intermediate relay normally open contact (KA 21), the digital quantity output module (OUT 3), the isolation signal converter (A01) and the first intermediate relay coil (KA 1) are connected in series and the series circuit is connected with the power supply (12), the alarm indicator lamp (HA 1), the first intermediate relay normally open contact (KA 11) and the second intermediate relay normally open contact (KA 21) are connected in series and the series circuit is connected with the power supply (12), and the second intermediate relay coil (KA 2) is connected with the manual button (K1) in series and the series circuit is connected with the power supply (12).
2. The optical fiber production japanese drawing furnace with automatic alarm function according to claim 1, wherein: the bottom of the main control cabinet (4) is provided with a base (7), the top of the main control cabinet (4) is provided with a top plate (43) and an exhaust cover (8), a cavity (86) which is communicated with the inside of the main control cabinet (4) and the outside is arranged in the top plate (43), a first groove (88) is formed in the cavity (86) downwards from the upper surface of the top plate (43), 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 exhaust cover (8) is not smaller than the inner diameter of the first groove (88), the exhaust cover (8) is positioned above the first groove (88), and the electric telescopic rod (81) is connected with the exhaust cover (8);
the cavity (86) is internally provided with a first connecting plate (83), a second connecting plate (85) and a first fan (82), 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 placement plate (11) and a wire arranging frame (10), the wire arranging frame (10) is fixedly arranged on the placement plate (11), and the electric telescopic rod (81) and the first fan (82) are respectively connected with a power supply (12).
3. The optical fiber production japanese drawing furnace with automatic alarm function according to claim 2, wherein: the side wall of the main control cabinet (4) is provided with an exhaust channel (91), the outer side wall of the main control cabinet (4) is provided with a second fan (9), the second fan (9) is matched with the exhaust channel (91) and the second fan (9) is communicated with the inside of the main control cabinet (4) through the exhaust channel (91), and the second fan (9) is connected with a power supply (12).
4. A fiber production japanese drawing furnace having an automatic alarming function according to claim 3, wherein: two opposite side walls of the main control cabinet (4) are respectively provided with an exhaust channel (91) and a second fan (9), the number of the exhaust channels (91) and the number of the second fans (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 drawing furnace with automatic alarm function according to claim 2, wherein: the base (7) is internally provided with a damping cavity (72), 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 second damping cavity (75) is internally and uniformly provided with closely arranged springs (78) and rubber blocks (76), and the springs (78) and the rubber blocks (76) are distributed at intervals.
6. The optical fiber production japanese drawing furnace having an automatic alarming function according to claim 1 or 2, wherein: the manual button (K1) and the alarm indicator lamp (HA 1) are positioned on 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 lamp (HA 1) 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 (4) is the back surface of the main control cabinet, 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).
7. The optical fiber production japanese drawing furnace with automatic alarm function according to claim 2, wherein: the 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 drawing furnace with automatic alarm function according to claim 2, wherein: a dust screen (84) is arranged between the cavity (86) and the inside of the main control cabinet (4), and the dust screen (84) is arranged on the top plate (43).
9. The optical fiber production japanese drawing furnace having an automatic alarming function according to claim 8, wherein: 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 dust screen (84) is fixedly connected with the second connecting plate (85), the first connecting plate (83) and the top plate (43) respectively.
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|---|---|---|---|
| CN201911398694.8A CN111099821B (en) | 2019-12-30 | 2019-12-30 | Optical fiber production Japanese type wire drawing furnace with automatic alarm function |
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| CN201911398694.8A CN111099821B (en) | 2019-12-30 | 2019-12-30 | Optical fiber production Japanese type wire drawing furnace with automatic alarm function |
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| CN111099821B true CN111099821B (en) | 2023-09-26 |
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| CN211522030U (en) * | 2019-12-30 | 2020-09-18 | 天津富通光纤技术有限公司 | Optical fiber production Japanese type wire drawing furnace with automatic traction control alarm device |
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