Intaglio printing equipment with fire extinguishing device

Abstract

The intaglio printing equipment comprises a printing main body, a wire slot mounting column, a printing roller, a carbon dioxide fire extinguisher, a temperature sensor, a smoke sensor, an air outlet pipe, a branch pipe I, a branch pipe II and a quick assembly component, the carbon dioxide fire extinguisher started by the temperature sensor and the smoke sensor is arranged on the printing roller, so that when the temperature sensor senses that the temperature is too high or the smoke sensor senses smoke, the carbon dioxide fire extinguisher is started, and the first spray pipe and the second spray pipe blow carbon dioxide to the two ends of the printing roller; carbon dioxide is obliquely and downwards sprayed to the middle of the printing roller through the first spraying pipe inclining downwards, and therefore the fire extinguishing range of the carbon dioxide is widened; therefore, the problems that workers are easily hurt and the fire behavior is too large due to the fact that manual fire extinguishing is not carried out in the past are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of intaglio printing presses, in particular to an intaglio printing device provided with a fire extinguishing device. Background Art

[0002] An intaglio printing press is a machine that uses an intaglio plate for printing. The graphic part of the printing plate is recessed, and the blank part is on the same plane as the outer circle of the printing plate cylinder. It is the most common printing press in the current market and is widely used. During the operation of the intaglio printing press, due to lack of oil in the equipment bearings, displacement of components, or failure to clean the wound materials in time, it may ignite materials or printing ink due to heat generated by friction. Moreover, printing ink is a flammable item and is easily affected by static sparks, leading to combustion. When a fire occurs, the existing fire-fighting measures generally involve workers holding fire extinguishers to extinguish the fire. Manual fire extinguishing is not only likely to harm workers but also requires workers to discover and then extinguish the fire, with a slow response and it is easy for the fire to become too large to be extinguished. Content of the Utility Model

[0003] The purpose of the utility model is to provide an intaglio printing device provided with a fire extinguishing device to solve the problems mentioned in the above background art.

[0004] To achieve the above purpose, the utility model provides an intaglio printing device provided with a fire extinguishing device, which includes a plurality of color groups connected in sequence. The color group includes a printing main body, a wire groove installation column fixedly connected inside the printing main body, and a printing roller arranged inside the printing main body. The printing roller is located below the wire groove installation column. The color group further includes a carbon dioxide fire extinguisher installed on the side wall of the printing main body, a temperature sensor and a smoke sensor fixedly connected to the bottom of the wire groove installation column and used as a start signal for starting the carbon dioxide fire extinguisher, and a first branch pipe and a second branch pipe that are simultaneously communicated with the air outlet pipe of the carbon dioxide fire extinguisher. The first branch pipe and the second branch pipe are both installed on the wire groove installation column under the action of a quick installation component.

[0005] Further, an air extraction pump is further arranged on the side wall of the printing main body. The air extraction pipe of the air extraction pump is communicated with the second branch pipe. The air extraction pipe is communicated with the first branch pipe through a connecting pipe. A first valve is arranged on the air extraction pipe, a second valve is arranged on the air outlet pipe, and a third valve is arranged on the connecting pipe. The first valve is located between the air extraction pump and the connecting pipe. The first valve, the second valve, the third valve, the temperature sensor, and the smoke sensor are all connected to a controller.

[0006] Further, the quick installation component includes a base detachably connected to the wire groove installation column and a stainless steel belt connected to the base. The stainless steel belt is provided with a first through hole, and the base is provided with a first threaded hole.

[0007] When the bolt passes through the through hole and is screwed into the threaded hole, after pressing the movable end of the stainless steel strip against the base, the first branch pipe or the second branch pipe will be fixedly connected to the base under the action of the stainless steel strip.

[0008] Furthermore, a rubber pad is fixedly connected to the inner side wall of the stainless steel strip.

[0009] Furthermore, a plurality of countersunk holes are provided on the base, and threaded holes II aligned with the countersunk holes are provided on the wire groove mounting post. The bolt II passes through the countersunk hole and is threadedly connected to the threaded hole II, and the base will be installed on the wire groove mounting post.

[0010] Furthermore, a transmission roller is further provided on the printing main body. The transmission roller is located below the wire groove mounting post, and one first spray pipe and one second spray pipe are respectively aligned with the rotation points at both ends of the transmission roller.

[0011] Furthermore, the orientation of one second spray pipe is inclined downward and points to the middle of the transmission roller, and the inclined downward first spray pipe and the second spray pipe have opposite orientations.

[0012] Furthermore, horn-shaped expanding pipes are installed at the ends of the first spray pipe and the second spray pipe.

[0013] Furthermore, a plurality of flame detectors for serving as start signals for starting the carbon dioxide fire extinguisher are further provided on the top of the printing main body.

[0014] The beneficial effects of the present utility model: The present utility model is provided with a carbon dioxide fire extinguisher started by a temperature sensor and a smoke sensor. Therefore, when the temperature sensor senses that the temperature is too high or the smoke sensor senses smoke, the carbon dioxide fire extinguisher will be started, and the first spray pipe and the second spray pipe will blow carbon dioxide to both ends of the printing roller, thereby extinguishing the fire at both ends of the printing roller and its vicinity. The inclined downward first spray pipe makes the carbon dioxide spray obliquely downward to the middle of the printing roller, thereby increasing the fire extinguishing range of the carbon dioxide; Therefore, the present utility model eliminates the problems that when using manual fire extinguishing in the past, it is easy to harm workers and the fire is not timely, resulting in too large a fire. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art.

[0016] Figure 1 is the overall structural schematic diagram of a color group in the intaglio printing equipment;

[0017] Figure 2 is Figure 1 Another perspective structural schematic diagram of the color group;

[0018] Figure 3 Yes Figure 2 An enlarged schematic view of part A in

[0019] Figure 4 A schematic connection structure diagram of the first branch pipe, the second branch pipe, the extraction pipe and the outlet pipe.

[0020] In the figure: 1. Printing main body; 2. Extraction pipe; 3. Extraction pump; 4. Printing roller; 5. First spray pipe; 6. Carbon dioxide fire extinguisher; 7. First branch pipe; 8. Outlet pipe; 9. Flared pipe; 10. Wiring duct installation column; 11. Second spray pipe; 12. Driving roller; 13. Second branch pipe; 14. Quick installation component; 15. Connecting pipe; 16. Stainless steel belt; 17. Rubber pad; 18. First bolt; 19. Base; 20. Second bolt; 21. First valve; 22. Third valve; 23. Second valve; 24. Flame detector. Specific implementation mode

[0021] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0022] In one embodiment, as Figures 1-4As shown in the figure, an intaglio printing device equipped with a fire extinguishing device includes a number of color groups connected in sequence. Each color group includes a printing main body 1, a wire groove mounting post 10 fixedly connected inside the printing main body 1, and a printing roller 4 disposed inside the printing main body 1. The printing roller 4 is located below the wire groove mounting post 10. The color group further includes a carbon dioxide fire extinguisher 6 installed on the side wall of the printing main body 1, a temperature sensor and a smoke sensor fixedly connected to the bottom of the wire groove mounting post 10 and used as a start signal for starting the carbon dioxide fire extinguisher 6, and a first branch pipe 7 and a second branch pipe 13 that are simultaneously connected to the air outlet pipe 8 of the carbon dioxide fire extinguisher 6. The first branch pipe 7 and the second branch pipe 13 are both installed on the wire groove mounting post 10 under the action of a quick installation component 14; several first nozzles 5 in the first branch pipe 7 are all located at one end of the printing roller 4, and several second nozzles 11 in the second branch pipe 13 are all located at the other end of the printing roller 4. The orientation of one first nozzle 5 is inclined downward and points to the middle of the printing roller 4. Since the printing roller 4 contains volatile printing ink, the fire extinguishing device installed at the printing roller 4 is taken as an example, but it is not limited thereto; in other embodiments, it can also be installed at other important transition rollers or at a certain component where heat is likely to accumulate or the equipment cost is relatively high; there will be no more elaboration here; based on this embodiment, among them, the carbon dioxide fire extinguisher 6 can adopt a common fire extinguisher, as long as it can be opened in time when the temperature sensor or the smoke sensor sends a signal to the carbon dioxide fire extinguisher 6. Since this technology is relatively conventional and only involves a simple control circuit, there will be no more elaboration here; since the rotating part of the printing roller 4 is a key area for heat accumulation, the heat at this place is not easily volatilized. When there is a lack of lubricating oil at the rotating part, the heat accumulation problem is more serious. Therefore, this is a place where a fire is likely to occur. Therefore, in this utility model, the first nozzles 5 and the second nozzles 11 are aligned with the rotating parts at both ends of the printing roller 4; when a fire occurs and the temperature sensor senses that the temperature is too high or the smoke sensor senses smoke, the carbon dioxide fire extinguisher 6 will be started. At this time, carbon dioxide will be blown towards both ends of the printing roller 4 through the first nozzles 5 and the second nozzles 11, so as to extinguish the fire at both ends of the printing roller 4 and its vicinity. Since after the fire breaks out, the fire will spread to the ink cartridge, and since a part of the printing roller 4 is immersed in the ink cartridge, the inclined downward first nozzle 5 will make the carbon dioxide spray obliquely downward towards the middle of the printing roller 4, so that the printing material (paper or film) can be extinguished while the ink cartridge can also be extinguished, thereby increasing the fire extinguishing range of carbon dioxide; in addition, the first nozzles 5 and the second nozzles 11 can also be added to be aligned from top to bottom with both ends and the middle of the ink cartridge and the printing material on the printing roller 4, so as to achieve a better fire extinguishing effect; therefore, this utility model eliminates the situation of untimely manual fire extinguishing and the easy harm to workers; in other embodiments, the orientation of the first nozzles 5 and the second nozzles 11 is not specifically limited, as long as it is aligned with the fire source where a fire is likely to occur.

[0023] In addition, the carbon dioxide is diverted by branch pipe 1 7 and branch pipe 2 13, and nozzle 1 5 and nozzle 2 11 are respectively concentrated at the two ends of the printing roller 4, which is conducive to improving the consistency of the carbon dioxide flow at the two ends of the printing roller 4, and preventing the situation where the flow of the nozzle on the side away from the carbon dioxide fire extinguisher 6 is smaller when one branch pipe is used; branch pipe 1 7 and branch pipe 2 13 on the same side of several color groups can be connected by a transition pipe, thereby improving the linkage of the overall fire-fighting process of the equipment.

[0024] In other embodiments, an air pump 3 is further provided on the side wall of the printing body 1, and an air pump 2 of the air pump 3 is connected to the branch pipe 2 13, and the air pump 2 is connected to the branch pipe 1 7 through a connecting pipe 15, a valve 1 21 is provided on the air pump 2, a valve 2 23 is provided on the air outlet pipe 8, and a valve 3 22 is provided on the connecting pipe 15, and the valve 1 21 is located between the air pump 3 and the connecting pipe 15, and the valve 1 21, the valve 2 23, the valve 3 22, the temperature sensor and the smoke sensor are all connected to the controller, and the carbon dioxide fire extinguisher 6 is also connected to the controller. device connected; before a fire occurs, the controller controls valve one 21 and valve three 22 to open and valve two 23 to close; at this time, the vacuum pump 3 is started intermittently, so as to absorb the hot air with higher temperature (i.e., accumulated heat) near the printing roller 4 to prevent heat accumulation and play a role in preventing fire; when a fire occurs, the temperature sensor or the smoke sensor will send a signal to the controller, and the controller first controls valve one 21 and valve three 22 to close, and valve one 21 to open, and then starts the carbon dioxide fire extinguisher 6 to extinguish the fire.

[0025] The quick-install assembly 14 includes a base 19 detachably connected to the wire trough mounting column 10 and a stainless steel belt 16 connected to the base 19. The stainless steel belt 16 is provided with a through hole 1, and the base 19 is provided with a threaded hole 1. Therefore, when the bolt 18 passes through the through hole 1 and is screwed into the threaded hole, the movable end of the stainless steel belt 16 is pressed against the base 19, and the branch pipe 17 or the branch pipe 2 13 is fixed to the base 19 under the action of the stainless steel belt 16, so as to facilitate the installation of the branch pipe 17 and the branch pipe 2 13. The inner wall of the stainless steel belt 16 is fixed with a rubber pad 17, and the deformation of the rubber pad 17 can ensure that the branch pipe 1 7 and the branch pipe 2 13 are fully clamped while preventing the stainless steel belt 16 from scratching the branch pipe 1 7 and the branch pipe 2 13; the base 19 is provided with a plurality of countersunk holes, and the wire trough mounting column 10 is provided with a threaded hole 2 aligned with the countersunk hole, and the bolt 20 passes through the countersunk hole and is threadedly connected with the threaded hole 2, and the base 19 will be installed on the wire trough mounting column 10, thereby facilitating the installation of the base 19.

[0026] The printing main body 1 is also provided with a driving roller 12, and the driving roller 12 is located below the wire groove mounting column 10. Since the heat at the rotating part of the driving roller 12 is relatively high, there will also be heat accumulation, which may cause a fire. Therefore, in other embodiments, a nozzle one 5 and a nozzle two 11 are respectively aligned with the rotating parts at both ends of the driving roller 12, facilitating heat absorption. While playing a preventive role, in case of a fire, carbon dioxide can be ejected to extinguish the driving roller 12. And the orientation of the nozzle two 11 is inclined downward and points to the middle part of the driving roller 12, which can extinguish the printing materials (paper or film) on the driving roller 12. Similarly, the nozzle one 5 and the nozzle two 11 can also be increased to align with the two ends and the middle part of the printing materials at the position of the driving roller 12 from top to bottom, so as to achieve a better fire extinguishing effect. And the nozzle one 5 and the nozzle two 11 with an inclined downward orientation are opposite to each other, further expanding the fire protection range and improving the fire protection quality. Horn-shaped expansion pipes 9 are installed at the ends of the nozzle one 5 and the nozzle two 11, facilitating the diffusion of carbon dioxide and heat absorption. In addition, several flame detectors 24 for serving as start signals for starting the carbon dioxide fire extinguisher 6 are provided on the top of the printing main body 1. The flame detectors 24 are connected to the controller, and the controller controls the opening of the carbon dioxide fire extinguisher 6. And the detection direction of the flame detectors 24 is aligned with the position of the printing main body 1 that is prone to catching fire, such as the printing roller. The flame detectors 24 can use spectral detection technology to identify the flame, such as an infrared flame detector. When a flame is identified, the controller will start the carbon dioxide fire extinguisher 6 to extinguish the fire.

[0027] Working principle: When the temperature sensor senses that the temperature is too high or the smoke sensor senses smoke, the temperature sensor or the smoke sensor will send a signal to the controller. The controller first controls the closing of the valve one 21 and the valve three 22, and opens the valve one 21, and then starts the carbon dioxide fire extinguisher 6. Carbon dioxide will be blown to both ends of the printing roller 4 and the driving roller 12 through the nozzle one 5 and the nozzle two 11, so as to extinguish the fire at both ends of the printing roller 4 and the driving roller 12 and the vicinity thereof. And the nozzle one 5 and the nozzle two 11 with an inclined downward orientation make the carbon dioxide spray obliquely downward to the middle parts of the printing roller 4 and the driving roller 12, thus increasing the fire extinguishing range of the carbon dioxide. Therefore, this utility model eliminates the problems that when using manual fire extinguishing in the past, it is easy to harm workers and the fire is not extinguished in time, resulting in an excessive fire.

[0028] The above-disclosed are only one or more preferred embodiments of the present application, and the scope of rights of the present application cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A gravure printing device provided with a fire extinguishing device, comprising a plurality of color groups connected in sequence, wherein the color group comprises a printing body (1) and a wire slot mounting column (10) fixedly connected to the inside of the printing body (1), characterized in that: The color group further comprises a carbon dioxide fire extinguisher (6) mounted on the side wall of the printing body (1), a temperature sensor and a smoke sensor fixed to the bottom of the wire trough mounting column (10) and used as a start signal for starting the carbon dioxide fire extinguisher (6), and a branch pipe 1 (7) and a branch pipe 2 (13) simultaneously connected to the air outlet pipe (8) of the carbon dioxide fire extinguisher (6), and the branch pipe 1 (7) and the branch pipe 2 (13) are both mounted on the wire trough mounting column (10) under the action of a quick-install component (14); An air pump (3) is also provided on the side wall of the printing body (1); an air pump (2) of the air pump (3) is connected to the branch pipe 2 (13); the air pump (2) is connected to the branch pipe 1 (7) via a connecting pipe (15); a valve 1 (21) is provided on the air pump (2); a valve 2 (23) is provided on the air outlet pipe (8); a valve 3 (22) is provided on the connecting pipe (15); the valve 1 (21) is located between the air pump (3) and the connecting pipe (15); the valve 1 (21), the valve 2 (23), the valve 3 (22), the temperature sensor and the smoke sensor are all connected to a controller.

2. The gravure printing equipment provided with a fire extinguishing device according to claim 1, characterized in that: The quick-install assembly (14) comprises a base (19) detachably connected to the wire trough mounting column (10) and a stainless steel belt (16) connected to the base (19); the stainless steel belt (16) is provided with a through hole 1, and the base (19) is provided with a threaded hole 1; when a bolt 1 (18) passes through the through hole 1 and is screwed into the threaded hole, and the movable end of the stainless steel belt (16) is pressed tightly against the base (19), the branch pipe 1 (7) or the branch pipe 2 (13) is fixed to the base (19) under the action of the stainless steel belt (16).

3. The gravure printing equipment provided with a fire extinguishing device according to claim 2, characterized in that: A rubber pad (17) is fixedly connected to the inner side wall of the stainless steel belt (16).

4. The gravure printing equipment provided with a fire extinguishing device according to claim 2, characterized in that: The base (19) is provided with a plurality of countersunk holes, the wire trough mounting column (10) is provided with a second threaded hole aligned with the countersunk holes, a second bolt (20) passes through the countersunk holes and is threadedly connected to the second threaded hole, and the base (19) is mounted on the wire trough mounting column (10).

5. The gravure printing equipment provided with a fire extinguishing device according to claim 1, characterized in that: A printing roller (4) is provided inside the printing body (1), and the printing roller (4) is located below the wire groove mounting column (10). The plurality of nozzles (5) in the branch pipe (7) are all located at one end of the printing roller (4), and the plurality of nozzles (11) in the branch pipe (13) are all located at the other end of the printing roller (4). The direction of one nozzle (5) is inclined downward and points to the middle of the printing roller (4), and the plurality of nozzles (5) and the plurality of nozzles (11) are all aligned with the rotation points at both ends of the printing roller (4).

6. The gravure printing equipment provided with a fire extinguishing device according to claim 5, characterized in that: The printing body (1) is also provided with a transmission roller (12), the transmission roller (12) being located below the wire slot mounting column (10), and a nozzle one (5) and a nozzle two (11) being respectively aligned with the rotation points at both ends of the transmission roller (12).

7. The gravure printing equipment provided with a fire extinguishing device according to claim 6, characterized in that: The ends of the nozzle 1 (5) and the nozzle 2 (11) are both equipped with trumpet-shaped expansion pipes (9).

8. The gravure printing equipment provided with a fire extinguishing device according to any one of claims 1 to 7, characterized in that: The top of the printing body (1) is also provided with a plurality of flame detectors (24) for providing a start signal for starting the carbon dioxide fire extinguisher (6).

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