Dust collection air pipe assembly for corrugated board production line

Abstract

The utility model relates to the field of corrugated board production lines, in particular to a dust collection air pipe assembly for a corrugated board production line. The utility model provides a dust collection air pipe assembly for a corrugated paper board production line, which comprises an air pipe body, a starting port of the air pipe body is used for being connected to a position to be subjected to dust collection of the corrugated paper board production line, a tail port of the air pipe body is communicated with a negative pressure air pump, and a dust separation filter screen is detachably arranged between the starting port and the tail port of the air pipe body. An impact piece and a driving device in driving connection with the impact piece are installed on the air pipe body, and the driving device drives the impact piece to impact the dust isolation filter screen in a reciprocating mode so that the dust isolation filter screen can vibrate and shake off impurities. According to the dust collection air pipe assembly, most impurities on the surface of the dust isolation filter screen can be cleaned on the premise that the dust isolation filter screen is not disassembled, and filter holes of the dust isolation filter screen are not prone to being blocked.

Description

Technical Field

[0001] The utility model relates to the field of corrugated paperboard production lines, in particular to a dust suction duct component used for the corrugated paperboard production line. Background Art

[0002] Common express cartons in daily life are generally made of folded corrugated cardboard. Corrugated cardboard is usually a three-layer (or five-layer or seven-layer) structure, including a wavy corrugated core layer and a plate-like inner layer and a plate-like surface layer bonded to the inner and outer surfaces of the corrugated core layer. The paper raw material is cut, pressed, glued and bonded by various devices in the corrugated cardboard production line to obtain a flat semi-finished corrugated cardboard. The semi-finished corrugated cardboard is then printed on the surface by a printing device under the conveyor belt, and the edge of the cardboard is trimmed by a trimming device, and then the surface is indented by an indentation device to obtain a finished corrugated cardboard. The user can fold along the surface indentation of the finished corrugated cardboard to obtain a carton of the corresponding size. Due to its material, after the above-mentioned cutting process, impurities such as paper scraps and dust are easily accumulated on the surface of the corrugated cardboard. These impurities accumulated on the surface will affect the gluing and printing effects during the gluing and printing process. For this reason, existing corrugated cardboard production lines are usually equipped with a jet dust removal device, which includes a plurality of vertical jet nozzles arranged in an array. These jet nozzles are connected to the air supply pump for air supply, and are respectively directed downward to the conveyor belt to perform jet dust removal on the surface of the corrugated cardboard passing by. In order to prevent impurities such as paper scraps and dust from being blown up by the air nozzle and then scattered around, a dust suction duct is also installed next to the jet dust removal device. The initial end of the dust suction duct is directed to the air nozzle, and the terminal end is connected to a negative pressure suction pump. Under the action of the negative pressure suction pump, the dust suction duct sucks the impurities such as paper scraps and dust blown up by the air nozzle. A dust filter is provided between the initial end and the terminal end of the dust suction duct to prevent large impurities sucked in by the dust suction duct from directly going to the negative pressure suction pump at the terminal end and damaging the negative pressure suction pump. Since the corrugated cardboard production line can continuously produce multiple corrugated cardboards at a time, a large amount of impurities such as paper scraps and dust will be generated accordingly. The paper scraps among the impurities are easy to accumulate in the filter holes of the dust filter and cause blockage. Therefore, the maintenance personnel need to remove the dust filter from the dust suction duct for cleaning every time it is used for a short period of time. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a dust suction duct assembly for a corrugated cardboard production line, which can clean most of the impurities on the surface of the dust filter without disassembling the dust filter, so that the filter holes of the dust filter are not easily blocked.

[0004] In order to solve the above problems, the utility model provides a dust suction duct assembly for a corrugated cardboard production line, comprising a duct body, an initial port of the duct body is used to be connected to a place to be dusted in the corrugated cardboard production line, a terminal port is connected to a negative pressure suction pump, a dust filter is detachably installed between the initial port and the terminal port of the duct body, an impact piece and a driving device connected to the impact piece are installed on the duct body, and the driving device drives the impact piece to reciprocately impact the dust filter to vibrate the dust filter and shake off impurities.

[0005] Furthermore: it includes a slide rail fixedly installed on the inner side of the top wall of the air duct body and a slider slidably installed on the slide rail, and the impact member is installed on the slider; the driving device specifically drives the connected slider, and the driving device drives the slider to slide back and forth along the slide rail, thereby driving the impact member installed on the slider to move back and forth to impact the dust filter.

[0006] Further: the driving device is specifically a driving motor, which is installed on the outside of the top wall of the air duct body, and its rotating shaft passes through the top wall of the air duct body and extends into the interior of the air duct body; the driving motor is driven and connected to the slider through a first swing rod and a second swing rod. Specifically, the starting end of the first swing rod is fixedly connected to the rotating shaft of the driving motor and the end is movably connected to the starting end of the second swing rod, and the end of the second swing rod is movably connected to the slider. The reciprocating rotation of the rotating shaft of the driving motor drives the first swing rod to swing back and forth around the rotating shaft, thereby driving the second swing rod to swing back and forth to drive the slider to slide back and forth along the slide rail.

[0007] Further: it includes a mounting plate, the dust filter is detachably mounted on the mounting plate; the bottom wall of the air duct body is provided with an opening leading to the interior of the air duct body, the mounting plate is detachably mounted on the outside of the bottom wall of the air duct body and covers the opening, and the dust filter extends from the opening and is accommodated in the interior of the air duct body.

[0008] Furthermore, the mounting plate is provided with a dust collecting bin for collecting impurities shaken off by the dust filter; the dust collecting bin is located beside the dust filter with the bin opening facing upward; when the dust filter is accommodated inside the air duct body, the dust collecting bin is located between the dust filter and the starting end of the air duct body.

[0009] Furthermore, it includes a bin cover covering the bin opening of the dust collecting bin, and a rotating connecting rod is fixedly installed on the bottom of the bin cover, which is rotatably connected to the bin wall of the dust collecting bin through the rotating connecting rod. The bin cover and the rotating connecting rod rotate forward around the horizontal axis of the rotating connecting rod and flip forward to expose the bin opening of the dust collecting bin.

[0010] Furthermore, one end of the rotating connecting rod passes through the wall of the dust collecting bin and extends out of the dust collecting bin, and a pulling piece is fixedly installed on the end of the rotating connecting rod for people to pull.

[0011] Beneficial effect: After the dust collection duct assembly has been dusting for a period of time, impurities gradually accumulate on the dust filter in the duct body. Without removing the dust filter, maintenance personnel can start the driving device to drive the impact member to reciprocately impact the dust filter, thereby causing the dust filter to vibrate and shake off most of the impurities accumulated thereon, so that the filter holes of the dust filter are not easily clogged. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the dust collection duct assembly installed on the conveyor belt of the corrugated cardboard production line.

[0013] Figure 2 It is a schematic diagram of the structure of the dust collection duct assembly.

[0014] Figure 3 is along Figure 2 Simple cross-sectional view along the AA direction.

[0015] Figure 4 yes Figure 3 Magnified view of part B.

[0016] Figure 5 The invention is a simplified structural diagram after the mounting plate and the dust filter installed thereon are detached from the air duct body.

[0017] Figure 6 It is a schematic diagram of the structure from an upward perspective after the mounting plate and the dust filter installed thereon are detached from the air duct body.

[0018] Figure 7 It is a schematic diagram of a partial explosion of the mounting plate (the cover is exposed from the dust collecting bin) and the dust filter.

[0019] Figure 8 It is a schematic diagram showing the structure of the dust filter installed on the mounting plate (the bin cover covers the dust bin).

[0020] Fig. 9 It is a schematic diagram of the structure of the dust collection duct assembly after the duct body is hidden and the impact part hits the dust filter.

[0021] Fig.10 It is a schematic diagram of the structure of the dust collection duct assembly after the duct body is hidden and the impact piece does not impact the dust filter.

[0022] Explanation of symbols:

[0023] 11- conveyor belt; 12- mounting frame; 13- air nozzle; 2- dust suction duct assembly; 21- duct body; 211- starting port; 212- ending port; 213- opening; 22- mounting plate; 221- dust collecting bin; 222- bin cover; 223- rotating connecting rod; 23- dust filter; 231- filter hole; 24- slide rail; 25- slider; 251- boss; 26- impact member; 261- silicone sleeve; 3- driving motor; 31- rotating shaft; 41- first swing arm; 411- starting end of first swing arm; 412- ending end of first swing arm; 42- second swing arm; 421- starting end of second swing arm; 422- ending end of second swing arm; 5- pulling member. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with specific implementation methods.

[0025] The paper raw material is cut, pressed, glued and bonded by various devices in the corrugated cardboard production line to obtain a flat semi-finished corrugated cardboard. The semi-finished corrugated cardboard is then printed on the surface by a printing device under the conveyor belt, and the edge of the cardboard is trimmed by a trimming device, and then the surface is indented by an indentation device to obtain a finished corrugated cardboard. The user can fold along the surface indentation of the finished corrugated cardboard to obtain a carton of corresponding size. Each device in the corrugated cardboard production line belongs to the prior art, and its internal structure and working principle are not described here.

[0026] A conveyor belt 11 connected to a printing device in a corrugated board production line Figure 1 The conveyor belt 11 is provided with a mounting frame 12, and three vertical air nozzles 13 are provided on the mounting frame 12. These air nozzles 13 are connected to an air supply pump (not shown in the figure) for air supply, and are respectively directed downward to the conveyor belt 11 to perform air jet dust removal on the surface of the corrugated cardboard (not shown in the figure) passing by. Two groups of dust suction duct assemblies 2 are respectively installed on the left and right sides of the mounting frame 12. These dust suction duct assemblies 2 have the same structure, and the two groups of dust suction duct assemblies 2 on the left are symmetrical with the two groups of dust suction duct assemblies 2 on the left and are aligned one by one.

[0027] Take the dust collection duct assembly 2 located in the left front of the conveyor belt 11 as an example. Figure 2 The dust suction duct assembly 2 includes a duct body 21, the end opening 212 of the duct body 21 faces left and is connected to a negative pressure suction pump (not shown in the figure); a mounting frame 12 (see Figure 1) has a vent opening that runs through the left and right sides (not visible due to the angle of the figure), and the right part of the air duct body 21 is detachably mounted to the left side of the mounting frame 12 by bolt connection, and the rightward starting port 211 of the air duct body 21 is aligned with and connected to the vent opening on the left side of the mounting frame 12, thereby connecting to the space between the mounting frame 12 and the conveyor belt 11. In this way, when the negative pressure suction pump is under negative pressure, the air duct body 21 can be blown by the air nozzle 13 (see Figure 1 ) to remove scraps of paper, dust and other impurities. Figure 5 A vertical dust filter 23 is bolted to the mounting plate 22, and a plurality of filter holes 231 arranged in an array are formed on the dust filter 23 (see Figure 8 The middle of the bottom wall of the air duct body 21 is provided with an opening 213 leading to the interior of the air duct body 21 (see Figure 6 ), after the dust filter 23 is aligned upward with the opening 213, the mounting plate 22 is moved upward close to the opening 213 until it completely covers the opening 213, and then detachably mounted on the outer side of the bottom wall of the air duct body 21 by bolt connection, and the dust filter 23 mounted on the mounting plate 22 extends from the opening 213 and is accommodated in the air duct body 21. The dust filter 23 is detachably mounted in the air duct body 21 by means of the mounting plate 22, as shown in FIG. Figure 3 As shown, it is blocked between the starting port 211 and the terminal port 212 of the air duct body 21 in a front-to-back horizontal manner to prevent large impurities sucked into the dust suction air duct from directly going to the negative pressure suction pump at the terminal port 212 and damaging the negative pressure suction pump.

[0028] After the dust suction duct has been sucking air for a period of time, a lot of impurities such as paper scraps and dust will accumulate on the right surface of the dust filter 23, which may block the filter holes 231 of the dust filter 23 in serious cases. Figure 4 , a left and right horizontal slide rail 24 is fixedly installed on the inner side of the top wall of the air duct body 21, which is located on the left side of the dust filter 23. A slider 25 is slidably installed on the slide rail 24, and a striker 26 extending to the right is installed on the right part of the slider 25. A drive motor 3 serving as a driving device is installed on the outer side of the top wall of the air duct body 21, and a rotating shaft 31 of the drive motor 3 extends downward, passes through the top wall of the air duct body 21 and extends into the interior of the air duct body 21. See Figure 4 , Fig. 9 and Fig.10A first swing rod 41 and a second swing rod 42 are provided between the rotating shaft 31 of the driving motor 3 and the slider 25, wherein: the starting end 411 of the first swing rod 41 is fixedly connected to the lower end of the rotating shaft 31 of the driving motor 3, and the end 412 is movably connected to the starting end 421 of the second swing rod 42; a boss 251 extends downward from the left portion of the slider 25, and the end 422 of the second swing rod 42 is movably connected to the boss 251. At this point, the rotating shaft 31 of the driving motor 3 is driven to connect to the slider 25 through the first swing rod 41 and the second swing rod 42, and the rotating shaft 31 of the driving motor 3 reciprocates around its own vertical axis in both positive and negative directions, which drives the end 412 of the first swing rod 41 to swing back and forth around the rotating shaft 31, thereby driving the second swing rod 42 to swing back and forth, and then drives the slider 25 to slide back and forth left and right along the slide rail 24, and the impact member 26 installed on the slider 25 moves back and forth left and right, as shown in FIG. Fig. 9 The impact member 26 is shown to impact the dust filter 23 to vibrate the dust filter 23 and shake off the impurities accumulated thereon. Preferably, the right part of the impact member 26 is covered with a silicone sleeve 261 to reduce the noise volume generated when the impact member 26 impacts the dust filter 23.

[0029] See Figure 4 The mounting plate 22 is provided with a dust collecting bin 221, which is arranged on the right side of the dust filter 23 near the start port 211 of the air duct body 21, and between the dust filter 23 and the start port 211 of the air duct body 21. The bin opening of the dust collecting bin 221 faces upward, and a bin cover 222 is arranged at the bin opening. The bottom of the bin cover 222 is fixedly provided with a front and rear horizontal rotating connecting rod 223, and the front and rear ends of the rotating connecting rod 223 are respectively rotatably connected to the front and rear bin walls of the dust collecting bin 221; Figure 4 and Figure 8 The rear end of the rotating connecting rod 223 passes through the wall of the dust collecting bin 221 and extends out of the dust collecting bin 221. The rear end of the rotating connecting rod 223 is fixedly mounted with a left and right horizontal pull piece 5. The maintenance personnel remove the air duct body 21 (see Figure 2 ) and pull the pull member 5 downward and leftward, the rotating connecting rod 223 is driven to rotate positively around its own horizontal axis, thereby driving the bin cover 222 fixedly mounted on the rotating connecting rod 223 to flip positively upward and rightward, exposing the bin opening of the dust collecting bin 221. Figure 7 Pulling the pull member 5 to the upper right to reset, the rotating connecting rod 223 is driven to rotate in the opposite direction around its own horizontal axis, thereby driving the bin cover 222 fixedly mounted on the rotating connecting rod 223 to flip downward and leftward in the opposite direction, and re-covering the bin opening 221, such as Figure 8 shown.

[0030] When the dust filter 23 needs to be cleaned, the maintenance personnel can first shut down the negative pressure vacuum pump at the end port 212 of the air duct body 21, and then pull the pull piece 5 from the outside of the air duct body 21 to the lower left and hold it, so that the pull piece 5 drives the rotating connecting rod 223 to rotate positively around its own horizontal axis, thereby driving the bin cover 222 fixedly installed on the rotating connecting rod 223 to flip positively upward and rightward to expose the bin opening of the dust collecting bin 221, and then start the driving motor 3, so that the driving motor 3 drives the slider 25 together with the impact piece 26 installed on the slider 25 to reciprocately impact the dust filter 23 as described above, so that the dust filter 23 vibrates and shakes off the impurities accumulated thereon, and the shaken-off impurities fall into the dust collecting bin 221 under the action of gravity. After the impact member 26 hits the dust filter 23 several times, the maintenance personnel can first turn off the driving motor 3 to stop the impact member 26 from hitting the dust filter 23, wait for more than ten seconds to let the impurities that have been shaken off fall into the dust collection bin 221 as much as possible, and then pull the pull member 5 to the upper right to reset, so that the bin cover 222 is reversed downward and turned left to cover the bin opening of the dust collection bin 221 again, and the operation of cleaning the dust filter 23 is completed. After that, the maintenance personnel can restart the negative pressure suction pump at the end port 212 of the air duct body 21, so that the air duct body 21 can again suck the impurities such as paper scraps and dust blown up by the air nozzle 13. When performing this cleaning operation, the maintenance personnel do not need to remove the dust filter 23 from the air duct body 21, and can use the impact member 26 to clean most of the impurities on the right surface of the dust filter 23, so that the filter hole 231 of the dust filter 23 is not easy to be blocked, and the entire cleaning operation takes a short time and does not affect dust collection. Only when the stubborn impurities on the dust filter 23 of the duct body 21 are not easily shaken off after long-term use, or when the dust bin 221 collects a large amount of impurities, maintenance personnel need to remove the mounting plate 22 from the duct body 21 for cleaning, without the need for frequent disassembly.

[0031] In this embodiment, the driving motor 3 is used as a driving device, driving the connecting slider 25 to drive the impact member 26 installed on the slider 25 to reciprocate and impact the dust filter 23. In other embodiments, the driving device can be changed to a telescopic reciprocating motor, and the telescopic rod of the telescopic reciprocating motor is directly connected to the impact member 26, driving the impact member 26 to reciprocate and impact the dust filter 23.

[0032] The above is only an implementation method of the invention, and does not limit the scope of patent protection. Those skilled in the art can make non-substantial changes or substitutions based on the invention, which still fall within the scope of patent protection.

Claims

1. A dust suction duct assembly for a corrugated board production line, comprising a duct body, the starting port of the duct body is used to connect to the dust suction location of the corrugated board production line, the end port is connected to a negative pressure suction pump, and a dust filter is detachably installed between the starting port and the end port of the duct body, characterized in that: An impact piece and a driving device connected to the impact piece are installed on the air duct body. The driving device drives the impact piece to reciprocately impact the dust filter screen to make the dust filter screen vibrate and shake off impurities.

2. The dust suction duct assembly according to claim 1, characterized in that: It includes a slide rail fixedly installed on the inner side of the top wall of the air duct body and a slider slidably installed on the slide rail, and the impact member is installed on the slider; the driving device specifically drives the connected slider, and the driving device drives the slider to slide back and forth along the slide rail, thereby driving the impact member installed on the slider to move back and forth to impact the dust filter.

3. The dust suction duct assembly according to claim 2, characterized in that: The driving device is specifically a driving motor, which is installed on the outer side of the top wall of the air duct body, and its rotating shaft passes through the top wall of the air duct body and extends into the interior of the air duct body; the driving motor is driven and connected to the slider through the first swing rod and the second swing rod. Specifically, the starting end of the first swing rod is fixedly connected to the rotating shaft of the driving motor and the end is movably connected to the starting end of the second swing rod, and the end of the second swing rod is movably connected to the slider. The reciprocating rotation of the rotating shaft of the driving motor drives the first swing rod to swing back and forth around the rotating shaft, thereby driving the second swing rod to swing back and forth to drive the slider to slide back and forth along the slide rail.

4. The dust suction duct assembly according to claim 3, characterized in that: It includes a mounting plate, and the dust filter is detachably mounted on the mounting plate; the bottom wall of the air duct body is provided with an opening leading to the interior of the air duct body, and the mounting plate is detachably mounted on the outside of the bottom wall of the air duct body and covers the opening, so that the dust filter extends from the opening and is accommodated in the interior of the air duct body.

5. The dust suction duct assembly according to claim 4, characterized in that: The mounting plate is provided with a dust collecting bin for collecting impurities shaken off by the dust filter. The dust collecting bin is located beside the dust filter with the bin opening facing upward. When the dust filter is accommodated in the air duct body, the dust collecting bin is located between the dust filter and the starting end of the air duct body.

6. The dust suction duct assembly according to claim 5, characterized in that: The invention comprises a bin cover covering the bin opening of the dust collecting bin, a rotating connecting rod is fixedly installed at the bottom of the bin cover, and the bin cover is rotatably connected to the bin wall of the dust collecting bin through the rotating connecting rod. When the bin cover and the rotating connecting rod rotate forwardly around the horizontal axis of the rotating connecting rod, the bin cover is flipped forwardly to expose the bin opening of the dust collecting bin.

7. The dust suction duct assembly according to claim 6, characterized in that: One end of the rotating connecting rod passes through the wall of the dust collecting bin and extends out of the dust collecting bin, and a pulling piece is fixedly mounted on the end of the rotating connecting rod for people to pull.

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