Dust purging and recycling device

Abstract

The utility model belongs to the technical field of electrode foil production and transmission, and particularly relates to a dust blowing and recycling device which solves the problem that dust particles falling when electrode foil is transmitted on a transmission roller cannot be timely and efficiently cleaned. The dust blowing and recycling device comprises a blowing and sucking pipe parallel to a transmission roller, one end of the blowing and sucking pipe is connected with a negative pressure dust sucking mechanism, the other end of the blowing and sucking pipe is connected with a positive pressure dust blowing mechanism, and a plurality of air holes facing the transmission roller are axially distributed in the pipe wall of the blowing and sucking pipe. Dust on the foil surface and the surface of the transmission roller is efficiently removed through the circulating work of blowing and sucking, the influence of the dust on the transmission foil is avoided, and the appearance and the performance of a transmitted product are protected.

Description

Technical Field

[0001] This utility model belongs to the field of electrode foil production transmission technology, and specifically relates to a dust blowing and recycling device. Background Technology

[0002] As the three-dimensional composite electrode foil travels on the drive roller, aluminum powder particles frequently fall off. The aluminum powder falls onto the electrode foil surface or the drive roller surface below. The aluminum powder that falls onto the foil surface may form bumps on the foil surface, while the aluminum powder particles that accumulate on the drive roller may cause particle scratches on the roller surface. Both of these defects will seriously affect the appearance and performance of the product, and may even lead to foil breakage and shutdown, causing great economic losses.

[0003] Currently, some electrode foil transmission mechanisms lack corresponding dust cleaning structures, making it impossible to avoid the impact of falling dust particles, which affects the stable transmission and quality of the product. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a dust blowing and recycling device.

[0005] To achieve the innovative objectives of this utility model, the following technical solutions can be used:

[0006] A dust blowing and recycling device includes a blowing and suction pipe arranged parallel to a drive roller. One end of the blowing and suction pipe is connected to a negative pressure dust suction mechanism, and the other end is connected to a positive pressure dust blowing mechanism. A plurality of air holes facing the drive roller are axially distributed on the pipe wall.

[0007] This utility model dust blowing and recovery device can be used to blow away and collect surface dust from a drive roller and the electrode foil wound around it. The blowing and suction pipe is parallel to the drive roller, and the air hole is located on the side of the blowing and suction pipe near the drive roller, facing the surface of the drive roller. The blowing and suction pipe is connected to a negative pressure dust suction mechanism and a positive pressure dust blowing mechanism. The negative pressure dust suction mechanism is used to apply negative pressure to the air outlet of the blowing and suction pipe, causing the air hole to draw air into the pipe, thereby removing external dust. The positive pressure dust blowing mechanism is used to input compressed gas into the pipe, and part of this gas is output from the air hole to clean the drive roller. The rollers and foils are blown away for dust, while another part is output from the negative pressure dust collection mechanism at the other end. In the process, the dust accumulated in the tube is taken away. The negative pressure dust collection mechanism is equipped with a dust collection structure such as a filter component, which can achieve the effect of dust recycling and environmental protection. In addition, the negative pressure dust collection mechanism and the positive pressure dust blowing mechanism are switched on and off alternately and repeatedly cycled. Dust cleaning is achieved in the process of blowing and sucking. This avoids problems such as aluminum powder falling off the surface of the electrode foil during the transmission process, causing impurities to be scattered on the foil surface or accumulated on the transmission roller, resulting in particle spots and embossed marks on the surface of the electrode foil.

[0008] In the aforementioned dust blowing and recovery device, the positive pressure dust blowing mechanism includes a compressed air generating component, which is connected to the air inlet end of the blowing and suction pipe via an air inlet pipe, and a solenoid valve assembly is provided between the air inlet end and the compressed air generating component.

[0009] The positive pressure dust removal mechanism specifically consists of a compressed air generating component that outputs compressed gas to the blow-suction pipe through an air inlet pipe. A solenoid valve assembly is installed along the transmission path to control the output of this compressed gas. When closed, it effectively seals the air inlet of the blow-suction pipe, ensuring the dust removal efficiency of the negative pressure dust removal mechanism. The specific structure and connection details of the compressed air generating component and the solenoid valve assembly are existing technologies and will not be elaborated further.

[0010] In the aforementioned dust blowing and recycling device, the negative pressure dust collection mechanism includes a negative pressure fan, which is mounted on the dust collection box and has its negative pressure end extending into the dust collection box. The air outlet of the blowing and suction pipe is connected to the dust collection box.

[0011] The dust collection box has a closed cavity structure. The negative pressure end of the negative pressure fan and the air outlet end of the suction pipe are both connected to this closed cavity, ensuring that the negative pressure force of the negative pressure fan acts on the air outlet end, achieving an effective dust extraction effect. The negative pressure fan is existing technology, and its specific structure will not be elaborated.

[0012] In the aforementioned dust blowing and recovery device, a filter assembly is installed inside the dust collection box, and the filter assembly intercepts air between the outlet end and the negative pressure end.

[0013] The filter assembly is located at the air outlet and is used to filter out dust impurities after the dust-laden gas is drawn out, thereby realizing dust recycling, improving resource utilization, and avoiding dust pollution.

[0014] In the aforementioned dust blowing and recovery device, the dust collection box includes a fan mounting cavity on the upper side and a filter cavity on the lower side. The fan mounting cavity and the filter cavity are separated by a partition. The negative pressure fan is installed in the fan mounting cavity, and the negative pressure end is provided with a duct through the partition.

[0015] The dust collection box is divided into two areas by a partition. The fan mounting chamber is used to install the negative pressure fan and related components, ensuring the stable and safe installation of the negative pressure fan and preventing dust in the air from accumulating on the negative pressure fan, which would affect the fan's heat dissipation and service life. The filter chamber is used to install the filter components, preventing external moisture and debris from affecting the filtration effect and ensuring good dust filtration and recovery.

[0016] In the aforementioned dust blowing and recovery device, the filter assembly includes a filter bag, the bag opening of which is detachably connected to the bottom surface of the filter chamber, and the air outlet is routed through an air outlet pipe through the bottom surface of the dust collection box, with the inner end of the air outlet pipe connected to the bag opening.

[0017] The filtration assembly is specifically implemented through a filter bag with an open bottom. This filter bag is micron-sized and has a highly efficient dust filtration effect. The filter bag is detachably fixed inside the dust collection box through the bag opening, which is flexible and easy to replace or clean in time when the filtration efficiency decreases, thus improving its practicality.

[0018] Specifically, the bottom surface of the dust collection box is provided with two parallel and oppositely facing L-shaped interlocking strips. The filter bag opening is provided with a support ring hoop. The straight sections on both sides of the support ring hoop are slidably connected to the interlocking strips. The filter bag body is provided with spirally distributed support rings to keep the filter bag in a cylindrical shape. The filter chamber is hinged to a switch door on the side. The switch door is located in the length direction of the interlocking strips to facilitate the installation and removal of the filter bag.

[0019] In the aforementioned dust blowing and recovery device, an airflow detection component is provided between the filter component and the negative pressure end. The airflow detection component is fixed on the dust collection box, and its detection head is located on the outside of the opening of the negative pressure end.

[0020] The airflow detection component is used to detect the airflow rate after filtration, thereby determining whether the filter bag is clogged, facilitating timely replacement or cleaning of the filter bag, and ensuring efficient dust removal and collection.

[0021] In the dust blowing and recovery device described above, the cross-section of the blowing and suction pipe is circular or polygonal, and the air hole is in the shape of a frustum or prism with a larger outer diameter and a smaller inner diameter.

[0022] The cross-section of the blow-suction pipe and the shape of the air holes can be designed in various styles, which can be selected according to specific needs. Moreover, the end of the air hole near the drive roller is a large opening and the other end is a small opening, which increases the negative pressure suction area and improves the negative pressure dust collection effect.

[0023] Preferably, the spacing between adjacent pores is between 5-10 mm, the diameter of the smaller end of the frustum-shaped pore is between 1-3 mm, and the diameter of the larger end is between 5-8 mm.

[0024] In the dust blowing and recovery device described above, the drive roller is rotatably connected to the enclosed box, and the blowing and suction pipe is set inside the enclosed box and located below the drive roller.

[0025] The end of the blow-suction tube is fixedly connected to the side wall of the sealed box;

[0026] Alternatively, the blow-suction pipe can be rotatably connected to the side wall of the sealed box, and a reciprocating rotation drive structure can be provided between the blow-suction pipe and the sealed box.

[0027] Both the blow-suction pipe and the drive roller are housed within a sealed chamber, forming a closed cavity. This cavity ensures that the compressed gas output from the positive pressure dust-blowing mechanism to the drive roller can circulate within the chamber, maximizing dust agitation and facilitating its removal by the negative pressure dust-collecting mechanism. Simultaneously, it confines the dust generated during transmission within the chamber, minimizing spillage and preventing dust contamination. The sealed chamber features foil through-holes, the length and width of which are adapted to the width and thickness of the foil. The foil passes through these through-holes and is wound around the drive roller. The small gap between the foil and the through-holes also allows for the adaptive input of external air during negative pressure dust collection, ensuring effective suction. The blow-suction pipe can be fixed or rotatably connected to the sealed chamber. In the rotatable connection, the reciprocating drive structure controls the blow-suction pipe to rotate within a certain angle, effectively oscillating the air vent within a specific angle, thus improving the efficiency of dust blowing and suction.

[0028] Specifically, the side wall of the enclosed box is provided with a mounting through hole. The end of the blow-suction pipe is rotatably connected to the mounting through hole via a bearing, and the end protrudes outward. The reciprocating rotation drive structure includes a shift fork driver disposed on the outer side wall of the enclosed box. The output end of the shift fork driver is connected to the blow-suction pipe, which can drive the blow-suction pipe to reciprocate. Of course, the shift fork driver can also be replaced by a linear driver or a circumferential driver, supplemented by a matching connecting transmission structure. The shift fork driver is existing technology and will not be further elaborated.

[0029] In the aforementioned dust blowing and recovery device, the negative pressure fan and air volume detection component of the negative pressure dust collection mechanism, as well as the compressed air generation component and solenoid valve component of the positive pressure dust blowing mechanism, are respectively connected to a PLC programmable logic controller. The PLC programmable logic controller is also connected to an alarm interaction component.

[0030] The PLC (Programmable Logic Controller) is used to coordinate the start and stop of the negative pressure dust collection mechanism and the positive pressure dust blowing mechanism. It can also determine whether the filter needs to be replaced or cleaned based on data provided by the airflow detection component. When the airflow is detected to be lower than a predetermined value, a signal is sent through the warning interaction component to remind the user to replace the filter bag, ensuring the efficiency of dust blowing. The specific structure and control methods of the PLC are common knowledge and will not be elaborated upon here.

[0031] Compared with the prior art, the present invention has the following main advantages:

[0032] 1. The blow-suction pipe is connected to a negative pressure dust collection mechanism and a positive pressure dust blowing mechanism. The negative pressure dust collection mechanism is used to apply negative pressure to the air outlet of the blow-suction pipe, so that the air hole draws air into the pipe to remove external dust. The positive pressure dust blowing mechanism is used to input compressed gas into the pipe. Part of the gas is output from the air hole to blow away dust from the drive roller and foil, and the other part is output from the negative pressure dust collection mechanism at the other end, taking away the dust accumulated in the pipe during the process.

[0033] 2. The negative pressure dust collection mechanism and the positive pressure dust blowing mechanism alternately switch on and off and repeat repeatedly. Dust is cleaned in the process of blowing and suction, which avoids problems such as aluminum powder falling off the surface of the electrode foil during transmission, causing impurities to be scattered on the foil surface or accumulated on the transmission roller, resulting in particle spots and embossed marks on the surface of the electrode foil.

[0034] 3. The dust collection box is divided into two areas by a partition. The fan mounting chamber is used to install the negative pressure fan and related components, ensuring the stable and safe installation of the negative pressure fan and preventing dust in the air from accumulating on the negative pressure fan, affecting the fan's heat dissipation and service life. The filter chamber is used to install the filter components, preventing external moisture and debris from affecting the filtration effect and ensuring good dust filtration and recovery.

[0035] 4. The filtration assembly is specifically implemented through a filter bag with an open bottom. This filter bag is micron-sized and has a highly efficient dust filtration effect. The filter bag can be detachably fixed in the dust collection box through the bag opening, which has flexible disassembly and facilitates timely replacement or cleaning when the filtration efficiency decreases, thus improving practicality.

[0036] 5. The airflow detection component is used to detect the airflow rate after filtration, thereby determining whether the filter bag is clogged, facilitating timely replacement or cleaning of the filter bag, and ensuring efficient dust removal and collection.

[0037] 6. The air vent has a large opening at one end near the drive roller and a small opening at the other end, which increases the area for negative pressure suction and improves the negative pressure dust collection effect.

[0038] 7. Both the blow-suction pipe and the drive roller are set inside a closed box, which forms a closed cavity. On the one hand, this ensures that the compressed gas output by the positive pressure dust blowing mechanism to the drive roller can form a backflow inside the box, agitating the dust as much as possible, which is conducive to the negative pressure dust suction mechanism to remove it. On the other hand, it confines the dust generated during the transmission process inside the box as much as possible, reducing overflow and avoiding dust pollution.

[0039] 8. The blow-suction pipe is rotatably connected inside the enclosed box. The reciprocating rotation drive structure controls the blow-suction pipe to reciprocate within a certain angle, which is equivalent to the air hole swinging and rotating within a certain angle, thus improving the efficiency of dust blowing and suction.

[0040] 9. The PLC programmable logic controller is used to coordinate the start and stop of the negative pressure dust collection mechanism and the positive pressure dust blowing mechanism. At the same time, it can also determine whether the filter component needs to be replaced or cleaned based on the relevant data provided by the air volume detection component. When the air volume is detected to be lower than the predetermined value, a signal is sent through the warning interaction component to remind the filter bag to be replaced, thus ensuring the efficiency of dust blowing. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the overall structure provided by this utility model (Example 1);

[0042] Figure 2 This is a cross-sectional schematic diagram of the blow-suction tube provided by this utility model;

[0043] Figure 3 This is a schematic diagram showing the installation and fixing of the filter bag and dust collection box provided by this utility model;

[0044] Figure 4 This is a schematic diagram of the blow-suction tube provided by this utility model installed on a closed box (Example 2).

[0045] In the diagram, the components are: transmission roller 1, suction pipe 2, air hole 21, air inlet end 22, air outlet end 23, negative pressure dust collection mechanism 3, negative pressure fan 31, negative pressure end 32, air outlet pipe 33, positive pressure dust blowing mechanism 4, compressed air generating assembly 41, air inlet pipe 42, solenoid valve assembly 43, dust collection box 5, fan mounting cavity 51, filter cavity 52, partition plate 53, air duct through hole 54, filter assembly 6, filter bag 61, bag opening 62, support ring 63, snap-fit ​​strip 64, air volume detection assembly 7, detection head 71, sealed box 8, mounting through hole 81, reciprocating rotation drive structure 9, and shift fork driver 91. Detailed Implementation

[0046] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0047] Example 1

[0048] Specific implementation examples Figure 1-3 As shown, this dust blowing and recycling device includes a blowing and suction pipe 2 arranged parallel to the drive roller 1. One end of the blowing and suction pipe 2 is connected to a negative pressure dust suction mechanism 3, and the other end is connected to a positive pressure dust blowing mechanism 4. Several air holes 21 facing the drive roller 1 are axially distributed on the pipe wall of the blowing and suction pipe 2.

[0049] Specifically, this dust blowing and recovery device is used to blow away and collect surface dust from the drive roller 1 and the electrode foil wound and conveyed on it. The blowing and suction pipe 2 is parallel to the drive roller 1, and the air hole 21 is located on the side of the blowing and suction pipe 2 near the drive roller 1, facing the surface of the drive roller 1. The blowing and suction pipe 2 is connected to a negative pressure dust suction mechanism 3 and a positive pressure dust blowing mechanism 4. The negative pressure dust suction mechanism 3 is used to apply negative pressure to the air outlet 23 of the blowing and suction pipe 2, so that the air hole 21 draws air into the pipe, thereby removing external dust. The positive pressure dust blowing mechanism 4 is used to input compressed gas into the pipe, part of which exits through the air hole 21. The output is used to blow away dust from the drive roller 1 and the foil, while the other part is output from the negative pressure dust collection mechanism 3 at the other end. In the process, the dust accumulated in the tube is taken away. The negative pressure dust collection mechanism 3 is equipped with a dust collection structure such as the filter component 6, which can achieve the effect of dust recycling and environmental protection. In addition, the negative pressure dust collection mechanism 3 and the positive pressure dust blowing mechanism 4 alternately switch on and off and repeat the cycle. In the process of blowing and sucking, dust is cleaned, which avoids problems such as aluminum powder falling off the surface of the electrode foil during the transmission process, causing impurities to be scattered on the foil surface or accumulated on the drive roller 1, resulting in particle spots and embossed marks on the surface of the electrode foil.

[0050] like Figure 1 As shown, the positive pressure dust blowing mechanism 4 includes a compressed air generating component 41, which is connected to the air inlet end 22 of the blowing and suction pipe 2 through the air inlet pipe 42. A solenoid valve component 43 is provided between the air inlet end 22 and the compressed air generating component 41.

[0051] Specifically, the positive pressure dust removal mechanism 4 is composed of a compressed air generating component 41 that outputs compressed gas to the blow-suction pipe 2 through an air inlet pipe 42. A solenoid valve component 43 is provided on the transmission path to realize the switching of the compressed gas output. When closed, it is equivalent to the air inlet end 22 of the blow-suction pipe 2 being closed, thus ensuring the dust removal effect of the negative pressure dust removal mechanism 3.

[0052] like Figure 1As shown, the negative pressure dust collection mechanism 3 includes a negative pressure air mechanism 31, which is mounted on the dust collection box 5, with the negative pressure end 32 extending into the dust collection box 5. The air outlet end 23 of the blow-suction pipe 2 is connected to the dust collection box 5. A filter assembly 6 is installed inside the dust collection box 5, which intercepts air between the air outlet end 23 and the negative pressure end 32. The dust collection box 5 includes a fan mounting cavity 51 on the upper side and a filter cavity 52 on the lower side, which are separated by a partition 53. The negative pressure air mechanism 31 is installed inside the fan mounting cavity 51, and the negative pressure end 32 passes through the air duct through hole 54 of the partition 53. The filter assembly 6 includes a filter bag 61, with the bag opening 62 detachably connected to the bottom surface of the filter cavity 52. ​​The air outlet end 23 passes through the bottom surface of the dust collection box 5 via an air outlet pipe 33, and the inner end of the air outlet pipe 33 is connected to the bag opening 62. An airflow detection component 7 is provided between the filter assembly 6 and the negative pressure end 32. The airflow detection component 7 is fixed on the dust collection box 5, and its detection head 71 is located on the outside of the opening of the negative pressure end 32.

[0053] Specifically, the dust collection box 5 has a closed cavity structure. The negative pressure end 32 of the negative pressure fan mechanism 31 and the air outlet end 23 of the blower pipe 2 are both connected to this closed cavity, ensuring that the negative pressure force of the negative pressure fan mechanism 31 acts on the air outlet end 23, achieving an effective dust extraction effect. The filter assembly 6 is located on the air outlet end 23 and is used to filter out dust impurities after the dust-laden gas is extracted, realizing dust recovery, improving resource utilization, and avoiding dust pollution. The dust collection box 5 is divided into two areas by a partition 53. The fan mounting cavity 51 is used to install the negative pressure fan mechanism 31 and related components, ensuring the stable and safe installation of the negative pressure fan mechanism 31 and preventing dust in the air from accumulating on the negative pressure fan mechanism 31, affecting the fan's heat dissipation and service life. The filter cavity 52 is used to install the filter assembly 6, preventing external moisture and debris from affecting the filtration effect and ensuring a good dust filtration and recovery effect. The filter assembly 6 is specifically implemented through a filter bag 61 with an open lower end. This filter bag 61 is micron-sized, providing highly efficient dust filtration. The specific mesh size is selected based on the particle size of the aluminum powder dust. The filter bag 61 is detachably fixed inside the dust collection box 5 through the bag opening 62, offering flexible disassembly for timely replacement or cleaning when filtration efficiency decreases, thus improving practicality. The airflow detection assembly 7 is used to detect the outlet airflow rate after filtration, thereby determining whether the filter bag 61 is clogged, facilitating timely replacement or cleaning of the filter bag 61, and ensuring efficient dust collection.

[0054] As a specific optimization of this embodiment, two parallel and oppositely facing L-shaped snap-fit ​​strips 64 are provided on the bottom surface of the dust collection box 5. A support ring 63 is provided on the bag opening 62 of the filter bag 61. The straight sections on both sides of the support ring 63 are slidably connected to the snap-fit ​​strips 64. The filter bag 61 is provided with spirally distributed support rings on the bag body, so that the filter bag 61 remains cylindrical. A switch door is hinged to the side of the filter chamber 52. The switch door is located in the length direction of the snap-fit ​​strips 64, which facilitates the installation and removal of the filter bag 61.

[0055] In this embodiment, the blow-suction pipe 2 has a circular cross-section, and the air hole 21 is a frustum shape with a larger outer diameter and a smaller inner diameter. The end of the air hole 21 near the drive roller 1 has a larger opening, and the other end has a smaller opening, which increases the area for negative pressure suction and improves the negative pressure dust collection effect. The distance between adjacent air holes 21 is between 5-10 mm, and the diameter of the smaller end of the frustum-shaped air hole 21 is between 1-3 mm, while the diameter of the larger end is between 5-8 mm.

[0056] like Figure 1 As shown, the transmission roller 1 is rotatably connected to the enclosed box 8, and the blow-suction pipe 2 is set inside the enclosed box 8 and located below the transmission roller 1. The end of the blow-suction pipe 2 is fixedly connected to the side wall of the enclosed box 8.

[0057] Specifically, both the blow-suction pipe 2 and the drive roller 1 are housed within the enclosed box 8, which forms a closed cavity. This cavity ensures that the compressed gas output from the positive pressure dust blowing mechanism 4 to the drive roller 1 can circulate within the box, agitating the dust as much as possible, which is beneficial for the negative pressure dust suction mechanism 3 to remove it. Furthermore, it confines the dust generated during transmission within the box as much as possible, reducing spillage and preventing dust pollution. The enclosed box 8 is equipped with foil through-holes that allow the foil to pass through. The length and width of the through-holes are adapted to the width and thickness of the foil. The foil passes through the through-holes and is wound around the drive roller 1. Simultaneously, the small gap between the foil and the through-holes allows for the adaptive input of external air during the operation of the negative pressure dust suction mechanism 3, ensuring effective negative pressure dust suction.

[0058] As an optimization, the negative pressure fan mechanism 31, the air volume detection component 7, the compressed air generation component 41, and the solenoid valve component 43 are respectively connected to the PLC programmable logic controller. The PLC programmable logic controller is also connected to an alarm interaction component.

[0059] Specifically, the PLC programmable logic controller is used to coordinate the start and stop of the negative pressure dust collection mechanism 3 and the positive pressure dust blowing mechanism 4. At the same time, it can also determine whether the filter component 6 needs to be replaced or cleaned based on the relevant data provided by the air volume detection component 7. When the air volume is detected to be lower than the predetermined value, a signal is sent through the warning interaction component to remind the filter bag 61 to be replaced, so as to ensure the efficiency of dust blowing.

[0060] Specific working principle: The electrode foil passes through the foil through-hole and is wound around the transmission roller 1. The air holes 21 of the blow-suction pipe 2 alternately blow and suck. During dust blowing, the solenoid valve assembly 43 opens, and the compressed air generated by the compressed air generating assembly 41 is input into the blow-suction pipe 2. Part of this compressed air is output from the air holes 21 to the transmission roller 1, and the other part, carrying some of the dust deposited in the pipe, is output from the air outlet 23. This part of the gas is filtered by the filter bag 61 and discharged outwards. After a preset blowing time, the negative pressure air mechanism 31 on the pipe wall of the solenoid valve assembly 43 starts to draw air. The air in the dust collection box 5, carrying dust, is drawn into the blow-suction pipe 2 through the air holes 21, and after being filtered by the filter bag 61, it is sucked outwards. After a preset dust suction time, the blowing starts again, and this cycle repeats. Meanwhile, the PLC programmable logic controller adaptively adjusts the power of the negative pressure fan mechanism 31 based on the wind speed data provided by the air volume detection component 7, so that the air volume is basically stable. If the power has reached the upper limit and the wind speed data still does not reach the preset value, it indicates that the filter bag 61 may be clogged. At this time, the relevant signal is issued through the warning interaction component to remind the management personnel to replace or clean the filter bag 61 in time.

[0061] Example 2

[0062] The working principle of this embodiment is basically the same as that of embodiment 1, except that the blowing and suction tube 2 is set in a different way.

[0063] Specific implementation examples Figure 4 As shown, the blow-suction pipe 2 is rotatably connected to the side wall of the sealed box 8, and a reciprocating rotation drive structure 9 is provided between the blow-suction pipe 2 and the sealed box 8.

[0064] Specifically, the reciprocating drive structure 9 controls the blow-suction pipe 2 to reciprocate within a certain angle, which is equivalent to the air hole 21 swinging within a certain angle, thereby improving the efficiency of dust blowing and suction.

[0065] In this embodiment, the side wall of the sealed box 8 is provided with a mounting through hole 81. The end of the blow-suction pipe 2 is rotatably connected to the mounting through hole 81 through a bearing, and the end is exposed outward. The reciprocating rotation drive structure 9 includes a shift fork driver 91 provided on the outer side wall of the sealed box 8. The output end of the shift fork driver 91 is connected to the blow-suction pipe 2 and can drive the blow-suction pipe 2 to reciprocate.

[0066] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A dust blowing and recovery device, characterized in that, It includes a blow-suction pipe (2) arranged parallel to the transmission roller (1), one end of the blow-suction pipe (2) is connected to a negative pressure dust collection mechanism (3), and the other end is connected to a positive pressure dust blowing mechanism (4). A number of air holes (21) facing the transmission roller (1) are axially distributed on the pipe wall of the blow-suction pipe (2).

2. The dust blowing and recovery device according to claim 1, characterized in that, The positive pressure dust blowing mechanism (4) includes a compressed air generating component (41), which is connected to the air inlet end (22) of the blowing and suction pipe (2) through an air inlet pipe (42). A solenoid valve assembly (43) is provided between the air inlet end (22) and the compressed air generating component (41).

3. The dust blowing and recovery device according to claim 1, characterized in that, The negative pressure dust collection mechanism (3) includes a negative pressure air mechanism (31), which is set on the dust collection box (5) and the negative pressure end (32) extends into the dust collection box (5). The air outlet (23) of the blow pipe (2) is connected to the dust collection box (5).

4. The dust blowing and recovery device according to claim 3, characterized in that, The dust collection box (5) is equipped with a filter assembly (6), which intercepts air between the outlet end (23) and the negative pressure end (32).

5. The dust blowing and recovery device according to claim 4, characterized in that, The dust collection box (5) includes a fan mounting cavity (51) on the upper side and a filter cavity (52) on the lower side. The fan mounting cavity (51) and the filter cavity (52) are separated by a partition (53). The negative pressure air mechanism (31) is located in the fan mounting cavity (51), and the negative pressure end (32) passes through the air duct through hole (54) of the partition (53).

6. The dust purging and recovery device according to claim 4, characterized in that, The filter assembly (6) includes a filter bag (61), the bag opening (62) of the filter bag (61) is detachably connected to the bottom surface of the filter chamber (52), the air outlet (23) passes through the bottom surface of the dust collection box (5) through the air outlet pipe (33), and the inner end of the air outlet pipe (33) is connected to the bag opening (62).

7. The dust purging and recovery device according to claim 4, characterized in that, An airflow detection component (7) is provided between the filter assembly (6) and the negative pressure end (32). The airflow detection component (7) is fixed on the dust collection box (5), and its detection head (71) is located on the outside of the opening of the negative pressure end (32).

8. The dust purging and recovery device according to claim 1, characterized in that, The blow-suction tube (2) has a circular or polygonal cross-section, and the air hole (21) is a frustum or prism shape with a larger outer diameter and a smaller inner diameter.

9. The dust purging and recovery device according to any one of claims 1-8, characterized in that, The drive roller (1) is rotatably connected to the enclosed box (8), and the blow-suction pipe (2) is set inside the enclosed box (8) and located below the drive roller (1); The end of the blow-suction tube (2) is fixedly connected to the side wall of the closed box (8); Alternatively, the blow-suction pipe (2) is rotatably connected to the side wall of the sealed box (8), and a reciprocating rotation drive structure (9) is provided between the blow-suction pipe (2) and the sealed box (8).

10. The dust purging and recovery device according to any one of claims 1-8, characterized in that, The negative pressure dust collection mechanism (3)’s negative pressure air mechanism (31) and air volume detection component (7) and the positive pressure dust blowing mechanism (4)’s compressed air generation component (41) and solenoid valve component (43) are respectively connected to the PLC programmable logic controller. The PLC programmable logic controller is also connected to an alarm interaction component.

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