A semi-automatic glue box dust removal machine

Abstract

The invention discloses a semi-automatic glue box dust removal machine, which belongs to the technical field of dust removal equipment, and comprises a loading component, a dust removal component, a unloading component and a dust suction component, wherein the dust removal component comprises a dust removal box body, a feeding port is arranged on the left side of the dust removal box body, and a discharging port is arranged on the right side of the dust removal box body, the loading component is arranged on the left side of the dust removal component and docked with the feeding port, the loading component is used for conveying the glue box with dust removal into the dust removal component, the unloading component is arranged on the right side of the dust removal component and docked with the discharging port, the unloading component is used for transporting the glue box after the dust removal operation is completed, the dust suction component is arranged at the bottom of the unloading component, and the output end of the dust suction component is arranged in the dust removal component, the dust removal component also comprises a first brush assembly, a second brush assembly, a third brush assembly, a forward assembly and an electrostatic air gun, and the dust removal component can perform all-round dust removal on the glue box without dead angles.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal equipment, in particular to a semi-automatic glue box dust removal machine. Background Art

[0002] A plastic box is a container for parts, which is widely used in factories, warehouses and other places to load items. In particular, in factories, most of the various products produced need to be contained and transported in plastic boxes, and these plastic boxes need to be cleaned regularly during use. In the known plastic box cleaning, when the plastic box is placed with products, a rag is used to wipe it clean locally. With the development of the times and enterprises, the requirements of end customers for products have established dust-free workshop operations, requiring that the plastic box before entering the dust-free workshop is completely free of dust. In order to meet the environmental requirements of existing customers, the existing working method can only use an air gun to blow the appearance of the plastic box or wipe it manually bit by bit. In this way, large-scale shipments not only limit production efficiency, but also are accompanied by many problems, such as: first, due to the large-scale use of plastic boxes in a unit time, a large number of people are invested in wiping and cleaning the plastic boxes, and a large amount of labor costs are invested; second, during the wiping process, a large amount of auxiliary equipment is invested due to the large use of consumable tools such as rags; when wiping manually, due to the many corners around the plastic box, it is easy to miss or not wipe clean, and the customer's use indicators cannot be met. Summary of the invention

[0003] The purpose of the present invention is to provide a semi-automatic glue box dust removal machine to solve the technical problems in the prior art that due to the large-scale use of glue boxes per unit time, a large number of people are required to wipe and clean the glue boxes, resulting in a large amount of labor cost; during the wiping process, a large amount of auxiliary equipment is required due to the large amount of consumable tools such as rags; when wiping manually, due to the many corners around the glue box, it is easy to miss the glue box or the glue box is not wiped clean, thus failing to meet the customer's usage indicators.

[0004] The present invention provides a semi-automatic rubber box dust removal machine, comprising a loading component, a dust removal component, a unloading component and a dust suction component, the dust removal component comprising a dust removal box, a feeding port is provided on the left side of the dust removal box, and a discharging port is provided on the right side of the dust removal box, the loading component is arranged on the left side of the dust removal component and is connected with the feeding port, the unloading component is arranged on the right side of the dust removal component and is connected with the discharging port, the dust suction component is arranged at the bottom of the unloading component, and the output end of the dust suction component is arranged in the dust removal component, the dust removal component also includes a first brush assembly, a second brush assembly, a third brush assembly, a forward assembly and an electrostatic air gun, the first brush assembly is arranged on the left side of the dust removal box, the second brush assembly is arranged on the right side of the dust removal box, the third brush assembly is arranged in the middle of the dust removal box, the forward assembly is arranged on the inner top of the dust removal box, the electrostatic air gun is arranged at the bottom of the dust removal box, and the electrostatic air gun is fixedly connected to the dust removal box by bolts.

[0005] Furthermore, the loading and unloading parts include a conveyor belt, which is divided into three sections. The left part of the conveyor belt is arranged in the loading part, the middle part of the conveyor belt is arranged inside the dust removal box, the right part of the conveyor belt is arranged in the unloading part, and a conveying motor is provided on the right side of the unloading part.

[0006] Furthermore, the first brush assembly includes a first motor, a first cylinder, a first control panel and two first brush rollers, the two first brush rollers are arranged on the top of the first control panel, the first motor is arranged at the bottom of the first control panel, a first bevel gear is sleeved on the main shaft of the first motor, a first bevel gear is also arranged at the bottom of the first brush roller arranged at the rear side of the first control panel, four first gears are also arranged on the first control panel, the first cylinder is arranged at the front side of the first control panel, and the output end of the first cylinder is fixedly connected to the first control panel.

[0007] Furthermore, the second brush assembly includes a second motor, a second cylinder, a second control board and two second brush rollers, the two second brush rollers are arranged on the top of the second control board, the second motor is arranged at the bottom of the second control board, a second bevel gear is sleeved on the main shaft of the second motor, a second bevel gear is also arranged at the bottom of the second brush roller arranged at the rear side of the second control board, four second gears are also arranged on the second control board, the second cylinder is arranged at the front side of the second control board, and the output end of the second cylinder is fixedly connected to the second control board.

[0008] Furthermore, the third brush assembly includes a third motor, a top brush roller, a front brush roller and a rear brush roller, the top brush roller being arranged on the upper inner side of the dust removal box, and a third bevel gear is provided on the front and rear sides of the top brush roller, the front brush roller is arranged on the front side of the top brush roller, and a third bevel gear is also provided on the top of the front brush roller, the front brush roller and the top brush roller are connected by two meshing third bevel gears, the rear brush roller is arranged on the rear side of the top brush roller, and a third bevel gear is also provided on the top of the rear brush roller, the rear brush roller and the top brush roller are also connected by two meshing third bevel gears, the third motor is arranged at the bottom of the front brush roller, and the main shaft of the third motor is fixedly connected to the front brush roller.

[0009] Furthermore, the forward component includes a forward motor and two forward conveyor belts, the two forward conveyor belts are arranged on the inner top of the dust removal box body, a linkage shaft is provided on the left side of the two forward conveyor belts, the transmission motor is arranged on the inner top of the dust removal box body, and the main shaft of the forward conveyor belt is connected to the linkage shaft through a transmission belt.

[0010] Furthermore, a pressure wheel is provided on the left side of the forward conveyor belt.

[0011] Furthermore, the dust suction component includes a dust suction shell, a dust suction hood and a vortex fan. The dust suction shell is arranged at the bottom of the unloading component, the vortex fan is arranged inside the dust suction shell, the dust suction hood is arranged inside the dust removal box, and two dust suction pipes are also arranged on the rear side of the dust suction hood. The dust suction pipes pass through the dust removal box and are connected to the dust suction shell.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] Firstly, the present invention is provided with a first brush assembly, a second brush assembly, a third brush assembly and an electrostatic air gun. The first brush assembly removes dust from the left wall of the glue box, the second brush assembly removes dust from the right wall of the glue box, the third brush assembly removes dust from the front side wall, the rear side wall and the top of the glue box, and the electrostatic air gun removes dust from the interior of the glue box, thereby achieving dust removal without dead angles for the glue box and making the dust removal effect better.

[0014] Secondly, the two first brush rollers and the two second brush rollers can be lifted and lowered by the first cylinder and the second cylinder respectively, which will not hinder the rubber box from entering or leaving the dust removal box.

[0015] Thirdly, the conveyor belt in the present invention can be divided into three parts. The left part of the conveyor belt can be used to transfer the rubber box to the dust removal box. The middle part of the conveyor belt is arranged in the dust removal box. A forward component is also provided in the dust removal box. The forward component can cooperate with the middle part of the conveyor belt to clamp the rubber box to prevent the conveyor belt from being unable to transport the rubber box due to excessive friction between the rubber box and the dust removal components. The right side of the conveyor belt can be used to discharge the rubber box that has completed dust removal.

[0016] Fourthly, the present invention also provides a dust suction component, including a dust suction shell, a dust hood and a vortex fan. When the dust removal component removes dust from the rubber box, the dust on the rubber box will be brushed off, but the dust will float in the dust removal box. When the vortex fan is working, the dust removal hood can generate suction through the two dust removal pipes, and the dust floating in the dust removal box will be absorbed in real time to prevent the dust from flying out. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention from a first angle;

[0019] Figure 2 It is a structural schematic diagram of the second angle of the present invention;

[0020] Figure 3 A schematic diagram of the internal structure of the dust removal component of the present invention from a first angle;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the first brush assembly of the present invention;

[0022] Figure 5 A schematic diagram of the internal structure of the dust removal component of the present invention from a second angle;

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the pressing wheel of the present invention;

[0024] Figure 7 A schematic diagram of the internal structure of the dust removal component of the present invention from a third angle;

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the dust collecting component of the present invention.

[0026] Reference numerals:

[0027] Feeding component 1, dust removal component 2, unloading component 3, dust suction component 4, dust removal box 21, feed port 22, discharge port 23, first brush assembly 24, second brush assembly 25, third brush assembly 26, forward assembly 27, electrostatic air gun 28, first motor 29, first cylinder 210, first control board 211, first brush roller 212, second motor 213, second cylinder 214, second control board 215, second brush roller 216, third motor 217, top brush roller 218, front brush roller 219, rear brush roller 220, third bevel gear 221, forward motor 222, forward conveyor belt 223, pressure wheel 224, conveyor belt 31, conveying motor 32, dust suction shell 41, dust suction hood 42, vortex fan 43. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0030] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Combine the following Figures 1 to 8 As shown, an embodiment of the present invention provides a semi-automatic glue box dust removal machine, including a loading component 1, a dust removal component 2, a unloading component 3 and a dust suction component 4, the dust removal component 2 includes a dust removal box body 21, a feed port 22 is provided on the left side of the dust removal box body 21, and a discharge port 23 is provided on the right side of the dust removal box body 21, the loading component 1 is arranged on the left side of the dust removal component 2 and docked with the feed port 22, the loading component 1 is used to transport the glue box with dust removal into the dust removal component 2, the unloading component 3 is arranged on the right side of the dust removal component 2 and docked with the discharge port 23, the unloading component 3 is used to transport the glue box that has completed the dust removal operation, the dust suction component 4 is arranged at the bottom of the unloading component 3, and the output end of the dust suction component 4 is arranged in the dust removal component 2, the dust removal component 2 also includes a first brush assembly 24, a second brush assembly 25, a third brush assembly 26, a forward assembly 27 and an electrostatic air gun 28, the first brush assembly 24 is arranged on the left side of the dust removal box body 21 The first brush assembly 24 is used to brush away dust on the left side of the rubber box to be dusted, the second brush assembly 25 is arranged on the right side of the dust removal box 21, and the second brush assembly 25 is used to brush away dust on the right side of the rubber box to be dusted, the third brush assembly 26 is arranged in the middle of the dust removal box 21, and the third brush assembly 26 is used to brush away dust on the front, rear and top of the rubber box to be dusted, the forward assembly 27 is arranged on the inner top of the dust removal box 21, and the forward assembly 27 is used to help the rubber box move in the dust removal box 21 to prevent the first brush assembly 24, the second brush assembly 25 and the third brush assembly 26 from generating too much friction on the rubber box when dusting the rubber box, so that the unloading component 3 cannot move the rubber box, the electrostatic air gun 28 is arranged at the bottom of the dust removal box 21, and the electrostatic air gun 28 is fixedly connected to the dust removal box 21 by bolts, and the electrostatic air gun 28 is used to remove dust inside the rubber box with dust removal.

[0034] Preferably, the loading component 1 and the unloading component 3 include a conveyor belt 31, and the conveyor belt 31 is divided into three sections. The left part of the conveyor belt 31 is arranged in the loading component 1, and the left part of the conveyor belt 31 is used to transport the rubber box to be dusted into the dust removal box 21. The middle part of the conveyor belt 31 is arranged inside the dust removal box 21, and the middle part of the conveyor belt 31 can be used to cooperate with the forward component 27 to transfer the rubber box that has completed dust removal out of the dust removal box 21. The right part of the conveyor belt 31 is arranged in the unloading component 3, and the right part of the conveyor belt 31 is used to discharge the rubber box that has completed dust removal. A conveying motor 32 is provided on the right side of the unloading component 3, and the conveying motor 32 is used to provide power for the conveyor belt 31.

[0035] Preferably, the first brush assembly 24 includes a first motor 29, a first cylinder 210, a first control panel 211 and two first brush rollers 212, the two first brush rollers 212 are arranged on the top of the first control panel 211, the first motor 29 is arranged at the bottom of the first control panel 211, a first bevel gear is sleeved on the main shaft of the first motor 29, and a first bevel gear is also arranged at the bottom of the first brush roller 212 arranged at the rear side of the first control panel 211. When the first motor 29 is working, the first brush roller 212 can be driven to rotate by the meshing of the two first bevel gears. The first control panel 211 is also provided with a Four first gears, when the first brush roller 212 arranged on the rear side of the first control board 211 rotates, the four first gears can drive the first brush roller 212 arranged on the front side of the first control board 211 to rotate, so as to remove dust from the left side of the rubber box. The first cylinder 210 is arranged on the front side of the first control board 211, and the output end of the first cylinder 210 is fixedly connected to the first control board 211. When the first cylinder 210 is working, the two first brush rollers 212 can be driven by the first control board 211 to move downward, so as to prevent the two first brush rollers 212 from obstructing the rubber box from entering the dust removal box 21.

[0036] Preferably, the second brush assembly 25 includes a second motor 213, a second cylinder 214, a second control board 215 and two second brush rollers 216, the two second brush rollers 216 are arranged on the top of the second control board 215, the second motor 213 is arranged at the bottom of the second control board 215, a second bevel gear is sleeved on the main shaft of the second motor 213, and a second bevel gear is also arranged at the bottom of the second brush roller 216 arranged at the rear side of the second control board 215. When the second motor 213 is working, the second brush roller 216 can be driven to rotate by the meshing of the two second bevel gears. Four second gears are provided. When the second brush roller 216 arranged on the rear side of the second control board 215 rotates, the second brush roller 216 arranged on the front side of the second control board 215 can be driven to rotate by the four second gears, so as to remove dust from the left side of the rubber box. The second cylinder 214 is arranged on the front side of the second control board 215, and the output end of the second cylinder 214 is fixedly connected to the second control board 215. When the second cylinder 214 is working, the two second brush rollers 216 can be driven to move downward by the second control board 215 to prevent the two second brush rollers 216 from hindering the rubber box from leaving the dust removal box 21.

[0037] Preferably, the third brush assembly 26 includes a third motor 217, a top brush roller 218, a front brush roller 219 and a rear brush roller 220, the top brush roller 218 is arranged on the inner upper side of the dust removal box 21, and the front and rear sides of the top brush roller 218 are provided with a third bevel gear 221, the front brush roller 219 is arranged on the front side of the top brush roller 218, and the top of the front brush roller 219 is also provided with a third bevel gear 221, the front brush roller 219 and the top brush roller 218 are connected by two meshing third bevel gears 221, and the rear brush roller 220 is arranged on the top brush roller The rear side of the front brush roller 219 is provided with a third bevel gear 221 on the top of the rear brush roller 220. The rear brush roller 220 and the top brush roller 218 are also connected by two meshing third bevel gears 221. The third motor 217 is arranged at the bottom of the front brush roller 219, and the main shaft of the third motor 217 is fixedly connected to the front brush roller 219. When the third motor 217 is working, it can drive the front brush roller 219 to rotate. At this time, the top brush roller 218 and the rear brush roller 220 can be driven to rotate through the transmission connection of the four third bevel gears 221, so as to remove dust from the top and front and back sides of the rubber box.

[0038] Preferably, the forward component 27 includes a forward motor 222 and two forward conveyor belts 223, the two forward conveyor belts 223 are arranged on the inner top of the dust removal box 21, and a linkage shaft is provided on the left side of the two forward conveyor belts 223, and the linkage shaft can synchronize the movement of the two forward conveyor belts 223. The transmission motor is arranged on the inner top of the dust removal box 21, and the main shaft of the forward conveyor belt 223 is connected to the linkage shaft through a transmission belt. When the forward motor 222 is working, it can drive the two forward conveyor belts 223 to move at the same time. The advantage is that it can cooperate with the conveyor belt 31 to clamp the rubber box to prevent the friction between the rubber box and the dust removal component 2 from being too large, which will cause the conveyor belt 31 to fail to transport the rubber box.

[0039] Preferably, a pressure wheel 224 is further provided on the left side of the forward conveyor belt 223 , and the pressure wheel 224 can help the forward conveyor belt 223 to further press the rubber box, thereby increasing the friction between the rubber box and the conveyor belt 31 .

[0040] Preferably, the dust suction component 4 includes a dust suction shell 41, a dust hood 42 and a vortex fan 43, the dust suction shell 41 is arranged at the bottom of the unloading component 3, the vortex fan 43 is arranged inside the dust suction shell 41, the dust suction hood 42 is arranged inside the dust removal box 21, and two dust suction pipes are also provided on the rear side of the dust suction hood 42, the dust suction pipes penetrate the dust removal box 21 and are connected to the dust suction shell 41. When the dust removal component 2 dusts the rubber box, the dust on the rubber box will be brushed off, but the dust will float in the dust removal box 21. When the vortex fan 43 is working, the dust suction hood 42 can generate suction through the two dust removal pipes, and the dust floating in the dust removal box 21 can be adsorbed in real time to prevent the dust from flying out.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A semi-automatic glue box dust removal machine, characterized in that: The invention comprises a feeding component (1), a dust removal component (2), a feeding component (3) and a dust suction component (4), wherein the dust removal component (2) comprises a dust removal box (21), a feeding port (22) is provided on the left side of the dust removal box (21), and a discharge port (23) is provided on the right side of the dust removal box (21), the feeding component (1) is arranged on the left side of the dust removal component (2) and is connected to the feeding port (22), the feeding component (3) is arranged on the right side of the dust removal component (2) and is connected to the discharge port (23), the dust suction component (4) is arranged at the bottom of the feeding component (3), and the output end of the dust suction component (4) is arranged in the dust removal component (2), and the dust removal component (2 ) further comprises a first brush assembly (24), a second brush assembly (25), a third brush assembly (26), a forward assembly (27) and an electrostatic air gun (28), wherein the first brush assembly (24) is arranged on the left side of the dust removal box (21), the second brush assembly (25) is arranged on the right side of the dust removal box (21), the third brush assembly (26) is arranged in the middle of the dust removal box (21), the forward assembly (27) is arranged on the inner top of the dust removal box (21), the electrostatic air gun (28) is arranged at the bottom of the dust removal box (21), and the electrostatic air gun (28) is fixedly connected to the dust removal box (21) by bolts; The first brush assembly (24) comprises a first motor (29), a first cylinder (210), a first control panel (211) and two first brush rollers (212); the two first brush rollers (212) are arranged on the top of the first control panel (211); the first motor (29) is arranged on the bottom of the first control panel (211); a first bevel gear is sleeved on the main shaft of the first motor (29); a first bevel gear is also arranged on the bottom of the first brush roller (212) arranged on the rear side of the first control panel (211); four first gears are also arranged on the first control panel (211); the first cylinder (210) is arranged on the front side of the first control panel (211); and the output end of the first cylinder (210) is fixedly connected to the first control panel (211); The second brush assembly (25) comprises a second motor (213), a second cylinder (214), a second control panel (215) and two second brush rollers (216); the two second brush rollers (216) are arranged on the top of the second control panel (215); the second motor (213) is arranged on the bottom of the second control panel (215); a second bevel gear is sleeved on the main shaft of the second motor (213); a second bevel gear is also arranged on the bottom of the second brush roller (216) arranged on the rear side of the second control panel (215); four second gears are also arranged on the second control panel (215); the second cylinder (214) is arranged on the front side of the second control panel (215); and the output end of the second cylinder (214) is fixedly connected to the second control panel (215); The third brush assembly (26) comprises a third motor (217), a top brush roller (218), a front brush roller (219) and a rear brush roller (220); the top brush roller (218) is arranged on the upper inner side of the dust removal box (21); the front and rear sides of the top brush roller (218) are both provided with a third bevel gear (221); the front brush roller (219) is arranged on the front side of the top brush roller (218), and the top of the front brush roller (219) is also provided with a third bevel gear (221); the front brush roller (219) and the top brush roller (218) are both provided with a third bevel gear (221); The roller (218) is connected to the top brush roller (218) by means of two meshing third bevel gears (221); the rear brush roller (220) is arranged at the rear side of the top brush roller (218), and the top of the rear brush roller (220) is also provided with a third bevel gear (221); the rear brush roller (220) and the top brush roller (218) are also connected to each other by means of two meshing third bevel gears (221); the third motor (217) is arranged at the bottom of the front brush roller (219), and the main shaft of the third motor (217) is fixedly connected to the front brush roller (219); The forward assembly (27) comprises a forward motor (222) and two forward conveyor belts (223); the two forward conveyor belts (223) are arranged at the inner top of the dust removal box (21); a linkage shaft is provided on the left side of the two forward conveyor belts (223); the forward motor (222) is arranged at the inner top of the dust removal box (21); and the main shaft of the forward conveyor belt (223) is connected to the linkage shaft via a transmission belt.

2. A semi-automatic glue box dust removal machine according to claim 1, characterized in that: The loading component (1) and the unloading component (3) comprise a conveyor belt (31), wherein the conveyor belt (31) is divided into three sections, the left section of the conveyor belt (31) is arranged in the loading component (1), the middle section of the conveyor belt (31) is arranged inside the dust removal box (21), the right section of the conveyor belt (31) is arranged in the unloading component (3), and a conveying motor (32) is arranged on the right side of the unloading component (3).

3. A semi-automatic glue box dust removal machine according to claim 1, characterized in that: A pressure wheel (224) is also provided on the left side of the forward conveyor belt (223).

4. A semi-automatic glue box dust removal machine according to claim 1, characterized in that: The dust collection component (4) comprises a dust collection shell (41), a dust collection hood (42) and a vortex fan (43); the dust collection shell (41) is arranged at the bottom of the unloading component (3); the vortex fan (43) is arranged inside the dust collection shell (41); the dust collection hood (42) is arranged inside the dust removal box (21); and two dust collection pipes are further arranged on the rear side of the dust collection hood (42); the dust collection pipes penetrate the dust removal box (21) and are connected to the dust collection shell (41).

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