A linear bag breaking device for a construction waste bag opening machine

Abstract

The invention discloses a linear bag breaking device for a building waste bag opening machine. The linear bag breaking device includes a feed hopper and a plurality of roller cutter modules; a material guide plate is provided at the lower inner end of the body of the feed hopper, a feed cavity with open left and right sides is above the material guide plate, a tool cavity is below the material guide plate, one end of the mandrel of the roller cutter module is directly connected to a reduction motor through a coupling, a bearing seat is hinged in the middle of the mandrel, a plurality of circular blades are sleeved on the mandrel, the two sides of the circular blades are axially pressed and fixed by spacers of set lengths, and two circular nuts at the other end of the mandrel are pressed against the outer wall of the outermost spacer; in the downward direction of the garbage bag, the circular blades on the two adjacent roller cutter modules are staggered, a cutting slit with the same arrangement as the circular blades is provided on the material guide plate, and the upper end of the circular blade is higher than the cutting slit. The invention has good linear bag cutting effect, convenient disassembly of the circular blades, convenient installation and maintenance, and the effect of protecting the circular blades.

Description

Technical Field

[0001] The invention relates to the field of building waste bag opening devices, and in particular to a linear bag breaking device of a building waste bag opening machine. Background Art

[0002] In an era of increasing urbanization, cities are building a large number of new buildings and demolishing old and dilapidated buildings every day, which generates a large amount of construction waste. Construction waste occupies a large amount of land and affects the appearance of the city, so it needs to be handled in a timely manner. In order to facilitate handling and transportation, a lot of construction waste is loaded in packaging bags and transported by vehicles to waste collection areas for classification and crushing. Before the waste is handled, the garbage bags need to be quickly and efficiently destroyed, and then the garbage enters the sorting line;

[0003] Manual unpacking is slow, inefficient, and has a dirty working environment and poor safety, so automated unpacking machines have been developed. However, when using unpacking machines, firstly, the garbage bags are not cut completely, resulting in poor results, as the garbage is wrapped in the bags, making it impossible to further sort out light and soft materials. Secondly, the cutting blade is not convenient to replace and maintain; and it is easy for the cutting blade to cut into hard materials in the construction waste, damaging the cutting blade. Summary of the invention

[0004] In order to solve one or more of the above problems, the present invention provides a linear bag breaking device for a construction waste bag opening machine.

[0005] According to one aspect of the present invention, the linear bag breaking device of the construction waste bag opening machine includes a feed hopper and a plurality of roller cutter modules;

[0006] The feed hopper includes a first body with a hollow interior, a guide plate is provided at the lower end of the first body, a feed cavity with open left and right sides is above the guide plate, a tool cavity is below the guide plate, a wall plate on one side of the tool cavity is provided with avoidance holes, the number of avoidance holes is the same as that of roller cutter modules, and a base is vertically fixed to the wall plate under each avoidance hole.

[0007] The roller cutter module includes a core shaft and a plurality of circular blades. One end of the core shaft is directly connected to the reduction motor through a coupling, the middle of the core shaft is hinged with a bearing seat, and a plurality of circular blades are sleeved on the core shaft. The two sides of the circular blades are axially pressed and fixed by spacers of set lengths, and two round nuts at the other end of the core shaft are pressed against the outer wall of the outermost spacer.

[0008] A reference plate is provided at the lower end of the bearing seat, and the reduction motor is fixed on the reference plate. A connecting stud is threadedly connected to each of the four corners of the reference plate. Two adjusting nuts connected to the connecting studs are respectively attached to the two sides of the reference plate. The lower end of the connecting stud is connected to the base.

[0009] In the downward direction of the garbage bag, the circular blades on the two adjacent roller knife modules are arranged alternately, and the guide plate is provided with cutting slits arranged in the same manner as the circular blades, and the upper ends of the circular blades are higher than the cutting slits.

[0010] In some embodiments, the lower end of the connecting stud is fitted with a through hole of the base with a small gap, an elastic member is sleeved on each connecting stud, and two ends of the elastic member are respectively fitted with the adjustment nut and the base.

[0011] In some embodiments, the feed hopper and the guide plate are arranged to be tilted downward at the same angle.

[0012] The two ends of the guide plate and the lower wall plate of the feed hopper are welded and fixed by an end sealing plate.

[0013] In some embodiments, the tooth apex of the circular blade is mm above the cutting slit.

[0014] In some embodiments, the base includes an outer seat and an inner seat, which are respectively vertically connected to both sides of the wall panel at the lower end of each avoidance hole, and a right-angle reinforcement plate is also provided on the outer seat, the inner seat and the lower side of the wall panel.

[0015] In some embodiments, a dust removal chamber is provided on the outlet end of the feed hopper, a dust removal port is provided at the upper end of the dust removal chamber, and the dust removal port is connected to the dust removal system.

[0016] In some embodiments, a buffer member capable of radial elastic deformation is fixed to the core body of the mandrel, the outer diameter of the buffer member is the same as the inner diameter of the circular blade, and the inner hole of the buffer member is tightly fitted on the core body.

[0017] In some embodiments, a plurality of positioning ring grooves are provided on the core body, and the buffer member is fixed in the positioning ring groove; the buffer member is a rubber ring.

[0018] In some embodiments, the bearing seat includes a cylindrical second body and two end covers, a through axial hole is formed in the center of the second body, bearing slot holes are formed on both sides of the second body, a self-aligning bearing is fixed in each bearing slot hole, the end cover and the side surface of the second body are threadedly connected to form a bearing seat with a sealing structure, and the hinge section of the core shaft passes through the center hole of the end cover and is hinged to the self-aligning bearing.

[0019] In some embodiments, a positioning ring is further formed on the inner side of the end cover, the outer diameter of the positioning ring is the same as the inner diameter of the bearing slot, and the positioning ring enters the bearing slot to press and fit the self-aligning bearing.

[0020] A sealing groove is formed in the positioning ring, and a rotating seal is installed in the sealing groove.

[0021] In some embodiments, the bearing seat and the coupling are located in a protective cavity of the protective cover. The protective cover includes a cover body with an inverted U-shaped bending structure. The protective cavity is a cavity with an open lower end of the cover body. Both ends of the cover body are horizontally bent to form a lower flap, and the lower flap is threadedly connected to the reference plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of a linear bag breaking device of a building waste bag opening machine according to one embodiment of the present invention;

[0023] Figure 2 for Figure 1 A schematic top view of a linear bag breaking device of a building waste bag opening machine is shown;

[0024] Figure 3 for Figure 2 The A-A cross-sectional schematic diagram of a linear bag breaking device of a building waste bag opening machine is shown;

[0025] Figure 4 for Figure 1 A three-dimensional schematic diagram of the roller cutter module shown;

[0026] Figure 5 for Figure 4 A top view schematic diagram of the roller cutter module shown;

[0027] Figure 6 for Figure 5 The B-B cross-sectional view of the roller cutter module shown;

[0028] Figure 7 for Figure 6 A partial enlarged schematic diagram of the roller cutter module shown;

[0029] Feed hopper 01, first body 010, feed cavity 011, guide plate 012, tool cavity 013, avoidance hole 014, base 015, outer seat 0151, inner seat 0152, right-angle reinforcing plate 0153, cutting slit 016, elastic member 017, end sealing plate 018, dust removal chamber 019;

[0030] Roller cutter module 02, core shaft 1, extension section 11, hinged section 12, core body 13, positioning ring groove 131, threaded section 14, circular blade 2, bearing seat 3, second body 30, end cover 31, positioning ring 311, sealing groove 312, axial hole 32, bearing slot hole 33, self-aligning bearing 34, rotary seal 35, ear support plate 36, reference plate 37, connecting stud 38, adjusting nut 39; reduction motor 4, spacer 5, round nut 6, coupling 7, buffer 8, protective cover 9, protective cavity 91, lower flap 92. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below with reference to the accompanying drawings. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0032] Figures 1 to 7 A linear bag breaking device of a construction waste bag opening machine according to an embodiment of the present invention is schematically shown. As shown in the figure, the device includes a feed hopper 01 and a plurality of roller cutter modules 02;

[0033] The feed hopper 01 includes a first body 010 with a hollow interior. A material guide plate 012 is provided at the lower end of the first body 010. A feed cavity 011 with open left and right sides is located above the material guide plate 012. A tool cavity 013 is located below the material guide plate 012. A wall plate on one side of the tool cavity 013 is provided with avoidance holes 014. The number of avoidance holes 014 is the same as that of the roller cutter module 02. A base 015 is vertically fixed to the wall plate below each avoidance hole 014.

[0034] The roller cutter module 02 includes a core shaft 1 and a plurality of circular blades 2. One end of the core shaft 1 is directly connected to a reduction motor 4 through a coupling 7. A bearing seat 3 is hinged in the middle of the core shaft 1. A plurality of circular blades 2 are sleeved on the core shaft 1. The two sides of the circular blades 2 are axially pressed and fixed by spacers 5 of set lengths. Two round nuts 6 at the other end of the core shaft 1 are pressed against the outer wall of the outermost spacer 5.

[0035] A reference plate 37 is provided at the lower end of the bearing seat 3, and the reduction motor 4 is fixed on the reference plate 37. A connecting stud 38 is threadedly connected to each of the four corners of the reference plate 37. Two adjusting nuts 39 connected to the connecting stud 38 are respectively attached to the two sides of the reference plate 37. The lower end of the connecting stud 38 is connected to the base 015.

[0036] In the downward direction of the garbage bag, the circular blades 2 on two adjacent roller knife modules 02 are arranged alternately, and the guide plate 012 is provided with cutting slits 016 arranged in the same manner as the circular blades 2 , and the upper ends of the circular blades 2 are higher than the cutting slits 016 .

[0037] The device provides a novel linear bag breaking device, which adopts staggered circular blades 2 to greatly improve the cutting speed and effect of the packaging bag. All the materials are dispersed and enter the lower end. Moreover, the tool cavity 013 can effectively protect the roller knife module 02. The circular blade 2 is fixed on the core shaft 1 with spacers 5 of different lengths, and the outer end is fastened with a round nut 6, realizing the modular setting of various parts, connecting the studs 38 and the connecting adjustment nuts 39, so as to obtain the optimal cutting height conveniently. The beneficial effects are as follows: firstly, the straight-line bag cutting effect is good and the speed is fast, which provides a good foundation for subsequent sorting; secondly, the use of spacers 5 and round nuts 6 of different lengths can realize the clamping and fixing of the circular blade 2, with a simple structure and convenient installation and maintenance, and the roller cutter modules 2 with different settings only need to change the different lengths of the spacers 5, and the rest are modular parts, so as to obtain circular blades with various spacings, that is, to achieve the effect of staggered cutting; thirdly, the circular blade 2 is easy to disassemble and replace, and the maintenance is convenient, which is convenient for long-term stocking, reduces maintenance time, and improves equipment utilization rate; fourthly, when cutting, the circular blade 2 rotates to cut the bag when encountering light materials, and does not rotate when encountering hard materials, so as to avoid sudden impact by hard objects, and can effectively protect the circular blade 2.

[0038] Preferably, the lower end of the connecting stud 38 has a small gap to fit the through hole of the base 015, and the connecting stud 38 slides up and down along the base 015. An elastic member 017 is sleeved on each connecting stud 38, and the two ends of the elastic member 017 are respectively fitted with the adjustment nut 39 and the base 015; the elastic member 016 is a rubber spring or a compression spring. The beneficial effect is that the elastic member 017 can effectively buffer the impact force of the roller cutter module 02 encountering a hard object and protect the circular blade 2.

[0039] Preferably, the feed hopper 01 and the guide plate 012 are arranged to be tilted downward at the same angle, and the garbage bag moves downward along the guide plate 012 due to gravity inertia.

[0040] Preferably, the inclination angle of the guide plate 012 is 45°;

[0041] Preferably, the two ends of the guide plate 012 and the lower wall plate of the feed hopper 01 are welded and fixed by an end sealing plate 018. The beneficial effect is that the end sealing plate 018 can prevent foreign matter from entering the tool cavity 013 and protect the roller cutter module 02.

[0042] Preferably, the tooth vertex of the circular blade 2 is 5 mm higher than the cutting slit 016. The beneficial effect is that this height can achieve a good effect of cutting the packaging bag while preventing hard materials from damaging the blade.

[0043] Preferably, the base 015 includes an outer base 0151 and an inner base 0152, and the outer base 0151 and the inner base 0152 are respectively vertically connected to both sides of the wall panel at the lower end of each avoidance hole 014.

[0044] The outer seat 0151, the inner seat 0152 and the lower side of the wallboard are also provided with a right angle reinforcing plate 0153. Its beneficial effect is that the base 015 provided with this arrangement can provide good fixing performance, prevent the motor from shaking, and cause poor cutting of the blade or damage to the blade.

[0045] Preferably, a dust removal chamber 019 is provided at the outlet end of the feed hopper 01, and a dust removal port is provided at the upper end of the dust removal chamber 019, and the dust removal port is connected to the dust removal system. The beneficial effect is that the dust removal chamber 019 arranged at this position has a good dust removal effect.

[0046] Preferably, a buffer member 8 capable of radial elastic deformation is fixed on the core body 13 of the mandrel 1, the outer diameter of the buffer member 8 is the same as the inner diameter of the circular blade 2, and the inner hole of the buffer member 8 is tightly fitted on the core body 13.

[0047] The circular blade 2 sleeve is fitted on the outer wall of the buffer 8. When the circular blade 2 cuts a packaging bag or soft material, the center of the circular blade 2 and the core shaft 1 coincide. When the circular blade 2 cuts a hard material, the circular blade 2 squeezes the outer wall of the buffer 8, and the buffer 8 deforms radially. The circular blade 2 is eccentric relative to the core shaft 1, and the circular blade 2 is eccentric so as to be separated from the hard material. The beneficial effect is that the buffer 8 can effectively protect the circular blade 2. When encountering a hard object, the circular blade 2 is eccentric and separated from the hard object, protecting the circular blade 2.

[0048] Preferably, the core 13 is provided with a plurality of positioning ring grooves 131, and the buffer 8 is fixed in the positioning ring grooves 131; the buffer 8 is a rubber ring. The beneficial effect is that the positioning ring grooves 131 can further improve the installation accuracy of the buffer 8 and ensure good buffering performance.

[0049] Preferably, the axial direction of the core shaft 1 sequentially forms an extension section 11, an articulated section 12, a core body 13 and a threaded section 14, the extension section 11 is directly connected to the reduction motor 4 through a coupling 7, the threaded section 14 is threadedly connected to two round nuts 6, and the articulated section 12 is rotatably connected to the bearing seat 3.

[0050] Several circular blades 2 are sleeved on the core 13, and the two sides of the circular blades 2 are respectively fitted and fixed axially by spacers 5 of set lengths, the round nut 6 fits the outer wall of the outermost spacer 5, and the bearing seat 3 fits the inner wall of the innermost spacer 5.

[0051] Among them, the inner hole of the spacer 5 is larger than the outer diameter of the core 10, the cross-sections of several spacers 5 are the same, the length of the middle spacer 5 is equal to the distance between two adjacent circular blades 2, the length of the inner spacer 5 is equal to the distance between the bearing seat 3 and the adjacent circular blade 2, and the length of the outer spacer 5 is equal to the distance between the round nut 6 and the adjacent circular blade 2.

[0052] Preferably, the bearing seat 3 comprises a cylindrical second body 30 and two end covers 31, a through axial hole 32 is formed in the center of the second body 30, bearing slots 33 are formed on both sides of the second body 30, a self-aligning bearing 34 is fixed in each bearing slot 33, the end covers 31 and the side surfaces of the second body 30 are threadedly connected to form a bearing seat 3 with a sealing structure, and the hinge section 12 of the mandrel 1 passes through the center hole of the end covers 31 and is hinged to the self-aligning bearing 34. The beneficial effect is that the bearing seat 3 provided with this arrangement can provide good support, good rotation effect, and long-term use.

[0053] Preferably, a positioning ring 311 is formed on the inner side of the end cover 31, and the outer diameter of the positioning ring 311 is the same as the inner diameter of the bearing slot 33. The positioning ring 311 enters the bearing slot 33 to press and fit the self-aligning bearing 34. The beneficial effect is that the positioning ring 311 can improve the installation accuracy of the bearing and prevent the bearing from idling or side slipping.

[0054] A sealing groove 312 is formed in the positioning ring 311, and a rotary seal 35 is installed in the sealing groove 312. The inner hole of the rotary seal 35 fits the circumferential wall of the hinge section 12. The beneficial effect is that the rotary seal 35 can prevent dust from entering, protect the bearing, and can be used safely for a long time.

[0055] Preferably, two ear support plates 36 extending downward are provided at the lower end of the circumferential wall of the second body 30, and the lower ends of the ear support plates 36 are vertically connected to the reference plate 37.

[0056] The arc end of the ear support plate 36 and the circumferential wall of the second body 30, the lower end of the ear support plate 36 and the reference plate 37 are fixed to form a whole by welding. The beneficial effect is that the arrangement can improve the installation accuracy of the bearing seat 3.

[0057] Preferably, the bearing seat 3 and the coupling 7 are located in the protection cavity 91 of the protection cover 9, and the protection cover 9 includes a cover body 90 of an inverted U-shaped bending structure, and the protection cavity 91 is a cavity with an open lower end of the cover body 90, and both ends of the cover body 90 are horizontally bent to form a lower flap 92, and the lower flap 92 is threadedly connected to the reference plate 37. The beneficial effect is that the protection cover 9 can protect valuable components such as the coupling 7 and the bearing seat 3.

[0058] Preferably, the spacer 5 is a round tube that is cold cut and then turned on both sides to a set length. The beneficial effect is that the spacer 5 can be easily processed and has high precision.

[0059] Preferably, the circular blade 2 is a hard alloy blade, and the coupling 7 is a flange coupling or an elastic coupling. The beneficial effects are: the hard alloy blade has high cutting performance and long service life.

[0060] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A linear bag breaking device for a building waste bag opening machine, characterized in that: It includes a feed hopper and several roller cutter modules; The feed hopper includes a first body with a hollow interior, a guide plate is provided at the lower end of the first body, a feed cavity with open left and right sides is above the guide plate, a tool cavity is below the guide plate, a wall plate on one side of the tool cavity is provided with avoidance holes, the number of avoidance holes is the same as that of roller cutter modules, and a base is vertically fixed to the wall plate under each avoidance hole. The roller cutter module includes a core shaft and a plurality of circular blades. One end of the core shaft is directly connected to the reduction motor through a coupling, the middle of the core shaft is hinged with a bearing seat, and a plurality of circular blades are sleeved on the core shaft. The two sides of the circular blades are axially pressed and fixed by spacers of set lengths, and two round nuts at the other end of the core shaft are pressed against the outer wall of the outermost spacer. A reference plate is provided at the lower end of the bearing seat, and the reduction motor is fixed on the reference plate. A connecting stud is threadedly connected to each of the four corners of the reference plate. Two adjusting nuts connected to the connecting studs are respectively attached to the two sides of the reference plate. The lower end of the connecting stud is connected to the base. In the downward direction of the garbage bag, the circular blades on the two adjacent roller cutter modules are arranged alternately, and the guide plate is provided with cutting slits arranged in the same manner as the circular blades, and the upper ends of the circular blades are higher than the cutting slits; The lower end of the connecting stud is fitted with a through hole of the base with a small gap, and an elastic member is sleeved on each connecting stud, and the two ends of the elastic member are respectively fitted with the adjustment nut and the base; The feed hopper and the guide plate are arranged downwardly at the same angle, and the two ends of the guide plate and the lower wall plate of the feed hopper are welded and fixed by an end sealing plate; The tooth vertex of the circular blade is 5mm higher than the cutting gap; The base includes an outer base and an inner base, which are respectively vertically connected to the two sides of the wall panels at the lower end of each avoidance hole, and the outer base, the inner base and the lower side of the wall panels are also provided with right-angle reinforcement plates; A buffer member capable of radial elastic deformation is fixed on the core body of the mandrel, the outer diameter of the buffer member is the same as the inner diameter of the circular blade, and the inner hole of the buffer member is tightly fitted on the core body; The core body is provided with a plurality of positioning ring grooves, and the buffer is fixed in the positioning ring grooves; the buffer is a rubber ring; The bearing seat comprises a cylindrical second body and two end covers, a through axial hole is formed in the center of the second body, bearing slots are formed on both sides of the second body, a self-aligning bearing is fixed in each bearing slot, the end cover is threadedly connected to the side surface of the second body, thereby forming a bearing seat with a sealing structure, and the hinge section of the core shaft passes through the center hole of the end cover and is hinged to the self-aligning bearing; A positioning ring is also formed on the inner side of the end cover. The outer diameter of the positioning ring is the same as the inner diameter of the bearing slot. The positioning ring enters the bearing slot to press and fit the self-aligning bearing. A sealing groove is formed in the positioning ring, and a rotating seal is installed in the sealing groove.

2. The linear bag breaking device of the construction waste bag opening machine according to claim 1 is characterized in that: A dust removal chamber is arranged on the outlet end of the feed hopper, a dust removal port is arranged on the upper end of the dust removal chamber, and the dust removal port is connected to the dust removal system.

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