Three-roller type garbage bag breaking device

Abstract

The invention relates to the technical field of garbage recycling, in particular to a three-roller type garbage bag breaking device which comprises a frame and a bag breaking roller assembly which comprises bag breaking roller pieces rotationally arranged in the frame. The bag pressing roller assembly comprises bag pressing roller pieces rotationally arranged in the frame. The bag hooking roller assembly comprises a bag hooking roller piece rotationally arranged in the frame, and the rotating direction of the bag hooking roller piece is opposite to the rotating direction of the bag breaking roller piece and the rotating direction of the bag pressing roller piece. In the vertical direction, the bag breaking roller piece, the bag hooking roller piece and the bag pressing roller piece are sequentially arranged from bottom to top, the projections of the bag hooking roller piece, the bag breaking roller piece and the bag pressing roller piece in the plane where the bag hooking roller piece is located have overlapped parts, and the bag pressing roller piece and the bag hooking roller piece are matched with each other to convey bagged garbage towards the bag breaking roller piece. The bag pressing roller piece, the bag breaking roller piece and the bag hooking roller piece are matched with one another, bagged garbage is reliably broken and dismantled, and a garbage bag is separated from the garbage through the designed novel structure.

Description

Technical Field

[0001] The present application relates to the technical field of garbage recycling, and in particular to a three-roller garbage bag breaking device. Background Art

[0002] The problem of urban waste disposal has become a major research topic in the field of environmental protection in the world today. With the increase of urban population and the improvement of people's living standards, the technical requirements for the sorting and treatment of domestic waste are becoming higher and higher.

[0003] In the process of garbage sorting, in most cases, in order to increase the speed of garbage disposal, garbage bags are often crushed together with the garbage. However, due to the certain toughness of garbage bags, they are easily stretched and entangled on the cutter and the rotating shaft when the garbage is crushed, resulting in damage to the garbage crushing device, reducing the garbage disposal efficiency and making the maintenance and repair costs of the garbage disposal device higher. Summary of the invention

[0004] Technical Problems that the Present Invention is to Solve One of the problems in the background technology.

[0005] To this end, the present invention provides a three-roller garbage bag breaking device.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A three-roller garbage bag breaking device, comprising:

[0008] framework, and

[0009] A bag breaking roller assembly, wherein the bag breaking roller assembly is rotatably arranged in the frame, and a bag breaking roller sheet is fixedly arranged on the bag breaking roller assembly;

[0010] A bag pressing roller assembly, wherein the bag pressing roller assembly is rotatably arranged in the frame, and a bag pressing roller sheet is fixedly arranged on the bag pressing roller assembly;

[0011] A bag hook roller assembly, wherein the bag hook roller assembly is rotatably arranged in the frame, and a bag hook roller sheet is fixedly arranged on the bag hook roller assembly, and the rotation direction of the bag hook roller sheet is opposite to the rotation direction of the bag breaking roller sheet and the bag pressing roller sheet;

[0012] Among them, along the vertical direction, the rotation axis of the bag breaking roller is located below the rotation axis of the bag pressing roller, and the bag hook roller is located between the bag breaking roller and the bag pressing roller. In the horizontal direction, the bag hook roller is located on the same side of the bag breaking roller and the bag pressing roller. The bag hook roller and the bag breaking roller are arranged alternately, and the projections of the bag hook roller, the bag breaking roller and the bag pressing roller in the plane where the bag hook roller is located all have overlapping parts. The bag pressing roller and the bag hook roller cooperate with each other to transport the bagged garbage toward the bag breaking roller.

[0013] Furthermore, the bag breaking roller, bag pressing roller and bag hooking roller are rotatably connected in the frame through three mutually parallel driving shafts respectively, and each driving shaft is provided with multiple rollers along its axial direction, and the bag hooking roller is located in the middle of two adjacent bag breaking rollers.

[0014] Furthermore, the rotational speeds of the bag pressing roller and the bag hooking roller are the same, and the rotational speed of the bag breaking roller is twice that of the bag pressing roller.

[0015] Furthermore, a first gear is coaxially connected to the end of the driving main shaft connected to the bag pressing roller, a second gear is coaxially connected to the end of the driving main shaft connected to the bag breaking roller, and a third gear A and a third gear B are coaxially connected to the end of the driving main shaft connected to the bag hooking roller, the first gear is meshed with the third gear A, the first gear and the third gear A have the same pitch circle diameter and number of teeth, the second gear and the third gear B are meshed with each other, and the number of teeth of the third gear B is twice that of the second gear.

[0016] Furthermore, the bag pressing roller is configured as a regular polygon, and a plurality of bag pressing portions are provided on the bag pressing roller along its circumference.

[0017] Furthermore, a plurality of hook pocket surfaces and limiting surfaces are arranged on the hook pocket roller along its circumference, and the hook pocket surfaces and limiting surfaces are arranged alternately, and the hook pocket surfaces and limiting surfaces are both inclined in a direction opposite to the rotation direction of the hook pocket roller. As the hook pocket roller rotates, the hook pocket surfaces rotate in the same direction as the hook pocket roller, and the limiting surfaces rotate in a direction opposite to the hook pocket roller.

[0018] Furthermore, an avoidance surface is formed between the limiting surface and the outer side wall of the hook bag roller, and the avoidance surface is a straight surface or a curved surface protruding toward the outer side of the hook bag roller.

[0019] Furthermore, a bag hook roller combing plate is installed in the frame, and the bag hook roller combing plate is located on the side of the bag hook roller away from the bag breaking roller, and the bag hook roller combing plate is used to remove the garbage bag on the bag hook roller.

[0020] Furthermore, a bag hook roller combing plate is installed in the frame, and the bag hook roller combing plate is located on the side of the bag hook roller away from the bag breaking roller, and the bag hook roller combing plate is used to remove the garbage bag on the bag hook roller.

[0021] Furthermore, a plurality of combing grooves are arranged on the hook bag roller combing plate along the axial direction of the driving main shaft, and the combing grooves are opposite to the hook bag roller sheet. When the hook bag roller sheet rotates and passes through the combing grooves, the hook bag roller combing plate peels off the garbage bag on the hook bag roller sheet.

[0022] Furthermore, in the vertical direction, the hook bag roller comb plate is located above the horizontal plane where the axis of the hook bag roller sheet is located. When the hook bag surface passes through the hook bag roller comb plate and the avoidance surface is tangent to the upper surface of the hook bag roller comb plate, the angle α between the plane where the hook bag roller comb plate is located and the hook bag surface is 60° to 120°.

[0023] Furthermore, the bag breaking roller, the bag pressing roller and the bag hooking roller are all detachably connected to the driving main shaft.

[0024] Furthermore, the ends of the driving main shaft are respectively connected to the roller tail shaft and the roller head transition shaft, the driving main shaft is coaxially sleeved with a plurality of sleeves arranged along its axial direction, the roller sheet is clamped between adjacent sleeves, and the plurality of sleeves are clamped between the roller tail shaft and the roller head transition shaft.

[0025] Furthermore, a plurality of flat keys are provided on the outer wall of the driving main shaft for sliding along its axial direction, and the number of flat keys on each driving main shaft is respectively the same as the number of bag hooking rollers, bag breaking rollers and bag pressing rollers, the flat keys are connected to the inner wall of the rollers, the shaft sleeves and the flat keys are spaced apart, and the shaft sleeves are provided with key slots for the flat keys to be inserted.

[0026] The beneficial effect of the present invention is that the present application uses a three-roller structure, through the cooperation between the bag pressing roller, the bag breaking roller and the bag hooking roller, to reliably break the bagged garbage, and separate the garbage bag from the garbage through the designed new structure. In order to achieve the above purpose, the designed mechanical structure is driven by only one motor, and the motion is transmitted to multiple rollers according to a specific relationship. The structure is simple, reliable and efficient; the design fully considers the relevant precision realization issues of processing and manufacturing, and can minimize the processing cost while ensuring the accuracy and working performance of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1 It is a structural schematic diagram of a three-roller garbage bag breaking device in the present invention.

[0029] Figure 2 It is a structural schematic diagram of the power component in the present invention.

[0030] Figure 3 It is a schematic diagram of the positional relationship among the bag breaking roller assembly, the bag pressing roller assembly and the hook belt roller assembly in the present invention.

[0031] Figure 4 It is a schematic diagram of the movement relationship between the bag pressing roller, the bag hooking roller and the bag breaking roller in the present invention.

[0032] Figure 5 It is a structural schematic diagram of the bag pressing roller assembly in the present invention.

[0033] Figure 6 It is a structural schematic diagram of the bag pressing roller in the present invention.

[0034] Figure 7 It is a structural schematic diagram of the hook bag roller assembly in the present invention.

[0035] Figure 8 It is a structural schematic diagram of the hook bag roller sheet in the present invention.

[0036] Fig. 9 It is a structural schematic diagram of the bag breaking roller assembly in the present invention.

[0037] Fig.10 It is a structural schematic diagram of the drive shaft assembly in the present invention.

[0038] Fig.11 It is a structural schematic diagram of the hook bag roller comb plate in the present invention.

[0039] Fig.12 It is a schematic diagram of the positional relationship between the hook bag roller comb plate and the hook bag roller sheet in the present invention.

[0040] In the figure: 1, frame; 11, front mounting plate; 12, rear mounting plate; 13, side plate; 14, bottom plate; 15, partition; 16, garbage outlet; 17, bag outlet; 2, bag breaking roller assembly; 21, bag breaking roller sheet; 3, bag hooking roller assembly; 31, bag hooking roller sheet; 32, bag hooking groove; 33, bag hooking surface; 34, pressing groove; 35, limiting surface; 4, bag pressing roller assembly; 41, bag pressing roller sheet; 42, bag pressing part; 43, groove; 5, power assembly; 51, driving source; 52, first gear; 53, second gear; 54, third gear A; 55. The third gear B; 6. The feed hopper; 7. The drive shaft assembly; 71. The drive spindle; 711. The receiving groove; 712. The flat key; 72. The roller tail shaft; 721. The boss; 722. The support shaft; 73. The roller head transition shaft; 731. The baffle; 732. The socket; 74. The bushing; 741. The keyway; 742. The protrusion; 743. The pressing surface; 75. The tail support; 76. The drive shaft; 77. The sealing ring; 78. The felt ring; 79. The drive housing; 8. The hook bag roller comb plate; 81. The mounting plate; 82. The reinforcing rib; 83. The comb groove. DETAILED DESCRIPTION

[0041] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying 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 or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0043] 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.

[0044] Reference Figure 1-12 A three-roller garbage bag breaking device comprises a frame 1, a bag breaking roller assembly 2, a bag hooking roller assembly 3, a bag pressing roller assembly 4, a power assembly 5 and a feed hopper 6. The frame 1 is connected with a front mounting plate 11, a rear mounting plate 12, a side plate 13 and a bottom plate 14. The front mounting plate 11, the rear mounting plate 12 and the two side plates 13 are all arranged vertically, the two side plates 13 are arranged oppositely, the front mounting plate 11 and the rear mounting plate 12 are arranged oppositely, the bottom plate 14 is fixedly mounted on the bottom of the frame 1, a garbage outlet 16 and a bag outlet 17 are arranged on the bottom plate 14, and the feed hopper 6 is fixedly connected to the top of the frame 1.

[0045] It should be noted that the frame 1 is welded from square hollow steel, and is connected to a flange plate for installing a front mounting plate 11 and a rear mounting plate 12. The bottom plate 14, the flange plate, and the side plate 13 are all welded to the frame 1, and their positions can be adjusted and the plate structure can be replaced.

[0046] The bag breaking roller assembly 2, the bag hooking roller assembly 3, and the bag pressing roller assembly 4 are all arranged in the frame 1. In the vertical direction, from bottom to top, the bag breaking roller assembly 2, the bag hooking roller assembly 3, and the bag pressing roller assembly 4 are arranged in sequence, and in the horizontal direction, the bag breaking roller assembly 2 and the bag pressing roller assembly 4 are arranged near the garbage outlet 16, and the bag hooking roller assembly 3 is arranged near the bag outlet 17. A vertically arranged partition 15 is connected to the bottom plate 14, and the partition 15 is located in the frame 1, and the partition 15 is located between the garbage outlet 16 and the bag outlet 17.

[0047] The bag breaking roller assembly 2 includes a drive shaft assembly 7 and multiple bag breaking roller sheets 21, the bag hooking roller assembly 3 includes a drive shaft assembly 7 and multiple bag hooking roller sheets 31, and the bag pressing roller assembly 4 includes a drive shaft assembly 7 and multiple bag pressing roller sheets 41. The drive shaft assembly 7 includes a drive main shaft 71. The axes of the three drive main shafts 71 are parallel to each other and are all arranged in the horizontal direction. One end of the drive main shaft 71 is rotatably connected to the front mounting plate 11, and the other end is rotatably connected to the rear mounting plate 12. The bag hooking roller sheet 31, the bag pressing roller sheet 41, and the bag breaking roller sheet 21 are all arranged in a ring shape. The multiple bag breaking roller sheets 21 are arranged at intervals along the axial direction of the drive main shaft 71 in the bag breaking roller assembly 2, the multiple bag hooking roller sheets 31 are arranged at intervals along the axial direction of the drive main shaft 71 in the bag hooking roller assembly 3, and the multiple bag pressing roller sheets 41 are arranged at intervals along the axial direction of the drive main shaft 71 in the bag pressing roller assembly 4.

[0048] It should be noted that the rotation direction of the driving shaft 71 in the bag hook roller assembly 3 is opposite to the transmission direction of the driving shaft 71 in the bag breaking roller assembly 2 and the bag pressing roller 41. In the present application, the rotation direction of the driving shaft 71 in the bag hook roller assembly 3 is clockwise.

[0049] It should be noted that the driving main shaft 71 in the bag breaking roller assembly 2 is located directly below the driving main shaft 71 in the bag pressing roller assembly 4, and a bag breaking roller 21 is located directly below a bag pressing roller 41. In the horizontal direction, the driving main shaft 71 in the bag hooking roller assembly 3 is located on the side of the other two driving main shafts 71 close to the bag outlet 17, and the bag hooking roller 31 is located in the middle of the two adjacent bag pressing rollers 41. Along the axial direction of the driving main shaft 71, the bag hooking roller 31 is alternately arranged with the bag pressing roller 41 and the bag breaking roller 21. The difference between the inner and outer diameters of the bag hooking roller 31 is H. Along the radial direction of the bag hooking roller 31, the overlapping length h between the bag hooking roller 31 and the circumscribed circle of the bag pressing roller 41 and the bag breaking roller 21 is 0.8H to 0.95H.

[0050] Specifically, the bag pressing roller 41 is set to be a regular polygon, each corner of the regular polygon is a bag pressing part 42, and a plurality of grooves 43 are arranged on each side of the bag pressing roller 41 along the length direction of the side, and the grooves 43 penetrate the bag pressing roller 41 along the thickness direction of the bag pressing roller 41, and the width a of the grooves 43 is 1 / 10 to 1 / 9 of the length A of the side wall of the bag pressing roller 41.

[0051] Since the bag pressing roller 41 is a polygon, the straight-line distance between the right-angled side of the bag pressing roller 41 and other rollers is larger than the straight-line distance between the bag pressing part 42 and other rollers, so that a storage space is formed between the right-angled side of the bag pressing roller 41 and other rollers. As the roller body rotates, the bagged garbage moves toward other rollers through the storage space, and the bag pressing part 42 squeezes and pushes the bagged garbage toward other rollers. If the number of bag pressing parts 42 on the bag pressing roller 41 is small, such as when the bag pressing roller 41 is an equilateral triangle or a regular quadrilateral, the volume of the storage space is large, but the distance between adjacent bag pressing parts 42 is long, the bag pressing efficiency is low, and the bagged garbage is easy to accumulate in the storage space; when the number of bag pressing parts 42 on the bag pressing roller 41 is large, such as when the bag pressing roller 41 is a regular decagon, the volume of the storage space is small, so that large bags of garbage are difficult to transport forward. Therefore, preferably, in the present application, the bag pressing roller 41 is a regular hexagon, and there are six bag pressing parts 42 on each bag pressing roller 41.

[0052] The hook bag roller 31 is a circular roller, and the outer edge of the hook bag roller 31 is provided with a plurality of hook bag grooves 32 along its circumference, which helps to evenly distribute force during rotation, thereby reducing wear and maintaining continuous operation of the hook bag. The hook bag groove 32 is a V-shaped groove inclined in the direction opposite to the rotation direction of the driving spindle 71 in the hook belt roller assembly, which helps to improve the hook bag groove 32 The ability and stability of the garbage bag gripping ability and stability of the garbage bag, the two side walls in the hook bag groove 32 are respectively a hook bag surface 33 and a limiting surface 35, and a pressing groove 34 is provided on the hook bag surface 33. The limiting surface 35 is a straight surface. The two side walls in the hook bag groove 32 are both inclined in the direction opposite to the rotation direction of the driving spindle 71 in the hook belt roller assembly. The angle M between the limiting surface 35 and the diameter of the hook bag roller 31 is 22°, and the angle N between the hook bag surface 33 and the diameter of the hook bag roller 31 is 43°. In the hook bag roller assembly 3, as the driving spindle 71 rotates, the hook bag surface 33 rotates in the same direction as the driving spindle 71.

[0053] An avoidance surface is formed between the limiting surface 35 and the outer wall of the hook bag roller 31, that is, in the hook bag groove 32, at the notch close to the limiting surface 35. The avoidance surface is a straight surface or a curved surface protruding toward the outside of the hook bag roller 31. When the avoidance surface is a curved surface, the arc radius R of the avoidance surface is 3mm. If the avoidance surface radius is large, the transition between the limiting surface 35 and the outer edge of the hook bag roller 31 will be smoother, and the probability of the garbage bag falling off after being hooked will increase. If the avoidance surface radius is small, the transition between the limiting surface 35 and the outer edge of the hook bag roller 31 will be steep. As the roller rotates, the garbage bag is pulled, and the garbage bag is easily directly hooked and broken by the hook bag roller 31, so that the hook bag roller 31 falls directly to the garbage outlet.

[0054] The bag breaking roller 21 is a circular roller, and the outer side wall of the bag breaking roller 21 is configured to be serrated.

[0055] The drive shaft assembly 7 also includes a roller tail shaft 72, a roller head transition shaft 73, a sleeve 74, a tail support 75, a drive shaft 76, a sealing ring 77, and a felt ring 78. The drive main shaft 71 is hollow, and the roller tail shaft 72 and the roller head transition shaft 73 are coaxially arranged at both ends of the drive main shaft 71, respectively. The roller tail shaft 72 is provided with a boss 721, and the boss 721 is inserted at the end of the drive main shaft 71. The roller tail shaft 72 is fixedly connected to the drive main shaft 71 by bolts, and a support shaft 722 is coaxially arranged at one end of the roller tail shaft 72 away from the drive main shaft 71. The support shaft 722 passes through the tail support 75 and is rotatably connected to the tail support 75. The tail support 75 is installed on the front mounting plate 11 by bolts and flanges.

[0056] A baffle 731 is connected to the roller head transition shaft 73, and the roller head transition shaft 73 is coaxially inserted at the end of the driving main shaft 71. The baffle 731 is fixedly connected to the end face of the driving main shaft 71 by bolts. A socket 732 for inserting the driving shaft 76 is coaxially arranged on the roller head transition shaft 73, and one end of the driving shaft 76 is inserted in the socket 732. The cross-section of the end of the driving shaft 76 inserted in the socket 732 and the cross-section of the socket 732 are irregular, preferably a regular polygon.

[0057] A drive housing 79 is mounted on the rear mounting plate 12. The drive shaft 76 penetrates the drive housing 79 and is rotatably connected to the drive housing 79 through a plurality of bearings. The plurality of bearings are arranged along the axial direction of the drive shaft 76. In this embodiment, two bearings are arranged. A sealing ring 77 and a felt ring 78 are arranged on the side of the bearings away from each other. The sealing ring 77 is arranged on the side of the felt ring 78 close to the bearing. The felt ring 78 can effectively prevent external dust from entering and affecting the bearing, causing the drive shaft 76 to rotate and jam.

[0058] The outer wall of the driving main shaft 71 is provided with a receiving groove 711 along its axial direction, and a plurality of flat keys 712 are provided on the driving main shaft 71 along its axial direction. The flat keys 712 are located in the receiving groove 711, and the flat keys 712 protrude from the notches of the receiving groove 711. The number of flat keys 712 on each driving main shaft 71 is the same as the number of the hook bag roller sheet 31, the bag breaking roller sheet 21, and the bag pressing roller sheet 41. The flat keys 712 are connected to the inner side walls of the roller sheets, and a plurality of shaft sleeves 74 are coaxially sleeved on On the driving main shaft 71, the shaft sleeve 74 and the flat key 712 are arranged at intervals, and the shaft sleeve 74 is provided with a keyway 741 for the flat key 712 to be inserted. On one driving main shaft 71, the number of shaft sleeves 74 is one more than the number of flat keys 712, so that multiple shaft sleeves 74 fix the flat key 712 on the driving main shaft 71, and two shaft sleeves 74 that are far away from each other among the multiple shaft sleeves 74 respectively abut against the roller tail shaft 72 and the roller head transition shaft 73, so as to fix the roller piece on the driving main shaft 71. The outer side wall of the shaft sleeve 74 is also provided with a protrusion 742, and multiple protrusions 742 are arranged along the axial direction of the shaft sleeve 74, and multiple protrusions 742 are arranged along the axial direction of the shaft sleeve 74. A pressing surface 743 is provided on the side wall opposite to the rotation direction of the roller piece, and the pressing surface 743 is inclined toward the center of the protrusion 742.

[0059] The transmission assembly includes a driving source 51, a first gear 52, a second gear 53, a third gear A54, and a third gear B55. The first gear 52, the second gear 53, and the third gear are coaxially sleeved on the end of the driving shaft 76 away from the driving main shaft 71 in the bag pressing roller assembly 4, the bag breaking roller assembly 2, and the bag hooking roller assembly 3, respectively. The third gear A54 and the third gear B55 are coaxially connected to the driving shaft 76 in sequence along the axial direction of the driving shaft 76. The first gear 52 is meshed with the third gear A54. The first gear 52 and the third gear A54 have the same pitch circle diameter and number of teeth. The number of teeth of the third gear A54 is smaller than the diameter of the third gear B55. The second gear 53 and the third gear B55 are meshed with each other. The number of teeth of the third gear B55 is twice that of the second gear 53. The rotation speed of the bag breaking roller 21 is twice the rotation speed of the bag pressing roller 41 and the bag hooking roller 31.

[0060] The driving source 51 is installed on the base plate 14 , and the output end of the driving source 51 is directly coaxially connected to one of the three driving shafts 76 through a coupling. In this embodiment, the output end of the driving source 51 is connected to the driving shaft 76 in the bag breaking roller assembly 2 .

[0061] A hook bag roller comb plate 8 is also installed in the frame 1. The hook bag roller comb plate 8 is obliquely installed on the side plate 13. The hook bag roller comb plate 8 is located on the side of the hook bag roller assembly 3 away from the bag breaking roller assembly 2. The hook bag roller comb plate 8 is connected to a mounting plate 81 for mounting the hook bag roller comb plate 8 and a reinforcing rib 82 for reinforcing the hook bag roller comb plate 8. The reinforcing rib 82 and the mounting plate 81 are both located between the hook bag roller comb plate 8 and the side plate 13.

[0062] The hook bag roller comb plate 8 is provided with a plurality of combing grooves 83, which are arranged along the axial direction of the driving main shaft 71, and the combing grooves 83 are opposite to the hook bag roller sheet 31, and the combing grooves 83 make way for the hook bag roller sheet 31. When the hook bag roller sheet 31 rotates, it passes through the combing grooves 83. In order to facilitate the removal of the garbage bag on the hook bag roller sheet 31, when the hook bag surface 33 passes through the hook bag roller comb plate 8, the avoidance surface is tangent to the upper surface of the hook bag roller comb plate 8, and the angle α between the plane where the hook bag roller comb plate 8 is located and the hook bag surface 33 is 60° to 120°. The width of the combing groove 83 is slightly larger than the thickness of the hook bag roller sheet 31, and a clearance fit is formed between the two.

[0063] The implementation principle of this application is:

[0064] Bag-loaded garbage is put into the frame 1 from the feed hopper 6, and the bag pressing roller 41 squeezes the bag-loaded garbage toward the bag hooking roller 31 and the bag breaking roller 21. Since the bag breaking roller 41 is arranged in a hexagonal shape, the straight-line distance between the straight edge of the bag pressing roller 41 and the bag hooking roller 31 and the bag breaking roller 21 is larger than the straight-line distance between the bag pressing part 42 and the bag hooking roller 31 and the bag breaking roller 21. An accommodating space is formed between the straight edge of the bag pressing roller 41 and the bag hooking roller 31 and the bag breaking roller 21, so that the bag-loaded garbage can move toward the bag hooking roller 31 and the bag breaking roller 21, and the bag pressing part 42 squeezes and pushes the bag-loaded garbage toward the bag hooking roller 31 and the bag breaking roller 21, thereby improving the efficiency of garbage crushing. The bag hooking roller 31 hooks the garbage bag, and the bag breaking roller 21 cuts the garbage bag, so that the garbage is discharged through the garbage outlet 16. The garbage bag is hooked on the bag hooking roller 31, and the bag hooking roller comb plate 8 pushes the garbage bag on the bag hooking roller 31 off, and the garbage bag is discharged from the bag outlet 17.

[0065] In summary, the present application uses a three-roller structure to reliably break bagged garbage and separate the garbage bag from the garbage through the designed new structure. In order to achieve the above purpose, the designed mechanical structure is driven by only one motor, and the motion is transmitted to multiple rollers according to a specific relationship. The structure is simple, reliable and efficient. The design fully considers the relevant precision realization issues of processing and manufacturing, and can minimize the processing cost while ensuring the accuracy and working performance of the whole machine.

[0066] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A three-roller garbage bag breaking device, characterized in that: include, Framework (1), and A bag breaking roller assembly (2), wherein the bag breaking roller assembly (2) is rotatably arranged in the frame (1), and a bag breaking roller sheet (21) is fixedly arranged on the bag breaking roller assembly (2); A bag pressing roller assembly (4), the bag pressing roller assembly (4) being rotatably arranged in the frame (1), and a bag pressing roller sheet (41) being fixedly arranged on the bag pressing roller assembly (4); A bag hook roller assembly (3), the bag hook roller assembly (3) is rotatably arranged in the frame (1), a bag hook roller sheet (31) is fixedly arranged on the bag hook roller assembly (3), and the rotation direction of the bag hook roller sheet (31) is opposite to the rotation direction of the bag breaking roller sheet (21) and the bag pressing roller sheet (41); In the vertical direction, the rotation axis of the bag breaking roller (21) is located below the rotation axis of the bag pressing roller (41), and the bag hooking roller (31) is located between the bag breaking roller (21) and the bag pressing roller (41). In the horizontal direction, the bag hooking roller (31) is located on the same side of the bag breaking roller (21) and the bag pressing roller (41). The bag hooking roller (31) and the bag breaking roller (21) are arranged alternately. The projections of the bag hooking roller (31) and the bag breaking roller (21) and the bag pressing roller (41) in the plane where the bag hooking roller (31) is located all have overlapping parts. The bag pressing roller (41) and the bag hooking roller (31) cooperate with each other to transport the bagged garbage toward the bag breaking roller (21).

2. The three-roller garbage bag breaking device according to claim 1 is characterized in that: The bag breaking roller (21), the bag pressing roller (41), and the bag hooking roller (31) are rotatably connected in the frame (1) via three mutually parallel driving main shafts (71), and each driving main shaft (71) is provided with a plurality of rollers along its axial direction, and the bag hooking roller (31) is located in the middle of two adjacent bag breaking rollers (21).

3. The three-roller garbage bag breaking device according to claim 2 is characterized in that: The rotation speeds of the bag pressing roller (41) and the bag hooking roller (31) are the same, and the rotation speed of the bag breaking roller (21) is twice that of the bag pressing roller (41).

4. The three-roller garbage bag breaking device according to claim 3 is characterized in that: The end of the driving main shaft (71) connected to the bag pressing roller (41) is coaxially connected to a first gear (52), the end of the driving main shaft (71) connected to the bag breaking roller (21) is coaxially connected to a second gear (53), and the end of the driving main shaft (71) connected to the bag hooking roller (31) is coaxially connected to a third gear A (54) and a third gear B (55), the first gear (52) is meshed with the third gear A (54), the first gear (52) and the third gear A (54) have the same pitch circle diameter and number of teeth, the second gear (53) and the third gear B (55) are meshed with each other, and the number of teeth of the third gear B (55) is twice that of the second gear (53).

5. The three-roller garbage bag breaking device according to claim 1, characterized in that: The bag pressing roller sheet (41) is arranged in a regular polygonal shape, and a plurality of bag pressing portions (42) are arranged on the bag pressing roller sheet (41) along its circumference.

6. The three-roller garbage bag breaking device according to claim 1, characterized in that: A plurality of hook pocket surfaces (33) and limiting surfaces (35) are arranged on the hook pocket roller (31) along its circumference. The hook pocket surfaces (33) and limiting surfaces (35) are arranged alternately. The hook pocket surfaces (33) and limiting surfaces (35) are both arranged to be inclined in a direction opposite to the rotation direction of the hook pocket roller (31). As the hook pocket roller (31) rotates, the hook pocket surfaces (33) rotate in the same direction as the hook pocket roller (31), and the limiting surfaces (35) rotate in a direction opposite to the hook pocket roller (31).

7. The three-roller garbage bag breaking device according to claim 6, characterized in that: An avoidance surface is formed between the limiting surface (35) and the outer side wall of the hook bag roller (31), and the avoidance surface is a straight surface or a curved surface protruding toward the outside of the hook bag roller (31).

8. The three-roller garbage bag breaking device according to claim 7, characterized in that: A bag hook roller combing plate (8) is also installed in the frame (1). The bag hook roller combing plate (8) is located on a side of the bag hook roller sheet (31) away from the bag breaking roller sheet (21). The bag hook roller combing plate (8) is used to remove the garbage bag on the bag hook roller sheet (31).

9. The three-roller garbage bag breaking device according to claim 8, characterized in that: The hook bag roller comb plate (8) is provided with a plurality of combing grooves (83) along the axial direction of the driving main shaft (71), and the combing grooves (83) are opposite to the hook bag roller sheet (31). When the hook bag roller sheet (31) rotates and passes through the combing grooves (83), the hook bag roller comb plate (8) peels off the garbage bag on the hook bag roller sheet (31).

10. The three-roller garbage bag breaking device according to claim 9, characterized in that: In the vertical direction, the hook bag roller comb plate (8) is located above the horizontal plane where the axis of the hook bag roller sheet (31) is located, and when the hook bag surface (33) passes through the hook bag roller comb plate (8) and the avoidance surface is tangent to the upper surface of the hook bag roller comb plate (8), the angle α between the plane where the hook bag roller comb plate (8) is located and the hook bag surface (33) is 60° to 120°.

11. The three-roller garbage bag breaking device according to claim 1, characterized in that: The bag breaking roller (21), the bag pressing roller (41) and the bag hooking roller (31) are all detachably connected to the driving main shaft (71).

12. The three-roller garbage bag breaking device according to claim 11, characterized in that: The ends of the driving main shaft (71) are respectively connected to a roller tail shaft (72) and a roller head transition shaft (73); a plurality of shaft sleeves (74) arranged along the axial direction are coaxially sleeved on the driving main shaft (71); the roller sheet is clamped between adjacent shaft sleeves (74); and a plurality of shaft sleeves (74) are clamped between the roller tail shaft (72) and the roller head transition shaft (73).

13. The three-roller garbage bag breaking device according to claim 12, characterized in that: A plurality of flat keys (712) are provided on the outer side wall of the driving main shaft (71) so as to slide along the axial direction thereof. The number of the flat keys (712) on each driving main shaft (71) is respectively the same as the number of the bag hooking roller (31), the bag breaking roller (21), and the bag pressing roller (41). The flat keys (712) are connected to the inner side walls of the rollers. The shaft sleeve (74) and the flat keys (712) are arranged at intervals. The shaft sleeve (74) is provided with a keyway (741) for the flat keys (712) to be inserted.

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