Paper medium pulping machine equipment
By improving the crushing and stirring mechanism of the paper document pulping device, the problem of low pulping efficiency is solved, the paper is completely crushed and evenly stirred, and the pulping efficiency and discharge smoothness are improved.
Patent Information
- Application Number
- CN202422984425.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-12-04
AI Technical Summary
In the existing paper document pulping device, the pulping knife disc is responsible for stirring the water and cutting the paper at the same time, resulting in insufficient stirring force, unable to quickly soak the paper, resulting in low pulping efficiency.
It adopts a crushing mechanism and a stirring mechanism. The crushing mechanism drives the crushing blades to rotate through gear meshing to achieve thorough crushing. The discharging assembly realizes the covering and opening of the barrel cover through the threaded rod and the connecting seat. The stirring mechanism sprays water through the nozzle and engages the gears to drive the stirring blades to rotate for uniform mixing.
It achieves thorough crushing and uniform mixing of paper, improves pulping efficiency, prevents paper from falling, and ensures that the crushed paper can be smoothly discharged and mixed into paper pulp.
Smart Images

Figure CN223423028U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of paper destruction, in particular to a paper medium pulping machine device. Background Art
[0002] Paper documents play an important role in recording, communicating, and backing up. For most companies, they are used very frequently. The information recorded in paper documents may involve confidential information such as business information and commercial information. Therefore, the destruction of paper documents is an important part of the confidentiality and security work of enterprises or government agencies.
[0003] Publication No. CN215940187U discloses a paper shredding and pulping device, which relates to the field of confidentiality destruction technology. The device comprises a barrel, a paper shredding structure, and a pulping blade disc. The barrel is used to hold water and has an opening at the top. The paper shredding structure is located at the opening, and the pulping blade disc rotates within the barrel.
[0004] In view of the above description, the applicant believes that the following problems exist:
[0005] During use, the pulping knife disc in the device is responsible for stirring the water and cutting the paper at the same time, resulting in weak stirring force on the water, which cannot make the water soak into the paper quickly and effectively. The unsoaked and softened paper is not easy to be cut by the blade, nor is it easy to break apart under the impact of the water flow, resulting in low pulping efficiency of the paper shredding pulping device. Utility Model Content
[0006] The purpose of the utility model is to provide a paper medium pulping machine device to solve the problems raised in the above background technology.
[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a paper medium pulping machine device, comprising a processing box, a barrel cover and a barrel body, wherein the processing box is provided with a stirring mechanism, and the barrel body is provided with a crushing mechanism;
[0008] The pulverizing mechanism includes a rotating assembly and a discharging assembly, and the discharging assembly is arranged outside the rotating assembly;
[0009] The rotating assembly includes a first motor, which is fixedly connected to the right side of the processing box, and a rotating shaft is fixedly connected to the left side of the first motor. The surface of the rotating shaft is fixedly connected to the inside of the barrel body, and the surface of the rotating shaft is fixedly connected to the first gear. The surface of the first gear is fixedly connected to the second gear all around. The axis of the first gear is fixedly connected to a rotating rod, and the left and right sides of the rotating rod are rotatably connected to connecting plates, and the outer side of the connecting plate is fixedly connected to a rotating ring. Annular grooves are provided on the left and right sides of the inner wall of the barrel body, and the surface of the rotating ring is slidably connected to the inside of the annular groove. The rotating rod and the rotating shaft surface are densely fixedly connected with crushing leaves, and the rotating rod and the rotating shaft can drive the crushing leaves to rotate, so that the paper in the barrel body can be crushed and the crushing process can be more thorough.
[0010] Preferably, the number of the second gears is four, and the four second gears and the first gear are all arranged inside the barrel body.
[0011] Preferably, the discharging assembly includes a limit block, which is fixedly connected to the left and right sides of the barrel body. There are four limit blocks, and threaded holes are opened inside the four limit blocks. The threaded holes are threadedly connected to threaded rods. The bottom of the threaded rods is fixedly connected to the second motor, and the bottom of the second motor is fixedly connected to a slider. Slide grooves are opened on the left and right sides of the barrel body, and the surface of the slider is slidably connected to the inside of the slide groove. The tops of the front and rear two threaded rods are rotatably connected to a connecting seat, and the front and rear sides of the top of the connecting seat are hinged to a hinged plate, and the other side of the hinged plate is hinged to a fixed plate. The left and right surfaces of the barrel body are fixedly connected to arc rings, and an arc groove is opened inside the arc ring. The left and right sides of the arc groove are set to openings, the surface of the fixed plate is plugged into the inside of the arc groove, and the inner sides of the left and right fixed plates are fixedly connected to the left and right sides of the barrel cover.
[0012] Preferably, there are four threaded rods, and the thread lines on the surfaces of the four threaded rods are of the same specification and in the same direction. When the threaded rods move, they can drive the connecting seat, so that the barrel cover can cover the feed port set on the barrel body, so that when the paper is shredded later, the paper will not fall off. On the contrary, when the barrel cover is removed from the discharge port set on the barrel body, it is convenient for the shredded paper to be discharged and dropped into the collection box later.
[0013] Preferably, the stirring mechanism includes a rectangular groove, which is opened at the lower end of the front face of the processing box, and the rectangular groove and the bottom of the inner wall of the processing box are both provided with a T-slot, and a T-plate is slidably connected inside the T-slot, and the top of the two T-plates is fixedly connected to a collecting box, and the left and right ends of the front face of the collecting box are fixedly connected to the mounting blocks, and the front faces of the two mounting blocks are fixedly connected to the mounting plates, and the left and right ends of the back face of the mounting plate are fixedly connected to the third motor, and the back face of the third motor is fixedly connected to the rotating shaft, the surface of the rotating shaft is fixedly connected to the third gear, the top of the third gear is meshed with the fourth gear, and the axis of the fourth gear is fixedly connected to a rotating rod, and the rotating rod and the surface of the rotating shaft are densely fixedly connected with stirring blades, a water tank is provided on the left side of the processing box, the top of the water tank is fixedly connected to a water pump, the top of the water pump is fixedly connected to a water pipe, the right side of the water pipe is fixedly connected to a diversion pipe, and both ends of the diversion pipe are fixedly connected to a delivery pipe, the delivery pipe is densely fixedly connected to a connecting pipe close to the side of the processing box, and the other side of the connecting pipe is fixedly connected to a spray head.
[0014] Preferably, the nozzles are arranged at the bottom of the barrel body, and the nozzles are all arranged inside the processing box. The nozzles spray water to facilitate adding water to the paper dropped into the collection box. At the same time, the processing box can also flush the paper debris adhered to the inner wall of the processing box.
[0015] Preferably, there are two third gears and two fourth gears, and both of the third gears and the two fourth gears are arranged between the collecting box and the mounting plate.
[0016] Compared with the prior art, the present invention provides a paper medium pulping machine with the following features:
[0017] Beneficial effects:
[0018] 1. The paper medium pulping machine equipment, through the pulverizing mechanism, since the first gear and the second gear are meshed and connected, the second gear can also drive the rotating rod to rotate when it rotates. At this time, the rotating rod and the rotating shaft can drive the pulverizing blades to rotate, which can pulverize the paper in the barrel body and make the pulverizing process more thorough. When the threaded rod and the threaded hole are threadedly connected, the threaded rod can move upward, and when the threaded rod moves, it can drive the connecting seat. When the connecting seat moves, it can make the fixed plate pass through the arc groove until the fixed plate drives the barrel cover to move inward, so that the barrel cover can cover the feed port set on the barrel body, so that when the paper is pulverized in the later stage, the paper will not fall.
[0019] 2. The paper medium pulping machine device, through the stirring mechanism, the nozzle sprays water to the processing box, which is convenient for adding water to the paper falling into the collecting box, and the processing box can also flush the paper scraps adhered to the inner wall of the processing box. The third motor drives the rotating shaft to rotate, the rotating shaft drives the third gear to rotate, and since the third gear and the fourth gear are connected by meshing, the fourth gear can drive the rotating rod to rotate, and the rotating rod and the rotating shaft drive the stirring blade to rotate, which is convenient for uniformly mixing the paper scraps and water in the collecting box, and is convenient for stirring into paper pulp. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art:
[0021] Figure 1 It is a whole structure perspective view of the present application;
[0022] Figure 2 It is a structure schematic view of the rotating assembly;
[0023] Figure 3 It is Figure 2 It is a structure schematic view of the intercepted part;
[0024] Figure 4 It is a structure schematic view of the barrel body;
[0025] Figure 5 It is a structure schematic view of the discharging assembly;
[0026] Figure 6 It is a part structure top view schematic view of the stirring mechanism;
[0027] Figure 7 It is a part structure schematic view of the stirring mechanism.
[0028] In the figure: 1. Processing box; 2. Bucket cover; 3. Crushing mechanism; 31. Rotating assembly; 311. First motor; 312. Rotating shaft; 313. First gear; 314. Second gear; 315. Rotating rod; 316. Connecting plate; 317. Crushing blade; 318. Rotating ring; 319. Annular chute; 32. Discharging assembly; 321. Chute; 322. Sliding block; 323. Limit block; 324. Threaded hole; 325. Hinge plate; 326. Fixed plate; 327. Arc ring; 328. Arc groove; 329. Connecting seat ; 3201, threaded rod; 3202, second motor; 4, stirring mechanism; 41, T-slot; 42, rectangular slot; 43, T-plate; 44, third gear; 45, third motor; 46, mounting plate; 47, fourth gear; 48, stirring blade; 49, rotating rod; 401, rotating shaft; 402, collecting box; 403, mounting block; 4001, water tank; 4002, water pump; 4003, water pipe; 4004, diversion pipe; 4005, connecting pipe; 4006, nozzle; 4007, delivery pipe; 5, barrel body. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0030] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0031] The utility model provides the following technical solutions:
[0032] Example 1
[0033] Combine Figures 1 to 5 A paper medium pulping machine device includes a processing box 1, a barrel cover 2 and a barrel body 5. The processing box 1 is provided with a stirring mechanism 4, and the barrel body 5 is provided with a crushing mechanism 3;
[0034] The crushing mechanism 3 includes a rotating assembly 31 and a discharging assembly 32 , and the discharging assembly 32 is arranged outside the rotating assembly 31 ;
[0035] The rotating assembly 31 comprises a first motor 311 fixedly connected to the right side of the processing box 1, a rotating shaft 312 fixedly connected to the left side of the first motor 311, the surface of the rotating shaft 312 and the inside of the barrel 5 are fixedly connected, a first gear 313 is fixedly connected to the surface of the rotating shaft 312, a second gear 314 is fixedly connected to the surface of the first gear 313, a rotating rod 315 is fixedly connected to the shaft center of the first gear 313, a connecting plate 316 is rotatably connected to the left and right sides of the rotating rod 315, a rotating ring 318 is fixedly connected to the outside of the connecting plate 316, annular sliding grooves 319 are formed in the left and right sides of the inner wall of the barrel 5, the surface of the rotating ring 318 and the inside of the annular sliding grooves 319 are slidably connected, and the surfaces of the rotating rod 315 and the rotating shaft 312 are densely fixedly connected with the crushing blades 317. The number of the second gears 314 is four, and the four second gears 314 and the first gear 313 are arranged inside the barrel 5.
[0036] The discharging assembly 32 comprises limiting blocks 323 fixedly connected to the left and right sides of the barrel 5, the number of the limiting blocks 323 is four, threaded holes 324 are formed in the interiors of the four limiting blocks 323, threaded rods 3201 are threadedly connected in the threaded holes 324, second motors 3202 are fixedly connected to the bottoms of the threaded rods 3201, sliding blocks 322 are fixedly connected to the bottoms of the second motors 3202, sliding grooves 321 are formed in the left and right sides of the barrel 5, the surface of the sliding block 322 and the inside of the sliding groove 321 are slidably connected, connecting seats 329 are rotatably connected to the tops of the front and rear threaded rods 3201, hinged plates 325 are hingedly connected to the top front and rear sides of the connecting seat 329, fixed plates 326 are hingedly connected to the other sides of the hinged plates 325, arc-shaped rings 327 are fixedly connected to the surfaces of the left and right sides of the barrel 5, arc-shaped grooves 328 are formed in the interiors of the arc-shaped rings 327, the left and right sides of the arc-shaped grooves 328 are arranged as openings, the surface of the fixed plate 326 and the inside of the arc-shaped groove 328 are inserted, the inner sides of the left and right fixed plates 326 are fixedly connected to the left and right sides of the barrel cover 2, and the number of the threaded rods 3201 is four.
[0037] Further, when the first gear 313 and the second gear 314 are engaged, the rotating rod 315 can also be driven to rotate when the second gear 314 rotates, at this time, the rotating rod 315 and the rotating shaft 312 can both drive the crushing blades 317 to rotate, the paper in the barrel 5 can be crushed and the crushing process is more thorough, when the threaded rod 3201 is threadedly connected with the threaded hole 324, the threaded rod 3201 can move upward, when the threaded rod 3201 moves, the connecting seat 329 can be driven to move, when the connecting seat 329 moves, the fixed plate 326 can pass through the arc-shaped groove 328 until the fixed plate 326 drives the barrel cover 2 to move inward, the barrel cover 2 can cover the feeding port arranged on the barrel 5, which is convenient for crushing the paper and preventing the paper from falling off.
[0038] Example 2
[0039] See Figure 1-7 , and on the basis of Example 1, it is further obtained that the stirring mechanism 4 includes a rectangular groove 42, the rectangular groove 42 is opened at the lower end of the front face of the processing box 1, and a T-shaped groove 41 is opened on the bottom of the inner wall of the rectangular groove 42 and the processing box 1. A T-shaped plate 43 is slidably connected inside the T-shaped groove 41, and the tops of the two T-shaped plates 43 are fixedly connected to the collecting box 402, and the left and right ends of the front face of the collecting box 402 are fixedly connected to the mounting blocks 403, and the front faces of the two mounting blocks 403 are fixedly connected to the mounting plates 46, and the left and right ends of the back face of the mounting plates 46 are fixedly connected to the third motor 45, and the back face of the third motor 45 is fixedly connected to the rotating shaft 401, and the surface of the rotating shaft 401 is fixedly connected to the third gear 44. The top of the third gear 44 is meshedly connected to the fourth gear 47, and the axis of the fourth gear 47 is fixedly connected to a rotating rod 49. The surfaces of the rotating rod 49 and the rotating shaft 401 are densely fixedly connected with stirring blades 48. A water tank 4001 is provided on the left side of the processing box 1. The top of the water tank 4001 is fixedly connected to a water pump 4002. The top of the water pump 4002 is fixedly connected to a water pipe 4003. The right side of the water pipe 4003 is fixedly connected to a diversion pipe 4004. Both ends of the diversion pipe 4004 are fixedly connected to a delivery pipe 4007. The delivery pipe 4007 is densely fixedly connected to a connecting pipe 4005 on the side close to the processing box 1, and the other side of the connecting pipe 4005 is fixedly connected to a nozzle 4006.
[0040] The nozzle 4006 is arranged at the bottom of the barrel 5, and the nozzles 4006 are all arranged inside the processing box 1. There are two third gears 44 and four gears 47, and the two third gears 44 and four gears 47 are all arranged between the collection box 402 and the mounting plate 46.
[0041] Furthermore, the nozzle 4006 sprays water into the processing box 1, so as to add water to the paper dropped into the collection box 402. At the same time, the processing box 1 can also flush the paper debris adhering to the inner wall of the processing box 1. When the third motor 45 is started, it drives the rotating shaft 401 to rotate, and the rotating shaft 401 drives the third gear 44 to rotate. Since the third gear 44 and the fourth gear 47 are engaged, the fourth gear 47 can drive the rotating rod 49 to rotate. The rotating rod 49 and the rotating shaft 401 both drive the stirring blade 48 to rotate, so as to evenly mix the paper debris and water in the collection box 402 and stir them into a paper paddle shape.
[0042] When the second motor 3202 is started, the threaded rod 3201 is driven to rotate. When the threaded rod 3201 and the threaded hole 324 are threadedly connected, the threaded rod 3201 can move upward. When the threaded rod 3201 moves, it can drive the connecting seat 329. Since the connecting seat 329, the hinged plate 325 and the fixed plate 326 are hinged, when the connecting seat 329 moves, the fixed plate 326 can pass through the arc groove 328 until the fixed plate 326 drives the bucket cover 2 to move inward, so that the bucket cover 2 can cover the feed port set on the barrel body 5, so that when the paper is shredded later, the paper will not fall. On the contrary, when the bucket cover 2 is removed from the discharge port set on the barrel body 5, it is convenient for the shredded paper to be discharged and dropped into the collection box 402 later.
[0043] When the first motor 311 is started, it drives the rotating shaft 312 to rotate. When the rotating shaft 312 drives the barrel body 5 to rotate, it can also drive the first gear 313 to rotate. Since the first gear 313 and the second gear 314 are meshed and connected, when the second gear 314 rotates, it can also drive the rotating rod 315 to rotate. At this time, the rotating rod 315 and the rotating shaft 312 can both drive the shredding blades 317 to rotate, so that the paper in the barrel body 5 can be shredded more thoroughly.
[0044] When the water pump 4002 is running, the water in the water tank 4001 is circulated and transported to the water pipe 4003, and then diverted to the delivery pipe 4007 through the diversion pipe 4004, and finally transported to the nozzle 4006 through the connecting pipe 4005 for spraying, so as to add water to the paper dropped into the collection box 402, and at the same time, the processing box 1 can also flush the paper debris adhering to the inner wall of the processing box 1;
[0045] When the third motor 45 is started, the rotating shaft 401 is driven to rotate, and the rotating shaft 401 drives the third gear 44 to rotate. Since the third gear 44 and the fourth gear 47 are meshed and connected, the fourth gear 47 can drive the rotating rod 49 to rotate. The rotating rod 49 and the rotating shaft 401 both drive the stirring blade 48 to rotate, so as to facilitate uniform mixing of paper scraps and water in the collection box 402 and facilitate stirring into a paper paddle shape.
[0046] It is to be noted that, as used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component" can include a combination of two or more components. Additionally, the terms "comprise," "comprises," and "comprising," or any variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, unless otherwise indicated herein, the terms "first," "second," "third," etc., are not intended to denote a physical order, quantity, or importance, but rather are used for the purpose of nomenclature.
Claims
1. A paper pulping machine, comprising a processing box (1), a barrel cover (2) and a barrel body (5), characterized in that: The processing box (1) is provided with a stirring mechanism (4), and the barrel (5) is provided with a crushing mechanism (3); The pulverizing mechanism (3) comprises a rotating assembly (31) and a discharging assembly (32), wherein the discharging assembly (32) is arranged outside the rotating assembly (31); The rotating assembly (31) includes a first motor (311), the first motor (311) is fixedly connected to the right side of the processing box (1), the left side of the first motor (311) is fixedly connected to a rotating shaft (312), the surface of the rotating shaft (312) is fixedly connected to the inside of the barrel (5), the surface of the rotating shaft (312) is fixedly connected to a first gear (313), the surface of the first gear (313) is fixedly connected to the second gear (314) on all sides, and the first gear (31 3) A rotating rod (315) is fixedly connected to the axis, and connecting plates (316) are rotatably connected to the left and right sides of the rotating rod (315). A rotating ring (318) is fixedly connected to the outside of the connecting plate (316). Annular sliding grooves (319) are opened on the left and right sides of the inner wall of the barrel body (5). The surface of the rotating ring (318) and the inside of the annular sliding groove (319) are slidably connected. Crushing leaves (317) are densely fixedly connected to the surfaces of the rotating rod (315) and the rotating shaft (312).
2. The paper pulping machine according to claim 1, characterized in that: There are four second gears (314), and the four second gears (314) and the first gear (313) are all arranged inside the barrel body (5).
3. The paper pulping machine according to claim 1, characterized in that: The discharging assembly (32) includes a limit block (323), and the limit block (323) is fixedly connected to the left and right sides of the barrel body (5). There are four limit blocks (323), and threaded holes (324) are provided inside the four limit blocks (323). The threaded holes (324) are internally threadedly connected to a threaded rod (3201). The bottom of the threaded rod (3201) is fixedly connected to a second motor (3202), and the bottom of the second motor (3202) is fixedly connected to a slider (322). The left and right sides of the barrel body (5) are both provided with a slide groove (321), and the surface of the slider (322) is slidably connected to the inside of the slide groove (321). The tops of the two front and rear threaded rods (3201) are rotatably connected to a connecting seat (329), and the front and rear sides of the top of the connecting seat (329) are hinged to a hinge plate (325), and the other side of the hinge plate (325) is hinged to a fixed plate (326). The left and right surfaces of the barrel body (5) are fixedly connected to arc rings (327), and an arc groove (328) is provided inside the arc ring (327). The left and right sides of the arc groove (328) are both set to be open. The surface of the fixed plate (326) and the inside of the arc groove (328) are plugged into each other, and the inner sides of the left and right fixed plates (326) are fixedly connected to the left and right sides of the barrel cover (2).
4. The paper pulping machine according to claim 3, characterized in that: There are four threaded rods (3201), and the thread lines on the surfaces of the four threaded rods (3201) have the same specifications and the same direction.
5. The paper pulping machine according to claim 1, characterized in that: The stirring mechanism (4) comprises a rectangular groove (42), the rectangular groove (42) being opened at the lower end of the front face of the processing box (1), the rectangular groove (42) and the bottom of the inner wall of the processing box (1) being opened with a T-shaped groove (41), a T-shaped plate (43) being slidably connected inside the T-shaped groove (41), the tops of the two T-shaped plates (43) being fixedly connected with a collection box (402), the left and right ends of the front face of the collection box (402) being fixedly connected with mounting blocks (403), the front faces of the two mounting blocks (403) being fixedly connected with mounting plates (46), the left and right ends of the back face of the mounting plates (46) being fixedly connected with a third motor (45), the back face of the third motor (45) being fixedly connected with a rotating shaft (401), the surface of the rotating shaft (401) being fixedly connected with a third gear (44), the third gear (44) being fixedly connected with the third gear (44) ) is meshedly connected to the top of the fourth gear (47), the axis of the fourth gear (47) is fixedly connected to a rotating rod (49), the surfaces of the rotating rod (49) and the rotating shaft (401) are densely fixedly connected to stirring blades (48), a water tank (4001) is provided on the left side of the treatment box (1), the top of the water tank (4001) is fixedly connected to a water pump (4002), the top of the water pump (4002) is fixedly connected to a water pipe (4003), the right side of the water pipe (4003) is fixedly connected to a diversion pipe (4004), both ends of the diversion pipe (4004) are fixedly connected to a delivery pipe (4007), the delivery pipe (4007) is densely fixedly connected to a connecting pipe (4005) on the side close to the treatment box (1), and the other side of the connecting pipe (4005) is fixedly connected to a nozzle (4006).
6. The paper pulping machine according to claim 5, characterized in that: The nozzles (4006) are arranged at the bottom of the barrel (5), and the nozzles (4006) are all arranged inside the processing box (1).
7. The paper pulping machine according to claim 5, characterized in that: There are two third gears (44) and two fourth gears (47), and both of the third gears (44) and the fourth gears (47) are arranged between the collecting box (402) and the mounting plate (46).