A fruit pulp foreign matter cleaning device

Abstract

The utility model relates to the technical field of fruit pulp processing equipment, especially to a fruit pulp foreign matter's net detection device, including first air cylinder, pivot, feed cylinder, second air cylinder, suction cylinder and loading barrel, the output end of first air cylinder drives the suction hole on pivot and suction port intercommunication, the discharge port is closed at this time, the space in feed cylinder is closed, the piston in suction cylinder is driven to control the feed cylinder and go up the height of displacement to control the feed amount, the space in feed cylinder is big at this time, the air pressure in feed cylinder is small and is less than the air pressure in loading barrel, therefore the fruit pulp in loading barrel flows into feed cylinder through the guide pipe, and the loading operation is completed in this way, when discharging, the pivot rotates to drive the discharge hole on pivot and discharge port intercommunication, the discharge port is opened at this time, the first air cylinder drives the piston reset to press the fruit pulp from the discharge port and out of feed cylinder, solve the current fruit pulp feeding mechanism and have the problem that cannot control the feed amount and inconveniently clean.

Description

Technical Field

[0001] This utility model relates to the technical field of fruit pulp processing equipment, and in particular to a fruit pulp foreign matter detection device. Background Technology

[0002] In the processing and packaging of liquid foods such as fruit juice and fruit pulp, pre-treated fruit pulp needs to be quantitatively and continuously transported from storage tanks to containers on filling machines or conveyor belts. Currently, the common feeding methods are as follows: (1) direct conveying using a power pump (such as a centrifugal pump or screw pump); (2) using a complete vacuum suction system; and (3) a simple gravity flow method.

[0003] Method (1) uses the mechanical operation of the pump to provide power and force the fruit pulp out of the pipe. However, the pump has a complex structure and is prone to liquid residue, which not only wastes the fruit pulp but also makes it difficult to clean and disinfect thoroughly, posing a huge food safety hazard. At the same time, the operation of the pump may cause secondary shearing and damage to the pulp fibers, affecting product quality, and its energy consumption and noise are also relatively high.

[0004] Method (2) uses an independent vacuum pump to create negative pressure in a sealed silo to draw in the material, which is then discharged through a discharge valve. While this method avoids direct contact between the pump and the material, the entire system is large, complex, and expensive. It also suffers from numerous valve seals and cleaning points, which is not conducive to the hygiene requirements and high-frequency cleaning standards of the food industry.

[0005] Method (3) places the storage tank at a high position, relying on the gravity of the liquid to flow out naturally. Although this method is simple in structure and easy to clean, it cannot control the flow rate, resulting in unstable fruit pulp in the material trough on the conveyor belt. When the liquid level in the storage tank decreases, the outlet pressure decreases accordingly, resulting in unstable flow rate, which cannot meet the requirements of quantitative and uniform automated production. Utility Model Content

[0006] The purpose of this invention is to provide a fruit pulp foreign matter inspection device, thereby solving the problems of the current fruit pulp feeding mechanism having no control over the feeding amount and being inconvenient to clean.

[0007] To achieve the above objectives, this utility model provides a fruit pulp foreign matter cleaning and inspection device, including a frame, a conveyor belt on the frame, multiple material troughs arranged side by side on the conveyor belt, and a feeding cylinder on the frame. The feeding cylinder has an inlet and an outlet, and a vent hole on the top of the feeding cylinder.

[0008] A feeding hopper is located on one side of the frame. The feeding hopper contains fruit pulp and is connected to the feed inlet via a guide pipe.

[0009] An air extraction assembly includes an air extraction cylinder, a pull rod with one end slidably disposed in the air extraction cylinder, a piston and a second cylinder disposed at one end of the pull rod, the piston being slidably mounted in the air extraction cylinder, and the second cylinder being used to drive the other end of the pull rod to move back and forth, with the air extraction port of the air extraction cylinder disposed on the vent hole.

[0010] A sealing structure includes a rotating shaft and a driving device. The rotating shaft is rotatably disposed inside the feeding cylinder. The rotating shaft has a discharge hole and an air extraction hole. The discharge hole radially penetrates the rotating shaft and is connected to the air extraction hole. The driving device is used to drive the rotating shaft to rotate. When the rotating shaft rotates to a certain position, the air extraction hole is connected to the air extraction port, and a portion of the surface of the rotating shaft blocks the discharge port.

[0011] Preferably, in the above technical solution, the sealing structure further includes a connecting plate, the driving device is a first cylinder, one end of the connecting plate is connected to one end of the rotating shaft, and the output end of the first cylinder is hinged to the other end of the connecting plate.

[0012] Preferably, the above technical solution further includes a foreign object removal mechanism, which includes a support, a third cylinder, a removal plate installed on the output end of the third cylinder, and a transmission mechanism. A slide rail and a slider are installed on the support. The slider is slidably disposed on the slide rail, and the moving direction of the slider is perpendicular to the conveying direction of the conveyor belt. The third cylinder is fixedly installed on the slider, and the slider is installed on the transmission mechanism.

[0013] Preferably, in the above technical solution, the foreign object removal mechanism further includes a first motor, the transmission mechanism includes two first gears and a first synchronous belt, the first synchronous belt is disposed on the two first gears, each of the first gears meshes with the teeth of the first synchronous belt, and the output end of the first motor is connected to one of the first gears.

[0014] Preferably, the above technical solution further includes a visual inspection module, which is located between the feeding cylinder and the foreign object removal mechanism.

[0015] Preferably, the above technical solution further includes a feeding mechanism, which includes two second gears, a second synchronous belt, and a second motor. The second synchronous belt is disposed on the two second gears, and each second gear can mesh with the teeth on the second synchronous belt. The output end of the second motor is connected to one of the second gears, and the moving direction of the second synchronous belt is perpendicular to the moving direction of the conveyor belt.

[0016] Preferably, in the above technical solution, a scraper is installed on the second synchronous belt, and there are at least two scrapers, which can abut against the surface of the conveyor belt.

[0017] Preferably, in the above technical solution, a guide plate is installed at the discharge port.

[0018] Preferably, in the above technical solution, the frame is further provided with a foreign object groove, the foreign object groove is opposite to the rejection plate, and a foreign object bucket is provided at the outlet of the foreign object groove.

[0019] Preferably, in the above technical solution, the frame is further provided with a feeding trough, the feeding trough is opposite to the scraper, and a feeding bucket is provided at the outlet of the feeding trough.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The fruit pulp foreign matter cleaning and inspection device of this utility model connects the air extraction hole on the rotating shaft with the air extraction port through the output end of the first cylinder. At this time, the discharge port is closed, and the inside of the feeding cylinder is a closed space. The second cylinder is controlled to drive the piston in the air extraction cylinder to move upward to control the feeding amount. At this time, the space inside the feeding cylinder becomes larger, and the air pressure inside the feeding cylinder becomes smaller and less than the air pressure inside the feeding barrel. Therefore, the fruit pulp in the feeding barrel flows into the feeding cylinder through the guide pipe, thus completing the feeding operation. During discharge, the rotating shaft rotates to drive the discharge hole on the rotating shaft to connect with the discharge port. At this time, the discharge port is opened, and the first cylinder drives the piston to reset to force the fruit pulp out of the feeding cylinder from the discharge port. This solves the problems of the current fruit pulp feeding mechanism, which cannot control the feeding amount and is inconvenient to clean.

[0022] 2. In this utility model, when the visual inspection module detects foreign objects in the pulp in the feeding trough, when the feeding trough is moved to the foreign object removal mechanism, the first motor drives the conveying mechanism to move the removal plate from one side of the conveyor belt to the other side, while the third cylinder drives the removal plate to move down and abut against the feeding trough. The two work together to remove the pulp with foreign objects from the feeding trough.

[0023] 3. In this utility model, the fruit pulp in the material trough without foreign objects is driven by a second motor to rotate one of the second gears, thereby driving the scraper on the second synchronous belt to rotate to abut against the material trough, and moving one side of the material trough to the other side to push the fruit pulp into the discharge trough, thus completing the discharge operation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the fruit pulp foreign matter detection device in the embodiment.

[0025] Figure 2 This is a schematic diagram of the frame of the fruit pulp foreign matter detection device in the embodiment.

[0026] Figure 3 This is a front view schematic diagram of the feeding mechanism of the fruit pulp foreign matter cleaning and inspection device in the embodiment.

[0027] Figure 4 This is a schematic diagram of the bottom of the feed cylinder of the fruit pulp foreign matter cleaning and inspection device in the embodiment.

[0028] Figure 5 This is a schematic diagram of the inside of the feed cylinder of the fruit pulp foreign matter detection device in the embodiment.

[0029] Figure 6 This is a cross-sectional schematic diagram of the rotating shaft of the fruit pulp foreign matter removal and inspection device in the embodiment.

[0030] Figure 7 This is a schematic diagram of the foreign matter removal mechanism of the fruit pulp foreign matter cleaning and inspection device in the embodiment.

[0031] Figure 8 This is a schematic diagram of the feeding mechanism of the fruit pulp foreign matter cleaning and inspection device in the embodiment.

[0032] Among them, 1-frame, 2-feeding mechanism 2, 21-feeding cylinder, 210-feeding port, 211-discharge port, 212-evacuation cylinder barrel, 2120-evacuation hole, 213-guide plate, 22-sealing structure, 220-rotating shaft, 2201-discharge hole, 2202-evacuation hole, 221-connecting plate, 222-first cylinder, 23-evacuation assembly, 230-pull rod, 231-piston, 232-second cylinder 3-Cylinder, 4-Vision inspection module, 5-Foreign object rejection mechanism, 6-Support, 7-Third cylinder, 8-Rejection plate, 9-First motor, 10-First gear, 11-First synchronous belt, 12-Foreign object trough, 13-Foreign object barrel, 14-Foreign object barrel, 15-First synchronous belt, 16-Foreign object trough, 17-Foreign object barrel, 18-Discharge mechanism, 19-Second synchronous belt, 10-Second motor, 11-Scraper, 12-Discharge trough, 13-Discharge barrel, 14-Discharge barrel, 15-Loading barrel, 16-Conveyor belt, 17-Placement trough. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. Where the terms "first," "second," and "third" are used for descriptive purposes and to distinguish technical features, they should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features or the order of the indicated technical features.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0037] like Figures 1-8 As shown, the fruit pulp foreign matter removal and inspection device of this embodiment includes: frame 1, feeding mechanism 22, feeding cylinder 21, feeding port 210, discharging port 211, suction cylinder 212, guide plate 213, sealing structure 22, rotating shaft 220, discharge hole 2201, suction hole 2202, connecting plate 221, first cylinder 222, suction assembly 23, pull rod 230, piston 231, second cylinder 232, vision inspection module 3, foreign matter removal mechanism 4, support 40, third cylinder 41, removal plate 42, first motor 43, first gear 44, first synchronous belt 45, foreign matter trough 46, foreign matter bucket 47, unloading mechanism 5, second synchronous belt 50, second motor 51, scraper 52, unloading trough 53, unloading bucket 54, feeding bucket 6, conveyor belt 7 and material placement trough 70.

[0038] Continue to refer to Figures 1-8The feeding mechanism, vision inspection module 3, foreign object removal mechanism 4, and unloading mechanism 5 are sequentially installed on the frame 1. The vision inspection module 3 is existing technology, and its working principle will not be described in detail here. Multiple material troughs 70 are arranged side by side on the conveyor belt 7. The feeding bucket 6 is fixedly installed on one side of the frame 1. The feeding mechanism transports the fruit pulp in the feeding bucket 6 to the material troughs 70 of the conveyor belt 7. The vision inspection module 3 detects whether there are impurities in the fruit pulp in each material trough 70. The foreign object removal mechanism 4 removes the fruit pulp with impurities, and the unloading mechanism 5 pushes the fruit pulp without impurities out of the material trough 70.

[0039] For details, please refer to Figures 2-3 The feeding mechanism includes a feeding cylinder 21, a sealing structure 22, and an air extraction assembly 23. The feeding cylinder 21 has an inlet 210 and an outlet 211. The feeding barrel 6 is connected to the inlet 210 through a guide pipe. In the initial state, the sealing structure 22 can close the outlet 211, and the feeding cylinder 21 is in a closed state. The top of the feeding cylinder 21 has a vent hole 2120. The air extraction port of the air extraction cylinder 212 in the air extraction assembly 23 is set on the vent hole 2120. The piston 231 in the air extraction assembly 23 is slidably installed in the air extraction cylinder 212 to draw air from the feeding cylinder 21. After a pressure difference is formed between the feeding cylinder 21 and the feeding barrel 6, the fruit pulp in the feeding barrel 6 will flow through the guide pipe into the feeding cylinder 21. Then, the sealing structure 22 opens the outlet 211, and the air extraction assembly 23 then pushes out the fruit pulp in the feeding cylinder 21, thus completing the feeding operation.

[0040] For more specific details, please refer to Figure 5 The suction assembly 23 also includes a pull rod 230, a piston 231 installed at one end of the pull rod 230, and a second cylinder 232. The piston 231 is slidably installed in the suction cylinder 212, and the other end of the pull rod 230 is fixedly connected to the second cylinder 232. In the initial state, the piston 231 is located at the lower part of the suction cylinder 212. During operation, the second cylinder 232 drives the other end of the pull rod 230 to move upward, so that the piston 231 moves upward at a constant speed along the suction cylinder 212. At this time, the air pressure in the feed cylinder 21 is less than the air pressure in the feeding bucket 6, so the fruit pulp in the feeding bucket 6 is sucked into the feed cylinder 21.

[0041] refer to Figures 5-6The sealing structure 22 includes a rotating shaft 220, a connecting plate 221, and a driving device. Both ends of the rotating shaft 220 are rotatably connected to the two inner sidewalls of the feeding cylinder 21. The rotating shaft 220 has a discharge hole 2201 and an air extraction hole 2202. The discharge hole 2201 radially penetrates the rotating shaft 220 and communicates with the air extraction hole 2202. One end of the rotating shaft 220 extends out of the feeding cylinder 21 and is fixedly connected to one end of the connecting plate 221. The driving device is preferably a first cylinder 222, and the output end of the first cylinder 222 is hinged to the other end of the connecting plate 221. During feeding, the output end of the first cylinder 222 extends, and the suction hole 2202 is connected to the suction port. At this time, the discharge port 211 is blocked by part of the surface of the rotating shaft 220, and the inside of the feeding cylinder 21 is a closed space. During discharge, the output end of the first cylinder 222 retracts, causing the other end of the connecting plate 221 to move upward, thereby causing the rotating shaft 220 to rotate until the discharge hole 2201 is connected to the discharge port 211. At this time, the discharge port 211 is opened, and the second cylinder 232 drives the piston 231 to reset so as to push the pulp out of the feeding cylinder 21 from the discharge port 211.

[0042] In addition, when the pulp flows into the conveyor belt 7, splashing is inevitable. Therefore, a guide plate 213 is installed at the discharge port 211. After a small amount of pulp splashes onto the guide plate 213, it will flow back onto the conveyor belt 7 along the guide plate 213, ensuring a clean feeding environment.

[0043] Working principle: During feeding, the rotating shaft 220 rotates to connect the suction port 2202 with the vent port 2120. The suction cylinder 212 is connected to the inside of the feeding cylinder 232 through the suction port 2202 and the vent port 2120. At this time, part of the surface of the rotating shaft 220 blocks the discharge port 211. The second cylinder 232 drives the piston 231 to move upward, causing the air pressure in the feeding cylinder 21 to be lower than the air pressure in the feeding barrel 6. Therefore, the fruit pulp in the feeding barrel 6 is fed through the guide pipe. The pulp is sucked into the feed cylinder 21 until the piston 231 moves up to the predetermined height, at which point the sucking of the pulp stops, completing the quantitative feeding operation. During discharge, the output end of the first cylinder 222 drives the connecting plate 221 to move up, thereby rotating the shaft 220 until the discharge hole 2201 is connected to the discharge port 211. The second cylinder 232 drives the piston 231 to reset, so that the pulp is pushed out of the feed cylinder 21 from the discharge port 211 and flows into the material trough 70 on the conveyor belt 7.

[0044] In this embodiment, reference Figure 7The foreign object removal mechanism 4 includes a support 40, a third cylinder 41, a removal plate 42 mounted on the output end of the third cylinder 41, a transmission mechanism, and a first motor 43. A slide rail and a slider are mounted on the support 40. The slider can slide on the slide rail, and the direction of movement of the slider is perpendicular to the conveying direction of the conveyor belt 7. The third cylinder 41 is fixedly mounted on the slider, and the slider is mounted on the transmission mechanism. The first motor 43 drives the transmission mechanism to move back and forth. Specifically, the transmission mechanism includes two first gears 44 and a first synchronous belt 45. The first synchronous belt 45 is mounted on the two first gears 44, and the teeth of each first gear 44 mesh with the teeth of the first synchronous belt 45. The output end of the first motor 43 is fixedly connected to the center of one of the first gears 44. When the material trough 70 containing foreign objects in the pulp moves above the foreign object removal mechanism 4, the third cylinder 41 drives the removal plate 42 to move down to abut against the material trough 70. The first motor 43 drives the first synchronous belt 45 to move. At this time, the removal plate 42 moves from one side of the material trough 70 to the other side of the material trough 70. A foreign object trough 46 is provided on the other side of the material trough 70. The position of the foreign object trough 46 is opposite to the position of the removal plate 42. A foreign object bucket 47 is provided at the outlet of the foreign object trough 46. After the pulp containing foreign objects is pushed into the foreign object trough 46, it flows into the foreign object bucket 47. At this time, the foreign object trough 46 is emptied, and the removal of pulp containing foreign objects is completed.

[0045] refer to Figure 8 The fruit pulp, free of foreign objects, is pushed into the feeding trough 53 by the feeding mechanism 5. The feeding mechanism 5 includes two second gears, a second synchronizing belt, and a second motor 51. The second synchronizing belt 50 is mounted on the two second gears, and each second gear can mesh with the teeth on the second synchronizing belt 50. The output end of the second motor 51 is fixedly connected to the center of one of the second gears. Scrapers 52 are mounted on the second synchronizing belt 50, and there are at least two scrapers 52. The moving direction of the second synchronizing belt 50 is perpendicular to the moving direction of the conveyor belt 7. When scraper 52 rotates to the closest distance to conveyor belt 7, scraper 52 can abut against the surface of conveyor belt 7. If the emptied foreign object trough 46 moves to the unloading mechanism 5, the unloading mechanism 5 does not work. When the foreign object trough 46 containing foreign object-free fruit pulp moves to the position of unloading mechanism 5, the second motor 51 drives the second synchronous belt 50 to move, so that scraper 52 abuts against the material trough 70. Thus, scraper 52 can scrape the fruit pulp in the material trough 70 into the unloading trough 53. After that, the foreign object-free fruit pulp flows into the unloading bucket 54, completing the unloading operation.

[0046] In addition, the first motor 43 and the second motor 51 are preferably motors with self-locking function to prevent the output ends of the first motor 43 and the second motor 51 from rotating with inertia when the foreign object removal mechanism 4 and the unloading mechanism 5 are not working, thus affecting the operation of the system.

[0047] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms that can be disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A fruit pulp foreign matter cleaning and inspection device, comprising a frame, a conveyor belt mounted on the frame, and multiple material troughs arranged side by side on the conveyor belt, characterized in that: It also includes a feeding cylinder, which is mounted on the frame. The feeding cylinder has a feeding port and a discharging port, and a vent hole is provided on the top of the feeding cylinder. A feeding hopper is located on one side of the frame. The feeding hopper contains fruit pulp and is connected to the feed inlet via a guide pipe. An air extraction assembly includes an air extraction cylinder, a pull rod with one end slidably disposed in the air extraction cylinder, a piston and a second cylinder disposed at one end of the pull rod, the piston being slidably mounted in the air extraction cylinder, and the second cylinder being used to drive the other end of the pull rod to move back and forth, with the air extraction port of the air extraction cylinder disposed on the vent hole. A sealing structure includes a rotating shaft and a driving device. The rotating shaft is rotatably disposed inside the feeding cylinder. The rotating shaft has a discharge hole and an air extraction hole. The discharge hole radially penetrates the rotating shaft and is connected to the air extraction hole. The driving device is used to drive the rotating shaft to rotate. When the rotating shaft rotates to a certain position, the air extraction hole is connected to the air extraction port, and a portion of the surface of the rotating shaft blocks the discharge port.

2. The fruit pulp foreign matter detection device according to claim 1, characterized in that, The sealing structure also includes a connecting plate, the driving device is a first cylinder, one end of the connecting plate is connected to one end of the rotating shaft, and the output end of the first cylinder is hinged to the other end of the connecting plate.

3. The fruit pulp foreign matter detection device according to claim 1, characterized in that, It also includes a foreign object removal mechanism, which includes a support, a third cylinder, a removal plate mounted on the output end of the third cylinder, and a transmission mechanism. The support is equipped with a slide rail and a slider. The slider is slidably mounted on the slide rail, and the direction of movement of the slider is perpendicular to the conveying direction of the conveyor belt. The third cylinder is fixedly mounted on the slider, and the slider is mounted on the transmission mechanism.

4. The fruit pulp foreign matter detection device according to claim 3, characterized in that, The foreign object removal mechanism further includes a first motor, and the transmission mechanism includes two first gears and a first synchronous belt. The first synchronous belt is disposed on the two first gears, and each first gear meshes with the teeth of the first synchronous belt. The output end of the first motor is connected to one of the first gears.

5. The fruit pulp foreign matter detection device according to claim 1, characterized in that, It also includes a vision inspection module, which is located between the feed cylinder and the foreign object removal mechanism.

6. The fruit pulp foreign matter detection device according to claim 4, characterized in that, It also includes a feeding mechanism, which includes two second gears, a second synchronous belt, and a second motor. The second synchronous belt is mounted on the two second gears, and each second gear can mesh with the teeth on the second synchronous belt. The output end of the second motor is connected to one of the second gears, and the moving direction of the second synchronous belt is perpendicular to the moving direction of the conveyor belt.

7. The fruit pulp foreign matter detection device according to claim 6, characterized in that, The second synchronous belt is equipped with scrapers, and there are at least two scrapers that can abut against the surface of the conveyor belt.

8. The fruit pulp foreign matter detection device according to claim 1, characterized in that, A guide plate is installed at the discharge port.

9. The fruit pulp foreign matter detection device according to claim 3, characterized in that, The frame is also provided with a foreign object trough, which is opposite to the rejection plate, and a foreign object bucket is provided at the outlet of the foreign object trough.

10. The fruit pulp foreign matter detection device according to claim 7, characterized in that, The frame is also provided with a feeding trough, which is opposite to the scraper, and a feeding bucket is provided at the outlet of the feeding trough.

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